Small fan for freshening air on desktop

Abstract

The utility model discloses a desktop air freshening small fan which comprises a fan shell, a rear net cover, a filter element net and a rear cover, the rear net cover is fixed on the inner side of the rear end of the fan shell, a filter element fixing ring is fixed on the rear cover, the filter element net is placed on the inner side of the filter element fixing ring, a clamping piece is formed on the inner side of the rear end of the fan shell, and a clamping groove is formed in the front end of the rear cover. And the clamping piece is clamped in the clamping groove. According to the small desktop air freshening fan, the filter element net is additionally arranged on the rear side of the fan shell, air sucked into the fan is freshened and filtered, dust and impurities are reduced, feasibility is achieved, when the fan shell shakes the head, the head can be electrically shaken or manually shaken, and the multifunctional requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan especially is a kind of desktop air freshener small fan. BACKGROUND

[0002] Conventional fan does not have filtering function, in daily life, in order to improve the use of product, product quality is often needed to be improved, people also consider whether the wind that blows is fresh and clean in the process of blowing, so the air that passes through fan needs to be filtered. INVENTION CONTENTS

[0003] One purpose of the utility model is to provide a kind of desktop air freshener small fan, to solve the problems existing in prior art.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A kind of desktop air freshener small fan, including fan shell, rear net cover, filter element net and rear cover, the rear net cover is fixed in the rear end inner side of the fan shell, the rear cover is fixed with filter element fixed ring, the filter element net is placed in the inner side of the filter element fixed ring, the rear end inner side of the fan shell is formed with clamping piece, the front end of the rear cover is provided with clamping groove, the clamping piece is clamped in the clamping groove.

[0006] As a preferred technical scheme, the middle part of the fan shell is installed with fan blade, the middle part of the fan blade is installed with fan blade motor, the fan blade motor driving end drives the fan blade to rotate.

[0007] As a preferred technical scheme, the inside of the fan shell is installed with fan blade shell, the fan blade shell covers the front end of the fan blade.

[0008] As a preferred technical scheme, the front end of the fan shell is provided with front cover, the outer side of the front cover is provided with elastic protrusion, the front end inner side of the fan shell is provided with recess, the elastic protrusion is clamped into the recess, the middle part of the front cover is installed with control circuit board, the control circuit board is electrically connected with the fan blade motor.

[0009] As a preferred technical scheme, the control circuit board is covered with cover plate, the cover plate passes through the front cover and is clamped with the fan blade shell.

[0010] As a preferred technical scheme, the lower end of the fan shell is provided with base, the middle part of the base is swing-connected with arc-shaped support, the two sides of the fan shell are connected on the arc-shaped support.

[0011] As a preferred technical scheme, the inside of the base is internally provided with a shell motor, a gear is connected to the driving end of the shell motor, a bearing is installed in the middle of the base, the gear is fixedly connected to the lower end of the arc-shaped support after penetrating through the bearing, a switch plate is installed in the inside of the base, and the switch plate is in elastic contact with the gear teeth.

[0012] As a preferred technical scheme, the inside of the base is internally provided with a battery and a control panel, the battery is electrically connected with the shell motor, a key is elastically installed on the control panel, and the key protrudes on the base.

[0013] As a preferred technical scheme, the lower end of the base is provided with a bottom shell, and the bottom shell is screw-locked with the base.

[0014] The table air freshening small fan has the advantages that the filter element net is added to the rear side of the fan shell, air inhaled in the fan is filtered to reduce dust and impurities, the table air freshening small fan has feasibility, the fan shell can be electrically or manually shaken when shaking, and the multifunctional requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail in the basis of drawings and examples.

[0016] Figure 1 The rear end structure diagram of the table air freshening small fan of the example is shown in the figure.

[0017] Figure 2 The front end structure diagram of the table air freshening small fan of the example is shown in the figure.

[0018] Figure 3 The explosion view of the table air freshening small fan of the example is shown in the figure.

[0019] Figure 4 The rear side partial structure diagram of the table air freshening small fan of the example is shown in the figure.

[0020] Figure 5 The inside structure diagram of the lower end of the table air freshening small fan of the example is shown in the figure.

[0021] Figures 1 to 5 The table air freshening small fan has the advantages that the filter element net is added to the rear side of the fan shell, air inhaled in the fan is filtered to reduce dust and impurities, the table air freshening small fan has feasibility, the fan shell can be electrically or manually shaken when shaking, and the multifunctional requirement is met.

[0022] 1. Fan housing; 2. Rear grille; 3. Filter screen; 4. Rear cover; 5. Filter retaining ring; 6. Slot; 7. Fan blade; 8. Fan blade motor; 9. Fan blade housing; 10. Front cover; 11. Elastic protrusion; 12. Groove; 13. Control circuit board; 14. Cover plate; 15. Base; 16. Arc-shaped support; 17. Housing motor; 18. Gear; 19. Bearing; 20. Paddle shifter; 21. Battery; 22. Control board; 23. Button; 24. Bottom shell. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 5 As shown in this embodiment, a desktop air-purifying fan includes a fan housing 1, a rear mesh cover 2, a filter screen 3, and a rear cover 4. The rear mesh cover 2 is fixed to the inner rear end of the fan housing 1. A filter screen fixing ring 5 is fixed on the rear cover 4. The filter screen 3 is placed inside the filter screen fixing ring 5. A clip is formed on the inner rear end of the fan housing 1. A slot 6 is provided at the front end of the rear cover 4. The clip is engaged in the slot 6. A fan blade 7 is installed in the middle of the fan housing 1. A fan blade motor 8 is installed in the middle of the fan blade 7. The fan blade motor 8 drives the fan blade 7 to rotate.

[0025] After the fan motor 8 starts, it controls the fan blade 7 to rotate inside the fan housing 1, creating a blowing effect. During the air intake process, the air enters from the rear cover 4, is filtered by the filter core mesh 3, passes through the rear mesh cover 2, and reaches the position of the fan blade 7. In this process, impurities and dust are removed, making the air blown out from the fan blade 7 clean and fresh. The rear cover 4 can be unscrewed to remove or install it from the fan housing 1.

[0026] Inside the fan housing 1 is a fan blade shell 9, which covers the front end of the fan blade 7 and effectively protects the rotation of the fan blade 7.

[0027] In addition, a front cover 10 is provided at the front end of the fan housing 1. An elastic protrusion 11 is provided on the outer side of the front cover 10. A groove 12 is provided on the inner side of the front end of the fan housing 1. The elastic protrusion 11 is inserted into the groove 12. A control circuit board 13 is installed in the middle of the front cover 10. The control circuit board 13 is electrically connected to the fan blade motor 8. A cover plate 14 is placed on the control circuit board 13. The cover plate 14 passes through the front cover 10 and is snapped and fixed to the fan blade housing 9. The control circuit board 13 is installed in the front cover 10, which can effectively control the start and stop of the fan blade motor 8. The cover plate 14 is used to protect the control circuit board 13 in the front cover 10.

[0028] The lower end of the fan shell 1 is provided with a base 15, the middle part of the base 15 is swing-connected with an arc-shaped support 16, the two sides of the fan shell 1 are connected on the arc-shaped support 16, the inside of the base 15 is installed with a shell motor 17, the driving end of the shell motor 17 is connected with a gear 18, the middle part of the base 15 is installed with a bearing 19, the gear 18 is fixedly connected with the lower end of the arc-shaped support 16 after passing through the bearing 19, the inside of the base 15 is installed with a push piece 20, the push piece 20 is in elastic contact with the gear teeth of the gear 18.

[0029] The shell motor 17 controls the fan blade 7 to form the blowing of 180° direction through the swing angle of 90° left and right, and the fan shell 1 can also be manually rotated to generate the mechanical rotation angle sound of "click" between the push piece 20 and the gear 18

[0030] The inside of the base 15 is provided with a battery 21 and a control board 22, the battery 21 is electrically connected with the shell motor 17, the control board 22 is elastically installed with a button 23, the button 23 is protruded on the base 15, the battery 21 supplies power to the control board 22 and the shell motor 17, and the button 23 is responsible for the control of the control board 22.

[0031] The lower end of the base 15 is installed with a bottom shell 24, the bottom shell 24 is screw-locked between the base 15, and the bottom shell 24 protects the battery 21, the shell motor 17 and the control board 22 in the inside of the base 15.

[0032] It should be stated that the above specific embodiments are only the preferred embodiments of the utility model and the applied technical principles, and any changes or replacements easily thought by any skilled in the art in the technical range disclosed by the utility model should be covered in the protection range of the utility model.

Claims

1. A table air freshening fan, characterized by, Including fan shell, rear net cover, filter core net and rear cover, the rear net cover is fixed in the rear end of the fan shell inside, the rear cover is fixed with filter core fixed ring, the filter core net is placed in the inside of the filter core fixed ring, the rear end of the fan shell is formed with clamping piece, the front end of the rear cover is provided with clamping groove, the clamping piece is clamped in the clamping groove.

2. The table air freshener fan of claim 1, wherein, The middle part of the fan shell is provided with a fan blade, and the middle part of the fan blade is provided with a fan blade motor.

3. The table air freshener fan of claim 2, wherein, The inside of the fan shell is provided with a fan blade shell, which covers the front end of the fan blade.

4. The table air freshener fan of claim 3, wherein, The front end of the fan shell is provided with a front cover, the outside of the front cover is provided with an elastic protrusion, the inside of the front end of the fan shell is provided with a groove, the elastic protrusion is clamped into the groove, the middle part of the front cover is provided with a control circuit board, and the control circuit board is electrically connected with the fan blade motor.

5. The table air freshener fan of claim 4, wherein, The control circuit board is covered with a cover plate, the cover plate is clamped and fixed with the fan blade shell through the front cover.

6. The table air freshener fan of claim 1, wherein, The lower end of the fan shell is provided with a base, the middle part of the base is swing connected with an arc-shaped support, and the two sides of the fan shell are connected on the arc-shaped support.

7. The table air freshener fan of claim 6, wherein, The inside of the base is provided with a shell motor, the driving end of the shell motor is connected with a gear, the middle part of the base is provided with a bearing, the gear is fixedly connected with the lower end of the arc-shaped support after penetrating through the bearing, and the inside of the base is provided with a tab.

8. The table air freshener fan of claim 7, wherein, The inside of the base is provided with a battery and a control board, the battery is electrically connected with the shell motor, the control board is elastically mounted with a key, and the key is outwardly protruded on the base.

9. The table air freshener fan of claim 6, wherein, The lower end of the base is provided with a bottom shell, and the bottom shell is screw locked with the base.

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