Carbon dioxide automatic detection exhaust device

Abstract

The utility model relates to the technical field of exhaust devices, specifically a carbon dioxide automatic detection exhaust device, comprising an exhaust fan, the exhaust fan is electrically connected to a carbon dioxide sensor for controlling the exhaust fan to be turned on and off, and also comprises an exhaust pipe, one end of the exhaust pipe is connected to the exhaust fan, and the other end is connected to a plurality of blades that can open and close the exhaust pipe; the blades are square in shape, the blades and the exhaust pipe are hinged at a first hinge point, the blades rotate to open the exhaust pipe when the exhaust fan is exhausting, and the blades return to a state of blocking the exhaust pipe after the exhaust is completed; the utility model can rotate to open the exhaust pipe when the exhaust fan is exhausting, and close the exhaust pipe after the exhaust is completed, and maintain the sealing of the enclosed space in the non-exhaust state by arranging the exhaust pipe and the fan.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, in particular to a carbon dioxide automatic detection exhaust device. Background Art

[0002] With the development of modern society, indoor air quality in closed production and living places such as greenhouses has attracted more and more attention. As one of the important indicators of indoor air quality, the control of carbon dioxide concentration is of great significance for improving indoor environmental comfort or the growth of plants and animals.

[0003] The patent with authorization announcement number CN210373939U discloses an automatic ventilation exhaust fan, including a motor, fan blades, a controller, a carbon dioxide detection sensor and a manual switch; the motor is used to drive the fan blades to rotate, the carbon dioxide detection sensor is connected to the controller, and is used to detect the concentration of carbon dioxide in the air; the controller is electrically connected to the motor; the exhaust fan is turned on or off according to the critical value of the carbon dioxide concentration; the disadvantage of this patent is that the exhaust fan will be in a breathable state regardless of whether it is on or off, and the sealing of the enclosed space cannot be guaranteed. Utility Model Content

[0004] The main purpose of the utility model is to provide a carbon dioxide automatic detection exhaust device to solve the problem that the exhaust fan in the prior art cannot ensure the sealing of the closed space.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a carbon dioxide automatic detection exhaust device, including an exhaust fan, the exhaust fan is electrically connected to a carbon dioxide sensor for controlling the exhaust fan to be turned on and off, and also includes an exhaust pipe, one end of the exhaust pipe is connected to the exhaust fan, and the other end is connected to a plurality of blades that can open and close the exhaust pipe.

[0006] Furthermore, the blade is square in shape, and is hinged to the exhaust pipe at a first hinge point. When the exhaust fan is exhausting air, the blade rotates to open the exhaust pipe, and after the exhaust is completed, the blade returns to a state of blocking the exhaust pipe.

[0007] Furthermore, a connecting rod is connected between adjacent blades, and the connecting rod and the blade are hinged at a second hinge point, and the second hinge point is spaced a certain distance from the first hinge point in the horizontal direction.

[0008] Furthermore, the connecting rod is located on both sides of the blade.

[0009] Furthermore, the carbon dioxide sensor is fixedly connected to the front side of the exhaust fan.

[0010] Furthermore, a control panel is fixedly connected to the front side of the exhaust fan, and the control panel is electrically connected to the exhaust fan.

[0011] The utility model provides an exhaust pipe and a fan, so that the exhaust fan can rotate to open the exhaust pipe when exhausting air, and close the exhaust pipe after exhausting air, and maintains the sealing of the closed space in a non-exhaust state. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0013] Figure 1 It is a structural schematic diagram of an embodiment;

[0014] Figure 2 It is a partial side view structural schematic diagram of the embodiment when the blades are opened;

[0015] Figure 3 It is a partial front view structural schematic diagram of the embodiment when the blades are opened;

[0016] Figure 4 It is a partial front view structural schematic diagram of the embodiment when the blades are closed;

[0017] Figure 5 It is a structural schematic diagram of the exhaust fan in the embodiment;

[0018] In the figure: 1. exhaust fan; 2. carbon dioxide sensor; 3. exhaust pipe; 4. blades; 401. first hinge point; 402. second hinge point; 5. connecting rod; 6. control panel. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] like Figures 1 to 5 As shown, according to an embodiment of the utility model, there is provided a carbon dioxide automatic detection exhaust device, comprising an exhaust fan 1, the exhaust fan 1 being electrically connected to a carbon dioxide sensor 2 for controlling the exhaust fan 1 to be turned on and off, the carbon dioxide sensor 2 being fixedly connected to the front side of the exhaust fan 1; a control panel 6 being fixedly connected to the front side of the exhaust fan 1, the control panel 6 being electrically connected to the exhaust fan 1; and an exhaust pipe 3 being also included, one end of the exhaust pipe 3 being connected to the exhaust fan 1, and the other end being connected to a plurality of blades 4 which can open and close the exhaust pipe 3.

[0021] like Figure 2-Figure 4 As shown, the blade 4 is square in shape and is hinged to the exhaust pipe 3 at the first hinge point 401. When the exhaust fan 1 is exhausting air, the blade 4 rotates under the action of wind to open the exhaust pipe 3. After the exhaust is completed, the blade 4 returns to the state of blocking the exhaust pipe 3.

[0022] like Figure 2 As shown, connecting rods 5 are connected between adjacent blades 4, and the connecting rods 5 are located on both sides of the blades 4; the connecting rods 5 and the blades 4 are hinged at a second hinge point 402, and the second hinge point 402 is spaced a certain distance from the first hinge point 401 in the horizontal direction; by setting the connecting rod 5, multiple blades 4 can be opened and closed at the same time.

[0023] The working principle of the above embodiment is:

[0024] The carbon dioxide automatic detection and exhaust device is installed on the side wall of the closed place. When the carbon dioxide sensor 2 senses that the carbon dioxide concentration exceeds a certain threshold, it controls the exhaust fan 1 to start and exhaust gas to the outside of the closed place. When exhausting, the blades 4 open under the action of wind, and the gas is discharged along the exhaust pipe 3; when the carbon dioxide concentration is lower than a certain threshold, the carbon dioxide sensor 2 controls the exhaust fan 1 to close, and the blades 4 close under the action of gravity to close the exhaust pipe 3.

[0025] This embodiment can maintain the sealing of the closed place in a non-exhaust state, maintain the temperature in the closed place, and prevent foreign objects from entering the closed place.

[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A carbon dioxide automatic detection and exhaust device, comprising an exhaust fan (1), wherein the exhaust fan (1) is electrically connected to a carbon dioxide sensor (2) for controlling the exhaust fan (1) to be turned on and off, and wherein: It also comprises an exhaust pipe (3), one end of the exhaust pipe (3) being connected to the exhaust fan (1), and the other end of the exhaust pipe (3) being connected to a plurality of blades (4) capable of opening and closing the exhaust pipe (3); The blade (4) is square in shape, and is hinged to the exhaust pipe (3) at a first hinge point (401); when the exhaust fan (1) is exhausting air, the blade (4) rotates to open the exhaust pipe (3); and after the exhaust is completed, the blade (4) returns to a state of blocking the exhaust pipe (3); A connecting rod (5) is connected between adjacent blades (4); the connecting rod (5) and the blade (4) are hinged at a second hinge point (402); the second hinge point (402) is spaced a certain distance from the first hinge point (401) in the horizontal direction.

2. The carbon dioxide automatic detection and exhaust device according to claim 1, characterized in that: The connecting rod (5) is located on both sides of the blade (4).

3. The carbon dioxide automatic detection and exhaust device according to claim 1, characterized in that: The carbon dioxide sensor (2) is fixedly connected to the front side of the exhaust fan (1).

4. The carbon dioxide automatic detection and exhaust device according to claim 1, characterized in that: A control panel (6) is fixedly connected to the front side of the exhaust fan (1), and the control panel (6) is electrically connected to the exhaust fan (1).

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