Rail transportation equipment protection device for subway traffic transportation

Abstract

The invention provides a rail transportation equipment protection device for subway traffic transportation. Transportation equipment comprises a transportation pipe. The protection device is installed on the driving mechanism, the driving mechanism comprises a transport vehicle, a driving motor is arranged at the bottom of the transport vehicle, the protection device comprises three sets of sliding rods, and the sliding rods are installed on the upper end face of the transport vehicle. The device further comprises two clamping mechanisms used for clamping the conveying pipe, each clamping mechanism comprises a sliding plate, the sliding plates are slidably connected with the three sliding rods, two bearing rods are slidably connected into the sliding plates, variable-pitch blocks are arranged on the upper end faces of the bearing rods, and bearing springs are arranged on the outer surfaces of the bearing rods in a sleeving mode. According to the device, through a unique gravity driving clamping mechanism, the defect that traditional equipment depends on a motor to maintain the clamping state is overcome, and energy conservation, environmental protection and convenient operation are achieved.

Description

Technical Field

[0001] This invention relates to the field of rail transport technology, and more specifically, to a protective device for rail transport equipment used in subway transportation. Background Technology

[0002] Existing rail transport equipment for subway transportation suffers from insufficient operational complexity and convenience in handling the transport and positioning of heavy pipelines. Traditional pipeline transport systems, when dealing with large-diameter, heavy pipe components, lack effective adaptive clamping mechanisms. Operators need to manually adjust and position the pipes multiple times to achieve effective clamping. This traditional clamping method not only requires operators to have extensive experience and skilled expertise, but is also prone to uneven clamping force and positioning deviations due to human factors during actual operation, seriously affecting transport efficiency and safety. Especially in confined spaces such as subway tunnels, the loading, unloading, and transfer of heavy pipelines are even more difficult. Traditional equipment cannot provide sufficient operational flexibility and convenience. Operators often need to use complex auxiliary tools and multiple people to complete basic clamping operations. This not only increases labor and time costs, but also makes it difficult to meet the requirements of rapid response and efficient operation in emergency situations or under conditions of limited maintenance windows.

[0003] To maintain stable clamping of heavy-duty tubing, the system requires multiple high-power motors to operate continuously. These motors must remain energized throughout the transportation process to maintain clamping force, leading to increased energy consumption and operating costs. Secondly, the continuous operation of the motors poses a severe challenge to power supply during long-distance transportation, requiring large-capacity battery systems or a continuous connection to the power grid. This not only increases the weight and complexity of the equipment but also limits the flexibility and mobility of transportation. More importantly, if a power outage, motor failure, or control system malfunction occurs during transportation, the clamping force will be immediately lost, potentially causing the heavy-duty tubing to detach or shift unexpectedly. This could result in equipment damage and economic losses, and even serious safety accidents, threatening subway operation safety and personnel safety. Furthermore, the maintenance costs of multi-motor systems are high, requiring regular inspection, maintenance, and replacement, increasing the total life-cycle cost of the equipment. The complexity of the motor system also increases the failure rate, reducing the overall reliability and stability of the equipment. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a protective device for rail transport equipment in subway transportation, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a protective device for rail transport equipment used in subway transportation, wherein the transport equipment includes a transport pipe; the protective device is installed on a drive mechanism, the drive mechanism includes a transport vehicle, the bottom of the transport vehicle is provided with a drive motor, the protective device includes three sets of sliding rods, the sliding rods are installed on the upper end face of the transport vehicle; it also includes a clamping mechanism for clamping the transport pipe, the clamping mechanism is provided with two sets, including a sliding plate, the sliding plate is slidably connected to the three sets of sliding rods, two sets of load-bearing rods are slidably connected inside the sliding plate, the upper end face of the load-bearing rod is provided with a pitch block, the outer surface of the load-bearing rod is sleeved with a load-bearing spring, one end of the load-bearing spring is fixedly connected to the lower end face of the pitch block, and the other end is fixedly connected to the upper end face of the sliding plate, the surface of the pitch block is provided with multiple sets of pitch grooves, and fixed rods are provided in the pitch grooves at both ends. A fixed sleeve is provided at the other end of the fixed rod. An eccentric rod is rotatably connected inside the fixed sleeve. A rotating plate is fixedly connected to the side wall of the eccentric rod. Two sets of rotating plates are symmetrically arranged. Two sets of hydraulic pipes are provided at both ends of the rotating plates. A clamping rod is slidably connected inside the hydraulic pipes. A connecting rod is provided on the side wall of the rotating plate. A connecting tube is sleeved on the outer surface of the connecting rod. A clamping tube is sleeved on the outer surface of the connecting tube. Multiple sets of annular springs and multiple sets of push springs are provided between the clamping tube and the connecting tube. One end of the push spring is fixedly connected to the inner side wall of the clamping tube, and the other end is connected to a locking block. Multiple sets of slots adapted to the locking blocks are opened on the surface of the connecting tube. The locking blocks are embedded in the slots and slidably connected to the slots. A nut is threadedly connected to one end of the connecting rod. The side wall of the nut abuts against the side wall of the connecting tube. The clamping tube abuts against the outer side wall of the transport tube. The clamping rod abuts against the inner side wall of the transport tube.

[0006] Preferably, the output end of the drive motor is connected to a reducer, the output end of the reducer is connected to a rotating rod, the rotating rod is rotatably connected to the transport vehicle, the other end of the rotating rod is provided with a drive gear, a rotating shaft is rotatably connected to one side of the bottom of the transport vehicle, the two ends of the rotating shaft are provided with drive wheels, a driven gear is sleeved on the surface of the rotating shaft, the driven gear meshes with the drive gear, and two sets of driven wheels are rotatably connected to the other side of the bottom of the transport vehicle.

[0007] Preferably, a first hydraulic cavity is formed between the load-bearing rod and the inner wall of the slide plate, and a second hydraulic cavity is formed between the clamping rod and the inner wall of the hydraulic pipe.

[0008] Preferably, the sidewall of the skateboard is provided with two sets of first L-tubes, the first L-tubes are connected in communication with the first hydraulic chamber, the other end of the first L-tube is connected to a hose, the other end of the hose is connected to a second L-tube, and the other end of the second L-tube is connected to a rotating tube.

[0009] Preferably, the rotating tube is disposed inside the eccentric rod, a rotating ring is sleeved on the outer surface of the rotating tube, the rotating ring is rotatably connected to the inner side wall of the eccentric rod, and four sets of flow holes are opened on the surface of the rotating tube.

[0010] Preferably, the sidewall of the eccentric rod is respectively connected to a first transfer pipe and a second transfer pipe, the other end of the first transfer pipe is connected to a hydraulic pipe on one side of the rotating plate, and the other end of the second transfer pipe is connected to a hydraulic pipe on the other side of the rotating plate.

[0011] Preferably, a pressure rod is slidably connected to the lower end face of the load-bearing rod, and a first compression spring is sleeved on the outer surface of the pressure rod. One end of the first compression spring is fixedly connected to the pressure rod, and the other end is fixedly connected to the lower end face of the load-bearing rod. A threaded rod is threadedly connected to the lower end face of the pitch block, and a second compression spring is sleeved on the outer surface of the threaded rod. One end of the second compression spring is fixedly connected to the lower end face of the pitch block, and the other end is fixedly connected to the threaded rod.

[0012] Compared with existing technologies, this invention provides a protective device for rail transport equipment used in subway transportation, which has the following advantages: This protective device for rail transport equipment solves the drawbacks of traditional equipment that relies on motors to maintain the clamping state through a unique gravity-driven clamping mechanism, achieving energy saving, environmental protection and convenient operation. The weight of the transport pipe itself is transmitted to the clamping pipe, rotating plate, eccentric rod, fixed rod and pitch block in sequence through the force transmission path, and finally pushes the load-bearing rod to move down. This gravity transmission mechanism converts the weight of the transport pipe into the driving source of the clamping force, and can achieve a stable and reliable clamping effect without any power consumption. The compression energy storage design of the load-bearing spring ensures the continuity and stability of the clamping force throughout the transportation process, avoiding the risk of clamping failure caused by power interruption, control failure or mechanical failure of traditional motor drive systems.

[0013] The hydraulic transmission system further amplifies the effect of gravity drive. The downward movement of the load-bearing rod pushes the hydraulic oil in the first hydraulic chamber to flow through the pipeline system to the second hydraulic chamber. The incompressible nature of the hydraulic oil enables the effective transmission of force, so that the input gravity generates the output clamping force. This hydraulic auxiliary system not only improves the clamping force, but more importantly, it achieves the coordinated cooperation of internal and external clamping. The clamping rod supports the transport pipe from the inside, and the clamping pipe surrounds and fixes it from the outside, forming a stable clamping effect in all directions. The design of the rotating pipe and the flow hole ensures the smooth flow of hydraulic oil in the complex pipeline, improving the response speed and working efficiency of the entire hydraulic transmission system.

[0014] The device's adaptive adjustment capability can automatically adapt to transport pipes of different diameters, lengths, and weights, enhancing the equipment's versatility and practical value. The multiple sets of pitch grooves on the pitch block provide multiple positioning options for the fixing rod. Operators can quickly adjust the relative positions of the clamping mechanisms on both sides according to the specific dimensions of the transport pipe. The sliding adjustment function of the slide plate along the slide rod allows the distance between the two clamping mechanisms to be continuously adjusted within a large range, making it suitable for multi-specification pipe assemblies.

[0015] The symmetrical arrangement and free rotation design of the rotating plate endow the clamping mechanism with excellent positioning capabilities. When the transport tube is placed between the clamping mechanisms, the rotating plate can automatically adjust the angle according to the actual contour of the transport tube to ensure maximum contact between the clamping tube and the outer surface of the transport tube. This adaptive positioning not only improves the stability of clamping but also effectively disperses the clamping pressure, avoiding potential damage to the transport tube caused by local stress concentration. The sliding connection between the card block and the card slot, combined with the elastic buffering effect of the push spring, forms a locking mechanism. When the clamping tube is adjusted to the optimal angle, the card block will embed into the corresponding card slot and lock the position to prevent accidental loosening or displacement during transportation, ensuring the long-term stability of the clamping state.

[0016] The ease of operation is reflected in the simplification of the entire clamping and releasing process. The operator only needs to place the transport tube between the two sets of clamping mechanisms, and the subsequent clamping process is completed automatically by gravity drive. There is no need for complicated operating procedures or professional skills. Unloading is equally simple. When the transport tube is lifted, the rebound force of the load-bearing spring automatically drives the entire system back to the initial state, the hydraulic oil flows back along the original path, and the clamping rod retracts automatically. The entire release process does not require manual intervention, reducing operation time and manpower requirements.

[0017] The simplification of the overall structure and the increased integration of the device reduce the number of failure points and maintenance requirements, thereby lowering the operating costs throughout the entire life cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a protective device for rail transport equipment used in subway transportation according to the present invention; Figure 2 This is a schematic diagram of the transport vehicle and the sliding bar in this invention; Figure 3 This is a schematic diagram of the clamping mechanism in this invention; Figure 4 This is a cross-sectional view of the rotating plate and hydraulic pipe in this invention; Figure 5 This is a cross-sectional structural diagram of the eccentric rod and the load-bearing rod in this invention; Figure 6 This is a schematic diagram of the exploded structure of the clamping tube in this invention; Figure 7 This is a cross-sectional view of the clamping tube and connecting tube in this invention. Figure 8 This is a schematic diagram of the structure of the rotating tube and rotating ring in this invention; Figure 9 This is a schematic diagram of the rotating plate and connecting rod in this invention.

[0019] In the diagram: 11. Transport pipe; 21. Transport vehicle; 22. Slide rod; 23. Drive motor; 24. Reducer; 25. Rotating rod; 26. Drive gear; 27. Rotating shaft; 28. Drive wheel; 29. ​​Driven gear; 31. Slide plate; 32. Load-bearing rod; 33. Pitch block; 34. Load-bearing spring; 35. Pitch groove; 36. Fixed rod; 37. Fixed sleeve; 38. Eccentric rod; 39. Rotating plate; 210. Driven wheel; 310. Hydraulic pipe; 311. Clamping rod; 312. Connecting rod; 313. 314. First hydraulic chamber; 315. Second hydraulic chamber; 316. First L-tube; 317. Hose; 318. Second L-tube; 319. Rotating tube; 320. Rotating ring; 321. Flow hole; 322. First transfer tube; 323. Second transfer tube; 324. Connecting tube; 325. Clamping tube; 326. Ring spring; 327. Push spring; 328. Locking block; 329. Locking groove; 330. Pressure rod; 331. First compression spring; 332. Threaded rod; 333. Second compression spring; 334. Nut. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0023] Please see Figures 1 to 9A protective device for rail transport equipment used in subway transportation is disclosed, wherein the transport equipment includes a transport pipe 11; the protective device is installed on a drive mechanism, the drive mechanism including a transport vehicle 21, characterized in that: a drive motor 23 is provided at the bottom of the transport vehicle 21, the protective device includes three sets of sliding rods 22, the sliding rods 22 are installed on the upper end face of the transport vehicle 21, a reducer 24 is connected to the output end of the drive motor 23, a rotating rod 25 is connected to the output end of the reducer 24, the rotating rod 25 is rotatably connected to the transport vehicle 21, a drive gear 26 is provided at the other end of the rotating rod 25, a rotating shaft 27 is rotatably connected to one side of the bottom of the transport vehicle 21, drive wheels 28 are provided at both ends of the rotating shaft 27, a driven gear 29 is sleeved on the surface of the rotating shaft 27, the driven gear 29 meshes with the drive gear 26, and two sets of driven wheels 210 are rotatably connected to the other side of the bottom of the transport vehicle 21; It also includes a clamping mechanism for clamping the transport pipe 11. The clamping mechanism has two sets, including a sliding plate 31. The sliding plate 31 is slidably connected to three sets of sliding rods 22. Two sets of load-bearing rods 32 are slidably connected inside the sliding plate 31. The upper end face of the load-bearing rod 32 is provided with a pitch block 33. A load-bearing spring 34 is sleeved on the outer surface of the load-bearing rod 32. One end of the load-bearing spring 34 is fixedly connected to the lower end face of the pitch block 33, and the other end is fixedly connected to the upper end face of the sliding plate 31. Multiple sets of pitch grooves 35 are formed on the surface of the pitch block 33. Fixed rods 36 are provided in the pitch grooves 35 at both ends. Fixed sleeves 37 are provided at the other ends of the fixed rods 36. An eccentric rod 38 is rotatably connected inside the fixed sleeves 37. A rotating plate 39 is fixedly connected to the side wall of the eccentric rod 38. Two sets of rotating plates 39 are symmetrically arranged. Two sets of hydraulic pipes 310 are provided at both ends of each rotating plate 39. A clamping rod 311 is slidably connected inside each hydraulic pipe 310. A connecting rod 312 is provided on the side wall of the rotating plate 39. A connecting pipe 323 is sleeved on the outer surface of the connecting rod 312. A clamping pipe 324 is sleeved on the outer surface of the connecting pipe 323. Multiple sets of annular springs 325 and multiple sets of push springs 326 are provided between the clamping pipe 324 and the connecting pipe 323. One end of each push spring 326 is fixedly connected to the inner side wall of the clamping pipe 324, and the other end is connected to a locking block 327. Multiple sets of slots 328 adapted to the locking blocks 327 are formed on the surface of the connecting pipe 323. The locking blocks 327 are embedded in the slots 328 and slidably connected to them. One end of the connecting rod 312 is threaded with a nut 333, the sidewall of which abuts against the sidewall of the connecting pipe 323. The clamping pipe 324 abuts against the outer wall of the transport pipe 11, and the clamping rod 311 abuts against the inner wall of the transport pipe 11. A first hydraulic chamber 313 is formed between the load-bearing rod 32 and the inner wall of the slide plate 31, and a second hydraulic chamber 314 is formed between the clamping rod 311 and the inner wall of the hydraulic pipe 310. The sidewall of the slide plate 31 is provided with two sets of first L-tubes 315, which are connected to the first hydraulic chambers 313. The other end of the first L-tube 315 is connected to a hose 316, and the other end of the hose 316 is connected to a second L-tube 317. The other end of the second L-tube 317 is connected to a rotating pipe 318. The rotating tube 318 is disposed inside the eccentric rod 38. A rotating ring 319 is sleeved on the outer surface of the rotating tube 318. The rotating ring 319 is rotatably connected to the inner sidewall of the eccentric rod 38. Four sets of flow holes 320 are opened on the surface of the rotating tube 318. A first transfer tube 321 and a second transfer tube 322 are respectively connected through the sidewall of the eccentric rod 38. The other end of the first transfer tube 321 is connected through to one side of the hydraulic pipe 310 on the rotating plate 39. The other end of the second transfer tube 322 is connected through to the other side of the hydraulic pipe 310 on the rotating plate 39. A pressure rod 329 is slidably connected to the lower end face of the load-bearing rod 32. A first compression spring 330 is sleeved on the outer surface of the pressure rod 329. One end of the first compression spring 330 is fixedly connected to the pressure rod 329.The other end is fixedly connected to the lower end face of the load-bearing rod 32. A threaded rod 331 is threadedly connected to the lower end face of the pitch block 33. A second compression spring 332 is sleeved on the outer surface of the threaded rod 331. One end of the second compression spring 332 is fixedly connected to the lower end face of the pitch block 33, and the other end is fixedly connected to the threaded rod 331. The entire device uses the gravity of the transport pipe 11 for clamping. Initially, the clamping rod 311 is retracted within the hydraulic pipe 310. First, the operator places the transport pipe 11 between the two clamping mechanisms, bringing it into contact with the surface of the clamping pipe 324. The operator then gradually presses down on the clamping pipe 324. Under the gravity of the transport pipe 11, the rotating plate 39 rotates, and the clamping pipe 324 rotates to adjust its angle so that the outer wall of the transport pipe 11 abuts against the surfaces of all the clamping pipes 324. After the clamping pipe 324 is subjected to pressure, the annular spring 325 and the push spring 326 inside undergo slight deformation. The push spring 326 pushes the locking block 327 through the slot 328. The clamping tube 324 is fixed in place and no longer rotates. Simultaneously, the transport tube 11 is pressed down, and the weight of the transport tube 11 is transmitted to the rotating plate 39 through the clamping tube 324, and then to the eccentric rod 38. The eccentric rod 38 then transmits the weight to the fixed rod 36. The fixed rod 36 moves down and pushes the pitch block 33 to move down. The pitch block 33 pushes the load-bearing rods 32 on both sides below to move down. The load-bearing spring 34 is compressed. The threaded rod 331 moves down with the pitch block 33 until the lower end face of the threaded rod 331 abuts against the upper end face of the slide plate 31. The threaded rod 331 can share the weight borne by the load-bearing rods 32 on both sides, making the clamping mechanism more stable. The first hydraulic chamber 313, the second hydraulic chamber 314, the first L-tube 315, the second L-tube 317, the hose 316, the first transfer pipe 321, the second transfer pipe 322, and the rotating pipe 318 are all filled with hydraulic oil. The downward movement of the load-bearing rod 32 pushes the hydraulic oil in the first hydraulic chamber 313 into the first L-tube 315. The hydraulic oil continues to flow through the hose 316 and the second L-tube 317 into the rotating pipe 318, and then flows through the flow holes 320 on the surface of the rotating pipe 318 into the first transfer pipes 321 and the second transfer pipes 322 on both sides, and further into the second hydraulic chamber 310. The hydraulic oil in the pressure chamber 314 and the second hydraulic chamber 314 increases, which pushes the clamping rods 311 to extend. All the clamping rods 311 extend and abut against the inner wall of the transport pipe 11. The clamping rods 311 and the clamping pipe 324 work together to clamp the transport pipe 11. The load-bearing rod 32 moves down and drives the pressure rod 329 to move down synchronously until the lower end face of the pressure rod 329 abuts against the upper end face of the transport vehicle 21, fixing the slide plate 31 and fixing the position of the overall clamping mechanism on both sides. This achieves a stable clamping of the transport pipe 11 by its own weight, which is convenient for subsequent transportation. After the transport pipe 11 is fixed, the motor is started. The motor drives the rotating rod 25 to rotate through the reducer 24. The rotation of the rotating rod 25 drives the drive gear 26 to rotate, which in turn drives the driven gear 29 to rotate synchronously, driving the rotating shaft 27 and the two drive wheels 28 to rotate. The driven wheel 210 rotates accordingly, and the transport vehicle 21 begins to move forward along the track to transport the transport pipe 11. After reaching the target position, the staff needs to unload the transport pipe 11. When the transport pipe 11 is lifted, the pressure on the clamping mechanism is released, the load-bearing spring 34 rebounds, and pushes the pitch block 33, the fixing rod 36, etc., back to the initial position. The load-bearing rod 32 moves upward accordingly. The hydraulic oil that previously flowed into the second hydraulic chamber 314 flows back to the first hydraulic chamber 313 via the original path. The clamping rod 311 then retracts into the hydraulic pipe 310, releasing its contact with the inner wall of the transport pipe 11 and thus releasing the clamping and fixing of the transport pipe 11. The transport pipe 11 can then be lifted and removed. The fixed rods 36 on both sides of the clamping mechanism can be adjusted in relative position through the pitch groove 35 of the pitch block 33. At the same time, the adjusting threaded rod 331 can adjust the downward movement distance of the load-bearing rod 32. The sliding plates 31 of the clamping mechanisms on both sides can also slide along the sliding rod 22 to adjust the distance between the two sets of clamping mechanisms. This allows for the adaptation of transport pipes 11 of different thicknesses and lengths, improving adaptability.

[0024] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for rail transport equipment used in subway transportation, wherein the transport equipment includes a transport pipe (11); the protective device is installed on a drive mechanism, the drive mechanism including a transport vehicle (21), characterized in that: The transport vehicle (21) is equipped with a drive motor (23) at the bottom. The protection device includes three sets of slide rods (22), which are installed on the upper surface of the transport vehicle (21). It also includes a clamping mechanism for clamping the transport pipe (11). The clamping mechanism is provided in two sets, including a sliding plate (31). The sliding plate (31) is slidably connected to the three sets of slide rods (22). Two sets of load-bearing rods (32) are slidably connected inside the sliding plate (31). A pitch block (33) is provided on the upper surface of the load-bearing rod (32). The outer surface of the load-bearing rod (32) is covered with a sleeve. A load-bearing spring (34) is provided. One end of the load-bearing spring (34) is fixedly connected to the lower end face of the pitch block (33), and the other end is fixedly connected to the upper end face of the slide plate (31). The surface of the pitch block (33) is provided with multiple sets of pitch grooves (35). Fixed rods (36) are provided in the pitch grooves (35) at both ends. Fixed sleeves (37) are provided at the other end of the fixed rods (36). An eccentric rod (38) is rotatably connected in the fixed sleeves (37). A rotating plate (39) is fixedly connected to the side wall of the eccentric rod (38). Two sets of rotating plates (39) are symmetrically arranged. Two sets of hydraulic pipes (310) are provided at both ends of the rotating plate (39). A clamping rod (311) is slidably connected inside the hydraulic pipe (310). A connecting rod (312) is provided on the side wall of the rotating plate (39). A connecting pipe (323) is sleeved on the outer surface of the connecting rod (312). A clamping pipe (324) is sleeved on the outer surface of the connecting pipe (323). Multiple sets of annular springs (325) are provided between the clamping pipe (324) and the connecting pipe (323). Multiple sets of push springs (326) are also provided. One end of the push spring (326) is connected to the inside of the clamping pipe (324). The side wall is fixedly connected, and the other end is connected to a locking block (327). The surface of the connecting tube (323) is provided with multiple sets of slots (328) that are adapted to the locking block (327). The locking block (327) is embedded in the slot (328) and slidably connected to the slot (328). One end of the connecting rod (312) is threadedly connected to a nut (333). The side wall of the nut (333) abuts against the side wall of the connecting tube (323). The clamping tube (324) abuts against the outer side wall of the transport tube (11). The clamping rod (311) abuts against the inner side wall of the transport tube (11).

2. The protective device for rail transport equipment in subway transportation according to claim 1, characterized in that: The output end of the drive motor (23) is connected to a reducer (24), the output end of the reducer (24) is connected to a rotating rod (25), the rotating rod (25) is rotatably connected to the transport vehicle (21), the other end of the rotating rod (25) is provided with a drive gear (26), one side of the bottom of the transport vehicle (21) is rotatably connected to a rotating shaft (27), both ends of the rotating shaft (27) are provided with drive wheels (28), the surface of the rotating shaft (27) is fitted with a driven gear (29), the driven gear (29) meshes with the drive gear (26), and the other side of the bottom of the transport vehicle (21) is rotatably connected to two sets of driven wheels (210).

3. The protective device for rail transport equipment in subway transportation according to claim 1, characterized in that: A first hydraulic cavity (313) is formed between the load-bearing rod (32) and the inner wall of the slide plate (31), and a second hydraulic cavity (314) is formed between the clamping rod (311) and the inner wall of the hydraulic pipe (310).

4. A protective device for rail transport equipment in subway transportation according to claim 3, characterized in that: The side wall of the slide plate (31) is provided with two sets of first L tubes (315). The first L tubes (315) are connected to the first hydraulic chamber (313). The other end of the first L tubes (315) is connected to a hose (316). The other end of the hose (316) is connected to a second L tube (317). The other end of the second L tube (317) is connected to a rotating tube (318).

5. A protective device for rail transport equipment in subway transportation according to claim 4, characterized in that: The rotating tube (318) is located inside the eccentric rod (38). A rotating ring (319) is fitted on the outer surface of the rotating tube (318). The rotating ring (319) is rotatably connected to the inner wall of the eccentric rod (38). Four sets of flow holes (320) are opened on the surface of the rotating tube (318).

6. A protective device for rail transport equipment in subway transportation according to claim 5, characterized in that: The side wall of the eccentric rod (38) is respectively connected to a first transfer pipe (321) and a second transfer pipe (322). The other end of the first transfer pipe (321) is connected to a hydraulic pipe (310) on one side of the rotating plate (39), and the other end of the second transfer pipe (322) is connected to a hydraulic pipe (310) on the other side of the rotating plate (39).

7. A protective device for rail transport equipment in subway transportation according to claim 6, characterized in that: The lower end face of the load-bearing rod (32) is slidably connected to a pressure rod (329). A first compression spring (330) is sleeved on the outer surface of the pressure rod (329). One end of the first compression spring (330) is fixedly connected to the pressure rod (329), and the other end is fixedly connected to the lower end face of the load-bearing rod (32). A threaded rod (331) is threadedly connected to the lower end face of the pitch block (33). A second compression spring (332) is sleeved on the outer surface of the threaded rod (331). One end of the second compression spring (332) is fixedly connected to the lower end face of the pitch block (33), and the other end is fixedly connected to the threaded rod (331).

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