Chuck water stop device for hollow structure

Abstract

The utility model provides a chuck water stop device for a hollow structure. The hollow structure chuck water stop device comprises a sleeve, one end of the sleeve is connected with a chuck, the chuck is provided with at least two clamping jaws, the other end of the sleeve is provided with a pushing part, and the pushing part axially moves in the direction close to the chuck so as to drive the at least two clamping jaws to be opened in the radial direction. A water stop piece is connected to the outer portion of the sleeve and can axially move relative to the sleeve. The sleeve is used for enabling the chuck and the clamping jaw to rapidly enter the pipeline from a damaged opening of the pipeline, then the pushing piece is used for opening the clamping jaw so as to be attached and fixed to the side wall of the pipeline, then the water stopping piece is moved to block the damaged opening, operation is easy, emergency water stopping of the damaged pipeline can be achieved, groove excavation is not affected after water stopping, and the water stopping effect is good. And the project progress is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction, in particular to a chuck water-stopping device for a hollow structure. Background Art

[0002] During the renovation and expansion of municipal pipe networks, when digging trenches, underground pipes are often dug, causing damage to the pipe walls of underground pipes. If the project is rushed, the underground pipeline detection is unclear, or the operators are inexperienced, it is inevitable that the side walls of the underground pipes will be damaged during trench excavation, forming a damaged opening, causing the water in the pipe to overflow from the damaged opening. At this time, the damaged opening of the pipe needs to be repaired.

[0003] Existing repair methods use clamps, broken pipes, and lined pipes. Before repair, the water valve is closed and the repair can only be carried out after the water head in the pipe drops to a safe position. This process requires a long wait, and emergency water stopping cannot be achieved. Trench excavation work cannot be carried out normally. Trench excavation can only be resumed after the pipeline is completely repaired, affecting the progress of the project. Utility Model Content

[0004] The utility model aims to provide a chuck water-stopping device for an inner hollow structure, which can realize emergency water-stopping of a damaged pipeline and does not affect trench excavation after water-stopping.

[0005] The technical solution of the utility model is: a chuck water-stopping device for an internal hollow structure, comprising a sleeve, one end of the sleeve is connected to a chuck, the chuck is provided with at least two claws, the other end of the sleeve is provided with a propeller, the propeller is axially displaced in a direction close to the chuck to drive at least two of the claws to radially open, the outside of the sleeve is connected to a water-stopping member, and the water-stopping member can be axially displaced relative to the sleeve.

[0006] In the above scheme, a sleeve is used to quickly move the chuck and the claw into the pipe from the damaged opening, and then the claw is stretched open by a pusher to fit and fix it to the side wall of the pipe, and then the water stop is moved to seal it at the damaged opening. The operation is simple and can achieve emergency water stopping of the damaged pipe. After water stopping, it does not affect the trench excavation and the progress of the project.

[0007] Preferably, the water stop member includes a nut, a sealing member and a pad connected to one side of the sealing member, the pad is arranged on the side away from the chuck, the nut is located on the side of the pad away from the chuck, the pad and the sealing member are mounted on the sleeve, and the nut is threadedly connected to the sleeve.

[0008] Preferably, the sealing member is a rubber member.

[0009] Preferably, the blocking member is a frustum of a cone, and a large diameter end thereof is connected to the backing plate.

[0010] Preferably, the propulsion member comprises a first rod, a second rod and a cone head for spreading the clamping claws, and the first rod is threadedly connected to the sleeve at one end away from the chuck.

[0011] Preferably, the propulsion member further comprises a guide plate, the guide plate is arranged inside the sleeve, and the second rod passes through the guide plate.

[0012] Preferably, the first rod includes a screw and a head connected to one end of the screw, the screw is threadedly connected to the sleeve, the head is a hexagonal structure, and the cross-sectional area of ​​the head is larger than the cross-sectional area of ​​the sleeve.

[0013] Preferably, the chuck comprises a circular disk, a plurality of slots are provided on the circumference of the circular disk, one of the clamping claws is installed in each slot, and one end of the water stop can extend into the circular disk to open the clamping claw.

[0014] Preferably, the end of each of the claws is connected to a baffle, and the baffle is arranged inside the disc.

[0015] Preferably, the baffle is an arc-shaped plate.

[0016] Compared with the related art, the beneficial effects of the utility model are:

[0017] 1. Use the sleeve to quickly insert the chuck and the claw into the pipe from the damaged opening, then use the pusher to open the claw to fit and fix it with the side wall of the pipe, and then move the water stop to seal it at the damaged opening. The operation is simple and can achieve emergency water stopping of the damaged pipe. After water stopping, it will not affect the trench excavation and the progress of the project.

[0018] Second, the plugging piece is made of rubber, which has a certain elasticity and can be closely attached to the outer wall of the damaged opening of the pipeline to achieve effective plugging;

[0019] 3. The axial displacement of the propulsion member and the axial positioning of the water stop member are both achieved by means of threads, so that they have a certain self-locking property and prevent the cone head and the sealing member from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the chuck water-stopping device for the hollow structure provided by the utility model;

[0021] Figure 2 is a schematic diagram of the structure of the sleeve;

[0022] Figure 3 is a schematic diagram of the structure of the chuck;

[0023] Figure 4 A structural schematic diagram of a first use mode of the hollow structure chuck water-stopping device provided by the utility model;

[0024] Figure 5 A structural schematic diagram of a second usage mode of the hollow structure chuck water-stopping device provided by the utility model.

[0025] In the accompanying drawings: 1. sleeve; 11. internal thread; 12. external thread; 2. water stop; 21. sealing member; 22. gasket; 23. nut; 3. thrust member; 31. first rod; 311. screw rod; 312. head; 32. second rod; 33. cone head; 34. guide plate; 4. chuck; 41. claw; 42. disc; 43. baffle; 5. pipe; 51. damaged opening. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0027] like Figure 1 As shown, a chuck water-stopping device for a hollow structure provided in this embodiment includes a sleeve 1, a water-stopping member 2, a propulsion member 3 and a chuck 4.

[0028] like Figure 2 As shown, the inner surface of one end of the sleeve 1 is provided with an internal thread 11, and the outer surface of the other end is provided with an external thread 12. The two ends of the sleeve 1 are through.

[0029] like Figure 1 As shown, the chuck 4 is fixed to the end of the sleeve 1 provided with the external thread 12 by welding or screwing. Figure 3 As shown, the chuck 4 includes a claw 41, a disc 42 and a baffle 43. Six slots are provided on the circumference of the disc 42, and each slot is provided with a claw 41, and the claw 41 is a plate-like structure. The slot is in the shape of an elongated strip. A baffle 43 is connected to the end of each claw 41, and the baffle 43 is arranged inside the disc 42, and the length (arc length) of the baffle 43 is greater than the length of the slot. The baffle 43 is used to contact with the cone head 33 and transmit the internal support force, so that the claw 41 slides out of the slot, and at the same time, the baffle 43 limits the maximum sliding stroke of the claw 41. The baffle 43 is an arc-shaped plate. In addition, the baffle 43 can also be provided at both ends of the claw 41.

[0030] like Figure 4 As shown, in one use mode, the claws 41 on the upper and lower sides of the disc 42 abut against the inner wall of the pipe 5. Figure 5As shown, in another use mode, the claws 41 on the horizontal side of the disc 42 fit the inner wall of the pipe 5. The actual selection is made according to the use requirements. The redundant claws 41 that interfere can also be removed.

[0031] like Figure 1 As shown, the water stop 2 includes a nut 23, a plugging member 21 and a pad 22 connected to one side of the plugging member 21. The pad 22 is arranged on the side away from the chuck 4, and the nut 23 is located on the side of the pad 22 away from the chuck 4. The pad 22 and the plugging member 21 are mounted on the sleeve 1, and the nut 23 is threadedly connected to the external thread 12 on the sleeve 1. The plugging member 21 is a rubber member. The plugging member 21 is a truncated cone, and its large diameter end is connected to the pad 22. The water stop 2 can be removed from the sleeve 1 as a whole, so that a plugging member 21 of appropriate size can be selected according to the size of the damaged opening. When selecting, the area of ​​the small diameter end of the plugging member 21 is larger than the area of ​​the damaged opening 51. The damaged opening 51 is directly covered with the small diameter end.

[0032] like Figure 1 As shown, the pusher 3 includes a first rod 31, a second rod 32, a guide plate 34 and a cone head 33 for opening the claw 41. The first rod 31 includes a screw rod 311 and a head 312 connected to one end of the screw rod 311, the screw rod 311 is threadedly connected to the internal thread 11 of the sleeve 1, the head 312 is a hexagonal structure, and the cross-sectional area of ​​the head 312 is larger than the cross-sectional area of ​​the sleeve 1. The length of the screw rod 311 needs to ensure that the cone head 33 has sufficient travel.

[0033] The cone head 33 is arranged near the chuck 4. The cone head 33 is a truncated cone structure with one large and one small, wherein the large diameter end is connected to the second rod 32, and the small diameter end is used to be inserted into the disc 42, and the claws 41 are gradually opened through the conical surface of the cone head 33. One end of the second rod 32 is connected to the side of the cone head 33 away from the chuck 4, and the other end of the second rod 32 is arranged adjacent to the first rod 31, or the second rod 32 is connected to the first rod 31 as a whole. The guide plate 34 is arranged inside the sleeve 1, and the second rod 32 passes through the guide plate 34.

[0034] like Figure 4As shown, if a damaged opening 51 is dug out on the side wall of the pipe 5, it can be selected whether to close the water valve according to the water flow condition of the damaged opening 51. Then the water stop device of the utility model can be used. First, fix the chuck 4 on the sleeve 1, and the claw 41 is in the retracted position. If the diameter of the damaged opening 51 is smaller than the diameter of the retracted claw 41, the claw 41 can be inserted obliquely, or the damaged opening 51 can be appropriately expanded, but it is necessary to select a suitable plugging member 21 according to the area of ​​the final damaged opening 51. Then install the water stop member 2 and the thrust member 3 on the sleeve 1. Then extend the chuck 4 from the damaged opening 51 into the pipe 5 through the sleeve 1. The first screw rod 31 is screwed to make the screw rod 311 axially displaced to contact the second rod 32. During the process of the screw rod 311 continuing to displace, the second rod 32 pushes the cone head 33 to move into the disc 42, and the claw 41 is stretched open to support or fit on the inner wall of the pipe 5. Then screw the nut 23 to push the plugging member 21 to move axially until the plugging member 21 is tightly attached to the outer wall of the pipe 5, and the damaged opening 51 is sealed by surface-to-surface bonding. After sealing, the closed water valve can be opened first without affecting water use. Then continue to dig the trench, and after the project is completely completed, close the water valve, wait until the water head in the pipe drops to a safe position, and then perform permanent repair on the damaged opening 51 of the pipe 5.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A chuck water-stopping device for a hollow structure, characterized in that: The invention comprises a sleeve (1), one end of the sleeve (1) is connected to a chuck (4), the chuck (4) is provided with at least two claws (41), the other end of the sleeve (1) is provided with a propulsion member (3), the propulsion member (3) is axially displaced in a direction close to the chuck (4) to drive at least two claws (41) to radially open, and the sleeve (1) is externally connected to a water stop member (2), the water stop member (2) being able to axially displace relative to the sleeve (1).

2. The hollow structure chuck water stopping device according to claim 1, characterized in that: The water stop member (2) comprises a nut (23), a plugging member (21) and a pad (22) connected to one side of the plugging member (21); the pad (22) is arranged on a side away from the chuck (4); the nut (23) is located on a side of the pad (22) away from the chuck (4); the pad (22) and the plugging member (21) are sleeved on the sleeve (1); and the nut (23) is threadedly connected to the sleeve (1).

3. The hollow structure chuck water stopping device according to claim 2, characterized in that: The blocking piece (21) is a rubber piece.

4. The hollow structure chuck water stopping device according to claim 2, characterized in that: The blocking member (21) is a truncated cone, and its large diameter end is connected to the backing plate (22).

5. The chuck water stopping device for hollow structures according to any one of claims 1 to 4, characterized in that: The propulsion member (3) comprises a first rod (31), a second rod (32) and a cone head (33) for spreading the claws (41); the first rod (31) is threadedly connected to the sleeve (1) at one end away from the chuck (4); the cone head (33) is arranged close to the chuck (4); one end of the second rod (32) is connected to a side of the cone head (33) away from the chuck (4); and the other end of the second rod (32) is arranged adjacent to the first rod (31).

6. The hollow structure chuck water stopping device according to claim 5, characterized in that: The propulsion member (3) further comprises a guide plate (34), wherein the guide plate (34) is arranged inside the sleeve (1), and the second rod (32) passes through the guide plate (34).

7. The hollow structure chuck water stopping device according to claim 5, characterized in that: The first rod (31) comprises a screw rod (311) and a head (312) connected to one end of the screw rod (311); the screw rod (311) is threadedly connected to the sleeve (1).

8. The hollow structure chuck water stopping device according to claim 1, characterized in that: The chuck (4) comprises a circular disk (42), a plurality of slots are provided on the circumference of the circular disk (42), one of the clamping claws (41) is installed in each slot, and one end of the water stop member (2) can extend into the circular disk (42) to open the clamping claw (41).

9. The hollow structure chuck water stopping device according to claim 8, characterized in that: The end of each claw (41) is connected to a baffle (43), and the baffle (43) is arranged inside the disc (42).

10. The hollow structure chuck water stopping device according to claim 9, characterized in that: The baffle plate (43) is an arc-shaped plate.

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