CN112943998A - Device for preventing water pipe from leaking water and automatically closing water - Google Patents

Device for preventing water pipe from leaking water and automatically closing water Download PDF

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Publication number
CN112943998A
CN112943998A CN202110118797.5A CN202110118797A CN112943998A CN 112943998 A CN112943998 A CN 112943998A CN 202110118797 A CN202110118797 A CN 202110118797A CN 112943998 A CN112943998 A CN 112943998A
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CN
China
Prior art keywords
water
water pipe
rod
rotating ring
fixedly connected
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Granted
Application number
CN202110118797.5A
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Chinese (zh)
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CN112943998B (en
Inventor
郝永俊
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Hunan Mingsu Plastic Technology Co ltd
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Individual
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Priority to CN202110118797.5A priority Critical patent/CN112943998B/en
Publication of CN112943998A publication Critical patent/CN112943998A/en
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Publication of CN112943998B publication Critical patent/CN112943998B/en
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    • 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
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K21/00Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04Self-closing valves, i.e. closing automatically after operation
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/05Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/05Arrangements of devices on wash-basins, baths, sinks, or the like for remote control of taps
    • E03C1/052Mechanical devices not being part of the tap, e.g. foot pedals
    • 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
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • 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
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644One-way valve
    • F16K31/0668Sliding valves
    • 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
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • 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
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention relates to the technical field of water facilities, and discloses a device for preventing a water pipe from leaking water and automatically closing water, which comprises a water pool, wherein a water leakage hole is formed in the top of a water pool table, a rotating ring is arranged inside the water pool, a convex body is fixedly connected to the inner wall of the rotating ring, a rotating blade is fixedly installed on the outer wall of the rotating ring, an air box is fixedly installed inside the rotating ring, an air bag groove is fixedly connected to the outer wall of the air box, and a compression rod is movably connected inside the air bag groove. This prevent water pipe automatic device that closes water that leaks through the gasbag constantly expands, begins to extrude the slide bar and remove to the right side, and the slide bar passes through connecting rod promotion slider, and the slider passes through catch bar promotion magnet, and magnet attracts the metal sheet, and the constraint to the convex pole has been removed to the ball, and the convex pole pops out and blocks up the water pipe with the concave groove cooperation to reached automatic water of closing, prevented to forget and close water, the automatic effect of leaking of water pipe problem emergence, the water economy resource.

Description

Device for preventing water pipe from leaking water and automatically closing water
Technical Field
The invention relates to the technical field of water facilities, in particular to a device for preventing water leakage of a water pipe and automatically closing water.
Background
Water is a source of life, water is needed everywhere in life, in order to control the flow and stop of water flow, many water-using facilities are brought to life, such as a kitchen sink in a kitchen, a washing sink in a toilet, a faucet of a street lane and the like in daily life, but because people may forget to turn off water after using up water, or water pipes are broken and broken or water leakage occurs due to loose valves due to various factors, waste of water resources is caused, and even the safety of lives and properties of people is threatened.
In order to solve the problems, the inventor provides a device for preventing the water pipe from leaking and automatically closing water, the device for preventing the water pipe from leaking and automatically closing water starts to extrude the sliding rod to move towards the right side through the continuous expansion of the air bag, the sliding rod pushes the sliding block through the connecting rod, the sliding block pushes the magnet through the pushing rod, the magnet attracts the metal plate, the ball releases the constraint on the convex rod, the convex rod is popped out to be matched with the concave groove to block the water pipe, and therefore the effects of automatically closing water, preventing water from being forgotten to be closed, automatically leaking water when the water pipe has problems and saving water resources are achieved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the device for preventing the water pipe from leaking and automatically closing water, which has the advantages of preventing forgetting to close water, preventing the water pipe from leaking, automatically closing water and saving water resources, and solves the problems of water waste caused by forgetting to close water, water pipe breakage or loose valve.
(II) technical scheme
In order to achieve the purposes of preventing forgetting to turn off water, preventing water leakage of a water pipe, automatically turning off water and saving water resources, the invention provides the following technical scheme: a device for preventing water pipe from leaking water and automatically closing water comprises a water pool, wherein a water leakage hole is formed in the top of the water pool, a rotating ring is arranged inside the water pool, a convex body is fixedly connected to the inner wall of the rotating ring, a rotating blade is fixedly mounted on the outer wall of the rotating ring, an air box is fixedly mounted inside the rotating ring, an air bag groove is fixedly connected to the outer wall of the air box, a compression rod is movably connected inside the air bag groove, a compression air bag is elastically connected between the compression rod and the air box, a compression block is fixedly connected to the top end of the compression rod, an air pipe is fixedly connected to the right side of the air box, air bags are fixedly connected to the head end and the tail end of the air pipe, a box body is fixedly mounted on the right side of the rotating ring inside the water pool table, a sliding groove is fixedly connected between the upper air bag and, the sliding surface of slider is connected with the slide bar, the right side fixedly connected with catch bar of slider, the right side fixedly connected with magnet of catch bar, the inside right side that is close to magnet of box is provided with the spacing groove, the inside elastic connection of spacing groove has the metal sheet, the right side movable mounting of metal sheet has the ball, swing joint has the convex pole between the inside ball of spacing groove, the right side of box is provided with the water pipe, the concave groove has been seted up on the right side of the inner wall convex pole of water pipe.
Preferably, the water leakage hole is positioned right below the water outlet of the water pipe.
Preferably, the height of the convex body is larger than the distance between the inner wall of the rotating ring and the compression block.
Preferably, the shape of the rotating blade is concave.
Preferably, the male rod is matched with the female groove.
Preferably, the sliding rod is connected with the sliding block through a connecting rod.
Preferably, the top of spacing groove is circular-arc, and round hole and diameter and convex pole diameter phase-match have been seted up at spacing inslot portion metal sheet center.
(III) advantageous effects
Compared with the prior art, the device for preventing the water pipe from leaking and automatically closing the water pipe has the following beneficial effects:
1. this prevent water pipe automatic device that closes water that leaks, through swivel leaf and rotating ring fixed connection, the shape of swivel leaf is the spill, when rivers through long-pending staying, under the effect of gravity, the swivel leaf drives the rotating ring and rotates, the convex body extrusion compression piece of rotating ring inner wall, compression piece promotes compression pole compression gasbag, gas accesss to the gasbag, gasbag extrusion slide bar removes, finally trigger the convex pole and plug up the concave groove, plug up the water pipe, thereby reach and prevent because the water pipe goes wrong, automatic effect of leaking.
2. This prevent water pipe from leaking device that closes water automatically, pass through connecting rod interconnect through slide bar and slider, magnet passes through the catch bar and is connected with the slider, constantly expand when the gasbag, begin to extrude the removal of slide bar looks right side, the slide bar passes through connecting rod promotion slider, the slider passes through catch bar promotion magnet, magnet attracts the metal sheet, the ball has been removed the constraint to the convex pole, the convex pole pops out and blocks up the water pipe with the concave groove cooperation, thereby reached automatic water of closing, prevent to forget the effect of closing water economy resource.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the gas compressing apparatus according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention.
In the figure: 1. a pool platform; 2. a water leakage hole; 3. a rotating ring; 4. a convex body; 5. rotating the leaf; 6. a gas tank; 7. an air bag groove; 8. a compression rod; 9. compressing the air bag; 10. compressing the block; 11. an air tube; 12. an air bag; 13. a box body; 14. a sliding groove; 15. a slider; 16. a slide bar; 17. a push rod; 18. a magnet; 19. a limiting groove; 20. a metal plate; 21. a ball; 22. a male rod; 23. a water pipe; 24. a concave groove.
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. 1-4, a device for preventing water leakage of a water pipe and automatically shutting off water comprises a water tank platform 1, a water leakage hole 2 is formed in the top of the water tank platform 1, the water leakage hole 2 is located under a water outlet of a water pipe 23, a rotating ring 3 is arranged inside the water tank platform 1, a convex body 4 is fixedly connected to the inner wall of the rotating ring 3, the height of the convex body 4 is larger than the distance between the inner wall of the rotating ring 3 and a compression block 10, a rotating vane 5 is fixedly installed on the outer wall of the rotating ring 3, the shape of the rotating vane 5 is concave, an air tank 6 is fixedly installed inside the rotating ring 3, an air bag groove 7 is fixedly connected to the outer wall of the air tank 6, a compression rod 8 is movably connected to the inside of the air bag groove 7, a compression air bag 9 is elastically connected between the compression rod 8 and the air tank 6, the compression block 10 is fixedly connected to the top end of the compression rod 8, an air pipe 11, a box body 13 is fixedly arranged on the right side of the inner rotating ring 3 of the water pool platform 1, a sliding groove 14 is fixedly connected between the upper air bag 12 and the lower air bag 12 on the inner wall of the box body 13, a sliding block 15 is slidably connected inside the sliding groove 14, a sliding rod 16 is slidably connected on the surface of the sliding block 15, the sliding rod 16 is connected with the sliding block 15 through a connecting rod, a pushing rod 17 is fixedly connected on the right side of the sliding block 15, a magnet 18 is fixedly connected on the right side of the pushing rod 17, a limit groove 19 is arranged on the right side of the inner part of the box body 13 close to the magnet 18, the top end of the limit groove 19 is arc-shaped, a round hole is arranged at the center of a metal plate 20 inside the limit groove 19, the diameter of the round hole is matched with that of a convex rod 22, a metal plate 20 is elastically connected inside the limit groove 19, a round ball 21 is movably, the right side of the convex rod 22 on the inner wall of the water pipe 23 is provided with a concave groove 24.
When water is forgotten to be shut, water continuously flows out of the water pipe 23, water in the water pipe 23 flows to the rotary blade 5 from the water leakage hole 2, the rotary blade 5 is concave, the water flows through the rotary ring 3 and is driven to rotate, the rotary ring 3 and the compression block 10 are mutually extruded through the convex body 4 on the inner wall, the compression block 10 pushes the compression rod 8 to extrude the compression air bag 9, gas is compressed into the air inlet box 6, the pressure in the air box 6 is continuously increased, the gas is led to the air bag 12 through the air pipe 11, the air bag 12 is continuously expanded and then extrudes the sliding rod 16 to move, the sliding rod 16 pushes the sliding block 15 through the connecting rod, the sliding block 15 pushes the magnet 18 to move rightwards through the pushing rod 17, the magnet 18 gradually approaches the limiting groove 19, when the distance is reached, the magnet 18 attracts the metal plate 20, the metal plate 20 moves leftwards, the round ball 21 relieves the constraint of the metal plate 20, the convex rod 22 moves into the concave groove 24 under the action of the spring to block the water pipe 23, and the water flow of the water pipe 23 stops flowing out, so that the effect of automatically closing the water is realized.
To sum up, this prevent device that water pipe leaked automatic water of closing, through swivel leaf 5 and 3 fixed connection of swivel ring, the shape of swivel leaf 5 is the spill, stay through long-pending when rivers, under the effect of gravity, swivel leaf 5 drives swivel ring 3 and rotates, the convex body 4 extrusion compression piece 10 of 3 inner walls of swivel ring, compression piece 10 promotes compression pole 8 compression gasbag 9, gas leads to gasbag 12, gasbag 12 extrusion slide bar 16 removes, trigger convex pole 22 at last and block up concave groove 24, block up water pipe 23, thereby reach and prevent because water pipe 23 goes wrong, the effect of automatic leaking.
This prevent device of automatic water shutoff of water pipe water leakage, pass through connecting rod interconnect through slide bar 16 and slider 15, magnet 18 passes through catch bar 17 and is connected with slider 15, when gasbag 12 constantly expands, begin to extrude slide bar 16 and move to the right side, slide bar 16 passes through connecting rod promotion slider 15, slider 15 passes through catch bar 17 and promotes magnet 18, magnet 18 attracts metal sheet 20, the constraint to convex pole 22 has been relieved to ball 21, convex pole 22 pops out and blocks up water pipe 23 with the cooperation of concave groove 24, thereby automatic water shutoff has been reached, prevent to forget water shutoff, the effect of water economy resource.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a prevent that water pipe from leaking device of automatic water shutoff, includes pond platform (1), its characterized in that: the water leakage hole (2) is formed in the top of the water pool platform (1), the rotating ring (3) is arranged inside the water pool platform (1), the convex body (4) is fixedly connected to the inner wall of the rotating ring (3), the rotating blade (5) is fixedly mounted on the outer wall of the rotating ring (3), the air tank (6) is fixedly mounted inside the rotating ring (3), the air bag groove (7) is fixedly connected to the outer wall of the air tank (6), the compression rod (8) is movably connected to the inside of the air bag groove (7), the compression air bag (9) is elastically connected between the compression rod (8) and the air tank (6), the compression block (10) is fixedly connected to the top end of the compression rod (8), the air pipe (11) is fixedly connected to the right side of the air tank (6), the air bags (12) are fixedly connected to the head end and the tail end of the air pipe (11), and the box body (13) is fixedly mounted on the right side of the inner rotating ring (3, a sliding groove (14) is fixedly connected between the upper air bag (12) and the lower air bag (12) on the inner wall of the box body (13), a sliding block (15) is connected in the sliding groove (14) in a sliding way, a sliding rod (16) is connected on the surface of the sliding block (15) in a sliding way, a push rod (17) is fixedly connected to the right side of the sliding block (15), a magnet (18) is fixedly connected to the right side of the push rod (17), a limiting groove (19) is arranged in the box body (13) close to the right side of the magnet (18), a metal plate (20) is elastically connected inside the limit groove (19), a round ball (21) is movably arranged on the right side of the metal plate (20), a convex rod (22) is movably connected between the inner round balls (21) of the limiting groove (19), the right side of box (13) is provided with water pipe (23), concave groove (24) have been seted up on the right side of inner wall convex rod (22) of water pipe (23).
2. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the water leakage hole (2) is positioned right below the water outlet of the water pipe (23).
3. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the height of the convex body (4) is larger than the distance between the inner wall of the rotating ring (3) and the compression block (10).
4. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the shape of the rotating blade (5) is concave.
5. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the male rod (22) mates with the female slot (24).
6. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the sliding rod (16) is connected with the sliding block (15) through a connecting rod.
7. The device for preventing water leakage of water pipe and automatically closing water according to claim 1, wherein: the top of the limiting groove (19) is arc-shaped, and a round hole is formed in the center of the metal plate (20) in the limiting groove (19) and the diameter of the round hole is matched with that of the convex rod (22).
CN202110118797.5A 2021-01-28 2021-01-28 Device for preventing water pipe from leaking water and automatically closing water Active CN112943998B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906983A (en) * 1974-06-05 1975-09-23 American Standard Inc Diverter valve
US4147298A (en) * 1976-08-02 1979-04-03 Louis J. Leemhuis Fluid flow controller
GB9106407D0 (en) * 1990-03-28 1991-05-15 Usui Kokusai Sangyo Kk Temperature sensitive fluid-type fan coupling device
JP2008224070A (en) * 2007-03-09 2008-09-25 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2009303351A (en) * 2008-06-11 2009-12-24 Toto Ltd Power generator for faucet
JP2012063258A (en) * 2010-09-16 2012-03-29 Maezawa Kyuso Industries Co Ltd Leakage detection method for water supply piping, and stop cock with leakage detection function
CN204099679U (en) * 2014-07-16 2015-01-14 李云生 Water valve self-closing device
US20160040664A1 (en) * 2013-10-25 2016-02-11 Xiamen Koge Micro Tech Co., Ltd. Valve clack and air pump having same
CN108916447A (en) * 2018-09-11 2018-11-30 徐阳 A kind of water system automatic water cut-off device
CN109854780A (en) * 2019-03-16 2019-06-07 刘旭 A kind of safety leakage proof type water valve for city water resource supply
CN110735469A (en) * 2019-09-25 2020-01-31 周新斌 universal telescopic self-generating cold and hot water tap
CN112013125A (en) * 2020-08-18 2020-12-01 沈青 Control device of water faucet for saving water resources
CN112064735A (en) * 2020-09-02 2020-12-11 德清县海杰包装有限公司 Hand washing sink capable of cleaning water stain on table top

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906983A (en) * 1974-06-05 1975-09-23 American Standard Inc Diverter valve
US4147298A (en) * 1976-08-02 1979-04-03 Louis J. Leemhuis Fluid flow controller
GB9106407D0 (en) * 1990-03-28 1991-05-15 Usui Kokusai Sangyo Kk Temperature sensitive fluid-type fan coupling device
JP2008224070A (en) * 2007-03-09 2008-09-25 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2009303351A (en) * 2008-06-11 2009-12-24 Toto Ltd Power generator for faucet
JP2012063258A (en) * 2010-09-16 2012-03-29 Maezawa Kyuso Industries Co Ltd Leakage detection method for water supply piping, and stop cock with leakage detection function
US20160040664A1 (en) * 2013-10-25 2016-02-11 Xiamen Koge Micro Tech Co., Ltd. Valve clack and air pump having same
CN204099679U (en) * 2014-07-16 2015-01-14 李云生 Water valve self-closing device
CN108916447A (en) * 2018-09-11 2018-11-30 徐阳 A kind of water system automatic water cut-off device
CN109854780A (en) * 2019-03-16 2019-06-07 刘旭 A kind of safety leakage proof type water valve for city water resource supply
CN110735469A (en) * 2019-09-25 2020-01-31 周新斌 universal telescopic self-generating cold and hot water tap
CN112013125A (en) * 2020-08-18 2020-12-01 沈青 Control device of water faucet for saving water resources
CN112064735A (en) * 2020-09-02 2020-12-11 德清县海杰包装有限公司 Hand washing sink capable of cleaning water stain on table top

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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Effective date of registration: 20230214

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