CN202500826U - Improved structure of fan shell - Google Patents

Abstract

The utility model discloses an improved structure of a fan shell. The improved structure comprises two side walls and a covered wall arranged between the two side walls, wherein the two sides of the covered wall are bent to form clamping grooves; and each clamping groove is closely matched and connected with the corresponding side wall in a clamping way. The improvement structure of the fan shell over overcomes the defects of the existing fixed connection by welding, and has the characteristics of being simple in structure, high in processing efficiency, good in connection strength, low-carbon, environment-friendly and free from pollution.

Description

A kind of structure-improved of Blower Housing

Technical field

The utility model relates to the structure-improved of a kind of blower fan, particularly a kind of Blower Housing.

Background technique

As shown in Figure 1; The housing of general blower fan is by two side 1 ' and be positioned at bag wall 2 between the two side ' combine; At this, the two side 1 in the above structure ' and bag wall 2 ' be that split processes, existing connection is to be connected through welding 11 ' realization sealing between the three.

In reality, because of being limited by the restriction of welding procedure itself, the whole welding procedure time spent is long, and working efficiency is lower.Weld 11 simultaneously ' mode itself that is connected is prone to produce the welding shortcoming, mainly contains weld crack, lack of penetration, slag inclusion and pore etc., and these shortcomings can cause that section of weld joint is long-pending to be reduced; Bearing capacity reduces, and produces stress and concentrates, and causes crackle; Reduce fatigue strength; Be prone to cause that weldment breaks causes brittle failure, and the most important is, because of the temperature in the welding process too high; Have only bag wall and sidewall about 1.5mm to be easy to cause the perforation phenomenon for thickness, and then have a strong impact on the join strength and the tightness of housing.

In addition; Have the various heavy composition in the welding in the employed welding rod, in course of working, be prone to cause environmental pollution, can produce a large amount of carbon emission and light pollution in the welding process simultaneously; It not only deviates from the low-carbon environment-friendly theory of advocating at present mutually; Can serious harm worker's physical and mental health simultaneously, in the middle of actual production, generation arranged because of be in the case idol that the welding place causes losing one's sight throughout the year.

The model utility content

To the problems referred to above, the utility model has designed a kind of structure-improved of Blower Housing, its have simple in structure, work efficiency is high, join strength good, the free of contamination characteristics of low-carbon environment-friendly.

For realizing above-mentioned purpose, the utility model adopts following technological scheme:

A kind of structure-improved of Blower Housing comprises two side and the bag wall between the two side, it is characterized in that: equal bending forming one draw-in groove in the both sides of said bag wall, said each draw-in groove is connected with the sidewall drive fit engaging of respective side.

The utility model structure is adding man-hour; Realize that with the two side drive fit is connected when directly utilizing cold-extrusion technology to make the Bao Bi both sides be bent into draw-in groove, it is simple to have processing technology, once-through; The characteristics that work efficiency is high; Simultaneously above Placement can not impact with sidewall itself the bag wall, add draw-in groove and sidewall to be connected surface of contact very big, can effectively guarantee sidewall and the join strength and the tightness of wrapping wall.

In addition, the utility model structure can not impact environment in the whole machining process process, does not promptly have carbon emission, does not have other pollutants yet, has embodied the production theory of low-carbon environment-friendly.

Description of drawings

Fig. 1, existing Blower Housing sidewall and the schematic representation that is connected that wraps wall;

The structural representation of Fig. 2, the utility model.

Embodiment

As shown in Figure 2, a kind of structure-improved of Blower Housing comprises two side 1 and the bag wall 2 between the two side, equal bending forming one draw-in groove 21 in the both sides of said bag wall 2, and said each draw-in groove 21 is connected with the sidewall 1 drive fit engaging of respective side.

The utility model structure is adding man-hour, directly utilizes cold-extrusion technology to make bag wall 2 both sides be bent into draw-in groove 21, and realizes that simultaneously draw-in groove 21 is connected with the drive fit of two side 1; It is simple that whole machining process has technology; Once-through, the characteristics that work efficiency is high, above Placement can itself not impact with sidewall 1 bag wall 2 simultaneously; Add draw-in groove 21 and sidewall 1 to be connected surface of contact very big, can effectively guarantee the join strength and the tightness of sidewall 1 and bag wall 2.

In addition, the utility model whole machining process process is the cold-extrusion technology flow process, and it can not impact environment in producing, and does not promptly have carbon emission, does not also have other pollutants and produces, and meets the production theory of national low-carbon environment-friendly.

Claims (1)

1. the structure-improved of a Blower Housing comprises two side and the bag wall between the two side, it is characterized in that: equal bending forming one draw-in groove in the both sides of said bag wall, said each draw-in groove is connected with the sidewall drive fit engaging of respective side.

Images