CN215980054U

CN215980054U - Low-noise roof axial-flow fan

Info

Publication number: CN215980054U
Application number: CN202122362953.0U
Authority: CN
Inventors: 付雪锋
Original assignee: Jiangxi Xinshenyao Mechanical Equipment Co ltd
Current assignee: Jiangxi Xinshenyao Mechanical Equipment Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-08
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a low-noise roof axial flow fan which comprises an outer shell, wherein a sound insulation layer is arranged inside the outer shell, an inner shell is arranged inside the sound insulation layer, limiting cylinders are fixedly connected to two sides of the upper end of the inner middle part of the inner shell, springs are arranged outside the limiting cylinders, limiting rods are slidably connected to the inner peripheries of the adjacent ends of the limiting cylinders, the adjacent ends of the limiting rods are fixedly connected to the middle parts of two sides of a three-phase motor, a connecting seat is fixedly connected to the upper end of the outer shell, filter screens are fixedly connected to the front side and the rear side of the outer periphery of the upper end of a limiting cover, and connecting plates are fixedly connected to the left side and the right side of each filter screen. According to the utility model, the vibration and the sound insulation layer generated by the three-phase motor are absorbed by the spring, so that the noise generated by the vibration is reduced, and the detachable filter screen can prevent outdoor mosquitoes and dust from entering the room, so that the novel electric mosquito killer is worthy of great popularization.

Description

Low-noise roof axial-flow fan

Technical Field

The utility model relates to the field of axial flow fans, in particular to a low-noise roof axial flow fan.

Background

The axial flow fan has a very wide application, namely, the axial flow fan is an air flow in the same direction as the axis of the fan blade, such as an electric fan, and an air conditioner outer fan is an axial flow type running fan, so the axial flow fan is called as an axial flow type, because air flows in parallel to the fan axis, the axial flow fan is usually used in the occasions with higher flow requirement and lower pressure requirement, the axial flow fan is fixed in position and moves the air, the axial flow fan mainly comprises a fan impeller and a casing, the structure is simple, but the data requirement is very high.

Chinese patent document CN212774863U discloses a roof axial flow fan, which comprises a base, the inner chamber activity of base has cup jointed the backup pad, and the top surface fixedly connected with casing of backup pad, the inner chamber fixedly connected with motor of casing, and the fixed cover that has cup jointed the fan blade on the output shaft of motor, the top fixedly connected with closing cap of casing, the fixed slot has all been seted up to the inside of backup pad both sides. According to the utility model, the connection between the fan and the roof is changed into a clamping connection mode, the support plate is fixed in the base by utilizing the clamping connection effect of the clamping hole in the base and the clamping rod in the support plate, so that the fan is fixed on the roof, when maintenance is required, the fan is taken down from the roof for maintenance only by separating the clamping rod from the clamping hole, and the problems that the fan is fixed on the roof by bolts or welding, inconvenient to detach, large labor force is consumed when the fan is maintained, maintenance difficulty is large, and labor force is wasted are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a low-noise roof axial flow fan.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a low noise roof axial-flow fan, includes the shell body, the inside of shell body is provided with the puigging, the inside of puigging is provided with interior casing, the spacing section of thick bamboo of the equal fixedly connected with in middle part upper end both sides in the interior casing, the outside of spacing section of thick bamboo all is provided with the spring, the equal sliding connection has the gag lever post in the one end that spacing section of thick bamboo is close to mutually, the equal fixed connection in the both sides middle part of three phase motor of one end that the gag lever post is close to mutually, the upper end fixedly connected with connecting seat of shell body, the spacing cover of upper end fixedly connected with of connecting seat, the equal fixedly connected with filter screen in upper end periphery front and back sides of spacing cover, the equal fixedly connected with connecting plate in left and right sides of filter screen.

As a further description of the above technical solution:

the lower extreme fixedly connected with mount pad of shell body.

As a further description of the above technical solution:

the lower end inner opening of the inner shell is fixedly connected with a check valve.

As a further description of the above technical solution:

the spring is mutually kept away from one end and is fixedly connected with the two sides of the upper end of the middle part in the inner shell, and the spring is mutually close to one end and is fixedly connected with the middle parts of the two sides of the three-phase motor.

As a further description of the above technical solution:

the lower end driving end of the three-phase motor is fixedly connected with a transmission rod, and the lower end of the transmission rod is fixedly connected with a wind impeller.

As a further description of the above technical solution:

the upper end periphery of the limiting cover is uniformly distributed with supporting rods, and the upper ends of the supporting rods are fixedly connected to the periphery of the lower end of the top cover.

As a further description of the above technical solution:

and bolts are arranged in the middle openings at the upper end and the lower end of the connecting plate.

The utility model has the following beneficial effects:

1. according to the utility model, firstly, the axial flow fan is arranged at the opening of a roof through the mounting base, the two filter screens are arranged at the periphery of the limiting cover through the connecting plate and the bolts, the three-phase motor is started, the fan impeller is driven to rotate through the transmission rod, outdoor air is transmitted to the indoor space, when the three-phase motor works, vibration generated is absorbed by the spring, the limiting cylinder and the limiting rod limit the three-phase motor, the vibration generated by the three-phase motor is absorbed by the spring, so that the noise generated by the vibration is reduced, and the noise can be isolated through the sound insulation layer between the outer shell and the inner shell, so that the noise is extremely low when the axial flow fan works.

2. According to the utility model, the detachable filter screen can prevent outdoor mosquitoes and dust from entering the room, and the axial flow fan can be conveniently detached and cleaned, so that the working efficiency of the axial flow fan is not reduced due to the dust accumulated on the filter screen, and the axial flow fan is worthy of being widely popularized.

Drawings

Fig. 1 is a perspective view of a low noise roof axial flow fan according to the present invention;

fig. 2 is a front view of a low noise rooftop axial fan according to the present invention;

fig. 3 is a front view of an internal structure of a low noise roof axial flow fan according to the present invention.

Illustration of the drawings:

1. an outer housing; 2. a sound insulating layer; 3. an inner housing; 4. a mounting seat; 5. a check valve; 6. a limiting cylinder; 7. a limiting rod; 8. a spring; 9. a connecting seat; 10. a limiting cover; 11. a support bar; 12. a top cover; 13. Filtering with a screen; 14. a connecting plate; 15. a bolt; 16. a three-phase motor; 17. a transmission rod; 18. a wind impeller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a low-noise roof axial flow fan comprises an outer shell 1, wherein a sound insulation layer 2 is arranged inside the outer shell 1, an inner shell 3 is arranged inside the sound insulation layer 2, both sides of the upper end of the inner middle part of the inner shell 3 are fixedly connected with limiting cylinders 6, springs 8 are arranged outside the limiting cylinders 6, the inner peripheries of the ends, close to the limiting cylinders 6, of the limiting rods 7 are slidably connected, the ends, close to the limiting rods 7, of the limiting rods 7 are fixedly connected to the middle parts of both sides of a three-phase motor 16, the axial flow fan is installed at a roof opening through an installation seat 4, two filter screens 13 are installed on the outer periphery of a limiting cover 10 through a connecting plate 14 and bolts 15, the three-phase motor 16 is started, a fan impeller 18 is driven to rotate through a transmission rod 17, outdoor air is transmitted to the indoor space, when the three-phase motor 16 works, vibration generated is absorbed by the springs 8, and the limiting cylinders 6 and the limiting rods 7 limit the three-phase motor 16, absorb the vibrations that three-phase motor 16 produced through spring 8, make the noise that vibrations produced reduce, and through puigging 2 between shell body 1 and the interior casing 3, can be isolated with the noise, make axial fan at the during operation, the noise is minimum, the upper end fixedly connected with connecting seat 9 of shell body 1, the spacing cover 10 of upper end fixedly connected with of connecting seat 9, the equal fixedly connected with filter screen 13 in side around the upper end periphery of spacing cover 10, the equal fixedly connected with connecting plate 14 in left and right sides of filter screen 13, through detachable filter screen 13, it is indoor to have realized preventing outdoor mosquito and dust from getting into, and can conveniently dismantle the washing, make axial fan's work efficiency can not cause work efficiency to reduce because of accumulating up the dust on the filter screen 13.

Lower extreme fixedly connected with mount pad 4 of shell body 1, axial fan easy to assemble, the lower extreme internal orifice fixedly connected with check valve 5 of interior casing 3, prevent the air reflux, the equal fixed connection of one end that spring 8 kept away from mutually is middle part upper end both sides in interior casing 3, the equal fixed connection of one end that spring 8 is close to is in the both sides middle part of three phase motor 16 mutually, the position of fixed spring 8, three phase motor 16's lower extreme drive end fixedly connected with transfer line 17, the lower extreme fixedly connected with fan wheel 18 of transfer line 17, the upper end periphery evenly distributed of spacing cover 10 has bracing piece 11, the equal fixed connection in the lower extreme periphery of overhead guard 12 in upper end of bracing piece 11, it has the space to make between spacing cover 10 and the overhead guard 12, conveniently admit air, all be provided with bolt 15 in the upper and lower extreme middle part aperture of connecting plate 14, conveniently connect into whole with two filter screens 13.

The working principle is as follows: firstly, an axial flow fan is installed at the opening of a roof through an installation seat 4, two filter screens 13 are installed at the periphery of a limit cover 10 through a connecting plate 14 and a bolt 15, a three-phase motor 16 is started, a fan impeller 18 is driven to rotate through a transmission rod 17, outdoor air is transmitted to the indoor, when the three-phase motor 16 works, generated vibration is absorbed by a spring 8, a limit cylinder 6 and a limit rod 7 limit the three-phase motor 16, the vibration generated by the three-phase motor 16 is absorbed by the spring 8, the noise generated by the vibration is reduced, the noise can be isolated through a sound insulation layer 2 between an outer shell 1 and an inner shell 3, the noise is extremely low when the axial flow fan works, the noise is extremely low, through the detachable filter screens 13, the purpose that outdoor mosquitoes and dust can be prevented from entering the indoor and the axial flow fan can be conveniently detached and cleaned is achieved, and the working efficiency of the axial flow fan can not be reduced because of dust accumulated on the filter screens 13, is worthy of being widely popularized.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A low noise roof axial flow fan, includes shell body (1), its characterized in that: the utility model discloses a three-phase motor, including shell body (1), the inside of shell body (1) is provided with puigging (2), the inside of puigging (2) is provided with interior casing (3), the equal fixedly connected with spacing section of thick bamboo (6) in middle part upper end both sides in interior casing (3), the outside of spacing section of thick bamboo (6) all is provided with spring (8), equal sliding connection has gag lever post (7) in the one end that spacing section of thick bamboo (6) are close to mutually, the equal fixed connection in the both sides middle part of three-phase motor (16) of one end that gag lever post (7) are close to mutually, the upper end fixedly connected with connecting seat (9) of shell body (1), the upper end fixedly connected with spacing cover (10) of connecting seat (9), the equal fixedly connected with filter screen (13) of upper end periphery front and back side of spacing cover (10), the equal fixedly connected with connecting plate (14) of the side about filter screen (13).

2. A low noise roof axial flow fan according to claim 1, wherein: the lower end of the outer shell (1) is fixedly connected with a mounting seat (4).

3. A low noise roof axial flow fan according to claim 1, wherein: the lower end inner opening of the inner shell (3) is fixedly connected with a check valve (5).

4. A low noise roof axial flow fan according to claim 1, wherein: the equal fixed connection of one end that spring (8) kept away from mutually is middle part upper end both sides in interior casing (3), the equal fixed connection of one end that spring (8) are close to mutually is in the both sides middle part of three-phase motor (16).

5. A low noise roof axial flow fan according to claim 1, wherein: the lower end driving end of the three-phase motor (16) is fixedly connected with a transmission rod (17), and the lower end of the transmission rod (17) is fixedly connected with a wind impeller (18).

6. A low noise roof axial flow fan according to claim 1, wherein: the upper end periphery of the limiting cover (10) is uniformly distributed with supporting rods (11), and the upper ends of the supporting rods (11) are fixedly connected to the periphery of the lower end of the top cover (12).

7. A low noise roof axial flow fan according to claim 1, wherein: bolts (15) are arranged in the middle openings of the upper end and the lower end of the connecting plate (14).