Volute structure of axial flow fan

Abstract

The volute structure of the axial flow fan comprises a volute body, the volute body is installed on the inner side of a volute body bracket, the volute body bracket is composed of a fixing sleeve base and volute body fixing sleeves, the two sides of the top of the fixing sleeve base are respectively provided with one volute body fixing sleeve, and the volute body fixing sleeves are arranged on the two sides of the top of the fixing sleeve base. The two volute main body fixing sleeves are coaxially arranged, and a plurality of rolling shafts are circumferentially arranged on the surfaces of the inner sides of the volute main body fixing sleeves at equal intervals; the volute is composed of the volute body and the volute body bracket, and the rolling shaft is arranged on the inner side of the volute body fixing sleeve used for installing the volute body on the volute body bracket, so that the volute body can rotate after the volute body is installed, and the purpose of changing the position of the junction box on the volute body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fan volutes, in particular to a volute structure of an axial flow fan. Background Art

[0002] Axial flow fans are widely used. They are fans in which the airflow direction is in the same direction as the axis of the fan blades. For example, electric fans and air conditioner outdoor fans are fans that run in an axial flow mode. They are called "axial flow" because the air flows parallel to the fan axis. Axial flow fans are usually used in situations where the flow rate requirements are high and the pressure requirements are low. Axial flow fans are fixed in place and move the air.

[0003] A junction box for connecting wires is usually fixed on the casing of the axial flow fan. The position of the junction box is usually not adjustable. Therefore, during the installation of the axial flow fan, the originally reserved position may not match the position of the junction box, resulting in the problem that the installation cannot be carried out. Utility Model Content

[0004] The utility model aims to provide a volute structure of an axial flow fan to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a volute structure of an axial flow fan, including a volute body, the volute body is installed on the inner side of a volute body bracket, the volute body bracket is composed of a fixed sleeve base and a volute body fixed sleeve, a volute body fixed sleeve is respectively arranged on both sides of the top of the fixed sleeve base, the two volute body fixed sleeves are arranged coaxially, and a plurality of rollers are arranged on the inner surface of the volute body fixed sleeve at equal intervals.

[0006] Preferably, a volute body locking mechanism is installed on one side of the volute body fixing sleeve.

[0007] Preferably, the volute body locking mechanism consists of a screw rod and a clamping plate, the screw rod is threadedly matched with the volute body fixing sleeve, the clamping plate is located on the inner side of the volute body fixing sleeve and is rotatably connected to one end of the screw rod, a handle is fixed to the other end of the screw rod, and the clamping plate is an arc-shaped plate.

[0008] Preferably, a volute body anti-drop mechanism is provided on each side surface of the fixing sleeve base.

[0009] Preferably, the anti-slip mechanism of the volute main body is composed of an anti-slip plate, a second screw and a nut, the second screw is vertically fixed on the fixed sleeve base, the anti-slip plate is sleeved on the second screw and fixed by the nut, and a groove that cooperates with the volute main body is provided on the side surface of the anti-slip plate facing the fixed sleeve base.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model is composed of a volute body and a volute body bracket, and a roller is arranged on the inner side of a volute body fixing sleeve on the volute body bracket for mounting the volute body, so that the volute body can be rotated after being installed, thereby achieving the purpose of changing the position of the terminal box on the volute body;

[0011] The volute body fixing sleeve of the utility model is provided with a volute body locking mechanism, which can lock the volute body so that the volute body cannot rotate at will;

[0012] A volute body anti-slipping mechanism is respectively installed on the two side surfaces of the fixing sleeve base of the utility model, and the two volute body anti-slipping mechanisms respectively restrict the volute body from both ends, thereby preventing the volute body from slipping off the volute body bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the volute main body bracket of the utility model.

[0016] In the figure: 1. volute body; 2. volute body bracket; 3. fixed sleeve base; 4. volute body fixed sleeve; 5. roller; 6. volute body anti-slip mechanism; 7. anti-slip plate; 8. slot; 9. screw rod 2; 10. volute body locking mechanism; 11. screw rod 1; 12. clamping plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0018] See also Figure 1-2 In an embodiment of the utility model, a volute structure of an axial flow fan includes a volute body 1, which is installed on the inner side of a volute body bracket 2. The volute body bracket 2 is composed of a fixed sleeve base 3 and a volute body fixed sleeve 4. A volute body fixed sleeve 4 is arranged on each side of the top of the fixed sleeve base 3. The two volute body fixed sleeves 4 are coaxially arranged, and a plurality of rollers 5 are arranged on the inner surface of the volute body fixed sleeve 4 at equal intervals.

[0019] A volute body locking mechanism 10 is installed on one side of the volute body fixing sleeve 4. The volute body locking mechanism 10 is composed of a screw rod 11 and a clamping plate 12. The screw rod 11 is threadedly matched with the volute body fixing sleeve 4. The clamping plate 12 is located on the inner side of the volute body fixing sleeve 4 and is rotatably connected to one end of the screw rod 11. A handle is fixed to the other end of the screw rod 11, and the clamping plate 12 is an arc-shaped plate.

[0020] A volute main body anti-slipping mechanism 6 is provided on each side surface of the fixed sleeve base 3. The volute main body anti-slipping mechanism 6 is composed of an anti-slipping plate 7, a screw rod 9 and a nut. The screw rod 9 is vertically fixed on the fixed sleeve base 3. The anti-slipping plate 7 is sleeved on the screw rod 9 and fixed by a nut. A slot 8 cooperating with the volute main body 1 is provided on the surface of the anti-slipping plate 7 facing the fixed sleeve base 3.

[0021] The working principle of the utility model is as follows: the utility model is composed of a volute body 1 and a volute body bracket 2. A roller 5 is arranged on the inner side of a volute body fixing sleeve 4 for mounting the volute body 1 on the volute body bracket 2, so that the volute body 1 can rotate after being installed, thereby achieving the purpose of changing the position of the terminal box on the volute body 1;

[0022] The volute body fixing sleeve 4 of the utility model is provided with a volute body locking mechanism 10, which can lock the volute body 1 so that the volute body 1 cannot rotate at will;

[0023] A volute body anti-slip mechanism 6 is installed on both side surfaces of the fixed sleeve base 3 of the utility model. The two volute body anti-slip mechanisms 6 restrict the volute body 1 from both ends respectively, thereby preventing the volute body 1 from slipping off the volute body bracket 2.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A volute structure of an axial flow fan, comprising a volute body (1), characterized in that: The volute body (1) is installed on the inner side of a volute body bracket (2); the volute body bracket (2) is composed of a fixing sleeve base (3) and a volute body fixing sleeve (4); a volute body fixing sleeve (4) is provided on each of the two sides of the top of the fixing sleeve base (3); the two volute body fixing sleeves (4) are coaxially arranged; and a plurality of rollers (5) are provided on the inner side surface of the volute body fixing sleeve (4) at equal intervals.

2. The volute structure of an axial flow fan according to claim 1, characterized in that: A volute body locking mechanism (10) is installed on one side of the volute body fixing sleeve (4).

3. The volute structure of an axial flow fan according to claim 2, characterized in that: The volute body locking mechanism (10) is composed of a screw rod (11) and a clamping plate (12), wherein the screw rod (11) is threadedly matched with the volute body fixing sleeve (4), the clamping plate (12) is located on the inner side of the volute body fixing sleeve (4) and is rotatably connected to one end of the screw rod (11), and a handle is fixed to the other end of the screw rod (11), and the clamping plate (12) is an arc-shaped plate.

4. The volute structure of an axial flow fan according to claim 1, characterized in that: A volute main body anti-drop mechanism (6) is provided on each of the two side surfaces of the fixed sleeve base (3).

5. The volute structure of an axial flow fan according to claim 4, characterized in that: The volute main body anti-slip mechanism (6) is composed of an anti-slip plate (7), a second screw rod (9) and a nut. The second screw rod (9) is vertically fixed on the fixed sleeve base (3). The anti-slip plate (7) is sleeved on the second screw rod (9) and fixed by the nut. A slot (8) cooperating with the volute main body (1) is provided on a surface of the anti-slip plate (7) facing the fixed sleeve base (3).

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