A water stop structure for pipe jacking machine

Abstract

The utility model proposes a water-stopping structure for a pipe jacking machine, including a mounting plate, a plurality of positioning holes are formed on the mounting plate, a filler is arranged on the mounting plate, a mounting frame is fixedly connected to one side of the mounting plate, a sealing bag is fixedly connected to the mounting frame, and a delivery pipe extending into the mounting frame and fixedly connected to the sealing bag is arranged on the filler. The advantage of the utility model is that when the pipe jacking machine pushes or pulls the pipe of the pipe jacking machine to move, the friction between the pipe of the pipe jacking machine and the movable sealing ring drives the movable sealing ring to move with it, and under the pulling of the second spring and the telescopic rod, the movable sealing ring rotates partially and clings to the pipe of the pipe jacking machine. The two groups of movable sealing rings push or pull the pipe of the pipe jacking machine to cling to the pipe of the pipe jacking machine to achieve sealing there. Under the elastic force of the first spring, the fixed sealing ring is attached to the pipe of the pipe jacking machine, and cooperates with the movable sealing ring to strengthen the sealing effect and improve the water-stopping performance.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking machines, in particular to a water-stop structure for pipe jacking machines. Background Art

[0002] The pipe jacking machine is a mechanical device used in municipal underground trenchless engineering. It can lay underground pipes through roads, railways, rivers, ground buildings, underground structures, etc. without excavating the surface layer. Before using the pipe jacking machine, a tunnel door needs to be opened on the wall of the working well. Since the size of the tunnel door is larger than that of the pipe jacking machine, there is a gap between the tunnel door and the outer wall of the pipe jacking machine. If there is groundwater in the soil of the well wall, the groundwater will flow out from the gap between the tunnel door and the pipe jacking machine.

[0003] For example, a pipe jacking machine water-stopping device with publication number CN220551494U can realize the horizontal penetration and jacking of the pipe jacking machine equipment at the hole on the well wall through the inner ring and outer disk, and the water-stopping components and auxiliary components arranged on the inner ring and outer disk can facilitate the good water-stopping effect between the pipe jacking machine equipment and the hole without hindering the horizontal jacking work of the pipe jacking machine equipment. However, during the process of jacking or pulling out the pipe, the water-stopping components will be worn, which will affect the water-stopping effect and is not conducive to the long-term use of the device. For this reason, a water-stopping structure for a pipe jacking machine is proposed for improvement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to provide a water-stop structure for a pipe jacking machine to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a water-stop structure for a pipe jacking machine, comprising a mounting plate, a plurality of positioning holes are formed on the mounting plate, a filler is provided on the mounting plate, a mounting frame is fixedly connected to one side of the mounting plate, a sealing bag is fixedly connected to the mounting frame, and a delivery pipe extending into the mounting frame and fixedly connected to the sealing bag is provided on the filler;

[0007] The mounting frame is provided with a mounting groove, a guide rod is inserted into the mounting frame, the inner end of the guide rod is fixedly connected to a movable frame, a first spring is provided between the movable frame and the mounting frame, a trapezoidal ring is fixedly connected to the inner side of the movable frame, and a fixed sealing ring is fixedly connected to the inner side of the trapezoidal ring;

[0008] A plurality of second springs are fixedly connected to both sides of the movable frame, a movable sealing ring is fixedly connected to the end of the second spring, and a telescopic rod is rotatably connected between the movable sealing ring and the movable frame.

[0009] Preferably, any of the above schemes is that the mounting plate and the mounting frame both adopt an annular structure, and a controller matching the filler is provided on the mounting plate.

[0010] Preferably, any of the above schemes is provided with a pipeline hole in the mounting frame, and a pull rope is provided between the sealing bag and the mounting frame.

[0011] The above technical solution is adopted: the mounting plate provides an installation platform for the relevant water-stopping components, and a number of fixing holes are opened on it, so that the staff can use bolts to fix it on the well wall. The filler set on the mounting plate is used to fill the sealing bag with medium, so that the sealing bag bulges and then seals the gap between the mounting frame and the well wall to prevent water seepage from there. The controller set on the mounting plate is used to control the work of the filler. A pipe hole is opened in the mounting frame to provide support for the delivery pipe, and the delivery pipe cooperates with the filler to fill the sealing bag.

[0012] Preferably, any of the above schemes has a limit ring on the outer end fixing frame of the guide rod, and the movable frame adopts a U-shaped structure.

[0013] Preferably, any of the above schemes is that the first spring is sleeved on the guide rod, and the trapezoidal ring is arranged in the middle of the movable frame.

[0014] The above technical solution is adopted: the installation groove provides installation and activity space for the guide rod, movable frame and other structures, the guide rod is connected to the movable frame, and the movable frame is constrained in the horizontal direction to prevent the movable frame from horizontal displacement. The movable frame provides an installation platform for the fixed sealing ring, and the first spring is arranged between the movable frame and the installation frame, so that the fixed sealing ring is attached to the pipe of the pipe jacking machine when there is no external force.

[0015] Preferably, any of the above schemes is that the fixed sealing ring is arranged in the middle of the movable frame, and a plurality of the second springs are evenly arranged on the movable sealing ring.

[0016] Preferably, any of the above schemes has a beveled surface on one side of the movable sealing ring close to the trapezoidal ring, and the telescopic rod comprises a sleeve and an insertion rod, and the sleeve and the insertion rod are rotatably connected to the movable frame and the trapezoidal ring respectively through a capstan.

[0017] The above technical solution is adopted: when the pipe jacking machine pushes or pulls the pipe of the pipe jacking machine to move, the friction between the pipe of the pipe jacking machine and the movable sealing ring drives the movable sealing ring to move with it, and under the pulling of the second spring and the telescopic rod, the movable sealing ring rotates partially and clings to the pipe of the pipe jacking machine. The two groups of movable sealing rings push or pull the pipe of the pipe jacking machine to cling to the pipe of the pipe jacking machine to achieve sealing at this location.

[0018] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0019] The water-stopping structure for the pipe jacking machine is provided with a mounting frame, a mounting groove, a guide rod, a movable frame, a first spring, a trapezoidal ring, a fixed sealing ring, a second spring, a movable sealing ring, a telescopic rod and other structures. When the pipe jacking machine pushes or pulls the pipe of the pipe jacking machine to move, the friction between the pipe of the pipe jacking machine and the movable sealing ring drives the movable sealing ring to move with it. Under the pulling of the second spring and the telescopic rod, the movable sealing ring rotates partially and clings to the pipe of the pipe jacking machine. The two groups of movable sealing rings push or pull the pipe of the pipe jacking machine to cling to the pipe of the pipe jacking machine to achieve sealing there. Under the elastic force of the first spring, the fixed sealing ring is attached to the pipe of the pipe jacking machine, and cooperates with the movable sealing ring to strengthen the sealing effect and improve the water-stopping performance.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the cutaway structure of the utility model after installation;

[0024] Figure 3 For the utility model Figure 2 The structural diagram at A in the middle;

[0025] Figure 4 It is a structural schematic diagram of the telescopic rod of the utility model.

[0026] In the figure: 1-mounting plate, 2-positioning hole, 3-filler, 4-mounting frame, 5-sealing bag, 6-conveying pipe, 7-mounting groove, 8-guide rod, 9-movable frame, 10-first spring, 11-trapezoidal ring, 12-fixed sealing ring, 13-second spring, 14-movable sealing ring, 15-telescopic rod, 16-well wall, 17-pipe of pipe jacking machine. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection 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.

[0029] like Figures 1 to 4 As shown, the utility model comprises a mounting plate 1, a plurality of positioning holes 2 are formed on the mounting plate 1, a filler 3 is provided on the mounting plate 1, a mounting frame 4 is fixedly connected to one side of the mounting plate 1, a sealing bag 5 is fixedly connected to the mounting frame 4, and a delivery pipe 6 is provided on the filler 3, which extends into the mounting frame 4 and is fixedly connected to the sealing bag 5;

[0030] The mounting frame 4 is provided with a mounting groove 7, a guide rod 8 is inserted into the mounting frame 4, a movable frame 9 is fixedly connected to the inner end of the guide rod 8, a first spring 10 is provided between the movable frame 9 and the mounting frame 4, a trapezoidal ring 11 is fixedly connected to the inner side of the movable frame 9, and a fixed sealing ring 12 is fixedly connected to the inner side of the trapezoidal ring 11;

[0031] A plurality of second springs 13 are fixedly connected to both sides of the movable frame 9 , a movable sealing ring 14 is fixedly connected to the end of the second spring 13 , and a telescopic rod 15 is rotatably connected between the movable sealing ring 14 and the movable frame 9 .

[0032] Embodiment 1: The mounting plate 1 and the mounting frame 4 both adopt an annular structure, and a controller matching the filler 3 is arranged on the mounting plate 1. A pipe hole is opened in the mounting frame 4, and a pull rope is arranged between the sealing bag 5 and the mounting frame 4. The mounting plate 1 provides an installation platform for the relevant water-stopping components, and a plurality of fixing holes 2 are opened on it, so that the staff can fix it on the well wall 16 with bolts. The filler 3 arranged on the mounting plate 1 is used to fill the sealing bag 5 with a medium, so that the sealing bag 5 bulges and then seals the gap between the mounting frame 4 and the well wall to prevent water seepage from there. The controller arranged on the mounting plate 1 is used to control the operation of the filler 3. A pipe hole is opened in the mounting frame 4 to provide support for the delivery pipe 6, and the delivery pipe 6 cooperates with the filler 3 to fill the sealing bag 5.

[0033] Embodiment 2: The outer end fixing frame of the guide rod 8 has a limit ring, and the movable frame 9 adopts a U-shaped structure. The first spring 10 is sleeved on the guide rod 8, and the trapezoidal ring 11 is arranged in the middle of the movable frame 9. The mounting groove 7 provides installation and activity space for the guide rod 8, the movable frame 9 and other structures. The guide rod 8 is connected to the movable frame 9 to constrain the movable frame 9 in the horizontal direction to prevent the movable frame 9 from being displaced in the horizontal direction. The movable frame 9 provides an installation platform for the fixed sealing ring 12. The first spring 10 is arranged between the movable frame 9 and the mounting frame 4, so that the fixed sealing ring 12 is attached to the pipe 17 of the pipe jacking machine when there is no external force.

[0034] Embodiment 3: The fixed sealing ring 12 is arranged in the middle of the movable frame 9, and a plurality of second springs 13 are evenly arranged on the movable sealing ring 14. The movable sealing ring 14 has an inclined surface on the side close to the trapezoidal ring 11, and the telescopic rod 15 includes a sleeve and an insertion rod, and the sleeve and the insertion rod are rotatably connected to the movable frame 9 and the trapezoidal ring 11 through a capstan seat respectively. When the pipe jacking machine pushes or pulls the pipe 17 of the pipe jacking machine to move, the friction between the pipe jacking machine pipe 17 and the movable sealing ring 14 drives the movable sealing ring 14 to move with it, and under the pulling of the second spring 13 and the telescopic rod 15, the movable sealing ring 14 rotates partially and is close to the pipe jacking machine pipe 17. The two groups of movable sealing rings 14 push or pull the pipe jacking machine pipe 17 to be close to the pipe jacking machine pipe 17, respectively, to achieve sealing there.

[0035] The working principle of the utility model is as follows:

[0036] S1, sleeve the mounting plate 1 onto the pipe 17 of the pipe jacking machine, and fix it on the well wall 16 by bolts in conjunction with the fixing holes 2;

[0037] S2, start the control drive filler 3 to fill the sealing bag 5 with the medium, the sealing bag 5 swells and then seals the gap between the mounting frame 4 and the well wall to prevent water seepage from there;

[0038] S3. When the pipe jacking machine pushes or pulls the pipe 17 of the pipe jacking machine to move, the friction between the pipe jacking machine pipe 17 and the movable sealing ring 14 drives the movable sealing ring 14 to move with it. Under the pulling of the second spring 13 and the telescopic rod 15, the movable sealing ring 14 rotates partially and is close to the pipe jacking machine pipe 17. The two groups of movable sealing rings 14 push or pull the pipe jacking machine pipe 17 to be close to the pipe jacking machine pipe 17, respectively, to achieve sealing at this location.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The water-stopping structure for the pipe jacking machine is provided with a mounting frame 4, a mounting groove 7, a guide rod 8, a movable frame 9, a first spring 10, a trapezoidal ring 11, a fixed sealing ring 12, a second spring 13, a movable sealing ring 14, a telescopic rod 15 and other structures. When the pipe jacking machine pushes or pulls the pipe 17 of the pipe jacking machine to move, the friction between the pipe 17 of the pipe jacking machine and the movable sealing ring 14 drives the movable sealing ring 14 to move with it. Under the pulling of the second spring 13 and the telescopic rod 15, the movable sealing ring 14 rotates partially and is close to the pipe jacking machine pipe 17. The two groups of movable sealing rings 14 push or pull the pipe jacking machine pipe 17 to be close to the pipe jacking machine pipe 17, respectively, to achieve sealing there. Under the elastic force of the first spring 10, the fixed sealing ring 12 is attached to the pipe jacking machine pipe 17, and cooperates with the movable sealing ring 14 to strengthen the sealing effect and improve the water-stopping performance.

Claims

1. A water-stopping structure for a pipe jacking machine, comprising a mounting plate (1); characterized in that: The mounting plate (1) is provided with a plurality of positioning holes (2), the mounting plate (1) is provided with a filler (3), one side of the mounting plate (1) is fixedly connected with a mounting frame (4), the mounting frame (4) is fixedly connected with a sealing bag (5), and the filler (3) is provided with a delivery pipe (6) extending into the mounting frame (4) and fixedly connected to the sealing bag (5); The mounting frame (4) is provided with a mounting groove (7), the mounting frame (4) is plugged with a guide rod (8), the inner end of the guide rod (8) is fixedly connected to a movable frame (9), a first spring (10) is provided between the movable frame (9) and the mounting frame (4), the inner side of the movable frame (9) is fixedly connected to a trapezoidal ring (11), and the inner side of the trapezoidal ring (11) is fixedly connected to a fixed sealing ring (12); A plurality of second springs (13) are fixedly connected to both sides of the movable frame (9), a movable sealing ring (14) is fixedly connected to the end of the second spring (13), and a telescopic rod (15) is rotatably connected between the movable sealing ring (14) and the movable frame (9).

2. A water-stop structure for a pipe jacking machine according to claim 1, characterized in that: The mounting plate (1) and the mounting frame (4) both adopt an annular structure, and a controller matching the filler (3) is arranged on the mounting plate (1).

3. A water-stopping structure for a pipe jacking machine as claimed in claim 2, characterized in that: A pipeline hole is provided in the mounting frame (4), and a pull rope is provided between the sealing bag (5) and the mounting frame (4).

4. A water-stopping structure for a pipe jacking machine as claimed in claim 3, characterized in that: The outer end fixing frame of the guide rod (8) has a limiting ring, and the movable frame (9) adopts a U-shaped structure.

5. A water-stopping structure for a pipe jacking machine as claimed in claim 4, characterized in that: The first spring (10) is sleeved on the guide rod (8), and the trapezoidal ring (11) is arranged in the middle of the movable frame (9).

6. A water-stopping structure for a pipe jacking machine as claimed in claim 5, characterized in that: The fixed sealing ring (12) is arranged in the middle of the movable frame (9), and a plurality of the second springs (13) are evenly arranged on the movable sealing ring (14).

7. A water-stopping structure for a pipe jacking machine as claimed in claim 6, characterized in that: The movable sealing ring (14) has an inclined surface on one side close to the trapezoidal ring (11). The telescopic rod (15) comprises a sleeve and an insertion rod, and the sleeve and the insertion rod are rotatably connected to the movable frame (9) and the trapezoidal ring (11) respectively through a capstan.

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