Municipal engineering pipe jacking construction pipe joint waterproof structure

Abstract

The utility model provides a municipal engineering pipe jacking construction pipe joint waterproof structure which comprises a pipe body, a connecting groove is formed in the outer side of the front end of the pipe body, a conical block is connected to the inner side of the front end of the pipe body, a locking block is connected to the front end of the conical block, and a plurality of locking devices are arranged on the outer side of the locking block; the rear end of the pipe body is connected with a connecting block, a conical groove is formed in the center of the rear end of the pipe body, a locking groove is formed in the top end of the conical groove, and a movable lug groove is formed in the center of the locking groove. According to the municipal engineering pipe jacking construction inter-pipe-joint waterproof structure, by arranging the conical blocks, the conical grooves, the locking devices and other structures, the effects of enhancing the pipeline sealing performance, ensuring tight connection between the adjacent pipe joints and preventing disengagement can be achieved; the joint of the two pipe bodies is smooth, so that other pipelines can be laid conveniently; the locking device does not need to be aligned, and butt joint and locking work of the two pipe bodies can be easily completed under the guidance of the conical block and the conical groove.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking technology, and more specifically, to a waterproof structure for pipe sections in municipal engineering pipe jacking construction. Background Technology

[0002] Pipe jacking technology is a trenchless pipeline laying technology used in municipal construction. It has little or no impact on the surrounding environment, requires a small construction site, and generates little noise. Pipe jacking is an underground pipeline construction method developed after shield tunneling. It does not require excavation of the surface layer and can cross highways, railways, rivers, surface buildings, underground structures, and various underground pipelines. Pipe jacking uses the thrust of the main jacking cylinder and intermediate stations between pipelines to push the tool pipe or tunneling machine from the working shaft through the soil layer to the receiving shaft and lift it out. At the same time, the pipeline following the tool pipe or tunneling machine is buried between the two shafts to achieve trenchless underground pipeline laying. When multiple jacking pipes are pushed into the ground, the joint between two jacking pipes needs to withstand great pressure, and the two jacking pipes are prone to misalignment. This leads to the leakage of sewage from the soil at the joint between the two jacking pipes, causing inconvenience to the workers.

[0003] Regarding the aforementioned problem of sewage leakage into the soil at the joint of two existing jacking pipes, extensive research revealed a patent publication number CN218063636U for a waterproof structure between pipe sections in municipal engineering jacking construction. This structure includes a first pipe body and a second pipe body. Multiple triangular blocks and multiple triangular-shaped blocks are fixedly connected to the inner walls of both pipe bodies. The triangular blocks are fitted together, and a limiting mechanism is provided between adjacent triangular blocks. This limiting mechanism includes a square rod fixedly connected to the front end of each triangular block, which movably passes through the block, and a groove is provided at its upper end. The beneficial effect of this invention is that it improves the sealing at the joint of two jacking pipes when they are pushed into the ground, and the two pipes can be fixedly connected together easily, preventing misalignment and thus preventing sewage leakage into the soil at the joint, providing convenience for workers. However, the technical solution provided by this patent has the following problems:

[0004] (1) The triangular block on the device will interfere with the subsequent laying of other devices in the pipeline. If other small pipes need to be laid in the pipeline, when the small pipes are sent from one end to the other end, the small pipes will hit the triangular block, causing the small pipes to be unable to continue to be sent into the device. The position of the small pipes needs to be readjusted, which will affect the construction efficiency.

[0005] (2) The device requires the pipe to be rotated to a certain position so that the square rod can be inserted into the rectangular groove. Because the pipes used in municipal engineering pipe jacking are generally long and heavy, it is inconvenient to rotate the pipes when connecting the two pipes, which makes the construction of connecting pipes more difficult.

[0006] This invention can enhance the sealing of pipelines, ensure a tight connection between adjacent pipe sections, and prevent detachment. Summary of the Invention

[0007] The present invention aims to solve the technical problems mentioned in the background art and provide a waterproof structure between pipe sections in municipal engineering pipe jacking construction, so as to enhance the sealing of the pipeline, ensure the tight connection between adjacent pipe sections and prevent detachment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof structure for pipe sections in municipal engineering pipe jacking construction, comprising: a pipe body, characterized in that: a connecting groove is provided on the outer side of the front end of the pipe body, a conical block is connected to the inner side of the front end of the pipe body, a locking block is connected to the front end of the conical block, and a plurality of locking devices are arranged on the outer side of the locking block; a connecting block is connected to the rear end of the pipe body, a conical groove is provided in the center of the rear end of the pipe body, a locking groove is provided at the top of the conical groove, and a movable tongue groove is provided in the center of the locking groove.

[0009] A further preferred embodiment: the size of the conical block is slightly larger than the size of the conical groove.

[0010] A further preferred embodiment: the locking device includes: a movable tongue, a mounting groove and a spring; a mounting groove is provided on the side wall of the outer side of the locking block, a spring is connected in the center of the mounting groove, and the other end of the spring is connected to the movable tongue.

[0011] A further preferred embodiment: the mounting groove position matches the movable tongue groove position, and the movable tongue body size matches the movable tongue groove size.

[0012] A further preferred embodiment: There are four locking devices, which are arranged equidistantly around the outside of the locking block.

[0013] A further preferred embodiment: a first sealing ring is installed at the rear end of the connecting groove, and a second sealing ring is installed at the bottom end of the pipe body.

[0014] A further preferred embodiment: the first sealing ring and the second sealing ring are made of rubber. Beneficial effects

[0015] 1. By incorporating a conical block and a conical groove, the pipe's sealing performance is enhanced. When the conical block is pushed into the conical groove, because the size of the conical block is slightly larger than that of the conical groove, the conical block is compressed inward, generating an outward pressure to return to its original shape. The conical groove is compressed outward, generating an inward compressive force to return to its original shape. Under the combined action of the outward pressure of the conical block and the compressive force within the conical groove, the conical block and the conical groove can fit tightly together, thereby enhancing the pipe's sealing performance.

[0016] 2. By setting a locking device, the tight connection and anti-detachment effect between adjacent pipe sections are achieved; when the locking device is pushed into another pipe section, the movable tongue will first be pressed into the installation groove under the action of the conical groove. As the locking block reaches the predetermined position, the movable tongue will pop out under the push of the spring and then lock onto the movable tongue groove, locking the two pipe sections, so as to achieve a tight connection between adjacent pipe sections and prevent detachment.

[0017] 3. In summary, this type of waterproof structure for pipe sections in municipal engineering pipe jacking construction, through the installation of conical blocks, conical grooves, and locking devices, can enhance the sealing of the pipe, ensure a tight connection between adjacent pipe sections, and prevent detachment. Furthermore, the connection between the two pipe bodies is smooth, facilitating the laying of other pipes. The locking device does not require alignment; guided by the conical blocks and conical grooves, the docking and locking of the two pipe bodies can be easily completed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a three-dimensional sectional view of the tube body of this utility model.

[0020] Figure 3 This is a cross-sectional view of the two connecting pipe bodies of this utility model.

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram of point A.

[0022] Figure 1-4 In the middle: 1. Pipe body; 2. Connecting groove; 3. Locking device; 4. Locking block; 5. Conical block; 6. Live tongue groove; 7. Conical groove; 8. Connecting block; 9. Locking groove; 10. First sealing ring; 11. Second sealing ring; 301. Live tongue body; 302. Mounting groove; 303. Spring. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0024] Please see Figure 1-4 In this embodiment of the present invention, a waterproof structure between pipe sections for municipal engineering pipe jacking construction includes: a pipe body 1, which is the basic part of the entire system; a connecting groove 2 located on the outer side of the front end of the pipe body 1, used to cooperate with the connecting block 8 of the adjacent pipe body 1 to form a physical connection and provide initial positioning; a conical block 5 located on the inner side of the front end of the pipe body 1, which helps to guide the connecting block 8 of the adjacent pipe section to enter smoothly and plays a certain sealing role; a locking block 4 connected to the front end of the conical block 5, used to enhance the connection strength between pipe sections; and a locking device 3 arranged on the outer side of the locking block 4, used to ensure... The system ensures a tight connection and prevents detachment between adjacent pipe sections. The connecting block 8 is located at the rear end of the pipe body 1 and is inserted into the connecting groove 2 at the front end of the adjacent pipe body 1 to achieve a physical connection between the two pipe body sections 1. The conical groove 7 is located at the center of the rear end of the pipe body 1 and matches the conical block 5 at the front end to ensure alignment and sealing during connection. The locking groove 9 is located at the top of the conical groove 7 and is used to accommodate and fix the locking block 4 on the adjacent pipe body 1 to enhance the firmness of the connection. The movable tongue groove 6 is located in the center of the locking groove 9 and is used to cooperate with the locking device 3 to lock the pipe body 1 to ensure a tight connection between adjacent pipe sections.

[0025] In this embodiment of the invention, the size of the conical block 5 is slightly larger than the size of the conical groove 7, thereby enhancing the sealing performance of the pipe. When the conical block 5 is pushed into the conical groove 7, because the size of the conical block 5 is slightly larger than the size of the conical groove 7, the conical block 5 is compressed inward, and in order to restore its original shape, it generates an outward pressure. The conical groove 7 is compressed outward, and in order to restore its original shape, it generates an inward compressive force. Under the action of the outward pressure of the conical block 5 and the compressive force inside the conical groove 7, the conical block 5 and the conical groove 7 can fit tightly together.

[0026] In this embodiment of the invention, the locking device 3 includes: a movable tongue 301, a mounting groove 302, and a spring 303; a mounting groove 302 is provided on the outer side wall of the locking block 4, and a spring 303 is connected to the center of the mounting groove 302. The other end of the spring 303 is connected to the movable tongue 301, thereby ensuring a tight connection and preventing detachment between adjacent pipe sections; the movable tongue 301 is used to lock the pipe body 1; and the mounting groove 302 provides mounting space for the movable tongue 301 and the spring 303. The positional effect; the spring 303 is provided to push the movable tongue 301 against the locking groove 9, thereby ensuring that the movable tongue 301 can lock the tube 1; when the locking device 3 is pushed into another tube 1, the movable tongue 301 will first be pressed into the mounting groove 302 under the action of the tapered groove 7. As the locking block 4 reaches the predetermined position, the movable tongue 301 will pop out under the push of the spring 303, and then lock onto the movable tongue groove 6, locking the two tube 1, so as to make the adjacent tube sections tightly connected and prevent them from falling off.

[0027] In this embodiment of the utility model, the mounting groove 302 is aligned with the movable tongue groove 6, and the size of the movable tongue 301 is aligned with the size of the movable tongue groove 6, thereby ensuring that the movable tongue 301 can be locked in the movable tongue groove 6.

[0028] In this embodiment of the utility model, there are four locking devices 3, which are arranged equidistantly around the outside of the locking block 4; this achieves the effect of ensuring that adjacent pipe sections 1 can be locked together. Multiple locking devices 3 can ensure that even if individual locking devices 3 are damaged, the adjacent pipe sections can still be locked together.

[0029] In this embodiment of the utility model, a first sealing ring 10 is installed at the rear end of the connecting groove 2, and a second sealing ring 11 is installed at the bottom end of the tube body 1, so as to increase the sealing and waterproofing capabilities. When the connecting block 8 moves into the connecting groove 2, it will squeeze the first sealing ring 10, so that the first sealing ring 10 can press the inner wall of the connecting groove 2. At the same time, the tube body 1 will also squeeze the second sealing ring 11, so that the sealing performance at the connection between the two tube bodies 1 is enhanced.

[0030] In this embodiment of the invention, the first sealing ring 10 and the second sealing ring 11 are made of rubber, achieving both good sealing effect and low price.

[0031] Working principle: When two pipe bodies 1 are connected, firstly, the rear pipe body 1 is pushed forward by the machine, causing the locking block 4 to enter the front pipe body 1. Then, the movable tongue 301 is pressed into the mounting groove 302 under the action of the conical groove 7. As the locking block 4 reaches the predetermined position, the movable tongue 301 will pop out under the push of the spring 303 and then lock onto the movable tongue groove 6, locking the two pipe body sections 1, making the adjacent pipe sections tightly connected and preventing them from falling off. At the same time, when the conical block 5 is pushed into the conical groove 7, because the size of the conical block 5 is slightly larger than the size of the conical groove 7, the conical block 5 is squeezed inward and deformed. In order to restore its original shape, it will generate an outward pressure. The conical groove 7 is squeezed outward and expands. The deformation of the conical block 5, in order to restore its original shape, generates an inward squeezing force. Under the action of the outward pressure of the conical block 5 and the squeezing force in the conical groove 7, the conical block 5 and the conical groove 7 can fit tightly together, thereby enhancing the pipe sealing performance. Then, the connecting block 8 will move into the connecting groove 2 and squeeze the first sealing ring 10, so that the first sealing ring 10 can press the inner wall of the connecting groove 2. At the same time, the pipe body 1 will also squeeze the second sealing ring 11, thereby enhancing the sealing performance at the connection between the two pipe bodies 1. This connection method makes the connection between the two pipe bodies 1 smooth, which is convenient for laying other pipes. The locking device 3 does not need to be aligned. Under the guidance of the conical block 5 and the conical groove 7, the docking and locking work of the two pipe bodies 1 can be easily completed.

Claims

1. A waterproof structure for pipe sections used in municipal engineering pipe jacking construction, comprising: The tube body (1) is characterized in that: a connecting groove (2) is provided on the outer side of the front end of the tube body (1), a conical block (5) is connected to the inner side of the front end of the tube body (1), a locking block (4) is connected to the front end of the conical block (5), and a plurality of locking devices (3) are arranged on the outer side of the locking block (4); a connecting block (8) is connected to the rear end of the tube body (1), a conical groove (7) is provided in the center of the rear end of the tube body (1), a locking groove (9) is provided at the top of the conical groove (7), and a movable tongue groove (6) is provided in the center of the locking groove (9).

2. The waterproof structure between pipe sections in municipal engineering pipe jacking construction according to claim 1, characterized in that: The size of the conical block (5) is slightly larger than the size of the conical groove (7).

3. The waterproof structure between pipe sections in municipal engineering pipe jacking construction according to claim 1, characterized in that: The locking device (3) includes: a movable tongue (301), a mounting groove (302) and a spring (303); the mounting groove (302) is provided on the side wall of the outer side of the locking block (4), and a spring (303) is connected in the center of the mounting groove (302), and the other end of the spring (303) is connected to the movable tongue (301).

4. A waterproof structure for pipe sections in municipal engineering pipe jacking construction according to claim 3, characterized in that: The mounting groove (302) is positioned to match the position of the movable tongue groove (6), and the size of the movable tongue body (301) matches the size of the movable tongue groove (6).

5. A waterproof structure for pipe sections in municipal engineering pipe jacking construction according to claim 4, characterized in that: There are four locking devices (3), which are arranged equidistantly around the outside of the locking block (4).

6. A waterproof structure for pipe sections in municipal engineering pipe jacking construction according to claim 1, characterized in that: The connecting groove (2) has a first sealing ring (10) installed at its rear end, and the tube body (1) has a second sealing ring (11) installed at its bottom end.

7. A waterproof structure for pipe sections in municipal engineering pipe jacking construction according to claim 6, characterized in that: The first sealing ring (10) and the second sealing ring (11) are made of rubber.

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