Backflow prevention fan structure and hair suction scissors

Abstract

The utility model relates to the field of hairdressing equipment, and discloses an anti-backflow fan structure and hair suction scissors, the anti-backflow fan structure comprises a motor, a wind wheel and a wind guide frame, the motor is connected with the wind wheel and drives the wind wheel to rotate, the wind guide frame is provided with a containing cavity, the wind wheel is contained in the containing cavity and rotates in the containing cavity, and a plurality of wind guide blades are distributed on the periphery of the wind guide frame at intervals. The air guide blades are arranged around the containing cavity and guide air generated by the air wheel, and air backflow is prevented. According to the anti-backflow fan structure, the air guiding blades are arranged to provide the guiding function, so that air in the containing cavity is prevented from flowing back and disorderly, the air force is more gathered, the air force output by the hair suction scissors is larger and smoother, the overall air suction effect is improved, and the user experience feeling is better.

Description

Technical Field

[0001] The utility model relates to the technical field of hairdressing equipment, in particular to a backflow prevention fan structure and a hair suction shear. Background Art

[0002] At present, the wind force of existing hair vacuum clippers is usually dispersed, and the backflow and turbulence in the wind force generated by the fan are more obvious, which makes the overall wind force output by the hair vacuum clippers smaller and more dispersed, resulting in poor hair suction effect and bad user experience. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model first provides an anti-backflow fan structure, including a motor, a wind wheel and an air guide frame, the motor is connected to the wind wheel and drives the wind wheel to rotate, the wind guide frame is provided with a accommodating cavity, the wind wheel is accommodated in the accommodating cavity and rotates in the accommodating cavity, a plurality of guide blades are distributed at intervals on the periphery of the wind guide frame, the guide blades are arranged around the accommodating cavity, and the guide blades provide guidance for the wind generated by the wind wheel to prevent wind backflow.

[0004] Optionally, the wind wheel includes fan blades, and one end of the wind wheel is provided with a flange toward the outward ring, the flange is located at the end of the fan blade away from the motor, and the flange is used to prevent backflow.

[0005] Optionally, an air outlet frame is further included, and an anti-flow ring is provided at one end of the air outlet frame, and the anti-flow ring surrounds the flange to prevent backflow.

[0006] Optionally, an air outlet is provided on the air outlet frame, and the air outlet is connected to the accommodating cavity to output the wind force generated by the wind wheel to the outside.

[0007] Optionally, a first connecting ring is provided at one end of the air guide frame, and one end of several of the air guide blades are fixedly connected to the first connecting ring. The anti-flow ring includes a first step and a second step. The first step surrounds the first connecting ring, and the second step abuts against the air guide blade at one end away from the first step to axially fix the air guide frame and the air outlet frame.

[0008] Optionally, the distance between the central axis of the air guide frame and the air guide blade is greater than the distance between the central axis of the air guide frame and the first connecting ring, and a limiting groove is provided on the anti-flow ring, and one end of the air guide blade is accommodated in the limiting groove to fix the air guide frame and the air outlet frame circumferentially.

[0009] Optionally, a filter is further included, and a limiting block is protruding from the air outlet frame, and the filter is limited between the limiting block and the first connecting ring.

[0010] Optionally, a mounting frame is further included, the motor is accommodated in the mounting frame, a second connecting ring is provided on the air guide frame, and the ends of several air guide blades close to the motor are fixedly connected to the second connecting ring, a buckle is radially protruded on the mounting frame, and a slot adapted to the buckle is provided on the second connecting ring so that the mounting frame and the air guide frame are snap-connected.

[0011] Optionally, a protruding mounting portion is provided on the mounting frame, and a mounting groove is recessed inwardly at one end of the wind wheel, the mounting portion is accommodated in the mounting groove, and the motor shaft of the motor extends out of the mounting portion and is connected to the mounting groove to drive the wind wheel to rotate.

[0012] Compared with the existing technology, the anti-backflow fan structure in the utility model provides a guiding function by setting up guide blades, thereby preventing wind backflow and turbulence in the accommodating cavity, making the wind force more concentrated, and the wind force output by the hair vacuum trimmer is larger and smoother, increasing the overall suction effect and providing a better user experience.

[0013] In addition, the utility model provides a hair clipper including the anti-backflow fan structure as described above.

[0014] Compared with the prior art, the hair clipper described in the present invention and the above-mentioned anti-backflow fan structure have the same advantages over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the anti-backflow fan structure of an embodiment of the present utility model;

[0016] Figure 2 This is an exploded view of the anti-backflow fan structure of an embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional view of the anti-backflow fan structure of the embodiment of the utility model Figure 1 ;

[0018] Figure 4 This is a cross-sectional view of the anti-backflow fan structure of the embodiment of the utility model Figure 2 ;

[0019] Figure 5 This is a structural diagram of a hair suction clipper according to an embodiment of the present utility model.

[0020] Description of reference numerals:

[0021] 1. Wind wheel; 11. Fan blade; 12. Flanged edge; 13. Mounting slot; 2. Wind guide frame; 21. Wind guide blade; 22. First connecting ring; 23. Second connecting ring; 231. Slot; 24. Accommodating chamber; 3. Air outlet frame; 31. Flow prevention ring; 311. First step; 312. Second step; 313. Limiting slot; 32. Air outlet; 33. Limiting block; 4. Filter; 5. Mounting frame; 51. Buckle; 52. Mounting part. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] The utility model provides a backflow prevention fan structure, combined with Figure 1-5 As shown, it includes a motor, a wind wheel 1 and an air guide frame 2. The motor is connected to the wind wheel 1 and drives the wind wheel 1 to rotate. The air guide frame 2 is provided with a receiving cavity 24. The wind wheel 1 is accommodated in the receiving cavity 24 and rotates in the receiving cavity 24. A plurality of air guide blades 21 are distributed at intervals on the periphery of the air guide frame 2. The air guide blades 21 are arranged around the receiving cavity 24. The air guide blades 21 provide guidance for the wind generated by the wind wheel 1 to prevent wind backflow.

[0026] like Figure 4 As shown, in this embodiment, the wind guide frame 2 is fixed, and the wind guide blades 21 are provided with curved side walls. When the wind wheel 1 rotates in the accommodating cavity 24, wind force is generated. During the process of backflow and turbulence in the accommodating cavity 24, the wind force touches the curved side walls. Under the guidance of the curved side walls, the backflow and turbulent wind force returns to the mainstream, thereby concentrating the wind force more, increasing the overall output wind force, and at the same time increasing the wind speed.

[0027] Compared with the prior art, the anti-backflow fan structure in the present invention provides a guiding function by setting the guide blades 21, thereby preventing the wind from flowing back and turbulently in the accommodating cavity 24, making the wind force more concentrated, and the wind force output by the hair clipper is larger and smoother, thereby increasing the overall suction effect and providing a better user experience.

[0028] The wind wheel 1 includes a fan blade 11. One end of the wind wheel 1 is provided with a flange 12 outwardly. The flange 12 is located at the end of the fan blade 11 away from the motor. The flange 12 is used to prevent backflow.

[0029] like Figure 2 and 3 As shown, in this embodiment, the flange 12 can prevent the wind from diffusing radially, making the wind direction more concentrated.

[0030] The anti-backflow fan structure further includes an air outlet frame 3 , one end of which is provided with an anti-flow ring 31 , which surrounds the flange 12 to prevent backflow.

[0031] like Figure 2 and 3 As shown, in this embodiment, the anti-flow ring 31 wraps the flange 12 to further prevent the radial diffusion of wind, making the wind direction more concentrated.

[0032] An air outlet 32 ​​is formed on the air outlet frame 3 , and the air outlet 32 ​​is connected to the accommodating cavity 24 to output the wind force generated by the wind wheel 1 to the outside.

[0033] like Figure 1 As shown, in this embodiment, a chamber for accommodating hair is provided at the air outlet 32 ​​to prevent the hair from completely blocking the air outlet 32 ​​.

[0034] like Figure 3 As shown, one end of the air guide frame 2 is provided with a first connecting ring 22, and one end of each of the air guide blades 21 is fixedly connected to the first connecting ring 22. The anti-flow ring 31 includes a first step 311 and a second step 312. The first step 311 surrounds the first connecting ring 22, and the end of the second step 312 away from the first step 311 abuts the air guide blade 21, thereby axially fixing the air guide frame 2 and the air outlet frame 3. The air guide frame 2 and the air outlet frame 3 are fixed and do not rotate.

[0035] like Figure 2 and 3 As shown, the distance between the central axis of the air guide frame 2 and the air guide vanes 21 is greater than the distance between the central axis of the air guide frame 2 and the first connecting ring 22. The flow prevention ring 31 is provided with a limiting groove 313, and one end of the air guide vanes 21 is accommodated in the limiting groove 313, thereby circumferentially fixing the air guide frame 2 and the air outlet frame 3. This arrangement makes the connection structure between the air guide frame 2 and the air outlet frame 3 more stable.

[0036] The anti-backflow fan structure further includes a filter 4 . A limiting block 33 is protruded from the air outlet frame 3 . The filter 4 is limited between the limiting block 33 and the first connecting ring 22 .

[0037] like Figure 1 As shown, in this embodiment, the filter 4 is connected to the air outlet 32, and the filter 4 is used to prevent the inhaled hair from being hinged into the wind wheel 1 and causing damage to the wind wheel 1.

[0038] The anti-backflow fan structure also includes a mounting frame 5, the motor is accommodated in the mounting frame 5, a second connecting ring 23 is provided on the air guide frame 2, and the ends of the plurality of air guide blades 21 close to the motor are fixedly connected to the second connecting ring 23, a buckle 51 is radially protruded on the mounting frame 5, and a slot 231 adapted to the buckle 51 is provided on the second connecting ring 23, so that the mounting frame 5 and the air guide frame 2 are snap-fitted.

[0039] like Figure 2 As shown, in this embodiment, the ends of the air guide blade 21 are connected to the first connecting ring 22 and the second connecting ring 23, respectively. The mounting frame 5 is fixed within the housing of the hair clipper and does not move. A protrusion is radially provided at the bottom of the mounting frame 5, and a groove is provided at the end of the second connecting ring 23 facing away from the first connecting ring 22. When the buckle 51 and the groove 231 engage, the protrusion is retained in the groove, preventing the mounting frame 5 from moving forward. The cooperation between the buckle 51 and the groove 231, and the cooperation between the protrusion and the groove, ensures that the mounting frame 5 and the air guide frame 2 are positioned both circumferentially and axially.

[0040] The mounting frame 5 is provided with a protruding mounting portion 52, and one end of the wind wheel 1 is provided with a recessed mounting groove 13, the mounting portion 52 is accommodated in the mounting groove 13, and the motor shaft of the motor extends out of the mounting portion 52 and is connected to the mounting groove 13 to drive the wind wheel 1 to rotate.

[0041] like Figure 2 and 3 As shown, in this embodiment, the motor is accommodated in the mounting portion 52, and then accommodated in the mounting groove 13 through the mounting portion 52. This arrangement saves more space and makes the structure more compact and stable.

[0042] like Figure 5 As shown, another embodiment of the present invention provides a hair clipper including the anti-backflow fan structure as described above.

[0043] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A backflow prevention fan structure, characterized in that: The invention comprises a motor, a wind wheel (1) and a wind guide frame (2), wherein the motor is connected to the wind wheel (1) and drives the wind wheel (1) to rotate, the wind guide frame (2) is provided with a receiving cavity (24), the wind wheel (1) is received in the receiving cavity (24) and rotates in the receiving cavity (24), and a plurality of wind guide blades (21) are distributed at intervals on the periphery of the wind guide frame (2), the wind guide blades (21) are arranged around the receiving cavity (24), and the wind guide blades (21) provide a guiding function for the wind generated by the wind wheel (1) to prevent wind backflow.

2. The anti-backflow fan structure according to claim 1, characterized in that: The wind wheel (1) comprises a fan blade (11), and one end of the wind wheel (1) is provided with a flange (12) extending outwardly, the flange (12) being located at an end of the fan blade (11) away from the motor, and the flange (12) is used to prevent backflow.

3. The anti-backflow fan structure according to claim 2, characterized in that: It also includes an air outlet frame (3), one end of which is provided with a flow prevention ring (31), and the flow prevention ring (31) surrounds the flange (12) to prevent backflow.

4. The anti-backflow fan structure according to claim 3, characterized in that: An air outlet (32) is provided on the air outlet frame (3), and the air outlet (32) is connected to the accommodating cavity (24) so ​​as to output the wind force generated by the wind wheel (1) outward.

5. The anti-backflow fan structure according to claim 3, characterized in that: One end of the air guide frame (2) is provided with a first connecting ring (22), one end of a plurality of the air guide blades (21) are fixedly connected to the first connecting ring (22), and the anti-flow ring (31) comprises a first step (311) and a second step (312), the first step (311) surrounds the first connecting ring (22), and the second step (312) abuts against the air guide blade (21) at one end away from the first step (311), so that the air guide frame (2) and the air outlet frame (3) are axially fixed.

6. The anti-backflow fan structure according to claim 5, characterized in that: The distance between the central axis of the air guide frame (2) and the air guide blade (21) is greater than the distance between the central axis of the air guide frame (2) and the first connecting ring (22); a limiting groove (313) is provided on the anti-flow ring (31); one end of the air guide blade (21) is accommodated in the limiting groove (313), so that the air guide frame (2) and the air outlet frame (3) are circumferentially fixed.

7. The anti-backflow fan structure according to claim 5, characterized in that: It also includes a filter (4), a limiting block (33) is protrudingly provided inside the air outlet frame (3), and the filter (4) is limited between the limiting block (33) and the first connecting ring (22).

8. The anti-backflow fan structure according to claim 1, characterized in that: The invention also includes a mounting frame (5), wherein the motor is accommodated in the mounting frame (5), a second connecting ring (23) is provided on the air guide frame (2), and one end of a plurality of air guide blades (21) close to the motor is fixedly connected to the second connecting ring (23), a buckle (51) is radially protruded on the mounting frame (5), and a slot (231) adapted to the buckle (51) is provided on the second connecting ring (23), so that the mounting frame (5) and the air guide frame (2) are connected to each other.

9. The anti-backflow fan structure according to claim 8, characterized in that: The mounting frame (5) is provided with a protruding mounting portion (52), one end of the wind wheel (1) is provided with a recessed mounting groove (13), the mounting portion (52) is accommodated in the mounting groove (13), and the motor shaft of the motor extends out of the mounting portion (52) and is connected to the mounting groove (13) to drive the wind wheel (1) to rotate.

10. A hair suction shear, characterized in that: It comprises the anti-backflow fan structure according to any one of claims 1 to 9.

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