CN210566560U - Pilot-level proportional electromagnetic valve and valve body - Google Patents
Pilot-level proportional electromagnetic valve and valve body Download PDFInfo
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- CN210566560U CN210566560U CN201920845741.8U CN201920845741U CN210566560U CN 210566560 U CN210566560 U CN 210566560U CN 201920845741 U CN201920845741 U CN 201920845741U CN 210566560 U CN210566560 U CN 210566560U
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Abstract
The utility model discloses a pilot-level proportional solenoid valve and a valve body, wherein the pilot-level proportional solenoid valve comprises an electromagnetic component, an adjusting component and a pilot valve module, and the electromagnetic component provides power for the adjusting component through the principle of electromagnetic induction; the adjusting component is used for controlling the volume of an internal cavity of the pilot valve module; the pilot valve module realizes the performance control of the valve body main valve based on the volume change of the internal cavity. The adjusting component comprises a movable shaft, a fixed shaft and a push rod, and the movable shaft and the push rod are connected through threads; the fixed shaft is fixedly connected with the pilot valve module; the moving shaft moves towards the fixed shaft direction under the action of the electromagnetic component, and drives the push rod to slide in the fixed shaft, so that the control of the volume of the internal cavity of the pilot valve module is realized. A valve body comprises the pilot-stage proportional solenoid valve. The utility model discloses can realize the accurate control to control pressure according to the current value, solenoid valve performance curve is adjustable, has simple structure, low cost's characteristics.
Description
Technical Field
The utility model relates to a solenoid valve field, more specifically relates to a guide's level proportion solenoid valve and valve body.
Background
The conventional proportional solenoid valve directly controls a main valve core through an electromagnet, and the output magnetic force is different according to different input currents, so that the opening of the main valve is controlled, and proportional control is realized. The control mode is simple and direct, but has lower precision, and is not suitable for occasions with high pressure, large flow and high precision.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes above-mentioned prior art is not enough, provides a guide's level proportion solenoid valve and valve body. The utility model discloses can realize the accurate control to pressure according to the current value, solenoid valve performance curve is adjustable, has simple structure, low cost's characteristics.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a pilot-stage proportional electromagnetic valve for regulating the performance of main valve of valve body is composed of electromagnet module and pilot valve module,
the electromagnet module is used for controlling the volume of an internal cavity of the pilot valve module;
the pilot valve module realizes the performance control of the valve body main valve based on the volume change of the internal cavity.
In a preferred scheme, the electromagnet module comprises an electromagnetic component and an adjusting component, wherein the electromagnetic component is connected with the adjusting component, and the electromagnetic component provides power for the adjusting component through the principle of electromagnetic induction.
In a preferred scheme, the adjusting component comprises a movable shaft 7, a fixed shaft 8 and a push rod 17, wherein,
the moving shaft 7 is connected with the push rod 17 through threads;
the fixed shaft 8 is fixedly connected with the pilot valve module;
the moving shaft 7 moves towards the fixed shaft 8 under the action of the electromagnetic component to drive the push rod 17 to slide in the fixed shaft 8, so that the volume of the internal cavity of the pilot valve module is controlled;
the top of the fixed shaft 8 is concave, and an oblique angle is arranged on the outer side of the concave.
In the preferred scheme, the position of the movable shaft 7 on the push rod 17 can be adjusted through the threaded connection between the movable shaft 7 and the push rod 17, so that the performance curve of the electromagnetic valve can be dynamically controlled.
In a preferred scheme, the adjusting part further comprises an adjusting nut 1, the adjusting nut 1 and the push rod 17 are connected through threads, and the adjusting nut 1 is used for adjusting the initial position of the push rod 17.
In a preferable scheme, the adjusting part further comprises a limiting ring 2, the limiting ring (2) is arranged at the top end of the push rod (17), and the limiting ring 2 is used for limiting the initial position of the push rod 17.
In a preferred scheme, the adjusting component further comprises a shaft sleeve 4, the shaft sleeve 4 is arranged at the bottom end of the push rod 17, and the shaft sleeve 4 is used for reducing the sliding friction force of the push rod 17.
In a preferred scheme, the electromagnetic component comprises a magnetic conduction bracket 5 and a coil assembly 6, wherein,
the coil assembly 6 is used for providing a magnetic field, and the magnetic conductive support 5 is driven by the magnetic field of the coil assembly 6 to move towards the fixed shaft 8.
In a preferred embodiment, the pilot valve module comprises an upper valve body 10, a lower valve body 11, a spring and diaphragm assembly 12, wherein,
the upper valve body 10 and the lower valve body 11 are arranged opposite to each other, and a diaphragm assembly 12 is arranged between the upper valve body 10 and the lower valve body 11;
the interior of the upper valve body 10 and the diaphragm assembly 12 form a first cavity, a push rod 17 sliding through hole is formed in the top of the upper valve body 10, and the bottom end of the push rod 17 is connected with a spring in the first cavity;
the spring enables the push rod 17 to slide towards the opposite direction of the fixed shaft 8 under the condition that the electromagnet module does not work, so that the reset of the push rod 17 is realized;
the interior of the lower valve body 11 and the diaphragm assembly 12 form a second cavity, a third cavity is further arranged in the lower valve body 11, the second cavity and the third cavity are connected with each other and are in reaction with each other;
the second cavity realizes the control of the volume of the second cavity based on the sliding condition of the push rod 17 of the first cavity;
the third cavity realizes the control of the volume of the first cavity based on the volume change condition of the second cavity, thereby realizing the performance adjustment of the main valve of the valve body.
The utility model provides a valve body, the valve body be provided with air inlet and gas outlet, the valve body still include the stop valve, the stop valve be used for controlling the gas circulation situation of air inlet.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses can realize the accurate control to control pressure according to the current value, solenoid valve performance curve is adjustable, has simple structure, low cost's characteristics.
Drawings
FIG. 1 is a structural view of example 1.
FIG. 2 is a gas flow diagram of example 1.
FIG. 3 is an exploded view of embodiment 1.
Fig. 4 is a diagram of the exterior packaging of example 1.
FIG. 5 is a structural view of embodiment 2.
Description of reference numerals: 1. adjusting the nut; 2. a limiting ring; 3. adjusting the nut; 4. a shaft sleeve; 5. a magnetic conductive bracket; 6. a coil assembly; 7. a moving shaft; 8. fixing a shaft; 9. a magnetic conductive plate; 10. an upper valve body; 11. a lower valve body; 12. a diaphragm assembly; 13. a shaft sleeve; 14. a seal ring; 15. a seal ring; 16. a copper sleeve; 17. a push rod; C. an air inlet; D. a cavity D; E. a cavity E; F. a cavity F; G. a cavity G; H. a main valve control chamber; I. a main valve; J. an air outlet; K. a pilot proportional valve; l, a stop valve.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 3, a pilot-stage proportional solenoid valve includes an electromagnetic component, an adjusting component and a pilot valve module,
the electromagnetic component provides power for the adjusting component through the principle of electromagnetic induction;
the adjusting component is used for controlling the volume of an internal cavity of the pilot valve module;
the pilot valve module realizes the performance control of the valve body main valve based on the volume change of the internal cavity.
The adjusting component comprises a moving shaft 7, a fixed shaft 8, a push rod 17, a copper sleeve 16, a sealing ring 15, a shaft sleeve 5 and a shaft sleeve 13;
the push rod 17 is made of stainless steel;
the moving shaft 7 is connected with the push rod 17 through threads;
a sealing ring 15 is sleeved outside the fixed shaft 8, and the sealing ring 15 is used for preventing gas leakage;
a shaft sleeve 13 is arranged in the fixed shaft 8, and the shaft sleeve 13 is used for reducing the sliding friction force of the push rod;
the moving shaft 7 moves towards the direction of the fixed shaft 8 under the action of the electromagnetic component to drive the push rod 17 to slide in the fixed shaft 8;
the fixed shaft 8, the push rod 17 and the moving shaft 7 are sleeved by a copper sleeve 16 for protection, a sealing ring 15 is arranged outside the copper sleeve 16, and the sealing ring 15 is used for preventing gas leakage;
a shaft sleeve 5 is arranged in the copper sleeve 16, and the shaft sleeve 5 is used for reducing the sliding friction force of the push rod;
one end of the copper sleeve 16 is fixedly connected with the pilot valve module, and the other end of the copper sleeve 16 is fixedly connected with the electromagnetic component.
Wherein, the electromagnetic component comprises a magnetic conduction bracket 5, a coil component 6 and a magnetic conduction plate 9,
the coil assembly 6 is sleeved on the copper sleeve 16, the coil assembly 6 is fixedly connected with the magnetic conduction bracket 5, and the magnetic conduction bracket 5 and the magnetic conduction plate 9 drive the movable shaft 7 to move towards the direction of the fixed shaft 8 based on the magnetic field of the coil assembly 6;
the top of magnetic conduction support 5 is provided with adjusting nut 1, adjusting nut 3 and spacing ring 2, and adjusting nut 1, adjusting nut 3 and spacing ring 2 cooperate and are used for adjusting the initial position of push rod.
Wherein, the pilot valve module comprises an upper valve body 10, a lower valve body 11, a diaphragm component 12 and a spring,
the upper valve body 10 and the lower valve body 11 are arranged opposite to each other, and a diaphragm assembly 12 is arranged between the upper valve body and the lower valve body;
the interior of the upper valve body 10 and the diaphragm assembly 12 form a first cavity, a push rod 17 sliding through hole is formed in the top of the upper valve body 10, and the bottom end of the push rod 17 is connected with a spring in the first cavity;
under the condition that the electromagnet module does not work, the spring enables the push rod 17 to slide towards the opposite direction of the fixed shaft, and the reset of the push rod 17 is realized;
the interior of the lower valve body 11 and the diaphragm assembly 12 form a second cavity which is defined as a branch B; a third cavity is also arranged in the lower valve body 11 and is defined as a branch A; the branch B and the branch A are connected with each other and are in reaction with each other;
the branch B realizes the control of the volume of the branch B based on the sliding condition of the push rod 17 of the first cavity;
the A branch realizes the control of the volume of the A branch based on the volume change condition of the B branch, thereby realizing the performance adjustment of the valve body main valve.
Working procedure of example 1:
as shown in figure 2, gas enters the valve body from the bottom of the embodiment 1 and is divided into two branches, namely a branch A and a branch B, wherein the branch A outputs pressure to a main valve control cavity, and the branch B is connected with a main valve outlet and directly exhausts. The air pressure of the branch A is controlled by adjusting the air pressure of the branch B, and the branch A is connected with the main valve control cavity to control the position of the main valve core and adjust the air outlet pressure of the main valve. The push rod 17 and the valve core are connected through a spring. After the electromagnet is electrified, the movable shaft 7 moves towards the fixed shaft 8 under the action of magnetic force to push the valve core to move. As the current increases, the magnetic force increases and the push rod 17 pushes the valve element further closed and the air pressure into branch a increases. On the contrary, the current is reduced, the magnetic force is reduced, the valve core is opened under the action of the spring, the air pressure entering the branch B is increased, and the air pressure entering the branch A is reduced. In the embodiment, the moving shaft 7 and the push rod 17 are provided with threads, so that the position of the moving shaft 7 on the push rod 17 can be adjusted, and the performance curve of the valve body can be adjusted.
Example 2
The embodiment 2 is expanded on the basis of the embodiment 1.
A valve body comprises a pilot-stage proportional electromagnetic valve K, a stop valve L and a main valve I in embodiment 1, and is further provided with an air inlet C and an air outlet D, the inner cavity of the valve body is divided into 5 parts which are respectively defined as a D cavity D, E, a E, F cavity F, G cavity G and a main valve control cavity H, and the stop valve L is used for controlling the gas circulation condition of the air inlet.
Working procedure of example 2:
s1: the air inlet C is ventilated, the stop valve L is closed, and the air is in the cavity D;
s2: the stop valve L is opened, and gas enters the cavity E;
s3: the cavity E is communicated with an air inlet branch of the pilot-stage proportional solenoid valve K, and air enters a main valve control cavity H and a cavity G through the air inlet branch and the branch A;
s4: along with the increase of the pressure of the G cavity G, the stress of the diaphragm is increased, the main valve core is pushed to move upwards, the main valve I is opened, and gas enters the F cavity F from the E cavity E and is discharged through the gas outlet J;
s5: the air pressure entering the branch A can be adjusted by controlling the current of the coil assembly 6, so that the pressure of the control cavity H of the main valve is controlled, the position of the main valve I is changed, and the purpose of flexibly adjusting the air pressure of the air outlet with high precision is achieved.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for example, in the embodiment 1, the moving shaft 7 and the push rod 17 are connected by screw threads, and may be connected by other means such as a groove or a socket instead of a screw thread. As long as the above connection can realize the positional movement of the moving shaft 7 on the push rod 17. The push rod 17 may be made of a plastic material, including but not limited to a metal material and a plastic material, besides a stainless steel material, which belongs to the protection scope of the present patent.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A pilot-stage proportional electromagnetic valve for regulating the performance of main valve of valve body is composed of electromagnet module and pilot valve module,
the electromagnet module is used for controlling the volume of an internal cavity of the pilot valve module;
the pilot valve module realizes the performance control of the valve body main valve based on the volume change of the internal cavity.
2. The pilot-stage proportional solenoid valve according to claim 1, wherein the solenoid module comprises an electromagnetic component and an adjustment component, and the electromagnetic component is connected with the adjustment component.
3. Pilot-stage proportional solenoid valve according to claim 2, characterized in that the adjusting means comprise a moving shaft (7), a fixed shaft (8), a push rod (17), wherein,
the moving shaft (7) is connected with the push rod (17) through threads;
the fixed shaft (8) is fixedly connected with the pilot valve module;
the moving shaft (7) moves towards the fixed shaft (8) under the action of the electromagnetic component to drive the push rod (17) to slide in the fixed shaft (8);
the top of the fixed shaft (8) is concave, and an oblique angle is arranged on the outer side of the concave.
4. The pilot-stage proportional solenoid valve according to claim 3, wherein the adjusting member further comprises an adjusting nut (1), and the adjusting nut (1) and the push rod (17) are connected by a screw thread.
5. The pilot-stage proportional solenoid valve according to claim 4, wherein the adjusting member further comprises a limit ring (2), and the limit ring (2) is disposed at the top end of the push rod (17).
6. The pilot-stage proportional solenoid valve according to any one of claims 3 to 5, wherein the adjusting member further comprises a bushing (4), and the bushing (4) is disposed at the bottom end of the push rod (17).
7. The pilot-stage proportional solenoid valve according to claim 6, wherein said electromagnetic components comprise a magnetically conductive support (5) and a coil assembly (6), wherein,
the magnetic conduction support (5) drives the moving shaft (7) to move towards the direction of the fixed shaft (8) based on the magnetic field of the coil assembly (6).
8. The pilot stage proportional solenoid valve according to any one of claims 1-5 or 7, wherein the pilot valve module comprises an upper valve body (10), a lower valve body (11), a spring and diaphragm assembly (12), wherein,
the upper valve body (10) and the lower valve body (11) are arranged oppositely, and a diaphragm assembly (12) is arranged between the upper valve body (10) and the lower valve body (11);
the inner part of the upper valve body (10) and the diaphragm assembly (12) form a first cavity, a push rod sliding through hole is formed in the top of the upper valve body (10), and the bottom end of the push rod (17) is connected with the spring in the first cavity;
the spring realizes the reset of the push rod (17) under the condition that the electromagnet module does not work;
the inside of lower valve body (11) and diaphragm subassembly (12) constitute the second cavity, and the inside of lower valve body (11) still is provided with the third cavity, second cavity and third cavity link to each other, and both are the reaction each other.
9. A valve body, characterized in that it comprises a pilot stage proportional solenoid valve according to any one of claims 1 to 5 or 7.
10. The valve body of claim 9, wherein the valve body is provided with an air inlet and an air outlet, and further comprising a stop valve for controlling the gas flow condition of the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845741.8U CN210566560U (en) | 2019-06-05 | 2019-06-05 | Pilot-level proportional electromagnetic valve and valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845741.8U CN210566560U (en) | 2019-06-05 | 2019-06-05 | Pilot-level proportional electromagnetic valve and valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566560U true CN210566560U (en) | 2020-05-19 |
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ID=70626690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920845741.8U Active CN210566560U (en) | 2019-06-05 | 2019-06-05 | Pilot-level proportional electromagnetic valve and valve body |
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| Country | Link |
|---|---|
| CN (1) | CN210566560U (en) |
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- 2019-06-05 CN CN201920845741.8U patent/CN210566560U/en active Active
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