CN114165734A - Self-alarming urban water pipe butt joint device with leakage detection mechanism - Google Patents

Self-alarming urban water pipe butt joint device with leakage detection mechanism Download PDF

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Publication number
CN114165734A
CN114165734A CN202111185279.1A CN202111185279A CN114165734A CN 114165734 A CN114165734 A CN 114165734A CN 202111185279 A CN202111185279 A CN 202111185279A CN 114165734 A CN114165734 A CN 114165734A
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CN
China
Prior art keywords
detection mechanism
self
water pipe
leakage detection
air bag
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Pending
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CN202111185279.1A
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Chinese (zh)
Inventor
周攀
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Individual
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Individual
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Priority to CN202111185279.1A priority Critical patent/CN114165734A/en
Publication of CN114165734A publication Critical patent/CN114165734A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • F17D5/06Preventing, monitoring, or locating loss using electric or acoustic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1652Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
    • F16L55/1654Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention discloses a self-alarming type urban water pipeline butt joint device with a leakage detection mechanism, which comprises: the pipeline body penetrates through the middle part of the sleeve ring, the middle part of the upper end of the sleeve ring is provided with a central screw, and the central screw is provided with a movable rack; the moving piece is arranged on the inner side of the moving rack, and a piston plate is mounted at the upper end of the moving piece; the transverse rod is mounted on the side of the adjusting air bag, a buzzer for warning is mounted at the outer end of the transverse rod, and a positioning plate is mounted on the side of the adjusting air bag; the conveying pipe is used for connecting the adjusting air bag and the clamping block, and a sliding rod is arranged inside the clamping block. This from alarm type is equipped with city conduit interfacing apparatus of leak detection mechanism, can carry out the pipe connection back, improve the spacing fixed effect of pipeline, can in time remind people around after the pipeline takes place to leak simultaneously.

Description

Self-alarming urban water pipe butt joint device with leakage detection mechanism
Technical Field
The invention relates to the technical field of urban pipeline construction, in particular to a self-alarm type urban water pipeline butt joint device with a leakage detection mechanism.
Background
In order to prevent water accumulation on roads in cities, corresponding water conveying pipelines are generally assumed in the construction process, so that water accumulation diversion conveying is facilitated, and corresponding pipeline butt joint devices are generally used in the construction process of the water conveying pipelines for assembly among the pipelines.
However, the existing pipe butting device has the following problems:
like a geothermal transport pipeline connecting device who prevents leakage of application number CN202011193443.9, include wherein prevent that geothermal transport pipeline connecting device of leakage includes the connector and installs the head is put in inserting at connector both ends, still include with connector fixed connection, and be located the loop-forming member in the head outside is inserted,.
We have therefore proposed a self-alarming urban water pipe interface with leak detection means in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a self-alarm type urban water pipeline butt joint device with a leakage detection mechanism, which aims to solve the problem that the existing pipeline butt joint device in the market does not have a certain automatic alarm structure after the pipelines are connected, so that after the pipeline leaks, people around the pipeline can not be reminded to maintain the pipeline in the first time, and the condition of the pipeline leakage part is easy to aggravate gradually.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a from alarm type is equipped with city conduit interfacing apparatus of leak detection mechanism, includes:
the pipeline body penetrates through the middle part of the sleeve ring, the middle part of the upper end of the sleeve ring is provided with a central screw, and the central screw is provided with a movable rack;
the movable piece is arranged on the inner side of the movable rack, the upper end of the movable piece is provided with a piston plate, the lower end of the piston plate is arranged in the limiting sucker, and the limiting sucker is connected with the piston plate through a built-in spring for providing resetting elasticity;
the pipeline comprises a pipeline body, a guide block and a fixing column, wherein the lower end of the pipeline body is provided with a lateral through hole;
the transverse rod is mounted on the side of the adjusting air bag, a buzzer for warning is mounted at the outer end of the transverse rod, and a positioning plate is mounted on the side of the adjusting air bag;
the conveying pipe is used for connecting the adjusting air bag and the clamping block, a sliding rod is arranged inside the clamping block, a pushing block penetrates through the sliding rod, and the pushing block is connected with the sliding rod through a return spring;
first gasbag is installed the inside of joint piece, dock each other through the connecting pipe between first gasbag and the closed gasbag, and closed gasbag is installed the avris opening part of cover joint ring.
Preferably, the movable rack and the central screw rod are butted in a threaded connection mode, and the movable rack and the sleeve ring are assembled in a sliding connection mode.
Through adopting above-mentioned technical scheme, thereby utilize the rotation of central screw rod can make threaded connection's removal rack carry out the ascending removal of vertical direction.
Preferably, the movable piece is arranged in a V-shaped structure, and the surface of the protruding part of the movable piece is arranged in a sawtooth shape.
Through adopting above-mentioned technical scheme, thereby can contradict piston plate and guide block through the "V" shape structure of moving part.
Preferably, the protruding part of the movable piece is in meshed connection with the movable rack, and a rotating structure is formed between the movable piece and the inner part of the sleeving ring.
Through adopting above-mentioned technical scheme, thereby the rotation of removal rack can make the moving part that the meshing is connected carry out synchronous revolution.
Preferably, the lower end opening of the limiting sucker is matched with the surface of the pipeline body, and the inner cavity of the limiting sucker is attached to the lower end of the piston plate.
Through adopting above-mentioned technical scheme, coincide each other between spacing sucking disc and the pipeline body to can make the stable attached surface of pipeline body of spacing sucking disc.
Preferably, the hollow part in the guide block is filled with quick lime, and protrusions for improving friction force are uniformly distributed on the contact surface of the guide block and the pipeline body.
Through adopting above-mentioned technical scheme, thereby utilize guide block surface evenly distributed's arch can improve and the pipeline body between the contact friction power, thereby can take place the reaction with water through the inside quick lime of guide block simultaneously.
Preferably, the outer wall of the supporting baffle is attached to the inner wall of the guide block, and the supporting baffle is in sliding connection with the guide block.
Through adopting above-mentioned technical scheme, thereby can block the quick lime that the guide block inside was filled through setting up of holding back, prevent that it from appearing dropping.
Preferably, the outer end evenly distributed of supporting baffle has mobilizable linking ball for reduce frictional force, and link up and laminate mutually between the inside cavity of ball and fixed column.
Through adopting above-mentioned technical scheme, utilize the setting up that links up the ball to make the contact frictional force between holding back and the fixed column inner wall become rolling friction, reduce holistic friction loss from this.
Preferably, the first air bag and the pushing block are located on the same vertical straight line, and an elastic telescopic structure is formed between the pushing block and the sliding rod through a return spring.
Through adopting above-mentioned technical scheme, thereby utilize reset spring's setting can make to promote to kick back and reset after the piece removes.
Compared with the prior art, the invention has the beneficial effects that: the self-alarming urban water pipe butt joint device with the leakage detection mechanism can improve the limiting and fixing effect on the pipeline after the pipeline is connected, and can timely remind surrounding people after the pipeline leaks;
1. the movable part is arranged, the piston plate can move upwards on the limiting sucker through the rotation of the movable part, air in the limiting sucker is pumped out at the moment, the pipeline body is further stably sucked, meanwhile, the guide block can move upwards through the rotation of the movable part, and the guide block can further lift and limit the pipeline body through the movement of the guide block, so that the stability of limiting the pipeline body is improved;
2. the guide block is arranged, when leakage occurs, water flow can enter the guide block and react with quick lime, the adjusting air bag can be expanded by utilizing an exothermic reaction when reacting with the quick lime, the transverse rod can be pushed to move by the expansion of the adjusting air bag, a switch on the buzzer is extruded, and a certain alarm reminding effect is achieved by utilizing the sound emitted by the buzzer;
3. the supporting baffle is arranged, and through the sliding connection between the supporting baffle and the guide block, after quicklime reacts with water flow, the reacted object can be conveniently taken out of the guide block, and meanwhile, the contact friction between the supporting baffle and the inner wall of the fixed column can be reduced through the connecting balls arranged on the side of the supporting baffle, and the whole friction loss of the supporting baffle is reduced;
4. be provided with closed gasbag, be heated the inflation back when adjusting the gasbag to can extrude it through the locating plate with adjusting the gasbag and laminating each other, adjust inside gas of gasbag this moment and enter into inside the joint piece through the conveyer pipe, and utilize and promote the piece rebound and extrude first gasbag, and then can make gas enter into closed gasbag's inside through first gasbag pressurized back, make the closed gasbag after the inflation will cup joint the opening gap jam of ring avris, prevent that the rivers of leaking from outwards spilling over.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic side sectional view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the piston plate and the limiting suction cup of the present invention;
FIG. 5 is a cross-sectional view of the guide block and the fixing post of the present invention;
FIG. 6 is a schematic view of the bottom cross-section of the guide block and the support shield of the present invention;
FIG. 7 is a schematic cross-sectional view of the latch block and the slide bar of the present invention;
FIG. 8 is a schematic side view of the present invention.
In the figure: 1. a sleeving connection ring; 2. a pipe body; 3. a central screw; 4. moving the rack; 5. a movable member; 6. a piston plate; 7. a limiting sucker; 8. a built-in spring; 9. a guide block; 10. a lateral through opening; 11. a support baffle; 12. connecting the ball bearings; 13. fixing a column; 14. adjusting the air bag; 15. a buzzer; 16. a transverse bar; 17. a delivery pipe; 18. a clamping block; 19. a slide bar; 20. a pushing block; 21. a return spring; 22. a first air bag; 23. a connecting pipe; 24. sealing the air bag; 25. and (7) positioning the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a self-alarming type urban water pipe butt joint device provided with a leakage detection mechanism comprises a sleeve joint ring 1, a pipe body 2, a central screw rod 3, a moving rack 4, a moving part 5, a piston plate 6, a limiting sucker 7, a built-in spring 8, a guide block 9, a lateral through hole 10, a supporting baffle 11, a connecting ball 12, a fixed column 13, an adjusting air bag 14, a buzzer 15, a transverse rod 16, a conveying pipe 17, a clamping block 18, a sliding rod 19, a pushing block 20, a reset spring 21, a first air bag 22, a connecting pipe 23, a closed air bag 24 and a positioning plate 25;
the pipeline body 2 is arranged in the middle of the sleeve joint ring 1 in a penetrating mode, a central screw rod 3 is arranged in the middle of the upper end of the sleeve joint ring 1, and a movable rack 4 is arranged on the central screw rod 3;
the movable piece 5 is arranged on the inner side of the movable rack 4, the upper end of the movable piece 5 is provided with a piston plate 6, the lower end of the piston plate 6 is arranged in a limiting sucker 7, and the limiting sucker 7 is connected with the piston plate 6 through an internal spring 8 for providing resetting elasticity;
the guide block 9 is arranged at the lower end of the pipeline body 2, a lateral through hole 10 is formed in the side of the guide block 9, a supporting baffle 11 is arranged inside the lower end of the guide block 9, a connecting ball 12 for reducing friction force is arranged on the side of the supporting baffle 11, the lower end of the guide block 9 is arranged inside a fixed column 13, and an adjusting air bag 14 is sleeved outside the guide block 9;
the transverse rod 16 is arranged on the side of the adjusting air bag 14, the buzzer 15 for alarming and reminding is arranged at the outer end of the transverse rod 16, and the positioning plate 25 is arranged on the side of the adjusting air bag 14;
the conveying pipe 17 is used for connecting the adjusting air bag 14 and the clamping block 18, a sliding rod 19 is arranged inside the clamping block 18, a pushing block 20 is arranged on the sliding rod 19 in a penetrating mode, and the pushing block 20 is connected with the sliding rod 19 through a return spring 21;
the first air bag 22 is installed inside the clamping block 18, the first air bag 22 and the closed air bag 24 are mutually butted through a connecting pipe 23, and the closed air bag 24 is installed at the side opening of the sleeving ring 1.
The movable rack 4 is butted with the central screw rod 3 in a threaded connection mode, and the movable rack 4 is assembled with the socket ring 1 in a sliding connection mode.
The movable piece 5 is arranged in a V-shaped structure, and the surface of the convex part of the movable piece 5 is arranged in a sawtooth shape.
The protruding part of the moving part 5 is meshed with the moving rack 4, and a rotating structure is formed between the moving part 5 and the inner part of the sleeving ring 1.
The lower end opening of the limiting sucker 7 is matched with the surface of the pipeline body 2, and the inner cavity of the limiting sucker 7 is attached to the lower end of the piston plate 6.
The hollow part in the inside of guide block 9 is filled with quick lime, and the contact surface evenly distributed of guide block 9 and pipeline body 2 has the arch that improves frictional force.
As shown in fig. 1-4, when the pipe body 2 needs to be butted, at this time, the pipe body 2 is inserted into the socket ring 1, at this time, the central screw 3 is rotated, the rotation of the central screw 3 can make the movable rack 4 move downwards, the movable member 5 which is engaged and connected can be rotated by the movement of the movable rack 4, the end of the movable member 5 can be abutted against the piston plate 6 and the guide block 9 by the rotation of the movable member 5, at this time, the piston plate 6 and the guide block 9 move respectively inside the limit suction cup 7 and inside the fixed column 13 after being stressed, when the piston plate 6 moves, the air inside the limit suction cup 7 can be pumped out, so that even if the limit suction cup 7 is stably adsorbed on the surface of the pipe body 2, and the guide block 9 can be abutted against the pipe body 2 after moving upwards, thereby the limit fixation of the pipe body 2 can be realized, at the same time, the contact friction force between the pipe body 2 and the guide block 9 can be increased by the protrusion of the surface.
The outer wall of the supporting baffle 11 is attached to the inner wall of the guide block 9, and the supporting baffle 11 is in sliding connection with the guide block 9.
Outer end evenly distributed of supporting baffle 11 has mobilizable linking ball 12 for reduce frictional force, and laminate mutually between the inside cavity of linking ball 12 and fixed column 13.
The first air bag 22 and the pushing block 20 are positioned on the same vertical straight line, and an elastic telescopic structure is formed between the pushing block 20 and the sliding rod 19 through a return spring 21.
As shown in fig. 1, 2 and 5-8, when the joint of the pipeline body 2 leaks, the water flows overflow outwards, enters the inside of the guide block 9 through the lateral through hole 10 at the side of the guide block 9, reacts with the quicklime inside the guide block 9, rapidly heats up the guide block 9 through the heat release reaction when the water flows react with the quicklime, the attached adjusting airbag 14 can expand after the temperature of the guide block 9 is raised, the transverse rod 16 can be pushed to move outwards by the expansion of the adjusting airbag 14, the switch on the buzzer 15 can be pressed by the movement of the transverse rod 16, the sound sent by the buzzer 15 can further automatically alarm and remind, and when the adjusting airbag 14 expands, because the positioning plate 25 and the adjusting airbag 14 are attached to each other, the expansion of the adjusting airbag 14 can further collide with the positioning plate 25, therefore, it enters into the inside of joint piece 18 through conveyer pipe 17 to adjust its inside gas after gasbag 14 receives the extrusion, can make after the inside gas of joint piece 18 increases and promote piece 20 rebound, utilize the removal that promotes piece 20 and then can extrude first gasbag 22, first gasbag 22 can make inside gas enter into the inside of closed gasbag 24 and make it take place the inflation through connecting pipe 23 after the pressurization, inflation through closed gasbag 24 and then can block up the gap behind cover joint ring 1 and the pipeline body 2 butt joint, from this avoid rivers appear leaking the back and outwards flow out through the opening of cover joint ring 1 left and right sides.
The working principle is as follows: when the self-alarming type urban water pipeline butt joint device provided with the leakage detection mechanism is used, firstly, as shown in figures 1-8, the movable rack 4 can be moved by utilizing the rotation of the central screw rod 3, the movable piece 5 can be rotated by the movement of the movable piece 4, the piston plate 6 and the guide block 9 can be jacked up by the rotation of the movable piece 5, therefore, the gas in the limiting sucker 7 can be pumped out by the movement of the piston plate 6, the pipeline body 2 can be stably adsorbed, meanwhile, the pipeline body 2 can be further supported by the movement of the guide block 9, and after leakage occurs, the quicklime in the guide block 9 reacts with water to release heat, at the moment, the adjusting air bag 14 is heated to expand, and the transverse rod 16 can move U to extrude the switch of the buzzer 15 by adjusting the expansion of the air bag 14, at this time, the buzzer 15 sounds to give an automatic alarm, and meanwhile, after the adjustment air bag 14 is expanded, the internal gas can enter the inside of the clamping block 18 under the extrusion of the positioning plate 25, the internal gas of the first air bag 22 can enter the inside of the closed air bag 24 by utilizing the movement of the pushing block 20, and the leakage water flow can be prevented from overflowing outwards through the left and right opening gaps of the sleeving ring 1 by the expansion of the closed air bag 24.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a from alarm type is equipped with city water pipe interfacing apparatus of leak detection mechanism which characterized in that includes:
the pipeline body penetrates through the middle part of the sleeve ring, the middle part of the upper end of the sleeve ring is provided with a central screw, and the central screw is provided with a movable rack;
the movable piece is arranged on the inner side of the movable rack, the upper end of the movable piece is provided with a piston plate, the lower end of the piston plate is arranged in the limiting sucker, and the limiting sucker is connected with the piston plate through a built-in spring for providing resetting elasticity;
the pipeline comprises a pipeline body, a guide block and a fixing column, wherein the lower end of the pipeline body is provided with a lateral through hole;
the transverse rod is mounted on the side of the adjusting air bag, a buzzer for warning is mounted at the outer end of the transverse rod, and a positioning plate is mounted on the side of the adjusting air bag;
the conveying pipe is used for connecting the adjusting air bag and the clamping block, a sliding rod is arranged inside the clamping block, a pushing block penetrates through the sliding rod, and the pushing block is connected with the sliding rod through a return spring;
first gasbag is installed the inside of joint piece, dock each other through the connecting pipe between first gasbag and the closed gasbag, and closed gasbag is installed the avris opening part of cover joint ring.
2. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the movable rack is in butt joint with the central screw rod in a threaded connection mode, and the movable rack and the sleeve ring are assembled in a sliding connection mode.
3. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the movable piece is arranged to be of a V-shaped structure, and the surface of the protruding part of the movable piece is arranged to be of a sawtooth shape.
4. The self-alarm urban water pipe butting device provided with the leakage detection mechanism according to claim 2 or 3, characterized in that: the protruding part of the moving part is meshed with the moving rack, and a rotating structure is formed between the moving part and the inner part of the sleeve ring.
5. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the lower end opening of the limiting sucker is matched with the surface of the pipeline body, and the inner cavity of the limiting sucker is attached to the lower end of the piston plate.
6. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the inside hollow part of guide block is filled with quick lime, and the contact surface evenly distributed of guide block and pipeline body has the arch that improves frictional force.
7. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the outer wall of the supporting baffle is attached to the inner wall of the guide block, and the supporting baffle is connected with the guide block in a sliding mode.
8. The self-alarm urban water pipe butting device provided with a leakage detection mechanism according to claim 1 or 7, characterized in that: the outer end evenly distributed of supporting baffle has mobilizable linking ball for reduce frictional force, and link up and laminate mutually between the inside cavity of ball and fixed column.
9. The self-alarming urban water pipe butting device provided with the leakage detection mechanism according to claim 1, characterized in that: the first air bag and the pushing block are located on the same vertical straight line, and an elastic telescopic structure is formed between the pushing block and the sliding rod through a return spring.
CN202111185279.1A 2021-10-12 2021-10-12 Self-alarming urban water pipe butt joint device with leakage detection mechanism Pending CN114165734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111185279.1A CN114165734A (en) 2021-10-12 2021-10-12 Self-alarming urban water pipe butt joint device with leakage detection mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111185279.1A CN114165734A (en) 2021-10-12 2021-10-12 Self-alarming urban water pipe butt joint device with leakage detection mechanism

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Publication Number Publication Date
CN114165734A true CN114165734A (en) 2022-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111185279.1A Pending CN114165734A (en) 2021-10-12 2021-10-12 Self-alarming urban water pipe butt joint device with leakage detection mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114607952A (en) * 2022-05-11 2022-06-10 海门金佰恒不锈钢制品有限公司 Water delivery steel pipe with leak and remind function
CN115823492A (en) * 2023-02-20 2023-03-21 山西省城乡规划设计研究院有限公司 Self-locking type water supply pipe component
CN117662845A (en) * 2024-01-29 2024-03-08 安利达(山东)智控科技集团股份有限公司 Emergency leakage-proof valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114607952A (en) * 2022-05-11 2022-06-10 海门金佰恒不锈钢制品有限公司 Water delivery steel pipe with leak and remind function
CN115823492A (en) * 2023-02-20 2023-03-21 山西省城乡规划设计研究院有限公司 Self-locking type water supply pipe component
CN115823492B (en) * 2023-02-20 2023-05-09 山西省城乡规划设计研究院有限公司 Self-locking water supply pipe component
CN117662845A (en) * 2024-01-29 2024-03-08 安利达(山东)智控科技集团股份有限公司 Emergency leakage-proof valve
CN117662845B (en) * 2024-01-29 2024-04-16 安利达(山东)智控科技集团股份有限公司 Emergency leakage-proof valve

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Application publication date: 20220311

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