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CN-121977130-A - Temporary water retaining device for pipeline maintenance

CN121977130ACN 121977130 ACN121977130 ACN 121977130ACN-121977130-A

Abstract

The embodiment of the application provides a temporary water blocking device for pipeline maintenance, and relates to the technical field of large-caliber pipeline maintenance auxiliary equipment. The temporary water blocking device for pipeline maintenance comprises a frame body supporting mechanism, a folding bracket mechanism and an air bag part. The first electric push rod and the second electric push rod are respectively arranged at two ends of the seat frame. And a limiting piece is arranged between the first transverse supporting plate, the auxiliary supporting plate and the second transverse supporting plate in sequence for limiting, opening and closing connection. The inner semicircular air bag is arranged on one side of the folding bracket mechanism, which is far away from the bracket body supporting mechanism, and the inner semicircular air bag and the outer air bag are integrally formed and are provided with air inlet and outlet holes. The frame body supporting mechanism is matched with the folding bracket mechanism to stably support the inner semicircular air bags and the peripheral air bags, so that the large-diameter pipeline with water retaining function is sealed better, and the temporary water retaining device is prevented from moving by stable support. The inner semicircular air bags and the peripheral air bags occupy smaller inflation space, so that inflation and deflation are quicker, and the inflatable air bags and the device can be integrally folded and transferred.

Inventors

  • FU JIAWEI
  • PAN NING
  • CHEN JIANFENG
  • JIANG YONGCHANG
  • PAN TING

Assignees

  • 宁波工业供水有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. The utility model provides a temporary water retaining device for pipeline maintenance which characterized in that includes: The support body supporting mechanism (10), support body supporting mechanism (10) includes seat frame (110), first electric putter (120), second electric putter (130) and transmission shaft (160), first electric putter (120), second electric putter (130) are installed respectively at seat frame (110) both ends, first electric putter (120), second electric putter (130) output rod end all are provided with supporting part (140), transmission shaft (160) rotate with seat frame (110) and set up, rotation drive part (170) are installed to seat frame (110) one side and drive transmission shaft (160) rotation, seat frame (110) one side fixedly connected with fixed plate (150); The folding support mechanism (20), folding support mechanism (20) include first cross bracing board (210), second cross bracing board (220) and auxiliary bracing board (230), first cross bracing board (210), a plurality of auxiliary bracing board (230) one end all rotate with transmission shaft (160) and set up, second cross bracing board (220) one end and transmission shaft (160) fixed connection, first cross bracing board (210) and fixed plate (150) fixed connection, polylith auxiliary bracing board (230) are located between first cross bracing board (210), second cross bracing board (220) the lamination setting, spacing piece is set gradually between first cross bracing board (210), auxiliary bracing board (230), second cross bracing board (220) and is spacing open and shut the connection; The air bag part (30), air bag part (30) include interior semicircle gasbag (310), peripheral gasbag (320), interior semicircle gasbag (310) set up in folding support mechanism (20) keep away from support body supporting mechanism (10) one side, peripheral gasbag (320) enclose and set up in first cross bracing board (210), second cross bracing board (220), auxiliary stay board (230) outer end connection, and interior semicircle gasbag (310), peripheral gasbag (320) integrated into one piece and be provided with the business turn over gas pocket.
  2. 2. The temporary water blocking device for pipeline maintenance according to claim 1, further comprising a sealing belt (40), wherein the sealing belt (40) is fixedly connected to the outer ring of the peripheral air bag (320).
  3. 3. The temporary water blocking device for pipeline maintenance according to claim 2, wherein the sealing belt (40) is of an S-shaped wave structure and is fixedly attached to the periphery of the peripheral air bag (320), and the width of the peripheral air bag (320) is larger than the crest distance of the sealing belt (40).
  4. 4. The temporary water blocking device for pipeline maintenance according to claim 1, wherein the back surfaces of the first transverse supporting plate (210) and the auxiliary supporting plate (230) are respectively provided with an arc-shaped guide groove (240), the limiting piece comprises a limiting block (250) and a guide block (260), the limiting block (250) is positioned at the end part of the arc-shaped guide groove (240) and is fixed with the side edges of the first transverse supporting plate (210) and the auxiliary supporting plate (230) respectively, and the guide block (260) is arranged at one side of the auxiliary supporting plate (230) and one side of the second transverse supporting plate (220) and is in sliding guide fit with the arc-shaped guide groove (240).
  5. 5. The temporary water blocking device for pipe repair according to claim 4, wherein one end of the fixing plate (150) far from the seat frame (110) is fixed above the first transverse supporting plate (210), and the end of the fixing plate (150) is located at a guide block (260) on the side of the limiting auxiliary supporting plate (230) above the arc-shaped guide groove (240) on the side of the first transverse supporting plate (210).
  6. 6. The temporary water blocking device for pipeline maintenance according to claim 1, wherein the rotation driving part (170) comprises a support (171), a worm wheel (172), a worm (173) and a hand wheel (174), the support (171) is fixedly connected with the seat frame (110) to rotatably support the worm (173), the worm wheel (172) is fixedly sleeved at one end of the transmission shaft (160) and is meshed with the worm (173) for self-locking, and the hand wheel (174) is installed at one end of the worm (173).
  7. 7. The temporary water blocking device for pipe repair according to claim 1, wherein the supporting portion (140) comprises a seat block (141) and an anti-slip pad (142), the anti-slip pad (142) is arranged on the outer side of the seat block (141), and anti-slip lines are arranged on the outer side of the anti-slip pad (142).
  8. 8. The temporary water blocking device for pipe repair according to claim 1, wherein the first cross brace plate (210) and the second cross brace plate (220) are disposed at the same horizontal position after being unfolded.
  9. 9. The temporary water deflector for pipe repair of claim 1, wherein the frame support mechanism (10) further comprises a handle (180), the handle (180) being mounted above the seat frame (110).
  10. 10. The temporary water blocking device for pipe repair according to claim 1, wherein one end of each of the first cross support plate (210), the second cross support plate (220) and the auxiliary support plate (230) is provided with a circular hole matched with the transmission shaft (160).

Description

Temporary water retaining device for pipeline maintenance Technical Field The application relates to the technical field of large-caliber pipeline maintenance auxiliary equipment, in particular to a temporary water blocking device for pipeline maintenance. Background In the fields of municipal water supply and drainage, hydraulic engineering and the like, the daily maintenance and rush repair operation of a 1.6-2.2 m large-caliber pipeline are quite common. When the pipeline is damaged and leaked and needs welding maintenance, residual running water in the pipeline can directly influence the normal operation of welding operation, an effective welding pool cannot be formed, and maintenance failure is caused, so that a temporary water retaining device is required to be arranged at the upstream and downstream of a maintenance point, running water is cut off, and a water-free environment is provided for the maintenance operation. In the prior art, an air bag type water shutoff device is adopted for temporary water blocking of a large-caliber pipeline, the air bag is inflated to enable the air bag to expand and adhere to the inner wall of the pipeline to achieve water blocking, but the device has obvious defects that 1, after the air bag with the large caliber is inflated, local bulge and deformation are easy to occur, the air bag cannot be uniformly adhered to the inner wall of the pipeline, the sealing performance is poor, leakage is easy to occur under the water carrying condition, 2, the adaptive pipeline range of the air bag is extremely narrow, a single air bag can only be matched with the pipeline with the fixed inner diameter, the rush-repair requirement of the pipe diameter with the wide range of 1.6-2.2 meters can not be met, the universality is poor, 3, the air bag with the large caliber is required to be matched with large-flow inflating equipment, the installation and the disassembly in a narrow pipeline are complicated, the rush-repair efficiency is low, 4, the water flow impact resistance of the air bag is weak, and the air bag slipping and shifting situation easily occurs when the water flow pressure in the large-caliber pipeline is high, and the safety hidden trouble exists. Part prior art adopts the rigidity breakwater structure, but the pipeline of the unable adaptation different internal diameters of this kind of structure, and the breakwater is poor with the laminating degree of pipeline inner wall, easily appears the seepage, easily fish tail pipeline inner wall when installing simultaneously influences the life of pipeline. Therefore, development of a temporary water blocking device which is suitable for a 1.6-2.2 m large-caliber pipeline, good in sealing performance, convenient to install, high in impact resistance and free of damaging the inner wall of the pipeline is needed, and pain points in the prior art are solved. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a temporary water blocking device for pipeline maintenance, which aims to solve the problems that an air bag type water shutoff device in the prior art is poor in sealing performance, needs a large amount of inflation and is easy to slip. The temporary water blocking device for pipeline maintenance comprises a frame body supporting mechanism, a folding bracket mechanism and an air bag part. The frame body supporting mechanism comprises a seat frame, a first electric push rod, a second electric push rod and a transmission shaft, wherein the first electric push rod and the second electric push rod are respectively installed at two ends of the seat frame, supporting parts are arranged at the output rod ends of the first electric push rod and the second electric push rod, the transmission shaft and the seat frame are rotatably arranged, a rotation driving part is installed at one side of the seat frame to drive the transmission shaft to rotate, and a fixing plate is fixedly connected to one side of the seat frame; The folding bracket mechanism comprises a first transverse supporting plate, a second transverse supporting plate and auxiliary supporting plates, wherein one ends of the first transverse supporting plate and the plurality of auxiliary supporting plates are respectively and rotatably arranged with a transmission shaft, one ends of the second transverse supporting plates are fixedly connected with the transmission shafts, the first transverse supporting plates are fixedly connected with the fixing plates, a plurality of auxiliary supporting plates are arranged between the first transverse supporting plates and the second transverse supporting plates in a laminated mode, and limiting pieces are sequentially arranged between the first transverse supporting plates, the auxiliary supporting plates and the second transverse supporting plates for limiting, opening and closing connection; the air bag part compris