U-shaped pin disassembling and assembling tool for flexible contact network positioning wire clamp

Abstract

The utility model discloses a U-shaped pin dismounting tool for a flexible contact network positioning wire clamp, which belongs to the technical field of dismounting tools, and comprises a hammer head, the hammer head comprises a first hammer head and a second hammer head, the upper surface of the first hammer head is an inclined plane, and the upper surface of the second hammer head is provided with two bending holes; a grip is arranged at one end of the second hammer head, and an ejection piece is arranged at one end of the grip. The U-shaped pin can be disassembled and assembled, the U-shaped pin is prevented from being damaged, and the end part of the U-shaped pin is prevented from being broken; it is ensured that the U-shaped pin is tightly attached to the positioning wire clamp, and then pantograph-catenary faults are avoided; even if fracture occurs, the fractured part can be taken out quickly, and the disassembly and assembly efficiency is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly and assembly tools, specifically relating to a U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The flexible contact wire support and positioning device includes U-shaped pins, positioners, supports, positioning clamps, etc., and its function is to ensure that the contact wire is always within the working range of the pantograph carbon sliding plate.

[0004] The U-pin, a crucial component for securing the positioning clamp and positioner and preventing the positioner from detaching, is often damaged during routine maintenance due to the lack of specialized tools for its installation and removal. When workers use wire cutters to bend the end of the U-pin upwards, the main body of the pin is damaged, and the positioning clamp may also be damaged if not handled carefully. Furthermore, during installation, the U-pin may not fit tightly against the positioning clamp. Over time, this can easily lead to the positioner separating from the positioning clamp during operation, causing pantograph-catenary malfunctions. During removal, the end of the U-pin may break, causing it to jam against the positioning clamp. Without specialized tools, the broken part is extremely difficult to remove. Currently, the lack of specialized tools for installation and removal results in low work efficiency and severe damage to the U-pin itself. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a U-shaped pin disassembly and assembly tool for flexible contact wire positioning clamps. This tool enables the disassembly and installation of U-shaped pins while avoiding damage to the U-shaped pin body and preventing breakage at the end of the U-shaped pin. It ensures that the U-shaped pin locks the positioning clamp and the positioner, preventing the positioner from being pulled out and avoiding pantograph-catenary faults. Even if the U-shaped pin breaks, the broken part can be quickly removed, ensuring efficient disassembly and assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for disassembling and assembling a U-shaped pin of a flexible contact wire positioning clamp includes a hammer head, which includes a first hammer head and a second hammer head. The upper surface of the first hammer head is inclined, and the upper surface of the second hammer head is provided with two bending holes. A handle is provided at one end of the second hammer head, and an ejector is provided at one end of the handle.

[0008] Furthermore, the first hammerhead and the second hammerhead are an integrated structure.

[0009] Furthermore, the side and lower surface of the first hammer head are both flat.

[0010] Furthermore, the slope of the first hammerhead is 60°.

[0011] Furthermore, one end of the grip is fixedly connected to the lower surface of the second hammerhead.

[0012] Furthermore, the other end of the grip is fixedly connected to the ejector.

[0013] Furthermore, the ejector is a cylindrical structure, and the dimensions of the ejector match the dimensions of the U-shaped pin body.

[0014] Furthermore, the two bent holes are symmetrically arranged with the circular hole as the center.

[0015] Furthermore, the diameter of the two bent holes matches the size of the U-shaped pin body.

[0016] Furthermore, a through-hole is provided at the lower end of the two bent holes.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] This invention features a first hammer and a second hammer. During installation, the second hammer strikes one end of the U-shaped pin, causing it to enter the mounting hole on the positioning clamp. The first hammer then strikes again to ensure the U-shaped pin is firmly attached to the clamp, preventing pantograph-catenary malfunctions. Next, the tail of the U-shaped pin is inserted into the bending hole, and the handle is rotated to bend the tail upwards by 60°, completing the installation. For disassembly, the tail of the U-shaped pin is inserted into the bending hole, and the handle is rotated to straighten it. The end of the second hammer strikes the U-shaped pin body, aligning its tail end parallel to the circular hole in the positioning clamp. The ejector tool then pushes the U-shaped pin completely out of the clamp's circular hole, completing the disassembly. This design enables rapid disassembly and installation of the U-shaped pin, preventing damage and breakage at the end.

[0019] This utility model is equipped with an ejector. If the U-shaped pin breaks during bending or straightening, the broken part in the positioning clamp mounting hole can be ejected by the ejector. Even if a break occurs, the broken part can be quickly removed, ensuring efficient disassembly and assembly. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a three-dimensional structural diagram of the U-shaped pin disassembly and assembly tool of this utility model;

[0022] Figure 2 This is the front view of the U-shaped pin disassembly and assembly tool of this utility model;

[0023] Figure 3 This is a top view of the U-shaped pin disassembly and assembly tool of this utility model;

[0024] Figure 4 This is a side view of the U-shaped pin disassembly and assembly tool of this utility model;

[0025] In the diagram: 1. Bend hole; 2. Handle; 3. Ejector; 4. First hammer; 5. Second hammer; 6. Round hole. Detailed Implementation

[0026] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0027] The U-pin, a crucial component for securing the positioning clamp and positioner and preventing the positioner from detaching, is often damaged during routine maintenance due to the lack of specialized tools for its installation and removal. When workers use wire cutters to bend the end of the U-pin upwards, the main body of the pin is damaged, and the positioning clamp may also be damaged if not handled carefully. Furthermore, during installation, the U-pin may not fit tightly against the positioning clamp. Over time, this can easily lead to the positioner separating from the positioning clamp during operation, causing pantograph-catenary malfunctions. During removal, the end of the U-pin may break, causing it to jam against the positioning clamp. Without specialized tools, the broken part is extremely difficult to remove. Currently, the lack of specialized tools for installation and removal results in low work efficiency and severe damage to the U-pin itself.

[0028] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp, such as... Figure 1 As shown, it includes a hammer head, which includes a first hammer head 4 and a second hammer head 5. The upper surface of the first hammer head 4 is a slope, and two bending holes 1 are provided on the upper surface of the second hammer head 5. A handle 2 is provided at one end of the second hammer head 5, and an ejector 3 is provided at one end of the handle 2.

[0029] The first hammerhead 4 and the second hammerhead 5 are integrated into a single structure. The sides and bottom surface of the first hammerhead 4 are flat. The U-shaped pin removal tool can also be used as a regular hammer. One end features a square hammerhead design, while the other end uses a duckbill-style flat opening design. For example, the duckbill width is 4mm and the length is 32mm. The flat opening better fits the size of the positioning clamp connection port, making it more convenient for operators to use. The duckbill size, which is also the size of the first hammerhead, can be designed according to the size of the positioning clamp connection port.

[0030] A push-out part is connected to the tail of the hammer handle. It is ground according to the diameter of the U-pin end to ensure that if the U-pin breaks during disassembly, it can be pushed out in time using the tail. That is, the push-out part 3 is used to push the broken part of the U-pin out of the positioning clamp. If the U-pin breaks during bending or straightening, the broken part in the positioning clamp mounting hole can be pushed out by the push-out part 3. Even if it breaks, the broken part can be quickly removed, ensuring disassembly and assembly efficiency.

[0031] like Figure 4 As shown, two bending holes 1 are designed on the top of the hammer head according to the distance between the two ends of the U-shaped pin and the diameter of the end. Specifically, bending holes 1 are designed according to the distance between the two ends of the U-shaped pin of 16mm and the diameter of the end of 4mm. The distance between the two bending holes 1 is the same as the distance between the two ends of the U-shaped pin. When designing, the drilling position of bending holes 1 can be selected according to the model of the U-shaped pin.

[0032] The slope of the first hammerhead 4 is 60°. During processing, one side of the first hammerhead 4 is ground downward at a 60° angle to meet the standard of 60° upward bending in the "U-pin Instruction Manual".

[0033] One end of the handle 2 is fixedly connected to the lower surface of the second hammer head 5. The other end of the handle 2 is fixedly connected to the ejector 3. The handle 2 and the ejector 3 are an integral structure. The ejector 3 is formed by grinding. The handle 2 is used to drive the hammer head to rotate, thereby achieving the bending or straightening of the tail of the U-shaped pin.

[0034] like Figure 3 As shown, the ejector 3 is a cylindrical structure, and its dimensions match the dimensions of the U-shaped pin tail, thus facilitating the insertion of the ejector 3 into the mounting hole of the positioning clamp to eject the broken part of the U-shaped pin. The bending hole 1 is symmetrically arranged around the circular hole 6, and its diameter matches the dimensions of the U-shaped pin tail, facilitating the insertion of the U-shaped pin tail for bending or straightening, thereby enabling the installation and removal of the U-shaped pin.

[0035] The ejector part 3 is formed by grinding and has a cylindrical structure. The grinding degree is selected according to the size of the U-pin tail. For example, it can be ground according to the diameter of the U-pin end of 4mm to ensure that if the U-pin breaks during disassembly, it can be ejected in time using the tail. The ejector part 3 of the required size can be ground according to the diameter of the U-pin end during the design.

[0036] The lower ends of the two bent holes 1 are provided with round holes 6. When encountering non-standard U-shaped pins, if the size of the two bent holes 1 cannot match the size of the U-shaped pins, the round holes 6 can be used to install or remove the pins in two separate steps.

[0037] Instructions for using the U-pin installation and removal tool: During installation, tap one end of the U-pin with the second hammer (5) to insert it into the mounting hole on the positioning clamp. Then, tap with the first hammer to ensure the U-pin is firmly against the clamp, preventing pantograph / catenary line malfunctions. Next, insert the tail of the positioning pin into the bending hole and rotate the handle to bend the tail upwards by 60°, completing the installation. For removal, insert the tail of the U-pin into the bending hole and rotate the handle to straighten it. Then, tap the U-pin body with the end of the second hammer to align the tail end parallel to the round hole in the positioning clamp. Finally, use the ejector to push the U-pin completely out of the clamp's round hole, completing the removal. This method enables quick installation and removal of the U-pin while preventing damage and breakage of the U-pin's end.

[0038] During maintenance of the flexible contact wire positioning device, damage to the U-shaped pin body can be avoided, eliminating the safety hazard of pantograph-catenary faults caused by the separation of the positioner from the positioning clamp. At the same time, the development of this device reduces the difficulty of manual operation, optimizes the maintenance process, and improves maintenance quality, equipment safety, and stability.

[0039] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A tool for disassembling and assembling U-shaped pins of flexible contact wire positioning clamps, characterized in that, The device includes a hammerhead, which comprises a first hammerhead and a second hammerhead. The upper surface of the first hammerhead is inclined, and the upper surface of the second hammerhead is provided with two bending holes. A handle is provided at one end of the second hammerhead, and an ejector is provided at one end of the handle.

2. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The first hammer and the second hammer are an integrated structure.

3. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The side and lower surface of the first hammer head are both flat.

4. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The slope of the first hammer head is 60°.

5. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, One end of the grip is fixedly connected to the lower surface of the second hammerhead.

6. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 5, characterized in that, The other end of the grip is fixedly connected to the ejector.

7. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The ejector is a cylindrical structure, and its dimensions match the dimensions of the U-shaped pin body.

8. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The two bent holes are symmetrically arranged with the circular hole as the center.

9. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 8, characterized in that, The diameters of the two bent holes match the dimensions of the U-shaped pin body.

10. The U-shaped pin disassembly and assembly tool for a flexible contact wire positioning clamp as described in claim 1, characterized in that, The lower ends of the two bent holes are provided with round holes.

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