Floating plug type electromagnetic valve
By setting leakage holes and needle shapes in the floating plug solenoid valve, the problems of large size, high noise and high energy consumption of the existing solenoid valve are solved, the miniaturization, low noise and low energy consumption of the solenoid valve are achieved, and its practicality and stability in the refrigeration system are enhanced.
Patent Information
- Application Number
- CN202422951238.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The solenoid valves used in existing small and medium-sized refrigeration units have problems such as large size, high noise, high energy consumption, and a small range of usable working fluids, resulting in poor practicality.
A floating plug solenoid valve was designed. A leakage hole was set in the middle of the valve core to reduce the resistance of the moving iron. A needle-shaped valve was used to overcome the movement resistance when closing the valve. The structure was simplified to reduce parts, reduce costs, and improve labor production efficiency.
The solenoid valve has a reduced volume, lower noise, and lower energy consumption, and its applicable working fluid range is expanded, and its practicality and stability are improved.
Smart Images
Figure CN223447660U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electromagnetic valve accessory, particularly to a float plug type electromagnetic valve. BACKGROUND
[0002] It is known that with the development of industrial automation and intelligence, electromagnetic valves, as key components in fluid control systems, have been widely used in many industries, such as chemical industry, petroleum, natural gas, water treatment, food processing, etc. Electromagnetic valves control the on-off of fluid through electrical signals, with the advantages of fast response speed and easy operation. The float plug type electromagnetic valve is a special type of electromagnetic valve, which is usually used to control the direction, flow or pressure of liquid flow, and has a wide application in industrial automation systems. Inside the valve, there is a floating piston (or called float plug), which will be in a balanced position without external force. When the electromagnet is powered on, it will generate a magnetic force to attract the float plug to move, thereby changing the state of the fluid passage and realizing the function of opening or closing the valve
[0003] The existing electromagnetic valve used on small-sized refrigeration units has the problems of large size, loud noise, high energy consumption, and small working medium range, thereby increasing the cost and resulting in poor practicality. CONTENT OF THE UTILITY MODEL
[0004] To solve the above technical problems, the utility model provides a float plug type electromagnetic valve with a leakage hole in the middle of the valve core when the valve is opened, which reduces the moving iron operating resistance; when the valve is closed, the needle shape overcomes the valve core movement resistance; reduces the opening and closing valve risk; simplifies the structure, reduces the parts and the cost of parts, improves the labor productivity, and therefore enhances the practicality.
[0005] The utility model discloses a float plug type electromagnetic valve, including the valve body, still including the coil, the pilot valve core baffle, the filter screen, the pilot valve port valve core subassembly and the main valve port valve core float plug, the valve body left end is provided with the filter screen, the valve body working cavity top is provided with the through -hole, and the valve body working cavity top is provided with the main valve port valve core float plug, the pilot valve port valve core subassembly outside bottom and valve body working cavity through -hole connection, and the pilot valve port valve core subassembly bottom and main valve port valve core float plug top connection, the pilot valve core baffle bottom and pilot valve port valve core subassembly top connection, and the pilot valve core baffle with pilot valve port valve core subassembly outside connection.
[0006] Preferably, the pilot valve port valve core subassembly includes a pilot valve core moving iron, a pilot valve core needle and a pilot valve core return spring, the pilot valve core moving iron is connected to the through-hole of the valve body working cavity at the bottom of its outer side, and the pilot valve core moving iron is provided with a through-hole, the pilot valve core needle and the through-hole of the pilot valve core moving iron are sleeved, and the pilot valve core return spring and the through-hole of the pilot valve core moving iron are sleeved at the top, the bottom of the pilot valve core return spring is connected to the pilot valve core needle, and the top of the pilot valve core return spring is connected to the bottom of the pilot valve core baffle.
[0007] Preferably, the main valve port valve core float plug comprises a float stainless steel reinforced shell, a float Teflon pad and a pilot auxiliary small valve port, the valve body working cavity top is provided with the float stainless steel reinforced shell, the inside of the float stainless steel reinforced shell is provided with the float Teflon pad, and the top of the float Teflon pad is provided with the pilot auxiliary small valve port.
[0008] Compared with the prior art, the float type electromagnetic valve has the beneficial effects that: when opening the valve, the electromagnetic coil is powered, the moving iron and the blocking iron are attracted under the action of the magnetic field, overcome the force of the pilot valve core reset compression spring and the end force of the medium on the moving iron, drive the pilot valve core needle to move away from the float auxiliary small valve port, the medium flows into the lower end of the float to backflush the float, the float moves away from the main valve port, and the valve is opened; when closing the valve, the electromagnetic coil is powered off, the pilot valve core needle moves to the pilot auxiliary small valve port under the action of the reset force of the valve core reset compression spring, drives the moving iron to move in the same direction, closes the auxiliary small valve port, reduces the medium flow at the lower end of the float, forms the pressure difference moving to the main valve port, and forms the closing force under the reset pressure of the moving iron, and the valve is closed. BRIEF DESCRIPTION OF DRAWINGS
[0009] Fig. 1 is the front view structure section schematic view of the utility model;
[0010] Fig. 2 is the pilot valve port valve core assembly structure enlarged schematic view of the utility model;
[0011] Fig. 3 is the main valve port valve core float plug structure enlarged schematic view of the utility model;
[0012] Markings in the drawings: 1, valve body; 2, coil; 3, pilot valve core blocking iron; 4, filter screen; 5, pilot valve port valve core assembly; 6, main valve port valve core float plug; 501, pilot valve core moving iron; 502, pilot valve core needle; 503, pilot valve core reset compression spring; 601, float stainless steel reinforced shell; 602, float Teflon pad; 603, pilot auxiliary small valve port. DETAILED DESCRIPTION
[0013] The specific implementation of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
[0014] As Figs. 1 to 3As shown in the utility model, the float type electromagnetic valve comprises a valve body 1, a coil 2, a pilot valve core stopper 3, a filter screen 4, a pilot valve port valve core assembly 5 and a main valve port valve core float 6, the filter screen 4 is arranged at the left end of the valve body 1, a through hole is arranged at the top of the working cavity of the valve body 1, the main valve port valve core float 6 is arranged at the top of the working cavity of the valve body 1, the outer bottom of the pilot valve port valve core assembly 5 is connected with the through hole of the working cavity of the valve body 1, the bottom of the pilot valve port valve core assembly 5 is connected with the top of the main valve port valve core float 6, the bottom of the pilot valve core stopper 3 is connected with the top of the pilot valve port valve core assembly 5, and the pilot valve core stopper 3 is connected with the outer side of the pilot valve port valve core assembly 5.
[0015] As a preferred embodiment of the above, the pilot valve port valve core assembly 5 comprises a pilot valve core moving iron, a pilot valve core needle 502 and a pilot valve core reset compression spring 503, the outer bottom of the pilot valve core moving iron is connected with the through hole of the working cavity of the valve body 1, the pilot valve core moving iron is provided with a through hole, the pilot valve core needle 502 is sleeved with the through hole of the pilot valve core moving iron, and the pilot valve core reset compression spring 503 is sleeved with the top of the through hole of the pilot valve core moving iron, the bottom of the pilot valve core reset compression spring 503 is connected with the pilot valve core needle 502, and the top of the pilot valve core reset compression spring 503 is connected with the bottom of the pilot valve core stopper 3; the stability and reliability of the electromagnetic valve in long-time operation are ensured, and therefore the practicability is enhanced.
[0016] As a preferred embodiment of the above, the main valve port valve core float 6 comprises a float stainless steel reinforced shell 601, a float Teflon pad 602 and a pilot auxiliary small valve port 603, the valve body 1 is provided with the float stainless steel reinforced shell 601 at the top of the working cavity, the float stainless steel reinforced shell 601 is provided with the float Teflon pad 602 at the inner side, and the float Teflon pad 602 is provided with the pilot auxiliary small valve port 603 at the top; the combination of the float stainless steel reinforced shell and the float Teflon pad enhances the overall strength and corrosion resistance of the float, improves the durability of the float in harsh environments, and therefore the practicability is enhanced.
[0017] In the working process of the utility model, when the valve is opened, the electromagnetic coil is electrified, the moving iron and the stopper are attracted under the action of the magnetic field, the force of the pilot valve core reset compression spring and the force of the medium acting on the upper end of the moving iron are overcome, the pilot valve core needle is driven to move away from the float auxiliary small valve port, the medium flows into the lower end of the float to rebound the float, the float moves away from the main valve port, and the valve is opened.
[0018] Close valve: the electromagnetic coil loses power, the pilot valve core needle moves to the pilot auxiliary small valve port under the action of the valve core reset pressure spring relaxation reset force, drives the moving iron to move in the same direction, makes the auxiliary small valve port close, leads to the medium flow of the lower end of the float to reduce, forms the pressure difference moving to the main valve port direction, at the same time under the reset pressure of the moving iron, forms the closing force, the valve is closed, before completing the above action, first move to the position required by the user.
[0019] The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.
[0020] The "first", "second", "third" in the utility model do not represent the specific quantity and order, and are only used for distinguishing the names.
[0021] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can also make a number of improvements and variations, these improvements and variations should also be regarded as the protection scope of the utility model.
Claims
1. A floating plug type solenoid valve, comprising a valve body (1), characterized in that: The invention also includes a coil (2), a pilot valve core stop iron (3), a filter (4), a pilot valve port valve core assembly (5) and a main valve port valve core float plug (6); the filter (4) is provided at the left end of the valve body (1); a through hole is provided at the top of the working chamber of the valve body (1); and a main valve port valve core float plug (6) is provided at the top of the working chamber of the valve body (1); the outer bottom of the pilot valve port valve core assembly (5) is connected to the through hole of the working chamber of the valve body (1); the bottom of the pilot valve port valve core assembly (5) is connected to the top of the main valve port valve core float plug (6); the bottom of the pilot valve core stop iron (3) is connected to the top of the pilot valve port valve core assembly (5); and the pilot valve core stop iron (3) is connected to the outer side of the pilot valve port valve core assembly (5).
2. A floating plug type solenoid valve according to claim 1, characterized in that: The pilot valve port valve core assembly (5) includes a pilot valve core movable iron, a pilot valve core needle (502) and a pilot valve core reset compression spring (503). The outer bottom of the pilot valve core movable iron is connected to the working chamber through-hole of the valve body (1), and the pilot valve core movable iron is provided with a through-hole. The pilot valve core needle (502) and the pilot valve core movable iron through-hole are fitted together, and the pilot valve core reset compression spring (503) and the top of the pilot valve core movable iron through-hole are fitted together. The bottom of the pilot valve core reset compression spring (503) is connected to the pilot valve core needle (502), and the top of the pilot valve core reset compression spring (503) is connected to the bottom of the pilot valve core stop iron (3).
3. A floating plug type solenoid valve according to claim 2, characterized in that: The main valve port valve core float plug (6) comprises a float plug stainless steel reinforced shell (601), a float plug PTFE pad (602) and a pilot auxiliary small valve port (603). The top of the working chamber of the valve body (1) is provided with a float plug stainless steel reinforced shell (601), a float plug PTFE pad (602) is provided inside the float plug stainless steel reinforced shell (601), and a pilot auxiliary small valve port (603) is provided on the top of the float plug PTFE pad (602).