Assembly type pedestrian stairway for pipe jacking working well

Abstract

The utility model relates to the technical field of pipe-jacking working wells, in particular to a pipe-jacking working well assembly type pedestrian stairway which comprises a stairway body arranged on a working well. The locking piece is arranged on the stair body and is suitable for being detachably connected with a cross beam on the inner wall of the working well; the supporting part is connected with the stair body and arranged on the ground on one side of the top of the working well, a limiting groove is formed in the bottom face of the supporting part, and the limiting groove is suitable for being arranged on a protruding block on the ground on one side of the top of the working well in a sleeving mode. According to the pipe-jacking working well assembly type pedestrian stairway, when the stairway body is supported and installed through the supporting part, the stairway body is placed in the working well, the protruding blocks are sleeved with the limiting grooves, then the locking pieces are connected with the cross beams, installation of the stairway body can be achieved, assembly and disassembly are convenient and fast, and installation of the stairway body is firm.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking working wells, in particular to an assembled pedestrian staircase for a pipe jacking working well. Background Art

[0002] Pipe jacking technology is a non-excavation pipeline laying technology used in municipal construction. The advantages are that it has no impact on the surrounding environment or has a small impact, a small construction site, and low noise. It can also work deep underground, which is an advantage that excavation and burying pipes cannot match.

[0003] During pipe jacking construction, at least one working pit is usually opened, and then construction starts from the working pit. To facilitate construction workers to enter and exit the working pit, pedestrian stairs are usually set up on the working pit. Existing stairs are generally fixed, and disassembly and assembly are relatively troublesome. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to solve the technical problems in the prior art, the utility model provides an assembled pedestrian staircase for a jacking pipe working pit.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an assembled pedestrian staircase for a top pipe working shaft, comprising a staircase body, which is arranged on the working shaft; a locking piece, which is arranged on the staircase body and is suitable for being detachably connected to a crossbeam on the inner wall of the working shaft; a supporting part, which is connected to the staircase body and is arranged on the ground on one side of the top of the working shaft, and a limiting groove is provided on the bottom surface of the supporting part, and the limiting groove is suitable for being sleeved on a protrusion on the ground on one side of the top of the working shaft.

[0006] The utility model discloses a pipe-jacking working well assembled pedestrian staircase, which supports the staircase body by means of a supporting part. When installing, the staircase body is placed in the working well, and the limiting groove is sleeved on the protrusion. Then, the locking part is connected to the crossbeam, and the installation of the staircase body can be realized. The assembly and disassembly is convenient, and the installation of the staircase body is relatively firm.

[0007] Furthermore, the locking member includes a locking plate and a locking bolt, the locking plate is connected to the stair body, the locking bolt is threadedly connected to the locking plate, and the locking bolt is suitable for contacting the crossbeam.

[0008] Furthermore, each group of the locking members has two locking plates and locking bolts, and the two locking plates and locking bolts are arranged on two sides of the same beam opposite to each other in the vertical direction.

[0009] Furthermore, the locking plate is hinged to the stair body, and the stair body is provided with a receiving groove for receiving the locking plate.

[0010] Furthermore, the support portion is hinged to the stair body, and a fixing piece is provided on the stair body, and the fixing piece is suitable for fixing the stair body and the support portion relative to each other.

[0011] Furthermore, a gear is fixedly connected to the support portion, the gear is rotatably connected to the stair body, a rack is slidably disposed in the stair body, the rack is meshed with the gear, and the fixing member is suitable for clamping the rack.

[0012] Furthermore, the fixing member includes a slider and a latching tooth fixedly connected to the slider, and the latching tooth is suitable for latching on the rack to prevent the rack from moving.

[0013] Furthermore, a fixing bolt is threadedly connected to the slider, and the fixing bolt is suitable for locking the position of the slider.

[0014] The beneficial effects of the utility model are:

[0015] 1. The staircase body is supported by the support part. When installing, the staircase body is placed in the working well, and the limiting groove is sleeved on the protrusion. Then the locking piece is connected to the crossbeam to realize the installation of the staircase body. The installation and disassembly are convenient, and the installation of the staircase body is relatively firm.

[0016] 2. The hinged connection between the support part and the stair body facilitates the adjustment of the angle of the support part relative to the stair body, which is convenient for adapting to the ground with different slopes and can increase the length of the stair body when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic structural diagram of the overall assembled pedestrian staircase for a pipe jacking working shaft in the utility model.

[0019] Figure 2 It is a schematic diagram of the limit groove in the utility model.

[0020] Figure 3 It is a schematic diagram of the gear and rack in the utility model.

[0021] In the figure: 1, working well; 11, protrusion; 12, crossbeam; 2, stair body; 21, locking plate; 211, receiving groove; 22, locking bolt; 23, gear; 24, rack; 25, slider; 26, latch tooth; 27, fixing bolt; 3, supporting part; 31, limiting groove. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The utility model discloses an assembled pedestrian staircase for a pipe jacking working pit.

[0025] Reference Figures 1 to 3 A jacking pipe working shaft assembled pedestrian staircase comprises a staircase body 2, which is arranged in the working shaft 1. A locking piece is provided on the staircase body 2, and the locking piece is suitable for being detachably connected with a crossbeam 12 on the inner wall of the working shaft 1. A support part 3 is also hinged on the staircase body 2, and the support part 3 is arranged on the ground on one side of the top of the working shaft 1. A limiting groove 31 is provided on the bottom surface of the support part 3, and the limiting groove 31 is suitable for being sleeved on a protrusion 11 on the ground on one side of the top of the working shaft 1. The staircase body 2 is supported by the support part 3. During installation, the staircase body 2 is placed in the working shaft 1, and the limiting groove 31 is sleeved on the protrusion 11. Then, the locking piece is connected to the crossbeam 12, and the installation of the staircase body 2 can be realized. The assembly and disassembly is convenient, and the installation of the staircase body 2 is relatively reliable.

[0026] Specifically, the locking member includes a locking plate 21 and a locking bolt 22. The locking plate 21 is hinged to the staircase body 2. The locking bolt 22 is threadedly connected to the locking plate 21. The locking bolt 22 is suitable for contacting the crossbeam 12. The staircase body 2 is provided with a receiving groove 211 for receiving the locking plate 21. The locking plate 21 can be rotated into the receiving groove 211, so that when the staircase body 2 is placed in the working well 1, the locking plate 21 will not interfere with the crossbeam 12.

[0027] It should be noted that multiple sets of locking parts are provided on each side of the stair body 2 in the vertical direction, and each set of locking parts has two locking plates 21 and locking bolts 22. The two locking plates 21 and locking bolts 22 are relatively arranged on both sides of the same beam 12 in the vertical direction.

[0028] Specifically, a fixing piece is provided on the staircase body 2, and the fixing piece is suitable for fixing the staircase body 2 relative to the support part 3. A gear 23 is fixedly connected to the support part 3, and the gear 23 is rotatably connected to the staircase body 2. A rack 24 is slidably provided in the staircase body 2, and the rack 24 is meshed with the gear 23. The fixing piece is suitable for clamping the rack 24.

[0029] More specifically, the fixing member includes a slider 25 and a latch 26 fixedly connected to the slider 25, wherein the latch 26 is adapted to be latched on the rack 24 to prevent the rack 24 from moving. A fixing bolt 27 is threadedly connected to the slider 25, and the fixing bolt 27 is adapted to lock the position of the slider 25.

[0030] Working principle: The staircase body 2 is supported by the support part 3. When installing, the staircase body 2 is placed in the working well 1, and the limiting groove 31 is placed on the protrusion 11. Then the locking piece is connected to the crossbeam 12 to realize the installation of the staircase body 2. The assembly and disassembly are convenient, and the installation of the staircase body 2 is relatively reliable. The support part 3 is hinged to the staircase body 2, so that the support part 3 can adjust the angle relative to the staircase body 2. On the one hand, it is easy to adapt to the ground with different slopes, and on the other hand, the length of the staircase body 2 can be increased when needed.

[0031] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An assembled pedestrian staircase for a pipe jacking working pit, characterized in that: include The staircase body (2) is arranged in the working well (1); A locking member is provided on the staircase body (2) and is suitable for being detachably connected to a crossbeam (12) on the inner wall of the working well (1); The support part (3) is connected to the staircase body (2) and is arranged on the ground at one side of the top of the working well (1). A limiting groove (31) is arranged on the bottom surface of the support part (3). The limiting groove (31) is suitable for being sleeved on a protrusion (11) on the ground at one side of the top of the working well (1).

2. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 1 is characterized in that: The locking member comprises a locking plate (21) and a locking bolt (22), wherein the locking plate (21) is connected to the staircase body (2), the locking bolt (22) is threadedly connected to the locking plate (21), and the locking bolt (22) is suitable for contacting the crossbeam (12).

3. The assembled pedestrian staircase for the pipe jacking pit (1) according to claim 2 is characterized in that: Each group of locking members has two locking plates (21) and locking bolts (22), and the two locking plates (21) and locking bolts (22) are arranged on two sides of the same crossbeam (12) in a vertical direction.

4. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 2 is characterized in that: The locking plate (21) is hinged to the staircase body (2), and the staircase body (2) is provided with a receiving groove (211) for receiving the locking plate (21).

5. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 1, characterized in that: The support part (3) is hinged to the staircase body (2), and a fixing piece is provided on the staircase body (2), wherein the fixing piece is suitable for fixing the staircase body (2) and the support part (3) relative to each other.

6. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 5, characterized in that: A gear (23) is fixedly connected to the support portion (3), the gear (23) is rotatably connected to the staircase body (2), a rack (24) is slidably disposed in the staircase body (2), the rack (24) is meshed with the gear (23), and the fixing member is suitable for clamping the rack (24).

7. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 6, characterized in that: The fixing member comprises a slider (25) and a latching tooth (26) fixedly connected to the slider (25), wherein the latching tooth (26) is suitable for being latched on the rack (24) to prevent the rack (24) from moving.

8. The assembled pedestrian staircase for the pipe jacking working pit (1) according to claim 7, characterized in that: The slider (25) is threadedly connected with a fixing bolt (27), and the fixing bolt (27) is suitable for locking the position of the slider (25).

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