CN209943585U - Three-way valve - Google Patents
Three-way valve Download PDFInfo
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- CN209943585U CN209943585U CN201920508185.5U CN201920508185U CN209943585U CN 209943585 U CN209943585 U CN 209943585U CN 201920508185 U CN201920508185 U CN 201920508185U CN 209943585 U CN209943585 U CN 209943585U
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Abstract
The utility model provides a three-way valve, it includes the disk seat, the apron, the valve body, the valve plate, the valve rod, go up case and lower case, be equipped with the chamber of admitting air on the valve plate, the valve plate constitutes the valve pocket with the valve body, it sets up the inside at last valve pocket to go up the valve pocket, the bottom of valve body constitutes lower valve pocket with the disk seat, the lower case sets up the inside and cup joint on the valve rod movably of valve pocket down, and separate down the valve pocket and form the cooperation chamber, working chamber and exhaust chamber, the lower extreme of valve rod has set firmly the spacing ring, admit air and be equipped with first valve port between the chamber and the last valve pocket, it is equipped with the second valve mouth to go up to be equipped with between valve pocket and the cooperation chamber, be equipped with the third valve port between working chamber and the exhaust chamber, it drives to open by the valve rod and fits first valve port and second valve port to go up the valve pocket, the. Adopt the utility model discloses, simple structure, simple to operate, it is with low costs, sealed reliable, the antipollution ability is strong, is applicable to occasions that the seal requirements are high such as gas.
Description
Technical Field
The utility model belongs to the technical field of the valve class, especially, relate to a three-way valve.
Background
The three-way valve is widely applied to hydraulic and pneumatic control systems, a two-position three-way valve or a three-position three-way valve is commonly used, mechanical or electromagnetic driving is generally adopted, and the valve core is controlled to move so as to achieve the purpose of reversing.
The driving system of the three-way valve is generally one-way, for example, a two-position valve needs to be driven by an electromagnet, and the other end of the three-way valve is reset by mechanical force such as a spring. And the valve core of the three-position valve at the default position stays at the middle position, and the two ends of the three-position valve are respectively provided with a driving device so as to achieve the purpose of bidirectional movement of the valve. Therefore, when the three-position three-way valve acts, both ends of the three-position three-way valve are required to provide driving force, a sliding valve structure is commonly used, a gap exists between a valve core and a valve body, a certain amount of internal leakage exists, the requirements on sliding valve parts and assembly precision are high, the machining is difficult, the cost is high, and the three-position three-way valve is not suitable for occasions with high requirements on tightness such as gas and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure is provided, simple to operate, and is with low costs, and is sealed reliable, and antipollution can the reinforce, is applicable to the three-way valve of occasions that the seal requires highly such as gas.
In order to solve the technical problem, the utility model provides a three-way valve, it includes disk seat, apron, valve body, valve plate, valve rod, goes up case, lower case, air inlet, working port, gas vent and drive assembly, the apron lid is established on the disk seat and with the disk seat constitutes can supply the valve body with the cavity of valve plate installation, the valve plate be equipped with the air inlet chamber that links to each other of air inlet, the valve plate lid is established the top of valve body and with the valve body constitutes the upper valve pocket, the upper valve case sets up the inside of upper valve pocket and with valve rod fixed connection, the bottom of valve body with the disk seat constitutes lower valve pocket, the lower case sets up the inside of lower valve pocket and cup joints with moving about on the valve rod, the lower case will the lower valve pocket separate form with the upper portion of lower case constitutes vice cooperation chamber of sliding, A working cavity connected with the working port and an exhaust cavity connected with the exhaust port, wherein the lower valve core is provided with a hollow channel for the valve rod to pass through, the air inlet cavity, the upper valve cavity, the matching cavity, the hollow channel, the working cavity and the exhaust cavity are sequentially connected, the upper end of the valve rod is connected with the power output end of the driving assembly, the lower end of the valve rod is fixedly provided with a limiting ring, a first valve port matched with the upper end sealing surface of the upper valve core is arranged between the air inlet cavity and the upper valve cavity, a second valve port matched with the lower end sealing surface of the upper valve core is arranged between the upper valve cavity and the matching cavity, a third valve port matched with the lower end sealing surface of the lower valve core is arranged between the working cavity and the exhaust cavity, and the upper valve core is driven by the valve rod to open and close the first valve port and the second valve port, the limiting ring is driven by the valve rod to abut against or be separated from the lower end of the lower valve core, the lower valve core is driven by the limiting ring to open and close the third valve port, and the moving distance of the upper valve core from the second valve port to the first valve port is equal to the sum of the moving distance between the limiting ring and the lower valve core and the moving distance between the lower valve core and the third valve port.
As a preferred aspect of the present invention, the moving distance from the second valve port to the first valve port of the upper valve core is twice the moving distance between the limit ring and the lower valve core.
As the preferred scheme of the utility model, go up the case with be equipped with first compression spring between the first valve port.
As the preferred scheme of the utility model, the lower valve core with be equipped with the second compression spring between the second valve mouth.
As the utility model discloses preferred scheme, the lower valve core includes case skeleton and ring packing, the case skeleton is for having the cavity passageway and with the cooperation chamber constitutes the vice sliding sleeve of slip, ring packing set up in the lower extreme of case skeleton constitutes the sealed face of lower extreme of lower valve core, the case skeleton with the valve body is equipped with and is used for cutting off the fluid process the sliding sleeve with space entering between the cooperation chamber the seal assembly in exhaust chamber.
As the utility model discloses preferred scheme, seal assembly includes diaphragm and diaphragm fixed block, the one end of diaphragm with case skeleton sealing connection, the other end of diaphragm passes through the diaphragm fixed block is sealed to be fixed the bottom of valve body.
As the utility model discloses preferred scheme, the valve body with be equipped with first sealing washer between the valve plate.
As the utility model discloses preferred scheme, the valve body with be equipped with the second sealing washer between the disk seat.
As the utility model discloses preferred scheme, drive assembly is electro-magnet drive assembly.
As the utility model discloses preferred scheme, drive assembly includes coil support, coil, moving axis, dead axle, sleeve and magnetic conduction support, coil support is the tubular structure, the coil is around establishing coil support's periphery, the dead axle is fixed coil support's inside, the upper end of dead axle with the magnetic conduction leg joint, the lower extreme of dead axle with muffjoint, the moving axis sets up telescopic inside and with the sleeve constitutes the sliding pair, the lower extreme of moving axis with the upper end of valve rod is connected, the magnetic conduction support is the type of falling U lid and establishes coil support reaches the outside of coil.
Implement the utility model discloses a three-way valve compares with prior art, can switch different stations according to the cooperation condition of last case, lower case and each valve port:
in an initial state, the upper valve core is contacted with the second valve port, the lower valve core is contacted with the third valve port, the limiting ring is separated from the lower valve core, the upper valve cavity, the working cavity and the exhaust cavity are kept not communicated with each other, the air inlet is connected with an air source, the upper valve cavity is filled with air, and the three-way valve is positioned at a keeping station;
when the driving component drives the valve rod to move upwards, the valve rod drives the upper valve core to be opened upwards, the upper valve cavity is communicated with the working cavity, gas enters the working cavity through the hollow channel of the lower valve core and then outputs pressure outwards through the working port, and the three-way valve is located at a working station;
when the upper valve core is opened to about half of the total stroke, the limiting ring contacts the lower valve core, the positions of the upper valve core and the lower valve core are kept unchanged, and the gas outputs pressure outwards through the working cavity and the working port, so that the three-way valve is still in a working station;
when the driving component drives the valve rod to continuously move upwards, the valve rod drives the upper valve core and the lower valve core to move upwards together, at the moment, the upper end sealing surface of the upper valve core is contacted with the first valve port, the air inlet cavity is not communicated with the upper valve cavity, and air inlet is stopped; the lower valve core is opened upwards and separated from the third valve port, the working cavity is communicated with the exhaust cavity, gas is exhausted through the exhaust port, the air pressure of the working cavity is reduced, and the three-way valve is positioned at an exhaust station;
when the air pressure of the working cavity reaches a required pressure value, the upper valve core and the lower valve core reset, the upper valve cavity, the working cavity and the exhaust cavity are disconnected and not communicated with each other, and the air pressure in the working cavity is kept unchanged;
when the required air pressure of the working chamber changes, the air pressure of the working chamber can be adjusted to the required pressure by combining the above steps.
It can be seen that, the utility model discloses a three-way valve during operation, the one-way stroke of case is little, and the station switches fast to the case belongs to the flapper valve, and is sealed for the face contact, and every valve port only relates to opening, closes two kinds of states, simple structure, simple to operate, and is with low costs, and is sealed reliable, and the antipollution can the reinforce, is particularly useful for occasions that the seal requirements such as gas are high.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a three-way valve provided by the present invention;
fig. 2 is an exploded schematic view of a three-way valve provided by the present invention;
fig. 3 is a schematic diagram of an external structure of a three-way valve according to the present invention;
the reference numeral, 1 is a valve seat, 2 is a cover plate, 3 is a valve body, 4 is a valve plate, 5 is a valve rod, 6 is an upper valve core, 7 is a lower valve core, 8 is an air inlet, 9 is a working port, 10 is an air outlet, 11 is a driving component, 12 is an air inlet cavity, 13 is an upper valve cavity, 14 is a matching cavity, 15 is a working cavity, 16 is an air exhaust cavity, 17 is a hollow channel, 18 is a limit ring, 19 is a first valve port, 20 is a second valve port, 21 is a third valve port, 22 is a first compression spring, 23 is a second compression spring, 24 is a valve core framework, 25 is an annular sealing ring, 26 is a diaphragm, 27 is a diaphragm fixing block, 28 is a first sealing ring, 29 is a second sealing ring, 30 is a coil support, 31 is a coil, 32 is a movable shaft, 33 is a fixed shaft, 34 is a sleeve, and 35 is a magnetic conductive support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a preferred embodiment of a three-way valve, which includes a valve seat 1, a cover plate 2, a valve body 3, a valve plate 4, a valve rod 5, an upper valve core 6, a lower valve core 7, an air inlet 8, a working port 9, an air outlet 10 and a driving assembly 11, wherein the cover plate 2 is covered on the valve seat 1 and forms a cavity with the valve seat 1 for the valve body 3 and the valve plate 4 to be mounted, the valve plate 4 is provided with an air inlet chamber 12 connected to the air inlet 8, the valve plate 4 is covered on the top of the valve body 3 and forms an upper valve chamber 13 with the valve body 3, the upper valve core 6 is disposed inside the upper valve chamber 13 and fixedly connected to the valve rod 5, the bottom of the valve body 3 forms a lower valve chamber with the valve seat 1, the lower valve core 7 is disposed inside the lower valve chamber and movably sleeved on the valve rod 5, the lower valve core 7 divides the lower valve cavity into a matching cavity 14 forming a sliding pair with the upper part of the lower valve core 7, a working cavity 15 connected with a working port 9 and an exhaust cavity 16 connected with an exhaust port 10, the lower valve core 7 is provided with a hollow channel 17 for the valve rod 5 to pass through, the air inlet cavity 12, the upper valve cavity 13, the matching cavity 14, the hollow channel 17, the working cavity 15 and the exhaust cavity 16 are sequentially connected, the upper end of the valve rod 5 is connected with the power output end of the driving assembly 11, the lower end of the valve rod 5 is fixedly provided with a limiting ring 18, a first valve port 19 matched with the upper end sealing surface of the upper valve core 6 is arranged between the air inlet cavity 12 and the upper valve cavity 13, a second valve port 20 matched with the lower end sealing surface of the upper valve core 6 is arranged between the upper valve cavity 13 and the matching cavity 14, and a third valve port matched with the lower end sealing surface of the lower valve core 7 is arranged between the working cavity 15 and the exhaust cavity 16 The upper valve core 6 is driven by the valve rod 5 to open and close the first valve port 19 and the second valve port 20, the limit ring 18 is driven by the valve rod 5 to abut against or separate from the lower end of the lower valve core 7, the lower valve core 7 is driven by the limit ring 18 to open and close the third valve port 21, and the moving distance of the upper valve core 6 from the second valve port 20 to the first valve port 19 is equal to the sum of the moving distance between the limit ring 18 and the lower valve core 7 and the moving distance between the lower valve core 7 and the third valve port 21.
Implement the utility model discloses a three-way valve can switch different stations according to the cooperation condition of last case 6, lower valve core 7 and each valve port:
in an initial state, the upper valve core 6 is in contact with the second valve port 20, the lower valve core 7 is in contact with the third valve port 21, the limiting ring 18 is separated from the lower valve core 7, the upper valve cavity 13, the working cavity 15 and the exhaust cavity 16 are not communicated with each other, the air inlet 8 is connected with an air source, the upper valve cavity 13 is filled with air, and the three-way valve is positioned at a holding station;
when the driving component 11 drives the valve rod 5 to move upwards, the valve rod 5 drives the upper valve core 6 to open upwards, the upper valve cavity 13 is communicated with the working cavity 15, gas enters the working cavity 15 through the hollow channel 17 of the lower valve core 7, and then pressure is output outwards through the working port 9, so that the three-way valve is positioned at a working station;
when the upper valve core 6 is opened to about half of the total stroke, the limiting ring 18 contacts the lower valve core 7, the positions of the upper valve core 6 and the lower valve core 7 are kept unchanged, and the gas outputs pressure outwards through the working cavity 15 and the working port 9, so that the three-way valve is still in a working position;
when the driving assembly 11 drives the valve rod 5 to continuously move upwards, the valve rod 5 drives the upper valve core 6 and the lower valve core 7 to move upwards together, at the moment, the upper end sealing surface of the upper valve core 6 is contacted with the first valve port 19, the air inlet cavity 12 is not communicated with the upper valve cavity 13, and air inlet is stopped; the lower valve core 7 is opened upwards and separated from the third valve port 21, the working cavity 15 is communicated with the exhaust cavity 16, gas is exhausted through the exhaust port 10, the air pressure of the working cavity 15 is reduced, and the three-way valve is positioned at an exhaust station;
when the air pressure in the working cavity 15 reaches the required pressure value, the upper valve core 6 and the lower valve core 7 are reset, the upper valve cavity 13, the working cavity 15 and the exhaust cavity 16 are disconnected and not communicated with each other, and the air pressure in the working cavity 15 is kept unchanged;
when the required pressure of the working chamber 15 varies, the pressure of the working chamber 15 can be adjusted to the required pressure by combining the above steps.
It can be seen that, the utility model discloses a three-way valve during operation, the one-way stroke of case is little, and the station switches fast to the case belongs to the flapper valve, and is sealed for the face contact, and every valve port only relates to opening, closes two kinds of states, simple structure, simple to operate, and is with low costs, and is sealed reliable, and the antipollution can the reinforce, is particularly useful for occasions that the seal requirements such as gas are high.
For example, the moving distance of the upper valve core 6 from the second valve port 20 to the first valve port 19 is twice the moving distance between the limiting ring 18 and the lower valve core 7, so as to ensure the opening range between the valve cores and the valve ports.
Illustratively, a first compression spring 22 is arranged between the upper valve core 6 and the first valve port 19. The first compression spring 22 provides a restoring force for the upper valve core 6, and in an initial state, the upper valve core 6 can be ensured to be in close contact with the second valve port 20.
Illustratively, a second compression spring 23 is arranged between the lower valve core 7 and the second valve port 20. The second compression spring 23 provides a restoring force for the lower valve element 7, and in an initial state, the lower valve element 7 can be ensured to be in close contact with the third valve opening 21.
Illustratively, the lower valve element 7 includes a valve element framework 24 and an annular sealing ring 25, the valve element framework 24 is a sliding sleeve which is provided with the hollow channel 17 and forms a sliding pair with the matching cavity 14, the annular sealing ring 25 is arranged at the lower end of the valve element framework 24 and forms a lower end sealing surface of the lower valve element 7, and the valve element framework 24 and the valve body 3 are provided with a sealing assembly for blocking fluid from entering the exhaust cavity 16 through a gap between the sliding sleeve and the matching cavity 14. With such a design, the lower valve core 7 can stably move under the action of a sliding pair formed by the matching cavity 14 and the sliding sleeve.
Illustratively, the sealing assembly comprises a diaphragm 26 and a diaphragm fixing block 27, one end of the diaphragm 26 is connected with the valve core framework 24 in a sealing manner, and the other end of the diaphragm 26 is fixed at the bottom end of the valve body 3 in a sealing manner through the diaphragm fixing block 27. Thus, the mode that the diaphragm 26 is used for preventing fluid from entering the exhaust cavity 16 through a gap between the sliding sleeve and the matching cavity 14 is adopted, the mounting structure is convenient, a sealing ring does not need to be arranged in a sliding pair formed by the matching cavity 14 and the sliding sleeve, and the damage of sliding friction to the sealing ring is avoided.
Illustratively, in order to ensure the air tightness of the valve body 3, a first sealing ring 28 is arranged between the valve body 3 and the valve plate 4, and a second sealing ring 29 is arranged between the valve body 3 and the valve seat 1.
Illustratively, the driving assembly 11 is an electromagnet driving assembly, and has the advantages of fast action and low cost. Specifically, the electromagnet driving assembly 11 includes a coil support 30, a coil 31, a moving shaft 32, a fixed shaft 33, a sleeve 34, and a magnetic conductive support 35, wherein the coil support 30 is of a cylindrical structure, the coil 31 is wound around the periphery of the coil support 30, the fixed shaft 33 is fixed inside the coil support 30, the upper end of the fixed shaft 33 is connected to the magnetic conductive support 35, the lower end of the fixed shaft 33 is connected to the sleeve 34, the moving shaft 32 is arranged inside the sleeve 34 and forms a sliding pair with the sleeve 34, the lower end of the moving shaft 32 is connected to the upper end of the valve rod 5, and the magnetic conductive support 35 is disposed outside the coil support 30 and the coil 31 in an inverted U-shaped cover.
In the following, taking the electromagnet driving assembly 11 to drive the three-way valve as an example, the working method is as follows:
in an initial state, the upper valve core 6 is in contact with the second valve port 20, the lower valve core 7 is in contact with the third valve port 21, the limiting ring 18 is separated from the lower valve core 7, the upper valve cavity 13, the working cavity 15 and the exhaust cavity 16 are not communicated with each other, the air inlet 8 is connected with an air source, the upper valve cavity 13 is filled with air, and the three-way valve is positioned at a holding station;
a small current I is led into the electromagnet driving component 111When the electromagnetic force generated between the movable shaft 32 and the fixed shaft 33 is greater than the acting force of the first spring, the valve rod 5 drives the upper valve core 6 to be opened upwards, the upper valve cavity 13 is communicated with the working cavity 15, gas enters the working cavity 15 through the hollow channel 17 of the lower valve core 7 and then outputs pressure outwards through the working port 9, and the three-way valve is positioned at a working station;
when the upper valve core 6 is opened to about half of the total stroke, the limiting ring 18 contacts the lower valve core 7, the electromagnetic force generated between the movable shaft 32 and the fixed shaft 33 is smaller than the sum of the acting force of the first spring and the acting force of the second spring, the positions of the upper valve core 6 and the lower valve core 7 are kept unchanged, and the gas outputs pressure outwards through the working cavity 15 and the working port 9, so that the three-way valve is still in a working position;
a larger current I is led into the electromagnet driving component 112The electromagnetic force generated between the movable shaft 32 and the fixed shaft 33 is increased and is greater than the first springAnd the acting force of the second spring, the valve rod 5 drives the upper valve core 6 and the lower valve core 7 to move upwards together, the upper end sealing surface of the upper valve core 6 is contacted with the first valve port 19 at the moment, the air inlet cavity 12 is not communicated with the upper valve cavity 13, and air inlet is stopped; the lower valve core 7 is opened upwards and separated from the third valve port 21, the working cavity 15 is communicated with the exhaust cavity 16, gas is exhausted through the exhaust port 10, the air pressure of the working cavity 15 is reduced, and the three-way valve is positioned at an exhaust station;
the input current of the electromagnet driving assembly 11 is cut off, the upper valve core 6 and the lower valve core 7 reset under the action of the first spring and the second spring respectively, the upper valve cavity 13, the working cavity 15 and the exhaust cavity 16 are cut off and are not communicated with each other, and the air pressure in the working cavity 15 is kept unchanged;
when the required pressure of the working chamber 15 varies, the pressure of the working chamber 15 can be adjusted to the required pressure by combining the above steps.
Of course, in other embodiments, the driving assembly 11 may also be a mechanical driving assembly, such as an air cylinder, an oil cylinder, or a linear driving device composed of a motor and a screw rod pair.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A three-way valve is characterized by comprising a valve seat (1), a cover plate (2), a valve body (3), a valve plate (4), a valve rod (5), an upper valve core (6), a lower valve core (7), an air inlet (8), a working port (9), an air outlet (10) and a driving assembly (11), wherein the cover plate (2) covers the valve seat (1) and forms a cavity for installing the valve body (3) and the valve plate (4) with the valve seat (1), the valve plate (4) is provided with an air inlet cavity (12) connected with the air inlet (8), the valve plate (4) covers the top of the valve body (3) and forms an upper valve cavity (13) with the valve body (3), the upper valve core (6) is arranged inside the upper valve cavity (13) and fixedly connected with the valve rod (5), and the bottom of the valve body (3) forms a lower valve cavity with the valve seat (1), the lower valve core (7) is arranged inside the lower valve cavity and movably sleeved on the valve rod (5), the lower valve core (7) divides the lower valve cavity into a matching cavity (14) forming a sliding pair with the upper portion of the lower valve core (7), a working cavity (15) connected with the working port (9) and an exhaust cavity (16) connected with the exhaust port (10), the lower valve core (7) is provided with a hollow channel (17) allowing the valve rod (5) to penetrate, the air inlet cavity (12), the upper valve cavity (13), the matching cavity (14), the hollow channel (17), the working cavity (15) and the exhaust cavity (16) are sequentially connected, the upper end of the valve rod (5) is connected with the power output end of the driving assembly (11), the lower end of the valve rod (5) is fixedly provided with a limiting ring (18), and a sealing joint with the upper end of the upper valve core (6) is arranged between the air inlet cavity (12) and the upper valve cavity (13) A first valve port (19) matched with a cover, a second valve port (20) matched with a lower end sealing surface of the upper valve core (6) is arranged between the upper valve cavity (13) and the matching cavity (14), a third valve port (21) matched with a lower end sealing surface of the lower valve core (7) is arranged between the working cavity (15) and the exhaust cavity (16), the upper valve core (6) is driven by the valve rod (5) to open and close on the first valve port (19) and the second valve port (20), the limiting ring (18) is driven by the valve rod (5) to abut against or be separated from the lower end of the lower valve core (7), the lower valve core (7) is driven by the limiting ring (18) to open and close on the third valve port (21), and the moving distance of the upper valve core (6) from the second valve port (20) to the first valve port (19) is equal to the moving distance between the limiting ring (18) and the lower valve core (7) and the moving distance between the lower valve core (7) and the sum of the moving distances between the valve ports (21).
2. A three-way valve according to claim 1, characterized in that the distance of movement of the upper spool (6) from the second port (20) to the first port (19) is twice the distance of movement between the stop collar (18) and the lower spool (7).
3. A three-way valve according to claim 1, characterized in that a first compression spring (22) is arranged between the upper spool (6) and the first port (19).
4. A three-way valve according to claim 1, characterized in that a second compression spring (23) is arranged between the lower spool (7) and the second port (20).
5. A three-way valve according to claim 1, characterized in that the lower valve element (7) comprises a valve element frame (24) and an annular sealing ring (25), the valve element frame (24) is a sliding sleeve which is provided with the hollow channel (17) and forms a sliding pair with the matching cavity (14), the annular sealing ring (25) is arranged at the lower end of the valve element frame (24) and forms a lower end sealing surface of the lower valve element (7), and the valve element frame (24) and the valve body (3) are provided with a sealing assembly for blocking fluid from entering the exhaust cavity (16) through a gap between the sliding sleeve and the matching cavity (14).
6. The three-way valve according to claim 5, characterized in that the sealing component comprises a diaphragm (26) and a diaphragm fixing block (27), one end of the diaphragm (26) is connected with the valve core framework (24) in a sealing mode, and the other end of the diaphragm (26) is fixed at the bottom end of the valve body (3) in a sealing mode through the diaphragm fixing block (27).
7. A three-way valve according to claim 1, characterized in that a first sealing ring (28) is arranged between the valve body (3) and the valve plate (4).
8. A three-way valve according to claim 1, characterized in that a second sealing ring (29) is arranged between the valve body (3) and the valve seat (1).
9. A three-way valve according to any one of claims 1 to 8, characterized in that the drive assembly (11) is an electromagnet drive assembly (11).
10. A three-way valve according to claim 9, characterized in that the drive assembly (11) comprises a coil support (30), a coil (31), a moving shaft (32), a fixed shaft (33), a sleeve (34) and a magnetically conductive support (35), the coil support (30) is of a cylinder structure, the coil (31) is wound on the periphery of the coil support (30), the fixed shaft (33) is fixed in the coil bracket (30), the upper end of the fixed shaft (33) is connected with the magnetic conduction bracket (35), the lower end of the fixed shaft (33) is connected with the sleeve (34), the moving shaft (32) is arranged in the sleeve (34) and forms a sliding pair with the sleeve (34), the lower end of the moving shaft (32) is connected with the upper end of the valve rod (5), and the magnetic conduction support (35) is arranged on the outer sides of the coil support (30) and the coil (31) in an inverted U-shaped cover mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508185.5U CN209943585U (en) | 2019-04-15 | 2019-04-15 | Three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920508185.5U CN209943585U (en) | 2019-04-15 | 2019-04-15 | Three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943585U true CN209943585U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920508185.5U Active CN209943585U (en) | 2019-04-15 | 2019-04-15 | Three-way valve |
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| Country | Link |
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| CN (1) | CN209943585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332334A (en) * | 2019-04-15 | 2019-10-15 | 广东万和热能科技有限公司 | A kind of triple valve |
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2019
- 2019-04-15 CN CN201920508185.5U patent/CN209943585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332334A (en) * | 2019-04-15 | 2019-10-15 | 广东万和热能科技有限公司 | A kind of triple valve |
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