Electric flue check valve

Abstract

The utility model relates to the technical field of flue check valves, in particular to an electric flue check valve. Comprising an installation base, a ventilation shell assembly and a wind shield assembly. The ventilation shell assembly comprises a shell and a motor. The shell is transversely arranged, the motor is installed on the top of the shell, and an output shaft of the motor is connected with the wind shield assembly located in the shell and used for controlling the wind shield to rotate. And the mounting seat is connected with one end of the shell and is used for mounting the shell at the ventilation opening. The motor connected with the wind shield assembly is arranged, rotation of the motor drives rotation of the wind shield assembly, manual control is replaced by control of the motor, the check valve is convenient to control, and the device is convenient to use; through control of the motor, the size of the channel in the shell and the closing degree of the channel can be accurately controlled, and the channel ventilation effect and the smoke non-return effect are better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flue check valve technical field, concretely relates to a kind of electric flue check valve. BACKGROUND

[0002] Flue check valve is the common flue equipment on market, it is found in actual use process, the flue check valve commonly used on market is simple mechanical structure, when using, it needs to open switch manually or to open the passage in flue check valve by carrying smoke airflow, flue check valve itself cannot be opened automatically, simultaneously, the flue opening of the passage in flue check valve is relatively small, inconvenient to use;When closing, it can not be closed firmly, there is gap, leading to the effect of smoke check is not good. SUMMARY

[0003] In view of the problems in the prior art, the utility model aims at providing a kind of electric flue check valve, to solve the problem of flue check valve in prior art when using needs to open switch manually or airflow to open, inconvenient to use.

[0004] A kind of electric flue check valve, including mounting seat, ventilation shell assembly and baffle assembly;

[0005] The ventilation shell assembly includes shell and motor;The shell is transversely arranged, and the motor is arranged at the top of the shell, and the output shaft of the motor is connected with the baffle assembly located in the shell interior, for controlling the rotation of the baffle;The mounting seat is connected with one end of the shell, for mounting the shell at the ventilation opening.

[0006] Further, the ventilation shell assembly includes motor cover and transmission shaft;The top of the shell is provided with motor base, the transmission shaft is rotatably connected in the motor base, the top end of the transmission shaft is connected with the output shaft located at the bottom of the motor, and the bottom end of the transmission shaft is connected with the baffle assembly;The motor cover is connected with the motor base, and is used for fixing the motor with the motor base.

[0007] Further, a limit switch is installed in the motor base, and a limiting portion is provided on the top of the transmission shaft, which is used to cooperate with the limit switch to limit the rotation angle of the transmission shaft.

[0008] Further, the baffle assembly includes a first baffle, a sealing ring and a second baffle for clamping and fixing the sealing ring in cooperation with the first baffle.

[0009] Further, a connecting column for rotating connection with the shell is provided on the second baffle.

[0010] Further, the mounting seat is provided with a level meter near the bottom of the side surface of the shell.

[0011] Further, the mounting seat is provided with a mounting clamping strip on the side away from the shell, which is used for connecting with a fixed mounting clamping strip fixedly mounted at the air vent.

[0012] Further, the mounting seat is provided with a reinforcing rib on the side away from the shell.

[0013] Further, a variable-diameter interface is connected with an end of the shell away from the mounting seat.

[0014] Beneficial effects: the utility model discloses a motor connected with the wind deflector assembly, and the rotation of the motor drives the rotation of the wind deflector assembly, so that manual control is replaced by the control of the motor, the control of the check valve is facilitated, and the use of the device is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the specification will be simply introduced, and obviously, the drawings in the following description are only some embodiments recorded in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0016] Figure 1 It is the overall structure diagram of the utility model embodiment Figure One

[0017] Figure 2 It is the overall structure diagram of the utility model embodiment Figure Two

[0018] Figure 3 It is the limit switch installation schematic view of the utility model embodiment;

[0019] Figure 4 It is the explosion of the utility model embodiment Figure One

[0020] Figure 5 It is the explosion of the utility model embodiment Figure Two

[0021] Mark 1, variable-diameter interface;2, wind deflector assembly;2001, front wind deflector;2002, sealing silica gel ring;2003, rear wind deflector;3, ventilation shell assembly;3001, motor cover;3002, motor;3003, transmission shaft;30031, limiting portion;3004, limit switch;3005, shell;30051, motor base;4, mounting seat;4001, mounting clamping strip;4002, mounting fixed steel strip;4003, reinforcing rib.​​​​ Detailed Implementation

[0022] 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, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] like Figures 1-5 The electric flue backflow preventer shown includes a variable diameter interface 1, a baffle plate assembly 2, a ventilation housing assembly 3, and a mounting base 4;

[0025] The ventilation housing assembly 3 includes a housing 3005, a motor 3002, a motor cover 3001, a drive shaft 3003, and a limit switch 3004. The housing 3005 is horizontally positioned for installation at an indoor ventilation opening. A motor 3002 base, integrally formed with the housing 3005, is located on the outer top of the housing 3005. A vertically positioned drive shaft 3003 is rotatably connected inside the motor 3002 base. The top of the drive shaft 3003 is connected to the output shaft at the bottom of the vertically positioned motor 3002. The top of the motor 3002 is installed inside the motor cover 3001, which covers the top of the motor 3002 base and is connected to it. The bottom of the drive shaft 3003 extends downward and is connected to a baffle assembly 2 located inside the housing 3005. The drive shaft 3003 drives the baffle assembly 2 to rotate. One end of the housing 3005 is connected to a reducing pipe, and the other end is connected to a mounting base 4.

[0026] In this embodiment, the motor 3002 can be used in cooperation with the controller, which can be a controller in the prior art. By connecting the controller with the motor 3002, the motor 3002 controls the rotation of the windshield assembly 2. The overall structure of the device is simple, and the electric motor is used instead of the manual one, which is convenient to use. The controller can be a separate controller or a shared controller with other kitchen utensils. Preferably, a sensor cooperating with the motor 3002 can be provided, so that the motor 3002 can be automatically started, further facilitating use. The sensor can be a smoke sensor or a temperature sensor. The motor cover 3001 is used to cooperate with the motor seat 3002 to fix the motor 3002.

[0027] The ventilation housing assembly 3 further comprises two limit switches 3004; the two limit switches 3004 are installed in the motor 3002 seat and are used in cooperation with the limit part 30031 located at the top end of the transmission shaft 3003 to limit the rotation angle of the transmission shaft 3003; the top of the transmission shaft 3003 is provided with a special-shaped groove which is adapted to the output shaft of the motor 3002 and is used for inserting the output shaft of the motor 3002.

[0028] In this embodiment, the limit switch 3004 is provided to control the rotation structure of the transmission shaft 3003. Specifically, within a range of 180°, the transmission is carried out, and two side parts extend to the axis of the housing 3005 inside the housing 3005. The two side parts are used to abut against different sides of the windshield assembly 2 when the windshield assembly 2 rotates to close the channel inside the housing 3005, and to close the gap between the windshield assembly 2 and the inner side of the housing 3005.

[0029] The windshield assembly 2 comprises a first windshield 2001, a sealing silica gel ring 2002, and a second windshield 2003. The sealing silica gel ring 2002 is provided on one side of the second windshield 2003, and the first windshield 2001 is provided on the side of the sealing silica gel ring 2002 away from the second windshield 2003. The first windshield 2001 and the second windshield 2003 are welded by ultrasonic waves and clamp and fix the sealing silica gel ring 2002 located between the first windshield 2001 and the second windshield 2003. The top end and the bottom end of the second windshield 2003 are respectively provided with connecting columns which are inserted into the inner wall of the housing 3005 and are rotationally connected with the inner wall of the housing 3005, and the connecting column at the top end is connected with the bottom end of the transmission shaft 3003. The sealing silica gel ring 2002 is a kind of sealing ring, and other materials can be selected to make the sealing ring according to needs.

[0030] In this embodiment, the windshield assembly 2 has a simple structure and is convenient to install and use.

[0031] The variable diameter interface 1 is coaxially connected with the shell 3005, one end of the variable diameter interface 1 is provided with an annular mounting groove, the groove width of the mounting groove is matched with the width of the end of the shell 3005, and the end of the shell 3005 is inserted; the other end of the variable diameter interface 1 is provided with a tapered hole, and the hole diameter and the outer diameter of the tapered hole gradually decrease away from the shell 3005.

[0032] In the embodiment, the structure of the variable diameter interface 1 is arranged to connect pipes of different specifications and sizes, thereby expanding the application range of the device and facilitating the use of the device.

[0033] The mounting seat 4 is fixedly connected with the mounting surface through fasteners at four corners; one side surface of the mounting seat 4 is connected with the shell 3005, and the bottom of the side surface of the mounting seat 4 close to the shell 3005 is provided with a level; the upper and lower sides of the side surface of the mounting seat 4 away from the shell 3005 are respectively provided with mounting clamping strips 4001, the mounting clamping strips 4001 are used for corresponding connection with the end of the vertically arranged mounting fixed steel strip 4002; the side surface of the mounting seat 4 away from the shell 3005 is provided with a reinforcing rib 4003, which is used for enhancing the strength of the mounting seat 4.

[0034] In the embodiment, the mounting fixed steel strip 4002 is fixedly installed at the ventilation opening, and can be used for fixing the mounting seat 4 and facilitating the subsequent fixing of the mounting seat 4 through fasteners.

[0035] Working process: install the device at the ventilation opening, install the sensor at the inlet of the smoke pipeline communicated with the device, the sensor senses the smoke, the motor 3002 is started, the passage in the shell 3005 is opened through the rotation of the wind shield assembly 2, the smoke flows out from the ventilation opening, the indoor smoke is eliminated, the wind shield assembly 2 is reversed, and the passage in the shell 3005 is closed.

[0036] Although the preferred embodiments of the present application have been described, those skilled in the art who know the basic inventive concept can make other changes and modifications to the embodiments. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and changes.

Claims

1. An electric flue gas backflow preventer, characterized in that, Includes mounting base, ventilation housing assembly, and wind deflector assembly; The ventilation housing assembly includes a housing and a motor; the housing is arranged horizontally, the motor is located on the top of the housing, and the output shaft of the motor is connected to a baffle assembly located inside the housing for controlling the rotation of the baffle; the mounting base is connected to one end of the housing for installing the housing at the ventilation opening.

2. The electric flue gas check valve according to claim 1, characterized in that, The ventilation housing assembly includes a motor cover and a drive shaft; a motor base is provided on the top of the housing, and a drive shaft is rotatably connected inside the motor base. The top end of the drive shaft is connected to an output shaft located at the bottom of the motor, and the bottom end of the drive shaft is connected to a baffle assembly; the motor cover is connected to the motor base and is used to fix the motor in place.

3. The electric flue check valve according to claim 2, characterized in that, A limit switch is installed inside the motor base, and a limit part is provided on the top of the drive shaft. The limit part is used to cooperate with the limit switch to limit the rotation angle of the drive shaft.

4. An electric flue gas check valve according to any one of claims 1-3, characterized in that, The wind deflector assembly includes a first wind deflector, a sealing ring, and a second wind deflector for cooperating with the first wind deflector to clamp and fix the sealing ring.

5. The electric flue check valve according to claim 4, characterized in that, The second wind deflector is provided with a connecting post for rotatably connecting with the housing.

6. An electric flue check valve according to any one of claims 1-3, characterized in that, A level is provided at the bottom of the mounting base on one side near the housing.

7. An electric flue gas check valve according to any one of claims 1-3, characterized in that, The mounting base has a mounting strip on one side away from the housing, and the mounting strip is used to connect with a fixed mounting strip that is fixedly installed at the vent.

8. The electric flue check valve according to claim 7, characterized in that, The mounting base has a reinforcing rib on the side opposite to the housing.

9. An electric flue check valve according to any one of claims 1-3, characterized in that, It includes a variable diameter interface, which is connected to the end of the housing opposite to the mounting base.

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