High-frequency inflation electromagnetic valve

Abstract

The utility model discloses a high-frequency inflation solenoid valve, which relates to the technical field of solenoid valves and comprises a valve body, an air outlet and an air inlet are arranged at the lower end of the valve body, a valve cover piece is mounted on the valve body, a movable iron core component is mounted in the valve cover piece in a sliding manner, and the movable iron core component is arranged in the valve cover piece. The movable iron core assembly is connected with the valve cover piece through a movable iron core reset spring, a static iron core is installed in the valve cover piece, the valve cover piece is sleeved with a shell, a coil is installed in the shell, in the normal state, the movable iron core prevents gas from passing through, and after the coil is powered on, due to the magnetic effect of current, the static iron core is not damaged. When a power source is switched off, the movable iron core assembly moves upwards under the action of Ampere force, the movable iron core reset spring is compressed, airflow can flow out of the valve body smoothly, after the power source is switched off, the movable iron core reset spring pushes the movable iron core downwards, air is prevented from flowing out of the valve body again, and the control flow of the valve can be opened and closed by controlling current. And remote accurate control of the system is realized.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, specifically a high-frequency air-charging electromagnetic valve. Background Technology

[0002] Solenoid valves, as key components of industrial control systems, can monitor and regulate parameters such as flow rate, pressure, and temperature of fluids and gases by connecting to sensors, PLCs, and other devices. Through preset control strategies, automated system operation can be achieved, improving production efficiency and product quality.

[0003] Under current technology, most air-filling solenoid valves have complex structures, slow response speeds, and short service lifespans due to wear on the moving iron core caused by prolonged use. They require a large stockpile for replacement, increasing operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a high-frequency air-filling solenoid valve to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The high-frequency air-filling solenoid valve includes a valve body, with an air outlet and an air inlet at the lower end of the valve body. A valve cover is installed on the valve body, and a moving iron core assembly is slidably installed inside the valve cover near one end of the valve body. The moving iron core assembly is connected to the valve cover via a moving iron core return spring. A stationary iron core is installed inside the valve cover, and an outer shell is fitted over the valve cover. A coil is installed around the valve cover inside the outer shell, and the portion of the coil extending out of the outer shell is an external wire.

[0006] Under normal conditions, the lower end of the moving iron core assembly presses against the air outlet, preventing gas entering the valve body from the inlet from passing through the solenoid valve. When needed, the external wire is connected to the current, and current flows through the coil. Due to the magnetic effect of the current, the moving iron core assembly, located at the center of the coil, is subjected to magnetic force and moves upward. The moving iron core return spring is compressed, removing the obstruction to the air outlet and allowing airflow to flow smoothly out of the valve body. When the power is cut off, the moving iron core return spring, due to its elastic potential energy, exerts a downward thrust on the moving iron core assembly, causing it to return to its original position and preventing gas from flowing out of the valve body. Therefore, by controlling whether the current is connected, the flow of gas through the valve body can be controlled. At the same time, the flow rate can be controlled by controlling the magnitude of the current, enabling remote, precise, and flexible remote control of the system.

[0007] As a preferred technical solution, an O-ring and a valve cover gasket are installed at the connection between the valve body and the valve cover. The O-ring and the valve cover gasket can ensure the sealing of the valve body, prevent gas from overflowing from the connection and affecting the delivery pressure, and avoid insufficient control of the flow rate due to overflowing fluid, which would affect the use of the flowing gas.

[0008] As a preferred technical solution, the moving iron core assembly and the stationary iron core are coaxially installed, and a movable gap is left between the moving iron core assembly and the stationary iron core. The movable gap ensures that the moving iron core assembly can move upward, ensuring gas flow and the normal use of the solenoid valve.

[0009] As a preferred technical solution, a magnetic shielding ring is installed on the side of the stationary iron core near the moving iron core. Since the stationary iron core is also affected by the magnetic force generated by the coil, a magnetic shielding ring is installed at the lower end of the stationary iron core to reduce the tendency of the stationary iron core to move, extend the service life of the solenoid valve, and at the same time prevent the magnetic field generated by the stationary iron core from affecting the movement of the moving iron core assembly, ensuring the normal operation of the valve body when opening and closing.

[0010] As a preferred technical solution, the moving iron core assembly includes a moving iron core, a mounting through hole, a lower push rod, an upper push rod, a lower adjusting column, an upper adjusting column, and a connecting spring;

[0011] A moving iron core is slidably installed inside the valve cover. An installation through hole is provided on the moving iron core. A lower push rod is installed at the lower end of the installation through hole. A lower adjusting column is slidably installed inside the installation through hole near the lower push rod. An upper push rod is slidably installed at the upper end of the installation through hole. An upper adjusting column is slidably installed inside the installation through hole near the upper push rod. The upper adjusting column and the lower adjusting column are connected by a connecting spring.

[0012] Under normal conditions, the lower push rod blocks the air outlet, preventing gas from passing through the solenoid valve. When the coil is energized, the magnetic effect of the current generates a longitudinal Ampere force on the moving iron core, causing it to move upward. This moves the upper push rod synchronously, removing the blockage of the air outlet and allowing gas to flow smoothly through the valve body. Furthermore, the upward movement distance of the moving iron core can be controlled by adjusting the current, thereby controlling the gas flow through the valve body. This enables remote, precise control and flexibility of the system.

[0013] As a preferred technical solution, the moving iron core assembly further includes a vent hole. The outer diameter of the moving iron core assembly is smaller than the inner diameter of the valve cover. This ensures that the moving iron core is not affected by the frictional force generated with the inner wall of the outer shell when it slides up and down, thus ensuring the precise opening of the solenoid valve and flow control. The vent hole allows the air pressure inside the moving iron core to be the same as the air pressure inside the valve body, preventing changes in the air pressure inside the moving iron core from damaging its shape and affecting the normal opening of the solenoid valve and the precise control of the flow.

[0014] As a preferred technical solution, the upper end face of the upper push rod is higher than the upper end face of the moving iron core. When the moving iron core moves upward, the upper push rod will contact the stationary iron core before the moving iron core. The upper push rod is subjected to a squeezing force, which compresses the connecting spring downward through the upper adjusting column, but does not affect the normal opening of the solenoid valve. Due to long-term use, the moving iron core will frequently collide with the stationary iron core, resulting in wear and shortening of the moving iron core, affecting the effect of blocking the air outlet and the accuracy of opening the solenoid valve. The presence of the upper push rod can effectively avoid this situation, extend the service life of the solenoid valve, and ensure accurate opening, closing, and flow control.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Adopting a new type of high-frequency air-filling solenoid valve, which has a simple structure and can respond to control signals faster, enabling remote and precise control and flexibility of the system.

[0017] 2. The vent hole prevents changes in internal air pressure from damaging the shape of the moving iron core, thus affecting the normal opening of the solenoid valve and the precise control of flow.

[0018] 3. The upper push rod design effectively prevents wear on the moving iron core caused by prolonged use, extending the service life of the solenoid valve and ensuring precise opening, closing, and flow control. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the first cross-sectional structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the second cross-sectional structure of the present invention;

[0024] Figure 6 This is a cross-sectional structural diagram of the moving iron core assembly of this utility model.

[0025] In the diagram: 1. Valve body; 2. O-ring seal; 3. Moving iron core return spring; 4. Valve cover gasket; 5. Valve cover assembly; 6. Moving iron core assembly; 7. Housing; 8. Coil; 9. External wire; 10. Air inlet; 11. Air outlet; 12. Stationary iron core; 13. Magnetic shielding ring;

[0026] 6. Moving iron core assembly; 601. Moving iron core; 602. Mounting through hole; 603. Lower push rod; 604. Upper push rod; 605. Lower adjusting column; 606. Upper adjusting column; 607. Connecting spring; 608. Vent hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Figures 1-5 As shown, this utility model provides a high-frequency air-filling solenoid valve technical solution, characterized in that: the high-frequency air-filling solenoid valve includes a valve body 1, the lower end of the valve body 1 is provided with an air outlet 11 and an air inlet 10, a valve cover 5 is installed on the valve body 1, a moving iron core assembly 6 is slidably installed in the valve cover 5 near one end of the valve body 1, the moving iron core assembly 6 is connected to the valve cover 5 through a moving iron core return spring 3, a stationary iron core 12 is installed in the valve cover 5, an outer shell 7 is fitted over the valve cover 5, a coil 8 is installed around the valve cover 5 inside the outer shell 7, and the part of the coil 8 extending out of the outer shell 7 is an external wire 9.

[0029] Under normal conditions, the lower end of the moving iron core assembly 6 will press against the air outlet 11, preventing gas entering the valve body 1 from the air inlet 10 from passing through the solenoid valve. When needed, the external wire 9 is connected to the current, and current flows through the coil 8. Due to the magnetic effect of the current, the moving iron core assembly 6, located at the center of the coil 8, is subjected to magnetic force and moves upward. The moving iron core return spring 3 is compressed, removing the obstruction to the air outlet 11, allowing the airflow to flow smoothly out of the valve body 1. When the power is cut off, the moving iron core return spring 3, due to its elastic potential energy, exerts a downward thrust on the moving iron core assembly 6, causing the moving iron core assembly 6 to reset and preventing gas from flowing out of the valve body 1. Therefore, by controlling whether the current is connected or not, it is possible to control whether gas can flow through the valve body 1. At the same time, the flow rate can be controlled by controlling the magnitude of the current, enabling remote, precise, and flexible remote control of the system.

[0030] The connection between the valve body 1 and the valve cover 5 is equipped with an O-ring 2 and a valve cover gasket 4. The O-ring 2 and the valve cover gasket 4 can ensure the sealing of the valve body 1, prevent gas from overflowing from the connection and affecting the delivery pressure, and avoid insufficient control of the flow rate due to overflowing fluid, which would affect the use of the flowing gas.

[0031] The moving iron core assembly 6 and the stationary iron core 12 are coaxially mounted, and there is a movable gap between the moving iron core assembly 6 and the stationary iron core 12. The movable gap ensures that the moving iron core assembly 6 can move upward, ensuring gas flow and the normal operation of the solenoid valve.

[0032] A magnetic shielding ring 13 is installed on the side of the stationary iron core 12 near the moving iron core 601. Since the stationary iron core 12 is also affected by the magnetic force generated by the coil 8, a magnetic shielding ring 13 is installed at the lower end of the stationary iron core 12 to reduce the tendency of the stationary iron core 12 to move, extend the service life of the solenoid valve, and at the same time prevent the magnetic field generated by the stationary iron core 12 from affecting the movement of the moving iron core assembly 6, so as to ensure the normal operation of the valve body 1 when opening and closing.

[0033] like Figures 4-6 As shown, the moving iron core assembly 6 includes a moving iron core 601, a mounting through hole 602, a lower push rod 603, an upper push rod 604, a lower adjusting column 605, an upper adjusting column 606, and a connecting spring 607;

[0034] A moving iron core 601 is slidably installed inside the valve cover 5. The moving iron core 601 has a mounting through hole 602. A lower push rod 603 is installed at the lower end of the mounting through hole 602. A lower adjusting column 605 is slidably installed inside the mounting through hole 602 near the lower push rod 603. An upper push rod 604 is slidably installed at the upper end of the mounting through hole 602. An upper adjusting column 606 is slidably installed inside the mounting through hole 602 near the upper push rod 604. The upper adjusting column 606 and the lower adjusting column 605 are connected by a connecting spring 607.

[0035] Under normal conditions, the lower push rod 603 blocks the air outlet 11, preventing gas from passing through the solenoid valve. When the coil 8 is energized, the magnetic effect of the current generates a longitudinal Ampere force on the moving iron core 601, causing it to move upward. This moves the upper push rod 604 synchronously, removing the blockage of the air outlet 11 and allowing gas to flow smoothly through the valve body 1. Simultaneously, the upward movement distance of the moving iron core 601 can be controlled by adjusting the current, thereby controlling the gas flow rate through the valve body 1. This achieves remote, precise control and flexibility of the system.

[0036] The moving iron core assembly 6 also includes a vent 608. The outer diameter of the moving iron core assembly 6 is smaller than the inner diameter of the valve cover 5. This ensures that the moving iron core 601 is not affected by the frictional force generated with the inner wall of the outer casing 7 when it slides up and down, thus ensuring the precise opening of the solenoid valve and flow control. The vent 8 can make the air pressure inside the moving iron core 601 the same as the air pressure inside the valve body 1, preventing changes in the air pressure inside the moving iron core 601 from damaging its shape and affecting the normal opening of the solenoid valve and the precise control of the flow.

[0037] The upper end face of the upper push rod 604 is higher than the upper end face of the moving iron core 601. When the moving iron core 601 moves upward, the upper push rod 604 will contact the stationary iron core 12 before the moving iron core 601. The upper push rod 604 is subjected to a squeezing force, which compresses the connecting spring 607 downward through the upper adjusting column 606. However, this does not affect the normal opening of the solenoid valve. Due to prolonged use, the moving iron core 601 will frequently collide with the stationary iron core 12, resulting in wear and shortening of the moving iron core 601. This will affect the effect of blocking the air outlet 11 and the accuracy of opening the solenoid valve. The presence of the upper push rod 604 can effectively avoid this situation, extend the service life of the solenoid valve, and ensure accurate opening, closing, and flow control.

[0038] Meanwhile, when the valve is energized and opened, the moving iron core 601 moves upward and engages with the stationary iron core 12. During this process, the combined action of the upper adjusting column 606 and the connecting spring 607 inside the moving iron core can reduce and eliminate the noise generated by the engagement.

[0039] The working principle of this utility model is as follows: Under normal conditions, the lower end of the moving iron core assembly 6 will press against the air outlet 11, preventing the gas entering the valve body 1 from the air inlet 10 from passing through the solenoid valve. When needed, the external wire 9 is connected to the current, and current flows through the coil 8. Due to the magnetic effect of the current, the moving iron core assembly 6, located at the center of the coil 8, is subjected to magnetic force and moves upward. The moving iron core return spring 3 is compressed, removing the obstruction to the air outlet 11, allowing the airflow to flow smoothly out of the valve body 1. When the power is cut off, the moving iron core return spring 3, due to its elastic potential energy, generates a downward pushing force on the moving iron core assembly 6, causing the moving iron core assembly 6 to reset and preventing the gas from flowing out of the valve body 1. Therefore, by controlling whether the current is connected or not, it is possible to control whether the gas can flow through the valve body 1. At the same time, the flow rate can be controlled by controlling the magnitude of the current, enabling remote precise control and flexibility of the system.

[0040] The O-ring 2 and the valve cover gasket 4 ensure the sealing of the valve body 1, prevent gas from overflowing from the connection and affecting the delivery pressure, and avoid insufficient flow control due to overflowing fluid, which would affect the use of the flowing gas.

[0041] A clearance is provided between the moving iron core assembly 6 and the stationary iron core 12. This clearance allows the moving iron core assembly 6 to move upward, ensuring gas flow and the normal operation of the solenoid valve.

[0042] Under normal conditions, the lower push rod 603 blocks the air outlet 11, preventing gas from passing through the solenoid valve. When the coil 8 is energized, the magnetic effect of the current generates a longitudinal Ampere force on the moving iron core 601, causing it to move upward. This moves the upper push rod 604 synchronously, removing the blockage of the air outlet 11 and allowing gas to flow smoothly through the valve body 1. Simultaneously, the upward movement distance of the moving iron core 601 can be controlled by adjusting the current, thereby controlling the gas flow rate through the valve body 1. This achieves remote, precise control and flexibility of the system.

[0043] The outer diameter of the moving iron core assembly 6 is smaller than the inner diameter of the valve cover 5 to ensure that the moving iron core 601 is not affected by the frictional force generated with the inner wall of the outer casing 7 when it slides up and down, thus ensuring the precise opening of the solenoid valve and flow control. The vent hole 8 can make the air pressure inside the moving iron core 601 the same as the air pressure inside the valve body 1, preventing the shape of the moving iron core 601 from being damaged due to changes in the air pressure inside the moving iron core 601, which would affect the normal opening of the solenoid valve and the precise control of the flow.

[0044] When the moving iron core 601 moves upward, the upper push rod 604 will contact the stationary iron core 12 before the moving iron core 601. The upper push rod 604 is subjected to a squeezing force, which compresses the connecting spring 607 downward through the upper adjusting column 606. However, this does not affect the normal opening of the solenoid valve. Due to prolonged use, the moving iron core 601 will frequently collide with the stationary iron core 12, resulting in wear and shortening of the moving iron core 601. This will affect the effect of blocking the air outlet 11 and the accuracy of opening the solenoid valve. The presence of the upper push rod 604 can effectively avoid this situation, extend the service life of the solenoid valve, and ensure accurate opening, closing, and flow control.

[0045] Meanwhile, when the valve is energized and opened, the moving iron core 601 moves upward and engages with the stationary iron core 12. During this process, the combined action of the upper adjusting column 606 and the connecting spring 607 inside the moving iron core can reduce and eliminate the noise generated by the engagement.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-frequency air-charging solenoid valve, characterized in that: The high-frequency air-filling solenoid valve includes a valve body (1), with an air outlet (11) and an air inlet (10) at the lower end of the valve body (1). A valve cover (5) is installed on the valve body (1). A moving iron core assembly (6) is slidably installed inside the valve cover (5) near one end of the valve body (1). The moving iron core assembly (6) is connected to the valve cover (5) through a moving iron core return spring (3). A stationary iron core (12) is installed inside the valve cover (5). A shell (7) is installed around the valve cover (5). A coil (8) is installed around the valve cover (5) inside the shell (7). The part of the coil (8) that extends out of the shell (7) is an external wire (9).

2. The high-frequency air-charging solenoid valve according to claim 1, characterized in that: An O-ring (2) and a valve cover gasket (4) are installed at the connection between the valve body (1) and the valve cover (5).

3. A high-frequency air-charging solenoid valve according to claim 2, characterized in that: The moving iron core assembly (6) and the stationary iron core (12) are coaxially mounted, and there is a gap between the moving iron core assembly (6) and the stationary iron core (12).

4. A high-frequency air-charging solenoid valve according to claim 3, characterized in that: A magnetic shielding ring (13) is installed on the side of the stationary iron core (12) near the moving iron core (601).

5. A high-frequency air-charging solenoid valve according to claim 4, characterized in that: The moving iron core assembly (6) includes a moving iron core (601), a mounting through hole (602), a lower push rod (603), an upper push rod (604), a lower adjusting column (605), an upper adjusting column (606), and a connecting spring (607). A movable iron core (601) is slidably installed inside the valve cover (5). An installation through hole (602) is provided on the movable iron core (601). A lower push rod (603) is installed at the lower end of the installation through hole (602). A lower adjusting column (605) is slidably installed inside the installation through hole (602) near the lower push rod (603). An upper push rod (604) is slidably installed at the upper end of the installation through hole (602). An upper adjusting column (606) is slidably installed inside the installation through hole (602) near the upper push rod (604). The upper adjusting column (606) and the lower adjusting column (605) are connected by a connecting spring (607).

6. A high-frequency air-charging solenoid valve according to claim 5, characterized in that: The moving iron core assembly (6) also includes a vent hole (608), and the outer diameter of the moving iron core assembly (6) is smaller than the inner diameter of the valve cover (5).

7. A high-frequency air-charging solenoid valve according to claim 6, characterized in that: The upper end face of the upper push rod (604) is higher than the upper end face of the moving iron core (601).

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