Movable cover plate for railway inspection ladder way

Abstract

The utility model aims to provide the movable cover plate for the railway inspection ladder way, which is compact in structure, high in safety and convenient for daily use. The hook comprises a bottom plate, a cover plate, a limiting piece, a hook piece and a lock catch assembly, the limiting piece is arranged on the bottom plate, a rotating shaft and a lock groove are arranged at the two ends of the cover plate respectively, the rotating shaft is rotationally connected with the limiting piece, a clamping groove is formed in the first end of the bottom plate, and the lock catch assembly is arranged in the clamping groove. The lock catch assembly penetrates through the clamping groove to be matched with the lock groove in a limiting mode, and the hook piece is rotationally connected to an external handrail and is matched with the cover plate in a limiting mode. The ladder way movable cover plate inspection device is applied to the technical field of ladder way movable cover plate inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of movable cover plates for inspection ladder openings, in particular to a movable cover plate for railway inspection ladder openings. Background Art

[0002] In the current design of domestic railway passenger and freight lines and electrified railway dedicated lines, prestressed simply supported T-beam design is mainly used. Due to the special structural characteristics of the T-beam, an external inspection ladder is used as the inspection channel from the bridge deck to the pier top without occupying the pedestrian walkway on the bridge deck. The inspection ladder cover generally uses a patterned steel plate. The existing patterned steel plate has some defects when used. For example, the patterned steel plate is heavy, and bolts are used when connecting the cover plate and the support, which are easily damaged; the cover plate is difficult to open and the entire cover plate needs to be removed. There is no placement space and fixing measures after removal, and there are safety hazards such as falling. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a movable cover plate for a railway inspection ladder opening with a compact structure, high safety and convenient daily use.

[0004] The technical solution adopted by the utility model is: the utility model includes a base plate, a cover plate, a limiter, a hook member and a lock assembly, the limiter is arranged on the base plate, the two ends of the cover plate are respectively provided with a rotating shaft and a lock groove, the rotating shaft is rotatably connected with the limiter, the first end of the base plate is provided with a card slot, the lock assembly passes through the card slot and is limitedly matched with the lock groove, the hook member is rotatably connected to the external railing and limitedly matched with the cover plate.

[0005] Furthermore, the lock assembly is provided with a lock seat, a limit lock and a limit plate. The lock seat is fixedly connected to the base plate. A guide hole is provided in the middle of the lock seat. The limit lock passes through the guide hole and cooperates with the card slot for limit positioning. The limit plate is fixedly connected to the lock seat and cooperates with the limit lock.

[0006] Furthermore, the hook member includes a rotating portion and a hook portion, the hook portion is arranged at one end of the rotating portion, the rotating portion is rotatably connected to the external railing, and the hook portion is limitedly matched with the cover plate.

[0007] Furthermore, a slot is provided on a side of the rotating portion close to the hook portion.

[0008] Furthermore, the cover plate is welded into one piece by the rotating shaft, the first stress-bearing flat steel, the second stress-bearing flat steel and the round steel.

[0009] Furthermore, the limiting member is provided with a fixed plate, a rotating block and a limiting screw, the rotating block is arranged on the fixed plate, the fixed plate is provided with a fixing hole, the limiting screw limits and presses the fixed plate through the fixing hole, and the rotating shaft is rotatably connected to the rotating block.

[0010] Furthermore, the rotating shaft and the cover plate are welded into one body.

[0011] Furthermore, the surfaces of the bottom plate, the cover plate, the limiting member, the hook member and the locking assembly are all provided with an anti-rust coating.

[0012] The beneficial effects of the utility model are: since the cover plate of the utility model adopts a steel grille cover plate, it has high strength, rigidity, good wind resistance and durability; the outer layers of the bottom plate, cover plate, limit parts, hook parts and lock components are provided with an anti-rust layer, and have a long service life; the cover plate is connected by a rotating shaft, and one person can perform lifting, fixing and other operations without the need for additional equipment; the structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of the utility model when the cover is in a closed state;

[0014] Figure 2 It is a structural schematic diagram of the cover plate of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the bottom plate and the connecting piece of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connecting piece of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the lock assembly of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the hook member of the utility model;

[0019] Figure 7 This is a structural schematic diagram of the utility model in an open cover state;

[0020] Figure 8 It is a structural schematic diagram of the second embodiment of the present utility model. DETAILED DESCRIPTION

[0021] like Figures 1 to 8As shown, in this embodiment, the utility model includes a base plate 1, a cover plate 2, a limiting member 3, a hook member 4 and a lock assembly 5, the limiting member 3 is arranged on the base plate 1, and the two ends of the cover plate 2 are respectively provided with a rotating shaft 21 and a locking groove 22, the rotating shaft 21 is rotatably connected with the limiting member 3, the first end of the base plate 1 is provided with a card slot 11, the lock assembly 5 passes through the card slot 11 and is limitedly matched with the lock groove 22, the hook member 4 is rotatably connected to the external railing and is limitedly matched with the cover plate 2, the limiting member 3, the hook member 4 and the lock assembly 5 can be provided in one or more groups, the rotating part 41 rotates around the railing, the limiting member 3 is fixed to the base plate 1 by screws, the rotating shaft 21 of the cover plate 2 is inserted into the rotating groove of the limiting member 3, the cover plate 2 performs a flipping motion around the rotating shaft 21, and when the cover plate 2 is in a closed state, the staff can insert the lock assembly 5 into The lock groove 22 locks the cover plate 2 in the base plate 1 to prevent the cover plate 2 from moving when the train passes. When it is necessary to open the cover plate 2 to enter the inspection ladder, the staff will rotate and pull the lock component 5 to make the lock component 5 withdraw from the lock groove 22 of the cover plate 2. At this time, the cover plate 2 is unlocked, and the staff opens the cover plate 2, and moves the hook portion 42 of the hook member 4 through the water flow groove 21 of the cover plate 2 to limit the cover plate 2. The inspection ladder is in an open state, which is convenient for the staff to complete the inspection work. The overall structure is simple and compact. The cover plate 2 is welded and fixed with steel plates and round steels. It has high strength and rigidity, good wind resistance and good durability. The outer layers of the base plate 1, the cover plate 2, the limiting member 3, the hook member 4 and the lock component 5 are provided with an anti-rust layer, which has a long service life. The cover plate 2 is rotatably connected by a rotating shaft 21, and a single person can perform operations such as lifting and fixing without the need for additional equipment. The structure is simple and easy to use.

[0022] In this embodiment, the lock assembly 5 is provided with a lock seat 51, a limit lock 52 and a limit plate 53 in sequence. The lock seat 51 is fixedly connected to the bottom plate 1. A guide hole is provided in the middle of the lock seat. The limit lock 52 passes through the guide hole and is limitedly matched with the card slot 11. The limit plate 53 is fixedly connected to the lock seat 51 and is limitedly matched with the limit lock 52. The limit lock 52 is provided with a first lock part, a second lock part and a third lock part in sequence. A locking portion passes through the card slot and cooperates with the locking slot to limit the position, the second locking portion and the side wall of the bottom plate are pushed and limited, the widths of the first locking portion, the second locking portion and the third locking portion are slightly smaller than the height of the locking slot and the card slot. When inserting and locking, the staff holds the third locking portion and rotates it 90 degrees to change the first locking portion from a longitudinal state to a transverse state. After the first locking portion in the transverse state passes through the lock slot 22, it is rotated 90 degrees again. The first locking portion and the lock slot 22 are limited to limit the movement of the cover 2.

[0023] In this embodiment, the hook member 4 includes a rotating part 41 and a hook part 42. The hook part 42 is arranged at one end of the rotating part 41. The rotating part 41 is rotatably connected to the external railing. The hook part 42 is limitedly matched with the cover plate 2. The rotating part 41 is rotatably connected to the railing. The rotation of the rotating part 41 drives the hook part 42 to rotate up and down.

[0024] In this embodiment, a groove is disposed on a side of the rotating portion 41 close to the hook portion 42 .

[0025] In this embodiment, the cover plate 2 is welded into one by the rotating shaft 21, the first stressed flat steel 23, the second stressed flat steel 25 and the round steel 25. The diameter of the round steel 25 is 5 mm. The first stressed flat steel 23 forms the outer periphery of the cover plate. The second stressed flat steel 25 is provided with one or more groups. The second stressed flat steel 25 is transversely arranged in the first stressed flat steel 23. The round steel 24 is provided with one or more groups. The second stressed flat steel 25 is provided with a reserved hole. The round steel 24 passes through the reserved hole to connect with the second stressed flat steel and is fixed by welding. One end of the first stressed flat steel 23 is connected to the rotating shaft 21.

[0026] In this embodiment, the limiting member 3 is provided with a fixed plate 31, a rotating block 32 and a limiting screw 33. The rotating block 32 is arranged on the fixed plate 31. The fixed plate 31 is provided with a fixing hole. The limiting screw 33 limits and presses the fixed plate 31 through the fixing hole. The rotating shaft 21 is rotatably connected to the rotating block 32.

[0027] In this embodiment, the rotating shaft 21 and the cover plate 2 are welded into one body.

[0028] In this embodiment, the surfaces of the bottom plate 1 , the cover plate 2 , the limiting member 3 , the hook member 4 and the locking assembly 5 are all provided with an anti-rust coating.

[0029] Embodiment 2

[0030] In this embodiment, the difference is that the limit member 31 is fixedly connected to the external wall by a limit screw 33, and the lock seat 51 of the lock assembly 5 is fixedly connected to the external wall by a screw. There is no need to set the base plate 1, and the cover plate is rotatably connected to the rotating block. The rest of the structure is the same as Example 1.

[0031] The working principle of this utility model:

[0032] When the cover 2 is in the closed state, the staff can insert the lock assembly 5 into the lock slot 22 to lock the cover 2 in the base plate 1 to prevent the cover 2 from moving when the train passes. When it is necessary to open the cover 2 to enter the inspection ladder, the staff will rotate and pull the lock assembly 5 to make the lock assembly 5 withdraw from the lock slot 22 of the cover 2. At this time, the cover 2 is unlocked, the staff opens the cover 2, and moves the hook portion 42 of the hook member 4 through the water flow groove 21 of the cover 2 to limit the cover 2. The inspection ladder is in the open state, which is convenient for the staff to complete the inspection work.

[0033] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A movable cover plate for railway inspection ladder entrance, characterized in that: The invention comprises a base plate (1), a cover plate (2), a limiting member (3), a hook member (4) and a locking assembly (5), wherein the limiting member (3) is arranged on the base plate (1), two ends of the cover plate (2) are respectively provided with a rotating shaft (21) and a locking groove (22), the rotating shaft (21) is rotatably connected to the limiting member (3), a clamping groove (11) is arranged at the first end of the base plate (1), the locking assembly (5) passes through the clamping groove (11) and is limitedly matched with the locking groove (22), and the hook member (4) is rotatably connected to an external railing and is limitedly matched with the cover plate (2).

2. The movable cover plate for railway inspection stair opening according to claim 1, characterized in that: The lock assembly (5) is provided with a lock seat (51), a limit lock (52) and a limit plate (53) in sequence; the lock seat (51) is fixedly connected to the bottom plate (1); a guide hole is provided in the middle of the lock seat; the limit lock (52) passes through the guide hole and is limitedly matched with the card slot (11); the limit plate (53) is fixedly connected to the lock seat (51) and is limitedly matched with the limit lock (52).

3. The movable cover plate for railway inspection ladder opening according to claim 1, characterized in that: The hook member (4) comprises a rotating portion (41) and a hook portion (42), wherein the hook portion (42) is arranged at one end of the rotating portion (41), the rotating portion (41) is rotatably connected to the external railing, and the hook portion (42) is limitedly matched with the cover plate (2).

4. The movable cover plate for railway inspection stair opening according to claim 3, characterized in that: A groove is provided on one side of the rotating portion (41) close to the hook portion (42).

5. The movable cover plate for railway inspection stair opening according to claim 1, characterized in that: The cover plate (2) is welded into one piece by the rotating shaft (21), the first stress-bearing flat steel (23), the second stress-bearing flat steel (25) and the round steel (24).

6. The movable cover plate for railway inspection stair opening according to claim 1, characterized in that: The limiting member (3) is provided with a fixed plate (31), a rotating block (32) and a limiting screw (33); the rotating block (32) is arranged on the fixed plate (31); the fixed plate (31) is provided with a fixing hole; the limiting screw (33) limits and presses the fixed plate (31) through the fixing hole; the rotating shaft (21) is rotatably connected to the rotating block (32).

7. The movable cover plate for railway inspection stair opening according to claim 1, characterized in that: The rotating shaft (21) and the cover plate (2) are welded into one piece.

8. The movable cover plate for railway inspection stair opening according to claim 1, characterized in that: The surfaces of the bottom plate (1), the cover plate (2), the limiting member (3), the hook member (4) and the locking assembly (5) are all provided with an anti-rust coating.

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