A folding hair dryer

Abstract

The application discloses a folding hair dryer, which comprises a shell, a nozzle is clamped on the front side of the shell, a filter cover is filtered on the rear side of the shell, a handle is rotationally connected to the shell near the rear end, a circular control panel is arranged on the rotation position, a plurality of buttons are arranged on the control panel, a switch is arranged on the handle, a fan is installed in the shell, a filter hole is arranged on the side of the filter cover, a heat dissipation plate is arranged opposite to the filter hole in the filter cover, and a temperature insulation layer is fixed to the inner side of the shell. When not in use, the filter hole is blocked by the heat dissipation plate, so that dust is prevented from falling into the hair dryer. The state of the temperature insulation layer can be changed by arranging the movable armature, the temperature insulation layer is used in the process, is cooled after being closed, the temperature of the shell is reduced, and scalding is avoided.

Description

Technical Field

[0001] This invention relates to the field of hair dryer technology, specifically a folding hair dryer. Background Technology

[0002] Hair dryers are mainly used for drying and styling hair, but they can also be used in laboratories, physiotherapy rooms, industrial production, and art for localized drying, heating, and physiotherapy.

[0003] Chinese patent discloses a handheld portable hair dryer (authorization announcement number CN 219438415U). This patented technology, through the design of a handheld shell, allows for handheld use, increasing convenience and portability, making it easier for users to carry when out and about, and enhancing the product's applicability. However, the filter vents of the hair dryer are easily exposed to dust when left open for extended periods, and the outer shell tends to overheat after prolonged use, resulting in slow heat dissipation when folded down and a risk of burns. Therefore, this invention provides a foldable hair dryer to address the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a foldable hair dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A folding hair dryer includes a housing, a nozzle snapped onto the front side of the housing, a filter cover on the rear side of the housing, a handle rotatably connected to the rear end of the housing, a circular control panel with several buttons on the rotatable position, a switch on the handle, a fan installed inside the housing, a receiving box threaded to the rear side of the filter cover, a cap threaded to the rear side of the receiving box, a central column fixed to the center of the front side of the receiving box, and a filter screen threaded to the front end of the central column.

[0007] The filter cover has filter holes on its side, and a heat dissipation plate is provided inside the filter cover opposite the filter holes. One side of the heat dissipation plate is hinged to the filter cover, and the front end of the other side is slidably connected to the groove of the rotating ring. The front side of the rotating ring is rotatably connected to the inclined rod, and the front end of the inclined rod is rotatably connected to the broken line rod.

[0008] A drive rod is fixed in the middle of the zigzag rod, and pistons are connected to both ends of the drive rod. The pistons slide inside the piston cylinders, which are connected to the insulation layer via connecting pipes. Two piston cylinders are symmetrically arranged about the top and bottom of the fan. Two sets of serpentine tubes are provided inside the insulation layer, and the two ends of the serpentine tubes are respectively connected to the two piston cylinders on one side. The front side of the front piston cylinder is connected to one end of the serpentine tube, and the rear side of the rear piston cylinder is connected to the other end of the serpentine tube. The insulation layer is fixed inside the shell. A heating assembly is provided in the shell opposite the insulation layer. Several heating assemblies are arranged in a circle. A straight rod is rotatably connected to the middle of the inner side of the heating assembly. The end of the straight rod away from the heating assembly is rotatably connected to a disc. A screw sleeve is fixedly connected to the rear side of the disc. The screw sleeve is connected to a screw rod through an internal thread. A movable armature is fixedly connected to the rear end of the screw rod. The movable armature is fixedly connected to the front end of the zigzag rod. An electromagnet is provided behind the movable armature. The fan and the electromagnet are electrically connected to the control board and the switch.

[0009] Preferably, the container has a vent on the front side and contains a fragrance.

[0010] Preferably, the rear side of the screw cap is provided with a raised strip to facilitate rotation.

[0011] Preferably, the rear side of the filter screen is provided with an annular groove, and a stabilizing frame is engaged in the annular groove. The rear end of the stabilizing frame is fixed to the front side of the receiving box to improve stability.

[0012] Preferably, the outer side of the container is provided with a spiral-shaped air guide groove to guide the movement of air.

[0013] Preferably, the inclined rod is tangential to the rotating ring, and the angle between the inclined rod and the plane containing the rotating ring is an acute angle.

[0014] Preferably, the heat sink has protrusions facing the filter holes to help seal the filter holes.

[0015] Preferably, the broken bar, the diagonal bar, the rotating ring, and the heat sink are all made of metal and have good thermal conductivity.

[0016] Preferably, the movable armature and the screw sleeve are both slidably connected inside the guide cover to improve the stability of movement.

[0017] Preferably, the heating component is slidably connected to the guide frame, and two sets of guide frames are symmetrically arranged at the front and rear to improve the stability of the movement of the heating component.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, through the setting of a heat sink, seals the filter holes when not in use, preventing dust from falling into the hair dryer.

[0020] 2. By setting a movable armature, the present invention can change the state of the heat insulation layer. It can insulate the heat during use and cool down after being closed, thereby reducing the temperature of the shell and preventing burns. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a foldable hair dryer.

[0022] Figure 2 This is a top view schematic diagram of a foldable hair dryer.

[0023] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0024] Figure 4 This is a cross-sectional structural diagram of the rotating ring of a folding hair dryer.

[0025] Figure 5 This is a cross-sectional structural diagram of the heating element of a foldable hair dryer.

[0026] Figure 6 for Figure 3 A magnified schematic diagram of part A in the diagram.

[0027] Figure 7 This is a cross-sectional view of the internal structure of a foldable hair dryer housing.

[0028] In the diagram: 1. Housing; 2. Nozzle; 3. Filter cover; 4. Handle; 5. Control panel; 6. Switch; 7. Fan; 8. Container box; 9. Screw cap; 10. Filter screen;

[0029] 11. Central column; 12. Stabilizer; 13. Heat sink; 14. Protrusion; 15. Rotating ring; 16. Diagonal bar; 17. Folded bar; 18. Movable armature; 19. Guide cover; 20. Electromagnet;

[0030] 21. Screw; 22. Screw sleeve; 23. Disc; 24. Straight rod; 25. Heating assembly; 26. Guide frame; 27. Piston cylinder; 28. Drive rod; 29. ​​Connecting pipe; 30. Thermal insulation layer. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-7In this embodiment of the invention, a folding hair dryer includes a housing 1, a nozzle 2 snapped onto the front side of the housing 1, a filter cover 3 filtered onto the rear side of the housing 1, a handle 4 rotatably connected to the rear end of the housing 1, a circular control plate 5 with several buttons at the rotatable position, a switch 6 on the handle 4, a fan 7 installed inside the housing 1, a receiving box 8 threadedly connected to the rear side of the filter cover 3, a cap 9 threadedly connected to the rear side of the receiving box 8, a vent hole on the front side of the receiving box 8, an air freshener inside the receiving box 8, a raised strip on the rear side of the cap 9 for easy rotation, a central column 11 fixed to the center of the front side of the receiving box 8, a filter screen 10 threadedly connected to the front end of the central column 11, an annular groove on the rear side of the filter screen 10, a stabilizing frame 12 snapped into the annular groove, the rear end of the stabilizing frame 12 fixed to the front side of the receiving box 8 for improved stability, and a spiral air guide groove on the outer side of the receiving box 8 to guide air movement.

[0033] The filter cover 3 has filter holes on its side. Inside the filter cover 3, opposite the filter holes, there is a heat dissipation plate 13. One side of the heat dissipation plate 13 is hinged to the filter cover 3, and the front end of the other side is slidably connected to the groove of the rotating ring 15. The front side of the rotating ring 15 is rotatably connected to the inclined rod 16, and the front end of the inclined rod 16 is rotatably connected to the broken line rod 17. The inclined rod 16 is tangent to the rotating ring 15, and the angle between the plane where the inclined rod 16 and the rotating ring 15 are located is an acute angle. The heat dissipation plate 13 has protrusions 14 opposite the filter holes to help seal the filter holes. The broken line rod 17, the inclined rod 16, the rotating ring 15 and the heat dissipation plate 13 are all metal and have good thermal conductivity.

[0034] A drive rod 28 is fixed to the middle of the zigzag rod 17. Pistons are connected to both ends of the drive rod 28, and the pistons slide within the piston cylinder 27. The piston cylinder 27 is connected to the insulation layer 30 via a connecting pipe 29. Two piston cylinders 27 are symmetrically arranged about the top and bottom of the fan 7. Two sets of serpentine tubes are provided inside the insulation layer 30. The two ends of the serpentine tubes are respectively connected to the two piston cylinders 27 on one side. The front side of the front piston cylinder 27 is connected to one end of the serpentine tube, and the rear side of the rear piston cylinder 27 is connected to the other end of the serpentine tube. The insulation layer 30 is fixed to the inside of the housing 1. A heating assembly 25 is provided on the housing 1 directly opposite the insulation layer 30. Several heating assemblies 25 are arranged circumferentially. The heating assembly 25 has a... A straight rod 24 is rotatably connected to the middle of the side. The end of the straight rod 24 away from the heating component 25 is rotatably connected to a disc 23. A screw sleeve 22 is fixedly connected to the rear side of the disc 23. The screw sleeve 22 is connected to a screw rod 21 through an internal thread. A movable armature 18 is fixedly connected to the rear end of the screw rod 21. The movable armature 18 is fixedly connected to the front end of the folded rod 17. An electromagnet 20 is provided behind the movable armature 18. The movable armature 18 and the screw sleeve 22 are slidably connected inside the guide cover 19 to improve the stability of movement. The heating component 25 is slidably connected to a guide frame 26. Two sets of guide frames 26 are symmetrically arranged at the front and rear to improve the stability of movement of the heating component 25. The fan 7 and the electromagnet 20 are electrically connected to the control board 5 and the switch 6.

[0035] The working principle of this invention is as follows: During use, by rotating the handle 4 until it forms a right angle with the housing 1, the switch 6 is turned on. The operating mode is controlled via the control panel 5. This part combines folding, display, and operation into one unit. Existing displays are generally located on the cylinder body, while buttons are on the handle, which is inconvenient. The temperature and fan speed buttons on the control panel 5 each have three settings, allowing for nine different modes. The control panel 5 controls the fan 7, electromagnet 20, and heating element 25 to work, sending out hot air. The electromagnet 20 drives the movable armature 18 to move rearward, compressing the spring and thus driving the screw 21. The screw 21 moves, and the thread on the outside of the screw 21 drives the screw sleeve 22 to rotate. The screw sleeve 22 then drives the straight rod 24 to move, pulling the heating component 25 to unfold outward along the guide frame 26. At the same time, the folding rod 17 drives the drive rod 28 to move, which in turn drives the piston to slide in the piston cylinder 27. The front piston cylinder 27 is filled with liquid, and the air in the rear piston cylinder 27 is forced into the serpentine tube of the insulation layer 30 to form an insulation effect. The folding rod 17 drives the inclined rod 16 to move, which in turn drives the rotating ring 15 to rotate. This, in turn, drives the heat dissipation plate 13 to open through the sliding groove, and the filter holes of the filter cover 3 open, blowing hot air.

[0036] Meanwhile, in the fragrance diffuser inside the container box 8, the air passes through the filter cover 3, is filtered by the filter screen 10, then passes through the fan 7 and the heating component 25, and finally is discharged from the air nozzle 2. The fragrance can be replaced by rotating the screw cap 9, and the filter screen 10 can be removed and cleaned by rotating the container box 8.

[0037] After switch 6 is closed, control board 5 controls electromagnet 20 to close via delay circuit. Movable armature 18 is reset under the action of spring, thereby driving heating component 25 to retract towards the center and away from the outer wall of housing 1. At the same time, liquid in front piston cylinder 27 is forced into serpentine tube in insulation layer 30, and internal air is drawn into rear piston cylinder 27 to cool the outer wall of housing 1 and reduce the temperature of housing 1.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A folding hair dryer, comprising a housing (1), a nozzle (2) snapped onto the front side of the housing (1), a filter cover (3) provided on the rear side of the housing (1), a handle (4) rotatably connected to the housing (1) near the rear end, a circular control plate (5) provided at the rotatable position, the control plate (5) having several buttons, a switch (6) provided on the handle (4), and a fan (7) installed inside the housing (1), characterized in that, The rear side of the filter cover (3) is connected to a receiving box (8) by a thread, and the rear side of the receiving box (8) is connected to a screw cap (9) by an internal thread. A central column (11) is fixed in the middle of the front side of the receiving box (8), and the front end of the central column (11) is connected to a filter screen (10) by a thread. The filter cover (3) has filter holes on its side. Inside the filter cover (3), a heat sink (13) is provided directly opposite the filter holes. One side of the heat sink (13) is hinged to the filter cover (3), and the front end of the other side is slidably connected to the groove of the rotating ring (15). The front side of the rotating ring (15) is rotatably connected to the inclined rod (16), and the front end of the inclined rod (16) is rotatably connected to the broken line rod (17). A drive rod (28) is fixed in the middle of the broken rod (17). The front and rear ends of the drive rod (28) are connected to pistons. The pistons slide inside the piston cylinder (27). The piston cylinder (27) is connected to the insulation layer (30) through the connecting pipe (29). Two piston cylinders (27) are symmetrically arranged above and below the fan (7). Two sets of serpentine tubes are provided inside the insulation layer (30). The two ends of a single set of serpentine tubes are respectively connected to the front and rear ends of a single piston cylinder (27). The front end of the front piston cylinder (27) is connected to one end of the serpentine tube, and the rear end of the rear piston cylinder (27) is connected to the other end of the serpentine tube. The insulation layer (30) is fixed inside the shell (1). The shell (1) is positioned opposite the insulation layer (30). Heating components (25) are arranged in a circle on the inner wall of the housing (1). A straight rod (24) is rotatably connected to the middle of the inner side of the heating components (25). A disc (23) is rotatably connected to the end of the straight rod (24) away from the heating components (25). A screw sleeve (22) is fixedly connected to the rear side of the disc (23). The screw sleeve (22) is connected to the screw rod (21) through the internal thread. A movable armature (18) is fixedly connected to the rear end of the screw rod (21). The movable armature (18) is fixedly connected to the front end of the broken rod (17). An electromagnet (20) is provided behind the movable armature (18). The fan (7) and the electromagnet (20) are electrically connected to the control board (5) and the switch (6).

2. A folding hair dryer according to claim 1, characterized in that, The front side of the container (8) is provided with a vent.

3. A folding hair dryer according to claim 1, characterized in that, The rear side of the screw cap (9) is provided with a raised strip.

4. A folding hair dryer according to claim 1, characterized in that, The filter screen (10) has an annular groove on its rear side, and a stabilizing frame (12) is snapped into the annular groove. The rear end of the stabilizing frame (12) is fixed to the front side of the receiving box (8).

5. A folding hair dryer according to claim 1, characterized in that, The outer side of the container (8) is provided with a spiral air guide groove.

6. A folding hair dryer according to claim 1, characterized in that, The inclined rod (16) is tangential to the rotating ring (15), and the angle between the plane containing the inclined rod (16) and the rotating ring (15) is an acute angle.

7. A folding hair dryer according to claim 1, characterized in that, The broken bar (17), the diagonal bar (16), the rotating ring (15), and the heat sink (13) are all made of metal.

8. A folding hair dryer according to claim 1, characterized in that, The movable armature (18) and the screw sleeve (22) are both slidably connected inside the guide cover (19).

9. A folding hair dryer according to claim 1, characterized in that, The heating component (25) is slidably connected to the guide frame (26), and the guide frame (26) is symmetrically arranged in two sets with respect to the heating component (25).

Images