Portable waterproof leaking stoppage device for tunnel construction

By designing a portable waterproof and leak-stopping device with a rotatable plate and screw, the problems of high fixing difficulty and poor stability of traditional devices are solved, achieving efficient and stable leak-stopping effect in tunnel construction, and maintaining smooth water flow when pipelines corrode and break.

CN224017971UActive Publication Date: 2026-03-20GUANGZHOU NO 2 MUNICIPAL ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Traditional waterproofing and leak-stopping devices are difficult to fix in tunnel construction, have low installation efficiency, and are prone to slippage or pipe damage on high water pressure or severely corroded pipes, affecting maintenance efficiency and stability.

Method used

A portable waterproof and leak-stopping device was designed, which adopts a rotatable rotating plate and screw structure to simplify the bolt fixing process. The stability and adaptability of the device are adjusted by the support and extension tube, which increases the airtightness and pressure relief function and adapts to different installation environments.

Benefits of technology

It improves the installation efficiency and stability of the device, reduces the difficulty of fixing, enhances the reliability of use in high water pressure and corrosive environments, reduces the risk of pipeline damage, and can still deliver water normally when the pipeline is corroded and broken.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224017971U_ABST
    Figure CN224017971U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of leaking stoppage devices, and discloses a portable waterproof leaking stoppage device for tunnel construction, which comprises a first sealing element and a second sealing element which are symmetrically arranged, the two symmetrical sides of the first sealing element are rotatably connected with a plurality of rotating plates, the rotating plates are rotatably connected with screw rods, the screw rods are connected with movable screw rings in a screwing manner, and the screw rings are connected with the first sealing element and the second sealing element in a screwing manner. After the first sealing piece and the second sealing piece are placed on the two sides of the pipeline, the rotating plate is pulled to rotate around the first sealing piece, the screw rod is clamped with the second side groove, the screw ring is rotated, the screw ring and the screw rod abut against the first sealing piece and the second sealing piece, and therefore the first sealing piece and the second sealing piece are sealed. Therefore, the first sealing piece and the second sealing piece wrap the pipeline leakage position, when a worker installs the device, bolts do not need to be inserted into the device one by one, the fixing difficulty of the device is lowered, and the installation efficiency of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of leaking stoppage device, specifically relates to a portable waterproof leaking stoppage device for tunnel construction. BACKGROUND

[0002] In the construction process of tunnels and underground projects, some pipelines will leak due to long-term disrepair and material corrosion. In order to avoid pipeline leakage, the pipeline needs to be repaired. However, due to the particularity of the tunnel construction environment, such as complex geological conditions, abundant underground water, and narrow construction space, the waterproof leaking stoppage work faces many challenges. Traditional waterproof leaking stoppage methods rely on manual operation, such as using waterproof coating, waterproof roll material, and other materials for plugging. These methods have problems such as low construction efficiency, complex operation, material waste, and unstable leaking stoppage effect. In order to improve the repair efficiency and convenience, a Haaf joint device appears. When using the device, it only needs to be fixed on both sides of the pipeline leakage point and make the leakage point inside the device to repair the pipeline. However, when fixing the device, the two parts of the device need to be wrapped on both sides of the pipeline in turn, and then the bolts are passed through the two parts of the device for fixation. If the water pressure of the pipeline leakage point is strong, the water body will directly push the device down when the personnel place the device. Therefore, the personnel need to press the two devices after placing the device, and then align the holes between the two parts with the bolts and fix them. The fixation difficulty is high, the installation efficiency is low, and due to the certain weight of the device itself, if the pipeline corrosion is serious, the device installed will easily cause the pipeline near the device to break, increasing the probability of pipeline damage in the later period. SUMMARY

[0003] The utility model aims at providing a portable waterproof leaking stoppage device for tunnel construction to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portable waterproof leaking stoppage device for tunnel construction, comprising a first sealing element and a second sealing element symmetrically arranged along the length direction of the pipeline, an installation cavity for resisting the pipeline is formed between the first sealing element and the second sealing element, and a plurality of rotating plates are rotationally connected to both sides of the first sealing element symmetrically along the length direction of the first sealing element, a screw rod is rotationally connected to the rotating plate, a movable screw ring is screwingly connected to the screw rod, a plurality of second side grooves are formed on both sides of the second sealing element symmetrically along the length direction of the second sealing element, and the second side grooves are matched with the screw rods one by one.

[0005] Preferably, the outer circumferential surface of the first sealing element is fixedly connected with a base frame, a supporting element for supporting the first sealing element is rotationally connected to the base frame, and the free end of the screw rod is fixedly connected with a blocking rod.

[0006] Preferably, the support comprises a rotating head, which is rotationally connected to the inner side of the base frame, and a bottom pipe fixedly connected to the peripheral surface of the rotating head, a limiting rod is installed between the rotating head and the base frame, and a connecting ring is screwingly connected to one end of the limiting rod.

[0007] Preferably, the free end of the bottom pipe is recessed to form a first connecting hole, a detachable connecting rod is screwingly connected to the inside of the first connecting hole, an extension pipe is fixedly connected to the free end of the connecting rod, the free end of the extension pipe is recessed to form a second connecting hole, and the second connecting hole is matched with the connecting rod.

[0008] Preferably, the first sealing member comprises a first side pipe, a first recess is recessed to one side of the first side pipe towards the second sealing member, and a first side groove is recessed to the symmetrical two sides of the peripheral surface of the first side pipe, and the rotating plate is rotationally connected to the inside of the first side groove.

[0009] Preferably, a first sealing gasket is arranged in the inside of the first recess, and a first annular groove is recessed to the inner wall of the first sealing gasket.

[0010] Preferably, the second sealing member comprises a second side pipe, a second recess is recessed to one side of the second side pipe towards the first side pipe, and a second side groove is formed to the symmetrical two sides of the peripheral surface of the second side pipe.

[0011] Preferably, a second sealing gasket is arranged to the inner wall of the second recess, and a second annular groove is recessed to the inner wall of the second sealing gasket.

[0012] Preferably, a pressure relief pipe is fixedly connected to the peripheral surface of the second side pipe, the pressure relief pipe is in communication with the inside of the second side pipe, and a valve is installed to one side of the pressure relief pipe.

[0013] Preferably, a connecting pipe is fixedly connected to the side of the pressure relief pipe away from the second side pipe, a water guide is arranged to one side of the connecting pipe, the water guide comprises a water delivery pipe, and connecting heads are fixedly connected to the two ends of the water delivery pipe, and the connecting heads are matched with the connecting pipe.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) The utility model discloses a rotatable rotating plate, which is used when the first sealing member and the second sealing member are placed on both sides of the pipeline.

[0016] (2)The utility model discloses a rotatable head and bottom pipe are set up, through the rotatable head and base frame are connected, and the limiting rod is inserted between the base frame and rotatable head, and the connecting ring is screwing connection with the limiting rod, rotatable head and bottom pipe are fixed in the position of personnel need, and the bottom pipe is resisted other objects, thereby supporting the device, not only improve the stability of the device work time, also reduce the burden of pipeline installation position.

[0017] (3)The utility model discloses a extension pipe and connecting rod are set up, through the connecting rod and second connecting hole screwing connection, let personnel need number of extension pipe head and tail connection, through the connecting rod and first connecting hole screwing connection, make the extension pipe of adjusting length and bottom pipe connect, thereby let bottom pipe support the adjustment range of first side pipe and second side pipe further increase, further increase the use range of device.

[0018] (4)The utility model discloses a water pipe and pressure relief pipe are set up, through the connecting head of water pipe both ends and pressure relief pipe screwing connection, thereby let two pressure relief pipe intercommunication, when the pipeline corrosion fracture near the pipeline leakage position, also can normal water body transportation, need not waste long time cutting pipeline and maintain. DRAWINGS

[0019] Figure 1 It is one of the perspective view of the utility model;

[0020] Figure 2 It is the second perspective view of the utility model;

[0021] Figure 3 It is the third perspective view of the utility model;

[0022] Figure 4 It is one of the perspective view of the first sealing element of the utility model;

[0023] Figure 5 It is the second perspective view of the first sealing element of the utility model;

[0024] Figure 6 It is one of the perspective view of the second sealing element of the utility model;

[0025] Figure 7 It is the second perspective view of the second sealing element of the utility model;

[0026] Figure 8 It is one of the perspective view of the support element of the utility model;

[0027] Figure 9 It is the second perspective view of the support element of the utility model;

[0028] Figure 10 It is the perspective view of the water guide element of the utility model.

[0029] In the figure: 1, the first sealing element; 11, the first side pipe; 12, the first groove; 13, the first side groove; 14, the rotating plate; 15, the screw rod; 16, the screw ring; 17, the blocking rod; 18, the first sealing gasket; 19, the first annular groove; 110, the base frame; 2, the second sealing element; 21, the second side pipe; 22, the second groove; 23, the second side groove; 24, the second annular groove; 25, the connecting pipe; 26, the pressure relief pipe; 27, the valve; 28, the second sealing gasket; 3, the support element; 31, the rotating head; 32, the limiting rod; 33, the connecting ring; 34, the bottom pipe; 35, the extension pipe; 36, the connecting rod; 37, the first connecting hole; 38, the second connecting hole; 4, the water guide element; 41, the water delivery pipe; 42, the connecting head; 110, the base frame. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to Figures 1-10 The utility model provides the following technical schemes:

[0032] A portable waterproof leaking stoppage device for tunnel construction, in order to wrap the pipeline, the device comprises the first sealing element 1 and the second sealing element 2 that are symmetrically arranged along the length direction of the pipeline, and an installation cavity that abuts against the pipeline is formed between the first sealing element 1 and the second sealing element 2.

[0033] And, in the utility model, when the first sealing element 1 and the second sealing element 2 are wrapped to the two sides of the pipeline, in order to facilitate the fixation of the first sealing element 1 and the second sealing element 2 on the pipeline, personnel need not waste time to align each bolt, such as Figures 1-5 As shown, and the first sealing element 1 is rotatably connected with a plurality of rotating plates 14 on the two sides symmetrically along the length direction of the first sealing element 1, the screw rod 15 is rotatably connected on the rotating plate 14, the screw ring 16 that can move is screw-connected on the screw rod 15, the second sealing element 2 is provided with a plurality of second side grooves 23 on the two sides symmetrically along the length direction of the second sealing element 2, and the second side groove 23 is matched with the screw rod 15 one by one.

[0034] Through the technical scheme, when a person needs to repair the pipeline leakage, the second sealing element 2 is placed on one side of the pipeline leakage, and the first sealing element 1 is placed on the other side of the pipeline leakage, so that the second sealing element 2 and the first sealing element 1 wrap the leakage, the screw rod 15 is pulled to drive the rotating plate 14 to rotate around the first sealing element 1, until the screw rod 15 is clamped into the second side groove 23 on the second sealing element 2, and then the screw ring 16 on the screw rod 15 is rotated to move the screw ring 16 relative to the screw rod 15, until the screw ring 16 abuts against the second sealing element 2, so that the second sealing element 2 and the first sealing element 1 are fixed on the pipeline, and the leakage of the pipeline is wrapped by the second sealing element 2 and the first sealing element 1, so that the repair of the pipeline is completed, and the person does not need to insert the bolts one by one between the first sealing element 1 and the second sealing element 2, the installation difficulty of the second sealing element 2 and the first sealing element 1 is reduced, and the installation efficiency of the second sealing element 2 and the first sealing element 1 is improved.

[0035] When the first sealing element 1 and the second sealing element 2 are fixed on the pipeline, in order to reduce the burden of the pipeline and support the device, as shown in Figures 1-3 , the outer circumferential surface of the first sealing element 1 is fixedly connected with a base frame 110, the base frame 110 is rotatably connected with a support element 3 for supporting the first sealing element 1, and the free end of the screw rod 15 is fixedly connected with a blocking rod 17.

[0036] In this embodiment, when the second sealing element 2 and the first sealing element 1 are installed on the pipeline, the support element 3 is taken, the support element 3 is placed on one side of the first sealing element 1, and the other end of the support element 3 is abutted against other objects, so as to support the second sealing element 2 and the first sealing element 1, so that the second sealing element 2 and the first sealing element 1 are more stable after installation, the burden of the pipeline at the installation position of the second sealing element 2 and the first sealing element 1 is reduced, and the probability of damage of the pipeline is reduced.

[0037] Specifically, in an embodiment, regarding the above-mentioned support element 3, as shown in Figure 8 , the support element 3 comprises a rotating head 31 rotatably connected to the inner side of the base frame 110, and the circumferential surface of the rotating head 31 is fixedly connected with a bottom pipe 34, a limiting rod 32 is installed between the rotating head 31 and the base frame 110, and one end of the limiting rod 32 is screw-connected with a connecting ring 33.

[0038] In the embodiment, after the personnel install the second seal 2 and the first seal 1 on the pipeline, the personnel need to take the number of the bottom pipe 34, place the bottom pipe 34 on one side of the base frame 110, and insert the rotating head 31 into the inside of the base frame 110, then insert the limiting rod 32 between the rotating head 31 and the base frame 110, screw the connecting ring 33 with the limiting rod 32, pull the bottom pipe 34, and drive the rotating head 31 to rotate around the base frame 110, so as to adjust the position of the bottom pipe 34, until the bottom pipe 34 contacts with other objects, tighten the connecting ring 33, and make the connecting ring 33 abut against the base frame 110, so as to fix the bottom pipe 34 at the position required by the personnel, support the first seal 1 and the second seal 2 through the bottom pipe 34, make the first seal 1 and the second seal 2 more fastened after being installed on the pipeline, and further improve the stability of the first seal 1 and the second seal 2 during tooling.

[0039] When the personnel connect the bottom pipe 34 with the base frame 110, due to different installation heights of the device, in order to adjust according to the installation height of the device, as shown in Figures 8-9 The free end of the bottom pipe 34 is recessed to form a first connecting hole 37, a detachable connecting rod 36 is screw-connected in the inside of the first connecting hole 37, an extension pipe 35 is fixedly connected to the free end of the connecting rod 36, a second connecting hole 38 is recessed in the free end of the extension pipe 35, and the second connecting hole 38 is matched with the connecting rod 36.

[0040] In the embodiment, when the personnel uses the device, first, the second sealing element 2 and the first sealing element 1 are installed on the pipeline, and how to install the second sealing element 2 and the first sealing element 1, the installation process is the same as the above-mentioned embodiment, and thus is not described here. The personnel needs a number of extension pipes 35, places the extension pipe 35 at one end of another extension pipe 35, and makes the connecting rod 36 at one end of the extension pipe 35 screw with the second connecting hole 38 on the other extension pipe 35, so that the two extension pipes 35 are connected end to end. According to the above steps, the extension pipes 35 needed by the personnel are connected in sequence, so that the length adjustment of the extension pipe 35 is completed. Then, the extension pipe 35 with the adjusted length is screw-connected with the first connecting hole 37 at the bottom of the bottom pipe 34 through the connecting rod 36, so that the extension pipe 35 with the adjusted length is fixed on the bottom pipe 34. Then, the rotating head 31 is inserted into the inside of the base frame 110, and then the limiting rod 32 is inserted between the rotating head 31 and the base frame 110, and the connecting ring 33 is screw-connected with the limiting rod 32. The bottom pipe 34 is pulled, so that the bottom pipe 34 drives the rotating head 31 to rotate around the base frame 110, so that the position of the bottom pipe 34 is adjusted, and then the position of the extension pipe 35 is adjusted, until the extension pipe 35 contacts with other objects. The connecting ring 33 is tightened, so that the connecting ring 33 abuts against the base frame 110, and the extension pipe 35 is fixed at the position needed by the personnel. The first sealing element 1 and the second sealing element 2 are supported by the extension pipe 35 and the bottom pipe 34, so that the first sealing element 1 and the second sealing element 2 are more firmly installed on the pipeline after being installed on the pipeline.

[0041] In the embodiment, how to install the first sealing element 1 on the pipeline is as follows. Figures 1-5 As shown in the figure, the first sealing element 1 comprises a first side pipe 11. The side of the first side pipe 11 facing the second sealing element 2 is concave to form a first groove 12. The outer circumferential surface of the first side pipe 11 is concave on both sides to form a first side groove 13. A rotating plate 14 is rotatably connected to the inside of the first side groove 13.

[0042] In the embodiment, when the personnel needs to install the first sealing element 1 and the second sealing element 2, the second sealing element 2 is placed on one side of the pipeline leakage, and then the first side pipe 11 is placed on the other side of the pipeline leakage, so that the second sealing element 2 and the first side pipe 11 wrap the leakage. The screw rod 15 is pulled, so that the screw rod 15 drives the rotating plate 14 to rotate around the first side groove 13 on the first side pipe 11, until the screw rod 15 is clamped into the second side groove 23 on the second sealing element 2. Then, the screw ring 16 on the screw rod 15 is rotated, so that the screw ring 16 moves relative to the screw rod 15, until the screw ring 16 abuts against the second sealing element 2. The screw ring 16 and the screw rod 15 abut against the first side pipe 11 and the second sealing element 2, so that the first side pipe 11 and the second sealing element 2 are fixed on the pipeline. The leakage of the pipeline is wrapped by the first side pipe 11 and the second sealing element 2, so that the pipeline is repaired.

[0043] When the first side pipe 11 is installed on the pipeline, in order to increase the air tightness after the device is fixed, as shown in Figures 4-5 , the inner wall of the first groove 12 is provided with a first sealing gasket 18, and the inner wall of the first sealing gasket 18 is recessed to form a first annular groove 19.

[0044] In this embodiment, the first sealing gasket 18 is supported by the first groove 12 on the first side pipe 11, and the sealing between the first side pipe 11 and the second sealing member 2 is increased by the first sealing gasket 18 after the first side pipe 11 and the second sealing member 2 are fixed on the pipeline, thereby ensuring the stability of the pipeline after repair.

[0045] Specifically, in an embodiment, as shown in Figures 1-3 , Figures 6-7 , the second sealing member 2 includes a second side pipe 21, the second side pipe 21 is recessed on one side facing the first side pipe 11 to form a second groove 22, and a second side groove 23 is formed on the outer circumferential surface of the second side pipe 21 on both sides symmetrically.

[0046] In this embodiment, when a person needs to install the first sealing member 1 and the second sealing member 2, the second side pipe 21 is placed on one side of the pipeline leakage, and the first side pipe 11 is placed on the other side of the pipeline leakage, so that the second side pipe 21 and the first side pipe 11 wrap the leakage, the screw rod 15 is pulled to drive the rotating plate 14 to rotate around the first side groove 13 on the first side pipe 11, until the screw rod 15 is engaged into the second side groove 23 on the second side pipe 21, and then the screw ring 16 on the screw rod 15 is rotated to move the screw ring 16 relative to the screw rod 15, until the screw ring 16 abuts against the second side pipe 21, so that the screw ring 16 and the screw rod 15 abut against the first side pipe 11 and the second side pipe 21, thereby fixing the first side pipe 11 and the second side pipe 21 on the pipeline, and wrapping the leakage of the pipeline by the first side pipe 11 and the second side pipe 21, thereby completing the repair of the pipeline.

[0047] When the second side pipe 21 is installed on the pipeline, in order to increase the air tightness after the device is fixed, as shown in Figures 4-5 , the inner wall of the second groove 22 is provided with a second sealing gasket 28, and the inner wall of the second sealing gasket 28 is recessed to form a second annular groove 24.

[0048] In this embodiment, the second sealing gasket 28 is supported by the second groove 22 on the second side pipe 21, and the sealing between the first side pipe 11 and the second side pipe 21 is increased by the first sealing gasket 18 after the first side pipe 11 and the second side pipe 21 are fixed on the pipeline, thereby ensuring the stability of the pipeline after repair.

[0049] When the personnel install the first side pipe 11 and the second side pipe 21 to the pipeline, in order to let the water pressure release conveniently, reduce the installation difficulty, as shown in Figures 1-3 、 Figures 6-7 The outer circumferential surface of the second side pipe 21 is fixedly connected with a pressure relief pipe 26, the pressure relief pipe 26 is communicated with the inside of the second side pipe 21, and one side of the pressure relief pipe 26 is provided with a valve 27.

[0050] In the embodiment, when the personnel need to install the first side pipe 11 and the second side pipe 21, the valve 27 on the pressure relief pipe 26 is opened, then the first side pipe 11 and the second side pipe 21 are placed on both sides of the pipeline at the leakage position, the screw rod 15 is pulled, the screw rod 15 drives the rotating plate 14 to rotate around the first side groove 13 on the first side pipe 11, until the one side of the screw rod 15 is clamped into the second side groove 23 on the second side pipe 21, then the screw ring 16 on the screw rod 15 is rotated, the screw ring 16 is moved relative to the screw rod 15, the screw ring 16 and the screw rod 15 abut against the first side pipe 11 and the second side pipe 21, so that the first side pipe 11 and the second side pipe 21 are fixed to the pipeline, after the first side pipe 11 and the second side pipe 21 are fixed, the valve 27 on the pressure relief pipe 26 is closed.

[0051] If the personnel install the device to the pipeline, if the pipeline has more than two leakage points, and the pipeline between the two leakage points has a high probability of breaking, in order to let the personnel not waste a long time to cut the pipeline for maintenance, and not to stop a long time for water supply, as shown in Figures 1-3 and Figure 10 The side, away from the second side pipe 21, of the pressure relief pipe 26 is fixedly connected with a connecting pipe 25, one side of the connecting pipe 25 is provided with a water guide 4, the water guide 4 comprises a water conveying pipe 41, both ends of the water conveying pipe 41 are fixedly connected with connecting heads 42, the connecting heads 42 are matched with the connecting pipe 25.

[0052] In the embodiment, when the pipeline near the leakage position is easy to corrode and break, the first side pipe 11 and the second side pipe 21 are fixed to one side of the pipeline at the leakage position according to the above-mentioned mode, then the first side pipe 11 and the second side pipe 21 are fixed to the other side of the pipeline at the leakage position, the water conveying pipe 41 is placed between the two pressure relief pipes 26, and the two connecting heads 42 on the water conveying pipe 41 are respectively screwed with the two pressure relief pipes 26, the valves 27 on the two pressure relief pipes 26 are opened, so that the liquid in the pipeline flows through the water conveying pipe 41, so that the pipeline can work normally after corroding and breaking, without wasting time to cut the pipeline for maintenance.

[0053] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A portable waterproofing and leak-stopping device for tunnel construction, characterized in that: The device includes a first sealing element and a second sealing element symmetrically arranged along the length of the pipe. The first sealing element and the second sealing element form an installation cavity that abuts against the pipe. The first sealing element has multiple rotating plates rotatably connected to both sides symmetrically along its own length. A screw is rotatably connected to the rotating plate. A movable threaded ring is screwed onto the screw. The second sealing element has multiple second side grooves symmetrically opened on both sides symmetrically along its own length. The second side grooves are matched one by one with the screw.

2. The portable waterproofing and leak-stopping device for tunnel construction according to claim 1, characterized in that: A base frame is fixedly connected to the outer peripheral surface of the first sealing element, and a support member for supporting the first sealing element is rotatably connected to the base frame. A stop bar is fixedly connected to the free end of the screw.

3. The portable waterproofing and leak-stopping device for tunnel construction according to claim 2, characterized in that: The support includes a rotating head, which is rotatably connected to the inner side of the base frame, and a bottom tube is fixedly connected to the circumference of the rotating head. A limit rod is installed between the rotating head and the base frame, and a connecting ring is screwed onto one end of the limit rod.

4. A portable waterproofing and leak-stopping device for tunnel construction according to claim 3, characterized in that: The free end of the bottom tube is recessed to form a first connecting hole. A detachable connecting rod is screwed into the first connecting hole. An extension tube is fixedly connected to the free end of the connecting rod. The free end of the extension tube is recessed to form a second connecting hole, which matches the connecting rod.

5. A portable waterproofing and leak-stopping device for tunnel construction according to claim 4, characterized in that: The first sealing element includes a first side tube, which is recessed on one side facing the second sealing element to form a first groove, and the outer circumference of the first side tube is recessed on both sides to form a first side groove, and the rotating plate is rotatably connected to the inside of the first side groove.

6. A portable waterproofing and leak-stopping device for tunnel construction according to claim 5, characterized in that: The first groove is provided with a first sealing gasket, and the inner wall of the first sealing gasket is recessed to form a first annular groove.

7. A portable waterproofing and leak-stopping device for tunnel construction according to claim 6, characterized in that: The second seal includes a second side tube, which is recessed on one side facing the first side tube to form a second groove, and the second side groove is formed on both sides symmetrical to the outer circumference of the second side tube.

8. A portable waterproofing and leak-stopping device for tunnel construction according to claim 7, characterized in that: The inner wall of the second groove is provided with a second sealing gasket, and the inner wall of the second sealing gasket is recessed to form a second annular groove.

9. A portable waterproofing and leak-stopping device for tunnel construction according to claim 8, characterized in that: A pressure relief pipe is fixedly connected to the outer circumferential surface of the second side pipe. The pressure relief pipe communicates with the interior of the second side pipe, and a valve is installed on one side of the pressure relief pipe.

10. A portable waterproofing and leak-stopping device for tunnel construction according to claim 9, characterized in that: A connecting pipe is fixedly connected to the side of the pressure relief pipe away from the second side pipe. A water guide is provided on one side of the connecting pipe. The water guide includes a water supply pipe. Both ends of the water supply pipe are fixedly connected to connectors, and the connectors are matched with the connecting pipe.