CN220428209U

CN220428209U - Torque spanner

Info

Publication number: CN220428209U
Application number: CN202321987204.XU
Authority: CN
Inventors: 吴天羲
Original assignee: Zhejiang Youlian Shipbuilding Co ltd
Current assignee: Zhejiang Youlian Shipbuilding Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-02-02
Anticipated expiration: 2033-07-26

Abstract

The application discloses torque wrench includes: the wrench body is provided with a first connecting part; a sleeve detachably connected to the first connecting portion; and the lengthening piece is provided with a second connecting part and an operating part which are arranged at intervals along the length direction, the second connecting part is used for being detachably connected with the first connecting part, when the second connecting part is connected with the wrench body, the length direction of the lengthening piece is parallel to the length direction of the wrench body, the operating part comprises a third connecting part, and the third connecting part is used for being detachably connected with the sleeve, or the operating part comprises a wrench hole. The application provides a torque wrench, through the extension piece that is configured with the confession user at torque wrench, not only make torque wrench's arm of force length can increase to improve torque wrench's application scope, and still make torque wrench's simple structure, and with low costs.

Description

Torque spanner

Technical Field

The present utility model relates generally to the field of mechanical technology, and more particularly to torque wrenches.

Background

Torque wrenches are a tool commonly used in bolt tightening torque measurement during bolt tightening. Wrenches are of various types and the arm lengths of the different types of wrenches are different. A wrench with a conventional range of use moment arm is typically configured for cost considerations. For some wrenches with larger arm lengths, the wrenches are not usually stored, and the wrenches need to be purchased on site, so that the progress of equipment assembly is affected, and the cost of tools and the tool storage space are increased.

Disclosure of Invention

In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a torque wrench.

The application provides a torque wrench, including:

the wrench body is provided with a first connecting part;

a sleeve detachably connected to the first connecting portion;

and the lengthening piece is provided with a second connecting part and an operating part which are arranged at intervals along the length direction, the second connecting part is used for being detachably connected with the first connecting part, when the second connecting part is connected with the wrench main body, the length direction of the lengthening piece is parallel to the length direction of the wrench main body, the operating part comprises a third connecting part, and the third connecting part is used for being detachably connected with the sleeve, or the operating part comprises a wrench hole.

Further, the third connecting portion comprises a first connecting column, the sleeve is provided with a first mounting hole, the shape of the first mounting hole is matched with that of the first connecting column, the first connecting column and the first mounting hole can be in plug-in fit, and the plug-in fit first connecting column and the first mounting hole are in anti-rotation fit.

Further, the first connecting portion comprises a second connecting column, the shape of the second connecting column is matched with that of the first mounting hole, the second connecting column and the first mounting hole can be in plug-in fit, and the plug-in fit second connecting column and the first mounting hole are in anti-rotation fit.

Further, the second connecting portion is a second mounting hole, the second mounting hole penetrates through the extension piece, the shape of the second mounting hole is matched with the shape of the second connecting column, the second connecting column and the second mounting hole can be in plug-in fit, and the plug-in fit second connecting column and the second mounting hole are in anti-rotation fit.

Further, the axis of the first connecting post, the axis of the second connecting post, the axis of the wrench body and the axis of the extension piece are arranged in a coplanar manner.

Further, the extension piece is provided with a third mounting hole which penetrates through the extension piece, the shape of the third mounting hole is matched with that of the first connecting column, and the first connecting column is inserted into the third mounting hole.

Further, the first connecting column is prismatic, and/or the second connecting column is prismatic.

Further, the first connecting column and the second connecting column are both regular quadrangular prisms.

Further, the end of the pulling hole far away from the second connecting part is provided with an opening.

Further, the number of torque wrench extension pieces that this application provided is a plurality of, and the arm of force length of a plurality of extension pieces is different.

The utility model provides a torque wrench, through the extension piece that is configured with the confession user to select to use at torque wrench, the user can increase torque wrench's arm of force length when adding the extension piece to torque wrench, the user can make torque wrench can operate with initial arm of force length when not adding the extension piece to torque wrench, not only make torque wrench's arm of force length can increase, in order to improve torque wrench's application scope, and still make torque wrench's simple structure, and with low costs.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

fig. 1 is a schematic structural diagram of a torque wrench in a basic mode according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a torque wrench in an extension mode according to an embodiment of the present disclosure;

FIG. 3 is a schematic top view of the structure of FIG. 2;

FIG. 4 is a schematic view of the structure of an extension member provided in an embodiment of the present application;

fig. 5 is a schematic structural view of an extension member according to another embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

Referring to fig. 1-4, an embodiment of the present application provides a torque wrench, including:

a wrench body 100, wherein the wrench body 100 is provided with a first connection portion;

a sleeve 300, the sleeve 300 being detachably connected to the first connection portion;

the extension 400, the extension 400 is provided with second connection parts and operation parts arranged at intervals along the length direction, the second connection parts are used for being detachably connected with the first connection parts, when the second connection parts are connected with the wrench body 100, the length direction of the extension 400 is parallel to the length direction of the wrench body 100, the operation parts comprise third connection parts, the third connection parts are used for being detachably connected with the sleeve 300, or the operation parts comprise wrench holes 430.

In this embodiment, the moment arm length of the wrench body 100 is the initial moment arm length of the torque wrench, and the basic mode of the torque wrench can be formed between the wrench body 100 and the socket 300. The extension 400 may be selected for use by a user, specifically: the user may choose to attach the extension 400 to the base mode torque wrench while the torque wrench is in the extension mode; or the user chooses not to use the extension 400 when the user uses the torque wrench in the base mode. The process of switching the torque wrench from the basic mode to the lengthening mode is as follows: the sleeve 300 is detached from the first connecting portion, and then the second connecting portion and the first connecting portion are connected to attach the extension 400, and when the extension 400 is provided with the third connecting portion, the user finally installs the detached sleeve 300 to the third connecting portion, and when the extension 400 is provided with the pulling hole, the sleeve 300 is not required to be used. The process of switching the torque wrench from the lengthening mode to the basic mode is as follows: the first connecting portion and the second connecting portion are detached, and if the sleeve 300 is mounted on the third connecting portion, the sleeve 300 is detached, and finally the sleeve 300 is mounted on the first connecting portion. So set up, not only make torque arm length of torque wrench can increase to improve torque wrench's application scope, and still make torque wrench's structure simplification, and with low costs

The sleeve 300 is provided with a tightening hole, and the nut is accommodated in the tightening hole, so that the torque wrench can tighten and loosen the nut. The spanner hole is also used for accommodating the nut so that the torque spanner can carry out tightening operation on the nut. The shape of the trigger holes may be, but is not limited to, polygonal, etc.

In some embodiments of the present application, the third connection portion includes a first connection post 500, the sleeve 300 is provided with a first mounting hole, the shape of the first mounting hole matches the shape of the first connection post 500, the first connection post 500 and the first mounting hole are pluggable in cooperation, wherein a spin-stop cooperation is provided between the pluggable first connection post 500 and the first mounting hole.

In this embodiment, the extension 400 is inserted into the first mounting hole of the sleeve 300 through the first connection post 500, so as to achieve the detachability between the extension 400 and the sleeve 300. When the first connection post 500 is in plug-in fit with the first mounting hole, the first connection post 500 is in extrusion contact with the inner wall of the first mounting hole, and extrusion force between the first connection post 500 and the inner wall of the first mounting hole is not large, so that the sleeve 300 and the extension piece 400 can be conveniently detached from each other, and the sleeve 300 and the extension piece 400 can be prevented from being easily separated after being assembled.

The first connecting post 500 is in a screwed-locking fit with the first mounting hole, so that relative displacement between the extension piece 400 and the sleeve 300 in the circumferential direction along the first mounting hole is avoided, and normal use of the torque wrench is ensured.

Wherein the first connection post 500 is at least partially disposed at one side of the extension 400 in the thickness direction, and preferably at an end of the extension 400. The shape of the first connection post 500 is preferably prismatic, so that the first connection post 500 and the first mounting hole are naturally engaged with each other by the non-rotation engagement, thereby simplifying the structure. Of course, in other embodiments, the first connecting post 500 may also be elliptical, and so on. Further preferably, the first connection post 500 is a regular quadrangular prism.

In some embodiments of the present application, the first connection portion includes a second connection post 200, the shape of the second connection post 200 matches the shape of the first mounting hole, the second connection post 200 and the first mounting hole are pluggable, wherein a non-rotational fit is provided between the pluggable second connection post 200 and the first mounting hole.

In this embodiment, the wrench body 100 is in plug-in fit with the first mounting hole of the socket 300 through the second connection post 200, so as to achieve the detachability between the wrench body 100 and the socket 300. When the second connecting column 200 is in plug-in fit with the first mounting hole, the second connecting column 200 is in extrusion contact with the inner wall of the first mounting hole, and extrusion force between the second connecting column 200 and the inner wall of the first mounting hole is not large, so that the sleeve 300 and the wrench body 100 can be conveniently detached, and the sleeve 300 and the wrench body 100 can be prevented from being easily separated after being assembled.

The second connecting post 200 is in a screwed connection with the first mounting hole, so that relative displacement between the wrench body 100 and the sleeve 300 in the circumferential direction along the first mounting hole is avoided, and normal use of the torque wrench is ensured.

The second connection post 200 is disposed on one side of the wrench body 100 in the thickness direction, and is preferably located at the plate head end of the wrench body 100. The shape of the second connection post 200 is preferably prismatic, so that the second connection post 200 and the first mounting hole are naturally engaged with each other by the non-rotation engagement, thereby simplifying the structure. Of course, in other embodiments, the second connecting post 200 may also be elliptical, and so on. Further preferably, the second connection post 200 is a regular quadrangular prism.

The second connection post 200 and the first connection post 500 may have the same structure to optimize the wrench structure.

In some embodiments of the present application, the middle part of the wrench body 100 may be provided with a mounting post, and the top of the mounting post is provided with a receiving groove, and a magnet is fixedly disposed in the receiving groove. The sleeve 300 can be sleeved at the top of the mounting column through the first mounting hole and magnetically attracted to the sleeve 300 through the magnet, so that the sleeve 300 is prevented from being easily separated from the mounting column. By arranging the mounting column, the idle sleeve 300 can be mounted on the mounting column, and the situation that the idle sleeve 300 is lost is avoided.

In some embodiments of the present application, the second connection portion is a second mounting hole 410, the second mounting hole 410 extends through the elongated member 400, the shape of the second mounting hole 410 is adapted to the shape of the second connection post 200, the second connection post 200 and the second mounting hole 410 are in a pluggable fit, wherein the pluggable fit is a non-rotational fit between the second connection post 200 and the second mounting hole 410.

In this embodiment, the wrench body 100 is mated with the second mounting hole of the extension member 400 through the second connection post 200, so as to achieve the detachment between the wrench body 100 and the extension member 400. When the second connecting post 200 is in plug-in fit with the second mounting hole, the second connecting post 200 is in extrusion contact with the inner wall of the second mounting hole, and the extrusion force between the second connecting post 200 and the inner wall of the second mounting hole is not large, so that the extension piece 400 and the wrench body 100 can be conveniently detached, and the extension piece 400 and the wrench body 100 can be prevented from being easily separated after being assembled.

The second connecting post 200 is in a screwed connection with the second mounting hole, so that relative displacement between the wrench body 100 and the extension piece 400 in the circumferential direction of the second mounting hole is avoided, and normal use of the torque wrench is ensured.

In some embodiments of the present application, the extension piece 400 is provided with a third mounting hole 420 penetrating therethrough, the shape of the third mounting hole 420 is matched with the shape of the first connection post 500, and the first connection post 500 is inserted into the third mounting hole 420. The third mounting hole 420 is connected with the first connecting post 500, that is, the first connecting post 500 is connected with the extension piece 400, and the sleeve 300 can be mounted on the extension piece 400 through the first connecting post 500 for a user to use.

In this embodiment, a non-rotational fit is provided between the mating first connection post 500 and the third mounting hole.

In some embodiments of the present application, the axis of the first connection post 500, the axis of the second connection post 200, the axis of the wrench body 100, and the axis of the extension 400 are disposed coplanar. By the arrangement, the effective force arm and the actual force arm of the torque wrench in the lengthening mode are the same, and the length of the torque wrench reaching the target torque is shortened.

Wherein, for example and without limitation, the wrench body and the extension 400 are substantially rectangular parallelepiped, and the second mounting hole and the third mounting hole are located on the axis of the extension 400 when in the extension mode, and the axes of the extension 400 and the wrench body 100 are coplanar.

Referring to fig. 5, in some embodiments of the present application, an end of the wrench hole 430 away from the second connection portion is provided with an opening, so that the nut can enter the wrench hole from the opening of the wrench hole, so as to enrich the tightening operation mode of the wrench on the nut.

In some embodiments of the present application, the number of elongate members 400 is several, and the arm lengths of the several elongate members 400 are different. The number of extension pieces 400 is not limited and different extension pieces 400 may be selected according to the torque desired by the user.

It should be appreciated that in the lengthened mode, the torque wrench has a torque arm length equal to the sum of the torque arm length of the extension 400 and the torque arm length of the wrench body 100. In the base mode, the torque wrench has a torque arm equal to the length of the torque arm of the wrench body 100. The length of the moment arm of the extension 400 is the hole distance between the second mounting hole and the third mounting hole (or spanner hole), as shown by X in the drawing, and the length of the moment arm of the spanner body 100 is the distance from the end surface of the spanner body 100 away from the extension 400 to the axis of the second connecting post 200, as shown by Y in the drawing.

It will be appreciated that references above to orientations or positional relationships as referred to by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are for convenience of description and simplicity of description only, and do not indicate or imply that the device or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first", "a second" or the like may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is three or more.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims

1. A torque wrench, comprising:

the wrench body is provided with a first connecting part;

a sleeve detachably connected to the first connection portion;

the extension piece, the extension piece is equipped with along length direction interval arrangement's second connecting portion and operating means, second connecting portion be used for with first connecting portion detachably connects when second connecting portion with first connecting portion connect, the length direction of extension piece with wrench body's length direction is parallel, operating means includes third connecting portion, third connecting portion be used for with sleeve detachably connects, perhaps, operating means includes pulls the hole.

2. The torque wrench of claim 1, wherein the third connection portion includes a first connection post, the sleeve is provided with a first mounting hole, the first mounting hole is shaped to match the shape of the first connection post, the first connection post and the first mounting hole are in a pluggable fit, wherein a non-rotational fit is provided between the first connection post and the first mounting hole in the pluggable fit.

3. The torque wrench of claim 2, wherein the first connection includes a second connection post having a shape that matches the shape of the first mounting hole, the second connection post and the first mounting hole being a pluggable fit, wherein a non-rotational fit is provided between the pluggable fit second connection post and the first mounting hole.

4. A torque wrench as claimed in claim 3, wherein the second connection portion is a second mounting hole extending through the elongate member, the shape of the second mounting hole being adapted to the shape of the second connection post, the second connection post and the second mounting hole being in a pluggable fit, wherein the pluggable fit is a non-rotational fit between the second connection post and the second mounting hole.

5. A torque wrench as claimed in claim 3, wherein the axis of the first connection post, the axis of the second connection post, the axis of the wrench body and the axis of the extension are co-planar.

6. The torque wrench of claim 2, wherein the extension member is provided with a third mounting hole therethrough, the third mounting hole being shaped to accommodate the shape of the first connecting post, the first connecting post being inserted into the third mounting hole.

7. A torque wrench as claimed in claim 3, wherein the first connection post is prismatic and/or the second connection post is prismatic.

8. The torque wrench of claim 7, wherein the first and second connection posts are each right square prisms.

9. The torque wrench of claim 1, wherein an end of the wrench hole remote from the second connection portion is open.

10. A torque wrench as claimed in any one of claims 1 to 9, wherein the number of said elongate members is a number and the arm lengths of said elongate members are different.