An electrically controllable one-way valve

Abstract

This application discloses an electrically controllable one-way valve, relating to the field of valve technology, comprising: a base, a valve cover, a valve core, and a spring; the base includes: a first connecting pipe, a first baffle, and an inlet pipe; the valve cover includes: a second connecting pipe, a second baffle, and an outlet pipe; a coil slot is provided on the second connecting pipe, and a coil is disposed in the coil slot; an electrical connector for power supply is provided on the second baffle; one end of the second connecting pipe is connected to one side of the second baffle, and the electrical connector is connected to the coil; the valve core includes: a third baffle, a valve core pipe with at least one flow hole, an annular mounting seat, and at least one guide block; the spring is disposed between the second baffle and the annular mounting seat. This application optimizes the spring and valve core structure, which can reduce gas-liquid flow resistance and improve the reliability of the one-way valve; it can open the one-way valve electrically and can discharge the medium downstream of the electrically controllable one-way valve.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to an electrically operable check valve. Background Technology

[0002] A check valve, also known as a non-return valve, is a component used in pipelines to achieve a one-way shut-off function for the medium. It enables the medium to flow in one direction in the pipeline without backflow. For example, when a check valve is applied to a hydraulic system, it can prevent the oil flow from flowing in the opposite direction; when a check valve is applied to a pneumatic system, it can prevent the compressed air from flowing in the opposite direction.

[0003] Traditional check valves control the flow direction of the medium and achieve one-way sealing by using a spring-driven valve core. However, the spring in a traditional check valve is usually located inside the valve core. During use, the internal spring increases gas-liquid flow resistance and easily attracts impurities in the fluid medium, causing the check valve to jam and fail to open. Differences in the material, diameter, pitch, and / or tempering process of the spring in a traditional check valve result in different spring forces, leading to variations in the opening force of the check valve. Even within the same batch of traditional check valves, while the spring material, diameter, pitch, and / or tempering process must be identical, production errors still exist, making it difficult to guarantee consistent spring force after production. Therefore, it is also difficult to guarantee a fixed opening force for the traditional check valve. Traditional check valves cannot precisely control the opening force according to actual opening force requirements.

[0004] Traditional check valves cannot be opened by electronic control or other means, and therefore cannot discharge the medium (e.g., gas or liquid) downstream of the check valve. For example, if a traditional check valve is installed at the front end of the gas collection pipe connected to the launch vehicle's gas pipe, and the launch is canceled, the traditional check valve cannot be opened, thus preventing the release of gas from the gas collection pipe downstream of the check valve.

[0005] Therefore, it is necessary to propose a brand-new electrically controllable check valve to solve the problems of traditional check valves. Summary of the Invention

[0006] The purpose of this application is to provide an electrically controllable check valve with optimized spring and valve core structure to reduce gas-liquid flow resistance; the electrically controllable check valve can be opened and the downstream medium (e.g., gas-liquid) can be discharged.

[0007] To achieve the above objectives, this application provides an electrically controllable one-way valve, comprising: a base, a valve cover, a valve core, and a spring; wherein, the base includes at least: a first connecting pipe, a first baffle, and an inlet pipe; one end of the first connecting pipe is connected to one side of the first baffle; one end of the inlet pipe is connected to the other side of the first baffle; the first baffle has an inlet through hole, through which the inlet pipe and the first connecting pipe are connected; the valve cover includes at least: a second connecting pipe, a second baffle, and an outlet pipe; a coil groove is provided on the second connecting pipe, and a coil is disposed in the coil groove; an electrical connector for power supply is provided on the second baffle; one end of the second connecting pipe is connected to one side of the second baffle, and the electrical connector is connected to the coil; the other end of the second connecting pipe is detachably connected to the other end of the first connecting pipe, and after connection, the base and the valve cover constitute a valve body shell with a receiving cavity; one end of the outlet pipe is connected to the other side of the second baffle; the second baffle has an outlet through hole, through which the outlet pipe and the first connecting pipe are connected; The second connecting pipe; the valve core includes at least: a third baffle, a valve core pipe with at least one flow hole, an annular mounting seat, and at least one guide block; the third baffle, valve core pipe, annular mounting seat, and / or guide block are made of magnetic material; the diameter of the third baffle is larger than the diameter of the inlet through hole, and the diameter of the third baffle is smaller than the diameter of the receiving cavity; the diameter of the annular mounting seat is larger than the diameter of the outlet pipe, the diameter of the annular mounting seat is smaller than the diameter of the receiving cavity, and the diameter of the annular mounting seat is larger than the diameter of the third baffle; one side of the third baffle is connected to one end of the valve core pipe; one side of the annular mounting seat is connected to the other end of the valve core pipe; at least one guide block is disposed on the outside of the valve core pipe; the valve core is slidably disposed in the receiving cavity, and the other side of the third baffle faces the inlet through hole, and the other side of the annular mounting seat faces the outlet through hole; one end of the spring is connected to or in contact with one side of the second baffle, and one end of the spring is located between the outlet through hole and the second connecting pipe; the other end of the spring is connected to or in contact with the other side of the annular mounting seat.

[0008] As shown above, a first connecting groove is provided on one side of the second baffle, and the first connecting groove is located between the outlet through hole and the second connecting pipe; one end of the spring is provided in the first connecting groove.

[0009] As shown above, a second connecting groove is provided on the other side of the annular mounting base, and the other end of the spring is located in the second connecting groove.

[0010] As shown above, when the guide block uses magnetic material, the magnetic material is an armature.

[0011] As shown above, there are multiple guide blocks, which are evenly spaced in a circle with the axis of the valve core pipe as the center line.

[0012] As shown above, the inner side of the guide block is connected to the outer side of the valve core pipe, one end of the guide block is connected to one side of the annular mounting seat, and the other end of the guide block is flush with the third baffle.

[0013] As shown above, a first sealing ring is provided on the other side of the third baffle. When the inlet through hole is closed, the valve core moves toward the inlet through hole, and the first sealing ring fits against one side of the first baffle.

[0014] As described above, the base also includes: a sealing pipe; the sealing pipe is located inside the first connecting pipe, one end of the sealing pipe is connected to one side of the first baffle, and the sealing pipe is aligned with the inlet through hole, the diameter of the sealing pipe is equal to the diameter of the inlet through hole; when the inlet through hole is closed, the valve core moves toward the inlet through hole, and the first sealing ring fits against the other end of the sealing pipe.

[0015] As shown above, a second sealing ring is provided on the second baffle, and the second sealing ring is located between the first connecting groove and the second connecting pipe. When the other end of the second connecting pipe is connected to the other end of the first connecting pipe, the other end of the first connecting pipe contacts the second sealing ring.

[0016] As shown above, the outer side of the other end of the first connecting pipe is provided with an external thread; the inner side of the other end of the second connecting pipe is provided with an internal thread that matches the external thread.

[0017] The beneficial effects achieved by this application are as follows:

[0018] (1) The electrically controllable check valve of this application optimizes the structure of the spring and valve core. By placing the spring on the periphery of the valve core, the flow resistance of gas and liquid can be reduced. When gas or liquid flows, the erosion of the spring in the electrically controllable check valve of this application is less than that of the spring in a traditional check valve, thereby improving the reliability of the check valve.

[0019] (2) The electrically controllable check valve of this application can be opened by electric control (i.e., by supplying power to the coil, the coil generates a magnetic field, and the magnetic field attracts the valve core to move away from the inlet orifice, thereby realizing the electric opening of the check valve), and can discharge the medium (e.g., gas or liquid) downstream of the electrically controllable check valve.

[0020] (3) When the electrically controllable one-way valve of this application is used in launch vehicles or ground equipment, the working force of the one-way valve can be adjusted. For example, by controlling the power supply strength of the coil, the magnitude of the magnetic field strength generated by the coil can be changed, and by changing the direction of the coil current, the direction of the magnetic field can be changed. After the magnetic field generated by the coil acts on the valve core, when only the guide block or the annular mounting seat of the valve core is made of magnetic material (e.g., magnet), the magnetic field can repel the guide block or the annular mounting seat to achieve the purpose of adjusting the working force when the valve core is closed. When the entire valve core is made of magnetic material or only the guide block or the annular mounting seat of the valve core is made of magnetic material, and other parts are made of non-magnetic material, the magnetic field can attract the magnetic material of the valve core or attract the guide block or the annular mounting seat on the valve core to achieve the purpose of adjusting the working force when the valve core is opened. The working force of the one-way valve can be adjusted by selecting a valve core with a part made of magnetic material or a valve core with the entire structure made of magnetic material. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 A perspective view of one embodiment of an electrically controllable check valve;

[0023] Figure 2 A cross-sectional view of one embodiment of an electrically operable check valve;

[0024] Figure 3 A perspective view of one embodiment of the base;

[0025] Figure 4 A cross-sectional view of one embodiment of the base;

[0026] Figure 5 A perspective view of one embodiment of the valve core;

[0027] Figure 6 This is a cross-sectional view of one embodiment of the valve core;

[0028] Figure 7 A perspective view of one embodiment of the valve cover;

[0029] Figure 8 This is a cross-sectional view of one embodiment of the valve cover. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figure 1-8 As shown, this application provides an electrically controllable one-way valve, comprising: a base 1, a valve cover 2, a valve core 3, and a spring 4. The base 1 includes at least: a first connecting pipe 11, a first baffle 12, and an inlet pipe 13; one end of the first connecting pipe 11 is connected to one side of the first baffle 12; one end of the inlet pipe 13 is connected to the other side of the first baffle 12; the first baffle 12 has an inlet through-hole, through which the inlet pipe 13 and the first connecting pipe 11 are connected. The valve cover 2 includes at least: a second connecting pipe 21, a second baffle 22, and an outlet pipe 23; a coil groove 211 is provided on the second connecting pipe 21, and a coil is disposed in the coil groove 211; an electrical connector 221 for power supply is provided on the second baffle 22; one end of the second connecting pipe 21 is connected to one side of the second baffle 22, and the electrical connector 221 is connected to the coil; the other end of the second connecting pipe 21 is detachably connected to the other end of the first connecting pipe 11. After connection, the base 1 and the valve cover 2 constitute a valve body shell with a receiving cavity 5; one end of the outlet pipe 23 is connected to the other side of the second baffle 22; an outlet through hole is provided on the second baffle 22, through which the outlet pipe 23 and the second connecting pipe 21 are connected. The valve core 3 includes at least: a third baffle 31, a valve core pipe 32 with at least one flow hole 321, an annular mounting seat 33, and at least one guide block 34; the third baffle 31, valve core pipe 32, annular mounting seat 33, and / or guide block 34 are made of magnetic material; the diameter of the third baffle 31 is larger than the diameter of the inlet through hole and smaller than the diameter of the receiving cavity 5; the diameter of the annular mounting seat 33 is larger than the diameter of the outlet pipe 23 and smaller than the diameter of the receiving cavity 5, and larger than the diameter of the third baffle 31; one side of the third baffle 31 is connected to one end of the valve core pipe 32; one side of the annular mounting seat 33 is connected to the other end of the valve core pipe 32; at least one guide block 34 is disposed on the outside of the valve core pipe 32; the valve core 3 is slidably disposed in the receiving cavity 5, and the other side of the third baffle 31 faces the inlet through hole, and the other side of the annular mounting seat 33 faces the outlet through hole. One end of the spring 4 is connected to or in contact with one side of the second baffle 22, and one end of the spring 4 is located between the outlet through hole and the second connecting pipe 21; the other end of the spring 4 is connected to or in contact with the other side of the annular mounting seat 33.

[0032] Specifically, when the coil is not energized and there is no pressure difference between the inlet and outlet through-holes, the valve core 3 moves towards the inlet through-hole under the elastic force of the spring 4, and the other side of the third baffle 31 abuts against one side of the first baffle 12, thereby closing the inlet through-hole. This application can close the check valve by the elastic force of the spring 4. Furthermore, this application optimizes the structure of the spring 4 and the valve core 3, placing the spring 4 on the periphery of the valve core 3, which reduces gas-liquid flow resistance. When gas or liquid flows, the erosion of the spring 4 in the electrically openable check valve of this application is less than that in a traditional check valve, thus improving the reliability of the check valve. When the coil is not energized and the pressure at the inlet orifice is greater than the elastic force, the spring 4 is in a compressed state, the valve core 3 moves away from the inlet orifice, and the other side of the third baffle 31 separates from one side of the first baffle 12, thereby opening the inlet orifice. The medium (e.g., gas or liquid) flows sequentially through the inlet pipe 13, the inlet orifice, the receiving cavity 5, the flow hole 321, the valve core pipe 32, the inlet orifice, and the outlet pipe 23.

[0033] When there is no pressure difference between the inlet and outlet through-holes, the spring 4 is in an extended state. The electrical connector 221 is connected to the power supply and supplies power to the coil. After the coil is energized, it generates a magnetic field. The part of the valve core 3 made of magnetic material (i.e., the third baffle 31, the valve core pipe 32, the annular mounting seat 33, and / or the guide block 34) is in the magnetic field generated by the coil. Under the action of the magnetic force, the valve core 3 moves away from the inlet through-hole. The other side of the third baffle 31 separates from one side of the first baffle 12, thereby opening the inlet through-hole. That is, the energized coil can attract the valve core 3, which has magnetic material, to move closer to the outlet through-hole, thereby overcoming the elastic force and opening the inlet through-hole. This application can adjust the working force of the check valve through the electrical connector 221 and the coil. For example, the working force of the check valve can be adjusted by energizing or de-energizing the coil. This application can open the electrically controllable check valve through electrical control, thereby discharging the medium (e.g., gas or liquid) downstream of the electrically controllable check valve.

[0034] Furthermore, the specific values ​​of the diameter of the inlet pipe 13, the diameter of the inlet through hole, and the diameter of the first connecting pipe 11 are set according to the actual situation. In this application, it is preferred that the diameter of the inlet pipe 13 is equal to the diameter of the inlet through hole, and the diameter of the first connecting pipe 11 is greater than the diameter of the inlet through hole.

[0035] Furthermore, the diameter of the outlet pipe 23, the diameter of the outlet through hole, and the diameter of the second connecting pipe 21 are set according to the actual situation. In this application, it is preferred that the diameter of the outlet pipe 23 is equal to the diameter of the outlet through hole, and the diameter of the second connecting pipe 21 is greater than the diameter of the outlet through hole.

[0036] Furthermore, the base 1 can be a one-piece structure or a separate structure, and this application preferably uses a one-piece structure.

[0037] Furthermore, the valve cover 2 can be an integral structure or a separate structure, and this application preferably uses an integral structure.

[0038] Furthermore, the valve core 3 can be an integral structure or a separate structure, and this application preferably uses an integral structure.

[0039] Furthermore, such as Figure 2 and Figure 8 As shown, a first connecting groove 222 is provided on one side of the second baffle 22, and the first connecting groove 222 is located between the outlet through hole and the second connecting pipe 21; one end of the spring 4 is provided in the first connecting groove 222.

[0040] Furthermore, as one embodiment, one end of the spring 4 is engaged in the first connecting groove 222, which facilitates the installation, disassembly and replacement of the spring 4.

[0041] Furthermore, as another embodiment, one end of the spring 4 is fixed in the first connecting groove 222, which can prevent one end of the spring 4 from popping out of the first connecting groove 222 under the action of force.

[0042] Furthermore, such as Figure 2 , Figure 5 and Figure 6 As shown, a second connecting groove 331 is provided on the other side of the annular mounting base 33, and the other end of the spring 4 is disposed in the second connecting groove 331.

[0043] The annular mounting base 33 has a guiding function, which can effectively prevent the valve core 3 from shaking in the radial direction of the valve core pipeline 32 when it moves.

[0044] Furthermore, as one embodiment, the other end of the spring 4 is engaged in the second connecting groove 331, which facilitates the installation, disassembly and replacement of the spring 4.

[0045] Furthermore, as another embodiment, the other end of the spring 4 is fixed in the second connecting groove 331, which can prevent the other end of the spring 4 from popping out of the second connecting groove 331 under the action of force.

[0046] Furthermore, the third baffle 31, valve core pipe 32, annular mounting seat 33 and guide block 34 are all made of magnetic materials, that is, the entire structure of valve core 3 is made of magnetic materials, which can improve the magnetism of valve core 3.

[0047] Specifically, the magnetic material is an existing material, such as an armature.

[0048] Furthermore, any one, any two, or any three of the third baffle 31, valve core pipe 32, annular mounting seat 33, and guide block 34 are made of magnetic materials, that is, a part of the structure of valve core 3 is made of magnetic materials, which can improve the magnetism of valve core 3.

[0049] Preferably, only the guide block 34 in the valve core 3 is made of magnetic material, while the third baffle 31, valve core pipe 32, and annular mounting seat 33 are all made of existing non-magnetic materials, such as plastic, non-magnetic steel, or copper alloy. When the guide block 34 is made of magnetic material, the magnetic material is an armature, but it is not limited to an armature. It can also be pure iron, silicon steel sheet, permalloy, AlNiCo alloy, ferrite permanent magnet material, or neodymium iron boron permanent magnet material, etc. In this application, an armature is preferred.

[0050] Furthermore, such as Figure 2 , Figure 5 and Figure 6 As shown. There are multiple guide blocks 34.

[0051] Specifically, the number of guide blocks 34 is set according to the actual situation, and four are preferred in this application.

[0052] Furthermore, such as Figure 5 As shown, the specific arrangement of the multiple guide blocks 34 depends on the actual situation. In this application, the preferred arrangement is that the multiple guide blocks 34 are arranged at uniform intervals around the axis of the valve core pipe 32.

[0053] Specifically, the guide block 34 effectively prevents the valve core 3 from wobbling in the radial direction of the valve core pipe 32 when it moves. The combined guiding function of the annular mounting base 33 and the guide block 34 further improves the stability of the valve core 3 during movement.

[0054] Furthermore, such as Figure 5 and Figure 6 As shown, the specific shape of the guide block 34 is set according to the actual situation, and the preferred shape in this application is an arc-shaped plate.

[0055] Furthermore, the inner side of the guide block 34 is connected to the outer side of the valve core pipe 32, one end of the guide block 34 is connected to one side of the annular mounting seat 33, and the other end of the guide block 34 is flush with the third baffle 31.

[0056] Furthermore, there are multiple flow holes 321.

[0057] Specifically, the number of flow holes 321 is set according to the actual situation, and in this application, four are preferred.

[0058] Furthermore, the specific arrangement of the multiple flow holes 321 depends on the actual situation. In this application, it is preferred that the multiple flow holes 321 are arranged at uniform intervals around the axis of the valve core pipe 32.

[0059] Furthermore, multiple flow holes 321 are located between adjacent guide blocks 34, and the adjacent guide blocks 34 form a flow channel to facilitate the flow of medium into the flow holes 321.

[0060] Furthermore, the flow hole 321 is an inclined hole with an angle, which can guide the medium to flow along a specific path, thereby optimizing the medium distribution in the electrically controllable check valve.

[0061] Specifically, the tilt angle of the flow hole 321 is set according to the actual situation.

[0062] Furthermore, such as Figure 2 and Figure 6 As shown, a first sealing ring 311 is provided on the other side of the third baffle 31. When the inlet through hole is closed, the valve core 3 moves toward the inlet through hole, and the first sealing ring 311 fits against one side of the first baffle 12.

[0063] Furthermore, the base 1 also includes: a sealing pipe 14; the sealing pipe 14 is located inside the first connecting pipe 11, one end of the sealing pipe 14 is connected to one side of the first baffle 12, and the sealing pipe 14 is aligned with the inlet through hole, the diameter of the sealing pipe 14 is equal to the diameter of the inlet through hole; when the inlet through hole is closed, the valve core 3 moves toward the inlet through hole, and the first sealing ring 311 fits against the other end of the sealing pipe 14.

[0064] Furthermore, such as Figure 2 and Figure 8 As shown, a second sealing ring 223 is provided on the second baffle 22, and the second sealing ring 223 is located between the first connecting groove 222 and the second connecting pipe 21. When the other end of the second connecting pipe 21 is connected to the other end of the first connecting pipe 11, the other end of the first connecting pipe 11 contacts the second sealing ring 223.

[0065] Specifically, the second sealing ring 223 ensures the sealing of the connection between the second connecting pipe 21 and the first connecting pipe 11.

[0066] Furthermore, the other end of the first connecting pipe 11 is provided with a sealing groove that is compatible with the second sealing ring 223. When the other end of the second connecting pipe 21 is connected to the other end of the first connecting pipe 11, the sealing groove of the first connecting pipe 11 cooperates with the second sealing ring 223 to achieve a seal.

[0067] Furthermore, such as Figure 3 , Figure 4 and Figure 8As shown, the outer side of the other end of the first connecting pipe 11 is provided with an external thread 111; the inner side of the other end of the second connecting pipe 21 is provided with an internal thread 212 that is compatible with the external thread 111.

[0068] Specifically, the first connecting pipe 11 and the second connecting pipe 21 are connected by threads, but not limited to threads. In this application, a threaded connection is preferred to facilitate installation, disassembly, maintenance and replacement.

[0069] Furthermore, the coil groove 211 is located between the internal thread 212 and the outer side of the second connecting pipe 21.

[0070] Furthermore, a first protrusion 112 is provided on the outer side of the end where the first connecting pipe 11 connects to the first baffle 12 to facilitate the connection operation.

[0071] Specifically, the shape of the first protrusion 112 is set according to the actual situation.

[0072] Furthermore, such as Figure 1 and Figure 7 As shown, a second protrusion 213 is provided on the outer side of the end where the second connecting pipe 21 is connected to the second baffle 22, which facilitates the connection operation.

[0073] Specifically, the shape of the second protrusion 213 is set according to the actual situation.

[0074] Furthermore, springs made of materials with different strengths can be selected according to different one-way valve opening pressures.

[0075] Specifically, the material and dimensions of spring 4 are set according to the actual situation.

[0076] The beneficial effects achieved by this application are as follows:

[0077] (1) The electrically controllable check valve of this application optimizes the structure of the spring and valve core. By placing the spring on the periphery of the valve core, the flow resistance of gas and liquid can be reduced. When gas or liquid flows, the erosion of the spring in the electrically controllable check valve of this application is less than that of the spring in a traditional check valve, thereby improving the reliability of the check valve.

[0078] (2) The electrically controllable check valve of this application can be opened by electric control and can discharge the medium (e.g., gas or liquid) downstream of the electrically controllable check valve.

[0079] (3) When the electrically controllable one-way valve of this application is used in launch vehicles or ground equipment, the working force of the one-way valve can be adjusted. For example, by controlling the power supply strength of the coil, the magnitude of the magnetic field strength generated by the coil can be changed, and by changing the direction of the coil current, the direction of the magnetic field can be changed. After the magnetic field generated by the coil acts on the valve core, when only the guide block or the annular mounting seat of the valve core is made of magnetic material (e.g., magnet), the magnetic field can repel the guide block or the annular mounting seat to achieve the purpose of adjusting the working force when the valve core is closed. When the entire valve core is made of magnetic material or only the guide block or the annular mounting seat of the valve core is made of magnetic material, and other parts are made of non-magnetic material, the magnetic field can attract the magnetic material of the valve core or attract the guide block or the annular mounting seat on the valve core to achieve the purpose of adjusting the working force when the valve core is opened. The working force of the one-way valve can be adjusted by selecting a valve core with a part made of magnetic material or a valve core with the entire structure made of magnetic material.

[0080] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the scope of protection of this application is intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application. Obviously, those skilled in the art can make various alterations and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of protection of this application and its equivalents, this application also intends to include these modifications and variations.

Claims

1. A one-way valve that can be opened electrically, characterized in that, include: Base, valve cover, valve core, and spring; The base includes at least: a first connecting pipe, a first baffle, and an inlet pipe; One end of the first connecting pipe is connected to one side of the first baffle; One end of the inlet pipe is connected to the other side of the first baffle. The first baffle is provided with an inlet through hole, through which the inlet pipe and the first connecting pipe are connected; The valve cover includes at least: a second connecting pipe, a second baffle, and an outlet pipe; The second connecting pipe has a coil slot, and the coil is placed in the coil slot; the second baffle is provided with an electrical connector for power supply. One end of the second connecting pipe is connected to one side of the second baffle, and the electrical connector is connected to the coil; The other end of the second connecting pipe is detachably connected to the other end of the first connecting pipe. After connection, the base and the valve cover constitute a valve body shell with a receiving cavity. One end of the outlet pipe is connected to the other side of the second baffle. The second baffle is provided with an outlet through hole, through which the outlet pipe and the second connecting pipe are connected; The valve core includes at least: a third baffle, a valve core pipe with at least one flow hole, an annular mounting seat, and at least one guide block; the third baffle, valve core pipe, annular mounting seat, and / or guide block are made of magnetic material; The diameter of the third baffle is larger than the diameter of the inlet through hole, and the diameter of the third baffle is smaller than the diameter of the receiving cavity; the diameter of the annular mounting seat is larger than the diameter of the outlet pipe, the diameter of the annular mounting seat is smaller than the diameter of the receiving cavity, and the diameter of the annular mounting seat is larger than the diameter of the third baffle. One side of the third baffle is connected to one end of the valve core pipe; One side of the annular mounting seat is connected to the other end of the valve core pipe; At least one guide block is disposed on the outside of the valve core pipe; The valve core is slidably disposed in the receiving cavity, with the other side of the third baffle facing the inlet through hole and the other side of the annular mounting seat facing the outlet through hole; One end of the spring is connected to or in contact with one side of the second baffle, and one end of the spring is located between the outlet through hole and the second connecting pipe; the other end of the spring is connected to or in contact with the other side of the annular mounting seat.

2. The electrically controllable check valve according to claim 1, characterized in that, The second baffle has a first connecting groove on one side, and the first connecting groove is located between the outlet through hole and the second connecting pipe; one end of the spring is located in the first connecting groove.

3. The electrically controllable check valve according to claim 1, characterized in that, A second connecting groove is provided on the other side of the annular mounting base, and the other end of the spring is located in the second connecting groove.

4. The electrically controllable check valve according to claim 1, characterized in that, When the guide block is made of magnetic material, the magnetic material is an armature.

5. The electrically controllable check valve according to claim 1, characterized in that, There are multiple guide blocks, which are evenly spaced in a circle with the axis of the valve core pipe as the center line.

6. The electrically controllable check valve according to claim 5, characterized in that, The inner side of the guide block is connected to the outer side of the valve core pipe, one end of the guide block is connected to one side of the annular mounting seat, and the other end of the guide block is flush with the third baffle.

7. The electrically controllable check valve according to claim 1, characterized in that, A first sealing ring is provided on the other side of the third baffle. When the inlet through hole is closed, the valve core moves toward the inlet through hole, and the first sealing ring fits against one side of the first baffle.

8. The electrically controllable check valve according to claim 7, characterized in that, The base also includes: a sealing pipe; the sealing pipe is located inside the first connecting pipe, one end of the sealing pipe is connected to one side of the first baffle, and the sealing pipe is aligned with the inlet through hole, and the diameter of the sealing pipe is equal to the diameter of the inlet through hole; When the inlet orifice is closed, the valve core moves toward the inlet orifice, and the first sealing ring fits against the other end of the sealing pipe.

9. The electrically controllable check valve according to claim 1, characterized in that, The second baffle is provided with a second sealing ring, which is located between the first connecting groove and the second connecting pipe. When the other end of the second connecting pipe is connected to the other end of the first connecting pipe, the other end of the first connecting pipe comes into contact with the second sealing ring.

10. The electrically controllable check valve according to claim 1, characterized in that, The other end of the first connecting pipe is provided with an external thread; The other end of the second connecting pipe is provided with an internal thread that is compatible with the external thread.

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