Hair drier capable of preventing air port from being blocked and overheated

Abstract

The utility model discloses a hair dryer preventing air port from being blocked and overheated, which comprises a hair dryer body consisting of a blowing head part and a handle part, a filter screen cover is arranged at the bottom end of the handle part, a protective shell covering the filter screen cover is detachably arranged at the bottom end of the handle part, an air speed sensor is arranged at the bottom end of the inner wall of the handle part, and the air speed sensor is arranged at the bottom end of the inner wall of the handle part. And a plurality of air holes are formed in the surface of the protective shell. According to the air blower capable of preventing the air opening from being blocked and overheated, the motor works, a gear is driven to rotate through connection of a rotating rod, then through transmission of an inner gear ring, a circular ring can be driven to rotate, then a brush rod is driven to rotate, and after bristles on the surface of the brush rod make contact with the inner wall face of a filter screen cover to rotate, the filter screen cover can be cleaned; the situation that the electric heating element in the blower head part is overheated due to wind speed reduction is avoided, and then the service life of the blower body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, and particularly relates to a hair dryer for preventing the air outlet from being blocked and overheated. Background Art

[0002] A hair dryer is an electrical appliance mainly used to quickly dry or style hair by blowing hot air or cold air. A hair dryer usually consists of components such as a motor, a fan, an electric heating element, a housing, and a switch. The motor drives the fan to rotate to generate an air flow, and the electric heating element (such as an electric heating wire) heats the air flow to generate hot air. By adjusting the switch, the wind force and temperature can be controlled.

[0003] Generally, the structure of a hair dryer arranges the electric heating wire, the fan, the air inlet, and the air outlet in a straight line for the direct flow of air. However, this structure is prone to block the air inlet with hair strands, making the hair dryer unable to be used normally. Some hair dryers have been structurally improved, mainly by changing the position of the air inlet to the bottom of the handle. However, for this type of hair dryer, during long-term use, dust and impurities are likely to adhere to the surface of the internal filter screen of the air inlet, reducing the air intake rate of the air outlet, and thus easily leading to overheating of the electric heating element, accelerating the aging rate of the hair dryer, and shortening the service life of the hair dryer.

[0004] Therefore, how to achieve this is an urgent technical problem in the industry. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a hair dryer for preventing the air outlet from being blocked and overheated, aiming at the problem that dust and impurities are likely to adhere to the surface of the internal filter screen of the air inlet of the hair dryer, reducing the air intake rate of the air outlet, and thus easily leading to overheating of the electric heating element.

[0006] The utility model provides a hair dryer for preventing the air outlet from being blocked and overheated, which includes a hair dryer body composed of a blowing head and a handle part. A filter screen cover is arranged at the bottom end of the handle part, and a protective shell covering the outside of the filter screen cover is detachably arranged at the bottom end of the handle part. A wind speed sensor is arranged at the bottom end of the inner wall of the handle part, and a plurality of ventilation holes are formed on the surface of the protective shell;

[0007] A rotating ring is arranged at the bottom end of the inner cavity of the handle part through a driving mechanism. A brush rod is vertically and fixedly connected to the bottom of the ring, and the bottom end of the brush rod extends to the bottom of the inner cavity of the filter screen cover. The bristles on the surface of the brush rod are in contact with the inner wall surface of the filter screen cover.

[0008] Preferably, a limiting convex ring is fixedly connected to the outer surface of the ring, and a limiting ring groove adapted to the limiting convex ring is formed at the bottom end of the inner wall of the handle part. The limiting convex ring is embedded in the internal part of the limiting ring groove.

[0009] Preferably, a first magnet is embedded at the top of the protective shell, and a second magnet attracted to the first magnet is embedded at the bottom end of the handle portion.

[0010] Preferably, the driving mechanism includes a housing fixedly connected to the bottom end of the inner wall of the handle portion. A motor is disposed inside the housing. The output shaft of the motor is fixedly connected to a rotating rod. The bottom end of the rotating rod extends to the outside of the housing and is fixedly connected to a gear. An internal gear ring meshing with the gear is fixedly connected to the inner wall surface of the ring.

[0011] Preferably, a plurality of reinforcing ribs are fixedly connected between the top end of the brush rod and the lower surface of the ring. The plurality of reinforcing ribs are evenly spaced and distributed annularly along the surface of the brush rod.

[0012] Preferably, the plurality of ventilation holes are evenly spaced and distributed along the surface of the protective shell.

[0013] In the present utility model, the fan inside the handle portion is monitored by a wind speed sensor. When the wind speed inside the monitored handle portion decreases, the motor works. By means of the connection of the rotating rod, the gear is driven to rotate. Then, through the transmission of the internal gear ring, the ring can be driven to rotate, and further the brush rod is driven to rotate. After the bristles on the surface of the brush rod contact and rotate with the inner wall surface of the filter mesh cover, the filter mesh cover can be cleaned, and dust can be removed. Furthermore, the air intake rate of the filter mesh cover is increased, and the situation that the electric heating element inside the blowing head overheats due to the decrease in wind speed is avoided, thereby improving the protection of the electrical components inside the hair dryer body, and further prolonging the service life of the hair dryer body. During use, after the first magnet and the second magnet come into contact, they attract each other, so that the protective shell covers the outside of the filter mesh cover to protect the filter mesh cover. Moreover, through the provided ventilation holes, larger particle impurities are prevented from adhering to the surface of the filter mesh cover, and during the cleaning process, dust can be discharged through the ventilation holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the front embodiment of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the hair dryer body and the protective shell of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the handle portion and the housing of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the motor and the gear of the present utility model;

[0018] Figure 5 For the present utility model Figure 3 Partial enlarged view at A.

[0019] In the figure: 1, hair dryer body; 2, blowing head; 3, handle part; 4, filter net cover; 5, protective shell; 6, ventilation holes; 7, ring; 8, outer shell; 9, motor; 10, rotating rod; 11, gear; 12, internal gear ring; 13, limiting convex ring; 14, limiting ring groove; 15, brush rod; 16, wind speed sensor; 17, first magnet; 18, second magnet.

[0020] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0021] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Referring to Figures 1-5 , an embodiment of the present utility model is proposed. A hair dryer for preventing the air outlet from being blocked and overheated includes a hair dryer body 1 composed of a blowing head 2 and a handle part 3. A filter net cover 4 is provided at the bottom end of the handle part 3. A protective shell 5 covering the outside of the filter net cover 4 is detachably provided at the bottom end of the handle part 3. A wind speed sensor 16 is provided at the bottom end of the inner wall of the handle part 3. A plurality of ventilation holes 6 are opened on the surface of the protective shell 5.

[0023] A rotating ring 7 is provided at the bottom end of the inner cavity of the handle part 3 through a driving mechanism. A brush rod 15 is vertically and fixedly connected to the bottom of the ring 7.

[0024] The bottom end of the brush rod 15 extends to the bottom of the inner cavity of the filter net cover 4, and the bristles on the surface of the brush rod 15 are in contact with the inner wall surface of the filter net cover 4.

[0025] The wind speed sensor 16 monitors the fan inside the handle part 3. When it monitors that the wind speed inside the handle part 3 decreases, the driving mechanism works to drive the ring 7 to rotate, and then drives the brush rod 15 to rotate. After the bristles on the surface of the brush rod 15 are in contact with the inner wall surface of the filter net cover 4 and rotate, the filter net cover 4 can be cleaned.

[0026] The dust on the surface of the filter net cover 4 is removed, thereby improving the air intake rate of the filter net cover 4, avoiding the situation that the wind speed decreases and causes the heating element inside the blowing head 2 to overheat, improving the protection of the electrical components inside the hair dryer body 1, and thus prolonging the service life of the hair dryer body 1.

[0027] Furthermore, a limiting convex ring 13 is fixedly connected to the outer surface of the ring 7, and a limiting ring groove 14 adapted to the limiting convex ring 13 is opened at the bottom end of the inner wall of the handle part 3, and the limiting convex ring 13 is embedded inside the limiting ring groove 14.

[0028] During the rotation of the circular ring 7, the limiting convex ring 13 is driven to rotate inside the limiting ring groove 14 to guide and limit the movement of the circular ring 7.

[0029] Furthermore, a first magnetic block 17 is embedded at the top of the protective shell 5, and a second magnetic block 18 attracted to the first magnetic block 17 is embedded at the bottom end of the handle portion 3.

[0030] During use, after the first magnetic block 17 and the second magnetic block 18 come into contact, they attract each other, so that the protective shell 5 covers the outside of the filter mesh 4 to protect the filter mesh 4. And through the provided air holes 6, larger particulate impurities are prevented from adhering to the surface of the filter mesh 4, and during the cleaning process, dust can be discharged through the air holes 6.

[0031] Furthermore, the driving mechanism includes a housing 8, the housing 8 is fixedly connected to the bottom end of the inner wall of the handle portion 3, a motor 9 is arranged inside the housing 8, the output shaft of the motor 9 is fixedly connected with a rotating rod 10, the bottom end of the rotating rod 10 extends to the outside of the housing 8 and is fixedly connected with a gear 11, and an internal gear ring 12 meshing with the gear 11 is fixedly connected to the inner wall surface of the circular ring 7.

[0032] When the motor 9 works, by means of the connection of the rotating rod 10, the gear 11 is driven to rotate, and then through the transmission of the internal gear ring 12, the circular ring 7 can be driven to rotate, and then the brush rod 15 can be driven to rotate.

[0033] Furthermore, a plurality of reinforcing ribs are fixedly connected between the top end of the brush rod 15 and the lower surface of the circular ring 7, and the plurality of reinforcing ribs are evenly spaced and arranged annularly along the surface of the brush rod 15.

[0034] Furthermore, a plurality of air holes 6 are evenly spaced and arranged along the surface of the protective shell 5.

[0035] During operation, the wind speed sensor 16 monitors the fan inside the handle portion 3. When it monitors that the wind speed inside the handle portion 3 decreases, the motor 9 works. By means of the connection of the rotating rod 10, the gear 11 is driven to rotate, and then through the transmission of the internal gear ring 12, the circular ring 7 can be driven to rotate, and then the brush rod 15 can be driven to rotate. After the bristles on the surface of the brush rod 15 contact and rotate with the inner wall surface of the filter mesh 4, the filter mesh 4 can be cleaned and the dust can be removed, thereby improving the air intake rate of the filter mesh 4, avoiding the situation that the electric heating element inside the blowing head 2 overheats due to the decrease in wind speed, improving the protection of the electrical components inside the hair dryer body 1, and thus extending the service life of the hair dryer body 1.

[0036] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A hair dryer for preventing the air outlet from being blocked and overheated, comprising a hair dryer body (1) composed of a blowing head (2) and a handle part (3), characterized in that, A filter net cover (4) is provided at the bottom end of the handle portion (3). A protective shell (5) covering the outside of the filter net cover (4) is detachably provided at the bottom end of the handle portion (3). A wind speed sensor (16) is provided at the bottom end of the inner wall of the handle portion (3). A plurality of ventilation holes (6) are formed on the surface of the protective shell (5). A rotating ring (7) is provided at the bottom end of the inner cavity of the handle portion (3) through a driving mechanism. A brush rod (15) is vertically fixedly connected to the bottom of the ring (7). The bottom end of the brush rod (15) extends to the bottom of the inner cavity of the filter net cover (4). The bristles on the surface of the brush rod (15) are in contact with the inner wall surface of the filter net cover (4).

2. The hair dryer for preventing tuyere blockage and overheating according to claim 1, characterized in that A limiting convex ring (13) is fixedly connected to the outer surface of the ring (7). A limiting ring groove (14) adapted to the limiting convex ring (13) is formed at the bottom end of the inner wall of the handle portion (3). The limiting convex ring (13) is embedded in the limiting ring groove (14).

3. The hair dryer for preventing the air outlet from being blocked and overheated according to claim 1, characterized in that, A first magnet (17) is embedded at the top of the protective shell (5). A second magnet (18) attracted to the first magnet (17) is embedded at the bottom end of the handle portion (3).

4. The hair dryer for preventing tuyere blockage and overheating according to claim 1, characterized in that, The driving mechanism includes a housing (8). The housing (8) is fixedly connected to the bottom end of the inner wall of the handle portion (3). A motor (9) is provided inside the housing (8). The output shaft of the motor (9) is fixedly connected to a rotating rod (10). The bottom end of the rotating rod (10) extends outside the housing (8) and is fixedly connected to a gear (11). An internal gear ring (12) meshing with the gear (11) is fixedly connected to the inner wall surface of the ring (7).

5. The hair dryer for preventing tuyere blockage and overheating according to claim 1, characterized in that, A plurality of reinforcing ribs are fixedly connected between the top end of the brush rod (15) and the lower surface of the ring (7). The plurality of reinforcing ribs are evenly spaced in a circular pattern along the surface of the brush rod (15).

6. The hair dryer for preventing the air outlet from being blocked and overheated according to claim 1, wherein The plurality of ventilation holes (6) are evenly spaced along the surface of the protective shell (5).

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