Wrench for railway line maintenance

Abstract

The utility model relates to the technical field of railway maintenance, and discloses a railway line maintenance wrench which comprises a torque wrench body, a digital display screen is arranged in the middle of the upper end of the torque wrench body, a plurality of positioning grooves are formed in the lower end of the torque wrench body, and a shell is arranged on one side of the torque wrench body. A positioning rope is fixedly connected to the middle of an inner cavity of the shell, and the other end of the positioning rope is fixedly connected with one end of the torque wrench body. According to the technical scheme, the shell can be pulled to move rightwards so that the shell can be separated from the digital display screen, then the positioning protruding block is matched with the positioning groove, the position of the shell can be adjusted, the shell forms an extension arm of the torque wrench body, the torque wrench body can fasten a bolt conveniently, the labor-saving effect is achieved, and the labor-saving effect is achieved. And when the torque wrench is carried, the shell can cover the outer side of the digital display screen, so that the digital display screen is protected by the shell, and damage to the digital display screen in the carrying process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of railway maintenance, in particular to a wrench for railway line maintenance and repair. Background Art

[0002] Railway line maintenance is the repair and maintenance of roadbeds, tracks, etc. In railway line maintenance work, it is necessary to use wrenches to remove and install anchor bolts on rails, and the standard for railway bolt torque requirements In the railway field, the tightening degree of bolts is a very important part. Too low tightening degree may cause bolt loosening, vibration, damage and other problems, thus threatening the safety of trains and passengers.

[0003] When implementing this technical solution, there are at least the following defects: although the existing digital torque wrench can display the torque and ensure the tightening torque of the railway bolts, it is inconvenient to effectively protect the digital display screen, which makes the digital display screen very easy to be damaged during carrying, and it is urgently needed to be improved. Therefore, we propose a wrench for railway line maintenance and repair. Utility Model Content

[0004] The utility model aims to provide a wrench for railway line maintenance and repair, which solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wrench for railway line maintenance and repair, comprising a torque wrench body, a digital display screen is arranged in the middle of the upper end of the torque wrench body, a plurality of positioning grooves are provided at the lower end of the torque wrench body, a shell is arranged on one side of the torque wrench body, a positioning rope is fixedly connected to the middle of the inner cavity of the shell, the other end of the positioning rope is fixedly connected to one end of the torque wrench body, a fixing strip is arranged at the lower end of the inner cavity of the shell, a plurality of positioning protrusions are fixedly installed on the other side of the upper end of the fixing strip, a straight rod is fixedly installed on one end of the fixing strip, a through slot is provided on one side of the shell, and a spring is sleeved on the outer wall of the upper end of the straight rod.

[0006] By adopting the above technical solution, it is convenient to pull the shell to the right to separate the shell from the digital display screen, and then adjust the position of the shell by cooperating with the positioning protrusion and the positioning groove, so that the shell forms an extended arm of the torque wrench body, which further facilitates the torque wrench body to tighten the bolts and achieves a labor-saving effect. When the torque wrench is carried, the shell is pushed to the left, and the shell slides along the supporting wheel, so that the shell covers the outside of the digital display screen, so that the shell protects the digital display screen and reduces damage to the digital display screen during carrying.

[0007] Optionally, support wheels are fixedly mounted on both sides of one end of the torque wrench body, and the support wheels are in contact with the inner wall of the shell.

[0008] By adopting the above technical solution, the support wheels on the torque wrench body cooperate to ensure smooth movement of the shell.

[0009] Optionally, the positioning grooves are movably connected to the positioning protrusions, and the positioning grooves are equidistantly distributed.

[0010] By adopting the above technical solution, the housing can be limited by cooperating with the positioning groove and the positioning protrusion.

[0011] Optionally, the fixing strip is arranged on the rear side of the supporting wheel, and the supporting wheels are arranged symmetrically.

[0012] By adopting the above technical solution, the support wheel and the fixing bar can be prevented from getting in the way.

[0013] Optionally, the size of the straight rod is matched with the size of the through slot, and the straight rod is movably connected to the through slot.

[0014] By adopting the above technical solution, the straight rod cooperates with the through groove, thereby ensuring that the straight rod drives the fixing bar to move.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The technical solution of the present application can pull the shell to the right to separate the shell from the digital display screen through the torque wrench body, digital display screen, shell, support wheel, straight rod and positioning protrusion, and then adjust the position of the shell through the cooperation of the positioning protrusion and the positioning groove, so that the shell forms an extended arm of the torque wrench body, further facilitating the torque wrench body to tighten the bolts and achieving a labor-saving effect. When the torque wrench is carried, the shell can cover the outside of the digital display screen, so that the shell protects the digital display screen and reduces damage to the digital display screen during carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a wrench for railway line maintenance and repair according to the utility model;

[0019] Figure 2 The utility model is a schematic diagram of the partially enlarged structure of position A of a wrench for railway line maintenance and repair.

[0020] In the figure: 1. torque wrench body; 11. digital display screen; 12. positioning groove; 2. shell; 21. support wheel; 22. positioning rope; 23. fixing bar; 3. straight rod; 31. through groove; 32. spring; 4. positioning protrusion. DETAILED DESCRIPTION

[0021] See also Figure 1-2 The utility model provides a technical solution: a wrench for railway line maintenance and repair, including a torque wrench body 1, a digital display screen 11 is arranged in the middle of the upper end of the torque wrench body 1, which is convenient for displaying torque and ensuring the tightening effect of railway bolts, a plurality of positioning grooves 12 are arranged at the lower end of the torque wrench body 1, a shell 2 is arranged on one side of the torque wrench body 1, a positioning rope 22 is fixedly connected to the middle of the inner cavity of the shell 2, and the other end of the positioning rope 22 is fixedly connected to one end of the torque wrench body 1, so that the shell 2 can be matched with the positioning rope 22 to limit the position of the shell 2 and avoid the shell 2 and the torque wrench body 1 from coming off In the case of separation, a fixing strip 23 is provided at the lower end of the inner cavity of the shell 2, and a plurality of positioning protrusions 4 are fixedly installed on the other side of the upper end of the fixing strip 23, a straight rod 3 is fixedly installed at one end of the fixing strip 23, a through slot 31 is provided on one side of the shell 2, a spring 32 is sleeved on the outer wall of the upper end of the straight rod 3, the fixing strip 23 is arranged on the rear side of the supporting wheel 21, and the supporting wheel 21 is symmetrically arranged to avoid the situation where the supporting wheel 21 and the fixing strip 23 are in the way, the size of the straight rod 3 is adapted to the size of the through slot 31, and the straight rod 3 is movably connected to the through slot 31, and the straight rod 3 cooperates with the through slot 31, so as to ensure that the straight rod 3 drives the fixing strip 23 to move.

[0022] Support wheels 21 are fixedly mounted on both sides of one end of the torque wrench body 1, and the support wheels 21 fit with the inner wall of the shell 2. The support wheels 21 on the torque wrench body 1 cooperate to ensure smooth movement of the shell 2.

[0023] The positioning grooves 12 are movably connected to the positioning protrusions 4 , and the positioning grooves 12 are equidistantly distributed, so that the housing 2 can be limited by the positioning grooves 12 and the positioning protrusions 4 .

[0024] When in use, first pull the shell body 2 to the right to separate the shell body 2 from the digital display screen 11, then press the straight rod 3 to move downward, and at the same time compress the spring 32 to separate the positioning protrusion 4 on the fixing bar 23 from the positioning groove 12. When the shell body 2 is pulled to a suitable position, the positioning protrusion 4 cooperates with the positioning groove 12 to adjust the position of the shell body 2, so that the shell body 2 forms an extended arm of the torque wrench body 1, which further facilitates the torque wrench body 1 to tighten the bolts and achieves a labor-saving effect. When the torque wrench is carried, the shell body 2 is pushed to the left, and the shell body 2 slides along the supporting wheel 21, so that the shell body 2 covers the outside of the digital display screen 11, so that the shell body 2 protects the digital display screen 11 and reduces damage to the digital display screen 11 during carrying.

Claims

1. A wrench for railway line maintenance and repair, comprising a torque wrench body (1), characterized in that: A digital display screen (11) is provided at the middle of the upper end of the torque wrench body (1), a plurality of positioning grooves (12) are provided at the lower end of the torque wrench body (1), a shell (2) is provided on one side of the torque wrench body (1), a positioning rope (22) is fixedly connected to the middle of the inner cavity of the shell (2), the other end of the positioning rope (22) is fixedly connected to one end of the torque wrench body (1), a fixing strip (23) is provided at the lower end of the inner cavity of the shell (2), a plurality of positioning protrusions (4) are fixedly installed on the other side of the upper end of the fixing strip (23), a straight rod (3) is fixedly installed on one end of the fixing strip (23), a through groove (31) is provided on one side of the shell (2), and a spring (32) is sleeved on the outer wall of the upper end of the straight rod (3).

2. A railway line maintenance wrench according to claim 1, characterized in that: Support wheels (21) are fixedly mounted on both sides of one end of the torque wrench body (1), and the support wheels (21) are in contact with the inner wall of the shell (2).

3. A railway line maintenance wrench according to claim 2, characterized in that: The positioning grooves (12) are movably connected to the positioning protrusions (4), and the positioning grooves (12) are equidistantly distributed.

4. A railway line maintenance wrench according to claim 3, characterized in that: The fixing strip (23) is arranged on the rear side of the supporting wheel (21), and the supporting wheel (21) is symmetrically arranged.

5. A railway line maintenance wrench according to claim 4, characterized in that: The size of the straight rod (3) matches the size of the through slot (31), and the straight rod (3) is movably connected to the through slot (31).

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