CN216479346U - Water stop ring with integrated hinge rubber ring - Google Patents

Water stop ring with integrated hinge rubber ring Download PDF

Info

Publication number
CN216479346U
CN216479346U CN202122092879.5U CN202122092879U CN216479346U CN 216479346 U CN216479346 U CN 216479346U CN 202122092879 U CN202122092879 U CN 202122092879U CN 216479346 U CN216479346 U CN 216479346U
Authority
CN
China
Prior art keywords
water stop
ring
stop ring
rubber
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122092879.5U
Other languages
Chinese (zh)
Inventor
赵汝森
刘祺平
龙飞翔
陈志东
陈思乐
陈赞辉
温佩文
邓仲胜
李强
朱熙
罗振韬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
Original Assignee
Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd filed Critical Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
Application granted granted Critical
Publication of CN216479346U publication Critical patent/CN216479346U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/06—Accessories therefor, e.g. anchors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The utility model relates to a water stop ring with an integrated hinge rubber ring, which comprises an embedded steel ring plate which is arranged around the opening of a well hole and is fixedly arranged on a lining wall in the well, wherein one side of the embedded steel ring plate, which is far away from the lining wall in the well, is sequentially provided with a rubber water stop ring and a steel pressure ring; the embedded steel ring plate, the rubber water stop ring and the steel pressure ring are fixedly connected through bolts; the rubber water stop rings are wrapped on the peripheries of the hinge pressing plates, and the hinge pressing plates comprise first hinges and second hinges which are rotatably connected with the first hinges through rotating ends; the first hinge is arranged at the upper end of the rubber water stop ring, and the bolt penetrates through the steel pressure ring, the rubber water stop ring, the first hinge in the rubber water stop ring and the embedded steel ring plate to be fixed; the second hinge is arranged at the lower end of the rubber water stop ring, the second hinge in the lower end of the rubber water stop ring is folded inwards towards the opening of the well hole together around the rotating end and the lower end of the rubber water stop ring, the outer wall of the rubber water stop ring is abutted against the outer wall of the top pipe, and the second hinge fixes the lower end of the rubber water stop ring.

Description

Water stop ring with integrated hinge rubber ring
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of pipe jacking construction, in particular to a water stop ring with an integrated hinge rubber ring.
[ background of the utility model ]
In pipe jacking engineering, in order to enable a pipe to smoothly enter and exit a hole from a working well, a mode that a reserved hole opening of the working well is slightly larger than the outer diameter of a pipe joint is generally adopted, effective measures are required to be taken to seal the gap during jacking, otherwise, underground water and silt flow into the working well from the gap, collapse of the ground surface at the upper part of the hole opening can be caused, and even accidents can be caused. Therefore, the water stopping at the hole opening in the pipe jacking process is a link which cannot be ignored. The water stopping at the hole opening is generally realized by arranging a rubber flange at the hole opening for water stopping, but the problem of poor water stopping effect still exists, particularly the problem that underground water, silt and thixotropic slurry cannot be prevented from flowing to a working well from a gap between a pipe joint and a water stopping ring.
In the jacking process of the jacking pipe from the entrance to the cave, the water stop rubber ring is easy to deform due to continuous friction between the outer wall of the jacking pipe and the water stop rubber ring, so that a gap exists between the water stop rubber ring and the outer wall of the jacking pipe, a good anti-leakage effect cannot be guaranteed, the cave mouth water leakage phenomenon occurs, especially under the conditions of shallow underground water and much earth surface water seepage, the water leakage phenomenon is serious, the construction safety is difficult to guarantee, the rubber water stop ring is difficult to replace, and the jacking pipe construction work efficiency is greatly reduced.
Because the exposed metal hinge pressing plate has different corrosion damage degrees, the hinge pressing plate needs to be replaced irregularly and irregularly, the hinge pressing plate is abraded due to continuous friction between the outer wall of the jacking pipe and the end part of the hinge pressing plate, the hinge pressing plate also needs to be replaced irregularly and irregularly, the working efficiency is greatly reduced, and the friction resistance between the hinge pressing plate and the outer wall of the jacking pipe is large, so that the jacking pipe construction is not facilitated.
[ Utility model ] content
In order to solve the problems, the utility model provides a water stop ring with an integrated hinge rubber ring.
In order to achieve the purpose, the utility model provides the following technical scheme:
a water stop ring with an integrated hinge rubber ring comprises an embedded steel ring plate which is arranged around an opening of a well and fixedly arranged on a lining wall in the well, wherein the rubber water stop ring and a steel compression ring are sequentially arranged on one side of the embedded steel ring plate, which is far away from the lining wall in the well; the embedded steel ring plate, the rubber water stop ring and the steel pressure ring are fixedly connected through bolts; the rubber water stop ring is detachably provided with an air bag positioned between the inner wall of the well and the inner wall of the rubber water stop ring; the rubber water stop rings are wrapped on the peripheries of the hinge pressing plates, and the hinge pressing plates comprise first hinges and second hinges which are rotatably connected with the first hinges through rotating ends; the first hinge is arranged at the upper end of the rubber water stop ring, and the bolt penetrates through the steel pressure ring, the rubber water stop ring, the first hinge in the rubber water stop ring and the embedded steel ring plate to be fixed; the second hinge is arranged at the lower end of the rubber water stop ring, the second hinge in the lower end of the rubber water stop ring is folded inwards towards the opening of the well hole together around the rotating end and the lower end of the rubber water stop ring, the outer wall of the rubber water stop ring is abutted against the outer wall of the top pipe, and the second hinge fixes the lower end of the rubber water stop ring.
As a preferred embodiment, further defined is: the rubber water stop ring and the hinge pressing plate are integrally formed through vulcanization.
As a preferred embodiment, further defined is: the rubber water stop ring is internally provided with a vent pipe in a penetrating manner, one end of the vent pipe extends into the opening of the well and is connected with the air bag through a check valve, the other end of the vent pipe can be externally connected with an air-entrapping device, and the air bag is inflated and expanded to enable the air bag to be abutted against the inner wall of the well and the inner wall of the rubber water stop ring or against the inner wall of the well and the outer wall of the jacking pipe.
As a preferred embodiment, further defined is: the breather pipe is fixedly connected with the rubber water stop ring in a sliding manner.
As a preferred embodiment, further defined is: the vent pipe and the rubber water stop ring are integrally formed through vulcanization.
As a preferred embodiment, further defined as: and the outer wall of the rubber water stop ring and the outer wall of the jacking pipe are extruded to form a sealing surface layer.
As a preferred embodiment, further defined is: the embedded steel ring plate and the lining wall in the well are fixed through an anchoring part, and the anchoring part and the embedded steel ring plate are welded and fixed.
The utility model has the beneficial effects that: the water stop ring prevents the water leakage and slurry leakage caused by the outward turning of the rubber seal ring of the rubber water stop ring, the hinge pressing plate is arranged in the rubber water stop ring, the hinge pressing plate is prevented from being in contact with the outer wall of the push pipe to be worn and damaged and being exposed outside for a long time to be corroded and damaged, the friction force between the hinge pressing plate and the outer wall of the push pipe is reduced during the push pipe, the push pipe pushing speed is improved, the work efficiency is improved, the air bag and the rubber water stop ring are tightly attached to the outer wall of the push pipe, the hinge pressing plate stabilizes the position of the rubber water stop ring, and the air bag, the rubber water stop ring and the hinge pressing plate are mutually matched, so that the water stop ring and other parts can be replaced during the water stop during the construction process, the stability of the device is improved, the safety during the construction is ensured, and the work efficiency of the push pipe construction is improved.
[ description of the drawings ]
FIG. 1 is a plan view of a water stop opening of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of one embodiment at A of FIG. 2;
FIG. 4 is an enlarged view of a portion of one embodiment at A of FIG. 2;
fig. 5 is an enlarged view of a portion of one embodiment at a of fig. 2.
[ detailed description ] embodiments
The utility model is described in further detail below with reference to the following figures and detailed description:
as shown in attached drawings 1 to 5, the water stop ring with the integrated hinge rubber ring comprises an embedded steel ring plate 1 which is arranged around the opening of a well opening 8 and is fixedly arranged on an inner lining wall 7 of the well, wherein a rubber water stop ring 2 and a steel pressure ring 3 are sequentially arranged on one side of the embedded steel ring plate 1, which is far away from the inner lining wall 7 of the well; the embedded steel ring plate 1, the rubber water stop ring 2 and the steel pressure ring 3 are fixedly connected through the bolt 5, so that the device is more stable; the rubber water stop ring 2 is detachably provided with an air bag positioned between the inner wall of the well hole 8 and the inner wall of the rubber water stop ring 2; the rubber water stop ring 2 is wrapped on the periphery of the hinge pressing plates 4, and the hinge pressing plates 4 which are uniformly distributed are arranged in the rubber water stop ring 2, so that the stability of the rubber water stop ring 2 is improved, and the shaping of the rubber water stop ring 2 is facilitated; the hinge pressing plate 4 comprises a first hinge 41 and a second hinge 42 which is rotatably connected with the first hinge 41 through a rotating end 43; the first hinge 41 is arranged at the upper end of the rubber water stop ring 2, and the bolt 5 penetrates through the steel pressure ring 3, the rubber water stop ring 2, the first hinge 41 in the rubber water stop ring 2 and the embedded steel ring plate 1 to be fixed; the second hinge 42 is arranged at the lower end of the rubber water stop ring 2, the lower end of the rubber water stop ring 2 is turned inwards towards the hole of the well hole 8, and the outer wall of the rubber water stop ring 2 is abutted with the outer wall of the top pipe 6; the second hinge 42 in the lower end of the rubber water stop ring 2 is folded inwards around the rotating end 43 and the lower end of the rubber water stop ring 2 in the same direction to the opening of the well hole 8, the outer wall of the rubber water stop ring 2 is abutted to the outer wall of the push pipe 6, the lower end of the rubber water stop ring 2 is fixed by the second hinge 42, the hinge fixes the rubber water stop ring 2, the rubber ring is prevented from being turned outwards, the sealing performance between the outer wall of the rubber water stop ring and the outer wall of the push pipe is improved, and the water stop effect is enhanced.
The rubber water stop ring 2 and the hinge pressing plate 4 are integrally formed through vulcanization, so that the condition that the hinge pressing plate is exposed outside for a long time to be corroded and damaged is prevented, the abrasion caused by the contact of the hinge pressing plate and the outer wall of the top pipe 6 is reduced, and the friction of the outer wall of the top pipe is reduced.
Vent pipes 22 penetrate through the rubber water stop ring 2, one end of each vent pipe 22 extends into the opening of the corresponding well opening 8 and is connected with the corresponding air bag 21 through check valves 23, at least 1 check valve 23 is arranged, and the number of the vent pipes 22 is equal to that of the check valves 23; the other end of the vent pipe 22 can be externally connected with an air-entrapping device which inflates the air bag; the air bag 21 is inflated and expanded to enable the air bag 21 to abut against the inner wall of the well 8 and the inner wall of the rubber water stop ring 2 or abut against the inner wall of the well 8 and the outer wall of the top pipe 6, the air bag 21 is expanded and extrudes the inner wall of the well 8 and the inner wall of the rubber water stop ring 2 to seal or the air bag 21 is expanded and extrudes the inner wall of the well 8 and the outer wall of the top pipe 6 to seal, and water leakage is prevented.
The vent pipe 22 is fixedly connected with the rubber water stop ring 2 in a sliding way, so that the position of the air bag can be conveniently adjusted.
The vent pipe 22 and the rubber water stop ring 2 are integrally formed by vulcanization, so that the integral sealing performance of the device is enhanced.
The outer wall of the rubber water stop ring 2 and the outer wall of the jacking pipe 6 are extruded to form a sealing layer 10, and the sealing layer blocks liquid in the well hole.
The embedded steel ring plate 1 is fixedly anchored through the fixing part 9 with the lining wall 7 in the well, the fixing part 9 is fixedly connected with the embedded steel ring plate 1, the fixing part 9 and the embedded steel ring plate 1 are fixedly welded and then anchored in the lining wall 7, anchoring is more firm, and stability and safety of the device in use are guaranteed.
Embodiment 1 is the scheme of breather pipe and rubber seal integrated into one piece:
firstly, a plurality of embedded bolts are arranged on the wall of the opening along the circumferential direction, the air bag is arranged on a breather pipe which is connected with the rubber water stop ring in a sliding manner through at least one check valve, and then the embedded bolts are sequentially provided with an embedded steel ring plate, the rubber water stop ring and a steel pressure ring and are compressed tightly through a compression nut.
As shown in attached figures 2 to 3, after the pipe jacking machine is jacked to a tunnel door and the head part of the pipe jacking machine penetrates through the steel compression ring, the air bag arranged between the inner wall of the well and the inner wall of the rubber water stop ring is inflated by the air bag through the vent pipe to control the inflation of the air bag, the air bag is inflated to extrude the inner wall of the well and further extrude the inner wall of the rubber water stop ring to be tightly attached to the outer wall of the pipe jacking, the hinge pressing plate in the rubber water stop ring stabilizes the position of the rubber water stop ring, the rubber ring is prevented from turning outwards, the hinge is prevented from being corroded and damaged after being exposed outside for a long time, the friction between the outer wall of the pipe jacking and the end part of the hinge pressing plate is eliminated, the jacking rate of the pipe jacking is improved, the working efficiency is improved, and the air bag, the rubber water stop ring and the hinge pressing plate are mutually matched to realize sealing and water stopping so as to ensure good anti-seepage effect.
As shown in the attached drawing 4, when the part needs to be replaced, the air bag is continuously inflated, the air bag expands towards the inside of the well hole and contacts with the inner wall of the well hole and the outer wall of the jacking pipe, the air bag extrudes the inner wall of the well hole and seals and stops water with the outer wall of the jacking pipe, at the moment, the compression nut, the steel compression ring, the rubber water stop ring and the vent pipe can be disassembled in sequence to replace the air bag, after the new part is replaced and reinstalled, the air bag is deflated through the check valve switch to extrude the inner wall of the well hole again, the inner wall of the rubber water stop ring is further extruded to be tightly attached to the outer wall of the jacking pipe for sealing and stopping water, the problem that the part caused by the construction process is abraded, the difficulty of replacement cannot be achieved or the difficulty of replacement is high is solved, and the stability and the safety of construction are improved.
Embodiment 2 is the scheme of breather pipe and rubber seal slidable fixed connection:
at first set up a plurality of buried bolt in advance along the circumferencial direction on the entrance to a cave wall of entrance to a cave, install the gasbag through at least one check valve on the breather pipe with rubber sealing ring sliding connection, the rethread buried bolt is installed buried steel ring plate, rubber sealing ring and steel clamping ring in advance and is compressed tightly through gland nut in proper order.
As shown in attached figures 2 to 3, after the pipe jacking machine is jacked to a tunnel door and the head part of the pipe jacking machine penetrates through the steel compression ring, the air bag arranged between the inner wall of the well and the inner wall of the rubber water stop ring is inflated by the air bag through the vent pipe to control the inflation of the air bag, the air bag is inflated to extrude the inner wall of the well and further extrude the inner wall of the rubber water stop ring to be tightly attached to the outer wall of the pipe jacking, the hinge pressing plate in the rubber water stop ring stabilizes the position of the rubber water stop ring, the rubber ring is prevented from turning outwards, the hinge is prevented from being corroded and damaged after being exposed outside for a long time, the friction between the outer wall of the pipe jacking and the end part of the hinge pressing plate is eliminated, the jacking rate of the pipe jacking is improved, the working efficiency is improved, and the air bag, the rubber water stop ring and the hinge pressing plate are mutually matched to realize sealing and water stopping so as to ensure good anti-seepage effect.
As shown in attached figure 5, when the part needs to be replaced, the position of the air bag is adjusted by pushing and pulling the air bag through the length of the air pipe which is arranged in the rubber water stop ring and extends out of the inner wall of the rubber water stop ring after the air bag is deflated through a check valve switch, the air bag is moved between the inner wall of the well and the outer wall of the top pipe, the air bag is inflated again to enable the air bag to extrude the inner wall of the well and the outer wall of the top pipe for sealing and stopping water, at the moment, the compression nut, the steel compression ring, the rubber water stop ring and the air pipe can be disassembled in sequence for replacement, after the new part is replaced, the air pipe which is arranged in the rubber water stop ring is controlled to adjust the position of the air bag, the air bag is moved between the inner wall of the well and the inner wall of the rubber water stop ring is extruded again to enable the inner wall of the rubber water stop ring to be tightly attached to the outer wall of the top pipe for sealing and stopping water, thereby continuing the construction, the problem of the part wearing and tearing that cause the work progress and can't be changed or the change degree of difficulty is big is solved, the stability and the security of construction have been improved.

Claims (7)

1. A water stop ring with an integrated hinge rubber ring comprises an embedded steel ring plate (1) which is arranged at the opening of a well opening (8) in a surrounding manner and is fixedly arranged on a lining wall (7) in the well, wherein a rubber water stop ring (2) and a steel pressure ring (3) are sequentially arranged on one side, away from the lining wall (7), of the embedded steel ring plate (1); the embedded steel ring plate (1), the rubber water stop ring (2) and the steel pressure ring (3) are fixedly connected through bolts (5); the rubber water stop ring (2) is detachably provided with an air bag positioned between the inner wall of the well hole (8) and the inner wall of the rubber water stop ring (2); the method is characterized in that: the rubber water stop ring (2) is wrapped on the periphery of the hinge pressing plates (4), and each hinge pressing plate (4) comprises a first hinge (41) and a second hinge (42) which is rotatably connected with the first hinge (41) through a rotating end (43); the first hinge (41) is arranged at the upper end of the rubber water stop ring (2), and the bolt (5) penetrates through the steel pressure ring (3), the rubber water stop ring (2), the first hinge (41) in the rubber water stop ring (2) and the embedded steel ring plate (1) to be fixed; the second hinge (42) is arranged at the lower end of the rubber water stop ring (2), the second hinge (42) in the lower end of the rubber water stop ring (2) is folded inwards towards the opening of the well hole (8) together around the rotating end (43) and the lower end of the rubber water stop ring (2), the outer wall of the rubber water stop ring (2) is abutted against the outer wall of the top pipe (6), and the second hinge (42) fixes the lower end of the rubber water stop ring (2).
2. A water stop ring with an integral hinge rubber ring as claimed in claim 1, wherein: the rubber water stop ring (2) and the hinge pressing plate (4) are integrally formed through vulcanization.
3. A water stop ring with an integral hinge rubber ring as claimed in claim 2, wherein: run through in rubber seal (2) and be provided with breather pipe (22), the one end of breather pipe (22) is connected with gasbag (21) through check valve (23) in stretching into the entrance to a cave of well hole (8), the other end of breather pipe (22) can external air entrainment device, gasbag (21) are aerifyd the inflation and are made gasbag (21) butt is on well hole (8) inner wall and rubber seal (2) inner wall or the butt is in on well hole (8) inner wall and push pipe (6) outer wall.
4. A water stop ring with an integral hinge rubber ring as claimed in claim 3, wherein: the vent pipe (22) is fixedly connected with the rubber water stop ring (2) in a sliding manner.
5. A water stop ring with an integral hinge rubber ring as claimed in claim 3, wherein: the vent pipe (22) and the rubber water stop ring (2) are integrally formed through vulcanization.
6. A water stop ring with an integral hinge rubber ring as claimed in claim 4 or 5, wherein: the outer wall of the rubber water stop ring (2) and the outer wall of the top pipe (6) are extruded to form a sealing surface layer (10).
7. A water stop ring with an integral hinge rubber ring as claimed in claim 6, wherein: the embedded steel ring plate (1) and the lining wall (7) in the well are anchored and fixed through a fixing part (9), and the fixing part (9) is fixedly connected with the embedded steel ring plate (1).
CN202122092879.5U 2021-02-04 2021-08-31 Water stop ring with integrated hinge rubber ring Active CN216479346U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120324452 2021-02-04
CN2021203244520 2021-02-04

Publications (1)

Publication Number Publication Date
CN216479346U true CN216479346U (en) 2022-05-10

Family

ID=78658069

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202122092879.5U Active CN216479346U (en) 2021-02-04 2021-08-31 Water stop ring with integrated hinge rubber ring
CN202111013191.1A Pending CN113700945A (en) 2021-02-04 2021-08-31 Water stop ring with integrated hinge rubber ring

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202111013191.1A Pending CN113700945A (en) 2021-02-04 2021-08-31 Water stop ring with integrated hinge rubber ring

Country Status (1)

Country Link
CN (2) CN216479346U (en)

Also Published As

Publication number Publication date
CN113700945A (en) 2021-11-26

Similar Documents

Publication Publication Date Title
WO2020151366A1 (en) Hydraulic constant-resistance deformation automatic pressure-relieving anchor bolt used in mining and operating method thereof
CN112031657B (en) Tunnel lining permeation destruction treatment device and construction method thereof
CN106703841B (en) A kind of pipe jacking tunnel is into water stop device for opening
CN112814609B (en) A sealed stopper device of recoverable formula for coal seam roof reinforcing operation
CN109780347B (en) Chemical pipeline antiseep flange
CN114135249A (en) Reusable and automatic pressure supplementing gas extraction drilling and sealing system and working method thereof
CN113048322A (en) Trenchless pipeline repairing device and pipeline repairing method thereof
CN209742840U (en) Rubber air bag for sealing face grouting hole
CN215258170U (en) Water stop ring with rubber ring air bag
CN216479346U (en) Water stop ring with integrated hinge rubber ring
CN112761682A (en) Water stop ring with split hinge rubber ring
CN212225159U (en) Horizontal MJS construction method pile orifice blowout-stopping sealing device
CN112815154A (en) Water stop ring with integrated hinge rubber ring
CN103195925B (en) Vent blocking device
CN217601490U (en) Open caisson structure based on gasbag is rectified
CN215256239U (en) Water stop ring with split hinge rubber ring
CN217714134U (en) Online water seal gate valve replacing device
CN216922078U (en) Reusable hole packer for underground coal mine gas extraction drill hole
CN216381321U (en) Reusable and automatic pressure supplementing gas extraction drilling and sealing system
CN115045330A (en) Inflatable active packer
CN205532441U (en) Sealing device
CN212537136U (en) Non-water-break secondary repair construction structure for ultra-large diameter pipeline
CN113653495B (en) Method and emergency device for preventing water and sand from rushing from shield tail
CN112922612A (en) Shield tunneling machine starting tunnel portal sealing and water stopping device and construction method thereof
CN218991631U (en) Starting well opening water stopping device for pipe jacking construction

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant