CN221257266U

CN221257266U - Centrifugal fan

Info

Publication number: CN221257266U
Application number: CN202323242398.3U
Authority: CN
Inventors: 刘志
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-07-02
Anticipated expiration: 2033-11-23

Abstract

The utility model discloses a centrifugal fan, which comprises a box body, wherein fan blades are rotationally connected in the box body, a motor is fixedly arranged on the outer wall of the box body, a driving end of each fan blade penetrates through the side wall of the box body and is fixedly connected with the output end of the motor, an air outlet and an air inlet are formed in the box body, a grille is fixedly arranged at the end part of the air outlet through bolts, a mounting hole is formed in the side wall of the air inlet, a filter mechanism is arranged in the mounting hole and penetrates through the mounting hole to be arranged in the air inlet, fire-fighting smoke is extracted through the air inlet by driving the fan blades to work, filtered by the filter mechanism in the air inlet and enters the box body, filtered dust falls into a collecting tank under the influence of gravity and is collected by the collecting tank, the collecting tank arranged at the position of a strip-shaped hole is removed periodically, dust in the collecting tank is cleaned conveniently, and the filter mechanism is detached from the air inlet conveniently by detaching a bolt connected with the air inlet through a connecting plate of the filter mechanism.

Description

Centrifugal fan

Technical Field

The utility model relates to the technical field of fans, in particular to a centrifugal fan.

Background

The type of fan has centrifugal fan, axial fan, and the suitable small-size machine of selection is according to the arrangement condition of space size and exhaust hood, and exhaust fan is a machinery that can be used for removing peculiar smell, high temperature, the oily fume gas that produces in the kitchen processing food fast, and centrifugal fire control exhaust fan is often applied to fire control and discharges fume, kitchen fume and ventilation's occasion.

But current centrifugal fan when carrying out fire control and discharging fume, granule in the flue gas can strike the blade in the fan, influences the life of device, and can pile up a large amount of dust in the centrifugal fan, inconvenient clearance to its inside, to above-mentioned problem, has proposed a centrifugal fan.

Disclosure of utility model

The present utility model is directed to a centrifugal fan to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a centrifugal fan, includes the box, rotate in the box and be connected with the flabellum, box outer wall fixed mounting has the motor, the drive end of flabellum runs through box lateral wall and motor output fixed connection, be provided with gas outlet and air inlet on the box, the gas outlet tip has the grid through bolt fixed mounting, the air inlet lateral wall is provided with the mounting hole, be provided with filter mechanism in the mounting hole, filter mechanism runs through the mounting hole and puts in the air inlet, and filter mechanism's tip and air inlet inner wall laminating, filter mechanism passes through bolt and air inlet lateral wall fixed connection, the air inlet bottom is provided with the bar hole, the air inlet is provided with the collecting vat below the bar hole, the collecting vat passes through bolt and air inlet bottom fixed connection.

As a further scheme of the utility model: the side wall of the box body is filled with sound insulation materials, the motor outer cover is provided with a protective cover, and a cover plate is fixedly arranged at an overhaul hole of the side wall of the protective cover through bolts.

As still further aspects of the utility model: the collecting tank inner wall fixedly connected with round hang plate, the collecting tank bottom plate is detachable.

As still further aspects of the utility model: the filter mechanism comprises a connecting plate and a connecting frame, wherein one side of the connecting frame is fixedly connected with the side wall of the connecting plate, a filter screen is fixedly installed in the connecting frame, clamping grooves are formed in the upper end and the lower end of the connecting frame, which are close to one side of the box body, of the connecting frame, clamping strips are clamped in the clamping grooves and are in sliding connection with the clamping grooves, and the clamping strips are fixedly connected with the inner wall of the air inlet.

As still further aspects of the utility model: the handle is fixedly connected to the outer wall of the connecting plate.

As still further aspects of the utility model: the air outlet end of the air outlet is inclined downwards, grid plates of the grid are inclined in parallel, and air passages are formed between the grid plates.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the fan blades are driven to work by the motor, fire-fighting smoke is extracted through the air inlet and filtered by the filter mechanism in the air inlet to enter the box body, the filtered dust falls into the collecting tank under the influence of gravity and is collected by the collecting tank, the impact of particles in the smoke on the fan blades is reduced, the service life of the device is prolonged, the collecting tank arranged at the strip-shaped holes is periodically disassembled, dust in the collecting tank is conveniently cleaned, and the filter mechanism is conveniently disassembled from the air inlet by disassembling the bolts connected with the air inlet by the connecting plate of the filter mechanism, so that the filter screen is conveniently cleaned.

2. According to the utility model, the air outlet is inclined downwards, and the grille is arranged at the end part of the air outlet through the bolts, so that rainwater is reduced from entering the box body.

Drawings

Fig. 1 is a schematic structural view of a centrifugal fan.

Fig. 2 is a partial cross-sectional view of a centrifugal fan.

Fig. 3 is a cross-sectional view of a grille in a centrifugal fan.

Fig. 4 is a schematic structural view of a filter mechanism in a centrifugal fan.

Fig. 5 is a partial cross-sectional view of an air intake in a centrifugal fan.

In the figure: 1. a case; 2. a protective cover; 3. an air outlet; 4. an air inlet; 5. a grille; 6. a filtering mechanism; 7. a mounting hole; 8. a motor; 9. a fan blade; 10. a connection frame; 11. a filter screen; 12. a connecting plate; 13. a handle; 14. a clamping groove; 15. clamping strips; 16. a bar-shaped hole; 17. a collection tank; 18. and (3) an inclined plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, in the embodiment of the utility model, a centrifugal fan comprises a box body 1, a fan blade 9 is rotationally connected to the box body 1, a motor 8 is fixedly installed on the outer wall of the box body 1, a driving end of the fan blade 9 penetrates through the side wall of the box body 1 and is fixedly connected with the output end of the motor 8, an air outlet 3 and an air inlet 4 are arranged on the box body 1, a grid 5 is fixedly installed at the end part of the air outlet 3 through bolts, a mounting hole 7 is arranged on the side wall of the air inlet 4, a filtering mechanism 6 is arranged in the mounting hole 7 in a penetrating manner, the end part of the filtering mechanism 6 is attached to the inner wall of the air inlet 4, the filtering mechanism 6 is fixedly connected with the side wall of the air inlet 4 through bolts, a strip-shaped hole 16 is arranged at the bottom of the air inlet 4, a collecting groove 17 is arranged below the strip-shaped hole 16, and the collecting groove 17 is fixedly connected with the bottom of the air inlet 4 through bolts.

When the fire-fighting smoke-discharging device is used, the motor 8 drives the fan blades 9 to work, fire-fighting smoke is discharged, smoke enters from the air inlet 4, is filtered by the filtering mechanism 6 in the air inlet 4 and enters the box body 1, filtered dust falls into the collecting tank 17 under the influence of gravity and is collected by the collecting tank 17, extracted smoke is discharged through the air outlet 3, fire-fighting smoke discharging is realized, the grid 5 is arranged at the air outlet 3, and external rainwater entering the device is reduced.

The side wall of the box body 1 is filled with sound insulation materials, the motor 8 is externally covered with the protective cover 2, a cover plate is fixedly arranged at the overhaul port of the side wall of the protective cover 2 through bolts, the protective cover 2 is arranged outside the motor 8, the sound insulation materials filled in the box body 1 are matched, and noise generated by work is reduced.

The collecting tank 17 inner wall fixedly connected with round hang plate 18, the collecting tank 17 bottom plate is detachable, and the dust that the setting of hang plate 18 was collected in the reduction collecting tank 17 is carried on the filtering mechanism 6 by the air current, because the collecting tank 17 bottom plate can be dismantled, conveniently clears up the dust of collecting in the collecting tank 17.

The filter mechanism 6 comprises a connecting plate 12 and a connecting frame 10, wherein one side of the connecting frame 10 is fixedly connected with the side wall of the connecting plate 12, a filter screen 11 is fixedly installed in the connecting frame 10, clamping grooves 14 are formed in the upper end and the lower end of the connecting frame 10, which are close to one side of the box body 1, clamping strips 15 are clamped in the clamping grooves 14, the clamping strips 15 are slidably connected with the clamping grooves 14, the clamping strips 15 are fixedly connected with the inner wall of the air inlet 4, when the filter mechanism is installed, the connecting frame 10 of the filter mechanism 6 is clamped with the clamping strips 15 fixedly connected through the clamping grooves 14, the connecting plate 12 is pushed, one end of the connecting frame 10, which is far away from the connecting plate 12, is tightly attached to the inner wall of the air inlet 4, the connecting plate 12 is fixedly connected with the side wall of the air inlet 4 through bolts, and the filter screen 11 filters extracted smoke dust.

The handle 13 is fixedly connected to the outer wall of the connecting plate 12, and the handle 13 is convenient to assemble and disassemble the filtering mechanism 6.

The air outlet end of the air outlet 3 is inclined downwards, grid plates of the grid 5 are inclined in parallel, an air passage is formed between the grid plates, the end part of the air outlet 3 is arranged to be inclined downwards, the grid 5 is arranged at the air outlet 3, and rainwater is reduced from entering the device.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a centrifugal fan, includes box (1), its characterized in that: the box body (1) is rotationally connected with a fan blade (9), the outer wall of the box body (1) is fixedly provided with a motor (8), the driving end of the fan blade (9) penetrates through the side wall of the box body (1) and is fixedly connected with the output end of the motor (8), the box body (1) is provided with an air outlet (3) and an air inlet (4), the end part of the air outlet (3) is fixedly provided with a grid (5) through a bolt, the side wall of the air inlet (4) is provided with a mounting hole (7), the inside of the mounting hole (7) is provided with a filtering mechanism (6), the filter mechanism (6) runs through the mounting hole (7) and is built-in the air inlet (4), and the tip of filter mechanism (6) is laminated with air inlet (4) inner wall, and filter mechanism (6) are through bolt and air inlet (4) lateral wall fixed connection, and air inlet (4) bottom is provided with bar hole (16), and air inlet (4) are provided with collecting vat (17) in bar hole (16) below, and collecting vat (17) pass through bolt and air inlet (4) bottom fixed connection.

2. A centrifugal fan according to claim 1, wherein: the side wall of the box body (1) is filled with sound insulation materials, a motor (8) is covered with a protective cover (2), and a cover plate is fixedly arranged at an overhaul hole of the side wall of the protective cover (2) through bolts.

3. A centrifugal fan according to claim 1, wherein: the inner wall of the collecting tank (17) is fixedly connected with a circle of inclined plates (18), and the bottom plate of the collecting tank (17) is detachable.

4. A centrifugal fan according to claim 1, wherein: the filter mechanism (6) comprises a connecting plate (12) and a connecting frame (10), wherein one side of the connecting frame (10) is fixedly connected with the side wall of the connecting plate (12), a filter screen (11) is fixedly installed in the connecting frame (10), clamping grooves (14) are formed in the upper end and the lower end of the connecting frame (10) close to one side of the box body (1), clamping strips (15) are clamped in the clamping grooves (14), the clamping strips (15) are slidably connected with the clamping grooves (14), and the clamping strips (15) are fixedly connected with the inner wall of the air inlet (4).

5. A centrifugal fan according to claim 4, wherein: the outer wall of the connecting plate (12) is fixedly connected with a handle (13).

6. A centrifugal fan according to claim 1, wherein: the air outlet end of the air outlet (3) is inclined downwards, grid plates of the grid (5) are inclined in parallel, and air passages are formed between the grid plates.