Waterproof structure of pipe-jacking pipe joint connector

Abstract

The utility model relates to the technical field of jacking pipe connection, in particular to a jacking pipe joint connector waterproof structure which comprises a connecting pipe and a jacking pipe body, the top end of the connecting pipe is fixedly connected with a fixing pipe, the top end of the fixing pipe is fixedly connected with the jacking pipe body, and the side end of the jacking pipe body is fixedly connected with a sealing ring. The side end of the top end body is fixedly connected with a limiting ring, the top end of the connecting pipe is slidably connected with a plurality of compensation plates, the top end of the connecting pipe is provided with a plurality of sliding grooves, the sliding grooves are annularly arranged with the fixing pipe as the center, and the inner side walls of the compensation plates are fixedly connected with extrusion plates. The middle of the fixing pipe is sleeved with an extrusion ring, the right side of the extrusion ring is fixedly connected with a plurality of inserting plates, the middle of the fixing pipe is sleeved with a compensation rubber pipe, the compensation rubber pipe can be extruded by means of extrusion force generated when the jacking pipe moves, and therefore the damaged position of the sealing ring is compensated, and the sealing performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking connection, in particular to a waterproof structure for the joint of pipe jacking pipe sections. Background Technique

[0002] With the continuous construction of cities, there are a large number of buildings on the ground, and the situation on the ground is becoming more and more complex, making it impossible to dig up the ground when adding underground pipelines subsequently. This requires the use of pipe jacking technology for construction. Pipe jacking construction does not require excavation of the surface layer and can cross roads, railways, rivers, and ground buildings, etc. Pipe jacking construction relies on the thrust of the main jack cylinders and the intermediate jacks between pipes to push the tool pipe or tunneling machine through the soil layer from the working well to the receiving well. To ensure the waterproof effect, a sealing ring is set at the connection of two pipe jackings. However, the sealing ring at the pipe jacking joint will be damaged due to the propulsion extrusion force during construction. For this reason, multiple ring sleeves are set at the pipe jacking connection to prevent water ingress, but this method has poor effect, and the ring sleeves will also be damaged due to the extrusion force, resulting in poor waterproof effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a waterproof structure for the joint of pipe jacking pipe sections to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A waterproof structure for the joint of pipe jacking pipe sections, including a connecting pipe and a pipe jacking main body. The top end of the connecting pipe is fixedly connected with a fixed pipe, the top end of the fixed pipe is fixedly connected with the pipe jacking main body, a sealing ring is fixedly connected to the side end of the pipe jacking main body, the sealing ring is located at the connection of the top end main body and the fixed pipe, a limiting ring is fixedly connected to the side end of the pipe jacking main body, a plurality of compensation plates are slidably connected to the top end of the connecting pipe, a plurality of sliding grooves are provided at the top end of the connecting pipe, the sliding grooves are arranged in a ring shape with the fixed pipe as the center, an extrusion plate is fixedly connected to the inner side wall of the compensation plate, an extrusion ring is sleeved in the middle of the fixed pipe, a plurality of plug-in plates are fixedly connected to the right side of the extrusion ring, and a compensation rubber pipe is sleeved in the middle of the fixed pipe.

[0005] Preferably, the compensation plate is of an arc structure, and a plurality of compensation plates form an annular structure, and adjacent two compensation plates are abutted against each other.

[0006] Preferably, the outer side wall of the compensation plate is of an inclined structure, and the thickness of the compensation plate gradually decreases from left to right.

[0007] Preferably, a sliding plate is fixedly connected to the side end of the compensation plate, and the sliding plate is slidably connected in the sliding groove.

[0008] Preferably, the left side of the extrusion ring is of an inclined structure, the lower corners of the extrusion plate are of an inclined structure, and the lower end of the extrusion plate abuts against the extrusion ring.

[0009] Preferably, a plurality of insertion slots are provided at the top end of the limiting ring, and the insertion plate is inserted into the insertion slots.

[0010] Preferably, one end of the compensating rubber tube abuts against the sealing ring, and the other end of the compensating rubber tube abuts against the side end of the extrusion ring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: A sealing ring and a compensating rubber tube are arranged at the connection between the fixed pipe and the jacking pipe main body. When the jacking pipe main body moves forward, the external soil will extrude the compensating plate, thereby pushing the extrusion ring to move. The extrusion ring extrudes the compensating rubber tube, so as to fill and compensate the damaged part of the sealing ring, ensuring the sealing effect at the connection between the fixed pipe and the jacking pipe main body. This compensating structure enables the sealing ring not to leak even if it is damaged due to the extrusion force. Description of the Drawings

[0012] Figure 1 It is a schematic connection diagram of the connecting pipe and the jacking pipe main body.

[0013] Figure 2 It is a three-dimensional connection schematic diagram of the compensating plate.

[0014] Figure 3 It is an enlarged schematic diagram of point A.

[0015] In the figure: 1 connecting pipe, 2 jacking pipe main body, 3 fixed pipe, 4 sliding groove, 5 extrusion ring, 6 insertion plate, 7 compensating plate, 8 sliding plate, 9 extrusion plate, 10 limiting ring, 11 insertion slot, 12 sealing ring, 13 compensating rubber tube. Detailed Embodiment

[0016] In order to deepen the understanding and recognition of the present utility model below, the technical solutions in the embodiments of the present utility model will be clearly and completely described and introduced in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments, and no any formal restrictions are imposed on this embodiment. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a waterproof structure for a jacking pipe joint, which includes a connecting pipe 1 and a jacking pipe main body 2. A fixed pipe 3 is fixedly connected to the top end of the connecting pipe 1, and the top end of the fixed pipe 3 is fixedly connected to the jacking pipe main body 2. A sealing ring 12 is fixedly connected to the side end of the jacking pipe main body 2, and the sealing ring 12 is located at the connection between the top end main body and the fixed pipe 3. A limiting ring 10 is fixedly connected to the side end of the jacking pipe main body 2. A plurality of compensation plates 7 are slidably connected to the top end of the connecting pipe 1. A plurality of sliding grooves 4 are provided at the top end of the connecting pipe 1, and the sliding grooves 4 are arranged annularly with the fixed pipe 3 as the center. An extrusion plate 9 is fixedly connected to the inner side wall of the compensation plate 7. An extrusion ring 5 is sleeved in the middle of the fixed pipe 3. A plurality of insertion plates 6 are fixedly connected to the right side of the extrusion ring 5. A compensation rubber tube 13 is sleeved in the middle of the fixed pipe 3. The sealing ring 12 can seal the connection between the fixed pipe 3 and the jacking pipe main body 2.

[0018] The compensation plate 7 is of an arc-shaped structure, and a plurality of compensation plates 7 form an annular structure. Adjacent two compensation plates 7 are abutted against each other. The outer side wall of the compensation plate 7 is an inclined structure, and the thickness of the compensation plate 7 gradually decreases from left to right. A sliding plate 8 is fixedly connected to the side end of the compensation plate 7, and the sliding plate 8 is slidably connected in the sliding groove 4. The left side of the extrusion ring 5 is an inclined structure, and the lower corner of the extrusion plate 9 is an inclined structure. The lower end of the extrusion plate 9 abuts against the extrusion ring 5. A plurality of insertion grooves 11 are provided at the top end of the limiting ring 10, and the insertion plates 6 are inserted into the insertion grooves 11. One end of the compensation rubber tube 13 abuts against the sealing ring 12, and the other end of the compensation rubber tube 13 abuts against the side end of the extrusion ring 5. When the jacking pipe main body 2 moves, because the outer side wall of the compensation plate 7 protrudes from the jacking pipe main body 2, the external soil squeezes the compensation plate 7, and the compensation plate 7 is squeezed and moves. At this time, the sliding plate 8 slides in the sliding groove 4, and the extrusion plate 9 at the lower end of the compensation plate 7 squeezes the extrusion ring 5, so that the extrusion ring 5 moves horizontally, and the extrusion ring 5 squeezes the compensation rubber tube 13, and the compensation rubber tube 13 thus fills and compensates the damaged part of the sealing ring 12 to ensure the waterproof property.

[0019] Although the embodiments of the present utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the usage modes of the embodiments of the present utility model, and does not impose any form of limitation on the present utility model. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof structure for a pipe jacking joint, comprising a connecting pipe (1) and a pipe jacking body (2), characterized in that: The top end of the connecting tube (1) is fixedly connected to a fixing tube (3), the top end of the fixing tube (3) is fixedly connected to a top tube body (2), the side end of the top tube body (2) is fixedly connected to a sealing ring (12), the sealing ring (12) is located at the connection between the top body and the fixing tube (3), the side end of the top tube body (2) is fixedly connected to a limiting ring (10), the top end of the connecting tube (1) is slidably connected to a plurality of compensation plates (7), the top end of the connecting tube (1) is provided with a plurality of sliding grooves (4), the sliding grooves (4) are arranged in an annular shape with the fixing tube (3) as the center, the inner side wall of the compensation plate (7) is fixedly connected to an extrusion plate (9), the middle of the fixing tube (3) is sleeved with an extrusion ring (5), the right side of the extrusion ring (5) is fixedly connected to a plurality of plug-in plates (6), and the middle of the fixing tube (3) is sleeved with a compensation rubber tube (13).

2. A waterproof structure for a pipe jacking joint according to claim 1, characterized in that: The compensation plate (7) is an arc-shaped structure, and a plurality of the compensation plates (7) form a ring-shaped structure, with two adjacent compensation plates (7) abutting against each other.

3. A waterproof structure for a pipe jacking joint according to claim 1, characterized in that: The outer side wall of the compensation plate (7) is an inclined structure, and the thickness of the compensation plate (7) gradually decreases from left to right.

4. A waterproof structure for a pipe jacking joint according to claim 1, characterized in that: A sliding plate (8) is fixedly connected to the side end of the compensation plate (7), and the sliding plate (8) is slidably connected in the sliding groove (4).

5. The waterproof structure of a pipe jacking joint according to claim 1, characterized in that: The left side of the extrusion ring (5) is an inclined structure, the lower corner of the extrusion plate (9) is an inclined structure, and the lower end of the extrusion plate (9) abuts against the extrusion ring (5).

6. A waterproof structure for a pipe jacking joint according to claim 1, characterized in that: The top end of the limiting ring (10) is provided with a plurality of plug-in slots (11), and the plug-in board (6) is plugged into the plug-in slots (11).

7. A waterproof structure for a pipe jacking joint according to claim 1, characterized in that: One end of the compensating rubber tube (13) abuts against the sealing ring (12), and the other end of the compensating rubber tube (13) abuts against the side end of the extrusion ring (5).

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