CN210034536U - Pilot-operated pneumatic electromagnetic valve - Google Patents
Pilot-operated pneumatic electromagnetic valve Download PDFInfo
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- CN210034536U CN210034536U CN201920436277.7U CN201920436277U CN210034536U CN 210034536 U CN210034536 U CN 210034536U CN 201920436277 U CN201920436277 U CN 201920436277U CN 210034536 U CN210034536 U CN 210034536U
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Abstract
The utility model relates to a pilot-operated pneumatic solenoid valve, which comprises a solenoid valve component, a gas push rod, a bracket, a gas valve core, a liquid valve core, a filter screen component, a gas circuit spring, a connecting rod, a gas connection nozzle, a liquid connection nozzle, a gas circuit spring, a liquid circuit push rod, a liquid shell Y, a liquid shell R, a sealing rubber ring and a rubber gasket; the solenoid valve core in the solenoid valve subassembly moves to the left side under the effect of electromagnetic force, pushes away air push rod, connecting rod and air case and moves to the left side together, makes the guide's gas get into in the support cavity, has evenly distributed's through-hole in the cavity of support, and the air guide makes the cushion inflation of both sides a certain distance from the through-hole in the support cavity earlier, and under the effect of guide's atmospheric pressure, the liquid push rod of support both sides promotes the liquid valve core of both sides respectively and removes, opens the inlet of both sides, makes the liquid medium flow direction export. The utility model has the characteristics of compact structure, light in weight, synchronism are high and response time is fast etc, are applicable to propulsion systems such as satellite, weapon.
Description
Technical Field
The utility model relates to a solenoid valve, concretely relates to pneumatic solenoid valve of guide's formula.
Background
The pilot pneumatic electromagnetic valve is an important component in the attitude and orbit control systems in the fields of satellite, weapon and electric propulsion. In a traditional two-component engine, two direct-acting solenoid valves are generally used for respectively supplying fuel and oxidant, which results in that the whole engine system not only has heavy mass, but also the opening and closing synchronicity of the two solenoid valves is not high, and particularly, the response time of the two direct-acting solenoid valves used in a high-flow two-component engine is very slow.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a guide's formula solenoid valve is provided, have characteristics such as compact structure, light in weight, synchronism height and response time are fast, be applicable to propulsion systems such as satellite, weapon.
The technical solution of the utility model is as follows:
a pilot-operated pneumatic electromagnetic valve comprises an electromagnetic valve component, an air push rod, a support, an air valve core, a liquid valve core, a filter screen component, a connecting rod, an air path spring, an air connection nozzle, a liquid path spring, a liquid path push rod, a liquid shell Y, a liquid shell R and a rubber gasket;
one side of the upper part of the bracket is fixed with the electromagnetic valve component, and the other side of the upper part of the bracket is fixed with the air connecting nozzle; one end of the air push rod is arranged in the electromagnetic valve component, the other end of the air push rod is provided with a groove, one end of the connecting rod is arranged in the groove on the end surface of the air push rod, the other end of the connecting rod is arranged in the groove on the end surface of the air valve core, the air valve core and the air circuit spring are arranged in a cavity formed by the air connecting nozzle and the support, and the air valve core is pressed on the sealing cutting edge of the support through the air circuit spring to realize the sealing effect;
the liquid valve comprises a support, a liquid shell Y, a liquid shell R, a liquid valve core, a liquid path push rod and a liquid path spring, wherein the liquid shell Y and the liquid shell R are respectively arranged on two sides of the lower portion of the support, rubber pads are respectively arranged between the support and the liquid shell Y and between the support and the liquid shell R, liquid connecting nozzles are respectively arranged at two ends of the liquid shell Y and the liquid shell R, the liquid valve core, the liquid path push rod and the liquid path spring are arranged in an inner cavity formed by the liquid connecting nozzles, the liquid connecting nozzles enable a sealing surface of the liquid valve core to be pressed on sealing cutting edges of the liquid shell Y and the liquid shell R to form sealing through compressing the liquid path spring, a groove is formed in the end face of the liquid valve core, one end of the liquid path push rod is arranged in the groove in the end face of the liquid.
The utility model has the advantages of compared with the prior art:
(1) the utility model has two liquid inlet and outlet, which is suitable for two-component engine, and the weight of one pilot-operated pneumatic solenoid valve is much lighter than that of two direct-operated solenoid valves;
(2) after the inner cavity of a bracket component of the utility model is inflated, the liquid valve cores on the two sides are opened simultaneously through the expansion of the rubber pads on the two sides, so that the liquid valve cores on the two sides act synchronously;
(3) the utility model discloses solenoid valve subassembly's casing adopts integral type welded structure, compact structure, and the magnetic flux utilization ratio is high, so solenoid valve action response time is less than or equal to 14ms, has solved the slow problem of response time of ordinary solenoid valve under the large-traffic condition.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the present invention in a non-energized state.
Fig. 3 is a schematic view of the present invention in the power-on state.
In the figure, 1, a solenoid valve assembly, 2, an air push rod, 3, a bracket, 4, a connecting rod, 5, an air valve core, 6, an air path spring, 7, an air connection nozzle, 8, a liquid connection nozzle, 9, a filter screen assembly, 10, a liquid path spring, 11, a liquid valve core, 12, a liquid shell Y, 13, a liquid path push rod, 14, a rubber gasket, 15, a liquid shell R, 16, a sealing rubber ring, 101, a spiral ring, 102, a magnetic valve core, 103, a housing, 104, a magnetic isolation gasket, 105, a coil, 106, a shell, 901, a filter screen framework, 902, a filter screen, 903, a support screen, 904 and a support ring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with specific embodiments.
Examples
As shown in the figure, the pilot-operated pneumatic solenoid valve comprises a solenoid valve component 1, an air push rod 2, a support 3, an air valve core 5, a liquid valve core 11, a filter screen component 9, a connecting rod 4, an air path spring 6, an air connection nozzle 7, a liquid connection nozzle 8, a liquid path spring 10, a liquid path push rod 13, a liquid shell body Y12, a liquid shell body R15, a sealing rubber ring 16 and a rubber gasket 14.
The electromagnetic valve assembly 1 is a magnetic field forming mechanism, and comprises a casing 106 formed by welding a magnetic material and stainless steel into a whole, a coil 105 wound on the outer wall of the casing and used for generating a magnetic field, a housing 103 sleeved outside the coil and used for forming a magnetic field loop, a magnetic valve core 102 arranged in the casing in a moving manner, a magnetic isolation gasket 104 used for providing a magnetic isolation effect and installed at one end of the magnetic valve core 102, and a spiral ring 101 installed at the end of the casing and used for controlling the stroke of the magnetic valve core. The solenoid valve assembly is fixed to one end of the bracket 3 by screw connection.
The support 3 is the utility model discloses an important seal part, its one end and solenoid valve subassembly 1 pass through threaded connection, and the other end and 7 threaded connection of gas connector. The air push rod 2 is installed between the bracket 3 and the magnetic valve core 102, and the air push rod 2 and the right side cutting edge of the bracket 3 form a sealing effect. The air connector 7 is connected with the bracket 3 by screw threads, and the air connector 7 forms a seal by using a sealing rubber ring 16. The gas valve core 5 and the gas circuit spring 6 are installed in a cavity formed by the gas nozzle 7 and the support 3, the gas valve core 5 is pressed on a cutting edge on the left side of the support 3 through the gas circuit spring 6 to form a sealing effect, and the gas valve core 5 is provided with a medium flow channel. One end of the connecting rod 4 is arranged in a groove on the end face of the air push rod 2, the other end of the connecting rod 4 is arranged in a groove on the end face of the air valve core 5, and the connecting rod 4 enables the air push rod 2 and the air valve core 5 to form linkage and form a dynamic sealing effect with the support 3.
The support 3 is integrally formed by adopting a titanium alloy three-D printing technology, a medium circulation cavity channel is arranged in the support, and densely distributed small holes are formed in the left end surface and the right end surface of the support. The rubber pad 14 is tightly attached to the surface of the end face, and the outer edge of the rubber pad 14 is higher than the outer end face of the support 3. Liquid shell Y12 and liquid shell R15 are respectively arranged on the outer sides of rubber mats 14 on two sides and are connected through bolts, and proper pretightening force is provided by the bolts so that liquid shell Y12 and liquid shell R15 are attached to the outer end face of the support 3 and the outer edge of the rubber mat 14 is squeezed to form sealing. At this time, the rubber pads 14 on both sides of the bracket 3 divide the space of the pilot-operated solenoid valve into three parts, namely an air path part and two liquid path parts, which are independent of each other.
The liquid connection nozzle 8 is respectively installed at two ends of a liquid shell Y12 and a liquid shell R15 through threaded connection, leakage is isolated through a sealing rubber ring 16, and the liquid valve core 11, the liquid path push rod 13 and the liquid path spring 10 are installed in an inner cavity formed by the liquid connection nozzle 8, the liquid shell Y12 and the liquid shell R15. The liquid path spring 10 is installed between the liquid connection mouth 8 and the liquid valve core 11, the spring force generated by the compression of the liquid path spring 10 enables the sealing surface of the liquid valve core 11 to be pressed on the cutting edges of the liquid shell Y12 and the liquid shell R15 to form sealing, the center of the sealing surface of the liquid valve core 11 is provided with a groove for installing the liquid push rod 13, the other end of the liquid push rod 13 is pressed on the rubber mat 14, and the left part and the right part of the liquid path are symmetrical in structure.
Principle of operation
The pilot-operated pneumatic electromagnetic valve is provided with a pilot-operated gas inlet A, a pilot-operated gas exhaust hole B, a fluid 1 inlet C, a fluid 2 inlet D, a fluid 1 outlet E and a fluid 2 outlet F. The pilot gas source is connected with a gas connecting nozzle 7, and the two fluid media are respectively connected with a corresponding liquid connecting nozzle 8. The pilot-operated solenoid valve controls the on-off of pilot gas through the opening and closing of the solenoid valve component 1, and further controls the synchronous opening and closing of two liquid paths. In the initial state, the pilot gas is cut off by a sealing pair formed by a left cutting edge of the bracket 3 and a sealing piece after passing through a medium channel of the gas valve core 5. The liquid path fluid is also cut off by a sealing pair formed by a cutting edge of the liquid shell Y (R) and a sealing piece after passing through a medium channel of the liquid valve core 11. The initial state is as shown in figure 2.
When the pilot pneumatic solenoid valve is powered on, the coil 105 generates a magnetic field, the formed electromagnetic force enables the magnetic valve core 102 to move towards the left side, the magnetic valve core 102 pushes the air push rod 2 to move together until the air push rod 2 presses a cutting edge on the right side of the bracket 3 to form a seal, meanwhile, the air valve core 5 is driven by the connecting rod 4 to overcome the spring force to move towards the left side, pilot gas enters an inner cavity of the bracket 3 on the left side of the air valve core 5 and the left side of the bracket 3, the pressure of the inner cavity of the bracket 3 is increased, the air pressure enables the rubber pad 14 to expand, the rubber pad 14 pushes the liquid path push rods 13 on two sides, so that a sealing pair of the liquid valve core 11 and the liquid housing Y (R) is opened, liquid flows through a fluid channel inside the liquid housing Y (R) to reach an outlet, the.
When the pilot-operated pneumatic solenoid valve is de-energized, the electromagnetic force disappears, the air valve core 5 resets under the action of spring force and air pressure, the sealing with the support 3 is realized again, and the pilot gas is cut off. The air push rod 2 and the magnetic valve core 102 are reset simultaneously under the driving of the connecting rod 4, the sealing pair at the cutting edge of the air push rod 2 and the support 3 is opened, air in the support 3 is exhausted through the exhaust hole, the air pressure in the support 3 is restored to the atmospheric pressure, the liquid path push rod 13 and the liquid valve core 11 are reset under the action of the spring force because the rubber gasket 14 is an elastic body, the sealing piece of the liquid valve core 11 and the cutting edge of the liquid shell Y (R) form a sealing pair again to cut off the fluid, and the pilot-operated electromagnetic valve is restored to the original state.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; the utility model discloses a concrete embodiment and the technical principle who utilizes, any basis the utility model discloses equivalent transform on the technical scheme basis all belongs to within the scope of protection of the utility model.
The detailed description of the present invention is the technology known to those skilled in the art.
Claims (9)
1. A pilot-operated pneumatic electromagnetic valve is characterized by comprising an electromagnetic valve component (1), an air push rod (2), a support (3), an air valve core (5), a liquid valve core (11), a filter screen component (9), a connecting rod (4), an air path spring (6), an air connection nozzle (7), a liquid connection nozzle (8), a liquid path spring (10), a liquid path push rod (13), a liquid shell Y (12), a liquid shell R (15) and a rubber gasket (14);
the electromagnetic valve assembly (1) is fixed on one side of the upper part of the bracket (3), and the air connecting nozzle (7) is fixed on the other side of the upper part of the bracket (3); one end of the air push rod (2) is installed in the electromagnetic valve component, the other end of the air push rod (2) is provided with a groove, one end of the connecting rod (4) is installed in the groove on the end face of the air push rod (2), the other end of the connecting rod (4) is installed in the groove on the end face of the air valve core (5), the air valve core (5) and the air circuit spring (6) are installed in a cavity formed by the air connection nozzle (7) and the support (3), and the air valve core (5) is pressed on a sealing cutting edge of the support (3) through the air circuit spring (6) to realize a sealing effect;
a liquid shell Y (12) and a liquid shell R (15) are respectively arranged on two sides of the lower part of the support (3), rubber pads (14) are respectively arranged between the support (3) and the liquid shell Y (12) as well as between the support (3) and the liquid shell R (15), liquid connection nozzles (8) are respectively arranged at two ends of the liquid shell Y (12) as well as the liquid shell R (15), a liquid valve core (11), a liquid path push rod (13) and a liquid path spring (10) are arranged in an inner cavity formed by the liquid connection nozzles (8), the liquid connection nozzles (8) enable a sealing surface of the liquid valve core (11) to be pressed on sealing cutting edges of the liquid shell Y (12) and the liquid shell R (15) to form sealing by compressing the liquid path spring (10), a groove is arranged on the end surface of the liquid valve core (11), one end of the liquid path push rod (13) is arranged in the groove on the end surface of the liquid valve core (11), and the other end of the liquid path push rod (13) is pressed on the rubber pads (14), a filter screen component (9) is arranged at the inlet of the liquid connecting nozzle (8).
2. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the electromagnetic valve assembly (1) comprises a shell (106) formed by welding a magnetic material and stainless steel, a coil (105) wound on the outer wall of the shell and used for generating a magnetic field, a cover shell (103) sleeved outside the coil and used for forming a magnetic field loop, a magnetic valve core (102) arranged in the shell in a moving mode, a magnetic isolation gasket (104) providing a magnetic isolation effect and installed at one end of the magnetic valve core (102), and a spiral ring (101) installed at the end of the shell and used for controlling the stroke of the magnetic valve core.
3. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the bracket (3) is of an integrated structure, a medium circulation cavity is arranged in the bracket, and densely distributed small holes are formed in the left end surface and the right end surface of the bracket.
4. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the filter screen assembly (9) comprises a filter screen (902) and a supporting screen (903) which plays a role of supporting the filter screen, the filter screen and the supporting screen (903) are installed on a filter screen framework (901) and are pressed tightly through a supporting ring (904), and the supporting ring (904) is welded with the filter screen framework (901).
5. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the rubber pad (14) is an elastic rubber membrane, the outer edge of the rubber pad (14) is higher than the outer end face of the support (3), and any one of nitrile rubber, ethylene propylene rubber or fluoroether rubber is selected according to a liquid path flowing medium.
6. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the air valve core (5) is provided with a medium flow passage.
7. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the electromagnetic valve component (1) and the air faucet (7) are fixed on two sides of the upper part of the bracket (3) in a threaded connection mode; the liquid shell Y (12) and the liquid shell R (15) are fixed on two sides of the lower part of the bracket (3) in a threaded connection mode.
8. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the end of the air push rod (2) and the end of the air valve core (5) connected with the connecting rod (4) are both non-metal end faces.
9. A pilot operated pneumatic solenoid valve as claimed in claim 1, wherein: the air connecting nozzle (7) and the liquid connecting nozzle (8) are both provided with sealing rubber rings (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436277.7U CN210034536U (en) | 2019-04-02 | 2019-04-02 | Pilot-operated pneumatic electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920436277.7U CN210034536U (en) | 2019-04-02 | 2019-04-02 | Pilot-operated pneumatic electromagnetic valve |
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| Publication Number | Publication Date |
|---|---|
| CN210034536U true CN210034536U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920436277.7U Active CN210034536U (en) | 2019-04-02 | 2019-04-02 | Pilot-operated pneumatic electromagnetic valve |
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| Country | Link |
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| CN (1) | CN210034536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899566A (en) * | 2019-04-02 | 2019-06-18 | 沈阳航天新光集团有限公司 | A kind of pilot-operated type air-operated solenoid valve |
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2019
- 2019-04-02 CN CN201920436277.7U patent/CN210034536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899566A (en) * | 2019-04-02 | 2019-06-18 | 沈阳航天新光集团有限公司 | A kind of pilot-operated type air-operated solenoid valve |
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