Rail transit vehicle maintenance device and method

Abstract

The present application provides a rail transit vehicle maintenance device and method, which relate to the field of vehicle maintenance. The rail transit vehicle maintenance device includes: a trench for a first user or a second user to walk to inspect the vehicle; a first walking channel that can be connected to the trench and is used for the first user to walk; a second walking channel that can be connected to the trench and is used for the second user to walk; a connecting structure that is used to connect the first walking channel and the trench in a first state, and connect the second walking channel and the trench in a second state; wherein the connecting structure can switch between the first state and the second state. This rail transit vehicle maintenance device uses the first user and the second user to jointly inspect the vehicle, which ensures the work quality and work efficiency of the vehicle maintenance, and eliminates the safety hazards caused by the first user and the second user entering the trench at the same time.

Description

Technical Field

[0001] The present application relates to the field of vehicle maintenance, and in particular to a rail transit vehicle maintenance device and method. Background Art

[0002] Vehicles used in rail transit need to be regularly inspected and maintained. The relevant inspection and maintenance work can be completed by specialized inspection and maintenance personnel. However, due to the harsh inspection and maintenance environment and the large workload involved, if the inspection and maintenance personnel work for a long time, it may affect the inspection and maintenance quality and retrieval efficiency. However, if robots are used for inspection and maintenance, there is a problem of insufficient inspection and maintenance coverage, and the work quality and efficiency cannot be guaranteed. Summary of the invention

[0003] In view of this, an embodiment of the present application provides a rail transit vehicle maintenance device and method to solve the problem of how to ensure the work quality and work efficiency of vehicle maintenance.

[0004] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a rail transit vehicle maintenance device, including: a trench for a first user or a second user to walk in to inspect a vehicle; a first walking channel that can be connected to the trench and is used for the first user to walk; a second walking channel that can be connected to the trench and is used for the second user to walk; a connecting structure that is used to connect the first walking channel and the trench in a first state, and connect the second walking channel and the trench in a second state; wherein the connecting structure can switch between the first state and the second state.

[0006] Furthermore, the trenches are provided in plurality, the trenches are arranged at intervals, and the first walking passage can be connected to each trench.

[0007] Furthermore, the connection structure is provided in plurality, and each of the connection structures corresponds to one of the trenches.

[0008] Furthermore, one end of the connecting structure is connected to the trench, and the other end of the connecting structure is used to communicate with the first walking channel or the second walking channel; in the first state, the other end is connected with the first walking channel, and in the second state, the other end is connected with the second walking channel.

[0009] Furthermore, the first walking channel is located below the second walking channel; part of the connecting structure moves horizontally in the vertical direction to form a flat plate or a step to switch between the first state and the second state.

[0010] Furthermore, the connection structure includes at least two plates and at least two telescopic parts, each of the plates corresponds to one telescopic part, and each telescopic part is used to control the height of the corresponding plate; the at least two plates are used to form the flat plate or step.

[0011] Furthermore, the first walking channel is located below the second walking channel; and the connecting structure rotates in a vertical plane to switch between the first state and the second state.

[0012] Furthermore, it also includes a track, which is laid above the ditch and is used for parking the vehicle.

[0013] An embodiment of the present application also provides a rail transit vehicle maintenance method, comprising the following steps: determining that a vehicle is parked in a warehouse; determining a connection structure to be in a first state, so that the connection structure connects a first walking passage for a first user to walk and a trench for repairing the vehicle; determining the position of the first user; if the first user is located in the trench, maintaining the connection structure in the first state; if the first user is located in the first walking passage, switching the connection structure to a second state, so that the connection structure connects a second walking passage for a second user to walk and the trench for repairing the vehicle.

[0014] Furthermore, the method further includes the following steps: determining the position of the second user; if the second user is in the trench, maintaining the connection structure in the second state; if the second user is in the second walking passage, switching the connection structure to the first state.

[0015] The rail transit vehicle maintenance device and method provided by the embodiment of the present application has a connection structure that can switch between a first state in which the first walking channel and the trench are connected and a second state in which the second walking channel and the trench are connected. After determining that the vehicle is parked in the warehouse, the connection structure is determined to be in the first state, at which time the first user (which can be a robot) can enter the trench for maintenance work; when the first user is in the trench, the connection structure is maintained in the first state, at which time the second user (which can be a maintenance personnel) cannot enter the trench through the second walking channel of the connection structure. When the connection structure switches to the second state, the second user can enter the trench, but the first user cannot. Therefore, the present application utilizes the first user and the second user to jointly perform maintenance on the vehicle, which ensures the work quality and work efficiency of the vehicle maintenance, and eliminates the potential safety hazards caused by the first user and the second user entering the trench at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a rail transit vehicle maintenance device in one state provided in an embodiment of the present application;

[0017] Figure 2 A cross-sectional view of a rail transit vehicle maintenance device in one state provided in an embodiment of the present application;

[0018] Figure 3 A schematic diagram of the structure of the rail transit vehicle maintenance device provided in an embodiment of the present application in another state;

[0019] Figure 4 A cross-sectional view of the rail transit vehicle maintenance device provided in an embodiment of the present application in another state;

[0020] Figure 5 for Figure 4 An enlarged view of part A.

[0021] Description of Reference Numerals

[0022] 100 - rail transit vehicle maintenance device; 110 - second walking channel; 120 - first walking channel; 130 - track; 140 - trench; 150 - connection structure; 151 - plate; 152 - telescopic member; 210 - second user; 220 - first user. DETAILED DESCRIPTION

[0023] The various specific technical features in the various embodiments described in the specific implementation methods can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0024] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] It should be noted that the terms "first\second" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that "first\second" can be interchanged with a specific order or sequence where permitted. It should be understood that the objects distinguished by "first\second" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0026] like Figure 1 As shown, the present application provides a rail transit vehicle maintenance device 100, which can be applied to subways, high-speed railways or other vehicles that need maintenance, etc. In this application, the subway is taken as an example for illustration.

[0027] like Figure 1 As shown, the working principle of the rail transit vehicle maintenance device 100 is briefly described. Since a vehicle has a large number of parts that need to be repaired on the vehicle chassis, the maintenance personnel or machines need to repair the vehicle under the vehicle, and the space under the vehicle is small, which makes it difficult for the maintenance personnel or machines to work. Therefore, the vehicle is first parked above the trench 140, and then the maintenance personnel or machines can repair the vehicle in the trench 140 to meet the maintenance personnel or machines The requirements for the working space.

[0028] like Figure 1 As shown, the rail transit vehicle maintenance device 100 includes a trench 140 , a first walking channel 120 , a second walking channel 110 and a connecting structure 150 .

[0029] The trench 140 is used for the first user 220 or the second user 210 to walk and inspect the vehicle. Here, the first user 220 can be a person or machine to be inspected, and the second user 210 can be a person or machine to be inspected different from the first user 220. In the following embodiments, the first user 220 is a machine to be inspected and the second user 210 is a person to be inspected. Of course, in other embodiments of the present application, the first user 220 and the second user 210 can be two machines to be inspected, or two people to be inspected, as long as the first user 220 and the second user 210 can both walk in the trench 140 and inspect the vehicle.

[0030] The first walking passage 120 is used for the first user 220 to walk. Specifically, the first walking passage 120 can be a platform, a rail, or a pipeline, as long as it can be used for the first user 220 to walk and park. The first walking passage 120 can be connected to the ditch 140 so that the first user 220 can walk between the first walking passage 120 and the ditch 140. The second walking passage 110 is used for the second user 210 to walk. Specifically, the second walking passage 110 can be a platform, a rail, or a pipeline, as long as it can be used for the second user to walk and park. The second walking passage 110 can be used to communicate with the ditch 140 so that the second user 210 can walk between the second walking passage 110 and the ditch 140.

[0031] The connection structure 150 has a first state and a second state. In the first state (see Figure 1 and Figure 2), the connecting structure 150 connects the first walking channel 120 and the trench 140. Specifically, the connecting structure 150 and the first walking channel 120 and the connecting structure 150 and the trench 140 can be in a mutually abutting or partially overlapping relationship. Mutually abutting means that the ends of the two corresponding objects are just in contact to form a connecting relationship, and partially overlapping means that there are partially overlapping areas of the two corresponding objects to form a connecting relationship; in this way, the first user 220 can directly enter the connecting structure 150 from the first walking channel 120 and the trench 140. There can also be a gap between the connecting structure 150 and the first walking channel 120 and / or between the connecting structure 150 and the trench 140, as long as the gap does not affect the first user 220 from entering the connecting structure 150 from the first walking channel 120 and the trench 140. In the second state (see Figure 3 and Figure 4 ), the connection structure 150 is connected to the second walking passage 110 and the trench 140. Specifically, the connection structure 150 and the second walking passage 110 and the connection structure 150 and the trench 140 may abut against or partially overlap each other, so that the second user 210 can directly enter the connection structure 150 from the second walking passage 110 and the trench 140; there may also be a gap between the connection structure 150 and the second walking passage 110 and / or between the connection structure 150 and the trench 140, as long as the gap does not affect the second user 210 from the second walking passage 110 and the trench 140 to enter the connection structure 150.

[0032] The connection structure 150 can be switched between a first state and a second state. Specifically, when the connection structure 150 is in the first state, the second walking passage 110 and the trench 140 cannot be connected, that is, the second user 210 cannot enter the trench 140 through the second walking passage 110; when the connection structure 150 is in the second state, the first walking passage 120 and the trench 140 cannot be connected, that is, the first user 220 cannot enter the trench 140 through the first walking passage 120.

[0033] After the rail transit vehicle maintenance device of the embodiment of the present application determines that the vehicle is parked in the warehouse, the connection structure is determined to be in the first state, at which time the first user can enter the trench for maintenance work; when the first user is in the trench, the connection structure is kept in the first state, at which time the second user cannot enter the trench through the second walking passage of the connection structure. When the connection structure is switched to the second state, the second user can enter the trench, but the first user cannot. Therefore, the embodiment of the present application eliminates the potential safety hazard caused by the first user and the second user entering the trench at the same time.

[0034] like Figure 1As shown, in some embodiments of the present application, the trench 140 is set to multiple, and multiple trenches 140 can be used to repair vehicles, thereby improving work efficiency. Multiple trenches 140 are arranged at intervals, and multiple trenches 140 arranged at intervals can be used for multiple vehicles to be repaired at the same time. Of course, in other embodiments of the present application, some trenches 140 can also cross each other, as long as they can be used for vehicles to park on them for repair during part of the time. The first walking channel 120 can be connected to each trench 140. The first user 220 can walk in the first walking channel 120 to enter any trench 140, so that the first user 220 can walk directly to the first walking channel 120 after the current trench 140 is completed, and then directly walk to the next trench 140 that needs to be worked, which is convenient for operation. Of course, in other embodiments of the present application, the first walking channel 120 can also only be connected to part of the trench 140, so that the first user 220 can walk in the first walking channel 120 to enter any trench 140 connected to the first walking channel 120.

[0035] like Figure 1 and Figure 3 As shown, in some embodiments of the present application, a plurality of connection structures 150 are provided, and each connection structure 150 corresponds to a trench 140. Each trench 140 is adjusted using the corresponding connection structure 150, so that when the first user 220 is located in a trench 140, the second user 210 cannot enter the trench 140, and when the second user 210 is located in a trench 140, the first user 220 cannot enter the trench 140, so as to ensure the safety of the maintenance work.

[0036] like Figure 1 and Figure 3 As shown, in some embodiments of the present application, one end of the connection structure 150 is connected to the trench 140, and the other end of the connection structure 150 is used to communicate with the first walking channel 120 or the second walking channel 110. Here, the connection structure 150 is connected to the trench 140 but can rotate or translate relative to the trench 140, so as to switch between the first state and the second state; the movement mode of the connection structure 150 is not limited, and it is only required that one end of the connection structure 150 can remain connected to the trench 140. By adjusting the connection structure 150 that is movably connected to the trench 140, the connection structure 150 can be switched between the first state of being connected to the trench 140 and the first walking channel 120 and the second state of being connected to the trench 140 and the second walking channel 110.

[0037] like Figure 1 and Figure 3As shown, in some embodiments of the present application, the first walking passage 120 can be arranged below the second walking passage 110. If the first walking passage 120 and the ditch 140 are on the same horizontal plane, then in the first state, the connection structure 150 can form a flat plate to connect the ditch 140 and the first walking passage 120, and the first user 220 can walk between the ditch 140 and the first walking passage 120 using the flat-plate-shaped connection structure 150; in the second state, the connection structure 150 can form a step to connect the ditch 140 and the second walking passage 110, and the second user 210 can walk between the ditch 140 and the second walking passage 110 using the step-shaped connection structure 150.

[0038] In other embodiments, the second walking passage 110 and the ditch 140 may be on the same horizontal plane. In this case, in the first state, the connecting structure 150 may form a step to connect the ditch 140 and the first walking passage 120. At this time, the first user 220 may use the step-shaped connecting structure 150 to walk between the ditch 140 and the first walking passage 120. In the second state, the connecting structure 150 may form a flat plate to connect the ditch 140 and the second walking passage 110. At this time, the second user 210 may use the flat-plate-shaped connecting structure 150 to walk between the ditch 140 and the second walking passage 110.

[0039] In some other embodiments of the present application, the first walking passage 120 and the second walking passage 110 may not be located in the same plane as the trench 140. Then in the first state, the connection structure 150 may form a first-form step to connect the trench 140 and the first walking passage 120, and the first user 220 can use the first-form step to walk between the trench 140 and the first walking passage 120; in the second state, the connection structure 150 may form a second-form step to connect the trench 140 and the second walking passage 110, and the second user 210 can use the second-form step to walk between the trench 140 and the second walking passage 110. Specifically, the difference between the first-form step and the second-form step is that the height of the first-form step away from the trench 140 is lower than the height of the second-form step away from the trench 140.

[0040] The following example illustrates a specific manner in which a portion of the connecting structure 150 moves in a vertical direction to form a flat plate or a step to switch between the first state and the second state.

[0041] like Figure 5As shown, in some embodiments of the present application, the connection structure 150 includes at least two panels 151 and at least two telescopic members 152, and each panel 151 corresponds to a telescopic member 152. Each telescopic member 152 is connected to the corresponding panel 151 to control the lifting and lowering of the corresponding panel 151 in the vertical direction, thereby controlling the height of the corresponding prefabricated panel 151 in the vertical direction. By controlling the height of each panel 151 in the vertical direction, all panels 151 can form a flat plate or a step together. Specifically, when each panel 151 is located on the same plane, the connection structure 150 forms a flat plate; when the heights of all panels 151 are successively increased or decreased, the connection structure 150 forms a step. Specifically, the telescopic member 152 can be a hydraulic rod, by which the height of the plate 151 in the vertical direction can be controlled, and by which the plate 151 can be supported while the plate 151 is maintained at a certain height. Since the hydraulic rods have a strong manufacturing capacity, the connection structure 150 can have a high bearing capacity to support the walking of the first user 220 or the second user 210. In other embodiments of the present application, the connection structure can also be rotatably connected to the trench, as illustrated below. One end of the connection structure 150 is connected to the trench 140, and the other end of the connection structure 150 can rotate around the end connected to the trench 140 to achieve switching between the first state and the second state. The rotation direction of the connection structure 150 is in the vertical plane, that is, the connection structure 150 can rotate in the vertical plane.

[0042] The first walking channel 120 is located below the second walking channel 110. If the first walking channel 120 and the ditch 140 are in the same horizontal plane, in the first state, the connecting structure 150 is rotated so that the other end thereof remains in a state of being connected to the first walking channel 120, that is, the connecting structure 150 forms a flat plate parallel to the horizontal plane. At this time, the first user 220 can use the connecting structure 150 in a flat plate state to walk between the ditch 140 and the first walking channel 120; in the second state, the connecting structure 150 is rotated so that the other end thereof remains in a state of being connected to the second walking channel 110, that is, the connecting structure 150 forms a slope at an acute angle to the horizontal plane. At this time, the second user 210 can use the connecting structure 150 in a sloped state to walk between the ditch 140 and the second walking channel 110.

[0043] If the second walking channel 110 and the horizontal plane are in the same horizontal plane, in the first state, the connecting structure 150 is rotated so that the other end thereof remains in a state of being connected to the first walking channel 120, that is, the connecting structure 150 forms a slope at an acute angle to the horizontal plane, and at this time, the first user 220 can use the connecting structure 150 in a sloped state to walk between the ditch 140 and the first walking channel 120; in the second state, the connecting structure 150 is rotated so that the other end thereof remains in a state of being connected to the second walking channel 110, that is, the connecting structure 150 forms a flat plate parallel to the horizontal plane, and at this time, the second user 210 can use the connecting structure 150 in a flat plate state to walk between the ditch 140 and the second walking channel 110.

[0044] In some other embodiments of the present application, the first walking channel 120 and the second walking channel 110 may not be located in the same plane as the trench 140. Then, in the first state, the connection structure 150 rotates so that the other end thereof remains in a state of being connected to the first walking channel 120, that is, the connection structure 150 forms a first slope at a first acute angle to the horizontal plane, and the first user 220 can use the connection structure 150 in the first slope state to walk between the trench 140 and the first walking channel 120; in the second state, the connection structure 150 rotates so that the other end thereof remains in a state of being connected to the second walking channel 110, that is, the connection structure 150 forms a second slope at a second acute angle to the horizontal plane, and the second user 210 can use the connection structure 150 in the second slope state to walk between the trench 140 and the second walking channel 110. Specifically, the difference between the first slope and the second slope is that the height of the end of the first slope away from the trench 140 is lower than the height of the end of the second slope away from the trench 140.

[0045] Of course, in some other embodiments of the present application, the first walking channel 120 may also be arranged above the second walking channel 110. In this case, it is only necessary to swap the positions of the first walking channel 120 and the second walking channel 110, and the specific situation will not be repeated here.

[0046] In other embodiments of the present application, the first walking channel 120 and the second walking channel 110 may also be located in the same plane, and it is sufficient that the first walking channel 120 and the second walking channel 110 are spaced from each other. The other end of the connecting structure 150 can rotate around the end connected to the trench 140, and the rotation direction of the connecting structure 150 is in the horizontal plane, that is, the connecting structure 150 can rotate in the horizontal plane. In the first state, the connecting structure 150 rotates so that the other end remains connected to the first walking channel 120, and the first user 220 can use the connecting structure 150 to walk between the trench 140 and the first walking channel 120; in the second state, the connecting structure 150 rotates so that the other end remains connected to the second walking channel 110, and the second user 210 can use the interception structure to walk between the trench 140 and the second walking channel 110.

[0047] Here, the connecting structure 150 can also switch between the first state and the second state by moving horizontally in the horizontal plane. Specifically, the trench 140 can be set to be accessible from two positions, and the connecting structure 150 can be moved horizontally in the horizontal plane to achieve connection to the first walking channel 120 and one entrance of the trench 140, or to the second walking channel 110 and another entrance of the trench 140.

[0048] In some embodiments of the present application, the rail transit vehicle maintenance device 100 also includes a track 130. Specifically, the track 130 can be a double track or a single track, and the specific situation needs to be determined according to the specific vehicle. For vehicles that are inspected and repaired on double tracks, the track 130 needs to be set as a double track, and for vehicles that are inspected and repaired on a single track, the track 130 needs to be set as a single track. The track 130 is laid above the ditch 140, and the track 130 is used for parking vehicles. The vehicle travels on the track 130 and enters above the ditch 140, and then parks on the track 130. The first user 220 and the second user 210 can enter the ditch 140 respectively to inspect the vehicle.

[0049] In some embodiments of the present application, the vehicle maintenance method includes the following steps:

[0050] S1, determine the vehicle to be parked in the warehouse. That is, park the vehicle on the track 130 so that the vehicle is located above the ditch 140.

[0051] S2, the connection structure 150 is set to the first state, so that the connection structure 150 connects the first walking passage 120 for the first user 220 to walk and the trench 140 for repairing the vehicle. At this time, the first user 220 can enter the trench 140 to repair the vehicle.

[0052] S3. Determine the location of the first user 220. Specifically, the location of the first user 220 may be determined by using devices such as infrared sensors or by staff.

[0053] When it is determined that the first user 220 is in the trench 140, the connection structure 150 is kept in the first state, in which the connection structure 150 is connected to the trench 140 and the first walking passage 120, and the first user 220 can walk freely between the trench 140 and the first walking passage 120. In addition, in this state, the connection structure 150 and the second walking passage 110 are disconnected, so that the second user 210 cannot enter the trench 140, and the second user 210 cannot be in the trench 140 at the same time as the first user 220, thereby ensuring the safety of the first user 220 and the second user 210.

[0054] When it is determined that the first user 220 is located in the first walking passage 120, the connection structure 150 is switched to the second state, in which the connection structure 150 is connected to the trench 140 and the second walking passage 110, and the second user 210 can freely walk in the trench 140 and the second walking passage 110. In this state, the connection structure 150 and the first walking passage 120 are disconnected, so that the first user 220 cannot enter the trench 140, and the second user 210 cannot be in the trench 140 at the same time as the first user 220, thereby ensuring the safety of the first user 220 and the second user 210.

[0055] In some other embodiments of the present application, the vehicle maintenance method may further include the following steps after step S3:

[0056] S4. Determine the location of the second user 210. Specifically, the location of the second user 210 may be determined by using devices such as infrared sensors or by staff.

[0057] When it is determined that the second user 210 is located in the trench 140, the connection structure 150 is kept in the second state, in which the connection structure 150 is connected to the trench 140 and the second walking passage 110, and the second user 210 can walk freely between the trench 140 and the second walking passage 110. In this state, the connection structure 150 and the first walking passage 120 are disconnected, so that the first user 220 cannot enter the trench 140, and the second user 210 cannot be in the trench 140 at the same time as the first user 220, thereby ensuring the safety of the first user 220 and the second user 210. When it is determined that the second user 210 is located in the second walking passage 110, the connection structure 150 is switched to the first state, in which the connection structure 150 is connected to the trench 140 and the first walking passage 120, and the first user 220 can walk freely between the trench 140 and the first walking passage 120. In this state, the connection structure 150 and the second walking channel 110 are disconnected, so that the second user 210 cannot enter the ditch 140, and the second user 210 cannot be in the ditch 140 at the same time as the first user 220, thereby ensuring the safety of the first user 220 and the second user 210.

[0058] In some other embodiments of the present application, the vehicle maintenance method may further include the following steps:

[0059] When it is determined that the first user 220 is located in the first walking passage 120 and the second user 210 is located in the second walking passage 110, the connection structure 150 is kept in the current state. Specifically, when the first user 220 is in the first walking passage 120 and the second user 210 is in the second walking passage 110, it means that no vehicle is currently detected. At this time, whether the connection structure 150 is in the first state or the second state, it will not cause the first user 220 and the second user 210 to exist in the trench 140 at the same time, so there will be no risk caused by the first user 220 and the second user 210 both being in the trench 140.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rail transit vehicle maintenance device, characterized in that: include: a trench for the first user or the second user to walk on to inspect the vehicle; a first walking passage, which can be communicated with the ditch and is used for the first user to walk; a second walking passage, which can be communicated with the trench and is used for the second user to walk; A connecting structure, used to connect the first walking channel and the ditch in a first state, and to connect the second walking channel and the ditch in a second state; Wherein, the connecting structure can move in a vertical plane to switch between the first state and the second state.

2. The rail transit vehicle maintenance device according to claim 1, characterized in that: The plurality of trenches are provided, and the plurality of trenches are arranged at intervals, and the first walking channel can be connected to each of the trenches.

3. The rail transit vehicle maintenance device according to claim 2, characterized in that: The connection structures are provided in plurality, and each of the connection structures corresponds to one of the trenches.

4. The rail transit vehicle maintenance device according to claim 1, characterized in that: One end of the connecting structure is connected to the trench, and the other end of the connecting structure is used to communicate with the first walking channel or the second walking channel; in the first state, the other end is connected with the first walking channel, and in the second state, the other end is connected with the second walking channel.

5. The rail transit vehicle maintenance device according to claim 4, characterized in that: The first walking channel is located below the second walking channel; part of the connecting structure moves in a vertical direction to form a flat plate or a step to switch between the first state and the second state.

6. The rail transit vehicle maintenance device according to claim 5, characterized in that: The connection structure includes at least two plates and at least two telescopic parts, each of the plates corresponds to one telescopic part, and each telescopic part is used to control the height of the corresponding plate; the at least two plates are used to form the flat plate or step.

7. The rail transit vehicle maintenance device according to claim 4, characterized in that: The first walking channel is located below the second walking channel; the connecting structure rotates in a vertical plane to switch between the first state and the second state.

8. The rail transit vehicle maintenance device according to claim 1, characterized in that: It also includes a track, which is laid above the ditch and is used for parking the vehicle.

9. A rail transit vehicle maintenance method, characterized in that: The steps include: Confirm that the vehicle is parked in the warehouse; The connection structure is set to a first state so that the connection structure is connected to a first walking passage for a first user to walk and a trench for repairing the vehicle; Determine the position of the first user; if the first user is in the trench, keep the connection structure in the first state; if the first user is in the first walking channel, switch the connection structure to the second state, so that the connection structure connects the second walking channel for the second user to walk and the trench for repairing the vehicle.

10. The rail transit vehicle maintenance method according to claim 9, characterized in that: The following steps are also included: Determine the position of the second user; if the second user is in the trench, keep the connection structure in the second state; if the second user is in the second walking passage, switch the connection structure to the first state.

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