Axle counter protection device in existing line construction

By using protective devices such as left and right protective covers in railway construction, the problem of axle counters being easily damaged at the construction site has been solved, effectively protecting the axle counters and improving the service life of the equipment and construction safety.

CN224117299UActive Publication Date: 2026-04-14CHINA RAILWAY FIRST GROUP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the complex environment of railway construction sites, axle counters lack protective devices and are easily damaged by mechanical collisions and falling heavy objects, affecting their service life and increasing costs.

Method used

Design a protective device comprising a left protective cover, a right protective cover, nylon female buckles, nylon female buckles, a positioning cylinder, a lead screw, and a protective shell. The device is fixed to both sides of the rail by nylon buckles, and the axle counter is wrapped with the lead screw and protective shell to provide physical isolation protection. It is also equipped with warning lights and reflective stickers to enhance construction safety.

Benefits of technology

It effectively prevents the axle counter from being damaged by collisions and scratches during construction, extends its service life, reduces equipment failure rate, and improves construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of railway construction, in particular to an axle counter protection device in existing line construction, which comprises a left protection cover, a right protection cover and a steel rail, nylon son buckles are welded on the front side and the rear side of the right side of the top of the left protection cover, and nylon mother buckles are welded on the front side and the rear side of the left side of the top of the right protection cover. The left side of the left protective cover and the right side of the right protective cover are fixedly connected with positioning cylinders in a penetrating mode, inner cavities of the positioning cylinders are in threaded connection with lead screws, and the opposite ends of the lead screws are movably connected with protective shells through bearings. Through cooperation of the left protection cover, the right protection cover, the steel rail, the nylon son buckle, the nylon mother buckle, the positioning cylinder, the lead screw and the protection shell, the axle counter protection device has the advantage of protection function, the left protection cover and the right protection cover are fixed to the two sides of the steel rail through the nylon son buckle and the nylon mother buckle, and the axle counter can be protected under the action of the right protection cover and the left protection cover; and collision and rubbing of foreign objects are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of railway construction technology, specifically to a protection device for axle counters during the construction of existing railway lines. Background Technology

[0002] The function of an axle counter is to detect and calculate the number of axles on a railway track, providing information on vehicle position and running status to the railway signal control system, assisting in train scheduling and operation control. In addition, the axle counter can track the running status of trains in real time, including position, speed and direction, which is crucial for train scheduling and monitoring. The axle counter can also record the running history of trains, including the stations passed, time and speed, which is very helpful for fault diagnosis and operation analysis.

[0003] Due to the complex environment of the construction site, which is filled with various construction machinery and tools, the axle counter, which lacks protective devices, is easily damaged by mechanical collisions. At the same time, activities such as heavy object handling and material stacking during the construction process may also cause the axle counter to be hit due to improper operation, resulting in equipment failure, thereby affecting the service life of the axle counter and increasing costs.

[0004] To address the above technical issues, we have designed a protection device for axle counters during the construction of existing railway lines. Utility Model Content

[0005] The purpose of this utility model is to provide a protection device for axle counters during the construction of existing lines. It has the advantage of effectively protecting the surface of the axle counter during the construction process, and solves the problem that axle counters are easily damaged by mechanical collisions in complex construction site environments where protective devices are lacking.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for axle counters during the construction of existing railway lines, comprising a left protective cover, a right protective cover, and a rail. Nylon fasteners are welded to the front and rear sides of the top right side of the left protective cover, and nylon female fasteners are welded to the front and rear sides of the top left side of the right protective cover. Positioning cylinders are fixedly connected through the left side of the left protective cover and the right side of the right protective cover. A lead screw is threaded into the inner cavity of the positioning cylinder, and a protective shell is movably connected to the opposite end of the lead screw via a bearing. Axle counters are bolted to both sides of the rail. A threaded tube is welded to the top of the right protective cover, and a threaded cylinder is threaded onto the surface of the threaded tube. A support rod is riveted to the top of the threaded cylinder, and a base is riveted to the top of the support rod. A warning light is bolted into the inner cavity of the base.

[0007] Preferably, a handwheel is riveted to the opposite end of the lead screw, and the shaft counter is located inside the protective housing.

[0008] Preferably, reflective stickers are affixed to the left side of the left protective cover and the right side of the right protective cover, and the battery pack is connected to the inner cavity of the threaded tube by bolts.

[0009] Preferably, a switch button is bolted to the right side of the top of the threaded cylinder, and the output end of the switch button is unidirectionally electrically connected to the warning light.

[0010] Preferably, the right side of the nylon female buckle is inserted into the inner cavity of the nylon female buckle, and a threading hole is provided at the bottom of the protective shell.

[0011] Preferably, guide rods are riveted to the front and rear sides of the opposite side of the protective shell, and guide tubes are movably sleeved on the surface of the guide rods. The left end of the guide tube on the left side is fixedly connected to the left protective cover, and the right end of the guide tube on the right side is fixedly connected to the right protective cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model has the advantage of protective function through the cooperation of left protective cover, right protective cover, steel rail, nylon male buckle, nylon female buckle, positioning cylinder, lead screw and protective shell. The left and right protective covers are fixed to both sides of the steel rail by nylon male and female buckles. Under the action of the right and left protective covers, the axle counter can be protected from collision and scratches by external objects. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional bottom view of the structure of this utility model;

[0016] Figure 3 This is a three-dimensional bottom view of a partial structure of this utility model;

[0017] Figure 4 This is a perspective view of the left protective cover structure of this utility model;

[0018] Figure 5 This is a perspective view of the right protective cover structure of this utility model;

[0019] Figure 6 This is a three-dimensional view of the rail structure of this utility model.

[0020] In the diagram: 1. Left protective cover; 2. Right protective cover; 3. Rail; 4. Nylon female fastener; 5. Nylon female fastener; 6. Positioning cylinder; 7. Lead screw; 8. Protective shell; 9. Axle counter; 10. Threaded tube; 11. Threaded cylinder; 12. Support rod; 13. Base; 14. Warning light; 15. Handwheel; 16. Reflective sticker; 17. Battery pack; 18. Switch button; 19. Wiring hole; 20. Guide rod; 21. Guide tube. Detailed Implementation

[0021] Please see Figures 1-6 A protective device for axle counters 9 during the construction of existing railway lines includes a left protective cover 1, a right protective cover 2, and a rail 3. By setting up the left and right protective covers 1 and 2, and through the cooperation of nylon fasteners 4 and nylon female fasteners 5, a wrap-around protection is formed for the axle counters 9 on both sides of the rail 3, directly blocking collisions and scrapes from construction machinery, heavy objects, and other external objects, providing physical isolation protection. Nylon fasteners 4 are welded to the front and rear sides of the top right side of the left protective cover 1, and nylon female fasteners 5 are welded to the front and rear sides of the top left side of the right protective cover 2. The use of nylon fasteners 4 and nylon female fasteners 5 ensures quick positioning and stable connection between the left and right protective covers 1 and 2, allowing installation without additional tools and improving construction efficiency. Positioning cylinders 6 are fixedly connected through the left side of the left protective cover 1 and the right side of the right protective cover 2. The positioning cylinders 6 allow the lead screw 7 to move left and right during rotation. The lead screw 7 is threaded into the inner cavity of the positioning cylinder 6, and the limiting function of the lead screw 7 further secures the left and right protective covers 1 and 2. Cover 2 prevents it from sliding along the direction of the rail 3 and enhances the overall structural stability. The opposite ends of the lead screw 7 are movably connected to the protective shell 8 through the bearing. By setting the protective shell 8, the axle counter 9 is directly wrapped, providing secondary protection and preventing foreign objects from directly impacting the surface of the axle counter 9. The left protective cover 1, the right protective cover 2 and the protective shell 8 are all made of polycarbonate (PC), which has high strength, impact resistance and anti-aging properties. The plastic shell is non-magnetic, so as to avoid interfering with the magnetic induction signal of the axle counter 9 and ensure the axle counting accuracy. The axle counter 9 is bolted to both sides of the rail 3. The top of the right protective cover 2 is welded with a threaded tube 10. The surface of the threaded tube 10 is threaded with a threaded cylinder 11. The top of the threaded cylinder 11 is riveted with a support rod 12. The top of the support rod 12 is riveted with a base 13. The inner cavity of the base 13 is bolted with a warning light 14. By setting the warning light 14, in conjunction with the switch button 18 and the battery pack 17, active warning is achieved at night or in low visibility environments, reducing the risk of collision.

[0022] Please see Figure 1 and Figure 3 Handwheels 15 are riveted to the opposite end of the lead screw 7. By setting the handwheels 15, the operating torque when the lead screw 7 rotates can be increased, and the position of the protective shell 8 can be easily adjusted without tools. The shaft counter 9 is located inside the protective shell 8.

[0023] Please see Figure 1Reflective stickers 16 are affixed to the left side of the left protective cover 1 and the right side of the right protective cover 2. By setting the reflective stickers 16, the reflective properties can remind construction workers to pay attention to the position of the axle counter 9 in low light conditions, reducing the risk of accidental human touch. The inner cavity of the threaded tube 10 is connected to the battery pack 17 by bolts. By setting the battery pack 17, the warning light 14 can be powered so that it can emit light during night construction, increasing the warning effect.

[0024] Please see Figure 1 A switch button 18 is bolted to the right side of the top of the threaded cylinder 11. The switch button 18 allows the user to control the warning light 14. The output of the switch button 18 is unidirectionally connected to the warning light 14.

[0025] Please see Figure 1 The right side of the nylon buckle 4 is inserted into the inner cavity of the nylon buckle 5. The bottom of the protective shell 8 is provided with a wire hole 19. By setting the wire hole 19, the cable of the axle counter 9 can pass through and be connected to the signal system.

[0026] Please see Figure 2 and Figure 3 Guide rods 20 are riveted to the front and rear sides of the opposite side of the protective shell 8. Guide tubes 21 are movably sleeved on the surface of the guide rods 20. By setting the guide rods 20 and guide tubes 21, a straight guide can be provided for the movement of the protective shell 8, avoiding deviation or jamming when the lead screw 7 is adjusted, and ensuring the stability and reliability of the protective structure. The left end of the guide tube 21 on the left side is fixedly connected to the left protective cover 1, and the right end of the guide tube 21 on the right side is fixedly connected to the right protective cover 2.

[0027] When using this device, to protect the axle counters 9 on both sides of the rail 3, place the left protective cover 1 and the right protective cover 2 on the left and right sides of the rail 3. Then, use nylon fasteners 4 and nylon fasteners 5 to limit and fix the left protective cover 1 and the right protective cover 2. Under the action of the left protective cover 1 and the right protective cover 2, the axle counter 9 can be protected. Then, turn the handwheel 15, which drives the lead screw 7 to rotate. The lead screw 7 is displaced through the threaded connection with the positioning cylinder 6. The lead screw 7 drives the protective shell 8 to move. The opposite side of the protective shell 8 contacts the rail 3, thereby playing a clamping role. This can limit and fix the left protective cover 1 and the right protective cover 2 to prevent sequential displacement. At the same time, it can also further protect the axle counter 9 from scratches and collisions by external objects. When working at night, press the switch button 18. At this time, the warning light 14 will start flashing to serve as a warning.

[0028] In summary, the axle counter protection device used in the construction of this existing line, through the cooperation of the left protective cover 1, right protective cover 2, rail 3, nylon female buckle 4, nylon female buckle 5, positioning cylinder 6, lead screw 7 and protective shell 8, solves the problem that the axle counter is easily damaged by mechanical collisions in the complex construction site environment where protective devices are lacking.

Claims

1. A protective device for axle counters during construction of existing railway lines, comprising a left protective cover (1), a right protective cover (2), and a rail (3), characterized in that: The left protective cover (1) has nylon fasteners (4) welded to the front and rear sides of the top right side, and the right protective cover (2) has nylon fasteners (5) welded to the front and rear sides of the top left side. The left side of the left protective cover (1) and the right side of the right protective cover (2) are both fixedly connected to the positioning cylinder (6). The inner cavity of the positioning cylinder (6) is threaded with a lead screw (7). The opposite ends of the lead screw (7) are movably connected to a protective shell (8) through a bearing. The two sides of the rail (3) are bolted with axle counters (9). The top of the right protective cover (2) is welded with a threaded tube (10). The surface of the threaded tube (10) is threaded with a threaded cylinder (11). The top of the threaded cylinder (11) is riveted with a support rod (12). The top of the support rod (12) is riveted with a base (13). The inner cavity of the base (13) is bolted with a warning light (14).

2. The axle counter protection device for existing railway line construction according to claim 1, characterized in that: The screw (7) is riveted to a handwheel (15) at the opposite end, and the axle counter (9) is located inside the protective shell (8).

3. The axle counter protection device for existing railway line construction according to claim 1, characterized in that: Reflective stickers (16) are affixed to the left side of the left protective cover (1) and the right side of the right protective cover (2). The inner cavity of the threaded tube (10) is connected to the battery pack (17) by bolts.

4. The axle counter protection device for existing railway line construction according to claim 1, characterized in that: A switch button (18) is bolted to the right side of the top of the threaded cylinder (11), and the output end of the switch button (18) is unidirectionally electrically connected to the warning light (14).

5. The axle counter protection device for existing railway line construction according to claim 1, characterized in that: The right side of the nylon female buckle (4) is inserted into the inner cavity of the nylon female buckle (5), and the bottom of the protective shell (8) is provided with a thread hole (19).

6. The axle counter protection device for existing railway line construction according to claim 1, characterized in that: Guide rods (20) are riveted to the front and rear sides of the opposite side of the protective shell (8). Guide tubes (21) are movably sleeved on the surface of the guide rods (20). The left end of the guide tube (21) on the left side is fixedly connected to the left protective cover (1), and the right end of the guide tube (21) on the right side is fixedly connected to the right protective cover (2).