CN219605651U - Volute of centrifugal cabinet fan - Google Patents

Abstract

The utility model relates to the technical field of fan volutes, in particular to a volute of a centrifugal cabinet fan, which comprises a first casing, wherein air outlets are formed between the inner sides of the rear ends of the first casing and the front ends of the second casing and between the top ends of bottom strips and the inner sides of the bottom strips.

Description

Volute of centrifugal cabinet fan

Technical Field

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

Background

The cabinet type centrifugal fan is widely applied to occasions of fire-fighting smoke discharging, kitchen smoke discharging and ventilation, can supply air and exhaust air, is a main product of fire-fighting smoke discharging, ventilation and ventilation of the prior high-rise building, and comprises a fan case and a motor, wherein a volute structure for installing a centrifugal fan main body is arranged in the fan case.

The existing volute of the centrifugal cabinet fan needs to be welded in a combined mode and limited in threaded assembly during installation, the whole centrifugal fan needs to be disassembled and maintained during maintenance, and the transmission efficiency of the volute cavity structure which is made of the common iron plate and tends to be expanded outwards to wind pressure is insufficient.

Disclosure of Invention

The utility model aims to provide a volute of a centrifugal cabinet fan, which aims to solve the problems that an iron plate is required to be welded in a combined way and a thread is required to be assembled and limited in a threaded way when the volute of the centrifugal cabinet fan is installed, the whole centrifugal fan is required to be disassembled and maintained in maintenance, and the transmission efficiency of wind pressure is insufficient due to the adoption of a volute cavity structure which is made of a common iron plate and tends to be expanded outwards.

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

the utility model provides a spiral case of centrifugal cabinet fan, includes first sleeve shell, first sleeve shell rear end is provided with the second sleeve shell, all be provided with the spiral case between first sleeve shell rear end and the second sleeve shell front end inboard, all fixedly provided with the card cover piece in spiral case front end and the rear end outside, the air inlet has been seted up between inside first sleeve shell, second sleeve shell and the spiral case, second sleeve shell rear end is provided with the folded plate, the location chamber hole has all been seted up to inside first sleeve shell and the second sleeve shell, spiral case bottom right-hand member is fixed to be provided with the end strip, spiral case bottom terminal surface is fixed to be provided with the breast board, spiral case top layer right-hand member is fixed to be provided with the top slat, air outlet has been seted up between first sleeve shell rear end, second front end between the inboard and bottom strip top, first sleeve shell right-hand member and second sleeve shell right-hand member all are provided with the angle steel, the angle steel left end is fixed to be provided with the flat cover plate, be provided with the perpendicular to the end between angle steel, the bottom inboard is fixed to be provided with perpendicular to the lid inboard, perpendicular to the lid inboard and perpendicular to the inside rubber cushion, perpendicular to the inside frame rubber cushion, the interior frame and the inside perpendicular to the interior frame rubber cushion, the interior is provided with perpendicular to the frame, perpendicular to the inside the interior frame and the screw.

Preferably, square grooves are formed in the first casing and the second casing, and the outer sides of the clamping sleeve pieces are in embedded contact with the inner parts of the square grooves.

Preferably, the inside internal thread hole that has all seted up of folded plate and the inside of second cover shell, both ends, top slat front and back both ends are perpendicular setting with the contact end face of first cover shell, second cover shell around the bottom slat.

Preferably, a round groove is formed in the baffle, and the front end face and the rear end face of the baffle are vertically arranged with the contact end faces of the first casing and the second casing.

Preferably, the air guide cavity formed by the front end face and the rear end face of the volute and the embedded end faces of the first casing and the second casing is arranged in a diffusion type circular cavity.

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

according to the utility model, through the first casing, the second casing, the volute, the clamping sleeve piece, the air inlet, the folded plate, the positioning cavity hole, the bottom slat, the baffle plate, the top slat, the air outlet, the angle steel, the flat cover plate, the vertical cover plate, the rubber cushion layer and the locking stud, the utility model provides a volute assembly structure for conveniently assembling the centrifugal cabinet fan, the assembly is simpler and more convenient by adopting a modularized design, the air guide cavity formed by optimizing the volute is in a geometric shape and an internal structure of a diffusion-shaped circular cavity, the air flow can be better guided, the pressure of an impeller is increased by improving the wind pressure output design, the wind pressure output is improved, the efficiency of the centrifugal fan is improved, the volute is manufactured by adopting the galvanized plate, the corrosion resistance and the oxidation resistance of the volute can be improved, and the service life of a product is prolonged, and the problems that the whole centrifugal fan needs to be disassembled and maintained by adopting an iron plate of the volute cavity structure which is made of a common iron plate and tends to be expanded outwards and is insufficient in the wind pressure transmission efficiency of the air pressure of the volute are solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present utility model;

FIG. 4 is a schematic rear view of the present utility model;

FIG. 5 is a schematic view of the angle iron mounting structure of the present utility model;

fig. 6 is a schematic view of the vertical cover plate mounting structure of the present utility model.

In the figure: 1-first shell, 2-second shell, 3-spiral case, 4-card cover piece, 5-air inlet, 6-folded plate, 7-location cavity hole, 8-bottom slat, 9-breast board, 10-top slat, 11-gas outlet, 12-angle steel, 13-flat apron, 14-vertical apron, 15-rubber cushion layer, 16-locking double-screw bolt.

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. 1-6, the present utility model provides a technical solution:

the volute of the centrifugal cabinet fan comprises a first casing 1, a second casing 2 is arranged at the rear end of the first casing 1, a volute 3 is arranged between the inner sides of the rear end of the first casing 1 and the front end of the second casing 2, a clamping sleeve piece 4 is fixedly arranged at the front end and the outer side of the rear end of the volute 3, an air inlet 5 is formed among the first casing 1, the second casing 2 and the volute 3, a folded plate 6 is arranged at the rear end of the second casing 2, positioning cavity holes 7 are formed in the first casing 1 and the second casing 2, a bottom slat 8 is fixedly arranged at the right end of the bottom layer of the volute 3, a baffle 9 is fixedly arranged at the end face of the bottom layer of the volute 3, a top slat 10 is fixedly arranged at the right end of the top layer of the volute 3, the novel anti-theft lock comprises a first casing 1, an air outlet 11, an angle steel 12, a flat cover plate 13, a vertical cover plate 14, a rubber cushion 15, a first casing 1 outer frame, a second casing 2 outer frame, a flat cover plate 13, a vertical cover plate 14 and a rubber cushion 15, wherein the angle steel 12 is fixedly arranged at the left end of the angle steel 12, the vertical cover plate 14 is fixedly arranged between the top end and the bottom end of the angle steel 12, the rubber cushion 15 is fixedly arranged at the inner side of the flat cover plate 13 and the inner side of the vertical cover plate 14, and the locking stud 16 is arranged at the inner side of the first casing 1 outer frame, the inner side of the second casing 2 outer frame, the inner side of the flat cover plate 13, the inner side of the vertical cover plate 14 and the inner side of the rubber cushion 15.

As shown in fig. 2, 3, 4 and 6, through the arrangement of a first casing 1, a second casing 2, a volute 3, a clamping sleeve piece 4, an air inlet 5, a folded plate 6, a positioning cavity hole 7, a bottom strip plate 8, a baffle plate 9, a top strip plate 10, an air outlet 11, angle steel 12, a flat cover plate 13, a vertical cover plate 14, a rubber cushion layer 15 and a locking stud 16, the utility model provides an assembly structure of the volute 3 for conveniently assembling a centrifugal cabinet fan, which is more convenient and convenient to install by adopting a modularized design, wherein square grooves are formed in the first casing 1 and the second casing 2, and the outer side of the clamping sleeve piece 4 is in embedded contact with the inside of the square grooves; the inside of the folded plate 6 and the inside of the second casing 2 are provided with internal threaded holes, and the front and back ends of the bottom strip plate 8 and the front and back ends of the top strip plate 10 are vertically arranged with the contact end surfaces of the first casing 1 and the second casing 2; the inside of the baffle plate 9 is provided with a round groove, and the front end surface and the rear end surface of the baffle plate 9 are vertically arranged with the contact end surfaces of the first casing 1 and the second casing 2; the front and rear end surfaces of the volute 3 and the air guide cavity formed by the embedded end surfaces of the first casing 1 and the second casing 2 are arranged in a diffusion type circular cavity.

The working flow is as follows: the utility model provides an assembly structure of a volute 3 for conveniently assembling a centrifugal cabinet fan, wherein a first casing 1, a second casing 2 and the volute 3 are made of galvanized plates, the volute 3, a clamping sleeve piece 4, a bottom strip plate 8, a baffle plate 9 and a top strip plate 10 are of fixed cavity shell structures, the clamping sleeve piece 4 arranged at the front end side and the rear end side of the volute 2 is used for carrying out embedded press mounting limit on the first casing 1 and the second casing 2, angle steel 12, a flat cover plate 13 and a vertical cover plate 14 are fixed on a fixed assembly frame structure of the centrifugal cabinet fan, the flat cover plate 13 and the vertical cover plate 14 are fixed on the fixed assembly frame structure of the volute 3, a rubber cushion layer 15 arranged inside the flat cover plate 13 and the vertical cover plate 14 is used for carrying out fitting placement on the first casing 1 and the second casing 2, the first casing 1 and the second casing 2 are locked and limited and fixed through locking studs 16, and the assembly structure of the volute 3 is formed into a volute 3 assembly structure of the fan for convenient disassembly and maintenance.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a spiral case of centrifugal cabinet fan, includes first cover shell (1), its characterized in that: the rear end of the first casing (1) is provided with a second casing (2), a volute (3) is arranged between the rear end of the first casing (1) and the inner side of the front end of the second casing (2), a clamping sleeve piece (4) is fixedly arranged at the front end of the volute (3) and the outer side of the rear end, an air inlet (5) is formed among the interior of the first casing (1), the interior of the second casing (2) and the interior of the volute (3), a folded plate (6) is arranged at the rear end of the second casing (2), positioning cavity holes (7) are formed in the interior of the first casing (1) and the interior of the second casing (2), a bottom slat (8) is fixedly arranged at the right end of the bottom layer of the volute (3), the end face of the bottom layer of the volute (3) is fixedly provided with a baffle plate (9), the right end of the top layer of the volute (3) is fixedly provided with a top strip plate (10), an air outlet (11) is formed between the inner sides of the rear end of the first casing (1) and the front end of the second casing (2) and between the top end of the bottom strip plate (8) and the inner side of the bottom end of the top strip plate (10), the right end of the first casing (1) and the right end of the second casing (2) are respectively provided with an angle steel (12), the left end of the angle steel (12) is fixedly provided with a flat cover plate (13), a vertical cover plate (14) is fixedly arranged between the top end and the inner side of the bottom end of the angle steel (12), the inner side of the flat cover plate (13) and the inner side of the vertical cover plate (14) are fixedly provided with rubber cushion layers (15), and the inner side of the outer frame of the first casing (1), the inner side of the outer frame of the second casing (2), the inner side of the flat cover plate (13), the inner side of the vertical cover plate (14) and the inner side of the rubber cushion layers (15) are in threaded arrangement with locking studs (16).

2. The volute of a centrifugal cabinet fan according to claim 1, wherein: square grooves are formed in the first casing (1) and the second casing (2), and the outer sides of the clamping sleeve pieces (4) are in embedded contact with the inner sides of the square grooves.

3. The volute of a centrifugal cabinet fan according to claim 1, wherein: the inside internal thread hole that has all seted up of folded plate (6) and second cover shell (2) inside, both ends, roof slat (10) front and back both ends and first cover shell (1), the contact end face of second cover shell (2) are perpendicular setting around bottom slat (8).

4. The volute of a centrifugal cabinet fan according to claim 1, wherein: round grooves are formed in the baffle plates (9), and the front end face and the rear end face of the baffle plates (9) are vertically arranged with the contact end faces of the first casing (1) and the second casing (2).

5. The volute of a centrifugal cabinet fan according to claim 1, wherein: the air guide inner cavity formed by the front end face and the rear end face of the volute (3) and the embedded end faces of the first casing (1) and the second casing (2) is arranged in a diffusion type circular cavity.