Assembly type crawling ladder

Abstract

The utility model provides an assembly type crawling ladder which comprises a crawling ladder body and a handrail, the handrail is arranged on the crawling ladder body in a penetrating mode, a positioning block is slidably clamped in the crawling ladder body, the positioning block is rotationally connected with an adjusting rod screwed in the crawling ladder body, and the positioning block is provided with a clamping strip correspondingly clamped with a clamping groove formed in the circumferential face of the handrail. And the positioning rods are correspondingly inserted into positioning holes formed in the peripheral surfaces of the handrails. The positioning block is pushed to slide towards the handrail by rotating the adjusting rod, the clamping strip and the clamping groove can be correspondingly clamped, the positioning rod and the positioning hole can be correspondingly inserted, and therefore axial and circumferential positioning of the handrail is achieved, and convenience of dismounting and mounting of the handrail is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to an assembled ladder. Background Art

[0002] At present, the traditional ladders in civil engineering projects are either pre-buried in advance, where the ladder is pre-buried on the main structure during the construction of the main structure and then cast after formwork is supported; or installed by planting reinforcement or nailing on the main structure afterwards. In order to improve the overall structural strength of the ladder, the two traditional ladder structures mostly weld handrail structures on the outside of the ladder body. However, the handrails of the traditional ladder structure are inconvenient to disassemble and assemble. For this reason, the inventor proposed an assembled ladder. Utility Model Content

[0003] The purpose of the present application is to provide an assembled ladder, which can improve the convenience of disassembly and assembly of handrails and has the advantage of easy operation.

[0004] The embodiment of the present application is implemented as follows:

[0005] The present application provides an assembled ladder, comprising a ladder body and a handrail, wherein the handrail is inserted into the ladder body, a positioning block is slidably engaged inside the ladder body, the positioning block is rotatably connected to an adjustment rod screwed inside the ladder body, and the positioning block has a clamping strip corresponding to a clamping groove formed on the peripheral surface of the handrail, and a positioning rod corresponding to a positioning hole formed on the peripheral surface of the handrail.

[0006] The present application pushes the positioning block to slide toward the armrest by rotating the adjustment rod, so that the card strip and the card slot are correspondingly engaged, and the positioning rod and the positioning hole are correspondingly inserted, thereby realizing axial and circumferential positioning of the armrest and improving the convenience of disassembly and assembly of the armrest.

[0007] In an optional embodiment, the positioning block is integrally constructed into a rectangular block having an inner cavity shape adapted to the outer shape of the ladder body.

[0008] In an optional embodiment, the positioning block has a curved docking surface that matches the shape of the handrail.

[0009] In an optional embodiment, the clamping strip is configured as an arc-shaped strip coaxially arranged with the butt joint surface.

[0010] In an optional embodiment, the clamping strips are distributed at intervals along the axial direction of the butt joint surface.

[0011] In an optional embodiment, the positioning rod is arranged as a whole along the sliding direction of the positioning block.

[0012] In an optional embodiment, the positioning rods are arranged along the radial direction of the abutment surface.

[0013] In an optional embodiment, a mounting plate for accommodating the adjusting rod is fixedly connected in the inner cavity.

[0014] In an optional embodiment, the adjusting rod is arranged as a whole along the sliding direction of the positioning block.

[0015] In an optional embodiment, a knob is fixedly connected to the outer end of the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of an assembled ladder according to an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of installing a positioning block according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a positioning block according to an embodiment of the present application;

[0020] Reference numerals:

[0021] 10. Ladder body;

[0022] 20. Handrails;

[0023] 30. Positioning block;

[0024] 40. Adjustment rod;

[0025] 11. Inner cavity;

[0026] 12. Mounting plate;

[0027] 21. Card slot;

[0028] 22. Positioning hole;

[0029] 31. Card strip;

[0030] 32. Positioning rod;

[0031] 33. Butt joint;

[0032] 41. Knob. DETAILED DESCRIPTION

[0033] Example 1

[0034] See also Figure 1-Figure 3 This embodiment provides an assembled ladder to solve the problem that the handrails of the existing ladder are inconvenient to disassemble and assemble.

[0035] In this embodiment, the assembled ladder includes a ladder body 10 and a handrail 20, wherein the handrail 20 is inserted into the ladder body 10, and a positioning block 30 is slidably engaged inside the ladder body 10. The positioning block 30 is rotatably connected to an adjustment rod 40 screwed inside the ladder body 10. The positioning block 30 has a clamping strip 31 that is correspondingly engaged with a clamping groove 21 formed on the peripheral surface of the handrail 20, and a positioning rod 32 that is correspondingly plugged into a positioning hole 22 formed on the peripheral surface of the handrail 20.

[0036] In this embodiment, the adjusting rod 40 is rotated to push the positioning block 30 to slide toward the armrest 20, so that the clamping strip 31 is correspondingly engaged with the clamping slot 21, and the positioning rod 32 is correspondingly plugged into the positioning hole 22, thereby realizing axial and circumferential positioning of the armrest 20 and improving the convenience of disassembly and assembly of the armrest.

[0037] It should be noted that the handrail 20 is constructed as a whole in a circular tube shape. The handrail 20 passes through a plurality of ladder bodies 10 arranged at intervals in sequence. The slot 21 is an annular groove formed on the circumferential surface of the handrail 20, and the slot 21 and the handrail 20 are coaxially arranged. The positioning hole 22 is a through hole formed on the side wall of the handrail 20, and the positioning hole 22 is arranged along the radial direction of the handrail 20 as a whole. As an example, two slots 21 are arranged at intervals along the axial direction of the handrail 20, and the positioning hole 22 is arranged between the two slots 21.

[0038] In addition, the ladder body 10 has an inner cavity 11 with a rectangular cross section, the handrail 20 vertically passes through the inner cavity 11, and the extension direction of the inner cavity 11 is arranged perpendicularly to the handrail 20. The positioning block 30 is constructed as a rectangular block with an outer shape adapted to the inner cavity 11. The positioning block 30 is slidably connected to the inner cavity 11. The side wall of the positioning block 30 facing the handrail 20 is provided with an arc-shaped docking surface 33, and the docking surface 33 is adapted to the outer shape of the handrail 20. The axis of the docking surface 33 is arranged parallel to the axis of the handrail 20. The clamping strip 31 and the positioning rod 32 are both arranged on the docking surface 33, and the clamping strip 31 is constructed as an arc-shaped docking surface 33 coaxially arranged with the docking surface 33. The armrest 20 is in the shape of a strip, and the strips 31 are distributed at intervals along the axial direction of the docking surface 33. The strips 31 are adapted to the shapes of the slots 21, and the two maintain a one-to-one correspondence. The positioning rods 32 are arranged along the sliding direction of the positioning block 30 as a whole, and the positioning rods 32 are arranged along the radial direction of the docking surface 33. The positioning rods 32 are arranged correspondingly to the positioning holes 22. When the docking surface 33 fits the outer wall of the armrest 20, the strips 31 are correspondingly engaged with the slots 21, and the positioning rods 32 are correspondingly plugged into the positioning holes 22. The clamping cooperation between the strips 31 and the slots 21 can realize the axial positioning of the armrest 20, and the plug-in cooperation between the positioning rods 32 and the positioning holes 22 can realize the circumferential positioning of the armrest 20.

[0039] In addition, a mounting plate 12 for accommodating an adjusting rod 40 is fixedly connected in the inner cavity 11. The adjusting rod 40 is arranged as a whole along the sliding direction of the positioning block 30. The adjusting rod 40 is passed through the mounting plate 12 and is threadedly connected to the mounting plate 12. The inner end of the adjusting rod 40 is rotatably connected to the outer side wall of the positioning block 30. For ease of operation, a knob 41 is fixedly connected to the outer end of the adjusting rod 40. The knob 41 can make the rotation of the adjusting rod 40 more convenient. When the adjusting rod 40 is screwed inward, the positioning block 30 can be pushed to slide toward the armrest 20.

[0040] In the present application, the adjusting rod 40 drives the positioning block 30 to slide in the inner cavity toward or away from the handrail 20, thereby locking or unlocking the handrail 20, making it easier to disassemble and assemble the handrail 20 on the ladder body 10.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An assembled ladder, comprising a ladder body and a handrail, characterized in that: The handrail is inserted into the ladder body, a positioning block is slidably engaged inside the ladder body, the positioning block is rotatably connected to an adjustment rod screwed inside the ladder body, the positioning block has a clamping strip corresponding to the clamping groove formed on the peripheral surface of the handrail, and a positioning rod corresponding to the positioning hole formed on the peripheral surface of the handrail.

2. The assembled ladder according to claim 1, characterized in that: The positioning block is integrally constructed into a rectangular block shape that is adapted to the inner cavity shape of the ladder body.

3. The assembled ladder according to claim 2, characterized in that: The positioning block has an arc-shaped butt joint surface adapted to the outer shape of the handrail.

4. The assembled ladder according to claim 3, characterized in that: The clamping strip is configured as an arc-shaped strip coaxially arranged with the butt joint surface.

5. The assembled ladder according to claim 4, characterized in that: The clamping strips are distributed at intervals along the axial direction of the butt joint surface.

6. The assembled ladder according to claim 5, characterized in that: The positioning rod is arranged as a whole along the sliding direction of the positioning block.

7. The assembled ladder according to claim 6, characterized in that: The positioning rods are arranged along the radial direction of the butt joint surface.

8. The assembled ladder according to claim 7, characterized in that: A mounting plate for accommodating the adjusting rod is fixedly connected in the inner cavity.

9. The assembled ladder according to claim 8, characterized in that: The adjusting rod is arranged as a whole along the sliding direction of the positioning block.

10. The assembled ladder according to claim 9, characterized in that: The outer end of the adjusting rod is fixedly connected with a knob.

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