CN213928841U

CN213928841U - Exhaust fan

Info

Publication number: CN213928841U
Application number: CN202023177851.3U
Authority: CN
Inventors: 何智勇
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Dragon Totem Technology Hefei Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-10
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an exhaust fan, which comprises a first shell, wherein the rear end of the first shell is fixedly connected with a vent pipe, the outer surface of the ventilation pipe is fixedly connected with a second motor, the front end of the second motor is provided with a gear, the tooth grooves of the gear are engaged and connected with a rack, the bottom end of the rack is fixedly connected with a baffle plate, the outer surface of the baffle plate is connected with a ventilation pipe in a sliding way, the front end of the first shell is provided with a ventilation net, the inner circle of the ventilation net is fixedly connected with a shaft plate, the bottom end of the shaft plate is rotatably connected with a first rotating shaft, the bottom end of the first rotating shaft is provided with a first motor, the outer surface of the first rotating shaft is fixedly connected with a shaft sleeve, the outer surface of the shaft sleeve is fixedly connected with fan blades, the upper end fixedly connected with water injection pipe of first casing, the lower extreme fixedly connected with drain pipe of first casing. The utility model discloses in, make the flabellum be convenient for wash through setting up water injection pipe and drain pipe, the practicality improves.

Description

Exhaust fan

Technical Field

The utility model relates to an air discharge fan technical field especially relates to an air discharge fan.

Background

The exhaust fan drives the fan blades to rotate by the motor to drive airflow, so that indoor air and outdoor air are exchanged. The exhaust fan is widely used in households, factories and public places, and aims to remove indoor dirty air and has the effects of adjusting temperature and humidity.

The air discharge fan is generally fixed at the height, and the air discharge fan works for a long time, and a large amount of dusts and cotton fibre are attached to the flabellum surface easily, and long-time not clear up, and the operating mass of air discharge fan reduces, and the air discharge fan is inconvenient to be cleared up because fixed height is higher, and ordinary air discharge fan is inconvenient to be sealed up to it, provides an air discharge fan from this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an exhaust fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an exhaust fan comprises a first shell, wherein the inner wall of the first shell is fixedly connected with a second shell, the rear end of the first shell is fixedly connected with a ventilation pipe, the outer surface of the ventilation pipe is fixedly connected with a second motor, the front end of the second motor is provided with a gear, a tooth groove of the gear is meshed and connected with a rack, the bottom end of the rack is fixedly connected with a baffle, the outer surface of the baffle is connected with the ventilation pipe in a sliding manner, the front end of the first shell is provided with a ventilation net, and the inner circle of the ventilation net is fixedly connected with a shaft plate;

the bottom of axostylus axostyle is rotated and is connected with first pivot, the bottom of first pivot is provided with first motor, the external fixed surface of first pivot is connected with the axle sleeve, the external fixed surface of axle sleeve is connected with the flabellum, the upper end fixedly connected with water injection pipe of first casing, the lower extreme fixedly connected with drain pipe of first casing.

As a further description of the above technical solution: and the outer surface of the water injection pipe is fixedly connected with a water pump.

As a further description of the above technical solution: the inside of second casing is provided with first motor, one terminal surface that the second casing is close to first motor is provided with the vent.

As a further description of the above technical solution: the bottom fixedly connected with fixed plate of first motor, the bottom fixedly connected with support bar of fixed plate, the rear end fixedly connected with second casing of support bar.

As a further description of the above technical solution: the outer fixed surface of baffle is connected with the draw runner, the surface sliding connection of draw runner has first casing, the quantity of draw runner is two.

As a further description of the above technical solution: the inner wall fixedly connected with second pivot of gear, the rear end of second pivot is provided with the second motor.

As a further description of the above technical solution: the rear ends of the fan blades are provided with supporting strips.

As a further description of the above technical solution: the excircle fixedly connected with protective cover of ventilation net, the first casing of bottom fixedly connected with of protective cover.

The utility model discloses following beneficial effect has:

1. the utility model discloses, the upper end fixedly connected with water injection pipe of first casing, the lower extreme fixedly connected with drain pipe of first casing, when a large amount of dust and cotton fibre are attached to the surface of flabellum, the shutoff vent moves down to the second motor drive baffle, and the water pump sprays the washing liquid to the flabellum surface through the water injection pipe, and first motor drive flabellum rotates, is showing the cleaning performance that improves the flabellum, and easy operation is convenient, and the practicality improves.

2. The utility model discloses, the second motor makes gear revolve through the second pivot, and gear and rack mesh the transmission, and then make the baffle reciprocate, make the air discharge fan have better waterproof and sealing performance through setting up the baffle, and the degree of automation of this air discharge fan is higher, is worth wideling popularize.

3. The utility model discloses, the second casing makes first motor fix in the assigned position through setting up the support bar, and the lower extreme of first casing makes sewage be convenient for discharge through setting up the drain pipe, and the practicality is showing and is improving.

Drawings

Fig. 1 is a schematic structural view of an exhaust fan according to the present invention;

fig. 2 is a partial front view of an exhaust fan according to the present invention;

fig. 3 is a partial side view of an exhaust fan according to the present invention;

fig. 4 is a partial schematic view of an exhaust fan according to the present invention;

fig. 5 is a partial side view of an exhaust fan according to the present invention.

Illustration of the drawings:

1. a first housing; 2. a water injection pipe; 3. a fan blade; 4. a water pump; 5. a vent; 6. a supporting strip; 7. a drain pipe; 8. a first rotating shaft; 9. a shaft sleeve; 10. a protective cover; 11. a ventilation net; 12. a shaft plate; 13. a vent pipe; 14. a second motor; 15. a second rotating shaft; 16. a gear; 17. a baffle plate; 18. a second housing; 19. a fixing plate; 20. a first motor; 21. a slide bar; 22. a rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: an exhaust fan comprises a first shell 1, wherein a second shell 18 is fixedly connected to the inner wall of the first shell 1, the second shell 18 is cylindrical and matched with a drain pipe 7 at the bottom end to facilitate sewage discharge, a first motor 20 is arranged inside the second shell 18, a vent 5 is arranged on one end face, close to the first motor 20, of the second shell 18, a vent pipe 13 is fixedly connected to the rear end of the first shell 1, the vent pipe 13 is used for air flow exchange, a second motor 14 is fixedly connected to the outer surface of the vent pipe 13, a gear 16 is arranged at the front end of the second motor 14, a second rotating shaft 15 is fixedly connected to the inner wall of the gear 16, a second motor 14 is arranged at the rear end of the second rotating shaft 15, the second motor 14 drives the second rotating shaft 15 to rotate, a rack 22 is meshed with a tooth groove of the gear 16, a baffle 17 is fixedly connected to the bottom end of the rack 22, and further the baffle 17 can move up and down, the outer surface sliding connection of baffle 17 has ventilation pipe 13, and the outer fixed surface of baffle 17 is connected with draw runner 21, and draw runner 21 has limit function, and the outer surface sliding connection of draw runner 21 has first casing 1, and the quantity of draw runner 21 is two.

The front end of first casing 1 is provided with ventilation net 11, and the interior circle fixedly connected with axletree plate 12 of ventilation net 11, the excircle fixedly connected with protective cover 10 of ventilation net 11, the first casing 1 of bottom fixedly connected with of protective cover 10, ventilation net 11 have certain safeguard function, and axletree plate 12 makes the steady rotation of first pivot 8.

The bottom of axostylus axostyle 12 is rotated and is connected with first pivot 8, the bottom of first pivot 8 is provided with first motor 20, the bottom fixedly connected with fixed plate 19 of first motor 20, the bottom fixedly connected with support bar 6 of fixed plate 19, the rear end fixedly connected with second casing 18 of support bar 6, the rear end of flabellum 3 is provided with support bar 6, the outer fixed surface of first pivot 8 is connected with axle sleeve 9, the outer fixed surface of axle sleeve 9 is connected with flabellum 3, make first motor 20 fix in the assigned position through setting up support bar 6, first motor 20 makes flabellum 3 rotate through first pivot 8, and then make the air current exchange.

The upper end fixedly connected with water injection pipe 2 of first casing 1, the external fixed surface of water injection pipe 2 is connected with water pump 4, the lower extreme fixedly connected with drain pipe 7 of first casing 1, and water pump 4 sprays the washing liquid to flabellum 3 surface through water injection pipe 2, and cooperation flabellum 3 rotates, is showing the cleaning performance who improves flabellum 3.

The working principle is as follows: the utility model discloses in, first motor 20 drives first pivot 8 and rotates, first pivot 8 drives axle sleeve 9 and rotates, make flabellum 3 rotate under the cooperation of axostylus axostyle 12 and fixed plate 19, flabellum 3 rotates inhales ventilation pipe 13 with external air current, when a large amount of dust of flabellum 3 surface gathering and cotton fibre, second motor 14 drives second pivot 15 and rotates, second pivot 15 drive gear 16 rotates, gear 16 and rack 22 mesh the transmission, and then make baffle 17 move down shutoff vent 5, water pump 4 makes the washing liquid act on flabellum 3 surface through the pressure boost, accompany flabellum 3 and rotate, show and improve the cleaning performance, abluent sewage is discharged through drain pipe 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. An exhaust fan comprising a first casing (1), characterized in that: the inner wall of the first shell (1) is fixedly connected with a second shell (18), the rear end of the first shell (1) is fixedly connected with a ventilation pipe (13), the outer surface of the ventilation pipe (13) is fixedly connected with a second motor (14), the front end of the second motor (14) is provided with a gear (16), tooth grooves of the gear (16) are meshed with a rack (22), the bottom end of the rack (22) is fixedly connected with a baffle (17), the outer surface of the baffle (17) is slidably connected with the ventilation pipe (13), the front end of the first shell (1) is provided with a ventilation net (11), and the inner circle of the ventilation net (11) is fixedly connected with a shaft plate (12);

the utility model discloses a fan, including axletree board (12), the bottom of axletree board (12) is rotated and is connected with first pivot (8), the bottom of first pivot (8) is provided with first motor (20), the external fixed surface of first pivot (8) is connected with axle sleeve (9), the external fixed surface of axle sleeve (9) is connected with flabellum (3), the upper end fixedly connected with water injection pipe (2) of first casing (1), the lower extreme fixedly connected with drain pipe (7) of first casing (1).

2. An exhaust fan in accordance with claim 1, wherein: the outer surface of the water injection pipe (2) is fixedly connected with a water pump (4).

3. An exhaust fan in accordance with claim 1, wherein: a first motor (20) is arranged inside the second shell (18), and a ventilation opening (5) is formed in one end face, close to the first motor (20), of the second shell (18).

4. An exhaust fan in accordance with claim 1, wherein: the bottom fixedly connected with fixed plate (19) of first motor (20), the bottom fixedly connected with support bar (6) of fixed plate (19), the rear end fixedly connected with second casing (18) of support bar (6).

5. An exhaust fan in accordance with claim 1, wherein: the outer fixed surface of baffle (17) is connected with draw runner (21), the surface sliding connection of draw runner (21) has first casing (1), the quantity of draw runner (21) is two.

6. An exhaust fan in accordance with claim 1, wherein: the inner wall fixedly connected with second pivot (15) of gear (16), the rear end of second pivot (15) is provided with second motor (14).

7. An exhaust fan in accordance with claim 1, wherein: the rear end of the fan blade (3) is provided with a supporting strip (6).

8. An exhaust fan in accordance with claim 1, wherein: the excircle fixedly connected with protective cover (10) of ventilation net (11), the first casing (1) of bottom fixedly connected with of protective cover (10).