A detachable hair filter for a hair dryer

CN224853126UActive Publication Date: 2026-10-16DONGGUAN LESCOTON MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202522488019.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-10-16
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

这种固定结构的滤网在实际使用中存在明显的缺陷:由于头发等毛发极易附着在滤网上,长期使用后滤网表面会堆积大量毛发和灰尘,导致进风效率降低,进而使吹风机的风力下降、加热速度变慢,不仅影响使用体验,还会增加电机负载,缩短吹风机的使用寿命

Benefits of technology

1、该吹风机的可拆式毛发滤网,通过向引导部一侧转动毛发滤网,可以使得若干斜面卡块沿引导部的斜面逐渐向安装套筒内壁挤压,使其最终脱出卡接部,实现脱离,从而方便拆卸毛发滤网进行清理,无需多余的解锁动作,只需转动毛发滤网拉出即可,方便操作。

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Abstract

The utility model relates to hair filter screen technical field, especially a detachable hair filter screen of hair drier, including hair drier air trunk, the tail part air inlet of hair drier air trunk is fixedly connected with the installation sleeve, the inside wall detachable of installation sleeve has the hair filter screen of jointing, the inside wall side of installation sleeve is provided with a plurality of bayonet, the inside wall side of installation sleeve is provided with a plurality of guide channel. The utility model has the advantages of: through the rotation hair filter screen to guide part one side, can make a plurality of inclined surface clamping blocks gradually extrude to the inside wall of installation sleeve along the inclined surface of guide part, make it finally break out jointing part, realize separation, thereby conveniently dismounting hair filter screen and cleaning, need not the unlocking action of redundancy, only need to rotate hair filter screen and pull out, convenient operation, through the guide of guide channel can make inclined surface clamping blocks along the linear to bayonet push, make inclined surface clamping blocks guide push to the position of bayonet, in order to accurate clamping to the position of bayonet, convenient installation positioning, convenient operation.
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Description

Technical Field

[0001] This utility model relates to the field of hair filter technology, and in particular to a detachable hair filter for a hair dryer. Background Technology

[0002] Hair dryers, a common personal care appliance, work by using a motor to drive a fan, drawing air in through the air inlet, heating it with a heating element, and then blowing it out through the air outlet to dry hair. To prevent hair, dust, and other debris from being sucked into the motor and causing damage or affecting safety, a filter is usually installed at the air inlet during use.

[0003] Currently, most hair dryers on the market use fixed-installation filters, such as those connected to the hair dryer housing through welding, bonding, or one-piece molding. This fixed filter structure has significant drawbacks in practical use: because hair and other frizz easily adhere to the filter, a large amount of hair and dust accumulates on the filter surface after prolonged use, reducing airflow efficiency. This, in turn, reduces the hair dryer's airflow and slows down heating, affecting the user experience, increasing the motor load, and shortening the hair dryer's lifespan. More importantly, if the accumulated hair is not cleaned regularly, it poses a fire hazard in high-temperature environments. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a detachable hair filter for a hair dryer, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a detachable hair filter for a hair dryer, including a hair dryer barrel. A mounting sleeve is fixedly connected to the air inlet at the tail end of the hair dryer barrel. A hair filter is detachably snapped onto the inner wall of the mounting sleeve. Several slots and guide channels are provided on the side of the inner wall of the mounting sleeve. One bottom end of each guide channel communicates with the middle of the inner wall of one of the slots. The top of each guide channel extends beyond the outside of the mounting sleeve. Several rod-shaped springs are fixedly connected to the edge of the hair filter. An inclined block is fixedly connected to one end of each rod-shaped spring away from the hair filter. The rod-shaped springs and inclined blocks are respectively positioned relative to the slots. When the rod-shaped springs are reset, they can respectively engage with the positions of the inner walls of the guide channels. Each slot includes a snap-fit ​​portion and a guide portion. The guide portion has an inclined structure, one side of which is tangent to the inner wall of the snap-fit ​​portion, and the outer side of the guide portion is connected to the inner wall of the mounting sleeve.

[0006] Preferably, in any of the above embodiments, the diameter of the hair filter is adapted to the diameter of the inner wall of the mounting sleeve, and a plurality of rotating wrenches are fixedly connected to the middle of the outer wall of the hair filter, and the plurality of rotating wrenches are arranged in a radial ring array around the center of the hair filter.

[0007] The technical effect achieved by adopting the above solution is that the hair filter can completely block and filter the hair in the air inlet of the hair dryer, and the hair filter can be easily disassembled by rotating several wrenches.

[0008] Preferably, in any of the above solutions, the position of the center of the snap-fit ​​portion corresponds to the position of the center of the guide channel.

[0009] The technical effect achieved by adopting the above solution is that the inclined block can be accurately slid to the position of the locking part under the guidance of the guide channel.

[0010] Preferably, in any of the above embodiments, the length of the inclined block protruding from the outside of the rod-shaped spring is adapted to the depth of the inner wall of the bayonet, the vertical height of the inclined block is adapted to the vertical height of the bayonet, and the outer side of the inclined block is an arc surface that can fit against the inner wall of the bayonet.

[0011] The technical effect achieved by adopting the above solution is that the inclined block can be stably inserted into the inside of the slot, and the arc surface of the inclined block can guide the block to slide towards the guide part.

[0012] Preferably, in any of the above embodiments, an annular blocking flange is fixedly connected to the inner wall of the mounting sleeve near the bottom of the bayonet, one side of the annular blocking flange corresponds to the edge of the bottom of the bayonet, and the bottom end of the inclined block is pressed against the annular blocking flange when it is fully engaged in the bayonet.

[0013] The technical effect achieved by adopting the above solution is that the annular blocking flange can limit the inward pushing position of the inclined block, which facilitates positioning and prevents pushing too deep.

[0014] This utility model has the following advantages: 1. The hair dryer features a detachable hair filter. By rotating the hair filter towards the guide section, several inclined blocks are gradually pressed against the inner wall of the mounting sleeve along the inclined surface of the guide section, eventually disengaging from the locking part. This allows for easy removal and cleaning of the hair filter without any additional unlocking action; simply rotate the hair filter and pull it out for convenient operation.

[0015] 2. The hair filter of this hair dryer is guided by a guide channel, which allows the inclined block to be pushed in a straight line towards the slot. This ensures that the inclined block is pushed to the position of the slot, so that it can be accurately locked in place, making installation and positioning convenient and easy to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 This utility model Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the structure of the hair filter of this utility model.

[0017] In the diagram: 1-Hair dryer nozzle, 2-Mounting sleeve, 3-Guide channel, 4-Hair filter, 5-Rod spring, 6-Beveled locking block, 7-Bayonet, 71-Snap-fit ​​part, 72-Guide part, 8-Annular blocking flange, 9-Rotating wrench. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0019] like Figures 1 to 5 As shown, a detachable hair filter for a hair dryer includes a hair dryer barrel 1. A mounting sleeve 2 is fixedly connected to the air inlet at the tail end of the hair dryer barrel 1. A hair filter 4 is detachably snapped onto the inner wall of the mounting sleeve 2. Several slots 7 and several guide channels 3 are formed on the side of the inner wall of the mounting sleeve 2. One bottom end of each guide channel 3 communicates with the middle of the inner wall of each slot 7, and the top of each guide channel 3 extends through the outside of the mounting sleeve 2. The edge of the hair filter 4 is fixed... A number of rod-shaped springs 5 ​​are fixedly connected. The ends of the rod-shaped springs 5 ​​away from the hair filter screen 4 are all fixedly connected to inclined blocks 6. The positions of the rod-shaped springs 5 ​​and the inclined blocks 6 are respectively with the positions of the slots 7. When the rod-shaped springs 5 ​​are reset, they can respectively fit into the positions of the inner walls of the guide channels 3. Each slot 7 includes a snap-fit ​​part 71 and a guide part 72. The guide part 72 has an inclined structure. One side of the guide part 72 is tangent to the inner wall of the snap-fit ​​part 71, and the outer side of the guide part 72 is connected to the inner wall of the mounting sleeve 2.

[0020] As an optional technical solution of this utility model, the diameter of the hair filter 4 is adapted to the diameter of the inner wall of the mounting sleeve 2. Several rotating wrenches 9 are fixedly connected to the middle of the outer wall of the hair filter 4. The several rotating wrenches 9 are arranged in a radial ring array around the center of the hair filter 4, so that the hair filter 4 can completely block and filter the hair in the air inlet of the hair dryer 1. The several rotating wrenches 9 make it convenient to rotate the hair filter 4 for disassembly.

[0021] As an optional technical solution of this utility model, the position of the center of the locking part 71 corresponds to the position of the center of the guide channel 3, so that the inclined locking block 6 can slide accurately to the position of the locking part 71 under the guidance of the guide channel 3.

[0022] As an optional technical solution of this utility model, the length of the inclined block 6 protruding from the outside of the rod-shaped spring 5 is adapted to the depth of the inner wall of the bayonet 7, the vertical height of the inclined block 6 is adapted to the vertical height of the bayonet 7, the outer side of the inclined block 6 is an arc surface and can fit against the inner wall of the bayonet 7, so that the inclined block 6 can be stably inserted into the interior of the bayonet 7, and the arc surface of the inclined block 6 can guide the block 6 to slide towards the guide part 72.

[0023] As an optional technical solution of this utility model, an annular blocking flange 8 is fixedly connected to the inner wall of the mounting sleeve 2 near the bottom of the bayonet 7. One side of the annular blocking flange 8 corresponds to the edge of the bottom of the bayonet 7. When the inclined block 6 is fully inserted into the bayonet 7, its bottom end is pressed against the annular blocking flange 8. By blocking and limiting the position of the annular blocking flange 8, the position of the inclined block 6 pushed inward can be restricted, which facilitates positioning and prevents it from being pushed too deep.

[0024] The hair dryer has a removable hair filter. The following steps are required to use it: 1) Guided by the guide channel 3, the inclined block 6 can be pushed along a straight line towards the slot 7, so that the inclined block 6 is guided to the position of the slot 7, and the rebound thrust of the rod spring 5 pushes the inclined block 6 to be precisely locked into the position of the slot 7; 2) By rotating the hair filter 4 towards one side of the guide part 72, several inclined blocks 6 can be gradually pressed along the inclined surface of the guide part 72 towards the inner wall of the mounting sleeve 2, so that they eventually disengage from the locking part 71. 3) Then pull out the hair filter 4 to clean it.

[0025] In summary, by rotating the hair filter 4 towards the guide part 72, several inclined blocks 6 can be gradually pressed against the inner wall of the mounting sleeve 2 along the inclined surface of the guide part 72, eventually disengaging from the locking part 71 and detaching. This facilitates the removal and cleaning of the hair filter 4 without any additional unlocking action; simply rotate the hair filter 4 and pull it out. This is convenient to operate. The guide channel 3 guides the inclined blocks 6 to be pushed along a straight line towards the locking slot 7, ensuring that the inclined blocks 6 are precisely locked into the position of the locking slot 7. This facilitates installation and positioning and makes operation easier.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable hair filter for a hair dryer, characterized in that: The device includes a hair dryer nozzle (1), with a mounting sleeve (2) fixedly connected to the air inlet at the tail end of the hair dryer nozzle (1). A hair filter (4) is detachably snapped onto the inner wall of the mounting sleeve (2). Several slots (7) are provided on the side of the inner wall of the mounting sleeve (2), and several guide channels (3) are provided on the side of the inner wall of the mounting sleeve (2). One end of the bottom of each of the guide channels (3) is connected to the middle of the inner wall of each of the slots (7), and the top of each of the guide channels (3) extends through the outside of the mounting sleeve (2). Several rod-shaped springs (5) are fixedly connected to the edge of the hair filter (4). Each of the rod springs (5) is fixedly connected to a sloping block (6) at one end away from the hair filter (4). The rod springs (5) and the sloping blocks (6) are respectively positioned with the slots (7). When the rod springs (5) are reset, they can respectively fit into the inner wall of the guide channel (3). Each slot (7) includes a snap-fit ​​part (71) and a guide part (72). The guide part (72) is a sloping structure. One side of the guide part (72) is tangent to the inner wall of the snap-fit ​​part (71). The outer side of the guide part (72) is connected to the inner wall of the mounting sleeve (2).

2. The detachable hair filter for a hair dryer according to claim 1, characterized in that: The diameter of the hair filter (4) is adapted to the diameter of the inner wall of the mounting sleeve (2). Several rotating wrenches (9) are fixedly connected to the middle of the outer wall of the hair filter (4). The several rotating wrenches (9) are arranged in a radial ring array around the center of the hair filter (4).

3. The detachable hair filter for a hair dryer according to claim 2, characterized in that: The position of the center of the snap-fit ​​part (71) corresponds to the position of the center of the guide channel (3).

4. The detachable hair filter for a hair dryer according to claim 3, characterized in that: The length of the inclined block (6) protruding from the outside of the rod spring (5) is adapted to the depth of the inner wall of the slot (7). The vertical height of the inclined block (6) is adapted to the vertical height of the slot (7). The outer side of the inclined block (6) is an arc surface and can fit against the inner wall of the slot (7).

5. A detachable hair filter for a hair dryer according to claim 4, characterized in that: An annular blocking flange (8) is fixedly connected to the inner wall of the mounting sleeve (2) near the bottom of the bayonet (7). One side of the annular blocking flange (8) corresponds to the edge of the bottom of the bayonet (7). When the inclined block (6) is fully inserted into the bayonet (7), its bottom end is pressed against the annular blocking flange (8).