Needling grouting device for water stopping and repairing of underground tunnel
By using a needle-punch grouting device in underground tunnel engineering, piercing the rubber water stop pad and filling the grouting liquid, the problem of leakage in the tunnel pipe joints is solved, effective water stop repair and sealing effect is achieved, and rapid recycling is supported.
Patent Information
- Application Number
- CN202420680147.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-03
AI Technical Summary
In existing underground tunnel projects, water leakage occurs in the joints of pipe segments in some sections, especially at the edges of the rubber water stop pad, grouting holes, hoisting holes, etc., which makes it difficult to effectively stop water.
A needle-punching grouting device for water stop repair of underground tunnels is provided, including a movable rack, a dispensing head, a syringe, a sealing head and a power assembly. The rubber water stop pad is pierced through the syringe, and the polyurethane grouting liquid is poured to its back surface, filling the gap and solidifying, so as to achieve water stop repair.
The problem of leakage on the back of the rubber water-stop pad is effectively solved. Through infusion and curing, a good water-stop effect after sealing is achieved, and the device is quickly recycled through automatic cleaning function.
Smart Images
Figure CN222596088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel water stopping, and more specifically, to a needle grouting device for underground tunnel water stopping repair. Background Art
[0002] In the existing underground tunnel projects, it was found through inspection that some sections of the pipe segment joints had water leakage, accompanied by the following characteristics: the leakage section basically overlapped with the original broken zone; the leakage parts were located at the edge of the pipe segment, joints, grouting holes, lifting holes, etc.; the pipe segments were intact and undamaged, among which most leakages occurred at the edge of the pipe segment, that is, at the pipe segment joints. This is because the pipe segments were bolted during installation, and each pipe segment edge was installed with a rubber water stop pad. The rubber water stop pad would leak under the action of water pressure due to improper installation or damage. However, it is currently difficult to stop the water at the leakage point, and it is difficult to stop the water at the back of the rubber water stop pad. Summary of the invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a needle grouting device for water-stopping repair of an underground tunnel, which has the advantage of effective water-stopping.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a needle grouting device for underground tunnel water stopping and repair, comprising a movable frame, a distribution head is provided at the front end of the movable frame, the front end of the distribution head is fixedly connected to a syringe, a liquid outlet is provided on the outer surface of the syringe, the liquid outlet is located near the front end of the syringe, a sealing head is fixedly sleeved at the rear end of the distribution head, a power assembly is provided on the outside of the movable frame, the front end of the movable frame is fixedly connected to the sealing head, and the movable frame is slidably installed in the power assembly.
[0005] As a preferred technical solution of the utility model, an internal cavity is opened inside the syringe, and the internal cavity is connected with the liquid outlet, and the internal cavity is connected with the dispensing head.
[0006] As a preferred technical solution of the utility model, the top of the distribution head is fixedly connected with a connecting pipe, and both sides of the distribution head are fixedly connected with purge components.
[0007] As a preferred technical solution of the utility model, the power assembly includes a mounting frame, a support arm, a motor and a slider, the support arm is fixedly connected to the front end of the mounting frame, the motor is fixedly sleeved in the mounting frame, and the slider is fixedly connected to the inner side of the support arm.
[0008] As a preferred technical solution of the utility model, the output shaft of the motor is fixedly connected with a threaded rod, and the threaded rod is threadedly sleeved with the mounting frame.
[0009] As a preferred technical solution of the utility model, a sliding groove is provided on the side of the mounting frame, and the sliding groove is slidably sleeved with the sliding block.
[0010] As a preferred technical solution of the utility model, the purge assembly includes a sleeve, a mounting tube, a fan and a control valve. The sleeve is fixedly sleeved on both sides of the distribution head, the mounting tube is fixedly connected to the outer end of the sleeve, the fan is installed in the mounting tube, and the control valve is fixedly sleeved on the sleeve.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model starts the power component so that the motor drives the threaded rod to rotate, so that the movable frame that is threadedly sleeved on the outside of the threaded rod slides through the cooperation of the slide groove and the slider, and the movable frame drives the syringe to pierce the rubber waterstop pad, so that the front end of the syringe moves to the outside of the rubber waterstop pad, and the external grouting equipment is started to pour the polyurethane grouting liquid into the distribution head, so that the grouting liquid is injected into the back of the rubber waterstop pad along the internal cavity and the liquid outlet of the syringe, and as the grouting fills the gap, the syringe is gradually pushed out, and the grouting liquid solidifies to complete the waterstop repair. The elastic recovery ability of the rubber waterstop pad and the solidification ability of the grouting liquid are utilized to perform intermittent filling directly from the back of the rubber waterstop pad, thereby realizing the repair and enhanced sealing after solidification, and the actual sealing and waterstopping effect is good.
[0013] 2. The utility model allows the syringe to be completely withdrawn, the external perfusion tube installed with the connecting tube is removed, and the external sealing cover is covered, the fan in the purge assembly is started, and the control valve is started at the same time, the connection between the sleeve and the distribution head is opened, and the wind volume is blown into the distribution head to further blow out the remaining liquid in the internal cavity of the syringe, thereby completing automatic cleaning, realizing fast and effective automatic cleaning of the inside of the syringe, realizing fast recycling, and completing fast and effective water-stopping repair operations on multiple rubber water-stop pads, with good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0016] Figure 3 It is a schematic diagram of the syringe of the utility model;
[0017] Figure 4 It is an exploded schematic diagram of the mounting frame and power assembly of the utility model;
[0018] Figure 5 It is a schematic diagram of the purge assembly of the utility model.
[0019] In the figure: 1. syringe; 2. internal cavity; 3. liquid outlet; 4. dispensing head; 5. sealing head; 6. threaded rod; 7. power assembly; 71. mounting frame; 72. support arm; 73. motor; 74. slider; 8. movable frame; 9. slide groove; 10. connecting pipe; 11. purge assembly; 111. sleeve; 112. mounting pipe; 113. fan; 114. control valve. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] like Figures 1 to 5 As shown, the utility model provides a needle grouting device for underground tunnel water stopping and repairing, including a movable frame 8, a distribution head 4 is provided at the front end of the movable frame 8, the front end of the distribution head 4 is fixedly connected to a syringe 1, the outer surface of the syringe 1 is provided with a liquid outlet 3, the liquid outlet 3 is located near the front end of the syringe 1, the rear end of the distribution head 4 is fixedly sleeved with a sealing head 5, a power assembly 7 is provided on the outside of the movable frame 8, the front end of the movable frame 8 is fixedly connected to the sealing head 5, and the movable frame 8 is slidably installed in the power assembly 7.
[0022] An internal cavity 2 is provided inside the syringe 1 , and the internal cavity 2 is connected to the liquid outlet 3 , and the internal cavity 2 is connected to the dispensing head 4 .
[0023] By using the front end of the syringe 1 to pierce the rubber water-stop pad, the gap on the back is filled and the water-stop repair is achieved. Chemical perfusion is used to complete the sealing and strengthen the seal after curing.
[0024] The top of the distribution head 4 is fixedly connected with a connecting pipe 10 , and both sides of the distribution head 4 are fixedly connected with purge components 11 .
[0025] By connecting with the external grouting pipeline through the connecting pipe 10, the pure pressure method of electric chemical grouting pump is actually used for grouting. The grouting pressure is controlled at 0.2~0.4 MPa. Local grouting, whole ring grouting and longitudinal seam grouting can be used. If a large amount of slurry flows out during grouting, quick-setting cement, hemp silk, cloth strips, etc. can be used to continue to block; if there is outflow but the amount is not large, intermittent grouting can be adopted, that is, re-grouting can be carried out after the first injected slurry solidifies.
[0026] After the infusion is completed, the following post-processing is performed:
[0027] 1) Surface cleaning: Use a wire brush or grinder to treat the surface of the pipe segment at the treatment site to remove oil stains, loose soil and mortar on the surface;
[0028] 2) Closing of grouting holes: Use the original sealing mortar to fill the holes on the base surface of the pipe segment tightly, thus completing all grouting operations.
[0029] Among them, the power component 7 includes a mounting frame 71, a support arm 72, a motor 73 and a slider 74. The support arm 72 is fixedly connected to the front end of the mounting frame 71, the motor 73 is fixedly sleeved in the mounting frame 71, and the slider 74 is fixedly connected to the inner side of the support arm 72.
[0030] The power assembly 7 realizes the power of the syringe 1 for puncturing, ensuring stable puncture of the rubber water-stop pad.
[0031] Ensure the accuracy of the drilling position and direction during use to avoid possible damage to the rubber water stop pad during this process. Use a 14 mm drill bit to drill a small hole about 50 mm deep in the sealing mortar at the joint of the pipe segment. The drilling should be perpendicular to the normal line, and the drill rod and the positioning rulers on both sides should always be kept in the same plane during the drilling process. In addition, to prevent damage to the rubber water stop pad, mark the limit position of 50 mm on the drill rod in advance when drilling.
[0032] The output shaft of the motor 73 is fixedly connected with the threaded rod 6 , which is threadedly sleeved with the mounting frame 71 . A sliding groove 9 is provided on the side of the mounting frame 71 , which is slidably sleeved with the slider 74 .
[0033] The threaded sleeve connection between the threaded rod 6 and the movable frame 8 is used in conjunction with the sliding sleeve connection between the slide groove 9 and the slide block 74 to improve the stability of the lateral movement and piercing.
[0034] Among them, the purge assembly 11 includes a sleeve 111, a mounting tube 112, a fan 113 and a control valve 114. The sleeve 111 is fixedly sleeved on both sides of the distribution head 4, the mounting tube 112 is fixedly connected to the outer end of the sleeve 111, the fan 113 is installed in the mounting tube 112, and the control valve 114 is fixedly sleeved on the sleeve 111.
[0035] By utilizing the purge assembly, the interior of the subsequent syringe 1 can be quickly and effectively cleaned, thereby improving the convenience of subsequent recycling use.
[0036] The working principle and use process of the utility model are as follows: when in use, the front conical end of the syringe 1 is brought into contact with the rubber water-stopping pad from the inside along the vicinity of the rubber water-stopping pad, the grouting pipeline is installed on the connecting pipe 10, the power assembly 7 is started, so that the motor 73 drives the threaded rod 6 to rotate, so that the movable frame 8 threadedly sleeved on the outside of the threaded rod 6 slides through the slide groove 9 and the slider 74, and the movable frame 8 drives the syringe 1 to pierce the rubber water-stopping pad, so that the front end of the syringe 1 moves to the outside of the rubber water-stopping pad, the external grouting equipment is started, and the polyurethane grouting liquid is poured into the distribution head 4, so that the grouting liquid flows along the rubber water-stopping pad. The liquid is injected into the back of the rubber water-stop pad through the internal cavity 2 and the liquid outlet 3 of the syringe 1. As the perfusion fills the gap, the syringe 1 is gradually pushed out, the perfusion liquid solidifies, and the water-stop repair is completed. When the perfusion is completed, as the power component 7 is reset, the syringe 1 is completely withdrawn, the external perfusion tube installed with the connecting tube 10 is removed, and the external sealing cover is covered. The fan 113 in the purge component 11 is started, and the control valve 114 is started at the same time, the connection between the sleeve 111 and the distribution head 4 is opened, and as the air volume is purged into the distribution head 4, the remaining liquid in the internal cavity 3 of the syringe 1 is further blown out to complete the automatic cleaning.
[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A needle grouting device for waterproofing and repairing an underground tunnel, comprising a movable frame (8), characterized in that: The front end of the movable frame (8) is provided with a distribution head (4), the front end of the distribution head (4) is fixedly connected to a syringe (1), the outer surface of the syringe (1) is provided with a liquid outlet hole (3), the liquid outlet hole (3) is located near the front end of the syringe (1), the rear end of the distribution head (4) is fixedly sleeved with a sealing head (5), the outside of the movable frame (8) is provided with a power assembly (7), the front end of the movable frame (8) is fixedly connected to the sealing head (5), and the movable frame (8) is slidably installed in the power assembly (7).
2. The needle grouting device for underground tunnel water stop repair according to claim 1, characterized in that: An internal cavity (2) is provided inside the syringe (1), the internal cavity (2) is connected to the liquid outlet hole (3), and the internal cavity (2) is connected to the distribution head (4).
3. The needle grouting device for underground tunnel water stop repair according to claim 2, characterized in that: The top of the distribution head (4) is fixedly connected to a connecting pipe (10), and both sides of the distribution head (4) are fixedly connected to purge components (11).
4. The needle grouting device for underground tunnel water stop repair according to claim 3, characterized in that: The power assembly (7) comprises a mounting frame (71), a support arm (72), a motor (73) and a slider (74); the support arm (72) is fixedly connected to the front end of the mounting frame (71); the motor (73) is fixedly sleeved in the mounting frame (71); and the slider (74) is fixedly connected to the inner side surface of the support arm (72).
5. The needle grouting device for underground tunnel water stop repair according to claim 4, characterized in that: The output shaft of the motor (73) is fixedly connected to a threaded rod (6), and the threaded rod (6) is threadably sleeved with the mounting frame (71).
6. The needle grouting device for underground tunnel water stop repair according to claim 5, characterized in that: A sliding groove (9) is provided on the side of the mounting frame (71), and the sliding groove (9) is slidably sleeved with the sliding block (74).
7. The needle grouting device for underground tunnel water stop repair according to claim 6, characterized in that: The purge assembly (11) comprises a sleeve (111), a mounting tube (112), a fan (113) and a control valve (114); the sleeve (111) is fixedly sleeved on both sides of the distribution head (4); the mounting tube (112) is fixedly connected to the outer end of the sleeve (111); the fan (113) is installed in the mounting tube (112); and the control valve (114) is fixedly sleeved on the sleeve (111).