CN214789312U - Straight-through electric control valve - Google Patents
Straight-through electric control valve Download PDFInfo
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- CN214789312U CN214789312U CN202120123868.6U CN202120123868U CN214789312U CN 214789312 U CN214789312 U CN 214789312U CN 202120123868 U CN202120123868 U CN 202120123868U CN 214789312 U CN214789312 U CN 214789312U
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Abstract
The utility model discloses a straight-through electric control valve, belonging to the technical field of electric control valve structure design, comprising a valve body, a valve core, a piston, a reset spring, a side cover and an O-shaped sealing ring; the electromagnetic valve is arranged on the upper part of the valve body, a first passage and a second passage are arranged in the valve body, and the first passage and the second passage respectively correspond to the electromagnetic valve channel; the valve body comprises an air outlet, a cavity and an air inlet, wherein a side cover is arranged at the air inlet, the end part of the side cover extends into the cavity, and the side cover is in threaded connection with the valve body; a piston and a valve core are arranged in the cavity, one end of the piston is communicated with an opening of the side cover, a return spring is arranged in the inner cavity of the piston, a third passage is arranged on the side cover, and the third passage is communicated with the first passage; the other end of the piston is provided with a valve core, the outer surface of the valve core and the inner surface of the valve body are provided with a pushing cavity, and the pushing cavity is communicated with the second passage. The utility model discloses simple structure, the practicality is strong, and has better gas tightness.
Description
Technical Field
The utility model relates to an automatically controlled valve structural design technical field, concretely relates to through automatically controlled valve.
Background
The vacuum electromagnetic valve is a special valve installed on the mechanical vacuum pump, the valve and the pump are connected on the same power supply, and the opening and the closing of the valve are directly controlled by the opening and the stopping of the pump. When the pump stops working or the power supply is suddenly interrupted, the valve can automatically close the vacuum system, and atmosphere is filled into the pump cavity through the air inlet of the pump, so that the pump oil is prevented from flowing back to pollute the vacuum system. The valve core of the vacuum electromagnetic valve is a stainless steel piston type, and a coil is specially manufactured, so that the valve core is not easy to burn; the coil starts the valve core and pulls the piston at the same time, the installation direction of the valve body is unlimited, the sealing performance is good, and zero leakage exists.
However, the existing valve generally has poor sealing performance, poor piston reversing sensitivity and large occupied space, and is difficult to be applied to equipment with high sealing performance requirement and small size, so that the sealing performance and the piston reversing sensitivity of the electric control valve must be improved, and the occupied space of the electric control valve is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a through electric control valve to solve the relevant technical problem that exists among the prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model discloses a straight-through electric control valve, which comprises a valve body, a valve core, a piston, a reset spring and a side cover; the electromagnetic valve is arranged on the upper part of the valve body, a first passage and a second passage are arranged in the valve body, and the first passage and the second passage respectively correspond to a valve channel of the electromagnetic valve;
the valve body comprises an air outlet, a cavity and an air inlet, wherein a side cover is arranged at the air inlet, the end part of the side cover extends into the cavity and is in threaded connection with the valve body, a first groove is formed in the outer part of the side cover, a first O-shaped sealing ring is arranged in the first groove and abuts against the inner wall of the valve body, a side cover opening is formed in the side cover and is communicated with the cavity;
a piston and a valve core are arranged in the cavity, one end of the piston is communicated with the side cover opening, a return spring is arranged in the piston cavity, one end of the return spring is abutted against the end part of the piston cavity, and the other end of the return spring is abutted against the end part of the side cover opening; a third passage is arranged on the side cover and communicated with the first passage, a sixth groove is arranged at the end part of the side cover, a sixth O-shaped sealing ring is arranged in the sixth groove, and the sixth O-shaped sealing ring is abutted against the outside of the piston; a second groove is formed in the outer portion of the piston, a piston ring is arranged in the second groove, and the piston ring abuts against the inner wall of the valve body;
the other end of the piston is provided with a valve core, the outer surface of the valve core and the inner surface of the valve body are provided with a pushing cavity, and the pushing cavity is communicated with the second passage; the valve core is provided with a circulation hole, and the other end of the valve core is communicated with the air outlet.
Furthermore, the outer portion of the air outlet is cylindrical, an annular inclined plane is arranged at the position of a contact surface of the air outlet and the valve core, the end portion of the valve core can extend into the air outlet of the valve body, a third groove is formed in the rear portion of the end portion of the valve core, a third O-shaped sealing ring is arranged in the third groove, and the third O-shaped sealing ring can abut against the annular inclined plane on the valve body.
Furthermore, two fourth grooves are formed in the valve core, fourth O-shaped sealing rings are arranged in the fourth grooves, and the fourth O-shaped sealing rings are abutted to the inner wall of the valve body.
Further, the valve core and the piston are integrally formed.
Furthermore, a fifth O-shaped sealing ring is arranged at the threaded connection part of the side cover and the valve body.
Further, the piston ring is of a V-shaped structure in section.
Furthermore, the inner wall of the side cover is provided with internal threads, and the periphery of the air outlet of the valve body is provided with external threads.
Furthermore, the wiring mode of the electromagnetic valve adopts a quick port plugging mode.
The utility model has the advantages of as follows:
the utility model controls the on-off of the gas on the first passage, the second passage and the third passage by controlling the opening and closing of the electromagnetic valve, and realizes the control of whether the gas enters into the pushing cavity, thereby realizing the on-off of the electric control valve; the structure that adopts case and piston integrated into one piece has realized the gas flow direction of through type, and solenoid valve wiring mode adopts quick port plug mode, can reduce the occupation space of automatically controlled valve and make the operation more simple and convenient. When the power is cut off, the valve core and the piston are reset by adopting the thrust of the reset spring and the gas of the gas inlet, so that the reversing sensitivity and the sealing performance of the electric control valve are ensured. Grooves and O-shaped sealing rings are arranged at a plurality of positions on the valve body, the valve core and the piston, inclined planes are arranged, and the air tightness of the electric control valve is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a perspective view of a straight-through electric control valve provided in an embodiment of the present invention;
fig. 2 is a front sectional view of a straight-through electric control valve provided in an embodiment of the present invention;
in the figure: the valve comprises a valve body 1, a valve core 2, a piston 3, a return spring 4, a side cover 5, a solenoid valve 6, a first passage 7, a second passage 8, an air outlet 9, a cavity 10, an air inlet 11, a first groove 12, a first O-shaped sealing ring 13, a side cover opening 14, a flow hole 15, a third passage 16, a second groove 17, a piston ring 18, a pushing cavity 19, a third groove 20, a third O-shaped sealing ring 21, a slope 22, a fourth groove 23, a fourth O-shaped sealing ring 24, a fifth O-shaped sealing ring 25, a quick port 26, a sixth groove 27 and a sixth O-shaped sealing ring 28.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, the utility model discloses a straight-through electric control valve, which comprises a valve body 1, a valve core 2, a piston 3, a return spring 4 and a side cover 5; the solenoid valve 6 is located on the upper portion of the valve body 1, a first passage 7 and a second passage 8 are arranged inside the valve body 1, and the first passage 7 and the second passage 8 correspond to valve passages of the solenoid valve 6 respectively. When energized, the solenoid valve 6 valve passage opens allowing communication between the first passage 7 and the second passage 8, and gas may pass from the first passage 7 through the solenoid valve 6 valve passage to the second passage 8.
A piston 3 and a valve core 2 are arranged in the cavity 10, one end of the piston 3 is communicated with a side cover opening 14, an inner cavity of the piston 3 is provided with a return spring 4, one end of the return spring 4 is abutted against the end part of the inner cavity of the piston 3, and the other end of the return spring 4 is abutted against the end part of the side cover opening 14; the return spring 4 is used for returning the piston 3, and the piston 3 moves towards the side cover opening 14 under the action of external force gas, so that the return spring 4 is compressed; when the external force gas disappears, the return spring 4 can rebound and restore to the original state, so as to drive the piston 3 to move towards the gas outlet 9. In order to increase the sealing performance between the piston 3 and the side cover 5, a sixth groove 27 is arranged below the end part of the side cover 5, and a sixth O-shaped sealing ring 28 is arranged in the sixth groove 27.
When the gas enters the third passage 16 through the side cover opening 14 in order to pass through the closing of the electromagnetic valve 6 and whether the gas works through the control electric control valve, and the third passage 16 is communicated with the first passage 7; when the solenoid valve 6 is open, gas may pass from the first passage 7 through the solenoid valve 6 into the second passage 8. In order to further ensure the tightness of the interior of the cavity 10, a second groove 17 is formed outside the piston 3, a piston ring 18 is arranged in the second groove 17, the section of the piston ring 18 is of a V-shaped structure, and the piston ring 18 is abutted against the inner wall of the valve body 1, so that the tightness of the interior of the cavity 10 can be further ensured.
The other end of the piston 3 is provided with a valve core 2, the outer surface of the valve core 2 and the inner surface of the valve body 1 are provided with a pushing cavity 19, the pushing cavity 19 is communicated with the second passage 8, the valve core 2 is provided with a circulation hole 15, and the other end of the valve core 2 is communicated with the air outlet 9. When the electromagnetic valve 6 is opened, gas enters the second passage 8 from the first passage 7 through the electromagnetic valve 6 and then enters the pushing cavity 19, the gas pushes the piston 3 to move towards the gas inlet 11 in the pushing cavity 19, the return spring in the piston 3 deforms immediately, and therefore the gas reaches the gas outlet 9 through the valve core 2, and the gas enters the inner cavities of the piston 3 and the valve core 2 from the side cover opening 14 and then reaches the gas outlet 9 through the circulation hole 15.
According to a specific embodiment of the present invention, the gas outlet 9 is cylindrical, and the outer surface thereof can be provided with a screw thread for facilitating connection with other components; in order to enable the valve core 2 and the valve body 1 to have good sealing at the air outlet 9, a section of inclined plane 22 is arranged at the contact surface of the air outlet 9 and the valve core 2, the end part of the valve core 2 can extend into the air outlet 9 of the valve body 1, a third groove 20 is arranged behind the end part of the valve core 2, a third O-shaped sealing ring 21 is arranged in the third groove 20, the third O-shaped sealing ring 21 can be abutted against the annular inclined plane 22 on the valve body 1, the third O-shaped sealing ring 21 is added, the third O-shaped sealing ring 21 can be enabled to be in complete contact with the inclined plane 22, and the air tightness is enhanced. In order to further enhance the sealing performance, 2 fourth grooves 23 are formed in the outer portion of the valve core 2, fourth O-ring seals 24 are respectively arranged in the 2 fourth grooves 23, the fourth O-ring seals 24 can enhance the contact between the outer portion of the valve core 2 and the inner portion of the valve body 1, and gas is difficult to reach the gas outlet 9 through the fourth O-ring seals 24, so that the valve core has better tightness.
According to the utility model provides a specific embodiment, traditional automatically controlled valve case 2 and piston 3 are two independent devices, but its gas tightness is relatively poor, consequently the utility model discloses well case 2 and piston 3 integrated into one piece strengthen its gas tightness on the one hand, and on the other hand makes it more durable. When gas enters the pushing cavity 19, the gas can push the piston 3 to move towards the gas inlet 11 in the pushing cavity 19, the valve core 2 and the piston 3 are integrally formed, the valve core 2 and the piston 3 move towards the gas inlet 11 together, and the return spring in the piston 3 deforms immediately, so that the gas reaches the gas outlet 9 through the valve core 2. When the electromagnetic valve 6 is closed, gas cannot enter the second channel 8 and the pushing cavity 19 from the valve channel of the electromagnetic valve 6, and at this time, the return spring 4 rebounds and restores to the original state, and drives the valve core 2 and the piston 3 to move towards the gas outlet 9 until the third O-shaped sealing ring 21 abuts against the inclined surface 22.
According to the utility model provides a concrete embodiment, 6 wiring modes of solenoid valve adopt 26 plug modes of quick port, and the customer only need the plug wire on quick port 26, can accomplish the plug wire, just the utility model discloses a quick port 26 has two kinds of plug wire modes of violently erecting to supply the customer to select.
The utility model discloses use as follows:
when the electric control valve is not electrified, the valve passage of the electromagnetic valve 6 is closed, when the electric control valve is electrified, the valve of the electromagnetic valve 6 is opened, gas enters the third passage 16 from the side cover opening 14, enters the first passage 7 along the third passage 16, passes through the valve passage of the electromagnetic valve 6 in the first passage 7 to reach the second passage 8, enters the pushing cavity 19, generates a gas pressure difference due to the existence of the gas in the pushing cavity 19, pushes the valve core 2 and the piston 3 to move towards the gas inlet 11 together, and the return spring 4 in the piston 3 generates compression deformation immediately, so that the gas can reach the cavity 10 through the through hole 15 on the valve core 2 and then reach the gas outlet 9, and the gas can pass through.
When the electromagnetic valve 6 is closed, gas cannot enter the second channel 8 and the pushing cavity 19 from the valve channel of the electromagnetic valve 6, at this time, the return spring 4 can rebound and restore to the original state, the valve core 2 and the piston 3 are driven to move towards the gas outlet 9 until the third O-shaped sealing ring 21 abuts against the inclined surface 22, and since the gas cannot reach the pushing cavity 19, the gas can only move towards the gas outlet 9 along the inner parts of the valve core 2 and the piston 3, so that the gas can generate thrust on the end part of the valve core 2, the third O-shaped sealing ring 21 is closer to the inclined surface 22, the thrust can be increased along with the increase of the gas pressure, and the sealing performance is enhanced.
The utility model discloses a switching of control solenoid valve 6 comes the gaseous break-make of control to realize the break-make of automatically controlled valve, adopt case 2 and 3 integrated into one piece's of piston structure, 6 wiring modes of solenoid valve adopt 26 plug modes of quick port, can reduce the occupation space of automatically controlled valve. When the power is off, the valve core 2 and the piston 3 are reset by adopting the thrust of the reset spring 4 and the gas of the gas inlet, so that the reversing sensitivity of the electric control valve is ensured. The valve body 1, the valve core 2 and the piston 3 are provided with a plurality of concave grooves and O-shaped sealing rings, and are provided with inclined planes 22, so that the air tightness of the electric control valve is improved.
The gas enters the second passage 8 from the first passage 7 through the electromagnetic valve 6 and then enters the pushing cavity 19, the gas can push the piston 3 to move towards the gas inlet 11 in the pushing cavity 19, the return spring in the piston 3 deforms immediately, so that the gas passes through the through hole 15 in the valve core 2 and reaches the gas outlet 9, and the gas enters the valve body 1 from the side cover opening 14 and then flows out from the gas outlet 9.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A straight-through electric control valve is controlled by an externally connected electromagnetic valve and is characterized by comprising a valve body, a valve core, a piston, a return spring and a side cover; the electromagnetic valve is arranged on the upper part of the valve body, a first passage and a second passage are arranged in the valve body, and the first passage and the second passage respectively correspond to the valve channel of the electromagnetic valve;
the valve body comprises an air outlet, a cavity and an air inlet, wherein a side cover is arranged at the air inlet, the end part of the side cover extends into the cavity, the side cover is in threaded connection with the valve body, a first groove is formed in the outer part of the side cover, a first O-shaped sealing ring is arranged in the first groove and abuts against the inner wall of the valve body, a side cover opening is formed in the side cover, and the side cover opening is communicated with the cavity;
a piston and a valve core are arranged in the cavity, one end of the piston is communicated with the side cover opening, a return spring is arranged in the inner cavity of the piston, one end of the return spring abuts against the end part of the inner cavity of the piston, and the other end of the return spring abuts against the end part of the side cover opening; a third passage is arranged on the side cover and communicated with the first passage, a sixth groove is arranged at the end part of the side cover, a sixth O-shaped sealing ring is arranged in the sixth groove, and the sixth O-shaped sealing ring is abutted against the outer part of the piston; a second groove is formed in the outer portion of the piston, a piston ring is arranged in the second groove, and the piston ring abuts against the inner wall of the valve body;
the other end of the piston is provided with the valve core, the outer surface of the valve core and the inner surface of the valve body are provided with a pushing cavity, and the pushing cavity is communicated with the second passage; the valve core is provided with a circulation hole, and the other end of the valve core is communicated with the air outlet.
2. A flow-through electrically controlled valve according to claim 1, wherein the outlet is cylindrical, an annular inclined surface is provided at a contact surface between the outlet and the valve element, an end of the valve element extends into the outlet of the valve body, a third groove is provided behind the end of the valve element, a third O-ring is provided in the third groove, and the third O-ring abuts against the annular inclined surface of the valve body.
3. A flow-through electrically controlled valve according to claim 2, wherein said spool has two fourth grooves, and each of said fourth grooves has a fourth O-ring therein, said fourth O-rings abutting against the inner wall of said valve body.
4. A through electrically controlled valve according to claim 3, wherein said spool and said piston are integrally formed.
5. An electrically controlled valve of the through type according to claim 4 wherein the threaded connection of said side cover to said valve body is provided with a fifth O-ring seal.
6. An electrically controlled valve of the through type according to claim 5 wherein said piston ring is of a V-shaped configuration in cross section.
7. An electrically controlled valve of the straight-through type according to claim 6, wherein the inner wall of said side cover is provided with an internal thread, and the outer periphery of the air outlet of said valve body is provided with an external thread.
8. A through electric control valve as claimed in claim 7, wherein the solenoid valve is wired by a quick port plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123868.6U CN214789312U (en) | 2021-01-18 | 2021-01-18 | Straight-through electric control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123868.6U CN214789312U (en) | 2021-01-18 | 2021-01-18 | Straight-through electric control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789312U true CN214789312U (en) | 2021-11-19 |
Family
ID=78747737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120123868.6U Active CN214789312U (en) | 2021-01-18 | 2021-01-18 | Straight-through electric control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789312U (en) |
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2021
- 2021-01-18 CN CN202120123868.6U patent/CN214789312U/en active Active
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