Device for replacing door leaf of urban rail transit subway vehicle door

Abstract

The utility model relates to the technical field of equipment maintenance, and particularly discloses a device for replacing a door leaf of an urban rail transit subway vehicle door, which comprises a base, a lifting component and a back shore component, the top support is arranged above the base, and the lifting assembly is arranged in the top support assembly and used for connecting the top and the bottom of the top support assembly; and when the lifting assembly works, the jacking assembly can be propped open. Through accurate control of the lifting assembly, the device can rapidly open the back shore assembly, and a stable working platform is provided for replacement of the door leaf of the vehicle door. Therefore, the time for replacing the door leaf is greatly shortened, the working efficiency is improved, and the downtime of subway operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to a device for replacing door leaves of urban rail transit subway vehicles. Background Art

[0002] In urban rail transit systems, subway car doors are key components for passengers entering and exiting trains, and their stability and reliability are crucial. However, due to long-term use and wear, door leaves occasionally need to be replaced. Traditional door leaf replacement methods often require manual lifting or the use of simple brackets, which is not only inefficient but also poses safety risks. Therefore, it is particularly important to develop a device that can safely and quickly replace subway car door leaves. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the purpose of the utility model is to provide a device for replacing door leaves of urban rail transit subway vehicles.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a device for replacing door leaves of urban rail transit subway vehicles, comprising: a base, a lifting assembly, and a top support assembly; the top support assembly is arranged above the base, the lifting assembly is arranged inside the top support assembly, and the top and bottom of the top support assembly are connected; the lifting assembly can open the top support assembly when working.

[0005] Main Working Principle: The device consists of a base, a lifting assembly, and a top support assembly. The top support assembly is mounted above the base to form a supporting structure. The lifting assembly is built into the top support assembly, connecting the top and bottom of the top support assembly and able to expand or contract the top support assembly through its working mechanism.

[0006] Before the device is activated, the lifting assembly is retracted, keeping the entire unit at a low height for easy transportation and storage. When a subway car door leaf needs to be replaced, the unit is first positioned appropriately. The lifting assembly is then activated. The lifting assembly begins operating, gradually working through its internal mechanical structure. During this process, the top and bottom parts of the lifting assembly move simultaneously in opposite directions, expanding the top support assembly. As the lifting assembly extends, the top support assembly gradually expands, forming a stable support structure. This support structure is tall and stable enough to support the subway car door leaf, allowing workers to remove and replace the leaf in a safe environment. After the leaf is replaced, the lifting assembly is controlled to move in reverse, gradually retracting it, and the top support assembly returns to its original compact state. The entire unit can then be easily removed, freeing up space for subsequent subway car operations or maintenance work.

[0007] The device expands and contracts the lifting assembly to open and close the top support assembly, providing a stable and secure support platform for replacing subway door leaves. This design not only improves the efficiency of door leaf replacement but also significantly reduces safety risks for workers.

[0008] Preferably, the base includes a first tightening end, a mounting portion and a second tightening end;

[0009] The first tightening end and the second tightening end are respectively arranged on both sides of the mounting portion, the supporting assembly is installed on the surface of the mounting portion, and the first tightening end and the second tightening end protrude upward toward the supporting assembly.

[0010] Preferably, the distance between the first tightening end and the mounting portion is greater than the distance between the second tightening end and the mounting portion.

[0011] Preferably, the length of the mounting portion corresponds to the length of the supporting assembly.

[0012] Preferably, the base further includes a first anti-slip pad, a first pin key, a second anti-slip pad, and a second pin key;

[0013] The first tightening end is provided with a first fixing hole, the first anti-slip pad is provided on a side of the first tightening end facing away from the supporting assembly, and the first anti-slip pad and the first fixing hole are connected by the first pin key;

[0014] The second tightening end is provided with a second fixing hole, the second anti-slip pad is provided on a side of the second tightening end facing away from the supporting assembly, and the second anti-slip pad and the second fixing hole are connected by the second pin key.

[0015] Preferably, the top support assembly includes a bottom plate and a top plate, the bottom plate and the top plate are arranged opposite to each other, a rotating hole is provided on the side of the bottom plate facing the top plate, and a threaded hole is provided on the top plate. The lifting assembly is connected to the top plate through the threaded hole, and the lifting assembly is inserted into the rotating hole. The lifting assembly is rotated to drive the top plate to move through the thread.

[0016] Preferably, the top support assembly further comprises folding side panels, wherein the folding side panels are provided in two groups, and the two groups of folding side panels are respectively provided on both sides of the bottom plate and the top plate, and are connected to the bottom plate and the top plate rotation shafts;

[0017] The folding side panel includes a first side panel and a second side panel, one side of the first side panel is connected to a rotating shaft on one side of the top panel, the other side of the first side panel is connected to a rotating shaft on one side of the second side panel, and the other side of the second side panel is connected to the rotating shaft on the bottom panel.

[0018] Preferably, the lifting component is a threaded rod, the threaded rod is connected to the threaded hole shaft, one end of the threaded rod cooperates with the rotating hole, and the other end of the threaded rod extends outward.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Through the precise control of the lifting assembly, the present invention can quickly prop up the top support assembly, providing a stable working platform for the replacement of door leaves. This greatly shortens the time required to replace door leaves, improves work efficiency, and reduces downtime of subway operations. Traditional methods of replacing door leaves often require manual lifting or the use of simple brackets, which poses a safety hazard. However, this device forms a stable support structure through the coordinated use of the top support assembly and the lifting assembly, effectively avoiding dangerous situations such as collapse or slipping that may occur during the replacement process, thereby greatly enhancing the safety of the operation. The height of the lifting assembly can be adjusted to accommodate the replacement needs of door leaves of different models and heights. In addition, the design of the base also increases the contact area with the subway vehicle body, improving the stability of the device, so that it can maintain a good working condition under various working conditions.

[0021] The device's lifting and supporting components are designed to be simple and straightforward, making them easy to operate and maintain. This eliminates the need for extensive training, reducing operational complexity and costs. Furthermore, the device's components are easily disassembled and replaced, facilitating routine maintenance and upkeep.

[0022] In summary, the device for replacing door leaves of urban rail transit subway vehicles described in the present invention has many beneficial effects. It not only improves operating efficiency and safety, but also enhances the adaptability and operability of the device, which is of great significance for improving the quality of subway operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is an overall schematic diagram of the device for replacing door leaves of urban rail transit subway vehicles;

[0025] Figure 2 This is a side view of the device for replacing door leaves of urban rail transit subway vehicles;

[0026] 1. Base; 10. First tightening end; 11. Mounting portion; 12. Second tightening end; 2. Lifting assembly; 3. Support assembly; 30. Bottom plate; 31. Top plate; 32. Folding side plate 320. First side plate; 321. Second side plate. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Example 1

[0030] This embodiment discloses a device for replacing door leaves of urban rail transit subway vehicles, such as Figure 1-Figure 2 As shown, the device includes a base 1, a lifting assembly 2, and a support assembly 3. The support assembly 3 is mounted above the base 1, while the lifting assembly 2 is built into the support assembly 3, connecting the top and bottom of the support assembly 3. When the lifting assembly 2 is in operation, it can expand the support assembly 3 to form a stable support structure.

[0031] By operating the lifting assembly 2, its internal mechanical structure (such as the threaded mechanism) moves, pushing the top and bottom of the supporting assembly 3 in opposite directions, achieving the opening effect. This design enables the device to quickly and stably open the door leaf, facilitating replacement work and improving work efficiency.

[0032] In some optional embodiments, the base 1 includes a first tightening end 10, a mounting portion 11, and a second tightening end 12. The first tightening end 10 and the second tightening end 12 are respectively disposed on either side of the mounting portion 11, and the supporting assembly 3 is mounted on the surface of the mounting portion 11. The first tightening end 10 and the second tightening end 12 both protrude upward and are in close contact with the subway vehicle body.

[0033] like Figure 1As shown, the protruding design of the first and second tightening ends 10, 12 allows the mounting portion 11 to clamp the gap between the platform and the carriage. Simultaneously, the first tightening end 10 is pressed against the platform, while the second tightening end 12 is pressed against the edge of the carriage. The clamping of the first and second tightening ends 10, 12 between the platform and the carriage improves the stability of the device. This design makes the device more stable when replacing door leaves, avoiding safety hazards caused by shaking or sliding.

[0034] In some optional embodiments, the distance between the first tightening end 10 and the mounting portion 11 is greater than the distance between the second tightening end 12 and the mounting portion 11 .

[0035] The purpose of this setting is that the height of the platform is usually higher than the height of the carriage floor. By adjusting the distance between the first tightening end 10 and the second tightening end 12 and the mounting part 11, the working part can be placed on the horizontal plane as much as possible, making the working process more stable.

[0036] In some optional embodiments, the length of mounting portion 11 corresponds to the length of support assembly 3. The length of mounting portion 11 is designed to allow support assembly 3 to be fully mounted on base 1 while maintaining a stable support state. This design ensures the stability and reliability of support assembly 3 and improves the overall performance of the device.

[0037] In some optional embodiments, the base 1 further includes a first anti-slip pad, a first pin key, a second anti-slip pad, and a second pin key. The first tightening end 10 and the second tightening end 12 are respectively provided with a first fixing hole and a second fixing hole, and the first anti-slip pad and the second anti-slip pad are respectively connected to the first fixing hole and the second fixing hole through the first pin key and the second pin key. By providing the first anti-slip pad and the second anti-slip pad, the friction between the base 1 and the platform and the car is increased to prevent the device from sliding when replacing the door leaf. At the same time, the first pin key and the second pin key firmly connect the first anti-slip pad and the second anti-slip pad to the fixing hole to ensure the stability of the anti-slip pad. This design improves the stability and safety of the device when replacing the door leaf, and avoids safety hazards caused by sliding.

[0038] In some optional embodiments, the support assembly 3 includes a bottom plate 30 and a top plate 31. The bottom plate 30 has a rotating hole on the side facing the top plate 31, and the top plate 31 has a threaded hole. The lifting assembly 2 is a threaded rod connected to the top plate 31 through the threaded hole and inserted into the rotating hole. Rotating the threaded rod drives the top plate 31 through the threads.

[0039] By rotating the threaded rod, it moves relative to the threaded hole in the top plate 31, pushing the top plate 31 up or down. Because the other end of the threaded rod fits into the rotating hole, the top plate 31 remains stable during movement. This design enables the lifting assembly 2 to precisely control the height of the support assembly 3, providing a stable support platform for replacing door leaves.

[0040] In some optional embodiments, the top support assembly 3 further includes two sets of folding side panels, which are respectively arranged on both sides of the bottom plate 30 and the top plate 31. The folding side panels include a first side panel and a second side panel, which are connected to the bottom plate 30 and the top plate 31 via a rotating shaft.

[0041] When the lifting assembly 2 extends the support assembly 3, the folding side panels unfold, forming a stable frame structure. When the lifting assembly 2 retracts, the folding side panels fold up, facilitating transport and storage of the device. This design enhances the stability and load-bearing capacity of the support assembly 3, while also improving the device's portability and flexibility.

[0042] In some optional embodiments, the lifting assembly 2 is a threaded rod, one end of which engages with a rotary hole and the other end extends outward. The extended portion of the threaded rod is rotated manually or with a power tool, causing it to move relative to the threaded hole in the top plate 31, thereby moving the top plate 31. The mating design of the threaded rod and the rotary hole ensures the stability and reliability of the lifting assembly 2 during expansion and contraction. This design simplifies the structure of the lifting assembly 2, reduces manufacturing costs, and improves its reliability and durability.

[0043] The complete and specific working principle is: Place the device under the subway vehicle door, adjust the contact position of the base 1 with the platform and the car to ensure stable support. Turn the threaded rod of the lifting assembly 2 manually or with an electric tool to push the top plate 31 of the top support assembly 3 upward. As the top plate 31 rises, the folding side panels gradually unfold into a stable frame structure, providing support for the replacement of the door leaves. With the support of the top support assembly 3, the door leaves are removed and replaced. After the replacement is completed, the top support assembly 3 is retracted and folded by rotating the threaded rod of the lifting assembly 2 in the opposite direction. Remove the device from under the subway vehicle door to make room for subsequent subway operations or maintenance work.

[0044] To sum up, the device for replacing door leaves of urban rail transit subway vehicles provided in this specific embodiment has the advantages of simple structure, easy operation, stability and reliability. It can significantly improve the replacement efficiency and quality of door leaves and reduce the labor intensity and safety risks of operators.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for replacing door leaves of urban rail transit subway vehicles, characterized in that: include: Base, lifting assembly, top support assembly; The supporting assembly is arranged above the base, and the lifting assembly is arranged inside the supporting assembly to connect the top and bottom of the supporting assembly; the lifting assembly can open the supporting assembly when working.

2. The device for replacing door leaves of urban rail transit subway vehicles according to claim 1, characterized in that: The base includes a first tightening end, a mounting portion and a second tightening end; The first tightening end and the second tightening end are respectively arranged on both sides of the mounting portion, the supporting assembly is installed on the surface of the mounting portion, and the first tightening end and the second tightening end protrude upward toward the supporting assembly.

3. The device for replacing door leaves of urban rail transit subway vehicles according to claim 2, characterized in that: The distance between the first tightening end and the mounting portion is greater than the distance between the second tightening end and the mounting portion.

4. The device for replacing door leaves of urban rail transit subway vehicles according to claim 2, characterized in that: The length of the mounting portion corresponds to the length of the supporting assembly.

5. The device for replacing door leaves of urban rail transit subway vehicles according to claim 2, characterized in that: The base further includes a first anti-slip pad, a first pin key, a second anti-slip pad, and a second pin key; The first tightening end is provided with a first fixing hole, the first anti-slip pad is provided on a side of the first tightening end facing away from the supporting assembly, and the first anti-slip pad and the first fixing hole are connected by the first pin key; The second tightening end is provided with a second fixing hole, the second anti-slip pad is provided on a side of the second tightening end facing away from the supporting assembly, and the second anti-slip pad and the second fixing hole are connected by the second pin key.

6. The device for replacing door leaves of urban rail transit subway vehicles according to claim 1, characterized in that: The top support assembly includes a bottom plate and a top plate, the bottom plate and the top plate are arranged opposite to each other, a rotating hole is provided on the side of the bottom plate facing the top plate, and a threaded hole is provided on the top plate. The lifting assembly is connected to the top plate through the threaded hole, and the lifting assembly is inserted into the rotating hole. The lifting assembly is rotated to drive the top plate to move through the thread.

7. The device for replacing door leaves of urban rail transit subway vehicles according to claim 6, characterized in that: The top support assembly further includes two groups of folding side panels, the two groups of folding side panels are respectively arranged on both sides of the bottom plate and the top plate, and are connected to the bottom plate and the top plate rotation shaft; The folding side panel includes a first side panel and a second side panel, one side of the first side panel is connected to a rotating shaft on one side of the top panel, the other side of the first side panel is connected to a rotating shaft on one side of the second side panel, and the other side of the second side panel is connected to the rotating shaft on the bottom panel.

8. The device for replacing door leaves of urban rail transit subway vehicles according to claim 6, characterized in that: The lifting component is a threaded rod, which is connected to the threaded hole rotating shaft. One end of the threaded rod cooperates with the rotating hole, and the other end of the threaded rod extends outward.

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