Crawling ladder device for municipal well maintenance

Abstract

The invention discloses a crawling ladder device for municipal well maintenance, and relates to the technical field of municipal engineering equipment.The crawling ladder device comprises a base and a crawling ladder body, the base and the crawling ladder body are detachably and fixedly connected, the size of the base is larger than that of a well mouth of a well, and the crawling ladder body is of a flexible structure. The base and the flexible crawling ladder body are detachably matched to form the crawling ladder device, compared with an existing rigid crawling ladder, when the crawling ladder device is in a non-working state, on one hand, the base and the flexible crawling ladder body are detachably and separately placed, accessories are convenient to replace, on the other hand, the flexible crawling ladder body can be rolled, the occupied space area is small, and the crawling ladder device is convenient to use. And a vehicle with a small compartment size can be used for conveying, and carrying and carrying are convenient.

Description

Technical Field

[0001] This invention relates to the field of municipal engineering equipment technology, and in particular to a ladder device for the maintenance of municipal shafts. Background Technology

[0002] Municipal shafts have a certain depth, and maintenance personnel typically use ladders to access the shafts for inspection and repair of pipelines and other facilities. Currently, some cities have installed fixed ladders on the inner walls of the shafts to facilitate maintenance work; however, installing fixed ladders requires installation on all shaft walls, leading to high construction costs. Figure 1 As shown, another option is to carry a rigid ladder. This ladder is placed inside the shaft requiring maintenance, allowing personnel to ascend and descend for work. This reduces construction costs compared to installing a fixed ladder on the shaft wall. However, this method also has drawbacks. Rigid ladders are relatively long, requiring significant space for transport and necessitating the use of large vehicles, making them inconvenient to carry. Furthermore, the stability of a rigid ladder within the shaft is poor; if placed too vertically, it can easily tip over while climbing, posing a safety hazard. Therefore, a technical solution is needed to address the aforementioned problems with existing rigid ladders. Summary of the Invention

[0003] The purpose of this invention is to provide a ladder device for municipal shaft maintenance in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] A ladder device for municipal shaft maintenance includes a base and a ladder body. The base and the ladder body are detachably fixedly connected. The size of the base is larger than the size of the shaft opening. The ladder body is a flexible structure. The base is placed on the ground at the shaft opening, and then the ladder body is fixedly connected to the base. The ladder body is then placed into the shaft for maintenance personnel to use.

[0006] Preferably, the base is annular and is injection molded from polycarbonate material.

[0007] Preferably, the inner diameter of the base is 1000-1200 mm.

[0008] Preferably, the top of the base is provided with an arc-shaped portion.

[0009] Preferably, a pre-embedded ring is fixedly provided on the top of the base, and there are two pre-embedded rings symmetrically distributed with the center of the base as the center of symmetry.

[0010] Preferably, the base is pre-embedded with reinforcing bars.

[0011] Preferably, an anti-slip pad is fixedly provided at the bottom of the base.

[0012] Preferably, the ladder body and the pre-embedded ring are detachably and fixedly connected by a locking buckle.

[0013] Preferably, the buckle is a carabiner.

[0014] Preferably, the ladder body includes two ropes and step bars, with the step bars fixedly installed at equal intervals on the two parallel ropes.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention adopts a base and a flexible ladder body that can be detachably combined to form a ladder device. Compared with the existing rigid ladder, when it is not in operation, on the one hand, the base and the flexible ladder body can be detachably placed separately, and it is convenient to replace the parts. On the other hand, the flexible ladder body can be rolled up, occupying a small space area, and can be transported by vehicles with small carriage size, and is convenient to handle and carry; (2) The base and the ladder body can be fixedly connected. When maintenance personnel climb up and down in the shaft through the ladder body, the ladder body will not tip over, and the safety factor is high; (3) The base is injection molded from polycarbonate material, which has the advantages of light weight and high strength. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an existing rigid ladder;

[0017] Figure 2 This is a first schematic diagram of the working state of the ladder climbing device of the present invention;

[0018] Figure 3 This is a second schematic diagram showing the working state of the ladder climbing device of the present invention;

[0019] Figure 4 This is a schematic diagram of the overall structure of the ladder climbing device of the present invention;

[0020] Figure 5 This is a cross-sectional view of the base of the present invention;

[0021] Figure 6 This is a schematic diagram of the ladder body of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Ground; 11. Shaft; 2. Climbing ladder device; 21. Base; 211. Embedded ring; 212. Reinforcing bar; 213. Arc section; 22. Climbing ladder body; 221. Rope; 222. Step bar; 23. Lock; 24. Anti-slip mat. Detailed Implementation

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] like Figure 2 and Figure 3 As shown, this invention provides a ladder device for municipal shaft maintenance. The ladder device 2 includes a base 21 and a ladder body 22, which are detachably and fixedly connected. The base 21 is larger than the opening size of the shaft 11. The ladder body 22 is a flexible structure and can be rolled up and stored when not in use. The base 21 is placed on the ground 1 at the opening of the shaft 11, then the ladder body 22 is fixedly connected to the base 21, and then the ladder body 22 is placed into the shaft 11 for maintenance personnel to use.

[0026] like Figure 2 and Figure 4 As shown, based on the above embodiment, the base 21 is annular and injection molded from polycarbonate material, giving it the advantages of light weight and high strength. Multiple reinforcing bars 212 are pre-embedded inside the base 21, increasing its structural strength. The inner diameter of the base 21 is 1000–1200 mm. Currently, the diameter of the wellhead of existing shafts 11 is mainly 600 mm, 700 mm, or 800 mm, thus the inner diameter of the base 21 can be compatible with the wellheads of all shafts 11, offering strong versatility. The top of the base 21 has a rounded portion 213, which makes the base 21 comfortable to hold and prevents injury to maintenance personnel.

[0027] like Figure 4 and Figure 5 As shown, furthermore, a pre-embedded ring 211 is fixedly installed on the top of the base 21. There are two pre-embedded rings 211, symmetrically distributed with the center of the base 21 as the center of symmetry. The ladder body 22 and the pre-embedded rings 211 are detachably and fixedly connected by a locking buckle 23. By fixing the ladder body 22 and the pre-embedded rings 211 together by the locking buckle 23, the ladder body 22 is fixed on the base 21, and disassembly is quick and convenient. Specifically, the locking buckle 23 is a carabiner made of aluminum alloy, which has the advantages of high load-bearing capacity and convenient disassembly.

[0028] like Figure 4 and Figure 5 As shown, an anti-slip pad 24 is further fixedly provided at the bottom of the base 21. The anti-slip pad 24 can be made of rubber material. The anti-slip pad 24 increases the friction between the base 21 and the ground 1 around the wellhead, thereby improving the stability of the base 21 during operation.

[0029] like Figure 4 and Figure 6As shown, based on the above embodiment, the ladder body 22 includes two ropes 221 and step bars 222. Step bars 222 are fixedly installed at equal intervals on the two parallel ropes 221. The ropes 221 can be used to tie the step bars 222 to them. The ropes 221 can be made of nylon, which has the advantages of being wear-resistant and economical. The ropes 221 can also be made of polyethylene, which has the advantages of high tensile strength and corrosion resistance. The ropes 221 of the ladder body 22 can be directly tied to the locking buckle 23, or a ring can be fixedly tied to the end of the rope 221, and then the ring is fixedly connected to the pre-embedded ring 211 through the locking buckle 23.

[0030] like Figures 2 to 6 As shown, when using it, first take the base 21 and the ladder body 22 from the vehicle to the location of the shaft 11 to be inspected. Then, place the base 21 on the ground 1 at the opening of the shaft 11, and try to make the center of the base 21 correspond to the center of the shaft 11. The anti-slip pad 24 at the bottom of the base 21 contacts the ground 1 at the opening to ensure the stability of the base 21. Then, fix the end of the ladder body 22 to the pre-embedded ring 211 on the base 21 through the buckle 23. Finally, unroll the ladder body 22 and place it into the interior of the shaft 11 for maintenance personnel to climb up and down.

[0031] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Those skilled in the art should 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, and all such changes should be covered within the protection scope of the present invention. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ladder device for the maintenance of municipal shafts, characterized in that: The ladder device includes a base and a ladder body. The base and the ladder body are detachably fixedly connected. The size of the base is larger than the size of the well opening of the shaft. The ladder body is a flexible structure. The base is placed on the ground at the well opening of the shaft. Then the ladder body is fixedly connected to the base. The ladder body is then placed into the shaft for maintenance personnel to use.

2. The ladder device for municipal shaft maintenance according to claim 1, characterized in that: The base is annular and is injection molded from polycarbonate material.

3. The ladder device for municipal shaft maintenance according to claim 2, characterized in that: The inner diameter of the base is 1000-1200 mm.

4. A ladder device for municipal shaft maintenance according to claim 2, characterized in that: The base has an arc-shaped section at its top.

5. A ladder device for municipal shaft maintenance according to claim 2, characterized in that: An embedded ring is fixedly installed on the top of the base. There are two embedded rings, which are symmetrically distributed with the center of the base as the center of symmetry.

6. A ladder device for municipal shaft maintenance according to claim 2, characterized in that: The base is pre-embedded with steel bars.

7. A ladder device for municipal shaft maintenance according to claim 2, characterized in that: An anti-slip pad is fixedly installed at the bottom of the base.

8. A ladder device for municipal shaft maintenance according to claim 5, characterized in that: The ladder body and the pre-embedded ring are detachably and fixedly connected by a locking buckle.

9. A ladder device for municipal shaft maintenance according to claim 8, characterized in that: The buckle is a carabiner.

10. A ladder device for municipal shaft maintenance according to claim 1, characterized in that: The ladder body includes two ropes and step bars, with the step bars fixedly installed at equal intervals on the two parallel ropes.

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