An electromagnetic valve

Abstract

This invention discloses an electromagnetic valve and its dual-pump system, comprising: an inlet, an outlet, and a chamber, wherein the inlet and outlet are respectively connected to the chamber. The inlet is connected to a pipeline, and the outlet is connected to the outside. It also includes: an electromagnetic component and a sealing element, the sealing element being disposed within the chamber and operably positioned in a first position and a second position. When the electromagnetic component is energized, it drives the sealing element to the first position, where it engages with the inlet. When the electromagnetic component is de-energized, it drives the sealing element to the second position. Furthermore, when liquid flows through the pipeline, the liquid enters the chamber through the inlet to seal the outlet. When no liquid flows through the pipeline, airflow from the outside causes the sealing element to deform through the outlet, connecting the inlet and outlet. This invention prevents liquid from the pipeline from entering the equipment and prevents liquid from contacting the elastic element.

Description

Technical Field

[0001] This invention relates to the technical field of valve bodies, and more particularly to an electromagnetic valve. Background Technology

[0002] In the current technology, when the solenoid valve is de-energized, liquid in the pipeline will enter the solenoid valve and be discharged from the exhaust port. This discharge will affect the service life of the equipment with the solenoid valve installed. Moreover, the elastic element in the solenoid valve is currently located between the stationary iron core and the moving iron core. After the liquid enters the solenoid valve, it will come into direct contact with the elastic element, causing the elastic element to rust. In some cases, a small amount of rust water remaining in the solenoid valve will flow back into the pipeline. Furthermore, the liquid that enters will cause scale to form on the surface of the moving iron core and the spring, affecting the movement of the moving iron core. Summary of the Invention

[0003] In view of the above-mentioned problems of existing solenoid valves, the present invention aims to provide a solenoid valve that can prevent liquid in the pipeline from flowing into the equipment and prevent liquid from contacting the elastic element.

[0004] The specific technical solution is as follows:

[0005] An electromagnetic valve includes an inlet, an outlet, and a chamber, wherein the inlet and the outlet are respectively connected to the chamber, the inlet is connected to a pipeline, and the outlet is connected to the outside.

[0006] It also includes: an electromagnetic component and a sealing element, the sealing element being movably disposed within the cavity, the sealing element being operably positioned in a first position and a second position;

[0007] When the electromagnetic component is energized, the electromagnetic component drives the sealing member to the first position, and the sealing member cooperates with the inlet sealing member;

[0008] When the electromagnetic component is de-energized, it drives the sealing member to the second position. When liquid is introduced into the pipeline, the liquid enters the chamber through the inlet to seal the sealing member and the outlet. When no liquid is introduced into the pipeline, the airflow from the outside air passes through the outlet to deform the sealing member so that the inlet and the outlet are connected.

[0009] In the aforementioned electromagnetic valve, the sealing element has a flow-through structure. When no liquid is introduced into the pipeline, the airflow from the outside drives the sealing element to deform through the outlet, and the flow-through structure connects the inlet and the outlet.

[0010] In the aforementioned electromagnetic valve, the flow passage structure has a gap between the outer periphery of the sealing member and the inner wall of the chamber. When the airflow in the outside world passes through the outlet and drives the sealing member to deform, the airflow connects with the inlet through the gap.

[0011] In the aforementioned electromagnetic valve, the flow passage structure is such that the sealing member has at least one flow passage hole. When the airflow in the outside environment passes through the outlet and drives the sealing member to deform, the airflow communicates with the inlet through the flow passage hole.

[0012] In the aforementioned electromagnetic valve, the sealing component includes an installation sealing part and a deformable sealing part connected to each other. The deformable sealing part is disposed on the outer periphery of the installation sealing part, and a gap is formed between the outer periphery of the deformable sealing part and the inner periphery of the chamber. The deformable sealing part covers the outlet, and the flow hole is disposed on the deformable sealing part. The outlet is located between the gap and the flow hole.

[0013] In the aforementioned electromagnetic valve, when the electromagnetic component is energized, the electromagnetic component drives the sealing member to the first position, and the mounting sealing part cooperates with the inlet sealing part;

[0014] When the electromagnetic component is de-energized, it drives the sealing member to the second position. When liquid is introduced into the pipeline, the liquid enters the chamber through the inlet to seal the deformable sealing part with the outlet. When no liquid is introduced into the pipeline, the airflow from the outside drives the deformable sealing part to deform through the outlet, so that the inlet connects to the outlet through the gap and / or the flow hole.

[0015] In the aforementioned electromagnetic valve, the deformable sealing part is provided with a plurality of flow holes, and the plurality of flow holes are arranged at equal intervals along the circumferential direction of the deformable sealing part.

[0016] The aforementioned solenoid valve, wherein the electromagnetic component includes:

[0017] A skeleton having a first accommodating cavity and a second accommodating cavity that are interconnected, with a step formed between the first accommodating cavity and the second accommodating cavity;

[0018] A coil, the coil being disposed on the outside of the frame;

[0019] A stationary iron core is fixedly disposed within the first accommodating cavity, and the inlet penetrates the stationary iron core.

[0020] A moving iron core is movably disposed within the second accommodating cavity. The outlet is formed between the outer periphery of the moving iron core and the inner periphery of the second accommodating cavity. The first accommodating cavity is located between the stationary iron core and the moving iron core to form the chamber. The sealing member is installed on the moving iron core.

[0021] An elastic element is provided between the moving iron core and the frame, and the elastic element uses its own elastic force to reset the moving iron core.

[0022] In the aforementioned electromagnetic valve, when liquid is introduced into the pipeline, the liquid enters the chamber through the inlet, causing the deformable sealing part to cover the step. The deformable sealing part is in a planar state, the end of the moving iron core is sealed and engaged with the flow hole, and the deformable sealing part is sealed and engaged with the outlet.

[0023] When no liquid is flowing into the pipeline, the airflow from the outside drives the deformable sealing part to deform through the outlet, and the deformable sealing part is at least partially bent so that the inlet is connected to the outlet through the gap and / or the flow hole.

[0024] In the aforementioned electromagnetic valve, the moving iron core has a first mounting cavity and a second mounting cavity that are interconnected. The mounting and sealing part is installed in the first mounting cavity, and the elastic element is installed in the second mounting cavity. The elastic element is a tension spring, one end of which is confined within the first mounting cavity. A pull rod is provided on the frame, and the other end of the tension spring is confined within the pull rod.

[0025] The mounting and sealing part is installed at the opening of the first mounting cavity, and the mounting and sealing part is in a sealing fit with the opening of the first mounting cavity;

[0026] The pull rod is located at the end of the second accommodating cavity away from the first accommodating cavity, and the other end of the tension spring is hung on the pull rod;

[0027] The moving iron core is limited by the pull rod.

[0028] The positive effects of the above technical solution compared with the existing technology are:

[0029] This invention incorporates a sealing element within the solenoid valve. When liquid flows into the solenoid valve, the sealing element blocks the outlet, preventing liquid from flowing into the equipment equipped with the solenoid valve. Furthermore, the sealing element isolates the elastic element from the liquid, preventing liquid from contacting the moving iron core and the elastic element, thus preventing scale buildup on their surfaces. Therefore, it does not affect the movement of the moving iron core and improves the service life of the solenoid valve. Attached Figure Description

[0030] Figure 1 This is a cross-sectional view of the overall structure of an electromagnetic valve according to the present invention;

[0031] Figure 2 This invention relates to an electromagnetic valve. Figure 1 Enlarged view of point A in the middle;

[0032] Figure 3 This is an isometric sectional view of the overall structure of an electromagnetic valve according to the present invention;

[0033] Figure 4 This invention relates to an electromagnetic valve. Figure 3 Enlarged view at point B in the middle;

[0034] Figure 5 This is a schematic diagram of the structure of a sealing component for an electromagnetic valve according to the present invention;

[0035] In the attached drawings: 1. Inlet; 2. Outlet; 3. Chamber; 4. Pipeline; 5. Electromagnetic assembly; 6. Sealing element; 7. Gap; 8. Flow hole; 9. Sealing part; 10. Deformable sealing part; 11. Frame; 12. Coil; 13. Stationary iron core; 14. Moving iron core; 15. Elastic element; 16. First receiving cavity; 17. Second receiving cavity; 18. Step; 19. First mounting cavity; 20. Second mounting cavity; 21. Pull rod; 22. Outer shell. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0037] Figure 1 This is a cross-sectional view of the overall structure of an electromagnetic valve according to the present invention;

[0038] Figure 2 This invention relates to an electromagnetic valve. Figure 1 Enlarged view of point A in the middle;

[0039] Figure 3 This is an isometric sectional view of the overall structure of an electromagnetic valve according to the present invention;

[0040] Figure 4 This invention relates to an electromagnetic valve. Figure 3 Enlarged view at point B in the middle;

[0041] Figure 5 This is a schematic diagram of the structure of a sealing component for an electromagnetic valve according to the present invention, as shown below. Figures 1 to 5 As shown, a preferred embodiment of the electromagnetic valve is illustrated, comprising: an inlet 1, an outlet 2, and a chamber 3. The inlet 1 and the outlet 2 are respectively connected to the chamber 3. The inlet 1 is connected to a pipeline 4, and the outlet 2 is connected to the outside.

[0042] Furthermore, in a preferred embodiment, the electromagnetic valve further includes an electromagnetic component 5 and a sealing element 6, the sealing element 6 being movably disposed within the chamber 3, and the sealing element 6 being operably positioned in a first position and a second position.

[0043] Furthermore, as a preferred embodiment, when the electromagnetic component 5 is energized, the electromagnetic component 5 drives the sealing component 6 to the first position, and the sealing component 6 cooperates with the inlet 1 to seal it.

[0044] When the electromagnetic component 5 is de-energized, the electromagnetic component 5 drives the sealing component 6 to the second position, and the sealing component 6 is separated from the inlet 1. When liquid flows into the pipeline 4, the liquid enters the chamber 3 through the inlet 1 to seal the sealing component 6 and the outlet 2. When no liquid flows into the pipeline 4, the airflow in the outside air passes through the outlet 2 to deform the sealing component 6 so that the inlet 1 and the outlet 2 are connected.

[0045] Furthermore, as a preferred embodiment, the plugging component 6 has a flow-through structure. When no liquid is introduced into the pipeline 4, the airflow from the outside drives the plugging component 6 to deform through the outlet 2, and the flow-through structure connects the inlet 1 and the outlet 2.

[0046] Furthermore, as a preferred embodiment, the flow passage structure is a gap 7 between the outer periphery of the sealing member 6 and the inner wall of the chamber 3. When the airflow in the outside world passes through the outlet 2 and drives the sealing member 6 to deform, the airflow connects with the inlet 1 through the gap 7.

[0047] Furthermore, as a preferred embodiment, the flow passage structure has at least one flow passage hole 8 on the sealing member 6. When the airflow in the outside environment passes through the outlet 2 and drives the sealing member 6 to deform, the airflow is connected to the inlet 1 through the flow passage hole 8.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0049] In addition to the above, the present invention also has the following embodiments:

[0050] In further embodiments of the present invention, please continue to refer to Figures 1 to 5 As shown, the sealing component 6 includes an installation sealing part 9 and a deformable sealing part 10 connected to each other. The deformable sealing part 10 is disposed on the outer periphery of the installation sealing part 9. A gap 7 is formed between the outer periphery of the deformable sealing part 10 and the inner periphery of the chamber 3. The deformable sealing part 10 covers the outlet 2. A flow hole 8 is disposed on the deformable sealing part 10. The outlet 2 is located between the gap 7 and the flow hole 8.

[0051] Preferably, the installation sealing part 9 and the deformable sealing part 10 are an integral structure.

[0052] Preferably, the sealing component 6 is a flexible component, which may be a rubber component.

[0053] In a further embodiment of the present invention, when the electromagnetic component 5 is energized, the electromagnetic component 5 drives the sealing component 6 to a first position, and the mounting sealing part 9 cooperates with the inlet 1 to seal it.

[0054] When the electromagnetic component 5 is de-energized, the electromagnetic component 5 drives the sealing component 6 to the second position. When liquid is introduced into the pipeline 4, the liquid enters the chamber 3 through the inlet 1 to seal the deformable sealing part 10 and the outlet 2. When no liquid is introduced into the pipeline 4, the airflow in the outside drives the deformable sealing part 10 to deform through the outlet 2, so that the inlet 1 is connected to the outlet 2 through the gap 7 and / or the flow hole 8.

[0055] In a further embodiment of the present invention, the deformable sealing part 10 is provided with a plurality of flow holes 8, and the plurality of flow holes 8 are arranged at equal intervals along the circumferential direction of the deformable sealing part 10.

[0056] In a further embodiment of the present invention, the electromagnetic component 5 includes: a frame 11, a coil 12, a stationary iron core 13, a moving iron core 14, and an elastic element 15. The frame 11 has a first accommodating cavity 16 and a second accommodating cavity 17 that are interconnected. A step 18 is formed between the first accommodating cavity 16 and the second accommodating cavity 17. The coil 12 is disposed on the outside of the frame 11. The stationary iron core 13 is fixedly disposed in the first accommodating cavity 17. An inlet 1 passes through the stationary iron core 13. The moving iron core 14 is movably disposed in the second accommodating cavity 17. An outlet 2 is formed between the outer periphery of the moving iron core 14 and the inner periphery of the second accommodating cavity 17. The first accommodating cavity 16 is located between the stationary iron core 13 and the moving iron core 14 to form a chamber 3. A sealing element 6 is installed on the moving iron core 14. The elastic element 15 is disposed between the moving iron core 14 and the frame 11. The elastic element 15 uses its own elastic force to reset the moving iron core 14.

[0057] In a further embodiment of the present invention, when liquid is introduced into the pipeline 4, the liquid enters the chamber 3 through the inlet 1 so that the deformable sealing part 10 covers the step 18, the deformable sealing part 10 is in a planar state, the end of the moving iron core 14 is sealed and cooperated with the flow hole 8, and the deformable sealing part 10 is sealed and cooperated with the outlet 2.

[0058] When no liquid is introduced into the pipeline 4, the airflow from the outside drives the deformable sealing part 10 to deform through the outlet 2. The deformable sealing part 10 is at least partially bent so that the inlet 1 is connected to the outlet 2 through the gap 7 and / or the flow hole 8.

[0059] In a further embodiment of the present invention, the moving iron core 14 has a first mounting cavity 19 and a second mounting cavity 20 that are interconnected. The mounting sealing part 9 is installed in the first mounting cavity 19, and the elastic element 15 is installed in the second mounting cavity 20. The elastic element 15 is a tension spring, one end of which is limited to the first mounting cavity 19. A pull rod 21 is provided on the frame, and the other end of the tension spring is limited to the pull rod 21.

[0060] Preferably, the electromagnetic component 5 further includes: a housing 22, and a frame 11 installed inside the housing 22.

[0061] In a further embodiment of the present invention, the mounting and sealing part 9 is installed at the opening of the first mounting cavity 19, and the mounting and sealing part 9 is sealed to the opening of the first mounting cavity 19.

[0062] In a further embodiment of the present invention, the pull rod 21 is disposed at the end of the second accommodating cavity 20 away from the first accommodating cavity 19, and the other end of the tension spring is hung on the pull rod 21.

[0063] In a further embodiment of the present invention, the moving iron core 14 is limited to the pull rod 21.

[0064] Preferably, the moving iron core 14 is operably positioned in the third and fourth positions. When the moving iron core 14 is in the third position, the moving iron core 14 extends into the first receiving cavity 19, and the sealing part 9 is installed and sealed in conjunction with the inlet 1. When the moving iron core 14 is in the fourth position, the section of the moving iron core 14 away from the stationary iron core 13 is limited in conjunction with the pull rod 21.

[0065] When the electromagnetic component 5 is energized, the electromagnetic component 5 drives the sealing component 6 to the first position, and the sealing component 6 cooperates with the inlet 1 to seal.

[0066] When the electromagnetic component 5 is de-energized, the electromagnetic component 5 drives the sealing component 6 to the second position. When liquid is introduced into the pipeline 4, the liquid enters the chamber 3 through the inlet 1 to seal the sealing component 6 and the outlet 2. When no liquid is introduced into the pipeline 4, the airflow in the outside air passes through the outlet 2 to deform the sealing component 6 so that the inlet 1 and the outlet 2 are connected.

[0067] The present invention provides a sealing element 6 inside the solenoid valve. When liquid flows into the solenoid valve, the sealing element 6 blocks the outlet 2, which can prevent the liquid in the pipeline 4 from flowing into the equipment with the solenoid valve installed. The sealing element 6 also isolates the elastic element 15 from the liquid, the moving iron core 14 and the elastic element 15, thereby preventing scale from forming on the surface of the moving iron core 14 and the elastic element 15. Therefore, it will not affect the movement of the moving iron core 14 and improve the service life of the solenoid valve.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A solenoid valve, comprising: The system includes an inlet, an outlet, and a chamber, wherein the inlet and the outlet are respectively connected to the chamber, characterized in that the inlet is connected to a pipeline and the outlet is connected to the outside. It also includes: an electromagnetic component and a sealing element, the sealing element being movably disposed within the cavity, the sealing element being operably positioned in a first position and a second position; When the electromagnetic component is energized, the electromagnetic component drives the sealing member to the first position, and the sealing member cooperates with the inlet sealing member; When the electromagnetic component is de-energized, the electromagnetic component drives the sealing member to the second position. When liquid is introduced into the pipeline, the liquid enters the chamber through the inlet to seal the sealing member and the outlet. When no liquid is introduced into the pipeline, the airflow from the outside drives the sealing member to deform through the outlet so that the inlet and the outlet are connected. The sealing element has a flow-through structure. When the liquid is not flowing into the pipeline, the airflow from the outside environment drives the sealing element to deform through the outlet and connects the inlet and the outlet through the flow-through structure. The flow passage structure is a gap between the outer periphery of the sealing member and the inner wall of the chamber. When the airflow in the outside world passes through the outlet and causes the sealing member to deform, the airflow connects with the inlet through the gap.

2. The electromagnetic valve according to claim 1, characterized in that, The flow passage structure has at least one flow passage hole on the sealing member. When the airflow in the outside environment passes through the outlet and drives the sealing member to deform, the airflow is connected to the inlet through the flow passage hole.

3. The electromagnetic valve according to claim 2, characterized in that, The sealing component includes an installation sealing part and a deformable sealing part connected to each other. The deformable sealing part is disposed on the outer periphery of the installation sealing part, and a gap is formed between the outer periphery of the deformable sealing part and the inner periphery of the chamber. The deformable sealing part covers the outlet, and the flow hole is disposed on the deformable sealing part. The outlet is located between the gap and the flow hole.

4. The electromagnetic valve according to claim 3, characterized in that, The deformable sealing part is provided with a plurality of flow holes, which are arranged at equal intervals along the circumferential direction of the deformable sealing part.

5. The electromagnetic valve according to claim 4, characterized in that, The electromagnetic component includes: A skeleton having a first accommodating cavity and a second accommodating cavity that are interconnected, with a step formed between the first accommodating cavity and the second accommodating cavity; A coil, the coil being disposed on the outside of the frame; A stationary iron core is fixedly disposed within the first accommodating cavity, and the inlet penetrates the stationary iron core. A moving iron core is movably disposed within the second accommodating cavity. The outlet is formed between the outer periphery of the moving iron core and the inner periphery of the second accommodating cavity. The first accommodating cavity is located between the stationary iron core and the moving iron core to form the chamber. The sealing member is installed on the moving iron core. An elastic element is provided between the moving iron core and the frame, and the elastic element uses its own elastic force to reset the moving iron core.

6. The electromagnetic valve according to claim 5, characterized in that, When liquid is introduced into the pipeline, the liquid enters the chamber through the inlet, so that the deformable sealing part covers the step. The deformable sealing part is in a planar state, the end of the moving iron core is sealed with the flow hole, and the deformable sealing part is sealed with the outlet. When no liquid is flowing into the pipeline, the airflow from the outside drives the deformable sealing part to deform through the outlet, and the deformable sealing part is at least partially bent so that the inlet is connected to the outlet through the gap and / or the flow hole.

7. The electromagnetic valve according to claim 6, characterized in that, The moving iron core has a first mounting cavity and a second mounting cavity that are interconnected. The mounting and sealing part is installed in the first mounting cavity, and the elastic element is installed in the second mounting cavity. The elastic element is a tension spring. One end of the tension spring is limited to the first mounting cavity. The frame is provided with a pull rod, and the other end of the tension spring is limited to the pull rod. The mounting and sealing part is installed at the opening of the first mounting cavity, and the mounting and sealing part is in a sealing fit with the opening of the first mounting cavity; The pull rod is located at the end of the second accommodating cavity away from the first accommodating cavity, and the other end of the tension spring is hung on the pull rod; The moving iron core is limited by the pull rod.

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