CN201184321Y

CN201184321Y - Spiral casing structure of blower fan

Info

Publication number: CN201184321Y
Application number: CNU2008200460236U
Authority: CN
Inventors: 黄建军; 李海健; 黄健洪
Original assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd
Current assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd; Foshan City Nanhai Jiuzhou Popula Fan Co Ltd
Priority date: 2008-04-07
Filing date: 2008-04-07
Publication date: 2009-01-21
Anticipated expiration: 2018-04-07

Abstract

The utility model relates to a volute structure of a fan, which is characterized in that the volute structure comprises a volute plate and two volute cover plates, wherein the volute plate is made from long plate material by respectively bending the two side edges inwards along the length direction to form a buckling groove and then roll-bending; and the peripheries of the two volute cover plates are respectively embedded into the corresponding buckling grooves, and are fixed on two end faces of the volute plate by stamping. The volute plate structure is made from the long plate material by respectively bending the two side edges inwards along the length direction to form a buckling groove and then roll-bending, and the two volute cover plates of the volute are embedded into corresponding buckling grooves at the peripheries and are hermetically fixed on the two end faces of the volute plate by a stamping and fixing process. The volute structure suits processing of steel plates with various thicknesses, and the processed volute has the advantages good air tightness, simple manufacture and good appearance and is beneficial to energy saving, the reduction of energy consumption and the alleviation of environment pollution.

Description

A kind of worm frame of blower fan

Technical field

The utility model relates to a kind of worm frame of blower fan.

Background technique

The effect of volute of blower is gas to be collected and caused this external part of blower fan, so require spiral case itself not leak gas, for the tightness that guarantees spiral case requires, existing employed conventional method is to adopt electric welding gas welding welding technique to carry out; Another kind method then adopts the seaming sewing process, though this technology is energy-conservation, quality of product is attractive in appearance, is confined to the sheet metal structure, and steel plate thickness is greater than then carrying out generally only suitable air-conditioning draught fan or the use of little plane No. blower fan more than the 2mm.And the use welding procedure though the sheet material thickness is less demanding, the energy consumption height, produce to be polluted big (waste gas, noise) in manufacture process.

The model utility content

The purpose of this utility model is to address the above problem and is not enough, and a kind of all thickness steel plate processing that is applicable to is provided, and tightness is good, making is simple, helps worm frame energy-conservation, the blower fan that cuts down the consumption of energy.

The technical solution of the utility model is achieved in that

A kind of worm frame of blower fan, its characteristics are to comprise spiral case plate and two snail cover plates, wherein roll curved forming by a long slab material after the dual side-edge of its length direction bends inwards out the spiral-lock groove respectively, two snail cover plates are set in the spiral-lock groove punching press accordingly by its periphery respectively and are fixed on the biend of spiral case plate.

For further improving the tightness of interlock between spiral case plate and the snail cover plate, above-mentioned spiral-lock groove is the cell body of letter U type structure.

The utility model adopts by a long slab material and roll the curved spiral case plate structure that forms after the dual side-edge of its length direction bends inwards out the spiral-lock groove respectively, two snail cover plates of spiral case are set in the spiral-lock groove accordingly by its periphery, be fixed on hermetically on the biend of spiral case plate by its punching press technique for fixing again.The utility model is not only applicable to the manufacturing of all thickness steel plate, and the spiral case that goes out of manufacturing have tightness good, make characteristics simple, aesthetic in appearance easily, and help saving the energy, reduce the energy consumption of enterprise and reduce pollution environment.

Below in conjunction with accompanying drawing the utility model is further described:

Description of drawings

Fig. 1 is a main TV structure schematic representation of the present utility model.

Fig. 2 is the sectional structure schematic representation of the utility model Figure 1A-A direction.

Fig. 3 is curved preceding structural representation for spiral case plate of the present utility model rolls.

Fig. 4 is the left TV structure schematic representation of the utility model Fig. 3.

Fig. 5 is the structural representation of spiral case plate of the present utility model.

Fig. 6 is a punching press edge sealing schematic representation of the present utility model.

Fig. 7 is the utility model Fig. 6 B-B part enlarged view.

Embodiment

As Fig. 1 and shown in Figure 2, the worm frame of a kind of blower fan described in the utility model, comprise spiral case plate 1 and two snail cover plates 2, wherein roll curved forming by a long slab material after the dual side-edge of its length direction bends inwards out spiral-lock groove 11 respectively, two snail cover plates 2 are set in the spiral-lock groove 11 punching press accordingly by its periphery respectively and are fixed on the biend of spiral case plate 1.For further improving the tightness of interlock between spiral case plate and the snail cover plate, as Fig. 2, Fig. 4 and shown in Figure 7, above-mentioned spiral-lock groove 11 is the cell body of letter U type structure.Have through hole 21 on snail cover plate 2, this through hole 21 can conveniently be installed other parts of blower fan.

Manufacture process of the present utility model is as follows: at first by bending equipment with a block length strip boards, along the length direction of sheet material, its dual side-edge is converted into U type spiral-lock groove 11, its structure as shown in Figure 3 and Figure 4; Then, will roll the shape that curves as shown in Figure 5 by plate roller; Again snail cover plate 2 setting-ins are gone on the biend of spiral case plate 1, its periphery is set in the spiral-lock groove 11 accordingly, and after fixing with the spot welding mode.Be put into the rolling riveter punching press again and sew up its punching press suture way such as Fig. 6 and shown in Figure 7.This rolling riveter working procedure is as follows: the spiral case that fixes is put into above the raising platform 3 before the rolling riveter, have universal rotating disk 4 on the raising platform 3, adjust behind the position with the edge that guarantees spiral case and be positioned in the middle of two rollers, screw rod 7 is spinned down make upper roller 5 and bottom roller 6 press the edge of spiral case then; Then, start rolling riveter and make two rollers carry out synchronous different direction rotation, the operation volume then rotates spiral case synchronously and finishes up to roll riveting and get final product.

Characteristics of the present utility model are that processability of product structure is simple, and air-tightness is good, good looking appearance, with traditional Welding procedure is relatively saved the electricity charge 80%, saves welding rod 90%, and in manufacturing process, produce The little noise of waste gas (weldering cigarette) is low, and the effect actively pushed forward is played by the society of the energy-conserving and environment-protective low consumption advocated today.

Claims

1, a kind of worm frame of blower fan, it is characterized in that comprising spiral case plate (1) and two snail cover plates (2), wherein roll curved forming by a long slab material after the dual side-edge of its length direction bends inwards out spiral-lock groove (11) respectively, two snail cover plates (2) are set in the spiral-lock groove (11) punching press accordingly by its periphery respectively and are fixed on the biend of spiral case plate (1).

2,, it is characterized in that above-mentioned spiral-lock groove (11) is the cell body of letter U type structure according to the worm frame of the described blower fan of claim 1.

3,, it is characterized in that having on the above-mentioned snail cover plate (2) through hole (21) according to the worm frame of the described blower fan of claim 1.