CN2415185Y - Improved structure of casing for blower - Google Patents

Abstract

The utility model relates to an improved structure of a casing for blowers, which comprises a hollow body which is provided with an air feeding opening and two side plates which can connect both sides of the body. The side plate is provided with a lug and a hollow opening which can be connected with the body, and a multiblade fan can be arranged in a containing space formed between the body and the side plate. The utility model is characterized in that the inner side surface of the air feeding opening is provided with an outwards expanded guide plate, at least the inner diameter of the opening of one side plate is a little larger than an outer diameter of the multiblade fan, the opening part is connected with a sealing plate, and the inner diameter of the sealing plate is smaller than the outer diameter of the multiblade fan. The multiblade fan can enter from the opening and be sealed by the sealing plate, and the generated air source can be outwards and radically exhausted with the guide plate.

Description

The structure-improved of blower case

The utility model is the structure of relevant a kind of blower case, is in particular a kind of structure-improved at gas fan air-supply efficient and package assembly.

At present general known blower case, as shown in Figure 1, the hollow body 91 that is formed with an air blowing opening 96 after its blower case 90 is mainly curled by one is formed with biside plate 92, this main body 91 is formed with one with side plate 92 inboards can be for the containing space of a ccontaining multi-wing fan 70, be respectively equipped with a hollow opening 93 on each side plate 92, the lug 94 of plural number and the joint seat 95 of plural number, its opening 93 can supply multi-wing fan 70 external driving mechanisms (figure does not show), the internal diameter of these openings 93 is all less than the external diameter of multi-wing fan 70, the main body 91 but 94 attachment screws 97 of lug are spirally connected, these joint seats 95 then can cooperate blower case 90 is positioned in the location mechanism (figure do not show).

Because opening 93 internal diameters of its side plate 92 are less than the external diameter of multi-wing fan 70, so when needing installation or maintenance multi-wing fan 70, need dismantle the screw 97 on the main body 91 one by one and pull open the main body 91 that is the shape that curls, anti-phase again step assembling, very trouble after the to be installed or maintenance! And because attached water droplet or the aqueous vapor write of regular meeting on the fin of multi-wing fan 70; when it turns round; water droplet or aqueous vapor can be followed tangent direction and be sprayed on and (comprise lug 94 positions that link main body 91) on the main body 91 inboard wall bodies; and cause lug 94 and screw 97 corrosions, influence dismounting maintenance operation in the future.

Because its air blowing opening 96 is the squares that are a surfacing, the wind regime that Gu Qisuo sends also will follow rectilinear direction and flow, this air supply mode for the overall space of wind-engaging, its wind territory narrower and have consuming time, waste energy and shortcomings such as efficient is low.

In addition, because the joint seat 95 of known blower case 90 is to adopt the narrow and small auricle design of plural pieces area more, it is not only because of beyond the easily distortion of strength deficiency own, distortion or the fracture, and when its binding positioning means, also can't provide firm, stable locating effect.

In view of this, the utility model creator this in design and the manufacturing experience of being engaged in association area for many years, various shortcoming thoughts on known blower case, be concentrate on studies and through repeatedly the test, finally provide the utility model " structure-improved of blower case ", in the hope of driving the flourish of related industry.

The purpose of this utility model is to provide a kind of structure-improved of blower case, and it can effectively improve air-supply efficient.

Another purpose of the present utility model is to provide a kind of structure-improved of blower case, and it has the advantage of easy accessibility.

A purpose more of the present utility model is to provide a kind of ventilating blower structure firm in structure and that fixed effect is good that has.

The utility model " structure-improved of blower case ", it mainly comprises the main body and the biside plate of a hollow.

This main body has an air blowing opening, and the inner side surface of its air blowing opening is provided with the guide plate of a pair of outer expanding shape, and is preferably, these guide plates be in adopting shallow outer dark be designed to good.

These side plates link this main body both sides, be respectively arranged with on it can for the lug that links main body, can be for joint seat and the hollow opening of this blower case of location in a location mechanism, wherein, joint seat is the long strip-board shape that is whole, and wherein the internal diameter of at least one opening is the external diameter that is slightly larger than the multi-wing fan of the ccontaining main body of desire inboard, and this opening is and can links the shrouding of an internal diameter less than this multi-wing fan external diameter.

By this, multi-wing fan can be inserted by the opening of side plate and is positioned in the containing space, improve problems such as the difficult and easy corrosion of known dismounting, the wind regime that this multi-wing fan produced then can be by this guiding to the guide plate that is outer expanding shape and is provided with, and the wind regime of the order air blowing opening of sending also is outer expanding shape ground wide-angle and sends, and then the raising efficient of blowing.And reach the saving energy and spread purposes such as quick.

And in addition, the joint seat on the side plate is improved as whole rectangular en plaque structure, can improve the intensity of joint seat, makes it more firmly to link positioning means.

Because the development of gas fan at present is very ripe, breaks through sincere genus again and be difficult for, so though the non-creation with height of the utility model is promoted known effect owing to truly have, so novel patent is applied in the whence in accordance with the law.

For further specifying structure of the present utility model and feature thereof, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:

Fig. 1 is the STRUCTURE DECOMPOSITION schematic representation of known gas fan.

Fig. 2 is the perspective view of the utility model gas fan.

Fig. 3 is the STRUCTURE DECOMPOSITION schematic representation that the utility model gas fan cooperates multi-wing fan.

Structure of the present utility model please cooperate and consult Fig. 2 and Fig. 3, and this blower case 10 mainly is main body 20, one first side plate 30 and one second side plate 40 that comprises a hollow volute shape.

The main body 20 of this hollow volute shape is to have an air blowing opening 21, and these air blowing opening 21 inner side surfaces are provided with a pair of rough guide plate 22 that is the splayed shape outer expanding shape, and these guide plates 22 are to adopt dark design outside as shown in the figure interior shallow in present embodiment.

This first side plate 30 and second side plate 40 are the left and right sides that link this main body 20 respectively, make this main body 20 and side plate inboard be formed with the containing space of a hollow, and this containing space then can be in order to a ccontaining multi-wing fan 70.This first side plate 30 and second side plate 40 are to include a plurality of lug 32,42, one joint seats 33,43 and a hollow opening 31,41 respectively.

These lugs 32,42 can cooperate rivet 60 and first side plate 30 and second side plate 40 is fixedly connected respectively in the left and right sides of this main body 20.

These joint seats the 33, the 43rd are all-in-one-piece long strip-board shape respectively, dig respectively on it to be provided with a plurality of holes that blower case 10 of the present utility model linked a location mechanism (figure does not show) for attachment screw (figure does not show).

In addition, in present embodiment, opening 41 internal diameters of this second side plate 40 are the external diameters that are slightly less than this multi-wing fan 70, opening 31 internal diameters of this first side plate 30 then are slightly larger than the external diameter of this multi-wing fan 70, and this opening 31 is and can cooperates screw 61 and link the shrouding 50 of an internal diameter less than these multi-wing fan 70 external diameters, make multi-wing fan 70 dispose the containing space of main body 20 inboards, sealed with this shrouding 50 again by this opening 31.

In fact, the opening 41 of this second side plate 40 also can be adopted with opening 31 design as first side plate 30, and is sealed it with a shrouding 50, in this and give and indicating.

By this, multi-wing fan 70 is disposed by the opening 31 of first side plate 30 and be positioned in the containing space of main body 20 inboards, again with shrouding 50 these openings 31 of sealing.When desire is keeped in repair this multi-wing fan 70 or other assemblies in the future, only need this shrouding 50 of dismounting to keep in repair fast, because shrouding 50 is to be linked on the side plate, but not on the tangent position when being positioned at multi-wing fan 70 and rotating, so problems such as non-corrodings.

And the wind regime of being sent as for multi-wing fan 70, then be provided with a pair of guiding that is outer expanding shape and adopts the guide plate 22 of interior shallow outer dark design via this, can make wind regime except sending along the rectilinear direction of air blowing opening 21, can guide again wind regime beyond air blowing opening 21 both sides oblique direction and wide-angle send, enlarge blowing range (angle), improve air-supply efficient, make this wind-engaging space (figure does not show) be reached the air-supply purpose more quickly, thereby reduce expending of the energy.

In addition, in present embodiment, the joint seat 33,43 that links positioning means, it is to adopt with all-in-one-piece long strip-board shape structural design, this structural design can significantly improve structure stress intensity, thereby avoid distortion, distortion or even the facts such as fracture take place, gas fan of the present utility model can firmly be positioned on the positioning means.

In sum, " structure-improved of blower case " of the present utility model really can reach the creation purpose by the disclosed structure of mat, tool progress ground utility function.Only, the above person only is preferred embodiment of the present utility model, and category of the present utility model is not still taken off in various modifications and variation that all foundations spirit of the present utility model is done, so should be as the criterion with claim.

Claims (3)

1. the structure-improved of a blower case, it comprises the volute main body and the biside plate of a hollow, this main body has an air blowing opening, these side plates link this main body both sides, be respectively arranged with on it can for the lug that links main body, can be for joint seat and the hollow opening of this blower case of location in a location mechanism, one multi-wing fan can be arranged in this main body inboard and the inboard formed containing spaces of these side plates, and this multi-wing fan rotates the wind regime that is produced and then can be sent by this air blowing opening; It is characterized in that:

This main body is to be provided with a pair of guide plate that slightly is the splayed shape outer expanding shape in the inner side surface near its air blowing opening, and the opening internal diameter that has side plate at least is to be slightly larger than the external diameter of desiring to be placed in the multi-wing fan in the containing space, and the opening of this side plate is and can links the shrouding of an internal diameter less than this multi-wing fan external diameter.

2. the structure-improved of blower case according to claim 1 is characterized in that, wherein these guide plates are shallow outer dark designs in adopting.

3. the structure-improved of blower case according to claim 1 is characterized in that, wherein the joint seat on these side plates is to be all-in-one-piece long strip-board shape.

Images