CN208364852U - A kind of two-bit triplet solenoid valve - Google Patents
A kind of two-bit triplet solenoid valve Download PDFInfo
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- CN208364852U CN208364852U CN201821035998.9U CN201821035998U CN208364852U CN 208364852 U CN208364852 U CN 208364852U CN 201821035998 U CN201821035998 U CN 201821035998U CN 208364852 U CN208364852 U CN 208364852U
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Abstract
The utility model discloses a kind of two-bit triplet solenoid valves, belong to control valve for fluids field, its drip irrigation device includes valve body, the first cavity and the second cavity are provided in the valve body, upper opening and under shed are provided in first cavity, second cavity is connected with the under shed of first cavity, the valve body includes valve deck and valve seat, first cavity and the second cavity are arranged in the valve deck, the third cavity being connected to second cavity is provided in the valve seat, sliding, which is provided with, in the third cavity is connected with spool, magnetic drive component is provided on the outside of the third cavity in the valve seat, the Water-separating valve flap made of elastic material is fixed on the outside of the spool, the side of the valve seat towards the valve deck is provided with water proof backing plate, the junction of the water proof backing plate and valve deck, which is formed with, to be used for It is clamped the annular slot of the Water-separating valve flap outer ledge, the utility model has the advantages that good seal performance, high reliablity.
Description
Technical field
The utility model belongs to control valve for fluids field, and more specifically it is related to a kind of two-bit triplet solenoid valve.
Background technique
Two-bit triplet solenoid valve is the control unit in fluid delivery system, have cut-off, adjusting, water conservancy diversion, prevent countercurrently,
The functions such as pressure stabilizing, shunting or overflow.Three-way valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil
The flowing of the various types fluid such as product, liquid metal and radiating medium.
The working principle of solenoid valve is all the electromagnetic force that generates after being powered by electromagnetic coil come the fortune up and down of control valve core
It is dynamic, make valve opening or closing, thus in control piper medium on-off.Currently, occurring a kind of two-bit triplet electromagnetism in the market
Valve, as shown in Figure 1 comprising valve deck 101 and valve seat 102, the setting of valve deck 101 are provided on 102 upper end of valve seat, valve deck 101
One import and two outlets, are equipped with for the spool 103 of medium on-off in control piper in valve seat and for driving spool
103 mobile coil blocks 104.Under the action of coil block 104, spool 103 can move and close one of outlet,
To realize the commutation of medium.
But when spool entirety axial dimension is bigger, the case where being easy to appear Disalignment, it is serious can shadow
Sealing performance is rung, causes the impurity adulterated in medium to be deposited in around spool, influences the movement of spool, therefore there is also wait change
Into space.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of two-bit triplet solenoid valve, tool
There is the advantages of good seal performance, high reliablity.
To achieve the above object, the utility model provides following technical solution: a kind of two-bit triplet solenoid valve, including valve
Body is provided with the first cavity and the second cavity in the valve body, is provided with upper opening and under shed in first cavity, described
Second cavity is set to the lower section of first cavity and is connected with the under shed of first cavity, the outside of the valve body
It is provided with the import being connected to first cavity, the first outlet being connected to the upper opening and connects with second cavity
Logical second outlet, the valve body include valve deck and valve seat, and first cavity and the second cavity are arranged in the valve deck, institute
State the third cavity for being provided in valve seat and being connected to second cavity, first cavity, the second cavity and third cavity
Central axis is on same straight line, be provided in the third cavity sliding be connected with for control the upper opening and under open
The spool of mouth opening and closing, the interior magnetism being provided on the outside of the third cavity for driving the spool to move up and down of the valve seat
Driving assembly, is fixed with the Water-separating valve flap made of elastic material on the outside of the spool, and the valve seat is towards the valve deck
Side is provided with water proof backing plate, and the junction of the water proof backing plate and valve deck is formed with for being clamped the Water-separating valve flap outer side edges
The annular slot of edge.
By using above-mentioned technical proposal, under the action of magnetic drive component, if spool moves upwards, upper opening envelope
It closes, under shed conducting, medium enters through outlet, gone out by second outlet；And if magnetic core moves downward, under shed closing, on
Opening conducting, medium enter through outlet, are gone out by first outlet.In addition, the water proof backing plate between valve seat and valve deck, Neng Gouchu
Step increases the leakproofness between valve seat and valve deck；And utilize Water-separating valve flap that can improve valve in magnetic core in the case where not in
Leakproofness between seat and valve deck prevents the impurity adulterated in medium from flowing into third cavity, it is ensured that spool can operate normally；
And since Water-separating valve flap is made of elastic material, so that the sliding of spool will not generate shadow to Water-separating valve flap
It rings.To sum up, it can make the sealing performance between valve seat and valve deck not by spool processing, the shadow of assembling quality using Water-separating valve flap
It rings, while can be improved the reliability of spool.
The utility model is further arranged to: the spool includes valve rod and armature, and the valve rod is fixed on the armature
Radially inside is formed with the locating slot for being clamped the Water-separating valve flap for the junction of upper end, the valve rod and the armature.
By using above-mentioned technical proposal, the radially inner side of Water-separating valve flap is connected in locating slot, it can be ensured that spool
During sliding, Water-separating valve flap is still closely connect with spool, prevents medium to outward leakage.
The utility model is further arranged to: the valve rod is connected on the armature by interference riveting.
By using above-mentioned technical proposal, valve rod is connected on armature by the way of interference riveting, is conducive to spool
Batch production, and save the set-up time of valve rod and armature.
The utility model is further arranged to: the Water-separating valve flap is close to the valve rod and the one of the junction of the armature
Lateral edge radially opposite sides are extended with the abutting part of outwardly convex, and the inner wall two sides of the locating slot are provided with and the abutting part outer wall
The recessed portion abutted against.
By using above-mentioned technical proposal, under the mating reaction of abutting part and recessed portion, the radially inner side of Water-separating valve flap
It can be securely seated between in locating slot, it is ensured that the stability after Water-separating valve flap installation.
The utility model is further arranged to: the middle part of the Water-separating valve flap and being provided with towards water proof backing plate side
The deformation slot being recessed inwardly.
By using above-mentioned technical proposal, deformation slot makes Water-separating valve flap have certain deformation surplus, so as to subtract
The influence that Water-separating valve flap is generated when small valve core slides.
The utility model is further arranged to: the radial outside of the Water-separating valve flap is provided with annular flange, the annular
Flange is connected in the annular slot.
By using above-mentioned technical proposal, annular flange improves the close journey connected between Water-separating valve flap and annular slot
Degree, so that Water-separating valve flap is able to maintain stabilization.
The utility model is further arranged to: the bottom of the valve deck is provided with annular groove, the diameter of the Water-separating valve flap
It is provided with clamping portion outward, the clamping portion is connected between the annular groove and the upper surface of the valve seat.
By using above-mentioned technical proposal, the clamping portion on Water-separating valve flap is directly connected to the upper of annular groove and valve seat
Between end face, reduces the use of water proof backing plate, then save production material.
The utility model is further arranged to: the water proof backing plate and the spool one cast molding.
By using above-mentioned technical proposal, Water-separating valve flap and spool are integrally cast, and save the company of Water-separating valve flap and spool
The time is connect, so that only the outer ledge of Water-separating valve flap need to be connected in annular slot, the fixation of Water-separating valve flap can be realized.
The utility model is further arranged to: magnetic drive component described in magnetic drive component includes electromagnetic coil, quiet iron
Core and fixed frame, the electromagnetic coil are sheathed on the outside of the fixed frame, and the static iron core is set to the bottom of the third cavity
The upper end in portion, the static iron core is connect by spring with the lower end of the armature.
By using above-mentioned technical proposal, under original state, upper opening closing, under shed conducting, when electromagnetic coil is powered
When, static iron core generates magnetism, so that armature and valve rod move downward and compressed spring, to close under shed, conducting upper opening；
And when electromagnetic coil power loss, spring restores deformation, so that armature and valve rod move upwards and restore to original state.
The utility model is further arranged to: the armature is provided with the rank being recessed inwardly towards the side of the static iron core
Terraced slot is provided with rubber pad in the stepped groove, and the side of the rubber pad and the end face of the static iron core offset.
By using above-mentioned technical proposal, rubber pad can slow down the decrease speed of armature, reduce armature to static iron core
Impact force, to improve the service life of armature and static iron core；And rubber pad can be hidden using stepped groove, to avoid to spring
It is flexible have an impact, while making the installation of rubber pad more stable.
In conclusion the utility model has the advantage that
1, the leakproofness between valve seat and valve deck can be improved in magnetic core in the case where not in using Water-separating valve flap,
Prevent the impurity adulterated in medium from flowing into third cavity, it is ensured that spool can operate normally；And made of elastic material every
Water valve plate can be such that the sliding of spool does not have an impact to Water-separating valve flap；
2, by the way that the deformation slot being recessed inwardly is arranged at the middle part of Water-separating valve flap, so that Water-separating valve flap has certain deformation
Surplus, so as to reduce the influence generated when spool sliding to Water-separating valve flap；
3, the radially inner side of Water-separating valve flap is connected in locating slot, it can be ensured that spool is during sliding, water proof valve
Piece is still closely connect with spool, so as to be effectively prevented medium to outward leakage.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of two-bit triplet solenoid valve in the prior art；
Fig. 2 is schematic cross-sectional view when gasket is in first position in the present embodiment one；
Fig. 3 is schematic cross-sectional view when gasket is in the second position in the present embodiment one；
Fig. 4 is the broken section structural schematic diagram that the present embodiment one highlights Water-separating valve flap structure；
Fig. 5 is the perspective view of the explosion of the present embodiment one；
Fig. 6 is the schematic cross-sectional view of the present embodiment two；
Fig. 7 is the schematic cross-sectional view of the present embodiment three.
Description of symbols: 101, valve deck；102, valve seat；103, spool；104, coil block；1, valve body；2, spool；3,
First cavity；4, the second cavity；5, upper opening；6, under shed；7, import；8, first outlet；9, second outlet；10, magnetic to drive
Dynamic component；11, valve deck；12, valve seat；13, bonnet,；14, bottom flange；15, outer housing；16, outer iron plate；17, annular groove；18,
Sealing ring；19, gasket；20, valve rod；21, armature；22, T-slot；23, fixture block；24, Water-separating valve flap；25, water proof backing plate；26,
Annular slot；27, annular flange；28, locating slot；29, abutting part；30, recessed portion；31, deformation slot；32, electromagnetic coil；33,
Static iron core；34, fixed frame；35, third cavity；36, through-hole；37, spring；38, plug division；39, jack；40, stepped groove；41,
Rubber pad；42, annular groove；43, clamping portion.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment one, a kind of two-bit triplet solenoid valve are provided in valve body 1 as shown in Fig. 2, including valve body 1 and spool 2
First cavity 3 and the second cavity 4, upper opening 5 and under shed 6 are provided in the first cavity 3, and the second cavity 4 is arranged in the first chamber
The lower section of body 3 is simultaneously connected with the under shed 6 of the first cavity 3, and the outside of valve body 1 is provided with the import being connected to the first cavity 3
7, the first outlet 8 being connected to upper opening 5 and the second outlet 9 being connected to the second cavity 4；Spool 2 slides in the second cavity
4, it in the first cavity 3, is provided in valve body 1 for driving spool 2 closing upper opening 5, conducting under shed 6 and downward envelope upwards
The magnetic drive component 10 for closing under shed 6, upper opening 5 being connected.
As shown in Figure 2,3, valve body 1 includes valve deck 11 and valve seat 12, and valve deck 11 is mounted on the upper end of valve seat 12 by bolt.
Specifically, valve deck 11 includes bonnet, 13 and bottom flange 14, is bolted between bonnet, 13 and bottom flange 14, import 7
It is separately positioned on the two sides of bonnet, 13 with first outlet 8, second outlet 9 is arranged on bottom flange 14, and second outlet 9 and the
One outlet 8 is arranged in the same side, i.e., by dismountable bonnet, 13 and bottom flange 14, can increase or decrease the outlet of medium
Quantity；Valve seat 12 includes being built-in with the outer housing 15 of accommodating chamber and being connected in 15 upper end of outer housing and be used to close accommodating chamber
Outer iron plate 16, magnetic drive component 10 are arranged in accommodating chamber, and outer iron plate 16 has the function of closing magnetic drive component 10,
After magnetic drive component 10 generates magnetic field, the leakage of magnetic flux can be reduced.
As shown in figure 3, the upper surface of bottom flange 14 is provided with the annular groove 17 being recessed inwardly, it is provided in annular groove 17 close
Seal 18 can increase the leakproofness between bonnet, 13 and bottom flange 14 by sealing ring 18, prevent medium from flowing out valve body 1
Outside, the loss of medium is reduced.
As shown in Figure 3,4, spool 2 includes gasket 19, valve rod 20 and armature 21, and valve rod 20 is connected to by interference riveting
21 upper end of armature, gasket 19 are connected to 20 top of valve rod and are located in the first cavity 3, and gasket 19 has to be opened in closing upwards
Mouth 5, the first position that under shed 6 is connected and the second position closed under shed 6 downwards, upper opening 5 is connected.Wherein, it seals
The bottom of pad 19 is provided with T-slot 22, and the top of valve rod 20 is provided with the fixture block 23 that radially two sides extend, and fixture block 23 is embedded in T
In type groove 22, and by the cooperation of fixture block 23 and T-slot 22, can be realized it is detachable between gasket 19 and valve rod 20, and
Structure is simple, facilitates installation.
It is noted that as shown in Figure 3,4, the outside of spool 2 is fixed with Water-separating valve flap 24 made of elastic material,
The upper end of valve seat 12 is equipped with water proof backing plate 25 by bolt, and water proof backing plate 25 and the junction of bottom flange 14 are formed with for card
The annular slot 26 of 24 outer ledge of Water-separating valve flap is connect, and the radial outside of Water-separating valve flap 24 is provided with annular flange 27, annular
Flange 27 is connected in annular slot 26, by the cooperation of annular flange 27 and annular slot 26, is able to ascend Water-separating valve flap 24
The tightness degree connected between annular slot 26, so that Water-separating valve flap 24 is able to maintain stabilization.
In addition, radially inside is formed with the locating slot for being clamped Water-separating valve flap 24 for the junction of valve rod 20 and armature 21
28.Specifically, close to the side of valve rod 20 Yu the junction of armature 21, radially two sides are extended with outwardly convex to Water-separating valve flap 24
Abutting part 29, the inner wall two sides of locating slot 28 are provided with the recessed portion 30 abutted against with 29 outer wall of abutting part, pass through abutting part
29 can be securely seated between in locating slot 28, further increase with the cooperation of recessed portion 30, the radially inner side of Water-separating valve flap 24
Stability after the installation of Water-separating valve flap 24.
As shown in figure 4, in order to make Water-separating valve flap 24 that there is certain deformation surplus, to reduce when spool 2 slides to water proof
The influence that valve block 24 generates, at the middle part of Water-separating valve flap 24 and the side towards water proof backing plate 25 is provided with the deformation being recessed inwardly
Slot 31.
As shown in Figure 3,4, armature 21 is provided with the stepped groove 40 being recessed inwardly, stepped groove 40 towards the side of static iron core 33
It is inside provided with rubber pad 41, the side of rubber pad 41 and the end face of static iron core 33 offset, and can slow down armature by rubber pad 41
21 decrease speed reduces armature 21 to the impact force of static iron core 33, to improve the service life of armature 21 and static iron core 33；
And rubber pad 41 can be hidden using stepped groove 40, to avoid having an impact to the flexible of spring 37, while making rubber pad 41
Installation it is more stable.
As shown in figure 5, magnetic drive component 10 includes electromagnetic coil 32, static iron core 33 and fixed frame 34, fixed frame 34
In I-shaped, the bottom of fixed frame 34 is bonded with the bottom of outer housing 15 in section, electromagnetic coil 32 be set in fixed frame 34 outside
Side.In conjunction with shown in Fig. 2,3, fixed frame 34 is provided with third cavity 35, third cavity 35 and the first cavity 3 and along its axial direction
The central axis of two cavitys 4 is on same straight line, and through-hole 36 is provided on outer iron plate 16, and third cavity 35 passes through through-hole 36
It is connected to the second cavity 4, the bottom of third cavity 35 is arranged in static iron core 33, and the upper end of static iron core 33 passes through spring 37 and armature
21 lower end connection.Therefore, in the initial state, if the closing of upper opening 5, under shed 6 are connected, when electromagnetic coil 32 is powered,
Static iron core 33 generates magnetism, so that armature 21 moves downward and compressed spring 37, to close under shed 6, conducting upper opening 5；And
When 32 power loss of electromagnetic coil, spring 37 restores deformation, so that armature 21 is moved upwards and returned to original state.
Wherein, the bottom of static iron core 33 is connected with the plug division 38 for extending to 35 outside of third cavity, the bottom of outer housing 15
Portion is provided with the jack 39 being clamped for plug division 38, by the cooperation of plug division 38 and jack 39, fixed frame 34 can be made to keep
Stablize.
Working principle: under the action of magnetic drive component 10, if spool 2 moves upwards, the closing of upper opening 5, under shed 6
Conducting, medium enter through outlet, are gone out by second outlet 9；And if magnetic core moves downward, the closing of under shed 6, upper opening 5 leads
Logical, medium enters through outlet, is gone out by first outlet 8.Wherein, valve seat 12 and valve deck can tentatively be increased by water proof backing plate 25
Leakproofness between 11；And utilize Water-separating valve flap 24 that can improve valve seat 12 and valve deck 11 in magnetic core in the case where not in
Between leakproofness, prevent the impurity adulterated in medium flow into third cavity 35 in, it is ensured that spool 2 can operate normally, and by
It is made in Water-separating valve flap 24 of elastic material, so that the sliding of spool 2 will not have an impact Water-separating valve flap 24.To sum up,
Can make the sealing performance between valve seat 12 and valve deck 11 not using Water-separating valve flap 24 is influenced by the processing of spool 2, assembling quality,
It can be improved the reliability of spool 2 simultaneously.
Embodiment two, as shown in fig. 6, being a difference in that the bottom of bottom flange 14 is provided with annular groove with embodiment one
42, the radial outside of Water-separating valve flap 24 is provided with clamping portion 43, and clamping portion 43 is connected in the upper end of annular groove 42 Yu valve seat 12
Between face, by the way that the clamping portion 43 on Water-separating valve flap 24 is directly embedded between annular groove 42 and the upper surface of valve seat 12, side
Just it installs, and saves production material.
Embodiment three, as shown in fig. 7, being a difference in that Water-separating valve flap 24 is integrally cast into valve rod 20 with embodiment one
Type then saves the Connection Time of Water-separating valve flap 24 Yu spool 2, to need to only be connected to the outer ledge of Water-separating valve flap 24
In annular slot 26, the fixation of Water-separating valve flap 24 can be realized.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel design concept, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model
Within the scope of.
Claims (10)
1. a kind of two-bit triplet solenoid valve, including valve body (1), the valve body (1) is interior to be provided with the first cavity (3) and the second cavity
(4), it is provided with upper opening (5) and under shed (6) in first cavity (3), second cavity (4) is set to described first
The lower section of cavity (3) is simultaneously connected with the under shed (6) of first cavity (3), is provided on the outside of the valve body (1) and institute
The import (7) for stating the first cavity (3) connection, the first outlet (8) that is connected to the upper opening (5) and with second cavity
(4) second outlet (9) being connected to, it is characterised in that: the valve body (1) includes valve deck (11) and valve seat (12), first chamber
Body (3) and the second cavity (4) setting are provided with and second cavity (4) in the valve seat (12) in the valve deck (11)
The third cavity (35) of connection, the central axis of first cavity (3), the second cavity (4) and third cavity (35) are in same
Sliding is provided on one straight line, in the third cavity (35) is connected with open for controlling the upper opening (5) and under shed (6)
The spool (2) closed, the valve seat (12) is interior to be provided on the outside of the third cavity (35) for driving the spool (2) up and down
The magnetic drive component (10) of movement is fixed with the Water-separating valve flap made of elastic material (24), institute on the outside of the spool (2)
The side for stating valve seat (12) towards the valve deck (11) is provided with water proof backing plate (25), the water proof backing plate (25) and valve deck (11)
Junction be formed with the annular slot (26) for being clamped the Water-separating valve flap (24) outer ledge.
2. a kind of two-bit triplet solenoid valve according to claim 1, it is characterised in that: the spool (2) includes valve rod
(20) and armature (21), the valve rod (20) is fixed on the armature (21) upper end, the valve rod (20) and the armature (21)
Radially inside is formed with locating slot (28) for being clamped the Water-separating valve flap (24) for junction.
3. a kind of two-bit triplet solenoid valve according to claim 2, it is characterised in that: the valve rod (20) passes through interference riveting
Pressure is connected on the armature (21).
4. a kind of two-bit triplet solenoid valve according to claim 2 or 3, it is characterised in that: the Water-separating valve flap (24) is leaned on
Radially two sides are extended with the abutting part of outwardly convex for the side of the junction of the nearly valve rod (20) and the armature (21)
(29), the inner wall two sides of the locating slot (28) are provided with the recessed portion (30) abutted against with the abutting part (29) outer wall.
5. a kind of two-bit triplet solenoid valve according to claim 1, it is characterised in that: the middle part of the Water-separating valve flap (24)
And water proof backing plate (25) side is provided with the deformation slot (31) being recessed inwardly.
6. a kind of two-bit triplet solenoid valve according to claim 1, it is characterised in that: the radial direction of the Water-separating valve flap (24)
Outside is provided with annular flange (27), and the annular flange (27) is connected in the annular slot (26).
7. a kind of two-bit triplet solenoid valve according to claim 1, it is characterised in that: the bottom of the valve deck (11) is arranged
Have annular groove (42), the radial outside of the Water-separating valve flap (24) is provided with clamping portion (43), clamping portion (43) clamping
Between the annular groove (42) and the upper surface of the valve seat (12).
8. a kind of two-bit triplet solenoid valve according to claim 1, it is characterised in that: the Water-separating valve flap (24) with it is described
Spool (2) one cast molding.
9. a kind of two-bit triplet solenoid valve according to claim 2, it is characterised in that: magnetic drive component (10) described magnetic
Property driving assembly (10) includes electromagnetic coil (32), static iron core (33) and fixed frame (34), and the electromagnetic coil (32) is sheathed on
On the outside of the fixed frame (34), the static iron core (33) is set to the bottom of the third cavity (35), the static iron core (33)
Upper end connect with the lower end of the armature (21) by spring (37).
10. a kind of two-bit triplet solenoid valve according to claim 9, it is characterised in that: the armature (21) is towards described
The side of static iron core (33) is provided with the stepped groove (40) being recessed inwardly, and is provided with rubber pad (41) in the stepped groove (40),
The side of the rubber pad (41) and the end face of the static iron core (33) offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035998.9U CN208364852U (en) | 2018-07-02 | 2018-07-02 | A kind of two-bit triplet solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035998.9U CN208364852U (en) | 2018-07-02 | 2018-07-02 | A kind of two-bit triplet solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364852U true CN208364852U (en) | 2019-01-11 |
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ID=65032963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821035998.9U Active CN208364852U (en) | 2018-07-02 | 2018-07-02 | A kind of two-bit triplet solenoid valve |
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| Country | Link |
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| CN (1) | CN208364852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626434A (en) * | 2018-07-02 | 2018-10-09 | 厦门科际精密器材有限公司 | A kind of two-bit triplet solenoid valve |
| CN114508628A (en) * | 2022-03-18 | 2022-05-17 | 陕西青云智通流体控制设备有限公司 | Diaphragm type electromagnetic valve and biochemical analyzer |
-
2018
- 2018-07-02 CN CN201821035998.9U patent/CN208364852U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626434A (en) * | 2018-07-02 | 2018-10-09 | 厦门科际精密器材有限公司 | A kind of two-bit triplet solenoid valve |
| CN114508628A (en) * | 2022-03-18 | 2022-05-17 | 陕西青云智通流体控制设备有限公司 | Diaphragm type electromagnetic valve and biochemical analyzer |
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