CN218467870U

CN218467870U - Direct current axial fan with anti-return function

Info

Publication number: CN218467870U
Application number: CN202221642603.8U
Authority: CN
Inventors: 谈玉龙; 洪光明
Original assignee: Jiangsu Shenghang Electronic Technology Co ltd
Current assignee: Jiangsu Shenghang Electronic Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-02-10
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a direct current axial fan with anti-return function, include the aircraft bonnet and install the fan in the aircraft bonnet inner chamber, the opening of aircraft bonnet inner chamber is located its relative both sides wall, just the opening of aircraft bonnet inner chamber both sides is air intake and air outlet respectively, wherein the aircraft bonnet is located air outlet place lateral wall welded and has been connected the mounting bracket, the welding of mounting bracket roof has servo motor, the inboard rotation of mounting bracket is connected with vertical transmission shaft, servo motor's output shaft and transmission shaft coaxial coupling, fixed cover is equipped with the upset cover on the transmission shaft, the welding has the sealing door on the upset cover outer wall, one of them lateral wall of sealing door is fixed to be bonded and is the cushion that is the square. This direct current axial fan with anti-return function drives the transmission shaft operation through making servo motor work, seals the air outlet of aircraft bonnet to prevent that external air from getting into the aircraft bonnet from the air outlet in, realize the anti-return, alleviateed the influence to the wind channel.

Description

Direct current axial fan with anti-return function

Technical Field

The utility model belongs to the technical direction of direct current axial fan, concretely relates to direct current axial fan with anti-return function.

Background

The axial flow fan has a wide application range, such as an electric fan, and an air conditioner external unit fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial fans are typically used in applications where flow requirements are high and pressure requirements are low.

The existing axial flow fan cannot seal the air outlet of the existing axial flow fan when not in use, so that the external air may enter the fan through the air outlet and be discharged from the air inlet, and the air duct is influenced. This phenomenon becomes an urgent problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to current device a direct current axial fan with anti-return function to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a direct current axial fan with anti-return function, includes the aircraft bonnet and installs the fan in the aircraft bonnet inner chamber, the opening of aircraft bonnet inner chamber is located its relative both sides wall, just the opening of aircraft bonnet inner chamber both sides is air intake and air outlet respectively, wherein the aircraft bonnet is located air outlet place lateral wall welded joint has the mounting bracket, the welding of mounting bracket roof has servo motor, the inboard rotation of mounting bracket is connected with vertical transmission shaft, servo motor's output shaft and transmission shaft coaxial coupling, fixed cover is equipped with the upset cover on the transmission shaft, the welding has the closed door on the upset cover outer wall, the fixed bonding of one of them lateral wall of closed door has the cushion that is the square.

Preferably, the welding of the diapire of aircraft bonnet has the base that is the shape of falling U, by the diapire of base both sides all is formed with the inner chamber to its inside, elevator motor has all been welded to the both sides of basement roof.

Preferably, the centers of the top walls of the two inner cavities of the base are respectively and rotatably connected with a threaded rod, and the two threaded rods are respectively and coaxially connected with the output shafts of the two lifting motors; the threaded rod can be driven to rotate by driving the lifting motor to work.

Preferably, fixing frames are welded in the two inner cavities of the base, the two threaded rods are respectively positioned on the inner sides of the two fixing frames, and two ends of each threaded rod are respectively rotatably connected with the top wall of the inner cavity of the base and the fixing frames; the threaded rod is guaranteed to run stably.

Preferably, the two threaded rods are respectively sleeved with a lifting rod in a threaded manner, vertical rods are welded on two sides of the bottom wall of each lifting rod, and the two vertical rods on the bottom wall of each lifting rod slide through the fixing frame along the vertical direction; so that the two vertical rods can be lifted and lowered stably.

Preferably, a platform plate is welded below the two vertical rods of the bottom wall of the lifting rod, and universal wheels are mounted on two sides of the bottom wall of the platform plate; therefore, four universal wheels are arranged in the two inner cavities of the base to ensure that the hood and the fan can move conveniently.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model the utility model is a novel model, which is composed of a main body,

(1) The servo motor works to drive the transmission shaft to rotate, so that the air outlet of the hood is sealed, external air is prevented from entering the hood from the air outlet, backflow is prevented, and the influence on an air duct is reduced;

(2) The threaded rod connected with the lifting motor is driven to run by the working of the two lifting motors, the lifting rod and the vertical rod are made to sink, the universal wheels below the two platform plates are driven to be in contact with the ground, the direct-current axial-flow fan with the backflow prevention function can be moved along the rotation of the four universal wheels, and the trouble of manual carrying is avoided when the position of the direct-current axial-flow fan needs to be moved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the sealing door of the present invention and its surrounding structure;

fig. 3 is a front view of the present invention;

fig. 4 isbase:Sub>A cross-sectional view of the base of fig. 1 taken alongbase:Sub>A-base:Sub>A of the present invention.

In the figure: 1. a hood; 2. a fan; 3. a mounting frame; 4. a servo motor; 5. turning over the sleeve; 6. a closing door; 7. a soft cushion; 8. a base; 9. a lifting motor; 10. a fixed mount; 11. a threaded rod; 12. a lifting rod; 13. a vertical rod; 14. a platform plate; 15. a universal wheel.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, a direct current axial flow fan with backflow prevention function includes a housing 1 and a fan 2 installed in an inner cavity of the housing 1, openings of the inner cavity of the housing 1 are located on two opposite side walls of the housing, and the openings on two sides of the inner cavity of the housing 1 are an air inlet and an air outlet respectively, wherein an installation frame 3 is welded on one side wall of the housing 1 where the air outlet is located, a servo motor 4 is welded on a top wall of the installation frame 3, a vertical transmission shaft is rotatably connected to an inner side of the installation frame 3, an output shaft of the servo motor 4 is coaxially connected with the transmission shaft, a turnover sleeve 5 is fixedly sleeved on the transmission shaft, a sealing door 6 is welded on an outer wall of the turnover sleeve 5, a cushion 7 in a shape of a square is fixedly bonded on one side wall of the sealing door 6, and when the sealing door 6 is bonded on one side wall of the air outlet of the housing 1, the cushion 7 extends into the inner cavity of the housing 1 and is bonded with the inner wall of the housing 1, so as to achieve a good sealing effect.

Referring to fig. 1 and 4, a base 8 in an inverted U shape is welded to a bottom wall of a hood 1, inner cavities are formed inside the bottom walls of two sides of the base 8, lifting motors 9 are welded to two sides of a top wall of the base 8, threaded rods 11 are rotatably connected to centers of two top walls of the two inner cavities of the base 8, the two threaded rods 11 are coaxially connected to output shafts of the two lifting motors 9, so that the lifting motors 9 are driven to rotate, fixing frames 10 are welded to the two inner cavities of the base 8, the two threaded rods 11 are respectively located inside the two fixing frames 10, two ends of each threaded rod 11 are rotatably connected to the top wall of the inner cavity of the hood 8 and the fixing frames 10, the rotary connection between the two threaded rods is realized through bearings, the threaded rods 11 are guaranteed to stably rotate, lifting rods 12 are respectively sleeved with the threaded sleeves on the two threaded rods 11, vertical rods 13 are welded to two sides of the bottom wall of each lifting rod 12, the two vertical rods 13 of the bottom wall of each lifting rod 12 slide through the fixing frames 10 in a vertical direction, so that the two vertical rods 13 can stably lift, platform plates 14 are welded to two bottom walls of the hood 1, and four universal wheels 15 are mounted on two sides of the bottom wall of the hood 1, and the universal wheels 15 for facilitating the universal wheels for moving the universal wheels and the universal wheels 15 mounted on the bottom wall of the base 1.

The working principle is as follows: when the air inlet and the air outlet are both in an open state, the fan 2 is electrified, and the fan works to suck outside air from the air inlet and discharge the air from the air outlet;

when the fan 2 is not used, the servo motor 4 is driven to work to drive the transmission shaft, the turnover sleeve 5 and the closing door 6 to operate, so that the closing door 6 closes the air outlet of the hood 1, and the backflow preventing effect can be achieved;

when the direct current axial flow fan with the backflow prevention function needs to be moved, the two lifting motors 9 are driven to drive the threaded rods 11 connected with the lifting motors to rotate, the two lifting rods 12 drive the vertical rods 13 and the platform plates 14 below the lifting rods to sink, the universal wheels 15 below the two platform plates 14 are finally moved to the outside and are in contact with the ground, the base 8 is separated from the ground (in a state shown in fig. 3), and then the hood 1 is pushed so that the hood can move along with the rolling of the four universal wheels 15.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and 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.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalent substitutions may be made to some of the features of the embodiments without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a direct current axial fan with anti-return function, includes aircraft bonnet (1) and installs fan (2) in aircraft bonnet (1) inner chamber, its characterized in that: the opening of aircraft bonnet (1) inner chamber is located its relative both sides wall, just the opening of aircraft bonnet (1) inner chamber both sides is air intake and air outlet respectively, wherein aircraft bonnet (1) are located air outlet place lateral wall welded mounting bracket (3), mounting bracket (3) roof welding has servo motor (4), mounting bracket (3) inboard is rotated and is connected with vertical transmission shaft, the output shaft and the transmission shaft coaxial coupling of servo motor (4), fixed cover is equipped with turnover cover (5) on the transmission shaft, the welding has closed door (6) on turnover cover (5) outer wall, the fixed bonding of one of them lateral wall of closed door (6) has cushion (7) that are the mouth font.

2. The dc axial flow fan with backflow prevention function according to claim 1, wherein: the welding of the diapire of aircraft bonnet (1) has base (8) that are the shape of falling U, by the diapire of base (8) both sides all is formed with the inner chamber to its inside, elevator motor (9) have all been welded to the both sides of base (8) roof.

3. The dc axial flow fan with backflow prevention function according to claim 2, wherein: the center of the top wall of the two inner cavities of the base (8) is rotatably connected with a threaded rod (11), and the two threaded rods (11) are respectively and coaxially connected with output shafts of the two lifting motors (9).

4. The dc axial flow fan with backflow prevention function according to claim 3, wherein: all welded in two inner chambers of base (8) has mount (10), two threaded rod (11) are located two mount (10) inboards respectively, just threaded rod (11) both ends are connected with base (8) inner chamber roof and mount (10) rotation respectively.

5. The dc axial flow fan with backflow prevention function according to claim 4, wherein: two equal thread bush is equipped with lifter (12), every on threaded rod (11) the montant (13) have all been welded to the both sides of lifter (12) diapire, just two montants (13) of lifter (12) diapire all slide along vertical direction and pass mount (10).

6. The dc axial flow fan with backflow prevention function according to claim 5, wherein: the welding of two montant (13) below of lifter (12) diapire has landing slab (14), universal wheel (15) are all installed to the both sides of landing slab (14) diapire.