Anti-falling rail clamping device
By using a unique 7-shaped mounting base and an anti-derailment rail clamping device that adjusts the height of the operating block with an operating screw, the problems of cumbersome adjustment, poor applicability, and insufficient stability of existing devices are solved, enabling rapid installation and efficient operation.
Patent Information
- Application Number
- CN202520329533.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing anti-derailment rail clamping devices have cumbersome adjustment methods, limited applicability, poor stability, and cannot flexibly cope with different track conditions, increasing the risk of equipment derailment and maintenance costs.
The unique 7-shaped mounting base and operating screw adjust the height of the operating block to achieve a tight fit between the rail clamping arm and the rail, simplifying operation and enhancing applicability and stability.
It improves the applicability and versatility of the device, reduces safety hazards caused by track differences, simplifies the installation process, and reduces manpower and time costs.
Smart Images

Figure CN223812577U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of track cantilever quick-assembly maintenance platform, and specifically relates to a rail-preventing device for detachment. Background Technology
[0002] In the field of rail-mounted cantilevered quick-assembly maintenance platforms, anti-derailment rail clamping devices play a crucial role in ensuring the safe operation of the equipment. Currently, there are various types of anti-derailment rail clamping devices on the market, but they all generally have some obvious defects.
[0003] On the one hand, many existing anti-derailment rail clamping devices have cumbersome adjustment methods. For example, some devices use complex mechanical structures to adjust the rail clamping height and clamping force, which is not only difficult to operate, but also requires a lot of time to adjust during actual operation, which greatly reduces the work efficiency of the maintenance platform. The inconvenience of adjusting these devices is particularly prominent when encountering different rail specifications or when frequently switching work scenarios.
[0004] On the other hand, the applicability of existing devices is limited. Different tracks may vary in size, shape, and material; however, some anti-derailment rail clamping devices are only applicable to tracks of specific specifications and cannot flexibly cope with diverse track conditions. This means that in some special or non-standard track usage scenarios, these devices cannot play their due role in preventing derailment, thereby increasing the risk of equipment derailment and threatening the safety of operators and the normal operation of the equipment.
[0005] Furthermore, some traditional anti-derailment rail clamping devices have inadequate structural design, resulting in poor stability. During equipment operation, when subjected to external forces such as vibration and impact, they are prone to loosening and displacement, thus affecting the anti-derailment effect. Moreover, these devices have high maintenance costs; frequent maintenance not only increases operating costs but also affects the normal service life of the maintenance platform.
[0006] In summary, existing anti-derailment rail clamping devices are insufficient in terms of ease of adjustment, applicability, and stability. There is an urgent need for a new type of anti-derailment rail clamping device to meet the requirements of safe and efficient operation of the rail cantilever quick-assembly maintenance platform in complex and ever-changing working environments. Summary of the Invention
[0007] The technical problem to be solved by this utility model is to provide an anti-derailment rail clamping device. By adjusting the height of the operating block by operating the screw, the device can flexibly adapt to the height and condition of different tracks. In practical applications, whether it is a standard track or a track with a slightly different height due to terrain, construction and other factors, the height can be adjusted by simple operation to ensure that the rail clamping support arm and the clamping follower wheel are closely matched with the track, which greatly enhances the applicability and versatility of the device and reduces the safety hazards caused by track differences.
[0008] To solve the above technical problems, the utility model adopts the technical scheme that:
[0009] A prevent off clamp rail device, including installation base, installation base is installed with operation block, and the both ends of operation block are rotatably installed with clamping rail support arm, and clamping rail support arm is connected with clamping along wheel.
[0010] Preferably, the operation block adjusts the height through the operation screw, and the operation screw is threadedly connected with the installation base.
[0011] Preferably, the installation base includes a side plate and a top plate, the top plate is threadedly connected with the operation screw and locked by a locking nut.
[0012] Preferably, the clamping rail support arm is connected with the side plate through a mounting shaft.
[0013] Preferably, the installation base is threadedly connected with the operation screw, the operation screw is fixed with the installation base through the locking nut, the operation screw is connected with the operation block, the operation block is slidably connected with the clamping rail support arm, the clamping rail support arm is connected with the installation base through the clamping rail support arm operation moving shaft, and the clamping rail support arm is connected with the clamping along wheel.
[0014] Preferably, the top plate is provided with a threaded hole matched with the operation screw, the side plate is provided with a mounting shaft matched with the clamping rail support arm in rotation, and the operation block is provided with a one-shaped guide hole connected with the clamping rail support arm through the clamping along wheel mounting shaft.
[0015] Preferably, the clamping rail support arm is provided with an avoiding groove for mounting the clamping rail support arm, and the clamping rail support arm is provided with an operation moving shaft, and the operation moving shaft can slide in the one-shaped guide hole.
[0016] Preferably, the clamping rail support arm is of a plate structure, the clamping rail support arm is provided with a follow-up operation mounting hole at the top, and the clamping rail support arm is provided with a fixed mounting hole at the middle, and the fixed mounting hole is used for mounting on the mounting shaft.
[0017] The utility model can achieve the following beneficial effects:
[0018] The prevent off clamp rail device adopts a unique 7-shaped installation base, which can be stably fixed at the both ends of the support frame to provide reliable installation support for the whole device. The structure is simple and clear, the installation position and connection mode of each component are clear, the device can be quickly installed on a rail cantilever type quick installation maintenance platform, the installation time and labor cost are reduced, and the assembly efficiency of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] The utility model will be further described below in combination with the drawings and examples:
[0020] Figure 1 It is three-dimensional structure diagram for the utility model.
[0021] Figure 2 For the explosion drawing of the utility model;
[0022] Figure 3 For the application drawing of the utility model;
[0023] Figure 4 For the application unlocking state drawing of the utility model;
[0024] Figure 5 For the application locking state drawing of the utility model.
[0025] In the drawing: 7 - anti-off rail clamping device; 70 - mounting base; 71 - operating block; 72 - rail clamping arm operating moving shaft; 73 - rail clamping arm; 74 - clamping follow-up wheel; 75 - operating screw; 76 locking nut; mounting shaft 70-2; threaded hole 71-1; mounting avoidance groove 71-2; straight guide hole 71-3; follow-up operation mounting hole 73-1; fixed mounting hole 73-2; clamping follow-up wheel mounting shaft 73-3. DETAILED DESCRIPTION
[0026] The preferred scheme is shown in Figures 1 to 5 An anti-off rail clamping device is provided, which is a safety protection device and mainly comprises a mounting base 70, an operating block 71, a rail clamping arm operating moving shaft 72, a rail clamping arm 73, a clamping follow-up wheel 74, an operating screw 75 and a locking nut 76. The device is fixedly installed on both end portions of a support frame through the mounting base 70, thereby providing installation support for the anti-off rail clamping device. The mounting base 70 has a 7-shaped appearance, and the top middle portion is provided with a threaded hole 70-1 matched with the operating screw 75, and the lower portion is symmetrically provided with a mounting shaft 70-2 of the rail clamping arm 73. The operating block 71 has a cuboid structure, and the middle portion is provided with a threaded hole 71-1, and both sides are provided with a mounting avoidance groove 71-2 of the rail clamping arm 73, and a straight guide hole 71-3 is formed at the corresponding position. The rail clamping arm 73 has a plate structure, and the top portion is provided with a follow-up operation mounting hole 73-1, the middle portion is provided with a fixed mounting hole 73-2, and the bottom portion is provided with a clamping follow-up wheel mounting shaft 73-3.
[0027] The installation avoiding groove 71-2 is provided with the clamping rail supporting arm 73 on both sides, and a linear guide hole 71-3 is provided on the corresponding place on the left and right sides; the clamping rail supporting arm operating moving shaft 72 is a columnar pin shaft, which is installed in the operating installation hole 73-1 of the clamping rail supporting arm 73 in an interference fit manner, and the two sides of the operating moving shaft 72 can slide in the linear guide hole 71-3 of the operating block 71; the clamping rail supporting arm 73 is a plate type structure, which is provided with the follow-up operating installation hole 73-1 at the top, the fixed installation hole 73-2 in the middle, and the clamping and following wheel installation shaft 73-3 at the bottom, can be installed on the installation shaft 70-2 of the installation base 70, ensures that the clamping rail supporting arm 73 can rotate around the installation shaft 70-2, and provides installation support for the clamping and following wheel 74; the clamping and following wheel 74 is installed on the clamping and following wheel installation shaft 73-3 of the clamping rail supporting arm 73, and when the anti-falling clamping rail device 7 is in the tightening state, the device can move forward and backward along the rail.
[0028] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement solutions of the technical features claimed in the claims. That is, equivalent replacement improvements within this range are also within the protection scope of the present application.
Claims
1. An anti-extraction rail clamp device, characterized by: The utility model provides a rail clamp, which comprises a mounting base (70), an operation block (71) mounted on the mounting base (70), and rail clamping arms (73) rotatably mounted at both ends of the operation block (71) and connected with clamping trailing wheels (74).
2. A derailment prevention device as claimed in claim 1, wherein: The operation block (71) is adjusted in height by an operation screw (75) which is threadedly connected with the mounting base (70).
3. A derailment prevention device according to claim 2, wherein: The mounting base (70) comprises side plates and a top plate, the top plate is threadedly connected with the operation screw (75) and locked by a locking nut (76).
4. A derailment prevention device according to claim 3, wherein: The rail clamping arms (73) are connected with the side plates by mounting shafts (70-2).
5. The anti-extraction rail clamp of claim 1, wherein: The mounting base (70) is threadedly connected with the operation screw (75), the operation screw (75) is fixed with the mounting base (70) by the locking nut (76), the operation screw (75) is connected with the operation block (71), the operation block (71) is slidably connected with the rail clamping arms (73), the rail clamping arms (73) are connected with the mounting base (70) by rail clamping arm operation moving shafts (72), and the rail clamping arms (73) are connected with the clamping trailing wheels (74).
6. A derailment prevention device according to claim 3, wherein: The top plate is provided with a threaded hole (70-1) matched with the operation screw (75), the side plates are provided with mounting shafts (70-2) rotatably matched with the rail clamping arms (73), the operation block (71) is provided with a one-shaped guide hole (71-3), and the one-shaped guide hole (71-3) is connected with the rail clamping arms (73) by clamping trailing wheel mounting shafts (73-3).
7. The anti-extraction rail clamp of claim 3, wherein: The rail clamping arms (73) are provided with avoiding grooves (71-2) for mounting the rail clamping arms (73), and operation moving shafts (72) are mounted on the rail clamping arms (73), and the operation moving shafts (72) can slide in the one-shaped guide hole (71-3) on both sides.
8. The anti-extraction rail clamp of claim 3, wherein: The rail clamping arms (73) are in a plate type structure, the rail clamping arms (73) are provided with follow-up operation mounting holes (73-1) at the top, and the rail clamping arms (73) are provided with fixed mounting holes (73-2) in the middle, and the fixed mounting holes (73-2) are used for mounting on the mounting shafts (70-2).