Safety ladder assembly for staircase

Abstract

The safety ladder assembly comprises a safety ladder assembly, the safety ladder assembly comprises a safety ladder flat plate, a first supporting leg and a second supporting leg, and the first supporting leg and the second supporting leg are connected to the bottom face of the safety ladder flat plate. The connecting assembly comprises a long-strip-shaped sliding groove opening formed in the bottom face of the safety ladder flat plate, a sliding strip clamped with the long-strip-shaped sliding groove opening, a mounting frame connected to the bottom face of the sliding strip, an L-shaped plate fixed to the outer side wall of the mounting frame, a first threaded hole formed in the surface of the L-shaped plate, a rectangular hole formed in the surface of the mounting frame and a U-shaped limiting fork arranged on one side of the L-shaped plate. The safety ladder assembly and the connecting assembly are matched with each other, so that the three steps in the staircase form the same horizontal placement surface during use, the purpose of assisting climbing operation tools such as herringbone ladders to be stably and safely erected is achieved, the working efficiency is improved, the safety of workers during working is guaranteed, and the working efficiency is improved. And the whole safety ladder can be flatly placed for storage and is convenient for maintenance workers to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of safety ladders, in particular to a safety ladder frame for stairwells. Background Art

[0002] Due to the particularity of the stairwell structure, the steps are raised, and some maintenance surfaces are often at a height that maintenance workers cannot stand and reach. Also, due to the uneven height and narrowness of the stair steps, it is impossible to directly set up a herringbone ladder. The maintenance workers have low work efficiency, great safety hazards at work, and it is inconvenient for maintenance workers to perform daily maintenance and inspection. Utility Model Content

[0003] Therefore, the purpose of the utility model is to provide a safety ladder rack for stairwells. Through the cooperation of the safety ladder assembly and the connecting assembly, when in use, the three steps in the stairwell form the same horizontal placement surface, so as to achieve the purpose of assisting the stable and safe installation of high-altitude working tools such as stepladders, improve work efficiency and ensure the safety of employees at work, and the entire safety ladder rack can be laid flat for storage, which is convenient for maintenance workers to carry and use.

[0004] In order to solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solution: a safety ladder frame for stairwells, comprising:

[0005] The safety ladder assembly includes a safety ladder plate, a first support leg and a second support leg connected to the bottom surface of the safety ladder plate;

[0006] The connecting component includes a long slide groove opening provided on the bottom surface of the safety ladder plate, a slide bar engaged with the long slide groove opening, a mounting frame connected to the bottom surface of the slide bar, an L-shaped plate fixed to the outer side wall of the mounting frame, a first threaded hole provided on the surface of the L-shaped plate, a rectangular hole provided on the surface of the mounting frame, a U-shaped limit fork provided on one side of the L-shaped plate, a second threaded hole provided on the surface of the U-shaped limit fork and a threaded long rod provided below the mounting frame.

[0007] As a preferred solution of the safety ladder frame for stairwells described in the utility model, the first supporting leg is connected to the installation frame through a rotating shaft, and the first supporting leg swings through the rotating shaft.

[0008] As a preferred solution of the safety ladder frame for stairwells described in the utility model, there are four rectangular holes, and the four rectangular holes are distributed at four corners of the installation frame;

[0009] Among them, four rectangular holes are penetrated by the U-shaped limiting fork, and the long threaded rod is connected to the second threaded hole.

[0010] As a preferred solution of the safety ladder for stairwells described in the utility model, the length of the first supporting leg is greater than the length of the second supporting leg, and the connection structure of the second supporting leg is the same as that of the first supporting leg.

[0011] As a preferred solution of a safety ladder frame for stairwells described in the utility model, it also includes a friction assembly, which includes a long threaded hole opened on the bottom surface of the first supporting leg, a threaded column connected to the long threaded hole, and a friction disk fixed on the bottom surface of the threaded column.

[0012] As a preferred solution of the safety ladder for stairwells described in the utility model, the bottom surface of the friction disc is provided with rubber protrusions;

[0013] Among them, the rubber raised point contacts the stair step.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] 1. The utility model cooperates with the safety ladder assembly and the connecting assembly to form a same horizontal placement surface when in use, so as to achieve the purpose of smoothly and safely setting up high-altitude working tools such as ladders, improve work efficiency and ensure the safety of employees at work, and the entire safety ladder frame can be laid flat for storage, which is convenient for maintenance workers to carry and use.

[0016] 2. Based on the beneficial effect 1, the friction component is set to increase the friction between the support leg and the ground, improve the stability of the safety ladder, and the friction disc is easy to replace, which can ensure the stability of use in different environments.

[0017] During specific use, the first supporting leg and the second supporting leg are respectively supported on different step surfaces, and one end of the safety ladder slab is in contact with the other step surface, so that the three steps can form a horizontal placement surface, and maintenance personnel can work directly on the safety ladder slab to avoid setting up a herringbone ladder. During use, the U-shaped limiting fork limits the first supporting leg from two directions to avoid shaking. When use is finished, the user unscrews the long threaded rod to pull out the U-shaped limiting fork. At this time, the user pulls the first supporting leg, and the first supporting leg rotates. When the first supporting leg is in contact with the bottom surface of the safety ladder slab, the user inserts the U-shaped limiting fork into the rectangular hole, and connects the long threaded rod to the second threaded hole. At this time, the U-shaped limiting fork can lift the first supporting leg, which is convenient for folding and storage, and is convenient for maintenance workers to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the connection assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the folding and storage structure of the support legs of the utility model;

[0022] Figure 4 This is a structural diagram of the friction component of the utility model.

[0023] In the figure: 11, safety ladder plate; 12, first supporting leg; 13, second supporting leg; 21, long sliding groove; 22, sliding bar; 23, mounting frame; 24, L-shaped plate; 25, first threaded hole; 26, rectangular hole; 27, U-shaped limit fork; 28, second threaded hole; 29, threaded long rod; 31, threaded long hole; 32, threaded column; 33, friction plate. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The utility model provides a safety ladder frame for stairwells. Through the cooperation of the arranged safety ladder assembly and the connecting assembly, when in use, three steps in the stairwell form the same horizontal placement surface, so as to achieve the purpose of smoothly and safely setting up high-altitude working tools such as a stepladder, improve work efficiency and ensure the safety of employees at work. Moreover, the whole safety ladder frame can be laid flat for storage, so that it is convenient for maintenance workers to carry and use.

[0029] Example 1

[0030] Figure 1 , Figure 2 , Figure 3 The utility model is a schematic diagram of the overall structure of a safety ladder frame for stairwells according to an embodiment of the present invention. Figure 1 , Figure 2 , Figure 3 The main structure of this embodiment includes: a safety ladder assembly and a connection assembly.

[0031] The safety ladder assembly is used in conjunction with the connecting assembly. Specifically, the safety ladder assembly includes a safety ladder plate 11, a first supporting leg 12 and a second supporting leg 13 connected to the bottom surface of the safety ladder plate 11;

[0032] During specific use, the first supporting leg 12 and the second supporting leg 13 are supported on different step surfaces respectively, and one end of the safety ladder plate 11 is in contact with another step surface, so that the three steps can form a horizontal placement surface, and maintenance personnel can work directly on the safety ladder plate 11 to avoid setting up a herringbone ladder.

[0033] The connection assembly is used for convenient folding and storage. Specifically, the connection assembly includes a long slide groove 21 provided on the bottom surface of the safety ladder flat plate 11, a slide bar 22 engaged with the long slide groove 21, a mounting frame 23 connected to the bottom surface of the slide bar 22, an L-shaped plate 24 fixed to the outer wall of the mounting frame 23, a first threaded hole 25 provided on the surface of the L-shaped plate 24, a rectangular hole 26 provided on the surface of the mounting frame 23, a U-shaped limit fork 27 provided on one side of the L-shaped plate 24, a second threaded hole 28 provided on the surface of the U-shaped limit fork 27, and a threaded long rod 29 provided below the mounting frame 23;

[0034] During specific use, the U-shaped limit fork 27 limits the first support leg 12 from two directions to prevent shaking. When use is finished, the user unscrews the long threaded rod 29 to pull out the U-shaped limit fork 27. At this time, the user pulls the first support leg 12, and the first support leg 12 rotates. When the first support leg 12 is in contact with the bottom surface of the safety ladder plate 11, the user inserts the U-shaped limit fork 27 into the rectangular hole 26 and connects the long threaded rod 29 to the second threaded hole 28. At this time, the U-shaped limit fork 27 can lift the first support leg 12, which is convenient for folding and storage, and convenient for maintenance workers to carry and use.

[0035] Example 2

[0036] Please refer to Figure 4 The friction component is provided to increase the friction between the support leg and the ground, thereby improving the stability of the safety ladder. The friction disc 33 is easy to replace, thus ensuring the stability of the ladder in different environments.

[0037] Specifically, it also includes a friction assembly, which includes a threaded long hole 31 opened on the bottom surface of the first support leg 12, a threaded column 32 connected to the threaded long hole 31, and a friction plate 33 fixed to the bottom surface of the threaded column 32;

[0038] During specific use, the friction disc 33 is located on the end face of the supporting leg, and the friction disc 33 directly contacts the step, thereby increasing the friction force. When the friction disc 33 is worn out during use, the user rotates the friction disc 33, and the threaded column 32 rotates in the threaded long hole 31, so that the friction disc 33 can be replaced, so as to be suitable for use in different step environments.

[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A safety ladder for stairwells, characterized in that: include: A safety ladder assembly comprises a safety ladder plate (11), a first supporting leg (12) and a second supporting leg (13) connected to the bottom surface of the safety ladder plate (11); The connecting assembly comprises a long sliding groove (21) provided on the bottom surface of the safety ladder plate (11), a sliding strip (22) engaged with the long sliding groove (21), a mounting frame (23) connected to the bottom surface of the sliding strip (22), an L-shaped plate (24) fixed to the outer side wall of the mounting frame (23), a first threaded hole (25) provided on the surface of the L-shaped plate (24), a rectangular hole (26) provided on the surface of the mounting frame (23), a U-shaped limiting fork (27) provided on one side of the L-shaped plate (24), a second threaded hole (28) provided on the surface of the U-shaped limiting fork (27), and a threaded long rod (29) provided below the mounting frame (23).

2. A safety ladder for stairwells according to claim 1, characterized in that: The first supporting leg (12) is connected to the installation frame (23) via a rotating shaft, and the first supporting leg (12) swings via the rotating shaft.

3. A safety ladder for stairwells according to claim 2, characterized in that: Four rectangular holes (26) are provided, and the four rectangular holes (26) are distributed at four corners of the installation frame (23); The four rectangular holes (26) are penetrated by the U-shaped limiting fork (27), and the long threaded rod (29) is connected to the second threaded hole (28).

4. A safety ladder for stairwells according to claim 3, characterized in that: The length of the first supporting leg (12) is greater than the length of the second supporting leg (13), and the second supporting leg (13) has the same connection structure as the first supporting leg (12).

5. A safety ladder frame for stairwells according to claim 4, characterized in that: It also includes a friction assembly, which includes a long threaded hole (31) opened on the bottom surface of the first supporting leg (12), a threaded column (32) connected to the long threaded hole (31), and a friction plate (33) fixed to the bottom surface of the threaded column (32).

6. A safety ladder for stairwells according to claim 5, characterized in that: The bottom surface of the friction disc (33) is provided with a rubber protrusion; Among them, the rubber raised point contacts the stair step.

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