CN212509546U - Two-way circulation solenoid valve - Google Patents
Two-way circulation solenoid valve Download PDFInfo
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- CN212509546U CN212509546U CN202021378571.6U CN202021378571U CN212509546U CN 212509546 U CN212509546 U CN 212509546U CN 202021378571 U CN202021378571 U CN 202021378571U CN 212509546 U CN212509546 U CN 212509546U
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Abstract
The utility model discloses a two-way circulation solenoid valve, which belongs to the field of refrigeration solenoid valves and aims to provide a two-way circulation solenoid valve to solve the defects that the solenoid valve has larger noise and is easy to damage by a return spring when in use, and the technical proposal is that the two-way circulation solenoid valve comprises a valve seat, an air inlet pipe, an air outlet pipe and a valve component, wherein the outer surface of one side of the valve seat is close to the lower end position and the outer surface of the lower end is provided with a pipeline interface, the air inlet pipe is arranged on the pipeline interface of the outer surface of one side of the valve seat, the air outlet pipe is arranged on the pipeline interface of the outer surface of the lower end of the valve seat, the valve component is arranged on the outer surface of the upper end of the valve seat, the valve component comprises an outer cover, a sealing, and the upper end of the inner surface of the iron core hole is fixedly provided with a return spring.
Description
Technical Field
The utility model relates to a refrigeration solenoid valve field, in particular to two-way circulation solenoid valve.
Background
With the development of society, the living standard of people is continuously improved, refrigeration equipment such as air conditioners, refrigerators and the like become necessities in the life of people, in a refrigeration system, generally, when an electromagnetic valve works, the pressure of an air inlet pipe is greater than that of an air outlet pipe, a piston is opened, and a medium flows to the air outlet pipe from the air inlet pipe; however, in some complex systems, the pressure of the air outlet pipe is larger than that of the air inlet pipe, and the medium flows from the air outlet pipe to the air inlet pipe, so that the two-way circulation electromagnetic valve is invented by people, and along with the rapid development of science and technology, the requirements of people on the two-way circulation electromagnetic valve are continuously increased, so that the existing two-way circulation electromagnetic valve cannot meet the use requirements of people;
the existing two-way circulation electromagnetic valve has certain disadvantages when in use, firstly, when the airflow of the existing two-way circulation electromagnetic valve runs reversely, the pressure of an air outlet pipe is larger than that of an air inlet pipe, and a medium flows from the air outlet pipe
When the pressure of the air outlet pipe is increased instantly, the pressure of the valve cavity above the piston is increased to the valve cavity below the piston through the air inlet of the piston, when the pressures of the valve cavity above and below the piston are balanced, the piston is pushed down by the pressure above the piston instantly, the main valve port is closed, the pressure of the pressure above the piston is released to the air inlet pipe through the air inlet of the piston, when the pressure of the air outlet pipe is greater than the pressure of the valve cavity above the piston, the steel ball is pushed open to form circulation, the piston moves up and down circularly, the electromagnetic valve can generate obvious noise, secondly, the air pressure of the existing electromagnetic valve is often increased instantly when the electromagnetic valve is used, the pressure of the existing electromagnetic valve is increased instantly, the restoring spring is subjected to greater pressure instantly, and the restoring spring is greatly deformed, can lead to the answer spring to exceed the elastic deformation of self, lead to the answer spring to damage for the solenoid valve can't be used, and finally, the gas velocity through the solenoid valve during the use is fast, and atmospheric pressure is great, can produce great vibration, can influence the life of solenoid valve, unsatisfied people's operation requirement, for this reason, we propose a two-way circulation solenoid valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-way circulation solenoid valve has the advantage that reduces the iron core noise, protects the answer spring and reduce the solenoid valve vibration that atmospheric pressure change causes.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a two-way circulation electromagnetic valve comprises a valve seat, an air inlet pipe, an air outlet pipe and a valve component, wherein pipeline interfaces are respectively arranged on the outer surface of one side of the valve seat, which is close to the lower end, and the outer surface of the lower end, the air inlet pipe is arranged on the pipeline interface on the outer surface of one side of the valve seat, the air outlet pipe is arranged on the pipeline interface on the outer surface of the lower end of the valve seat, the valve component is arranged on the outer surface of the upper end of the valve seat and comprises an outer cover, a sealing head, an iron core, a piston and a steel ball, the end enclosure is fixedly arranged at the top end of the inner surface of the outer cover, the iron core is movably arranged on the inner surface of the outer cover, the piston is fixedly arranged on the outer surface of the lower end of the iron core, an iron core hole is arranged in the iron core, the return spring is fixedly mounted at the upper end of the inner surface of the iron core hole, the steel ball is arranged between the iron core and the piston, and the pressure balancing device is arranged inside the piston.
The pressure balancing device comprises a cavity, a valve core and an air inlet, the cavity is arranged in the middle of the interior of the piston, the valve core is movably arranged in the cavity, and the air inlet is arranged on the outer surface of the piston.
Through the valve core arranged in the piston, when a medium reversely flows, the pressure of the air outlet pipe is greater than that of the air inlet pipe, the pressure pushes the valve core to the top, the valve core and a middle hole of the piston are forced to be sealed, and the medium cannot flow to the steel ball, so that the medium can only push the piston open, the medium flows to the air inlet pipe from the air outlet pipe, meanwhile, the pressure of the air outlet pipe enters the valve cavity above the piston through the air inlet of the piston, the pressure of the upper valve cavity is increased and reaches pressure balance, the piston is kept still in the whole reverse process, and.
Furthermore, through holes are formed in the upper end of the cavity and the lower end of the cavity in the piston, and the diameter of the valve core is larger than that of the through holes.
Further, a valve cavity is arranged between the piston and the iron core, and the upper end of the air inlet is connected with the valve cavity.
Furthermore, a groove is formed in the outer surface of the lower end of the piston, and a check ring is riveted inside the groove.
Further, the lower extreme surface of head is located the outside of replying the spring and is provided with a plurality of sets of auxiliary device, auxiliary device includes decompression section of thick bamboo, piston rod, clamp plate and spring, spring fixed mounting is at the lower extreme surface of decompression section of thick bamboo, the upper end of piston rod passes spring movable mounting at the internal surface of decompression section of thick bamboo, the lower extreme fixed mounting of piston rod is in the upper end surface intermediate position of clamp plate, annular decompression groove has been seted up to decompression section of thick bamboo's surface, the internal surface in annular decompression groove is close to outside position fixed mounting and has the latex sealing washer, a plurality of sets of gas pockets have been seted up to annular decompression groove's interior bottom surface, and the internal surface in a plurality of.
Through a plurality of sets of auxiliary device that set up, when atmospheric pressure increases the impact piston in the twinkling of an eye, the piston atress is too big can drive the whole upward movement of iron core when, answer the spring and take place deformation earlier, take place the clamp plate contact on deformation back iron core and the auxiliary device, clamp plate extrusion piston rod, the inside gas of a piston rod extrusion decompression section of thick bamboo, the inside gas of decompression section of thick bamboo can get into the latex sealing washer through the gas pocket fast, the heat that produces with rubber packing ring internal surface friction in the gas entering latex sealing washer can consume the kinetic energy that the gas impact produced, the elasticity that combines the spring is with the iron core support column, avoid appearing the great elastic deformation that leads to the answer the spring to exceed self and the condition of.
Furthermore, the upper end of the steel ball is connected with the bottom end of the iron core hole in the iron core, and the lower end of the steel ball is connected with the through hole in the piston.
To sum up, the utility model discloses following beneficial effect has:
1. through the valve core arranged in the piston, when a medium flows reversely, and the pressure of the air outlet pipe is greater than that of the air inlet pipe, the pressure pushes the valve core to the top, so that the valve core and a middle hole of the piston are forced to be sealed, the medium cannot flow to the steel ball, therefore, the medium can only push the piston open, the medium flows to the air inlet pipe from the air outlet pipe, meanwhile, the pressure of the air outlet pipe enters the valve cavity above the piston through the air inlet of the piston, the pressure of the upper valve cavity is increased and reaches pressure balance, the piston is kept still in the whole reverse process;
2. through a plurality of sets of auxiliary device that set up, when atmospheric pressure increases the impact piston in the twinkling of an eye, the piston atress is too big can drive the whole upward movement of iron core when, reply spring takes place deformation earlier, take place the clamp plate contact on deformation back iron core and the auxiliary device, clamp plate extrusion piston rod, the inside gas of a piston rod extrusion decompression section of thick bamboo, the inside gas of decompression section of thick bamboo can get into the latex sealing washer through the gas pocket fast, the heat that produces with rubber packing ring internal surface friction in the gas entering latex sealing washer can consume the kinetic energy that the gas impact produced, the elasticity of combination spring is with the iron core support column, avoid appearing that the great elastic deformation that leads to replying the spring to exceed the condition that self elastic deformation and damage, and the structure of whole two-way circulation solenoid valve is fairly simple, and convenient for operation, satisfy.
Drawings
FIG. 1 is a schematic view of the overall construction of a two-way flow-through solenoid valve;
FIG. 2 is an enlarged view of A of FIG. 1 of a two-way flow solenoid valve;
FIG. 3 is a block diagram of an auxiliary device in a two-way flow solenoid valve;
fig. 4 is an internal structural view of an auxiliary device in a two-way flow solenoid valve.
In the figure, 1, valve seat; 2. an air inlet pipe; 3. an air outlet pipe; 4. a housing; 5. sealing the end; 6. an iron core; 7. an iron core hole; 8. a piston; 9. a steel ball; 10. a return spring; 11. a cavity; 12. a valve core; 13. an air inlet; 14. a retainer ring; 15. a pressure reducing cylinder; 16. a piston rod; 17. pressing a plate; 18. a spring; 19. and (4) a latex seal ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
A two-way circulation electromagnetic valve, as shown in figure 1, comprises a valve seat 1, an air inlet pipe 2, an air outlet pipe 3 and a valve component, wherein the outer surface of one side of the valve seat 1 is provided with pipeline interfaces close to the lower end position and the outer surface of the lower end, the air inlet pipe 2 is arranged on the pipeline interface of the outer surface of one side of the valve seat 1, the air outlet pipe 3 is arranged on the pipeline interface of the outer surface of the lower end of the valve seat 1, the valve component is arranged on the outer surface of the upper end of the valve seat 1, the valve component comprises an outer cover 4, an end enclosure 5, an iron core 6, a piston 8 and a steel ball 9, the end enclosure 5 is fixedly arranged at the top end position of the inner surface of the outer cover 4, the iron core 6 is movably arranged on the inner surface of the outer cover 4, the piston, the interior of the piston 8 is provided with a pressure balancing device.
As shown in fig. 1 and 2, the pressure balancing device includes a cavity 11, a valve core 12 and an air inlet 13, the cavity 11 is provided in the middle of the interior of the piston 8, the valve core 12 is movably installed in the cavity 11, and the air inlet 13 is provided on the outer surface of the piston 8.
When the medium flows reversely, the pressure of the air outlet pipe 3 is higher than that of the air inlet pipe 2, the pressure pushes the valve core 12 upwards to force the valve core 12 and the middle hole of the piston 8 to be sealed, and the medium cannot flow to the steel ball 9, so that the medium can only push the piston 8 open, the medium flows to the air outlet pipe 3 from the air outlet pipe 3, meanwhile, the pressure of the air outlet pipe 3 enters the valve cavity above the piston 8 through the air inlet 13 on the piston 8, the pressure of the upper valve cavity is increased and reaches pressure balance, the piston 8 is kept still in the whole reverse process, and no noise is generated when.
As shown in fig. 1 and 2, through holes are formed in the piston 8 at the upper end of the cavity 11 and the lower end of the cavity 11, and the diameter of the valve core 12 is larger than that of the through holes.
As shown in fig. 1 and 2, a valve chamber is provided between the piston 8 and the core 6, and the upper end of the intake port 13 is connected to the valve chamber.
As shown in fig. 1 and 2, the outer surface of the lower end of the piston 8 is provided with a groove, and a retainer ring 14 is riveted inside the groove.
As shown in fig. 1, fig. 3 and fig. 4, the outer side of the lower end surface of the end socket 5 located in the return spring 10 is provided with a plurality of sets of auxiliary devices, each auxiliary device comprises a decompression cylinder 15, a piston rod 16, a pressing plate 17 and a spring 18, the spring 18 is fixedly installed on the outer end surface of the decompression cylinder 15, the upper end of the piston rod 16 penetrates through the inner surface of the decompression cylinder 15 and is movably installed on the spring 18, the lower end of the piston rod 16 is fixedly installed at the middle position of the outer end surface of the pressing plate 17, an annular decompression groove is formed in the outer surface of the decompression cylinder 15, a latex sealing ring 19 is fixedly installed on the inner surface of the annular decompression groove close to the outer side position, a plurality of sets of.
Through the arrangement of a plurality of groups of auxiliary devices, when the air pressure is increased instantly to impact the piston 8, when the piston 8 is stressed too much, the whole iron core 6 is driven to move upwards, the return spring 10 deforms firstly, the iron core 6 contacts with the pressing plate 17 on the auxiliary device after deformation occurs, the pressing plate 17 extrudes the piston rod 16, the piston rod 16 extrudes the gas in the decompression cylinder 15, the gas in the decompression cylinder 15 can quickly enter the latex sealing ring 19 through the air hole, the kinetic energy generated by gas impact can be consumed by the heat generated by friction with the inner surface of the rubber gasket in the process that the gas enters the latex sealing ring 19, the iron core 6 is supported by combining the elasticity of the spring 18, the situation that the return spring 10 exceeds the elastic deformation of the return spring 10 to damage the return spring 10 is avoided, the service life of the electromagnetic valve is prolonged, and the structure of the whole bidirectional, convenient operation, satisfies people's operation requirement, comparatively practical.
As shown in fig. 1 and 2, the upper end of the steel ball 9 is connected to the bottom end of the core hole 7 in the core 6, and the lower end of the steel ball 9 is connected to the through hole in the piston 8.
It should be noted that, the utility model relates to a two-way circulation solenoid valve, when in use, the medium can flow to the outlet pipe 3 through the inlet pipe 2 of the solenoid valve, and also can flow reversely, and flows from the outlet pipe 3 to the inlet pipe 2, and the two-way circulation of the solenoid valve is the prior art;
when the medium reversely flows, the pressure of the air outlet pipe 3 is higher than that of the air inlet pipe 2, the pressure pushes the valve core 12 upwards to force the valve core 12 and the middle hole of the piston 8 to be sealed, and the medium cannot flow to the steel ball 9, so that the medium can only push the piston 8 open, the medium flows to the air outlet pipe 3 from the air outlet pipe 3, meanwhile, the pressure of the air outlet pipe 3 enters the valve cavity above the piston 8 through the air inlet 13 on the piston 8, the pressure of the upper valve cavity is increased and reaches pressure balance, the piston 8 is kept still in the whole reverse process, and no noise is generated when;
through the arrangement of a plurality of groups of auxiliary devices, when the air pressure is increased instantly to impact the piston 8, when the piston 8 is stressed too much, the whole iron core 6 is driven to move upwards, the return spring 10 deforms firstly, the iron core 6 contacts with the pressing plate 17 on the auxiliary device after deformation occurs, the pressing plate 17 extrudes the piston rod 16, the piston rod 16 extrudes the gas in the decompression cylinder 15, the gas in the decompression cylinder 15 can quickly enter the latex sealing ring 19 through the air hole, the kinetic energy generated by gas impact can be consumed by the heat generated by friction with the inner surface of the rubber gasket in the process that the gas enters the latex sealing ring 19, the iron core 6 is supported by combining the elasticity of the spring 18, the situation that the return spring 10 exceeds the elastic deformation of the return spring 10 to damage the return spring 10 is avoided, the service life of the electromagnetic valve is prolonged, the structure of the whole bidirectional circulation electromagnetic valve, the use requirement of people is satisfied, and is comparatively practical.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a two-way circulation solenoid valve, includes disk seat (1), intake pipe (2), outlet duct (3) and valve member, the pipeline interface has all been seted up near lower extreme position and lower extreme surface to one side surface of disk seat (1), intake pipe (2) are installed on the pipeline interface of disk seat (1) one side surface, install on the pipeline interface of the lower extreme surface of disk seat (1) outlet duct (3), the upper end surface at disk seat (1), characterized by are installed to the valve member: the valve component comprises an outer cover (4), a seal head (5), an iron core (6), a piston (8) and a steel ball (9), wherein the seal head (5) is fixedly installed at the top end of the inner surface of the outer cover (4), the iron core (6) is movably installed on the inner surface of the outer cover (4), the piston (8) is fixedly installed on the outer surface of the lower end of the iron core (6), an iron core hole (7) is formed in the iron core (6), a return spring (10) is fixedly installed at the upper end of the inner surface of the iron core hole (7), the steel ball (9) is arranged between the iron core (6) and the piston (8), and a pressure balance device is arranged inside the piston (8).
2. A bi-directional flow-through solenoid valve as claimed in claim 1, wherein: the pressure balancing device comprises a cavity (11), a valve core (12) and an air inlet (13), wherein the cavity (11) is arranged in the middle of the interior of the piston (8), the valve core (12) is movably arranged in the cavity (11), and the air inlet (13) is arranged on the outer surface of the piston (8).
3. A bi-directional flow-through solenoid valve as claimed in claim 2, wherein: through holes are formed in the inner portion of the piston (8) and located at the upper end of the cavity (11) and the lower end of the cavity (11), and the diameter of the valve core (12) is larger than that of the through holes.
4. A bi-directional flow-through solenoid valve as claimed in claim 2, wherein: a valve cavity is arranged between the piston (8) and the iron core (6), and the upper end of the air inlet (13) is connected with the valve cavity.
5. A bi-directional flow-through solenoid valve as claimed in claim 1, wherein: the outer surface of the lower end of the piston (8) is provided with a groove, and a check ring (14) is riveted inside the groove.
6. A bi-directional flow-through solenoid valve as claimed in claim 1, wherein: the outside that the lower extreme surface of head (5) is located answer spring (10) is provided with a plurality of sets of auxiliary device, auxiliary device includes decompression section of thick bamboo (15), piston rod (16), clamp plate (17) and spring (18), spring (18) fixed mounting is at the lower extreme surface of decompression section of thick bamboo (15), the upper end of piston rod (16) is passed spring (18) movable mounting and is being in the internal surface of decompression section of thick bamboo (15), the lower extreme fixed mounting of piston rod (16) is in the upper end surface intermediate position of clamp plate (17), annular decompression groove has been seted up to the surface of decompression section of thick bamboo (15), the internal surface in annular decompression groove is close to outside position fixed mounting and has latex sealing washer (19), a plurality of sets of gas pockets have been seted up to the interior bottom surface in annular decompression groove, and the internal surface in a plurality of sets of.
7. A bi-directional flow-through solenoid valve as claimed in claim 3, wherein: the upper end of the steel ball (9) is connected with the bottom end of an iron core hole (7) in the iron core (6), and the lower end of the steel ball (9) is connected with a through hole in the piston (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021378571.6U CN212509546U (en) | 2020-07-14 | 2020-07-14 | Two-way circulation solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021378571.6U CN212509546U (en) | 2020-07-14 | 2020-07-14 | Two-way circulation solenoid valve |
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| CN212509546U true CN212509546U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021378571.6U Active CN212509546U (en) | 2020-07-14 | 2020-07-14 | Two-way circulation solenoid valve |
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| CN (1) | CN212509546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623907A (en) * | 2021-07-14 | 2021-11-09 | 广州巴兰仕机械有限公司 | Air conditioner refrigerant recovery and charging system and control method thereof |
-
2020
- 2020-07-14 CN CN202021378571.6U patent/CN212509546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623907A (en) * | 2021-07-14 | 2021-11-09 | 广州巴兰仕机械有限公司 | Air conditioner refrigerant recovery and charging system and control method thereof |
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