Electric flue check valve
Through the design of the electric flue check valve, the valve disc opening size is adjusted by servo motor and rubber plate, which solves the problems of valve disc collision and noise in the prior art, and achieves stable flow control and motor protection.
Patent Information
- Application Number
- CN202420241496.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The existing flue check valve cannot adjust the flow rate according to the gear set by the range hood, resulting in easy collision and damage between the valve discs and high noise.
An electric flue check valve is designed, and a servo motor drives the push plate to drive the push plate. The valve disc is opened through the sliding groove and the rubber plate, and a protective shell is installed inside the servo motor to prevent oil smoke from entering.
The valve flap opening range is realized according to the range hood gear, avoid collision damage, reduce noise, and prevent the gas fume from damaging the motor.
Smart Images
Figure CN222229547U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue check valves, in particular to an electric flue check valve. Background Art
[0002] The flue check valve is also called a reverse flow valve, non-return valve, back pressure valve, one-way valve, and flue valve; this type of valve is automatically opened and closed by the force generated by the flow of the medium in the pipeline. It is an automatic valve. The flue check valve is one of the necessary devices for every family to install a range hood, so it is necessary to optimize the flue check valve.
[0003] For example, a flue check valve is disclosed in a Chinese utility model patent with announcement number CN220102179U. In the above-mentioned prior art, although an oil-absorbing cotton wipe is installed on the base plate, and the oil-absorbing cotton wipe is detachably connected to the base plate by Velcro, which is convenient for cleaning oil stains and easy to use, the opening and closing of the flue check valve is achieved by a torsion spring, and the flow rate cannot be adjusted according to the gear position set by the range hood. When gas is discharged, the two valve flaps will open. When the amount of discharged gas is unstable, the opening and closing of the valve flaps will change continuously, causing the two valve flaps to easily collide with each other and cause loosening and damage, and the collision between the two valve flaps will also produce noise. Therefore, it is necessary to design a flue check valve that can adjust the opening and closing of the valve flaps to control the flow rate according to the gear position set by the range hood. Utility Model Content
[0004] In order to solve the technical problem that the existing flue check valve cannot adjust and control the flow according to the setting gear of the range hood, resulting in easy damage due to collision between valve discs, the utility model provides an electric flue check valve.
[0005] The utility model is implemented by the following technical scheme: an electric flue check valve, comprising a mounting base, a valve body is arranged on one side of the mounting base, a rotating shaft is rotatably mounted inside the valve body, valve flaps are rotatably mounted on both sides of the rotating shaft, a torsion spring assembly is arranged on one side of the two valve flaps to allow the two valve flaps to automatically close after opening, an adjusting assembly is arranged inside the valve body to control the opening size of the two valve flaps for flow regulation, an electric assembly is arranged on one side of the adjusting assembly to drive the adjusting assembly for regulation, and a protective assembly is arranged on the electric assembly to protect the electric assembly from oil pollution.
[0006] Through the above technical solution, when the range hood is turned on, the electric component will adjust the position of the regulating component according to the corresponding gear to prevent the two valve discs from colliding with each other and causing damage.
[0007] As a further improvement of the above scheme, sliding grooves are provided on both sides of the inner wall of the valve body, and the adjustment assembly includes a sliding plate slidably installed inside each sliding groove, a limit plate fixedly installed at one end of each sliding plate, and a rubber plate fixedly installed on one side of each limit plate, and one side of each rubber plate is in contact with one side of an adjacent valve disc.
[0008] Through the above technical solution, after the two valve flaps are opened, they will come into contact with the rubber plate, and the rubber plate will control the opening range of the valve flaps and reduce the noise of collision.
[0009] As a further improvement of the above scheme, the electric component includes a servo motor arranged inside the valve body, a connecting rod fixedly installed at the output end of the servo motor and a screw fixedly installed at one end of the connecting rod, and a push plate is provided on the threaded sleeve on the outer surface of the screw, and both ends of the push plate extend into adjacent sliding grooves and are fixedly installed with adjacent sliding plates.
[0010] Through the above technical solution, when the servo motor rotates, the screw rod will drive the push plate to move up and down, thereby adjusting the size of the opening of the two valve flaps.
[0011] As a further improvement of the above solution, the protection assembly includes a support plate fixedly installed inside the valve body and a protection shell fixedly installed on one side of the support plate to wrap and protect the servo motor.
[0012] Through the above technical solution, the protective shell can wrap the servo motor to prevent oil smoke from entering the inside of the motor.
[0013] As a further improvement of the above solution, rubber strips for reducing the opening and closing noise of the valve flaps are fixedly installed on the opposite surfaces of the two valve flaps, and the two rubber strips are in contact with each other.
[0014] Through the above technical solution, the opening and closing of the two valve flaps will be cushioned by the rubber strip, thereby reducing vibration and noise.
[0015] As a further improvement of the above solution, a limiting plate is fixedly mounted on one end of the screw rod to prevent the push plate from detaching.
[0016] Through the above technical solution, the limiting plate prevents the screw rod from rotating too much and causing the pushing plate to separate from the screw rod.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] The utility model provides an adjusting component, an electric component and a protective component, so that when the range hood is in use, the electric component is controlled according to the gear position set for the range hood. The electric component allows the adjusting component to move to a corresponding position according to the size of the opening gear of the range hood, thereby controlling the opening range of the two valve flaps, thereby preventing unstable airflow from causing abnormal opening and closing of the two valve flaps and causing collision and damage. The protective component can also prevent oil smoke from entering the interior of the electric component and causing damage to the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the structure of the utility model having an adjustment component;
[0021] Figure 3 It is a schematic diagram of the structure of the utility model with an electric component.
[0022] Description of main symbols:
[0023] 1. Mounting base; 2. Valve body; 3. Rotating shaft; 4. Valve disc; 5. Torsion spring assembly; 601. Sliding plate; 602. Limiting plate; 603. Rubber plate; 701. Servo motor; 702. Connecting rod; 703. Screw rod; 801. Support plate; 802. Protective shell; 9. Pushing plate; 10. Rubber strip; 11. Limiting plate. DETAILED DESCRIPTION
[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
[0025] Please combine Figure 1-Figure 3 An electric flue check valve of the present embodiment includes a mounting base 1, a valve body 2 is provided on one side of the mounting base 1, a rotating shaft 3 is rotatably installed inside the valve body 2, valve flaps 4 are rotatably installed on both sides of the rotating shaft 3, a torsion spring assembly 5 is provided on one side of the two valve flaps 4 for automatically closing the two valve flaps 4 after opening, an adjusting assembly for controlling the opening size of the two valve flaps 4 for flow regulation is provided inside the valve body 2, an electric assembly for driving the adjusting assembly for regulation is provided on one side of the adjusting assembly, and a protective assembly for protecting the electric assembly from oil pollution is provided on the electric assembly.
[0026] Combination Figure 2 and Figure 3Sliding grooves are provided on both sides of the inner wall of the valve body 2. The adjusting assembly includes a sliding plate 601 slidably installed inside each sliding groove, a limit plate 602 fixedly installed at one end of each sliding plate 601, and a rubber plate 603 fixedly installed on one side of each limit plate 602. One side of each rubber plate 603 is in contact with one side of the adjacent valve flap 4. After the two valve flaps 4 are opened, they will contact the rubber plate 603. The rubber plate 603 will control the opening range of the valve flap 4 and reduce the noise of collision.
[0027] Combination Figure 2 and Figure 3 The electric component includes a servo motor 701 arranged inside the valve body 2, a connecting rod 702 fixedly installed at the output end of the servo motor 701, and a screw rod 703 fixedly installed at one end of the connecting rod 702. The outer surface of the screw rod 703 is threadedly sleeved with a push plate 9. Both ends of the push plate 9 extend into the adjacent sliding grooves and are fixedly installed with the adjacent sliding plate 601. When the servo motor 701 rotates, the screw rod 703 will drive the push plate 9 to move up and down, thereby adjusting the opening size of the two valve flaps 4.
[0028] Combination Figure 1 The protection component includes a support plate 801 fixedly installed inside the valve body 2 and a protection shell 802 fixedly installed on one side of the support plate 801 to wrap and protect the servo motor 701. The protection shell 802 can wrap the servo motor 701 to prevent oil smoke from entering the motor.
[0029] Combination Figure 2 The opposite surfaces of the two valve flaps 4 are fixedly installed with rubber strips 10 for reducing the opening and closing noise of the valve flaps 4. The two rubber strips 10 are in contact with each other. A limiting plate 11 is fixedly installed at one end of the screw rod 703 to prevent the push plate 9 from detaching.
[0030] The implementation principle of an electric flue check valve in the embodiment of the present application is as follows: when the range hood is turned on and the gear is set, the servo motor 701 will be started and rotated according to the gear setting, so that the screw rod 703 rotates to drive the push plate 9 to move. The movement of the push plate 9 will drive the two sliding plates 601 to move together, thereby driving the two limit plates 602 and the two rubber plates 603 to move together, so that when the two valve flaps 4 are opened by the airflow, they will contact and limit with the two rubber plates 603 to avoid the two valve flaps 4 from opening abnormally and colliding with each other due to unstable airflow, causing loosening and damage. The flow rate is adjusted according to the gear of the range hood to prevent the range hood from needing to exhaust a large amount of gas, so that the two valve flaps 4 can be opened to the maximum extent without colliding with each other. Only contacting with the rubber plate 603 can reduce the impact force caused by opening, and at the same time can also reduce the noise caused by the impact.
[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. An electric flue check valve, comprising a mounting base (1), a valve body (2) being provided on one side of the mounting base (1), a rotating shaft (3) being rotatably mounted inside the valve body (2), valve flaps (4) being rotatably mounted on both sides of the rotating shaft (3), a torsion spring assembly (5) being provided on one side of the two valve flaps (4) for automatically closing the two valve flaps (4) after opening, characterized in that: The valve body (2) is provided with an adjusting component inside to control the opening size of the two valve flaps (4) to adjust the flow rate, one side of the adjusting component is provided with an electric component to drive the adjusting component to adjust, and the electric component is provided with a protective component to protect the electric component from oil pollution.
2. An electric flue check valve as claimed in claim 1, characterized in that: Sliding grooves are provided on both sides of the inner wall of the valve body (2), and the adjustment component includes a sliding plate (601) slidably installed inside each sliding groove, a limit plate (602) fixedly installed at one end of each sliding plate (601), and a rubber plate (603) fixedly installed on one side of each limit plate (602), and one side of each rubber plate (603) is in contact with one side of an adjacent valve flap (4).
3. An electric flue check valve as claimed in claim 2, characterized in that: The electric assembly comprises a servo motor (701) arranged inside the valve body (2), a connecting rod (702) fixedly mounted on the output end of the servo motor (701), and a screw rod (703) fixedly mounted on one end of the connecting rod (702), wherein a push plate (9) is threadedly sleeved on the outer surface of the screw rod (703), and both ends of the push plate (9) extend into adjacent sliding grooves and are fixedly mounted on adjacent sliding plates (601).
4. An electric flue check valve as claimed in claim 3, characterized in that: The protection assembly comprises a support plate (801) fixedly mounted inside the valve body (2) and a protection shell (802) fixedly mounted on one side of the support plate (801) to wrap and protect the servo motor (701).
5. An electric flue check valve as claimed in claim 1, characterized in that: The opposite surfaces of the two valve flaps (4) are fixedly mounted with rubber strips (10) for reducing the opening and closing noise of the valve flaps (4), and the two rubber strips (10) are in close contact with each other.
6. An electric flue check valve as claimed in claim 3, characterized in that: A limiting plate (11) is fixedly mounted on one end of the screw rod (703) to prevent the push plate (9) from detaching.