Single-toe elastic strip installer

By introducing an automatic reset hook structure into the single-toe spring clip installer, the problem of the hook not automatically resetting is solved, improving construction efficiency and enhancing operational convenience.

CN224259126UActive Publication Date: 2026-05-19中铁十四局集团青岛工程有限公司 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中铁十四局集团青岛工程有限公司
Filing Date
2025-07-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing single-toe spring clip installer's hook does not have an automatic reset function, resulting in low construction efficiency.

Method used

A structure including a fixing block, a mounting part, a hook, a first connecting piece, a first connecting block, a telescopic rod, and a spring is designed so that the hook rotates and compresses the spring when the single-toe spring is stretched. After installation, the spring's reaction force achieves automatic reset, and the support part and the limiting block ensure accurate reset.

Benefits of technology

The automatic reset function of the hook is realized, which improves construction efficiency and facilitates the next use. The anti-slip sleeve also improves the ease of operation.

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Abstract

The utility model discloses a single-toe elastic strip installer in the technical field of urban rail construction, which comprises a fixed block and an installation part, the installation part is arranged on one side of the fixed block, a clamping hook is arranged in the installation part and is rotatably connected with the installation part, a first connecting piece is arranged on one side of the fixed block, and a second connecting piece is arranged on the other side of the fixed block. A first connecting block is arranged in the first connecting piece, the first connecting block is rotationally connected with the first connecting piece, a telescopic rod is arranged on one side of the first connecting block, and a spring sleeves the surface of the telescopic rod. The automatic reset function of the clamping hook is achieved, when the clamping hook stretches the single-toe elastic strip, the clamping hook can rotate in the mounting part, so that the telescopic rod is shrunk, then the spring is compressed, after the single-toe elastic strip is mounted, the clamping hook can be reset under the counter-acting force of the spring, and the clamping hook can be conveniently used next time.
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Description

Technical Field

[0001] This utility model belongs to the field of urban rail construction technology, specifically relating to a single-toe elastic bar installer. Background Technology

[0002] Single-toe elastic rail fasteners are a type of fastener system used in urban rail transit. They are flexible, separate fasteners suitable for trackless tracks with 60kg / m rails. Their structure mainly consists of a single-toe elastic rail (PR elastic rail), a steel base plate, rubber base plates (rail underplate and under the steel base plate), gauge blocks, screws, nuts, and plastic sleeves. A single-toe elastic rail installer is required for installation.

[0003] The existing single-toe spring clip installer still has some defects. When the hook pulls the single-toe spring clip, the hook itself will rotate along with the stretching of the single-toe spring clip. After installation, the hook will rotate to the bottom under the action of gravity. The next time it is used, the hook needs to be rotated to a suitable position for easy installation. The process is relatively troublesome and reduces construction efficiency. Therefore, we propose a single-toe spring clip installer. Utility Model Content

[0004] The purpose of this invention is to provide a single-toe spring clip installer to solve the problem mentioned in the background art that the hook does not have an automatic reset function, which reduces work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-toe spring clip installer, comprising a fixing block and an installation part, wherein the fixing block has an installation part on one side, the installation part has a hook inside, the hook and the installation part are rotatably connected, the fixing block has a first connecting member on one side, the first connecting member has a first connecting block inside, the first connecting block and the first connecting member are rotatably connected, the first connecting block has a telescopic rod on one side, and a spring is sleeved on the surface of the telescopic rod.

[0006] Preferably, the top of the hook is provided with a second connector, the second connector and the hook are fixedly connected, the inner side of the second connector is provided with a second connecting block, and the second connecting block and the second connector are rotatably connected.

[0007] Preferably, a fixing shaft is provided on one side of the mounting part, and the fixing shaft and the mounting part are fixed by interlocking, and a support part is provided at the bottom of the fixing block.

[0008] Preferably, a limiting block is provided on one side of the support portion, and the limiting block and the support portion are fixed by welding.

[0009] Preferably, the top of the fixing block is provided with a handle, and the fixing block and the handle are fixed together by welding.

[0010] Preferably, the surface of the handle is provided with an anti-slip sleeve, and the anti-slip sleeve is fixedly connected to the handle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The automatic reset function of the hook is realized through the provided mounting part, hook, first connecting part, first connecting block, telescopic rod and spring. When the hook stretches the single-toe spring strip, the hook will rotate inside the mounting part, thereby retracting the telescopic rod and compressing the spring. After the single-toe spring strip is installed, the hook will reset under the reaction force of the spring, which is convenient for the next use.

[0013] 2. The support part provides support, making it easier to stretch the single-toe spring bar and limit the position of the hook, making the hook more accurate when resetting. The anti-slip sleeve provides the handle with anti-slip function, making it more convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the hook structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the side structure of the hook of this utility model.

[0017] In the diagram: 1. Fixing block; 2. Mounting part; 3. Hook; 4. First connecting piece; 5. First connecting block; 6. Telescopic rod; 7. Spring; 8. Second connecting piece; 9. Second connecting block; 10. Fixing shaft; 11. Support part; 12. Limiting block; 13. Handle; 14. Anti-slip sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3This utility model provides a technical solution: a single-toe spring clip installer, including a fixing block 1 and an installation part 2. The installation part 2 is provided on one side of the fixing block 1, and a hook 3 is provided inside the installation part 2. The hook 3 and the installation part 2 are rotatably connected. A first connecting member 4 is provided on one side of the fixing block 1, and a first connecting block 5 is provided inside the first connecting member 4. The first connecting block 5 and the first connecting member 4 are rotatably connected. A telescopic rod 6 is provided on one side of the first connecting block 5, and a spring 7 is sleeved on the surface of the telescopic rod 6. Through the provided installation part 2, hook 3, first connecting member 4, first connecting block 5, telescopic rod 6 and spring 7, the automatic reset function of hook 3 is realized. When hook 3 stretches the single-toe spring clip, hook 3 will rotate inside the installation part 2, thereby retracting the telescopic rod 6 and compressing the spring 7. After the single-toe spring clip is installed, hook 3 will reset under the reaction force of spring 7, which is convenient for the next use.

[0020] Specifically, the top of the hook 3 is provided with a second connector 8, which is fixedly connected to the hook 3. The inner side of the second connector 8 is provided with a second connecting block 9, which is rotatably connected to the second connector 8. Through the provided second connector 8 and second connecting block 9, the rotatable connection between the hook 3 and the telescopic rod 6 is realized.

[0021] Specifically, a fixing shaft 10 is provided on one side of the mounting part 2. The fixing shaft 10 and the mounting part 2 are fixed by interlocking. A support part 11 is provided at the bottom of the fixing block 1. The fixing shaft 10 enables the installation of the hook 3. The support part 11 provides support, which facilitates the stretching of the single-toe elastic bar.

[0022] Specifically, a limiting block 12 is provided on one side of the support part 11. The limiting block 12 and the support part 11 are fixed by welding. The limiting block 12 can limit the position of the hook 3, making the hook 3 more accurate when resetting.

[0023] Specifically, the top of the fixing block 1 is provided with a handle 13. The fixing block 1 and the handle 13 are fixed by welding. The handle 13 provides convenience for the operation of the hook 3.

[0024] Specifically, the surface of the handle 13 is provided with an anti-slip sleeve 14, which is fixedly connected to the handle 13. The anti-slip sleeve 14 provides an anti-slip function for the handle 13, making it more convenient to use.

[0025] In this embodiment, when the device is installed, the hook 3 will rotate inside the mounting part 2 when it stretches the single-toe spring strip, thereby retracting the telescopic rod 6 and compressing the spring 7. After the single-toe spring strip is installed, the hook 3 will reset under the reaction force of the spring 7, making it convenient for the next use. The support part 11 can provide support, making it easier to stretch the single-toe spring strip and limit the hook 3, making the hook 3 more accurate when resetting. The anti-slip sleeve 14 provides the anti-slip function of the handle 13, making it more convenient to use.

[0026] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-toe spring clip installer, comprising a fixing block (1) and a mounting part (2), characterized in that: The fixing block (1) has an installation part (2) on one side, and a hook (3) is provided inside the installation part (2). The hook (3) and the installation part (2) are rotatably connected. The fixing block (1) has a first connector (4) on one side, and a first connecting block (5) is provided inside the first connecting block (4). The first connecting block (5) and the first connecting block (4) are rotatably connected. The first connecting block (5) has a telescopic rod (6) on one side, and a spring (7) is sleeved on the surface of the telescopic rod (6).

2. The single-toe spring bar installer according to claim 1, characterized in that: The top of the hook (3) is provided with a second connector (8), the second connector (8) and the hook (3) are fixedly connected, and the inner side of the second connector (8) is provided with a second connecting block (9), the second connecting block (9) and the second connector (8) are rotatably connected.

3. The single-toe spring bar installer according to claim 1, characterized in that: The mounting part (2) has a fixed shaft (10) on one side, and the fixed shaft (10) and the mounting part (2) are fixed by interlocking. The bottom of the fixing block (1) has a support part (11).

4. The single-toe spring bar installer according to claim 3, characterized in that: A limiting block (12) is provided on one side of the support part (11), and the limiting block (12) and the support part (11) are fixed by welding.

5. The single-toe spring bar installer according to claim 1, characterized in that: The top of the fixing block (1) is provided with a handle (13), and the fixing block (1) and the handle (13) are fixed by welding.

6. The single-toe spring bar installer according to claim 5, characterized in that: The surface of the handle (13) is provided with an anti-slip sleeve (14), and the anti-slip sleeve (14) and the handle (13) are fixedly connected.