Foldable hot air comb

Abstract

The utility model relates to the technical field of hot air blowing electric appliances, and discloses a foldable hot air comb which comprises a hollow straight-barrel-shaped main machine, the main machine comprises an air outlet assembly, a handle assembly and a connecting assembly, the connecting assembly is connected between the air outlet assembly and the handle assembly, and a first rotary folding mechanism is arranged between the air outlet assembly and the connecting assembly. A second rotary folding mechanism is arranged between the handle assembly and the connecting assembly; the air outlet assembly and the connecting assembly rotate relatively through the first rotary folding mechanism. The handle assembly and the connecting assembly rotate relatively through the second rotary folding mechanism. According to the foldable hot air comb, the main machine is switched between the hot air comb form and the air blower form through the first rotary folding mechanism, the function of the air blower can be achieved without assembling extra accessories, use is convenient, and labor is saved in operation; the handle assembly is folded through the second rotary folding mechanism, and storage and carrying are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-air blower electrical appliances, in particular to a foldable hot-air comb. Background Art

[0002] A hot air comb is an electrical tool that combines a hair dryer and a comb in one. It can quickly dry and style hair through electric heating, protecting the hair to the maximum extent. Some existing hot air combs have different functions achieved by selecting and assembling different accessories on their main body parts. For example, a comb cover accessory is assembled to achieve the function of a hot air comb; a hair dryer outlet accessory is assembled to achieve the function of a hair dryer. When users use such hot air combs, it is troublesome to remove and replace accessories, and the operation is cumbersome. The excessive number of accessories will cause the accessories to be difficult to store and inconvenient to carry. In addition, some existing hot air combs have long main body parts, which are not easy to store and carry, and the user experience is not good. Utility Model Content

[0003] To solve at least one aspect of the above problems, the utility model provides a foldable hot air comb, comprising: a main unit in a hollow straight cylindrical shape, the main unit comprising an air outlet assembly, a handle assembly and a connecting assembly, the connecting assembly being connected between the air outlet assembly and the handle assembly, a first rotating folding mechanism being arranged between the air outlet assembly and the connecting assembly, and a second rotating folding mechanism being arranged between the handle assembly and the connecting assembly; the air outlet assembly and the connecting assembly are relatively rotated by the first rotating folding mechanism so that the central axis of the air outlet assembly coincides with or is perpendicular to the central axis of the connecting assembly; the handle assembly and the connecting assembly are relatively rotated by the second rotating folding mechanism so that the central axis of the handle assembly coincides with or is perpendicular to the central axis of the connecting assembly; the foldable hot air comb of the utility model switches the main unit between the hot air comb form and the hair dryer form by the first rotating folding mechanism, and can realize the hair dryer function without assembling additional accessories, is easy to use and labor-saving to operate; the handle assembly is folded by the second rotating folding mechanism for easy storage and carrying.

[0004] Optionally, the first rotating and folding mechanism includes a first inclined plane arranged on the air outlet component and a second inclined plane arranged on the connecting component, and the first inclined plane and the second inclined plane are parallel to each other and can rotate relative to each other.

[0005] Optionally, a first arc-shaped limiting protrusion is obliquely provided on the air outlet component, a first limiting groove corresponding to the first limiting protrusion is provided on the connecting component, and the first limiting protrusion slides along the first limiting groove.

[0006] Optionally, the air outlet assembly is in the first position when its central axis coincides with the connecting assembly's central axis, and is in the second position when its central axis is perpendicular to the connecting assembly's central axis. The first rotating and folding mechanism further includes a first locking and unlocking device. When in the first position, the air outlet assembly and the connecting assembly are locked / unlocked by the first locking and unlocking device. When in the second position, the air outlet assembly and the connecting assembly are locked / unlocked by the first locking and unlocking device.

[0007] Optionally, the first locking and unlocking device includes a first button, a first locking block, a first elastic member and a first locking groove, the first button is connected to the first locking block, the first button and the first locking block are both slidably installed on the air outlet assembly, the first button and the first locking block slide synchronously along the central axis direction of the air outlet assembly, one end of the first locking block corresponds to the first locking groove, the first elastic member is placed between the other end of the first locking block and the air outlet assembly, and two first locking grooves are provided and both are provided on the connecting assembly.

[0008] Optionally, the second rotating and folding mechanism includes a third inclined surface arranged on the handle assembly and a fourth inclined surface arranged on the connecting assembly, the third inclined surface and the fourth inclined surface are parallel to each other and can rotate relative to each other; a second arc-shaped limiting protrusion is obliquely arranged on the handle assembly, and a second limiting groove corresponding to the second limiting protrusion is arranged on the connecting assembly, and the second limiting protrusion slides along the second limiting groove.

[0009] Optionally, when the central axis of the handle assembly coincides with the central axis of the connecting assembly, it is the third position; when the central axis of the handle assembly and the central axis of the connecting assembly are perpendicular to each other, it is the fourth position; the second rotating and folding mechanism also includes a second locking and unlocking device; when in the third position, the handle assembly and the connecting assembly are locked / unlocked by the second locking and unlocking device; when in the fourth position, the handle assembly and the connecting assembly are locked / unlocked by the second locking and unlocking device; the second locking and unlocking device includes a second dial button, a second locking block, a second elastic member and a second locking groove, the second dial button is connected to the second locking block, the second dial button and the second locking block are both slidably installed on the handle assembly, the second dial button and the second locking block slide synchronously along the central axis direction of the handle assembly, one end of the second locking block corresponds to the second locking groove, the second elastic member is placed between the other end of the second locking block and the handle assembly, and two second locking grooves are provided and both are provided on the connecting assembly.

[0010] Optionally, an air duct is provided on the main unit, and the air duct includes a first air duct in the handle assembly, a second air duct in the connecting assembly, and a third air duct in the air outlet assembly, the first air duct and the third air duct are connected through the second air duct, a plurality of air inlet holes are provided at the lower portion of the first air duct, a main board is provided in the first air duct, a fan, an annular cavity and a heating wire are provided in the third air duct, an air outlet is connected to the upper portion of the third air duct, the annular cavity is provided between the air outlet and the fan, and the heating wire is placed in the annular cavity.

[0011] Optionally, a display screen and a negative ion generator are provided in the second air duct, a first noise reduction mesh is fixedly provided in the air outlet assembly, the first noise reduction mesh is placed between the fan and the second air duct, a second noise reduction mesh is fixedly provided in the connecting assembly, and the second noise reduction mesh is obliquely provided on a side close to the handle assembly.

[0012] Optionally, an air outlet accessory is detachably provided on the upper end of the air outlet component, and a disassembly and assembly mechanism is provided between the air outlet accessory and the air outlet component, the disassembly and assembly mechanism includes a positioning block, a positioning groove, a locking block and a third elastic member, the positioning block is provided on the air outlet component, the positioning groove corresponds to the positioning block and is provided on the air outlet accessory, the locking block is connected to a third dial button, and the third elastic member is placed between the air outlet component and the locking block; when the positioning block falls into the positioning groove, the positioning block is locked and limited in the positioning groove by the locking end of the locking block.

[0013] Compared with the prior art, the foldable hot air comb of the utility model switches the main unit between the hot air comb form and the hair dryer form through the first rotating folding mechanism, and can realize the hair dryer function without assembling additional accessories, which is convenient to use and labor-saving to operate; the handle assembly is folded through the second rotating folding mechanism for easy storage and carrying; a first locking and unlocking device is provided, which can lock and position the air outlet assembly and the connecting assembly in the air comb form and the storage form to avoid the air outlet assembly and the connecting assembly from rotating erroneously, and the use is reliable; the heating wire is placed in the annular cavity, so that when the cold air passes through the annular cavity, it can quickly take away the heat of the heating wire and improve the heating effect; a display screen and a negative ion generator are provided in the second air duct, so that the blown air carries negative ions, thereby protecting the hair; the display screen can display information such as temperature and wind force, and the use is more intuitive; two noise reduction meshes are provided, and when the chaotic airflow flows through the noise reduction meshes, the turbulence phenomenon can be reduced, thereby reducing the noise, and the use experience is good; a disassembly and assembly mechanism is provided between the air outlet accessories and the air outlet assembly, which is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the foldable hot air comb of the utility model;

[0015] Figure 2 It is a cross-sectional view of the foldable hot air comb of the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] Figure 4 It is a cross-sectional view of the foldable hot air comb air outlet component of the utility model;

[0018] Figure 5 This is a structural schematic diagram of the first locking block of the foldable hot air comb of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the foldable hot air comb connection assembly of the utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the heating wire part of the foldable hot air comb of the utility model;

[0021] Figure 8 It is a structural schematic diagram of a foldable hot air comb hair dryer of the utility model;

[0022] Fig. 9 This is a schematic diagram of the structure of the foldable hot air comb of the utility model in a storage state;

[0023] Fig.10 This is a schematic diagram of the structure of the foldable hot air comb of the utility model after the air outlet accessories are assembled;

[0024] Fig.11 This is a schematic diagram of the structure of the foldable hot air comb main unit and the air outlet accessories of the utility model when they are separated;

[0025] Fig.12 for Fig.11 Enlarged view of middle part B;

[0026] Fig.13 This is a cross-sectional view of the foldable hot air comb of the utility model after the air outlet accessories are assembled;

[0027] Fig.14 for Fig.13 Enlarged view of the middle C part;

[0028] The names of the components corresponding to the various reference numerals in the figure are: 1 is the main unit, 2 is the air outlet assembly, 201 is the first limiting protrusion, 3 is the handle assembly, 301 is the second limiting protrusion, 4 is the connecting assembly, 401 is the first limiting groove, 402 is the second limiting groove, 51 is the first inclined plane, 52 is the second inclined plane, 53 is the third inclined plane, 54 is the fourth inclined plane, 61 is the first dial button, 62 is the first locking block, 63 is the first elastic member, 64 is the first locking groove, 71 is the second dial button, 72 is the second locking block, 73 is the second elastic member, 74 is the second locking groove, 81 is the first air duct, 82 is the first air duct, The second air duct, 83 is the third air duct, 831 is the air outlet, 91 is the air inlet, 92 is the main board, 93 is the fan, 94 is the annular cavity, 95 is the display screen, 96 is the negative ion generator, 97 is the first noise reduction mesh, 98 is the second noise reduction mesh, 99 is the heating wire, 10 is the air outlet accessory, 11 is the positioning block, 12 is the positioning groove, 13 is the locking block, 131 is the locking end, 14 is the third elastic member, 15 is the third dial button, 16 is the power cord, 17 is the first mica tube, 18 is the second mica tube, 19 is the bracket, 20 is the fixing plate, 21 is the positioning groove, and 22 is the mechanical power switch. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] See also Figure 1-Figure 14The utility model provides a foldable hot air comb, comprising: a main unit 1 in a hollow straight cylindrical shape, the main unit 1 comprising an air outlet component 2, a handle component 3 and a connecting component 4, the upper end of the air outlet component 2 is used for air outlet, and the handle component 3 is used for holding by the user; the connecting component 4 is connected between the air outlet component 2 and the handle component 3, a first rotating folding mechanism is provided between the air outlet component 2 and the connecting component 4, and a second rotating folding mechanism is provided between the handle component 3 and the connecting component 4; the air outlet component 2 and the connecting component 4 rotate relative to each other through the first rotating folding mechanism, so that the central axis of the air outlet component 2 coincides with the central axis of the connecting component 4 or is perpendicular to each other; the handle component 3 and the connecting component 4 rotate relative to each other through the second rotating folding mechanism, so that the central axis of the handle component 3 coincides with the central axis of the connecting component 4 or is perpendicular to each other; the hot air comb is provided by the user's hand, and the hand is provided by the user's hand. When in the combing form, the central axes of the air outlet component 2, the handle component 3 and the connecting component 4 coincide with each other; when switched to the hair dryer form, the central axis of the air outlet component 2 and the central axis of the connecting component 4 are perpendicular to each other, and the operation is convenient without the need for additional accessories; when switched to the storage state, the central axis of the air outlet component 2 and the central axis of the connecting component 4 are perpendicular to each other, and at the same time, the central axis of the handle component 3 and the central axis of the connecting component 4 are perpendicular to each other. In this state, the length of the main unit is greatly reduced, and the shape is compact, which is convenient for storage and carrying; the foldable hot air comb of the utility model switches the main unit between the hot air comb form and the hair dryer form through the first rotating folding mechanism, and the hair dryer function can be realized without the need to assemble additional accessories, which is convenient to use and labor-saving to operate; the handle assembly is folded through the second rotating folding mechanism for easy storage and carrying.

[0033] See also Figure 1-Figure 9The first rotating and folding mechanism includes a first inclined surface 51 arranged on the air outlet component 2 and a second inclined surface 52 arranged on the connecting component 4. The first inclined surface 51 and the second inclined surface 52 are parallel to each other and can rotate relative to each other. In this embodiment, the first inclined surface 51 and the second inclined surface 52 are both inclined at 45 degrees, and the rotation is smooth; an arc-shaped first limiting protrusion 201 is inclinedly arranged on the air outlet component 2, and a first limiting groove 401 corresponding to the first limiting protrusion 201 is arranged on the connecting component 4. The first limiting protrusion 201 is slidably engaged with the first limiting groove 401. When the air outlet component 2 rotates relative to the connecting component 4, the first limiting protrusion 201 slides along the first limiting groove 401, and the rotation is smooth; When the central axis of the air outlet component 2 coincides with the central axis of the connecting component 4, it is in the first position; when the central axis of the air outlet component 2 and the central axis of the connecting component 4 are perpendicular to each other, it is in the second position. The first rotating and folding mechanism also includes a first locking and unlocking device; when in the first position, the air outlet component 2 and the connecting component 4 are locked / unlocked by the first locking and unlocking device; when in the second position, the air outlet component 2 and the connecting component 4 are locked / unlocked by the first locking and unlocking device; a first locking and unlocking device is provided, which can lock and position the air outlet component 2 and the connecting component 4 in the wind comb form and the storage form, thereby avoiding accidental rotation of the air outlet component 2 and the connecting component 4, and is reliable to use.

[0034] See also Figure 1-Figure 6 The first locking and unlocking device includes a first dial button 61, a first locking block 62, a first elastic member 63 and a first locking groove 64, wherein the first elastic member 63 is a first spring; the first dial button 61 is connected to the first locking block 62, and the first locking block 62 is driven to slide synchronously by dialing the first dial button 61, the first dial button 61 slides up to unlock, and is reset downward by the first elastic member 63; the first dial button 61 and the first locking block 62 are both slidably mounted on the air outlet component 2, the first dial button 61 and the first locking block 62 slide synchronously along or approximately along the central axis direction of the air outlet component 2, and one end of the first locking block 62 is aligned with the first locking groove 64. 4, the first elastic member 63 is placed between the other end of the first locking block 62 and the air outlet component 2, and two first locking grooves 64 are provided and both are provided on the connecting component 4; when the air outlet component 2 and the connecting component 4 are in the first position, the first locking block 62 is engaged and locked with one of the first locking grooves 64; when the air outlet component 2 and the connecting component 4 are in the second position, the first locking block 62 is engaged and locked with the other first locking groove 64. The structural design is reasonable, and the locking / unlocking function of the air outlet component 2 and the connecting component 4 in the first position and the second position can be realized by only one first dial button 61, which is convenient to operate.

[0035] See also Figure 2-Figure 6The second rotating folding mechanism includes a third inclined surface 53 arranged on the handle assembly 3 and a fourth inclined surface 54 arranged on the connecting assembly 4. The third inclined surface 53 and the fourth inclined surface 54 are parallel to each other and can rotate relative to each other. An arc-shaped second limiting protrusion 301 is obliquely arranged on the handle assembly 3, and a second limiting groove 402 corresponding to the second limiting protrusion 301 is arranged on the connecting assembly 4. The second limiting protrusion 301 slides along the second limiting groove 402. When the central axis of the handle assembly 3 coincides with the central axis of the connecting assembly 4, it is the third position, and the central axis of the handle assembly 3 is in the third position. When the line is perpendicular to the central axis of the connecting component 4, it is the fourth position, and the second rotating and folding mechanism also includes a second locking and unlocking device; when in the third position, the handle component 3 and the connecting component 4 are locked / unlocked by the second locking and unlocking device; when in the fourth position, the handle component 3 and the connecting component 4 are locked / unlocked by the second locking and unlocking device; a second locking and unlocking device is provided, which can lock and position the handle component 3 and the connecting component 4 in the wind comb form and the storage form, so as to avoid the handle component 3 and the connecting component 4 from rotating by mistake, and the use is reliable; the second The locking and unlocking device includes a second dial button 71, a second locking block 72, a second elastic member 73 and a second locking groove 74. The second elastic member 73 is a second spring. The second dial button 71 slides down to unlock and is reset upward by the second elastic member 73. The second dial button 71 is connected to the second locking block 72. The second dial button 71 and the second locking block 72 are both slidably mounted on the handle assembly 3. The second dial button 71 and the second locking block 72 slide synchronously along the central axis direction of the handle assembly 3. One end of the second locking block 72 corresponds to the second locking groove 74. The second elastic member 73 is placed in the second There are two second locking grooves 74 between the other end of the locking block 72 and the handle assembly 3, and both are arranged on the connecting assembly 4; when the handle assembly 3 and the connecting assembly 4 are in the third position, the second locking block 72 is engaged and locked with one of the second locking grooves 74; when the handle assembly 3 and the connecting assembly 4 are in the fourth position, the second locking block 72 is engaged and locked with the other second locking groove 74. The structural design is reasonable, and the locking / unlocking function of the handle assembly 3 and the connecting assembly 4 in the third position and the fourth position can be realized by only one second dial button 71, which is convenient to operate.

[0036] See also Figure 2-Figure 4The host 1 is provided with an air duct, which includes a first air duct 81 in the handle component 3, a second air duct 82 in the connecting component 4 and a third air duct 83 in the air outlet component 2. The first air duct 81 and the third air duct 83 are connected through the second air duct 82. A plurality of air inlet holes 91 are provided at the lower part of the first air duct 81. A main board 92 is provided in the first air duct 81. A fan 93, an annular cavity 94 and an electric heating wire 99 are provided in the third air duct 83. When the fan 93 is working, it takes away the heat of the main board 92 and other electrical components to avoid overheating and damage of the electrical components. At the same time, this part of the heat can be used to assist in heating the air; the fan 93 includes a high-speed motor and fan blades, and the electric heating wire 99 is placed in the annular cavity, so that when the cold air passes through the annular cavity 94, it can quickly take away the heat of the electric heating wire 99, thereby improving the heating effect; a first mica tube 17 and a second mica tube 18 are fixedly provided in the first air duct 81, and the annular cavity 94 is formed between the first mica tube 17 and the second mica tube 18. The mica material is adopted, which is resistant to high The heat resistance is good and it is not easy to be damaged by overheating; the heating wire 99 is annular and wavy and is provided with multiple ones, which increases the contact area with the air and improves the heating effect; the upper part of the third air duct 83 is connected with an air outlet 831, and the annular cavity 94 is arranged between the air outlet 831 and the fan 93, and the heating wire 99 is placed in the annular cavity 94; the host 1 is connected to the external power supply through the power cord 16, and the mechanical power switch 22 on the host 1 is closed at the same time, and the fan 93 works; the power cord 16 can be adaptively rotated 360 degrees by the user to avoid the problems of torsion damage, tearing, etc. caused by the power cord 16 not being able to rotate; the temperature, wind speed and other functions are controlled by the control buttons on the host 1. This control function is a prior art and is not repeated here; the heating wire 99 is arranged on the bracket 19 on the inner side of the second mica tube 18, and a plurality of fixing plates 20 are arranged in an annular manner on the bracket 19, and a positioning groove 21 for positioning the heating wire 99 is arranged on the fixing plate 20, so that the heating wire 99 is not easy to move and the heating is stable.

[0037] See also Figure 1-Figure 3 A display screen 95 and a negative ion generator 96 are provided in the second air duct 82, so that the blown wind carries negative ions, thereby protecting the hair; the display screen can display information such as temperature and wind force, and is more intuitive to use; a first noise reduction mesh 97 is fixedly provided in the air outlet component 2, and the first noise reduction mesh 97 is placed between the fan 93 and the second air duct 82, and a second noise reduction mesh 98 is fixedly provided in the connecting component 4, and the second noise reduction mesh 98 is tilted and arranged on the side close to the handle component 3. Two noise reduction meshes are provided, and when the chaotic airflow flows through the noise reduction mesh, the turbulence phenomenon can be reduced, thereby reducing noise, and the user experience is good.

[0038] See also Figure 11-Figure 14The upper end of the air outlet component 2 is detachably provided with an air outlet accessory 10, which can be selected as an air outlet comb set accessory, an air outlet plate comb accessory or other accessories. A disassembly and assembly mechanism is provided between the air outlet accessory 10 and the air outlet component 2, and the disassembly and assembly mechanism includes a positioning block 11, a positioning groove 12, a locking block 13 and a third elastic member 14, and the third elastic member 14 is a third spring; the positioning block 11 is provided on the air outlet component 2, the positioning groove 12 corresponds to the positioning block 11 and is provided on the air outlet accessory 10, the locking block 13 is connected to the third dial button 15, and the third elastic member 14 is placed between the air outlet component 2 and the locking block 13; when the air outlet accessory 10 is installed When it is mounted on the upper end of the air outlet component 2, that is, when the positioning block 11 falls into the positioning groove 12, the elastic force of the third elastic member 14 drives the locking end 131 of the locking block 13 to lock the positioning block 11 in the positioning groove 12; when it is necessary to disassemble the air outlet accessory 10 and the air outlet component 2, turn the third dial button 15 to make the locking end 131 retract inward and away from the positioning block 11. At this time, the positioning block 11 is unlocked and can be disengaged from the positioning groove 12, thereby removing the air outlet accessory 10; when installing the air outlet accessory 10, first slide down the third dial button 15, then assemble the air outlet accessory 10 to the corresponding position, and finally release the third dial button 15, which is easy to operate.

[0039] The foldable hot air comb of the utility model switches the main unit between the hot air comb form and the hair dryer form through the first rotating folding mechanism, and can realize the hair dryer function without assembling additional accessories, is easy to use and labor-saving to operate; the handle assembly is folded through the second rotating folding mechanism, which is convenient for storage and carrying; a first locking and unlocking device is provided, which can lock and position the air outlet assembly and the connecting assembly in the air comb form and the storage form, so as to avoid the air outlet assembly and the connecting assembly from rotating erroneously, and is reliable to use; the heating wire is placed in the annular cavity, so that when the cold air passes through the annular cavity, it can quickly take away the heat of the heating wire, thereby improving the heating effect; a display screen and a negative ion generator are provided in the second air duct, so that the blown air carries negative ions, thereby protecting the hair; the display screen can display information such as temperature and wind force, and is more intuitive to use; two noise reduction meshes are provided, and when the chaotic airflow flows through the noise reduction meshes, the turbulence phenomenon can be reduced, thereby reducing the noise, and the user experience is good; a disassembly and assembly mechanism is provided between the air outlet accessory and the air outlet assembly, and disassembly and assembly are convenient.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A foldable hot air comb, characterized in that: include: A main unit (1) in the shape of a hollow straight cylinder, the main unit (1) comprising an air outlet component (2), a handle component (3) and a connecting component (4), the connecting component (4) being connected between the air outlet component (2) and the handle component (3), a first rotating and folding mechanism being arranged between the air outlet component (2) and the connecting component (4), and a second rotating and folding mechanism being arranged between the handle component (3) and the connecting component (4); the air outlet component (2) and the connecting component (4) are relatively rotated through the first rotating and folding mechanism, so that the central axis of the air outlet component (2) coincides with the central axis of the connecting component (4) or is perpendicular to each other; the handle component (3) and the connecting component (4) are relatively rotated through the second rotating and folding mechanism, so that the central axis of the handle component (3) coincides with the central axis of the connecting component (4) or is perpendicular to each other.

2. The foldable hot air comb according to claim 1, characterized in that: The first rotating and folding mechanism comprises a first inclined surface (51) arranged on the air outlet component (2) and a second inclined surface (52) arranged on the connecting component (4); the first inclined surface (51) and the second inclined surface (52) are parallel to each other and can rotate relative to each other.

3. The foldable hot air comb according to claim 1, characterized in that: The air outlet assembly (2) is provided with an arc-shaped first limiting protrusion (201) at an angle, and the connecting assembly (4) is provided with a first limiting groove (401) corresponding to the first limiting protrusion (201), and the first limiting protrusion (201) slides along the first limiting groove (401).

4. The foldable hot air comb according to claim 1, characterized in that: When the central axis of the air outlet component (2) coincides with the central axis of the connecting component (4), it is in the first position; when the central axis of the air outlet component (2) and the central axis of the connecting component (4) are perpendicular to each other, it is in the second position. The first rotating and folding mechanism also includes a first locking and unlocking device. When in the first position, the air outlet component (2) and the connecting component (4) are locked / unlocked by the first locking and unlocking device; when in the second position, the air outlet component (2) and the connecting component (4) are locked / unlocked by the first locking and unlocking device.

5. The foldable hot air comb according to claim 4, characterized in that: The first locking and unlocking device comprises a first dial button (61), a first locking block (62), a first elastic member (63) and a first locking groove (64); the first dial button (61) is connected to the first locking block (62); the first dial button (61) and the first locking block (62) are both slidably mounted on the air outlet component (2); the first dial button (61) and the first locking block (62) slide synchronously along the central axis direction of the air outlet component (2); one end of the first locking block (62) corresponds to the first locking groove (64); the first elastic member (63) is disposed between the other end of the first locking block (62) and the air outlet component (2); and two first locking grooves (64) are provided and are both provided on the connecting component (4).

6. The foldable hot air comb according to claim 1, characterized in that: The second rotating and folding mechanism comprises a third inclined surface (53) arranged on the handle assembly (3) and a fourth inclined surface (54) arranged on the connecting assembly (4); the third inclined surface (53) and the fourth inclined surface (54) are parallel to each other and can rotate relative to each other; an arc-shaped second limiting protrusion (301) is obliquely arranged on the handle assembly (3); a second limiting groove (402) corresponding to the second limiting protrusion (301) is arranged on the connecting assembly (4); and the second limiting protrusion (301) slides along the second limiting groove (402).

7. The foldable hot air comb according to claim 1, characterized in that: When the central axis of the handle assembly (3) coincides with the central axis of the connecting assembly (4), it is in the third position; when the central axis of the handle assembly (3) and the central axis of the connecting assembly (4) are perpendicular to each other, it is in the fourth position; the second rotating and folding mechanism also includes a second locking and unlocking device; when in the third position, the handle assembly (3) and the connecting assembly (4) are locked / unlocked by the second locking and unlocking device; when in the fourth position, the handle assembly (3) and the connecting assembly (4) are locked / unlocked by the second locking and unlocking device; the second locking and unlocking device includes a second dial button (71), a second locking block (72), and a second locking block (73). Two elastic members (73) and a second locking groove (74), the second dial button (71) is connected to the second locking block (72), the second dial button (71) and the second locking block (72) are both slidably mounted on the handle assembly (3), the second dial button (71) and the second locking block (72) slide synchronously along the central axis direction of the handle assembly (3), one end of the second locking block (72) corresponds to the second locking groove (74), the second elastic member (73) is arranged between the other end of the second locking block (72) and the handle assembly (3), and two second locking grooves (74) are arranged and are both arranged on the connecting assembly (4).

8. The foldable hot air comb according to claim 1, characterized in that: The host (1) is provided with an air duct, which includes a first air duct (81) in the handle component (3), a second air duct (82) in the connecting component (4) and a third air duct (83) in the air outlet component (2); the first air duct (81) and the third air duct (83) are connected through the second air duct (82); a plurality of air inlet holes (91) are provided at the lower part of the first air duct (81); a main board (92) is provided in the first air duct (81); a fan (93), an annular cavity (94) and an electric heating wire (99) are provided in the third air duct (83); an air outlet (831) is connected at the upper part of the third air duct (83); the annular cavity (94) is provided between the air outlet (831) and the fan (93); and the electric heating wire (99) is placed in the annular cavity (94).

9. The foldable hot air comb according to claim 8, characterized in that: A display screen (95) and a negative ion generator (96) are arranged in the second air duct (82); a first noise reduction mesh (97) is fixedly arranged in the air outlet assembly (2); the first noise reduction mesh (97) is placed between the fan (93) and the second air duct (82); a second noise reduction mesh (98) is fixedly arranged in the connection assembly (4); the second noise reduction mesh (98) is tiltedly arranged on a side close to the handle assembly (3).

10. The foldable hot air comb according to any one of claims 1 to 9, characterized in that: The upper end of the air outlet component (2) is detachably provided with an air outlet accessory (10), and a disassembly and assembly mechanism is provided between the air outlet accessory (10) and the air outlet component (2), and the disassembly and assembly mechanism comprises a positioning block (11), a positioning groove (12), a locking block (13) and a third elastic member (14), wherein the positioning block (11) is provided on the air outlet component (2), the positioning groove (12) corresponds to the positioning block (11) and is provided on the air outlet accessory (10), the locking block (13) is connected with a third dial button (15), and the third elastic member (14) is placed between the air outlet component (2) and the locking block (13); when the positioning block (11) falls into the positioning groove (12), the positioning block (11) is locked and limited in the positioning groove (12) by the locking end (131) of the locking block (13).

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