A wall-mounted hair dryer

Abstract

This invention discloses a wall-mounted hair dryer, including a hair dryer body and a base. The hair dryer body includes a nozzle with an air inlet and an air outlet. The nozzle contains a dust collection groove and a dust scraping structure. A dust outlet is located on the side of the nozzle for the dust scraping structure to remove dust. The base has a positioning groove that matches the hair dryer body. The base also has a suction structure, including an air intake that is aligned with and matches the dust outlet within the positioning groove. This wall-mounted hair dryer allows for convenient cleaning of the filter through the cooperation of the base and the hair dryer body, preventing filter clogging.

Description

Technical Field

[0001] This invention belongs to the field of hair dryer technology, specifically a wall-mounted hair dryer. Background Technology

[0002] A hair dryer is a device that uses a motor to drive fan blades to rotate, thereby creating airflow. It contains heating elements inside the nozzle to blow hot air and dry hair more quickly. It is a common household appliance. Wall-mounted hair dryers are commonly used in hotels. They consist of the hair dryer itself and a base fixed to the wall. The base and hair dryer are connected by a power cord. This fixed location makes it convenient for guests to use and place, while also facilitating inspection and preventing theft.

[0003] Hair dryers have a grille at the air inlet to prevent debris from entering the nozzle. Inside the grille, there is usually a filter with smaller mesh. The filter prevents dust and lint from entering the nozzle, thus preventing them from sticking to the hair and the heating wire. It also prevents dust and lint from affecting heating or burning and producing an odor. After a period of use, the filter may become clogged, leading to increased resistance and a decrease in the overall airflow of the hair dryer.

[0004] Therefore, most existing hair dryer filters can be cleaned by removing the external grille. However, some existing hair dryers are not easy or suitable for removing the grille. For example, hair dryers with a display screen at the air inlet to show the real-time temperature of the hair dryer have their filters inside the hair dryer, making them difficult to clean. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a wall-mounted hair dryer that allows for easy cleaning of the filter through the cooperation of the base and the hair dryer body, thus preventing filter clogging.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A wall-mounted hair dryer includes a hair dryer body and a base. The hair dryer body includes a blower tube with an air inlet and an air outlet. An air guide sleeve is disposed inside the blower tube. A drive motor is disposed inside the air guide sleeve. A filter screen is disposed on the air guide sleeve. A magnetic sliding sleeve is slidably mounted on the air guide sleeve. The filter screen is fixed on the magnetic sliding sleeve. A first return spring is disposed between the filter screen and the drive motor. A limiting part is disposed inside the blower tube. An extension rod is disposed at the center of the filter screen toward the drive motor. A linkage sleeve is disposed at the end of the extension rod that can be engaged and linked with the motor shaft of the drive motor. An electromagnet is disposed on the outer periphery of the air guide sleeve. When the electromagnet is energized, it attracts the magnetic sliding sleeve so that the linkage sleeve is fitted onto the motor shaft of the drive motor. A rotating center is disposed on the outer side of the filter screen. The dust scraper has a guide groove axially arranged on the inner wall of the air duct. The end of the dust scraper is slidably disposed in the guide groove. The dust scraper has a dust collection tank with a dust outlet at the top. The dust scraper has a scraping blade near the filter screen. The air duct has a dust outlet located in the guide groove. The dust collection tank is open at one end facing the dust outlet. The air duct has a cover plate extending towards the center above the guide groove. The dust collection tank and / or the cover plate has a one-way air inlet at the end away from the dust outlet. In the power-off state, the magnetic sliding sleeve abuts against the limiting part to align the dust collection tank with the dust outlet. The cover plate seals and covers the dust outlet. The base has a positioning groove that matches the hair dryer body. The base has a dust suction structure, which includes an air intake. The air intake is located in the positioning groove and aligned with the dust outlet. When dust removal is needed, this wall-mounted hair dryer uses an electromagnet to attract the magnetic sliding sleeve, causing the linkage sleeve to engage with the motor shaft of the drive motor. The drive motor then rotates the filter. During the filter's rotation, the dust scraper remains stationary, scraping dust from the filter surface into the dust collection tank. After the drive motor rotates several times, the electromagnet is de-energized, and the filter automatically resets under the force of the first return spring. The dust collection tank aligns with the dust outlet, and the cover closes. After the hair dryer body is placed in the positioning slot, the suction port is inserted into the dust outlet. Activating the suction mechanism removes the dust from the dust collection tank, facilitating filter cleaning and preventing clogging.

[0007] In the above technical solution, preferably, the hair dryer body further includes a handle, and the handle is provided with a switch for controlling the on / off state of the electromagnet. This structure allows for convenient control of the dust removal operation via the switch on the handle.

[0008] In the above technical solution, preferably, the limiting part is a tactile switch fixed inside the air duct. The tactile switch is connected to a control circuit board. When the magnetic sliding sleeve disengages from the tactile switch, the control circuit board controls the electromagnet to be energized and then de-energized after a delay. This structure enables the hair dryer to have an automatic dust removal function. When there is a lot of dust on the filter, the ventilation efficiency of the filter decreases. Under the action of the fan blades, a negative pressure is generated between the filter and the drive motor, causing the filter to move towards the drive motor. After the movement, the magnetic sliding sleeve disengages from the tactile switch, the potential of the tactile switch changes, and the control circuit board controls the electromagnet to be energized and then de-energized after a delay, thus completing the automatic dust removal operation. After the dust removal is completed, the magnetic sliding sleeve returns to its initial position.

[0009] In the above technical solution, preferably, the base includes a positioning seat and a movable seat. The positioning seat has an opening on one side, and the movable seat, which extends from the opening side, is slidably disposed inside the positioning seat. The outer wall of the movable seat forms the positioning groove, and a sealed cavity is formed between the inner wall of the movable seat and the inner wall of the positioning seat. A second return spring is disposed between the inner wall of the movable seat and the inner wall of the positioning seat. A one-way air outlet is disposed on the movable seat and / or the positioning seat. A first permanent magnet is disposed inside the sealed cavity, and a second permanent magnet is disposed inside the air duct. When the air duct is placed in the positioning groove, the first permanent magnet attracts the second permanent magnet to position the hair dryer body in the positioning groove, and the magnetic force of the first permanent magnet on the second permanent magnet attracts the movable seat to move into the positioning seat and exhaust air from the one-way air outlet. With this structure, when the hair dryer body is placed in the positioning slot, the magnetic attraction of the first permanent magnet to the second permanent magnet will cause the movable seat to move into the positioning seat and exhaust air from the one-way air outlet. When the hair dryer body is removed, the elastic force of the second return spring will cause the movable seat to move outward from the positioning seat, thereby causing the air inlet to draw in air and suck out the dust in the dust storage tank.

[0010] In the above technical solution, preferably, a dust collection bottle is detachably connected to the positioning base, and an air suction port is connected to an air suction hose that extends into the dust collection bottle. A dust-proof screen is provided on the outside of the air suction hose to isolate the dust collection bottle from the sealed cavity. This structure, using the air suction hose for airflow guidance, allows the sucked-up dust to be stored in the dust collection bottle. The dust can be easily disposed of by disassembling the dust collection bottle and emptying it.

[0011] In the above technical solution, preferably, the outer ring of the movable seat is provided with a sealing ring, which abuts against the inner wall of the positioning seat. This structure improves the sealing performance between the movable seat and the positioning seat.

[0012] In the above technical solution, preferably, a spring positioning post is provided on the inner wall of the movable seat opposite to the inner wall of the positioning seat, and the second return spring is sleeved on the spring positioning post. This structure prevents the second return spring from shifting.

[0013] Compared with the prior art, this invention has the following advantages: When dust removal is required, this wall-mounted hair dryer controls the electromagnet to be energized to attract the magnetic sliding sleeve so that the linkage sleeve is fitted into the motor shaft of the drive motor. Then, the drive motor drives the filter to rotate. During the rotation of the filter, the dust scraper does not move and scrapes the dust on the surface of the filter into the dust collection tank. After the drive motor rotates several times, the electromagnet is de-energized, and the filter automatically resets under the elastic force of the first reset spring. The dust collection tank is aligned with the dust outlet, and the cover plate closes the dust collection tank. After the hair dryer body is placed in the positioning slot, the air intake is inserted into the dust outlet. By activating the suction structure, the dust in the dust collection tank can be sucked out, thereby facilitating the cleaning of the filter and preventing filter clogging. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the hair dryer body in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the base structure in an embodiment of the present invention.

[0017] Figure 4 This is an exploded structural diagram of the air inlet side in the embodiment of the present invention with the electromagnet not energized.

[0018] Figure 5 This is an exploded structural diagram of the air inlet side when the electromagnet is energized, according to an embodiment of the present invention.

[0019] Figure 6 This is a cross-sectional view of the electromagnet in the unenergized state in an embodiment of the present invention.

[0020] Figure 7 for Figure 6 A magnified view of a portion of the image.

[0021] Figure 8 This is a schematic diagram of the dust scraper component in an embodiment of the present invention.

[0022] Figure 9 This is a cross-sectional view of the base in an embodiment of the invention.

[0023] Figure 10 This is a partial cross-sectional view of the base in an embodiment of the invention. Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: See also Figures 1 to 10A wall-mounted hair dryer includes a hair dryer body 100 and a base 200, with an electric wire connecting the hair dryer body 100 and the base 200. The hair dryer body 100 includes a blower tube 1 with an air inlet 11 and an air outlet 12. An air guide sleeve 2 is disposed inside the blower tube 1, and the outer side of the air guide sleeve 2 is tightly and snapped into the blower tube 1. A drive motor 3 is fixedly snapped into the inner side of the air guide sleeve 2, and fan blades are fixed on the motor shaft of the drive motor 3. A filter screen 4 is disposed on the air guide sleeve 2, and the filter screen 4 is a metal panel with filter holes. Specifically, a magnetic sliding sleeve 5 is slidably sleeved on the outer periphery of the air guide sleeve 2. The filter screen 4 is fixed on the top and can move with the sliding of the magnetic sliding sleeve 5. A first return spring 6 is provided between the filter screen 4 and the drive motor 3. A limiting part 7 is provided inside the air duct 1. An extension rod 41 is provided from the center of the filter screen 4 toward the drive motor 3. The end of the extension rod 41 is provided with a linkage sleeve 42 that can be sleeved and linked with the motor shaft of the drive motor 3. The linkage sleeve 42 has a non-circular groove that can be matched and sleeved with the non-circular motor shaft of the drive motor 3 for transmission. An electromagnet 21 is provided on the outer periphery of the air guide sleeve 2. When the electromagnet is not energized, the elastic force of the return spring 6 will cause the magnetic sliding sleeve to move. 5. With the limit part 7 in place, the electromagnet 21 is energized to attract the magnetic sliding sleeve 5 so that the linkage sleeve 42 is fitted into the motor shaft of the drive motor 3. A dust scraper 8 is rotatably arranged at the center of the outer side of the filter screen 4. A guide groove 13 is axially arranged on the inner wall of the air duct 1. The end of the dust scraper 8 is slidably arranged in the guide groove 13. A dust collection tank 81 with a dust outlet at the top is provided on the dust scraper 8. A scraping blade 82 is provided on the side of the dust scraper 8 near the filter screen 4. A dust outlet 14 is provided on the air duct 1 within the guide groove 13. The end of the dust collection tank 81 facing the dust outlet 14 is open. An extension towards the center is provided inside the air duct 1 above the guide groove 13. The extended cover plate 15, the dust storage tank 81 and / or the end of the cover plate 15 away from the dust outlet 14 is provided with a one-way air inlet 83. The one-way air inlet 83 may be provided with a one-way valve or other one-way air inlet structure. In the power-off state, the magnetic sliding sleeve 5 abuts against the limiting part 7 to make the dust storage tank 81 aligned with the dust outlet 14. The cover plate 15 seals and covers the dust outlet. The base 200 is provided with a positioning groove 203 that matches the hair dryer body 100. The base 200 is provided with a dust suction structure, which includes an air suction port 208. The air suction port 208 is located in the positioning groove 203 and aligned with and matched the dust outlet 14.When dust removal is needed, this wall-mounted hair dryer controls the electromagnet 21 to attract the magnetic sliding sleeve 5, causing the linkage sleeve 42 to fit onto the motor shaft of the drive motor 3. Then, the drive motor 3 drives the filter 4 to rotate. During the rotation of the filter 4, the dust scraper 8 does not move, and the dust scraper 8 scrapes the dust on the surface of the filter 4 into the dust collection tank 81. After the drive motor 3 rotates several times, the electromagnet 21 is de-energized, and the filter 4 automatically resets under the elastic force of the first reset spring 6. The dust collection tank 81 aligns with the dust outlet 14, and the cover plate 15 closes the dust collection tank 81. After the hair dryer body 100 is placed in the positioning slot 203, the air intake 208 is inserted into the dust outlet 14. By activating the suction structure, the dust in the dust collection tank 81 can be sucked out, thus making it easy to clean the filter and preventing filter clogging.

[0025] In this embodiment, the hair dryer body 100 also includes a handle 9, on which a switch 91 for controlling the on / off state of the electromagnet 21 is provided. This structure allows for convenient control of the dust removal operation via the switch 91 on the handle 9.

[0026] In this embodiment, the limiting part 7 is a tactile switch fixed inside the air duct 1. The tactile switch is connected to the control circuit board. When the magnetic sliding sleeve 5 disengages from the tactile switch, the control circuit board controls the electromagnet 21 to be energized and then de-energized after a delay. This structure enables the hair dryer to have an automatic dust removal function. When there is a lot of dust on the filter 4, the ventilation efficiency of the filter 4 decreases. Under the action of the fan blades, a negative pressure is generated between the filter 4 and the drive motor 3, causing the filter 4 to move towards the drive motor 3. After the movement, the magnetic sliding sleeve 5 disengages from the tactile switch, the potential of the tactile switch changes, and the control circuit board controls the electromagnet 21 to be energized and then de-energized after a delay, thus completing the automatic dust removal operation. After the dust removal is completed, the magnetic sliding sleeve 5 returns to its initial position.

[0027] In this embodiment, the base 200 includes a positioning seat 201 and a movable seat 202. The positioning seat 201 has an opening on one side, and the movable seat 202, extending from the opening side, is slidably disposed within the positioning seat 201. A positioning groove 203 is formed on the outer wall of the movable seat 202, and a sealed cavity is formed between the inner wall of the movable seat 202 and the inner wall of the positioning seat 201. A second return spring 204 is disposed between the inner wall of the movable seat 202 and the inner wall of the positioning seat 201. A one-way air outlet 205 is provided on the movable seat 202 and / or the positioning seat 201. The one-way air outlet 205 may be equipped with... There is a one-way valve or other one-way air outlet structure. Specifically, in this embodiment, the positioning seat 201 is provided with a one-way air outlet 205, the sealing cavity is provided with a first permanent magnet 206, and the air duct 1 is provided with a second permanent magnet 16. When the air duct 1 is placed in the positioning groove 203, the first permanent magnet 206 attracts the second permanent magnet 16 to position the hair dryer body 100 in the positioning groove 203, and the magnetic force of the first permanent magnet 206 on the second permanent magnet 16 attracts the movable seat 202 to move into the positioning seat 201 and exhausts air from the one-way air outlet 205. When the hair dryer body 100 is placed in the positioning groove 203, the magnetic attraction of the first permanent magnet 206 to the second permanent magnet 16 will cause the movable seat 202 to move into the positioning seat 201 and exhaust air from the one-way air outlet 205. When the hair dryer body 100 is removed, the elastic force of the second return spring 204 will cause the movable seat 202 to move outward from the positioning seat 201, thereby causing the air intake 208 to draw in air and suck out the dust in the dust storage tank 81.

[0028] In this embodiment, a dust collection bottle 207 is detachably connected to the positioning base 201. In this embodiment, the connection is threaded. An air intake 208 is connected to a suction hose 209 that extends into the dust collection bottle 207. A dust-proof screen 210 is provided on the outside of the suction hose 209 to isolate the dust collection bottle 207 from the sealed cavity. Using this structure, the suction hose 209 guides the airflow, allowing the sucked-up dust to be stored in the dust collection bottle 207. The dust can be easily disposed of by disassembling the dust collection bottle 207 and emptying it.

[0029] In this embodiment, in order to improve the sealing between the movable seat 202 and the positioning seat 201, a sealing ring 211 is provided on the outer ring of the movable seat 202, and the sealing ring 211 abuts against the inner wall of the positioning seat 201.

[0030] In this embodiment, to prevent the second reset spring 204 from shifting, a spring positioning post 212 is provided on the inner wall of the movable seat 202 opposite to the inner wall of the positioning seat 201, and the second reset spring 204 is sleeved on the spring positioning post 212.

[0031] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A wall-mounted hair dryer, comprising a hair dryer body (100) and a base (200), wherein the hair dryer body (100) includes a blower tube (1) having an air inlet (11) and an air outlet (12), a guide sleeve (2) is provided inside the blower tube (1), a drive motor (3) is provided inside the guide sleeve (2), and a filter screen (4) is provided on the guide sleeve (2), characterized in that: A magnetic sliding sleeve (5) is provided on the air guide sleeve (2), and the filter screen (4) is fixed on the magnetic sliding sleeve (5). A first return spring (6) is provided between the filter screen (4) and the drive motor (3). A limit part (7) is provided inside the air duct (1). An extension rod (41) is provided from the center of the filter screen (4) toward the drive motor (3). A linkage sleeve (42) is provided at the end of the extension rod (41) that can be sleeved and linked with the motor shaft of the drive motor (3). An electromagnet (21) is provided on the outer periphery of the fan sleeve (2). When the electromagnet (21) is energized, it attracts the magnetic sliding sleeve (5) so that the linkage sleeve (42) is fitted into the motor shaft of the drive motor (3). A dust scraper (8) is rotatably provided on the outer center of the filter screen (4). A guide groove (13) is axially provided on the inner wall of the fan duct (1). The end of the dust scraper (8) is slidably provided in the guide groove (13). A dust collection trough (81) with a dust outlet at the top is provided on the dust scraper (8). The component (8) has a scraper (82) near the filter (4). A dust outlet (14) is located within the guide groove (13) on the air duct (1). The dust storage tank (81) opens towards the dust outlet (14). A cover plate (15) extending towards the center is located above the guide groove (13) inside the air duct (1). A one-way air inlet (83) is located at the end of the dust storage tank (81) and / or the cover plate (15) away from the dust outlet (14). In the power-off state, the... The magnetic sliding sleeve (5) abuts against the limiting part (7) so that the dust storage tank (81) is aligned with the dust outlet (14). The cover plate (15) seals and covers the dust outlet. The base (200) is provided with a positioning groove (203) that matches the hair dryer body (100). The base (200) is provided with a dust suction structure, which includes an air intake (208). The air intake (208) is located in the positioning groove (203) and aligned with and matched with the dust outlet (14).

2. The wall-mounted hair dryer as described in claim 1, characterized in that: The hair dryer body (100) also includes a handle (9), on which a switch (91) is provided for controlling the electromagnet (21) to be powered on and off.

3. A wall-mounted hair dryer as described in claim 1, characterized in that: The limiting part (7) is a tactile switch fixed inside the air duct (1). The tactile switch is connected to the control circuit board. When the magnetic sliding sleeve (5) is disengaged from the tactile switch, the control circuit board controls the electromagnet (21) to be energized and then de-energized after a delay.

4. A wall-mounted hair dryer as described in claim 1, characterized in that: The base (200) includes a positioning seat (201) and a movable seat (202). The positioning seat (201) has an opening on one side, and the movable seat (202) is slidably disposed inside the positioning seat (201) and extends out from the opening side. The outer wall of the movable seat (202) forms the positioning groove (203). A sealed cavity is formed between the inner wall of the movable seat (202) and the inner wall of the positioning seat (201). A second return spring (204) is disposed between the inner wall of the movable seat (202) and the inner wall of the positioning seat (201). The movable seat (202) and / or the positioning seat (201) are connected. The device is provided with a one-way air outlet (205), a first permanent magnet (206) is provided in the sealed cavity, and a second permanent magnet (16) is provided in the air duct (1). When the air duct (1) is placed in the positioning groove (203), the first permanent magnet (206) attracts the second permanent magnet (16) to position the hair dryer body (100) in the positioning groove (203), and the magnetic attraction of the first permanent magnet (206) to the second permanent magnet (16) moves the movable seat (202) into the positioning seat (201) and exhausts air from the one-way air outlet (205).

5. A wall-mounted hair dryer as described in claim 4, characterized in that: A dust collection bottle (207) is detachably connected to the positioning seat (201), and an air suction port (208) is connected to an air suction hose (209) that extends into the dust collection bottle (207). A dust-proof net (210) is provided on the outside of the air suction hose (209) to isolate the dust collection bottle (207) from the sealed cavity.

6. A wall-mounted hair dryer as described in claim 4, characterized in that: The outer ring of the movable seat (202) is provided with a sealing ring (211), which abuts against the inner wall of the positioning seat (201).

7. A wall-mounted hair dryer as described in claim 4, characterized in that: A spring positioning post (212) is provided on the inner wall of the movable seat (202) opposite to the inner wall of the positioning seat (201), and the second reset spring (204) is sleeved on the spring positioning post (212).

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