A ballast fall prevention device
By designing the guide groove device and the limiting block of the adjusting rod, the problem of ballast slab falling when the hydraulic cylinder fails is solved, realizing the stability and safety of the anti-fall device, and ensuring the uniform distribution of ballast slab and the flatness of the track.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RAILTECO EQUIP CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-30
AI Technical Summary
In existing ballast leveling devices, the ballast plates are prone to falling when the hydraulic cylinder fails or the pressure is insufficient, leading to safety hazards. Furthermore, traditional anti-fall devices are prone to detachment due to vibration, resulting in poor performance.
A fall prevention device including a guide trough device and an adjusting rod was designed. The device prevents the ballast slab from falling by the cooperation of the limit block and the stop block, and is fixedly connected to the bottom of the trough by the lifting ring seat to prevent the device from shaking and being lost.
It effectively prevents ballast slabs from falling, improves the stability and safety of the device, avoids the problem of detachment caused by vibration, and ensures the uniform distribution of ballast slabs and the flatness of the track.
Smart Images
Figure CN224431159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ballast leveling protection technology, specifically to a ballast leveling anti-fall device for ballast funnel cars. Background Technology
[0002] A ballast hopper car is a special vehicle used in railway transportation for laying and transporting ballast. It has a funnel structure at the bottom, allowing for rapid unloading and leveling of ballast via pneumatic or manual control. The ballast leveler, also known as a ballast leveling device, typically includes a leveling slab, a lifting drive mechanism, a transmission system, and a control system. The main function of the ballast leveling device is to level the ballast on the railway track, ensuring its uniform distribution and track flatness. After unloading ballast from the ballast hopper car, the leveling device can level the piled ballast to meet track maintenance standards. The ballast leveling device is installed under the hopper car and, under the action of a leveling cylinder, controls the leveling slab to quickly level the ballast, ensuring its uniform distribution on the track and compliance with relevant track maintenance standards. When ballast leveling is not being performed, the ballast slab will be raised to its highest position by the ballast leveling cylinder, away from the rail surface.
[0003] However, in some cases, insufficient pressure or other unforeseen circumstances may prevent the hydraulic cylinder from effectively controlling the height of the ballast slab above the rail surface, causing the ballast slab to fall onto the rail. If the ballast slab falls onto the rail surface during vehicle operation due to hydraulic cylinder failure or other reasons, it will pose a serious safety hazard, potentially threatening safe operation and causing an accident. Currently, ballast leveling devices typically rely solely on hydraulic cylinders to prevent the ballast slab from accidentally falling, or they may have corresponding anti-fall devices installed inside the guide groove. However, these devices are prone to lateral movement and detachment due to vibration during use, thus losing their protective function. Furthermore, the narrow installation space inside makes installation and removal inconvenient, and their reliability is low, resulting in unsatisfactory performance. Utility Model Content
[0004] The purpose of this utility model is to provide a ballast leveling anti-fall device, which can effectively solve the problem of ballast plates falling down when the ballast leveling cylinder fails unexpectedly or the pressure is insufficient.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A ballast leveling device for preventing fall includes a ballast level and guide groove devices disposed on both sides of the ballast level, wherein the ballast level is located in the groove of the guide groove device and is slidably disposed along the length of the groove of the guide groove device.
[0007] The anti-fall device includes an adjusting rod, the front end of which is provided with a limiting block, the limiting block including two spaced-apart stops; the bottom of the guide groove device is provided with a limiting hole, after the front end of the adjusting rod and the limiting block pass through the limiting hole, the direction of the stopping block is rotated so that the bottom of the groove is locked between the two stopping blocks, and the front end of the adjusting rod extends into the groove to block the ballast plate that may fall off accidentally, preventing the ballast plate from falling onto the rail surface; the limiting block can only pass through the limiting hole in one direction, and cannot pass through after the angle is rotated.
[0008] Preferably, the fall arrestor further includes a ring seat, which is fixedly connected to the outer side of the bottom of the groove, and the adjusting rod is connected to the ring seat through a connector, one end of which is movably mounted on the ring seat.
[0009] Preferably, the adjusting rod includes a limiting rod and a handle, which are integrally formed in an L-shape. When the handle is arranged horizontally, the limiting block can pass through the limiting hole, and when the handle is arranged vertically, the limiting block cannot come out of the limiting hole.
[0010] Preferably, the fall protection device is provided in pairs, with the two fall protection devices respectively located on the bottom of the guide groove device on both sides of the ballast slab.
[0011] Preferably, the shape of the stop block near the front end of the adjusting rod and the limiting hole are both rhomboid / rectangular; the long diagonal / long side of the limiting hole is perpendicular to the sliding direction of the ballast plate. When the handle is horizontally arranged, the long diagonal / long side of the rhomboid / rectangular stop block is consistent with the long diagonal / long side of the limiting hole, and the stop block near the front end of the adjusting rod can pass through the limiting hole. The shapes of the stop block and the limiting hole can be other irregular / regular shapes. The stop block is required to ensure the following two points: first, the stop block can pass through the limiting hole at a certain angle; second, it cannot disengage from the limiting hole at other angles.
[0012] Preferably, the lifting ring seat has a U-shaped structure, and the connector has a plate-shaped structure. One end of the connector is connected to the lifting ring seat and has a connecting hole, through which it is slidably mounted on the lifting ring seat. The other end of the connector has a through hole, through which the adjusting rod passes and is slidably mounted.
[0013] Preferably, the adjusting rod is further provided with a retaining ring, and the connecting member is restricted to move on the adjusting rod between the limiting block and the retaining ring.
[0014] Preferably, the diameter of the through hole is smaller than the geometric diameter of the retaining ring and the limiting block.
[0015] The ballast leveling anti-fall device provided in the above technical solution prevents the device from shaking by locking the bottom of the guide groove device between two stops. It also acts as a fulcrum when the device is in operation, preventing the device from losing its effectiveness due to tilting. The part of the adjusting rod that extends out of the bottom of the groove can hold the ballast plate in place to prevent it from falling when it falls.
[0016] The lifting ring seat and connector are installed. When the ballast plate is being worked on, the adjusting rod is removed. Since the lifting ring seat is connected and fixed to the bottom of the trough, the entire anti-fall device will be suspended on the outside of the guide plate, which can effectively avoid the situation that the device will be lost or have nowhere to be placed after it is removed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the anti-fall device for ballast shown in Example 2;
[0018] Figure 2 This is a schematic diagram showing the installation and use of the ballast fall prevention device as shown in Example 2;
[0019] Figure 3 This is a schematic diagram of the bottom structure of the guide channel device.
[0020] In the diagram: 1. Lifting ring seat; 2. Connector; 3. Retaining ring; 4. Limiting block; 5. Adjusting rod; 6. Groove bottom; 61. Limiting hole. Detailed Implementation
[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. Example
[0022] A ballast track anti-fall device includes a ballast plate and guide groove devices disposed on both sides of the ballast plate. The ballast plate is located in the groove of the guide groove device and is slidably disposed along the length of the groove of the guide groove device. The anti-fall device includes an adjusting rod 5, which is L-shaped and includes a limiting rod and a handle. The front end of the limiting rod is provided with a limiting block 4, which includes two spaced diamond / rectangular stops. The bottom 6 of the guide groove device is provided with a transverse diamond / rectangular limiting hole 61. After the front end of the limiting rod and the limiting block 4 pass through the limiting hole 61, the direction of the stops is rotated so that the bottom 6 of the groove is locked between the two stops, and the front end of the limiting rod extends into the groove to block the ballast plate that may fall off accidentally, preventing the ballast plate from falling onto the rail surface.
[0023] For ease of description, the stop near the front end of the limiting rod is called the first stop, and the stop away from the front end of the adjusting rod is called the second stop. The long diagonal of the limiting hole 61 is perpendicular to the sliding direction of the ballast plate. When the handle is perpendicular to the ground, the long diagonal of the rhomboid / rectangular first stop is parallel to the sliding direction of the ballast plate. When the handle is horizontal to the ground, the rhomboid / rectangular first stop can pass through the limiting hole. After the first stop passes through the limiting hole, rotate the L-shaped adjusting rod to make the long diagonal of the first stop parallel to the sliding direction of the ballast plate. At this time, the bottom of the groove is stuck between the first and second stops. In practice, it is only necessary to ensure that the distance between the two stops is slightly greater than the thickness of the bottom of the groove 6 to avoid shaking of the entire device. The shape of the second stop can be arbitrary. It can be the same as or different from the first stop. If they are the same, it is convenient to observe the angle of the first stop and to remove it quickly.
[0024] Meanwhile, with the handle pointing downwards, gravity will automatically maintain this state, ensuring safety and stability during use. The insertion length of the front section of the limit rod should be sufficient to prevent the ballast sheet from falling, but it can also be adjusted according to the hardness and rigidity of the material used, such as being controlled to around 5cm.
[0025] To improve the barrier effect, two anti-fall devices can be installed. The two anti-fall devices are respectively installed on the bottom of the guide groove device on both sides of the ballast slab. There is a set of guide groove device and anti-fall device at each end of the ballast slab to ensure the movement of the ballast slab and prevent it from falling. Example
[0026] like Figures 1 to 3 As shown, a ballast leveling device for preventing fall includes a ballast leveling plate and guide groove devices (made of multiple welded plates, the ballast leveling plate moves up and down in a vertical guide groove in the middle of the guide groove device) disposed on both sides of the ballast leveling plate. The ballast leveling plate is located in the groove of the guide groove device and slides along the length of the groove. The device for preventing fall includes an adjusting rod 5, the front end of which is provided with a limiting block 4, the limiting block 4 including two spaced-apart stops. The bottom 6 of the guide groove device is provided with a transverse diamond-shaped limiting hole 61 (see reference). Figure 3 After the front section of the adjusting rod 5 and the limiting block 4 pass through the limiting hole 61, rotating the stop block direction causes the groove bottom 6 to be locked between the two stops. The front section of the adjusting rod 5 extends into the groove to block any accidentally detached ballast slabs, preventing them from falling onto the rail surface. The limiting block 4 can only pass through the limiting hole in one direction; after rotation, it cannot pass through. The anti-fall device also includes a lifting ring seat 1, which is fixedly connected to the outside of the groove bottom 6. The groove bottom, as... Figure 3As shown, the device has two longitudinal circular holes. The lifting ring seat 1 passes through the circular holes and is welded and fixed. The adjusting rod 5 is connected to the lifting ring seat 1 through the connecting piece 2. One end of the connecting piece 2 is movably mounted on the lifting ring seat 1. The adjusting rod 5 includes a limiting rod and a handle. The limiting rod and the handle are integrally formed in an L-shape. When the handle is horizontally arranged, the limiting block can pass through the limiting hole. When the handle is vertically arranged, the limiting block cannot disengage from the limiting hole.
[0027] The stop block near the front end of the limiting rod and the limiting hole 61 are both rhomboid / rectangular in shape. The long diagonal / long side of the limiting hole 61 is perpendicular to the sliding direction of the ballast plate. When the handle is horizontally arranged, the long diagonal / long side of the rhomboid / rectangular stop block is consistent with the long diagonal / long side of the limiting hole, and the stop block near the front end of the adjusting rod can pass through the limiting hole. The shapes of the stop block and the limiting hole can be other irregular / regular shapes. The stop block is required to ensure the following two points: first, the stop block can pass through the limiting hole at a certain angle; second, it cannot disengage from the limiting hole at other angles.
[0028] like Figure 1 and Figure 2 As shown, the lifting ring seat has a U-shaped structure, and the connecting piece 2 has a plate-like structure. One end of the connecting piece 2, which connects to the lifting ring seat 1, has a connecting hole, allowing it to slide on the lifting ring seat. The other end of the connecting piece 2 has a through hole, through which the adjusting rod passes and slides. A retaining ring 3 (welded and fixed) is also provided on the adjusting rod, restricting the movement of the connecting piece on the adjusting rod between the limiting block and the retaining ring. The diameter of the through hole is smaller than the geometric diameter of the retaining ring and the limiting block. The retaining ring is fixed to the limiting rod, which both limits the range of motion of the connecting piece and prevents the handle from separating from the connecting piece after the fall arrestor is removed.
[0029] When the ballast slab is not in operation and is in the raised position, place the fall arrestor in the position. Figure 2 As shown, the two stops of the fall arrestor are respectively engaged on both sides of the bottom plate of the guide trough device, ensuring that the fall arrestor does not shake excessively. The portion of the limiting rod located inside the trough bottom will then be precisely engaged within the ballast slab.
[0030] In addition, there is a set of guide groove devices and anti-fall devices at each end of the ballast slab to ensure the movement of the ballast slab and prevent it from falling.
[0031] In this embodiment, both the stop and the limiting hole are designed with a diamond-like structure. The limiting hole is in a horizontal position (the long diagonal of the diamond is in a horizontal position). After passing through the diamond hole, one of the diamond-shaped stops on the fall arrestor rotates 90° to keep the handle part of the handle vertically downward. The handle can automatically maintain this state due to gravity. At this time, the stop is in a vertical position (the long diagonal of the diamond stop is in a vertical position). The bottom of the groove is just stuck between the two stops, and the stops can limit the fall arrestor from shaking significantly with the vibration of the vehicle during use.
[0032] When removing or installing the fall arrestor, first turn the handle to align the diamond-shaped stop with the diamond-shaped hole on the bottom of the groove, and then you can easily pass the limit rod through the base plate for installation or removal.
[0033] When working on the ballast slab, the above-mentioned device is removed. Since the lifting ring seat is connected and fixed to the bottom of the trough, the entire anti-fall device will be suspended outside the guide trough, which can effectively avoid the situation that the device has nowhere to be placed or is lost after being removed.
[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. For those skilled in the art, after learning the contents of the present utility model, they can make several equivalent changes and substitutions without departing from the principle of the present utility model. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present utility model.
Claims
1. A ballast leveling anti-fall device, comprising a ballast leveling plate and guide groove devices disposed on both sides of the ballast leveling plate, wherein the ballast leveling plate is located within the groove of the guide groove device and is slidably disposed along the length direction of the guide groove device; characterized in that: The anti-fall device includes an adjusting rod, the front end of which is provided with a limiting block, the limiting block including two spaced-apart stops; the bottom of the guide groove device is provided with a limiting hole, after the front end of the adjusting rod and the limiting block pass through the limiting hole, the direction of the stopping block is rotated so that the bottom of the groove is locked between the two stopping blocks, and the front end of the adjusting rod extends into the groove to block the ballast plate that may fall off accidentally, preventing the ballast plate from falling onto the rail surface; the limiting block can only pass through the limiting hole in one direction, and cannot pass through after the angle is rotated.
2. The anti-fall device for ballast leveling according to claim 1, characterized in that: The fall arrestor also includes a ring seat, which is fixedly connected to the outer side of the bottom of the groove. The adjusting rod is connected to the ring seat through a connector, one end of which is movably mounted on the ring seat.
3. The anti-fall device for ballast leveling according to claim 1 or 2, characterized in that: The adjusting rod includes a limiting rod and a handle. The limiting rod and the handle are integrally formed in an L-shape. When the handle is horizontally arranged, the limiting block can pass through the limiting hole. When the handle is vertically arranged, the limiting block cannot come out of the limiting hole.
4. The anti-fall device for ballast leveling according to claim 3, characterized in that: The fall protection device is provided in a pair, with the two fall protection devices respectively located on the bottom of the guide groove device on both sides of the ballast slab.
5. The anti-fall device for ballast leveling according to claim 3, characterized in that: The shape of the stop block near the front end of the adjusting rod and the limiting hole are both rhomboid / rectangular; the long diagonal / long side of the limiting hole is perpendicular to the sliding direction of the ballast plate. When the handle is arranged horizontally, the long diagonal / long side of the rhomboid / rectangular stop block is consistent with the long diagonal / long side of the limiting hole, and the stop block near the front end of the adjusting rod can pass through the limiting hole.
6. The anti-fall device for ballast leveling according to claim 2, characterized in that: The lifting ring seat has a U-shaped structure, and the connector has a plate-shaped structure. One end of the connector is connected to the lifting ring seat and has a connecting hole, through which it is slidably mounted on the lifting ring seat. The other end of the connector has a through hole, through which the adjusting rod passes and is slidably mounted.
7. The ballast leveling anti-fall device according to claim 6, characterized in that: The adjusting rod is also provided with a retaining ring, and the connecting member is restricted to move on the adjusting rod between the limiting block and the retaining ring.
8. The ballast leveling anti-fall device according to claim 6, characterized in that: The diameter of the through hole is smaller than the geometric diameter of the retaining ring and the limiting block.