Maintenance crawling ladder structure of pipe jacking working pit

Abstract

The utility model discloses an overhaul crawling ladder structure of a pipe jacking working pit, which comprises a plurality of crawling ladder frames, the crawling ladder frames are sequentially arranged along the vertical direction, and two sides of the top and the bottom of each crawling ladder frame are respectively provided with a mounting seat. And the two mounting seats correspondingly arranged between the two adjacent ladder stand frames are connected through a plurality of fastening bolts. The maintenance crawling ladder adopts a modular design, so that workers can conveniently transport and install the maintenance crawling ladder.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe jacking construction, in particular to a kind of maintenance cat ladder structure of pipe jacking working pit. BACKGROUND

[0002] Pipe jacking construction is a trenchless construction method, which is a pipe laying construction technology without or with less excavation. Pipe jacking working pit, also known as pipe jacking pit, is a temporary facility at the starting point, ending point and turning point of pipe jacking construction. Guide rail, backrest, back wall, jack and other equipment are installed in the pipe jacking pit.

[0003] In the related art, a maintenance cat ladder is usually provided in the pipe jacking pit. The maintenance cat ladder is fixedly connected with the main building of the pipe jacking pit, so that workers can enter the pipe jacking pit through the maintenance cat ladder. However, the existing maintenance cat ladder usually adopts a monolithic structure, and the transportation and installation of the maintenance cat ladder are relatively troublesome, which needs to be improved. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a maintenance cat ladder structure of pipe jacking working pit, which adopts modular design to facilitate the transportation and installation of the maintenance cat ladder by workers.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme: a maintenance cat ladder structure of pipe jacking working pit, comprising a plurality of cat ladder frames, and the cat ladder frames are arranged in sequence along the vertical direction. Two mounting seats are arranged at the top and the bottom of each cat ladder frame, and two mounting seats arranged correspondingly between adjacent cat ladder frames are connected by a plurality of fastening bolts.

[0006] In a preferred example, the utility model can be further configured as follows: each cat ladder frame comprises two vertically arranged support columns, and the mounting seat is fixed to the corresponding end of the support column. A stepping rod is horizontally arranged between the two support columns. A plurality of stepping rods are arranged at equal intervals along the vertical direction, and the two ends of each stepping rod are welded and fixed to the corresponding support column. A load-bearing part is arranged on each support column, and the load-bearing part is used to connect with the main building of the pipe jacking pit.

[0007] In a preferred example, the utility model can be further configured as follows: the load-bearing part comprises a load-bearing seat and a load-bearing rod. The load-bearing seat can be pre-buried in the main building of the pipe jacking pit. One end of the load-bearing rod is welded and fixed to the support column, and the other end is welded and fixed to the load-bearing seat.

[0008] In a preferred example, the utility model can be further configured as follows: a mounting groove is arranged on the load-bearing seat, and one end of the load-bearing rod, which is away from the support column, is tightly inserted into the mounting groove.

[0009] The utility model discloses in a preferable example can be further configured as: the ladder stand still includes the U-shaped guard frame, the both ends of guard frame are fixed with corresponding support column welding respectively, and the guard frame, support column and the footstep pole form the protection channel for the staff to pass between.

[0010] The utility model discloses in a preferable example can be further configured as: the guard frame includes a plurality of U-shaped guard poles, a plurality of guard poles are arranged along the vertical direction equidistance, and the both ends of each guard pole are fixed with corresponding support column welding respectively, and adjacent two guard poles are provided with the U-shaped guard net respectively, and the both ends of guard net are fixed with corresponding guard pole welding respectively.

[0011] The utility model discloses in a preferable example can be further configured as: the footstep pole is provided with the non-slip pad.

[0012] Summarized above, the utility model has following beneficial effect:

[0013] 1. Overhaul ladder adopts modular design, and convenient for the transport and installation operation of staff to overhaul ladder, can improve transport convenience, can improve construction efficiency, and simultaneously, overhaul ladder can be prefabricated in factory in advance, can guarantee the machining precision and product quality.

[0014] 2. Since support column, footstep pole and guard frame form annular guard structure, can improve the protection effect to staff, reduce the risk that staff falls from overhaul ladder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is structural schematic diagram of embodiment;

[0016] Figure 2 It is structural schematic diagram of ladder stand in embodiment.

[0017] Fig. 1 is the structural schematic diagram of the utility model, and Fig. 2 is the structural schematic diagram of the utility model in another preferred example. DETAILED DESCRIPTION

[0018] The utility model will be explained further in detail below in combination with drawings.

[0019] Refer to Figure 1 , Figure 2The utility model provides a kind of top pipe working pit's maintenance ladder structure, including multiple vertical setting's ladder frame 1, and multiple ladder frame 1 is sequentially arranged along vertical direction. The both sides position of the top of each ladder frame 1 and the both sides position of the bottom are respectively fixedly connected with mounting seat 2, the two mounting seats 2 correspondingly provided between adjacent two ladder frames 1 can be mutually abutted, and the two mounting seats 2 correspondingly provided are connected by multiple fastening bolts 3.

[0020] Maintenance ladder adopts modular design, convenient for staff to transport and install maintenance ladder, which can improve transportation convenience and construction efficiency, and the maintenance ladder can be prefabricated in factory in advance, to ensure processing precision and product quality.

[0021] Refer to Figure 1 、 Figure 2 Each ladder frame 1 includes two vertical setting's support column 11, and mounting seat 2 is fixedly connected to the corresponding end of support column 11, that is, the top and bottom of each support column 11 are respectively fixedly connected with mounting seat 2. Pedal rod 12 is horizontally arranged between two support columns 11, and multiple pedal rods 12 are arranged at equal intervals along the vertical direction. Both ends of each pedal rod 12 are respectively welded and fixed with corresponding support column 11, and anti-skid pad 4 is arranged on pedal rod 12. Meanwhile, load-bearing part 13 is arranged on each support column 11, and load-bearing part 13 is used to connect with top pipe pit main building.

[0022] Refer to Figure 1 、 Figure 2 Load-bearing part 13 includes load-bearing seat 131 and load-bearing rod 132, load-bearing seat 131 can be embedded into top pipe pit main building, mounting groove 133 is arranged on load-bearing seat 131, one end of load-bearing rod 132 is inserted into mounting groove 133 and welded and fixed with support column 11, and the other end is welded and fixed with load-bearing seat 131, to ensure the connection stability of support column 11 and top pipe pit main building.

[0023] Refer to Figure 1 、 Figure 2 Ladder frame 1 also includes U-shaped protective frame 14, both ends of protective frame 14 are respectively welded and fixed with corresponding support column 11, and protective frame 14, support column 11 and pedal rod 12 form protective channel for workers to pass through, that is, support column 11, pedal rod 12 and protective frame 14 form annular protective structure, which can improve the protection effect of workers and reduce the risk of workers falling from maintenance ladder.

[0024] Refer to Figure 1 、 Figure 2The guard frame 14 comprises a plurality of U-shaped guard rods 141, the plurality of guard rods 141 are arranged equidistantly along the vertical direction, and two ends of each guard rod 141 are respectively welded and fixed with corresponding support columns 11. Meanwhile, two adjacent guard rods 141 are respectively provided with a U-shaped guard net 142, and two ends of the guard net 142 are respectively welded and fixed with corresponding guard rods 141.

[0025] The specific embodiments are only an interpretation of the utility model, and are not a limitation of the utility model. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A maintenance ladder structure for a pipe jacking working pit, characterized in that: It includes multiple climbing ladder frames (1), and the multiple climbing ladder frames (1) are arranged in sequence along the vertical direction. Each climbing ladder frame (1) has a mounting seat (2) at the top and bottom sides respectively, and the two mounting seats (2) corresponding to each adjacent climbing ladder frame (1) are connected by multiple fastening bolts (3).

2. The maintenance ladder structure according to claim 1, characterized in that: Each of the climbing ladder frames (1) includes two vertically arranged support columns (11), and the mounting base (2) is fixed to the corresponding end of the support column (11). A step bar (12) is horizontally arranged between the two support columns (11). Multiple step bars (12) are arranged at equal intervals in the vertical direction, and the two ends of each step bar (12) are welded and fixed to the corresponding support column (11). Each support column (11) is provided with a load-bearing part (13), and the load-bearing part (13) is used to connect with the main building of the pipe jacking pit.

3. The maintenance ladder structure according to claim 2, characterized in that: The load-bearing part (13) includes a load-bearing seat (131) and a load-bearing rod (132). The load-bearing seat (131) can be pre-embedded in the main building of the pipe jacking pit. One end of the load-bearing rod (132) is welded and fixed to the support column (11), and the other end is welded and fixed to the load-bearing seat (131).

4. The maintenance ladder structure according to claim 3, characterized in that: The load-bearing base (131) is provided with an installation groove (133), and the end of the load-bearing rod (132) away from the support column (11) is tightly inserted into the installation groove (133).

5. The maintenance ladder structure according to claim 2, characterized in that: The ladder frame (1) also includes a U-shaped protective frame (14), the two ends of which are welded and fixed to the corresponding support columns (11), and a protective passage for workers to pass through is formed between the protective frame (14), the support columns (11) and the step bar (12).

6. The maintenance ladder structure according to claim 5, characterized in that: The protective frame (14) includes multiple U-shaped protective rods (141), which are arranged at equal intervals along the vertical direction. The two ends of each protective rod (141) are welded and fixed to the corresponding support column (11). A U-shaped protective net (142) is provided on each adjacent two protective rods (141), and the two ends of the protective net (142) are welded and fixed to the corresponding protective rod (141).

7. The maintenance ladder structure according to claim 2, characterized in that: The foot pedal (12) is provided with an anti-slip pad (4).

Images