CN204493282U - A kind of centrifugal blower volute - Google Patents

Abstract

A kind of centrifugal blower volute, comprise left sideboard, right sideboard and ring wall, left sideboard and/or right sideboard are provided with intake grill, ring wall and left sideboard, right sideboard surround exhaust outlet, it is characterized in that: the upper edge of left sideboard and right sideboard is inwardly all formed or the upper kink of outwards bending, the end face of upper kink is and left sideboard and the perpendicular plane of right sideboard, the lower edge of left sideboard and right sideboard is inwardly all formed or the lower kink of outwards bending, and the bottom surface of lower kink is and left sideboard and the perpendicular plane of right sideboard.Because the left sideboard of this centrifugal blower volute and right sideboard all have upper kink with mounting plane and lower kink, during installation, other fixing frames such as slotted-angle shelving are no longer needed to be fixed on by spiral case in box-type casing or on other spiral case fitting seats, but just can be fixed spiral case by installing the fastening pieces such as screw on the mounting plane of lower kink and upper kink, not only mounting structure is more simple, and installation cost reduces greatly.

Description

A kind of centrifugal blower volute

Technical field

The utility model relates to a kind of centrifugal blower, especially relates to a kind of centrifugal blower volute.

Background technique

Existing centrifugal blower generally all includes fan installation frame, volute of blower and is arranged on the impeller assembly of spiral case inside, and wherein, volute of blower is fixed on fan installation frame, when installing blower fan, is fixed in fan shroud by blower rack.Such as common box type fan, general employing fixes fan installation frame on the outer casing inner wall of box type fan at present, volute of blower could must be fixed in the enclosure by fan installation frame, although, adopt fan installation frame can improve the intensity of fan installing structure, but too increase the manufacture cost of blower fan simultaneously.And for example some centrifugal blower that can be used alone, need not install in the enclosure during use, but also needs spiral case to be fixed on fan installation frame.In sum, need to be improved existing centrifugal fan structure.

Model utility content

Technical problem to be solved in the utility model is for above-mentioned prior art present situation, provides a kind of structure simple, firm and the centrifugal blower volute that installation cost is low.

The utility model solves the problems of the technologies described above adopted technological scheme: this centrifugal blower volute, comprise left sideboard, right sideboard and the ring wall be connected between left sideboard and right sideboard, left sideboard and/or right sideboard are provided with intake grill, described ring wall is positioned at opening end on circumferential direction and described left sideboard, right sideboard surrounds exhaust outlet, it is characterized in that: the upper edge of described left sideboard and right sideboard is inwardly all formed or the upper kink of outwards bending, and the end face of described upper kink is and left sideboard and the perpendicular plane of right sideboard, the lower edge of described left sideboard and right sideboard is inwardly all formed or the lower kink of outwards bending, and the bottom surface of described lower kink is and left sideboard and the perpendicular plane of right sideboard.

Preferably, the back edge of described left sideboard and right sideboard is inwardly all formed or the rear kink of outwards bending, and the back side of described rear kink is and left sideboard and the perpendicular plane of right sideboard.Like this, when mounted, rear kink also can be used for fixing spiral case, thus makes volute installation structure more firm.

In order to improve the fastness of volute installation structure further, the front of described left sideboard and right sideboard is along being inwardly all formed or the front kink of outwards bending, and the front of described front kink is and left sideboard and the perpendicular plane of right sideboard.

In order to improve the structural strength of each kink, described upper kink, lower kink, rear kink and front kink are single layer structure or are at least double layer construction.

Preferably, described left sideboard and right sideboard are square.Adopt direction side plate, each kink of formation all has mounting plane.

Can have between ring wall from side plate and multiplely different be connected and fixed structure, a kind of preferred version is, described left sideboard and right sideboard all have the jack distributed ringwise, the dual-side of described ring wall is along being all formed with the inserted sheet distributed ringwise, and described inserted sheet plugs and is fixed in the jack of correspondence after bend.

Another kind of preferred version is, the dual-side of described ring wall is along welding or riveted joint are fixed on described left sideboard and right sideboard respectively.

Compared with prior art, the utility model has the advantage of: because the left sideboard of this centrifugal blower volute and right sideboard all have upper kink with mounting plane and lower kink, when spiral case is installed, other fixing frames such as slotted-angle shelving are no longer needed to be fixed on by spiral case in box-type casing or on other spiral case fitting seats, but just can be fixed spiral case by installing the fastening pieces such as screw on the mounting plane of lower kink and upper kink, not only mounting structure is more simple, and installation cost can reduce greatly.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the perspective exploded view of the utility model embodiment one;

Fig. 3 is the enlarged diagram of part A in Fig. 2;

Fig. 4 is the schematic diagram of a kind of bending structure of the utility model embodiment one right sideboard;

Fig. 5 is the schematic diagram of the another kind of bending structure of the utility model embodiment one right sideboard;

Fig. 6 is the schematic diagram of the another kind of bending structure of the utility model embodiment one right sideboard;

Fig. 7 is the schematic diagram of the another kind of bending structure of the utility model embodiment one right sideboard;

Fig. 8 is the structural representation of the utility model embodiment two.

Embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

Embodiment one:

As shown in Figures 1 to 4, with direction shown in arrow in Fig. 1 for dextrad, the ring wall 3 that centrifugal blower volute in the present embodiment comprises left sideboard 1, right sideboard 2 and is connected between left sideboard 1 and right sideboard 2, left sideboard 1 and right sideboard 2 are equipped with intake grill 4 and form both sides air inlet, ring wall 3 is positioned at opening end on circumferential direction and left sideboard 1, right sideboard 2 surround exhaust outlet 5.

In the present embodiment, left sideboard 1 and right sideboard 2 are square, the upper edge of left sideboard 1 and right sideboard 2 all forms the upper kink 6 of outwards bending, the lower edge of left sideboard 1 and right sideboard 2 is all formed with the lower kink 7 of outwards bending, the back edge of left sideboard 1 and right sideboard 2 all forms the rear kink 8 of outwards bending, and the front of left sideboard 1 and right sideboard 2 is along the front kink 9 all forming outwards bending.

The concrete bending structure of above-mentioned kink is: upper kink 6 is bending 90 degree downwards again after the outside horizontal buckling in the upper edge of left sideboard 1, right sideboard 2 90 degree, and the end face 61 namely going up kink 6 is and left sideboard 1 and the perpendicular plane of right sideboard 2; Lower kink 7 upwards bends 90 degree again after the outside horizontal buckling in the lower edge of left sideboard 1, right sideboard 2 90 degree, namely descends the bottom surface 71 of kink 7 to be and left sideboard 1 and the perpendicular plane of right sideboard 2; Rear kink 8 forward fold 90 degree again after the back edge of left sideboard 1, right sideboard 2 outwards bends 90 degree, namely, the back side 81 of kink 8 is and left sideboard 1 and the perpendicular plane of right sideboard 2; Front kink 9 bends 90 degree backward from the front of left sideboard 1, right sideboard 2 again after outside bending 90 degree, and namely the front 91 of front kink 9 is and left sideboard 1 and the perpendicular plane of right sideboard 2.By the above-mentioned plane being formed at each kink, when spiral case is installed, no longer need with other fixing frames such as slotted-angle shelvings, spiral case to be fixed in box-type casing or on other spiral case fitting seats again, but the fastening pieces such as screw are installed in above-mentioned plane just can be fixed spiral case, not only mounting structure is more simple, and installation cost can reduce greatly.

In the present embodiment, left sideboard 1 and right sideboard 2 all have the jack 10 distributed ringwise, the dual-side of ring wall 3 is along being all formed with the inserted sheet 31 distributed ringwise, and inserted sheet 31 plugs and is fixed in the jack 10 of correspondence after bend, thus ring wall 3 is fixed between left sideboard 1 and right sideboard 2.

As shown in Figure 5, the upper edge of right sideboard 2 just forms upper kink 6 directly to outer bending 90 degree, and lower edge just forms lower kink 7 directly to outer bending 90 degree.Other edges of right sideboard 2 and the bending structure of left sideboard can, with reference to this bending structure, not launch to describe at this.

As shown in Figure 6, right sideboard 2 forms double layer construction at kink, and the concrete structure of this bending structure is identical with the bending structure shown in Fig. 4, and other edges of right sideboard 2 and the bending structure of left sideboard can, with reference to this bending structure, not launch to describe at this.

As shown in Figure 7, right sideboard 2 forms double layer construction at kink, and the concrete structure of this bending structure is identical with the bending structure shown in Fig. 5, and other edges of right sideboard 2 and the bending structure of left sideboard can, with reference to this bending structure, not launch to describe at this.

Embodiment two:

As shown in Figure 8, the left sideboard 1 of the centrifugal blower volute in the present embodiment and each edge of right sideboard 2 all bend inwards to form corresponding kink, and other structures are identical with the structure in embodiment one, do not launch to describe at this.

The foregoing is only preferred implementation of the present utility model, should be understood that, for those of ordinary skills, do not departing under principle prerequisite of the present utility model, multiple remodeling or improvement can be carried out to the utility model, such as ring wall from can also adopt other different fixed structures between left sideboard and right sideboard, as the dual-side of ring wall is fixed on left sideboard and right sideboard along welding respectively or riveting, such as left sideboard and right sideboard can also adopt multi-layer structure at respective kink again, such as left sideboard and right sideboard can also adopt other shapes except square again, as long as make the upper of left sideboard and right sideboard, lower kink has the plane for installing fixing spiral case, such as intake grill can also adopt single admission mouth again, and intake grill can be once drawing and forming on side plate, also intake grill can be formed by the mode being installed into air port circle, these are all regarded as within protection domain of the present utility model.

Claims (7)

1. a centrifugal blower volute, comprise left sideboard (1), right sideboard (2) and the ring wall (3) be connected between left sideboard (1) and right sideboard (2), left sideboard (1) and/or right sideboard (2) are provided with intake grill (4), described ring wall (3) is positioned at opening end on circumferential direction and described left sideboard (1), right sideboard (2) surrounds exhaust outlet (5), it is characterized in that: the upper edge of described left sideboard (1) and right sideboard (2) is inwardly all formed or the upper kink (6) of outwards bending, and the end face (61) of described upper kink (61) is and left sideboard (1) and the perpendicular plane of right sideboard (2), the lower edge of described left sideboard (1) and right sideboard (2) is inwardly all formed or the lower kink (7) of outwards bending, and the bottom surface (71) of described lower kink (7) is and left sideboard (1) and the perpendicular plane of right sideboard (2).

2. centrifugal blower volute according to claim 1, it is characterized in that: the back edge of described left sideboard (1) and right sideboard (2) is inwardly all formed or the rear kink (8) of outwards bending, and the back side (81) of described rear kink (8) is and left sideboard (1) and the perpendicular plane of right sideboard (2).

3. centrifugal blower volute according to claim 2, it is characterized in that: the front of described left sideboard (1) and right sideboard (2) is along being inwardly all formed or the front kink (9) of outwards bending, and the front (91) of described front kink (9) is and left sideboard (1) and the perpendicular plane of right sideboard (2).

4. centrifugal blower volute according to claim 3, is characterized in that: described upper kink (6), lower kink (7), rear kink (8) and front kink (9) are single layer structure or are at least double layer construction.

5. centrifugal blower volute according to claim 1, is characterized in that: described left sideboard (1) and right sideboard (2) are square.

6. the centrifugal blower volute according to claim arbitrary in claim 1 to 5, it is characterized in that: on described left sideboard (1) and right sideboard (2), all have the jack (10) distributed ringwise, the dual-side of described ring wall (3) is along being all formed with the inserted sheet (31) distributed ringwise, and described inserted sheet (31) plugs and is fixed in the jack (10) of correspondence after bend.

7. the centrifugal blower volute according to claim arbitrary in claim 1 to 5, is characterized in that: the dual-side of described ring wall (3) is along welding or riveted joint are fixed on described left sideboard (1) and right sideboard (2) respectively.