TWM468381U - Retractable and positioning wrench - Google Patents

Description

Retractable positioning wrench

This creation is about a wrench, especially a retractable positioning wrench.

Generally speaking, when the user operates the torque wrench to perform the work of loosening or locking, since the volume of the torque wrench has a certain size in space, the manufacturer considers the convenience and operation requirements of the user. The strength requirements, resulting in a telescopic torque wrench as shown in Figure 1.

Referring to FIG. 1 , FIG. 1 is a schematic view showing the appearance of a conventional telescopic torque wrench, which comprises: an outer tubular body 1 , a telescopic rod body 2 disposed inside the outer tubular body 1 , and a set outside. The outer tube body 1 has a receiving groove 1a therein, and a ball (not shown) is disposed on the wall surface of the outer tube body 1; a driving end is provided at one end of the telescopic rod body 2 The portion 2a has a plurality of positioning holes 2b extending in the axial direction of the telescopic rod body 2, and the telescopic rod body 20 can be inserted into the accommodating groove 1a, and the telescopic rod body 2 and the accommodating groove 1a are The cooperation between the two uses a cylinder and a circular hole; the operating member 3 can be slid along the axial direction of the outer tubular body 1, and can generate a clamping position and a disengagement position, and the ball is in the locking position. The positioning holes 2b can be engaged with the positioning holes 2b. In the disengaged position, the balls can move to the positioning holes 2b, thereby adjusting the telescopic length of the telescopic rod body 2 relative to the outer tube body 1.

According to the prior art described above, although the telescopic rod body 2 can be expanded and contracted relative to the outer tube body 1 to achieve the effect of adjusting the length of the arm, it has the following disadvantages: due to the difference between the telescopic rod body 2 and the accommodating groove 1a. The cooperation adopts a cylinder and a circular hole. During the operation, the user may easily rotate the outer tube 1 radially to the telescopic rod body 2 due to inadvertent operation, which may cause the ball to be deflated in the positioning hole 2b and cause improper operation. , and thus the risk of injury to the user.

Therefore, the purpose of this creation is to provide a retractable wrench that can be securely snapped to achieve the desired length for practical operation.

In view of the above shortcomings, the present invention provides a telescopic positioning wrench, which can strengthen the connection between the grip and the telescopic rod body during the actual operation, and is not easy to be loosened.

The present invention provides a telescopic positioning wrench, comprising: a handle having an opening at one end thereof; and a receiving groove extending inwardly from the opening; and at least one limiting portion is disposed on the inner wall of the receiving groove a movable rod body is provided with a driving portion at one end thereof, and the movable rod body can be provided with at least one abutting portion corresponding to the limiting portion, so that the movable rod body can be movably disposed in the accommodating groove, and the radial rotation cannot be performed. And a fixing device disposed between the handle and the movable rod body, wherein the fixing device fixes the relative position of the handle and the movable rod body in an adjustable manner.

According to the above, the effect achieved by the present invention is that the contact surface of the abutting portion and the limiting portion is at least one plane, and the limiting portion can be designed as a flat surface, and the corresponding abutting portion can be a flat surface. The movable rod body can only be moved through the accommodating groove, and the radial rotation cannot be performed. Therefore, the user can avoid the radial rotation of the handle due to the operation during the operation, and the groove is generated. The situation occurs and causes improper operation, which in turn leads to the risk of injury to the user.

For the convenience of the description, the central idea expressed in the column of the above novel content is expressed by a specific embodiment. The various items in the embodiments are set forth in proportion to the description and not in the

Please refer to FIG. 2 to FIG. 5 , FIG. 2 is a schematic diagram of the appearance of the creation, FIG. 3 is an exploded view of the creation, FIG. 4 is a schematic cross-sectional view of the creation of the fastening device at the buckle position, and FIG. Schematic diagram of the solid device in the disengaged position. The retractable positioning wrench of the present invention includes:

A handle 10 is provided with an opening 11 at one end thereof, and the opening 11 extends inwardly to provide a receiving groove 12, and at least a limiting portion 13 is disposed on the inner wall of the receiving groove 12, and is located at the periphery of the handle 10. One end of the opening 11 is provided with a through hole 14 that can pass through the accommodating groove 12 . The limiting portion 13 is integrally formed on one side of the accommodating groove 12 , and the limiting portion 13 is along the handle 10 . The axial direction is disposed on the inner wall of the accommodating groove 12, and a one-way stop groove 15 is disposed at an inner edge of one end of the accommodating groove 12. In the embodiment, the limiting portion 13 is designed to be a flat surface, so that the designing portion can be a flat surface. The accommodating groove 12 and the limiting portion 13 have a non-circular cross section, and the through hole 14 is disposed on the opposite side of the limiting portion 13. The one-way stopping groove 15 is designed to include a stopping surface 15a and a chamfering surface. Face 15b.

A movable rod body 20 is provided with a driving portion 21 at one end thereof, and the movable rod body 20 can be provided with at least one abutting portion 22 compatible with the limiting portion 13 corresponding to the limiting portion 13 for the movable rod body 20 only The axial movement is disposed in the accommodating groove 12, and the radial rotation is not possible. The movable rod body 20 is provided with a plurality of positioning grooves 23 in a spaced manner, and is different from the driving portion 21 at the abutting portion 22. One end is provided with a recess 24, in this embodiment, the abutting portion 22 can be shaped corresponding to the outer shape of the limiting portion 13, which is a flat surface, and the driving portion 21 can be set as a sleeve joint, which can be applied to a plurality of sockets. Sleeve element.

A fixing device 30 is disposed between the handle 10 and the movable rod body 20 for fixing the relative position of the handle 10 and the movable rod body 20. When the movable rod body 20 is movably disposed in the receiving groove At 12 o'clock, the securing device 30 is fixed to the relative position of the handle 10 and the movable rod body 20 in an adjustable manner. In this embodiment, the securing device 30 includes a control member 31, an elastic member 32, and a The positioning member 33 and a resisting piece 34 are movably disposed on the periphery of the handle 10 so as to be slidable along the axial direction of the handle 10, and the control member 31 is spaced apart from the handle 10. An active space 31a and a limiting space 31b, wherein one end of the limiting space 31b is tapered toward the other end, and one end of the limiting space 31b is adjacent to the movable space 31a; and the resisting piece 34 is used for arranging It is fixed between the control member 31 and the periphery of the handle 10 as a stop effect; and the elastic member 32 is disposed in the movable space 31a, and one end of the elastic member 32 abuts against the control member 31, and the other end abuts against the resisting piece. 34, the control member 31 can be normally moved toward the handle 10 at one end of the opening 11 to form a buckle position. (As shown in FIG. 4), the control member 31 can be slid to the handle 10, and the control member 31 is moved away from the handle 10 at one end of the opening 11 to form a disengaged position (as shown in FIG. 5). The positioning member 33 is disposed in a movable manner on the through hole 14 of the handle 10. When the control member 31 is moved to the buckle position, the positioning member 33 is pushed by the narrower end wall of the limiting space 31b, so that the positioning member 33, one of the positioning slots 23 is embedded. When the control member 31 is moved to the disengaged position, one end of the limiting space 31b is moved to one side of the positioning member 33, and the positioning member 33 is not limited to the space. The wall of 31b is restrained and can be moved to the positioning groove 23.

A latch 40 is disposed in the recess 24 in a telescopic manner, and a one-way stop groove 15 is formed on the inner edge of one end of the receiving slot 12. In this embodiment, the latch 40 is provided. One end is in the shape of a round head. When the movable rod body 20 slides inside the accommodating groove 12, the pin 40 is normally retracted into the groove 24 due to the restriction of the inner wall of the accommodating groove 12, when the movable rod body 20 is located. When the pin 40 is displaced to the one-way stop groove 15, the pin 40 directly slides into the one-way stop groove 15 and is resisted by the stop surface 15a without being disengaged from the receiving groove 12, and an external force fit can be applied. The chamfered surface 15b directly pushes the movable rod 20 into the accommodating groove 12.

The above is an overview of the structure and shape of the creation, and the combination of the creation and the principle of the function that can be achieved are as follows:

Please refer to FIG. 6 , which is a schematic diagram of the anti-detachment of the inventive plug. First, it is understood that the implementation of the present invention focuses on the cooperation between the limiting portion 13 and the abutting portion 22, and the contact surface between the abutting portion 22 and the limiting portion 13 is at least one plane. In this embodiment, the limiting portion The design of the 13 is a flat surface, and the mating abutment portion 22 is compatible with the limiting portion 13 and the abutting portion 22 is designed as a plane of the side of the movable rod body 20, so that the receiving groove 12 together with the limiting portion 13 The cross section has a non-circular shape, and the abutting relationship between the abutting portion 22 and the limiting portion 13 causes the movable rod body 20 to be displaced in the accommodating groove 12 only in the axial direction, and cannot be performed. The rotation is radial, so that when the user operates, the positioning member 33 of the fastening device 30 can be prevented from being gullyed in the positioning groove 23 of the movable rod body 20.

Please refer to FIG. 7, which is another preferred embodiment of the present invention. Based on the central idea of the present invention, the limiting portion 13 and the abutting portion 22 have a compatible structure, so that the movable rod body 20 can only move axially to the receiving groove 12 without being radially rotated. In this embodiment, the driving portion 21 at one end of the movable rod body 20 can be set as a multi-angle sleeve joint, which can increase the scope of application and increase the overall applicability, and can also be applied to a plurality of sleeve components. Produce to avoid the occurrence of trenching.

In summary, the retractable positioning wrench of the present invention utilizes the setting of the limiting portion 13 and the corresponding abutting portion 22 is compatible with each other, and only the movable rod body 20 can be axially moved to the receiving groove 12 . Among them, the radial rotation cannot be performed, so that it is possible to prevent the user from accidentally rotating the handle 10 in the radial direction during the operation, and the occurrence of the deflation occurs.

Although the present invention has been described in terms of a preferred embodiment, it is obvious to those skilled in the art that various changes can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Any modification or change that is not in violation of the spirit of this creation is the scope of patent application for this creation.

10‧‧‧Handle
11‧‧‧ openings
12‧‧‧ accommodating slots
13‧‧‧Limited
14‧‧‧Perforation
15‧‧‧One-way stop groove
15a‧‧‧ stop surface
15b‧‧‧Chamfered surface
20‧‧‧Active Rod
21‧‧‧ Drive Department
22‧‧‧Affiliation
23‧‧‧ positioning slot
24‧‧‧ Groove
30‧‧‧Clamping device
31‧‧‧Controls
32‧‧‧Flexible parts
33‧‧‧ Positioning parts
34‧‧‧Resistance film
31a‧‧‧Event space
31b‧‧‧Limited space
40‧‧‧ latch
41‧‧‧Flexible parts

[Fig. 1] is a schematic view showing the appearance of a conventional telescopic torque wrench. [Fig. 2] A schematic diagram of the appearance of the creation. [Fig. 3] An exploded view of the creation. [Fig. 4] is a schematic cross-sectional view of the creation fixing device at the buckle position. [Fig. 5] is a schematic cross-sectional view of the creation securing device in a disengaged position. [Fig. 6] This is a schematic diagram of the anti-detachment of the original plug. [Fig. 7] Another preferred embodiment of the present invention.

10‧‧‧Handle

11‧‧‧ openings

12‧‧‧ accommodating slots

13‧‧‧Limited

15‧‧‧One-way stop groove

20‧‧‧Active Rod

21‧‧‧ Drive Department

22‧‧‧Affiliation

23‧‧‧ positioning slot

24‧‧‧ Groove

31‧‧‧Controls

32‧‧‧Flexible parts

33‧‧‧ Positioning parts

34‧‧‧Resistance film

40‧‧‧ latch

41‧‧‧Flexible parts

Claims (10)

A retractable positioning wrench includes: a handle having an opening at one end thereof; and a receiving groove extending inwardly of the opening; and at least a limiting portion is disposed on the inner wall of the receiving groove; a movable rod body is provided with a driving portion at one end thereof, and the movable rod body can be provided with at least one abutting portion corresponding to the limiting portion, and the movable rod body can be axially movable only in the receiving groove. a radial locking device is not provided; and a fastening device is disposed between the handle and the movable rod body. When the movable rod body is movably disposed in the receiving groove, the fastening device is The relative position of the grip to the movable rod body is fixed in an adjustable manner. The retractable positioning wrench of claim 1, wherein the movable rod system is provided with a plurality of positioning slots in a spaced manner, and the locking device is configured to position the relative position of the handle and the movable rod. The retractable positioning wrench of claim 2, wherein the securing device comprises a control member and a positioning member, and the control member is movably disposed on a periphery of the handle and is movable along the grip Sliding in the axial direction of the handle, and having a snap position and a disengagement position, and the positioning member is movably disposed on a periphery of the handle, and when the control member is located at the buckle position, the positioning member is Embedding one of the positioning slots, the positioning member can move to the positioning slot when the control member is in the disengaged position. The retractable positioning wrench of claim 3, wherein the securing device further comprises an elastic member disposed between the control member and the handle, wherein the control member is normally oriented toward the handle The one end of the opening moves to form the snap position, and when the force is applied to the control member, the control member moves away from the handle at one end of the opening to form the disengaged position. The retractable positioning wrench of claim 1, further comprising a latch disposed in an elastic manner, the abutting portion being different from one end of the driving portion, and being at an inner edge of the receiving slot A one-way stop groove is provided, so that the movable rod body can move inside the accommodating groove and cannot escape the accommodating groove. The retractable positioning wrench of claim 4, wherein the securing device further comprises a resisting piece disposed between the control member and the periphery of the handle for the elastic member to serve as a stop Block the effect. The retractable positioning wrench of claim 3, wherein the periphery of the handle is provided with a through hole penetrating through the receiving groove and is provided for the positioning member. The telescopic positioning wrench of claim 1, wherein the contact surface of the abutting portion and the limiting portion is at least one plane. The retractable positioning wrench of claim 1, wherein the abutting portion is a flat surface, and the corresponding limiting portion is a flat surface. The retractable positioning wrench of claim 1, wherein the limiting portion is disposed on an inner wall of the receiving groove along an axial direction of the handle.