Movable side wall and railway track maintenance vehicle

Abstract

The embodiment of the invention provides a movable side wall which is suitable for a railway track maintenance vehicle, the railway track maintenance vehicle comprises a vehicle frame, and the movable side walls are distributed on the two sides of the vehicle frame in the extending direction of the vehicle frame; the movable side wall comprises a wall body connected with the frame; one end of the guide supporting mechanism is arranged on the wall, the other end of the guide supporting mechanism is arranged on the frame, and the guide supporting mechanism drives the wall to move in the extending direction perpendicular to the frame under acting force; the power assisting mechanism is arranged on the wall body, and the power assisting mechanism can reciprocate in the extending direction of the wall body under the action force; and the lifting mechanism is arranged on the wall body and can move in the height direction of the wall body.

Description

Technical Field

[0001] The present application relates to the technical field of railway track line maintenance, and in particular to a movable side wall and a railway track maintenance vehicle. Background Art

[0002] In recent years, rail transit has achieved rapid development in China. With the long-term use of railway track lines, the demand for railway line inspection and maintenance is increasing. However, there are still the following problems at the construction site: when the adjacent line is not blocked for operation, construction workers illegally enter the adjacent line area, which poses a great risk of personal injury; open-air operations are greatly affected by environmental factors such as wind, sand, rain, snow, low temperature and hypoxia in the plateau, and night; construction in urban areas causes noise diffusion and light pollution that affect surrounding residential areas. In order to reduce the impact of construction, improve the working environment, and improve construction safety, it is urgent to develop a mobile side wall and railway track maintenance vehicle that enables construction workers to work inside the vehicle space. Summary of the invention

[0003] In order to solve the above-mentioned technical defects, a mobile side wall and railway track maintenance vehicle are provided in the embodiments of the present application, which enable construction personnel to work inside the vehicle space without being affected by the working area and environment.

[0004] According to a first aspect of an embodiment of the present application, there is provided a movable side wall, which is applicable to a railway track maintenance vehicle, wherein the railway track maintenance vehicle comprises a frame, and the movable side wall is distributed on both sides of the frame along an extension direction of the frame; the movable side wall comprises:

[0005] A wall connected to the vehicle frame;

[0006] A guide support mechanism, one end of which is arranged on the wall, and the other end of which is arranged on the frame, wherein the guide support mechanism is driven by the force to move the wall along an extension direction perpendicular to the frame;

[0007] A power-assisting mechanism is arranged on the wall, and the power-assisting mechanism can reciprocate along the extension direction of the wall under the action force;

[0008] The lifting mechanism is arranged on the wall and can move along the height direction of the wall.

[0009] Optionally, the guide support mechanism includes a first guide member, a second guide member and a first sliding assembly, one of the first guide member and the second guide member is arranged on the frame, and the other is arranged on the wall, and the first guide member and the second guide member can slide relative to each other; the first sliding assembly is arranged on one of the first guide member and the second guide member, and the first sliding assembly can slide on the other of the two.

[0010] Optionally, the first sliding assembly includes a first sliding member and a second sliding member, the first sliding member and the second sliding member are both arranged on the first guide member, and the first guide member is driven by the force to slide the first sliding member and the second sliding member on the second guide member.

[0011] Optionally, the first guide member is a guide frame, and the guide frame is arranged on the wall; the second guide member is a guide groove, and the guide groove is arranged on the frame.

[0012] Optionally, the first sliding member includes a first roller, a first clamping plate and a first roller, the first roller passes through the guide frame, the first roller and the first clamping plate are connected at both ends of the first roller, the first roller is located at an end of the first roller close to the guide groove, and can roll back and forth in the guide groove; the second sliding member includes a first supporting frame and a first guide wheel, the first supporting frame is arranged on a side of the guide frame close to the guide groove, the first guide wheel is arranged on the first supporting frame, and the first guide wheel can roll back and forth in the guide groove.

[0013] Optionally, the movable side wall also includes a power mechanism, which includes a power member, a first mounting seat and a second mounting seat, the first mounting seat is arranged on the frame, the second mounting seat is arranged on the wall, one end of the power member is connected to the first mounting seat, and the other end is connected to the second mounting seat; the power member drives the wall to slide along an extension direction perpendicular to the frame.

[0014] Optionally, there are multiple power mechanisms, and the multiple power mechanisms are respectively arranged at the upper part and the lower part of the wall.

[0015] Optionally, the power assist mechanism includes a guide rail, a movable frame, a third mounting seat, a mechanical arm and a suspension rod, the guide rail is arranged on the wall, the movable frame is slidably arranged on the guide rail, the third mounting seat is arranged on the movable frame, the mechanical arm is arranged on the third mounting seat, and the suspension rod is arranged on the mechanical arm.

[0016] Optionally, a lifting door assembly is provided on the wall, and the lifting door assembly includes a door body, a lifting door guide groove and a second sliding assembly, the lifting door guide groove is provided on the wall, the second sliding assembly is provided on the door body, and the door body slides back and forth on the lifting door guide groove through the second sliding assembly.

[0017] Optionally, the lifting mechanism includes a fourth mounting seat, a fifth mounting seat and a lifting member, the fourth mounting seat is arranged on the wall, the fifth mounting seat is arranged on the door body, and both ends of the lifting member are respectively connected to the fourth mounting seat and the fifth mounting seat; the lifting member drives the door body to slide along the lifting door guide groove.

[0018] Optionally, the second sliding assembly includes a third sliding member and a fourth sliding member, and the third sliding member and the fourth sliding member are both arranged on the door body, and the door body moves under the force to make the third sliding member and the fourth sliding member slide in the lifting door guide groove.

[0019] According to a second aspect of an embodiment of the present application, there is provided a railway track maintenance vehicle, comprising:

[0020] A vehicle frame, wherein the vehicle frame is hollow and a connecting beam is provided on the top, wherein the connecting beam connects the front end and the rear end of the vehicle frame;

[0021] A bogie is provided at the bottom of the frame and is used to connect to the rails.

[0022] Furthermore, the movable side wall as mentioned above is connected to the frame, and the movable side wall can move along an extension direction perpendicular to the frame under the action force.

[0023] The movable side walls provided in the embodiment of the present application are distributed on both sides of the frame along the extension direction of the frame, which include a wall body, a guide support mechanism, a power assist mechanism and a lifting mechanism. The guide support mechanism is driven by the force to move the wall body along the extension direction perpendicular to the frame. A relatively closed working area is formed by the extension and retraction of the movable side wall. The working area is not affected by environmental factors and has strong adaptability. The power assist mechanism can be reciprocated along the extension direction of the wall body by the force, which can reduce the labor intensity of the operators' hand-held machine operations and reduce the workload of the operators. The lifting mechanism drives the door body to move along the height direction of the wall, which is convenient for materials to enter and exit the movable side wall and increase the working space when working in the movable side wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 A schematic diagram of the overall structure of a railway track maintenance vehicle provided in an embodiment of the present application.

[0026] Figure 2 A schematic diagram of the partial structure of the movable side wall provided in an embodiment of the present application.

[0027] Figure 3 A schematic structural diagram of the guide support mechanism of the movable side wall provided in an embodiment of the present application.

[0028] Figure 4 A schematic diagram of the structure of the power mechanism for the movable side wall provided in an embodiment of the present application.

[0029] Figure 5A schematic structural diagram of a power assist mechanism for a movable side wall provided in an embodiment of the present application.

[0030] Figure 6 A schematic structural diagram of a lifting door assembly and a lifting mechanism for a movable side wall provided in an embodiment of the present application.

[0031] Reference numerals:

[0032] 1- Frame;

[0033] 2-movable side wall; 21-wall; 22-guide support mechanism; 221-first guide member; 222-second guide member; 223-first sliding assembly; 2231-first sliding member; 2232-first roller; 2233-first clamping plate; 2234-first roller; 2235-second sliding member; 2236-first support frame; 2237-first guide wheel; 23-assist mechanism; 231-guide rail; 232-movable frame; 23 3-third mounting seat; 234-mechanical arm; 235-suspender rod; 24-lifting mechanism; 241-fourth mounting seat; 242-fifth mounting seat; 25-power mechanism; 251-power member; 252-first mounting seat; 253-second mounting seat; 254-lifting member; 26-lifting door assembly; 261-door body; 262-lifting door guide groove; 263-second sliding assembly; 2631-third sliding member; 2632-fourth sliding member;

[0034] 3-negative pressure exhaust fan; 4-energy supply module; 5-lighting device;

[0035] 6-Connecting beam; 7-Bogie. DETAILED DESCRIPTION

[0036] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] In the process of implementing this application, the inventor found that the following problems exist at the construction site:

[0038] 1. When the adjacent line is not blocked for operation, construction workers illegally enter the adjacent line area, which poses a great risk of personal injury;

[0039] 2. Open-air operations are greatly affected by environmental factors such as wind, sand, rain, snow, low temperature and hypoxia in the plateau, and nighttime;

[0040] 3. Construction in urban areas will cause noise diffusion and light pollution affecting surrounding residential areas.

[0041] In order to reduce the impact of construction, improve the working environment and enhance construction safety, Figure 1 and Figure 2 As shown, a movable side wall 2 is provided in an embodiment of the present application, which is suitable for a railway track maintenance vehicle. The railway track maintenance vehicle includes a frame 1, and the movable side walls 2 are distributed on both sides of the frame 1 along the extension direction of the frame 1; the movable side wall 2 includes a wall 21 connected to the frame 1, a guide support mechanism 22 with one end arranged on the wall 21 and the other end arranged on the frame 1, and a power assist mechanism 23 and a lifting mechanism 24 arranged on the wall 21; wherein, the guide support mechanism 22 is driven by the force to move the wall 21 along the extension direction perpendicular to the frame 1; the power assist mechanism 23 can be reciprocated along the extension direction of the wall 21 under the force; the lifting mechanism 24 can move along the height direction of the wall 21.

[0042] The movable side wall 2 provided in the embodiment of the present application includes a wall 21, a guide support mechanism 22, a power-assisting mechanism 23 and a lifting mechanism 24. The guide support mechanism 22 is driven by the force to drive the wall 21 to move along the extension direction perpendicular to the frame 1. Through the extension and retraction of the movable side wall 2, a relatively closed working area is formed, which is not affected by environmental factors during operation and has strong adaptability; the power-assisting mechanism 23 can be reciprocated along the extension direction of the wall 21 under the force, which can reduce the labor intensity of the operator's hand-held machine operation and reduce the workload of the operator; the lifting mechanism 24 drives the door body 261 to move along the height direction of the wall 21, which is convenient for materials to enter and exit the movable side wall 2 and increase the working space when working in the movable side wall 2.

[0043] Furthermore, if Figure 3 As shown, the guide support mechanism 22 includes a first guide member 221, a second guide member 222 and a first sliding assembly 223. One of the first guide member 221 and the second guide member 222 is arranged on the frame 1, and the other is arranged on the wall 21. The first guide member 221 and the second guide member 222 can slide relative to each other; the first sliding assembly 223 is arranged on one of the first guide member 221 and the second guide member 222, and the first sliding assembly 223 can slide on the other of the two.

[0044] Specifically, the first guide member 221 is mounted and fixed on the wall 21, and the second guide member 222 is mounted and fixed on the frame 1; there are at least four guide support mechanisms 22, and when there are four guide support mechanisms 22, they are symmetrically distributed at the upper and lower parts of the wall 21. The guide support mechanism 22 located at the upper part of the wall 21 has its second guide member 222 welded to the upper connecting beam 6 of the frame 1, and the guide support mechanism 22 located at the lower part of the wall 21 has its second guide member 222 welded to the frame 1; there can also be six guide support mechanisms 22, four of which are arranged at both ends of the wall 21, and the other two are arranged on the upper side of the wall 21, and are arranged along the extension direction of the wall 21. It should be noted that the guide support mechanisms 22 need to be arranged in pairs.

[0045] Further, the first sliding assembly 223 includes a first sliding member 2231 and a second sliding member 2235, and the first sliding member 2231 and the second sliding member 2235 are both fixedly mounted on the first guide member 221. The first guide member 221 is driven by the force to slide the first sliding member 2231 and the second sliding member 2235 on the second guide member 222. Specifically, the first guide member 221 is a guide frame, which is mounted on the wall 21; the second guide member 222 is a guide groove, which is mounted on the frame 1, and the openings of the guide grooves need to be arranged relative to each other to prevent the wall 21 from moving in the extension direction of the frame 1. The relative movement of the first guide member 221 and the second guide member 222 can also be in the form of a pulley rail or gear transmission, which is not limited here.

[0046] The first sliding member 2231 includes a first roller 2232, a first clamping plate 2233 and a first roller 2234, the first roller 2234 passes through the guide frame, the first roller 2232 and the first clamping plate 2233 are connected at both ends of the first roller 2234, the first roller 2232 is located at one end of the first roller 2234 close to the guide groove, and can roll back and forth in the guide groove; the second sliding member 2235 includes a first support frame 2236 and a first guide wheel 2237, the first support frame 2236 is arranged on a side of the guide frame close to the guide groove and fixed on the guide frame, the first guide wheel 2237 is arranged on the first support frame 2236, and the first guide wheel 2237 can roll back and forth in the guide groove. By setting the first roller 2232, the wall 21 can be relatively easily unfolded, and the first roller 2232 is the bearing point of the wall 21, playing a load-bearing role. The first guide wheel 2237 is provided to ensure that the wall 21 is smoothly unfolded and does not move to the sides.

[0047] Preferably, there are at least two first rollers 2232 and at least two first guide wheels 2237, and the two first rollers 2232 and the first guide wheels 2237 are arranged alternately in sequence; the arrangement of the first rollers 2232 and the first guide wheels 2237 can also be adjusted according to actual needs and is not limited here.

[0048] Furthermore, if Figure 4 As shown, the movable side wall 2 also includes a power mechanism 25, which includes a power piece 251, a first mounting seat 252 and a second mounting seat 253. The first mounting seat 252 is arranged on the frame 1, and the second mounting seat 253 is arranged on the wall 21. One end of the power piece 251 is connected to the first mounting seat 252, and the other end is connected to the second mounting seat 253; the power piece 251 drives the wall 21 to slide along the extension direction perpendicular to the frame 1, and provides power for the extension and retraction of the wall 21. There are multiple power mechanisms 25, and the multiple power mechanisms 25 are respectively arranged at the upper and lower parts of the wall 21. Optionally, one of the multiple power mechanisms 25 is arranged below the guide support mechanism 22 and connected to the guide groove; the setting position of the power mechanism 25 can also be adjusted as needed, and no specific limitation is made here. Specifically, the power piece 251 can be a motor, a hydraulic cylinder, etc.

[0049] Furthermore, if Figure 5 As shown, the power-assisting mechanism 23 includes a guide rail 231, a movable frame 232, a third mounting seat 233, a mechanical arm 234 and a suspension rod 235. The guide rail 231 is arranged on the wall 21 along the extension direction of the wall 21; the movable frame 232 is slidably arranged on the guide rail 231, and can move back and forth along the extension direction of the wall 21 along the guide rail 231; the third mounting seat 233 is arranged on the movable frame 232, the mechanical arm 234 is arranged on the third mounting seat 233, and the suspension rod 235 is arranged on the mechanical arm 234. During the operation of small material handling and machinery and equipment, the mechanical arm 234 can be used to reduce the labor intensity of operators holding machinery and equipment, and reduce the workload of operators.

[0050] Furthermore, if Figure 6 As shown, a lifting door assembly 26 is provided on the wall 21, and the lifting door assembly 26 includes a door body 261, a lifting door guide groove 262 and a second sliding assembly 263. The door body 261 is located on the plane where the wall 21 is located, the lifting door guide groove 262 is provided on the wall 21, and the second sliding assembly 263 is provided on the door body 261. The relative sliding between the door body 261 and the lifting door guide groove 262 is achieved by the second sliding assembly 263 sliding back and forth in the lifting door guide groove 262.

[0051] The lifting mechanism 24 includes a fourth mounting seat 241, a fifth mounting seat 242 and a lifting member 254. The fourth mounting seat 241 is arranged on the wall 21, the fifth mounting seat 242 is arranged on the door body 261, and the two ends of the lifting member 254 are respectively connected to the fourth mounting seat 241 and the fifth mounting seat 242; the lifting member 254 drives the door body 261 to slide along the lifting door guide groove 262. Specifically, the lifting member 254 can be a component capable of driving lifting, such as a motor and a hydraulic cylinder, which is not limited here.

[0052] Furthermore, the second sliding assembly 263 includes a third sliding member 2631 and a fourth sliding member 2632 , both of which are disposed on the door body 261 , and the door body 261 moves under the force to make the third sliding member 2631 and the fourth sliding member 2632 slide in the lifting door guide groove 262 .

[0053] The third sliding member 2631 includes a second roller, a second clamping plate and a second roller, the second roller passes through the door body 261, the second roller and the second clamping plate are connected at both ends of the second roller, the second roller is located at one end of the second roller close to the lifting door guide groove 262, and can roll back and forth in the lifting door guide groove 262; the fourth sliding member 2632 includes a second support frame and a second guide wheel, the second support frame is arranged on one side of the door body 261 close to the lifting door guide groove 262 and is fixed on the door body 261, the second guide wheel is arranged on the second support frame, and the second guide wheel can roll back and forth in the lifting door guide groove 262.

[0054] There are at least two second rollers and at least two second guide wheels. The two second guide wheels can be located between the two second rollers. The two second rollers and the second guide wheels can also be arranged according to actual conditions, which is not limited here.

[0055] Furthermore, the wall 21 is also provided with a negative pressure exhaust fan 3, an energy supply module 4 and a lighting device 5. The negative pressure exhaust fan is located at the upper part of the wall 21 and is used for ventilation of the working space inside the wall 21; the energy supply module 4 is arranged on the wall 21 to provide electrical energy, hydraulic energy and wind energy to the equipment operating inside the wall 21, thereby realizing centralized energy supply; a plurality of lighting devices 5 are arranged at the lower part of the wall 21 to provide sufficient lighting for working inside the wall 21.

[0056] According to a second aspect of an embodiment of the present application, there is provided a railway track maintenance vehicle, comprising:

[0057] The frame 1 is hollow and has a connecting beam 6 on the top, which connects the front end and the rear end of the frame 1;

[0058] A bogie 7 is provided at the bottom of the frame 1 and is used to connect to the rails;

[0059] Furthermore, the movable side wall 2 is connected to the vehicle frame 1 , and the movable side wall 2 can move along an extension direction perpendicular to the vehicle frame 1 under the action of a force.

[0060] When the movable side wall 2 is extended outwardly along the lateral direction of the vehicle frame 1, sufficient working space can be provided for large-scale track operations such as track replacement, sleeper replacement, mud and mud treatment, etc. When the movable side wall 2 is retracted along the lateral direction of the vehicle frame 1, it is in the same plane with the outer wall of the vehicle frame 1, will not affect the appearance of the vehicle frame 1, and will not exceed the vehicle limit.

[0061] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A movable side wall, suitable for a railway track maintenance vehicle, the railway track maintenance vehicle comprising a vehicle frame, characterized in that: The movable side walls are distributed on both sides of the frame along the extension direction of the frame; the movable side walls include: A wall connected to the vehicle frame; A guide support mechanism, one end of which is arranged on the wall, and the other end of which is arranged on the frame, wherein the guide support mechanism is driven by the force to move the wall along an extension direction perpendicular to the frame; A power-assisting mechanism is arranged on the wall, and the power-assisting mechanism can reciprocate along the extension direction of the wall under the action force; The lifting mechanism is arranged on the wall and can move along the height direction of the wall.

2. The movable side wall according to claim 1, characterized in that: The guide support mechanism includes a first guide member, a second guide member and a first sliding assembly. One of the first guide member and the second guide member is arranged on the frame, and the other is arranged on the wall. The first guide member and the second guide member can slide relative to each other. The first sliding assembly is arranged on one of the first guide member and the second guide member, and the first sliding assembly can slide on the other of the two.

3. The movable side wall according to claim 2, characterized in that: The first sliding assembly includes a first sliding member and a second sliding member. The first sliding member and the second sliding member are both arranged on the first guide member. The first guide member is driven by the force to slide the first sliding member and the second sliding member on the second guide member.

4. The movable side wall according to claim 3, characterized in that: The first guide member is a guide frame, and the guide frame is arranged on the wall; the second guide member is a guide groove, and the guide groove is arranged on the vehicle frame.

5. The movable side wall according to claim 4, characterized in that: The first sliding member includes a first roller, a first clamping plate and a first roller shaft, the first roller shaft passes through the guide frame, the first roller and the first clamping plate are connected to both ends of the first roller shaft, the first roller is located at one end of the first roller shaft close to the guide groove, and can roll back and forth in the guide groove; The second sliding member includes a first support frame and a first guide wheel. The first support frame is arranged on a side of the guide frame close to the guide groove. The first guide wheel is arranged on the first support frame. The first guide wheel can roll back and forth in the guide groove.

6. The movable side wall according to claim 5, characterized in that: The movable side wall also includes a power mechanism, which includes a power member, a first mounting seat and a second mounting seat. The first mounting seat is arranged on the frame, and the second mounting seat is arranged on the wall. One end of the power member is connected to the first mounting seat, and the other end is connected to the second mounting seat; the power member drives the wall to slide along an extension direction perpendicular to the frame.

7. The movable side wall according to claim 6, characterized in that: There are multiple power mechanisms, and the multiple power mechanisms are respectively arranged at the upper part and the lower part of the wall.

8. The movable side wall according to any one of claims 1 to 7, characterized in that: The power-assisting mechanism includes a guide rail, a movable frame, a third mounting seat, a mechanical arm and a suspension rod, wherein the guide rail is arranged on the wall, the movable frame is slidably arranged on the guide rail, the third mounting seat is arranged on the movable frame, the mechanical arm is arranged on the third mounting seat, and the suspension rod is arranged on the mechanical arm.

9. The movable side wall according to claim 8, characterized in that: The wall is provided with a lifting door assembly, which includes a door body, a lifting door guide groove and a second sliding assembly. The lifting door guide groove is provided on the wall, and the second sliding assembly is provided on the door body. The door body slides back and forth on the lifting door guide groove through the second sliding assembly.

10. The movable side wall according to claim 9, characterized in that: The lifting mechanism includes a fourth mounting seat, a fifth mounting seat and a lifting member, the fourth mounting seat is arranged on the wall, the fifth mounting seat is arranged on the door body, and the two ends of the lifting member are respectively connected to the fourth mounting seat and the fifth mounting seat; the lifting member drives the door body to slide along the lifting door guide groove.

11. The movable side wall according to claim 10, characterized in that: The second sliding assembly includes a third sliding member and a fourth sliding member, and the third sliding member and the fourth sliding member are both arranged on the door body. The door body moves under the action force to make the third sliding member and the fourth sliding member slide in the lifting door guide groove.

12. A railway track maintenance vehicle, characterized in that: include: A vehicle frame, wherein the vehicle frame is hollow and a connecting beam is provided on the top, wherein the connecting beam connects the front end and the rear end of the vehicle frame; A bogie, disposed at the bottom of the frame and used for connecting to the rails; as well as, The movable side wall as described in any one of claims 1 to 11 is connected to the frame, and the movable side wall can move along an extension direction perpendicular to the frame under the action of a force.

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