Hanging ladder for gas pipeline maintenance

Abstract

The utility model relates to a hanging ladder for gas pipeline maintenance, which comprises a base, a positioning component is mounted in the base, a first hanging ladder component is hinged to the upper end of the base, and the first hanging ladder component comprises a pair of supporting plates and a plurality of pedals rotatably connected between the pair of supporting plates. The upper end of the first hanging ladder assembly is connected with a plurality of second hanging ladder assemblies connected through connecting assemblies through connecting assemblies, the upper end of the second hanging ladder assembly at the uppermost end is connected with a third hanging ladder assembly through a connecting assembly, and a hook is installed at the upper end of the third hanging ladder assembly. The gas pipeline maintenance ladder has the advantages that the first hanging ladder assembly, the second hanging ladder assembly and the third hanging ladder assembly are connected and detached through the connecting assemblies, the overall length is adjusted according to the number of the connected second hanging ladder assemblies, and the gas pipeline maintenance ladder is suitable for maintenance of gas pipelines of different heights; through disassembly, carrying is convenient, and the needed storage space is small; the overall stability of the device is achieved through cooperation of the hook and the positioning assembly, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas construction, in particular to a hanging ladder for gas pipeline maintenance. Background Art

[0002] A gas pipeline is a facility that transports fuels such as natural gas or liquefied petroleum gas to cities or industrial enterprises through pipelines to supply energy. It is a channel connecting gas transmission stations and users, and is an important part of modern urban energy supply. For gas pipelines entering households, a gas pipeline maintenance ladder is required for installation, welding, and maintenance.

[0003] Existing gas pipeline maintenance ladders are usually of fixed length and cannot be used at different heights. In addition, the ladders are large in size, require a large storage space, are inconvenient to carry, and have low practicality. In addition, the lower end of the existing ladder is provided with a positioning component, which is unstable when used and poses a great safety hazard. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above problems and provide a hanging ladder for gas pipeline maintenance.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a hanging ladder for gas pipeline maintenance, including a base, a positioning assembly is installed in the base, a hanging ladder assembly 1 is hinged on the upper end of the base, the hanging ladder assembly 1 includes a pair of support plates and a plurality of pedals rotatably connected between the pair of support plates, the upper end of the hanging ladder assembly 1 is connected to a plurality of hanging ladder assemblies 2 connected to each other through the connecting assemblies through a connecting assembly, the upper end of the uppermost hanging ladder assembly 2 is connected to the hanging ladder assembly 3 through a connecting assembly, and a hook is installed on the upper end of the hanging ladder assembly 3.

[0006] Furthermore, the structures of the ladder assembly 1, the ladder assembly 2 and the ladder assembly 3 are the same. In the ladder assembly 1, a hinge shaft is horizontally passed through one side of the lower end of a pair of support plates, and positioning plates are fixed at both ends of the hinge shaft. A pair of hinge joints are provided on both sides of the upper end of the base and are located on the outside of the support plates. The hinge shaft passes through the hinge joint and is rotatably connected thereto.

[0007] Furthermore, in the second hanging ladder component, the connecting component includes a rectangular connecting tube and a rectangular connecting block respectively fixed on the upper and lower ends of the supporting plate, the rectangular connecting tube and the rectangular connecting block are slidably connected, a sliding groove is provided in the rectangular connecting block, a vertical plate and a sliding rod passing through the vertical plate horizontally and fixed at both ends are vertically provided in the center of the sliding groove, a second vertical plate through which the sliding rod passes is slidably connected in the sliding groove, a pressing block and a positioning block passing through the sliding groove are respectively fixed on the upper and lower outer sides of the second vertical plate, and a number of springs are fixed between the inner side of the second vertical plate and the vertical plate.

[0008] Furthermore, a chamfer is provided at the lower end of the positioning block, positioning holes for the positioning block to pass through are provided at both sides of the rectangular connecting tube, and the upper end of the rectangular connecting tube does not contact the pressing block.

[0009] Furthermore, a rectangular connecting tube is fixed to the upper end of the hanging ladder assembly, and a rectangular connecting block and its inner parts are fixed to the lower end of the hanging ladder assembly.

[0010] Furthermore, the positioning assembly includes a rectangular through groove that runs through both sides of the base, a threaded rod is connected to the central vertical bearing in the rectangular through groove, a motor connected to the threaded rod is installed on the upper end of the base, a plurality of vertical sliding rods are arranged around the threaded rod, a movable plate that moves up and down and is threadedly connected to the threaded rod and passed by the threaded rod and the vertical sliding rod is arranged in the rectangular through groove, sliding blocks are fixed on both sides of the movable plate, the sliding blocks are slidably connected to a positioning sleeve, rubber pads are fixed to the positioning sleeve and the lower end of the base, and a pull ring is provided on the outside of the positioning sleeve.

[0011] The advantages of the utility model compared with the prior art are:

[0012] 1. When the device is in use, the ladder assembly 1, the ladder assembly 2, and the ladder assembly 3 are connected together through the connecting assembly. By adjusting the number of the ladder assemblies 2 connected together, the overall length is adjusted, which is suitable for gas pipeline maintenance at different heights.

[0013] 2. When the device is not in use, the ladder assembly 1, several ladder assemblies 2, and ladder assembly 3 can be disassembled through the connecting assembly, which is easy to carry and requires little storage space.

[0014] 3. When using the device, make the lower end of the base contact the ground, adjust the angle of the upper total ladder assembly so that the upper hook is hung in a suitable position, activate the positioning assembly to position the lower end of the device, so as to achieve the overall stability of the device and facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model.

[0016] Figure 2 It is a structural diagram of a hanging ladder assembly of the present utility model.

[0017] Figure 3 It is a structural diagram of the positioning component of the utility model.

[0018] Figure 4 It is a structural diagram of a connection assembly of the present utility model.

[0019] As shown in the figure: base 1, positioning component 2, rectangular through groove 201, ladder component one 3, support plate 4, pedal 5, connecting component 6, ladder component two 7, ladder component three 8, hook 9, hinge shaft 10, positioning plate 11, hinge head 12, rectangular connecting tube 13, positioning hole 1301, rectangular connecting block 14, slide groove 1401, vertical plate 15, slide rod 16, vertical plate two 17, press block 18, positioning block 19, threaded rod 20, motor 21, vertical slide rod 22, moving plate 23, slider 24, positioning sleeve 25, rubber pad 26, pull ring 27, spring 28. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Combined with Figure 1 A hanging ladder for gas pipeline maintenance comprises a base 1, a positioning assembly 2 is installed in the base 1, a hanging ladder assembly 3 is hinged on the upper end of the base 1, the hanging ladder assembly 3 comprises a pair of support plates 4 and a plurality of pedals 5 rotatably connected between the pair of support plates 4, the upper end of the hanging ladder assembly 3 is connected to a plurality of hanging ladder assemblies 2 7 connected to each other through the connecting assembly 6 through a connecting assembly 6, the upper end of the uppermost hanging ladder assembly 2 7 is connected to the hanging ladder assembly 3 8 through the connecting assembly 6, and a hook 9 is installed on the upper end of the hanging ladder assembly 3 8.

[0022] When the device is implemented, the ladder component 1 3, the ladder component 2 7, and the ladder component 3 8 are connected together through the connecting component 6. By adjusting the number of the ladder components 2 7 that are specifically connected together, the overall length can be adjusted, which is suitable for the maintenance of gas pipelines at different heights; the lower end of the base 1 is made to contact the ground, and the angle of the total ladder component at its upper end is adjusted so that the hook 9 on it is hung in a suitable position, and the positioning component 2 is activated to position the lower end of the device, so as to achieve the stability of the entire device and facilitate use; and when not in use, the ladder component 1 3, several ladder components 2 7, and ladder components 3 8 can be disassembled through the connecting component 6, which is convenient for transportation and requires little storage space.

[0023] Combined with Figure 1-3 The structures of the hanging ladder assembly 1 3, the hanging ladder assembly 2 7, and the hanging ladder assembly 3 8 are the same. In the hanging ladder assembly 1 3, a pair of hinge shafts 10 are passed through one side of the lower end of the support plate 4, and positioning plates 11 are fixed at both ends of the hinge shaft 10. A pair of hinge joints 12 are provided on both sides of the upper end of the base 1 and are located outside the support plate 4. The hinge shaft 10 passes through the hinge joint 12 and is rotatably connected thereto. It is convenient to adjust the angle between the overall hanging ladder assembly and the base 1.

[0024] Combined with Figure 4 In the second ladder assembly 7, the connection assembly 6 includes a rectangular connection tube 13 and a rectangular connection block 14 respectively fixed at the upper and lower ends of the support plate 4, the rectangular connection tube 13 and the rectangular connection block 14 are slidably connected, a slide groove 1401 is provided in the rectangular connection block 14, a vertical plate 15 and a slide bar 16 passing through the vertical plate 15 horizontally and fixed at both ends are vertically provided in the center of the slide groove 1401, a second vertical plate 17 through which the slide bar 16 passes is slidably connected in the slide groove 1401, a pressing block 18 and a positioning block 19 passing through the slide groove 1401 are respectively fixed on the outer side of the second vertical plate 17, and a plurality of springs 28 are fixed between the inner side of the second vertical plate 17 and the vertical plate 15. The lower end of the positioning block 19 is provided with a chamfer, and positioning holes 1301 through which the positioning block 19 passes are provided on both sides of the rectangular connection tube 13, and the upper end of the rectangular connection tube 13 does not contact the pressing block 18.

[0025] When the connecting assembly 6 is in use, the rectangular connecting block 14 is inserted into the corresponding rectangular connecting tube 13, and the positioning block 19 moves inward through chamfering and finally rebounds through the spring 28, so that it enters the positioning hole 1301 to achieve installation; when disassembling, the pressing block 18 is pressed to make the vertical plate 17 drive the positioning block 19 to move inward, so that the positioning block 19 is disengaged from the positioning hole 1301, and the rectangular connecting block 14 can be pulled out of the rectangular connecting tube 13 to achieve disassembly.

[0026] Combined with Figure 1 The upper end of the ladder assembly 1 3 is fixed with a rectangular connecting tube 13, and the lower end of the ladder assembly 3 8 is fixed with a rectangular connecting block 14 and its internal parts. It is convenient to connect with the ladder assembly 2 7 through the corresponding part in the connecting assembly 6.

[0027] Combined with Figure 3 The positioning assembly 2 includes a rectangular through groove 201 that passes through both sides of the base 1, a threaded rod 20 is connected to the central vertical bearing in the rectangular through groove 201, a motor 21 connected to the threaded rod 20 is installed on the upper end of the base 1, and a plurality of vertical slide rods 22 are arranged around the threaded rod 20. A movable plate 23 that moves up and down and is threadedly connected to the threaded rod 20 and the vertical slide rod 22 is arranged in the rectangular through groove 201, and sliders 24 are fixed on both sides of the movable plate 23. The slider 24 is slidably connected to a positioning sleeve 25, and a rubber pad 26 is fixed to the positioning sleeve 25 and the lower end of the base 1, and a pull ring 27 is arranged on the outer side of the positioning sleeve 25.

[0028] When the positioning assembly 2 is in use, the positioning sleeve 25 is pulled out of the rectangular through groove 201 through the pull ring 27, so that the rubber pad 26 at the lower end of the positioning sleeve 25 is completely separated from the rectangular through groove 201, and the motor 21 is started to rotate the threaded rod 20, so that the movable plate 23 drives the positioning sleeve 25 to move downward under the guidance of the vertical slide rod 22, so that the rubber pad 26 at the lower end of the positioning sleeve 25 contacts the ground, and the lower end of the base 1 is also provided with a rubber pad 26 that contacts the ground, so as to achieve the stability of the lower end of the device and ensure the safety of the device.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A gas pipeline maintenance ladder, comprising a base (1), Features: A positioning assembly (2) is installed in the base (1); a ladder assembly (3) is hingedly connected to the upper end of the base (1); the ladder assembly (3) comprises a pair of support plates (4) and a plurality of pedals (5) rotatably connected between the pair of support plates (4); the upper end of the ladder assembly (3) is connected to a plurality of ladder assemblies (7) connected to each other via the connection assemblies (6) via a connection assembly (6); the upper end of the uppermost ladder assembly (7) is connected to a ladder assembly (8) via a connection assembly (6); and a hook (9) is installed at the upper end of the ladder assembly (8).

2. A gas pipeline maintenance ladder according to claim 1, Features: The hanging ladder assembly 1 (3), the hanging ladder assembly 2 (7), and the hanging ladder assembly 3 (8) have the same structure. In the hanging ladder assembly 1 (3), a hinge shaft (10) is horizontally passed through one side of the lower end of a pair of the support plates (4), and positioning plates (11) are fixed at both ends of the hinge shaft (10). A pair of hinge joints (12) located outside the support plates (4) are provided on both sides of the upper end of the base (1), and the hinge shaft (10) passes through the hinge joint (12) and is rotatably connected thereto.

3. A gas pipeline maintenance ladder according to claim 1, Features: In the second hanging ladder component (7), the connection component (6) comprises a rectangular connection tube (13) and a rectangular connection block (14) respectively fixed to the upper and lower ends of the support plate (4); the rectangular connection tube (13) and the rectangular connection block (14) are slidably connected; a slide groove (1401) is arranged in the rectangular connection block (14); a vertical plate (15) and a slide rod (16) passing through the vertical plate (15) horizontally and fixed at both ends are arranged vertically in the center of the slide groove (1401); a second vertical plate (17) passing through the slide rod (16) is slidably connected in the slide groove (1401); a pressing block (18) and a positioning block (19) passing through the slide groove (1401) are respectively fixed on the outer side of the second vertical plate (17) and are respectively fixed; a plurality of springs (28) are fixed between the inner side of the second vertical plate (17) and the vertical plate (15).

4. A gas pipeline maintenance ladder according to claim 3, Features: The lower end of the positioning block (19) is provided with a chamfer, and positioning holes (1301) through which the positioning block (19) passes are provided on both sides of the rectangular connecting tube (13), and the upper end of the rectangular connecting tube (13) does not contact the pressing block (18).

5. A gas pipeline maintenance ladder according to claim 3, Features: A rectangular connecting tube (13) is fixed to the upper end of the hanging ladder component 1 (3), and a rectangular connecting block (14) and its inner parts are fixed to the lower end of the hanging ladder component 3 (8).

6. A gas pipeline maintenance ladder according to claim 1, Features: The positioning assembly (2) comprises a rectangular through slot (201) which is provided in the base (1) and passes through the base (1) on both sides thereof, a threaded rod (20) is connected to a central vertical bearing in the rectangular through slot (201), a motor (21) connected to the threaded rod (20) is installed at the upper end of the base (1), a plurality of vertical slide rods (22) are provided around the threaded rod (20), a movable plate (23) which moves up and down and is threadedly connected to the threaded rod (20) and is passed through by the threaded rod (20) and the vertical slide rod (22) is provided in the rectangular through slot (201), sliders (24) are fixed on both sides of the movable plate (23), the sliders (24) are slidably connected to a positioning sleeve (25), a rubber pad (26) is fixed to the positioning sleeve (25) and the lower end of the base (1), and a pull ring (27) is provided on the outer side of the positioning sleeve (25).

Images