CN114484016A - Two-position four-way electromagnetic valve - Google Patents

Abstract

The application relates to the field of multi-position and multi-way electromagnetic valves, in particular to a two-position and four-way electromagnetic valve. The two-position four-way solenoid valve comprises a valve body, a first valve core assembly and a second valve core assembly, wherein the valve body is provided with a first valve cavity, a second valve cavity, a first interface, a second interface, a third interface, a fourth interface, a third interface and a fourth interface. The first valve cavity and the second valve cavity are positioned on two sides of the valve body in the first direction, and the first interface and the second interface can be communicated with the third interface through the first valve cavity and the fourth interface through the second valve cavity; the first valve core assembly and the second valve core assembly can move in a second direction perpendicular to the first direction, the third interface can be communicated with the first interface or the second interface due to the movement of the first valve core assembly, and the fourth interface can be communicated with the first interface or the second interface due to the movement of the second valve core assembly, so that the communication states of the four interfaces and the two valve cavities can be switched, the valve body can have a small size, and the occupied installation space is small.

Description

Two-position four-way electromagnetic valve

Technical Field

The application relates to the field of multi-position and multi-way electromagnetic valves, in particular to a two-position and four-way electromagnetic valve.

Background

The two-position four-way solenoid valve is usually used in a pneumatic system to change the direction of a medium flow, but the conventional two-position four-way solenoid valve is generally in a single-valve-core structure, and the flow direction switching is realized through the reciprocating motion of one valve core, so that the whole two-position four-way solenoid valve has a large volume and needs to occupy a large installation space.

Disclosure of Invention

The invention aims to provide a two-position four-way electromagnetic valve, which has smaller volume to a certain extent.

The invention provides a two-position four-way electromagnetic valve which comprises a valve body, a first valve core assembly and a second valve core assembly, wherein the first valve core assembly is arranged on the valve body; the first valve core assembly and the second valve core assembly are respectively movably connected with the valve body, and the valve body is provided with a first valve cavity, a second valve cavity, a first interface, a second interface, a third interface and a fourth interface; the first valve cavity and the second valve cavity are positioned on two sides of the valve body in a first direction, the third interface is communicated with the first valve cavity, the first valve core assembly can move in a second direction perpendicular to the first direction, and the third interface can be communicated with the first interface or the second interface through the first valve cavity by the movement of the first valve core assembly; the fourth interface is communicated with the second valve cavity, the second valve spool assembly can move along the second direction, and the movement of the second valve spool assembly can enable the fourth interface to be communicated with the first interface or the second interface through the second valve cavity.

Furthermore, a first cavity and a second cavity are respectively formed on the valve body on two sides of the first valve cavity in the second direction, a first through hole and a second through hole are respectively formed at two ends of the first valve cavity in the second direction, the first through hole is communicated with the first cavity, and the second through hole is communicated with the second cavity; the second port is communicated with the first chamber, and the first port is communicated with the second chamber; the first valve core assembly comprises a first valve disc, the first valve disc is movably arranged in the first valve cavity, and the first valve disc can move in the first valve cavity along the second direction to block the first through hole or the second through hole.

Furthermore, a first bulge protruding towards the first valve cavity is arranged around the outer side of the first through hole, and a second bulge protruding towards the first valve cavity is arranged around the outer side of the second through hole; a first sealing gasket is arranged at the position of the first valve disc opposite to the first protrusion, and a second sealing gasket is arranged at the position of the first valve disc opposite to the second protrusion; the first valve disc is in sealing abutting joint with the first protrusion through the first sealing gasket, and the first valve disc is in sealing abutting joint with the second protrusion through the second sealing gasket.

Furthermore, a third chamber and a fourth chamber are respectively formed on the valve body on two sides of the second valve cavity in the second direction, the second valve cavity is communicated with the third chamber through a third through hole, and the second valve cavity is communicated with the fourth chamber through a fourth through hole; the second port is communicated with the third chamber, and the first port is communicated with the fourth chamber; the second valve core assembly comprises a second valve rod, a third valve disc and a fourth valve disc, the third valve disc is movably arranged in the third chamber, the fourth valve disc is movably arranged in the fourth chamber, and the third valve disc and the fourth valve disc are connected through the second valve rod; and the movement of the second valve core assembly can enable the third valve disc to seal and block the third through hole or enable the fourth valve disc to seal and block the fourth through hole.

Further, a third protrusion protruding towards the third chamber is arranged around the outer side of the third through hole, a third sealing gasket is arranged at a position of the third valve disc opposite to the third protrusion, and the third valve disc is in sealing abutting contact with the third protrusion through the third sealing gasket; the outer side of the fourth through hole is annularly provided with a fourth protrusion protruding towards the fourth cavity, a fourth sealing gasket is arranged at the position of the fourth valve disc opposite to the fourth protrusion, and the fourth valve disc is in sealing abutting connection with the fourth protrusion through the fourth sealing gasket.

Further, the first valve core assembly further comprises a second valve disc and a first valve rod; the second valve disc is movably arranged in the first chamber and is connected with the first valve disc through the first valve rod, so that the second valve disc and the first valve disc can move synchronously; the outer side wall of the second valve disc is in sealing abutting connection with the inner side wall of the first chamber through a fifth sealing gasket, the first chamber is divided into a first rod cavity and a first non-rod cavity by the second valve disc, and the first rod cavity is communicated with the first valve cavity and the second interface.

Furthermore, the outer side wall of the third valve disc is in sealing abutting connection with the inner side wall of the third chamber through a sixth sealing gasket, the third chamber is divided into a third rod-containing cavity and a third rodless cavity by the third valve disc, and the third rod-containing cavity is communicated with the second valve cavity and the second interface.

Further, the valve body is formed with a pilot valve port, and the first interface is communicated with the pilot valve port; a pilot flow channel communicated with the pilot valve port is formed in the valve body, and the pilot flow channel can be communicated with the first rodless cavity and the third rodless cavity; the two-position four-way electromagnetic valve is further provided with an electromagnetic assembly, the electromagnetic assembly is used for being electrically connected with an external power supply, and when the electromagnetic assembly is powered off, the movable iron core of the electromagnetic assembly can be closed to the pilot flow channel so as to cut off the communication between the pilot flow channel and the first rod-free cavity and the communication between the pilot flow channel and the third rod-free cavity.

Furthermore, a first detection piece and a second detection piece are arranged in the valve body; the first detection piece is used for detecting the position of the first valve core assembly, and the second detection piece is used for detecting the position of the second valve core assembly.

Further, the first detection piece and the second detection piece both comprise a microswitch, a first permanent magnet and a second permanent magnet; the first permanent magnet is fixedly arranged on the corresponding first valve core assembly or the corresponding second valve core assembly, the second permanent magnet is movably arranged on the valve body, the second permanent magnet is positioned on one side of the first permanent magnet in the second direction, and the microswitch is positioned on one side of the second permanent magnet, which is far away from the first permanent magnet; the first permanent magnet and the second permanent magnet are opposite in ferromagnetic pole, so that a repulsive force exists between the first permanent magnet and the second permanent magnet; when the first permanent magnet is close to the second permanent magnet, the second permanent magnet can be close to the microswitch to trigger the microswitch; when the first permanent magnet is far away from the second permanent magnet, the second permanent magnet can be disengaged from the microswitch.

Compared with the prior art, the invention has the beneficial effects that:

the two-position four-way electromagnetic valve provided by the invention comprises a valve body, a first valve core assembly and a second valve core assembly, wherein the valve body is provided with a first valve cavity, a second valve cavity, a first interface, a second interface, a third interface and a fourth interface. The first valve cavity and the second valve cavity are positioned on two sides of the valve body in the first direction, the third interface is communicated with the first valve cavity, and the first interface and the second interface can be communicated with the third interface through the first valve cavity; the first valve core assembly is movably connected with the valve body and can move along a second direction perpendicular to the first direction relative to the valve body, and the movement of the first valve core assembly can cut off the communication between the second interface and the first valve cavity so as to enable the first interface to be communicated with the third interface; or the first valve core assembly can cut off the communication between the first interface and the first valve cavity by moving so as to enable the second interface to be communicated with the third interface. The fourth port is communicated with the second valve cavity, and the first port and the second port can be communicated with the fourth port through the second valve cavity; the second valve core assembly is movably connected with the valve body and can move along a second direction relative to the valve body, the first interface and the second valve cavity can be cut off by the movement of the second valve core assembly, so that the second interface is communicated with the second valve cavity, or the second interface and the second valve cavity can be cut off by the movement of the second valve core assembly, so that the first interface is communicated with the second valve cavity.

Therefore, this application makes two case subassemblies move along the second direction with first direction looks vertically respectively through setting up two valve chambeies respectively in the both sides of the first direction at the valve body to realize the switching of the connected state of four interfaces and two valve chambeies respectively, compare in two three-way solenoid valve of single valve core, can make the valve body have less volume, the installation space who occupies is also less.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a two-position four-way solenoid valve provided in an embodiment of the present invention.

Reference numerals:

1-a valve body, 2-a first valve cavity, 3-a first chamber, 4-a second chamber, 5-a second valve cavity, 6-a third chamber, 7-a fourth chamber, 8-a first valve rod, 9-a first valve disk, 10-a second valve disk, 11-a second valve rod, 12-a third valve disk, 13-a fourth valve disk, 14-an electromagnetic assembly, 15-a movable iron core, 16-a first permanent magnet, 17-a second permanent magnet and 18-a microswitch;

p-first interface, O-second interface, A-fourth interface, B-third interface, M-pilot valve port.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A two-position, four-way solenoid valve according to some embodiments of the present application is described below with reference to fig. 1.

The application provides a two-position four-way solenoid valve, as shown in fig. 1, including valve body 1, first case subassembly and second case subassembly, valve body 1 is formed with four interfaces, is first interface P that can be used as the medium import in proper order, can be used as the second interface O of discharge port to and third interface B and the fourth interface A that can be used as the medium export.

A first valve cavity 2 and a second valve cavity 5 are formed in the valve body 1, and the first valve cavity 2 and the second valve cavity 5 are positioned on two sides of the valve body 1 in a first direction, such as a left-right direction; the third port B is communicated with the first valve chamber 2, and the first port P can be communicated with one end of the first valve chamber 2 in the second direction, for example, the first port P can be communicated with the lower end of the first valve chamber 2, so that the first port P can be communicated with the third port B through the first valve chamber 2; the second port O can communicate with the upper end of the first valve chamber 2, so that the second port O can communicate with the third port B through the first valve chamber 2. The first valve core assembly is movably connected with the valve body 1, the first valve core assembly can move along a second direction, namely the vertical direction relative to the valve body 1, and the first valve core assembly is provided with a first station located above and a second station located below in the vertical direction. When the first valve core assembly moves to the first station, the first valve core assembly can cut off the communication between the second port O and the first valve cavity 2, further cut off the communication between the second port O and the third port B, and at the moment, the first port P is communicated with the third port B; when the first valve core assembly moves to the second station, the first valve core assembly can cut off the communication between the first port P and the first valve cavity 2, further cut off the communication between the first port P and the third port B, and at the moment, the second port O is communicated with the third port B.

The fourth port A is communicated with the second valve cavity 5, and the first port P can be communicated with the lower end of the second valve cavity 5, so that the first port P is communicated with the fourth port A through the second valve cavity 5; the second port O can communicate with the upper end of the second valve chamber 5, so that the second port O communicates with the fourth port a through the second valve chamber 5. The second valve core assembly is movably connected with the valve body 1, the second valve core assembly can move along the vertical direction relative to the valve body 1, and the second valve core assembly is provided with a third station located above and a fourth station located below in the vertical direction. When the second valve spool assembly moves to the third station, the second valve spool assembly can cut off the communication between the first port P and the second valve chamber 5, further cut off the communication between the first port P and the fourth port A, and at the moment, the second port O is communicated with the fourth port A; when the second valve spool assembly moves to the fourth station, the second valve spool assembly can cut off the communication between the second interface O and the second valve chamber 5, further cut off the communication between the second interface O and the fourth interface A, and at the moment, the first interface P is communicated with the fourth interface A.

Therefore, this application sets up two valve chambeies respectively through the both sides at the first direction of valve body 1, makes two case subassemblies move along the second direction with first direction looks vertically respectively to realize the switching of the connected state of four interfaces and two valve chambeies respectively, compare in the two three-way solenoid valve of single valve core, can make valve body 1 have less volume, the installation space who occupies is also less.

In one embodiment of the present application, it is preferable that the valve body 1 is formed with a first chamber 3 at an upper end of the first valve chamber 2, the valve body 1 is formed with a second chamber 4 at a lower end of the first valve chamber 2, the upper end of the first valve chamber 2 is formed with a first through hole for communicating with the first chamber 3, and the lower end of the first valve chamber 2 is formed with a second through hole for communicating with the second chamber 4. The first port P is communicated with the second chamber 4, so that the first port P can be communicated with the first valve cavity 2 through the second chamber 4; the second port O communicates with the first chamber 3, so that the second port O can communicate with the first valve chamber 2 through the first chamber 3.

The first valve core assembly comprises a first valve disc 9, the first valve disc 9 is movably arranged in the first valve cavity 2, and the first valve disc 9 can reciprocate in the first valve cavity 2 along a second direction, namely a vertical direction; when the first valve disc 9 moves upwards to abut against the top wall of the first valve cavity 2 and the first valve core assembly moves to the first station, the first valve disc 9 can seal and block the first through hole, so that the communication between the first cavity 3 and the first valve cavity 2 is cut off, and the communication between the second port O and the third port B is cut off; at this time, the second through hole is in an open state, and the second chamber 4 is communicated with the first valve chamber 2, so that the first port P is communicated with the third port B. Conversely, when the first valve disc 9 moves downward to abut against the bottom wall of the first valve chamber 2, that is, the first valve core assembly is located at the second station, the first valve disc 9 can seal and block the second through hole, so as to cut off the communication between the first port P and the third port B, and at this time, the second port O is communicated with the third port B.

Preferably, a first protrusion surrounding the first through hole is formed on the top wall of the first valve chamber 2, the first protrusion protrudes toward the inside of the first valve chamber 2, a first sealing gasket is arranged at a position where the upper end surface of the first valve disc 9 is opposite to the first protrusion, and the first valve disc 9 can be tightly abutted against the first protrusion through the first sealing gasket, so that the first through hole is sealed and blocked.

Preferably, a second protrusion surrounding the second through hole is formed on the bottom wall of the second valve chamber 5, the second protrusion protrudes toward the inside of the first valve chamber 2, a second sealing gasket is arranged at a position where the lower end surface of the first valve disc 9 is opposite to the second protrusion, and the second valve disc 10 can be in sealing abutment with the second protrusion through the second sealing gasket, so that the second through hole is sealed and blocked.

In one embodiment of the present application, it is preferable that the valve body 1 is formed with a third chamber 6 at an upper end of the second valve chamber 5, the valve body 1 is formed with a fourth chamber 7 at a lower end of the second valve chamber 5, the upper end of the second valve body 1 communicates with the third chamber 6 through a third through hole, and the lower end of the second valve body 1 communicates with the fourth chamber 7 through a fourth through hole. The first port P communicates with the fourth chamber 7, so that the first port P can communicate with the second valve chamber 5 through the fourth chamber 7, and further with the fourth port a; the second port O is in communication with the third chamber 6, so that the second port O can be in communication with the second valve chamber 5 through the third chamber 6, and in turn with the fourth port a.

The second valve core assembly comprises a second valve rod 11, a third valve disc 12 and a fourth valve disc 13, the third valve disc 12 is movably arranged in the third chamber 6, and the third valve disc 12 can reciprocate in the third chamber 6 along a second direction, namely a vertical direction; the fourth valve disc 13 is movably arranged in the fourth chamber 7, the fourth valve disc 13 can reciprocate in the fourth chamber 7 along the vertical direction, and the third valve disc 12 and the fourth valve disc 13 are connected through the second valve rod 11, so that the third valve disc 12 and the fourth valve disc 13 can lift synchronously.

The third valve disc 12 and the fourth valve disc 13 can synchronously move upwards to the top wall of the fourth valve disc 13 and the top wall of the fourth chamber 7 to abut against each other, namely the second valve core assembly moves to the third station, at the moment, the third through hole is opened, the second interface O can be communicated with the fourth interface A through the third chamber 6 and the second valve chamber 5, the fourth through hole is sealed and blocked by the fourth valve disc 13, and the communication between the first interface P and the fourth interface A is cut off. The third valve disc 12 and the fourth valve disc 13 can synchronously move downwards until the third valve disc 12 abuts against the bottom wall of the third chamber 6, namely the second valve core assembly moves to the fourth station, at the moment, the fourth through hole is opened, the first port P can be communicated with the fourth port a through the fourth chamber 7 and the second valve chamber 5, the third port P is sealed by the third valve disc 12, and the communication between the second port O and the fourth port a is cut off.

Preferably, a third protrusion surrounding the third through hole is formed on the bottom wall of the third chamber 6, the third protrusion protrudes toward the inside of the third chamber 6, a third sealing gasket is arranged at a position where the lower end surface of the third valve disc 12 is opposite to the third protrusion, and the third valve disc 12 can be tightly abutted by the third protrusion through the third sealing gasket, so that the third through hole is sealed and blocked.

Preferably, a fourth protrusion surrounding the fourth through hole is formed on the top wall of the fourth chamber 7, the fourth protrusion protrudes toward the inside of the fourth chamber 7, a fourth sealing gasket is disposed at a position where the upper end surface of the fourth valve disc 13 is opposite to the fourth protrusion, and the fourth valve disc 13 can be in sealing abutment with the fourth protrusion through the fourth sealing gasket.

Regarding the movement of the first valve core assembly and the second valve core assembly, in one embodiment of the present application, preferably, the first valve core assembly further includes a second valve disc 10 and a first valve rod 8, the second valve disc 10 is movably disposed in the first chamber 3, and the second valve disc 10 is connected with the first valve disc 9 through the first valve rod 8, so that the first valve disc 9 and the second valve disc 10 can move synchronously.

For the second valve disc 10 movably arranged in the first chamber 3, the outer side wall of the second valve disc 10 is in sealing abutment with the inner side wall of the first chamber 3 through a fifth sealing gasket, so that the second valve disc 10 can perform piston movement in the first chamber 3, and the second valve disc 10 divides the second chamber 4 into an upper chamber and a lower chamber, namely a first rodless chamber located above and a first rod chamber located below.

For the third valve disc 12 movably disposed in the third chamber 6, the outer side wall of the third valve disc 12 is tightly abutted to the inner side wall of the third chamber 6 through a sixth sealing gasket, so that the third valve disc 12 can perform piston movement in the third chamber 6, and the third valve disc 12 divides the third chamber 6 into an upper chamber and a lower chamber, which are respectively a third rodless chamber located above and a third rod chamber located below.

The valve body 1 is provided with a pilot valve port M, and the first port P and the pilot valve port M can be communicated through a flow channel in the valve body 1; a pilot flow channel is further formed in the valve body 1, one end of the pilot flow channel is communicated with the pilot valve port M, and the other end of the pilot flow channel can be communicated with the first rodless cavity and the third rodless cavity.

The two-position four-way electromagnetic valve further comprises an electromagnetic assembly 14, the electromagnetic assembly 14 can be electrically connected with an external power supply, and when the electromagnetic assembly 14 is in a power-off state, a movable iron core 15 of the electromagnetic assembly 14 can seal a pilot flow channel so as to cut off the communication between the pilot flow channel and the first rod-free cavity and the third rod-free cavity; when the solenoid assembly 14 is energized, the solenoid assembly 14 can open the pilot flow passage, communicating the pilot flow passage with the first and third rodless cavities.

The structure of the electromagnetic assembly 14 includes a stationary core, a movable core 15 and an electromagnetic coil for electrically connecting with an external power source, and the structure of the electromagnetic assembly 14 and how to realize the movement of the movable core 15 are well known to those skilled in the art and will not be described herein.

Based on the above structure, when the electromagnetic assembly 14 is in the power-off state, that is, in the state shown in fig. 1, the medium of the first interface P flows to the pilot valve port M and is sealed in the pilot flow channel by the iron core 15, the medium of the first interface P flows through the second chamber 4 and the fourth chamber 7, the first valve core assembly and the second valve core assembly move upward under the action of the medium pressure, the first valve core assembly moves to the first station, the second valve core assembly moves to the third station, at this time, the first interface P is communicated with the third interface B, and the second interface O is communicated with the fourth interface a.

When the electromagnetic assembly 14 is powered on, the pilot flow channel is opened, the medium of the first interface P flows to the first rodless cavity and the third rodless cavity through the pilot valve port M and the pilot flow channel, the first valve core assembly and the second valve core assembly move downward under the action of medium pressure, the first valve core assembly moves to the second station, the second valve core assembly moves to the fourth station, at this time, the second interface O is communicated with the third interface B, and the first interface P is communicated with the fourth interface a.

In an embodiment of the present application, preferably, a first detecting member and a second detecting member are further disposed in the valve body 1, the first detecting member is used for detecting a position of the first valve core assembly, and the second detecting member is used for detecting a position of the second valve core assembly, so as to monitor a state of the valve.

The first and second detecting members have the same structure, and for clarity, the structure of the first detecting member will be described.

First detection piece includes first permanent magnet 16, second permanent magnet 17 and micro-gap switch 18, and first permanent magnet 16 and second permanent magnet 17 set up along the relative interval of vertical direction, and on first permanent magnet 16 was fixed in first case subassembly, specifically is on first valve rod 8, second permanent magnet 17 activity set up the guide way on valve body 1 in, as shown in fig. 1, second permanent magnet 17 can be located the top of first permanent magnet 16, and micro-gap switch 18 sets up in the top of second permanent magnet 17. The second permanent magnet 17 has a magnetic pole opposite to that of the first permanent magnet 16, so that the first permanent magnet 16 and the second permanent magnet 17 have mutually repulsive forces. When the first permanent magnet 16 moves upward in a direction approaching the second permanent magnet 17, the second permanent magnet 17 can be pushed upward, thereby triggering the microswitch 18; when the first permanent magnet 16 moves downward away from the second permanent magnet 17, the repulsive force therebetween is reduced, and the second permanent magnet 17 moves downward to disengage the microswitch 18. The position of the first spool assembly can therefore be detected by the microswitch 18.

Similarly, the position of the second valve core assembly can be detected through the second detection part, and then the working state of the valve at the moment is determined according to the positions of the first valve core assembly and the second valve core assembly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A two-position four-way electromagnetic valve is characterized by comprising a valve body, a first valve core assembly and a second valve core assembly;

the first valve core assembly and the second valve core assembly are respectively movably connected with the valve body, and the valve body is provided with a first valve cavity, a second valve cavity, a first interface, a second interface, a third interface and a fourth interface;

the first valve cavity and the second valve cavity are positioned on two sides of the valve body in a first direction, the third interface is communicated with the first valve cavity, the first valve core assembly can move in a second direction perpendicular to the first direction, and the third interface can be communicated with the first interface or the second interface through the first valve cavity by the movement of the first valve core assembly;

the fourth interface is communicated with the second valve cavity, the second valve spool assembly can move along the second direction, and the movement of the second valve spool assembly can enable the fourth interface to be communicated with the first interface or the second interface through the second valve cavity.

2. The two-position four-way electromagnetic valve according to claim 1, wherein the valve body is respectively provided with a first chamber and a second chamber at two sides of the first valve chamber in the second direction, and a first through hole and a second through hole are respectively formed at two ends of the first valve chamber in the second direction, and the first through hole is communicated with the first chamber, and the second through hole is communicated with the second chamber;

the second port is communicated with the first chamber, and the first port is communicated with the second chamber;

the first valve core assembly comprises a first valve disc, the first valve disc is movably arranged in the first valve cavity, and the first valve disc can move in the first valve cavity along the second direction to block the first through hole or the second through hole.

3. The two-position four-way solenoid valve according to claim 2, wherein a first protrusion protruding toward the first valve chamber is disposed around the outer side of the first through hole, and a second protrusion protruding toward the first valve chamber is disposed around the outer side of the second through hole;

a first sealing gasket is arranged at the position of the first valve disc opposite to the first protrusion, and a second sealing gasket is arranged at the position of the first valve disc opposite to the second protrusion;

the first valve disc is in sealing abutting joint with the first protrusion through the first sealing gasket, and the first valve disc is in sealing abutting joint with the second protrusion through the second sealing gasket.

4. The two-position four-way electromagnetic valve according to claim 2, wherein the valve body forms a third chamber and a fourth chamber on both sides of the second valve chamber in the second direction, respectively, and the second valve chamber communicates with the third chamber through a third through hole and communicates with the fourth chamber through a fourth through hole;

the second port is communicated with the third chamber, and the first port is communicated with the fourth chamber;

the second valve core assembly comprises a second valve rod, a third valve disc and a fourth valve disc, the third valve disc is movably arranged in the third chamber, the fourth valve disc is movably arranged in the fourth chamber, and the third valve disc and the fourth valve disc are connected through the second valve rod;

and the movement of the second valve core assembly can enable the third valve disc to seal and seal the third through hole, or enable the fourth valve disc to seal and seal the fourth through hole.

5. The two-position four-way solenoid valve according to claim 4, wherein a third protrusion protruding toward the third chamber is disposed around the outer side of the third through hole, a third sealing gasket is disposed at a position of the third valve disc opposite to the third protrusion, and the third valve disc is in sealing abutment with the third protrusion through the third sealing gasket;

the outer side of the fourth through hole is annularly provided with a fourth protrusion protruding towards the fourth cavity, a fourth sealing gasket is arranged at the position of the fourth valve disc opposite to the fourth protrusion, and the fourth valve disc is in sealing abutting connection with the fourth protrusion through the fourth sealing gasket.

6. The two-position, four-way solenoid valve of claim 4, wherein the first spool assembly further comprises a second valve disc and a first valve stem;

the second valve disc is movably arranged in the first chamber and is connected with the first valve disc through the first valve rod, so that the second valve disc and the first valve disc can move synchronously;

the outer side wall of the second valve disc is in sealing abutting connection with the inner side wall of the first chamber through a fifth sealing gasket, the first chamber is divided into a first rod cavity and a first non-rod cavity by the second valve disc, and the first rod cavity is communicated with the first valve cavity and the second interface.

7. The two-position, four-way solenoid valve of claim 6, wherein an outer sidewall of the third valve disc is sealingly abutted to an inner sidewall of the third chamber by a sixth gasket, the third chamber is divided into a third rod-containing chamber and a third rodless chamber by the third valve disc, and the third rod-containing chamber is in communication with the second valve chamber and the second port.

8. The two-position, four-way solenoid valve according to claim 7, wherein the valve body is formed with a pilot valve port, and the first port is in communication with the pilot valve port;

a pilot flow channel communicated with the pilot valve port is formed in the valve body, and the pilot flow channel can be communicated with the first rodless cavity and the third rodless cavity;

the two-position four-way electromagnetic valve is further provided with an electromagnetic assembly, the electromagnetic assembly is used for being electrically connected with an external power supply, and when the electromagnetic assembly is powered off, the movable iron core of the electromagnetic assembly can be closed to the pilot flow channel so as to cut off the communication between the pilot flow channel and the first rod-free cavity and the communication between the pilot flow channel and the third rod-free cavity.

9. The two-position, four-way solenoid valve of claim 6, wherein a first sensing member and a second sensing member are disposed within the valve body;

the first detection piece is used for detecting the position of the first valve core assembly, and the second detection piece is used for detecting the position of the second valve core assembly.

10. The two-position, four-way solenoid valve of claim 9, wherein the first and second detectors each comprise a micro switch, a first permanent magnet, and a second permanent magnet;

the first permanent magnet is fixedly arranged on the corresponding first valve core assembly or the corresponding second valve core assembly, the second permanent magnet is movably arranged on the valve body, the second permanent magnet is positioned on one side of the first permanent magnet in the second direction, and the microswitch is positioned on one side of the second permanent magnet, which is far away from the first permanent magnet;

the first permanent magnet and the second permanent magnet are opposite in ferromagnetic pole, so that a repulsive force exists between the first permanent magnet and the second permanent magnet;

when the first permanent magnet is close to the second permanent magnet, the second permanent magnet can be close to the microswitch to trigger the microswitch;

when the first permanent magnet is far away from the second permanent magnet, the second permanent magnet can be disengaged from the microswitch.

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