CN212455714U - Pilot-operated type electromagnetic valve - Google Patents
Pilot-operated type electromagnetic valve Download PDFInfo
- Publication number
- CN212455714U CN212455714U CN202021009537.1U CN202021009537U CN212455714U CN 212455714 U CN212455714 U CN 212455714U CN 202021009537 U CN202021009537 U CN 202021009537U CN 212455714 U CN212455714 U CN 212455714U
- Authority
- CN
- China
- Prior art keywords
- valve
- water guide
- liquid inlet
- circular
- liquid outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fluid-Driven Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A pilot operated solenoid valve comprising: the main valve assembly comprises a circular valve plate, the circular valve plate is rotatably arranged inside the control cavity, a water guide body is arranged on the lower side of the circular valve plate and is positioned in the liquid inlet communicating port, a water guide part is arranged on the inner side of the water guide body, a spherical surface part is arranged on the outer side of the water guide body, when the main valve assembly is opened, the water guide part is positioned in the control cavity, the spherical surface part is in sliding connection with the spherical inner wall, and the lower end of the balance hole is communicated with the water guide part; the positioning assembly comprises a positioning rod and a transverse guide rail fixed to the bottom of the valve cover, a sliding block is arranged on the transverse guide rail, a reset spring is arranged between the sliding block and the valve body, one end of the positioning rod is hinged to the top of the circular valve plate, and the other end of the positioning rod is hinged to the sliding block. The utility model discloses have the volume of opening and shutting of great case, easily through large-traffic medium, it is little to the resistance of fluid.
Description
Technical Field
The utility model relates to a valve field especially relates to a guide's formula solenoid valve.
Background
Currently, a solenoid valve is used as one of valves that control the flow of fluid. The solenoid valve includes a valve element that opens and closes a flow path, and drives a movable element called a plunger driven by a solenoid, and the valve element is operated by this operation to control the opening and closing of the flow path. If the solenoid valves are classified according to the driving manner of the valve core, they can be classified into direct-acting solenoid valves and pilot-operated solenoid valves. A type in which the valve element of the main valve is directly coupled to the driving plunger is referred to as a "direct acting type", and a type in which the valve element of the main valve is driven by the pressure of fluid via the diaphragm and the piston and controlled is referred to as a "pilot type". The pilot type can reduce the electric power for operating the solenoid, and can be used for a refrigeration cycle of an automobile air conditioner, which is required to be small and light in weight.
In chinese patent No. CN201911329415.2, a pilot type electromagnetic valve is disclosed, which comprises: the valve comprises a valve body, a main valve component, a diaphragm, a valve cover, a positioning piece and a pilot component. The valve body is provided with a communication port; the communicating port is respectively communicated with the liquid inlet and the liquid outlet. The diaphragm is arranged on the top of the main valve component; the valve cover is covered on the top of the valve body, and the valve cover and the diaphragm are enclosed to form a control cavity; the pilot channel is respectively communicated with the control cavity and the liquid outlet. The positioning piece is fixed at the top of the main valve component, and the top surface of the positioning piece is used for limiting the displacement of the main valve component; the bottom surface of the positioning piece is used for pressing the diaphragm on the main valve assembly; the elastic member is used for resetting the main valve assembly. The pilot assembly is arranged on the valve cover and used for communicating or stopping the pilot channel; the control cavity is communicated with the liquid inlet hole; the diaphragm is used for being tightly attached to the inner wall of the valve cover and isolating the control cavity. According to the pilot-operated electromagnetic valve provided by the invention, the structure of the diaphragm can be kept stable, the service life is longer, but the moving quantity of the diaphragm is smaller, the opening and closing distance of the main valve component is too small, when a large-flow medium passes through, the resistance of the valve core to fluid is very large, the valve core is easy to wear, the channel of the valve body is tortuous, the flow speed of the fluid passing through the valve core is not high, and impurities in the fluid are easy to be retained in the control cavity, so that the pilot valve hole is blocked.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the problem that above-mentioned prior art exists, provide a guide's formula solenoid valve, have the volume of opening and shutting of great case, easily through large-traffic medium, it is little to the resistance of fluid, improves fluid through speed.
The utility model provides a technical scheme that its technical problem adopted: the pilot-operated electromagnetic valve comprises a valve body, a valve cover, a main valve component and a positioning component,
the valve body is provided with a liquid inlet at one side and a liquid outlet at the other side, a communicating opening is arranged in the valve body and comprises a liquid inlet communicating opening and a liquid outlet communicating opening, the liquid inlet communicating opening is communicated with the liquid inlet, and the liquid outlet communicating opening is communicated with the liquid outlet;
the valve cover is covered on the top of the valve body, the valve cover and the main valve component are enclosed to form a control cavity, the left part of the control cavity is a spherical inner wall, a pilot channel is arranged in the valve cover and the valve body, one end of the pilot channel is communicated with the liquid outlet, the other end of the pilot channel is communicated with the control cavity, an electromagnetic valve used for communicating or stopping the pilot channel is arranged on the upper part of the valve cover,
the main valve assembly comprises a circular valve plate, the circular valve plate is rotatably arranged inside the control cavity, a balance hole is formed in the circular valve plate, and the balance hole is communicated with the control cavity and the liquid inlet; a water guide body is arranged on the lower side of the circular valve plate and is positioned in the liquid inlet communicating port, a water guide part is arranged on the inner side of the water guide body, a spherical surface part is arranged on the outer side of the water guide body, when the main valve component is opened, the water guide part is positioned in the control cavity, the spherical surface part is in sliding connection with the spherical inner wall, and the lower end of the balance hole is communicated with the water guide part;
the positioning assembly comprises a positioning rod and a transverse guide rail fixed to the bottom of the valve cover, a sliding block is arranged on the transverse guide rail, a first reset spring is arranged between the sliding block and the valve body, one end of the positioning rod is hinged to the top of the circular valve plate, and the other end of the positioning rod is hinged to the sliding block.
Through the technical scheme, when the electromagnetic valve arranged outside the valve body is electrified, the pilot channel is communicated with the control cavity and the liquid outlet, high-pressure media in the control cavity are relieved through the pilot channel, low-high pressure difference is formed around the circular valve plate, the circular valve plate is pushed to be upwards turned under the action of the pressure difference, the liquid inlet communication port and the liquid outlet communication port are opened, fluid flowing into the liquid inlet reaches the liquid outlet through a bend formed by the water guide body and the circular valve plate, the pilot channel is closed during power failure, the positioning rod pushes the circular valve plate to reset under the action of the first reset spring, the valve port is closed, the pressure of the control cavity is increased, the fluid pressure is pressurized to the circular valve plate, and the sealing is.
In order to further improve the structure, the electromagnetic valve comprises a guide valve sleeve fixedly connected with the valve body, an electromagnet fixedly connected with the guide valve sleeve and a movable iron core arranged in the guide valve sleeve, a second reset spring is arranged between one end of the movable iron core and the electromagnet, a screw rod is arranged at one end of the movable iron core, and a piston used for communicating or stopping the guide channel is connected onto the screw rod.
Further perfect, the sealing washer is installed to circular valve plate periphery, and the sealing washer is laminated with spherical inner wall.
Further perfect, the liquid outlet intercommunication mouth is eccentric circle structure, and the inlet intercommunication mouth is arc notch structure, be equipped with transition baffle between inlet intercommunication mouth and the liquid outlet intercommunication mouth, circular valve plate downside is equipped with seal ring and the arc sealing layer that is used for shutoff liquid outlet intercommunication mouth and inlet intercommunication mouth respectively.
Further perfect, the valve cap bottom is equipped with the buffer block, cushions when opening the valve plate.
The utility model discloses profitable effect is: compared with the prior art, the main valve assembly of the utility model comprises a circular valve plate, the circular valve plate is rotatably arranged inside the control cavity, when the circular valve plate is opened, the area through which fluid can pass is large, and large-flow media can easily pass through, a water guide body is arranged at the lower side of the circular valve plate and is positioned in the liquid inlet communicating port, a water guide part is arranged at the inner side of the water guide body, a spherical surface part is arranged at the outer side of the water guide body, when the main valve assembly is opened, the water guide part is positioned in the control cavity, the spherical surface part is in sliding connection with the spherical inner wall, the fluid flowing in from the liquid inlet reaches the liquid outlet through a bend formed by the water guide body and the circular valve plate, the resistance of the main valve assembly to the fluid is small; the lower end of the balance hole is communicated with the water guide part, and the through hole at the lower end of the balance hole is large in area and not easy to block; main valve subassembly top is equipped with locating component, and locating component includes the locating lever and fixes the transverse guide in the valve bonnet bottom, be equipped with the slider on the transverse guide, be equipped with first reset spring between slider and the valve body, locating lever one end articulates the top of circular valve plate, the locating lever other end articulate in the slider drives circular valve plate through the locating lever and closes, and the locating lever is effectual to the location of circular valve plate, and when the spring was ageing, the sealed effect of circular valve plate was difficult to descend, and the valve body is difficult to interior hourglass.
Drawings
Fig. 1 is a schematic structural view of the open state of the present invention;
FIG. 2 is a schematic structural view of the closed state of the present invention;
FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 2;
description of reference numerals: 1. the valve comprises a valve body, 11, a liquid inlet, 12, a liquid outlet, 13, a communication port, 131, a liquid inlet communication port, 132, a liquid outlet communication port, 133, a transition partition plate, 14, a control cavity, 141, a spherical inner wall, 15, a pilot channel, 2, a main valve assembly, 21, a circular valve plate, 211, a balance port, 212, a sealing ring, 22, a water guide body, 221, a water guide part, 222, a spherical surface part, 23, a sealing gasket, 24, an arc-shaped sealing layer, 3, a valve cover, 31, a buffer block, 4, a positioning assembly, 41, a positioning rod, 42, a transverse guide rail, 43, a sliding block, 44, a first reset spring, 5, an electromagnetic valve, 51, a guide valve sleeve, 52, an electromagnet, 53, a movable iron core, 54, a screw rod, 55, a piston, 56.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
with reference to the accompanying drawings: in this embodiment, a pilot-operated solenoid valve includes:
a valve body 1, one side of which is provided with a liquid inlet 11 and the other side of which is provided with a liquid outlet 12, wherein a communication port 13 is arranged in the valve body 1, the communication port 13 comprises a liquid inlet communication port 131 and a liquid outlet communication port 132, the liquid inlet communication port 131 is communicated with the liquid inlet 11, and the liquid outlet communication port 132 is communicated with the liquid outlet 12;
the valve cover 3 covers the top of the valve body 1, the valve cover 3 and the main valve component 2 are enclosed to form a control cavity 14, the left part of the control cavity 14 is a spherical inner wall 141, a pilot channel 15 is arranged in the valve cover 3 and the valve body 1, one end of the pilot channel 15 is communicated with the liquid outlet 12, the other end of the pilot channel 15 is communicated with the control cavity 14, the upper part of the valve cover 3 is provided with an electromagnetic valve 5 for communicating or stopping the pilot channel 15,
the main valve component 2 comprises a circular valve plate 21, the circular valve plate 21 is rotatably arranged inside the control cavity 14, a balance hole 211 is formed in the circular valve plate 21, and the balance hole 211 is communicated with the control cavity 14 and the liquid inlet 11; a water guide body 22 is mounted on the lower side of the circular valve plate 21, the water guide body 22 is located in the liquid inlet communicating port 131, a water guide part 221 is arranged on the inner side of the water guide body 22, a spherical surface part 2222 is arranged on the outer side of the water guide body 22, when the main valve component 2 is opened, the water guide part 221 is located in the control cavity, the spherical surface part 222 is in sliding connection with the spherical inner wall 141, and the lower end of the balance hole 211 is communicated with the water guide part 221;
The working principle is as follows: when the electromagnetic valve 5 arranged outside the valve body 1 is energized, the pilot channel 15 is communicated with the control cavity 14 and the liquid outlet 12, a high-pressure medium in the control cavity 14 is relieved through the pilot channel 15, a pressure difference of high and low heights is formed around the circular valve plate 21, the circular valve plate 21 is pushed to be turned upwards by fluid pressure under the action of the pressure difference, the liquid inlet communication port 131 and the liquid outlet communication port 132 are opened, fluid flowing in from the liquid inlet 11 reaches the liquid outlet 12 through a curve formed by the water guide body 22 and the circular valve plate 21, when the power is off, the pilot channel 15 is closed, the circular valve plate 21 is pushed by the positioning rod 41 to be reset under the action of the first reset spring 44, the valve port is closed, the pressure of the control cavity 14 is increased, the fluid pressure.
The electromagnetic valve 5 comprises a guide valve sleeve 51 fixedly connected with the valve body 1, an electromagnet 52 fixedly connected with the guide valve sleeve 51 and a movable iron core 53 arranged in the guide valve sleeve 51, a second return spring 56 is arranged between one end of the movable iron core 53 and the electromagnet 52, one end of the movable iron core 53 is provided with a screw rod 54, and the screw rod 54 is connected with a piston 55 used for communicating or stopping the pilot channel 15. The periphery of the circular valve plate 21 is provided with a sealing ring 212, and the sealing ring 212 is attached to the spherical inner wall 141. The liquid outlet communicating port 132 is of an eccentric circle structure, the liquid inlet communicating port 131 is of an arc-shaped notch structure, a transition partition plate 133 is arranged between the liquid inlet communicating port 131 and the liquid outlet communicating port 132, and a sealing washer 23 and an arc-shaped sealing layer 24 which are used for sealing the liquid outlet communicating port 132 and the liquid inlet communicating port 131 respectively are arranged on the lower side of the circular valve plate 21. The bottom of the valve cover 3 is provided with a buffer block 31.
While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.
Claims (5)
1. The utility model provides a pilot-operated solenoid valve, includes valve body (1), valve gap (3), main valve subassembly (2) and locating component (4), its characterized in that:
the valve comprises a valve body (1), wherein one side of the valve body is provided with a liquid inlet (11), the other side of the valve body is provided with a liquid outlet (12), a communication port (13) is arranged in the valve body (1), the communication port (13) comprises a liquid inlet communication port (131) and a liquid outlet communication port (132), the liquid inlet communication port (131) is communicated with the liquid inlet (11), and the liquid outlet communication port (132) is communicated with the liquid outlet (12);
the valve cover (3) is covered on the top of the valve body (1), the valve cover (3) and the main valve component (2) are enclosed to form a control cavity (14), the left part of the control cavity (14) is a spherical inner wall (141), a pilot channel (15) is arranged in the valve cover (3) and the valve body (1), one end of the pilot channel (15) is communicated with the liquid outlet (12), the other end of the pilot channel is communicated with the control cavity (14), and an electromagnetic valve (5) used for communicating or stopping the pilot channel (15) is installed on the upper part of the valve cover (3);
the main valve component (2) comprises a circular valve plate (21), the circular valve plate (21) is rotatably arranged inside the control cavity (14), a balance hole (211) is formed in the circular valve plate (21), and the balance hole (211) is communicated with the control cavity (14) and the liquid inlet (11); a water guide body (22) is mounted on the lower side of the circular valve plate (21), the water guide body (22) is located in the liquid inlet communicating port (131), a water guide part (221) is arranged on the inner side of the water guide body (22), a spherical surface part (222) is arranged on the outer side of the water guide body (22), when the main valve assembly (2) is opened, the water guide part (221) is located in the control cavity, the spherical surface part (222) is in sliding connection with the spherical inner wall (141), and the lower end of the balance hole (211) is communicated with the water guide part (221);
locating component (4), including locating lever (41) and fix transverse guide (42) in valve gap (3) bottom, be equipped with slider (43) on transverse guide (42), be equipped with between slider (43) and valve body (1) first reset spring (44), locating lever (41) one end articulates the top of circular valve plate (21), locating lever (41) other end articulate in slider (43).
2. A pilot operated solenoid valve as claimed in claim 1 wherein: the electromagnetic valve (5) comprises a guide valve sleeve (51) fixedly connected with the valve body (1), an electromagnet (52) fixedly connected with the guide valve sleeve (51) and a movable iron core (53) arranged in the guide valve sleeve (51), a second reset spring (56) is arranged between one end of the movable iron core (53) and the electromagnet (52), a screw rod (54) is arranged at one end of the movable iron core (53), and a piston (55) used for communicating or stopping the pilot channel (15) is connected to the screw rod (54).
3. A pilot operated solenoid valve as claimed in claim 1 wherein: and a sealing ring (212) is arranged on the periphery of the circular valve plate (21), and the sealing ring (212) is attached to the spherical inner wall (141).
4. A pilot operated solenoid valve as claimed in claim 1 wherein: liquid outlet intercommunication mouth (132) are eccentric circle structure, and liquid inlet intercommunication mouth (131) are arc notch structure, be equipped with transition baffle (133) between liquid inlet intercommunication mouth (131) and liquid outlet intercommunication mouth (132), circular valve plate (21) downside is equipped with seal ring (23) and arc sealing layer (24) that are used for shutoff liquid outlet intercommunication mouth (132) and liquid inlet intercommunication mouth (131) respectively.
5. A pilot operated solenoid valve as claimed in claim 1 wherein: the bottom of the valve cover (3) is provided with a buffer block (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009537.1U CN212455714U (en) | 2020-06-04 | 2020-06-04 | Pilot-operated type electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009537.1U CN212455714U (en) | 2020-06-04 | 2020-06-04 | Pilot-operated type electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455714U true CN212455714U (en) | 2021-02-02 |
Family
ID=74479060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021009537.1U Active CN212455714U (en) | 2020-06-04 | 2020-06-04 | Pilot-operated type electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455714U (en) |
-
2020
- 2020-06-04 CN CN202021009537.1U patent/CN212455714U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208605418U (en) | A kind of pilot type electromagnetic switch valve | |
| CN113833875A (en) | Pneumatic diaphragm valve and application method thereof | |
| CN212455714U (en) | Pilot-operated type electromagnetic valve | |
| CN208397378U (en) | A kind of pressure reducing valve | |
| CN210830495U (en) | High-pressure-resistance leakage-proof two-way electromagnetic valve | |
| CN110307347B (en) | High-sealing pressure reducing valve | |
| CN216555503U (en) | Double-diaphragm electromagnetic valve | |
| CN110566713A (en) | Exhaust valve driving mechanism and exhaust valve | |
| CN2531183Y (en) | Normal open magnetic valve | |
| CN212839680U (en) | Self-compensating normally open electromagnetic valve | |
| CN205479640U (en) | Guide's piston solenoid valve | |
| CN212455509U (en) | Electromagnetic valve with good connecting and sealing effects | |
| CN109737212B (en) | Waste water valve with anti-scale and silencing functions | |
| CN114087398A (en) | Double-diaphragm electromagnetic valve | |
| CN210687191U (en) | Exhaust valve driving mechanism and exhaust valve | |
| CN210318742U (en) | Zero-pressure-difference normally open electromagnetic valve | |
| CN208503613U (en) | Leading gas injection valve | |
| CN201180794Y (en) | Air-controlled direct-acting valve | |
| CN112066017A (en) | Gate valve | |
| CN216479058U (en) | Proportional electromagnetic valve | |
| CN218954068U (en) | Fluid control valve | |
| CN215596532U (en) | Novel low oil pressure quick-closing valve oil cylinder | |
| CN219177069U (en) | Pneumatic plunger valve with mechanical feedback | |
| CN219062531U (en) | One-inlet two-outlet reversing valve | |
| CN219813837U (en) | Fluid switch device for opening channel according to negative pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |