Exhaust fan with good ventilation effect

Abstract

The exhaust fan with the good ventilation effect comprises a supporting plate, the upper surface of the supporting plate is fixedly connected with a gas collecting hood, the upper surface of the gas collecting hood is fixedly connected with a suction fan through bolts, the back face of the gas collecting hood is fixedly connected with a draught fan through bolts, the output end of the draught fan is fixedly connected with an air supply pipe, and the output end of the draught fan is fixedly connected with an exhaust fan. The end, away from the draught fan, of the air supply pipe is fixedly connected with the outer surface of the air guide pipe. According to the exhaust fan with the good ventilation effect, when ventilation is conducted, a worker can start the air suction fan and the draught fan, the air suction fan can exhaust air through the air collecting hood, the draught fan can suck external air, new air is sprayed into a room through the air spraying head through transmission of the air supply pipe and the air guide pipe, and new fresh air can enter the room while exhaust is conducted; therefore, the purpose of rapid air exchange is achieved, and the air exchange effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust fans, in particular to an exhaust fan with good ventilation effect. Background Art

[0002] Exhaust fan, also known as ventilation fan, negative pressure fan, negative pressure fan, etc., is a type of air conditioning appliance that uses an electric motor to drive the rotation of the fan blades to drive the air flow, so that the indoor and outdoor air are exchanged. The exhaust fan uses air convection to keep the room in a negative pressure state, forming a suction force, continuously inhaling outdoor air and expelling the stuffy air in the room, thereby achieving the effect of ventilation and cooling. Exhaust fans are widely used in homes and public places.

[0003] Existing exhaust fans are generally only equipped with one blower, and exhaust and blowing interfere with each other. New air cannot be blown in while exhausting, so the ventilation effect is poor. For this reason, we propose an exhaust fan with good ventilation effect. Utility Model Content

[0004] The main purpose of the utility model is to provide an exhaust fan with good ventilation effect, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An exhaust fan with good ventilation effect includes a support plate, an upper surface of the support plate is fixedly connected to an air collecting hood, the upper surface of the air collecting hood is fixedly connected to an air suction fan by bolts, the back side of the air collecting hood is fixedly connected to a fan by bolts, the output end of the fan is fixedly connected to an air supply pipe, and the end of the air supply pipe away from the fan is fixedly connected to the outer surface of the air guide pipe.

[0007] In order to facilitate the replacement of the nozzle, as an exhaust fan with good ventilation effect of the utility model, the outer surface of the air guide pipe is fixedly connected to the mounting seat, and the internal thread of the mounting seat is connected to the nozzle.

[0008] In order to make the air duct more firmly installed, as an exhaust fan with good ventilation effect of the utility model, the upper surface of the support plate is fixedly connected with a support rod, and the top end of the support rod is fixedly connected to the outer surface of the air duct.

[0009] In order to facilitate the installation of the exhaust fan, as an exhaust fan with good ventilation effect of the utility model, the outer surface of the air collecting cover is fixedly connected with a mounting plate, and the interior of the mounting plate is provided with positioning bolts.

[0010] In order to allow indoor air to enter the interior of the air collecting hood, as an exhaust fan with good ventilation effect of the utility model, the lower surface of the support plate is provided with air holes, and the number of the air holes is multiple.

[0011] In order to facilitate the installation of the air supply pipe, as an exhaust fan with good ventilation effect of the utility model, the lower surface of the support plate is fixedly connected with a baffle frame, the upper surface of the installation plate is provided with a limiting groove, and the air supply pipe is inserted into the limiting groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The exhaust fan with good ventilation effect is arranged in coordination among a support plate, an air collecting hood, an air intake fan, a blower, an air supply pipe, an air guide pipe, a nozzle head, an air hole and a baffle frame. When ventilation is performed, a worker can start the air intake fan and the blower. The air intake fan can discharge the air through the air collecting hood, and the blower can absorb the external air, pass through the air supply pipe and the air guide pipe, and the nozzle head sprays the new air into the room. At the same time of exhausting the air, new fresh air can be introduced, so that the indoor air quality is improved, thereby achieving the purpose of rapid ventilation and better ventilation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the axonometric structure of an exhaust fan with good ventilation effect according to Example 1 of the present utility model;

[0015] Figure 2 This is a rear axonometric structural diagram of an exhaust fan with good ventilation effect according to Example 1 of the present utility model;

[0016] Figure 3 This is a schematic diagram of the axonometric structure of an exhaust fan with good ventilation effect according to Example 1 of the present utility model;

[0017] Figure 4 This is a schematic cross-sectional isometric structural diagram of an exhaust fan with good ventilation effect according to Example 1 of the present utility model;

[0018] Figure 5 This is a partially enlarged structural schematic diagram of an exhaust fan with good ventilation effect in Example 1 of the utility model.

[0019] In the figure: 1. Support plate; 2. Air collecting hood; 3. Suction fan; 4. Fan; 5. Air supply duct; 6. Air guide duct; 7. Mounting base; 8. Injection nozzle; 9. Support rod; 10. Mounting plate; 11. Air hole; 12. Stop frame; 13. Limiting slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1-5 As shown, an exhaust fan with good ventilation effect includes a support plate 1, an air collecting hood 2 is fixedly connected to the upper surface of the support plate 1, an air suction fan 3 is fixedly connected to the upper surface of the air collecting hood 2 by bolts, a fan 4 is fixedly connected to the back side of the air collecting hood 2 by bolts, an output end of the fan 4 is fixedly connected to an air supply pipe 5, and the end of the air supply pipe 5 away from the fan 4 is fixedly connected to the outer surface of the air guide pipe 6.

[0023] During specific use, through the coordinated arrangement among the support plate 1, the air collecting hood 2, the air suction fan 3, the fan 4, the air supply pipe 5, the air guide pipe 6, the nozzle head 8, the air hole 11 and the baffle frame 12, when ventilation is performed, the staff can start the air suction fan 3 and the fan 4, the air suction fan 3 can discharge the air through the air collecting hood 2, the fan 4 can absorb the external air, and pass it through the air supply pipe 5 and the air guide pipe 6, and the nozzle head 8 sprays the new air into the room. At the same time of exhausting, new fresh air can enter, so that the indoor air quality is changed, thereby achieving the purpose of rapid ventilation and better ventilation effect.

[0024] In this embodiment, the outer surface of the air guide pipe 6 is fixedly connected to the mounting seat 7 , and the inner thread of the mounting seat 7 is connected to the air injection head 8 .

[0025] During specific use, the installation of the mounting seat 7 facilitates the disassembly, assembly and replacement of the air jet head 8, making subsequent maintenance more convenient.

[0026] In this embodiment, a support rod 9 is fixedly connected to the upper surface of the support plate 1 , and the top end of the support rod 9 is fixedly connected to the outer surface of the air duct 6 .

[0027] During specific use, the air duct 6 can be supported by the setting of the support rod 9, so that the air duct 6 can be installed more firmly.

[0028] In this embodiment, a mounting plate 10 is fixedly connected to the outer surface of the gas collecting hood 2 , and positioning bolts are provided inside the mounting plate 10 .

[0029] During specific use, the installation of the mounting plate 10 facilitates the installation of the device on the inner top wall of a room, thereby improving stability.

[0030] In this embodiment, a plurality of air holes 11 are formed on the lower surface of the support plate 1 .

[0031] During specific use, the air holes 11 are provided to facilitate indoor air to enter the air collecting hood 2 and then be exhausted by the air suction fan 3 .

[0032] In this embodiment, a baffle 12 is fixedly connected to the lower surface of the support plate 1 , and a limiting groove 13 is provided on the upper surface of the mounting plate 10 . The air supply pipe 5 is inserted into the limiting groove 13 .

[0033] During specific use, the setting of the limiting groove 13 facilitates the installation of the air supply pipe 5.

[0034] Working principle: When ventilation is carried out, the staff can start the suction fan 3 and the blower 4. The suction fan 3 can discharge the air through the air collecting hood 2, and the blower 4 can absorb the external air, and pass it through the air supply pipe 5 and the air guide pipe 6. The nozzle 8 sprays the new air into the room. At the same time of exhausting, new fresh air can enter, so that the indoor air quality is changed, thereby achieving the purpose of rapid ventilation and better ventilation effect.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust fan with good ventilation effect, comprising a support plate (1), characterized in that: The upper surface of the support plate (1) is fixedly connected to an air collecting hood (2), the upper surface of the air collecting hood (2) is fixedly connected to an air suction fan (3) via bolts, the back surface of the air collecting hood (2) is fixedly connected to a fan (4) via bolts, the output end of the fan (4) is fixedly connected to an air supply pipe (5), and the end of the air supply pipe (5) away from the fan (4) is fixedly connected to the outer surface of the air guide pipe (6).

2. The exhaust fan with good ventilation effect according to claim 1, characterized in that: The outer surface of the air guide pipe (6) is fixedly connected to a mounting seat (7), and the inner thread of the mounting seat (7) is connected to a nozzle (8).

3. The exhaust fan with good ventilation effect according to claim 1, characterized in that: A support rod (9) is fixedly connected to the upper surface of the support plate (1), and the top end of the support rod (9) is fixedly connected to the outer surface of the air guide pipe (6).

4. The exhaust fan with good ventilation effect according to claim 1, characterized in that: The outer surface of the gas collecting hood (2) is fixedly connected to a mounting plate (10), and positioning bolts are provided inside the mounting plate (10).

5. The exhaust fan with good ventilation effect according to claim 1, characterized in that: The lower surface of the support plate (1) is provided with air holes (11), and the number of the air holes (11) is multiple.

6. The exhaust fan with good ventilation effect according to claim 4, characterized in that: The lower surface of the support plate (1) is fixedly connected to a baffle frame (12), and the upper surface of the mounting plate (10) is provided with a limiting groove (13), and an air supply pipe (5) is inserted into the limiting groove (13).

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