Wrench for detecting residual torque

Abstract

The utility model relates to the field of torque wrenches, and discloses a wrench for detecting residual torque, which comprises a wrench handle, a wrench head is arranged at the upper end of the wrench handle, a battery bin is sleeved at the lower end of the wrench handle, a handle is arranged outside the battery bin, and elastic sheets are arranged at the lower ends of the outer walls of the two sides of the battery bin. A top block is fixedly connected to the middle of the outer wall of the side, away from the battery bin, of the elastic piece, and a plurality of fixing holes are formed in the inner walls of the two sides of the handle. Compared with a conventional wrench, the wrench provided by the utility model is provided with the handle, when the length of the detection wrench needs to be prolonged, the handle can be pulled to move the handle, and then the elastic sheet drives the top block to move, so that the top block is clamped into different fixing holes; therefore, the position of the extended handle is fixed, and the extended detection wrench can extend into a small gap to detect the residual torque of a bolt and other objects.

Description

Technical Field

[0001] The utility model relates to the field of torque wrenches, in particular to a wrench for residual torque detection. Background Art

[0002] Residual torque detection refers to measuring the torque value again to determine whether there is residual torque after the bolt or nut has been tightened to the specified torque value. This detection is usually used to ensure that the bolt or nut has been properly tightened to prevent loosening or thread damage. For residual torque detection, a specially designed torque wrench is usually required, also called a residual torque detection wrench. This wrench has higher precision and sensitivity and can accurately measure small torque changes.

[0003] The length of most existing wrench handles cannot be effectively adjusted. Therefore, when using a torque detection wrench to detect residual torque on bolts and other items in small gaps, most of the wrench handles may be too short to effectively detect residual torque on bolts and other items in the gaps. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the proposed residual torque detection wrench has an elastic sheet made of aluminum alloy, which has good durability and elasticity, and can ensure long-term reliable use. The outer wall of the handle is provided with a rubber pad, which can provide a good grip and comfort.

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

[0006] A wrench for residual torque detection comprises a wrench handle, wherein a wrench head is arranged at the upper end of the wrench handle, a battery compartment is sleeved at the lower end of the wrench handle, a handle is arranged outside the battery compartment, elastic sheets are arranged at the lower ends of the outer walls on both sides of the battery compartment, a top block is fixedly connected to the middle of the outer wall of the elastic sheet away from the battery compartment, a plurality of fixing holes are opened on the inner walls on both sides of the handle, an electrical box is sleeved on the shaft of the wrench handle, and a threaded cover is threadedly connected to the lower surface of the handle;

[0007] Through the above technical solution, the wrench for residual torque detection has a reasonable structure, complete functions, convenient operation, good stability and durability, and can improve the efficiency and accuracy of torque detection.

[0008] Furthermore, a display screen is provided on one side outer wall of the electrical box;

[0009] Through the above technical solution, a display screen is provided on one side outer wall of the electrical box, so that the wrench can be better controlled.

[0010] Furthermore, the top block is snap-fitted with the fixing hole;

[0011] Through the above technical solution, the position of the handle can be better fixed by the top block being engaged with the fixing hole.

[0012] Furthermore, the elastic sheet is made of aluminum alloy;

[0013] Through the above technical solution, the elastic sheet is made of aluminum alloy, so that the service life of the elastic sheet can be effectively extended.

[0014] Furthermore, the outer wall of the handle is provided with a rubber pad;

[0015] Through the above technical solution, the rubber pad is provided on the outer wall of the handle, thereby effectively improving the comfort when holding.

[0016] Furthermore, a battery panel is provided inside the battery compartment;

[0017] Through the above technical solution, a battery panel is arranged inside the battery compartment, so as to provide better power support for the wrench.

[0018] Furthermore, the outer wall of the battery compartment is provided with a storage slot;

[0019] Through the above technical solution, a storage groove is provided on the outer wall of the battery compartment, so that the top block can be moved better.

[0020] The utility model has the following beneficial effects:

[0021] 1. Compared with the existing wrenches, the residual torque detection wrench proposed by the utility model has a handle. When it is necessary to extend the length of the detection wrench, the handle can be pulled to move the handle, and then the top block is driven to move by the elastic sheet, so that the top block is inserted into different fixing holes, thereby fixing the position of the extended handle, so that the extended detection wrench can be extended into a small gap to perform residual torque detection on objects such as bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axonometric diagram of the wrench for residual torque detection proposed by the utility model;

[0023] Figure 2 This is an exploded view of the wrench for residual torque detection proposed by the utility model;

[0024] Figure 3 It is a partial cross-sectional view of the wrench for residual torque detection proposed by the utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Wrench handle; 2. Wrench head; 3. Fixing hole; 4. Threaded cover; 5. Handle; 6. Display screen; 7. Electrical box; 8. Battery panel; 9. Battery compartment; 10. Storage slot; 11. Elastic sheet; 12. Top block; 13. Rubber pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-4 , an embodiment provided by the utility model:

[0030] A wrench for residual torque detection comprises a wrench handle 1, a wrench head 2 is arranged at the upper end of the wrench handle 1, a battery compartment 9 is sleeved at the lower end of the wrench handle 1, a handle 5 is arranged outside the battery compartment 9, elastic sheets 11 are arranged at the lower ends of the outer walls on both sides of the battery compartment 9, a top block 12 is fixedly connected to the middle of the outer wall of the elastic sheet 11 away from the battery compartment 9, a plurality of fixing holes 3 are opened on the inner walls on both sides of the handle 5, an electrical box 7 is sleeved on the shaft of the wrench handle 1, and a threaded cover 4 is threadedly connected to the lower surface of the handle 5;

[0031] The wrench for residual torque detection has reasonable structure, complete functions, convenient operation, good stability and durability, and can improve the efficiency and accuracy of torque detection.

[0032] A display screen 6 is provided on one side outer wall of the electrical box 7, and the display screen 6 is provided on one side outer wall of the electrical box 7, so that the wrench can be better controlled. The top block 12 is snap-fitted with the fixing hole 3, and the top block 12 is snap-fitted with the fixing hole 3, so that the position of the handle 5 can be better fixed. The elastic sheet 11 is made of aluminum alloy, and the elastic sheet 11 is made of aluminum alloy, so that the service life of the elastic sheet 11 can be effectively extended.

[0033] The outer wall of the handle 5 is provided with a rubber pad 13, which can effectively improve the comfort of holding. The battery compartment 9 is provided with a battery panel 8, which can better provide power support for the wrench. The outer wall of the battery compartment 9 is provided with a storage groove 10, which can better enable the top block 12 to move.

[0034] Working principle: When in use, different types of torque wrench heads are connected to the wrench head 2, which is a quick-connect structure of the wrench in the prior art, and then the torque wrench is calibrated to ensure that the torque detection wrench has been calibrated and is in normal working condition. Then, according to the required torque value, it is set by adjusting the display screen 6 device on the torque detection wrench, and the selected wrench head is installed on the torque detection wrench to ensure that it is firmly installed. The torque detection wrench is connected to the workpiece that needs to be torque tested, and the torque is applied by twisting the torque detection wrench until the set torque value is reached. According to the indicator or display screen 6 on the torque detection wrench, it is confirmed whether the actual applied torque value is the same as the set value. The test results are consistent, including the actual torque value applied and relevant information of the workpiece. When the length of the wrench needs to be adjusted during use, the handle 5 is moved by pulling the handle 5, and then the elastic sheet 11 drives the top block 12 to move, so that the top block 12 is stuck in different fixing holes 3, so that the position of the extended handle 5 is fixed, so that the extended detection wrench can be extended into a small gap to perform residual torque detection on objects such as bolts. When the handle 5 needs to be retracted after the detection is completed, the top block 12 is pressed so that the top block 12 compresses the elastic sheet 11, so that the top block 12 is moved out from the inside of the fixing hole 3, thereby resetting the handle 5.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wrench for residual torque detection, comprising a wrench handle (1), characterized in that: The upper end of the wrench handle (1) is provided with a wrench head (2), the lower end of the wrench handle (1) is sleeved with a battery compartment (9), a handle (5) is provided outside the battery compartment (9), the lower ends of the outer walls on both sides of the battery compartment (9) are provided with elastic sheets (11), the middle part of the outer wall of the elastic sheet (11) away from the battery compartment (9) is fixedly connected to a top block (12), the inner walls on both sides of the handle (5) are provided with a plurality of fixing holes (3), the shaft of the wrench handle (1) is sleeved with an electrical box (7), and the lower surface of the handle (5) is threadedly connected to a threaded cover (4).

2. The residual torque detection wrench according to claim 1, characterized in that: A display screen (6) is provided on one side outer wall of the electrical box (7).

3. The residual torque detection wrench according to claim 1, characterized in that: The top block (12) is snap-fitted with the fixing hole (3).

4. The residual torque detection wrench according to claim 1, characterized in that: The elastic sheet (11) is made of aluminum alloy.

5. The residual torque detection wrench according to claim 1, characterized in that: The outer wall of the handle (5) is sleeved with a rubber pad (13).

6. The residual torque detection wrench according to claim 1, characterized in that: A battery panel (8) is arranged inside the battery compartment (9).

7. The residual torque detection wrench according to claim 1, characterized in that: The outer wall of the battery compartment (9) is provided with a storage groove (10).

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