CN219113922U

CN219113922U - Screw torque testing tool

Info

Publication number: CN219113922U
Application number: CN202223014038.3U
Authority: CN
Inventors: 刘国钦; 吴锦益
Original assignee: Taicang Wanmeng Hardware Products Co ltd
Current assignee: Taicang Wanmeng Hardware Products Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-06-02
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a screw torque testing tool, which relates to the technical field of screw testing and comprises a handle, wherein a connector is fixed on the left side of the handle, the front surface of the connector is fixed with a connecting shaft, the surface of the connecting shaft is rotationally connected with a connecting sleeve, a switching device is arranged in the connecting shaft and on the inner wall of the connecting sleeve, and the switching device comprises: the telescopic block is connected with the inner wall of the connecting shaft in a sliding manner; the spring, the feeler lever, the regulation hole, the connector is carved with the scale mark with the surface of adapter sleeve. The connecting sleeve is rotated by hand to drive the adjusting hole to rotate, the six telescopic blocks form a proper size to clamp the screw through the switching device, so that the torque wrench can switch different types to deal with different screws, when the torque wrench is not used, the scales marked on the connecting sleeve and the connecting head are observed, the connecting sleeve is twisted to be adjusted to the maximum type, the metal fatigue of the spring is reduced, and the torque wrench is convenient for a user to intuitively operate.

Description

Screw torque testing tool

Technical Field

The utility model relates to the technical field of screw testing, in particular to a screw torque testing tool.

Background

The screw is a tool for gradually fastening a machine part by utilizing the physical and mathematical principles of the inclined plane circular rotation and friction force of an object, a common screw manufacturer can detect the quality aspect of the screw before leaving a factory, a base of a screw torque testing machine is locked on a table top and fixed, then a torque tool (selected according to the pitch of a tested screw) is put into a vice, then all tested screws are lightly put into 2-3 teeth, then a center scribing line on the base of the torque table is aligned with the center on the tool, the tool is fixed by rotating a clamping handle, a screwdriver head joint part is put into a height adjusting disc lower end switching sleeve, a screwdriver head matched with the testing screw head is selected and put into a screw head switching part, the height is adjusted to a low point by using the height adjusting disc, the torque wrench is put into the upper end of the height adjusting disc, and is rotated with even force until the screw is broken, or until the screw is twisted to a bearable torque designed by the screw, if the screw is not broken, the screw is qualified.

The torque wrench is needed to be used in the screw torque testing process, such as a screw torque testing clamp disclosed by publication No. CN208930084U, the torque wrench penetrates through the accommodating cavity, then the jack screw is screwed down, the torque wrench is fixed, the strength of the torque wrench is enhanced, and the torque wrench is effectively prevented from breaking in the torque testing process.

However, in the use process, different types of torque wrenches are needed for different types of screws, different types of wrenches are needed to be switched in the working process, a certain type of wrenches can be placed at one position by hand in the operation process, then the place for placing the wrenches is forgotten due to working, the wrenches are needed to be switched, the wrenches are needed to be searched, and the operation is very inconvenient,

disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a screw torque testing tool, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a screw torque testing tool, includes the handle, the left side of handle is fixed with the connector, the front and the connecting axle of connector are fixed, the surface and the adapter sleeve rotation of connecting axle are connected, be provided with auto-change over device on the inside of connecting axle and the inner wall of adapter sleeve, auto-change over device includes:

the telescopic block is connected with the inner wall of the connecting shaft in a sliding manner;

one end of the spring is fixed with the inner wall of the connecting shaft, and one end of the spring far away from the connecting shaft is fixed with the telescopic block;

the top of the telescopic block is fixed with the feeler lever;

the adjusting hole is formed in the inner wall of the connecting sleeve, the adjusting hole is driven to rotate by rotating the connecting sleeve by hands, the adjusting hole drives the feeler lever to move, the feeler lever drives the telescopic block to move, the spring pulls the telescopic block, the telescopic block pulls the feeler lever, the feeler lever can be tightly attached to the adjusting hole, when the feeler lever reaches the designated position of the adjusting hole, the six telescopic blocks form a proper size to clamp screws, and the torque wrench is used for switching different models to correspond to different screws.

Preferably, a rubber pad is fixed on the surface of the handle.

Preferably, the surfaces of the connecting head and the connecting sleeve are marked with scale marks, when the connecting sleeve is not used, scales marked on the connecting sleeve and the connecting head are observed, the connecting sleeve is twisted to be adjusted to the maximum model, so that metal fatigue of the spring is reduced, and the user can conveniently and intuitively operate the connecting sleeve.

Preferably, the number of the switching devices is six, and six switching devices are uniformly arranged in a circumference.

Preferably, the top of the feeler lever is hemispherical.

Preferably, the adjusting hole is formed by three arc grooves.

(III) beneficial effects

The utility model provides a screw torque testing tool. The beneficial effects are as follows:

(1) This screw torque testing tool, this screw torque testing tool drives the regulation hole with the hand and rotates the adapter sleeve, and the regulation hole drives the feeler lever and removes, and the feeler lever drives flexible piece and removes, and spring pulling flexible piece, flexible piece pulling feeler lever for the feeler lever can closely laminate with the regulation hole, and when the feeler lever arrived the position that the regulation hole appointed, six flexible pieces formed suitable size and can press from both sides tight screw, realized that torque spanner switches different models in order to deal with different screws.

(2) When the screw torque testing tool is not used, scales marked on the connecting sleeve and the connecting head are observed, the connecting sleeve is twisted to be adjusted to the maximum model, so that metal fatigue of the spring is reduced, and the user can conveniently and intuitively operate the screw torque testing tool.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the front view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3B according to the present utility model.

In the figure: 1. a handle; 2. a connector; 3. a connecting shaft; 4. connecting sleeves; 5. a switching device; 501. a telescopic block; 502. a spring; 503. a feeler lever; 504. and adjusting the hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution for a screw torque testing tool: the utility model provides a screw torque testing tool, includes handle 1, and handle 1's left side is fixed with connector 2, and connector 2's front is fixed with connecting axle 3, and connecting axle 3's surface is connected with adapter sleeve 4 rotation, is provided with shifter 5 on connecting axle 3's inside and the inner wall of adapter sleeve 4, and shifter 5 includes: the telescopic block 501, the telescopic block 501 is connected with the inner wall of the connecting shaft 3 in a sliding way; a spring 502, wherein one end of the spring 502 is fixed with the inner wall of the connecting shaft 3, and one end of the spring 502 away from the connecting shaft 3 is fixed with the telescopic block 501; a feeler lever 503, the top of the telescopic block 501 being fixed to the feeler lever 503; the adjusting hole 504 is formed in the inner wall of the connecting sleeve 4, the connecting sleeve 4 is rotated by hands to drive the adjusting hole 504 to rotate, the adjusting hole 504 drives the feeler lever 503 to move, the feeler lever 503 drives the telescopic block 501 to move, the spring 502 pulls the telescopic block 501, the telescopic block 501 pulls the feeler lever 503, the feeler lever 503 can be tightly attached to the adjusting hole 504, when the feeler lever 503 reaches the position appointed by the adjusting hole 504, the six telescopic blocks 501 form proper size to clamp screws, different types of torque wrenches are switched to deal with different screws, the surface of the handle 1 is fixed with a rubber pad, scale marks are engraved on the surfaces of the connecting sleeve 2 and the connecting sleeve 4, when the torque wrench is not used, scales engraved on the connecting sleeve 4 and the connecting sleeve 2 are observed, the connecting sleeve 4 is twisted to be adjusted to the largest type, so that metal fatigue of the spring 502 is reduced, visual operation of a user is facilitated, the number of the switching devices 5 is six, the six switching devices 5 are uniformly arranged in circumference, the top of the feeler lever 503 is hemispherical, and the adjusting hole 504 is formed by three circular arc grooves.

When the torque wrench is in use (or used), the handle 1 is the handle 1 of the torque wrench, the torque force of the torque wrench can be displayed, the connecting sleeve 4 is rotated by hand to drive the adjusting hole 504 to rotate, the adjusting hole 504 drives the feeler lever 503 to move, the feeler lever 503 drives the telescopic block 501 to move, the spring 502 pulls the telescopic block 501, the telescopic block 501 pulls the feeler lever 503, the feeler lever 503 can be tightly attached to the adjusting hole 504, and when the feeler lever 503 reaches the position appointed by the adjusting hole 504, the six telescopic blocks 501 form a proper size to clamp screws, so that the torque wrench can be switched between different models to cope with different screws;

when not in use, the scales marked on the connecting sleeve 4 and the connecting head 2 are observed, and the connecting sleeve 4 is twisted to be adjusted to the maximum model, so that the metal fatigue of the spring 502 is reduced, and the intuitive operation of a user is facilitated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Screw torque testing tool, including handle (1), its characterized in that: the left side of handle (1) is fixed with connector (2), the front of connector (2) is fixed with connecting axle (3), the surface of connecting axle (3) is connected with adapter sleeve (4) rotation, be provided with auto-change over device (5) on the inside of connecting axle (3) and the inner wall of adapter sleeve (4), auto-change over device (5) include:

the telescopic block (501) is connected with the inner wall of the connecting shaft (3) in a sliding manner;

the spring (502), one end of the spring (502) is fixed with the inner wall of the connecting shaft (3), and one end of the spring (502) far away from the connecting shaft (3) is fixed with the telescopic block (501);

a feeler lever (503), the top of the telescopic block (501) is fixed with the feeler lever (503);

and the inner wall of the connecting sleeve (4) is provided with an adjusting hole (504).

2. A screw torque testing tool according to claim 1, wherein: a rubber pad is fixed on the surface of the handle (1).

3. A screw torque testing tool according to claim 1, wherein: the surfaces of the connector (2) and the connecting sleeve (4) are carved with scale marks.

4. A screw torque testing tool according to claim 1, wherein: the number of the switching devices (5) is six, and the six switching devices (5) are uniformly arranged in a circumference.

5. A screw torque testing tool according to claim 1, wherein: the top of the feeler lever (503) is hemispherical.

6. A screw torque testing tool according to claim 1, wherein: the adjusting hole (504) is formed by three arc grooves.