Climbing ladder for climbing frame

The detachable and assembleable ladder design solves the problems of low practicality and large space occupation caused by fixed ladder length, and achieves adjustable length and improved protection effect, thus ensuring the safety of workers.

CN224149477UActive Publication Date: 2026-04-21DONGGUAN SANSIDE STORAGE EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN SANSIDE STORAGE EQUIP CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing ladders have a fixed length, resulting in low practicality, large space occupation, inconvenience for transportation, and lack of protective functions, which cannot guarantee the safety of workers.

Method used

The ladder features a detachable and assembleable design, with multiple ladder components connected by first and second connecting assemblies, and is equipped with protective components to enhance safety.

Benefits of technology

The adjustable ladder length reduces space occupation, facilitates transportation, and improves protection, ensuring the safety of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crawling ladder for a climbing frame, which comprises a crawling ladder assembly, a first connecting assembly and a second connecting assembly which are detachably mounted on the crawling ladder assembly, a protection assembly which is slidably mounted on the crawling ladder assembly, and a first fixing assembly and a second fixing assembly which are detachably mounted on the crawling ladder assembly, the number of the crawling ladder assemblies, the number of the first connecting assemblies and the number of the second connecting assemblies are all multiple, every two adjacent crawling ladder assemblies are connected through the first connecting assemblies and the second connecting assemblies, and each crawling ladder assembly comprises a first crawling pipe, a second crawling pipe and a crawling rod. One end of each climbing rod is detachably installed on the first climbing pipe through the first fixing assembly, the other end of each climbing rod is detachably installed on the second climbing pipe through the second fixing assembly, and the multiple climbing rods are arranged at intervals; the device can be assembled in required length according to requirements, is high in practicability, is convenient to disassemble and recycle, reduces the space occupancy rate, and is convenient to transport.
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Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and more particularly to a ladder for climbing frames. Background Technology

[0002] Construction engineering refers to the construction of various types of buildings and their ancillary facilities. It encompasses a wide range, including industrial, agricultural, and civil buildings, and is characterized by high mobility, high labor intensity, significant influence from the environment and climate, and complex and variable products. During construction, platforms need to be erected around the building's exterior walls. Climbing scaffolds are typically used to assist workers in construction operations and material transportation. Climbing scaffolds are often used in conjunction with ladders. Existing ladders are mostly one-piece designs, resulting in fixed lengths, low practicality, and significant space occupation after recycling. Furthermore, their large size makes them inconvenient to transport, and the lack of safety features compromises worker safety. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a climbing ladder for scaffolding. Multiple climbing ladder components are detachably assembled via a first connecting component and a second connecting component, allowing for assembly to the required length as needed. This enhances practicality. During recycling, the ladder can be disassembled into individual components, reducing space occupancy and facilitating transportation. Furthermore, the included protective components improve the protective effect of the climbing ladder components, ensuring the safety of workers.

[0004] To achieve the above objectives, the present invention provides a climbing ladder for a climbing scaffold, comprising a climbing ladder assembly, a first connecting assembly and a second connecting assembly detachably mounted on the climbing ladder assembly, a protective assembly slidably mounted on the climbing ladder assembly, and a first fixing assembly and a second fixing assembly detachably mounted on the climbing ladder assembly. Multiple climbing ladder assemblies, the first connecting assembly, and the second connecting assembly are provided. Adjacent climbing ladder assemblies are connected via the first connecting assembly and the second connecting assembly. Each climbing ladder assembly includes a first climbing pipe, a second climbing pipe, and climbing rods. One end of each climbing rod is detachably mounted on the first climbing pipe via the first fixing assembly, and the other end of each climbing rod is detachably mounted on the second climbing pipe via the second fixing assembly. Multiple climbing rods are provided and spaced apart.

[0005] As a preferred embodiment, the first climbing pipe is provided with a plurality of spaced first mounting slots, the second climbing pipe is provided with a plurality of spaced second mounting slots, one end of the climbing rod passes through the first mounting slot, and the other end of the climbing rod passes through the second mounting slot.

[0006] As a preferred embodiment, the first fixing component includes a first fixing plate and a first fixing screw. The climbing rod is provided with a first fixing groove, the first fixing plate is provided with a through first fixing external thread groove, the first climbing tube is provided with a through first fixing internal thread groove, the first fixing plate passes through the first fixing groove, the first fixing plate is located outside the first climbing tube, one end of the first fixing screw passes through the first fixing external thread groove and is installed in the first fixing internal thread groove, and there are multiple first fixing screws, the first fixing external thread groove and the first fixing internal thread groove, which are matched with each other.

[0007] As a preferred embodiment, the second fixing component includes a second fixing plate and a second fixing screw. The climbing rod is provided with a second fixing groove, the second fixing plate is provided with a through second fixing external thread groove, the second climbing tube is provided with a through second fixing internal thread groove, the second fixing plate passes through the second fixing groove, the second fixing plate is located outside the second climbing tube, one end of the second fixing screw passes through the second fixing external thread groove and is installed in the second fixing internal thread groove, and there are multiple second fixing screws, second fixing external thread grooves and second fixing internal thread grooves, which are matched with each other.

[0008] As a preferred embodiment, the first connecting assembly includes a first connector, a first upper mounting tube and a first lower mounting tube integrally formed on the first connector, and a first lower connecting screw and a first upper connecting screw. The first upper mounting tube and the first lower mounting tube are detachably placed in the first climbing tube. The first climbing tube has a through first lower connecting external threaded groove and a first upper connecting external threaded groove. The first lower mounting tube has a first lower connecting internal threaded groove, and the first upper mounting tube has a first upper connecting internal threaded groove. The first lower connecting external threaded groove and the first lower connecting internal threaded groove are matched. The first upper connecting external threaded groove and the first upper connecting internal threaded groove are matched. The first lower connecting screw is installed in the first lower connecting external threaded groove and the first lower connecting internal threaded groove, and the first upper connecting screw is installed in the first upper connecting external threaded groove and the first upper connecting internal threaded groove.

[0009] As a preferred embodiment, the second connecting assembly includes a second connector, a second upper mounting tube and a second lower mounting tube integrally formed on the second connector, a second lower connecting screw and a second upper connecting screw. The second upper mounting tube and the second lower mounting tube are detachably placed in the second climbing tube. The second climbing tube has a through second lower connecting external threaded groove and a second upper connecting external threaded groove. The second lower mounting tube has a second lower connecting internal threaded groove, and the second upper mounting tube has a second upper connecting internal threaded groove. The second lower connecting external threaded groove and the second lower connecting internal threaded groove are matched. The second upper connecting external threaded groove and the second upper connecting internal threaded groove are matched. The second lower connecting screw is installed in the second lower connecting external threaded groove and the second lower connecting internal threaded groove, and the second upper connecting screw is installed in the second upper connecting external threaded groove and the second upper connecting internal threaded groove.

[0010] As a preferred embodiment, the protective component includes an elastic protective belt, a first slider and a second slider mounted on the elastic protective belt, and a buckle mounted on the elastic protective belt. The first climbing pipe has a first sliding portion, the second climbing pipe has a second sliding portion, the first sliding portion is provided with a first sliding groove, the second sliding portion is provided with a second sliding groove, the first slider is slidably mounted in the first sliding groove, and the second slider is slidably mounted in the second sliding groove.

[0011] As a preferred embodiment, the first connector has a left connecting slide portion and the second connector has a right connecting slide portion. The left connecting slide portion is provided with a left connecting slide groove and the right connecting slide portion is provided with a right connecting slide groove. The left connecting slide groove is matched with the first slide groove and the right connecting slide groove is matched with the second slide groove.

[0012] As a preferred embodiment, the first climbing pipe has a first mounting plate, the second climbing pipe has a second mounting plate, and there are multiple first mounting plates and second mounting plates arranged at intervals.

[0013] The advantages of this utility model are as follows: multiple ladder components can be detachably assembled through the first connecting component and the second connecting component, so that the required length can be assembled according to the needs, which is highly practical. When recycling, it can be disassembled into individual ladder components for recycling, reducing space occupation and facilitating transportation. In addition, the protective components can improve the protective effect of the ladder components and ensure the safety of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a climbing ladder for climbing scaffolds according to this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of a climbing ladder component in a climbing scaffold.

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the first connecting component in a climbing ladder for a climbing scaffold.

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the second connecting component in a climbing ladder for a climbing scaffold.

[0018] Figure 5 for Figure 1 A schematic diagram of the structure of a protective component in a climbing ladder for a climbing scaffold.

[0019] Figure 6 for Figure 1 A schematic diagram of the structure of some components in a climbing ladder for a climbing scaffold.

[0020] Reference numerals: 100, Climbing ladder assembly; 110, First climbing tube; 111, First mounting slot; 112, First fixing internal threaded groove; 113, First lower connecting external threaded groove; 114, First upper connecting external threaded groove; 115, First sliding part; 116, First sliding groove; 117, First mounting plate; 120, Second climbing tube; 121, Second mounting slot; 122, Second fixing internal threaded groove; 123, Second lower connecting external threaded groove; 124, Second upper connecting external threaded groove; 125, Second sliding part; 126, Second sliding groove; 127, Second mounting plate; 130, Climbing rod; 131, First fixing slot; 132, Second fixing slot; 200, First connecting assembly; 210, First connector; 211, Left connecting sliding part; 212, Left connecting sliding groove; 220, First upper mounting tube; 221, First upper connecting internal threaded groove; 230, First lower... Mounting tube; 231, First lower connecting inner thread groove; 240, First lower connecting screw; 250, First upper connecting screw; 300, Second connecting assembly; 310, Second connector; 311, Right connecting slide; 312, Right connecting slide groove; 320, Second upper mounting tube; 321, Second upper connecting inner thread groove; 330, Second lower mounting tube; 331, Second lower connecting inner thread groove; 340, Second lower connecting screw; 350, Second upper connecting screw; 400, Protective assembly; 410, Elastic protective band; 420, First slider; 430, Second slider; 440, Buckle; 500, First fixing assembly; 510, First fixing plate; 511, First fixing outer thread groove; 520, First fixing screw; 600, Second fixing assembly; 610, Second fixing plate; 611, Second fixing outer thread groove; 620, Second fixing screw. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1 to 6As shown, this utility model provides a climbing ladder for a climbing frame, including a climbing ladder assembly 100, a first connecting assembly 200 and a second connecting assembly 300 detachably installed on the climbing ladder assembly 100, a protective assembly 400 slidably installed on the climbing ladder assembly 100, and a first fixing assembly 500 and a second fixing assembly 600 detachably installed on the climbing ladder assembly 100. There are multiple climbing ladder assemblies 100, first connecting assemblies 200, and second connecting assemblies 300. Adjacent climbing ladder assemblies 100 are connected through the first connecting assembly 200 and the second connecting assembly 300. The climbing ladder assembly 100 includes a first climbing pipe 110, a second climbing pipe 120, and climbing rods 13. One end of the climbing pole 130 is detachably installed on the first climbing pipe 110 via the first fixing component 500, and the other end of the climbing pole 130 is detachably installed on the second climbing pipe 120 via the second fixing component 600. There are multiple climbing poles 130 arranged at intervals. Multiple climbing ladder components 100 are detachably assembled via the first connecting component 200 and the second connecting component 300, so that the required length can be assembled according to the needs, which is highly practical. When recycling, they can be disassembled into individual climbing ladder components 100 for recycling, reducing space occupation and facilitating transportation. The protective component 400 can improve the protective effect of the climbing ladder components 100 and ensure the safety of the staff.

[0025] The first climbing pipe 110 is provided with a plurality of spaced-apart first mounting slots 111, and the second climbing pipe 120 is provided with a plurality of spaced-apart second mounting slots 121. One end of the climbing rod 130 passes through the first mounting slot 111, and the other end of the climbing rod 130 passes through the second mounting slot 121. In this embodiment, the climbing rod 130 has a left stop and a right stop. The left stop and the right stop can respectively stop the first climbing pipe 110 and the second climbing pipe 120, ensuring the distance between the first climbing pipe 110 and the second climbing pipe 120. The surface of the climbing rod 130 also has a friction part, which can increase the friction of the climbing rod 130 and effectively prevent the worker from slipping when climbing.

[0026] The first fixing component 500 includes a first fixing plate 510 and a first fixing screw 520. The climbing rod 130 is provided with a first fixing groove 131, the first fixing plate 510 is provided with a through first fixing external thread groove 511, and the first climbing tube 110 is provided with a through first fixing internal thread groove 112. The first fixing plate 510 passes through the first fixing groove 131 and is located outside the first climbing tube 110. One end of the first fixing screw 520 passes through the first fixing external thread groove 511 and is installed in the first fixing internal thread groove 112. There are multiple first fixing screws 520, first fixing external thread grooves 511, and first fixing internal thread grooves 112, and they are matched with each other. During assembly, after one end of the climbing rod 130 passes through the first mounting groove 111, the first fixing plate 510 is passed through the first fixing groove 131, and then one end of the first fixing screw 520 is passed through the first fixing external thread groove 511 and installed in the first fixing internal thread groove 112, thereby completing the assembly and fixing of one end of the climbing rod 130.

[0027] The second fixing component 600 includes a second fixing plate 610 and a second fixing screw 620. The climbing rod 130 is provided with a second fixing groove 132. The second fixing plate 610 is provided with a through second fixing external thread groove 611. The second climbing tube 120 is provided with a through second fixing internal thread groove 122. The second fixing plate 610 passes through the second fixing groove 132 and is located outside the second climbing tube 120. One end of the second fixing screw 620 passes through the second fixing external thread groove 611 and is installed in the second fixing internal thread groove 122. There are multiple second fixing screws 620, second fixing external thread grooves 611, and second fixing internal thread grooves 122, and they are matched with each other. During assembly, after one end of the climbing rod 130 passes through the second mounting groove 121, the second fixing plate 610 is passed through the second fixing groove 132, and then one end of the second fixing screw 620 is passed through the second fixing external thread groove 611 and installed in the second fixing internal thread groove 122, thereby completing the assembly and fixing of the other end of the climbing rod 130.

[0028] The first connecting assembly 200 includes a first connector 210, a first upper mounting tube 220 and a first lower mounting tube 230 integrally formed on the first connector 210, and a first lower connecting screw 240 and a first upper connecting screw 250. The first upper mounting tube 220 and the first lower mounting tube 230 are detachably placed in the first climbing tube 110. The first climbing tube 110 is provided with a through first lower connecting external threaded groove 113 and a first upper connecting external threaded groove 114. The first lower mounting tube 230 is provided with a first... The lower connecting internal thread groove 231, the first upper mounting tube 220 is provided with the first upper connecting internal thread groove 221, the first lower connecting external thread groove 113 and the first lower connecting internal thread groove 231 are matched, the first upper connecting external thread groove 114 and the first upper connecting internal thread groove 221 are matched, the first lower connecting screw 240 is installed in the first lower connecting external thread groove 113 and the first lower connecting internal thread groove 231, and the first upper connecting screw 250 is installed in the first upper connecting external thread groove 114 and the first upper connecting internal thread groove 221.

[0029] The second connecting assembly 300 includes a second connector 310, a second upper mounting tube 320 and a second lower mounting tube 330 integrally formed in the second connector 310, and a second lower connecting screw 340 and a second upper connecting screw 350. The second upper mounting tube 320 and the second lower mounting tube 330 are detachably placed in the second climbing tube 120. The second climbing tube 120 is provided with a through second lower connecting external thread groove 123 and a second upper connecting external thread groove 124. The second lower mounting tube 330 is provided with a second lower connecting internal thread groove 331. The second upper mounting tube 320 is provided with a second upper connecting internal thread groove 321. The second lower connecting external thread groove 123 and the second lower connecting internal thread groove 331 are matched. The second upper connecting external thread groove 124 and the second upper connecting internal thread groove 321 are matched. The second lower connecting screw 340 is installed in the second lower connecting external thread groove 123 and the second lower connecting internal thread groove 331. The second upper connecting screw 350 is installed in the second upper connecting external thread groove 124 and the second upper connecting internal thread groove 321. When the length of the ladder needs to be increased, the adjacent ladder assemblies 100 need to be assembled using the first connecting assembly 200 and the second connecting assembly 300. During assembly, the first lower mounting tube 230 is placed in the lower first climbing tube 110, and the second lower mounting tube 330 is placed in the lower second climbing tube 120. After placement, the lower half is completed by installing the first lower connecting screw 240 into the first lower connecting external thread groove 113 and the first lower connecting internal thread groove 231, and the second lower connecting screw 340 into the second lower connecting external thread groove 123 and the second lower connecting internal thread groove 331. The components are fixedly assembled, and then the first upper mounting tube 220 is placed in the first upper climbing tube 110 above, and the second upper mounting tube 320 is placed in the second upper climbing tube 120 above. After placement, the first upper connecting screw 250 is installed in the first upper connecting external thread groove 114 and the first upper connecting internal thread groove 221, and the second upper connecting screw 350 is installed in the second upper connecting external thread groove 124 and the second upper connecting internal thread groove 321. This completes the overall assembly. If the length needs to be increased, the assembly can be continued according to the above operation. The assembly is convenient, the length can be adjusted according to the needs, and it is highly practical.

[0030] The protective component 400 includes an elastic protective belt 410, a first slider 420 and a second slider 430 mounted on the elastic protective belt 410, and a buckle 440 mounted on the elastic protective belt 410. The first climbing pipe 110 has a first sliding part 115, and the second climbing pipe 120 has a second sliding part 125. The first sliding part 115 is provided with a first sliding groove 116, and the second sliding part 125 is provided with a second sliding groove 126. The first slider 420 is slidably mounted on the first sliding groove 116, and the second slider 430 is slidably mounted on the second sliding groove 126. When workers climb the ladder, the first slider 420 is slidably installed in the first slide groove 116, and the second slider 430 is slidably installed in the second slide groove 126. Then, one end of the elastic protective belt 410 is removed from the buckle 440, the elastic protective belt 410 is opened, and the elastic protective belt 410 is wrapped around the worker's waist. Then, one end of the elastic protective belt 410 is installed in the buckle 440. During the worker's ascent, the elastic protective belt 410 can move with the worker and protect the worker.

[0031] The first connector 210 has a left connecting slide 211, and the second connector 310 has a right connecting slide 311. The left connecting slide 211 is provided with a left connecting slide groove 212, and the right connecting slide 311 is provided with a right connecting slide groove 312. The left connecting slide groove 212 is matched with the first slide groove 116, and the right connecting slide groove 312 is matched with the second slide groove 126.

[0032] The first climbing pipe 110 has a first mounting plate 117, and the second climbing pipe 120 has a second mounting plate 127. Multiple first mounting plates 117 and second mounting plates 127 are provided and spaced apart. In this embodiment, the first mounting plate 117 has multiple spaced first mounting screw holes, and the second mounting plate 127 has multiple spaced second mounting screw holes. The climbing ladder assembly 100 can be mounted onto the climbing frame via the first mounting plates 117 and the second mounting plates 127.

[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A ladder for a climbing frame, characterized in that The system includes a ladder assembly, a first connecting component and a second connecting component detachably mounted on the ladder assembly, a protective component slidably mounted on the ladder assembly, and a first fixing component and a second fixing component detachably mounted on the ladder assembly. Multiple ladder assemblies, the first connecting component, and the second connecting component are included. Adjacent ladder assemblies are connected via the first connecting component and the second connecting component. Each ladder assembly includes a first climbing pipe, a second climbing pipe, and climbing rods. One end of each climbing rod is detachably mounted on the first climbing pipe via the first fixing component, and the other end of each climbing rod is detachably mounted on the second climbing pipe via the second fixing component. Multiple climbing rods are provided and spaced apart.

2. The crawling ladder for crawling scaffold according to claim 1, characterized in that: The first climbing pipe is provided with a plurality of spaced first mounting slots, the second climbing pipe is provided with a plurality of spaced second mounting slots, one end of the climbing rod passes through the first mounting slot, and the other end of the climbing rod passes through the second mounting slot.

3. The crawling ladder according to claim 2, wherein: The first fixing component includes a first fixing plate and a first fixing screw. The climbing rod is provided with a first fixing groove. The first fixing plate is provided with a through first fixing external thread groove. The first climbing tube is provided with a through first fixing internal thread groove. The first fixing plate passes through the first fixing groove and is located outside the first climbing tube. One end of the first fixing screw passes through the first fixing external thread groove and is installed in the first fixing internal thread groove. There are multiple first fixing screws, the first fixing external thread groove, and the first fixing internal thread groove, and they are matched with each other.

4. The crawling ladder according to claim 2, wherein: The second fixing component includes a second fixing plate and a second fixing screw. The climbing rod is provided with a second fixing groove. The second fixing plate is provided with a through second fixing external thread groove. The second climbing tube is provided with a through second fixing internal thread groove. The second fixing plate passes through the second fixing groove and is located outside the second climbing tube. One end of the second fixing screw passes through the second fixing external thread groove and is installed in the second fixing internal thread groove. There are multiple second fixing screws, second fixing external thread grooves, and second fixing internal thread grooves, and they are matched with each other.

5. The crawling ladder according to claim 2, wherein: The first connecting assembly includes a first connector, a first upper mounting tube and a first lower mounting tube integrally formed on the first connector, and a first lower connecting screw and a first upper connecting screw. The first upper mounting tube and the first lower mounting tube can be detachably placed in the first climbing tube. The first climbing tube has a through first lower connecting external threaded groove and a first upper connecting external threaded groove. The first lower mounting tube has a first lower connecting internal threaded groove, and the first upper mounting tube has a first upper connecting internal threaded groove. The first lower connecting external threaded groove and the first lower connecting internal threaded groove are matched. The first upper connecting external threaded groove and the first upper connecting internal threaded groove are matched. The first lower connecting screw is installed in the first lower connecting external threaded groove and the first lower connecting internal threaded groove, and the first upper connecting screw is installed in the first upper connecting external threaded groove and the first upper connecting internal threaded groove.

6. The crawling ladder according to claim 5, wherein: The second connecting assembly includes a second connector, a second upper mounting tube and a second lower mounting tube integrally formed on the second connector, a second lower connecting screw and a second upper connecting screw. The second upper mounting tube and the second lower mounting tube are detachably placed in the second climbing tube. The second climbing tube has a through second lower connecting external threaded groove and a second upper connecting external threaded groove. The second lower mounting tube has a second lower connecting internal threaded groove, and the second upper mounting tube has a second upper connecting internal threaded groove. The second lower connecting external threaded groove and the second lower connecting internal threaded groove are matched. The second upper connecting external threaded groove and the second upper connecting internal threaded groove are matched. The second lower connecting screw is installed in the second lower connecting external threaded groove and the second lower connecting internal threaded groove, and the second upper connecting screw is installed in the second upper connecting external threaded groove and the second upper connecting internal threaded groove.

7. The crawling ladder according to claim 6, characterized in that: The protective component includes an elastic protective belt, a first slider and a second slider installed on the elastic protective belt, and a buckle installed on the elastic protective belt. The first climbing pipe has a first sliding part, and the second climbing pipe has a second sliding part. The first sliding part is provided with a first sliding groove, and the second sliding part is provided with a second sliding groove. The first slider is slidably installed in the first sliding groove, and the second slider is slidably installed in the second sliding groove.

8. The crawling ladder according to claim 7, characterized in that: The first connector has a left connecting slide portion and the second connector has a right connecting slide portion. The left connecting slide portion is provided with a left connecting slide groove and the right connecting slide portion is provided with a right connecting slide groove. The left connecting slide groove is matched with the first slide groove and the right connecting slide groove is matched with the second slide groove.

9. The crawling ladder according to claim 1, wherein: The first climbing pipe has a first mounting plate, and the second climbing pipe has a second mounting plate. There are multiple first mounting plates and second mounting plates, which are spaced apart.