CN201973247U - Endless belt type high-voltage explosion prevention electromagnetic valve - Google Patents
Endless belt type high-voltage explosion prevention electromagnetic valve Download PDFInfo
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- CN201973247U CN201973247U CN2011201292738U CN201120129273U CN201973247U CN 201973247 U CN201973247 U CN 201973247U CN 2011201292738 U CN2011201292738 U CN 2011201292738U CN 201120129273 U CN201120129273 U CN 201120129273U CN 201973247 U CN201973247 U CN 201973247U
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Abstract
The utility model discloses an endless belt type high-voltage explosion prevention electromagnetic valve which comprises a valve body, a connecting body and a valve cover arranged on the valve body. A gas inlet channel and a gas outlet channel are arranged in the valve body; a main valve core is arranged in the valve cover; a main spring is arranged in the main valve core; a main valve core upper cavity is formed between the upper part of the main valve core and the valve cover; a main valve cover lower cavity is formed between the lower part of the main valve core and the valve body; the gas inlet channel is communicated with the main valve cover lower cavity; the valve cover is provided with a balancing hole communicating the gas inlet channel with the main valve core upper cavity; and the valve cover is provided with an unloading hole section A communicated with the gas outlet channel. With the adoption of the endless belt type high-voltage explosion prevention electromagnetic valve, the bottom of the main valve core is uniformly stressed, and local erosion to the main valve core because of overlarge momentary flow is avoided, the up-and-down motion of the main valve core is hindered, and even an electromagnetic valve momentary start and stop device is influenced and can not be normally started because the side is stressed.
Description
Technical field
The utility model relates to a kind of solenoid valve, particularly relates to a kind of endless belt formula high-voltage explosion-proof solenoid valve.
Background technique
Along with China's natural gas is widelyd popularize application, driven the quick growth of the pipeline conveying control unit market demand, the high-voltage explosion-proof solenoid valve carries control unit to be used widely as important pipeline, but, existing solenoid valve mostly be the high in and low out structure greatly, this structure influence stability and life-span of having reduced main valve plug of main valve plug work, and main valve plug discontinuity of the prior art, air-flow causes very big erosion and reduces the phenomenon in the life-span of main valve plug main valve plug, seriously can have influence on the sealability and the Security of solenoid valve.A kind of new structure high-voltage explosion-proof of market in urgent need solenoid valve satisfies the demand of rock gas extensive use.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of endless belt formula high-voltage explosion-proof solenoid valve is provided.This solenoid valve makes main valve plug bottom evenly stressed, avoided because of moment flow excessive, main valve plug caused local erosion and because of the side is stressed main valve plug moved up and down be obstructed, even have influence on the difficult problem that the instantaneous start-stop device of solenoid valve can't normally be opened.
For achieving the above object, the technical solution adopted in the utility model is: endless belt formula high-voltage explosion-proof solenoid valve, it is characterized in that: comprise valve body, connecting body and the valve gap that is arranged on the valve body, be provided with gas-entered passageway and outlet passageway in the described valve body, be provided with main valve plug in the described valve gap, be provided with main spring in the described main valve plug, form the main valve plug epicoele between described main valve plug top and the valve gap, form the main valve plug cavity of resorption between described main valve plug bottom and the valve body, described gas-entered passageway communicates with the main valve plug cavity of resorption, described valve gap is provided with the equalizing orifice that gas-entered passageway is communicated with the main valve plug epicoele, described valve gap is provided with the unloading hole A section that is communicated with outlet passageway, be horizontally disposed with the unloading hole B section that is " Z " font in the described valve gap, one end of described unloading hole B section is connected with the upper end of unloading hole A section, the other end of described unloading hole B section is connected with connecting body, described connecting body comprises unloading hole C section and unloading hole D section, one end of described unloading hole C section is connected with unloading hole B section, on the described connecting body and the other end that is positioned at unloading hole C section be provided with endless belt, one end of described unloading hole D section is communicated with the main valve plug epicoele by the unloading hole E section that is arranged on the valve gap, the other end of described unloading hole D section is communicated with endless belt, the arranged outside of described connecting body has two Electrical heads start-stop devices, the described pair of instantaneous start-stop device of Electrical heads comprises the auxiliary valve core Electrical heads and by fittings body and the vertically arranged lock core Electrical heads of auxiliary valve core Electrical heads, described auxiliary valve core Electrical heads comprises the auxiliary valve core sleeve, in the described auxiliary valve core sleeve auxiliary valve core guide pin bushing is set, auxiliary valve core Electrical heads coil and auxiliary valve core, described auxiliary valve core guide pin bushing one end is fixed on the auxiliary valve core sleeve, the other end of auxiliary valve core guide pin bushing is connected with auxiliary valve core by first spring that is arranged on the auxiliary valve core guide pin bushing, described secondary valve Electrical heads coil is arranged on around the auxiliary valve core guide pin bushing, described auxiliary valve core extend in the auxiliary valve core guide pin bushing, described auxiliary valve core is provided with sealing block away from an end of auxiliary valve core guide pin bushing, described sealing block is connected with auxiliary valve core by second spring, and described sealing block is corresponding with the end of unloading hole C section; Described lock core Electrical heads comprises the lock core sleeve, lock core Electrical heads coil, lock core contiguous block and lock core are set in the described lock core sleeve, described lock core contiguous block one end is fixed on the lock core sleeve, the other end of lock core contiguous block is connected with lock core by the 3rd spring, described lock core Electrical heads coil is arranged on around the lock core contiguous block, described lock core extend in the lock core contiguous block, and described auxiliary valve core end is provided with the circular groove that the lock core end can enter.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve, the aperture of described unloading hole A section, unloading hole B section, unloading hole C section, unloading hole D section and unloading hole E section are all greater than the aperture of equalizing orifice.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve is provided with filter screen in the described equalizing orifice.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve, described main valve plug bottom is taper, the position corresponding with main valve plug is the taper that cooperates with the main valve plug lower seal on the described valve body.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve is provided with seal ring around a week of described main valve plug bottom.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve, described connecting body on valve gap, and are provided with seal ring between described connecting body and the valve gap by screw.
Above-mentioned endless belt formula high-voltage explosion-proof solenoid valve, described main valve plug top is provided with the mechanical lifting assembly, described mechanical lifting assembly comprises leading screw, described leading screw is arranged in the screw, described screw is disposed with locking nut, handwheel and cover plate from top to bottom, the below of described cover plate is provided with cylindrical shell, and the underpart of described leading screw is provided with lift block, and described lift block is connected with main valve plug.
The utility model compared with prior art has the following advantages: endless belt formula high-voltage explosion-proof solenoid valve described in the utility model can make main valve plug bottom balance evenly stressed, avoided because of moment flow excessive, main valve plug causes local erosion, make the main valve plug hair fastener that moves up and down because of the side is stressed, even have influence on the difficult problem that the instantaneous start-stop device of solenoid valve can't normally be opened.By being arranged on the mechanical lifting assembly of main valve plug top, for the unlatching of solenoid valve safety or close and provide another kind of and select.The position corresponding with main valve plug is the taper that cooperates with the main valve plug lower seal on the described valve body, makes the better effects if of closing of main valve plug.Week around described main valve plug bottom is provided with seal ring, makes main valve plug more airtight, can not reveal gas.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model.
Fig. 2 is a left TV structure schematic representation of the present utility model.
Fig. 3 is the structural representation of the two instantaneous start-stop devices of Electrical heads of the utility model.
Fig. 4 is the structural representation of the utility model connecting body.
Fig. 5 is the partial structurtes schematic representation of the utility model valve gap.
Description of reference numerals:
100-auxiliary valve core Electrical heads; 101-lock core sleeve; 102-first spring;
103-auxiliary valve core Electrical heads coil; 104-auxiliary valve core sleeve; 105-auxiliary valve core guide pin bushing;
The 106-auxiliary valve core; The 107-circular groove; The 108-sealing block;
109-second spring; The 110-fittings body; The 111-lock core;
112-the 3rd spring; 113-lock core Electrical heads coil; 114-lock core contiguous block;
115-lock core Electrical heads; The 200-connecting body; 201-unloading hole C section;
202-unloading hole D section; The 203-endless belt; The 300-valve body;
The 301-valve gap; The 302-gas-entered passageway; The 303-outlet passageway;
The 304-filter screen; The 305-equalizing orifice; 306-unloading hole A section;
307-unloading hole B section; 308-unloading hole E section; The 400-main valve plug;
The 401-main spring; 402-main valve plug epicoele; 403-main valve plug cavity of resorption;
The 501-lift block; The 502-cylindrical shell; The 503-handwheel;
The 504-locking nut; The 505-leading screw.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and a kind of endless belt formula high-voltage explosion-proof solenoid valve shown in Figure 5, comprise valve body 300, connecting body 200 and the valve gap 301 that is arranged on the valve body 300, be provided with gas-entered passageway 302 and outlet passageway 303 in the described valve body 300, be provided with main valve plug 400 in the described valve gap 301, be provided with main spring 401 in the described main valve plug 400, form main valve plug epicoele 402 between described main valve plug 400 tops and the valve gap 301, form main valve plug cavity of resorption 403 between described main valve plug 400 bottoms and the valve body 300, described gas-entered passageway 302 communicates with main valve plug cavity of resorption 403, described valve gap 301 is provided with the equalizing orifice 305 that gas-entered passageway 302 is communicated with main valve plug epicoele 402, described valve gap 301 is provided with the unloading hole A section 306 that is communicated with outlet passageway 303, be horizontally disposed with the unloading hole B section 307 that is " Z " font in the described valve gap 301, one end of described unloading hole B section 307 is connected with the upper end of unloading hole A section 306, the other end of described unloading hole B section 307 is connected with connecting body 200, described connecting body 200 comprises unloading hole C section 201 and unloading hole D section 202, one end of described unloading hole C section 201 is connected with unloading hole B section 307, on the described connecting body 200 and the other end that is positioned at unloading hole C section 201 be provided with endless belt 203, one end of described unloading hole D section 202 is communicated with main valve plug epicoele 402 by the unloading hole E section 308 that is arranged on the valve gap 301, the other end of described unloading hole D section 202 is communicated with endless belt 203, the arranged outside of described connecting body 200 has two Electrical heads start-stop devices, the described pair of instantaneous start-stop device of Electrical heads comprises auxiliary valve core Electrical heads 100 and passes through fittings body 110 and auxiliary valve core Electrical heads 100 vertically arranged lock core Electrical heads 115, described auxiliary valve core Electrical heads 100 comprises auxiliary valve core sleeve 104, in the described auxiliary valve core sleeve 104 auxiliary valve core guide pin bushing 105 is set, auxiliary valve core Electrical heads coil 103 and auxiliary valve core 106, described auxiliary valve core guide pin bushing 105 1 ends are fixed on the auxiliary valve core sleeve 104, the other end of auxiliary valve core guide pin bushing 105 is connected with auxiliary valve core 106 by first spring 102 that is arranged on the auxiliary valve core guide pin bushing 105, described secondary valve Electrical heads coil 103 is arranged on around the auxiliary valve core guide pin bushing 105, described auxiliary valve core 106 extend in the auxiliary valve core guide pin bushing 105, described auxiliary valve core 106 is provided with sealing block 108 away from an end of auxiliary valve core guide pin bushing 105, described sealing block 108 is connected with auxiliary valve core 106 by second spring 109, and described sealing block 108 is corresponding with the end of unloading hole C section 201; Described lock core Electrical heads 115 comprises lock core sleeve 101, lock core Electrical heads coil 113, lock core contiguous block 114 and lock core 111 are set in the described lock core sleeve 101, described lock core contiguous block 114 1 ends are fixed on the lock core sleeve 101, the other end of lock core contiguous block 114 is connected with lock core 111 by the 3rd spring 112, described lock core Electrical heads coil 113 is arranged on around the lock core contiguous block 114, described lock core 111 extend in the lock core contiguous block 114, and described auxiliary valve core 106 ends are provided with the circular groove 107 that lock core 111 ends can enter.
As Fig. 1, Fig. 2, Fig. 4 and shown in Figure 5, the aperture of described unloading hole A section 306, unloading hole B section 307, unloading hole C section 201, unloading hole D section 202 and unloading hole E section 308 is all greater than the aperture of equalizing orifice 305.
As shown in Figure 1, be provided with filter screen 304 in the described equalizing orifice 305, described filter screen 304 is selected the sintered filter screen for use.Described main valve plug 400 bottoms are taper, and the position corresponding with main valve plug is the taper that cooperates with main valve plug 400 lower seal on the described valve body 300, make the better effects if of closing of main valve plug.Around described main valve plug 400 bottoms a week be provided with seal ring, make main valve plug more airtight, can not reveal gas.
As shown in Figure 2, described connecting body 200 on valve gap 301, and is provided with seal ring between described connecting body 200 and the valve gap 301 by screw.
As shown in Figure 1, described main valve plug 400 tops are provided with the mechanical lifting assembly, described mechanical lifting assembly comprises leading screw 505, described leading screw 505 is arranged in the screw 506, described screw 506 is disposed with locking nut 504, handwheel 503 and cover plate 507 from top to bottom, the below of described cover plate 507 is provided with cylindrical shell 502, and the underpart of described leading screw 505 is provided with lift block 501, and described lift block 501 is connected with main valve plug 400.
This solenoid valve utilizes the energy of working medium self as power, by the pressure difference that forms at valve body 300, controls moving of main valve plug 400, realizes the opening and closing of solenoid valve.This solenoid valve is a leading type pressure reduction type solenoid valve.Be in sealing state or be in by the auxiliary valve cores 106 in the auxiliary valve core Electrical heads 100 and open hold mode and determined that equalizing orifice and unloading hole are to connect or partition, thereby make the unlatching of solenoid valve or close.Be divided into two-way from the pressurized gas of the upstream gas-entered passageway 302 by solenoid valve and enter valve body 300, the one tunnel arrives main valve plug cavity of resorption 403, and the equalizing orifice 305 that another curb on the valve body 300 upwards arrives main valve plug epicoele 402.When being in sealing station under the effect of auxiliary valve core 106 at its spring force, gas in the connecting body 200 is because of in Seal cage, the pressure of pressure at this moment and gas-entered passageway 302 state that tends to balance, both pressure equate, because the main valve plug 400 lower end conical surfaces are that the boundary is divided into inlet pressure bearing surface and outlet pressure bearing surface with the sealing surface, because of pressure difference is arranged, act on active force downward on the main valve plug 400 greater than the active force that makes progress, add the downward elastic force of main spring 401, main valve plug 400 is positioned at lowest positions (being sealing station), make inlet passage 302 and outlet passage 303 isolated, main valve plug 400 is in closed condition.
As the need opens solenoid valve, then open unloading hole (giving the 100 instantaneous energisings of auxiliary valve core Electrical heads), main valve plug epicoele 402 and outlet passageway 303 are connected, specific operation are: start auxiliary valve core Electrical heads 100, when the normal closed condition of solenoid valve, thereby auxiliary valve core 106 is by the elastic force crush seal piece 108 sealing unloading hole C sections 201 of first spring 102 and second spring 109, at this moment, by giving the 103 instantaneous power supplies of auxiliary valve core Electrical heads coil, auxiliary valve core 106 againsts the force of the spring are moved right, the end of lock core 111 enters under the elastic force of the 3rd spring 112 in the circular groove 107 of auxiliary valve core 106, after secondary valve Electrical heads coil 103 outages, auxiliary valve core 106 promotes auxiliary valve core 106 and is moved to the left under the effect of its spring force, confined planes up to the circular groove 107 of auxiliary valve core 106 snaps on the lock core 111, this moment, sealing block 108 left the end of unloading hole C section 201, at this moment, by endless belt 203 unloading hole C section 201 is communicated with unloading hole D section 202, gas passes through equalizing orifice 305 to main valve plug epicoele 402 from gas-entered passageway 302, the gas of main valve plug epicoele 402 leads to unloading hole D section 202 by unloading hole E section 308 again, arrive endless belt 203 from unloading hole D section 202, lead to unloading hole C section 201 from endless belt 203, lead to unloading hole B section 307 from unloading hole C section 201 again, lead to unloading hole A section 306 from unloading hole B section 307 at last, and then enter outlet passageway 303, described unloading hole A section 306, unloading hole B section 307, unloading hole C section 201, the aperture of unloading hole D section 202 and unloading hole E section 308 is all greater than the aperture of equalizing orifice 305, so main valve plug epicoele 402 pressure equate with the pressure of outlet passageway 303 rapidly.Concerning main valve plug 400, main valve plug epicoele 402 is an outlet pressure, and main valve plug cavity of resorption 403 parts are subjected to inlet pressure, and a part is subjected to outlet pressure, and main valve plug 400 is moved upward rapidly under the active force of very big pressure reduction, and solenoid valve is opened proper functioning simultaneously.
When closing, if emergency cut-off solenoid valve, then seal unloading hole C section 201 (giving the 115 instantaneous energisings of lock core Electrical heads), cut-out main valve plug epicoele 402 communicates with outlet passageway 303, specific operation are: start lock core Electrical heads 115, by giving the 113 instantaneous power supplies of lock core Electrical heads coil, lock core 111 againsts the force of the spring are moved down, circular groove 107 is left in the end of lock core 111, sealing block 108 rapidly with the end sealing of unloading hole C section 201, has cut off being communicated with of outlet passageway 303 and main valve plug epicoele 402 under the elastic force effect of first spring 102 and second spring 109.At this moment, main valve plug epicoele 402 pressure equate with the pressure of gas-entered passageway 303 rapidly; Concerning main valve plug 400, main valve plug epicoele 402 is stressed equal fully with main valve plug cavity of resorption 403, and then main valve plug 400 moves down rapidly under the elastic force effect of main spring 401, until closing solenoid valve.After closing, main valve plug epicoele 402 is subjected to inlet pressure, and main valve plug cavity of resorption 403 parts are subjected to inlet pressure, and a part is subjected to outlet pressure, all be usually inlet pressure greater than outlet pressure, so solenoid valve closes tighter and tighter, realized well head overall safety emergency cut-off.
In the time of in the winter time, because when having a little freezing can't the unlatching in the solenoid valve, can adopt the mechanical lifting assembly to come opens solenoid valve, concrete using method is: by rotation hand wheel 503, rotatablely moving of handwheel 503 is converted into the straight line motion that makes progress of leading screw 505, because leading screw boss 501 transverse dimensions are greater than the diameter of leading screw 505, main valve plug 400 can be driven at the position that leading screw boss 501 contacts with main valve plug 400, thereby driving electromagnetic valve core 400 moves up, open solenoid valve by force, directly connect gas-entered passageway 302 and outlet passageway 303, when closing, rotation hand wheel 503 moves downward leading screw 505, thereby main valve plug 400 is closed, and cuts off gas-entered passageway 302 and outlet passageway 303.
This solenoid valve is by changing the airflow direction of interior media, airflow direction is optimized for from bottom to top, make main valve plug 400 bottoms evenly stressed, avoided because of moment flow excessive, main valve plug 400 caused local erosion and because of the side is stressed main valve plug 400 is moved up and down be obstructed, even have influence on the difficult problem that the instantaneous start-stop device of solenoid valve can't normally be opened.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. endless belt formula high-voltage explosion-proof solenoid valve, it is characterized in that: comprise valve body (300), connecting body (200) and be arranged on valve gap (301) on the valve body (300), be provided with gas-entered passageway (302) and outlet passageway (303) in the described valve body (300), be provided with main valve plug (400) in the described valve gap (301), be provided with main spring (401) in the described main valve plug (400), form main valve plug epicoele (402) between described main valve plug (400) top and the valve gap (301), form main valve plug cavity of resorption (403) between described main valve plug (400) bottom and the valve body (300), described gas-entered passageway (302) communicates with main valve plug cavity of resorption (403), described valve gap (301) is provided with the equalizing orifice (305) that gas-entered passageway (302) is communicated with main valve plug epicoele (402), described valve gap is provided with the unloading hole A section (306) that is communicated with outlet passageway (303), be horizontally disposed with the unloading hole B section (307) that is " Z " font in the described valve gap (301), one end of described unloading hole B section (307) is connected with the upper end of unloading hole A section (306), the other end of described unloading hole B section (307) is connected with connecting body (200), described connecting body (200) comprises unloading hole C section (201) and unloading hole D section (202), one end of described unloading hole C section (201) is connected with unloading hole B section (307), described connecting body (200) is gone up and the other end that is positioned at unloading hole C section (201) is provided with endless belt (203), one end of described unloading hole D section (202) is communicated with main valve plug epicoele (402) by the unloading hole E section (308) that is arranged on the valve gap (301), the other end of described unloading hole D section (202) is communicated with endless belt (203), the arranged outside of described connecting body (200) has two Electrical heads start-stop devices, the described pair of instantaneous start-stop device of Electrical heads comprises auxiliary valve core Electrical heads (100) and passes through fittings body (110) and the vertically arranged lock core Electrical heads of auxiliary valve core Electrical heads (100) (115), described auxiliary valve core Electrical heads (100) comprises auxiliary valve core sleeve (104), auxiliary valve core guide pin bushing (105) is set in the described auxiliary valve core sleeve (104), auxiliary valve core Electrical heads coil (103) and auxiliary valve core (106), described auxiliary valve core guide pin bushing (105) one ends are fixed on the auxiliary valve core sleeve (104), the other end of auxiliary valve core guide pin bushing (105) is connected with auxiliary valve core (106) by first spring (102) that is arranged on the auxiliary valve core guide pin bushing (105), described secondary valve Electrical heads coil (103) is arranged on auxiliary valve core guide pin bushing (105) on every side, described auxiliary valve core (106) extend in the auxiliary valve core guide pin bushing (105), described auxiliary valve core (106) is provided with sealing block (108) away from an end of auxiliary valve core guide pin bushing (105), described sealing block (108) is connected with auxiliary valve core (106) by second spring (109), and described sealing block (108) is corresponding with the end of unloading hole C section (201); Described lock core Electrical heads (115) comprises lock core sleeve (101), lock core Electrical heads coil (113) is set in the described lock core sleeve (101), lock core contiguous block (114) and lock core (111), described lock core contiguous block (114) one ends are fixed on the lock core sleeve (101), the other end of lock core contiguous block (114) is connected with lock core (111) by the 3rd spring (112), described lock core Electrical heads coil (113) is arranged on lock core contiguous block (114) on every side, described lock core (111) extend in the lock core contiguous block (114), and described auxiliary valve core (106) end is provided with the circular groove (107) that lock core (111) end can enter.
2. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1 is characterized in that: the aperture of described unloading hole A section (306), unloading hole B section (307), unloading hole C section (201), unloading hole D section (202) and unloading hole E section (308) is all greater than the aperture of equalizing orifice (305).
3. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1 is characterized in that: be provided with filter screen (304) in the described equalizing orifice (305).
4. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1 is characterized in that: described main valve plug (400) bottom is taper, and it is the taper that cooperates with main valve plug (400) lower seal that described valve body (300) is gone up the position corresponding with main valve plug.
5. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1 is characterized in that: one week be provided with seal ring around described main valve plug (400) bottom.
6. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1 is characterized in that: described connecting body (200) on valve gap (301), and is provided with seal ring between described connecting body (200) and the valve gap (301) by screw.
7. endless belt formula high-voltage explosion-proof solenoid valve according to claim 1, it is characterized in that: described main valve plug (400) top is provided with the mechanical lifting assembly, described mechanical lifting assembly comprises leading screw (505), described leading screw (505) is arranged in the screw (506), described screw (506) is disposed with locking nut (504), handwheel (503) and cover plate (507) from top to bottom, the below of described cover plate (507) is provided with cylindrical shell (502), the underpart of described leading screw (505) is provided with lift block (501), and described lift block (501) is connected with main valve plug (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201292738U CN201973247U (en) | 2011-04-27 | 2011-04-27 | Endless belt type high-voltage explosion prevention electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201292738U CN201973247U (en) | 2011-04-27 | 2011-04-27 | Endless belt type high-voltage explosion prevention electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973247U true CN201973247U (en) | 2011-09-14 |
Family
ID=44578350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201292738U Expired - Lifetime CN201973247U (en) | 2011-04-27 | 2011-04-27 | Endless belt type high-voltage explosion prevention electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973247U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727778A (en) * | 2015-03-18 | 2015-06-24 | 中国石油大学(北京) | Remote high-pressure well opening emergency cut-off device |
| CN105020415A (en) * | 2014-04-19 | 2015-11-04 | 郑珊红 | Multi-functional regulable stop valve |
| CN108361428A (en) * | 2017-01-26 | 2018-08-03 | 汪俊霞 | It is a kind of can be with the solenoid valve of lock-out state |
| CN113685590A (en) * | 2021-10-26 | 2021-11-23 | 南通长江阀门制造有限公司 | High-strength explosion-proof valve |
-
2011
- 2011-04-27 CN CN2011201292738U patent/CN201973247U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020415A (en) * | 2014-04-19 | 2015-11-04 | 郑珊红 | Multi-functional regulable stop valve |
| CN105020415B (en) * | 2014-04-19 | 2018-09-07 | 良工阀门集团有限公司 | A kind of multi-functional adjustable cut-off valve |
| CN104727778A (en) * | 2015-03-18 | 2015-06-24 | 中国石油大学(北京) | Remote high-pressure well opening emergency cut-off device |
| CN104727778B (en) * | 2015-03-18 | 2017-04-12 | 中国石油大学(北京) | Remote high-pressure well opening emergency cut-off device |
| CN108361428A (en) * | 2017-01-26 | 2018-08-03 | 汪俊霞 | It is a kind of can be with the solenoid valve of lock-out state |
| CN113685590A (en) * | 2021-10-26 | 2021-11-23 | 南通长江阀门制造有限公司 | High-strength explosion-proof valve |
| CN113685590B (en) * | 2021-10-26 | 2021-12-21 | 南通长江阀门制造有限公司 | High-strength explosion-proof valve |
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Granted publication date: 20110914 |