A mobile boarding stair

Abstract

The utility model relates to the technical field of urban rail transit, concretely relates to a movable boarding stair, including structure main body, positioning base and limiting piece, the structure main body bottom is equipped with the positioning plate, the positioning base can be fixed in the civil engineering foundation, the positioning base is equipped with the guide slot, the positioning plate and guide slot slide fit, limiting piece position connection positioning base and positioning plate, through the positioning plate of fixed in the civil engineering foundation on the structure main body hold fixing, make limiting piece be in the slack state, the positioning plate can move along the guide slot, realize the relative position adjustment of structure main body and positioning base, make the boarding stair can preliminary fixed before the vehicle enters the section, after the vehicle arrives the section, carry out the position accurate adjustment fast, can improve the relative position accuracy of boarding stair and vehicle, realize the accurate positioning installation of boarding stair, improve the safety of driving and personnel traffic, avoid appearing the safety accident of vehicle wiping and hanging boarding stair.

Description

Technical Field

[0001] This utility model relates to the field of urban rail transit technology, specifically to a movable boarding ladder. Background Technology

[0002] The driver's boarding stairs in rail transit are crucial non-standard technological equipment for drivers to board and alight trains. Precise positioning of the boarding stairs on the platform is a critical factor in ensuring train operation safety. If the boarding stairs are too close to the track centerline, they will encroach on the vehicle's boundaries, causing damage to the main structure. If the boarding stairs are too far from the track centerline, they will create excessive gaps between the boarding stairs and the driver's cab, posing a risk of passengers slipping and falling, thus creating a safety hazard. Currently, boarding stairs in depots are installed before the train arrives at the depot, positioned using the track centerline. However, due to construction errors during the actual installation of the tracks and boarding stairs, the distance between the boarding stairs and the train may be too large or too small after the train is parked and stable, requiring rework and disrupting the normal operation of the depot. If mobile boarding stairs with wheels are used, it is difficult to stably install them on the platform, posing a risk of displacement and collision. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing loading ladders in the prior art, which are not easy to accurately position and install, and to provide a movable loading ladder.

[0004] This utility model provides a movable boarding ladder, comprising: The main structural body has a positioning plate at its bottom. A positioning base is provided, which can be fixed to the civil engineering foundation. The positioning base is provided with a guide groove, and the positioning plate slides in the guide groove. A limiting component, which limits the connection between the positioning base and the positioning plate.

[0005] Preferably, the positioning base includes a base plate, on which two inverted L-shaped limiting plates are disposed opposite to each other, and the guide groove is formed between the two limiting plates.

[0006] Preferably, the base plate is provided with a plurality of fixing holes, which are distributed opposite to each other on both sides of the guide slot, and the fixing holes are equipped with anchors.

[0007] Preferably, the base plate is provided with a first connecting hole, the limiting plate is provided with a second connecting hole, and the positioning plate is provided with a positioning hole. The first connecting hole and the second connecting hole are in communication, the limiting member passes through the second connecting hole and the positioning hole, and the limiting member is threadedly connected to the first connecting hole.

[0008] Preferably, the positioning hole includes a strip-shaped hole, the long axis of the positioning hole is parallel to the longitudinal direction of the guide groove, and the length of the guide groove is greater than the length of the positioning plate.

[0009] Preferably, the width of the positioning hole is greater than the outer diameter of the limiting member.

[0010] Preferably, the second connecting hole includes a strip-shaped hole.

[0011] Preferably, the length of the base plate is greater than the length of the limiting plate, a slope is provided between the edge of the base plate and the edge of the limiting plate, the bottom surface of the positioning plate is provided with a guide surface, the slope includes an inclined plane or an arc surface, and the guide surface includes an inclined plane or an arc surface.

[0012] Preferably, the main structure includes a ladder section, a platform section, and a support section. The ladder section includes two parallel diagonal braces, with several steps detachably connected between the two diagonal braces. The platform section includes a platform frame, with a platform plate on the top surface of the platform frame. The platform frame is connected to the diagonal braces, and guardrail components are provided on the diagonal braces and the platform frame. The support section includes two columns, which are connected to the bottom surface of the platform frame. The diagonal braces, the platform frame, and the columns are all channel steel components, and positioning plates are respectively provided at the bottom of the columns and the diagonal braces.

[0013] Preferably, a pad is embedded in the side of the platform frame near the track, the pad extending beyond the edge of the platform frame, and the pad comprising a flexible material structural component.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a movable loading ladder. A positioning base fixed to the civil engineering foundation holds and fixes a positioning plate on the main structure. When the limiting component is in a relaxed state, the positioning plate can move along the guide groove, achieving relative position adjustment between the main structure and the positioning base. This allows the loading ladder to be initially fixed before the vehicle enters the depot, and to be quickly and accurately adjusted after the vehicle arrives. This improves the relative position accuracy between the loading ladder and the vehicle, enabling precise positioning and installation of the loading ladder, enhancing the safety of vehicle and personnel passage, and preventing accidents caused by vehicles rubbing against the loading ladder. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a movable boarding ladder according to Embodiment 1.

[0016] Figure 2 This is a schematic diagram of the structure of the positioning base and positioning plate combination described in Example 1. Figure 1 .

[0017] Figure 3 This is a side view of the positioning base and positioning plate assembly described in Example 1.

[0018] Figure 4 This is a schematic diagram of the structure of the positioning base and positioning plate combination described in Example 1. Figure 2 .

[0019] Figure 5 This is a schematic diagram of the positioning base described in Example 1.

[0020] Figure 6 This is a schematic diagram of the positioning plate described in Example 1.

[0021] Marked in the image: 1-Main structure, 11-Positioning plate, 111-Positioning hole, 12-Guide surface, 13-Diagonal bar, 14-Platform frame, 15-Guardrail component, 16-Post, 2-Positioning base, 21-Guide slot, 22-Base plate, 23-Limiting plate, 24-Fixing hole, 25-First connecting hole, 26-Second connecting hole, 27-Slope, 3-Limiting component, 4-Anchor, 5-Padded block. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0023] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0025] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0026] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0027] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0028] Example 1 like Figures 1-6 As shown, a movable boarding ladder includes a main structure 1, a positioning base 2, and a limiting component 3.

[0029] Structural main body 1 is the main component of the boarding stairs, such as... Figure 1As shown, the main structure 1 may include a ladder section, a platform section, and a support section. The ladder section includes two parallel diagonal bars 13, with several steps detachably connected between the two diagonal bars 13. The platform section includes a platform frame 14, with a platform plate fixedly installed on the top surface of the platform frame 14. One side of the platform frame 14 is connected to the diagonal bars 13, and guardrail components 15 are provided on both the diagonal bars 13 and the platform frame 14. The support section includes two columns 16, which are connected to the bottom surface of the platform frame 14. Positioning plates 11 are respectively provided at the bottom of the columns 16 and the diagonal bars 13.

[0030] In an optional embodiment, the positioning plate 11 may be a rectangular plate-shaped structural member disposed at the bottom of the column 16 and the diagonal bar 13.

[0031] In an optional embodiment, the diagonal brace 13, the platform frame 14, and the column 16 can be channel steel components, and the positioning plate 11 is welded to them. This provides sufficient strength to ensure the structural stability of the loading ladder and extend its service life. At the same time, it forms a steel structure loading ladder, which is convenient for later maintenance.

[0032] The positioning base 2 is a structural component used to fix the civil engineering foundation. The positioning base 2 is provided with a guide groove 21. The positioning plate 11 slides in the guide groove 21. The limiting component 3 limits the connection between the positioning base 2 and the positioning plate 11, so that the positioning plate 11 can be fixed on the civil engineering foundation through the positioning base 2.

[0033] In optional implementations, such as Figures 2-3 As shown, the positioning base 2 includes a base plate 22, which can be a rectangular plate-shaped structural component. The base plate 22 is set to fit against the top surface of the civil foundation. The base plate 22 can be provided with multiple fixing holes 24. Anchors 4 can be installed in the fixing holes 24 to fix the base plate 22 to the civil foundation. The fixing holes 24 can be circular through holes, and the anchors 4 can be pre-embedded bolts that are compatible with the fixing holes 24.

[0034] In an optional embodiment, two inverted L-shaped limiting plates 23 are arranged opposite each other on the top surface of the base plate 22. A guide groove 21 for holding and fixing the positioning plate 11 is formed between the two limiting plates 23. The positioning plate 11 can move longitudinally along the guide groove 21 to realize the change of the relative position between the main body 1 and the base plate 22, and realize the precise positioning of the relative position between the main body 1 and the vehicle.

[0035] In optional implementations, such as Figures 4-5 As shown, the base plate 22 is provided with a first connecting hole 25, the limiting plate 23 is provided with a second connecting hole 26, and the positioning plate 11 is provided with a positioning hole 111. The first connecting hole 25 and the second connecting hole 26 are connected, the limiting member 3 passes through the second connecting hole 26 and the positioning hole 111, and the limiting member 3 is threadedly connected to the first connecting hole 25.

[0036] Specifically, the first connecting hole 25 can be a threaded hole, the second connecting hole 26 can be a circular through hole, a strip hole, or a threaded hole, and the limiting member 3 can be a bolt. In use, the limiting member 3 passes through the second connecting hole 26 and then passes through the positioning hole 111 in the axial direction, and then is threadedly connected to the first connecting hole 25, so that the limiting plate 23 is pressed close to the bottom plate 22, reducing the distance between the limiting plate 23 and the bottom plate 22, thereby realizing the limiting and fixing of the positioning plate 11 that is inserted into the guide slot 21.

[0037] In optional implementations, such as Figure 6 As shown, the positioning hole 111 can be a strip-shaped hole. The long axis of the positioning hole 111 is parallel to the longitudinal direction of the guide groove 21. The width of the positioning hole 111 is greater than the outer diameter of the limiting member 3. When the limiting member 3 is in a relaxed state, the positioning plate 11 can move relative to the base plate 22 along the long axis and short axis of the positioning hole 111, thereby changing the relative position of the main body 1 and the vehicle, and realizing the precise positioning and installation of the boarding ladder.

[0038] In an optional embodiment, the length of the guide groove 21 can be set to be greater than the length of the positioning plate 11, so that after the positioning plate 11 moves along the long axis of the positioning hole 111 in the guide groove 21, it can still be fully pressed into the guide groove 21, without partially moving out of the guide groove 21 and affecting the fixing effect.

[0039] In one or more implementations, such as Figures 4-6 As shown, the length of the base plate 22 can be set to be greater than the length of the limiting plate 23, so that there is a certain distance between the edge of the limiting plate 23 and the edge of the base plate 22. A slope 27 can be provided between the edge of the base plate 22 and the edge of the limiting plate 23. A guide surface 12 is provided on the bottom surface of the positioning plate 11. Through the cooperation of the guide surface 12 and the slope 27, the positioning plate 11 can smoothly enter the guide slot 21, avoiding the positioning plate 11 from colliding with the base plate 22, which would cause the boarding ladder to tip over or the structure to be damaged.

[0040] In an optional embodiment, the slope 27 can be an inclined plane or an arc-shaped surface, and the guide surface 12 can be an inclined plane or an arc-shaped surface.

[0041] In one or more implementations, such as Figure 1 As shown, a pad 5 is embedded in the side of the platform frame 14 near the track. The pad 5 extends out of the edge of the platform frame 14 and includes a flexible material structure.

[0042] In an optional embodiment, the pad 5 can be a rubber block. The pad 5 can be embedded in the platform frame 14 of the channel steel component and partially protrude from the platform frame 14, so that the boarding ladder will not collide with the vehicle when the position is adjusted, thus playing a protective role. The pad 5 can also fill the gap between the platform and the vehicle, making the use of the boarding ladder safer.

[0043] In this embodiment, a movable loading ladder is used by pre-embedding anchors 4 during the construction of the civil engineering foundation, limiting and installing positioning bases 2, and then pushing the loading ladder to move it to the vicinity of the positioning bases 2. This embodiment of a movable loading ladder uses a positioning base 2 fixed to the civil engineering foundation to hold and fix a positioning plate 11 on the main structure 1. When the limiting member 3 is in a relaxed state, the positioning plate 11 can move along the guide groove 21, realizing the relative position adjustment between the main structure 1 and the positioning base 2. This allows the loading ladder to be initially fixed before the vehicle enters the depot, and to be quickly and accurately adjusted after the vehicle arrives at the depot. This improves the relative position accuracy between the loading ladder and the vehicle, achieves precise positioning and installation of the loading ladder, improves the safety of vehicle and personnel passage, avoids on-site rework caused by construction errors, and improves construction efficiency.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A movable boarding ladder, characterized in that, include: The main body of the structure (1) is provided with a positioning plate (11) at the bottom; The positioning base (2) can be fixed to the civil engineering foundation. The positioning base (2) is provided with a guide groove (21). The positioning plate (11) slides in cooperation with the guide groove (21). The limiting member (3) limits the connection between the positioning base (2) and the positioning plate (11).

2. A movable boarding ladder according to claim 1, characterized in that, The positioning base (2) includes a base plate (22), on which two inverted L-shaped limiting plates (23) are arranged opposite to each other, and the guide groove (21) is formed between the two limiting plates (23).

3. A movable boarding ladder according to claim 2, characterized in that, The base plate (22) is provided with a plurality of fixing holes (24), which are distributed opposite to each other on both sides of the guide slot (21), and the fixing holes (24) are equipped with anchors (4).

4. A movable boarding ladder according to claim 3, characterized in that, The base plate (22) is provided with a first connecting hole (25), the limiting plate (23) is provided with a second connecting hole (26), the positioning plate (11) is provided with a positioning hole (111), the first connecting hole (25) and the second connecting hole (26) are connected, the limiting member (3) passes through the second connecting hole (26) and the positioning hole (111), and the limiting member (3) is threadedly connected to the first connecting hole (25).

5. A movable boarding ladder according to claim 4, characterized in that, The positioning hole (111) includes a strip-shaped hole, the long axis of the positioning hole (111) is parallel to the longitudinal direction of the guide groove (21), and the length of the guide groove (21) is greater than the length of the positioning plate (11).

6. A movable boarding ladder according to claim 5, characterized in that, The width of the positioning hole (111) is greater than the outer diameter of the limiting member (3).

7. A movable boarding ladder according to claim 4, characterized in that, The second connecting hole (26) includes a strip-shaped hole.

8. A movable boarding ladder according to claim 4, characterized in that, The length of the base plate (22) is greater than the length of the limiting plate (23). A slope (27) is provided between the edge of the base plate (22) and the edge of the limiting plate (23). A guide surface (12) is provided on the bottom surface of the positioning plate (11). The slope (27) includes an inclined plane or an arc surface. The guide surface (12) includes an inclined plane or an arc surface.

9. A movable boarding ladder according to any one of claims 1-8, characterized in that, The main structure (1) includes a ladder section, a platform section, and a support section. The ladder section includes two parallel diagonal bars (13), and several step plates are detachably connected between the two diagonal bars (13). The platform section includes a platform frame (14), and a platform plate is provided on the top surface of the platform frame (14). The platform frame (14) is connected to the diagonal bars (13), and guardrail components (15) are provided on the diagonal bars (13) and the platform frame (14). The support section includes two columns (16), and the columns (16) are connected to the bottom surface of the platform frame (14). The diagonal bars (13), the platform frame (14), and the columns (16) are all channel steel components. The positioning plates (11) are respectively provided at the bottom of the columns (16) and the diagonal bars (13).

10. A movable boarding ladder according to claim 9, characterized in that, A pad (5) is embedded in the side of the platform frame (14) near the track. The pad (5) extends out of the edge of the platform frame (14) and includes a flexible material structure.

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