Foldable hair drier

Abstract

The utility model discloses a foldable hair dryer, which comprises a head part and a handle, and is characterized in that the head part and the handle are rotationally connected in a plane inclined to the axis of the handle, so that the foldable hair dryer is switched between a vertical shape and a bent shape; a heating wire is arranged in the head part; a power motor and an ion generator are arranged in the handle; an air inlet is formed in the bottom of the handle; the joint of the head and the handle is provided with an open cavity.

Description

Technical Field

[0001] This solution relates to the field of hair dryers, specifically a foldable hair dryer. Background Technology

[0002] In recent years, with my country's economic growth and the continuous improvement of people's living standards, hair dryers, as common household appliances, have entered thousands of households. However, most hair dryers currently have a roughly 90° angle between the nozzle and handle for easy use when drying hair. But with the development of technology, many hair dryers can achieve different functions by using different nozzle accessories, such as straightening, curling, and smoothing hair. When the hair dryer is working in these conditions, the original near-right-angle layout of the handle and nozzle is inconvenient for people to use. This invention innovates by allowing the hair dryer to be used in a straight or folded state to facilitate the use of different accessories. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a foldable hair dryer that can be used in a straight or folded state, making it convenient for people to use with different nozzles.

[0004] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A foldable hair dryer includes a head and a handle, characterized in that the head and handle are rotatably connected in a plane inclined to the axis of the handle, so that the foldable hair dryer can switch between a vertical and a bent shape; the head is provided with a heating wire; the handle includes a power motor and an ion generator, and the bottom of the handle is provided with an air inlet; the connection between the head and the handle is an open cavity.

[0006] Furthermore, the ion generator is electrically connected to a positive ion releasing plate and a negative ion releasing plate, which are fixed to the head and located in the cavity where the head connects to the handle. They are used to release positive and negative ions by ionizing the air with high voltage to eliminate static electricity in the hair.

[0007] Furthermore, a grid module is provided at the air inlet.

[0008] Furthermore, the grid module includes a large-aperture grid support and a small-aperture steel mesh stacked together.

[0009] Furthermore, the head air outlet is provided with an annular groove for connecting different nozzle accessories.

[0010] Furthermore, the annular groove is provided with at least two protruding axial limiting blocks for engaging with the snap-fit ​​groove on the mouthpiece accessory to achieve axial limiting and fixing of the mouthpiece accessory.

[0011] Furthermore, the annular groove also includes a circumferential limiting block that can be manually operated to extend and retract axially, which is used to cooperate with the limiting groove on the mouthpiece accessory to achieve circumferential limiting and fixing of the mouthpiece accessory.

[0012] Furthermore, the handle is also provided with a second locking key, which is fixedly connected to a locking arm. The locking arm is spring-loaded to the inner wall of the handle and can extend and retract along the axial direction of the handle. The locking arm is used to limit the head and the handle, so that the head and the handle are kept in a vertical or bent state.

[0013] Furthermore, the grid module is a large regular polygon grid support and a small regular polygon steel mesh that are hot-pressed or bonded together.

[0014] Furthermore, the handle is equipped with a one-touch cool air button, a temperature button, a fan speed button, a power button, and an LED display screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first state of the foldable hair dryer of this utility model;

[0016] Figure 2 This is a schematic diagram of the second state of the foldable hair dryer of this utility model;

[0017] Figure 3 This is a schematic diagram of the third state of the foldable hair dryer of this utility model;

[0018] Figure 4 This is a detailed structural diagram of the area near the first locking key of the foldable hair dryer of this utility model;

[0019] Figure 5 This is a detailed structural diagram of the area near the second locking key of the foldable hair dryer of this utility model;

[0020] Figure 6 This is a structural diagram of the foldable hair dryer of this utility model.

[0021] The following is a list of component names represented by the reference numerals in the attached diagram:

[0022] 1. Head; 2. Handle; 3. Heating wire; 4. Motor; 5. Ion generator; 6. Air inlet; 7. Open cavity; 8. Positive ion release plate; 9. Negative ion release plate; 10. Grid module; 11. Large hexagonal grid bracket; 12. Small hexagonal steel mesh; 13. First locking button; 14. Second locking button; 141. Locking arm; 15. Air outlet; 16. Temperature button; 17. Fan speed button; 18. Switch button; 19. One-touch cool air button; 20. Power cord; 21. Nozzle accessory; 22. Clip-on slot; 23. Limiting hole; 24. Circumferential limiting block; 25. Spring. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] like Figure 1-3 As shown, a foldable hair dryer includes a head 1 and a handle 2. A power cord 20 enters through the bottom of the handle 2. The head 1 and handle 2 are rotatably connected in a plane inclined to the axis of the handle 2, allowing the foldable hair dryer to switch between a vertical and a bent position. The head 1 contains a heating wire 3, a heating frame, a positive ion releasing electrode, and a negative ion releasing electrode. The air outlet 15 of the head 1 has an annular groove, and four protruding limiting blocks are provided in the annular groove, three of which are axial limiting blocks fixedly set in the annular groove, and one is a circumferential limiting block. 24. A first locking key 13 is provided on the outer circumferential surface of the head 1. The first locking key 13 is located inside the head via a spring 25, thus it has a pull-down elasticity and can move axially. The first locking key 13 is fixedly connected to the circumferential limiting block 24, so the first locking key 13 can drive the circumferential limiting block 24 to move axially along the head. Each mouthpiece accessory 21 has four snap-fit ​​grooves 22 on its base, which cooperate with and are fixed to the four limiting blocks of the head 1. The four limiting blocks work together to lock the different mouthpiece accessories 21 at the air outlet 15 of the head 1. Figure 4 As shown, when installing the mouthpiece accessory 21, first pull down the first locking key 13 to disengage the circumferential limiting block 24 from its limiting position, allowing the three axial limiting blocks to engage through the vertical portion of the locking groove 22 on the mouthpiece accessory 21. Then rotate the mouthpiece accessory 21 to engage the three axial limiting blocks into the horizontal portion of the locking groove 22. Then release the first locking key 13, which resets under the spring force and engages in the vertical portion of the locking groove 22. Thus, the three axial limiting blocks and one circumferential limiting block work together to fix the mouthpiece accessory 21 to the head 1. To remove the mouthpiece accessory 21, simply pull down the first locking key 13 and then rotate the mouthpiece accessory 21 in the opposite direction to remove it.

[0025] The handle 2 contains a power motor 4, a main control board, a button board, and an ion generator 5. The outer circumference of the handle 2 has a one-touch cool air button 19, a temperature button 16, a fan speed button 17, a start button, and a second lock button 14. The hair dryer has a bottom air intake, and the power cord 20 enters the handle 2 from the bottom.

[0026] like Figure 5As shown, the second locking button 14 on the handle 2 is a spring-loaded button. The second locking button 14 is fixedly connected to a locking arm 141. The locking arm 141 is spring-loaded to the inner wall of the handle 2 and can extend and retract along the axial direction of the handle 2. The locking arm 141 is used to limit the head 1 and the handle 2. That is, the contact part between the head 1 and the handle 2 is provided with a limiting hole 23. The locking arm 141 is adapted to the limiting hole 23 so that the head 1 and the handle 2 are kept in a vertical or bent state. When the button is pulled down, the second locking button 14 releases the limiting relationship between the head 1 and the handle 2, thereby allowing the head 1 to be turned so that the head 1 can rotate relative to the handle 2 in a plane inclined to the axis of the handle 2, so that the head 1 can be arranged coaxially with the handle 2 or in an angled posture.

[0027] The power motor 4, button panel, and plasma generator 5 are all connected to the main control board. The power motor 4 provides airflow. The button panel has a one-touch cool air button 19, a temperature button 16, a fan speed button 17, and a power switch button 18. The temperature button 16 adjusts the power of the heating wire 3 to control the airflow temperature, and the fan speed button 17 adjusts the input signal of the power motor 4 to control the airflow strength. When the hair dryer is blowing hot air, pressing the one-touch cool air button 19 will turn off the power to the heating wire 3, achieving an effect of no heating of the airflow. The plasma generator 5, via instructions from the main control board, is electrically connected to the positive ion release plate 8 and the negative ion release plate 9. The positive ion release plate 8 and the negative ion release plate 9 are located inside the head 1, in the open cavity 7 where the head 1 meets the handle 2. Both are supplied with high voltage, which ionizes the air passing through the gap between the positive ion release plate 8 and the negative ion release plate 9, releasing positive and negative ions, thereby eliminating static electricity on the hair and achieving a smooth hair effect.

[0028] Compared with existing technologies, this solution can work in two states: when the head 1 and the handle 2 are in a coaxial straight line state and when they are at a certain angle, so as to facilitate people's use when adapting to different mouthpiece accessories 21.

[0029] At the connection between the head 1 and the handle 2 of the hair dryer, an open fluid cavity structure design is adopted. The open fluid cavity structure refers to a structure without any obstruction to the flow of fluid in the cavity, which makes the flow of air in the hair dryer cavity less obstructed, the air flow rate is large and the air flow speed is fast, so as to generate stronger wind speed and air volume at the air outlet, and achieve higher efficiency in hair styling and drying.

[0030] An innovative grid module 10 is designed between the power motor 4 and the air inlet 6. The grid module 10 mainly consists of a large hexagonal grid support 11 and a small hexagonal steel mesh 12, which are bonded together with strong adhesive or hot pressing to form the grid module 10. It can effectively filter and disperse the fluid in the air inlet 6, blocking some air impurities to the outside, and also playing a role in dispersing and guiding the airflow, thereby improving the flow efficiency of the airflow in the entire handle 2 space and ensuring the safety of the power motor 4.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foldable hair dryer comprising a head and a handle, characterized in that, The head and handle are rotatably connected in a plane inclined to the handle axis, allowing the foldable hair dryer to switch between a vertical and a bent shape; the head is equipped with a heating wire; the handle contains a power motor and an ion generator, and the bottom of the handle is equipped with an air inlet; the connection between the head and the handle is an open cavity design.

2. The foldable hair dryer of claim 1, wherein, The ion generator is electrically connected to a positive ion releasing plate and a negative ion releasing plate. The positive ion releasing plate and the negative ion releasing plate are fixed to the head and located in the cavity where the head is connected to the handle. They are used to release positive ions and negative ions by ionizing the air with high voltage to eliminate static electricity in the hair.

3. The foldable hair dryer according to claim 1 or 2, characterized in that, The air inlet is equipped with a grid module.

4. The foldable hair dryer of claim 3, wherein, The grid module includes a large-hole grid support and a small-hole steel mesh stacked together.

5. The foldable hair dryer according to any one of claims 1-3, wherein, The head air outlet is provided with an annular groove for connecting different nozzle accessories.

6. The foldable hair dryer of claim 5, wherein, The annular groove is provided with at least two protruding axial limiting blocks, which are used to cooperate with the snap-fit ​​groove on the mouthpiece accessory to achieve axial limiting and fixing of the mouthpiece accessory.

7. The foldable hair dryer of claim 6, wherein, The annular groove also includes a manually operable telescopic circumferential limiting block, which is used to cooperate with the limiting groove on the mouthpiece accessory to achieve circumferential limiting and fixing of the mouthpiece accessory.

8. The foldable hair dryer of any one of claims 1-3, wherein, The handle is also provided with a second locking key, which is fixedly connected to a locking arm. The locking arm is spring-loaded to the inner wall of the handle and can extend and retract along the axial direction of the handle. The locking arm is used to limit the head and the handle, so that the head and the handle are kept in a vertical or bent state.

9. The foldable hair dryer of claim 3 or 4, wherein, The grid module consists of a large regular polygon grid support and a small regular polygon steel mesh that are hot-pressed or bonded together.

10. The foldable hair dryer of claim 1 or 2, wherein, The handle is equipped with a one-touch cool air button, a temperature button, a fan speed button, a power button, and an LED display screen.

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