Electric heating hair straightening comb

Abstract

The invention relates to an electric heating hair straightening comb which comprises a comb tooth part and a handheld part. The comb tooth part comprises a first shell, metal heat conduction comb teeth and an electric heating assembly installed in the first shell. The handheld part comprises a second shell and a control circuit board mounted in the second shell; the electric heating component is electrically connected with the control circuit board; the electric heating hair straightening comb is characterized in that the front end of the handheld part and the tail end of the comb tooth part are rotatably connected through a connecting mechanism on the basis of horizontal placement of the electric heating hair straightening comb, and the handheld part and the comb tooth part can relatively rotate in the horizontal direction, are in a step shape when being unfolded and are combined into a whole when being folded. Compared with the prior art, the electric heating hair straightening comb has the advantages of being high in safety, convenient to carry, good in using effect and the like.

Description

Technical Field

[0001] The invention relates to a daily-use comb, in particular to an electric heating hair straightening comb. Background Art

[0002] Everyone loves beauty. With the improvement of living standards, people have higher and higher requirements for their own image. Electric straight hair combs, as a household hairdressing appliance that can shape or straighten hair while combing it, are becoming more and more popular. Electric straight hair combs in the prior art are usually a shell, and the front and back sections of the comb are divided into a comb tooth part and a hand-held part. Such electric straight hair combs have the following shortcomings: 1. Since the comb tooth part and the hand-held part are flat and integrated, the user may accidentally touch the high-temperature area of ​​the comb tooth part with his fingers during operation, which poses a safety hazard; 2. It occupies a relatively large space and is not easy to carry; 3. Also, since the comb tooth part and the hand-held part are in a flat state, the user must raise his arm to raise the hand-held part when using it, otherwise the hand may easily touch and rub against the cheek and other parts (compare with reference Figure 1 and Fig. 9 As shown), it affects the user experience and the use effect is poor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an electric heating straight hair comb which is highly safe, easy to carry and has good use effect in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve the technical problem is: Provided is an electric heating hair straightening comb, comprising a comb tooth portion and a hand-held portion; the comb tooth portion further comprises a first shell, metal heat-conducting comb teeth and an electric heating component installed in the first shell; the hand-held portion comprises a second shell and a control circuit board installed in the second shell; the electric heating component is electrically connected to the control circuit board; with the electric heating hair straightening comb being placed horizontally as a reference, the front end of the hand-held portion and the rear end of the comb tooth portion are rotatably connected by means of a connecting mechanism, the hand-held portion and the comb tooth portion can rotate relative to each other in a horizontal direction, the two are in a stepped shape when opened, and are integrated into a whole when folded.

[0005] Further, the connecting mechanism includes a column, a torsion spring, a torsion spring fixing sleeve, a locking piece, a spring and a push button, the column is formed on the first shell, and a through hole for the column to pass through is opened on the second shell; the main body of the torsion spring is fixed in the torsion spring fixing sleeve, and the torsion spring fixing sleeve together with the torsion spring is fixed to the column by means of a screw set, one fixing leg of the torsion spring is fixed in the bayonet of the torsion spring fixing sleeve, and the other fixing leg of the torsion spring is extended and fixed in a slot opened in the second shell, the push button is connected to the end of the locking piece, one end of the spring is installed on the locking piece and the other end is connected to the inner wall of the second shell, the outer surface of the torsion spring fixing sleeve is provided with two symmetrical positioning grooves, and the interior of the locking piece is provided with a positioning protrusion adapted to the positioning groove; the column, torsion spring, torsion spring fixing sleeve, locking piece, spring and push button are accommodated in the second shell together, and the outer end of the push button is exposed to the outer surface of the second shell.

[0006] Furthermore, the electric heating component includes an electric heating plate and a heating plate bracket.

[0007] Furthermore, a heat insulating sheet is provided between the electric heating sheet and the heating sheet bracket; the electric heating sheet is a PTC heating sheet, an MCH ceramic heating sheet or a resistance wire heating sheet.

[0008] Furthermore, a negative ion generator is provided in the second shell, and the negative ion generator is electrically connected to the control circuit board.

[0009] Furthermore, the first shell and the second shell are both in the shape of a circular racetrack.

[0010] Furthermore, the metal heat-conducting comb teeth are also provided with a comb tooth sleeve, and the cross-section of the comb tooth sleeve is rhombus-shaped.

[0011] Furthermore, a display module is provided in the second shell, and a display screen is provided on the surface of the shell accordingly, and the display module is electrically connected to the control circuit board.

[0012] Furthermore, a rechargeable battery is provided in the second shell, and the rechargeable battery is electrically connected to the control circuit board, and a charging interface is correspondingly provided on the second shell.

[0013] Compared with the prior art, the electric heating hair straightening comb of the present invention has the following beneficial effects: 1. When the electric heating hair straightening comb of the present invention is opened for use, since the comb teeth and the hand-held part are both in a stepped shape, when the user holds the hand-held part, the fingers will be automatically prevented from touching the high-temperature area of ​​the comb teeth, thereby preventing accidental burns, and having high safety; 2. The comb teeth and the hand-held part of the electric heating hair straightening comb of the present invention respectively have independent shells, and the two can rotate relative to each other along the length direction of the shell to achieve opening and folding, and keep the folded state when not in use, occupying a small space and being easy to carry; 3. When the hair straightening comb is opened for use, since the comb teeth and the hand-held part are both in a stepped shape, space is provided for the user's fingers, and there is no need to deliberately raise the arm, and the fingers can be prevented from contacting and rubbing with the cheeks and other parts when combing the hair, which does not affect the experience and has a good use effect; 4. The design of the connecting mechanism is ingenious, making the product structure compact; 5. The comb teeth cover is designed to have a rhombus-shaped cross section, which can effectively increase the contact area between the comb teeth and the hair, and improve the effect of heat transfer and hair straightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a reference schematic diagram of the prior art electric heating hair straightening comb when in use; Figure 2 Schematic diagram of the three-dimensional structure of the electric heating straight hair comb of the present invention, comprising Figure 2 A indicates the open state and Figure 2 B indicates the folded state; Figure 3 is a three-dimensional exploded schematic diagram of the electric heating hair straightening comb; Figure 4 is a longitudinal cross-sectional structural schematic diagram of the electric heating straight hair comb, comprising Figure 4 A indicates the open state and Figure 4 B indicates the folded state; Figure 5 is a schematic diagram of the transverse cross-sectional structure of the electric heating straight hair comb (along the Figure 4 The plane drawn by the dotted line in A) illustrates the process of the electric hair straightening comb from the open state to the closed state, including Figure 5 A indicates the open state. Figure 5 B indicates the process of closing and Figure 5 C indicates the folded state; Figure 6 is a schematic diagram of the cross-sectional structure of the connecting mechanism (enlarged); Figure 7 is another three-dimensional exploded schematic diagram of the electric heating hair straightening comb; Figure 8 A bottom-up schematic diagram of the electric hair straightening comb and a partially enlarged schematic diagram; Fig. 9 This is a reference schematic diagram of the electric heating hair straightening comb of the present invention when in use. DETAILED DESCRIPTION

[0015] Now, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0016] The electric heating straight hair comb of the present invention is Figures 2 to 7 As shown, it includes a comb tooth portion 100 and a handheld portion 200; the comb tooth portion 100 further includes a first shell 110, metal heat-conducting comb teeth 120 and an electric heating component 130 installed in the first shell 110; the handheld portion includes a second shell 210 and a control circuit board 220 installed in the second shell 210; the electric heating component 130 is electrically connected to the control circuit board 220; based on the horizontal placement of the electric straight hair comb, the front end of the handheld portion 200 and the rear end of the comb tooth portion 100 are rotatably connected by means of a connecting mechanism 300, and the handheld portion 200 and the comb tooth portion 100 can rotate relative to each other in the horizontal direction. When opened, the two are in a stepped shape, and when folded, they are integrated.

[0017] In a specific implementation case, the present invention is combined with Figures 2 to 7 As shown, the connecting mechanism 300 includes a column 310, a torsion spring 320, a torsion spring fixing sleeve 330, a locking member 340, a spring 350 and a push button 360. The column 310 is formed on the first shell 110, and a through hole for the column 310 to pass through is opened on the second shell 210; the main body of the torsion spring 320 is fixed in the torsion spring fixing sleeve 330, and the torsion spring fixing sleeve 330 and the torsion spring 320 are fixed to the column 310 by means of a screw set, a fixing leg 321 of the torsion spring 320 is fixed in the bayonet 331 of the torsion spring fixing sleeve 330, and the other fixing leg 322 of the torsion spring 320 is extended and fixed in the opening In the card slot 290 in the second shell 210, the push button 360 is connected to the end of the locking piece 340, one end of the spring 350 is installed on the locking piece 340, and the other end is connected to the inner wall of the second shell 210, the outer surface of the torsion spring fixing sleeve 330 is provided with two symmetrical positioning grooves 332, and the interior of the locking piece 340 is provided with a positioning protrusion 342 adapted to the positioning groove 332; the column 310, torsion spring 320, torsion spring fixing sleeve 330, locking piece 340, spring 350 and push button 360 are accommodated in the second shell 210 together, and the outer end of the push button 360 is exposed to the outer surface of the second shell 210.

[0018] It should be noted that the column 310 may not be directly formed on the first shell 110, and the column may be manufactured separately and fixed with screws, etc. The column 310 is directly integrally formed with the first shell 110, which has the advantages of saving mold opening costs and simple and convenient assembly.

[0019] In the present invention, Figures 2 to 7As shown, the electric heating component 130 includes an electric heating sheet 131 and a heating sheet bracket 132; a heat insulating sheet 133 is provided between the electric heating sheet 131 and the heating sheet bracket 132; the electric heating sheet 131 is a PTC heating sheet, an MCH ceramic heating sheet or a resistance wire heating sheet. The heat insulating sheet 133 blocks the heat generated by the electric heating sheet 131 from being transferred in a certain direction, so that the heat is more effectively transferred to the metal heat-conducting comb teeth 120.

[0020] like Figure 3 As shown, in the electric heating straight hair comb of the present invention, a negative ion generator 280 is further provided in the second housing 210, and the negative ion generator 280 is electrically connected to the control circuit board 220. When the user combs the hair, the hair can be further cared for by negative ions.

[0021] Reference Figures 3 to 8 As shown, in the electric straight hair comb of the present invention, the first shell 110 and the second shell 210 are both in the shape of a circular track. When the first shell 110 and the second shell 210 are folded, they fit together to form a whole, making the product structure compact and beautiful.

[0022] Combination Figure 3 and Figure 8 As shown, in the electric hair straightening comb of the present invention, the metal heat-conducting comb teeth 120 are further provided with a comb tooth cover 121, the cross section of which is rhombus-shaped and is generally made of plastic. The cross section of the comb tooth cover 121 is rhombus-shaped, which can effectively increase the contact area between the comb teeth and the hair, and improve the effect of heat transfer and hair straightening.

[0023] In the electric heating straight hair comb of the present invention, Figure 2 and Figure 3 As shown, a display module 260 is further provided in the second housing 210, and a display screen 261 is correspondingly provided on the housing surface, and the display module 260 is electrically connected to the control circuit board 220. The display module 260 and the display screen 261 are used to display data such as heating temperature and available power.

[0024] Combination Figures 3 to 8 As shown, a rechargeable battery 230 is further disposed in the second housing 210, and the rechargeable battery 230 is electrically connected to the control circuit board 220, and a charging interface 231 is correspondingly provided on the second housing 210. The charging interface 231 may be a micro-USB interface or a Tape-C interface.

[0025] Figure 73D exploded schematic diagram, illustrating the assembly process of the electric straight hair comb of the present invention. As shown in the figure, the upper cover of the second shell 210 is in an open state, the column 310 formed on the first shell 110 is passed through the through hole of the second shell 210, so that the column 310 enters the second shell 210, a fixing leg 321 of the torsion spring 320 is fixed in the bayonet 331 of the torsion spring fixing sleeve 330, and the other fixing leg 322 of the torsion spring 320 is extended and pre-pressed and fixed in the slot 290 opened in the second shell 210, the torsion spring fixing sleeve 330 and the torsion spring 320 are fixed to the column 310 by means of a screw set, the push button 360 is connected to the end of the locking member 340, one end of the spring 350 is installed on the locking member 340, and the other end is connected to the inner wall of the second shell 210 (combined with reference to Figure 5 As shown), after installation, cover the upper cover of the second shell 210.

[0026] Combine the following Figure 5 and Figure 6 As shown, the operation and use process of the electric heating hair straightening comb of the present invention is briefly described: Figure 5 A shows that the electric straight hair comb is in the open state. At this time, under the elastic force of the spring 350, the positioning protrusion 342 of the locking member 340 is embedded in one of the positioning grooves 332 of the torsion spring fixing sleeve 330, thereby locking the electric straight hair comb in the open state; when the electric straight hair comb needs to be folded, refer to Figure 5 As shown in FIG. B, the push button 360 is pushed to the left in the direction shown in the figure to overcome the elastic force of the spring 350, the spring 350 contracts, and the lock member 340 also moves to the left under the action of the thrust, so that the positioning protrusion 342 also disengages from the positioning groove 332 in which it was previously embedded. At this time, force is applied to the right to rotate the comb tooth portion 100 (first shell 110) to overcome the pre-compression torque of the torsion spring 320. Since the torsion spring fixing sleeve 330 and the torsion spring 320 are fixed on the column 310 formed on the first shell 110, the torsion spring fixing sleeve 330 is also driven to rotate to the right (counterclockwise in the figure). When rotated 180 degrees, as shown in FIG. Figure 5 C, the other positioning groove 332 of the torsion spring fixing sleeve 330 is aligned with the positioning protrusion 342 on the locking member 340, and the pushing force of the push button 360 is canceled. The locking member 340 moves to the right under the elastic force of the spring 350, so that the positioning protrusion 342 on the locking member 340 is automatically embedded in the other positioning groove 332 of the torsion spring fixing sleeve 330, thereby keeping the electric straight hair comb locked in place. Figure 5 The collapsed state shown in C.

[0027] When you need to operate the electric straight hair comb from the folded state to the open state, refer to the same Figure 5 As shown in the figure, the reverse Figure 5 C to Figure 5 A process starts with Figure 5 In the state shown in C, the push button 360 is pushed to the left, and the positioning protrusion 342 also disengages from the positioning groove 332 in which it is embedded, and the torsion spring fixing sleeve 330 together with the column 310 (and the comb tooth portion 100) are unlocked. Under the action of the pre-compression torque of the torsion spring 320, the comb tooth portion 100 (the first shell 110) automatically rotates 180 degrees to the left (clockwise in the figure) until the positioning protrusion 342 on the locking member 340 is automatically embedded in the other positioning groove 332 of the torsion spring fixing sleeve 330 under the action of the spring 350, thereby keeping the electric straight hair comb locked in place. Figure 5 A shows the open state.

[0028] In the present invention, the mark 270 in the figure is a power switch button, and the mark 240 is an adjustment button (for adjusting the temperature level).

[0029] In the present invention, the heating control of the heating component, the control of the negative ion generator, and the charging control all belong to the prior art and will not be described in detail here.

[0030] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents (for example: the column 310 is not directly formed on the first shell, but is made separately and fixed by means of screws, etc.; the positioning protrusion and the positioning groove are interchanged, that is, the positioning protrusion is formed on the torsion spring fixing sleeve, and the positioning groove is provided on the locking member; etc.); and these modifications and replacements should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An electric hair straightening comb, characterized by: The electric straightening comb comprises a comb portion and a handheld portion; the comb portion further comprises a first housing, metal heat-conducting comb teeth, and an electric heating component mounted in the first housing; the handheld portion comprises a second housing and a control circuit board mounted in the second housing; the electric heating component is electrically connected to the control circuit board; with the electric straightening comb placed horizontally as a reference, the front end of the handheld portion and the rear end of the comb portion are rotatably connected by a connecting mechanism, and the handheld portion and the comb portion can rotate relative to each other in the horizontal direction. When opened, the two form a stepped shape, and when folded, they are integrated.

2. The electric hair straightening comb according to claim 1, characterized in that: The connecting mechanism includes a column, a torsion spring, a torsion spring fixing sleeve, a locking piece, a spring and a push button, the column is molded on the first shell, and a through hole is opened on the second shell for the column to pass through; the main body of the torsion spring is fixed in the torsion spring fixing sleeve, and the torsion spring fixing sleeve together with the torsion spring is fixed to the column by means of a screw set, one fixing leg of the torsion spring is fixed in the bayonet of the torsion spring fixing sleeve, and the other fixing leg of the torsion spring extends out and is fixed in the slot opened in the second shell, the push button is connected to the end of the locking piece, one end of the spring is installed on the locking piece and the other end is connected to the inner wall of the second shell, the outer surface of the torsion spring fixing sleeve is provided with two symmetrical positioning grooves, and the interior of the locking piece is provided with a positioning protrusion adapted to the positioning groove; the column, torsion spring, torsion spring fixing sleeve, locking piece, spring and push button are accommodated together in the second shell, and the outer end of the push button is exposed to the outer surface of the second shell.

3. The electric hair straightening comb according to claim 1 or 2, characterized in that: The electric heating component includes an electric heating plate and a heating plate bracket.

4. The electric hair straightening comb according to claim 3, characterized in that: A heat insulating sheet is provided between the electric heating sheet and the heating sheet bracket; the electric heating sheet is a PTC heating sheet, an MCH ceramic heating sheet or a resistance wire heating sheet.

5. The electric hair straightening comb according to claim 1 or 2, characterized in that: A negative ion generator is further provided in the second shell and is electrically connected to the control circuit board.

6. The electric hair straightening comb according to claim 1 or 2, characterized in that: The first shell and the second shell are both in the shape of a circular racetrack.

7. The electric hair straightening comb according to claim 1 or 2, characterized in that: The metal heat-conducting comb teeth are further provided with a comb tooth sleeve, and the cross section of the comb tooth sleeve is rhombus-shaped.

8. The electric hair straightening comb according to claim 1 or 2, characterized in that: A display module is further provided in the second shell, and a display screen is correspondingly provided on the surface of the shell. The display module is electrically connected to the control circuit board.

9. The electric hair straightening comb according to claim 1 or 2, characterized in that: A rechargeable battery is also provided in the second shell, and the rechargeable battery is electrically connected to the control circuit board. A charging interface is correspondingly provided on the second shell.

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