Foldable high pier column ladder stand with high stability

Abstract

The utility model relates to the technical field of crawling ladders, and discloses a foldable high pier column crawling ladder with high stability, which comprises a crawling ladder body arranged on the side surface of a high pier column body, the crawling ladder body comprises a plurality of rotary table plates, two staggered steps are arranged between the opposite side surfaces of every two staggered rotary table plates, a support column is arranged between every two vertical rotary table plates, and the rotary table plates are arranged on the support column. One side of each rotary table plate is provided with two installation openings matched with the ends of the steps, the two opposite sides of each installation opening are provided with a through hole and a threaded hole, the opposite side faces of the rotary table plates are provided with rotating shafts penetrating through the through holes and the ends of the steps, one ends of the rotating shafts are in threaded connection with the threaded holes, and the side faces of the rotating shafts are sleeved with polygonal limiting sleeves. Limiting grooves matched with the limiting sleeves are formed in the opposite side faces of the rotary table plate. According to the foldable ladder stand, the steps and the rotary table plate can be folded, the ladder stand body can be conveniently installed, the occupied space is reduced in a folding mode, and the ladder stand body can be conveniently transported.

Description

Technical Field

[0001] The utility model relates to the technical field of climbing ladders, in particular to a foldable high pier column climbing ladder with high stability. Background Technique

[0002] When a bridge is being built, multiple bridge piers are often built first. Bridge piers are generally cylindrical or square columns with a relatively high height. During the construction process, it is often necessary to set up a safety climbing ladder to facilitate workers to construct different parts of the pier column on the climbing ladder and monitor the construction situation. The existing climbing ladders are generally assembled climbing ladders.

[0003] In order to improve the stability of the pier column climbing ladder after installation, many improvements have been made to the high pier column climbing ladder in the prior art. For example, the patent with the publication number CN216950221U discloses a hoop wall-attached device for a high pier climbing ladder, which includes two hoops for connecting with the pier column, two groups of fixing parts for fixing the two hoops, and at least one group of connecting parts for connecting the hoop with the climbing ladder. One end of the connecting part is connected to the hoop, and the other end is connected to the climbing ladder. The hoop wall-attached device of the high pier climbing ladder of this utility model facilitates the close connection between the climbing ladder and the pier column through the hoop, reduces the influence of external factors on the wall-attached device, and thus improves the stability of the wall-attached device.

[0004] The above patent has obvious beneficial effects, but there are still the following deficiencies in actual operation:

[0005] In the above comparative document, the climbing ladder beside the high pier column is fixed through the hoop. However, in actual operation, due to the large volume of the climbing ladder and the fact that the climbing ladder can be reused, when the climbing ladder needs to be transported, it needs to be disassembled. And when all the parts are disassembled and then reinstalled, it is more troublesome. Therefore, it is urgent to improve the high pier column climbing ladder in this field to solve the defects of the prior art. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a foldable high pier column climbing ladder with high stability, which can fold the steps and turntable plates, facilitating the installation of the climbing ladder body, and reducing the occupied space through the folding method, facilitating the transportation of the climbing frame body.

[0007] To achieve the above object, the present utility model provides the following technical solution: A foldable high pier column ladder with high stability, comprising a ladder body installed on the side of the high pier column body. The ladder body includes a plurality of turntable plates. There are two staggered steps between the opposite sides of every two staggered turntable plates. A support column is provided between two vertically arranged turntable plates. Two installation openings adapted to the ends of the steps are formed on one side of each turntable plate. Through holes and threaded holes are formed on both opposite sides of each installation opening. Rotating shafts passing through the through holes and the ends of the steps are provided on the opposite sides of the turntable plates. One end of the rotating shaft is threadedly connected to the threaded hole. A polygonal limiting sleeve is sleeved on the side of the rotating shaft. Limiting grooves adapted to the limiting sleeve are formed on the opposite sides of the turntable plates. A limiting ring adapted to the limiting groove and the limiting sleeve is fixedly connected to the side of the rotating shaft. A first limiting nut is threadedly connected to the side of the rotating shaft. A plurality of tensioning units for fixing the ladder body are provided between the ladder body and the high pier column body.

[0008] Preferably, a first guardrail plate is fixedly installed between the sides of two adjacent support columns through fasteners. The first guardrail plate is clamped on the side of the turntable plate and is fixedly installed with the upper and lower support columns of the turntable plate through fasteners.

[0009] Preferably, a second guardrail plate is fixedly installed between the sides of the support columns on two adjacent turntable plates through fasteners. The second guardrail plate is adapted to the steps.

[0010] Preferably, the tensioning unit includes a plurality of fixed cross beams fixedly installed between the sides of two support columns. A plurality of tensioning ropes with both ends connected to the fixed cross beams are sleeved on the side of the high pier column body.

[0011] Preferably, both ends of the tensioning rope are fixedly connected with connecting blocks. Two symmetric fixed blocks are fixedly connected to the upper side of the fixed cross beam. One end of the connecting block is fixedly connected with a threaded column passing through the fixed block. A second limiting nut is threadedly connected to the side of the threaded column.

[0012] Preferably, an arc-shaped plate abutted against the side of the high pier column body is provided on the side of each fixed cross beam. An adjusting bolt with one end rotatably connected to the side of the arc-shaped plate is penetrated and threadedly connected on the fixed cross beam. A third limiting nut is threadedly connected to the side of the adjusting bolt. A limiting column penetrating the fixed cross beam is fixedly connected to the side of the arc-shaped plate.

[0013] Preferably, clamping interfaces adapted to the ends of the support columns are formed on the upper and lower surfaces of each turntable plate. A polygonal rotating block is fixedly connected to one end of the rotating shaft.

[0014] In view of the deficiencies of the prior art, the present utility model provides a foldable high pier column ladder with high stability, overcoming the deficiencies of the prior art. The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the step and the turntable plate are rotatably connected through a rotating shaft. During installation, the limiting sleeve can be sleeved on the limiting groove and the limiting ring, and the angle between the step and the turntable plate can be limited and fixed by cooperating with the first limiting nut. Several turntable plates and steps can be selected as a group independently. By removing the first limiting nut and taking out the limiting sleeve from the limiting groove, the step and the turntable plate can be folded, which is convenient for installing the ladder body and reduces the occupied space by folding, facilitating the transportation of the climbing frame body.

[0016] 2. In the present utility model, through the cooperation of the adjusting bolt and the second limiting nut, by rotating the second limiting nut or the adjusting bolt, the distance between the fixed cross beam and the high pier column body can be adjusted, and then the verticality of the overall climbing frame body can be adjusted to ensure the verticality of the climbing frame body after installation. When the verticality of the climbing frame body is qualified, tighten the second limiting nut and the third limiting nut, which can not only adjust the verticality of the climbing frame body but also improve the stability of the climbing frame body after installation.

[0017] 3. In the present utility model, both ends of the support column are located in the clamping interfaces, and the first guardrail plate is installed between the sides of multiple support columns through fastening bolts. The second guardrail plate is fixedly installed on the sides of multiple support columns through fastening bolts. A plurality of support columns form an integral body, improving the stability of the ladder body after installation.

[0018] Other features and advantages of the present utility model will be described in the subsequent description, and some of them will become obvious from the description or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide further understanding of the present utility model, and constitute a part of the description. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model.

[0020] Figure 1 It is a schematic structural diagram when the local part of the ladder body of the present utility model is installed on the side of the high pier column body;

[0021] Figure 2 It is a schematic structural diagram of the turntable plate and the step in the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the turntable plate in the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the tensioning unit in the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the connecting block in the present utility model;

[0025] Figure 6 This is a schematic structural diagram of the arc-shaped plate in the present utility model;

[0026] Figure 7 is Figure 3 The enlarged structural diagram at position A in

[0027] In the figure: 1, turntable plate; 2, high pier column body; 3, step; 4, support column; 5, installation opening; 6, through hole; 7, threaded hole; 8, rotating shaft; 9, limit sleeve; 10, limit groove; 11, first limit nut; 12, tensioning unit; 13, first guardrail plate; 14, second guardrail plate; 15, fixed cross beam; 16, tensioning rope; 17, connecting block; 18, fixed block; 19, threaded column; 20, second limit nut; 21, adjusting bolt; 22, arc-shaped plate; 23, third limit nut; 24, limit post; 25, clamping interface; 26, limit ring; 27, rotating block. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0029] Embodiment 1

[0030] Please refer to Figures 1 - 7 , a highly stable foldable high pier column climbing ladder, including a climbing ladder body installed on the side of the high pier column body 2. The climbing ladder body includes a plurality of turntable plates 1. There are two misaligned steps 3 between the opposite sides of every two misaligned turntable plates 1. There is a support column 4 between two vertically arranged turntable plates 1. Each turntable plate 1 is provided with two installation openings 5 adapted to the ends of the steps 3 on one side. Through holes 6 and threaded holes 7 are provided on both opposite sides of each installation opening 5. Rotating shafts 8 passing through the through holes 6 and the ends of the steps 3 are provided on the opposite sides of the turntable plate 1. One end of the rotating shaft 8 is threadedly connected to the threaded hole 7. A polygon-shaped limit sleeve 9 is sleeved on the side of the rotating shaft 8. Limit grooves 10 adapted to the limit sleeve 9 are provided on the opposite sides of the turntable plate 1. A limit ring 26 adapted to the limit groove 10 and the limit sleeve 9 is fixedly connected to the side of the rotating shaft 8. A first limit nut 11 is threadedly connected to the side of the rotating shaft 8. There are several groups of tensioning units 12 for fixing the climbing ladder body between the climbing ladder body and the high pier column body 2.

[0031] Specific implementation method in this embodiment: When it is necessary to install the ladder body on the side of the high pier column body 2, the ground at the position where the ladder body is to be installed on the side of the high pier column body 2 is hardened. The ladder body can be built with two turntable plates 1 and two steps 3 as a group. During the construction, both ends of the step 3 are respectively rotatably connected to the side of the rotating shaft 8, and the step 3 and the turntable plate 1 are rotated into a staircase state. When the turntable plate 1 rotates to a suitable position, the limit sleeve 9 is sleeved on the side of the limit ring 26, and the limit sleeve 9 is inserted into the limit groove 10. The first limit nut 11 is threadedly connected to the side of the rotating shaft 8, and the first limit nut 11 is tightened to limit and fix the position of the limit sleeve 9, thereby limiting the angle between the step 3 and the turntable plate 1, and the support column 4 is installed vertically with the turntable plate 1. After installing a group, the ladder body is tightened and fixed through the tensioning unit 12. When installing the upper turntable plate 1 and the step 3 again, align one end of the step 3 with the installation port 5 with the aid of a hoisting device, pass the rotating shaft 8 through the through hole 6 and the step 3 and threadedly connect it to the threaded hole 7, and cooperate with the hoisting device to adjust the angle between the step 3 and the turntable plate 1. Similarly, the limit sleeve 9 and the first limit nut 11 are used to limit and fix the positions of the step 3 and the turntable plate 1, and a group of tensioning units 12 are installed again to fix the ladder body. Install upward in sequence. During disassembly, several turntable plates 1 and steps 3 can be freely selected as a group. Remove the first limit nut 11 and take out the limit sleeve 9 from the limit groove 10, then the step 3 and the turntable plate 1 can be folded, which is convenient for installing the ladder body, and the space occupied by the folding method is not large, which is convenient for transporting the climbing frame body. At the same time, a tensioning unit 12 is provided between each layer of the ladder body and the high pier column body 2 to improve the stability of the ladder body after installation.

[0032] Embodiment Two

[0033] Please refer to Figure 1 、 Figure 2 and Figure 7 This embodiment includes the above-mentioned embodiment. Additionally, it further includes: A first guardrail plate 13 is fixedly installed between the sides of two adjacent support columns 4 through fasteners. The first guardrail plate 13 is clamped on the side of the turntable plate 1 and is fixedly installed with the upper and lower support columns 4 of the turntable plate 1 through fasteners. A second guardrail plate 14 is fixedly installed between the sides of the support columns 4 on two adjacent turntable plates 1 through fasteners. The second guardrail plate 14 is adapted to the step 3. A clamping interface 25 adapted to the end of the support column 4 is provided on the upper and lower surfaces of each turntable plate 1. One end of the rotating shaft 8 is fixedly connected with a polygonal rotating block 27.

[0034] Specific implementation manner in this embodiment: Both ends of the support column 4 are located within the card interfaces 25, and are installed between the sides of multiple support columns 4 in cooperation with the first guardrail plate 13 through fastening bolts. The second guardrail plate 14 is fixedly installed on the sides of multiple support columns 4 through fastening bolts. A number of support columns 4 form an integral body, improving the stability of the installed ladder body. Moreover, the first guardrail plate 13 and the second guardrail plate 14 play a protective role. The rotating block 27 facilitates installers to install or disassemble the rotating shaft 8 through tools such as electric wrenches.

[0035] Embodiment Three

[0036] Please refer to Figures 1 - 6 , this embodiment includes all the above embodiments. Among them, it further includes: The tensioning unit 12 includes a number of fixed crossbeams 15 fixedly installed between the sides of two support columns 4. A number of tensioning ropes 16 with both ends connected to the fixed crossbeams 15 are sleeved on the side of the high pier column body 2. Both ends of the tensioning ropes 16 are fixedly connected with connecting blocks 17. Two symmetric fixed blocks 18 are fixedly connected to the upper side of the fixed crossbeam 15. One end of the connecting block 17 is fixedly connected with a threaded column 19 passing through the fixed block 18. A second limit nut 20 is threadedly connected to the side of the threaded column 19. An arc-shaped plate 22 abutted against the side of the high pier column body 2 is provided on the side of each fixed crossbeam 15. An adjusting bolt 21 with one end rotatably connected to the side of the arc-shaped plate 22 is penetrated and threadedly connected through the fixed crossbeam 15. A third limit nut 23 is threadedly connected to the side of the adjusting bolt 21. A limit post 24 penetrating the fixed crossbeam 15 is fixedly connected to the side of the arc-shaped plate 22.

[0037] Specific implementation manner in this embodiment: Every time two turntable plates 1 and two steps 3 are installed, the fixed crossbeam 15 is fixedly installed between the sides of two support columns 4 through fastening bolts, and the tensioning ropes 16 are wound around the side of the high pier column body 2. The threaded column 19 is penetrated through the fixed block 18. The second limit nut 20 is threadedly connected to the side of the threaded column 19. The position of the arc-shaped plate 22 is adjusted by rotating the adjusting bolt 21, so that the arc-shaped plate 22 tightly abuts against the side of the high pier column body 2. By rotating the second limit nut 20 or the adjusting bolt 21, the distance between the fixed crossbeam 15 and the high pier column body 2 can be adjusted, and thus the verticality of the overall climbing frame body can be adjusted to ensure the verticality of the installed climbing frame body. When the verticality of the climbing frame body is qualified, tighten the second limit nut 20 and the third limit nut 23, which can not only adjust the verticality of the climbing frame body, but also improve the stability of the installed climbing frame body. When the arc-shaped plate 22 moves, the limit post 24 limits it.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A foldable high-pillar ladder with high stability, comprising a ladder body mounted on the side of a high-pillar body (2), characterized in that: The ladder body comprises a plurality of turntable plates (1), two staggered steps (3) are arranged between the opposite sides of each two staggered turntable plates (1), a support column (4) is arranged between the two turntable plates (1) vertically, one side of each turntable plate (1) is provided with two mounting openings (5) adapted to the ends of the steps (3), each mounting opening (5) is provided with a through hole (6) and a threaded hole (7) on opposite sides, opposite sides of the turntable plates (1) are provided with a rotating shaft (8) penetrating the through hole (6) and the ends of the steps (3), and the rotating shaft (8) is provided with a threaded hole (7) on opposite sides of the turntable plates (1). One end of the rotating shaft (8) is threadedly connected to the threaded hole (7), a polygonal limiting sleeve (9) is sleeved on the side of the rotating shaft (8), and the opposite side of the turntable plate (1) is provided with a limiting groove (10) adapted to the limiting sleeve (9), a limiting ring (26) adapted to the limiting groove (10) and the limiting sleeve (9) is fixedly connected to the side of the rotating shaft (8), a first limiting nut (11) is threadedly connected to the side of the rotating shaft (8), and a plurality of tensioning units (12) for fixing the ladder body are arranged between the ladder body and the high pier column body (2).

2. A foldable high-pillar ladder with high stability according to claim 1, characterized in that: A first guardrail plate (13) is fixedly installed between the sides of two adjacent support columns (4) by means of fasteners; the first guardrail plate (13) is clamped on the side of the turntable plate (1) and is fixedly installed with the upper and lower support columns (4) of the turntable plate (1) by means of fasteners.

3. A foldable high-pillar ladder with high stability according to claim 1, characterized in that: Second guardrail plates (14) are fixedly mounted on the side surfaces of the support columns (4) on two adjacent turntable plates (1) via fasteners, and the second guardrail plates (14) are adapted to the steps (3).

4. A foldable high-pillar ladder with high stability according to claim 1, characterized in that: The tensioning unit (12) comprises a plurality of fixed beams (15) fixedly installed between the sides of two support columns (4), and a plurality of tensioning ropes (16) with both ends connected to the fixed beams (15) are sleeved on the side of the high pier column body (2).

5. A foldable high-pillar ladder with high stability according to claim 4, characterized in that: Both ends of the tension rope (16) are fixedly connected to a connecting block (17); the upper side of the fixed crossbeam (15) is fixedly connected to two symmetrical fixing blocks (18); one end of the connecting block (17) is fixedly connected to a threaded column (19) penetrating the fixing block (18); and the side of the threaded column (19) is threadedly connected to a second limiting nut (20).

6. A foldable high-pillar ladder with high stability according to claim 4, characterized in that: Each of the fixed cross beams (15) is provided with a curved plate (22) on the side thereof which abuts against the side of the high pier column body (2); an adjusting bolt (21) is passed through and threadedly connected to the fixed cross beam (15), one end of which is rotatably connected to the side of the curved plate (22); a third limiting nut (23) is threadedly connected to the side of the adjusting bolt (21); and a limiting column (24) passing through the fixed cross beam (15) is fixedly connected to the side of the curved plate (22).

7. A foldable high-pillar ladder with high stability according to claim 1, characterized in that: The upper and lower surfaces of each of the turntable plates (1) are provided with a card interface (25) adapted to the end of the support column (4), and one end of the rotating shaft (8) is fixedly connected to a polygonal rotating block (27).

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