Fixing structure for speed reduction gearbox and fan rear shell

Abstract

The utility model discloses a fixing structure of a speed reduction gearbox on a fan rear shell, which comprises the rear shell and the speed reduction gearbox, the side surface of the rear shell is provided with a buckle, the rear shell is provided with a cover plate, the surface of the cover plate is provided with a bayonet corresponding to the buckle, the surface of the cover plate is provided with a motor, the surface of the rear shell is fixedly connected with a plurality of sleeves, and the sleeves are fixedly connected with the rear shell. The speed reduction gearbox is installed on the surface of the motor, a front cover is installed on the upper surface of the speed reduction gearbox, a plurality of screw hole pipes are arranged on the surface of the front cover, and the screw hole pipes are inserted into the corresponding sleeves and fixedly connected through screws; the front cover of the speed reduction gearbox is provided with the screw hole pipe, the screw hole pipe is inserted into the sleeve of the rear shell and fixed through the screw, the rear shell is reinforced, meanwhile, the auxiliary rod is matched to fix the middle of the rear shell, the rear shell is not prone to loosening after being fixed, the rear shell can be better prevented from being loosened when accidentally collided, and the quality of the floor fan is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of floor fans, in particular to a fixing structure for a reduction gearbox on a fan rear shell. Background Technique

[0002] The composition structure of the power part of a household floor fan is as Figure 1 shown. The connection between the rear shell 1 and the cover plate 2 is mostly carried out by four to six buckles 3. Since the rear shell 1 and the cover plate 2 are made of plastic, after using for a period of time, the plastic ages, resulting in a poor clamping effect of the buckle 3; accidentally touching the rear shell 1 may also cause the rear shell 1 to loosen and fall off, and the installation stability of the rear shell 1 is poor. Summary of the Invention

[0003] The purpose of the utility model is to provide a fixing structure for a reduction gearbox on a fan rear shell to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a fixing structure for a reduction gearbox on a fan rear shell, including a rear shell, a buckle is provided on the side surface of the rear shell, a cover plate is installed on the rear shell, a bayonet corresponding to the buckle is provided on the surface of the cover plate, a motor is installed on the surface of the cover plate, and a plurality of sleeves are fixedly connected to the surface of the rear shell;

[0005] A reduction gearbox, the reduction gearbox is installed on the surface of the motor, a front cover is installed on the upper surface of the reduction gearbox, a plurality of screw hole tubes are provided on the surface of the front cover, the screw hole tubes are inserted into the corresponding sleeves and fixedly connected by screws, and the rear shell and the front cover are reinforced by screws, improving the installation stability of the rear shell, and the rear shell is not easy to loosen.

[0006] Further, a U-shaped frame is installed on the surface of the motor, a support seat is rotatably installed at the lower end of the U-shaped frame, an auxiliary rod is fixedly connected to the surface of the support seat, and the auxiliary rod is provided with a screw hole. A connection hole is provided in the middle of the surface of the rear shell, and the connection hole and the screw hole are also fixedly connected by screws. The auxiliary rod assists in fixing the rear shell, reinforcing the rear shell, and improving the installation quality of the rear shell.

[0007] Further, the edge of the front cover is provided with a folding plate integrally formed with the front cover, and the screw hole tube is fixedly connected to the folding plate, improving the structural strength of the front cover, the folding plate, and the screw hole tube, and not being easily damaged.

[0008] Compared with the prior art, the beneficial effect of the utility model is that the front cover of the reduction gearbox is provided with screw hole tubes, the screw hole tubes are inserted into the sleeves of the rear shell and fixed by screws, realizing the reinforcement of the rear shell. At the same time, the middle part of the rear shell is fixed by cooperating with the auxiliary rod. After the rear shell is fixed, it is not easy to loosen, and when the rear shell is accidentally collided, it can better prevent the rear shell from being knocked loose, improving the quality of the floor fan. Description of the Drawings

[0009] Figure 1 Schematic diagram of the connection between the rear shell and the cover plate of the prior art;

[0010] Figure 2 Stereogram of the present utility model;

[0011] Figure 3 Exploded view of the present utility model;

[0012] Figure 4 Schematic diagram of the structure inside the rear shell of the present utility model.

[0013] In the figure: 1, rear shell; 2, cover plate; 3, buckle; 4, support base; 5, sleeve; 6, auxiliary rod; 7, motor; 8, reduction gearbox; 9, front cover; 10, folding plate; 11, screw hole tube; 12, screw hole; 13, connection hole; 14, bayonet; 15, U-shaped frame; 16, heat dissipation hole. Specific implementation manner

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0015] Please refer to Figures 2-4 , the present utility model provides a technical solution: a fixed structure of a reduction gearbox on a fan rear shell, including a rear shell 1, a buckle 3 is provided on the side surface of the rear shell 1, a cover plate 2 is installed on the rear shell 1, a bayonet 14 corresponding to the buckle 3 is provided on the surface of the cover plate 2, and the basic connection between the rear shell 1 and the cover plate 2 is realized through the buckle 3 and the bayonet 14. A motor 7 is installed on the surface of the cover plate 2, and the rear shell 1 is provided with a heat dissipation hole 16, which can dissipate heat from the motor 7;

[0016] A plurality of sleeves 5 are fixedly connected to the surface of the rear shell 1, and the sleeves 5 are integrally injection-molded with the rear shell 1;

[0017] A reduction gearbox 8, the reduction gearbox 8 is installed on the surface of the motor 7, a front cover 9 is installed on the upper surface of the reduction gearbox 8, a plurality of screw hole tubes 11 are provided on the surface of the front cover 9, the screw hole tubes 11 are inserted into the corresponding sleeves 5 and fixedly connected with screws, so as to reinforce between the rear shell 1 and the reduction gearbox 8 and reduce the degree of looseness of the assembly of the rear shell 1.

[0018] In this embodiment, as Figure 2As shown, a U-shaped frame 15 is mounted on the surface of the motor 7. A support base 4 is rotatably mounted at the lower end of the U-shaped frame 15, and the support base 4 is connected to the support base 4 of the floor fan.

[0019] In this embodiment, as Figure 2 shown, an auxiliary rod 6 is fixedly connected to the surface of the support base 4, and the auxiliary rod 6 has a screw hole 12. A connection hole 13 is provided in the middle of the surface of the rear shell 1, and the connection hole 13 and the screw hole 12 are also fixedly connected by screws. The auxiliary rod 6 is arc-shaped, further strengthening the installation stability of the rear shell 1. When the rear shell 1 is touched, the buckle 3 is not easily broken.

[0020] In this embodiment, as Figure 2 shown, the edge of the front cover 9 is provided with a folding plate 10 integrally formed with the front cover 9, and the screw hole tube 11 is fixedly connected to the folding plate 10. The front cover 9, the folding plate 10, and the screw hole tube 11 are firmly connected, strengthening the stability of the support for the rear shell 1.

[0021] Specifically, in use, after the rear shell 1 and the cover plate 2 are connected by the buckle 3 and the bayonet 14, the screw hole tube 11 is inserted into the sleeve 5, the connection hole 13 is aligned with the screw hole 12, and screws are used to fix the screw hole tube 11 and the sleeve 5, and the connection hole 13 and the screw hole 12, completing the reinforcement installation of the rear shell 1. During the use of the floor fan, the rear shell 1 is not easily loosened, improving the quality of the floor fan and having a long service life.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed structure of a reduction gearbox to a fan rear case, characterized in that, Comprising: A rear shell (1), with a buckle (3) provided on the side of the rear shell (1). A cover plate (2) is installed on the rear shell (1). A bayonet (14) corresponding to the buckle (3) is provided on the surface of the cover plate (2). A motor (7) is installed on the surface of the cover plate (2). A number of sleeves (5) are fixedly connected to the surface of the rear shell (1). A reduction gearbox (8), which is installed on the surface of the motor (7). A front cover (9) is installed on the upper surface of the reduction gearbox (8). A number of screw hole tubes (11) are provided on the surface of the front cover (9). The screw hole tubes (11) are inserted into the corresponding sleeves (5) and fixedly connected using screws.

2. The fixed structure of a reduction gearbox to the rear housing of a fan according to claim 1, characterized in that: A U-shaped frame (15) is installed on the surface of the motor (7). A support base (4) is rotatably installed at the lower end of the U-shaped frame (15).

3. A fixed structure of a reduction gearbox to a fan rear case according to claim 2, characterized in that: An auxiliary rod (6) is fixedly connected to the surface of the support base (4), and the auxiliary rod (6) has a screw hole (12). A connection hole (13) is provided in the middle of the surface of the rear shell (1), and the connection hole (13) and the screw hole (12) are also fixedly connected using screws.

4. A fixed structure of a reduction gearbox to a fan rear case according to claim 1, characterized in that: The edge of the front cover (9) has a folding plate (10) integrally formed with the front cover (9), and the screw hole tube (11) is fixedly connected to the folding plate (10).

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