Double-flow electromagnetic valve

Abstract

The double-flow electromagnetic valve comprises a frame body, a first valve body and a second valve body, the first valve body and the second valve body are symmetrically arranged at the two ends of the frame body, a coil, a first iron core, a second iron core, a first spring and a second spring are arranged in the frame body, the first iron core is elastically connected with the first valve body through the first spring, and the second iron core is elastically connected with the second valve body through the second spring. Through the implementation of the double-flow-channel electromagnetic valve, the first iron core and the second iron core which are symmetrically arranged are driven by a single coil, synchronous control over double flow channels is achieved, meanwhile, the magnetic circuit design and the overall structure are simplified, power consumption is relatively low, control logic is simpler, and the double-flow-channel electromagnetic valve is suitable for large-scale popularization and application. And the device has certain use value and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and in particular to a dual-flow solenoid valve. Background Technology

[0002] Traditional solenoid valves typically employ a single valve body structure, using a single coil to drive a single iron core to control a single flow channel. For scenarios requiring independent control of dual flow channels (such as dual-waterway systems), two solenoid valves are usually connected in parallel, resulting in a complex structure, large size, and high cost. Furthermore, existing dual-valve-body designs require two sets of independent coils, leading to high power consumption and relatively complex control logic.

[0003] In summary, a dual-flow solenoid valve is needed to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dual-flow solenoid valve, aiming to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-flow solenoid valve, comprising a frame and a first valve body and a second valve body symmetrically disposed at both ends of the frame. A coil, a first iron core, a second iron core, a first spring, and a second spring are disposed within the frame. The first iron core is elastically connected to the first valve body via the first spring, and the second iron core is elastically connected to the second valve body via the second spring. By driving the symmetrically arranged first and second iron cores with a single coil, synchronous control of the dual flow channels is achieved. This also simplifies the magnetic circuit design and overall structure, resulting in relatively low power consumption, simpler control logic, and stronger practicality.

[0006] Furthermore, both the first valve body and the second valve body are provided with a water inlet, a pressure reducing ring, a pressure-increasing needle hole, and a pressure-relieving hole. The first valve body and the second valve body are also provided with a control chamber. The water inlet and the pressure reducing ring are connected. The pressure-increasing needle hole and the pressure-relieving hole are located on the side close to the control chamber. The pressure-increasing needle hole is used to connect the water inlet and the sealing area inside the valve body. The pressure-relieving hole is used to connect the control chamber to balance the internal and external pressures.

[0007] Furthermore, a filter screen is provided inside the water inlet, which is used to prevent impurities from entering the first valve body and the second valve body.

[0008] Furthermore, the moving ends of both the first iron core and the second iron core are connected to rubber plugs, which are used to adapt and seal the first valve body and the second valve body.

[0009] Furthermore, the first iron core and the second iron core are respectively located at both axial ends inside the coil.

[0010] Furthermore, the first valve body and the second valve body are provided with rubber molds for fitting rubber plugs.

[0011] Furthermore, the frame is provided with an annular coil groove, and the coil is wound in the coil groove to form a closed magnetic circuit with the first iron core and the second iron core.

[0012] The beneficial effects of this utility model are as follows: by setting a single coil to drive the symmetrically arranged first and second iron cores, synchronous control of the dual flow channels is achieved. At the same time, the magnetic circuit design and overall structure are simplified, the number of parts is reduced, the manufacturing cost is lowered, the power consumption is relatively low, the synchronous opening and closing of the dual flow channels is achieved, the control efficiency is improved, the practicality is relatively strong, and it has certain application value and promotion value. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 10-frame, 101-coil slot, 11-coil, 12-first iron core, 13-second iron core, 14-first spring, 15-second spring, 16-rubber plug; 20a-first valve body, 20b-second valve body, 21-water inlet, 22-pressure reducing ring, 23-pressure needle hole, 24-pressure relief hole, 25-control chamber, 26-rubber mold. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1 As shown, a dual-flow solenoid valve includes a frame 10 and a first valve body 20a and a second valve body 20b symmetrically disposed at both ends of the frame 10. A coil 11, a first iron core 12, a second iron core 13, a first spring 14, and a second spring 15 are disposed inside the frame 10. The first iron core 12 is elastically connected to the first valve body 20a through the first spring 14, and the second iron core 13 is elastically connected to the second valve body 20b through the second spring 15.

[0019] In one embodiment, both the first valve body 20a and the second valve body 20b are provided with an inlet 21, a pressure reducing ring 22, a pressure-increasing pinhole 23, and a pressure-reducing hole 24. A control chamber 25 is also provided in the first valve body 20a and the second valve body 20b. The inlet 21 and the pressure reducing ring 22 are connected. The pressure-increasing pinhole 23 and the pressure-reducing hole 24 are located on the side close to the control chamber 25. The pressure-increasing pinhole 23 is used to connect the inlet 21 and the sealing area inside the valve body. When the first valve body 20a and the second valve body 20b are closed, a local high pressure is formed. The pressure-reducing hole 24 is a radial through hole used to connect the control chamber 25 to balance the internal and external pressures.

[0020] In one implementation, the first valve body 20a and the second valve body 20b are arranged in a mirror image with the central axis of the frame 10 as the plane of symmetry. The axes of the inlet 21 coincide, and the size and position of the pressure reducing ring 22, the pressure needle hole 23 and the pressure inlet hole 24 are completely consistent, ensuring the balanced hydraulic characteristics of the dual flow channels.

[0021] In one implementation, the pressure-reducing ring 22 is an annular groove, used to increase the cross-sectional area of ​​the flow channel to reduce the impact of water flow.

[0022] In one embodiment, a filter screen 211 is provided inside the water inlet 21. The filter screen 211 is used to block impurities from entering the first valve body 20a and the second valve body 20b.

[0023] In one embodiment, the filter screen 211 is a sintered stainless steel filter sheet, which is fixed at the front end of the inlet 21 of the first valve body 20a and the second valve body 20b, respectively, and the filtration accuracy is 50-100μm.

[0024] As one implementation, the inner diameter of the inlet 21 is provided with a flared opening for easy disassembly and assembly of the filter screen 211. The diameter of the end of the flared opening closest to the innermost side of the first valve body 20a and the second valve body 20b is the same as the outer diameter of the filter screen 211. Thus, the filter screen 211 is inserted into the farthest end of the inlet 21 through the end with the larger diameter of the flared opening for simple physical restraint. The structure is simple and practical.

[0025] In one embodiment, the moving ends of the first iron core 12 and the second iron core 13 are both connected to rubber plugs 16, which are used to adapt and seal the first valve body 20a and the second valve body 20b.

[0026] In one embodiment, the first iron core 12 and the second iron core 13 are respectively disposed at both axial ends inside the coil 11.

[0027] In one embodiment, the first valve body 20a and the second valve body 20b are provided with a rubber mold 26 for fitting the rubber plug 16.

[0028] In one embodiment, the rubber plug 16 forms a conical sealing fit with the first valve body 20a and the second valve body 20b, and the outer diameter of the rubber mold 26 is larger than the contact surface of the rubber plug 16, forming a redundant sealing cross section.

[0029] In one embodiment, the frame 10 has an annular coil groove 101 inside, and the coil 11 is wound in the coil groove 101 to form a closed magnetic circuit with the first iron core 12 and the second iron core 13.

[0030] The working principle of this utility model is as follows: When the coil is energized, the magnetic field forms a circuit along the magnetic material of the frame 10. The first iron core 12 and the second iron core 13 are pulled by the opposite magnetic force and move towards the middle of the frame respectively, causing the rubber plug 16 to disengage from the first valve body 20a and the second valve body 20b, and the two flow channels open synchronously. When the power is cut off, the first spring 14 and the second spring 15 push the first iron core 12 and the second iron core 13 to reset, and the rubber plug 16 presses the rubber mold 26, blocking the water flow through the double seal of the conical surface and the plane.

[0031] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A dual-flow solenoid valve, characterized in that, The device includes a frame (10) and a first valve body (20a) and a second valve body (20b) symmetrically disposed at both ends of the frame (10). The frame (10) contains a coil (11), a first iron core (12), a second iron core (13), a first spring (14), and a second spring (15). The first iron core (12) is elastically connected to the first valve body (20a) through the first spring (14), and the second iron core (13) is elastically connected to the second valve body (20b) through the second spring (15).

2. The dual-flow solenoid valve according to claim 1, characterized in that, The first valve body (20a) and the second valve body (20b) are each provided with an inlet (21), a pressure reducing ring (22), a pressure-increasing pinhole (23) and a pressure-reducing hole (24). The first valve body (20a) and the second valve body (20b) are also provided with a control chamber (25). The inlet (21) and the pressure reducing ring (22) are connected. The pressure-increasing pinhole (23) and the pressure-reducing hole (24) are located on the side close to the control chamber (25). The pressure-increasing pinhole (23) is used to connect the inlet (21) and the sealing area inside the valve body. The pressure-reducing hole (24) is used to connect the control chamber (25) to balance the internal and external pressures.

3. The dual-flow solenoid valve according to claim 2, characterized in that, The inlet (21) is equipped with a filter screen (211), which is used to block impurities from entering the first valve body (20a) and the second valve body (20b).

4. The dual-flow solenoid valve according to claim 3, characterized in that, The moving ends of the first iron core (12) and the second iron core (13) are both connected to rubber plugs (16), which are used to adapt and seal the first valve body (20a) and the second valve body (20b).

5. The dual-flow solenoid valve according to claim 4, characterized in that, The first iron core (12) and the second iron core (13) are respectively located at the two axial ends inside the coil (11).

6. The dual-flow solenoid valve according to claim 5, characterized in that, The first valve body (20a) and the second valve body (20b) are provided with rubber molds (26) for fitting the rubber plug (16).

7. The dual-flow solenoid valve according to claim 6, characterized in that, The frame (10) has an annular coil groove (101) inside, and the coil (11) is wound in the coil groove (101) and forms a closed magnetic circuit with the first iron core (12) and the second iron core (13).

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