Hair dryer fixing device capable of automatically adjusting tightness and mirror cabinet

Abstract

The utility model discloses a blower fixing device capable of automatically adjusting tightness and a mirror cabinet, and belongs to the technical field of blower fixing, the blower fixing device comprises a storage sleeve, a movable support and a fixing plate, the front side of the fixing plate is hinged with the movable support through a rotating seat, and the storage sleeve capable of placing a blower is arranged on the movable support. An automatic adjusting mechanism is arranged between the movable support and the storage sleeve and comprises a pressure sensor, a gear transmission assembly, a motor and a controller. The air blower has the advantages that the movable support extends to the unfolded state, the air blower can be supported, the air blower supporting structure is adjusted to a certain angle according to needs, the function of blowing air without holding the air blower by hand can be achieved, and the air blower can be conveniently and rapidly adjusted through an automatic adjusting mechanism for adjusting the tightness of the connecting position on the movable support. The torsion of the joint can be automatically adjusted according to the quality of the blower, the ideal torsion is ensured when blower supports with different qualities are folded or stretched, and the blower is prevented from falling off.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer fixing technology, specifically to a hair dryer fixing device with automatically adjustable tightness and a mirror cabinet. Background Technology

[0002] A hair dryer consists of a set of heating elements and a small, high-speed fan. When powered on, the heating elements generate heat, and the air blown by the fan passes through the heating elements, turning into hot air. Hair dryers are indispensable tools in the bathroom, typically stored in a mirror cabinet or similar space, secured with a suitable bracket, and taken out only when needed.

[0003] Existing hair dryer mounting brackets are not convenient for storing hair dryers in mirror cabinets, nor are they convenient for adjusting the angle of the hair dryer directly on the bracket after it is fixed. At the same time, the hair dryer brackets themselves do not have the function of automatically adjusting the tightness according to the weight of the hair dryer, and cannot make the bracket fix the hair dryer more securely according to the weight. Their stability and convenience need to be improved. Utility Model Content

[0004] To overcome the problems in existing technologies, such as the inconvenience of storing hair dryers in mirror cabinets using hair dryer mounting brackets, the inconvenience of directly adjusting the angle of blowing on the bracket after fixing, and the lack of automatic adjustment of the hair dryer bracket itself based on the weight of the hair dryer, thus failing to make the bracket more secure in fixing the hair dryer according to the weight, this utility model provides a hair dryer fixing device with automatic adjustment of tension, including a storage sleeve, a movable bracket, and a fixing plate. The front of the fixing plate is hinged to the movable bracket via a rotating seat, and the storage sleeve for placing the hair dryer is installed on the movable bracket.

[0005] The movable support includes a first movable rod, a second movable rod, and a third movable rod. The two sides of one end of the second movable rod are respectively rotatably connected to one end of the two first movable rods, and the middle of the other end of the second movable rod is rotatably connected to the third movable rod.

[0006] An automatic adjustment mechanism is provided between the movable support and the storage sleeve. The automatic adjustment mechanism includes a pressure sensor, a gear transmission assembly, a motor, and a controller. The pressure sensor is installed on the upper surface of the storage sleeve. The gear transmission assembly is connected to the side of the movable support. The motor and the controller are respectively installed on the surface of the fixed plate, and the movable end of the motor is connected to the gear transmission assembly.

[0007] The hair dryer fixing device is installed inside the mirror cabinet. The hair dryer can be stored inside using the folding function of the fixing bracket. When in use, the fixing bracket is extended to the unfolded state, forming a movable support structure for the hair dryer. The support structure can be adjusted to a certain angle as needed, allowing for hand-held drying of the hair dryer, providing great convenience. Simultaneously, the automatic adjustment mechanism adjusts the tightness of the joints on the movable bracket, automatically adjusting the joint torque according to the weight of the hair dryer. This ensures that the torque reaches an ideal state when the hair dryer bracket is folded or extended, guaranteeing both user comfort and preventing the hair dryer from falling, greatly enhancing the convenience of using the hair dryer fixing device.

[0008] Preferably, the ends of the two first movable rods away from the second movable rod are connected to the first toothed pins passing through the rotating seat. The connection between the first movable rod and the second movable rod is provided with a second toothed pin, and the connection between the second movable rod and the third movable rod is provided with a third toothed pin 24. One end of the first toothed pin, the second toothed pin, and the third toothed pin 24 is respectively provided with a gear, and the other end is provided with a fastening nut that is tightly fitted through the connection of the movable rod.

[0009] Preferably, the gear transmission assembly includes a first rack and a second rack. The movable end of the motor is fixedly connected to the first toothed pin. The first toothed pin is driven to the second toothed pin through the first rack. Both sides of the first rack mesh with gears on the first and second toothed pins, respectively. The second toothed pin is driven to the third toothed pin 24 through the second rack. Both sides of the second rack mesh with another gear on the second toothed pin and a gear on the third toothed pin 24, respectively.

[0010] The weight of the hair dryer is detected by a pressure sensor, and the pressure data is then transmitted to the controller. The controller controls the motor to rotate, which in turn drives the first toothed pin to rotate. The first toothed pin drives the second toothed pin to rotate through the first rack, and the second toothed pin drives the third toothed pin 24 to rotate through the second rack. As the three toothed pins rotate, the connection between the two ends of the first and second movable rods becomes tighter, so that the first and second movable rods can be maintained at the required angle without tipping over, thus providing stable support for the hair dryer.

[0011] Preferably, the outer surfaces of the first, second, and third toothed pins 24 near one end of the two racks are fitted with compression springs, and each compression spring is tightly fitted to the surface of the movable rod connected thereto.

[0012] By using a compression spring between the toothed pin and the movable rod, the edge of the movable rod can be squeezed by the toothed pin as it rotates with the motor, so that it fits tightly with the fastening nut at the other end of the toothed pin. This improves the tightness of the connection between the movable rods, making the connection less prone to rotation, and thus achieving the function of maintaining the movable bracket at the required angle height.

[0013] Preferably, the pressure sensor is electrically connected to the motor via a controller.

[0014] Preferably, the storage sleeve has a threading opening, and a miniature level is provided on the front side of the storage sleeve.

[0015] Preferably, a rotating ball head is installed at the end of the third movable rod away from the second movable rod. A rotating nut is sleeved on the outside of the rotating ball head. The rotating nut is fixedly connected to the storage sleeve. A rotating ball groove matching the rotating ball head is formed inside the rotating nut, which can drive the storage sleeve to rotate and adjust along the outer surface of the rotating ball head.

[0016] Preferably, the surface of the fixing plate is provided with a plurality of threaded mounting holes, and the back of the fixing plate is formed with an adhesive area.

[0017] Preferably, the surfaces of the storage sleeve, movable bracket, and fixing plate are all coated with a corrosion-resistant coating.

[0018] This utility model also provides a mirror cabinet, including a mirror cabinet body and a hair dryer fixing device. The interior of the mirror cabinet body has several storage compartments, one of which is equipped with the hair dryer fixing device. A socket plate is provided directly below the hair dryer fixing device. A cabinet door is hinged to the front of the mirror cabinet body.

[0019] A mirror cabinet with a hair dryer fixing device can store the hair dryer and adjust the movable bracket to fix the position of the hair dryer as needed, making it convenient for users to use the automatic hair dryer and greatly improving the practicality of the mirror cabinet.

[0020] Beneficial effects:

[0021] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0022] (1) The hair dryer fixing device is set inside the mirror cabinet. The hair dryer can be stored inside the mirror cabinet by the folding function of the fixing bracket. When in use, the fixing bracket is extended to the unfolded state, thereby forming a movable support structure for the hair dryer. The hair dryer support structure can be adjusted to a certain angle as needed, so that the function of blowing without holding the hair dryer can be realized, which brings great convenience to the user. At the same time, the tightness of the joint on the movable bracket can be adjusted by the automatic adjustment mechanism. The joint torque can be automatically adjusted according to the quality of the hair dryer to ensure that the torque reaches the ideal state when the hair dryer bracket is folded or stretched, which not only ensures the user's hand comfort but also prevents the hair dryer from falling. This brings great convenience to the use of the hair dryer fixing device.

[0023] (2) The weight of the hair dryer is detected by the pressure sensor, and then the pressure data of the hair dryer is transmitted to the controller. The controller controls the motor to rotate, which in turn drives the first toothed pin to rotate. The first toothed pin drives the second toothed pin to rotate through the first rack. The second toothed pin drives the third toothed pin 24 to rotate through the second rack. As the three toothed pins rotate, the connection between the two ends of the first movable rod and the second movable rod will be more tightly connected, so that the first movable rod and the second movable rod can be maintained at the required angle without tilting, and achieve stable support for the hair dryer.

[0024] (3) By using the compression spring between the toothed pin and the movable rod, the edge of the movable rod can be squeezed by the toothed pin as the motor rotates, so that it fits tightly with the fastening nut at the other end of the toothed pin, thereby improving the tightness of the connection of each movable rod, making the connection less likely to rotate, thus achieving the function of maintaining the required angle height of the movable bracket.

[0025] (4) With the mirror cabinet equipped with a hair dryer fixing device, the hair dryer can be stored and the position of the hair dryer can be fixed by adjusting the movable bracket as needed, so as to facilitate the user to blow the hair automatically, which greatly improves the practicality of the mirror cabinet. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the automatically adjustable hair dryer fixing device and mirror cabinet of this utility model;

[0028] Figure 2This is a schematic diagram of the storage state of the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0029] Figure 3 This is a schematic diagram of the extended state of the hair dryer fixing device with automatically adjustable tightness according to this utility model;

[0030] Figure 4 This is a schematic diagram of the planar structure of the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the third movable rod on the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0032] Figure 6 This is a schematic diagram of the internal connection structure of the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0033] Figure 7 This is an exploded view of the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the first toothed pin on the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0035] Figure 9 This is a schematic diagram of the structure of the second toothed pin on the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0036] Figure 10 This is a schematic diagram of the structure of the third toothed pin 24 on the hair dryer fixing device with automatic tension adjustment according to this utility model;

[0037] Figure 11 This is a control flowchart of the hair dryer fixing device with automatic tension adjustment according to this utility model.

[0038] In the diagram: 1. Mirror cabinet body; 2. Storage sleeve; 3. Movable bracket; 4. Fixing plate; 5. Cabinet door; 6. Storage compartment; 7. Socket plate; 8. Pressure sensor; 9. Miniature level; 10. First movable rod; 11. Second movable rod; 12. Third movable rod; 13. First rack; 14. Second rack; 15. Motor; 16. Controller; 17. Rotating seat; 18. Rotating nut; 19. Compression spring; 20. Rotating ball head; 21. Fastening nut; 22. First toothed pin; 23. Second toothed pin; 24. Third toothed pin. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0040] This embodiment places the hair dryer fixing device inside the mirror cabinet. The hair dryer can be stored inside the cabinet via the folding function of the fixing bracket. In use, the fixing bracket is extended to the unfolded state, forming a movable support structure for the hair dryer. The support structure can be adjusted to a certain angle as needed, enabling hand-held use of the hair dryer, greatly improving user convenience. Furthermore, the automatic adjustment mechanism adjusts the tightness of the joints on the movable bracket, automatically adjusting the joint torque according to the quality of the hair dryer, ensuring optimal user experience for hair dryers of different qualities. This significantly enhances the convenience of using the hair dryer fixing device. The specific implementation method is as follows:

[0041] like Figures 1 to 11As shown, an automatically adjustable hair dryer fixing device includes a storage sleeve 2, a movable bracket 3, and a fixing plate 4. The movable bracket 3 is hinged to the front of the fixing plate 4 via a rotating seat 17. The storage sleeve 2 for holding the hair dryer is installed on the movable bracket 3. The movable bracket 3 includes a first movable rod 10, a second movable rod 11, and a third movable rod 12. The two sides of one end of the second movable rod 11 are rotatably connected to one end of each of the two first movable rods 10, and the middle of the other end of the second movable rod 11 is rotatably connected to the third movable rod 12. An automatic adjustment mechanism is provided between the movable bracket 3 and the storage sleeve 2. The automatic adjustment mechanism includes a pressure sensor 8, a gear transmission assembly, a motor 15, and a controller 16. The pressure sensor 8 is installed on the upper surface of the storage sleeve 2. The gear transmission assembly is connected to the side of the movable bracket 3. The motor 15 and the controller 16 are respectively installed on the surface of the fixing plate 4, and the movable end of the motor 15 is connected to the gear transmission assembly. The hair dryer fixing device is installed inside the mirror cabinet. The hair dryer can be stored inside the cabinet by folding the movable bracket 3. When in use, the movable bracket 3 is extended to the unfolded state, thus forming a movable support structure for the hair dryer. The hair dryer support structure can be adjusted to a certain angle as needed, realizing the function of automatically blowing the hair dryer without holding it, which brings great convenience to the user. At the same time, the tension of the joint connection on the movable bracket 3 can be adjusted by the automatic adjustment mechanism. The joint torque can be automatically adjusted according to the weight of the hair dryer to ensure that the torque is in an ideal state when the hair dryer bracket is folded or stretched, which not only ensures the user's comfort but also prevents the hair dryer from falling, bringing great convenience to the use of the hair dryer fixing device.

[0042] The pressure sensor 8 on the storage sleeve 2 can detect the weight of the hair dryer placed on the storage sleeve 2 and transmit the data to the controller 16. The controller 16 can make a judgment based on the weight and control the motor 15 to rotate a certain number of times, thereby driving the gear transmission component to run and tightening the connection of the movable bracket 3 so that the connection is not easy to bend or change the angle. This can fix the hair dryer to a certain extent at a specific angle, which can achieve tilted blowing for the user. At the same time, after tightening, the movable bracket 3 can also be manually adjusted.

[0043] How to calculate the relationship between the weight of a hair dryer and the number of rotations of the motor (15 revolutions):

[0044] The formula for calculating torque is T = F * r, where T represents torque, measured in Newton-meters (Nm); F represents the force acting on the object, measured in Newtons (N); and r represents the radius of the force, measured in meters (m). For a rotating motor, the formula for motor torque is: T = F * R = P / (n * 2π), where P represents power, n represents the number of revolutions per second, and R represents the length of the lever arm (i.e., the perpendicular distance from the point of application to the axis of rotation).

[0045] The movable bracket can only be stopped when the torque generated by the motor rotation is greater than the torque generated by the weight of the hair dryer. Therefore, the number of rotations can be obtained from P / (n * 2π) > F * r, where F is the vertical load of the hair dryer's weight on the joint of the movable bracket and r is the arm length.

[0046] In a preferred embodiment, the ends of the two first movable rods 10 away from the second movable rod 11 are connected to the first toothed pins 22 passing through the rotating seat 17. A second toothed pin 23 is provided at the connection between the first movable rod 10 and the second movable rod 11, and a third toothed pin 24 is provided at the connection between the second movable rod 11 and the third movable rod 12. A gear is provided at one end of each of the first toothed pins 22, the second toothed pin 23, and the third toothed pin 24, and a fastening nut 21 is tightly fitted at each end through the connection of the movable rods. The first toothed pins 22, the second toothed pin 23, and the third toothed pin 24 can serve as rotational fulcrums at the joints of the device. The fastening nuts 21 on the first toothed pins 22, the second toothed pin 23, and the third toothed pin 24 serve as fixing points for the toothed pins. The friction between the movable rods and the fastening nuts 21 can be increased by controlling the degree of compression, thereby increasing the tightness of the joint and making the joint less prone to rotation.

[0047] In a preferred embodiment, the gear transmission assembly includes a first rack 13 and a second rack 14. The movable end of the motor 15 is fixedly connected to a first toothed pin 22. The first toothed pin 22 is driven to the second toothed pin 23 via the first rack 13. Both sides of the first rack 13 mesh with gears on the first toothed pin 22 and the second toothed pin 23, respectively. The second toothed pin 23 is driven to the third toothed pin 24 via the second rack 14. Both sides of the second rack 14 mesh with another gear on the second toothed pin 23 and a gear on the third toothed pin 24, respectively. The weight of the hair dryer is detected by the pressure sensor 8, and the pressure data of the hair dryer is then transmitted to the controller 16. The controller 16 controls the motor 15 to rotate, which in turn drives the first toothed pin 22 to rotate. The first toothed pin 22 drives the second toothed pin 23 to rotate through the first rack 13. The second toothed pin 23 drives the third toothed pin 24 to rotate through the second rack 14. As the three toothed pins rotate, the connection between the two ends of the first movable rod 10 and the second movable rod 11 will be more tightly connected, so that the first movable rod 10 and the second movable rod 11 can be maintained at the required angle without tilting, and thus achieve stable support for the hair dryer.

[0048] In a preferred embodiment, compression springs 19 are fitted onto the outer surfaces of the first toothed pin 22, the second toothed pin 23, and the third toothed pin 24 near one end of the two racks. Each compression spring 19 is tightly fitted against the surface of the movable rod connected to it. By using the compression springs 19 positioned between the toothed pins and the movable rods, the edges of the movable rods can be compressed as the toothed pins rotate with the motor 15, ensuring a tight fit with the fastening nut 21 at the other end of the toothed pin. This improves the tightness of the connection between the movable rods, making the connection less prone to rotation, thereby maintaining the required angle and height of the movable bracket.

[0049] When the motor rotates clockwise, it tightens the toothed pin; when the motor rotates counterclockwise, it loosens the toothed pin. The greater the angle of rotation of the motor, the tighter the spring's compression force, and vice versa.

[0050] In a preferred embodiment, the pressure sensor 8 is electrically connected to the motor 15 via the controller 16. The pressure sensor is mounted on the housing sleeve 2 and can detect the weight of the hair dryer after the housing sleeve 2 provides stable support for the hair dryer. The controller 16 is a microprocessor.

[0051] In a preferred embodiment, the storage sleeve 2 has a threading opening, and a miniature level 9 is provided on the front of the storage sleeve 2. The threading opening facilitates the placement of the hair dryer, and the miniature level 9 can detect whether the storage sleeve 2 is level when the hair dryer is initially placed. If it is not level, it can be manually adjusted. Only when the storage sleeve 2 is level can the pressure sensor 8 accurately test the weight of the hair dryer.

[0052] In a preferred embodiment, a rotating ball head 20 is installed at the end of the third movable rod 12 furthest from the second movable rod 11. A rotating nut 18 is fitted over the rotating ball head 20, and the rotating nut 18 is fixedly connected to the storage sleeve 2. The interior of the rotating nut 18 has a rotating ball groove that matches the rotating ball head 20, allowing the storage sleeve 2 to rotate and adjust along the outer surface of the rotating ball head 20. Through the cooperation of the rotating ball head 20 and the rotating ball groove, the storage sleeve 2 can be rotated 360°.

[0053] In a preferred embodiment, the surface of the fixing plate 4 is provided with a plurality of threaded mounting holes, and the back of the fixing plate 4 is formed with an adhesive area. The fixing plate 4 facilitates the installation and fixation of the hair dryer fixing device inside the mirror cabinet.

[0054] In a preferred embodiment, the surfaces of the housing sleeve 2, the movable bracket 3, and the fixing plate 4 are all coated with a corrosion-resistant coating. The corrosion-resistant coating improves the overall corrosion resistance of the device and extends its service life. The housing sleeve 2, the movable bracket 3, and the fixing plate 4 are made of aluminum alloy, but can also be made of plastic, iron, or other materials.

[0055] In one preferred embodiment, the interior of the mirror cabinet 1 has several storage compartments 6, one of which houses a hair dryer fixing device. A socket plate 7 is located directly below the hair dryer fixing device, and a cabinet door 5 is hinged to the front of the mirror cabinet 1. This mirror cabinet with a hair dryer fixing device allows for the storage of the hair dryer while also enabling the user to adjust the position of the hair dryer using an adjustable bracket, facilitating automatic hair drying and greatly improving the practicality of the mirror cabinet.

[0056] Working Principle: First, the weight data of different hair dryers on the market is extracted to calculate the average weight G. Based on this average weight, the pre-compression force of each spring is set, and the average weight value of the hair dryer is preset in the system. Then, the spring tension is adjusted according to the weight of different hair dryers. The hair dryer fixing device is placed inside the mirror cabinet. The hair dryer can be stored inside the cabinet using the folding function of the fixing bracket. When in use, the fixing bracket is extended to the unfolded state, forming a movable support structure for the hair dryer. The hair dryer support structure can be adjusted to a certain angle as needed, enabling hand-held drying, providing great convenience to the user. Simultaneously, the tension of the joints on the movable bracket is adjusted by an automatic adjustment mechanism, automatically adjusting the joint torque according to the weight of the hair dryer to ensure optimal user experience for hair dryers of different weights. The use of this device brings great convenience. A pressure sensor detects the weight of the hair dryer and transmits the pressure data to a controller. The controller then controls the motor to rotate, which in turn rotates the first toothed pin. The first toothed pin, through a first rack, drives the second toothed pin to rotate, and the second toothed pin, through a second rack, drives the third toothed pin 24 to rotate. As the three toothed pins rotate, the connection between the two ends of the first and second movable rods becomes tighter, allowing the first and second movable rods to maintain the required angle without tipping over, thus providing stable support for the hair dryer. A compression spring located between the toothed pins and the movable rods compresses the edge of the movable rod as the toothed pins rotate with the motor, ensuring a tight fit with the fastening nut at the other end of the toothed pin. This increases the tightness of the connection between the movable rods, making the connection less prone to rotation and thus maintaining the movable bracket at the required angle.

[0057] Step 1: Place the hair dryer on the storage sleeve;

[0058] Step 2: With the fixed bracket in a folded state and the upper end of the storage sleeve in a horizontal state, the weight G of the placed hair dryer is detected by the pressure sensor.

[0059] Step 3: Transmit the weight data to the controller. After receiving the data, the controller calculates the number of degrees N that the motor needs to rotate and compares it with the average weight G1 of different hair dryers on the market. When G > G1, the motor rotates counterclockwise by N degrees; when G < G1, the motor rotates clockwise by N degrees.

[0060] Step 4: The number of revolutions / strokes corresponding to the rotation angle N of the motor;

[0061] Step 5: The motor stops running;

[0062] Step 6: The pressure sensor continues to work, and when the detected value is inconsistent with the previous value, it transmits the data to the controller again.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hair dryer fixing device with automatically adjustable tightness, characterized in that, It includes a storage sleeve (2), a movable bracket (3) and a fixed plate (4). The front of the fixed plate (4) is hinged to the movable bracket (3) via a rotating seat (17). The storage sleeve (2) for placing a hair dryer is installed on the movable bracket (3). The movable support (3) includes a first movable rod (10), a second movable rod (11) and a third movable rod (12). The two sides of one end of the second movable rod (11) are rotatably connected to one end of the two first movable rods (10), and the middle of the other end of the second movable rod (11) is rotatably connected to the third movable rod (12). An automatic adjustment mechanism is provided between the movable support (3) and the storage sleeve (2). The automatic adjustment mechanism includes a pressure sensor (8), a gear transmission assembly, a motor (15), and a controller (16). The pressure sensor (8) is installed on the upper surface of the storage sleeve (2). The gear transmission assembly is connected to the side of the movable support (3). The motor (15) and the controller (16) are respectively installed on the surface of the fixed plate (4), and the movable end of the motor (15) is connected to the gear transmission assembly.

2. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, One end of each of the two first movable rods (10) away from the second movable rod (11) is connected to a first toothed pin (22) passing through the rotating seat (17). A second toothed pin (23) is provided at the connection between the first movable rod (10) and the second movable rod (11). A third toothed pin (24) is provided at the connection between the second movable rod (11) and the third movable rod (12). One end of the first toothed pin (22), the second toothed pin (23) and the third toothed pin (24) is provided with a gear, and the other end is provided with a fastening nut (21) tightly fitted through the connection of the movable rod.

3. The hair dryer fixing device with automatically adjustable tightness according to claim 2, characterized in that, The gear transmission assembly includes a first rack (13) and a second rack (14). The movable end of the motor (15) is fixedly connected to the first toothed pin (22). The first toothed pin (22) is connected to the second toothed pin (23) via the first rack (13). The two sides of the first rack (13) mesh with the gears on the first toothed pin (22) and the second toothed pin (23), respectively. The second toothed pin (23) is connected to the third toothed pin (24) via the second rack (14). The two sides of the second rack (14) mesh with another gear on the second toothed pin (23) and the gear on the third toothed pin (24), respectively.

4. The hair dryer fixing device with automatically adjustable tightness according to claim 3, characterized in that, The first toothed pin (22), the second toothed pin (23) and the third toothed pin 24 (24) are fitted with compression springs (19) on the outer surface near one end of the two racks, and each compression spring (19) is tightly attached to the surface of the movable rod connected thereto.

5. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, The pressure sensor (8) is electrically connected to the motor (15) via a controller (16).

6. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, The storage sleeve (2) has a threading opening, and a miniature level (9) is provided on the front side of the storage sleeve (2).

7. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, The third movable rod (12) is equipped with a rotating ball head (20) at one end away from the second movable rod (11). A rotating nut (18) is sleeved on the outside of the rotating ball head (20). The rotating nut (18) is fixedly connected to the storage sleeve (2). The rotating nut (18) has a rotating ball groove inside that matches the rotating ball head (20) and can drive the storage sleeve (2) to rotate and adjust along the outer surface of the rotating ball head (20).

8. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, The surface of the fixing plate (4) is provided with a plurality of threaded mounting holes, and an adhesive area is formed on the back side of the fixing plate (4).

9. The hair dryer fixing device with automatically adjustable tightness according to claim 1, characterized in that, The surfaces of the storage sleeve (2), the movable bracket (3), and the fixing plate (4) are all coated with a corrosion-resistant coating.

10. A mirror cabinet, characterized in that, The mirror cabinet includes a cabinet body and a hair dryer fixing device as described in any one of claims 1-9. The interior of the cabinet body (1) has a plurality of storage compartments (6), one of which is equipped with the hair dryer fixing device, and a socket plate (7) is provided directly below the hair dryer fixing device. The front of the mirror cabinet body (1) is hinged with a cabinet door (5).

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