CN206159549U - Starter gate valve is stabilized to automatically controlled formula - Google Patents
Starter gate valve is stabilized to automatically controlled formula Download PDFInfo
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- CN206159549U CN206159549U CN201621098403.5U CN201621098403U CN206159549U CN 206159549 U CN206159549 U CN 206159549U CN 201621098403 U CN201621098403 U CN 201621098403U CN 206159549 U CN206159549 U CN 206159549U
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Abstract
The utility model discloses a starter gate valve is stabilized to automatically controlled formula, including valve body, valve gap, disk seat, first case subassembly, second case subassembly and regulating valve component, the valve gap sets up respectively in the both ends of valve body with the disk seat, is formed with first cavity and second cavity between valve body and the valve gap, is formed with the third cavity between valve body and the disk seat, first case subassembly sets up in first cavity, and second case subassembly sets up in the second cavity, be provided with first guide bracket on the valve gap, be formed with the fourth cavity between first guide bracket and the valve gap, first guide bracket be equipped with with the communicating air guide hole of fourth cavity, the cooperation of first guide bracket and valve gap is formed with the control air flue, is provided with the electromagnetism elder generation top guide that is used for controlling air guide hole and control air flue and switches on or cut off on the first guide bracket. The utility model has the advantages of simple and reasonable structure, simple to operate, action sensitivity is higher, and sealing performance is stronger, and life is longer, and the working property is reliable and stable.
Description
Technical field
This utility model is related to pneumatic element technical field, the stable trigger valve of more particularly to a kind of electric-controlled type.
Background technology
Stable trigger valve is a kind of pneumatic element for pneumatic system safeguard protection, in the initial start stage of pneumatic system,
Operating pressure is not sufficiently stable, and at this moment it only allows a small amount of compressed air to flow through, when outlet pressure reaches the half of inlet pressure,
The valve is just fully opened, and reaches its maximum stream flow.But, at present stable trigger valve common on the market is not conformed to due to structure setting
Reason, causes generally the presence of following defect in real work：First, mounting structure arranges complex, causes to install more not
Just, efficiency of assembling is reduced；Second, main valve plug control inconvenience causes its action sensitivity relatively low；3rd, inside valve
Needle is adjusted using hard sealing, this sealing means are not only higher to adjusting the requirement on machining accuracy of needle, and using one section
Damaging also easily occurs in sealing surface after time, causes to reduce sealing property, shortens the service life of valve.Therefore be necessary to existing
The structure for having stable start valve is improved, to meet the actually used demand of user.
Utility model content
The purpose of this utility model is the defect and deficiency for prior art, there is provided a kind of electric-controlled type stably starts
Valve, its is simple and reasonable, easy for installation, and action sensitivity is higher, and sealing property is stronger, and service life is longer, service behaviour
It is reliable and stable.
For achieving the above object, this utility model is employed the following technical solutions：
A kind of stable trigger valve of electric-controlled type described in the utility model, including valve body, valve gap, valve seat, the first core assembly,
Second core assembly and valve assembly, the valve gap is respectively arranged at the two ends of the valve body, the valve body with the valve seat
First chamber and second chamber are formed between the valve gap, the 3rd chamber is formed between the valve body and the valve seat；
First core assembly is arranged in the first chamber, and second core assembly is arranged in the second chamber；
The valve body is respectively equipped with the outlet that the air inlet connected with the first chamber is connected with the second chamber
Mouthful, for connecting the first chamber and the first valve port of the 3rd chamber, for connecting the second chamber with described the
Second valve port of three chambers, the valve seat is provided with the air vent with the 3rd chamber, the air vent and described first
Valve port is correspondingly arranged；
First core assembly include piston, the first valve rod and the first spring, the top of first valve rod with it is described
Piston is fixedly connected, and the bottom of first valve rod is through first valve port and is inserted in the 3rd chamber, and described the
The bottom of one valve rod is provided with the first valve element, and first spring is supported and is located between the piston and the valve body, the piston
There is movement tendency upwards under the elastic force effect of first spring；
First guide bracket is provided with the valve gap, the 4th chamber is formed between the first guide bracket and the valve gap, described
Four chambers are connected by leader channel with the air inlet, and the first guide bracket is provided with the gas port communicated with the 4th chamber,
The first guide bracket and the valve gap have cooperatively formed control air flue, the control air flue communicate with the first chamber and with it is described
Piston is correspondingly arranged, and the electricity for controlling the gas port and the control air flue on or off is provided with the first guide bracket
Magnetic pilot head；
Second core assembly includes bonnet, the second valve rod and second spring, and the bonnet is fixed at described the
Two within the chambers, the second spring is supported and is located between the bonnet and second valve rod, and second valve rod is described second
Elastic force effect lower closure second valve port of spring；
The valve assembly includes taking shape in the pedestal on the valve seat, and the side wall of the pedestal is provided with and the described 3rd
The valve import of chamber, is provided with the valve outlet port connected with the second chamber at the top of the pedestal, be provided with the pedestal
Needle is adjusted, the top of the regulation needle has the conical nose with the valve outlet port corresponding matching, the conical nose
Outside is provided with sulfuration colloid.
Further, the electromagnetic pilot head includes sleeve pipe, dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe
End be fixedly connected with the first guide bracket by pressing plate, be movably set with described sleeve pipe the dynamic iron core, be fixedly installed described in
Static iron core, is provided with dynamic iron core spring between the dynamic iron core and described sleeve pipe, the coil block is arranged at described sleeve pipe
Outer wall；The upper surface of the first guide bracket is provided with boss, and boss described in the gas port insertion, the bottom of the dynamic iron core is arranged
Have and the first chock plug for coordinating is sealed with the boss；The static iron core is axially disposed exhaust passage, the top of the dynamic iron core
End is provided with the second chock plug coordinated with passageway seals.
Further, it is horizontally arranged with for the manual of dynamic iron core action described in manual actuation on the side wall of the first guide bracket
Bar.
Further, the valve body is additionally provided with the 3rd valve port for connecting the gas outlet and the 3rd chamber, institute
State the 3rd within the chamber and be provided with unidirectional pressure release valve module, the unidirectional pressure release valve module includes pressure releasing valve core and pressure release spring, institute
State pressure releasing valve core to coordinate with the 3rd sealing valve port, the pressure release spring support located at the pressure releasing valve core and the valve seat it
Between.
Further, the outside cladding rubber sleeve of first valve element.
Further, the outer wall of the piston is embedded with the first seal coordinated with the valve seal.
Further, the middle part outer wall of second valve rod is radially convexly equipped with radial protrusion, embedding on the radial protrusion
It is provided with the second seal coordinated with the Bonnet seal.
Further, the bottom of second valve rod is provided with the sealing gasket coordinated with second sealing valve port.
The beneficial effects of the utility model are：The stable trigger valve of electric-controlled type described in the utility model, by valve body with
First chamber and second chamber are equipped between valve gap, the 3rd chamber is equipped between valve body and valve seat, by the first valve
Core assembly is arranged in first chamber, and the second core assembly is arranged in second chamber, and mounting structure arranges compact, simple, makes
Obtain this utility model and install more convenient, be conducive to improving efficiency of assembling；By arranging first guide bracket, first guide bracket and valve on valve gap
The 4th chamber is formed between lid, the 4th chamber is connected by leader channel with air inlet, is arranged and the 4th chamber on first guide bracket
The gas port for communicating, first guide bracket is equipped with the control air flue for being communicated to first chamber, control air flue and the first valve element with valve gap
The piston of component is correspondingly arranged, and is formerly provided for controlling the electromagnetism elder generation of gas port and control air flue on or off on guide bracket
Top guide, during work, just can control the operating state of piston, so that the first core assembly control by controlling electromagnetic pilot head
System is more convenient, also effectively increases the action sensitivity of the first core assembly so that stable and reliable working performance；In regulating valve
The top of pin arranges conical nose, and arranges sulfuration colloid in the outside of conical nose, by the knot using this soft seal
Structure, can not only effectively improve plugging effect of the regulating valve for pedestal valve outlet port so that this utility model sealing property is preferable,
And it is not easy to abrasion occur in use, so as to effectively extend service life of the present utility model.
Description of the drawings
Fig. 1 is entirety sectional view of the present utility model；
Fig. 2 is the mplifying structure schematic diagram in Fig. 1 at S；
Fig. 3 is the structural representation of this utility model valve seat；
Fig. 4 is the sectional view of this utility model valve assembly.
In Fig. 1 to Fig. 4：
1st, valve body；11st, air inlet；12nd, gas outlet；13rd, the first valve port；14th, the second valve port；15th, the 3rd valve port；2nd, valve
Lid；3rd, valve seat；31st, air vent；41st, piston；42nd, the first valve rod；43rd, the first spring；44th, the first valve element；45th, rubber sleeve；46、
First seal；5th, first guide bracket；51st, gas port；52nd, air flue is controlled；53rd, boss；54th, hand lever；61st, sleeve pipe；62nd, ferrum is moved
Core；63rd, static iron core；631st, exhaust passage；64th, coil block；65th, pressing plate；66th, dynamic iron core spring；67th, the first chock plug；68th,
Two chock plugs；71st, bonnet；72nd, the second valve rod；721st, radial protrusion；73rd, second spring；74th, sealing gasket；75th, second seal；
81st, pedestal；811st, valve import；812nd, valve outlet port；82nd, needle is adjusted；821st, conical nose；83rd, colloid is vulcanized；91st, relief valve
Core；92nd, pressure release spring；A, first chamber；B, second chamber；C, the 3rd chamber；D, the 4th chamber.
Specific embodiment
This utility model is further described below in conjunction with the accompanying drawings.
A kind of stable trigger valve of electric-controlled type as shown in Figures 1 to 4, including valve body 1, valve gap 2, valve seat 3, the first valve element group
Part, the second core assembly and valve assembly, valve gap 2 and valve seat 3 are respectively arranged at the two ends of valve body 1, valve body 1 and valve gap 2 it
Between be formed with first chamber A and second chamber B, the 3rd cavity C is formed between valve body 1 and valve seat 3.First core assembly is arranged
In first chamber A, the second core assembly is arranged in second chamber B so that this utility model structure setting is compact, reasonable,
Simply, install more convenient, be conducive to improving efficiency of assembling.
Valve body 1 is respectively equipped with the gas outlet 12 that the air inlet 11 connected with first chamber A connects with second chamber B, is used for
First valve port 13, second valve port for connect second chamber B and threeth cavity C of connection first chamber A with the 3rd cavity C
14, valve seat 3 is provided with the air vent 31 connected with the 3rd cavity C, and air vent 31 is correspondingly arranged with the first valve port 13.
First core assembly includes piston 41, the first valve rod 42 and the first spring 43, the top of the first valve rod 42 and piston
41 are fixedly connected, and the bottom of the first valve rod 42 passes through the first valve port 13 and is inserted in the 3rd cavity C, the bottom of the first valve rod 42
The first valve element 44 is provided with, in order that the sealing effectiveness of the first valve element 44 is more preferably, the outside cladding rubber sleeve of the first valve element 44
45, the first spring 43 is supported and is located between piston 41 and valve body 1, and piston 41 has upwards under the elastic force effect of the first spring 43
Movement tendency.The outer wall of piston 41 is embedded with and the first seal 46 for coordinating is sealed with valve body 1, effectively increases this utility model
Internal air-tightness.
First guide bracket 5 is provided with valve gap 2, the 4th chamber D is formed between first guide bracket 5 and valve gap 2, the 4th chamber D passes through
Leader channel (not shown) is connected with air inlet 11, and first guide bracket 5 is provided with the gas port 51 communicated with the 4th chamber D, guide
Seat 5 has cooperatively formed control air flue 52 with valve gap 2, and control air flue 52 is communicated with first chamber A and is correspondingly arranged with piston 41, first
The electromagnetic pilot head for controlling gas port 51 and the control on or off of air flue 52 is provided with guide bracket 5.
Specifically, electromagnetic pilot head includes sleeve pipe 61, dynamic iron core 62, static iron core 63 and coil block 64, sleeve pipe 61
Bottom is fixedly connected by pressing plate 65 with first guide bracket 5, is movably set with dynamic iron core 62, is fixedly installed static iron core in sleeve pipe 61
63, dynamic iron core spring 66 is provided between dynamic iron core 62 and sleeve pipe 61, coil block 64 is arranged at the outer wall of sleeve pipe 61；First guide bracket
5 upper surface is provided with boss 53, and the insertion boss 53 of gas port 51, the bottom of dynamic iron core 62 is provided with and coordinates with the sealing of boss 53
The first chock plug 67；The axially disposed top for having exhaust passage 631, dynamic iron core 62 of static iron core 63 is provided with and exhaust passage
The second chock plug 68 that 631 sealings coordinate.
Overhauled for the ease of this utility model and safeguarded, be horizontally arranged with the side wall of first guide bracket 5 for drive manually
The hand lever 54 of the action of dynamic dynamic iron core 62, when hand lever 54 is stirred, the inner of hand lever 54 promotes to be moved in dynamic iron core 62, and then
Gas port 51 is set to turn on control air flue 52.
By using above-mentioned electromagnetic control structure, during work, the action of piston 41 just being controlled using electromagnetic pilot head
State, so that the control of the first core assembly is more convenient, also effectively increases the action sensitivity of the first core assembly, makes
Obtain stable and reliable working performance.
Second core assembly includes bonnet 71, the second valve rod 72 and second spring 73, and bonnet 71 is fixed at the second chamber
In the B of room, second spring 73 is supported between the valve rod 72 of bonnet 71 and second, and the second valve rod 72 is acted in the elastic force of second spring 73
The second valve port 14 of lower closure, in order to ensure the sealing blocking effect to the second valve port 14, the bottom of the second valve rod 72 be provided with
The sealing gasket 74 that the sealing of second valve port 14 coordinates.The middle part outer wall of the second valve rod 72 is radially convexly equipped with radial protrusion 721, radially
It is embedded with raised 721 and the second seal 75 for coordinating is sealed with bonnet 71.By arranging radial protrusion 721, can effectively increase
The compression area of big second valve rod 72, when the pressure rise of gas outlet 12, the compressed air of gas outlet 12 is reacted on radially
Raised 721, so as to the second valve rod 72 just can be forced to move up, improve the action sensitivity of the second core assembly.Second
Sealing member 75 is also beneficial to improve the air-tightness inside this utility model.
Valve assembly includes taking shape in the pedestal 81 on valve seat 3, and the side wall of pedestal 81 is provided with what is connected with the 3rd cavity C
Valve import 811, the top of pedestal 81 is provided with the valve outlet port 812 connected with second chamber B, pedestal 81 and is provided with regulation needle 82,
The top of needle 82 is adjusted with the conical nose 821 with the corresponding matching of valve outlet port 812, the outside of conical nose 821 is provided with
Sulfuration colloid 83.By the structure using this soft seal, regulation needle 82 can not only be effectively improved the valve of pedestal 81 is gone out
The plugging effect of mouth 812 so that this utility model sealing property preferably, and is not easy to abrasion occur in use, from
And effectively extend service life of the present utility model.
Valve body 1 is additionally provided with the 3rd valve port 15 for connecting the cavity C of gas outlet 12 and the 3rd, is provided with the 3rd cavity C
Unidirectional pressure release valve module, unidirectional pressure release valve module includes pressure releasing valve core 91 and pressure release spring 92, the valve port of pressure releasing valve core 91 and the 3rd
15 sealings coordinate, and pressure release spring 92 is supported and is located between pressure releasing valve core 91 and valve seat 3.
Operation principle of the present utility model is：
Under original state, electromagnetic pilot head is not powered on, and the first valve element 44 blocks the first valve in the presence of the first spring 43
Mouthfuls 13, now the gases at high pressure part in air inlet 11 can enter and be awaited orders in first chamber A, another part then Jing leader channels
Into in the 4th chamber D；
When the coil block 64 of electromagnetic pilot head is powered, dynamic iron core 62 drives the first chock plug 67 under electromagnetic attraction effect
Upper shifting, gas port 51 is switched on, and successively Jing gas ports 51 and control air flue 52 enter the first chamber to the compressed gas in the 4th chamber D
The tip position of room A, forces piston 41 to drive the first valve rod 42 to move down under gas pressure, and the first valve element 44 is with the first valve rod 42
Synchronously move down and make that the first valve port 13 is turned on, air vent 31 is closed, rapid Jing first chambers A of the compressed gas in air inlet 11 and
First valve port 13 is entered in the 3rd cavity C；
Adjust needle 82 not completely block valve outlet port 812 when, in the 3rd cavity C put aside compressed gas have part according to
The valve import 811 of secondary adjusted valve module, valve outlet port 812 and second chamber B flow to gas outlet 12, is that gas is used in the side of gas outlet 12
Equipment is supplied；Under the operating mode that gas outlet 12 has gas to flow out, the compressed gas of the side of gas outlet 12 can react on the second valve rod
72, when the side of gas outlet 12 pressure rise to setting value (for example, it is assumed that admission pressure is 0.6MPa, when the pressure of the side of gas outlet 12
Power reaches 0.3MPa) when, the second valve rod 72 understands shifting in the presence of the pressure of gas outlet 12, promotes the second valve port 14 to be switched on,
Direct the second valve ports of Jing 14 of compressed gas in 3rd cavity C flow to gas outlet 12, and now this utility model reaches maximum output
Flow；It should be noted that in this section of course of work, because pressure is higher than the pressure of the side of gas outlet 12 in the 3rd cavity C, because
This unidirectional pressure release valve module is closed all the time, i.e., the 3rd valve port 15 will not be switched on；
When 64 power-off again of coil block, it is cut off again between gas port 51 and control air flue 52, first chamber A top
The rapid Jing control air flues 52 of air of portion (i.e. the top of piston 41) position and exhaust passage 631 are discharged so that piston 41 is first
The effect of spring 43 can drive the first valve rod 42 to reset, and the first valve element 44 reseals the first valve port 13 so that at air inlet 11
Gas cannot be introduced in the 3rd cavity C, at the same time, on the one hand, due to air vent 31 it is switched on, the gas of the 3rd cavity C
Rapid Jing air vents 31 are discharged, and the pressure of the side of gas outlet 12 is gradually lowered so that the second valve rod 72 is acted in second spring 73
Under move down reset again, the second valve port 14 is closed, on the other hand, due to gas outlet 12 pressure higher than the 3rd cavity C pressure
Power, the air pressure of the side of gas outlet 12 can promote pressure releasing valve core 91 to move down, and the 3rd valve port 15 is opened, the Jing successively of the residual voltage at gas outlet 12
3rd valve port 15, the 3rd cavity C and air vent 31 are expelled to rapidly air.
The above is only better embodiment of the present utility model, therefore all according to described in this utility model patent claim
Construction, the equivalence changes done of feature and principle or modification, be included in this utility model patent claim.
Claims (8)
1. a kind of electric-controlled type stablizes trigger valve, including valve body, valve gap, valve seat, the first core assembly, the second core assembly and regulation
Valve module, the valve gap is respectively arranged at the two ends of the valve body with the valve seat, it is characterised in that：The valve body and the valve
First chamber and second chamber are formed between lid, the 3rd chamber is formed between the valve body and the valve seat；Described first
Core assembly is arranged in the first chamber, and second core assembly is arranged in the second chamber；
The valve body is respectively equipped with gas outlet, the use that the air inlet connected with the first chamber is connected with the second chamber
In connecting the first valve port of the first chamber with the 3rd chamber, for connecting the second chamber with the 3rd chamber
The second valve port, the valve seat is provided with the air vent with the 3rd chamber, the air vent and first valve port pair
Should arrange；
First core assembly includes piston, the first valve rod and the first spring, top and the piston of first valve rod
It is fixedly connected, the bottom of first valve rod passes through first valve port and is inserted in the 3rd chamber, first valve
The bottom of bar is provided with the first valve element, and first spring is supported and is located between the piston and the valve body, and the piston is in institute
State the lower movement tendency having upwards of elastic force effect of the first spring；
First guide bracket is provided with the valve gap, the 4th chamber, the 4th chamber are formed between the first guide bracket and the valve gap
Room is connected by leader channel with the air inlet, and the first guide bracket is provided with the gas port communicated with the 4th chamber, described
First guide bracket and the valve gap have cooperatively formed control air flue, the control air flue communicate with the first chamber and with the piston
It is correspondingly arranged, the electromagnetism elder generation for controlling the gas port and the control air flue on or off is provided with the first guide bracket
Top guide；
Second core assembly includes bonnet, the second valve rod and second spring, and the bonnet is fixed at second chamber
Interior, the second spring is supported and is located between the bonnet and second valve rod, and second valve rod is in the second spring
The lower closure of elastic force effect second valve port；
The valve assembly includes taking shape in the pedestal on the valve seat, and the side wall of the pedestal is provided with and the 3rd chamber
The valve import of connection, is provided with the valve outlet port connected with the second chamber at the top of the pedestal, regulation is provided with the pedestal
Needle, the top of the regulation needle has the conical nose with the valve outlet port corresponding matching, the outside of the conical nose
It is provided with sulfuration colloid.
2. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The electromagnetic pilot head include sleeve pipe,
Dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe is fixedly connected by pressing plate with the first guide bracket, in described sleeve pipe
It is movably set with the dynamic iron core, is fixedly installed the static iron core, dynamic ferrum is provided between the dynamic iron core and described sleeve pipe
Core spring, the coil block is arranged at the outer wall of described sleeve pipe；The upper surface of the first guide bracket is provided with boss, the inducing QI
Boss described in the insertion of hole, the bottom of the dynamic iron core is provided with and the first chock plug for coordinating is sealed with the boss；The static iron core
Axially disposed to have exhaust passage, the top of the dynamic iron core is provided with the second chock plug coordinated with passageway seals.
3. electric-controlled type according to claim 2 stablizes trigger valve, it is characterised in that：Laterally set on the side wall of the first guide bracket
It is equipped with the hand lever for dynamic iron core action described in manual actuation.
4. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The valve body is additionally provided with for connecting
The 3rd valve port of gas outlet and the 3rd chamber is stated, the 3rd within the chamber is provided with unidirectional pressure release valve module, described unidirectional
Pressure release valve module includes pressure releasing valve core and pressure release spring, and the pressure releasing valve core coordinates with the 3rd sealing valve port, the pressure release
Spring is supported and is located between the pressure releasing valve core and the valve seat.
5. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The outside of first valve element is coated with
Rubber sleeve.
6. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The outer wall of the piston is embedded with and institute
State the first seal of valve seal cooperation.
7. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The middle part outer wall edge of second valve rod
Radially radial protrusion is convexly equipped with, the second seal coordinated with the Bonnet seal is embedded with the radial protrusion.
8. electric-controlled type according to claim 1 stablizes trigger valve, it is characterised in that：The bottom of second valve rod is provided with
The sealing gasket coordinated with second sealing valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098403.5U CN206159549U (en) | 2016-09-30 | 2016-09-30 | Starter gate valve is stabilized to automatically controlled formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098403.5U CN206159549U (en) | 2016-09-30 | 2016-09-30 | Starter gate valve is stabilized to automatically controlled formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159549U true CN206159549U (en) | 2017-05-10 |
Family
ID=58653554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621098403.5U Active CN206159549U (en) | 2016-09-30 | 2016-09-30 | Starter gate valve is stabilized to automatically controlled formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758063A (en) * | 2018-07-31 | 2018-11-06 | 宁波索诺工业自控设备有限公司 | A kind of slow-start solenoid valve |
| CN113958755A (en) * | 2021-10-09 | 2022-01-21 | 合肥通用机械研究院有限公司 | Electromagnetic blow-down valve |
-
2016
- 2016-09-30 CN CN201621098403.5U patent/CN206159549U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758063A (en) * | 2018-07-31 | 2018-11-06 | 宁波索诺工业自控设备有限公司 | A kind of slow-start solenoid valve |
| CN113958755A (en) * | 2021-10-09 | 2022-01-21 | 合肥通用机械研究院有限公司 | Electromagnetic blow-down valve |
| CN113958755B (en) * | 2021-10-09 | 2023-11-24 | 合肥通用机械研究院有限公司 | Electromagnetic blow-down valve |
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