CN202937864U - Water hammer vibration sound-free electromagnetic valve base and water path structure - Google Patents

Water hammer vibration sound-free electromagnetic valve base and water path structure Download PDF

Info

Publication number
CN202937864U
CN202937864U CN 201220580100 CN201220580100U CN202937864U CN 202937864 U CN202937864 U CN 202937864U CN 201220580100 CN201220580100 CN 201220580100 CN 201220580100 U CN201220580100 U CN 201220580100U CN 202937864 U CN202937864 U CN 202937864U
Authority
CN
China
Prior art keywords
water
valve seat
solenoid valve
endoporus
pressurized
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.)
Withdrawn - After Issue
Application number
CN 201220580100
Other languages
Chinese (zh)
Inventor
陈金富
钱中华
曾凡良
俞彬
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 TWEIS INUDCTION SANITARY WARES CO Ltd
Original Assignee
WENZHOU TWEIS INUDCTION SANITARY WARES 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 WENZHOU TWEIS INUDCTION SANITARY WARES CO Ltd filed Critical WENZHOU TWEIS INUDCTION SANITARY WARES CO Ltd
Priority to CN 201220580100 priority Critical patent/CN202937864U/en
Application granted granted Critical
Publication of CN202937864U publication Critical patent/CN202937864U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Images

Landscapes

  • Details Of Valves (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The utility model discloses a water hammer vibration sound-free electromagnetic valve base and a water path structure, and relates to a noncontact electromagnetic valve base for automatically controlling domestic water products. The electromagnetic valve base comprises an electromagnetic valve, an electromagnetic valve base body, a valve base cylinder, a valve membrane and a water inlet supercharging ring which are connected, wherein a structure of closing a water outlet by the valve membrane of the electromagnetic valve is changed into a structure of closing the water inlet by the valve membrane of the electromagnetic valve, because of a pushing action of a water inlet pressure of the water inlet, the speed of descending closing of the valve membrane is stopped or reduced, the water hammer vibration generated by rapidly closing the valve membrane is effectively reduced or avoided, the service life of the valve membrane of the electromagnetic valve is prolonged, and the vibration noise generated by the domestic water product when being closed is lowered.

Description

A kind of solenoid valve seat and waterway structure without the water hammer chatter
Technical field
The utility model relates to solenoid valve seat and the waterway structure in a kind of contactless automatic control domestic water product, especially a kind of solenoid valve seat and waterway structure without the water hammer chatter.
Background technique
At present, the domestic water product of known contactless automatic control both at home and abroad, the water hammer chatter appears when product is closed, when hydraulic pressure is too high, the product water supply hose all vibrates to get spring, particularly the user that lives of multi-storey building is when water in the dead of night, and the noise of its water hammer vibration has reached the degree that disturbs residents.
Summary of the invention
The utility model provides a kind of solenoid valve seat without the water hammer chatter and waterway structure, will solve exactly the water hammer chatter appears in contactless automatic control domestic water product when closing technical problem.
the technological scheme that its technical problem that solves the utility model adopts is: be provided with solenoid valve seat in solenoid valve base, bottom at solenoid valve seat inwardly is provided with endoporus, be provided with pressurized water and pressure relief water interlayer in the neutral position of endoporus, the endoporus on pressurized water and pressure relief water interlayer both sides is provided with the supercharging water chamber, the top of both sides supercharging water chamber is respectively equipped with the pressure release flowing hole, the center, top of pressurized water and pressure relief water interlayer is provided with relief hole, the pressurized water cylindrical minimum outer diameter that pressure relief water circulation road and solenoid valve seat middle part falls in together with the medium position of pressure relief water interlayer laterally is provided with connects, the solenoid valve seat bottom is provided with the valve matrix, be provided with in the central bore of valve matrix into the water pressurized ring, the solenoid valve seat cylindrical is provided with the valve seat cylinder barrel, valve seat cylinder barrel bottom is provided with water inlet and water outlet, insert in the valve seat cylinder barrel on the solenoid valve seat bottom stage with being provided with to be buckled in into the valve matrix of water pressurized ring, be assembled into the solenoid valve seat assembly, again solenoid valve is buckled in the solenoid valve seat upper end, be tightened in the product valve body with locking nut.when solenoid valve is opened, the movable iron core of electromagnetic valve sealing head is up, the relief hole that breaks away from the interior pressurized water of solenoid valve seat and center, pressure relief water interlayer top, relief hole is opened, the pressure release flowing hole of press water in solenoid valve seat in pressurized water and pressure relief water interlayer both sides supercharging water chamber by supercharging water chamber top, both sides pressurized water and the relief hole at center, pressure relief water interlayer top and the horizontal pressure relief water circulation road discharge pressure release in the middle part of pressurized water and pressure relief water interlayer in the solenoid valve seat, flow to the water outlet of product valve body discharged to the pressure release rhone of valve seat cylinder barrel, at this moment, because the pressure of pressurized water in solenoid valve seat and pressure relief water interlayer both sides supercharging water chamber is drained decompression, pressure in the supercharging water chamber and the intake pressure of water inlet have formed an obvious pressure difference, pressure in the supercharging water chamber is less than intake pressure, under the promotion of intake pressure, the valve matrix raises up to the direction of supercharging water chamber, instantaneous time has broken away from the water inlet arc sealing surface, its water inlet and water outlet are connected, the water inlet of water inlet is flowed out to water outlet, it is the water outlet of product water outlet face, in the water inlet of water inlet to same time that water outlet flows out, the supercharging of intaking of a part of water inlet supercharging groove by the water inlet pressurized ring in valve matrix endoporus pressurized water and supercharging water chamber on pressure relief water interlayer both sides in the solenoid valve seat, when closed electromagnetic valve, the movable iron core of electromagnetic valve sealing head is descending, block pressurized water in the solenoid valve seat endoporus and the relief hole at center, pressure relief water interlayer top, in pressurized water and pressure relief water interlayer both sides supercharging water chamber, the water of institute's supercharging is drained nowhere, pressure in the supercharging water chamber just increases gradually, force the valve matrix to the direction of water inlet arc sealing surface to lower convexity, its to the speed of lower convexity again under the promotion of water inlet intake pressure, stop or the speed of valve matrix to lower convexity that slowed down, cause the valve matrix slowly near and be adjacent to the water inlet arc sealing surface, until close the water inlet, it is product water outlet face sealing, complete a work cycle.
The beneficial effects of the utility model are: due to the change of solenoid valve seat waterway structure, solenoid valve valve matrix is when closing into water, under the promotion of the intake pressure of water inlet, the closing velocity of prevention and the valve matrix that slowed down, make its valve matrix be slowly near and be adjacent to the water inlet arc sealing surface, rather than card crash quick closedown once, the phenomenon of its water hammer vibration is just overcome or has been avoided, thereby strengthened the working life of solenoid valve valve matrix, reduced the noise of the water hammer vibration of domestic water product when closing.
Description of drawings
Below in conjunction with Figure of description and embodiment, the utility model is further illustrated.
Fig. 1 is the sectional structure chart of the utility model in off position the time.
Fig. 2 is the worm's eye view of solenoid valve seat in Fig. 1 (4).
Fig. 3 is the cross section view of solenoid valve seat in Fig. 1 (4).
Fig. 4 is the profile stereogram of solenoid valve seat in Fig. 1 (4).
Fig. 5 is that partial sectional view is looked on the left side of solenoid valve seat in Fig. 1 (4).
Fig. 6 is the cross section view of valve seat cylinder barrel (5) in Fig. 1.
Fig. 7 is the profile stereogram of valve seat cylinder barrel (5) in Fig. 1.
Fig. 8 is the cross section view of valve matrix (12) in Fig. 1.
Fig. 9 be intake in Fig. 1 pressurized ring (10) be Figure 10 A-A to worm's eye view.
Figure 10 is the plan view of pressurized ring (10) of intaking in Fig. 1.
Figure 11 is that sectional view is looked on intake in Fig. 1 left side of pressurized ring (10).
Figure 12 be intake in Fig. 1 pressurized ring (10) be Figure 10 A-A to plan view.
1. solenoid valves in figure, 2. movable iron core of electromagnetic valve sealing head, 3. pressure release flowing hole, 4. solenoid valve seat, 5. valve seat cylinder barrel, 6. pressure release rhone, 7. supercharging water chamber, 8. water inlet arc sealing surface, 9. water inlet, 10. water inlet pressurized ring, 11. water outlets, 12. valve matrixs, 13. the supercharging groove, 14. pressurized waters and pressure relief water interlayer, 15. pressure relief water circulation roads, 16. relief hole, 17. locking nuts.
Embodiment
in explanation 5 accompanying drawings, the bottom of solenoid valve (1) is provided with solenoid valve seat (4), bottom at solenoid valve seat (4) inwardly is provided with endoporus, be provided with pressurized water and pressure relief water interlayer (14) in the endoporus neutral position, the endoporus on pressurized water and pressure relief water interlayer (14) both sides is provided with supercharging water chamber (7), the top of both sides supercharging water chamber (7) is respectively equipped with pressure release flowing hole (3), the center, top of pressurized water and pressure relief water interlayer (14) is provided with relief hole (16), the pressurized water cylindrical minimum outer diameter that pressure relief water circulation road (15) and solenoid valve seat (4) middle part falls in together with the medium position of pressure relief water interlayer (14) is laterally established connects, solenoid valve seat (4) bottom is provided with valve matrix (12), be provided with in the central bore of valve matrix (12) into water pressurized ring (10), solenoid valve seat (4) cylindrical is provided with valve seat cylinder barrel (5), valve seat cylinder barrel (5) bottom is provided with water inlet (9) and water outlet (11), to be provided with on the bottom stage that the valve matrix (12) that increases ring (10) into water is buckled in solenoid valve seat (4) and insert in valve seat cylinder barrel (5), be assembled into the solenoid valve seat assembly, again solenoid valve (1) is buckled in the upper end of electric valve seat (4), be tightened in the product valve body with locking nut (17).when solenoid valve (1) is opened, movable iron core of electromagnetic valve sealing head (2) is up, the relief hole (16) that breaks away from the interior pressurized water of solenoid valve seat (4) and pressure relief water interlayer (14) center, top, relief hole (16) is opened, the pressure release flowing hole (3) of press water in the interior pressurized water of solenoid valve seat (4) and pressure relief water interlayer (14) both sides supercharging water chamber (7) by both sides supercharging water chamber (7) top is to interior the pressurized water of solenoid valve seat (4) and the relief hole (16) at pressure relief water interlayer (14) center, top and horizontal pressure relief water circulation road (15) the discharge pressure release in the middle part of pressurized water and pressure relief water interlayer (14), flow to the exhalant canal of product valve body discharged to the pressure release rhone (6) of valve seat cylinder barrel (5), at this moment, because the pressure of the interior pressurized water of solenoid valve seat (4) and pressure relief water interlayer (14) both sides supercharging water chamber (7) is drained decompression, pressure in supercharging water chamber (7) is less than the intake pressure of water inlet (9), under the promotion of intake pressure, valve matrix (12) raises up to the direction of supercharging water chamber (7), instantaneous time has broken away from water inlet arc sealing surface (8), its water inlet (9) and water outlet (11) are connected, the water inlet of water inlet (9) flows out to the exhalant canal of product valve body to water outlet (11), it is the water outlet of product water outlet face, the water inlet of (9) is to the same time of water outlet (11) outflow in the water inlet, the a part of water inlet supercharging groove (13) by the water inlet pressurized ring (10) in valve matrix (12) endoporus is to the supercharging of intaking of the supercharging water chamber (7) on interior the pressurized water of solenoid valve seat (4) and pressure relief water interlayer (14) both sides, when solenoid valve (1) when closing, movable iron core of electromagnetic valve sealing head (2) is descending, block pressurized water in the middle of solenoid valve seat (4) endoporus and the relief hole (16) at pressure relief water interlayer (14) center, top, the water of pressurized water and the supercharging of pressure relief water interlayer (14) both sides supercharging water chamber (7) interior institute is drained nowhere, pressure in supercharging water chamber (7) just increases gradually, force valve matrix (12) to the direction of water inlet arc sealing surface (8) to lower convexity, its downward protruding speed is again under the promotion of water inlet (9) intake pressure, stop or the speed of valve matrix (12) to lower convexity that slowed down, cause valve matrix (12) slowly near and be adjacent to water inlet arc sealing surface (8), until close water inlet (9), it is product water outlet face sealing, complete a work cycle.
solenoid valve seat in figure (4) is as Fig. 1, Fig. 2, Fig. 3, Fig. 4, solenoid valve seat shown in Figure 5 (4) is that a kind of top is square, the bottom is columniform stand, four angles of top projected square part are provided with four screw holes, the center, upper-end surface of projected square part is provided with the endoporus of two-stage different inner diameters, be provided with O shape circle in endoporus, lower cylindrical shape inwardly is provided with endoporus from cylindrical bottom portion, the endoporus neutral position is provided with pressurized water and pressure relief water interlayer (14), what the semicircle endoporus on pressurized water and pressure relief water interlayer (14) both sides was established is supercharging water chamber (7), the top of semicircle endoporus supercharging water chamber (7) is respectively equipped with pressure release flowing hole (3) on both sides, central upper portion position at pressurized water and pressure relief water interlayer (14) is drilled with a relief hole (16), medium position laterally is provided with one pressure relief water circulation road (15) and connects with the minimum outer diameter that cylindrical central part falls in, relief hole (16) upper end of pressurized water and pressure relief water interlayer (14) central upper portion position drilling communicates with movable iron core of electromagnetic valve sealing head (2), the lower end communicates with horizontal pressure relief water circulation road (15), lower cylindrical shape cylindrical upper end is provided with a circle draw-in groove, the third level maximum inner diameter that is provided with O-ring seals and valve seat cylinder barrel (5) in draw-in groove seals mutually, below draw-in groove, the opening of one section minimum outer diameter is the passway of horizontal pressure relief water circulation road (15), the step that lower cylindrical shape bottom cylindrical is provided with the two-stage various outer diameter blocks valve matrix (12).
in figure, valve seat cylinder barrel (5) is as Fig. 1, Fig. 6, valve seat cylinder barrel (5) shown in Figure 7 is a kind of endoporus that is provided with three grades of different inner diameters, the step type cylinder of level Four various outer diameter, its level Four various outer diameter position is respectively: the neutral position of lower end first order minimum outer diameter is provided with a circle groove, the water inlet internal diameter that is provided with first O-ring seals and product valve body in groove seals mutually, upwards number second level external diameter is the external diameter of water outlet (11), upwards number third level external diameter middle part is provided with together the laterally pressure release rhone (6) of break-through again, upwards be provided with second O-ring seals with place, third level external diameter point of contact under the step of fourth stage maximum outside diameter again and the product valve block internal diameter seals mutually, the interior hole site of its three grades of different inner diameters is respectively: the first order minimum endoporus in lower end is water inlet (9), upper-end surface, water inlet (9) circumference is provided with water inlet arc sealing surface (8), upwards a number second level endoporus bottom circle step protruding upward blocks the step that valve matrix (12) lower camber side is protruded, be provided with 11 identical flat water outlets (11) at the circumference that protrudes a circle step inwall, its 11 identical flat water outlets (11) connect with the water inlet (9) of lower end first order minimum diameter, the inwall of top third level maximum inner diameter seals mutually with O-ring seals in the draw-in groove of the cylindrical cylindrical of solenoid valve seat (4) top.
in figure, valve matrix (12) is as Fig. 1, valve matrix (12) shown in Figure 8 is a kind of can raise up under the effect of hydraulic pressure and can be to the circular pads of the arc shape of lower convexity, maximum cylindrical circumference in the cambered surface perk is provided with the step that a circle protrudes up and down, the step that upper cambered surface is protruded is buckled on solenoid valve seat (4) cylindrical bottom portion step, under, the step that cambered surface is protruded is stuck in the step of endoporus bottom, a second level circle protruding upward of valve seat cylinder barrel (5), valve matrix (12) central position is provided with the endoporus of secondary different inner diameters, have the parallel sealing face that a circle exceeds cambered surface on the cambered surface of its endoporus circumference, be provided with in endoporus into water pressurized ring (10).
The pressurized ring (10) of intaking in figure is a kind of disk that is provided with three grades of various outer diameters as Fig. 1, Fig. 9, Figure 10, Figure 11, water inlet pressurized ring (10) shown in Figure 12, be provided with the supercharging groove (13) of three grades of external diameters of one perforation in the same direction of three grades of various outer diameters, the water inlet process supercharging groove (13) of its water inlet (9) is to supercharging water chamber (7) water inlet supercharging.

Claims (5)

1. solenoid valve seat and waterway structure without a water hammer chatter, by solenoid valve (1), solenoid valve seat (4), valve seat cylinder barrel (5), valve matrix (12), water inlet pressurized ring (10) connects to form, it is characterized in that: be provided with solenoid valve seat in solenoid valve base, bottom at solenoid valve seat inwardly is provided with endoporus, be provided with pressurized water and pressure relief water interlayer in the neutral position of endoporus, the endoporus on pressurized water and pressure relief water interlayer both sides is provided with the supercharging water chamber, the top of both sides supercharging water chamber is respectively equipped with the pressure release flowing hole, the center, top of pressurized water and pressure relief water interlayer is provided with relief hole, the pressurized water cylindrical minimum outer diameter that pressure relief water circulation road and solenoid valve seat middle part falls in together with the medium position of pressure relief water interlayer laterally is provided with connects, the solenoid valve seat bottom is provided with the valve matrix, be provided with in the central bore of valve matrix into the water pressurized ring, the solenoid valve seat cylindrical is provided with the valve seat cylinder barrel, valve seat cylinder barrel bottom is provided with water inlet and water outlet, insert in the valve seat cylinder barrel on the solenoid valve seat bottom stage with being provided with to be buckled in into the valve matrix of water pressurized ring, be assembled into the solenoid valve seat assembly, again solenoid valve is buckled in the solenoid valve seat upper end, be tightened in the product valve body with locking nut.
2. a kind of solenoid valve seat and waterway structure without the water hammer chatter according to claim 1, it is characterized in that: solenoid valve seat (4) is that a kind of top is square, the bottom is columniform stand, four angles of top projected square part are provided with four screw holes, the center, upper-end surface of projected square part is provided with the endoporus of two-stage different inner diameters, be provided with O shape circle in endoporus, lower cylindrical shape inwardly is provided with endoporus from cylindrical bottom portion, the endoporus neutral position is provided with pressurized water and pressure relief water interlayer (14), what the semicircle endoporus on pressurized water and pressure relief water interlayer (H) both sides was established is supercharging water chamber (7), the top of semicircle endoporus supercharging water chamber (7) is respectively equipped with pressure release flowing hole (3) on both sides, central upper portion position at pressurized water and pressure relief water interlayer (14) is drilled with a relief hole (16), medium position laterally is provided with one pressure relief water circulation road (15) and connects with the minimum outer diameter that cylindrical central part falls in, relief hole (16) upper end of pressurized water and pressure relief water interlayer (14) central upper portion position drilling communicates with movable iron core of electromagnetic valve sealing head (2), the lower end communicates with horizontal pressure relief water circulation road (15), lower cylindrical shape cylindrical upper end is provided with a circle draw-in groove, the third level maximum inner diameter that is provided with O-ring seals and valve seat cylinder barrel (5) in draw-in groove seals mutually, below draw-in groove, the opening of one section minimum outer diameter is the passway of horizontal pressure relief water circulation road (15), the step that lower cylindrical shape bottom cylindrical is provided with the two-stage various outer diameter blocks valve matrix (12).
3. a kind of solenoid valve seat and waterway structure without the water hammer chatter according to claim 1, it is characterized in that: valve seat cylinder barrel (5) is a kind of endoporus that is provided with three grades of different inner diameters, the step type cylinder of level Four various outer diameter, its level Four various outer diameter position is respectively: the neutral position of lower end first order minimum outer diameter is provided with a circle groove, the water inlet internal diameter that is provided with first O-ring seals and product valve body in groove seals mutually, upwards number second level external diameter is the external diameter of water outlet (11), upwards number third level external diameter middle part is provided with together the laterally pressure release rhone (6) of break-through again, upwards be provided with second O-ring seals with place, third level external diameter point of contact under the step of fourth stage maximum outside diameter again and the product valve block internal diameter seals mutually, the interior hole site of its three grades of different inner diameters is respectively: the first order minimum endoporus in lower end is water inlet (9), upper-end surface, water inlet (9) circumference is provided with water inlet arc sealing surface (8), upwards a number second level endoporus bottom circle step protruding upward blocks the step that valve matrix (12) lower camber side is protruded, be provided with 11 identical flat water outlets (11) at the circumference that protrudes a circle step inwall, its 11 identical flat water outlets (11) connect with the water inlet (9) of lower end first order minimum diameter, the inwall of top third level maximum inner diameter seals mutually with O-ring seals in the draw-in groove of the cylindrical cylindrical of solenoid valve seat (4) top.
4. a kind of solenoid valve seat and waterway structure without the water hammer chatter according to claim 1, it is characterized in that: valve matrix (12) is a kind of can raise up under the effect of hydraulic pressure and can be to the circular pads of the arc shape of lower convexity, maximum cylindrical circumference in the cambered surface perk is provided with the step that a circle protrudes up and down, the step that upper cambered surface is protruded is buckled on solenoid valve seat (4) cylindrical bottom portion step, the step that lower camber side is protruded is stuck in the convex step that goes too far in endoporus bottom, the second level of valve seat cylinder barrel (5), valve matrix (12) central position is provided with the endoporus of secondary different inner diameters, have the parallel sealing face that a circle exceeds cambered surface on the cambered surface of its endoporus circumference, be provided with in endoporus into water pressurized ring (10).
5. a kind of solenoid valve seat and waterway structure without the water hammer chatter according to claim 1, it is characterized in that: water inlet pressurized ring (10) is a kind of disk that is provided with three grades of various outer diameters, same direction at three grades of various outer diameters is provided with the supercharging groove (13) that connects three grades of external diameters, and the water inlet process supercharging groove (13) of its water inlet (9) is to supercharging water chamber (7) water inlet supercharging.
CN 201220580100 2012-10-29 2012-10-29 Water hammer vibration sound-free electromagnetic valve base and water path structure Withdrawn - After Issue CN202937864U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220580100 CN202937864U (en) 2012-10-29 2012-10-29 Water hammer vibration sound-free electromagnetic valve base and water path structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220580100 CN202937864U (en) 2012-10-29 2012-10-29 Water hammer vibration sound-free electromagnetic valve base and water path structure

Publications (1)

Publication Number Publication Date
CN202937864U true CN202937864U (en) 2013-05-15

Family

ID=48322102

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220580100 Withdrawn - After Issue CN202937864U (en) 2012-10-29 2012-10-29 Water hammer vibration sound-free electromagnetic valve base and water path structure

Country Status (1)

Country Link
CN (1) CN202937864U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927348A (en) * 2012-10-29 2013-02-13 温州帝威斯感应洁具有限公司 Electromagnetic valve seat free of water hammer chatter and water path structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102927348A (en) * 2012-10-29 2013-02-13 温州帝威斯感应洁具有限公司 Electromagnetic valve seat free of water hammer chatter and water path structure
CN102927348B (en) * 2012-10-29 2015-05-27 温州阿母斯丹洁具科技有限公司 Electromagnetic valve seat free of water hammer chatter and water path structure

Similar Documents

Publication Publication Date Title
CN102052493A (en) Steam safety valve with backpressure regulating mechanism and elastic valve clack
CN203297709U (en) Bottom-in side-out magnetic type delayed flush valve element
CN202209455U (en) Safe power-driven pressure releasing and holding valve
KR102082539B1 (en) Cylinder device
CN201779280U (en) Piston type pilot solenoid valve
CN201610944U (en) Elevating type micro-damp slow closed check valve
CN202937864U (en) Water hammer vibration sound-free electromagnetic valve base and water path structure
CN204664492U (en) Water filter safety valve
CN203297708U (en) Bottom-in bottom-out magnetic type delayed flush valve element
CN103047457A (en) Water hammer discharge valve
CN203009946U (en) Water hammer discharge valve
CN102927348B (en) Electromagnetic valve seat free of water hammer chatter and water path structure
CN104315230A (en) Forced pilot-operated type water-pressure electromagnetic switch valve with pilot filter
CN202371285U (en) Diaphragm type anti-cavitation and high-pressure-difference adjustable pressure-reducing valve
CN203453560U (en) High-pressure check valve
CN201269329Y (en) Three-way pressure reducing valve
CN102979935A (en) Automatic pressure releasing valve
CN203743548U (en) Special pressure reducing and stabilizing valve for fire protection
CN202392214U (en) Piston-type cavitation-preventing adjustable reducing valve with large pressure difference
CN202056500U (en) Supercritical adjusting drain valve with pressure reducing and throttling plate
CN203256873U (en) Magnetomotive side-inlet bottom-outlet delay flushing valve
CN105202233A (en) High-performance reducing valve with valve closing function
CN2700664Y (en) Simple pressure relief valve
CN205275104U (en) Hydraulic jack base convenient to maintenance
CN109723874A (en) A kind of self-closing spool of light push type delay

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130515

Effective date of abandoning: 20150527

RGAV Abandon patent right to avoid regrant