Crawling ladder structure of angle steel tower

Abstract

The utility model discloses an angle steel tower ladder stand structure, which belongs to the technical field of electric power iron towers, and comprises two side plates, a plurality of pedal rods for climbing are connected to the opposite side surfaces of the two side plates at equal intervals, fixed boxes are fixedly arranged on the side surfaces of the two side plates, and the inner side walls of the two fixed boxes are rotatably connected with bidirectional threaded rods. The circumferential sides of the two bidirectional threaded rods are symmetrically sleeved with moving plates in a threaded mode, an empty groove is formed in one side face of each fixed box, limiting blocks are fixedly arranged on the opposite side faces of the two moving plates and located on the two sides of the empty groove, sliding rods are fixedly arranged on the inner side walls of the two empty grooves, and the circumferential sides of the two sliding rods are slidably sleeved with sliding blocks. The two sliding blocks extend to one side of the fixing box, and limiting grooves clamped with the limiting blocks are formed in the two side faces of the two sliding blocks. According to the angle steel tower ladder stand structure, the problem that a worker is difficult to rest in the climbing process is solved, and the influence on the physical and mental safety of the worker is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power towers, in particular to a ladder structure for angle steel towers. Background Technique

[0002] An electric power tower is a tower-shaped building for power transmission. The electric power tower is mainly composed of angle steel, connecting steel plates and bolts. At present, all electric power towers are equipped with ladders for workers to climb onto the electric power tower through the ladders for operation. Since the height of the electric power tower is usually relatively high and it is difficult to climb to the top of the tower at one time, the workers will rest after climbing a certain distance to replenish their physical strength. However, most of the existing ladders do not have a structure for people to rest, resulting in the workers having to lie on the ladder to rest. When lying on the ladder to rest, not only can they not get a good rest, but they are also prone to slipping of the hands or feet due to distraction of attention, thus easily causing safety accidents and affecting the physical and mental safety of the workers.

[0003] For example, the existing Chinese publication number is: CN215369668U, a ladder for a tower, which: "comprises a first side plate, a second side plate and a stepping rod. A scale is engraved on one side of the first side plate. A second side plate is arranged on the other side of the first side plate. The stepping rod is welded between the first side plate and the second side plate. An anti-slip pad is glued to the top of the second side plate."

[0004] It can be seen that the cited patent document has the problem of being inconvenient for workers to rest. Content of the Utility Model

[0005] The purpose of the utility model is to provide a ladder structure for angle steel towers to solve the problems put forward in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A ladder structure for angle steel towers, comprising two side plates. A number of stepping rods for climbing are equidistantly connected to the opposite side surfaces of the two side plates. Fixed boxes are fixedly arranged on one side surface of each of the two side plates. The inner side walls of the two fixed boxes are rotatably connected with bidirectional threaded rods. Moving plates are symmetrically and threadedly sleeved on the circumferences of the two bidirectional threaded rods. Empty slots are formed on one side surface of each of the two fixed boxes. Limiting blocks are fixedly arranged on the opposite side surfaces of the two moving plates and on both sides of the empty slots. Slide rods are fixedly arranged on the inner side walls of the two empty slots. Slide blocks are slidably sleeved on the circumferences of the two slide rods. Limiting grooves for engaging with the limiting blocks are formed on both side surfaces of the two slide blocks. A seat board for workers to rest is fixedly arranged on one side of the opposite side surfaces of the two slide blocks.

[0007] Preferably, a number of support frames are equidistantly and fixedly arranged on one side surface of each of the two side plates. A connecting frame is connected to one side of the opposite side surfaces of every two support frames.

[0008] Preferably, the seat board is arranged between two of the support frames and on one side of the connecting frame, and the free ends of the two sliding rods are fixedly arranged on one side surface of the connecting frame.

[0009] Preferably, a transverse groove for the seat board to pass through is horizontally formed on one side surface of the connecting frame, and a plurality of card holes are equidistantly arranged on the top surface of the connecting frame and the top surface of the seat board.

[0010] Preferably, a clamping rod is clamped in the inner cavities of two card holes where the top surface of the connecting frame is aligned with the top surface of the seat board.

[0011] Preferably, limiting rods are horizontally and fixedly arranged on the inner walls of two sides of the fixed box, and the two moving plates are respectively sleeved on the circumferences of the two limiting rods in a sliding manner.

[0012] Preferably, a plurality of hooks for buckling safety belts are equidistantly installed on one side surface of the two side plates opposite to each other, and the plurality of hooks and the plurality of stepping rods are arranged in a staggered manner.

[0013] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0014] In this angle steel tower ladder structure, through the arrangement of the sliding rod and the slider, the seat board can be driven to move. When a person needs to rest, the seat board can be moved towards the stepping rod direction, so that when the person puts their feet on the stepping rod, they can sit on the seat board, which is convenient for the person to rest. After the rest is completed, pushing the seat board in the reverse direction can create a distance for the person to pass between the seat board and the stepping rod, allowing the staff to continue climbing, avoiding the situation where when the person is physically exhausted, they can only lie on the ladder to rest, which is prone to slipping and falling, reducing the occurrence of safety accidents and reducing the impact on the physical and mental safety of the person.

[0015] Through the arrangement of the support frame and the connecting frame, the sliding rod can be supported, and thus the seat board can be supported. The arrangement of the limiting block and the limiting groove can fix the positions of the slider and the seat board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the stepping rod and the hook of the present utility model;

[0019] Figure 3 Cross-sectional views of the fixing box and the slider of the present utility model;

[0020] Figure 4 Schematic structural diagram of the support frame and the seat board of the present utility model.

[0021] Description of reference numerals:

[0022] In the figure: 1, side plate; 2, stepping rod; 3, fixing box; 4, bidirectional threaded rod; 5, moving plate; 6, limiting block; 7, empty groove; 8, sliding rod; 9, slider; 10, limiting groove; 11, seat board; 12, support frame; 13, connecting frame; 14, transverse groove; 15, clamping hole; 16, clamping rod; 17, limiting rod; 18, hook. Specific implementation manners

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown by the present utility model, and are hereby explained together.

[0025] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0026] As Figures 1 to 4 shown, a kind of angle steel tower climbing ladder structure includes two side plates 1, the two side plates 1 are installed on one side of the power tower, a plurality of stepping rods 2 for climbing are equidistantly connected to the opposite side surfaces of the two side plates 1, and an anti-slip pad is connected to the periphery of each stepping rod 2 to increase the friction between the staff and the stepping rod 2. A plurality of hooks 18 for buckling safety belts are equidistantly installed on the opposite side surfaces of the two side plates 1. The plurality of hooks 18 and the plurality of stepping rods 2 are arranged alternately. After the staff wears the safety belt, the buckle of the safety belt is buckled at one of the hooks 18, so that the personnel can climb along the stepping rod 2. Along the climbing distance, the personnel need to take out the safety belt buckle buckled in one of the hooks 18 and buckle it at another hook 18, so that while climbing upward, the safety belt and the hook 18 can protect the safety of the staff. Since there are hooks 18 on both sides, there will be two buckles of the safety belt buckled at the hooks 18 on both sides.

[0027] On one side of each of the two side plates 1, a fixed box 3 is fixedly provided. On the inner side walls of the two fixed boxes 3, a bidirectional threaded rod 4 is rotatably connected. One end of the bidirectional threaded rod 4 penetrates through the fixed box 3 and is connected with a turning knob. On the circumferences of the two bidirectional threaded rods 4, moving plates 5 are symmetrically and threadedly sleeved. On one side surface of each of the two fixed boxes 3, an empty slot 7 is opened. On the opposite side surfaces of the two moving plates 5 and on both sides of the empty slot 7, limiting blocks 6 are fixedly provided. On the inner wall of both sides of the empty slot 7, grooves for the limiting blocks 6 to pass through are provided. By rotating the turning knob, the personnel can drive the bidirectional threaded rod 4 to rotate, thereby driving the two moving plates 5 to move in opposite or relative directions, and then driving the two limiting blocks 6 to pass through the grooves and enter the inner cavity of the empty slot 7. On the inner side walls of both sides of the fixed box 3, limiting rods 17 are horizontally fixedly provided. The two moving plates 5 are respectively slidably sleeved on the circumferences of the two limiting rods 17. When the moving plates 5 move, they will move on the circumferences of the limiting rods 17, so that the limiting rods 17 can limit the movement of the moving plates 5.

[0028] On the inner side walls of the two empty slots 7, sliding rods 8 are fixedly provided. The free ends of the two sliding rods 8 extend to one side of the fixed box 3. On the circumferences of the two sliding rods 8, sliding blocks 9 are slidably sleeved. The size of the sliding blocks 9 is the same as that of the empty slots 7, so that the sliding blocks 9 can enter the inner cavity of the empty slots 7. On both side surfaces of the two sliding blocks 9, limiting slots 10 for engaging with the limiting blocks 6 are opened. By moving the sliding blocks 9, the personnel can make the sliding blocks 9 move on the circumferences of the sliding rods 8 and then enter the inner cavity of the empty slots 7 along the sliding rods 8, so that the limiting slots 10 on both side surfaces of the sliding blocks 9 and the positions of the two limiting blocks 6 in the inner cavity of the fixed box 3 are on the same horizontal plane. At this time, by rotating the turning knob, the limiting blocks 6 can be driven to move and enter the inner cavity of the empty slots 7 through the bidirectional threaded rods 4 and the moving plates 5, so that the limiting blocks 6 enter the inner cavity of the limiting slots 10, and with the self-locking of the threads, the limiting blocks 6 and the limiting slots 10 can fix the positions of the sliding blocks 9.

[0029] On one side of the opposite sides of the two sliders 9, a seat board 11 for staff to rest is fixedly installed. The seat board 11 is arranged on one side of the stepping rod 2, and the number of seat boards 11 is equidistantly set according to the height of the power transmission tower. When a person climbing feels exhausted, they need to climb to one side of the seat board 11. After climbing to one side of the seat board 11, pull the seat board 11 to make the seat board 11 move towards the direction of the stepping rod 2, so that the seat board 11 can drive the two sliders 9 to move around the two sliding rods 8, and then make the sliders 9 enter the inner cavity of the empty slots 7, and cooperate with the bidirectional threaded rod 4, the moving plate 5, the limiting block 6 and the limiting slot 10 to fix the positions of the sliders 9, thus fixing the position of the seat board 11. At this time, the staff can sit on the surface of the seat board 11 with their feet on the stepping rod 2, so as to provide a place for the staff to rest, and then replenish their physical strength for subsequent climbing, avoiding the situation that when a person is exhausted, they can only lie on the ladder to rest, which is prone to slipping and falling, reducing the occurrence of safety accidents and the impact on the physical and mental safety of personnel.

[0030] After the staff finish resting, reverse-rotate the knob, which can reversely drive the moving plate 5 and the limiting block 6 to move, take the limiting block 6 out of the inner cavity of the limiting slot 10, and cancel the fixation of the slider 9. At this time, push the seat board 11 to make the seat board 11 move away from the direction of the stepping rod 2, so that the distance between the seat board 11 and the stepping rod 2 is sufficient for the staff to pass through, avoiding the seat board 11 affecting the subsequent climbing of the staff.

[0031] On one side of the two side plates 1, a number of support frames 12 are equidistantly and fixedly installed. On one side of the opposite sides of every two support frames 12, a connecting frame 13 is connected. The seat board 11 is arranged between two of the support frames 12 and on one side of the connecting frame 13. The free ends of the two sliding rods 8 are fixedly installed on one side surface of the connecting frame 13, and the connecting frame 13 and the two support frames 12 are on the same horizontal plane as the seat board 11, so that the support frames 12 and the connecting frame 13 can support the sliding rods 8, thereby supporting the sliders 9 and the seat board 11 to improve stability. Moreover, multiple support frames 12 and connecting frames 13 can form a protective frame, which can prevent the situation that the staff will float in the air when falling. When the staff falls, they will always be on one side of the stepping rod 2, thus facilitating the staff to grab the stepping rod 2. And a bracket is longitudinally connected between every two support frames 12 to improve the stability of the support frames 12 and the connecting frame 13.

[0032] On one side of the connecting frame 13, a transverse groove 14 is horizontally opened for the seat board 11 to pass through. A number of card holes 15 are equidistantly arranged on the top surface of the connecting frame 13 and the top surface of the seat board 11. A card rod 16 is engaged in the inner cavities of two card holes 15 that are aligned in position between the top surface of the connecting frame 13 and the top surface of the seat board 11. When the seat board 11 moves in the direction away from the stepping rod 2, the seat board 11 can enter the inner cavity of the transverse groove 14, and one of the card holes 15 on the top surface of the seat board 11 is aligned with the card hole 15 on the top surface of the connecting frame 13. At this time, the card rod 16 is inserted into the two aligned card holes 15, and the position of the seat board 11 can be fixed, preventing the seat board 11 from moving towards the stepping rod 2 due to external factors, thus affecting the subsequent climbing of the staff.

[0033] Working principle:

[0034] For this angle steel tower climbing ladder structure, the staff wears a safety belt and buckles the safety belt in the hook 18, enabling the staff to climb along the stepping rod 2. Along the climbing distance, the buckle of the safety belt can be successively moved from this hook 18 to another hook 18 to ensure the safety of the staff. When the staff continues to climb and becomes physically exhausted, the staff climbs to one side of the seat board 11 and pulls the seat board 11, causing the seat board 11 to move towards the stepping rod 2, thereby driving the slider 9 to move around the sliding rod 8 and allowing the slider 9 to enter the inner cavity of the empty groove 7. Furthermore, the limiting grooves 10 on both sides of the slider 9 and the limiting blocks 6 are in the same horizontal position. At this time, rotate the knob, and the knob drives the two moving plates 5 to move in opposite directions through the bidirectional threaded rod 4, enabling the two moving plates 5 to drive the limiting blocks 6 to move and enter the empty groove 7 respectively, so that the two limiting blocks 6 can be engaged in the inner cavities of the two limiting grooves 10, fixing the position of the slider 9 with the limiting blocks 6 and the limiting grooves 10, thereby fixing the position of the seat board 11. Then the staff can sit on the surface of the seat board 11 with a fixed position. At this time, the staff's feet can rest on the stepping rod 2, enabling the staff to rest, replenish physical strength for subsequent climbing, and avoiding the situation where the staff can only lie on the climbing ladder to rest when physically exhausted, which is prone to slipping and falling, reducing the occurrence of safety accidents and the impact on the physical and mental safety of personnel.

[0035] It should be noted that in this text, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle steel tower ladder structure, comprising two side panels (1), characterized in that: A plurality of pedal rods (2) for climbing are equidistantly connected to the side surfaces opposite to the two side panels (1); a fixing box (3) is fixedly provided on one side surface of the two side panels (1); the inner side walls of the two fixing boxes (3) are rotatably connected to bidirectional threaded rods (4); the peripheral sides of the two bidirectional threaded rods (4) are symmetrical and threadedly sleeved with movable plates (5); a hollow groove (7) is provided on one side surface of the two fixing boxes (3); a limit block (6) is fixedly provided on the opposite side surface of the two movable plates (5) and on both sides of the hollow groove (7); a sliding rod (8) is fixedly provided on the inner side walls of the two hollow grooves (7); a sliding block (9) is slidably sleeved on the peripheral sides of the two sliding rods (8); a limit groove (10) engaged with the limit block (6) is provided on both sides of the two sliding blocks (9); a seat plate (11) for workers to rest is fixedly provided on one side surface of the opposite side surface of the two sliding blocks (9).

2. The angle steel tower ladder structure according to claim 1, characterized in that: A plurality of support frames (12) are fixedly arranged at equal intervals on one side of the two side panels (1), and a connecting frame (13) is connected to one side of each of the two support frames (12) opposite to the other side.

3. The angle steel tower ladder structure according to claim 2, characterized in that: The seat plate (11) is arranged between two support frames (12) and on one side of the connecting frame (13), and the free ends of the two sliding rods (8) are fixed on one side of the connecting frame (13).

4. The angle steel tower ladder structure according to claim 2, characterized in that: A transverse groove (14) for the seat plate (11) to pass through is transversely opened on one side of the connecting frame (13), and a plurality of clamping holes (15) are equidistantly arranged on the top surface of the connecting frame (13) and the top surface of the seat plate (11).

5. The angle steel tower ladder structure according to claim 4, characterized in that: The top surface of the connecting frame (13) is aligned with the top surface of the seat plate (11) and the inner cavity of two clamping holes (15) is clamped with a clamping rod (16).

6. The angle steel tower ladder structure according to claim 1, characterized in that: Limiting rods (17) are transversely fixed to the inner walls of both sides of the fixed box (3), and the two movable plates (5) are respectively slidably sleeved on the circumference of the two limiting rods (17).

7. The angle steel tower ladder structure according to claim 1, characterized in that: A plurality of hooks (18) for buckling safety belts are equidistantly mounted on opposite sides of the two side panels (1), and the plurality of hooks (18) and the plurality of pedal rods (2) are arranged alternately.

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