Building roof steel ladder stand

Abstract

The utility model relates to the technical field of building construction protection equipment, in particular to a building roof steel crawling ladder which comprises a crawling ladder body and a crawling ladder protection structure, the crawling ladder body is vertically arranged, and the crawling ladder protection structure is rotationally arranged on one side of the crawling ladder body; the crawling ladder protection structure comprises a mounting plate and limiting boxes, at least two limiting plates are arranged on one side of the crawling ladder body in the vertical direction, a rotating shaft is vertically and fixedly connected to the upper end of each limiting plate, and a sleeve rotationally matched with the rotating shaft is arranged on one side of the mounting plate; a locking mechanism is arranged between the other side of the mounting plate and the other side of the crawling ladder body; the limiting boxes are arranged on the mounting plate, and a gap is formed between every two adjacent limiting boxes and is larger than the vertical size of a transverse rod of the crawling ladder body. The limiting boxes are inserted between the adjacent transverse rods of the ladder stand body, so that the ladder stand body is protected, and the problem that protective doors need to be arranged on the two sides of a steel ladder stand without an attached wall structure on the periphery of a building roof is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction protection equipment, and more specifically to a steel ladder for a building roof. Background Art

[0002] With the continuous development of construction projects, the roof equipment of buildings is intricate. Roof steel ladders are used as an indispensable passage facility to inspect and repair roof equipment. In the prior art, roof steel ladders are generally attached to the outer wall. In order to prevent irrelevant personnel from climbing and causing unexpected safety accidents, a lockable single-sided protective door is often set on the part below 2000mm of the traditional ladder. When facing a steel ladder with no attached structure on all sides, the traditional practice is to set protective doors on the front and back of the ladder, which increases the production cost to a certain extent. Before climbing the ladder, professionals must open the front and back protective doors separately, and then close them in turn after the operation is completed. In case of emergency, the operation is very inconvenient.

[0003] Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, a steel ladder for a building roof suitable for scenes with no surrounding attached structures is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A steel ladder for a building roof, comprising a ladder body and a ladder protection structure, wherein the ladder body is vertically arranged, and the ladder protection structure is rotatably arranged on one side of the ladder body;

[0007] The ladder protection structure comprises a mounting plate and a limit box. At least two limit plates are arranged on one side of the ladder body in the vertical direction. A rotating shaft is vertically fixed to the upper end of each limit plate. A sleeve that rotates with the rotating shaft is arranged on one side of the mounting plate. A locking mechanism is arranged between the other side of the mounting plate and the other side of the ladder body.

[0008] The limit box is arranged on the mounting plate, and a gap is arranged between adjacent limit boxes and the gap is larger than the vertical dimension of the cross bar of the ladder body; the limit box includes a panel and a cubic frame, and a plurality of mounting angle steels are fixedly arranged along the vertical direction on one side of the cubic frame close to the mounting plate, and a fixing plate is arranged on the mounting plate, and the fixing plate is connected to one of the mounting angle steels of the limit box by bolts, and the panel is arranged on the exposed surface of the cubic frame.

[0009] Preferably, the locking mechanism includes a locking head and two T-shaped rods respectively arranged on the ladder body and the mounting plate, the cross-section of the T-shaped rod is semicircular, and when the mounting plate is in contact with the ladder body, the two T-shaped rods are in contact with each other and locked by the locking head.

[0010] Preferably, a plurality of positioning holes are arranged on the upper end of the limit plate along the circumference of the rotating shaft, a mounting hole is eccentrically arranged on the lower end of the sleeve, a positioning rod is slidably arranged in the mounting hole, the upper end of the positioning rod is connected to the bottom of the mounting hole by a spring, and a spherical surface matching the positioning hole is arranged on the lower end of the positioning rod.

[0011] Preferably, three positioning holes are provided, and the angle between adjacent positioning holes and the connecting line of the rotating shaft is 90°.

[0012] Preferably, a plug-in rod is provided at the upper end of the ladder body, a plug-in hole matching the plug-in rod is provided at the lower end of the ladder body, a through hole I penetrating the plug-in hole is provided on the ladder body in a direction perpendicular to the axis of the plug-in hole, a through hole II is provided on the plug-in rod, and when adjacent ladder bodies are plugged into each other, through holes I and II are connected by bolts.

[0013] Preferably, the surfaces of the ladder body and the ladder protection structure are painted with anti-rust paint.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a limit box, which is inserted between adjacent cross bars of the ladder body to protect the ladder body, solves the problem that protective doors must be provided on both sides of a steel ladder without attached wall structures around the roof of a building, and saves time for maintenance personnel to open and close the protective doors in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the ladder body assembly;

[0019] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure.

[0021] Figure 5 for Figure 2 A partial enlarged view of B in the middle;

[0022] Figure 6 It is a schematic diagram of the matching between the plug rod and the plug hole;

[0023] Figure 7This is a schematic diagram of the limit box decomposition.

[0024] In the figure: 1-ladder body, 11-limiting plate, 12-rotating shaft, 13-positioning hole, 14-plug-in rod, 15-plug-in hole, 16-through hole I, 17-through hole II, 2-ladder protection structure, 21-mounting plate, 22-limiting box, 23-sleeve, 24-cube skeleton, 25-mounting angle steel, 26-fixing plate, 27-positioning rod, 28-spring, 29-spherical surface, 3-locking mechanism, 31-locking head, 32-T-rod. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 7 As shown, a steel ladder for building roof includes a ladder body 1 and a ladder protection structure 2. The ladder body 1 is vertically arranged, and the ladder protection structure 2 is rotatably arranged on one side of the ladder body 1. When the ladder protection structure 2 is rotated to fit the ladder body 1, the ladder body 1 is protected.

[0027] The ladder protection structure 2 includes a mounting plate 21 and a limit box 22. At least two limit plates 11 are arranged along the vertical direction on one side of the ladder body 1. The upper end of each limit plate 11 is vertically fixed with a rotating shaft 12. A sleeve 23 that rotates with the rotating shaft 12 is arranged on one side of the mounting plate 21. The mounting plate 21 is plugged into the rotating shaft 12 through the sleeve 23 to achieve rotational cooperation with the ladder body 1. A plurality of positioning holes 13 are arranged along the circumference of the rotating shaft 12 on the upper end of the limit plate 11. Preferably, three positioning holes 13 are arranged, corresponding to the fitting state, 90° open state and 180° open state of the mounting plate 21 and the ladder body 1, respectively. A mounting hole is eccentrically arranged at the lower end of the sleeve 23. A positioning rod 27 is slidably arranged in the mounting hole. The upper end of the positioning rod 27 is connected to the bottom of the mounting hole through a spring 28. The lower end of the positioning rod 27 is arranged with a spherical surface 29 that matches the positioning hole 23. When the lower end of the positioning rod 27 is inserted into the positioning hole 13 , the mounting plate 21 can be restricted to a corresponding state.

[0028] A locking mechanism 3 is provided between the other side of the mounting plate 21 and the other side of the ladder body 1. The locking mechanism 3 includes a locking head 31 and two T-shaped rods 32 respectively provided on the ladder body 1 and the mounting plate 21. The cross-section of the T-shaped rod 32 is semicircular. When the mounting plate 21 is fitted with the ladder body 1, the two T-shaped rods 32 are fitted with each other and locked by the locking head 31. The ladder body 1 and the ladder protection structure 2 are locked.

[0029] The limit box 22 is set on the mounting plate 21, and a gap is set between adjacent limit boxes 22, and the gap is larger than the vertical dimension of the cross bar of the ladder body 1, so that the limit box 22 is convenient to be inserted into the ladder body 1. The limit box 22 includes a panel and a cubic frame 24. A mounting angle steel 25 is fixedly set in the vertical direction on one side of the cubic frame 24 close to the mounting plate 21. In order to adapt to ladders with different spans, multiple mounting angle steels 25 are set in the vertical direction. A fixing plate 26 is set on the mounting plate 21. The fixing plate 26 is connected to one of the mounting angle steels 25 of the limit box 22 by bolts, and the remaining 5 sides of the cubic frame 24 are all provided with panels.

[0030] Preferably, in order to achieve different ladder heights, a splicing structure can be adopted. For example, a plug-in rod 14 is provided at the upper end of the ladder body 1, and a plug-in hole 15 matching the plug-in rod 14 is provided at the lower end of the ladder body 1. The ladder body 1 is provided with a through hole Ⅰ16 penetrating the plug-in hole 15 in a direction perpendicular to the axis of the plug-in hole, and the plug-in rod 14 is provided with a through hole Ⅱ17. When adjacent ladder bodies 1 are plugged into each other, through holes Ⅰ16 and Ⅱ17 are connected by bolts.

[0031] In order to adapt to outdoor conditions, the surfaces of the ladder body 1 and the ladder protection structure 2 are painted with anti-rust paint.

[0032] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A steel ladder for building roof, characterized by: It comprises a ladder body (1) and a ladder protection structure (2), wherein the ladder body (1) is arranged vertically, and the ladder protection structure (2) is rotatably arranged on one side of the ladder body (1); The ladder protection structure (2) comprises a mounting plate (21) and a limit box (22); at least two limit plates (11) are arranged along the vertical direction on one side of the ladder body (1); a rotating shaft (12) is vertically fixedly connected to the upper end of each limit plate (11); a sleeve (23) rotatably matched with the rotating shaft (12) is arranged on one side of the mounting plate (21); a locking mechanism (3) is arranged between the other side of the mounting plate (21) and the other side of the ladder body (1); The limit boxes (22) are arranged on the mounting plate (21), and gaps are arranged between adjacent limit boxes (22), and the gaps are larger than the vertical dimensions of the crossbars of the ladder body (1); the limit boxes (22) comprise a panel and a cubic frame (24), a side of the cubic frame (24) close to the mounting plate (21) is fixedly provided with a plurality of mounting angle steels (25) in the vertical direction, a fixing plate (26) is arranged on the mounting plate, and the fixing plate (26) is connected to one of the mounting angle steels (25) of the limit box (22) by bolts, and the panel is arranged on an exposed surface of the cubic frame (24).

2. A steel ladder for building roof according to claim 1, characterized in that: The locking mechanism (3) comprises a locking head (31) and two T-shaped rods (32) respectively arranged on the ladder body (1) and the mounting plate (21); the cross-section of the T-shaped rod (32) is semicircular; when the mounting plate (21) is fitted with the ladder body (1), the two T-shaped rods (32) fit together and are locked by the locking head (31).

3. A steel ladder for building roof according to claim 1, characterized in that: The upper end of the limit plate (11) is provided with a plurality of positioning holes (13) along the circumference of the rotating shaft (12); the lower end of the sleeve (23) is eccentrically provided with a mounting hole; a positioning rod (27) is slidably arranged in the mounting hole; the upper end of the positioning rod (27) is connected to the bottom of the mounting hole via a spring (28); and the lower end of the positioning rod (27) is provided with a spherical surface (29) that matches the positioning hole (13).

4. A steel ladder for building roof according to claim 3, characterized in that: Three positioning holes (13) are provided, and the angle between the lines connecting adjacent positioning holes (13) and the rotating shaft (12) is 90°.

5. The steel ladder for building roof according to claim 1, characterized in that: The upper end of the ladder body (1) is provided with a plug-in rod (14), the lower end of the ladder body (1) is provided with a plug-in hole (15) matched with the plug-in rod (14), the ladder body (1) is provided with a through hole I (16) penetrating the plug-in hole (15) in a direction perpendicular to the axis of the plug-in hole, the plug-in rod (14) is provided with a through hole II (17), and when adjacent ladder bodies (1) are plugged into each other, the through hole I (16) and the through hole II (17) are connected by bolts.

6. A steel ladder for building roof according to claim 1, characterized in that: The surfaces of the ladder body (1) and the ladder protection structure (2) are both painted with anti-rust paint.

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