CN-121993688-A - Temporary plugging device for pipeline maintenance

CN121993688ACN 121993688 ACN121993688 ACN 121993688ACN-121993688-A

Abstract

The application relates to a temporary plugging device for pipeline maintenance, which relates to the technical field of pipeline maintenance equipment, and comprises a plugging component and a reinforcing component, the plugging assembly comprises a plugging air bag, and an abrasion-resistant polyurethane protective layer is bonded on the outer circumferential surface of the plugging air bag. According to the application, the reinforcing component is arranged, the worm can be rotated by the hand wheel to drive the spur gear to rotate under the action of the worm wheel, the spur gear drives the rotating ring to rotate by the outer toothed ring, the rotating ring drives the plurality of spur gears to rotate simultaneously by the conical toothed ring, the bevel gear drives the threaded pipe to radially move and retract by the screw rod, and then the contact rod is driven to abut against the inner wall of the pipeline, so that the reinforcing component is fixed in the pipeline, the end part of the plugging air bag in the pipeline is supported by the arc-shaped inner wall of the supporting cover, the stability of the plugging air bag in the maintenance process is improved, the air bag is prevented from being displaced under the influence of pressure fluctuation in the pipeline, the plugging effect is prevented, and the normal operation of the maintenance operation is ensured.

Inventors

CHEN YONGLI
MENG YU
ZHANG LEI
SHI TIANMING
REN JIANHUA
WANG HUA
GENG ZHIJIA
BAI XIAOBO
LI TING
GUO XUEQIN

Assignees

北京通成达水务建设有限公司

Dates

Publication Date: 20260508
Application Date: 20260225

Claims (10)

1. The temporary plugging device for pipeline maintenance comprises a plugging assembly (1) and a reinforcing assembly (2), and is characterized in that the plugging assembly (1) comprises a plugging air bag (101), an abrasion-resistant polyurethane protective layer (102) is adhered to the outer circumferential surface of the plugging air bag (101), an air charging pipe (103) which is communicated with the end part of the plugging air bag (101) is fixedly connected with the end part of the plugging air bag, and a quick connector (104) is arranged at one end, far away from the plugging air bag (101), of the air charging pipe (103); The reinforcing component (2) comprises a base ring (201), bases (202) which are arranged at equal intervals are fixedly connected in the base ring (201), a screw rod (203) is fixedly connected in each base (202), a threaded pipe (204) is fixedly connected in each base (202), the outer circumferential surface of the screw rod (203) is fixedly connected with an inner threaded connection of the threaded pipe (204), one end, far away from the screw rod (203), of the threaded pipe (204) is fixedly connected with an abutting rod (205), a rotating ring (208) is rotatably connected in the base ring (201), a bevel gear ring (209) is fixedly connected in the base ring (208) through a fixing plate, a bevel gear (210) is fixedly connected in each screw rod (203) at one end in the base ring (201), the bevel gear (210) is meshed with the bevel gear ring (209), a rotating shaft (213) is rotatably connected to one end of the base ring (201), a gear (214) is fixedly sleeved on one end of the rotating ring (213), a rotating shaft (213) is fixedly connected to one end of the rotating ring (212), the worm wheel (215) is meshed with the worm (216), a hand wheel is fixedly connected to the end portion of the worm (216), a supporting cover (217) is fixedly connected to one side, close to the blocking air bag (101), of the base ring (201) through a fixing rod, the supporting cover (217) is in an arc-shaped arrangement, and the arc-shaped inner wall of the supporting cover (217) is in arc-shaped contact with the end portion of the blocking air bag (101).
2. The temporary plugging device for pipeline maintenance according to claim 1, wherein the plugging air bag (101) is a high-strength rubber air bag.
3. The temporary plugging device for pipeline maintenance according to claim 1, wherein two limiting blocks (206) are fixedly connected to the outer circumferential surface of each threaded pipe (204), two guide holes (207) are formed in each base (202), and the limiting blocks (206) are respectively and slidably connected to the inside of the guide holes (207).
4. The temporary plugging device for pipeline maintenance according to claim 1, wherein the inner wall of the base ring (201) is provided with a limit groove (211), and the outer edge of the rotating ring (208) is rotatably connected to the inside of the limit groove (211).
5. The temporary plugging device for pipeline maintenance according to claim 1, wherein two symmetrically arranged grips (218) are fixedly connected to the outer circumferential surface of the base ring (201), and a soft sleeve is sleeved on the outer circumferential surface of each grip (218).
6. The temporary plugging device for pipeline maintenance according to claim 1, further comprising a safety assembly (3), wherein the safety assembly (3) comprises a valve (301), a barometer (302), a safety valve (303), a barometer sensor (304) and an audible and visual alarm (305) which are arranged outside the inflation tube (103).
7. The temporary plugging device for pipeline maintenance according to claim 6, wherein the valve (301), the barometer (302), the safety valve (303) and the air pressure sensor (304) are sequentially arranged from far to near based on the plugging air bag (101).
8. The temporary plugging device for pipeline maintenance according to claim 6, wherein the outer surface of the air pressure sensor (304) is provided with a wireless communication module (306), and the air pressure sensor (304) is electrically connected to an external intelligent mobile device through the wireless communication module (306).
9. The temporary plugging device for pipeline maintenance according to claim 6, wherein a controller (307) is arranged on the outer surface of the audible and visual alarm (305), and the air pressure sensor (304) and the audible and visual alarm (305) are electrically connected to the controller (307).
10. The temporary plugging device for pipeline maintenance according to claim 1, wherein the abutting rod (205) is arranged along the axial direction of the base ring (201), and one end, far away from the threaded pipe (204), of the abutting rod (205) is fixedly connected with equidistant anti-slip protrusions.

Description

Temporary plugging device for pipeline maintenance Technical Field The invention relates to the technical field of pipeline maintenance equipment, in particular to a temporary plugging device for pipeline maintenance. Background The plugging device for pipeline maintenance is a special tool for temporarily closing the section of a pipeline, and has the core functions of blocking medium flow in the pipeline in a physical mode, creating an anhydrous and pressureless construction environment for maintenance, detection or reconstruction operation, and the plugging air bag is a common temporary plugging device for pipeline maintenance, fills the section of the pipeline by inflation and expansion, and realizes sealing and isolation by utilizing the friction force between the air bag wall and the pipeline. However, when the plugging air bag is used for plugging, displacement can occur due to the influence of medium pressure fluctuation in a pipeline, so that the plugging effect is not only influenced, medium leakage in the pipeline is caused, and the normal operation of maintenance operation is influenced, but also the surface of the air bag is easily scratched by sharp protrusions, rust particles and the like on the inner wall of the pipeline, the service life of the air bag is shortened, and the maintenance cost and the risk of operation interruption are increased. Disclosure of Invention The application aims to provide a temporary plugging device for pipeline maintenance, which aims to solve the problems in the background art. The temporary plugging device for pipeline maintenance comprises a plugging assembly and a reinforcing assembly, wherein the plugging assembly comprises a plugging air bag, the outer circumferential surface of the plugging air bag is adhered with a wear-resistant polyurethane protective layer, the end part of the plugging air bag is fixedly connected with an inflation tube which is communicated with the end part of the plugging air bag, and one end of the inflation tube, which is far away from the plugging air bag, is provided with a quick connector; The reinforcing component comprises a base ring, the inside fixedly connected with equidistance of base ring is arranged, every the inside of base is all rotated and is connected with the lead screw, every the inside of base is all sliding connection has the screwed pipe, the outer periphery of lead screw and the inside threaded connection of screwed pipe, the one end fixedly connected with conflict pole of lead screw is kept away from to the screwed pipe, the inside rotation of base ring is connected with the rotation ring, the inside of rotation ring is through fixed plate fixedly connected with bevel ring, every the lead screw is located the equal fixedly connected with bevel gear of one end of base ring inside, bevel gear meshes with the bevel ring, the outer periphery of rotation ring has fixedly cup jointed the straight-tooth ring, the one end rotation of base ring is connected with the pivot, the outer periphery of pivot has fixedly cup jointed the straight-tooth wheel, the outer periphery of pivot is fixedly connected with worm, the one end rotation of base ring is connected with the worm, with the worm meshes mutually, the tip fixedly connected with hand wheel of worm, one side that the base ring is close to the worm wheel is through the fixedly connected with bevel ring, the arc-shaped support cover is with the arc-shaped inner wall of arc-shaped support cover, the arc-shaped support cover is arranged with the arc-shaped inner wall of the arc-shaped support cover. Through adopting above-mentioned technical scheme, through the outside bonding wear-resisting polyurethane protective layer at shutoff gasbag, rely on wear-resisting, the scratch resistance characteristic of wear-resisting polyurethane material, can effectively resist the scraping of sharp-pointed arch, the corrosion granule etc. of pipeline inner wall, reduce the damage on gasbag surface, prolong the life of gasbag, reduce the frequency and the cost of changing the gasbag, guarantee shutoff quality. Through adopting above-mentioned technical scheme, through setting up the reinforcement subassembly, accessible hand wheel rotates the worm and drives the spur gear under the effect of worm wheel and rotate, the spur gear drives the rotation ring through outer ring gear and rotates, the rotation ring passes through the awl ring gear and drives a plurality of spur gears simultaneously and rotate, bevel gear then drive the screwed pipe through the lead screw and be the radioactivity and move and receive and release, and then drive and support the feeler lever and support the inner wall at the pipeline, fix the inside at the pipeline with the reinforcement subassembly, the arc inner wall through the supporting cover forms the support to the shutoff gasbag tip in the pipeline, improve the stability of shutoff gasbag in the maintenance operation process, avoid the gasbag to take pl