CN217558633U - Volute component convenient to install - Google Patents

Abstract

The utility model discloses a spiral case subassembly convenient to installation, including last casing and lower casing, the periphery along last casing is equipped with at least three assembly lug one, along the periphery of casing down along being equipped with at least three and assembly lug one corresponding assembly lug two in position, all be equipped with the perforation on assembly lug one and the assembly lug two, assembly lug one goes up fenestrate both sides and is equipped with elastic locating part, assembly lug two goes up fenestrate both sides and is equipped with the draw-in groove that supplies the locating part card to establish, it is equipped with the protruding edge of annular on the terminal surface of casing conflict down to go up the casing, be equipped with on the casing down and supply the protruding ring channel of establishing along inlaying of annular, be equipped with two at least elastic fasteners that have on the outer wall on the protruding edge of annular, be equipped with the bayonet socket that supplies the fastener card to establish on the inner wall of ring channel. The utility model has the advantages of the assembly fastness is high, makes product quality better.

Description

Volute component convenient to install

Technical Field

The utility model relates to a fan technical field, more specifically say, it relates to a spiral case subassembly convenient to installation.

Background

The centrifugal fan generally comprises a volute, an impeller and a motor, and is widely applied to the field of range hoods due to the advantages of large suction force, low noise, compact structure and the like. The volute is usually designed into a structure of an upper shell and a lower shell which can be split, lugs with assembly holes are arranged on the outer edges of the upper shell and the lower shell, when the upper shell and the lower shell are assembled, the lugs on the upper shell and the lower shell correspond to each other, and bolts sequentially penetrate through the assembly holes in the lugs to realize fixed assembly. The assembly mode of spiral case such, the existence is difficult to align the lug of going up casing and casing down fast, causes the bolt can't wear to establish the pilot hole fast and carries out the problem assembled, has long-term use back simultaneously, and the bolt is easy not hard up, leads to going up the casing and the not enough problem of casing compactness down.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a promote the assembly fastness, and the spiral case subassembly of the installation of being convenient for.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a spiral case subassembly convenient to installation, includes casing and lower casing, follows the periphery of last casing and is equipped with at least three assembly lug one, along the periphery of casing down along being equipped with at least three and assembly lug one position corresponding assembly lug two, all be equipped with the perforation on assembly lug one and the assembly lug two, assembly lug one goes up fenestrate both sides and is equipped with and has elastic locating part, assembly lug two goes up fenestrate both sides and is equipped with the draw-in groove that supplies the locating part card to establish, it is equipped with the protruding edge of annular on the terminal surface of casing conflict with lower casing to go up the casing, be equipped with the annular groove that supplies the protruding edge of annular to inlay to establish down on the casing, be equipped with two at least elastic fastener that have on the outer wall on the protruding edge of annular, be equipped with the bayonet socket that supplies the fastener card to establish on the inner wall of annular groove.

The utility model discloses further set up to: the clamping piece is made of plastic materials, the tail of the clamping piece is fixed on the annular convex edge, the other end of the clamping piece is in an upward inclined state, and a space is formed between the clamping piece and the annular convex edge.

The utility model discloses further set up to: and a socket for the limiting part to be inserted is arranged on the second assembling lug, and a spring is arranged between the bottom of the limiting part and the bottom wall of the socket.

Through adopting above-mentioned technical scheme, go up casing and casing down when the assembly, through the protruding edge of annular and the cooperation of ring channel to and the cooperation of fastener and bayonet socket, can realize both complex compactness, avoid the bolt to take place not hard up the back, cause the poor problem of structural firmness of whole spiral case assembly. Simultaneously, when the bolt is assembled, the through holes in the upper shell and the lower shell can be aligned quickly, and the assembling efficiency is convenient to promote.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is an enlarged partial view of the upper housing;

FIG. 3 is an enlarged view of FIG. 1 at b;

fig. 4 is a partial cross-sectional view of the present invention;

FIG. 5 is a partial cross-sectional view of the mounting tab;

fig. 6 is an enlarged view of a portion a in fig. 1.

1. An upper housing; 10. assembling a first bump; 11. perforating; 12. a stopper; 13. an annular convex edge; 14. A fastener; 15. a socket; 16. a spring; 2. a lower housing; 20. assembling a second bump; 21. a card slot; 22. a bayonet; 23. an annular groove.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 6. The structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather the structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

The utility model provides a spiral case subassembly convenient to installation, includes casing 1 and casing 2 down, is equipped with at least three assembly lug one 10 along the periphery of casing 1, along the periphery of casing 2 down along being equipped with at least three and assembly lug two 20 corresponding in position, assembly lug one and assembly lug two go up and all be equipped with perforation 11, assembly lug one goes up perforation 11's both sides and is equipped with elastic locating part 12, assembly lug two goes up perforation 11's both sides and is equipped with the draw-in groove 21 that supplies locating part 12 to block to establish, it is equipped with the protruding edge 13 of annular on casing 1 and the inconsistent terminal surface of casing 2 down, be equipped with the annular groove 23 that supplies the protruding edge 13 of annular to inlay to establish down on casing 2, be equipped with two at least elastic fastener 14 on the outer wall of the protruding edge 13 of annular, be equipped with the bayonet socket 22 that supplies fastener 14 to block to establish on the inner wall of annular groove 23. The clamping piece 14 is made of plastic materials, the tail part of the clamping piece is fixed on the annular convex edge 13, the other end of the clamping piece is in an upward inclined state, and a space is formed between the clamping piece and the annular convex edge 13. The second assembling lug is provided with a socket 15 into which the limiting part 12 is inserted, and a spring 16 is arranged between the bottom of the limiting part 12 and the bottom wall of the socket 15.

Go up casing 1 and casing 2 down when the assembly, with the annular protruding edge 13 on the casing 1 insert locate casing 2's annular groove 23 down in, fastener 14 then card is located in bayonet 22, and it is fixed to form the preliminary cooperation of casing 1 and casing 2 down, prevents that both from taking place the displacement. The first assembling lug 10 and the second assembling lug 20 are in a mutually inconsistent state at the moment, through fine position adjustment, the limiting part 12 on the first assembling lug 10 is clamped in the clamping groove 21 of the second assembling lug 20, the through holes 11 on the first assembling lug 10 and the second assembling lug 20 are in a communicated state, when the bolts are assembled on the through holes 11 on any one group of first assembling lug 10 and the second assembling lug 20, the positions of the first assembling lug 10 and the second assembling lug 20 of other groups are limited by the limiting part 12, deviation is not easy to occur, a worker can quickly operate all stations needing assembling the bolts, the phenomenon that the through holes 11 are not aligned is avoided, the position of the through holes 11 needs to be corrected for many times, and the assembling efficiency of the volute is improved. Meanwhile, due to the arrangement of the annular convex edge 13 and the clamping piece 14, the mode of bolt matching and fixing is not used singly, so that the firmness of volute assembly is improved, and the product quality is improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (3)

1. A spiral case subassembly convenient to installation, includes upper housing and lower casing, its characterized in that: the outer periphery along last casing is equipped with at least three assembly lug one, along the outer periphery along being equipped with at least three assembly lug two corresponding with assembly lug position of casing down, all be equipped with the perforation on assembly lug one and the assembly lug two, the fenestrate both sides are equipped with and have elastic locating part on the assembly lug one, the fenestrate both sides are equipped with the draw-in groove that supplies the locating part card to establish on the assembly lug two, it is equipped with the protruding edge of annular on the terminal surface that upper casing contradicts with lower casing, be equipped with the annular groove that supplies the protruding edge of annular to inlay to establish on the casing down, be equipped with at least two on the outer wall on the protruding edge of annular and have elastic fastener, be equipped with the bayonet socket that supplies the fastener card to establish on the inner wall of annular groove.

2. A readily installable volute assembly according to claim 1 wherein: the clamping piece is made of plastic materials, the tail part of the clamping piece is fixed on the annular convex edge, the other end of the clamping piece is in an upward inclined state, and a space is formed between the clamping piece and the annular convex edge.

3. A volute assembly for ease of installation according to claim 2, wherein: and a socket for the limiting part to be inserted is arranged on the second assembling lug, and a spring is arranged between the bottom of the limiting part and the bottom wall of the socket.

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