Trenchless underground pipe network top pipe laying mechanism

Abstract

The utility model discloses a trenchless underground pipe network jacking pipe laying mechanism which achieves convenient adjustment of a jacking pipe backrest. A base backup plate (7) is vertically arranged on a right side well wall (10) in a starting point well (1), three threaded through holes (11) are formed in the concentric circumference of the base backup plate (7) at equal intervals in a radian mode, jackscrew rods (8) are connected into the threaded through holes (11) in a threaded mode, a foot-pad plate (9) is fixedly connected to the right ends of the jackscrew rods (8), and the foot-pad plate (9) abuts against the right side well wall (10). A pipe jacking base plate (5) is arranged on a right port of the prefabricated pipe (4), and a hydraulic jack (6) is arranged between the pipe jacking base plate (5) and the base backup plate (7); the pipe jacking rear backrest can be adjusted, can be repeatedly used, is convenient to install and use, and can improve the construction efficiency and reduce the waste of materials.

Description

Technical Field

[0001] The utility model relates to an assembled underground pipe network jacking pipe, in particular to a trenchless underground pipe network jacking pipe laying mechanism. Background Art

[0002] The layout of underground pipe networks sometimes adopts the trenchless layout method. This method is to dig a starting well and a terminal well on the ground at a certain distance. First, a concrete support base is poured in the starting well. After the concrete support base solidifies, a jacking guide rail is laid at the bottom of the starting well, and the jacking iron is placed at the front end of the well wall. After the jack is set between the concrete support base and the jacking iron, the jack is started to push the jacking iron into the soil. After retracting the jack, the water pipe is placed between the jack and the jacking iron and pushed into the soil. This process is repeated until the jacking iron is pushed into the terminal well. This work is completed. The laying of trenchless pipe networks; the concrete support base of this method needs to be cast on site, which is time-consuming and labor-intensive, and needs to be dismantled after the construction is completed. During the construction process, the concrete base is prone to cracking and damage due to excessive force, affecting the normal progress of the construction; there is also a method of using steel plates instead of concrete bases on site to overcome the above defects. Due to the unstable soil of the well wall, especially when the diameter of the pipe to be top-connected is large, the steel plate base is prone to tilt during the top-connection process, which directly causes the steel pipe to deviate from the predetermined track and causes rework. Summary of the invention

[0003] The utility model provides a non-excavation underground pipe network jacking pipe laying mechanism, which realizes the convenient adjustment of the jacking pipe backrest.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A non-excavation underground pipe network jacking arrangement mechanism comprises a starting well, at the well bottom of the starting well, a prefabricated pipe jacking track is arranged, a prefabricated pipe is arranged on the prefabricated pipe jacking track, a jacking iron is arranged at the left end of the prefabricated pipe, the jacking iron is jacked into the left soil body in the starting well, a base support plate is vertically arranged on the right well wall in the starting well, three threaded through holes are arranged at equal intervals on the concentric circle of the base support plate, a jacking screw is screwed in the threaded through hole, a foot plate is fixedly connected to the right end of the jacking screw, the foot plate is abutted against the right well wall, a jacking pipe pad is arranged on the right port of the prefabricated pipe, and a hydraulic jack is arranged between the jacking pipe pad and the base support plate.

[0006] A hydraulic cylinder connection plug socket is arranged on the left side elevation of the base back plate. The hydraulic cylinder connection plug socket is arranged within the circumference of the circle with threaded through holes, and the central axis of the hydraulic cylinder connection plug socket coincides with the center of the circumference of the circle with three threaded through holes.

[0007] The rear backrest of the jacking pipe of the utility model can be adjusted and reused, is easy to install and use, can improve construction efficiency, and reduce material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 It is a structural schematic diagram of the base backing plate 7 of the utility model;

[0010] Figure 3 It is a structural schematic diagram of the threaded through hole 11 on the base back plate 7 and the hydraulic cylinder connecting plug socket 12 of the utility model;

[0011] Figure 4 It is a structural schematic diagram of a prefabricated pipe jacking track 3 of the utility model. DETAILED DESCRIPTION

[0012] The utility model is described in detail below with reference to the accompanying drawings:

[0013] A non-excavation underground pipe network jacking arrangement mechanism comprises a starting well 1, at the well bottom of the starting well 1, a prefabricated pipe jacking track 3 is arranged, a prefabricated pipe 4 is arranged on the prefabricated pipe jacking track 3, a jacking iron 2 is arranged at the left end of the prefabricated pipe 4, the jacking iron 2 is jacked into the left soil body in the starting well 1, a base support plate 7 is vertically arranged on the right well wall 10 in the starting well 1, three threaded through holes 11 are arranged at equal intervals on the concentric circle of the base support plate 7, a jacking screw 8 is screwed in the threaded through hole 11, and a jacking screw 8 is screwed in the jacking screw 8. The right end of the jacking screw rod 8 is fixedly connected with a foot plate 9, which is abutted against the right side of the well wall 10. A jacking pipe pad 5 is arranged on the right port of the prefabricated pipe 4, and a hydraulic jack 6 is arranged between the jacking pipe pad 5 and the base support plate 7. The adjustable base of the utility model can cope with soils of different hardness. When the soil is uneven and the jacking direction of the jacking pipe is affected, the three jacking screw rods 8 can be rotated and adjusted respectively to achieve the angle of the base support plate 7 abutting against the right side of the well wall 10, so as to realize the jacking of the jacking pipe according to the designed direction.

[0014] A hydraulic cylinder connection plug socket 12 is arranged on the left side elevation of the base back plate 7. The hydraulic cylinder connection plug socket 12 is composed of three plug-in blocks. The three plug-in blocks are arranged on the same circumference, which is concentric with the circumference of the circle where the threaded through hole 11 is located.

[0015] Before the jacking construction, the base support plate 7 is first placed vertically on the right side well wall 10 in the starting well 1, and the base support plate 7 is adjusted to a vertical state by rotating the jacking screw 8 respectively, and the base of the hydraulic jack 6 is connected to the hydraulic cylinder connecting plug socket 12, and then the prefabricated pipe 4 is placed on the prefabricated pipe jacking track 3, and a jacking pad 5 is set on the right port of the prefabricated pipe 4. The hydraulic jack 6 is started to push the prefabricated pipe 4 into the left side soil in the starting well 1, and the jacking operation is repeated until the next construction wellhead.

Claims

1. A trenchless underground pipe network jacking arrangement mechanism, comprising a starting well (1), a prefabricated pipe jacking track (3) being arranged at the bottom of the starting well (1), a prefabricated pipe (4) being arranged on the prefabricated pipe jacking track (3), a jacking iron (2) being arranged at the left end of the prefabricated pipe (4), the jacking iron (2) being jacked into the left soil body in the starting well (1), characterized in that: A base support plate (7) is vertically arranged on the right side well wall (10) in the starting well (1), three threaded through holes (11) are arranged at equal intervals on the concentric circumference of the base support plate (7), a jacking screw (8) is screwed into the threaded through hole (11), a padding plate (9) is fixedly connected to the right end of the jacking screw (8), the padding plate (9) is abutted against the right side well wall (10), a jacking plate (5) is arranged on the right end of the prefabricated pipe (4), and a hydraulic jack (6) is arranged between the jacking plate (5) and the base support plate (7).

2. A trenchless underground pipe network jacking arrangement mechanism according to claim 1, characterized in that: A hydraulic cylinder connection plug seat (12) is arranged on the left side elevation of the base back plate (7), and the hydraulic cylinder connection plug seat (12) is arranged within the circumference of the circle where the threaded through holes (11) are located, and the central axis of the hydraulic cylinder connection plug seat (12) coincides with the center of the circumference of the circle where the three threaded through holes (11) are located.

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