CN111257799A - Detection device - Google Patents

Abstract

The invention provides a detection device which is used for detecting the connection state of a quick connector and a male joint. The detection device includes an actuation element, a movable element, and a detection circuit. The movable element has an insertion arm extending in a horizontal direction and adapted to be inserted into a gap between the quick connector and the male fitting. The detection circuit includes an indication unit. The movable element is in an initial position when the actuating element is in the inactive position, and the movable element has a tendency to move away from the initial position in a vertical direction when the actuating element is moved to the active position. The detection circuit is configured to be in different states in response to a change in the position of the actuating element and the movable element, such that the indication unit provides different indication signals in case of a correct connection and an incorrect connection of the connector and the male fitting when the actuating element is moved from the inoperative position to the operative position. The detection device has good universality.

Description

Detection device

technical field

The present invention generally relates to the technical field of male connector connection state detection devices, and in particular to a detection device for detecting the connection state between a quick connector and a male connector.

Background technique

Quick connectors are usually used for connection between pipes. For example, quick connectors can be applied to liquid and/or steam pipelines in vehicles, and the reliability of the connection between these quick connectors and pipelines is of great significance to the safety of the fluid system and the entire vehicle.

Existing quick connectors typically include a connector body and a latch. When connecting the male joint of the pipeline end to the quick connector, firstly, the connector body and the male joint need to be axially inserted in place so that the lock catch locks the male joint. However, during the connection operation, there may be situations where the quick connector and the male connector are not properly connected, resulting in the fact that the lock cannot properly lock the male connector, the male connector is easily loosened under the action of external force, and it is difficult for the installer to observe the quick connector from the outside. Whether the connector and the male connector are connected correctly, this will cause a huge safety hazard.

Chinese invention patent CN109099826A discloses a quick-plug connector installation state inspection tool, which judges the quick-plug connector by judging whether the overall outline of the quick-connect connector after installation is different from the contour line of the quick-connect connector in the correct installation state. The installation status is correct or not. The inspection tool needs to be designed strictly according to the contour of the push-in connector in the correct installation state. However, the structures and shapes of the quick connectors currently on the market are different, the inspection tool cannot meet the detection requirements of different quick connectors at the same time, the versatility is poor, and the manufacturing and use costs are high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned problems in the prior art, and to provide a detection device with good versatility for detecting the connection state between the quick connector and the male connector.

The present invention provides a detection device. The detection device is suitable for detecting the connection state of the quick connector and the male connector, the male connector has a shoulder extending along the radial direction thereof, and the quick connector is connected to the quick connector when the male connector is connected to the quick connector. There is a gap between the end face and the shoulder of the male connector. The detection device comprises: a housing; an actuating element connected to the housing and adapted to move between a non-operating position and an operating position; a movable element, the movable element being movable is arranged in the housing in a manner and has an insertion arm protruding from the housing, the insertion arm extending in a first direction and adapted to be inserted into the gap; a first elastic element, the movable The element is connected with the actuating element through the first elastic element, so that: when the actuating element is in the inoperative position, the movable element is in an initial position, and when the actuating element is in the non-operating position When the working position moves to the working position, the movable element has a tendency to move away from the initial position along a second direction under the action of the elastic force of the first elastic element, wherein the first direction is different from the first direction. the second directions are not parallel; and a detection circuit mounted to the housing and including an indicating unit, the detection circuit configured to be in a different state in response to a positional change of the movable element such that: When the actuating element moves from the non-working position to the working position, the indicating unit respectively provides different indicating signals under the condition that the quick connector and the male connector are properly connected and not properly connected.

According to the above technical idea, the present invention may further include any one or more of the following optional forms.

In some alternative forms, the insertion arm of the movable element is adapted to respond to the movement of the first elastic element when the insertion arm is inserted into the gap and the actuating element is moved to the operative position The elastic force exerts a force on the end face of the quick connector or the shoulder of the male connector, and the elastic coefficient of the first elastic element is set so that: the force is greater than or equal to that which is not correctly connected. The force to separate the quick connector from the male connector is less than the force to separate the properly connected quick connector from the male connector.

In some optional forms, the first direction is perpendicular to the second direction.

In some optional forms, the detection circuit further comprises a first switch and a second switch, the first switch, the second switch and the indicating unit being connected in series with each other, wherein the actuating element is arranged to be in The first switch is switched from an open state to a closed state when moving from the non-operating position to the operating position; the movable element is arranged to cause all the switches when moving away from the initial position in the second direction The second switch is switched from a closed state to an open state.

In some alternative forms, the housing includes a first housing portion to which the actuating element is pivotably connected.

In some alternative forms, the actuating element includes a first section and a second section flanking its pivot point, the first section being connected to the movable element through the first elastic element connection, a second elastic element for resetting the actuating element is provided between the second section and the first housing part.

In some alternative forms, the first switch is provided on the first housing part and has switch contacts, and the actuating element is arranged such that when the actuating element is pivoted to the operative position, The second section of the actuating element abuts the switch contacts of the first switch, so that the first switch is in a closed state; when the actuating element is pivoted to the inactive position, all The second section of the actuating element is remote from the switch contacts of the first switch such that the first switch is in an open state.

In some alternative forms, the housing includes a second housing portion connected to the first housing portion, and the movable element is disposed within the second housing portion and adapted to be in the second housing portion. The second housing portion moves in the second direction.

In some alternative forms, the second switch is provided on the second housing portion and has switch contacts, and the movable element is arranged such that when the movable element is in the initial position, the The movable element abuts on the switch contact of the second switch, so that the second switch is in a closed state; when the movable element moves away from the initial position along the second direction, the movable element is in contact with the second switch. The switch contacts of the second switch come out of contact, so that the second switch is in an off state.

In some alternative forms, the second switch is provided at a side wall of the second housing part, and the end of the movable element opposite the second switch has a recess and an abutment, so The concave portion and the abutting portion are arranged along the second direction; the movable element is arranged such that: when the movable element is in the initial position, the abutting portion of the movable element abuts Connect the switch contact of the second switch, so that the second switch is in a closed state; when the movable element moves away from the initial position along the second direction, the switch contact of the second switch moves along the The abutting portion of the movable element fits into the recess, so that the second switch is in an off state.

In some optional forms, the switch contacts of the second switch have guides for guiding the movable element back to the initial position.

In some alternative forms, the movable element is biased in the initial position by the first elastic element.

In some optional forms, the movable element is provided with a slot, and the second housing part is provided with a corresponding stop, wherein the slot of the movable element is adapted to cooperate with the first The stop parts of the two housing parts are engaged to maintain the movable element in the initial position.

In some alternative forms, the movable element has two insertion arms which, when inserted into the gap, are located on either side of the male joint in the radial direction, respectively.

In some optional forms, the indicating unit is an indicator light.

The detection device according to the present invention is easy to operate, and can provide different indication signals when the quick connector and the male connector are correctly connected and incorrectly connected, so that the testing personnel can quickly and intuitively judge the connection state of the quick connector and the male connector. In addition, the detection device of the present invention can be applied to quick connectors of various structures and shapes, and has good versatility.

Description of drawings

Other features and advantages of the present invention will be better understood from the following alternative embodiments described in detail in conjunction with the accompanying drawings, in which like numerals identify the same or similar parts, wherein:

FIG. 1 is a perspective view when the detection device according to the present invention is used to detect the connection state of the quick connector;

2A and 2B are schematic diagrams of male connectors suitable for the detection device according to the present invention;

3 is a perspective view of a detection device according to the present invention;

4 is an exploded view of the detection device according to the present invention;

5 is a side view of the detection device according to the present invention;

6 is a cross-sectional view of the detection device according to the present invention taken along line A-A in FIG. 5;

FIG. 7 is a perspective view of a movable part of a detection device according to the present invention; and

8 is a schematic circuit diagram of a detection circuit of the detection device according to the present invention.

Detailed ways

The implementation and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. In the description, the structural positions of various components, such as directions such as upper, lower, top, and bottom, are not absolute, but relative. These directional representations are appropriate when the various components are arranged as shown in the figures, but when the positions of the various components in the figures are changed, the directional representations also change accordingly.

In the present invention, terms such as "connected" and "connected" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integral connection; "connection" may be a direct connection connection, or indirect connection through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

FIG. 1 shows a perspective view when the detection device 100 according to the present invention is used for detecting the connection state of the quick connector 102 . 2A and 2B illustrate examples of male connectors for which detection device 100 is suitable.

1 to 2B, the detection device 100 can be used to detect whether the quick connector 102 and the male connectors 104a, 104b are properly connected.

The quick connector 102 may include: a connector body 106, into which the male connectors 104a, _104b can be inserted; The vertical direction moves to the locked position to lock the male connectors 104a, 104b inserted in place. Here, the latch 107 of the quick connector 102 may have different structures according to the male connectors 104a, 104b.

Figures 2A and 2B show male connectors 104a, 104b, respectively, suitable for connection with the quick connector 102. The respective ends 105a , 105b of the male connectors 104a , 104b may be inserted into the connector body 106 . The male connector 104a has a circumferential annular groove 108 that can engage with the engagement structure of a corresponding latch 107, thereby locking the male connector 104a. The male connector 104b has a circumferential annular flange 110 that can be engaged with the engagement structure of the corresponding latch 107 so that the male connector 104b is locked. The male joints 104a, 104b (hereinafter collectively referred to as male joints 104) each have shoulders 112a, 112b (hereinafter collectively referred to as shoulders 112) extending in the radial direction thereof. When the male connector 104 is connected to the quick connector 102 , there is a gap between the end face 114 of the quick connector 102 and the shoulder 112 of the male connector 104 . Unless otherwise specified, the gap between the quick connector and the male connector in the present invention refers to the gap between the end face of the quick connector and the shoulder of the male connector when the quick connector is connected with the male connector.

The present invention only schematically gives examples of quick connectors and male connectors. Those skilled in the art can understand that the detection device of the present invention can be used for quick connectors and male connectors of various structures, as long as they are connected in the male connector. What is necessary is just to have a clearance gap in the insertion direction of a connector.

3, 6 and 8, the detection device 100 may include: a housing 116; an actuating element 118 connected to the housing 116 and movable between a non-operating position and an operating position; movable Element 120, the movable element 120 is movably arranged in the housing 116 and has an insertion arm 122 protruding from the housing 116, the insertion arm 122 of the movable element 120 extends in the _first direction D1 and can be inserted into the In the gap between the quick connector 102 and the male connector 104; the first elastic element 124, the movable element 120 is connected with the actuating element 118 through the first elastic element 124; and the detection circuit 126, the detection circuit 126 is mounted to the housing 116 And includes a first switch 128, a second switch 130 and an indicating unit 132 connected in series with each other. When the actuating element 118 is in the inactive position, the movable element 120 is in the initial position, and when the actuating element 118 moves from the inactive position to the operating position, the movable element 120 has an edge along the elastic force of the first elastic element 124. The tendency of the _second direction D2 to move away from the initial position. The actuating element 118 is arranged to switch the first switch 128 from the open state to the closed state upon movement from the inoperative position to the operative position. The movable element 120 is arranged to switch the second switch 130 from the closed state to the open state when it leaves the initial position in the _second direction D2. Wherein, the _first direction D1 and the _second direction D2 are not parallel. In the illustrated embodiment, the _first direction D1 is the horizontal direction, and the _second direction D2 is the vertical direction.

Specifically, as shown in FIGS. 3 and 4 , the housing 116 may include a first housing portion 134 and a second housing portion 136 . The first housing portion 134 and the second housing portion 136 may be connected to each other by bolts 138 and studs 140 . The first housing portion 134 is L-shaped and includes a horizontal section 142 and a vertical section 144 . A vertical through hole 146 is provided in the vertical section 144 of the first housing part 134 . The second housing portion 136 is hollow and extends substantially in the vertical direction. The second housing portion 136 includes a horizontally extending insert 148 that may provide a point of support against the shoulder 112 of the male connector 104 when the detection device 100 is in use. The thickness of the insert portion 148 of the second housing portion 136 may be substantially equal to or slightly less than the gap between the quick connector 102 and the male connector 104 connected to each other.

As shown in FIGS. 3-6 , the actuating element 118 may be pivotably connected to the first housing portion 134 and pivotable between an inoperative position and an operative position. In FIGS. 1 , 3 , 5 and 6 the actuating element 118 is in an inoperative position. The actuating element 118 can be pivoted in the direction D _p into a working position (not shown). Correspondingly, the horizontal section 142 of the first housing part 134 may be provided with a stop surface 156 such that the actuating element 118 may pivot into abutment with the stop surface 156 of the first housing part 134 to remain in the working position . The actuating element 118 includes a first section 150 and a second section 152 flanking its pivot point. The first section 150 of the actuating element 118 is connected to the movable element 120 via the first elastic element 124 . A second elastic element 154 for resetting the actuating element 118 is arranged between the second section 152 of the actuating element 118 and the horizontal section 142 of the first housing part 134 . The second elastic element 154 may be a coil spring.

As shown in FIGS. 4 to 7 , the movable element 120 is disposed within the second housing portion 136 and is movable in the vertical direction within the second housing portion 136 . The movable element 120 includes a main body 121 and two insertion arms 122 , both of which extend from the main body 121 to the outside of the first side wall 157 of the second housing part 136 in a horizontal direction. The first side wall 157 of the second housing part 136 is also provided with an opening 158 so that the movable element 120 can move in the vertical direction within the range of the opening 158 . The insertion arm 122 of the movable element 120 can be inserted into the gap between the quick connector 102 and the male connector 104 connected to each other. The thickness of the insertion arm 122 of the movable element 120 may be substantially equal to or slightly smaller than the gap between the quick connector 102 and the male connector 104 connected to each other. When the movable element 120 is in the initial position, the insertion arm 122 of the movable element 120 is substantially flush with the insertion portion 148 of the second housing portion 136 . The two insertion arms 122 of the movable element 120 are respectively located on both sides in the radial direction of the male joint 104 when inserted into the gap between the quick connector 102 and the male joint 104 connected to each other.

As shown in FIGS. 4 and 6 , the first elastic element 124 is disposed within the second housing portion 136 . The first elastic element 124 may be a coil spring. The first end 160 of the first elastic member 124 is connected to the main body 121 of the movable member 120 through a connecting pin 170a. The second end 162 of the first elastic element 124, the sleeve 164, the first connecting piece 166, the second connecting piece 168 and the first section 150 of the actuating element 118 are connected in sequence by connecting pins 170b, 170c, 170d, 170e. The sleeve 164 is disposed in the vertical through hole 146 in the vertical section 144 of the first housing part 134, the outer diameter of the sleeve 164 may be only slightly smaller than the inner diameter of the vertical through hole 146 of the first housing part 134 , thereby facilitating the smooth movement of the sleeve 164 in the vertical direction in the vertical through hole 146 of the first housing portion 134 . A first link 166 is provided in the sleeve 164 , and both ends of the second link 168 are pivotably connected to the first link 166 and the first section 150 of the actuating element 118 , respectively.

When the actuating element 118 is in the inoperative position, the first elastic element 124 may be in a compressed state, thereby biasing the movable element 120 in the initial position. The bottom of the main body 121 of the movable element 120 may be provided with a slot 172 that opens downward in a vertical direction. Accordingly, the bottom portion of the second housing portion 136 is provided with a limiting portion 174 . In the illustrated embodiment, the stop 174 is a horizontal stop pin that traverses the second housing portion 136 . The slot 172 of the movable element 120 can engage with the stop pin 174 of the second housing portion 136, thereby maintaining the movable element 120 in the initial position. Optionally, the limiting portion 174 may also be a limiting protrusion provided on the second housing portion 136 . It can be understood that, when the actuating element 118 is in the non-working position, the first elastic element 124 can also be in an original state or a stretched state, and the movable element 120 can be biased to the initial position by its own gravity or a counterweight.

1 , in the case where the insertion arm 122 of the movable element 120 of the detection device 100 is inserted into the gap between the quick connector 102 and the male connector 104 connected to each other, when the second section 152 of the actuating element 118 is pressed When the actuating element 118 is pivoted to the working position along the direction D _p , the actuating element 118 will drive the second connecting piece 168 to pivotally move, and further drive the first connecting piece 166 , the sleeve 164 and the first elastic element 124 . The second end 162 moves upward in the vertical direction. At this time, since the insertion arm 122 of the movable element 120 is stopped by the end surface 114 of the quick connector 102, the movable element 120 will remain in the initial position, and the first elastic element 124 will be stretched. The movable element 120 has a tendency to move upward in the vertical direction away from the initial position under the action of the pulling force of the first elastic element 124 , and exert a force on the end face 114 of the quick connector 102 . The elastic coefficient of the first elastic element 124 can be set such that the aforementioned force is greater than or equal to the force that separates the incorrectly connected quick connector 102 from the male connector 104 and is smaller than the force that separates the correctly connected quick connector 102 from the male connector 104 strength. In this way, if the quick connector 102 and the male connector 104 are not properly connected, the quick connector 102 will be separated from the male connector 104 under the force of the movable element 120, and the insertion arm 122 of the movable element 120 is no longer affected by the quick connection. The stop of the end face 114 of the connector 102 enables the movable element 120 to leave the initial position in the vertical direction; if the quick connector 102 is correctly connected with the male connector 104, the quick connector 102 continues to maintain the connection with the male connector 104, and the The moving element 120 remains in the initial position. After that, if the pressing force on the second section 152 of the actuating element 118 is removed, the actuating element 118 will return to the non-working position under the force of the second elastic element 154 and simultaneously drive the first elastic element 124 to move downward , and then make the movable element 120 return to the initial position or continue to maintain the initial position.

When the detection device 100 is used in the manner in FIG. 1, the detection device 100 is horizontally opposite the quick connector 102, and when the movable element 120 has a tendency to move away from the initial position, the insertion arm 122 of the movable element 120 The end face 114 of the quick connector 102 exerts a force, while the insert 148 of the second housing portion 136 exerts a force on the shoulder 112 of the male connector 104 . It can be understood that the detection device 100 can also be used upside down. In this case, the detection device 100 and the male connector 104 are opposite to each other in the horizontal direction. When the movable element 120 has a tendency to move away from the initial position, the insertion of the movable element 120 The arm 122 applies a force to the shoulder 112 of the male connector 104 , while the insert 148 of the second housing portion 136 applies a force to the end face 114 of the quick connector 102 . In the illustrated embodiment, the insertion arm 122 of the movable element 120 extends in the horizontal direction, the movable element 120 is arranged in the vertical second housing part 136 and is movable in the vertical direction, and the movable element 120 is movable in the vertical direction. The extending direction of the inserting arm 122 is perpendicular to the moving direction of the movable element 120, so that the inserting arm 122 of the moving element 120 can interact with the quick connector when the movable element 120 is inserted between the quick connector 102 and the male connector 104 connected to each other. The force is applied by the end face 114 of the 102 or the shoulder 112 of the male connector 104 . It can be understood that the extension direction of the insertion arm 122 of the movable element 120 can also be at other angles with the moving direction of the movable element 120, as long as the two are not parallel so that the movable element 120 can move against the end face of the quick connector 102. 114 or the shoulder 112 of the male connector 104 applies the force.

As shown in FIGS. 4 and 6 to 8 , the detection circuit 126 may include a first switch 128 , a second switch 130 , an indicating unit 132 , a resistance element 176 and a power source 178 connected in series with each other.

The first switch 128 is disposed at the bottom of the horizontal section 142 of the first housing portion 134 . The first switch 128 has switch contacts 180 . When the actuating element 118 is in the inactive position, the second section 152 of the actuating element 118 is away from the switch contacts 180 of the first switch 128, so that the first switch 128 is in an open state. When the actuating element 118 is pivoted to the working position, the second section 152 of the actuating element 118 abuts against the switch contact 180 pressing the first switch 128, so that the first switch 128 is in a closed state. Alternatively, the first switch 128 may be a micro switch, a proximity switch or other suitable switch.

The second switch 130 is provided at the second side wall 181 of the second housing portion 136 . The second switch 130 has switch contacts 182 . An end portion of the movable element 120 opposite to the second switch 130 is provided with a recessed portion 184 and an abutting portion 186 . In the illustrated embodiment, the abutment portion 186 of the movable element 120 is a part of the end surface of the movable element 120 . Alternatively, the abutment portion 186 may also be a protrusion. The concave portion 184 and the abutting portion 186 of the movable element 120 are disposed along the vertical direction, and the abutting portion 186 is located above the concave portion 184 . When the movable element 120 is in the initial position, the abutting portion 186 of the movable element 120 abuts against and presses the switch contact 182 of the second switch 130 , so that the second switch 130 is in a closed state; the movable element 120 moves upward in the vertical direction In the initial position, the switch contact 182 of the second switch 130 falls into the recess 184 along the abutting portion 186 of the movable element 120 , so that the second switch 130 is in an off state. The switch contact 182 of the second switch 130 has a guide portion 188 for guiding the movable element 120 to return to the initial position. In the illustrated embodiment, the guide portion 188 is in the form of an inclined surface to guide the movable element 120 to smoothly return to the initial position. Optionally, the second switch 130 may be a micro switch, a proximity switch or other suitable switches.

In the illustrated embodiment, the indicator unit 132 is an LED indicator light and is provided at the end of the horizontal section 142 of the first housing part 134 close to the second housing part 136 . It can be understood that the indicating unit 132 can also be other types of indicator lights, vibration components, buzzers and the like. The indicating unit 132 may also be provided in other suitable positions.

In the illustrated embodiment, the power source 178 is a coin cell battery and is provided at the end of the horizontal section 142 of the first housing portion 134 remote from the second housing portion 136 . It can be understood that the power source 178 can also be other types of primary batteries, rechargeable batteries, wired power sources, and the like. The following describes the use of the detection device 100 according to the present invention with reference to FIGS. 1 to 8 .

When the detection device 100 is not in use, the actuating element 118 is in a non-operating position, the first switch 128 is in an open state, the movable element 120 is in an initial position, and the second switch 130 is in a closed state. Therefore, the detection circuit 126 is in an off state, and the LED indicator 132 does not light up.

When the detection device 100 is used to detect whether the quick connector 102 and the male connector 104 connected to each other are properly connected, the insertion portion 148 of the second housing part 136 and the insertion arm 122 of the movable element 120 are first inserted into the quick connector 102 In the gap with the male connector 104, the second section 152 of the actuating element 118 is then pressed to pivot the actuating element 118 into the working position. At this time, as mentioned above, the first switch 128 will be closed, and at the same time, the movable element 120 will have a tendency to move upward in the vertical direction, and exert a force on the end face 114 of the quick connector 102: if the quick connector 102 is connected to the The male connector 104 is correctly connected, the movable element 120 is kept in the initial position, the second switch 130 is still in the closed state, the detection circuit 126 is in the connected state, and the LED indicator 132 is on; if the quick connector 102 and the male connector 104 are not connected The correct connection will be separated under the force of the movable element 120, and the movable element 120 will move upward in the vertical direction, and the switch contact 182 of the second switch 130 will fall into the recess 184 of the movable element 120, so that the The second switch 130 is disconnected, the detection circuit 126 is in an open state, and the LED indicator 132 is still off.

Therefore, the inspector can intuitively judge the connection state between the quick connector and the male connector by operating the inspection device 100 and observing whether the LED indicator 132 is on. It should be understood that the embodiments shown in FIG. 1 to FIG. 8 only show the shape, size and arrangement of each optional component of the detection device according to the present invention, but it is only for illustration rather than limitation, without departing from the present invention Other shapes, sizes and arrangements may also be adopted under the circumstances of the concept and scope.

For example, the detection circuit 126 may also have other configurations, so long as the detection circuit 126 can be in a different state in response to a change in the position of the movable element 120, such that when the actuating element 118 is moved from the non-operating position to the operating position, the indicating unit 132 is in Different indication signals are provided when the quick connector 102 and the male connector 104 are correctly connected and incorrectly connected, so that the inspector can judge the connection state of the quick connector 102 and the male connector 104 according to the indicator signals.

It should be noted that the indication signal provided by the indication unit 132 here may refer to the state of the indication unit 132. Taking the LED indicator light as an example, the LED indicator light on and off belong to two different indication signals. In addition, the indication signal can also refer to the switching of the indication unit state. For example, the switching of the LED indicator light from on to off is one kind of indicator signal, and the switching of the LED indicator from off to on is another kind of indicator signal.

Alternatively, the detection circuit 126 may not include the first switch 128 and only include the second switch 130 . When the movable element 120 is in the initial position, the switch contact 182 of the second switch 130 abuts on the abutting portion 186 of the movable element 120, so that the second switch 130 is in a closed state, at this time, the LED indicator 132 lights up . In this way, when the actuating element 118 is pivoted to the working position, if the quick connector 102 is correctly connected with the male connector 104, the movable element 120 is kept in the initial position, the second switch 130 is kept closed, and the detection circuit 126 is kept in the ON state , the LED indicator 132 remains on; if the quick connector 102 and the male connector 104 are not properly connected, the movable element 120 leaves the initial position, and the switch contact 182 of the second switch 130 enters the recess 184 so that the second switch 130 is disconnected, The detection circuit 126 is in an open state, and the LED indicator 132 changes from on to off, indicating that the quick connector 102 and the male connector 104 are not properly connected.

Optionally, the detection circuit 126 may not include the first switch 128, but only the second switch 130; and the end of the movable element 120 opposite to the second switch 130 is still provided with a recess 184 and abutting along the vertical direction The part 186 differs from the illustrated embodiment in that the contact part 186 is located below the recessed part 184 . In this way, when the movable element 120 is in the initial position, the switch contact 182 of the second switch 130 extends into the recess 184, so that the second switch 130 is in an off state; when the movable element 120 moves up from the initial position in the vertical direction, the first The switch contacts 182 of the second switches 130 are abutted and pressed by the abutting portions 186 of the movable element 120 , so that the second switches 130 are in a closed state. In this way, when the actuating element 118 is pivoted to the working position, if the quick connector 102 is correctly connected with the male connector 104, the movable element 120 is kept in the initial position, the second switch 130 is kept open, and the detection circuit 126 is kept in the open state , the LED indicator 132 is off; if the quick connector 102 and the male connector 104 are not properly connected, the movable element 120 leaves the initial position, the second switch 130 is closed, the detection circuit 126 is on, and the LED indicator 132 is on.

Optionally, the detection circuit 126 may include both the first switch 128 and the second switch 130 . However, the first switch 128 may be an independent switch not controlled by the actuating element 118 . The first switch 128 can be manually opened when the detection device 100 is not in use, and the first switch 128 can be manually closed when the detection device 100 is in use. In this way, when the detection device 100 is used for detection, the first switch 128 can be closed first. Since the movable element 120 is kept at the initial position, the second switch 130 is also closed, the detection circuit 126 is turned on, and the LED The indicator light 132 is illuminated; then the actuating element 118 is pivoted to the working position, at this time, if the quick connector 102 is correctly connected with the male connector 104, the movable element 120 remains in the initial position, and the detection circuit 126 remains in the ON state , the LED indicator 132 remains on; if the quick connector 102 and the male connector 104 are not properly connected, the movable element 120 leaves the initial position, the second switch 130 is disconnected, the detection circuit 126 is in the disconnected state, and the LED indicator 132 is not On; after the detection, the first switch 128 can be manually turned off.

The technical content and technical features of the present invention have been disclosed above. However, it can be understood that under the creative idea of the present invention, those skilled in the art can make various changes and improvements to the above disclosed idea, but all belong to the present invention. protected range. The descriptions of the above embodiments are illustrative rather than restrictive, and the protection scope of the present invention is determined by the claims.

Claims (10)

1. A detection device suitable for detecting the connection state of a quick connector and a male connector, the male connector having a shoulder extending in its radial direction, the male connector being connected with the quick connector When there is a gap between the end face of the quick connector and the shoulder of the male connector, the detection device includes: a housing; an actuating element, the actuating element is connected to the housing and adapted to move between a non-operating position and an operating position; a movable element movably disposed in the housing and having an insertion arm extending from the housing, the insertion The arm extends in a first direction and is adapted to be inserted into the gap; a first elastic element, the movable element is connected with the actuating element through the first elastic element, so that: when the actuating element is in the When the non-operating position is in the initial position, the movable element is in an elastic force of the first elastic element when the actuating element moves from the non-operating position to the operating position. has a tendency to move away from the initial position in a second direction under the action, wherein the first direction is not parallel to the second direction; and a detection circuit, the detection circuit is mounted to the housing and includes an indicating unit, The detection circuit is configured to be in different states in response to a change in the position of the movable element, such that: when the actuating element moves from the inoperative position to the operative position, the indicating unit is in the The quick connector and the male connector provide different indication signals when the connection is correct and when the male connector is not connected correctly. 2. The detection device of claim 1, wherein the insertion arm of the movable element is adapted when the insertion arm is inserted into the gap and the actuating element is moved to the working position A force is applied to the end face of the quick connector or the shoulder of the male connector in response to the action of the elastic force of the first elastic element, the elastic coefficient of the first elastic element being set such that: the The force is greater than or equal to the force separating the improperly connected quick connector from the male connector and less than the force separating the properly connected quick connector from the male connector. 3. The detection device according to claim 1, wherein the first direction is perpendicular to the second direction. 4. The detection device according to any one of claims 1 to 3, wherein the detection circuit further comprises a first switch and a second switch, the first switch, the second switch and the the indicating units are connected in series with each other, wherein the actuating element is arranged to switch the first switch from an open state to a closed state when moving from the inoperative position to the operative position; the movable element is arranged to so as to switch the second switch from a closed state to an open state when moving away from the initial position in the second direction. 5. The detection device of claim 4, wherein the housing comprises a first housing part to which the actuating element is pivotably connected, Preferably, the actuating element comprises a first section and a second section on both sides of its pivot point, the first section is connected to the movable element through the first elastic element, the A second elastic element for resetting the actuating element is arranged between the second section and the first housing part, Preferably, the first switch is provided in the first housing part and has switch contacts, and the actuating element is arranged such that when the actuating element is pivoted into the operating position, the actuating element The second section of the element abuts the switch contacts of the first switch, so that the first switch is in a closed state; when the actuating element is pivoted to the inoperative position, the actuating element The second section of the first switch is away from the switch contacts of the first switch, so that the first switch is in an off state. 6. The detection device according to claim 5, wherein the housing comprises a second housing part connected to the first housing part, and the movable element is disposed in the second housing portion and adapted to move in said second direction within said second housing portion, Preferably, the second switch is provided on the second housing part and has switch contacts, and the movable element is arranged such that when the movable element is in the initial position, the movable element abuts against Connect the switch contacts of the second switch, so that the second switch is in a closed state; when the movable element leaves the initial position along the second direction, the movable element and the second switch The contact of the switch is disengaged, so that the second switch is in an off state, Preferably, the second switch is provided at the side wall of the second housing part, and the end of the movable element opposite to the second switch has a recess and an abutment, the recess and the The abutting portion is arranged along the second direction; the movable element is arranged so that: when the movable element is in the initial position, the abutting portion of the movable element abuts the first The switch contacts of the two switches make the second switch in a closed state; when the movable element moves away from the initial position along the second direction, the switch contacts of the second switch move along the movable element. the abutment of the element falls into the recess so that the second switch is in an off state, Preferably, the switch contact of the second switch has a guide portion for guiding the movable element to return to the initial position. 7 . The detection device according to claim 6 , wherein the movable element is provided with a slot, and the second housing part is provided with a corresponding limit portion, 8 . Wherein, the slot of the movable element is adapted to engage with the stop portion of the second housing part to maintain the movable element in the initial position. 8. The detection device according to any one of claims 1 to 3, wherein the movable element is biased in the initial position by the first elastic element. 9. The detection device according to any one of claims 1 to 3, wherein the movable element has two insertion arms, the two insertion arms are respectively located at the respective positions when inserted into the gap. on both sides of the male connector in the radial direction. 10 . The detection device according to claim 1 , wherein the indicating unit is an indicator light. 11 .

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