CN110805724A - Anti-reverse tap - Google Patents

Anti-reverse tap Download PDF

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Publication number
CN110805724A
CN110805724A CN201911201733.0A CN201911201733A CN110805724A CN 110805724 A CN110805724 A CN 110805724A CN 201911201733 A CN201911201733 A CN 201911201733A CN 110805724 A CN110805724 A CN 110805724A
Authority
CN
China
Prior art keywords
pipe
block
connecting rod
outlet pipe
main vertical
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.)
Granted
Application number
CN201911201733.0A
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Chinese (zh)
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CN110805724B (en
Inventor
徐正国
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.)
WENZHOU YILI SANITARY WARE Co.,Ltd.
Original Assignee
Taizhou Shangruite Import And Export 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 Taizhou Shangruite Import And Export Co Ltd filed Critical Taizhou Shangruite Import And Export Co Ltd
Priority to CN201911201733.0A priority Critical patent/CN110805724B/en
Publication of CN110805724A publication Critical patent/CN110805724A/en
Priority to PCT/CN2020/093064 priority patent/WO2021103464A1/en
Application granted granted Critical
Publication of CN110805724B publication Critical patent/CN110805724B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Domestic Plumbing Installations (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention discloses an anti-reverse faucet, which comprises a pipe body; the pipe body comprises a main vertical pipe which is vertically arranged; a horizontal pipe is formed at the right end of the upper part of the main vertical pipe; a water outlet pipe which inclines downwards from left to right is formed at the right end of the horizontal pipe; the upper end of the side wall of the horizontal pipe is provided with a vertically arranged air outlet pipe; the left end of the horizontal pipe is communicated with the main vertical pipe, the right end of the horizontal pipe is communicated with the water outlet pipe, and the upper end of the horizontal pipe is communicated with the air outlet pipe; the upper ends of the main vertical pipe and the air outlet pipe are sealed; the opening and closing block is arranged in the main vertical pipe in a vertically and elastically moving way; the lower end opening of the air outlet pipe is provided with a lower one-way valve; the right lower end of the side wall of the air outlet pipe is provided with an upper one-way valve; an air inlet and outlet block is vertically and elastically arranged in the air outlet pipe in a moving way; the opening and closing block and the air inlet and outlet block synchronously move up and down.

Description

Anti-reverse tap
Technical Field
The invention relates to the technical field of water faucets, in particular to an anti-reverse water faucet.
Background
With the continuous improvement of living standard, the demand of people for drinking water is also continuously improved. Household water purifiers are also commonly used small appliances. The purified water produced by the water purifier usually flows out through a section of water pipe and then flows out through a water faucet. The pipeline in the faucet in the market is communicated with the water purifier for a long time, and during the non-use period, the water pipe between the water purifier and the faucet and the space in the faucet are filled with water and are in contact with air. Thus, the bacteria are easily nourished, and the secondary pollution of the water source is caused. Thus, there is a need in the art for a faucet that is sealed from the outside during periods of non-use.
Disclosure of Invention
The invention aims to provide an anti-reverse faucet aiming at the technical problems that water remained in a faucet pipeline is easy to nourish bacteria and unsanitary to use.
The technical scheme for solving the technical problems is as follows: a kind of anti-inverse tap, including the tube; the pipe body comprises a main vertical pipe which is vertically arranged; a horizontal pipe is formed at the right end of the upper part of the main vertical pipe; a water outlet pipe which inclines downwards from left to right is formed at the right end of the horizontal pipe; the upper end of the side wall of the horizontal pipe is provided with a vertically arranged air outlet pipe; the left end of the horizontal pipe is communicated with the main vertical pipe, the right end of the horizontal pipe is communicated with the water outlet pipe, and the upper end of the horizontal pipe is communicated with the air outlet pipe; the upper ends of the main vertical pipe and the air outlet pipe are sealed; the opening and closing block is arranged in the main vertical pipe in a vertically and elastically moving way; the lower end opening of the air outlet pipe is provided with a lower one-way valve; the right lower end of the side wall of the air outlet pipe is provided with an upper one-way valve; an air inlet and outlet block is vertically and elastically arranged in the air outlet pipe in a moving way; when the air inlet and exhaust block is positioned at the lowest end, the air inlet and exhaust block is positioned at the upper side of the upper one-way valve; when the opening and closing block is positioned at the uppermost end, the horizontal pipe is communicated with the main vertical pipe; when the opening and closing block is positioned at the lowest end, the horizontal pipe is not communicated with the main vertical pipe; the opening and closing block and the air inlet and exhaust block synchronously move vertically.
Preferably, the upper end surface of the opening and closing block is formed with a left connecting rod, and the upper end surface of the air inlet and outlet block is formed with a right connecting rod; the upper end of the left connecting rod penetrates through the upper side wall of the main vertical pipe; the upper end of the right connecting rod penetrates through the upper side wall of the air outlet pipe; the upper end of the left connecting rod and the upper end of the right connecting rod are detachably connected with synchronous connecting blocks; the upper part of the left connecting rod is sleeved with a left tension spring; the upper end of the left tension spring is fixedly connected with the synchronous connecting block, and the lower end of the left tension spring is fixedly connected with the upper end face of the main vertical pipe; the upper part of the right connecting rod is sleeved with a right tension spring; the upper end of the right tension spring is fixedly connected with the synchronous connecting block, and the lower end of the right tension spring is fixedly connected with the upper end face of the air outlet pipe.
Preferably, the upper end of the left connecting rod and the upper end of the right connecting rod are respectively provided with an external thread; the synchronous connecting block vertically penetrates through the left connecting rod and the right connecting rod; the upper end surface of the synchronous connecting block is respectively pivoted with a left adjusting nut and a right adjusting nut; the left adjusting nut is screwed on the left connecting rod; the right adjusting nut is screwed on the right connecting rod.
Preferably, the lower end of the inner side wall of the air outlet pipe is provided with a plurality of limiting blocks; the limiting block is used for limiting the lower end position of the air inlet and exhaust block.
Preferably, the lower end of the opening/closing block is disposed obliquely upward from left to right.
As the optimization of the technical scheme, the water outlet end of the water outlet pipe is provided with the water outlet filter sleeve.
The invention has the beneficial effects that: simple structure, tap closes the back, makes main vertical intraductal remaining water isolated with the outside air, prevents that water from rotting.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention in normal operation;
fig. 2 is a structural diagram of a cross section of the initial state of the present invention.
In the figure, 10, a tube body; 11. a main vertical pipe; 12. a horizontal tube; 13. a water outlet pipe; 14. an air outlet pipe; 141. a limiting block; 142. a lower check valve; 143. an upper one-way valve; 15. a water outlet filter sleeve; 16. an opening and closing block; 161. a left connecting rod; 162. a left tension spring; 163. a left adjusting nut; 17. an air inlet and outlet block; 171. a right connecting rod; 172. a right tension spring; 173. a right adjusting nut; 18. and (5) synchronously connecting the blocks.
Detailed Description
As shown in fig. 1 and 2, the anti-reverse faucet comprises a pipe body 10; the pipe body 10 comprises a main vertical pipe 11 which is vertically arranged; a horizontal pipe 12 is formed at the right end of the upper part of the main vertical pipe 11; a water outlet pipe 13 which inclines downwards from left to right is formed at the right end of the horizontal pipe 12; an air outlet pipe 14 which is vertically arranged is formed at the upper end of the side wall of the horizontal pipe 12; the left end of the horizontal pipe 12 is communicated with the main vertical pipe 11, the right end is communicated with the water outlet pipe 13, and the upper end is communicated with the air outlet pipe 17; the upper ends of the main vertical pipe 11 and the air outlet pipe 14 are closed; an opening and closing block 16 is arranged in the main vertical pipe 11 in a vertically and elastically movable manner; the lower end opening of the outlet pipe 14 is provided with a lower check valve 142; the right lower end of the side wall of the air outlet pipe 14 is provided with an upper one-way valve 143; an air inlet and outlet block 17 is vertically and elastically arranged in the air outlet pipe 14; when the air inlet and outlet block 17 is positioned at the lowest end, the air inlet and outlet block 17 is positioned at the upper side of the upper one-way valve 143; when the opening and closing block 16 is at the uppermost end, the horizontal pipe 12 communicates with the main vertical pipe 11; when the opening and closing block 16 is positioned at the lowest end, the horizontal pipe 12 is not communicated with the main vertical pipe 11; the opening and closing block 16 and the air intake and exhaust block 17 move vertically in synchronization.
As shown in fig. 1 and 2, a left connecting rod 161 is formed on the upper end surface of the opening and closing block 16, and a right connecting rod 171 is formed on the upper end surface of the air intake and exhaust block 17; the upper end of the left connecting rod 161 passes through the upper side wall of the main vertical pipe 11; the upper end of the right connecting rod 171 passes through the upper side wall of the outlet duct 14; the upper end of the left connecting rod 161 and the upper end of the right connecting rod 171 are detachably connected with a synchronous connecting block 18; the upper part of the left connecting rod 161 is sleeved with a left tension spring 162; the upper end of the left tension spring 162 is fixedly connected with the synchronous connecting block 18, and the lower end is fixedly connected with the upper end face of the main vertical pipe 11; the upper part of the right connecting rod 171 is sleeved with a right tension spring 172; the upper end of the right tension spring 172 is fixedly connected with the synchronous connecting block 18, and the lower end is fixedly connected with the upper end face of the air outlet pipe 14.
As shown in fig. 1 and 2, the upper end of the left connecting rod 161 and the upper end of the right connecting rod 171 are respectively formed with external threads; the synchronizing connecting block 18 vertically passes through the left connecting rod 161 and the right connecting rod 171; the upper end surface of the synchronous connecting block 18 is respectively pivoted with a left adjusting nut 163 and a right adjusting nut 173; the left adjusting nut 163 is screwed on the left connecting rod 161; the right adjusting nut 173 is screwed to the right connecting rod 171.
As shown in fig. 1 and 2, a plurality of limiting blocks 141 are formed at the lower end of the inner side wall of the air outlet pipe 14; the stopper 141 is used to restrict the lower end position of the intake and exhaust block 17.
As shown in fig. 1 and 2, the lower end of the opening/closing block 16 is disposed obliquely upward from left to right.
As shown in fig. 1 and 2, the water outlet end of the water outlet pipe 13 is provided with a water outlet filter sleeve 15.
The working principle of the anti-reverse faucet;
in an initial state, as shown in fig. 2, the opening and closing block 16 and the air inlet and exhaust block 17 are positioned at the lowest end, the opening and closing block 16 closes the connecting part of the main vertical pipe 11 and the horizontal pipe 12, and water remained in the main vertical pipe 11 is isolated from external connection and is not easy to breed bacteria;
when the faucet switch is opened, the main vertical pipe 11 is filled with water, the opening and closing block 16 is pushed open, the water is sprayed out through the horizontal pipe 12 and the water outlet pipe 13, meanwhile, the air inlet and outlet block 17 moves upwards synchronously, air is supplied from the upper one-way valve 143 in the rising process of the air inlet and outlet block 17, when the faucet switch is closed, the main vertical pipe 11 stops filling the water, the opening and closing block 16 seals the connecting part of the main vertical pipe 11 and the horizontal pipe 12 under the action of the tension spring, meanwhile, the air inlet and outlet block 17 descends to enable air flow in the air outlet pipe 14 to be discharged from the lower one-way valve 142, the air flow enables the residual water in the horizontal pipe 12 and the water outlet pipe 13 to be discharged as much as possible, no residual water exists in the horizontal pipe 12 and the water outlet pipe 13, and the water in the main vertical pipe 11 is isolated.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.

Claims (6)

1. The utility model provides a tap of preventing contrary which characterized in that: comprises a tube body (10); the pipe body (10) comprises a main vertical pipe (11) which is vertically arranged; a horizontal pipe (12) is formed at the right end of the upper part of the main vertical pipe (11); a water outlet pipe (13) which inclines downwards from left to right is formed at the right end of the horizontal pipe (12); an air outlet pipe (14) which is vertically arranged is formed at the upper end of the side wall of the horizontal pipe (12); the left end of the horizontal pipe (12) is communicated with the main vertical pipe (11), the right end is communicated with the water outlet pipe (13), and the upper end is communicated with the air outlet pipe (17); the upper ends of the main vertical pipe (11) and the air outlet pipe (14) are arranged in a closed way; an opening and closing block (16) is arranged in the main vertical pipe (11) in a vertically and elastically moving way; a lower one-way valve (142) is arranged at the lower end opening of the air outlet pipe (14); the right lower end of the side wall of the air outlet pipe (14) is provided with an upper one-way valve (143); an air inlet and exhaust block (17) is vertically and elastically arranged in the air outlet pipe (14); when the air inlet and outlet block (17) is positioned at the lowest end, the air inlet and outlet block (17) is positioned at the upper side of the upper one-way valve (143); when the opening and closing block (16) is positioned at the uppermost end, the horizontal pipe (12) is communicated with the main vertical pipe (11); when the opening and closing block (16) is positioned at the lowest end, the horizontal pipe (12) is not communicated with the main vertical pipe (11); the opening and closing block (16) and the air inlet and outlet block (17) synchronously move vertically.
2. The anti-reverse faucet of claim 1, wherein: a left connecting rod (161) is formed on the upper end surface of the opening and closing block (16), and a right connecting rod (171) is formed on the upper end surface of the air inlet and outlet block (17); the upper end of the left connecting rod (161) penetrates through the upper side wall of the main vertical pipe (11); the upper end of the right connecting rod (171) passes through the upper side wall of the air outlet pipe (14); the upper ends of the left connecting rod (161) and the right connecting rod (171) are detachably connected with a synchronous connecting block (18); the upper part of the left connecting rod (161) is sleeved with a left tension spring (162); the upper end of the left tension spring (162) is fixedly connected with the synchronous connecting block (18), and the lower end of the left tension spring is fixedly connected with the upper end face of the main vertical pipe (11); the upper part of the right connecting rod (171) is sleeved with a right tension spring (172); the upper end of the right tension spring (172) is fixedly connected with the synchronous connecting block (18), and the lower end is fixedly connected with the upper end surface of the air outlet pipe (14).
3. The anti-reverse faucet of claim 2, wherein: the upper end of the left connecting rod (161) and the upper end of the right connecting rod (171) are respectively provided with an external thread; the synchronous connecting block (18) vertically penetrates through the left connecting rod (161) and the right connecting rod (171); the upper end surface of the synchronous connecting block (18) is respectively pivoted with a left adjusting nut (163) and a right adjusting nut (173); the left adjusting nut (163) is screwed on the left connecting rod (161); the right adjusting nut (173) is screwed on the right connecting rod (171).
4. The anti-reverse faucet of claim 1, wherein: a plurality of limiting blocks (141) are formed at the lower end of the inner side wall of the air outlet pipe (14); the limiting block (141) is used for limiting the lower end position of the air inlet and outlet block (17).
5. The anti-reverse faucet of claim 1, wherein: the lower end of the opening and closing block (16) is arranged obliquely upwards from left to right.
6. The anti-reverse faucet of claim 1, wherein: the water outlet end of the water outlet pipe (13) is provided with a water outlet filter sleeve (15).
CN201911201733.0A 2019-11-29 2019-11-29 Anti-reverse tap Active CN110805724B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201911201733.0A CN110805724B (en) 2019-11-29 2019-11-29 Anti-reverse tap
PCT/CN2020/093064 WO2021103464A1 (en) 2019-11-29 2020-05-29 Anti-backflow faucet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911201733.0A CN110805724B (en) 2019-11-29 2019-11-29 Anti-reverse tap

Publications (2)

Publication Number Publication Date
CN110805724A true CN110805724A (en) 2020-02-18
CN110805724B CN110805724B (en) 2021-06-01

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Application Number Title Priority Date Filing Date
CN201911201733.0A Active CN110805724B (en) 2019-11-29 2019-11-29 Anti-reverse tap

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CN (1) CN110805724B (en)
WO (1) WO2021103464A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021103464A1 (en) * 2019-11-29 2021-06-03 台州尚瑞特进出口有限公司 Anti-backflow faucet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131387A (en) * 1987-11-16 1989-05-24 Toto Ltd Faucet
RO102472B1 (en) * 1988-09-21 1993-02-25 Gauging valve with automatic cutting-off
CN2289097Y (en) * 1996-11-13 1998-08-26 郑素芬 Antifreezing tap
JP2001012624A (en) * 1999-06-30 2001-01-16 Koyo Sangyo Kk Gas appliance with drain hole
JP2001280529A (en) * 2000-03-31 2001-10-10 Chuo Motor Wheel Co Ltd Valve device having residual pressure release function
CN105299264A (en) * 2015-12-11 2016-02-03 佛山市恒洁卫浴有限公司 Rust-proof faucet
CN209444828U (en) * 2018-12-06 2019-09-27 上海融澈水性材料有限公司 A kind of discharging valve of reaction kettle and reaction kettle

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Publication number Priority date Publication date Assignee Title
CN1072482A (en) * 1992-10-07 1993-05-26 王毅 Multifunctional automatic water-saving sanitary system valve
CN101694310A (en) * 2009-10-20 2010-04-14 向生田 Water pressure emptier of solar water heater
CN201787083U (en) * 2009-11-09 2011-04-06 浙江华龙阀门有限公司 Exhaust water nozzle
CN102588645B (en) * 2011-12-02 2014-04-16 本科电器有限公司 Ozone disinfection water tap
DE102012215548A1 (en) * 2012-09-03 2014-03-06 Schaeffler Technologies AG & Co. KG Adjusting device for bypass valve of exhaust gas turbocharger of internal combustion engine of vehicle, has adjusting unit provided with electroactive polymer actuator and connected with bypass valve through mechanical coupling element
IT201800000970A1 (en) * 2018-01-15 2019-07-15 Sabaf Spa Tap for burners
CN110805724B (en) * 2019-11-29 2021-06-01 温州市意利洁具有限公司 Anti-reverse tap

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131387A (en) * 1987-11-16 1989-05-24 Toto Ltd Faucet
RO102472B1 (en) * 1988-09-21 1993-02-25 Gauging valve with automatic cutting-off
CN2289097Y (en) * 1996-11-13 1998-08-26 郑素芬 Antifreezing tap
JP2001012624A (en) * 1999-06-30 2001-01-16 Koyo Sangyo Kk Gas appliance with drain hole
JP2001280529A (en) * 2000-03-31 2001-10-10 Chuo Motor Wheel Co Ltd Valve device having residual pressure release function
CN105299264A (en) * 2015-12-11 2016-02-03 佛山市恒洁卫浴有限公司 Rust-proof faucet
CN209444828U (en) * 2018-12-06 2019-09-27 上海融澈水性材料有限公司 A kind of discharging valve of reaction kettle and reaction kettle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021103464A1 (en) * 2019-11-29 2021-06-03 台州尚瑞特进出口有限公司 Anti-backflow faucet

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Publication number Publication date
CN110805724B (en) 2021-06-01
WO2021103464A1 (en) 2021-06-03

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Address after: No.619 Haigong Avenue, Haicheng water heating base, Wenzhou, Zhejiang 325000

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