Maintenance ladder with auxiliary supporting structure

Abstract

The utility model discloses a maintenance ladder with an auxiliary support structure, which relates to the technical field of maintenance ladders, and comprises support ladders and support plates, the inner sides of the top ends of the two groups of support ladders are connected with a group of support plates through rotating shafts, and the front ends and the rear ends of the two groups of support ladders are provided with support shafts; and connecting blocks are welded to one ends of the four sets of supporting shafts correspondingly, and threaded rods are arranged in the four sets of connecting blocks in a penetrating and sleeving manner correspondingly. The rotating blocks and the threaded rods rotate forwards, the threaded rods spirally descend on the inner sides of the connecting blocks, the threaded rods push the supporting piles to descend, the supporting piles enter soil, the supporting ladder is supported through the four sets of supporting piles, the threaded rods, the connecting blocks and the supporting shafts, and the maintenance ladder is supported in an auxiliary mode through the supporting piles; the maintenance ladder can be kept stable on an uneven site and is not prone to inclining or moving, so that the stability and safety of the maintenance ladder are improved, and convenience is provided for a user to use the maintenance ladder.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance ladders, in particular to a maintenance ladder with an auxiliary supporting structure. Background Art

[0002] The railway contact network requires an inspection ladder for inspection and maintenance. The inspection ladder is a tool specifically used to maintain and inspect railway contact network equipment. The inspection ladder allows workers to inspect, rivet, adjust, replace, and install equipment to ensure the normal operation of the railway contact network equipment.

[0003] When the existing inspection ladder is in use, the two sets of supporting ladders are rotated by the rotating shaft, and the operators climb to a high place through the two sets of supporting ladders to inspect and maintain the railway contact network at a high position. During the construction and maintenance of the existing contact network, earth excavation, foundation construction, equipment installation and other operations during the construction process are likely to cause ground settlement, deformation and other problems, which in turn affect the flatness of the road surface. During the use of the inspection ladder, it is difficult to place it stably on the uneven road surface, which makes the inspection ladder prone to tilt or instability. Utility Model Content

[0004] The utility model aims to provide a maintenance ladder with an auxiliary support structure to solve the problem that the maintenance ladders currently on the market are difficult to be stably placed on uneven ground, as mentioned in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a maintenance ladder with an auxiliary support structure, including a support ladder and a support plate, wherein the inner sides of the top ends of two groups of support ladders are connected with a group of support plates through a rotating shaft.

[0006] Preferably, the front and rear ends of the two groups of support ladders are both provided with support shafts, and one ends of the four groups of support shafts are welded with connecting blocks.

[0007] Preferably, threaded rods are sleeved through the interiors of the four groups of connection blocks, rotating blocks are welded to the top ends of the four groups of threaded rods, and supporting piles are welded to the bottom ends of the four groups of threaded rods.

[0008] Preferably, the outer wall of the threaded rod is threadedly connected to the inner wall of the connecting block.

[0009] Preferably, positioning rods are welded to the front and rear ends of one group of the support ladders, and connecting shafts are welded to the front and rear ends of the other group of the support ladders, and the outer walls of the two groups of connecting shafts are sleeved with support frames.

[0010] Preferably, the inner side of the support frame is snap-connected with the outer side of the connecting shaft.

[0011] Preferably, a connecting bin is welded to the bottom end of the support plate, and limiting grooves are provided at the front and rear ends of the two groups of support ladders on the outside of the connecting bin, and a spring is provided inside the connecting bin.

[0012] Preferably, connecting rods extending to the outside are provided at both ends of the spring inside the connecting bin, and one end of the two groups of connecting rods are welded with limiting frames.

[0013] Preferably, the outer wall of the connecting rod is slidably connected to the inner wall of the connecting bin.

[0014] Preferably, one end of the limiting frame is snap-connected with the inside of the limiting groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When the maintenance ladder is in use, the rotating block and the threaded rod are rotated forward, the threaded rod spirally descends on the inner side of the connecting block, the threaded rod pushes the supporting pile to descend, the supporting pile enters the soil, and the supporting ladder is supported by four groups of supporting piles, the threaded rod, the connecting block and the supporting shaft. The maintenance ladder is auxiliary supported by the supporting piles, so that the maintenance ladder can remain stable on an uneven ground and is not prone to tilting or moving, thereby improving the stability and safety of the maintenance ladder and providing convenience for users.

[0017] 2. When the inspection ladder is stored, the two sets of limit frames and the two sets of connecting rods are pushed to move, and the two sets of connecting rods push the springs to compress and deform, and the two sets of supporting ladders are rotated through the rotating shaft outside the supporting plate, so that the two sets of supporting ladders are perpendicular to the supporting plate, and the two sets of connecting rods and the limit frames are pushed to move through the spring reset, and the two sets of limit frames limit the limiting grooves inside the two sets of supporting ladders. The two sets of supporting ladders are fixed by the limit frames and the limiting grooves, so that the inspection ladder can be folded, thereby reducing the space occupied by the inspection ladder, making the inspection ladder easy to store and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional folding diagram of the utility model;

[0020] Figure 3 It is a three-dimensional cutaway view of the utility model;

[0021] Figure 4 It is a top view cutaway view of the connection bin of the utility model;

[0022] Figure 5 It is a three-dimensional cutaway view of the connecting block of the utility model.

[0023] In the figure: 1, support ladder; 101, positioning rod; 102, connecting shaft; 103, support frame; 2, support plate; 3, support shaft; 301, connecting block; 302, threaded rod; 303, rotating block; 304, supporting pile; 4, connecting bin; 401, limiting groove; 402, spring; 403, connecting rod; 404, limiting frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a technical solution: a maintenance ladder with an auxiliary support structure, comprising a support ladder 1 and a support plate 2, wherein the inner sides of the top ends of two groups of support ladders 1 are connected with a group of support plates 2 through a rotating shaft.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 It can be seen that the front and rear ends of the two groups of support ladders 1 are both provided with support shafts 3, one end of the four groups of support shafts 3 are welded with connecting blocks 301, the insides of the four groups of connecting blocks 301 are all penetrated by threaded rods 302, the top ends of the four groups of threaded rods 302 are all welded with rotating blocks 303, the bottom ends of the four groups of threaded rods 302 are all welded with support piles 304, and the outer wall of the threaded rod 302 is threadedly connected to the inner wall of the connecting block 301.

[0027] When the maintenance ladder is needed, the operator unfolds the two groups of support ladders 1 outward and places the maintenance ladder on the ground. The support shaft 3 makes the connecting block 301, the threaded rod 302, the rotating block 303 and the supporting pile 304 perpendicular to the ground. The operator rotates the rotating block 303 forward. The forward rotation of the rotating block 303 drives the threaded rod 302 to rotate forward. The threaded rod 302 is threadedly connected to the connecting block 301, so that the threaded rod 302 spirals down on the inner side of the connecting block 301. The threaded rod 302 pushes the supporting pile 304 to descend. The supporting pile 304 enters the soil. The supporting ladder 1 is supported by the four groups of supporting piles 304, the threaded rod 302, the connecting block 301 and the supporting shaft 3. The maintenance ladder is auxiliary supported by the supporting pile 304, so that the maintenance ladder can remain stable on an uneven ground and is not prone to tilting or moving, thereby improving the stability and safety of the maintenance ladder and providing convenience for users.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It can be seen that the front and rear ends of one group of support ladders 1 are welded with positioning rods 101, and the front and rear ends of the other group of support ladders 1 are welded with connecting shafts 102. The outer walls of the two groups of connecting shafts 102 are both sleeved with support frames 103, and the inner side of the support frame 103 is engaged and connected with the outer side of the connecting shaft 102.

[0029] During specific implementation, when the maintenance ladder is needed, the maintenance ladder is moved to the position where maintenance operations are required, and the operator rotates the two groups of support ladders 1 on the outer sides of the support plate 2 through the rotating shaft, so that the distance between the bottom ends of the two groups of support ladders 1 gradually increases, and the support plate 2 is supported by the two groups of support ladders 1, and the support frame 103 is rotated on the outer wall of the connecting shaft 102, and the inner side of the support frame 103 is engaged with the outer side of the positioning rod 101, and the two groups of support ladders 1 are supported by the positioning rod 101, the connecting shaft 102 and the support frame 103, so that the maintenance ladder is easy to unfold stably, and the operator climbs to a high place through the maintenance ladder to perform maintenance operations on the position that needs maintenance.

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It can be seen that a connecting bin 4 is welded to the bottom end of the support plate 2, and limiting grooves 401 are provided at the front and rear ends of the two groups of support ladders 1 located on the outside of the connecting bin 4, a spring 402 is arranged inside the connecting bin 4, and connecting rods 403 extending to the outside are arranged at both ends of the spring 402 inside the connecting bin 4, and limiting frames 404 are welded to one end of the two groups of connecting rods 403, the outer wall of the connecting rod 403 is slidably connected to the inner wall of the connecting bin 4, and one end of the limiting frame 404 is snap-connected with the inside of the limiting groove 401.

[0031] During specific implementation, when it is necessary to store the inspection ladder, the operator pushes the two sets of limit frames 404 toward the inner side of the connecting warehouse 4, and the movement of the two sets of limit frames 404 drives the two sets of connecting rods 403 to move. The two sets of connecting rods 403 slide on the inner wall of the connecting warehouse 4. At the same time, the two sets of connecting rods 403 push the springs 402 to compress and deform, and the two sets of support ladders 1 are rotated through the rotating shaft outside the support plate 2 so that the two sets of support ladders 1 are perpendicular to the support plate 2, and the limit frames 404 are released. The springs 402 lose their limit and reset, and the springs 402 push the two sets of connecting rods 403 and the limit frames 404 to move. The two sets of limit frames 404 limit the limit grooves 401 inside the two sets of support ladders 1, and the two sets of support ladders 1 are fixed by the limit frames 404 and the limit grooves 401, so that the inspection ladder can be folded, thereby reducing the space occupied by the inspection ladder and making the inspection ladder easy to store and transport.

[0032] To sum up: when the maintenance ladder is in use, it is moved to the position where maintenance operations are required, the two groups of support ladders 1 are rotated by the rotating shaft on the outside of the support plate 2, the support frame 103 is rotated on the outer wall of the connecting shaft 102, and the inner side of the support frame 103 is engaged with the outer side of the positioning rod 101. The two groups of support ladders 1 are supported by the positioning rod 101, the connecting shaft 102 and the support frame 103, and the maintenance ladder is auxiliary supported by the support piles 304, so that the maintenance ladder is easy to place stably, and the operator climbs to a high place through the maintenance ladder to inspect and maintain the railway contact network at a high position.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A maintenance ladder with an auxiliary support structure, comprising a support ladder (1) and a support plate (2), characterized in that: A group of support plates (2) are connected to the inner sides of the top ends of the two groups of support ladders (1) via a rotating shaft; The front and rear ends of the two groups of support ladders (1) are both provided with support shafts (3), and one end of the four groups of support shafts (3) is welded with a connecting block (301); The four groups of connection blocks (301) are all provided with threaded rods (302) running through them, the top ends of the four groups of threaded rods (302) are all welded with rotating blocks (303), and the bottom ends of the four groups of threaded rods (302) are all welded with supporting piles (304); The outer wall of the threaded rod (302) is threadedly connected to the inner wall of the connecting block (301); A connecting bin (4) is welded to the bottom end of the support plate (2); limiting grooves (401) are provided at the front and rear ends of the two groups of support ladders (1) and are located outside the connecting bin (4); and a spring (402) is provided inside the connecting bin (4); The connection compartment (4) is provided with connection rods (403) extending to the outside at both ends of the spring (402), and one end of the two groups of connection rods (403) is welded with a limiting frame (404); The outer wall of the connecting rod (403) is slidably connected to the inner wall of the connecting bin (4).

2. The maintenance ladder with an auxiliary support structure according to claim 1, characterized in that: A positioning rod (101) is welded to the front and rear ends of one group of the support ladders (1), and a connecting shaft (102) is welded to the front and rear ends of another group of the support ladders (1). The outer walls of the two groups of connecting shafts (102) are sleeved with a support frame (103).

3. The maintenance ladder with an auxiliary support structure according to claim 1, characterized in that: The inner side of the support frame (103) is snap-connected with the outer side of the connecting shaft (102).

4. The maintenance ladder with an auxiliary support structure according to claim 1, characterized in that: One end of the limiting frame (404) is snap-connected to the inside of the limiting groove (401).

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