Torque wrench connecting device

By designing a torque wrench coupling device including an adjustment mechanism, a limiting mechanism and a return spring, the problems of fixed torque wrench length and poor stability of the clamp in the prior art are solved, and flexible adjustment of the connecting rod length and improved stability of the device are achieved.

CN222920446UActive Publication Date: 2025-05-30SHANGHAI ELECTRIC POWER SUPERVISION CONSULTATION CO LTD
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Patent Information

Application Number
CN202421910703.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2025-05-30
Estimated Expiration
2034-08-08

AI Technical Summary

Technical Problem

The length of the existing adjustable torque wrench for buildings is fixed, and the force arm cannot be lengthened, which makes it difficult to manually twist, and the stability of the plug-in of the clamp is poor, which is easy to loosen and affects use.

Method used

A torque wrench coupling device is designed, including a torque wrench handle, an adjustment mechanism, a connecting sleeve rod, a limiting mechanism and a return spring. By pulling the connecting rod, the adjustment mechanism can adjust the length of the connecting rod and maintain the limit through the limit slider and the moving stud. Resetting the connecting rod is assisted with using a return spring to improve stability.

Benefits of technology

The flexible adjustment of the length of the connecting rod is achieved, the efficiency of the force arm is improved, the laboriousness of manual twisting is reduced, and the stability and reliability of the device are improved through the coordination of the limiting mechanism and the return spring.

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Abstract

The utility model discloses a torque wrench connecting device which comprises a torque wrench handle, the end of the torque wrench handle is fixedly connected with one end of an adjusting mechanism, the other end of the adjusting mechanism is fixedly connected with a wrench head, the surface of the adjusting mechanism is sleeved with a connecting sleeve rod, and the surface of the connecting sleeve rod abuts against a limiting mechanism. The inner wall of the connecting sleeve rod is fixedly connected with a partition plate, and the partition plate is connected with the adjusting mechanism through a reset spring. By pulling the connecting rod, the connecting rod can drive the limiting sliding block and the movable stud to slide in the connecting sleeve rod, the overall length of the connecting rod can be effectively and conveniently adjusted, the connecting rod can be kept limited in the connecting sleeve rod through the limiting sliding block and the movable stud, the adjusting screw sleeve is rotated, the pressing disc can extrude the driving block, and the pressing disc can press the driving block. And the anti-skid rubber pads and the surfaces of the connecting sleeve rods are mutually extruded, so that the effect of conveniently limiting and fixing the two groups of connecting rods can be achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of torque wrenches, in particular to a torque wrench connection device. Background Art

[0002] A torque wrench, also known as a torque adjustable wrench, is a special wrench dedicated to applications that require precise control of torque. Its main function is to allow the operator to apply a specific torque value to ensure that the tightening degree of screws and bolts meets the requirements, thus avoiding problems caused by insufficient or excessive torque.

[0003] For example, the patent publication number is CN217943174U, a building adjustable torque wrench, which relates to the construction field. The building adjustable torque wrench includes a first rod body, a sleeve is fixedly connected to the left end of the first rod body, a second rod body is lapped on the right end of the first rod body, a telescopic groove is opened at the right end of the first rod body, a telescopic rod is movably connected inside the telescopic groove, the right end of the telescopic rod is fixedly connected to the left end of the second rod body, and a spring groove is opened at the left end of the telescopic rod. This building adjustable torque wrench, through the mutual cooperation of the telescopic groove, the telescopic rod, the spring groove and the first spring, can extend the first rod body and the second rod body with each other, so as to lengthen the force arm, thereby making it more labor-saving when screwing the nut, solving the problem that the length of the existing building adjustable torque wrench is fixed and the force arm cannot be lengthened, so it will be very laborious when manually screwing. However, when the above torque wrench is in use, the two groups of rod bodies are limited by the cooperation of the spring and the clamping block in a clamping connection manner. Since the stability of the clamping block insertion method is poor, it is easy to loosen during use, affecting the use of the wrench. Therefore, we propose a torque wrench connection device to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a torque wrench connection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A torque wrench connection device includes a torque wrench handle, the end of the torque wrench handle is fixedly connected to one end of an adjustment mechanism, and the other end of the adjustment mechanism is fixedly connected to a wrench head. A connecting sleeve rod is sleeved on the surface of the adjustment mechanism, and a limiting mechanism abuts against the surface of the connecting sleeve rod. A partition plate is fixedly connected to the inner wall of the connecting sleeve rod, and the partition plate is connected to the adjustment mechanism through a return spring.

[0007] Preferably, the adjusting mechanism includes a connecting rod. The torque wrench handle and the wrench head are respectively fixedly connected to the connecting rod, and grooves are formed at the ends of the connecting rod. A return spring is welded to the inner wall of the groove, and the return spring can assist the two groups of connecting rods to reset.

[0008] Preferably, the connecting rod is cylindrical, and a limiting slider is fixedly connected to the end of the connecting rod. The cross-section of the connecting sleeve rod is circular, and a strip-shaped through groove adapted to the limiting slider is formed on the surface of the connecting sleeve rod. By sliding the limiting slider along the strip-shaped through groove, the connecting rod can be limited and guided.

[0009] Preferably, a moving stud is fixedly connected above the end of the connecting rod. A strip-shaped through groove adapted to the moving stud is formed on the surface of the connecting sleeve rod. The position of the connecting rod can be conveniently adjusted through the moving stud.

[0010] Preferably, the limiting mechanism includes an adjusting screw sleeve. The adjusting screw sleeve is threadedly sleeved on the surface of the moving stud, and a pressing disc is fixedly connected below the adjusting screw sleeve. A driving block is sleeved on the surface of the moving stud, and an anti-slip rubber pad is glued below the driving block. By driving the anti-slip rubber pad to fit with the surface of the connecting sleeve rod through the driving block, the connecting rod and the connecting sleeve rod can be conveniently limited.

[0011] Preferably, a guiding slider is fixedly connected to the inner wall of the driving block. A sliding groove adapted to the guiding slider is formed on the surface of the moving stud. The guiding slider can limit and guide the movement of the driving block.

[0012] Preferably, the lower surface of the anti-slip rubber pad is arc-shaped, and anti-slip lines are formed on the lower surface of the anti-slip rubber pad. The surface arc of the connecting sleeve rod is the same as the arc of the lower surface of the anti-slip rubber pad. By setting the lower surface of the anti-slip rubber pad to be arc-shaped, the anti-slip rubber pad can be clamped on the surface of the connecting sleeve rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By pulling the connecting rod, the connecting rod can drive the limiting slider and the moving stud to slide inside the connecting sleeve rod, effectively facilitating the adjustment of the overall length of the connecting rod. And through the limiting slider and the moving stud, the connecting rod can be kept limited inside the connecting sleeve rod. By rotating the adjusting screw sleeve, the pressing disc can squeeze the driving block, so that the anti-slip rubber pad is squeezed against the surface of the connecting sleeve rod, which can play a role in conveniently limiting and fixing the two groups of connecting rods.

[0015] 2. By pulling the connecting rod, the reset spring can be stretched, effectively facilitating the retraction and reset of the auxiliary connecting rod. At the same time, by driving the driving block to drive the guiding slider to slide along the chute opened on the surface of the moving stud, it can play a role in limiting and guiding the driving block, making the driving block drive the anti-slip rubber pad to fit the surface of the connecting sleeve rod. Moreover, the anti-slip lines opened on the surface of the anti-slip rubber pad can increase the surface friction of the anti-slip rubber pad and improve the stability of extrusion and limitation. Description of the Drawings

[0016] Figure 1 Stereoscopic schematic diagram of a torque wrench connection device proposed by the present utility model;

[0017] Figure 2 is Figure 1 Stereoscopic sectional schematic diagram of the connecting sleeve rod and the partition plate structure in

[0018] Figure 3 is Figure 1 Stereoscopic sectional schematic diagram of the connecting rod and the limit slider structure in

[0019] Figure 4 is Figure 1 Stereoscopic sectional schematic diagram of the driving block and the anti-slip rubber pad structure in

[0020] In the figure: 1. Torque wrench handle;

[0021] 2. Adjusting mechanism; 21. Connecting rod; 22. Moving stud; 23. Limit slider;

[0022] 3. Wrench head; 4. Connecting sleeve rod;

[0023] 5. Limiting mechanism; 51. Adjusting screw sleeve; 52. Pressing disc; 53. Driving block; 54. Anti-slip rubber pad; 55. Guiding slider;

[0024] 6. Partition plate; 7. Reset spring. Detailed Implementation Modes

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Referring to Figures 1-4, A torque wrench connection device, including a torque wrench handle 1. The end of the torque wrench handle 1 is fixedly connected to one end of an adjusting mechanism 2, and a wrench head 3 is fixedly connected to the other end of the adjusting mechanism 2. A connecting sleeve rod 4 is sleeved on the surface of the adjusting mechanism 2, and a limiting mechanism 5 abuts against the surface of the connecting sleeve rod 4. A partition plate 6 is fixedly connected to the inner wall of the connecting sleeve rod 4, and the partition plate 6 is connected to the adjusting mechanism 2 through a return spring 7. The partition plate 6 can separate the functions of the two groups of adjusting mechanisms 2.

[0027] Further, referring to Figure 2 and Figure 3 It can be known that the adjusting mechanism 2 includes a connecting rod 21. The torque wrench handle 1 and the wrench head 3 are respectively fixedly connected to the connecting rod 21, and grooves are opened at the ends of the connecting rod 21. A return spring 7 is welded to the inner wall of the groove. By the grooves opened at the ends of the connecting rod 21, the function of accommodating the return spring 7 can be achieved.

[0028] Further, referring to Figure 2 and Figure 3 It can be known that the connecting rod 21 is arranged in a cylindrical shape, and a limiting slider 23 is fixedly connected to the end of the connecting rod 21. The cross-section of the connecting sleeve rod 4 is arranged in an annular shape, and a strip-shaped through groove adapted to the limiting slider 23 is opened on the surface of the connecting sleeve rod 4. By moving the connecting rod 21 in the connecting sleeve rod 4, the limiting slider 23 can slide in the strip-shaped through groove, playing a role in limiting and guiding the movement of the connecting rod 21.

[0029] Further, referring to Figure 3 and Figure 4 It can be known that a moving stud 22 is fixedly connected above the end of the connecting rod 21. A strip-shaped through groove adapted to the moving stud 22 is opened on the surface of the connecting sleeve rod 4. By moving the moving stud 22 along the strip-shaped through groove, the length between the two groups of connecting rods 21 can be conveniently adjusted.

[0030] Further, referring to Figure 3 and Figure 4 It can be known that the limiting mechanism 5 includes an adjusting screw sleeve 51. The adjusting screw sleeve 51 is threadedly sleeved on the surface of the moving stud 22, and a pressing disc 52 is fixedly connected below the adjusting screw sleeve 51. A driving block 53 is sleeved on the surface of the moving stud 22, and an anti-slip rubber pad 54 is glued below the driving block 53. By rotating the adjusting screw sleeve 51, the adjusting screw sleeve 51 can drive the pressing disc 52 to move along the surface of the moving stud 22, facilitating the extrusion of the driving block 53.

[0031] Further, referring to Figure 3 and Figure 4It can be known that a guiding slider 55 is fixedly connected to the inner wall of the driving block 53. A sliding groove adapted to the guiding slider 55 is provided on the surface of the moving stud 22. By moving the driving block 53, the guiding slider 55 can slide along the sliding groove, playing a role in limiting and guiding the driving block 53.

[0032] Further, referring to Figure 3 and Figure 4 It can be known that the lower surface of the anti-slip rubber pad 54 is arc-shaped, and anti-slip lines are provided on the lower surface of the anti-slip rubber pad 54. The surface curvature of the connecting sleeve rod 4 is the same as the lower surface curvature of the anti-slip rubber pad 54. Through the anti-slip lines provided on the lower surface of the anti-slip rubber pad 54, the surface friction of the anti-slip rubber pad 54 can be increased.

[0033] Working principle: When the torque wrench handle 1 is in use in the present utility model, according to the attached Figure 1 and Figure 2 and Figure 3 and the attached Figure 4 , by rotating the adjusting sleeve 51, the pressing disc 52 can be moved away from the surface of the driving block 53. At this time, the driving block 53 can drive the anti-slip rubber pad 54 away from the surface of the connecting sleeve rod 4. Thus, when pulling the torque wrench handle 1 and the wrench head 3, the connecting rod 21 can drive the moving stud 22 and the limiting slider 23 to slide along the inside of the connecting sleeve rod 4. When the lengths of the torque wrench handle 1 and the wrench head 3 are adjusted appropriately, by rotating the adjusting sleeve 51, the pressing disc 52 can be pressed against the upper part of the driving block 53, so that the driving block 53 drives the anti-slip rubber pad 54 to abut against the surface of the connecting sleeve rod 4, facilitating the limitation between the connecting rod 21 and the connecting sleeve rod 4;

[0034] The above is the entire working principle of the present utility model.

[0035] In the present utility model, the installation methods, connection methods or setting methods of all the above-mentioned components are common mechanical methods, and the specific structures, models and coefficient indexes of all its components are its own technologies. As long as the beneficial effects can be achieved, they can be implemented, so no more details will be described.

[0036] The above embodiments are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

[0037] In the present utility model, unless otherwise stated, directional terms such as "up and down, left and right, front and back, inside and outside, vertical and horizontal" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation of the terms. At the same time, numerical terms such as "first", "second", and "third" do not represent specific quantities and orders, but are only used for name distinction. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device.

Claims

1. A torque wrench connection device, comprising a torque wrench handle (1), characterized in that: The end of the torque wrench handle (1) is fixedly connected to one end of the adjustment mechanism (2), the adjustment mechanism (2) comprises a connecting rod (21), the torque wrench handle (1) and the wrench head (3) are respectively fixedly connected to the connecting rod (21), and the end of the connecting rod (21) is provided with a groove, the inner wall of the groove is welded with a return spring (7), the upper part of the end of the connecting rod (21) is fixedly connected with a moving stud (22), the other end of the adjustment mechanism (2) is fixedly connected with the wrench head (3), and the surface of the adjustment mechanism (2) is sleeved with a connecting sleeve rod (4). The surface of the connecting sleeve rod (4) abuts against a limiting mechanism (5), the limiting mechanism (5) comprises an adjusting screw sleeve (51), the surface of the movable stud (22) is threadedly sleeved with the adjusting screw sleeve (51), and a pressing plate (52) is fixedly connected below the adjusting screw sleeve (51), the surface of the movable stud (22) is sleeved with a driving block (53), and a non-slip rubber pad (54) is glued below the driving block (53), and a partition plate (6) is fixedly connected to the inner wall of the connecting sleeve rod (4), and the partition plate (6) is connected to the adjusting mechanism (2) via a reset spring (7).

2. A torque wrench connection device according to claim 1, characterized in that: The connecting rod (21) is configured to be cylindrical, and the end of the connecting rod (21) is fixedly connected to the limit slider (23). The cross section of the connecting sleeve rod (4) is configured to be annular, and the surface of the connecting sleeve rod (4) is provided with a strip-shaped through groove that matches the limit slider (23).

3. A torque wrench connection device according to claim 1, characterized in that: The surface of the connecting sleeve rod (4) is provided with a strip-shaped through groove matched with the movable stud (22).

4. A torque wrench connection device according to claim 1, characterized in that: The inner wall of the driving block (53) is fixedly connected with a guide slide block (55), and the surface of the movable stud (22) is provided with a slide groove matched with the guide slide block (55).

5. A torque wrench connection device according to claim 1, characterized in that: The lower surface of the anti-skid rubber pad (54) is arranged in an arc shape, and the lower surface of the anti-skid rubber pad (54) is provided with anti-skid grooves, and the surface curvature of the connecting sleeve rod (4) is the same as the curvature of the lower surface of the anti-skid rubber pad (54).

Citation Information

Patent Citations

  • Adjustable torque wrench for building

    CN217943174U