CN208595285U - A kind of waste water solenoid valve preventing blocked primary orifice waste water - Google Patents
A kind of waste water solenoid valve preventing blocked primary orifice waste water Download PDFInfo
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- CN208595285U CN208595285U CN201821169268.8U CN201821169268U CN208595285U CN 208595285 U CN208595285 U CN 208595285U CN 201821169268 U CN201821169268 U CN 201821169268U CN 208595285 U CN208595285 U CN 208595285U
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- waste water
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- orifice
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Abstract
The utility model relates to a kind of waste water solenoid valves for preventing blocked primary orifice waste water, including valve seat and electromagnetic control apparatus, valve seat is equipped with intake tunnel and exhalant canal, diaphragm and bracket are installed on the valve seat, diaphragm or bracket are equipped with first through hole and the second through-hole, the aperture of second through-hole is greater than the aperture of first through hole, electromagnetic control apparatus is equipped with dynamic iron core, the upper end of second through-hole is correspondingly arranged with dynamic iron core, the lower end of second through-hole and exhalant canal pass through cavity mutual conduction, the bottom of cavity is provided with throttle orifice, throttle orifice is opposite with dynamic iron core and is coaxially disposed, contact pin is provided on bracket, contact pin can be inserted in throttle orifice, contact pin and throttle orifice clearance fit, throttling passage is constituted between the lateral surface of contact pin and the medial surface of throttle orifice, the lower end position of contact pin to the distance between the upper end position of throttle orifice is throttling The length in channel, the length is between 0.3mm-10mm.Above scheme can reduce water flow noise, and dirt effect is more preferable.
Description
Technical field
The utility model relates to Solenoid Valve Technology field, especially a kind of waste water electromagnetism for preventing blocked primary orifice waste water
Valve.
Background technique
Throttle solenoid valve valve has throttling function, and in use, waste water hole path is easy Crystallization Plugging, influences just
It is often used.
China Patent No. are as follows: 201620374305.3, the applying date is the patent on April 19th, 2016, discloses one kind
Solenoid valve with scale removal mechanism, including valve body, valve rod, diaphragm and electromagnetic drive mechanism, electromagnetic drive mechanism driving stem edge
Valve rod is axial and flexible towards valve body, and diaphragm is fixedly installed on the other end of the valve rod with respect to electromagnetic drive mechanism and is located at valve body
It is interior, runner is provided in valve body, which is provided with flow inlet and outflow port, which sets between flow inlet and outflow port
Set it is opposite with diaphragm cross mouth, solenoid valve is provided with the waste water tunnel in parallel with mouth is crossed in runner, the waste water tunnel and
The end of flow inlet connection is opposite with valve rod and is coaxially disposed, and the end of valve rod towards waste water tunnel is coaxially arranged with constriction,
Constriction protrudes into waste water tunnel and along waste water outside waste water tunnel when electromagnetic drive mechanism drives diaphragm is close to cross mouth by valve rod
Channel axial movement；Constriction is moved to useless out of waste water tunnel when electromagnetic drive mechanism drives diaphragm is separate to cross mouth by valve rod
Outside aquaporin, there is the adjusting gap passed through for fluid between constriction and waste water tunnel inner peripheral surface.In above-mentioned technical proposal, it is
It is stretched axially and towards valve body by electromagnetic drive mechanism driving stem along valve rod, when valve rod driving diaphragm is close crosses mouth, diaphragm
Constriction is driven to be inserted into waste water tunnel, water flow can be flowed through from gap location is adjusted；When valve rod driving diaphragm is far from mouth is crossed, diaphragm band
Dynamic constriction removes waste water tunnel, and valve body is gradually opened, and the moment that constriction leaves waste water tunnel generates difference in flow, logical to waste water
Inner peripheral surface generation in road is washed away, to eliminate the dirt of waste water tunnel inner peripheral surface accumulation, solenoid valve is made to have the function of scale removal, however
Since waste water tunnel is directly to be provided on valve body, higher to the required precision of processing, the pressure of water flow is larger, and water flow is from useless
Aquaporin can generate biggish noise when flowing through.
Summary of the invention
The utility model overcomes the deficiencies in the prior art, provides a kind of waste water electromagnetism for preventing blocked primary orifice waste water
Valve, can reduce water flow noise, and dirt effect is more preferable.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of to prevent blocked primary orifice waste water
Waste water solenoid valve, including valve seat and electromagnetic control apparatus, the valve seat is equipped with intake tunnel and exhalant canal, on the valve seat
Diaphragm and bracket are installed, the bracket is equipped with connector, and connector is equipped with the card slot installed for diaphragm, connector
End is equipped with the installation end face that card slot is caught in for diaphragm, and diaphragm or bracket are equipped with first through hole and the second through-hole, the second through-hole
Aperture be greater than the aperture of first through hole, valve seat is equipped with upper water cavity in the top of diaphragm, and upper water cavity and water inlet is connected in first through hole
Channel, electromagnetic control apparatus are equipped with dynamic iron core, and electromagnetic control apparatus can control dynamic iron core to move up and down, second through-hole
Upper end is correspondingly arranged with dynamic iron core, the lower end of the second through-hole and exhalant canal by cavity mutual conduction, the upper surface of cavity with
The on and off of the second through-hole is realized in diaphragm cooperation, dynamic iron core and the cooperation of the second through-hole, and the bottom of the cavity is provided with section
Discharge orifice, throttle orifice is opposite with dynamic iron core and is coaxially disposed, and throttle orifice makes intake tunnel and exhalant canal that setting, the bracket be connected
On be provided with contact pin, contact pin can be inserted in throttle orifice, contact pin and throttle orifice clearance fit, it is characterised in that: the contact pin it is outer
Constitute throttling passage between side and the medial surface of throttle orifice, the lower end position of contact pin between the upper end position of throttle orifice away from
From the length for throttling passage, the length is between 0.3mm-10mm.
By using above scheme, electromagnetic control apparatus includes reset spring and coil brace, is arranged on coil brace
Coil, diaphragm are caught in realization location and installation, the installation end face at the card slot of bracket by the installation end face of bracket and are obliquely installed, the
Two-way hole is located at the medium position of bracket, and first through hole is located at close to the side of intake tunnel, and the aperture of the second through-hole is greater than the
The aperture of one through-hole moves up under flow action convenient for diaphragm, and wherein the upper end of dynamic iron core and the second through-hole, which seals, cooperates, and second
Through-hole can be coaxially disposed with dynamic iron core, and the lower end of the second through-hole can also be angularly offset setting, and contact pin can be directly mounted at
Two through holes, the second through-hole not with dynamic iron core be coaxially disposed when, contact pin can be set up directly on the connector of bracket, contact pin with
Throttle orifice clearance fit, contact pin are inserted in throttle orifice, can form annulus throttling, when power-off, effect of the dynamic iron core in reset spring
Under move down, realize the second through-hole closing, diaphragm moves down in the presence of hydraulic pressure at this time, thus drive contact pin along section
Discharge orifice moves down, and the water flow of intake tunnel can flow into exhalant canal from the gap location of throttle orifice and contact pin；When energization, dynamic iron core
It moving up under the magnetic force, realizes the conducting of the second through-hole, diaphragm moves up in the presence of hydraulic pressure at this time, thus
Contact pin is driven to move up along throttle orifice, until contact pin is detached from throttle orifice, contact pin underthrust along throttle orifice is dynamic can to carry out dirt
Operation can prevent blocked primary orifice waste water, and water flow enters from the lower end of throttle orifice, and hydraulic pressure is very big, and water flow passes through throttling passage,
It can effectively reduce the pressure of water flow, to reduce the noise of water flow, the lower end position of contact pin is between the upper end position of throttle orifice
Distance be throttling passage length, the length between 0.3mm-10mm, length of interval design rationally, the length of throttling passage
Longer, when water flow passes through throttling passage, it is better that water flow reduces noise result.
The utility model is further arranged so that the upper end position of the installation end face is constituted between the bottom surface of diaphragm
Section face constitutes water stream channel between section face and the medial surface of cavity, and the length in the section face is between 0.4mm-10mm.
By using above scheme, for the length in the section face between 0.4mm-10mm, length of interval design rationally, works as film
When piece moves up, water flow can flow into cavity from the water stream channel, and the maximum length of water stream channel is the length in section face, with film
Piece moves up, and water stream channel shortens, and water stream channel is narrower, and the initial length of water stream channel is longer, and solenoid valve is under flushing state, water
The pressure that stream compresses diaphragm is bigger, and the distance that moves up of diaphragm increases, to make the mobile range of contact pin become larger, also for full
For foot in the case where throttling passage increases, the rising height of diaphragm is sufficiently large, and contact pin is completely disengaged in the process of lifting
Throttle orifice, dirt effect are more preferable.
The connector that is further arranged so that of the utility model is arranged with rubber ring at card slot, rubber ring respectively with
The bottom surface of card slot and the bottom surface of diaphragm are inconsistent, and section face is made of the lateral surface of rubber ring.
By using above scheme, rubber ring is arranged at card slot, the lateral surface of rubber ring may make up section face, for prolonging
The length of long water stream channel, so that the mobile range of contact pin be made to become larger.
The utility model is further arranged so that the bottom surface of the diaphragm has extended downwardly diaphragm extension, and diaphragm prolongs
The shape adaptation of extending portion and card slot, the lower end surface of diaphragm extension and the bottom surface of card slot are inconsistent, and section face is by diaphragm extension
Lateral surface constitute.
By using above scheme, the bottom surface of diaphragm has extended downwardly diaphragm extension, the lower end surface of diaphragm extension
Inconsistent with the bottom surface of card slot, the lateral surface of diaphragm extension is used to extend the length of water stream channel, to make the movement of contact pin
Amplitude becomes larger.
The utility model is further arranged so that the connector is additionally provided with cylindrical surface below card slot, cylindrical surface
The bottom surface of upper end and diaphragm is inconsistent, and the lower end on cylindrical surface is connected with installation end face, and section face is made of cylindrical surface.
By using above scheme, the upper end on cylindrical surface and diaphragm are contradicted, and the lower end on cylindrical surface is connected in installation end face, are increased
The length for having added cylindrical surface, for extending the length of water stream channel, so that the mobile range of contact pin be made to become larger.
Further being arranged so that on the valve seat for the utility model is equipped with throttle pipe, and the throttle orifice setting is throttling
Guan Shang, the throttle pipe are additionally provided with horn mouth above throttle orifice, and bell-mouthed big opening end is towards the direction of contact pin, horn mouth
Osculum end connect with throttle orifice.
By using above scheme, throttle orifice is arranged on throttle pipe, and throttle pipe uses seperated structure with valve seat, can drop
The difficulty of processing of low throttle orifice, horn mouth play guiding role, and structure design is more reasonable.
The utility model is further arranged so that the valve seat is equipped with jack at corresponding throttle pipe, throttle pipe interference
It is inserted in jack, the lower position of the throttle pipe is equipped with annular lug, and the upper surface of annular lug and valve seat are inconsistent, valve seat
It is equipped with the locating part that can prevent throttle pipe from loosening.
By using above scheme, throttle pipe is inserted in jack, can be installed by the bottom of valve seat, then again
Throttle pipe is pressed in valve seat by locating part, prevents throttle pipe from loosening.
The utility model is further arranged so that the locating part is fixed on valve seat, and locating part is equipped with and section
The inconsistent press block in flow tube lower end surface, be additionally provided on the locating part for be connected throttle orifice and intake tunnel to cross water logical
Road.
By using above scheme, locating part can by welding, screw is screwed on or close-fitting is plugged on valve seat, throttle orifice
Lower end be connected with the water passage of locating part, water passage and the intake tunnel of locating part are conducted, the water flow of water passage
It can be flowed into throttle orifice through water passage, the press block of locating part can be pressed on the lower end surface of throttle pipe.
The utility model is further arranged so that second through-hole is arranged on bracket, the second through-hole and dynamic iron core phase
Pair and be coaxially disposed, the contact pin is mounted on the second through hole by needle stand, and needle stand is equipped with the pin hole installed for contact pin, needle
Seat interference is inserted in the second through-hole, is equipped with water-carrying groove along the length direction of its pin hole on the side of needle stand, and water-carrying groove makes second
Setting is connected with exhalant canal for through-hole.
By using above scheme, contact pin close-fitting is inserted in pin hole, and needle stand is directly plugged in the second through hole, sufficiently
The structure on bracket is utilized, mounting means is also simple, water-carrying groove is symmetrically arranged on the lateral surface of needle stand, what the second through-hole went out
Water flow can flow into cavity from water-carrying groove, then flow out from exhalant canal.
The utility model is further arranged so that the needle stand is equipped with sponge in the side close to throttle orifice.
By using above scheme, since water flow can generate biggish noise by throttle orifice, water flow jet on sponge,
It can effectively reduce noise.
The utility model is further described with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the overlooking structure diagram of the utility model；
Fig. 3 is the A-A diagrammatic cross-section of Fig. 2；
Fig. 4 is the B-B diagrammatic cross-section of Fig. 2；
Fig. 5 is electromagnetism the valve opening state schematic diagram；
Fig. 6 is the portion the C enlarged diagram of Fig. 3；
Fig. 7 is the structural schematic diagram of water stream channel；
Fig. 8 is the first extending structure schematic diagram of the length L2 of water stream channel；
Fig. 9 is second of extending structure schematic diagram of the length L2 of water stream channel；
Figure 10 is the third extending structure schematic diagram of the length L2 of water stream channel；
Figure 11 is the structural schematic diagram of locating part；
Figure 12 is the structural schematic diagram of needle stand.
Specific embodiment
As shown in Fig. 1-Figure 12, a kind of waste water solenoid valve preventing blocked primary orifice waste water, including valve seat 1 and Electromagnetic Control
Device 2, valve seat 1 are equipped with intake tunnel 11 and exhalant canal 12, are equipped with diaphragm 3 and bracket 4 on valve seat 1, set on bracket 4
There is connector 41, connector 41 is equipped with the card slot 42 installed for diaphragm 3, and the end of connector 41, which is equipped with, is caught in card for diaphragm 3
The installation end face 411 of slot 42, the installation end face 411 are obliquely installed, and are caught in card slot 42 convenient for diaphragm 3, installation end face 411 is gone back certainly
It can be flat face, bracket 4 is equipped with first through hole 43 and the second through-hole 44, and the aperture of the second through-hole 44 is greater than first through hole 43
Aperture, valve seat 1 is equipped with upper water cavity 13 in the top of diaphragm 3, and upper water cavity 13 and intake tunnel 11, electromagnetism is connected in first through hole 43
Control device 2 is equipped with dynamic iron core 21, coil 22 and reset spring 23, and electromagnetic control apparatus 2 can control to be moved down in dynamic iron core 21
Dynamic, upper end and the dynamic iron core 21 of the second through-hole 44 are correspondingly arranged, and the lower end of the second through-hole 44 and exhalant canal 12 pass through cavity 14
Mutual conduction, the second through-hole 44 are coaxially disposed with dynamic iron core 21, and the lower end of certain second through-hole 44 can also be angularly offset
It need to be only connected with exhalant canal 12, the upper surface of cavity 14 and diaphragm 3 cooperate, and dynamic iron core 21 and the second through-hole 44 cooperate reality
The on and off of existing second through-hole 44, the bottom of cavity 14 are provided with throttle orifice 51, and throttle orifice 51 and dynamic iron core 21 are relatively simultaneously
Coaxial arrangement, throttle orifice 51 makes intake tunnel 11 and setting is connected in exhalant canal 12, is provided with contact pin 6 on bracket 4, contact pin 6 can
It is inserted in throttle orifice 51, contact pin 6 and 51 clearance fit of throttle orifice, structure between the lateral surface of contact pin 6 and the medial surface of throttle orifice 51
At throttling passage 52, the distance between lower end position of contact pin 6 to the upper end position of throttle orifice 51 is the length of throttling passage 52
L1, L1 is between 0.3mm-10mm for the length,
In the present embodiment, install end face 411 upper end position between the bottom surface of diaphragm 3 constitute section face 412, area
Between constitute water stream channel 15 between face 412 and the medial surface of cavity 14, the length L2 in the section face 412 0.4mm-10mm it
Between.
In the present embodiment, as shown in Figure 8: connector 41 is arranged with rubber ring 7 at card slot 42, rubber ring 7 respectively with
The bottom surface of card slot 42 and the bottom surface of diaphragm 3 are inconsistent, and section face 412 is made of the lateral surface of rubber ring 7, for extending water flow
The length L1 in channel 15, so that the mobile range of contact pin 6 be made to become larger.
In the present embodiment, as shown in Figure 9: the bottom surface of diaphragm 3 has extended downwardly diaphragm extension 31, diaphragm extension
31 with the shape adaptation of card slot 42, the lower end surface of diaphragm extension 31 and the bottom surface of card slot 42 are inconsistent, and section face 412 is by diaphragm
The lateral surface of extension 31 is constituted, for extending the length L1 of water stream channel 15, so that the mobile range of contact pin 6 be made to become larger.
In the present embodiment, as shown in Figure 10: connector 41 is additionally provided with cylindrical surface 45, cylindrical surface 45 in the lower section of card slot 42
Upper end and diaphragm 3 bottom surface it is inconsistent, the lower end on cylindrical surface 45 is connected with the upper end of installation end face 411, section face 412
It is made of cylindrical surface 45, for extending the length L1 of water stream channel 15, so that the mobile range of contact pin 6 be made to become larger.
In the present embodiment, throttle pipe 5 is installed, throttle orifice 51 is arranged on throttle pipe 5, and throttle pipe 5 is saving on valve seat 1
The top of discharge orifice 51 is additionally provided with horn mouth 53, the big opening end of horn mouth 53 towards the direction of contact pin 6, the osculum end of horn mouth 53 with
Throttle orifice 51 connects.
In the present embodiment, valve seat 1 is equipped with jack 16 at corresponding throttle pipe 5, and 5 interference of throttle pipe is inserted in jack
16, the lower position of throttle pipe 5 has been wholely set annular lug 54, and the upper surface of annular lug 54 and valve seat 1 are inconsistent, valve seat
1 is equipped with the locating part 8 that can prevent throttle pipe 5 from loosening, and 8 close-fitting of locating part is plugged on valve seat 1, and locating part 8 can also pass through weldering
It connects or screw is screwed on valve seat 1, locating part 8 is equipped with the press block 81 inconsistent with 5 lower end surface of throttle pipe, on locating part 8
It is additionally provided with the water passage 82 for throttle orifice 51 Yu intake tunnel 11 to be connected.
In the present embodiment, the second through-hole 44 is opposite with dynamic iron core 21 and is coaxially disposed, and contact pin 6 is installed by needle stand 9
At the second through-hole 44, needle stand 9 is equipped with the pin hole 91 installed for contact pin 6, and 9 interference of needle stand is inserted in the second through-hole 44, needle
Seat 9 side on along its pin hole 91 length direction be equipped with water-carrying groove 92, water-carrying groove 92 be symmetrical arranged there are two, water-carrying groove 92 makes
Second through-hole 44 and 12 mutual conduction of exhalant canal.
In the present embodiment, needle stand 9 is equipped with groove in the side close to throttle orifice 51, is equipped with sponge 10 in groove.
Above embodiments, only one kind of the utility model preferably specific embodiment, those skilled in the art are in this reality
It is included in the protection scope of the utility model with the usual variations and alternatives carried out in new technique aspects.
Claims (10)
1. a kind of waste water solenoid valve for preventing blocked primary orifice waste water, including valve seat and electromagnetic control apparatus, set on the valve seat
There are intake tunnel and exhalant canal, diaphragm and bracket are installed on the valve seat, the bracket is equipped with connector, connector
It is equipped with card slot install for diaphragm, the end of connector is equipped with the installation end face for being caught in card slot for diaphragm, on diaphragm or bracket
Equipped with first through hole and the second through-hole, the aperture of the second through-hole is greater than the aperture of first through hole, and valve seat is equipped in the top of diaphragm
Upper water cavity and intake tunnel is connected in upper water cavity, first through hole, and electromagnetic control apparatus is equipped with dynamic iron core, and electromagnetic control apparatus is controllable
Braking iron core moves up and down, and the upper end of second through-hole is correspondingly arranged with dynamic iron core, the lower end of the second through-hole and exhalant canal
By cavity mutual conduction, the upper surface of cavity and diaphragm cooperate, and dynamic iron core cooperates with the second through-hole realizes leading for the second through-hole
Logical or closing, the bottom of the cavity are provided with throttle orifice, and throttle orifice is opposite with dynamic iron core and is coaxially disposed, and throttle orifice makes into water
Channel and exhalant canal conducting are arranged, and are provided with contact pin on the bracket, contact pin can be inserted in throttle orifice, between contact pin and throttle orifice
Gap cooperation, it is characterised in that: throttling passage, the lower end of contact pin are constituted between the lateral surface of the contact pin and the medial surface of throttle orifice
Position is the length of throttling passage to the distance between the upper end position of throttle orifice, and the length is between 0.3mm-10mm.
2. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 1, it is characterised in that: the peace
The upper end position of end face is filled to section face is constituted between the bottom surface of diaphragm, constitutes water flow between section face and the medial surface of cavity
Channel, the length in the section face is between 0.4mm-10mm.
3. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 2, it is characterised in that: the company
Connector is arranged with rubber ring at card slot, and rubber ring is inconsistent with the bottom surface of the bottom surface of card slot and diaphragm respectively, section face by
The lateral surface of rubber ring is constituted.
4. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 2, it is characterised in that: the film
The bottom surface of piece has extended downwardly diaphragm extension, the shape adaptation of diaphragm extension and card slot, the lower end surface of diaphragm extension
Inconsistent with the bottom surface of card slot, section face is made of the lateral surface of diaphragm extension.
5. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 2, it is characterised in that: the company
Connector is additionally provided with cylindrical surface below card slot, and the upper end on cylindrical surface and the bottom surface of diaphragm are inconsistent, the lower end on cylindrical surface with
Installation end face is connected, and section face is made of cylindrical surface.
6. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 1 or 2, it is characterised in that: institute
It states and throttle pipe is installed on valve seat, the throttle orifice is arranged on throttle pipe, and the throttle pipe is additionally provided with above throttle orifice
Horn mouth, bell-mouthed big opening end are connect towards the direction of contact pin, bell-mouthed osculum end with throttle orifice.
7. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 6, it is characterised in that: the valve
Seat is equipped with jack at corresponding throttle pipe, and throttle pipe interference is inserted in jack, and the lower position of the throttle pipe is equipped with annular
Convex block, the upper surface of annular lug and valve seat are inconsistent, and valve seat is equipped with the locating part that can prevent throttle pipe from loosening.
8. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 7, it is characterised in that: the limit
Position part is fixed on valve seat, and locating part is equipped with the press block inconsistent with throttle pipe lower end surface, is gone back on the locating part
Equipped with the water passage for throttle orifice and intake tunnel to be connected.
9. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 1 or 2, it is characterised in that: institute
It states the second through-hole to be arranged on bracket, the second through-hole is opposite with dynamic iron core and is coaxially disposed, and the contact pin is installed by needle stand
In the second through hole, needle stand is equipped with the pin hole installed for contact pin, and needle stand interference is inserted in the second through-hole, on the side of needle stand
Length direction along its pin hole is equipped with water-carrying groove, and water-carrying groove makes the second through-hole that setting be connected with exhalant canal.
10. a kind of waste water solenoid valve for preventing blocked primary orifice waste water according to claim 9, it is characterised in that: described
Needle stand is equipped with sponge in the side close to throttle orifice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169268.8U CN208595285U (en) | 2018-07-23 | 2018-07-23 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169268.8U CN208595285U (en) | 2018-07-23 | 2018-07-23 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
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| CN208595285U true CN208595285U (en) | 2019-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709004A (en) * | 2018-07-23 | 2018-10-26 | 温州大阳科技有限公司 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
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2018
- 2018-07-23 CN CN201821169268.8U patent/CN208595285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709004A (en) * | 2018-07-23 | 2018-10-26 | 温州大阳科技有限公司 | A kind of waste water solenoid valve preventing blocked primary orifice waste water |
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