CN108612893A - A kind of water inlet automatic time delay valve - Google Patents
A kind of water inlet automatic time delay valve Download PDFInfo
- Publication number
- CN108612893A CN108612893A CN201810483839.3A CN201810483839A CN108612893A CN 108612893 A CN108612893 A CN 108612893A CN 201810483839 A CN201810483839 A CN 201810483839A CN 108612893 A CN108612893 A CN 108612893A
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- needle
- chamber
- water
- 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
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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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
- F16K21/12—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with hydraulically-operated opening means; with arrangements for pressure relief before opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
Abstract
The invention discloses a kind of water inlet automatic time delay valves, it includes valve body, valve body is equipped with intake tunnel and exhalant canal, water shutoff circle is equipped between intake tunnel and exhalant canal, valve body is equipped with the manual regulating switch component of elasticity, the spool of the other side of water shutoff circle, spool is equipped with spool chamber, spool front cover component is equipped at the one end open of spool chamber, spool front cover component is equipped with front cover hole, pressure cap is fixed in spool chamber, the spool pushing block component that can be slided in valve chamber is additionally provided in spool chamber, the manual regulating switch component of elasticity also is provided with can be plugged into manual needle in front cover hole；Spool chamber is equipped with spool water hole, and there are pressure cap gaps between pressure cap and spool pushing block component.The present invention generates the delay function that waterpower pushes principle to generate buffering using valve body embedding structure, can complete automatic time delay bath, have automatic cleaning function, and service life is long, effectively extends the cleaning efficiency of toilet.
Description
【Technical field】
The present invention relates to a kind of water inlet automatic time delay valves.
【Background technology】
Existing time-delay valve is mostly the trepanning on floating body, then covers filter screen on hole, water by filter screen from
Hole on floating body enters delay chamber, and the time has grown filter screen and has been easy to be blocked by the sundries in water, water cannot enter delay chamber or into
The water level of the water entered is inadequate, does not have the effect that reliable and stable delays time to control discharges water；In addition also have plenty of in main body and floating body
Cooperation at main body inner wall on be provided with gutter, such gutter is not easy to be blocked by sundries, and delay chamber water inlet is smooth, but
Since gutter is opened in main body inner wall, processing is big, and production cost is high.
Currently, there is delay to rinse, the valve class product with the flushing device for toilet of flow control function is automatically closed, only with manually
The function of flow is controlled, and flushing toiler drain valve and inlet valve water replenishing are all that single theory of mechanics structure does not generate mutually
Action is used.Flow is too small when in bath, hydraulic pressure is low, influences flushing effect；Flow is excessive when hydraulic pressure is high, serious waste water resource.
And hand control valve due to its most volume it is bigger than normal, it is complicated, be unfavorable for the control of product cost.
Therefore, pole needs one kind that can ensure that water yield is stablized, and ensures effectively save water under the premise of flushing effect, and has
There is automatic time delay flushing function, effectively extends the water inlet automatic time delay valve of the cleaning efficiency of toilet.
【Invention content】
It is an object of the invention in place of overcome the deficiencies in the prior art, provide a kind of to complete automatic time delay bath, tool
There is automatic cleaning function, service life is long, effectively extends the water inlet automatic time delay valve of the cleaning efficiency of toilet.
The object of the present invention is achieved like this：
A kind of water inlet automatic time delay valve, it is characterised in that it includes valve body, and valve body is equipped with intake tunnel and exhalant canal, into
Water shutoff circle is equipped between aquaporin and exhalant canal, the valve body of the side of water shutoff circle is equipped with the manual regulating switch component of elasticity,
Spool is equipped in the intake tunnel of the other side of water shutoff circle, spool is equipped with spool chamber, and being equipped at the one end open of spool chamber can slide
It is equipped with front cover hole, is fixed with and holds in spool chamber with the spool front cover component of water shutoff circle cooperation water shutoff, spool front cover component after dynamic
Gland is additionally provided with the spool pushing block component that can be slided in valve chamber in spool chamber, and one end of spool pushing block component may pass through pressure-bearing
Lid is inserted into front cover hole, and the manual regulating switch component of elasticity also is provided with can be plugged into front cover hole and can ejection spool pushing block group
The manual needle of part；Pressure cap is to being equipped with spool water hole on spool chamber between valve chamber bottom, pressure cap and spool pushing block component it
Between there are pressure cap gap, be additionally provided with the valve core spring resetted with movable valve plug pushing block component, the spool chamber of spool chamber in spool chamber
Bottom wall is equipped with pressure relief device and small water hole.
A kind of water inlet automatic time delay valve as described above, it is characterised in that the manual regulating switch component of elasticity includes can be in valve
One end of the holder slided on body, manual needle passes through holder, is fixed on the manual needle of holder and connects with holder screw thread
The nut connect, the manual needle being inserted into valve body are equipped with volute spring.
A kind of water inlet automatic time delay valve as described above, it is characterised in that pressure relief device includes being arranged in spool chamber bottom wall
Relief hole, spool chamber bottom wall are equipped with the pressure release block for opening or closing relief hole.
A kind of water inlet automatic time delay valve as described above, it is characterised in that valve core spring is pin type spring, pin type spring
One end passes through small water hole, and there are gaps between the pin type spring and valve chamber bottom wall in small water hole.
A kind of water inlet automatic time delay valve as described above, it is characterised in that spool front cover component includes that can be slided in valve chamber
Preceding decorative cover, preceding decorative cover front end is equipped with the water sealing slice for coordinating water shutoff with water shutoff circle, and it is close by briquetting to be fixed with needle in front cover hole
Seal, needle sealing ring are equipped with the needle sealing collar aperture passed through for manual needle or spool pushing block component.
A kind of water inlet automatic time delay valve as described above, it is characterised in that spool pushing block component includes needle, is consolidated on needle
There are the spool pushing block that can be slided in valve chamber, the outer annular edge of spool pushing block to be equipped with the sealing ring with valve chamber inner wall fitted seal surely,
The front end of spool pushing block is equipped with valve core housing, and needle is inserted into valve core housing.
A kind of water inlet automatic time delay valve as described above, it is characterised in that manual needle includes needle ontology, needle ontology
Upper fixing sleeve is connected to valve needle cover, and one end of valve needle cover is equipped with needle pushing block.
A kind of water inlet automatic time delay valve as described above, it is characterised in that the side of water shutoff circle is additionally provided with positioning in valve body
Circle, the middle part of locating ring are equipped with the location hole passed through for manual needle.
The beneficial effects of the invention are as follows：
The present invention generates waterpower using valve body embedding structure and principle is pushed to generate the delay function of buffering, can complete to prolong automatically
Shi Chongshui has automatic cleaning function, and service life is long, effectively extends the cleaning efficiency of toilet.
【Description of the drawings】
Fig. 1 is the original water shutoff status diagram of the present invention；
Fig. 2 is the portions the A enlarged drawing of Fig. 1；
Fig. 3 is that the present invention enters water inlet status diagram；
Fig. 4 is the portions the B enlarged drawing of Fig. 3；
Fig. 5 is the portions the C enlarged drawing of Fig. 3；
Fig. 6 is structure of the invention explosive view.
【Specific implementation mode】
The invention will be further described below in conjunction with the accompanying drawings：
A kind of water inlet automatic time delay valve comprising valve body 1, valve body 1 are equipped with intake tunnel 2 and exhalant canal 3, intake tunnel
Water shutoff circle 4 is equipped between 2 and exhalant canal 3, the valve body 1 of the side of water shutoff circle 4 is equipped with the manual regulating switch component 5 of elasticity,
It is equipped with spool 6 in the intake tunnel 2 of the other side of water shutoff circle 4, spool 6 is equipped with spool chamber 61, at the one end open of spool chamber 61
The spool front cover component 62 of water shutoff, spool front cover component 62 is coordinated to be equipped with front cover hole 63, valve equipped with slidably rear and water shutoff circle
It is fixed with pressure cap 64 in core cavity 61, the spool pushing block component 65 that can be slided in valve chamber is additionally provided in spool chamber 61, spool pushes away
One end of block assembly 65 may pass through pressure cap 64 and be inserted into front cover hole 63, and elastic manual regulating switch component 5 also is provided with to insert
Enter into front cover hole and can ejection spool pushing block component manual needle 51；Pressure cap 64 is between valve chamber bottom on spool chamber 61
Equipped with spool water hole 66, there are pressure cap gap 67 between pressure cap 64 and spool pushing block component 65, it is additionally provided in spool chamber 61
With the valve core spring 68 that movable valve plug pushing block component resets, the spool chamber bottom wall 610 of spool chamber 61 is equipped with pressure relief device 7 and small water hole
8。
The pressure relief device 7 of the present invention includes that relief hole 71 in spool chamber bottom wall 610 is arranged, and the quantity of relief hole 71 can be with
It it is 1-4, spool chamber bottom wall 610 is equipped with the pressure release block 72 for opening or closing relief hole, and 72 inside of pressure release block, which is equipped with, is stuck in spool
The buckle 721 of 610 inside of bottom of chamber wall, the outside of pressure release block 72 are equipped with the block 722 that can close multiple relief holes 71.
The manual regulating switch component 5 of elasticity of the present invention includes the holder 52 that can be slided on valve body 1, manual needle 51
One end passes through holder 52, and the nut 53 being threadedly coupled with holder 52 is fixed on the manual needle 51 of holder, is inserted into valve body
Interior manual needle is equipped with volute spring 54, and holder 52 is oriented to by the orientation lever 55 and positioning sleeve 56 being fixed on valve body 1
Positioning.
The valve core spring 68 of the present invention is pin type spring, and one end of pin type spring passes through small water hole 8, the needle in small water hole 8
There are gaps 681 between formula spring 68 and valve chamber bottom wall 610.
The spool front cover component 62 of the present invention includes the preceding decorative cover 621 that can be slided in valve chamber, and 621 front end of preceding decorative cover is equipped with
Coordinate the water sealing slice 622 of water shutoff with water shutoff circle, front cover hole 63 is interior to be fixed with needle sealing ring 624, needle sealing by briquetting 623
Circle 624 is equipped with the needle sealing collar aperture 625 passed through for manual needle 51 or spool pushing block component 65.
The spool pushing block component 65 of the present invention includes needle 651, and the spool that can be slided in valve chamber is fixed on needle 651
Pushing block 652, the outer annular edge of spool pushing block 652 are equipped with the sealing ring 653 with valve chamber inner wall fitted seal, before spool pushing block 652
End is equipped with valve core housing 654, and needle 651 is inserted into valve core housing 654.
The side of water shutoff circle 4 is additionally provided with locating ring 9 in the valve body of the present invention, and the middle part of locating ring 9, which is equipped with, supplies manual needle
51 location holes 91 passed through.
The manual needle 51 of the present invention includes needle ontology 511, and fixing sleeve is connected to valve needle cover 512, valve on needle ontology 511
One end of needle guard 512 is equipped with needle pushing block 513.The side of needle pushing block 513 sets gasket 514, one end of volute spring 54 with
Locating ring 8 offsets, and the other end and the needle pushing block 51 of volute spring 54 offset.
The exhalant canal 3 of the present invention is connected with anti-siphonage pipe 31, and anti-siphonage pipe 31 includes inner tube 311 and outer tube 312, inner tube
311 and 312 upper end of outer tube communicate, the outlet of anti-siphonage pipe 31 is equipped with anti-siphon component 32, and anti-siphon component 32 includes being fixed on
Anti- siphon lid 33 on the outer tube of anti-siphonage pipe 31 is fixed with and can be opened or closed by anti-siphon head cover 34 on anti-siphon lid 33
The anti-siphon lower cover 35 of the inner tube of anti-siphonage pipe 31.Anti- siphon lower cover 35 moves up, inner tube and the outer tube phase of anti-siphonage pipe 31
Logical, water flows into outer tube from inner tube and flows out valve body again.
Nut 53 is pushed, to drive manual needle 51 to move, before manual needle 51 passes through on spool front cover component 62
63 ejection spool pushing block component 65 of cap bore, is in water shutoff state at this time.
6 inside of spool generates pressure when due to pushing, and pressure release block 72, which is pressurized, is detached from valve chamber bottom wall 610, and relief hole 71 is opened
Play the role of pressure release.When unclamping nut 53, under the effect of volute spring 54, manual needle 51 returns to original position.Manual needle 51 from
After valve opening needle seals collar aperture 625, the hydraulic pressure in compression chamber F between the pressure cap 64 in spool chamber 61 and spool front cover component 62
It can disengage to come from the needle of front cover hole 63 sealing collar aperture 625, device has begun to enter into water state at this time.
When water inlet, pressure release block 72 is adjacent to form sealing surface E by the impulse force of water with valve chamber bottom wall 610.Water is also simultaneously from pin type
Gap 681 between spring 68 and valve chamber bottom wall 610 flows into inside spool chamber 61, make spool pushing block 652 and valve chamber bottom wall 610 it
Between spool chamber form compression chamber D, the promotion spool pushing block component 65 while forming compression chamber D.Come before and after pin type spring 68
When returning activity, the gap 681 between automatic cleaning pin type spring 68 and valve chamber bottom wall 610 can be played, so that the present invention is had automatic
Cleaning function prevents inlet opening from causing blockages, and greatly enhances the service life of the present invention.
When needle 651, spool pushing block 652, sealing ring 653 generate sealing surface with the cooperation of needle sealing ring 624, water can lead to
It crosses pressure cap 64 and the pressure cap gap 67 of spool pushing block component 6 flows into compression chamber F.It is pushed while forming compression chamber F
Spool front cover component 62, make water sealing slice 622 and water shutoff circle 4 be adjacent to completely to form sealing surface after be at water shutoff state.
Claims (8)
1. a kind of water inlet automatic time delay valve, it is characterised in that it includes valve body (1), and valve body (1) is equipped with intake tunnel (2) and water outlet
Channel (3) is equipped with water shutoff circle (4), on the valve body (1) of the side of water shutoff circle (4) between intake tunnel (2) and exhalant canal (3)
Equipped with the manual regulating switch component (5) of elasticity, spool (6), spool are equipped in the intake tunnel (2) of the other side of water shutoff circle (4)
(6) it is equipped with spool chamber (61), after being equipped with slidably at the one end open of spool chamber (61) and before the spool of water shutoff circle cooperation water shutoff
Cap assemblies (62), spool front cover component (62) are equipped with front cover hole (63), pressure cap (64), spool are fixed in spool chamber (61)
It is additionally provided with the spool pushing block component (65) that can be slided in valve chamber in chamber (61), one end of spool pushing block component (65), which may pass through, holds
Gland (64) is inserted into front cover hole (63), and the manual regulating switch component (5) of elasticity also is provided with can be plugged into front cover hole and can
The manual needle (51) of ejection spool pushing block component；Pressure cap (64) is equipped with spool water between arriving valve chamber bottom on spool chamber (61)
Hole (66), there are pressure cap gap (67) between pressure cap (64) and spool pushing block component (65), spool chamber (61) is interior to be additionally provided with
With the valve core spring (68) that movable valve plug pushing block component resets, the spool chamber bottom wall (610) of spool chamber (61) is equipped with pressure relief device (7)
With small water hole (8).
2. a kind of water inlet automatic time delay valve according to claim 1, it is characterised in that the manual regulating switch component (5) of elasticity
Including the holder (52) that can be slided on valve body (1), one end of manual needle (51) passes through holder (52), passes through the manual of holder
The nut (53) being threadedly coupled with holder (52) is fixed on needle (51), the manual needle being inserted into valve body is equipped with Conical Projectile
Spring (54).
3. a kind of water inlet automatic time delay valve according to claim 1, it is characterised in that pressure relief device (7) includes being arranged in valve
The relief hole (71) of core cavity bottom wall (610), spool chamber bottom wall (610) are equipped with the pressure release block (72) for opening or closing relief hole.
4. a kind of water inlet automatic time delay valve according to claim 1, it is characterised in that valve core spring (68) is pin type spring,
One end of pin type spring passes through small water hole (8), between the pin type spring (68) and valve chamber bottom wall (610) in small water hole (8) there are
Gap (681).
5. a kind of water inlet automatic time delay valve according to claim 1, it is characterised in that spool front cover component (62) includes can
The preceding decorative cover (621) slided in valve chamber, preceding decorative cover (621) front end is equipped with the water sealing slice (622) for coordinating water shutoff with water shutoff circle, preceding
Needle sealing ring (624) is fixed with by briquetting (623) in cap bore (63), needle sealing ring (624), which is equipped with, supplies manual needle
(51) or spool pushing block component (65) pass through needle sealing collar aperture (625).
6. a kind of water inlet automatic time delay valve according to claim 1, it is characterised in that spool pushing block component (65) includes valve
Needle (651) is fixed with the spool pushing block (652) that can be slided in valve chamber, the outer annular edge of spool pushing block (652) on needle (651)
Equipped with the sealing ring (653) with valve chamber inner wall fitted seal, the front end of spool pushing block (652) is equipped with valve core housing (654), needle
(651) it is inserted into valve core housing (654).
7. a kind of water inlet automatic time delay valve according to claim 2, it is characterised in that manual needle (51) includes needle sheet
Body (511), fixing sleeve is connected to valve needle cover (512) on needle ontology (511), and one end of valve needle cover (512) is equipped with needle pushing block
(513)。
8. a kind of water inlet automatic time delay valve according to claim 2, it is characterised in that the side of water shutoff circle (4) is also in valve body
Equipped with locating ring (9), the middle part of locating ring (9) is equipped with the location hole (91) passed through for manual needle (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483839.3A CN108612893B (en) | 2018-05-19 | 2018-05-19 | Automatic time delay valve of intaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810483839.3A CN108612893B (en) | 2018-05-19 | 2018-05-19 | Automatic time delay valve of intaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108612893A true CN108612893A (en) | 2018-10-02 |
| CN108612893B CN108612893B (en) | 2023-10-03 |
Family
ID=63663551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810483839.3A Active CN108612893B (en) | 2018-05-19 | 2018-05-19 | Automatic time delay valve of intaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612893B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4041980A (en) * | 1975-07-25 | 1977-08-16 | Sulzer Brothers Limited | Control valve having two independently driven valves |
| EP0637710A1 (en) * | 1993-07-10 | 1995-02-08 | Friedrich Grohe Aktiengesellschaft | Self-closing valve |
| CN2253792Y (en) * | 1996-02-14 | 1997-05-07 | 张秋生 | Self-locking adjusting time-delay self-close valve |
| DE19935167A1 (en) * | 1999-07-28 | 2001-02-01 | Dal Georg Rost & Soehne Sanita | Self closing valve has main closure element, valve seating, load relieving chamber, equalizing duct and nozzle, hollow cylinder with spindle and mixer chamber |
| CN2625458Y (en) * | 2003-05-21 | 2004-07-14 | 林声雁 | Vertical flushing valve |
| FR2913085A1 (en) * | 2007-02-27 | 2008-08-29 | Delabie Sa | Flexible trigger delayed valve for delivering water to sanitary appliance, has orifices each closed by flow regulator to maintain counter-pressure upstream of main seat to cause maximal lift of piston in chamber even in low pressure |
| CN202284320U (en) * | 2011-11-01 | 2012-06-27 | 开平市国陶卫浴五金制品有限公司 | Time-delay flushing valve with embedded box |
| CN103696470A (en) * | 2013-11-05 | 2014-04-02 | 黄石兴阀科技有限公司 | Three-cavity self-closing time-delay flushing valve core |
| CN103953771A (en) * | 2014-05-14 | 2014-07-30 | 福建蓝景环保科技有限公司 | Valve element of small-sized bottom-inlet side-outlet magnetic time delay valve |
| DE102014113675A1 (en) * | 2013-09-23 | 2015-03-26 | Delabie | Time-delayed automatic closing faucet |
| CN105980749A (en) * | 2014-01-24 | 2016-09-28 | Bery 知识产权与资产管理恢复有限责任公司 | Transmission element device for two-way timing |
| CN106321922A (en) * | 2016-08-22 | 2017-01-11 | 开平市玛格纳卫浴有限公司 | Hydraulically-delayed self-closed water-saving water faucet valve element |
| CN206054866U (en) * | 2016-09-26 | 2017-03-29 | 温州阿母斯丹洁具科技有限公司 | A kind of light push type stool valve delay-self-closing valve element |
| CN208501821U (en) * | 2018-05-19 | 2019-02-15 | 中山市美图塑料工业有限公司 | A kind of water inlet automatic buffer delay flushing valve |
-
2018
- 2018-05-19 CN CN201810483839.3A patent/CN108612893B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4041980A (en) * | 1975-07-25 | 1977-08-16 | Sulzer Brothers Limited | Control valve having two independently driven valves |
| EP0637710A1 (en) * | 1993-07-10 | 1995-02-08 | Friedrich Grohe Aktiengesellschaft | Self-closing valve |
| CN2253792Y (en) * | 1996-02-14 | 1997-05-07 | 张秋生 | Self-locking adjusting time-delay self-close valve |
| DE19935167A1 (en) * | 1999-07-28 | 2001-02-01 | Dal Georg Rost & Soehne Sanita | Self closing valve has main closure element, valve seating, load relieving chamber, equalizing duct and nozzle, hollow cylinder with spindle and mixer chamber |
| CN2625458Y (en) * | 2003-05-21 | 2004-07-14 | 林声雁 | Vertical flushing valve |
| FR2913085A1 (en) * | 2007-02-27 | 2008-08-29 | Delabie Sa | Flexible trigger delayed valve for delivering water to sanitary appliance, has orifices each closed by flow regulator to maintain counter-pressure upstream of main seat to cause maximal lift of piston in chamber even in low pressure |
| CN202284320U (en) * | 2011-11-01 | 2012-06-27 | 开平市国陶卫浴五金制品有限公司 | Time-delay flushing valve with embedded box |
| DE102014113675A1 (en) * | 2013-09-23 | 2015-03-26 | Delabie | Time-delayed automatic closing faucet |
| CN103696470A (en) * | 2013-11-05 | 2014-04-02 | 黄石兴阀科技有限公司 | Three-cavity self-closing time-delay flushing valve core |
| CN105980749A (en) * | 2014-01-24 | 2016-09-28 | Bery 知识产权与资产管理恢复有限责任公司 | Transmission element device for two-way timing |
| CN103953771A (en) * | 2014-05-14 | 2014-07-30 | 福建蓝景环保科技有限公司 | Valve element of small-sized bottom-inlet side-outlet magnetic time delay valve |
| CN106321922A (en) * | 2016-08-22 | 2017-01-11 | 开平市玛格纳卫浴有限公司 | Hydraulically-delayed self-closed water-saving water faucet valve element |
| CN206054866U (en) * | 2016-09-26 | 2017-03-29 | 温州阿母斯丹洁具科技有限公司 | A kind of light push type stool valve delay-self-closing valve element |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108612893B (en) | 2023-10-03 |
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