WO2025002009A1 - Trolley, tool box, tool, and connecting device capable of mounting to tool or tool box - Google Patents

Abstract

A trolley (140), comprising a connecting device (100) formed on or connected to the trolley (140), wherein the connecting device (100) is configured to mount a member to be mounted (110) to the trolley (140), and the connecting device (100) comprises: a base (10), which is formed on or connected to the trolley (140), an accommodating cavity (17) being formed in the base (10); and a coupling assembly (20), which is connected to the base (10), the coupling assembly (20) being configured to connect to the member to be mounted (110). The coupling assembly (20) comprises a connecting member (21), which cooperates with the member to be mounted (110) so as to connect the member to be mounted (110); the coupling assembly (20) has at least a connected state and a hidden state with respect to the base (10); when the coupling assembly (20) is in the connected state, the connecting member (21) is in a matching position capable of cooperating with the member to be mounted (110); and when the coupling assembly (20) is in the hidden state, the connecting member (21) is in a hidden position separated from the matching position.

Description

Trolley, tool box, tool and connecting device capable of being mounted on the tool or tool box

This application claims the priority of the Chinese patent application filed with the China Patent Office on June 30, 2023, with application number 202310802365.5, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to a connection device, for example, to a connection device that can be mounted to a tool or a tool box.

Background Art

A related art connection device is capable of being mounted to a tool or a tool box.

When users use tools or toolboxes in a toolbox system, they often need to carry multiple tools or toolboxes to the workplace. In this way, users often stack the tools or toolboxes and transport them to the workplace together. Therefore, some tools, tools and toolboxes, or toolboxes and toolboxes are connected together by connecting devices. However, in some common working conditions, users need to place large objects or even irregular objects on the tools or toolboxes. When these objects are placed on the storage surface of the tools or toolboxes, the connecting devices may interfere with the above objects. Therefore, we hope to produce a structure that can solve this problem.

This section provides background information related to the present application which is not necessarily prior art.

Summary of the invention

One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a connection device with a simple structure and convenient operation, which can be installed on a tool or a tool box.

The present application adopts the following technical solution: a trolley, comprising a connecting device formed or connected to the trolley, the connecting device being configured to install a part to be installed on the trolley, and characterized in that the connecting device comprises: a base formed or connected to the trolley, the base forming a accommodating cavity; a connecting assembly connected to the base, the connecting assembly being configured to connect the part to be installed; the connecting assembly comprises: a connecting piece, cooperating with the part to be installed to connect the part to be installed; the connecting assembly has at least a connected state and a hidden state relative to the base, when the connecting assembly is in the connected state, the connecting piece is in a mating position capable of mating with the part to be installed, and when the connecting assembly is in the hidden state, the connecting piece is in a hidden position detached from the mating position.

In some embodiments, the connecting assembly is switched from a connected state to a hidden state relative to the base by one or a combination of rotation, movement, and disassembly.

In some embodiments, when the coupling assembly is in the hidden state, the coupling assembly is lower than the upper surface of the base, or lower than the storage surface of the cart.

In some embodiments, when the coupling assembly is in the connected state, the coupling assembly can be driven to move to the hidden state.

In some embodiments, the coupling assembly further comprises a driving member, which can be inserted into the base to switch the coupling assembly from the hidden state to the connected state.

In some embodiments, the connecting assembly also includes a connecting seat for mounting the connecting member, the connecting seat is pivotally connected to the base, and the connecting seat has an end face. When the connecting assembly is in a connected state, the end face is at least partially in contact with the base. When the connecting assembly is in a hidden state, the end face is lower than the upper surface of the base, or lower than the storage surface of the cart.

In some embodiments, the connecting seat of the connecting piece is connected to the base, and the connecting assembly switches from a connected state to a hidden state. The connecting assembly needs to be folded upward and then slid downward into the accommodating cavity so that the connecting assembly is lower than the upper surface of the base, or lower than the storage surface of the cart.

In some embodiments, the driving member further includes a driving surface, and during the process of inserting the driving member into the base, the driving surface contacts the connecting assembly and drives the connecting assembly to slide upward until the connecting assembly switches from a hidden state to a connected state.

In some embodiments, the driving member further includes a driving surface. During the process of inserting the driving member into the base, the driving surface contacts the connecting component and drives the connecting component to fold upward until the connecting component switches from a hidden state to a connected state.

In some embodiments, the connecting device also includes a first clamping portion and a second clamping portion that cooperate with the connecting piece. The first clamping portion and the second clamping portion are relatively arranged on both sides of the connecting seat. When the connecting assembly is in a connected state, the connecting seat is clamped with the first clamping portion and the second clamping portion, and the connecting piece and the base remain relatively fixed.

In some embodiments, the connecting member includes a buckle configured to cooperate with the member to be installed, and the buckle is higher than the upper surface of the base in the up-down direction.

In some embodiments, the connecting assembly also includes a connecting seat for mounting the connecting member, the connecting seat is pivotally connected to the base, and the connecting seat has an end face. When the connecting assembly is in a connected state, the end face is at least partially in contact with the base. When the connecting assembly is in a hidden state, the end face is basically flush with the upper surface of the base, or the end face is basically flush with the storage surface of the cart.

In some embodiments, when the coupling assembly is in the hidden state, the coupling assembly is substantially flush with the upper surface of the base, or the coupling assembly is substantially flush with the storage surface of the cart.

In some embodiments, when the connecting assembly is in a hidden state, the component to be installed can be directly stacked on the connecting component.

In some embodiments, when the connecting assembly is in the hidden state, the connecting member is configured to require at least two steps to connect with the member to be installed.

A toolbox includes a connecting device formed or connected to the toolbox, the connecting device is configured to install a to-be-installed part on the toolbox, the connecting device includes: a base formed or connected to the toolbox, the base is formed with a accommodating cavity; a connecting assembly connected to the base, the connecting assembly is configured to connect the to-be-installed part; the connecting assembly includes: a connecting part, which cooperates with the to-be-installed part to connect to the to-be-installed part; the connecting assembly has at least a connected state and a hidden state relative to the base, when the connecting assembly is in the connected state, the connecting part is in a mating position capable of mating with the to-be-installed part, and when the connecting assembly is in the hidden state, the connecting part is in a hidden position disengaged from the mating position.

A tool includes a connecting device formed or connected to the tool, the connecting device is configured to install a part to be installed on a toolbox, the connecting device includes: a base formed or connected to the tool, the base is formed with a accommodating cavity; a connecting assembly connected to the base, the connecting assembly is configured to connect the part to be installed; the connecting assembly includes: a connecting piece, which cooperates with the part to be installed to connect the part to be installed; the connecting assembly has at least a connected state and a hidden state relative to the base, when the connecting assembly is in the connected state, the connecting piece is in a mating position capable of mating with the part to be installed, and when the connecting assembly is in the hidden state, the connecting piece is in a hidden position disengaged from the mating position.

A connecting device that can be installed to a tool or a toolbox, the connecting device is configured to install a part to be installed to the tool or the toolbox, the connecting device includes: a base, formed or connected to the tool or the toolbox, the base is formed with a accommodating cavity; a connecting assembly, connected to the base, the connecting assembly is configured to connect the part to be installed; the connecting assembly includes: a connecting piece, which cooperates with the part to be installed to connect to the part to be installed; the connecting assembly has at least a connected state and a hidden state relative to the base, when the connecting assembly is in the connected state, the connecting piece is in a matching position that can cooperate with the part to be installed, and when the connecting assembly is in the hidden state, the connecting piece is in a hidden position that is separated from the matching position.

In some embodiments, the connecting assembly is switched from a connected state to a hidden state relative to the base by one or a combination of rotation, movement, and disassembly.

In some embodiments, when the coupling assembly is in the hidden state, the coupling assembly is lower than the upper surface of the base, or lower than the storage surface of the tool or tool box.

In some embodiments, when the coupling assembly is in the connected state, the coupling assembly can be driven to move to the hidden state.

In some embodiments, the coupling assembly further comprises a driving member, which can be inserted into the base to switch the coupling assembly from the hidden state to the connected state.

A connection device that can be installed on a tool or a tool box, the connection device is configured to install a to-be-installed part on the tool or the tool box, characterized in that the connection device comprises: a base formed or connected to the tool or the tool box; a connecting component connected to the base, the connecting component being configured to connect the to-be-installed part; and a connecting component comprising: In summary: a connecting piece that cooperates with a piece to be installed to connect the piece to be installed; the connecting component has at least a hidden state relative to the base, and when the connecting component is in the hidden state, the connecting piece is lower than the upper surface of the base, or lower than the placement surface of the tool or tool box.

The benefit of the present application lies in: providing an upper connecting device that can be applied to a trolley, tool or toolbox, the connecting component has at least a switchable connection state and a hidden state, when the connecting component is in the connection state, the user can connect the to-be-installed part to the trolley, tool or toolbox through the connecting piece; when the connecting component is in the hidden state, the user can place any object on the storage surface of the tool or toolbox without damaging the connecting component, and similarly, the connecting component will not interfere with the object, that is, the diversity of the functions of the trolley, tool or toolbox is increased, and it is convenient for users to use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a connecting device in the present application applied to a trolley;

FIG2 is a schematic diagram of the connection device of the present application applied to a UTV;

FIG3 is a schematic diagram of the connection device of the present application applied to a tool box;

FIG4 is a perspective view of a first embodiment of the connection device in the present application, and the connection assembly is in a connected state;

FIG5 is a perspective view of a certain position of the connection assembly in FIG4 during the process of switching from a connected state to a hidden state;

FIG6 is a perspective view of the connecting assembly in FIG4 in a hidden state;

FIG7 is a cross-sectional view of the connecting device in FIG4;

FIG. 8 is a cross-sectional view of the connection device in FIG. 6

FIG9 is a perspective view of the connection assembly and the base in FIG4 separated;

FIG10 is a perspective view of a second embodiment of the connecting device in the present application, and the connecting assembly is in a connected state;

FIG11 is a perspective view of the connecting assembly in FIG10 in a hidden state;

FIG12 is a cross-sectional view of the connecting device in FIG10;

FIG13 is a cross-sectional view of the connecting device in FIG11;

FIG14 is a perspective view of the connection assembly and the base in FIG10 separated;

FIG15 is a perspective view of the connection assembly and the base in FIG14 separated from another perspective;

FIG. 16 is a perspective view of a third embodiment of the connection device in the present application, and the connection assembly in the figure is In connected state;

FIG17 is a perspective view of the connecting assembly in FIG16 in a hidden state;

Fig. 18 is a cross-sectional view of the connecting device in Fig. 17;

FIG19 is a cross-sectional view of the connecting device in FIG16;

FIG20 is a perspective view of the connection assembly, the driving member, and the base in FIG16 separated;

FIG21 is a perspective view of a fourth embodiment of the connection device in the present application, and the connection assembly is in a connected state;

FIG22 is a perspective view of the connecting assembly in FIG21 in a hidden state;

Fig. 23 is a cross-sectional view of the connecting device in Fig. 21;

Fig. 24 is a cross-sectional view of the connecting device in Fig. 22;

FIG25 is a perspective view of the connection assembly, the driving member, and the base in FIG21 separated;

FIG26 is a perspective view of the connection assembly, the driving member, and the base in FIG25 separated from another perspective;

FIG27 is a perspective view of a fifth embodiment of the connection device in the present application, and the connection assembly is in a connected state;

FIG28 is a perspective view of the connecting assembly in FIG27 in a hidden state;

FIG29 is a perspective view of the coupling assembly in FIG27 separated upward;

FIG30 is a perspective view of the coupling assembly in FIG27 installed downward;

FIG31 is a partially enlarged view of FIG1 .

DETAILED DESCRIPTION

Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

In this application, the term "and/or" is a description of the association relationship between related objects, indicating that there can be three relationships. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this application generally indicates that the related objects before and after are An "and/or" relationship.

In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1-4 and 31, a connecting device 100 is shown, which can install the part to be installed 110 on the tool 120 or the tool box 130. The connecting device 100 includes a base 10 and a connecting assembly 20. The base 10 is formed with a receiving cavity 17, and the connecting assembly 20 can be at least partially located in the receiving cavity 17. The connecting assembly 20 is configured to connect the part to be installed 110; the connecting assembly 20 can move relative to the base 10, and the movement here includes one or more combinations of rotation, movement, and disassembly. The base 10 is formed or connected to the tool 120 or the tool box 130. It should be noted that the rotation here includes flipping, folding, Rotation, etc., and the movement here also includes curved movement, linear movement, and reciprocating movement, etc.

The connecting assembly 20 moves relative to the base 10. During the movement of the connecting assembly 20, the connecting assembly 20 has at least a connected state and a hidden state relative to the base 10. When the connecting assembly 20 is in the connected state, the connecting member 21 of the connecting assembly 20 is in a matching position that can match with the to-be-installed member 110. It can also be understood that when the connecting assembly 20 is in the matching position, the to-be-installed member 110 can be connected to the tool 120 or the toolbox 130. When the connecting assembly 20 is in the hidden state, the connecting member 21 is in a hidden position that is separated from the matching position. It can also be understood that when the connecting assembly 20 is in the hidden position, the to-be-installed member 110 cannot be connected to the tool 120 or the toolbox 130. However, the to-be-installed member can be directly stacked on the connecting assembly 20.

The parts to be installed 110 here include but are not limited to bench tools 120, charging devices, power supply devices, lighting devices, refrigeration devices, heating devices, blowing devices, tool boxes 130, display components and other items. The tools 120 here can be DC or AC tools 20, including but not limited to UTV, riding lawn mowers, electric vehicles, electric motorcycles, or tools driven by a mixture of hydrocarbon substances such as diesel, gasoline or kerosene as energy, including but not limited to tractors, etc., or non-energy-driven tools 120, including but not limited to bicycles, carts 140, trailers, fixed workbenches, storage racks, etc. The tool box 130 also includes but is not limited to hand-pushed tool boxes 130, self-driven tool boxes 130, foldable tools 120, ordinary tool boxes 130 for storing electric tools, crates, drawer boxes, etc. In other words, as long as the connecting device can be installed on the tool or the part to be installed.

The connection device 100 is configured in this way. When the user needs to use its connection function, the connection component 20 is in the connection state. When the user does not need to use its connection function, the connection component 20 is in the hidden state. This can also protect the connection component 20 and facilitate the user's selection. As a feasible embodiment, when the connection component 20 is in the hidden state, the connection member 21 is lower than the upper surface 11 of the base 10, or lower than the placement surface 121 of the tool 120 or the tool box 130. It can be understood that the connection component 20 has at least two states relative to the base 10, namely the connection state and the hidden state. When the connection component 20 is in the connection state, the connection member 21 at least partially protrudes from the upper surface 11 of the base 10, or the tool 120 or the placement surface 121 of the tool 120, and the connection member 21 can be connected to the to-be-installed member 110. When the connecting assembly 20 is in a hidden state, the connecting member 21 is lower than the upper surface 11 of the base 10, or lower than the storage surface 121 of the tool 120 or the toolbox 130. Further, when the connecting assembly 20 is in a hidden state, the connecting assembly 20 is lower than the upper surface 11 of the base 10, or lower than the storage surface 121 of the tool 120 or the toolbox 130. Of course, when the connecting assembly 20 is in a hidden state, the connecting assembly 20 may be flush with the upper surface 11 of the base 10, or the connecting assembly 20 may be flush with the storage surface 121 of the tool 120 or the toolbox 130. It should be noted that, in some feasible embodiments, when the connecting assembly 20 is in a hidden state, that is, the connecting member 21 is lower than the upper surface 11 of the base 10, or lower than the storage surface 121 of the tool 120 or the toolbox 130, the to-be-installed member 110 may also be connected to the connecting member 21. The base 10 is formed on the tool 120 or the tool box 130, or is detachably connected to the tool 120 or the tool box 130. When the tool 120 or the tool box 130 is in the hidden state, the upper surface 11 of the base 10 is lower than the storage surface 121 of the tool 120 or the tool box 130. The storage surface 121 of the tool 120 or the tool box 130 can be used to directly place items, etc., or used as a workbench. The connecting component 20 is arranged so that when it is in the hidden state, the connecting component 20 is lower than the upper surface 11 of the base 10 or the storage surface 121 of the tool 120 or the tool box 130. In this way, when the user places items on the storage surface 121 of the tool 120 or the tool box 130 or performs other operations, the connecting component 20 will not cause any obstruction. At the same time, it prevents the user from damaging the connecting component 20 when stacking items or performing other operations, which can further extend the service life of the connecting component 20.

In order to clearly describe the technical solution of the present application and the effect brought about by the connecting device 100, a trolley 140 is taken as an example here, but it is not limited to the trolley 140, and it can also be other tools 120. Similarly, the tool box 130 is taken as an example of the part to be installed 110 here, but it is not limited to the tool box 130, and it can also be the other items mentioned above.

As shown in FIG1 , a trolley 140 is suitable for transporting and placing a toolbox 130. From the perspective of working conditions, when a user goes to work at a workplace, he or she generally needs to carry tools 120 to be used, and in order to facilitate the user to carry and move the above tools 120, the user generally uses a toolbox 130 to store the above tools 120. The user can place, hang or fix the toolbox 130 or the tools 120 on the trolley 140, so that the user can use the trolley 140 to transport the toolbox 130 to the workplace, and can also place the tools 120 at the workplace.

The trolley 140 includes a first support plate 141, a second support plate 142, a travel assembly 143, and a support assembly 145. The first support plate 141 and the second support plate 142 are arranged at intervals, the second support plate 142 is arranged on the upper side of the first support plate 141, the travel assembly 143 is connected to the lower side of the first support plate 141, and the support assembly 145 connects the first support plate 141 and the second support plate 142.

The connecting device 100 is installed on the first support plate 141 and/or the second support plate 142. As an embodiment, the base 10 is formed on the first support plate 141 and/or the second support plate 142. As another embodiment, the base 10 is detachably connected to the first support plate 141 and/or the second support plate 142, that is, the base 10 can be connected to the first support plate 141 and/or the second support plate 142 by means of one or a combination of screws, rivets, interference fit, clamping, and mortise and tenon joints. The connection method between the base 10 and the first support plate 141 and/or the second support plate 142 is not limited here, as long as the base 10 can be fixedly connected to the first support plate 141 and/or the second support plate 142.

As an embodiment, the base 10 is directly formed on the first support plate 141. Of course, for the stability of the connection, a plurality of connecting devices 100 can be set on the first support plate 141. When the user needs to connect the tool box 130 to the first support plate 141, the tool box 130 can be fixedly connected to the first support plate 141 by switching the connecting assembly 20 to the connecting state. When the user does not need to connect the tool box 130 to the first support plate 141, the user only needs to switch the connecting assembly 20 to the hidden state. In this way, the user can stack other tools 120 on the first support plate 141 without worrying about other tools 120 being transported or The connecting assembly 20 is damaged during the transportation. That is to say, there is no other protruding structure on the first supporting plate 141 at this time, and the user can switch the first supporting member 141 into a flat plate, and the user can directly stack some of the components to be installed.

In order to more stably install the toolbox 130 on the first support plate 141, connecting devices 100 are set on opposite sides of the first support plate 141. Of course, if the length of the first support plate 141 is sufficient, multiple pairs of relatively arranged connecting devices 100 can be set on the first support plate 141 to install the toolbox 130 or other items.

As an embodiment, the coupling assembly 20 includes a connector 21, a positioning member 22, and a connector seat 23. The positioning member 22 is fixedly connected to the toolbox 130 or formed in one piece, and the connector seat 23 is mounted on the base 10. The connector seat 23 is fixedly connected to the base 10. Of course, since the base 10 is directly formed on the first support plate 141, it can also be understood that the connector seat 23 is fixedly connected to the first support plate 141, and the connector 21 is arranged in the connector seat 23. The connector 21 can move relative to the connector seat 23. The connector 21 has at least a separation position relative to the connector seat 23 to keep the positioning member 22 separated from the connector 21, and an interlocking position to interlock the connector 21 with the positioning member 22. The connector 21 can be driven to switch between the separation position and the interlocking position. Exemplarily, the connecting member 21 is a buckle 24, and the positioning member 22 is a groove 25. When the user needs to connect the toolbox 130 to the first support plate 141, the buckle 24 can be snapped into the groove 25. When the user needs to remove the toolbox 130 from the first support plate 141, the buckle 24 can be disengaged from the groove 25. When the connecting assembly 20 is in a connected state, the buckle 24 is higher than the upper surface 11 of the base in the up-down direction. Of course, other structures can also be used, and the connection method between the connecting member 21 and the toolbox 130 is not limited here, as long as the connection and separation between the toolbox 130 and the connecting assembly 20 can be achieved.

FIG. 4 to FIG. 9 show an embodiment in which the connecting assembly 20 is switched from a connected state to a hidden state relative to the base 10 .

In order to clearly explain the technical solution in this embodiment, the upper, lower, front, rear, left and right are defined as shown in Figure 4. It should be noted that, in the absence of specific instructions, the upper and lower, front and rear, left and right mentioned below all refer to the state of the connecting device when it is stationary as shown in Figure 4.

When the user needs to switch the connecting assembly 20 from the connected state to the hidden state, the user can fold the connecting assembly 20 upwards, and then slide the connecting assembly 20 downwards until the connecting assembly 20 is in the accommodating cavity 17 .

Exemplarily, the base 10 includes a first connecting plate 12, a second connecting plate 13, a third connecting plate 14, and a fourth connecting plate 15 that are relatively spaced apart, and a fifth connecting plate 16 that connects the first connecting plate 12, the second connecting plate 13, the third connecting plate 14, and the fourth connecting plate 15, and the fifth connecting plate 16 is opposite to the upper surface 11 of the base 10. The third connecting plate 14 connects one end of the first connecting plate 12 and the second connecting plate 13, and the fourth connecting plate 15 connects the other end of the first connecting plate 12 and the second connecting plate 13. In the up-down direction, The length of the first connecting plate 12 is less than that of the second connecting plate 13, and the length of the third connecting plate 14 and the length of the fourth connecting plate 15 are substantially the same as those of the second connecting plate 13. That is to say, the first connecting plate 12, the third connecting plate 14 and the fourth connecting plate 15 basically form a "concave" shape at the end. The inner walls of the first connecting plate 12, the second connecting plate 13, the third connecting plate 14, the fourth connecting plate 15 and the fifth connecting plate 16 basically form a semi-enclosed accommodating cavity 17 that opens upward, and the connecting assembly 20 can be basically accommodated in the accommodating cavity 17. The upper end of the first connecting plate 12 has a butting surface 122, and when the connecting assembly 20 is in a connected state, the butting surface 122 butts against the connecting seat 23, so that when the tool box 130 is installed on the connecting assembly 20, the butting surface 122 can form a stable support for the connecting assembly 20. Of course, the first connecting plate 12 may also have other structures, for example, the upper surface 11 of the first connecting plate 12 may be partially recessed downward to form a butting surface 122, and the butting surface 122 is configured to butt against the connecting seat 23 when the connecting assembly 20 is in the connected state. Of course, the fifth connecting plate 16 may also have a protruding portion to form a butting surface 122, and the butting surface 122 is configured to butt against the connecting seat 23 when the connecting assembly 20 is in the connected state.

The first connecting plate 12 corresponds to the first connecting inner wall 123, the second connecting plate 13 corresponds to the second connecting inner wall 131, the third connecting plate 14 corresponds to the third connecting inner wall 146, the fourth connecting plate 15 corresponds to the fourth connecting inner wall 151, and the fifth connecting plate 16 corresponds to the fifth connecting inner wall 161. Since the base 10 is directly formed on the first supporting plate 141 of the trolley 140, that is, the first connecting plate 12, the second connecting plate 13, the third connecting plate 14, the fourth connecting plate 15 and the fifth connecting plate 16 are directly formed by the first supporting plate 141.

The third connecting inner wall 146 and the fourth connecting inner wall 151 are connected or formed with corresponding supporting ends with substantially identical structures, specifically, a first supporting end and a second supporting end 152 , and both the first supporting end and the second supporting end 152 protrude outwards. The two sides of the connecting seat 23 are respectively connected to the first supporting end and the second supporting end 152. Exemplarily, the two sides of the connecting seat 23 form a long strip of grooves 25 with basically the same structure, specifically a first groove 26 and a second groove 25. Both ends of the first groove 26 are arc-shaped, and the arcs on both sides are the first end 28 and the second end 29. In the extension direction of the first groove 26, the first end 28 is located on the side close to the connecting member 21. Similarly, both ends of the second groove 25 are also arc-shaped, and the arcs on both sides are the third end and the fourth end. In the extension direction of the first groove 26, the third end is located on the side close to the connecting member 21. Here, the first groove 26 abuts against the first supporting end, and the second groove 25 abuts against the second supporting end 152. Due to the restriction and guidance of the first supporting end and the second supporting end 152, the connecting component 20 realizes state switching.

The third connecting inner wall 146 and the fourth connecting inner wall 151 are connected or formed with stoppers of basically the same structure, namely, the first stopper 148 and the second stopper 153. The two sides of the connecting seat 23 are also provided with clamping parts, namely, the first clamping part 33 and the second clamping part. The first stopper 148 and the second clamping part can be matched, and the second stopper 153 and the second clamping part can also be matched. When the first stopper 148 and the second clamping part are in contact, and the second stopper 153 and the second clamping part are in contact, the connecting assembly 20 is in a connected state. At the same time, the first stopper 148 and the second stopper 153 are also used to prevent the connection from being blocked when there is no external force driving. When the connection assembly 20 moves.

The original state of the connection assembly 20 is defined as the hidden state, at which time the connection member 21 is in the accommodating cavity 17, at which time the first end 28 of the first groove 26 abuts against the first support end, and the third end of the second groove 25 abuts against the second support end 152. When the user wants to switch the connection assembly 20 to the connected state, the user needs to lift the connection assembly 20 upward, so that the first end 28 is separated from the first support end, the third end is separated from the second support end 152, and the user continues to lift the connection assembly 20 upward until the first support end and the second end 29 abut, and the second support end 152 abuts against the fourth end, and then stops moving upward. The user turns outward with the contact point where the first support end and the second end 29 abut as the axis, until the first stopper 148 abuts against the second clamping portion, and the second stopper 153 abuts against the second clamping portion, thereby realizing the switching of the connection assembly 20 from the hidden state to the connected state. When the user needs to switch the connection assembly 20 from the connected state to the hidden state, the user only needs to flip upward with the above-mentioned contact point as the axis until the extension direction of the groove 25 is roughly parallel to the up-down direction, and then remove the external force. At this time, the connection assembly 20 is acted upon by gravity and guided by the first support end and the second support end 152 to move downward to the hidden state. At this time, the switching is completed.

When the connection assembly 20 is in the hidden state, the connection seat 23 has at least one upward surface, which is defined as the end surface 35. In the up-down direction, the end surface 35 is the farthest from the fifth connection plate 16, and the end surface 35 is lower than the surface of the first support plate 141, that is, lower than the storage surface 121 of the first support plate 141. In this way, when the user places items on the first support plate 141, the connection assembly 20 will not prevent the user from placing items on the first connection plate 12, and the items placed on the first connection plate 12 will not damage the connection assembly 20 during transportation or handling. When the user needs to use the connector 21, he only needs to switch the connection assembly 20 to the connection state.

As shown in Figures 10 to 15, the second embodiment of the connection assembly 210 switching from the connection state to the hidden state relative to the base 220. It should be noted that the second embodiment is different from the first embodiment only in the switching method, and the specific connection structure between the connection assembly 210 and the base 220 is inconsistent. Only the parts of the second embodiment that are different from the first embodiment are introduced here, and the other structures can refer to the above text.

In order to clearly explain the technical solution in this embodiment, the upper, lower, front, rear, left and right are defined as shown in Figure 10. It should be noted that, in the absence of specific instructions, the upper and lower, front and rear, left and right mentioned below all refer to the state of the connecting device when it is stationary as shown in Figure 10.

When the user needs to switch the connecting assembly 210 from the connected state to the hidden state, the user can fold the connecting assembly 210 downward until the connecting assembly 210 is in the accommodating cavity 226 .

Exemplarily, the base 220 includes a first connecting plate 221, a second connecting plate 222, a third connecting plate 223, and a fourth connecting plate 224 that are relatively spaced apart, and a fifth connecting plate 225 that connects the first connecting plate 221, the second connecting plate 222, the third connecting plate 223, and the fourth connecting plate 224, and the fifth connecting plate 225 is opposite to the upper surface of the base 220. The third connecting plate 223 connects one end of the first connecting plate 221 and the second connecting plate 222, and the fourth connecting plate 224 connects the other end of the first connecting plate 221 and the second connecting plate 222. In the downward direction, the length of the first connecting plate 221 is less than the length of the second connecting plate 222, and the length of the third connecting plate 223 and the length of the fourth connecting plate 224 are substantially the same as the length of the second connecting plate 222. That is, the first connecting plate 221, the third connecting plate 223 and the fourth connecting plate 224 substantially form a "concave" shape at the end. The inner walls of the first connecting plate 221, the second connecting plate 222, the third connecting plate 223, the fourth connecting plate 224 and the fifth connecting plate 225 substantially form a semi-enclosed accommodating cavity 226 that opens upward, and the connecting assembly 210 can be substantially accommodated in the accommodating cavity 226. The upper surface of the first connecting plate 221 can be partially recessed downward to form a supporting surface, which is configured to abut against the connecting seat when the connecting assembly 210 is in a connected state. Of course, the first connecting plate 221 may also have other structures, for example, the upper end of the first connecting plate 221 has a butting surface, and when the connecting assembly 210 is in the connected state, the butting surface butts against the connecting seat, so that when the tool box is installed on the connecting assembly 210, the butting surface can form a stable support for the connecting assembly 210. Of course, it is also possible that a portion of the fifth connecting plate 225 protrudes to form a butting surface, and the butting surface is configured to butt against the connecting seat when the connecting assembly 210 is in the connected state.

The first connecting plate 221 corresponds to the first connecting inner wall 230, the second connecting plate 222 corresponds to the second connecting inner wall 231, the third connecting plate 223 corresponds to the third connecting inner wall 232, the fourth connecting plate 224 corresponds to the fourth connecting inner wall 233, and the fifth connecting plate 225 corresponds to the fifth connecting inner wall 234. Since the base 220 is directly formed on the first supporting plate of the trolley, that is, the first connecting plate 221, the second connecting plate 222, the third connecting plate 223, the fourth connecting plate 224 and the fifth connecting plate 225 are directly formed by the first supporting plate.

The third connecting inner wall 232 and the fourth connecting inner wall 233 are connected or formed with corresponding supporting ends of substantially the same structure, specifically, the first supporting end 235 and the second supporting end 236, and the first supporting end 235 and the second supporting end 236 are both protruded outward. The two sides of the connecting seat are respectively connected to the first supporting end 235 and the second supporting end 236. For example, the two sides of the connecting seat form a first groove 237 and a second groove 238 adapted to the first supporting end 235 and the second supporting end 236, the first supporting end 235 and the second supporting end 236 are cylindrical protrusions, and the first groove 237 and the second groove 238 are cylindrical grooves. The first supporting end 235 abuts against the first groove 237, and the second supporting end 236 abuts against the second groove 238. The connecting assembly 210 is flipped around the axis of the first supporting end 235 or the second supporting end 236, thereby realizing the switching of the state. Of course, the first supporting end 235 and the second supporting end 236 may be arranged on the connecting seat, and the first groove 237 and the second groove 238 may be arranged on the third connecting inner wall 232 and the fourth connecting inner wall 233 .

The third connecting inner wall 232 and the fourth connecting inner wall 233 are connected or formed with stoppers of basically the same structure, which are the corresponding first stopper 241 and the second stopper 242, and the corresponding third stopper 243 and the fourth stopper 244. Clamping parts are also provided on both sides of the connecting seat, which are the first clamping part 245 and the second clamping part 246. The first stopper 241 and the first clamping part 245 can be matched, or the third stopper 243 and the first clamping part 245 can be matched, and the second stopper 242 and the second clamping part 246 can also be matched, or the fourth stopper 244 and the second clamping part 246 can be matched. When the first stopper 241 and the first clamping part 245 are in contact, the second stopper 242 and the second clamping part 246 are in contact with each other. When in abutment, the connection assembly 210 is in a connected state, and the first stopper 241 and the second stopper 242 are also used to prevent the connection assembly 210 from moving when there is no external force driving. When the third stopper 243 and the first clamping portion 245 are in abutment, and the fourth stopper 244 and the second clamping portion 246 are in abutment, the connection assembly 210 is in a hidden state. At the same time, the third stopper 243 and the fourth stopper 244 are also used to prevent the connection assembly 210 from moving when there is no external force driving.

When the connection assembly 210 is in a hidden state, the connection seat has at least one upward surface, which is defined as an end surface 247. In the up-down direction, the distance between the end surface 247 and the fifth connection plate 225 is the farthest, and the end surface 247 is lower than the surface of the first support plate, that is, lower than the storage surface of the first support plate. In this way, when the user places items on the first support plate, the connection assembly 210 will not prevent the user from placing items on the first connection plate 221, and the items placed on the first connection plate 221 will not damage the connection assembly 210 during transportation or handling. When the user needs to use the connector, he only needs to switch the connection assembly 210 to the connection state.

The original state of the connection assembly 210 is defined as the hidden state. At this time, the connection member is in the accommodating cavity 226. When the user wants to switch the connection assembly 210 to the connected state, the user needs to fold the connection assembly 210 upward with the contact point between the first support end 235 and the first groove 237 as the axis until the end surface 247 of the connection assembly 210 abuts against the abutting surface of the first connecting plate 221, and the connection assembly 210 stops rotating, thereby realizing the switching of the connection assembly 210 from the hidden state to the connected state. When the user needs to switch the connection assembly 210 from the connected state to the hidden state, just rotate downward with the above-mentioned contact point as the axis until the connection assembly 210 cannot rotate. At this time, the switching is completed.

As shown in Figures 16 to 20, a third embodiment of the connection assembly switching from a connection state to a hidden state relative to the base 320 is shown. It should be noted that the third embodiment is different from the first embodiment only in the switching method, and the specific connection structure between the connection assembly and the base 320 is inconsistent. Only the parts of the third embodiment that are different from the first embodiment are introduced here, and other structures can refer to the previous text.

In order to clearly explain the technical solution in this embodiment, up, down, front, back, left and right are defined as shown in Figure 16. It should be noted that, in the absence of specific instructions, up, down, front, back, left and right mentioned below all refer to the state of the connecting device when it is stationary as shown in Figure 16.

The connection assembly also includes a drive member 310. When the user needs to switch the connection assembly from a connected state to a hidden state, the user can pull out the drive member 310. At this time, the connection assembly moves downward under the action of gravity until the connection assembly is in the accommodating cavity 326.

Exemplarily, the base 320 includes a first connecting plate 321, a second connecting plate 322, a third connecting plate 323, and a fourth connecting plate 324 that are relatively spaced apart, and a fifth connecting plate 325 that connects the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, and the fourth connecting plate 324, and the fifth connecting plate 325 is opposite to the upper surface of the base 320. The third connecting plate 323 connects one end of the first connecting plate 321 and the second connecting plate 322, and the fourth connecting plate 324 connects the other end of the first connecting plate 321 and the second connecting plate 322. In the downward direction, the length of the first connecting plate 321 is less than the length of the second connecting plate 322, and the length of the third connecting plate 323 and the length of the fourth connecting plate 324 are substantially the same as the length of the second connecting plate 322. That is, the first connecting plate 321, the third connecting plate 323 and the fourth connecting plate 324 are substantially formed into a "concave" shape at the end. The inner walls of the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, the fourth connecting plate 324 and the fifth connecting plate 325 substantially form a semi-enclosed accommodation cavity 326 that opens upward, and the coupling assembly can be substantially accommodated in the accommodation cavity 326. A concave accommodation groove 327 is formed on the first connecting plate 321, and the accommodation groove 327 allows the driving member 310 to slide back and forth. Among them, the first connecting plate 321 corresponds to the first connecting inner wall, the second connecting plate 322 corresponds to the second connecting inner wall 331, the third connecting plate 323 corresponds to the third connecting inner wall 332, the fourth connecting plate 324 corresponds to the fourth connecting inner wall 333, and the fifth connecting plate 325 corresponds to the fifth connecting inner wall 334. Because the base 320 is directly formed on the first supporting plate of the trolley, that is, the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, the fourth connecting plate 324 and the fifth connecting plate 325 are directly formed by the first supporting plate.

The third connecting inner wall 332 and the fourth connecting inner wall 333 are connected or formed with corresponding long grooves, specifically the first groove 335 and the second groove 336, and the first groove 335 and the second groove 336 are both recessed inward. The two sides of the connecting seat are respectively matched with the first groove 335 and the second groove 336. For example, the two sides of the connecting seat form protrusions, specifically the first support end and the second support end 338. The two ends of the first groove 335 are the first end 341 and the second end 342. The first groove 335 basically extends in the up-down direction, and the first end 341 is located at the lower side relative to the second end 342. Similarly, the two ends of the second groove 336 are the third end and the fourth end. The second groove 336 also extends in the up-down direction, and the third end is located at the lower side relative to the fourth end. Due to the restriction and guidance of the first groove 335 and the second groove 336, the bottom of the connecting seat of the connecting assembly has a driving surface 345 and a supporting surface 346 that cooperate with the driving member 310. The driving member 310 applies force to the driving surface 345 to move the connecting assembly upward until the front end surface 349 of the driving member 310 abuts against the second connecting inner wall 331, and the connecting assembly stops moving. At this time, the supporting surface 346 of the connecting seat abuts against the upper top surface 348 of the driving member 310. Of course, when the driving member 310 is withdrawn, the connecting assembly loses the external force and moves downward under the action of gravity until the supporting surface 346 abuts against the fifth connecting inner wall 334.

When the connecting component is in the hidden state, the connecting piece has at least one upward surface, which is defined as the end surface 347. In the up-down direction, the distance between the end surface 347 and the fifth connecting plate 325 is the farthest, and the end surface 347 is lower than the surface of the first support plate, that is, lower than the storage surface of the first support plate. In this way, when the user places items on the first support plate, the connecting component will not prevent the user from placing items on the first connecting plate 321, and the items placed on the first connecting plate 321 will not damage the connecting component during transportation or handling. When the user needs to use the connecting piece, he only needs to switch the connecting component to the connection state.

The original state of the connection assembly is defined as the hidden state. At this time, the connection member is in the accommodating cavity 326. At this time, the first end 341 of the first groove 335 abuts against the first support end, and the third end of the second groove 336 abuts against the second support end 338. When the user wants to switch the connection assembly to the connected state, the user needs to insert the driving member 310 into the accommodating groove 327 until it abuts against the driving surface 345 of the connection seat, and continue to apply force to drive. The driving member 310 and the driving surface 345 are subjected to force to make the connection assembly move upward until the first support end abuts against the second end 342 of the first groove 335, the second support end 338 abuts against the fourth end of the second groove 336, and at the same time, the abutting surface 346 of the connection seat abuts against the upper top surface 348 of the driving member 310, and the front end surface 349 of the driving member 310 abuts against the second connection inner wall 331, thereby realizing the switching of the connection assembly from the hidden state to the connected state. When the user needs to switch the connection assembly from the connected state to the hidden state, he only needs to withdraw the driving member 310, the abutting surface 346 loses the abutment of the external force, and the connection assembly moves downward under the action of gravity until the first support end abuts against the first end 341 of the first groove 335, the second support end 338 abuts against the third end of the second groove 336, and at the same time, the abutting surface 346 of the connection seat abuts against the fifth connection inner wall 334, and the connection assembly is in the hidden state. At this time, the switching is completed.

As shown in Figures 21 to 26, the fourth embodiment of the connection assembly switching from the connection state to the hidden state relative to the base 420. It should be noted that the fourth embodiment is different from the first embodiment only in the switching method, and the specific connection structure between the connection assembly and the base 420 is inconsistent. Only the parts of the fourth embodiment that are different from the first embodiment are introduced here, and the other structures can refer to the above text.

In order to clearly explain the technical solution in this embodiment, the upper, lower, front, rear, left and right are defined as shown in Figure 21. It should be noted that, in the absence of specific instructions, the upper and lower, front and rear, left and right mentioned below all refer to the state of the connecting device when it is stationary as shown in Figure 21.

The connection assembly also includes a drive member 410. When the user needs to switch the connection assembly from a connected state to a hidden state, the user can pull out the drive member 410. At this time, the connection assembly flips downward under the action of gravity until the connection assembly is in the accommodating cavity 426.

Exemplarily, the base 420 includes a first connecting plate 421, a second connecting plate 422, a third connecting plate 423, and a fourth connecting plate 424 that are relatively spaced apart, and a fifth connecting plate 425 that connects the first connecting plate 421, the second connecting plate 422, the third connecting plate 423, and the fourth connecting plate 424, and the fifth connecting plate 425 is opposite to the upper surface of the base 420. The third connecting plate 423 connects one end of the first connecting plate 421 and the second connecting plate 422, and the fourth connecting plate 424 connects the other end of the first connecting plate 421 and the second connecting plate 422. In the up-down direction, the length of the first connecting plate 421 is less than the length of the second connecting plate 422, and the length of the third connecting plate 423 and the length of the fourth connecting plate 424 are substantially the same as the length of the second connecting plate 422. That is, the first connecting plate 421, the third connecting plate 423, and the fourth connecting plate 424 generally form a "concave" shape at the end. The inner walls of the first connecting plate 421, the second connecting plate 422, the third connecting plate 423, the fourth connecting plate 424 and the fifth connecting plate 425 basically form a semi-enclosed accommodating cavity 426 that is open upward, and the connecting assembly can be basically accommodated in the accommodating cavity 426. A recessed accommodating groove 427 is formed on the first connecting plate 421, and the accommodating groove 427 allows the driving member 410 to slide back and forth. Among them, the first connecting plate 421 corresponds to the first connecting inner wall 430, the second connecting plate 422 corresponds to the second connecting inner wall 431, the third connecting plate 423 corresponds to the third connecting inner wall 432, the fourth connecting plate 424 corresponds to the fourth connecting inner wall 433, and the fifth connecting plate 425 corresponds to the fifth connecting inner wall 434. Because the base 420 is directly formed on the first supporting plate of the trolley, that is to say, the first connecting plate 421, the second connecting plate 422, the third connecting plate 423, the fourth connecting plate 424, the fifth connecting plate 425, the fifth connecting plate 425, the fifth connecting inner wall 434. The connecting plate 424 and the fifth connecting plate 425 are directly formed by the first supporting plate.

The third connecting inner wall 432 and the fourth connecting inner wall 433 are connected or formed with corresponding support ends, specifically the first support end 437 and the second support end 438, and the first support end 437 and the second support end 438 are both protruded outward. The two sides of the connecting seat are respectively connected to the first support end 437 and the second support end 438. For example, the two sides of the connecting seat form the first groove and the second groove 436 adapted to the first support end 437 and the second support end 438, and the first support end 437 and the second support end 438 are cylindrical protrusions, and the first groove and the second groove 436 are cylindrical grooves. The first support end 437 abuts against the first groove, and the second support end 438 abuts against the second groove 436. The connecting assembly rotates around the axis of the first support end 437 or the second support end 438 to achieve state switching. Of course, it is also possible that the first support end 437 and the second support end 438 are arranged on the connecting seat, and the first groove and the second groove 436 are arranged on the third connecting inner wall 432 and the fourth connecting inner wall 433. The driving member 410 includes an upper top surface 441 , front end surfaces 446-442 , and an intermediate surface 443 connecting the upper top surface 441 and the front end surfaces 446-442 . The connecting seat has a driving surface 444 cooperating with the intermediate surface 443 and a supporting surface 445 cooperating with the upper top surface 441 .

When the connection component is in the hidden state, the connection piece has at least one upward surface, which is defined as the end surface 446. In the up-down direction, the end surface 446 is the farthest from the fifth connection plate 425, and the end surface 446 is lower than the surface of the first support plate, that is, lower than the storage surface of the first support plate. In this way, when the user places items on the first support plate, the connection component will not prevent the user from placing items on the first connection plate 421, and the items placed on the first connection plate 421 will not damage the connection component during transportation or handling. When the user needs to use the connection piece, he only needs to switch the connection component to the connection state.

The original state of the connection assembly is defined as the hidden state, at which time the connection member is in the accommodating cavity 426, at which time the first end of the first groove abuts against the first support end 437, and the third end of the second groove 436 abuts against the second support end 438. When the user wants to switch the connection assembly to the connected state, the user needs to insert the driving member 410 into the accommodating groove 427 until the middle surface 443 abuts against the driving surface 444 of the connection seat, and continue to apply force to drive the driving member 410. The driving surface 444 is subjected to force to cause the connection assembly to flip upward with the axis of the first support end 437 or the second support end 438 as the axis, until the abutting surface 445 of the connection seat abuts against the upper top surface 441 of the driving member 410, and the front end surface 446442 of the driving member 410 abuts against the second connection inner wall 431, thereby realizing the switching of the connection assembly from the hidden state to the connected state. When the user needs to switch the connection assembly from the connection state to the hidden state, the user only needs to withdraw the driving member 410, the abutting surface 445 loses the abutment of the external force, and the connection assembly is turned downward by gravity with the axis of the first support end 437 or the second support end 438 as the axis, until the abutting surface 445 of the connection seat abuts against the fifth connection inner wall 434, and the connection assembly is in the hidden state. At this time, the switching is completed.

As shown in Figures 27 to 30, there is a fifth embodiment of switching the connection assembly from the connection state to the hidden state relative to the base 510. It should be noted that the fifth embodiment is different from the first embodiment only in the switching method, and the specific connection structure between the connection assembly and the base 510 is inconsistent. Only the parts of the fifth embodiment that are different from the first embodiment are introduced here, and the other structures can refer to the above text.

In order to clearly explain the technical solution in this embodiment, the upper, lower, front, rear, left and right are defined as shown in Figure 27. It should be noted that, in the absence of specific instructions, the upper and lower, front and rear, left and right mentioned below all refer to the state of the connecting device when it is stationary as shown in Figure 27.

When the user needs to switch the connecting assembly from the connected state to the hidden state, the user can remove it from the accommodating cavity 516 .

Exemplarily, the base 510 includes a first connecting plate 511, a second connecting plate 512, a third connecting plate 513, and a fourth connecting plate 514 that are relatively spaced apart, and a fifth connecting plate 515 that connects the first connecting plate 511, the second connecting plate 512, the third connecting plate 513, and the fourth connecting plate 514, and the fifth connecting plate 515 is opposite to the upper surface of the base 510. The third connecting plate 513 connects one end of the first connecting plate 511 and the second connecting plate 512, and the fourth connecting plate 514 connects the other end of the first connecting plate 511 and the second connecting plate 512. In the up-down direction, the length of the first connecting plate 511 is less than the length of the second connecting plate 512, and the length of the third connecting plate 513 and the length of the fourth connecting plate 514 are substantially the same as the length of the second connecting plate 512. It can also be understood that the first connecting plate 511, the third connecting plate 513, and the fourth connecting plate 514 basically form a "concave" shape at the end. The inner walls of the first connecting plate 511, the second connecting plate 512, the third connecting plate 513, the fourth connecting plate 514 and the fifth connecting plate 515 are basically surrounded by a semi-enclosed accommodating chamber 516 that is open upward, and the connecting assembly can be basically accommodated in the accommodating chamber 516. The first connecting plate 511 has a supporting surface 517 on it. When the connecting assembly is in a connected state, the supporting surface 517 is in contact with the connecting seat, so that when the toolbox is installed on the connecting assembly, the supporting surface 517 can form a stable support for the connecting assembly. Of course, the first connecting plate 511 can also be composed of other structures, such as the upper surface of the first connecting plate 511 can be partially recessed downward to form a supporting surface 517, and the supporting surface 517 is set to be in contact with the connecting seat when the connecting assembly is in a connected state. Of course, it can also be that a portion of the fifth connecting plate 515 protrudes to form a supporting surface 517, and the supporting surface 517 is set to be in contact with the connecting seat when the connecting assembly is in a connected state.

The first connecting plate 511 corresponds to the first connecting inner wall 521, the second connecting plate 512 corresponds to the second connecting inner wall 522, the third connecting plate 513 corresponds to the third connecting inner wall 523, the fourth connecting plate 514 corresponds to the fourth connecting inner wall 524, and the fifth connecting plate 515 corresponds to the fifth connecting inner wall 525. Since the base 510 is directly formed on the first supporting plate of the trolley, that is, the first connecting plate 511, the second connecting plate 512, the third connecting plate 513, the fourth connecting plate 514 and the fifth connecting plate 515 are directly formed by the first supporting plate.

The third connecting inner wall 523 and the fourth connecting inner wall 524 are connected or formed with corresponding support ends, specifically the first support end, the second support end 527 and the third support end and the fourth support end 529. The first support end and the third support end are arranged on one side of the connecting seat, and the second support end 527 and the fourth support end 529 are arranged on one side of the connecting seat, and the above support ends all protrude outward. The two sides of the connecting seat are respectively connected to the first support end, the second support end 527 and the third support end and the fourth support end 529. Exemplarily, two groups of long strip-shaped grooves are formed on the two sides of the connecting seat, specifically the first groove 531, the second groove, the third groove 533 and the fourth groove. The depths of the above four grooves are from shallow to deep, and the first groove 531 and the second groove are basically opposite. The first groove 531 and the third groove 533 are basically corresponding, and the two are distributed on both sides of the connecting seat. Similarly, the third groove 533 and the fourth groove are basically corresponding, and the two are distributed on both sides of the connecting seat, that is, the first groove 531 and the third groove 533 are arranged on the same side of the connecting seat, and the second groove and the fourth groove are arranged on the same side of the connecting seat. The extension direction from shallow to deep of the first groove 531 and the third groove 533 is basically opposite, wherein the bottom of the first groove 531, the second groove, the third groove 533 and the fourth groove is the deepest depression. The connecting seat can be inserted into the base 510 through the first groove 531 and the second groove with the first support end and the second support end 527 as the guide. At this time, the connecting piece is in a connection position that can be connected to the toolbox, and the connecting seat is against the abutting surface 517. The connecting seat can also be inserted into the accommodating cavity 516 through the third groove 533 and the fourth groove with the third support end and the fourth support end 529 as the guide, and the connecting assembly is in a hidden state.

The original state of the connection assembly is defined as the hidden state, in which the connection piece is in the accommodating cavity 516, and the bottom of the third groove 533 abuts against the third support end, and the bottom of the fourth groove abuts against the fourth support end 529. When the user wants to switch the connection assembly to the connected state, the user needs to lift the connection assembly upward, so that the bottom of the third groove 533 will be separated from the third support end, and the bottom of the fourth groove will be separated from the fourth support end 529, until the third support end and the fourth support end 529 slide out of the third groove 533 and the fourth groove, and then flip the connection assembly to make the connection piece upward, and insert the first groove 531 and the second groove into the base 510 under the guidance of the first support end and the second support end 527, until the first support end and the second support end 527 abut against the bottom wall of the first groove 531 and the second groove, and then the connection seat abuts against the abutting surface 517, and the connection assembly is switched from the hidden state to the connected state.

When the connecting assembly is in a hidden state, the connecting seat has at least one upward surface, which is defined as an end surface 535. In the up-down direction, the distance between the end surface 535 and the fifth connecting plate 515 is the farthest, and the end surface 535 is lower than the surface of the first support plate, that is, lower than the storage surface of the first support plate. In this way, when the user places items on the first support plate, the connecting assembly will not prevent the user from placing items on the first connecting plate 511, and the items placed on the first connecting plate 511 will not damage the connecting assembly during transportation or handling. When the user needs to use the connector, he only needs to switch the connecting assembly to the connection state.

In the present application, when the connecting assembly is in a hidden state, at least two steps are required to connect to the part to be installed.

In the present application, some of the reference numerals in the second to fifth embodiments are the same as those in the first embodiment.

The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims (23)

A trolley, comprising a connecting device formed on or connected to the trolley, the connecting device being configured to mount a component to be mounted on the trolley, The connecting device comprises: a base formed on or connected to the trolley, the base being formed with a receiving cavity; A connecting assembly connected to the base, wherein the connecting assembly is configured to connect the part to be installed; The connection assembly comprises: A connecting piece, cooperating with the piece to be installed to connect the piece to be installed; The connecting assembly has at least a connected state and a hidden state relative to the base. When the connecting assembly is in the connected state, the connecting member is in a mating position capable of mating with the member to be installed. When the connecting assembly is in the hidden state, the connecting member is in a hidden position detached from the mating position. The trolley according to claim 1, wherein: The connecting assembly is switched from the connected state to the hidden state relative to the base by one or a combination of rotation, movement, and disassembly. The trolley according to claim 1, wherein: When the connecting assembly is in the hidden state, the connecting assembly is lower than the upper surface of the base, or lower than the storage surface of the trolley. The trolley according to claim 1, wherein: When the connecting assembly is in the connected state, the connecting assembly can be driven to move to the hidden state. The trolley according to claim 4, wherein: The coupling assembly further comprises a driving member, which can be inserted into the base so as to switch the coupling assembly from the hidden state to the connected state. The trolley according to claim 4, wherein: The connecting assembly also includes a connecting seat for mounting the connecting member, the connecting seat being pivotally connected to the base, the connecting seat having an end surface, and when the connecting assembly is in the connected state, the end surface is at least partially in contact with the base, and when the connecting assembly is in the hidden state, the end surface is lower than the upper surface of the base, or lower than the storage surface of the trolley. The trolley according to claim 4, wherein the connecting seat of the connecting member is connected to the base, and the connecting assembly is switched from the connected state to the hidden state, and the connecting assembly needs to be folded upward and then slid downward into the accommodating cavity, so that the connecting assembly is lower than the upper surface of the base, or lower than the storage surface of the trolley. The trolley according to claim 5, wherein the driving member further comprises a driving surface, and during the process of inserting the driving member into the base, the driving surface contacts the connecting assembly and drives the connecting assembly to slide upward until the connecting assembly switches from the hidden state to the connected state. The trolley according to claim 5, wherein the driving member further comprises a driving surface, and during the process of inserting the driving member into the base, the driving surface contacts the connecting assembly and drives the connecting assembly to fold upward until the connecting assembly switches from the hidden state to the connected state. The trolley according to claim 6, wherein: The connecting device also includes a first clamping portion and a second clamping portion that cooperate with the connecting piece. The first clamping portion and the second clamping portion are relatively arranged on both sides of the connecting seat. When the connecting assembly is in a connected state, the connecting seat is clamped with the first clamping portion and the second clamping portion, and the connecting piece and the base remain relatively fixed. The trolley according to claim 6, wherein: The connecting member includes a buckle configured to cooperate with the member to be installed, and the buckle is higher than the upper surface of the base in the up-down direction. The trolley according to claim 6, wherein: The connecting assembly also includes a connecting seat for mounting the connecting member, the connecting seat being pivotally connected to the base, the connecting seat having an end face, when the connecting assembly is in the connected state, the end face is at least partially in contact with the base, when the connecting assembly is in the hidden state, the end face is substantially flush with the upper surface of the base, or the end face is substantially flush with the storage surface of the trolley. The trolley according to claim 1, wherein: When the connecting assembly is in the hidden state, the connecting assembly is substantially flush with the upper surface of the base, or the connecting assembly is substantially flush with the storage surface of the trolley. The trolley according to claim 1, wherein: When the connecting assembly is in a hidden state, the parts to be installed can be directly stacked on the connecting parts. The trolley according to claim 1, wherein: When the connecting assembly is in a hidden state, the connecting member is configured to require at least two steps to connect with the member to be installed. A tool box, comprising a connecting device formed on or connected to the tool box, wherein the connecting device is configured to install a component to be installed on the tool box, The connecting device comprises: A base, formed on or connected to the tool box, the base forming a receiving cavity; A connecting assembly connected to the base, wherein the connecting assembly is configured to connect the part to be installed; The connection assembly comprises: A connecting piece, cooperating with the piece to be installed to connect the piece to be installed; The connecting assembly has at least a connected state and a hidden state relative to the base. When the connecting assembly is in the connected state, the connecting member is in a mating position capable of mating with the member to be installed. When the connecting assembly is in the hidden state, the connecting member is in a hidden position detached from the mating position. A tool, comprising a connection device formed on or connected to the tool, the connection device being configured to mount a part to be mounted on the tool box, The connecting device comprises: A base formed on or connected to the tool, the base forming a receiving cavity; A connecting assembly connected to the base, wherein the connecting assembly is configured to connect the part to be installed; The connection assembly comprises: A connecting piece, cooperating with the piece to be installed to connect the piece to be installed; The connecting assembly has at least a connected state and a hidden state relative to the base. When the connecting assembly is in the connected state, the connecting member is in a mating position capable of mating with the member to be installed. When the connecting assembly is in the hidden state, the connecting member is in a hidden position detached from the mating position. A connecting device capable of being mounted on a tool or a tool box, wherein the connecting device is configured to mount a component to be mounted on the tool or the tool box. The connecting device comprises: a base formed or connected to the tool or tool box, the base forming a receiving cavity; A connecting assembly connected to the base, wherein the connecting assembly is configured to connect the part to be installed; The connection assembly comprises: A connecting piece, cooperating with the piece to be installed to connect the piece to be installed; The connecting assembly has at least a connected state and a hidden state relative to the base. When the connecting assembly is in the connected state, the connecting member is in a mating position capable of mating with the member to be installed. When the connecting assembly is in the hidden state, the connecting member is in a hidden position detached from the mating position. The connection device according to claim 18, wherein: The connecting assembly is switched from the connected state to the hidden state relative to the base by one or a combination of rotation, movement, and disassembly. The connection device according to claim 18, wherein: When the connecting assembly is in the hidden state, the connecting assembly is lower than the upper surface of the base, or lower than the storage surface of the tool or tool box. The connection device according to claim 18, wherein: When the connecting assembly is in the connected state, the connecting assembly can be driven to move to the hidden state. The connection device according to claim 21, wherein The coupling assembly further comprises a driving member, which can be inserted into the base so as to switch the coupling assembly from the hidden state to the connected state. A connecting device capable of being mounted on a tool or a tool box, wherein the connecting device is configured to mount a component to be mounted on the tool or the tool box. The connecting device comprises: a base forming or connected to said tool or tool box; A connecting assembly connected to the base, wherein the connecting assembly is configured to connect the part to be installed; The connection assembly comprises: A connecting piece, cooperating with the piece to be installed to connect the piece to be installed; The connecting assembly has at least a hidden state relative to the base. When the connecting assembly is in the hidden state, the connecting member is lower than the upper surface of the base, or lower than the storage surface of the tool or tool box.