CN106826650A - A kind of special spanner and multifunctional wrench - Google Patents

Abstract

The invention provides a kind of special spanner and multifunctional wrench, it is related to spanner field.The special spanner that the present invention is provided is used to screw tubular member, and it includes driving end and the handpiece being detachably connected with driving end.Driving end includes the first holder and the second holder, first holder has the first clamping face of circular arc, second holder has the second clamping face of circular arc, first clamping face is oppositely arranged with the second clamping face, first holder is rotated with the second holder and is connected, so that the first clamping face and the second clamping face are optionally near the grasping part for surrounding cylinder and for clamping tubular member, or make the first clamping face and the second clamping face away from each other, so that tubular member can radially depart from driving end.The present invention also provides a kind of multifunctional wrench, which employs above-mentioned special spanner.The special spanner and multifunctional wrench that the present invention is provided have the function of preferably tightening tubular member, and can guarantee that the performance of tubular member.

Description

A special wrench and a multifunctional wrench

technical field

The invention relates to the field of wrenches, in particular to a special wrench and a multifunctional wrench.

Background technique

A wrench is a commonly used installation and removal tool. Hand tools for turning bolts, screws, nuts, and other open or socketed fasteners whose threads hold bolts or nuts tightly by the principle of leverage. The wrench is usually formed with an opening or a sleeve hole for clamping a bolt or a nut at one or both ends of the handle. When in use, an external force is applied to the handle along the thread rotation direction to twist the bolt or nut. However, most of the current wrenches can only screw bolts, screws, nuts and other threads to hold bolts or nuts tightly, but for smoother tubular parts, they cannot provide screwing force to make two tubular parts cooperate. If a general wrench is used , not only can’t clamp the pipe fittings tightly, can’t make the connection between the two pipe parts tighter, but also can make the surface of the pipe parts scratch, greatly affecting the performance of the parts.

Contents of the invention

The purpose of the present invention is to provide a special wrench, which has a better function of tightening the tubular parts and can ensure the performance of the tubular parts.

Another object of the present invention is to provide a multifunctional wrench, which has a better function of tightening tubular parts and can ensure the performance of the tubular parts.

The invention provides a technical solution:

A special wrench for screwing tubular parts, the special wrench includes a wrench head and a handpiece detachably connected to the wrench head;

The wrench head includes a first clamping part and a second clamping part, the first clamping part has a circular arc-shaped first clamping surface, and the second clamping part has a circular arc-shaped second clamping part The first clamping surface is opposite to the second clamping surface, and the first clamping piece is rotatably connected to the second clamping piece so that the first clamping surface and the second clamping surface The second clamping surface is selectively close to the cylindrical clamping space and used to clamp the tubular part, or the first clamping surface and the second clamping surface are separated from each other so that all The tubular part is radially disengageable from the wrench head.

Further, the wrench head further includes an adjustment piece, the adjustment piece includes a connecting piece, a first connection block and a second connection block, and the first connection block and the second connection block are respectively arranged on the first On the same side of the clamping piece and the second clamping piece, the connecting piece selectively fixedly connects the first connecting block and the second connecting block so that the first clamping piece and the The second clamping member approaches each other and clamps the tubular part, or the connecting member is disengaged from the first connecting piece and the second connecting piece, so that the first clamping piece and the second clamping piece components can be separated from each other.

Further, the first connection block is provided with a first connection hole, the first connection hole runs through the first connection block, and the connecting member passes through the first connection hole and connects with the second The connecting block is fixedly connected to fixedly connect the first connecting block and the second connecting block.

Further, the second connecting block is provided with a threaded hole corresponding to the first connecting hole, the connecting member is a screw matching the threaded hole, and the screw passes through the first connecting hole holes and cooperate with the threaded holes to connect the first connection block and the second connection block.

Further, there is a gap between the second connection block and the second clamping piece, and the gap is located at an end of the threaded hole away from the first connection hole.

Further, the wrench head further includes a rotating shaft, and the first clamping part and the second clamping part are rotatably connected through the rotating shaft.

Further, one end of the first clamping member is provided with a plurality of first connection terminals, the plurality of first connection terminals are arranged in parallel at equal intervals, and a plurality of phase connections are opened on the plurality of first connection terminals. the corresponding first through hole;

One end of the second clamping member is provided with a plurality of second connection terminals, the plurality of second connection terminals are arranged in parallel at equal intervals, and a plurality of corresponding second channels are opened on the plurality of second connection terminals. hole;

The rotating shaft passes through the first through hole and the second through hole to rotatably connect the first clamping part to the second clamping part.

Further, the first connection terminals and the second connection terminals are arranged alternately.

Further, a plurality of second connecting holes are provided on the outer peripheral wall of the wrench head, and the plurality of second connecting holes are equally spaced on the outer peripheral wall of the wrench head, and the handpiece passes through the first The two connection holes are detachably connected to the wrench head.

A multifunctional wrench includes a multifunctional tool head and a special wrench used for screwing tubular parts, and the special wrench includes a wrench head and a handpiece detachably connected to the wrench head. The wrench head includes a first clamping part and a second clamping part, the first clamping part has a circular arc-shaped first clamping surface, and the second clamping part has a circular arc-shaped second clamping part The first clamping surface is opposite to the second clamping surface, and the first clamping piece is rotatably connected to the second clamping piece so that the first clamping surface and the second clamping surface The second clamping surface is selectively close to the cylindrical clamping space and used to clamp the tubular part, or the first clamping surface and the second clamping surface are separated from each other so that all The tubular part is radially disengageable from the wrench head. The multi-function tool head is arranged at an end of the hand piece away from the wrench head.

Compared with the prior art, the beneficial effects of the special wrench and the multifunctional wrench provided by the present invention are:

The special wrench and the multifunctional wrench provided by the present invention form a cylindrical clamping space through the cooperation of the arc-shaped first clamping surface and the arc-shaped second clamping surface provided on the wrench head to clamp The tubular part enables the special wrench to screw and fix the tubular part, and the first clamping surface and the second clamping surface can be separated from each other, so that the tubular part can be taken out along its radial direction. Both the first clamping surface and the second clamping surface are arc-shaped, which prevents the outer surface of the tubular part from being scratched and damaged when clamping the tubular part, and ensures that the tubular part has good performance after screwing.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the special wrench provided by the first embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the first viewing angle of the wrench head provided by the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the exploded structure of the wrench head provided by the first embodiment of the present invention at a second viewing angle;

Fig. 4 is a structural schematic diagram of a wrench head provided by the first embodiment of the present invention in a third perspective;

Fig. 5 is a structural schematic diagram of the fourth perspective of the wrench head provided by the first embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a fifth viewing angle of a wrench head provided by the first embodiment of the present invention.

Icons: 10-special wrench; 100-wrench head; 110-first clamping piece; 1101-first side; 1102-second side; 112-first clamping surface; 1122-clamping space; 113-first Connecting terminal; 1131-first through hole; 120-second clamping member; 1201-third side; 1202-fourth side; 122-second clamping surface; 123-second connecting terminal; 1231-second pass Hole; 130-adjusting piece; 131-connector; 132-first connecting block; 1321-first connecting hole; 133-second connecting block; 1331-threaded hole; 134-gap; 140-rotating shaft; 150-second Connection hole; 200-Handpiece.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner" and "outer" are based on the attached The orientation or positional relationship shown in the figure, or the conventionally placed orientation or positional relationship when the product of the invention is used, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

first embodiment

Please refer to FIG. 1 , this embodiment provides a special wrench 10 for screwing tubular parts (not shown), which has a better function of tightening the tubular parts and can ensure the performance of the tubular parts. Wherein, the special wrench 10 includes a wrench head 100 and a hand piece 200 detachably connected to the wrench head 100, and one end of the hand piece 200 is detachably connected to the wrench head 100, so that the user uses the hand piece 200 to pull the wrench head 100 Tubular parts are screwed.

Please refer to FIG. 1 and FIG. 2 together. The wrench head 100 includes a first clamping part 110 and a second clamping part 120 , and the first clamping part 110 and the second clamping part 120 are rotatably connected. In addition, the first clamping piece 110 has an arc-shaped first clamping surface 112, and the second clamping piece 120 has a circular-arc-shaped second clamping surface 122, through which the first clamping piece 110 and the second clamping The rotation connection of the member 120 makes the first clamping surface 112 and the second clamping surface 122 close to the cylindrical clamping space 1122 selectively, or makes the first clamping surface 112 and the second clamping surface 122 close to each other away from, so that the tubular part can disengage from the wrench head 100 along its radial direction.

In this embodiment, one end of the first clamping part 110 is rotatably connected to one end of the second clamping part 120, and the first clamping surface 112 is located on the side of the first clamping part 110 close to the second clamping part 120. And the first clamping surface 112 is an inner concave surface on the first clamping member 110 . The second clamping surface 122 is located on a side of the second clamping part 120 close to the first clamping part 110 , and the second clamping surface 122 is an inner concave surface on the second clamping part 120 . The radii of the first clamping surface 112 and the second clamping surface 122 are the same, so that the first clamping surface 112 and the second clamping surface 122 can follow the first clamping part 110 and the second clamping part 120 when approaching A cylindrical clamping space 1122 can be enclosed. It should be understood that in this embodiment, when the first clamping surface 112 and the second clamping surface 122 are fully connected, a cylindrical clamping space 1122 is formed. In other embodiments, the diameter of the tubular part is too large, so that The first clamping surface 112 and the second clamping surface 122 cannot be completely connected, and the clamping space 1122 at this time is not cylindrical.

Further, referring to FIG. 2 and FIG. 3 in conjunction, the wrench head 100 further includes a rotating shaft 140 through which the first clamping part 110 and the second clamping part 120 are rotatably connected. Moreover, one end of the first clamping member 110 is provided with a plurality of first connection terminals 113, and the plurality of first connection terminals 113 are arranged in parallel at one end of the first clamping member 110 at equal intervals, and on the plurality of first connection terminals 113 A plurality of corresponding first through holes 1131 are opened, and the plurality of first through holes 1131 pass through the plurality of first connecting terminals 113 respectively, and the axial directions of the plurality of first through holes 1131 are collinear. A plurality of second connection terminals 123 are arranged on the second clamping member 120, and a plurality of second connection terminals 123 are arranged in parallel at one end of the second clamping member 120 at equal intervals. There are two corresponding second through holes 1231 , the plurality of second through holes 1231 pass through the plurality of second connecting terminals 123 respectively, and the axes of the plurality of second through holes 1231 are collinear. The rotating shaft 140 passes through the first through hole 1131 and the second through hole 1231 to rotatably connect the first clamping part 110 and the second clamping part 120 .

Further, please refer to FIG. 2 , FIG. 3 and FIG. 4 , a plurality of first connection terminals 113 and a plurality of second connection terminals 123 are arranged alternately. In this embodiment, there are three first connection terminals 113 and the second There are three connecting terminals 123, and the arrangement sequence of three first connecting terminals 113 and three second connecting terminals 123 is as follows: one first connecting terminal 113, one second connecting terminal 123, one first connecting terminal 113, one The second connection terminal 123 , one first connection terminal 113 and one second connection terminal 123 . It should be understood that in other embodiments, the number and arrangement of the first connection terminals 113 and the second connection terminals 123 may also be different, for example, two second connection terminals 123 are arranged between two first connection terminals 113, or Two first connection terminals 113 and the like are disposed between the two second connection terminals 123 .

In this embodiment, the first clamping member 110 has a first side 1101 and a second side 1102 opposite to each other, and three first connection terminals 113 are arranged in parallel at one end of the first clamping member 110 at equal intervals, and are located at The outer side of one of the first connecting terminals 113 on both sides is coplanar with the first side 1101 , and the distance between the outer side of the other first connecting terminal 113 and the second side 1102 is the same as the thickness of the first connecting terminal 113 , In addition, the distance between each first connecting terminal 113 is equal to the thickness of the first connecting terminal 113 . The second clamping piece 120 has a third side 1201 and a fourth side 1202 oppositely arranged, and three second connecting terminals 123 are arranged in parallel at one end of the second clamping piece 120 at equal intervals, and the second connecting terminals located on both sides The outer side of one of the terminals 123 is coplanar with the third side 1201, and the distance between the outer side of the other second connection terminal 123 and the fourth side 1202 is equal to the thickness of the second connection terminal 123. In addition, each second connection terminal The distance between 123 is equal to the thickness of the second connecting terminal 123 . Further, the first connecting terminal 113 and the second connecting terminal 123 have the same thickness.

Further, please refer to FIG. 5 and FIG. 6 in conjunction, the wrench head 100 also includes an adjustment part 130, the adjustment part 130 is used to make the first clamping part 110 and the second clamping part 120 clamp the tubular part, and adjust the first clamp The holding part 110 and the second holding part 120 hold the clamping degree of the tubular part. Wherein, the adjusting part 130 includes a connecting part 131, a first connecting block 132 and a second connecting block 133, and the first connecting block 132 and the second connecting block 133 are respectively arranged on the first clamping part 110 and the second clamping part 120 On the same side of the same side, the connecting piece 131 selectively fixedly connects the first connecting piece 132 and the second connecting piece 133 so that the first clamping piece 110 and the second clamping piece 120 are close to each other and clamp the tubular part, or the connecting piece 131 The first connecting block 132 and the second connecting block 133 are disengaged, so that the first clamping part 110 and the second clamping part 120 are separated from each other.

Moreover, the first connecting block 132 is provided with a first connecting hole 1321, the first connecting hole 1321 runs through the first connecting block 132, and the connecting member 131 is fixedly connected to the second connecting block 133 through the first connecting hole 1321, so as to be fixedly connected. The first connecting block 132 and the second connecting block 133 make the first clamping part 110 and the second clamping part 120 clamp the tubular part.

In this embodiment, the second connecting block 133 is provided with a threaded hole 1331 corresponding to the first connecting hole 1321, and the connecting member 131 is a screw matching the threaded hole 1331, and the screw passes through the first connecting hole 1321 and The threaded holes 1331 cooperate to connect the first connecting block 132 and the second connecting block 133 . Through the cooperation of the screw and the threaded hole 1331, the first clamping part 110 and the second clamping part 120 can clamp tubular parts of different sizes, and more clamping force can be adjusted, making it more convenient to screw the tubular parts .

In addition, in this embodiment, there is a gap 134 between the second connecting block 133 and the second clamping member 120, the gap 134 is located at the end of the threaded hole 1331 away from the first connecting hole 1321, and the threaded hole 1331 runs through the second connecting block 133 communicates with the gap 134 . In order to prevent the diameter of the tubular part from being too small when the screw is screwed into the threaded hole 1331, the screw may be held against the bottom of the threaded hole 1331, resulting in failure to clamp the tubular part. After the gap 134 is set, if the size of the tubular part is too small, the screw will pass through the threaded hole 1331 and extend into the gap 134, which will not affect the clamping of the tubular part by the wrench head 100.

In addition, a plurality of second connection holes 150 are provided on the outer peripheral wall of the wrench head 100, and the second connection holes 150 are used for detachably connecting the hand piece 200 to the wrench head 100. In this embodiment, the second connection holes 150 There are five, two of which are set on the outer peripheral wall of the first clamping part 110 , and the other three are set on the outer peripheral wall of the second clamping part 120 . The distance between two second connecting holes 150 disposed on the first clamping member 110 is equal to the distance between two adjacent second connecting holes 150 disposed on the second clamping member 120 .

One end of the hand piece 200 is selectively accommodated in the second connection hole 150 so that the hand piece 200 is installed on the wrench head 100 , or the hand piece 200 is disengaged from the second connection hole 150 to disassemble the hand piece 200 .

The special wrench 10 provided in this embodiment clamps the tubular part through the circular arc-shaped first clamping surface 112 and the circular arc-shaped second clamping surface 122 to form a cylindrical clamping space 1122, and through the adjustment piece 130 adjusts the degree of clamping of the clamped tubular part for screwing the tubular part. It can better screw the tubular parts and ensure the performance of the tubular parts. Alternatively, the adjusting member 130 moves the first clamping member 110 and the second clamping member 120 away from each other, so that the tubular part can be disengaged from the wrench head 100 in its radial direction. It is more convenient for users to operate. In addition, the hand piece 200 is detachably installed on the wrench head 100, so as to avoid affecting the operation when the wrench head 100 clamps the tubular part, which is convenient for the user to operate.

second embodiment

This embodiment provides a multifunctional wrench (not shown in the figure), which has a better function of tightening the tubular parts and can ensure the performance of the tubular parts. Wherein, the multi-function wrench includes a multi-function tool head (not shown in the figure) and the special wrench 10 provided in the first embodiment, and the multi-function tool head is arranged at an end of the hand piece 200 away from the wrench head 100 .

The multifunctional tool head can be a wrench for screwing screws, bolts, etc., or a tool such as a line drawing tool.

The multifunctional wrench provided in this embodiment adopts the special wrench 10 provided in the first embodiment, and forms a cylindrical clamping space through the arc-shaped first clamping surface 112 and the arc-shaped second clamping surface 122. 1122 to clamp the tubular part, and adjust the clamping degree of the clamped tubular part through the adjusting member 130, so as to screw the tubular part. It can better screw the tubular parts and ensure the performance of the tubular parts. Alternatively, the adjusting member 130 moves the first clamping member 110 and the second clamping member 120 away from each other, so that the tubular part can be disengaged from the wrench head 100 in its radial direction. It is more convenient for users to operate. In addition, the hand piece 200 is detachably installed on the wrench head 100, so as to avoid affecting the operation when the wrench head 100 clamps the tubular part, which is convenient for the user to operate. And the multifunctional wrench provided in this embodiment is also provided with a multifunctional tool head, so that the hand piece 200 can realize more functions, and realize the multi-purpose function of one tool, which can prevent the user from carrying too many tools and affect the operation. cost savings to a certain extent.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A special wrench, characterized in that, for screwing tubular parts, the special wrench comprises a wrench head and a handpiece detachably connected to the wrench head; The wrench head includes a first clamping part and a second clamping part, the first clamping part has a circular arc-shaped first clamping surface, and the second clamping part has a circular arc-shaped second clamping part The first clamping surface is opposite to the second clamping surface, and the first clamping piece is rotatably connected to the second clamping piece so that the first clamping surface and the second clamping surface The second clamping surface is selectively close to the cylindrical clamping space and used to clamp the tubular part, or the first clamping surface and the second clamping surface are separated from each other so that all The tubular part is radially disengageable from the wrench head. 2. The special wrench according to claim 1, characterized in that, the wrench head also includes an adjustment piece, the adjustment piece includes a connecting piece, a first connection block and a second connection block, the first connection block and the second connection block The second connecting block is respectively arranged on the same side of the first clamping piece and the second clamping piece, and the connecting piece selectively fixedly connects the first connecting block and the second connecting piece block so that the first clamping piece and the second clamping piece are close to each other and clamp the tubular part, or the connecting piece is disengaged from the first connecting block and the second connecting block so that the The first clamping part and the second clamping part can be separated from each other. 3. The special wrench according to claim 2, wherein a first connecting hole is opened on the first connecting block, the first connecting hole runs through the first connecting block, and the connecting piece passes through through the first connecting hole and fixedly connected with the second connecting block, so as to fixedly connect the first connecting block and the second connecting block. 4. The special wrench according to claim 3, wherein a threaded hole corresponding to the first connecting hole is opened on the second connecting block, and the connecting piece is matched with the threaded hole The screws pass through the first connecting hole and cooperate with the threaded hole to connect the first connecting block and the second connecting block. 5. The special wrench according to claim 4, characterized in that there is a gap between the second connecting block and the second clamping piece, and the gap is located where the threaded hole is away from the first connecting hole one end. 6 . The special wrench according to claim 1 , wherein the wrench head further comprises a rotating shaft, and the first clamping part and the second clamping part are rotatably connected through the rotating shaft. 7. The special wrench according to claim 6, characterized in that, one end of the first clamping member is provided with a plurality of first connection terminals, a plurality of the first connection terminals are arranged in parallel at equal intervals, and more A plurality of corresponding first through holes are opened on each of the first connecting terminals; One end of the second clamping member is provided with a plurality of second connection terminals, the plurality of second connection terminals are arranged in parallel at equal intervals, and a plurality of corresponding second channels are opened on the plurality of second connection terminals. hole; The rotating shaft passes through the first through hole and the second through hole to rotatably connect the first clamping part to the second clamping part. 8. The special wrench according to claim 7, characterized in that, the first connection terminals and the second connection terminals are arranged alternately. 9. The special wrench according to any one of claims 1-8, characterized in that, a plurality of second connecting holes are also provided on the peripheral wall of the wrench head, and a plurality of the second connecting holes are equally spaced. Distributed on the peripheral wall of the wrench head, the hand piece is detachably connected to the wrench head through the second connection hole. 10. A multifunctional wrench, characterized in that it comprises a multifunctional tool head and the special wrench according to any one of claims 1-9, the multifunctional tool head is arranged at a position where the hand piece is away from the wrench head one end.