Portable railway maintenance crossing device

By designing a portable railway track crossing device, which utilizes components such as limit frames, turntables, and pry bars to achieve automated track crossing, the inconvenience and compatibility issues of existing devices are solved, and construction efficiency and safety are improved.

CN224313973UActive Publication Date: 2026-06-02闫凯龙

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
闫凯龙
Filing Date
2025-05-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing railway track crossing device is inconvenient to operate, requiring workers to bend over repeatedly. Furthermore, the fixed-length handles cannot be flexibly adapted to different types of rails, and multiple people are needed to work together under heavy loads, resulting in low efficiency.

Method used

A portable railway track crossing device was designed, comprising a track crossing mechanism and an adjustment mechanism. It utilizes components such as a limit frame, turntable, pry bar, and ratchet to achieve automatic track crossing operations, and uses a drive motor and adjusting screw to achieve height adjustment and ensure safety.

Benefits of technology

It enables automated cross-line operations, reduces the risk of occupational lumbar spine injuries, improves construction efficiency and safety, adapts to the needs of different types of rails, and reduces the need for multi-person collaboration.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224313973U_ABST
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Abstract

The utility model discloses a portable railway work uses cross line device relates to railway work technical field, including fixed bottom plate, the top of fixed bottom plate is provided with cross line mechanism, the cross line mechanism includes spacing frame, the bottom surface of spacing frame is connected with fixed bottom plate slidingly, the inner wall rotationally connected with carousel of spacing frame, the inner wall slidingly connected with driven slide bar of carousel, one end of driven slide bar is fixedly connected with driven sleeve pipe, and the cooperation of parts in cross line mechanism is set up, realizes the cross line operation of steel rail automatically, guarantees the safety of steel rail lifting in the cross line process simultaneously, compared with traditional device, the applicant makes the operator not repeatedly bend the waist to complete the whole process operation, reduces the lumbar professional injury risk caused by the bending labor, and replaces the many people cooperative operation mode through the mechanical automation in heavy load, thereby making the device more have practical value.
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Description

Technical Field

[0001] This utility model relates to the field of railway engineering technology, specifically a portable railway engineering cross-line device. Background Technology

[0002] Railway track maintenance refers to the collaborative maintenance work carried out by track maintenance departments on cross-line bridges, turnouts, and adjacent lines. It covers core aspects such as fine-tuning of track geometry parameters, reinforcement of roadbed structure, rail flaw detection and defect monitoring. Through scientific scheduling and mechanized construction technology, it strengthens equipment inspection and hidden danger rectification, ensures the stability and structural safety of equipment in the intersection area of ​​different lines, guarantees the safe operation of trains across lines around the clock, and maintains the efficient connection of the railway network and the overall transportation efficiency.

[0003] A search revealed a Chinese patent with publication number CN221740770U, which discloses a rail crossing device. The device includes a base, a rotating plate rotatably mounted on the upper end of the base, a sliding component for sliding connection on the rotating plate, a moving block fixedly connected to the upper end of the sliding component, a rotating shaft rotatably mounted inside the moving block, and a baffle sleeved on the rotating shaft. This invention, by setting a rotatable baffle, allows the baffle to be rotated to a parallel state with the rotating plate when not in use.

[0004] While the above-mentioned solution can cross rails, it has obvious drawbacks in practical applications. Because the handle is flat against the ground surface, operators need to repeatedly bend over and pull the handle upwards, which not only increases the burden on the operator's lumbar spine and causes occupational injuries, but also the fixed-length handle design cannot flexibly adapt to the operational needs of different types of rails. Under heavy loads, multiple people are required to work together, resulting in low efficiency. To address these issues, we provide a portable railway track crossing device. Utility Model Content

[0005] The purpose of this invention is to provide a portable railway track crossing device to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable railway track crossing device, comprising a fixed base plate, a track crossing mechanism disposed above the fixed base plate, the track crossing mechanism comprising a limiting frame, the bottom surface of the limiting frame being slidably connected to the fixed base plate, a turntable being rotatably connected to the inner wall of the limiting frame, a driven slide rod being slidably connected to the inner wall of the turntable, and a driven sleeve being fixedly connected to one end of the driven slide rod;

[0007] The inner wall of the driven sleeve is slidably connected to a connecting slide rod, and both ends of the connecting slide rod are fixedly connected to pry bars. The inner wall of the pry bar is rotatably connected to a limit rod, and both ends of the limit rod are fixedly connected to a limit frame.

[0008] Preferably, a pry plate is fixedly connected to the end of the pry bar away from the connecting slide bar, a drive shaft is rotatably connected to the inner wall of the limiting frame, one end of the drive shaft is fixedly connected to the turntable, and a ratchet is fixedly connected to the outer surface of the drive shaft. By driving the drive shaft to rotate, the turntable and the ratchet can be driven to rotate synchronously.

[0009] Preferably, the inner wall of the limiting frame is rotatably connected to an adjusting rod, and one end of the adjusting rod is fixedly connected to a rotating handle. The rotating handle facilitates the driving of the adjusting rod to rotate, making it easier for the operator to release the ratchet reverse limit.

[0010] Preferably, a pawl is fixedly connected to the outer surface of the adjusting rod, a connecting rod is fixedly connected to the outer surface of the limiting frame, and a rotating plate is rotatably connected to the outer surface of the connecting rod. Through the synergistic action of the pawl and the ratchet, the situation of the pry bar tipping over due to the turntable reversing can be effectively prevented during the crossing process.

[0011] Preferably, a support spring is sleeved between the pawl and the rotating plate. One end of the support spring is fixedly connected to the pawl, and the end of the support spring away from the pawl is fixedly connected to the rotating plate. Through the elasticity of the support spring, the pawl is more stable during the process of limiting the ratchet.

[0012] Preferably, a drive motor is fixedly connected to the inner wall of the limiting frame, and the output end of the drive motor is fixedly connected to the drive shaft. By starting the drive motor, the drive shaft can be effectively driven to rotate.

[0013] Preferably, an adjusting screw is rotatably connected to the inner wall of the fixed base plate, the outer surface of the adjusting screw is threadedly connected to the limiting frame, a limiting slide rod is slidably connected to the outer surface of the limiting frame, and the two ends of the limiting slide rod are fixedly connected to the fixed base plate. By driving the limiting slide rod to rotate, the horizontal position of the pry bar can be effectively adjusted.

[0014] Preferably, the fixed base plate is provided with an adjustment mechanism, which includes a baffle. The bottom surface of the baffle is slidably connected to the pry plate. A mounting shell is fixedly connected to the outer surface of the baffle. A limit post is slidably connected to the inner wall of the mounting shell. A limit insertion hole adapted to the limit post is opened on the top surface of the pry plate. By inserting the limit post into the limit insertion hole, the baffle can be effectively limited.

[0015] Preferably, a baffle is fixedly connected to the outer surface of the limiting post, the outer surface of the baffle is slidably connected to the mounting shell, a limiting spring is sleeved on the outer surface of the limiting post, one end of the limiting spring is fixedly connected to the baffle, the end of the limiting spring away from the baffle is fixedly connected to the mounting shell, and a pull plate is fixedly connected to one end of the limiting post. The pull plate allows the operator to more easily pull the limiting post out of the limiting hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This portable railway track crossing device, through the coordinated arrangement of components in the crossing mechanism, enables automatic track crossing operations while ensuring the safety of rail lifting during the crossing process. Compared with traditional devices, this application allows operators to complete the entire process without repeatedly bending over, reducing the risk of lumbar spine injuries caused by bending over and replacing the multi-person collaborative operation mode with mechanical automation under heavy loads, thus making this device more practical.

[0018] 2. This portable railway track maintenance crossing device, through the coordinated arrangement of components in the adjustment mechanism, enables effective adjustment of the rail crossing height by adjusting the position of the baffle on the skid surface. By fine-tuning the lifting amount, it can ensure smooth track connection during construction and avoid stress concentration caused by excessive lifting. The visual scale on the skid surface, combined with the self-locking of the components in the adjustment mechanism, allows operators to quickly complete precise adjustments, significantly improving track maintenance efficiency and operational safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the cross-line mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the ratchet of this utility model;

[0022] Figure 4 This utility model Figure 3 Schematic diagram of the three-dimensional structure at point A in the middle;

[0023] Figure 5 This is an exploded view of the adjustment mechanism of this utility model.

[0024] The diagram is labeled as follows: 1. Fixed base plate; 2. Cross-line mechanism; 201. Limiting frame; 202. Turntable; 203. Driven slide bar; 204. Driven sleeve; 205. Connecting slide bar; 206. Pry bar; 207. Limiting rod; 208. Pry plate; 209. Drive shaft; 210. Ratchet; 211. Adjusting rod; 212. Rotating handle; 213. Pawl; 214. Connecting rod; 215. Turning plate; 216. Support spring; 217. Drive motor; 218. Adjusting screw; 219. Limiting slide bar; 3. Adjusting mechanism; 301. Baffle; 302. Mounting shell; 303. Limiting post; 304. Limiting insertion hole; 305. Baffle plate; 306. Limiting spring; 307. Pull plate. Detailed Implementation

[0025] 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.

[0026] Example 1:

[0027] like Figure 1 As shown, this utility model provides a technical solution for a portable railway track crossing device, including a fixed base plate 1. A power supply is installed on the outer surface of the fixed base plate 1, which can supply power to the electrical equipment in this application. Ground nails are fixedly installed on the bottom surface of the fixed base plate 1. By driving the ground nails deep into the ground, the device as a whole becomes more stable during use.

[0028] like Figure 1 and Figure 2 As shown, a cross-line mechanism 2 is provided above the fixed base plate 1. The cross-line mechanism 2 includes a limiting frame 201. The bottom surface of the limiting frame 201 is slidably connected to the fixed base plate 1. A turntable 202 is rotatably connected to the inner wall of the limiting frame 201. A driven slide rod 203 is slidably connected to the inner wall of the turntable 202. A driven sleeve 204 is fixedly connected to one end of the driven slide rod 203. By driving the turntable 202 to rotate, and with the coordinated action of the driven slide rod 203 and the driven sleeve 204, the connecting slide rod 205 can be driven to rotate around the limiting rod 207 as the axis.

[0029] The inner wall of the driven sleeve 204 is slidably connected to a connecting slide rod 205. The two ends of the connecting slide rod 205 are fixedly connected to pry bars 206. The inner wall of the pry bar 206 is rotatably connected to a limit rod 207. The two ends of the limit rod 207 are fixedly connected to the limit frame 201. The limit rod 207 effectively supports and limits the pry bar 206.

[0030] Example 2:

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a pry bar 206 is fixedly connected to a pry plate 208 at the end away from the connecting slide bar 205. A drive shaft 209 is rotatably connected to the inner wall of the limiting frame 201. One end of the drive shaft 209 is fixedly connected to the turntable 202. A ratchet 210 is fixedly connected to the outer surface of the drive shaft 209. By driving the pry bar 206 to move, the pry plate 208 can be driven to move synchronously, effectively prying up the rail.

[0032] An adjusting rod 211 is rotatably connected to the inner wall of the limiting frame 201. One end of the adjusting rod 211 is fixedly connected to a rotating handle 212. The rotating handle 212 facilitates the rotation of the adjusting rod 211, allowing the operator to more easily release the ratchet 210 from its reverse limit. A pawl 213 is fixedly connected to the outer surface of the adjusting rod 211. A connecting rod 214 is fixedly connected to the outer surface of the limiting frame 201. A rotating plate 215 is rotatably connected to the outer surface of the connecting rod 214. Through the synergistic action of the pawl 213 and the ratchet 210, the reverse rotation of the turntable 202 during the crossing process can effectively prevent the pry bar 208 from tipping over.

[0033] A support spring 216 is sleeved between the pawl 213 and the rotating plate 215. One end of the support spring 216 is fixedly connected to the pawl 213, and the other end of the support spring 216 away from the pawl 213 is fixedly connected to the rotating plate 215. Through the elasticity of the support spring 216, the pawl 213 is more stable in the process of limiting the ratchet 210.

[0034] A drive motor 217 is fixedly connected to the inner wall of the limit frame 201. The output end of the drive motor 217 is fixedly connected to the drive shaft 209. The control button of the drive motor 217 is installed on the outer surface of the fixed base plate 1. The drive motor 217 can be started and closed by the control button.

[0035] An adjusting screw 218 is rotatably connected to the inner wall of the fixed base plate 1. The outer surface of the adjusting screw 218 is threadedly connected to the limiting frame 201. A limiting slide rod 219 is slidably connected to the outer surface of the limiting frame 201. Both ends of the limiting slide rod 219 are fixedly connected to the fixed base plate 1. A rotating motor is fixedly installed inside the fixed base plate 1. The output end of the rotating motor is fixedly connected to one end of the adjusting screw 218. By starting the rotating motor, the adjusting screw 218 can be effectively driven to rotate.

[0036] Example 3:

[0037] like Figure 1 and Figure 5 As shown, an adjustment mechanism 3 is provided on the outside of the fixed base plate 1. The adjustment mechanism 3 includes a baffle 301. The bottom surface of the baffle 301 is slidably connected to the pry plate 208. A mounting shell 302 is fixedly connected to the outer surface of the baffle 301. A limit post 303 is slidably connected to the inner wall of the mounting shell 302. A limit insertion hole 304 adapted to the limit post 303 is provided on the top surface of the pry plate 208. By inserting the limit post 303 into the limit insertion hole 304, the baffle 301 can be effectively limited.

[0038] A retaining plate 305 is fixedly connected to the outer surface of the limiting post 303. The outer surface of the retaining plate 305 is slidably connected to the mounting shell 302. A limiting spring 306 is sleeved on the outer surface of the limiting post 303. One end of the limiting spring 306 is fixedly connected to the retaining plate 305, and the end of the limiting spring 306 away from the retaining plate 305 is fixedly connected to the mounting shell 302. A pull plate 307 is fixedly connected to one end of the limiting post 303. Through the elasticity of the limiting spring 306, the limiting post 303 is more stable when inserted into the limiting hole 304.

[0039] The drive motor 217 and the rotating motor mentioned in this application are common electrical devices in the prior art. This application will not elaborate on their models and internal structures. They can also be replaced by other power sources.

[0040] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0041] Working principle: First, the ground nails on the bottom surface of the fixed base plate 1 are driven deep into the ground. Then, the rotating motor inside the fixed base plate 1 drives the adjusting screw 218 to rotate. The rotation of the adjusting screw 218 causes the limiting frame 201 to slide on the top surface of the fixed base plate 1. The sliding of the limiting frame 201 causes the pry bar 208 to move synchronously, so that the pry bar 208 extends into the rail. Then, the upper pull plate 307 drives the limiting post 303 to move upward synchronously until the limiting post 303 slides out of the limiting insertion hole 304, thereby releasing the limiting of the baffle 301. At this time, the baffle 301 is pushed to slide on the surface of the pry bar 208, effectively adjusting the lifting height of the rail. Next, the drive motor 217 is started to drive the drive shaft 209 to rotate. The rotation of the drive shaft 209 drives the turntable 202. The rotation of the turntable 202, combined with the synergistic action of the driven slide bar 203 and the driven sleeve 204, effectively drives the pry bar 206 to rotate around the limit bar 207 as the axis. The movement of the pry bar 206 drives the pry plate 208 to move synchronously, effectively prying up the rail. This design enables the device to automatically perform rail crossing operations. At the same time, the synergistic action of the ratchet 210 and the pawl 213 ensures the safety of rail lifting during the crossing process. Compared with traditional devices, this application allows operators to complete the entire process without repeatedly bending over, which reduces the risk of occupational lumbar spine injuries caused by bending over. Furthermore, the mechanical automation replaces the multi-person collaborative operation mode under heavy loads, making this device more practical.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable railway track crossing device, comprising a fixed base plate (1), characterized in that: A cross-line mechanism (2) is provided above the fixed base plate (1). The cross-line mechanism (2) includes a limiting frame (201). The bottom surface of the limiting frame (201) is slidably connected to the fixed base plate (1). A turntable (202) is rotatably connected to the inner wall of the limiting frame (201). A driven slide rod (203) is slidably connected to the inner wall of the turntable (202). A driven sleeve (204) is fixedly connected to one end of the driven slide rod (203). The inner wall of the driven sleeve (204) is slidably connected to a connecting slide rod (205), and the two ends of the connecting slide rod (205) are fixedly connected to a pry bar (206). The inner wall of the pry bar (206) is rotatably connected to a limiting rod (207), and the two ends of the limiting rod (207) are fixedly connected to a limiting frame (201).

2. The portable railway track crossing device according to claim 1, characterized in that: The pry bar (206) is fixedly connected to a pry plate (208) at the end away from the connecting slide bar (205). The inner wall of the limiting frame (201) is rotatably connected to a drive shaft (209). One end of the drive shaft (209) is fixedly connected to a turntable (202). A ratchet (210) is fixedly connected to the outer surface of the drive shaft (209).

3. A portable railway track crossing device according to claim 1, characterized in that: The inner wall of the limiting frame (201) is rotatably connected to an adjusting rod (211), and one end of the adjusting rod (211) is fixedly connected to a rotating handle (212).

4. A portable railway track crossing device according to claim 3, characterized in that: The outer surface of the adjusting rod (211) is fixedly connected to a pawl (213), the outer surface of the limiting frame (201) is fixedly connected to a connecting rod (214), and the outer surface of the connecting rod (214) is rotatably connected to a rotating plate (215).

5. A portable railway track crossing device according to claim 4, characterized in that: A support spring (216) is sleeved between the pawl (213) and the rotating plate (215). One end of the support spring (216) is fixedly connected to the pawl (213), and the other end of the support spring (216) away from the pawl (213) is fixedly connected to the rotating plate (215).

6. A portable railway track crossing device according to claim 2, characterized in that: The inner wall of the limiting frame (201) is fixedly connected to a drive motor (217), and the output end of the drive motor (217) is fixedly connected to the drive shaft (209).

7. A portable railway track crossing device according to claim 1, characterized in that: An adjusting screw (218) is rotatably connected to the inner wall of the fixed base plate (1). The outer surface of the adjusting screw (218) is threadedly connected to the limiting frame (201). A limiting slide rod (219) is slidably connected to the outer surface of the limiting frame (201). Both ends of the limiting slide rod (219) are fixedly connected to the fixed base plate (1).

8. A portable railway track crossing device according to claim 2, characterized in that: An adjustment mechanism (3) is provided on the outside of the fixed base plate (1). The adjustment mechanism (3) includes a baffle (301). The bottom surface of the baffle (301) is slidably connected to the pry plate (208). An installation shell (302) is fixedly connected to the outer surface of the baffle (301). A limit post (303) is slidably connected to the inner wall of the installation shell (302). A limit insertion hole (304) adapted to the limit post (303) is opened on the top surface of the pry plate (208).

9. A portable railway track crossing device according to claim 8, characterized in that: A baffle (305) is fixedly connected to the outer surface of the limiting post (303). The outer surface of the baffle (305) is slidably connected to the mounting shell (302). A limiting spring (306) is sleeved on the outer surface of the limiting post (303). One end of the limiting spring (306) is fixedly connected to the baffle (305). The end of the limiting spring (306) away from the baffle (305) is fixedly connected to the mounting shell (302). A pull plate (307) is fixedly connected to one end of the limiting post (303).