A table fan

Abstract

This utility model relates to a desktop fan, comprising a base, a housing, a front shell plate, and a front grille. The bottom of the housing is connected and fixed to the base. An opening is formed on the front side of the housing, and the front shell plate is fitted onto the opening, forming a mounting cavity with the housing. A first semi-circular opening is formed on the front side of the housing, and a second semi-circular opening is formed on the front side of the front shell plate. The first and second semi-circular openings form an air outlet. A first arc-shaped wall is provided along the outer side of the first semi-circular opening of the housing, and a second arc-shaped wall is provided along the outer side of the second semi-circular opening of the front shell plate. The first and second arc-shaped walls form an annular wall, and the front grille is screwed onto the annular wall. The desktop fan's outer casing is composed of a housing and a front shell plate. The annular wall formed by the assembly of the housing and the front shell plate, combined with the front grille, connects and fixes the front shell plate to the housing, thus completing the installation of the outer casing. This provides convenience for both installation and disassembly, and the installation of the front shell plate to the housing does not use any screws.

Description

Technical Field

[0001] This utility model relates to a desktop fan. Background Technology

[0002] Desktop fans are typically placed on a table for use. Functionally, they are not much different from floor fans, but they are smaller and easier to store, making them especially suitable for single users. Currently, desktop fans on the market have a front and back shell that are assembled together and secured with screws. As a result, the back of the desktop fan has relatively obvious screws and screw holes, requiring a lot of screws. Moreover, when disassembling and repairing the fan, all the screws must be unscrewed one by one, which is a tedious process and makes it easy to lose screws.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned problems. We provide a desktop fan whose casing is easy to disassemble and assemble, and which does not use screws.

[0005] To achieve the above objectives, this utility model provides a desktop fan, which includes a base, a housing, a front shell plate, and a front grille. The bottom of the housing is connected and fixed to the base. An opening is opened on the front side of the housing. The front shell plate is assembled onto the opening and forms an installation cavity with the housing. A first semi-circular opening is opened on the front side of the housing, and a second semi-circular opening is opened on the front side of the front shell plate. The first semi-circular opening and the second semi-circular opening form an air outlet. A first arc-shaped wall is provided on the outer side of the first semi-circular opening of the housing, and a second arc-shaped wall is provided on the outer side of the second semi-circular opening of the front shell plate. The first arc-shaped wall and the second arc-shaped wall form an annular wall. The front grille is screwed onto the annular wall.

[0006] In one or more embodiments, the outer surface of the annular wall is provided with an external thread structure, and the inner wall of the front mesh cover is provided with an internal thread structure that mates with the external thread structure.

[0007] In one or more embodiments, the front side of the opening is provided with a protruding connecting portion, and the front shell plate is provided with a recess that mates with the protruding connecting portion.

[0008] In one or more embodiments, the base has a groove, and the bottom of the front shell plate is inserted into the groove, the depth of which is 1mm-2mm.

[0009] In one or more embodiments, the rear side of the housing is provided with an air intake grille, and the inner side of the housing is provided with a plurality of columns with threaded holes.

[0010] In one or more embodiments, the bottom surface of the base is provided with an anti-slip rubber pad.

[0011] Compared with the prior art, the advantages of this utility model are: the outer shell of the desktop fan is composed of a casing and a front shell plate. The annular wall formed by the assembly of the casing and the front shell plate is connected and fixed with the front grille, thereby fixing the front shell plate to the casing and completing the installation of the outer shell. It provides convenience for both installation and disassembly, and no screws are used to install the front shell plate and the casing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure after the housing and front shell plate are assembled in this embodiment;

[0013] Figure 2 This is a schematic diagram of the structure of the housing and front shell before assembly in this embodiment. Detailed Implementation

[0014] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0015] Please refer to Figure 1-2 This application provides a desktop fan, comprising a base 1, a housing 2, a front cover 3, and a front grille 4. The bottom of the housing 2 is connected and fixed to the base 1. The front side of the housing 2 has an opening, and the front cover 3 is fitted onto the opening and forms a mounting cavity with the housing. The front side of the housing 2 has a first semi-circular opening, and the front side of the front cover 3 has a second semi-circular opening. The first and second semi-circular openings form an air outlet. The housing 2 has a first arc-shaped wall 5 along the outer side of the first semi-circular opening, and the front cover 3 has a first arc-shaped wall 5 along the outer side of the second semi-circular opening. There is a second arc-shaped wall 6. The first arc-shaped wall 5 and the second arc-shaped wall 6 form an annular wall. The front mesh cover 4 is screwed onto the annular wall. After the front shell plate is installed on the window, the first arc-shaped wall and the second arc-shaped wall are joined together to form an annular wall. Then, the front shell plate is fixed to the housing by screwing the front mesh cover onto the annular wall, thus forming the outer shell of the desktop fan with the housing. The assembly of the front shell plate and the base is not fixed with screws, which can save a lot of screws and improve the assembly and disassembly efficiency, which is beneficial to the early assembly production and the later disassembly and maintenance.

[0016] The outer side of the annular wall is provided with an external thread structure 7, and the inner wall of the front mesh cover 4 is provided with an internal thread structure that mates with the external thread structure 7. During installation, the front mesh cover is fitted onto the annular wall, and then the front mesh cover is rotated.

[0017] The front side of the opening is provided with a protruding connecting part 8, and the front shell plate 3 is provided with a recess that mates with the protruding connecting part 8. The cooperation between the protruding connecting part and the recess can improve the structural tightness of the front shell plate 3 and the housing 1 after assembly.

[0018] The base 1 has a groove 9, and the bottom of the front shell plate 3 is inserted into the groove 9. The depth of the groove 9 is 1mm-2mm. In this solution, the groove depth is 1mm. Inserting the bottom of the front shell plate into the groove can improve the tightness of the connection structure between the front shell plate and the base, making the structure after the front shell plate is assembled more robust.

[0019] The rear side of the housing 2 is provided with an air inlet grille 10, which is opposite to the front mesh cover to facilitate smooth air intake and exhaust. The inner side of the housing 2 is provided with multiple columns 11 with threaded holes, which are used to install motors.

[0020] To improve the anti-slip effect of the desktop fan and prevent scratching the desktop, the bottom surface of the base 1 is provided with an anti-slip rubber pad.

[0021] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A desktop fan, characterized in that: The device includes a base (1), a housing (2), a front shell plate (3), and a front mesh cover (4). The bottom of the housing (2) is connected and fixed to the base (1). The front side of the housing (2) has an opening. The front shell plate (3) is assembled on the opening and forms an installation cavity with the housing. The front side of the housing (2) has a first semi-circular opening, and the front side of the front shell plate (3) has a second semi-circular opening. The first semi-circular opening and the second semi-circular opening form an air outlet. The housing (2) has a first arc-shaped wall (5) along the outer side of the first semi-circular opening, and the front shell plate (3) has a second arc-shaped wall (6) along the outer side of the second semi-circular opening. The first arc-shaped wall (5) and the second arc-shaped wall (6) form an annular wall. The front mesh cover (4) is screwed onto the annular wall.

2. A desktop fan according to claim 1, characterized in that: The outer side of the annular wall is provided with an external thread structure (7), and the inner wall of the front mesh cover (4) is provided with an internal thread structure that is connected to the external thread structure (7).

3. A desktop fan according to claim 1, characterized in that: The front side of the opening is provided with a protruding connecting part (8), and the front shell plate (3) is provided with a recess that mates with the protruding connecting part (8).

4. A desktop fan according to claim 1, characterized in that: The base (1) has a groove (9) and the bottom of the front shell plate (3) is inserted into the groove (9). The depth of the groove (9) is 1mm-2mm.

5. A desktop fan according to claim 1, characterized in that: The rear side of the housing (2) is provided with an air inlet grille (10), and the inner side of the housing (2) is provided with multiple columns (11) with threaded holes.

6. A desktop fan according to claim 1, characterized in that: The bottom surface of the base (1) is provided with an anti-slip rubber pad.

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