Novel centrifugal fan

Abstract

The utility model provides a novel centrifugal fan, and belongs to the technical field of fans. The problem that an existing centrifugal fan is inconvenient to maintain is solved. The novel centrifugal fan comprises a fan shell assembly and a bottom plate for installing the fan shell assembly, the fan shell assembly is composed of a shell main body and an end cover arranged at the front end of the shell main body, the periphery of the end cover is provided with a connecting part formed in a folding mode, and the connecting part is screwed on the shell main body through screws. The bottom plate is provided with a deflection mechanism allowing the shell body to rotate, the deflection mechanism comprises supporting plates arranged on the two sides of the shell body and deflection plates connected with the supporting plates and the shell body respectively, the tops of the supporting plates are provided with protruding bearing parts, the bearing parts are connected with the deflection plates through rotating shafts, and the supporting plates are provided with rail grooves. And a guide hole corresponding to the track groove is formed in the deflection plate. The utility model has the advantages that regular maintenance is convenient, the orientation can be deflected, and the use requirements of different orientation environments are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and relates to a centrifugal fan, in particular to a new type of centrifugal fan. Background Art

[0002] The existing centrifugal fans on the market have the following defects: 1. The yaw position of the fan main body cannot be adjusted. The fan main body is fixed and cannot meet the usage requirements of different azimuth environments; 2. The fan housing is integral. When maintaining the interior, the entire housing needs to be disassembled, which is very inconvenient. Summary of the Invention

[0003] The purpose of the utility model is to provide a new type of centrifugal fan that can rotate and is convenient for later maintenance in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A new type of centrifugal fan, characterized in that it includes a fan housing assembly and a bottom plate for installing the fan housing assembly. The fan housing assembly is composed of a housing main body and an end cover arranged at the front end of the housing main body. The periphery of the end cover has a folded connection part, and this connection part is tightened to the housing main body by screws. A deflection mechanism for the housing main body to rotate is provided on the bottom plate. The deflection mechanism includes support plates arranged on both sides of the housing main body and deflection plates respectively connecting the support plates and the housing main body. The top of the support plate has a protruding support part. The support part and the deflection plate are connected by a rotating shaft. A track groove is opened on the support plate. A guiding hole corresponding to the track groove is opened on the deflection plate, and a guiding stud moving along the track groove is installed on the guiding hole.

[0005] In the above-mentioned new type of centrifugal fan, the front end of the guiding stud has a handwheel cap, and its inner end is threadedly connected with a locking nut.

[0006] In the above-mentioned new type of centrifugal fan, the deflection plate is fixedly connected to the housing main body by screws.

[0007] Compared with the prior art, the new type of centrifugal fan has the advantages of convenient regular maintenance and deflectable azimuth, meeting the usage requirements of different azimuth environments. Description of the Drawings

[0008] Figure 1 is a perspective view of the new type of centrifugal fan.

[0009] Figure 2 is a perspective view of the new type of centrifugal fan.

[0010] In the figure, 1 is the bottom plate; 2 is the main body of the housing; 3 is the end cover; 4 is the connecting part; 5 is the support plate; 6 is the deflection plate; 7 is the supporting part; 8 is the rotating shaft; 9 is the track groove; 10 is the guiding stud; 11 is the handwheel cap; 12 is the locking nut. Detailed implementation mode

[0011] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0012] As Figure 1 , Figure 2 shown, the novel centrifugal fan includes a fan housing assembly and a bottom plate 1 for installing the fan housing assembly. The fan housing assembly is composed of a housing main body 2 and an end cover 3 arranged at the front end of the housing main body 2. The periphery of the end cover 3 has a connecting part 4 formed by folding, and the connecting part 4 is tightened on the housing main body 2 by screws. A deflection mechanism for rotating the housing main body 2 is provided on the bottom plate 1. The deflection mechanism includes support plates 5 arranged on both sides of the housing main body 2 and deflection plates 6 respectively connecting the support plates 5 and the housing main body 2. The top of the support plate 5 has a protruding supporting part 7, and the supporting part 7 is connected to the deflection plate 6 through a rotating shaft 8. A track groove 9 is opened on the support plate 5, and a guiding hole corresponding to the track groove 9 is opened on the deflection plate 6, and a guiding stud 10 moving along the track groove 9 is installed on the guiding hole. Centered on the rotating shaft 8, acting on the housing assembly, the housing assembly can radially swing. In addition, during the swinging process, the stud moves along the opening track of the track groove 9, and finally the radial swinging orientation of the centrifugal fan is adjusted; in addition, the fan housing assembly is not an integral structure, and the inside of the centrifugal fan can be regularly maintained by disassembling and assembling the end cover 3.

[0013] Further elaborating, the front end of the guiding stud 10 has a handwheel cap 11, and a locking nut 12 is threadedly connected to its inner end. After the deflection of the centrifugal fan is completed, it needs to be fixed. Therefore, after the deflection is completed, the locking nut 12 is tightened, so as to achieve the purpose of pressing and fixing, and the orientation of the centrifugal fan is locked.

[0014] Preferably, the deflection plate 6 is fixedly connected to the housing main body 2 by screws.

[0015] The specific embodiments described herein are only examples of the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0016] Although terms such as base plate 1, housing body 2, end cover 3, connecting portion 4, support plate 5, deflection plate 6, supporting portion 7, rotating shaft 8, track groove 9, guiding stud 10, handwheel cap 11, locking nut 12, etc. are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present utility model; any interpretation of them as an additional limitation is contrary to the spirit of the present utility model.

Claims

1. A new type of centrifugal fan, characterized in that: The invention comprises a fan housing assembly and a base plate (1) for mounting the fan housing assembly, wherein the fan housing assembly comprises a housing body (2) and an end cover (3) arranged at the front end of the housing body (2), the end cover (3) has a folded connection portion (4) on its periphery, and the connection portion (4) is screwed onto the housing body (2), the base plate (1) is provided with a deflection mechanism for rotating the housing body (2), the deflection mechanism comprises support plates (5) arranged on both sides of the housing body (2) and deflection plates (6) respectively connecting the support plates (5) and the housing body (2), the support plates (5) having a raised support portion (7) at the top, the support portion (7) being connected to the deflection plate (6) via a rotating shaft (8), the support plate (5) having a track groove (9), the deflection plate (6) having a guide hole corresponding to the track groove (9), and the guide hole having a guide stud (10) movable along the track groove (9) installed.

2. A novel centrifugal fan according to claim 1, characterized in that: The front end of the guide stud (10) is provided with a hand wheel cap (11), the inner end of which is threadedly connected with a locking nut (12).

3. A novel centrifugal fan according to claim 1, characterized in that: The deflection plate (6) is fixedly connected to the housing body (2) via screws.

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