Railway yard speed control hydraulic retarder
By designing quick-release support components and dual-stage buffer pressure components, the problems of insufficient energy absorption and cumbersome installation of existing railway station speed-regulating hydraulic parking devices have been solved, achieving more efficient kinetic energy absorption and a simpler installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN ASPECT RAILWAY AUTOMATION EQUIP
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-05
AI Technical Summary
Existing hydraulic parking brakes for railway stations suffer from limitations in single-stage hydraulic buffer energy absorption, which affects braking performance and makes them prone to damage. Furthermore, they are cumbersome to install and slow to deploy.
The system employs a quick-release parking device support assembly and a two-stage speed-regulating buffer hydraulic parking assembly, including a support base plate, sloping guide side plates, bottom limit clamps, detachable limit clamps, support base, recessed mounting slots, and U-shaped limit mounting plates, to achieve segmented alignment installation. The two-stage speed-regulating buffer hydraulic parking assembly absorbs kinetic energy in segments through the middle and secondary buffer bases, hydraulic oil tank, extension rod, limit ring, and sliding sleeve.
It improves the energy absorption effect and installation efficiency of hydraulic parking devices, reduces equipment damage, simplifies the installation process, and increases deployment speed.
Smart Images

Figure CN224323993U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway parking, and in particular to a hydraulic parking device for speed regulation in railway stations. Background Technology
[0002] The railway station speed-regulating hydraulic stopper is an automated braking device used at the tail of railway marshalling yards or other lines where stopping and preventing runaway are required. It is mainly used to precisely control vehicle deceleration, stopping and preventing runaway. It mainly uses a hydraulic system to apply pressure to the train to achieve smooth braking and reliable parking of the vehicle.
[0003] Existing hydraulic speed control brakes for railway stations have certain drawbacks. Most of them use single-stage hydraulic buffer braking, which not only limits the energy absorption of a single hydraulic system, affecting the braking effect, but also causes significant damage to the brakes themselves. In addition, most of the existing hydraulic speed control brakes for railway stations are integrated, which makes them heavy and complicated to install, affecting the deployment speed.
[0004] Therefore, it is necessary to propose a hydraulic stop device for speed regulation in railway stations to solve the above problems. Utility Model Content
[0005] The main purpose of this utility model is to provide a hydraulic stop device for speed regulation in railway stations, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A railway station speed-regulating hydraulic parking device includes a quick-release parking device support assembly. The upper outer surface of the quick-release parking device support assembly is provided with a two-stage speed-regulating buffer hydraulic parking component. The quick-release parking device support assembly includes a support base plate, a sloping guide side plate, a bottom limiting clamp, a detachable limiting clamp, a support base, a recessed mounting slot, and a U-shaped limiting mounting plate. The two-stage speed-regulating buffer hydraulic parking component includes a central hydraulic buffer base, a secondary buffer base, a connecting base, a hydraulic oil tank, a central hydraulic extension rod, a lateral hydraulic extension rod, a limiting ring, a limiting sliding sleeve, and a parking support plate.
[0008] Preferably, the front end of the support base plate is provided with sloping guide side plates on both sides, the lower outer surface of the support base plate is provided with a bottom limiting clip, the outer surfaces of both sides of the support base plate are provided with detachable limiting clips, the upper outer surface of the support base plate is provided with a support base, the front middle of the support base plate is provided with a U-shaped limiting mounting plate, and the upper middle of the support base plate is provided with a concave mounting groove.
[0009] Preferably, the front two sides of the supporting base plate are integrally formed with the rear outer surface of the sloping guide side plate, the lower outer surface of the supporting base plate is integrally formed with the upper outer surface of the bottom limiting clamp, and the two outer surfaces of the supporting base plate are detachably connected to one outer surface of the detachable limiting clamp.
[0010] Preferably, the upper outer surface of the supporting base plate is detachably connected to the lower outer surface of the supporting base, the front middle part of the supporting base is integrally formed with the rear outer surface of the U-shaped limiting mounting plate, and the middle part of the U-shaped limiting mounting plate is detachably connected to the front middle part of the supporting base plate.
[0011] Preferably, secondary buffer bases are provided on both sides of the central hydraulic buffer base. A connecting base is provided on the outer surface of one end of both the central hydraulic buffer base and the secondary buffer base. A hydraulic oil tank is provided in the middle of the upper end of the connecting base. A central hydraulic extension rod is provided in the middle of the central hydraulic buffer base. A lateral hydraulic extension rod is provided in the middle of the secondary buffer base. A limit ring is provided in the middle of the lateral hydraulic extension rod. A limit sliding sleeve is provided on the outer wall of the lateral hydraulic extension rod. A parking support plate is provided on the outer surface of one end of the limit sliding sleeve and the central hydraulic extension rod.
[0012] Preferably, one end of the outer surface of the central hydraulic buffer base and the secondary buffer base is fixedly connected to the lower middle part of the connecting base, the upper middle part of the connecting base is detachably connected to the outer wall of the hydraulic oil tank, and the middle part of the central hydraulic buffer base is movably connected to the outer wall of the central hydraulic extension rod.
[0013] Preferably, the middle part of the secondary buffer base is movably connected to the outer wall of the lateral hydraulic extension rod, the middle part of the lateral hydraulic extension rod is welded to the inner wall of the limiting ring, the outer wall of the lateral hydraulic extension rod is movably connected to the inner wall of the limiting sliding sleeve, and the outer surface of one end of the limiting sliding sleeve and the middle hydraulic extension rod are detachably connected to the middle of one side of the parking support plate.
[0014] Preferably, the upper outer surface of the quick-release parking device support assembly is welded to the lower outer surface of the dual-stage speed-regulating buffer hydraulic parking assembly.
[0015] Beneficial effects
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This railway station speed-regulating hydraulic parking device, through the setting of a quick-release parking device support component including a support base plate, a sloping guide side plate, a bottom limit clamp, a detachable limit clamp, a support base, a concave installation slot and a U-shaped limit installation plate, can perform segmented alignment and installation of the hydraulic parking device, which facilitates its transportation and installation tools and has better deployment efficiency.
[0018] 2. This railway station speed-regulating hydraulic parking device, through the setting of a two-stage speed-regulating buffer hydraulic parking component, includes a central hydraulic buffer base, a secondary buffer base, a connecting base, a hydraulic oil tank, a central hydraulic extension rod, a lateral hydraulic extension rod, a limit ring, a limit sliding sleeve, and a parking support plate. In use, it can absorb the kinetic energy transmitted by the vehicle in stages, thereby improving the energy absorption parking effect by absorbing the kinetic energy in two stages. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a hydraulic speed-regulating parking device for railway stations according to this utility model;
[0020] Figure 2 This utility model relates to a hydraulic speed-regulating stop device for railway stations. Figure 1 Schematic diagram of the middle guide tube clamp assembly;
[0021] Figure 3 This utility model relates to a hydraulic speed-regulating stop device for railway stations. Figure 1 A schematic diagram of the clamping component.
[0022] In the diagram: 1. Quick-release parking device support assembly; 2. Two-stage speed-regulating buffer hydraulic parking assembly; 101. Support base plate; 102. Sloping guide side plate; 103. Bottom limit clamp; 104. Detachable limit clamp; 105. Support base; 106. Recessed mounting slot; 107. U-shaped limit mounting plate; 201. Central hydraulic buffer base; 202. Secondary buffer base; 203. Connecting base; 204. Hydraulic oil tank; 205. Central hydraulic extension rod; 206. Lateral hydraulic extension rod; 207. Limit ring; 208. Limit sliding sleeve; 209. Parking support plate. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figure 1-3As shown, a railway station speed-regulating hydraulic parking device includes a quick-release parking device support assembly 1. The upper outer surface of the quick-release parking device support assembly 1 is provided with a two-stage speed-regulating buffer hydraulic parking assembly 2. The quick-release parking device support assembly 1 includes a support base plate 101, a sloping guide side plate 102, a bottom limiting clamp 103, a detachable limiting clamp 104, a support base 105, a recessed mounting slot 106, and a U-shaped limiting mounting plate 107. The two-stage speed-regulating buffer hydraulic parking assembly 2 includes a central hydraulic buffer base 201, a secondary buffer base 202, a connecting base 203, a hydraulic oil tank 204, a central hydraulic extension rod 205, a lateral hydraulic extension rod 206, a limiting ring 207, a limiting sliding sleeve 208, and a parking support plate 209.
[0025] It should be noted that this utility model is a hydraulic speed-regulating parking device for railway stations. The quick-release parking device support assembly 1 includes a support base plate 101, a sloping guide side plate 102, a bottom limiting clamp 103, a detachable limiting clamp 104, a support base 105, a recessed mounting slot 106, and a U-shaped limiting mounting plate 107. In use, the support base plate 101 is first installed to the middle of the rail, and then connected to the support base plate 101 via the detachable limiting clamp 104, thus connecting the rail to the support base plate 101. After connection, the support base... The support base 105 is combined with the support base plate 101. During assembly, the support base plate 105 is guided by the sloping guide side plate 102 at the front end and the U-shaped limiting mounting plate 107. The concave mounting slot 106 at the bottom of the support base 105 is aligned with the support base plate 101, allowing for segmented alignment and installation of the hydraulic parking device. This facilitates transportation and improves the deployment efficiency of the installation tools. The dual-stage speed-regulating buffer hydraulic parking assembly 2 includes a central hydraulic buffer base 201, a secondary buffer base 202, and a connecting base 2. 03. The hydraulic oil tank 204, the central hydraulic extension rod 205, the lateral hydraulic extension rod 206, the limiting ring 207, the limiting sliding sleeve 208, and the parking support plate 209, in use, first come into contact with the vehicle through the parking support plate 209. The force on the parking support plate 209 is first transmitted to the central hydraulic buffer base 201 through the central hydraulic extension rod 205. The central hydraulic extension rod 205 squeezes the hydraulic oil inside the central hydraulic buffer base 201, causing it to flow back to the hydraulic oil tank 204. During the squeezing process, its kinetic energy is... In the energy absorption process, after the parking support plate 209 pushes the central hydraulic extension rod 205 and the limiting sliding sleeve 208 to a certain position, the limiting sliding sleeve 208 pushes the lateral hydraulic extension rod 206 through the limiting ring 207. The lateral hydraulic extension rod 206 squeezes the hydraulic oil in the two sets of secondary buffer bases 202 and returns it to the hydraulic oil tank 204 to achieve secondary absorption of kinetic energy. In use, the energy absorption can be carried out in stages according to the kinetic energy transmitted by the vehicle. By performing secondary kinetic energy absorption, the energy absorption parking effect is improved.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hydraulic stopper for speed regulation in railway stations, comprising a quick-release stopper support assembly (1), characterized in that: The upper outer surface of the quick-release parking device support assembly (1) is provided with a two-stage speed-regulating buffer hydraulic parking assembly (2). The quick-release parking device support assembly (1) includes a support base plate (101), a sloping guide side plate (102), a bottom limiting clamp (103), a detachable limiting clamp (104), a support base (105), a recessed mounting slot (106), and a U-shaped limiting mounting plate (107). The two-stage speed-regulating buffer hydraulic parking assembly (2) includes a central hydraulic buffer base (201), a secondary buffer base (202), a connecting base (203), a hydraulic oil tank (204), a central hydraulic extension rod (205), a lateral hydraulic extension rod (206), a limiting ring (207), a limiting sliding sleeve (208), and a parking support plate (209).
2. The hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The front sides of the support base plate (101) are provided with sloping guide side plates (102), the lower outer surface of the support base plate (101) is provided with a bottom limiting clip (103), the outer surfaces of both sides of the support base plate (101) are provided with detachable limiting clips (104), the upper outer surface of the support base plate (101) is provided with a support base (105), the front middle of the support base (105) is provided with a U-shaped limiting mounting plate (107), and the upper middle of the support base (105) is provided with a concave mounting slot (106).
3. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The front two sides of the support base plate (101) are integrally formed with the rear outer surface of the slope guide side plate (102). The lower outer surface of the support base plate (101) is integrally formed with the upper outer surface of the bottom limiting clamp (103). The two outer surfaces of the support base plate (101) are detachably connected to one outer surface of the detachable limiting clamp (104).
4. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The upper outer surface of the support base plate (101) is detachably connected to the lower outer surface of the support base (105). The front middle part of the support base (105) is integrally formed with the rear outer surface of the U-shaped limiting mounting plate (107). The middle part of the U-shaped limiting mounting plate (107) is detachably connected to the front middle part of the support base plate (101).
5. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: Secondary buffer bases (202) are provided on both sides of the central hydraulic buffer base (201). A connecting base (203) is provided on the outer surface of one end of both the central hydraulic buffer base (201) and the secondary buffer base (202). A hydraulic oil tank (204) is provided in the middle of the upper end of the connecting base (203). A central hydraulic extension rod (205) is provided in the middle of the central hydraulic buffer base (201). A lateral hydraulic extension rod (206) is provided in the middle of the secondary buffer base (202). A limit ring (207) is provided in the middle of the lateral hydraulic extension rod (206). A limit sliding sleeve (208) is provided on the outer wall of the lateral hydraulic extension rod (206). A parking support plate (209) is provided on the outer surface of one end of the limit sliding sleeve (208) and the central hydraulic extension rod (205).
6. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The outer surface of one end of the central hydraulic buffer base (201) and the secondary buffer base (202) is fixedly connected to the lower middle part of the connecting base (203). The upper middle part of the connecting base (203) is detachably connected to the outer wall of the hydraulic oil tank (204). The middle part of the central hydraulic buffer base (201) is movably connected to the outer wall of the central hydraulic extension rod (205).
7. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The middle part of the secondary buffer base (202) is movably connected to the outer wall of the lateral hydraulic extension rod (206), the middle part of the lateral hydraulic extension rod (206) is welded to the inner wall of the limiting ring (207), the outer wall of the lateral hydraulic extension rod (206) is movably connected to the inner wall of the limiting sliding sleeve (208), and the outer surface of one end of the limiting sliding sleeve (208) and the middle hydraulic extension rod (205) are detachably connected to the middle of one side of the parking support plate (209).
8. A hydraulic stop device for speed regulation in railway stations according to claim 1, characterized in that: The upper outer surface of the quick-release parking device support assembly (1) is welded to the lower outer surface of the dual-stage speed-regulating buffer hydraulic parking assembly (2).