Electric air valve

Abstract

The utility model relates to the technical field of air valves, in particular to an electric air valve, which comprises a valve seat, a valve core, a valve cover, a speed reducing motor, a first sponge, a second sponge and a control system, the valve core is arranged on the valve seat, a fan-shaped air hole is arranged on the valve core, the speed reducing motor is arranged on the valve core, and the first sponge is arranged on the valve cover. The valve cover is rotationally connected to the valve element, the valve cover is connected with an output shaft of the gear motor, the first sponge is arranged on the valve cover, and the second sponge is arranged on the valve element; the control system comprises a controller and a master control switch, and the controller is in electric signal connection with the master control switch. The portable air valve is convenient to carry, can be movably used and can be applied to various scenes while the air inlet amount and the air outlet amount of the air valve can be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas valve especially is related to a kind of electric gas valve. BACKGROUND

[0002] Gas valve is a kind of element to control gas flow, with the effect of regulating air pressure, preventing gas backflow.

[0003] The Chinese utility model patent application with the publication number CN218761672U and the publication date of March 28, 2023 discloses a new movable cooking bench, which comprises a valve seat provided with an exhaust cavity and an air inlet communicated with the exhaust cavity; a valve core movably arranged in the valve seat; a soft rubber sealing element arranged between the valve seat and the valve core and capable of abutting against the valve core; a cover arranged on the valve seat and having an exhaust port communicated with the exhaust cavity, capable of descending relative to the valve seat to isolate the air inlet from the exhaust port, or rising relative to the valve seat to communicate the air inlet and the exhaust port; and a linkage mechanism arranged between the cover and the valve core and capable of driving the valve core to move away from the soft rubber sealing element when the cover rises relative to the valve seat.

[0004] When exhaust is needed, the cover is first driven to rise relative to the valve seat to reserve a height gap for the upward movement of the valve core. During the rising of the cover, the linkage mechanism can drive the valve core to move away from the soft rubber sealing element, thereby preventing the adhesion of the valve core to the soft rubber sealing element. The airflow at the air inlet can easily lift the valve core, so as to ensure smooth exhaust of the gas valve and improve the use experience.

[0005] For the above technical solution, the valve of the gas valve can only be completely opened and closed, and the control of the air intake and air outlet amount cannot be realized. CONTENT OF THE UTILITY MODEL

[0006] In order to realize the control of the air intake and air outlet amount of the gas valve, the utility model provides an electric gas valve.

[0007] The utility model provides an electric gas valve, adopts the following technical scheme:

[0008] An electric gas valve comprises a valve seat, a valve core, a valve cover, a speed reducer, a first sponge, a second sponge and a control system.

[0009] The valve core is arranged on the valve seat, the valve core is provided with a fan-shaped air hole, the speed reducer is arranged on the valve core, the valve cover is rotatably connected to the valve core, and the valve cover is connected to the output shaft of the speed reducer,

[0010] The first sponge is arranged on the valve cover, and the second sponge is arranged on the valve core.

[0011] The control system comprises a controller and a master switch, and the controller is electrically connected with the master switch.

[0012] By adopting the technical scheme, the valve cover can cover the air hole, when the opening of the air valve needs to be controlled, the controller controls the master switch to open, and then the reduction motor rotates, the reduction motor drives the valve cover to rotate, the valve cover gradually covers the air hole to reduce the opening, or the valve cover gradually moves away from the air hole to increase the opening, the control of the air valve, the control of the rotation angle, the increase or decrease of the air intake and air exhaust, and the proportional increase or decrease of the angle are realized, and accurate control is realized.

[0013] Meanwhile, the use of the reduction motor has low heat output characteristics, so that the air valve will not overheat and is suitable for long-term use.

[0014] Optionally, the valve core is provided with a first stop block and a second stop block, and the control system further comprises a current sensor, and the current sensor is electrically connected with the controller.

[0015] By adopting the technical scheme, the second stop block on the valve core can block the valve cover when the valve cover can completely expose the air hole, and then the overcurrent protection of the reduction motor is used, the current sensor is used to detect the current of the reduction motor, and when the rotation reaches the position of the second stop block, the reduction motor will stop due to the increase of the current and the inability to further rotate,

[0016] The first stop block can limit the initial position of the valve cover, so that the valve cover can cover the air hole when the valve cover is restored to the position.

[0017] Optionally, the control system further comprises a capacitor and a capacitor switch, the capacitor and the reduction motor are connected in parallel, the capacitor and the capacitor switch are connected in series, and the capacitor switch is electrically connected with the controller.

[0018] By adopting the technical scheme, when the air valve is powered on, the capacitor will start to store a small amount of electric energy, and after power failure in an emergency, the electric energy stored in the capacitor will be released, and the air valve can automatically return to the initial state by using the released energy, so that the self-resetting effect is realized, and safety accidents are avoided.

[0019] Optionally, an inverted bevel is arranged between the end face of the first sponge close to the second sponge and the end face of the first sponge close to the first stop block, and an inverted bevel is arranged between the end face of the second sponge close to the first sponge and the end face of the second sponge close to the second stop block.

[0020] By adopting the technical scheme, the second sponge is provided with the opening hole consistent with the air hole, the inverted bevel shape makes the first sponge and the second sponge thinner at two ends and thicker in the middle, the two sponges are pressed against each other, the air hole on the valve seat and the valve core is effectively closed, and the air tightness is ensured.

[0021] Optionally, the valve seat is provided with a male screw at one end and a female screw at the other end.

[0022] By adopting the technical scheme, three-way, four-way, five-way and more fittings can be connected, and the combination mode can be selected according to actual needs.

[0023] Optionally, the control system further comprises a battery, a first input end of the battery is connected with the power supply section of the controller, a second input end is connected with the grounding end of the controller, a first output end is connected with one end of the current sensor, and a second output end is connected with one end of the speed reducer motor.

[0024] Optionally, the electric air valve further comprises a motor remote control, and the motor remote control is electrically connected with the controller.

[0025] By adopting the technical scheme, the remote start and stop of the speed reducer motor can be realized by adding the battery and the motor remote control, the air valve can be moved and used, the use scene is more convenient and flexible, the working strength of the operator is reduced, and the working safety is improved.

[0026] In summary, the utility model has at least one of the following beneficial technical effects:

[0027] The valve cover can be covered on the air hole, when the opening degree of the air valve needs to be controlled, the controller controls the total control switch to be opened, and then the speed reducer motor rotates, the speed reducer motor drives the valve cover to rotate, the valve cover is gradually covered on the air hole to reduce the opening degree, or the valve cover gradually moves away from the air hole to increase the opening degree, the control of the air inlet and air outlet amount of the air valve is realized, the control of the rotation angle is realized, the increase or decrease degree of the air inlet and air outlet amount is also proportional to the increase or decrease of the angle, and accurate control is realized.

[0028] The second stop block on the valve core can block the valve cover when the valve cover can be completely exposed to the air hole, and then the overcurrent protection of the speed reducer motor is used, the current sensor is used to detect the current of the speed reducer motor, when rotating to the position of the second stop block, the speed reducer motor cannot be further rotated, the current is increased, and finally the speed reducer motor is stopped.

[0029] When the air valve is powered on, the capacitor starts to store a small amount of electric energy, after power failure in an emergency, the electric energy stored in the capacitor is released, the air valve can automatically return to the initial state by using the released energy, the self-resetting effect is realized, and the occurrence of safety accidents is avoided. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0033] Figure 4 This is a partial structural schematic diagram of the present invention;

[0034] Figure 5 This is a circuit diagram of the present invention.

[0035] Explanation of reference numerals in the attached drawings: 1. Valve seat; 2. Valve core; 3. Valve cover; 4. Male thread; 5. Female thread; 6. Second stop; 7. Air hole; 8. Gear motor; 9. Controller; 10. Current sensor; 11. Main control switch; 12. Capacitor switch; 13. Capacitor; 14. Battery; 15. First sponge; 16. Second sponge; 17. First stop. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the embodiments.

[0037] Example 1: This example discloses an electric pneumatic valve.

[0038] Includes valve seat 1, valve core 2, valve cover 3, geared motor 8, control system, first sponge 15, second sponge 16, battery 14, and motor remote control;

[0039] A valve core 2 is mounted on the valve seat 1, and a fan-shaped air hole 7 is provided on the valve core 2. A geared motor 8 is mounted on the valve core 2, and a valve cover 3 is rotatably connected to the valve core 2 and connected to the output shaft of the geared motor 8. The valve core 2 is provided with a first stop block 14 and a second stop block 6. The geared motor 8 drives the valve cover 3 to rotate, and the second stop block 6 can block the valve cover 3. If the geared motor 8 is not stopped, its overcurrent protection feature will cause it to stop working.

[0040] The first sponge 15 is arranged on the valve cover 3, the second sponge 16 is arranged on the valve core 2 and is provided with an opening hole consistent with the air hole 7, and between the end surface of the first sponge 15 close to the second sponge 16 and the end surface of the first sponge 15 close to the first block 17, an inverted bevel is arranged; between the end surface of the second sponge 16 close to the first sponge 15 and the end surface of the second sponge 16 close to the second block 6, an inverted bevel is arranged, which effectively seals the air hole on the valve seat 1 and the valve core 2, and ensures the sealing of the gas,

[0041] The control system comprises a controller 9, a current sensor 10, a capacitor 13 and a capacitor switch 12, a battery 14 and a master control switch 11.

[0042] The positive electrode of the battery 14 is connected with the power supply end of the controller 9, and the negative electrode is connected with the ground end of the controller 9, thereby supplying power for the controller 9. The first input end of the master control switch 11 is connected with the positive electrode of the battery 14, and the second input end is connected with the negative electrode of the battery 14. The first output end of the master control switch 11 is connected with one end of the current sensor 10, and the second output end is connected with the speed reducer motor 8. The end of the current sensor 10 away from the master control switch 11 is connected with the speed reducer motor 8. When the first input end and the first output end of the master control switch 11 are connected, and the second input end and the second output end are connected, the speed reducer motor 8 rotates forward. When the first input end and the second output end of the master control switch 11 are connected, and the second input end and the first output end are connected, the speed reducer motor 8 rotates reversely. In other embodiments, the battery can be an external power supply.

[0043] The capacitor 13 is connected in parallel with the speed reducer motor 8, and the capacitor switch 12 is connected in series in the circuit where the capacitor 13 is located. The capacitor switch 12 is a normally closed switch.

[0044] The controller 9 is electrically connected with the master control switch 11, the capacitor switch 12 and the current sensor 10.

[0045] By using the master control switch 11 to control the speed reducer motor 8 through the controller 9, the valve cover 3 can be stopped at a predetermined position for accurate control. When the gas valve is powered on, the capacitor 13 will start to store a small amount of electric energy. After power failure in an emergency, the electric energy stored in the capacitor 13 will be released. By using the released energy, the electric gas valve can automatically return to the initial state, realizing the self-resetting effect and avoiding safety accidents.

[0046] The valve seat 1 is provided with a male thread 4 at one end and a female thread 5 at the other end.

[0047] The male thread 4 and the female thread 5 can realize the connection of three-way, four-way, five-way and more fittings, and the combination mode can be selected according to actual needs.

[0048] The control system is also provided with a plurality of sensor interfaces, which are in electrical signal connection with the controller 9, and can be connected with various sensors, such as gas sensors, pressure sensors, temperature sensors, etc. When connected with a pressure sensor, the controller 9 can directly close the valve cover 3 to stop the air inlet when the pressure exceeds the set threshold, and realize accurate closed-loop control according to the setting.

[0049] The implementation principle of the electric air valve of the embodiment is as follows: by adopting the technical scheme, the valve cover 3 can be arranged on the air hole 7, when it is necessary to control the opening degree of the air valve, the controller 9 controls the total control switch 11 to be opened, and then the reduction motor 8 rotates, the reduction motor 8 drives the valve cover 3 to rotate, the valve cover 3 gradually covers the air hole 7 to reduce the opening degree, or the valve cover 3 gradually moves away from the air hole 7 to increase the opening degree, so as to control the air inlet and air outlet of the air valve, control the rotation angle, and the increase or decrease of the air inlet and air outlet is also proportional to the increase or decrease of the angle, so as to realize accurate control.

[0050] The second block 6 on the valve core 2 can block the valve cover 3 when the valve cover 3 can completely expose the air hole 7, and then the overcurrent protection of the reduction motor 8 is used, the current sensor 10 is used to detect the current of the reduction motor 8, when rotating to the block position, the reduction motor 8 will stop due to the increase of the current caused by the inability to further rotate, and the first block 17 can limit the initial position of the valve cover 3, so that the valve cover 3 can cover the air hole 7 when it is restored to the position.

[0051] When the air valve is powered on, the capacitor 13 will start to store a small amount of electric energy, and after power failure in an emergency, the electric energy stored in the capacitor 13 will be released, and the air valve can automatically restore to the initial state by using the released energy, so as to realize the self-resetting effect and avoid safety accidents.

[0052] The first sponge 15 and the second sponge 16 are thinner at both ends and thicker in the middle, and the air port on the valve seat 1 and the valve core 2 is effectively closed by the mutual extrusion of the two sponges, so as to ensure the air tightness.

[0053] The addition of the battery 14 and the motor remote control can realize remote start and stop of the motor, and the use scene is more convenient and flexible.

[0054] The male thread 4 and the female thread 5 can realize connection of three-way, four-way, five-way and more fittings, and the combination mode can be selected according to actual needs.

[0055] The sensor interface can be connected with various types of sensors according to different use scenes and needs, and accurate closed-loop control can be realized according to the setting.

[0056] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electrically operated gas valve characterized by: It comprises a valve seat (1), a valve core (2), a valve cover (3), a speed reducer motor (8), a first sponge (15), a second sponge (16) and a control system. The valve core (2) is arranged on the valve seat (1), the valve core (2) is provided with a fan-shaped air hole (7), the speed reducer motor (8) is arranged on the valve core (2), the valve cover (3) is rotatably connected to the valve core (2), and the valve cover (3) is connected with the output shaft of the speed reducer motor (8), The first sponge (15) is arranged on the valve cover, and the second sponge (16) is arranged on the valve core. The control system comprises a controller (9) and a general control switch (11), and the controller (9) is electrically connected with the general control switch (11).

2. An electrically operated gas valve according to claim 1 wherein: The valve core (2) is provided with a first stop block (17) and a second stop block (6), and the control system further comprises a current sensor (10), and the current sensor (10) is electrically connected with the controller (9).

3. An electrically operated gas valve according to claim 1 wherein: The control system further comprises a capacitor (13) and a capacitor switch (12), the capacitor (13) and the speed reducer motor (8) are connected in parallel, the capacitor (13) and the capacitor switch (12) are connected in series, and the capacitor switch (12) is electrically connected with the controller (9).

4. An electrically operated gas valve according to claim 1 wherein: An inverted bevel is arranged between the end face of the first sponge (15) close to the second sponge (16) and the end face of the first sponge (15) close to the first stop block (17), and an inverted bevel is arranged between the end face of the second sponge (16) close to the first sponge (15) and the end face of the second sponge (16) close to the second stop block (6).

5. An electrically operated gas valve according to claim 1 wherein: The valve seat (1) is provided with a male thread (4) at one end and a female thread (5) at the other end.

6. An electrically operated gas valve according to claim 1 wherein: The control system further comprises a battery (14), the positive electrode of the battery (14) is connected with the power supply end of the controller (9), the negative electrode is connected with the grounding end of the controller (9), thereby supplying power for the controller (9).

7. An electrically operated gas valve according to claim 1 wherein: The electric air valve further comprises a motor remote control, and the motor remote control is electrically connected with the controller (9).

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