CN111779864B - Water leakage protection valve - Google Patents
Water leakage protection valve Download PDFInfo
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- CN111779864B CN111779864B CN202010694841.2A CN202010694841A CN111779864B CN 111779864 B CN111779864 B CN 111779864B CN 202010694841 A CN202010694841 A CN 202010694841A CN 111779864 B CN111779864 B CN 111779864B
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- hole
- moisture absorption
- water
- valve
- paper sheet
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- 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
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a water leakage protection valve. The water leakage protection valve comprises a valve body and a valve cover connected with the left end of the valve body; the valve body is provided with a water inlet, a water return port and a connecting channel communicated with the water inlet and the water return port; the connecting channel extends leftwards to form an opening and closing channel, a sealing rod is arranged in the opening and closing channel, a sealing head capable of sealing the connecting channel is arranged at the head of the sealing rod, and the valve cover further comprises a moisture absorption paper sheet assembly, wherein a gap cavity is formed between the outer diameter of the moisture absorption paper sheet assembly and the valve cover. The invention adopts the moisture absorption paper sheet, which can be used repeatedly; and structurally for the better drying of moisture absorption paper piece is contract and is provided the support, this product is suitable for a great deal of occasion, and the structure is succinct, and the practicality is high, and is effectual, has market competition.
Description
Technical Field
The invention relates to a water leakage protection valve.
Background
Water leakage of building house-entry pipeline systems such as a tap water pipeline, a water medium heating pipeline, a solar hot water pipeline and the like is avoided, and the condition is not controlled, so that floor furniture on a site is submerged, walls are soaked and rotten and the like are lost. If floor heating users contacted by the inventor, water overflows from the gold mountains in the home when the leakage occurs at the joint of the boiler or the water collecting and distributing device; or the tap water is forgotten to be closed, the tap water is in a Wangyuan area after the tap water returns home, the leakage often causes great economic loss to users, and the maintenance process is troublesome at the later stage.
At present, the water leakage protection device is gradually paid attention to by people, and products with various structures mainly comprise a mechanical type and an electronic type on the market. The electronic type is composed of an electromagnetic valve, an inductor and the like, for example, a household water leakage protection device with the publication number of CN205877341U, and the working mode is that the electromagnetic valve is controlled to be closed by a controller after the inductor meets water. The electronic type needs to keep the power-on state, the structure is complex, the fault is easy to occur, and the cost is high. Mechanical, such as the "water leakage protection valve" shown in publication No. CN203880172U, triggers a mechanical structure through a water-soluble dielectric layer to block the water flow path. The publication No. CN203115213U entitled "Water leakage protection device" is also a structure for mechanically blocking a water flow path by expanding a hygroscopic foam material.
The mechanical water leakage protection device has the advantages of no need of an external power supply, flexible product placement position, high execution reliability and low cost. However, the dielectric layer needs to be replaced after the product is used in case of a certain condition, and the product cannot be used continuously by a person who does not use the product. Water leaks are an incidental event that may be encountered for 3, 5 or more years, and may also be encountered frequently. The worn part is troublesome to replace, or the original worn part fails all the year round, or the worn part cannot be found and replaced. If the water leakage protection device is integrally replaced after failure, the connecting pipeline is not easy to disassemble or the matching difference exists.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a novel mechanical water leakage protection valve, which adopts a non-disposable structure of a moisture absorption paper sheet, can absorb water to expand and retract, automatically recover after being operated in water, can be repeatedly used, and solves the problems in the prior art; the whole pen type structure is adopted, the placement is more flexible, and the pen type structure is suitable for various occasions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water leakage protection valve comprises a valve body and a valve cover connected with the left end of the valve body; the right end of the valve body is provided with a water inlet and a water return port, and a connecting channel is communicated between the water inlet and the water return port; the valve body is provided with a connecting channel, a sliding sealing rod is arranged in the connecting channel, a sealing head capable of sealing the connecting channel is arranged at the head of the sealing rod, and a return spring is arranged between the sealing rod and the inside of the valve body; the middle of the moisture absorption paper sheet component is provided with a through hole; the left end and the right end of the moisture absorption paper sheet component respectively abut against the left bottom of the valve cover and the left end face of the sealing rod; the outer diameter of the moisture absorption paper sheet component and the valve cover form a gap cavity, and the moisture absorption paper sheet component consists of annular moisture absorption paper sheets.
The technical scheme of the invention can also comprise:
the absorbent paper sheet assembly further comprises breathable pads, which are alternately combined with the absorbent paper sheets.
And a breathable wrapping film is arranged outside the moisture absorption paper sheet component.
The valve cover and/or the valve body are/is provided with vent holes.
The valve cover is internally provided with a central shaft column which passes through a through hole of the moisture absorption paper sheet component; and the central shaft column is fixed in the central hole of the sealing rod in a sliding way.
The middle of the central shaft column is of a central shaft column through hole structure, the central shaft column through hole is directly communicated with the outside, and a through hole is arranged on the central shaft column through hole; the through hole is communicated with the through hole.
The tail part of the valve cover is provided with a valve cover hole communicated with the through hole of the wet paper sheet assembly.
The valve cover hole is communicated with the through hole and the central hole of the sealing rod; the sealing rod is also provided with a sealing rod hole communicated with the central hole; the sealing rod hole is communicated with the outside through a vent hole.
The water inlet and the water return port face to the same direction on the valve body.
The water leakage protection valve provided by the invention adopts a structure different from that of the prior art, and adopts the moisture absorption paper which absorbs water to expand and is dried to retract, so that no consumption part can be used repeatedly; and structurally provides support for better dry recovery of the absorbent paper sheet. In addition, the water leakage protection valve adopts a pen type structure, is more flexible to place, is suitable for a plurality of occasions, and has the advantages of simple structure, high practicability, good effect and market competitiveness.
Drawings
FIG. 1 is a schematic perspective view of a water leakage protection valve according to the present invention;
FIG. 2 is a schematic cross-sectional view of an open state of the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a closed state according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional perspective view of a two-absorbent paper sheet assembly according to an embodiment of the present invention;
FIG. 5 is a schematic partial cross-sectional view of a third embodiment of the present invention;
fig. 6 is a schematic partial cross-sectional view of an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following embodiments.
As shown in fig. 1, fig. 2 and fig. 3, in a first preferred embodiment, a water leakage protection valve comprises a valve body 1, a valve cover 2 connected with the left end of the valve body 1; the right end of the valve body 1 is provided with a water inlet 10 and a water return port 11, and the water inlet 10 is communicated with the water return port 11 through a connecting channel 13; the connecting channel 13 extends leftwards to form an opening and closing channel 14, a slidable sealing rod 4 is arranged in the opening and closing channel 14, the head of the sealing rod 4 is provided with a sealing head 42 capable of sealing the connecting channel 13, and a return spring 5 is also arranged between the sealing rod 4 and the inside of the valve body 1; the paper towel dryer also comprises a moisture absorption paper towel component 3, wherein a through hole 31 is formed in the middle of the moisture absorption paper towel component 3; the left end and the right end of the moisture absorption paper sheet component 3 respectively abut against the left bottom 21 of the valve cover 2 and the left end face 40 of the sealing rod 4; a gap cavity 29 is formed between the outer diameter of the moisture absorption paper sheet component 3 and the valve cover 2, and the moisture absorption paper sheet component 3 is composed of annular moisture absorption paper sheets 30.
The mechanical water leakage protector in the prior art realizes actions through reaction of loss components such as a water-soluble dielectric layer or a moisture-absorbing foaming material and the like with water, but the mechanical water leakage protector is disposable, cannot restore the original state due to the dissolution of the dielectric layer or the moisture-absorbing foaming material and cannot be reused due to no structure supporting automatic resetting. The water leakage protector is used as a connecting part of a pipeline, the disassembly and the assembly are troublesome, water leakage is an accidental event and is an emergency, and after the water leakage protector is found, a loss part needs to be matched with the whole body or the whole body needs to be connected and matched with the original pipeline; in addition, the purchased products are not necessarily replaced in time, which causes further loss.
The invention can realize the automatic reset of the mechanical water leakage protection valve, and the mechanical water leakage protection valve can touch the moisture absorption paper sheet accidentally. The moisture absorption paper sheet 30 is used in an exhaust valve in "an automatic exhaust valve" of the prior art, publication No. CN 201836397U, and fills the upper part of the cap body of the exhaust valve. When the exhaust valve works normally, the exhaust valve exhausts air through gaps between the moisture absorption paper sheets and the transverse exhaust channel; the moisture absorption paper sheet swells when meeting water, the exhaust channel is blocked, and the moisture absorption paper sheet recovers to exhaust after dehydration and drying. Publication No. CN201844076U also discloses similar absorbent paper sheets, also used in the field of air release valves. The prior art moisture absorption paper sheet can expand by about 50 percent of the thickness after absorbing water, has better quality and can reach more than 90 percent, and the original thickness can be basically recovered after losing water.
The water leakage protector in the prior art is mostly used in the occasions of water purifiers. This structure wholly adopts pen type shape, and the structure is small and exquisite, is applicable to multiple occasion and places, if warm up to divide below the water collector, the water storage tank edge, in the water gauge box or kitchen bathroom ground first-class to and constrictive installation space, same direction is gone to on valve body 1 to water inlet 10 and return water mouth 11, makes things convenient for the installation of pipeline, as shown in the attached drawing. The water inlet 10 and the water return 11 can be coaxial or arranged on two sides of the valve body 1, as long as the sealing head 42 can cut off the connecting channel 13, and similar structures such as a stop valve opening and closing sealing structure.
The valve body 1 and the valve cover 2 are connected by screw threads in the attached drawings, and can also adopt connecting structures such as buckles, rivets and the like, and water leakage can enter from the connecting parts until the moisture absorption paper sheets 30 are wetted and expanded.
The valve cover 2 and/or the valve body 1 are/is provided with a vent hole 9. The vent hole 9 is used not only for ventilation but also for water entering the valve cover 2 after water leakage. In the embodiment, the vent holes 9 are formed in one circle of the valve cover 2, the vent holes 9 can be arranged at different angles to correspond to different installation angles of the water leakage protection valve, water at the bottom can enter the valve cover 2, and water drops on the bottom can also enter the valve cover 2. Compared with the water leakage, the water leakage enters from the joint of the valve body 1 and the valve cover 2, and enters from the vent hole 9 more quickly and directly.
After the water leakage enters the valve cover 2, the moisture absorption paper sheet component 3 absorbs water and expands to push the sealing rod 4 to slide rightwards, until the sealing head 42 at the head of the sealing rod 4 is sealed with the connecting channel 13, and the water inflow is cut off, as shown in figure 3.
Before the absorbent paper sheet 30 meets water, the normal thickness is between 0.8 mm and 2 mm, and after swelling when meeting water, the thickness can be increased by about 50%, even more. The absorbent paper sheet assembly 3 is generally composed of more than 20 independent absorbent paper sheets 30, and how to fix and keep the expansion direction of the absorbent paper sheets 30 consistent is also the solution to be solved by the present invention. In a preferred embodiment, the absorbent web assembly 3 is comprised entirely of annular absorbent webs 30. The inventor arranges a central shaft column 22 in the valve cover 2, and the central shaft column 22 passes through a through hole 31 of the moisture absorption paper sheet component 3; and the central shaft post 22 is slidably secured within the central bore 41 of the seal rod 4. The structure can effectively solve the problem of fixing the moisture absorption paper sheet 30 and is convenient for production and assembly; meanwhile, the central shaft column 22 is matched with the central hole 41, so that the deflection of the expansion force output force of the moisture absorption paper sheet 30 can be prevented.
In addition to solving the problem of uniform output force directionality when the moisture-absorbing paper sheet assembly 3 expands with water, the present configuration also solves the problem of how the moisture-absorbing paper sheet assembly 3 can be dried and recovered in the valve cover 2. The inventors have added a number of features to the structure from a number of perspectives.
Firstly, the outer diameter of the moisture absorption paper component 3 and the valve cover 2 have a clearance cavity 29, so that the outer diameter of the moisture absorption paper 30 has an empty space to contact air, and surface moisture is emitted along with the air flow. The gap chamber 29 is in contact with the outside of the valve body via the vent 9. The arrangement of the gap cavity 29 is different from the prior art vent valve absorbent paper sheet portion.
Secondly, the center of the moisture absorption paper sheet component 3 is provided with a through hole 31, and the moisture absorption paper sheet component is fixedly matched with the center shaft column 22. The existence of the through hole 31 structure can greatly reduce the width of the moisture absorption paper sheet 30, for example, a circular paper sheet is wetted, the center is the slowest dry, and the circular moisture absorption paper sheet 30 can accelerate the drying process of the moisture absorption paper sheet 30 by removing the center part; and the central shaft column 22 can transfer external heat to the inner hole part of the moisture absorption paper sheet 30 to accelerate drying. The drying process is performed simultaneously on the outer diameter of the absorbent paper sheet assembly 3 and the through-holes 31. This is why the absorbent paper sheet 30 is not circular but circular.
Third, the absorbent web assembly 3 is made up of a plurality of annular absorbent web segments 30, rather than an integral structure, and the presence of gaps between the absorbent web segments 30 also accelerates the drying process.
Under normal and normal temperature conditions, the recovery process of the moisture-absorbing sheet assembly 3 after absorbing water takes one or two hours. The clearance cavity 29, the central shaft column 22 and the valve cover 2 are made of metal materials such as brass and the like, and the water leakage protection valve can recover the water passing state within a few minutes by blowing hot air with a blower.
Referring to fig. 4, in the same overall structure as in the first preferred embodiment, the absorbent paper sheet assembly 3 further comprises air-permeable spacers 32, and the air-permeable spacers 32 are alternately combined with the absorbent paper sheets 30.
In order to realize that the sealing head 42 of the sealing rod 4 is sealed and connected with the channel 13, the propelling stroke of the sealing rod 4 is longer, which is more than 10 mm in the embodiment, but the moisture absorption paper sheet of the air exhaust valve in the prior art only has a space of a few threads, so that air can be ventilated, and the two air exhaust valves have different orders of magnitude. Therefore, how to quickly dry and recover the absorbent paper sheets 30 of up to 20 sheets or more is a problem to be solved, and the gaps between the absorbent paper sheets 30 are smaller and the water vapor is emitted more slowly by the return spring 5. To increase the drying process at the interface between the absorbent paper sheets 30, a breathable spacer sheet 32 is added in this embodiment. The air-permeable gasket 32 may be a plastic gasket or a metal gasket, or a bubbled stone, a plastic gasket with a mesh or a metal gasket.
As shown in FIG. 4, the alternating combination of two absorbent paper sheets 30 and one air permeable pad 32; alternatively, the absorbent paper sheets 30 and the breathable pads 32 are alternately formed; or three absorbent paper sheets 30, one breathable pad 32, etc. The addition of the breathable spacers 32 between the absorbent paper sheets 30 increases breathability between the absorbent paper sheets 30 and accelerates retraction after water leakage ceases.
In the third preferred embodiment, as shown in fig. 5, the whole structure is similar to that of the first preferred embodiment. A water leakage protection valve comprises a valve body 1 and a valve cover 2 connected with the left end of the valve body 1; the right end of the valve body 1 is provided with a water inlet 10 and a water return port 11, and the water inlet 10 is communicated with the water return port 11 through a connecting channel 13; the connecting channel 13 extends leftwards to form an opening and closing channel 14, a slidable sealing rod 4 is arranged in the opening and closing channel 14, the head of the sealing rod 4 is provided with a sealing head 42 capable of sealing the connecting channel 13, and a return spring 5 is also arranged between the sealing rod 4 and the inside of the valve body 1; the paper towel dryer also comprises a moisture absorption paper towel component 3, wherein a through hole 31 is formed in the middle of the moisture absorption paper towel component 3; the left end and the right end of the moisture absorption paper sheet component 3 respectively abut against the left bottom 21 of the valve cover 2 and the left end face 40 of the sealing rod 4; a gap cavity 29 is formed between the outer diameter of the moisture absorption paper sheet component 3 and the valve cover 2, and the moisture absorption paper sheet component 3 is composed of annular moisture absorption paper sheets 30.
The valve cover 2 is internally provided with a central shaft column 22, and the central shaft column 22 passes through a through hole 31 of the moisture absorption paper sheet component 3; and the central shaft post 22 is slidably secured within the central bore 41 of the seal rod 4. The middle of the central shaft column 22 is provided with a central shaft column through hole 24 structure, the central shaft column through hole 24 is directly communicated with the outside, and the central shaft column through hole 24 is provided with a through hole 25; the through hole 25 communicates with the through hole 31.
The through holes 25 are distributed in the central shaft column through hole 24, so that the through holes 31 are more communicated with the central shaft column through hole 24, the through holes 31 of the moisture-absorbing paper sheet assembly 3 are also communicated with the outside, and the water vapor emission around the through holes 31 is promoted.
The above structure has the advantage of changing the path of the water vapor around the through hole 31, and the first preferred embodiment
The water vapor around the through hole 31 firstly passes through the gap between the moisture absorption paper sheets 30, then is transmitted to the outer diameter of the moisture absorption paper sheets 30, and then is emitted to the outside through the gap cavity 29 and the vent hole 9; in the scheme, water vapor around the through hole 31 directly contacts with the outside through the through hole 25 and the central shaft through hole 24, and is directly and quickly diffused. The moisture on the outer diameter of the absorbent paper sheet 30 and the periphery of the through hole 31 is simultaneously diffused, and the whole retraction process of the absorbent paper sheet assembly 3 is accelerated.
In the fourth preferred embodiment, as shown in fig. 6, the whole structure is similar to that of the first preferred embodiment. A water leakage protection valve comprises a valve body 1 and a valve cover 2 connected with the left end of the valve body 1; the right end of the valve body 1 is provided with a water inlet 10 and a water return port 11, and the water inlet 10 is communicated with the water return port 11 through a connecting channel 13; the connecting channel 13 extends leftwards to form an opening and closing channel 14, a slidable sealing rod 4 is arranged in the opening and closing channel 14, the head of the sealing rod 4 is provided with a sealing head 42 capable of sealing the connecting channel 13, and a return spring 5 is also arranged between the sealing rod 4 and the inside of the valve body 1; the paper towel dryer also comprises a moisture absorption paper towel component 3, wherein a through hole 31 is formed in the middle of the moisture absorption paper towel component 3; the left end and the right end of the moisture absorption paper sheet component 3 respectively abut against the left bottom 21 of the valve cover 2 and the left end face 40 of the sealing rod 4; a gap cavity 29 is formed between the outer diameter of the moisture absorption paper sheet component 3 and the valve cover 2, and the moisture absorption paper sheet component 3 is composed of annular moisture absorption paper sheets 30.
In this embodiment the absorbent web assembly 3 is externally provided with an air permeable wrapping film 33. The breathable wrapper 33 can secure the absorbent sheet 30, or the combination of the absorbent sheet 30 and breathable pad 32, within the absorbent sheet assembly 3. The construction of the breathable wrapping film 33 may also be used in other preferred embodiments.
The end of the valve cover 2 of this embodiment is provided with a cover hole 26 communicating with the through hole 31 of the wet paper sheet assembly 3. The valve cover hole 26 communicates with the through hole 31, and the center hole 41 of the seal rod 4; the sealing rod 4 is also provided with a sealing rod hole 44 communicated with the central hole 41; the sealing rod hole 44 communicates with the outside through the vent hole 9. This structure changes the main channel for the moisture to be emitted from the wet paper web assembly 3, and primarily emits the moisture through the valve cover hole 26 communicating with the outside.
The vent hole 9 is positioned on the valve body 1. The vent hole 9, the sealing rod hole 44, the central hole 41, the through hole 31 and the valve cover hole 26 form a circulating air channel with two ends contacting the outside, the dispersion of water vapor on the wet paper sheet assembly 3 is accelerated, and the gap cavity 29 is added, so that the water supply of the pipeline can be quickly recovered under the water leakage stop state.
The water leakage protection valve provided by the invention adopts a structure different from that of the prior art, and adopts the moisture absorption paper sheet, so that the water leakage protection valve can be repeatedly used; and structurally provides support for better dry recovery of the absorbent paper sheet. In addition, the water leakage protection valve is of a pen type structure, is more flexible to place, is suitable for a plurality of occasions, and is simple in structure, high in practicability, good in effect and capable of having market competitiveness.
Claims (6)
1. A water leakage protection valve comprises a valve body (1) and a valve cover (2) connected with the left end of the valve body (1); the right end of the valve body (1) is provided with a water inlet (10) and a water return port (11), and the water inlet (10) is communicated with the water return port (11) through a connecting channel (13); the connecting channel (13) extends leftwards to form an opening and closing channel (14), a slidable sealing rod (4) is arranged in the opening and closing channel (14), a sealing head (42) capable of sealing the connecting channel (13) is arranged at the head of the sealing rod (4), and a return spring (5) is arranged between the sealing rod (4) and the inside of the valve body (1); the method is characterized in that: the paper towel is characterized by also comprising a moisture absorption paper towel component (3), wherein a through hole (31) is formed in the middle of the moisture absorption paper towel component (3); the left end and the right end of the moisture absorption paper sheet component (3) respectively abut against the left bottom (21) of the valve cover (2) and the left end face (40) of the sealing rod (4); a gap cavity (29) is formed between the outer diameter of the moisture absorption paper sheet assembly (3) and the valve cover (2), and the moisture absorption paper sheet assembly (3) consists of annular moisture absorption paper sheets (30); the absorbent paper sheet assembly (3) also comprises air-permeable pads (32), and the air-permeable pads (32) and the absorbent paper sheets (30) are alternately combined; the valve cover (2) and/or the valve body (1) are/is provided with a vent hole (9), and the tail part of the valve cover (2) is provided with a valve cover hole (26) communicated with the through hole (31) of the moisture absorption paper sheet component (3).
2. The water leakage protection valve of claim 1, wherein: and a breathable wrapping film (33) is arranged outside the moisture absorption paper sheet component (3).
3. A water leakage protection valve according to claim 1 or 2, wherein: a central shaft column (22) is arranged in the valve cover (2), and the central shaft column (22) penetrates through a through hole (31) of the moisture absorption paper sheet assembly (3); and the central shaft column (22) is slidably fixed in the central hole (41) of the sealing rod (4).
4. A water leak protection valve according to claim 3, wherein: the middle of the central shaft column (22) is of a central shaft column through hole (24) structure, the central shaft column through hole (24) is directly communicated with the outside, and a through hole (25) is arranged on the central shaft column through hole (24); the through hole (25) is communicated with the through hole (31).
5. A water leak protection valve according to claim 3, wherein: the valve cover hole (26) is communicated with the through hole (31) and a central hole (41) of the sealing rod (4); the sealing rod (4) is also provided with a sealing rod hole (44) communicated with the central hole (41); the sealing rod hole (44) is communicated with the outside through the vent hole (9).
6. The water leakage protection valve of claim 1, wherein: the water inlet (10) and the water return port (11) face to the same direction on the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010694841.2A CN111779864B (en) | 2020-07-18 | 2020-07-18 | Water leakage protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010694841.2A CN111779864B (en) | 2020-07-18 | 2020-07-18 | Water leakage protection valve |
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| Publication Number | Publication Date |
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| CN111779864A CN111779864A (en) | 2020-10-16 |
| CN111779864B true CN111779864B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010694841.2A Active CN111779864B (en) | 2020-07-18 | 2020-07-18 | Water leakage protection valve |
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| CN (1) | CN111779864B (en) |
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| EP1998071A2 (en) * | 2007-06-01 | 2008-12-03 | ZF Friedrichshafen AG | Damping valve for a vibration damper |
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| CN110002660A (en) * | 2019-04-23 | 2019-07-12 | 台州半城暖通科技有限公司 | A kind of filtration manifold |
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| CN111779864A (en) | 2020-10-16 |
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