A straightening iron structure with good anti-scald effect and a straightening iron

Abstract

The utility model discloses a straightener structure and straightener that good anti scald effect, including the hinge connection of upper clamping plate and lower clamping plate, upper clamping plate and lower clamping plate all are provided with installation cavity, the installation cavity is floatingly installed with the perm component, the perm component includes the perm plate, the heating plate and the mounting bracket, the heating plate is linked with the perm plate, the perm plate is installed on the mounting bracket, the mounting bracket is provided with the flexible heat -proof pad between the bottom wall of installation cavity, and the heat -proof cavity is formed between mounting bracket and installation cavity bottom wall, the cavity wall of installation cavity opposite two sides is provided with the convection hole, and the convection hole is linked together with the heat -proof cavity, the utility model discloses can take away the heat in the heat -proof cavity through the air convection fast, effectively blocks the heat of perm component to the clamping plate shell conduction, significantly reduces the shell temperature, and improves the use security.

Description

Technical Field

[0001] This utility model relates to the field of hair styling equipment technology, specifically to a hair straightener structure and hair straightener with good anti-scalding effect. Background Technology

[0002] Hair straighteners typically operate at temperatures above 160 degrees Celsius. This high temperature poses significant safety hazards during use. Furthermore, as a core tool for achieving straight hair, the hair straightener, with its ease of use and high styling efficiency, has rapidly expanded from professional hair salons into the daily lives of modern young women. Therefore, with the increasingly widespread use of hair straighteners, their safety has become a crucial concern for both manufacturers and users.

[0003] Among existing patented technologies, utility model patent ZL202222794530.0 discloses a high-safety anti-scalding hair straightener. Its protective fins and frame prevent users from touching the upper and lower heating plates during use, improving the straightener's safety and reducing the occurrence of scalding accidents. However, this anti-scalding hair straightener has the following problems: firstly, it is not suitable for flat iron-type hair straighteners; secondly, it affects the straightening effect.

[0004] Another utility model patent, ZL202321356968.9, discloses a hair straightener with a cooling system. After use, the motor is activated, driving the shaft and fan blades to rotate. The fan blades generate airflow inside the channel, which blows the air between the upper and lower clamping plates. The air is then exhausted through the ventilation holes, thus cooling the upper and lower clamping plates and improving their heat dissipation efficiency. This also makes the straightener easy to store and prevents burns from residual heat. However, this type of hair straightener has the following problems: First, the inclusion of a cooling fan structure leads to a complex structure and high equipment cost; second, its rapid cooling after use makes it unsuitable for providing burn protection during use. Utility Model Content

[0005] The purpose of this utility model is to provide a hair straightener structure and hair straightener with good anti-scalding effect, which is suitable for flat iron hair straighteners and can provide effective anti-scalding protection during use.

[0006] This utility model is implemented as follows: According to a first aspect of this utility model, this utility model provides a hair straightener structure with good anti-scalding effect, including an upper clamp plate and a lower clamp plate hinged together. Both the upper and lower clamp plates are provided with mounting cavities, and a hair straightening component is floatingly mounted in the mounting cavity. The hair straightening component includes a hair straightening plate, a heating plate, and a mounting frame. The heating plate is connected to the hair straightening plate, and the hair straightening plate is mounted on the mounting frame. A flexible heat insulation pad is provided between the mounting frame and the bottom wall of the mounting cavity. The flexible heat insulation pad can be made of high-temperature resistant silicone with a porous structure. It is a high-temperature resistant silicone with a "closed-cell / open-cell porous structure" formed by physical or chemical foaming, based on methyl vinyl silicone rubber. It can withstand high temperatures of 100 degrees Celsius and does not soften or shrink during long-term operation in a 100-degree Celsius environment, thus forming a heat insulation cavity between the mounting frame and the bottom wall of the mounting cavity. Convection holes are provided on the cavity walls on opposite sides of the mounting cavity, and the convection holes are connected to the heat insulation cavity.

[0007] Furthermore, a heat dissipation cavity is provided between the mounting bracket and the hair curling plate, and a through hole is provided on the cavity wall of the heat dissipation cavity, which is connected to the convection hole.

[0008] Furthermore, the ends of the upper and lower clamping plates that are away from their hinge positions extend beyond the mounting cavity by a certain distance, and a pressing part is provided on the outer wall of this end, and the pressing part is provided with an anti-slip structure.

[0009] Furthermore, the hair perming assembly also includes a temperature sensor, the temperature sensor's probe being located in a heat dissipation cavity, the temperature probe and the heating plate being tightly fitted to the back of the hair perming plate, or the temperature probe and the heating plate being disposed in a corresponding groove provided on the hair perming plate.

[0010] According to a second aspect of the present invention, the present invention provides a hair straightener having the aforementioned hair straightener structure with good anti-scalding effect.

[0011] Furthermore, an electrical accommodating cavity is provided in the upper clamping plate and / or the lower clamping plate, and a PCB board is provided in the electrical accommodating cavity. The temperature sensor and the heating plate are both electrically connected to the PCB board. A wire hole is provided between the electrical accommodating cavity and the mounting cavity. The wires of the temperature sensor and the heating plate pass through the wire hole and are electrically connected to the PCB board. The wire hole is filled with high-temperature resistant sealant to block the heat in the mounting cavity from being conducted to the electrical accommodating cavity.

[0012] Furthermore, the PCB board is provided with multiple function buttons, and the cavity wall of the electrical accommodating cavity on which the PCB board is mounted is provided with button holes corresponding to each function button. The operating end of each function button passes through the corresponding button hole and protrudes from the outer wall of the electrical accommodating cavity, and a button cap connected to the operating end of the corresponding function button is provided in the button hole. The button cap also has a sealing and dustproof function.

[0013] Furthermore, a display screen is provided on the outer shell wall of the upper or lower clamping plate, and the display screen is electrically connected to the PCB board.

[0014] Furthermore, a locking mechanism is provided at one end of the upper and lower clamping plates that are hinged to each other. The locking mechanism has a locked state and an unlocked state. In the locked state, the hair-curling components of the upper and lower clamping plates are in a corresponding fit, and the locking mechanism restricts the relative rotation of the upper and lower clamping plates around the hinge axis. In the unlocked state, the locking mechanism releases the restriction on the relative rotation of the upper and lower clamping plates, and the upper and / or lower clamping plates can be flipped open around the hinge axis.

[0015] Furthermore, the locking mechanism includes a locking key and a locking groove, which are respectively disposed on the upper clamping plate and the lower clamping plate, or respectively disposed on the lower clamping plate and the upper clamping plate. The housing of the upper or lower clamping plate is provided with a mounting groove for mounting the locking key. A locking platform is provided in the locking groove. The locking key is provided with a latch, a push latch, and an elastic arm. The elastic arm is provided with a protruding structure. Two latches adapted to the protruding structure are sequentially provided on the side wall of the mounting groove along the pushing direction of the mounting groove. A through-hole structure for the push latch to pass through is provided on the bottom or top wall of the mounting groove. The outer end of the push latch protrudes from the outer wall of the housing of the upper or lower clamping plate, so that the user can slide the locking key along the mounting groove by moving the push latch. Simultaneously, the protruding structure of the elastic arm can switch between engaging and disengaging between the two latches as the locking key slides, corresponding to the engagement or disengagement of the latch and the locking platform, thereby realizing the switching between the locked and unlocked states of the locking mechanism.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model sets up a flexible heat insulation pad to form a heat insulation cavity between the hair perming component and the shell of the clamp. Convection holes are provided on the cavity walls on opposite sides of the mounting cavity and are connected to the heat insulation cavity. In this way, the heat in the heat insulation cavity can be quickly removed by air convection, effectively blocking the heat of the hair perming component from being conducted to the shell of the clamp, significantly reducing the shell temperature and improving the safety of use.

[0017] 2. This utility model is equipped with a locking mechanism, which can keep the hair-curling components of the upper and lower clamps in corresponding contact when locked, so that the hair can be stably clamped without the user having to press continuously, reducing the burden of operation; when unlocked, the relative rotation restriction of the clamps can be released, making it easy to put in or take out the hair. At the same time, the locking mechanism's locking structure can also prevent the clamps from being accidentally released during use, further improving the convenience and safety of use.

[0018] 3. The hair perming component of this utility model is floating, which allows the hair perming component to adjust its position slightly up and down according to the thickness of the hair when clamping the hair, ensuring that the hair perming plate is always in close contact with the hair to guarantee the styling effect, while avoiding uneven force on the hair due to rigid contact. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention when the lower clamping plate is removed; Figure 4 yes Figure 3 The diagram shown illustrates the structure when the perm components are removed. Figure 5 This is a three-dimensional structural diagram of the hair perming component of this utility model; Figure 6 This is a three-dimensional structural diagram of the hair curling plate and mounting frame of this utility model when they are connected; Figure 7 This is an enlarged view of the location where the upper clamping plate of this utility model is used to install the locking mechanism; Figure 8 This is a three-dimensional structural diagram of the locking key of this utility model.

[0020] In the diagram: 1. Upper clamping plate; 2. Lower clamping plate; 3. Hair perming assembly; 301. Hair perming plate; 302. Mounting bracket; 303. Heat dissipation cavity; 304. Through hole; 305. Protruding limiting part; 4. Flexible heat insulation pad; 5. Convection hole; 6. Pressing part; 7. PCB board; 8. Function button; 9. Display screen; 10. Locking button; 11. Locking slot; 12. Mounting slot; 13. Locking buckle; 14. Push buckle; 15. Elastic arm; 16. Protruding structure; 17. Card slot; 18. Carding platform; 19. Hinge shaft; 20. Through hole structure. Detailed Implementation

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: like Figure 1, Figure 2 , Figures 4-6 As shown, a hair straightener includes an upper plate 1 and a lower plate 2, with the upper plate 1 hinged to the lower plate 2 via a hinge shaft 19. Both the upper plate 1 and the lower plate 2 have mounting cavities at their ends away from the hinge shaft 19, and a hair straightening component 3 is floatingly mounted within these cavities. The hair straightening component 3 includes a hair straightening plate 301, a heating plate, a mounting bracket 302, and a temperature sensor. The hair straightening plate 301 can be a ceramic plate. The heating plate is tightly fitted to the back of the hair straightening plate 301, or the heating plate is disposed within the hair straightening plate 301, or the back of the hair straightening plate 301 has a groove for mounting the heating plate, and the heating plate is disposed within this groove. The hair straightening plate 301 is mounted on the mounting bracket 302, and a heat dissipation cavity 303 is provided between the mounting bracket 302 and the hair straightening plate 301. A through hole 304 is provided on the cavity wall of the heat dissipation cavity 303. The temperature sensor's probe is located in the heat dissipation cavity 303, and the probe is in close contact with the back of the hair curling plate 301, or it is set in the temperature detection groove on the hair curling plate 301 to realize the temperature detection of the hair curling plate 301. A flexible heat insulation pad 4 is provided between the mounting bracket 302 and the bottom wall of the mounting cavity. The flexible heat insulation pad 4 can be made of high-temperature resistant silicone with a porous structure. It is a high-temperature resistant silicone with a "closed-cell / open-cell porous structure" formed by physical foaming or chemical foaming, based on methyl vinyl silicone rubber. It can withstand a high temperature of 300 degrees Celsius and does not soften or shrink after long-term operation at 200 degrees Celsius. This creates a heat insulation cavity between the mounting bracket 302 and the bottom wall of the mounting cavity. Convection holes 5 are provided on the cavity walls on opposite sides of the mounting cavity. The convection holes 5 are connected to the heat insulation cavity, and the through hole 304 is also connected to the convection holes 5.

[0023] Heat dissipation and anti-scalding principle: When the heating plate is working, part of the heat generated is conducted to the hair-curling plate 301 to achieve the styling function, and the other part of the heat is transferred to the heat dissipation cavity 303 through the back of the hair-curling plate 301. Since the through hole 304 of the heat dissipation cavity 303 is connected to the convection hole 5 of the mounting cavity, and the convection hole 5 is connected to the heat insulation cavity between the mounting frame 302 and the bottom wall of the mounting cavity, cold air from the outside can enter the heat insulation cavity through the convection hole 5 on one side, and then flow into the heat dissipation cavity 303 through the through hole 304, forming convection with the hot air in the heat dissipation cavity 303. The air carrying heat is then discharged from the convection hole 5 on the other side. At the same time, the flexible heat insulation pad 4 between the mounting frame 302 and the bottom wall of the mounting cavity can reduce the conduction of heat from the hair-curling component 3 to the clamp shell, avoiding the shell temperature from getting too high. The existence of the heat insulation cavity further expands the air convection space and improves the heat dissipation efficiency, ultimately achieving efficient heat dissipation of the hair-curling component 3 and anti-scalding effect of the clamp shell.

[0024] like Figure 1 and Figure 2As shown, the ends of the upper clamping plate 1 and the lower clamping plate 2, away from their hinge point, extend a certain distance beyond the mounting cavity, and a pressing part 6 is provided on the outer wall of this end. This allows the temperature at the pressing part 6 to be lower, further improving safety during use. The pressing part 6 is provided with an anti-slip structure, which can adopt a striped raised surface, dotted pits, or anti-slip texture design, which can increase the friction between the user's hand and the pressing part 6 when pressing, and prevent slippage caused by sweaty hands or uneven force during use.

[0025] like Figure 2 , Figure 4 and Figure 5 As shown, the mounting bracket 302 has plugs at both ends to reduce heat transfer in the direction of the ends. The plugs only block the side openings at both ends, not the downward opening, leaving space for the wires of the temperature sensor and heating plate to pass through. Alternatively, the plugs may have wire-passing holes. The plugs have protruding limiting parts 305. The cavity wall of the clamp mounting cavity has limiting guide grooves that are adapted to the protruding limiting parts 305 and prevent the protruding limiting parts 305 from disengaging. With the flexible heat insulation pad 4, the hair-curling component 3 can be floatingly installed. This allows the hair-curling component 3 to adjust its position slightly up and down according to the thickness of the hair when clamping it, ensuring that the hair-curling plate 301 is always in close contact with the hair to ensure the styling effect, while avoiding uneven force on the hair or excessive wear of the hair-curling plate 301 due to rigid contact.

[0026] like Figures 1-3 As shown, an electrical accommodating cavity is provided in the lower clamping plate 2, and a PCB board 7 is installed in the electrical accommodating cavity. An MCU control chip is installed on the PCB board 7, and the temperature sensor and heating plate are electrically connected to the PCB board 7. A wire hole is provided between the electrical accommodating cavity and the mounting cavity. The wires of the temperature sensor and heating plate pass through the wire hole and are electrically connected to the PCB board 7. The wire hole is filled with high-temperature resistant sealant to prevent heat conduction from the mounting cavity to the electrical accommodating cavity. Multiple function buttons 8 are provided on the PCB board 7. The cavity wall of the electrical accommodating cavity on which the PCB board 7 is installed has button holes corresponding to each function button 8. The operating end of each function button 8 passes through the corresponding button hole and protrudes from the outer wall of the electrical accommodating cavity. A button cap is provided in the button hole, connecting to the operating end of the corresponding function button 8. The button cap also serves as a protective and dustproof seal. The function buttons 8 include a power button (which also functions as a mode switch button), a temperature setting button, etc. A display screen 9 is installed on the outer shell wall of the upper clamping plate 1. The display screen 9 is electrically connected to the PCB board 7. The display screen 9 is used to display the set temperature, working mode, real-time temperature of the hair curling plate 301, etc.

[0027] like Figure 1 , Figure 3 , Figure 7 and Figure 8As shown, a locking mechanism is provided at one end of the upper clamping plate 1 and the lower clamping plate 2 that are hinged to each other. The locking mechanism includes a locking key 10 and a locking groove 11. The locking key 10 and the locking groove 11 are respectively provided on the upper clamping plate 1 and the lower clamping plate 2, or respectively on the lower clamping plate 2 and the upper clamping plate 1. The housing of the upper clamping plate 1 or the lower clamping plate 2 is provided with a mounting groove 12 for installing the locking key 10. A locking platform 18 is provided in the locking groove 11. The locking key 10 is provided with a locking buckle 13, a pushing buckle 14 and an elastic arm 15. The elastic arm 15 is provided with a protruding structure 16. The side wall of the mounting groove 12 is provided with a pushing direction along the mounting groove 12. Two slots 17 adapted to the protruding structure 16 are sequentially arranged. A through-hole structure 20 for the push buckle 14 to pass through is provided on the bottom or top wall of the mounting slot 12. The outer end of the push buckle 14 protrudes from the outer wall of the upper clamping plate 1 or the lower clamping plate 2, allowing the user to slide the locking key 10 along the mounting slot 12 by moving the push buckle 14. Simultaneously, the protruding structure 16 of the elastic arm 15 can switch between engaging and disengaging between the two slots 17 as the locking key 10 slides, corresponding to the engagement or disengagement of the latch 13 and the locking platform 18, thereby achieving the switching of the locking mechanism between the locked and unlocked states. In the locked state, the hair-curling components 3 of the upper clamping plate 1 and the lower clamping plate 2 are in a correspondingly fitted state, and the locking mechanism restricts the relative rotation of the upper clamping plate 1 and the lower clamping plate 2 around the hinge axis. In the unlocked state, the locking mechanism releases the restriction on the relative rotation of the upper clamping plate 1 and the lower clamping plate 2, and the upper clamping plate 1 can be flipped open around the hinge axis.

[0028] In summary, this utility model, by setting a flexible heat insulation pad 4, forms a heat insulation cavity between the hair perming component 3 and the shell of the clamping plate. Convection holes 5 are provided on the cavity walls on opposite sides of the mounting cavity, and the convection holes 5 are connected to the heat insulation cavity. In this way, the heat in the heat insulation cavity can be quickly removed by air convection, effectively blocking the heat of the hair perming component 3 from being conducted to the shell of the clamping plate, significantly reducing the shell temperature and improving the safety of use.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hair straightener structure with good anti-scalding effect, comprising an upper plate and a lower plate hinged together, characterized in that, Both the upper and lower clamping plates are provided with mounting cavities, in which a hair-curling component is floatingly mounted. The hair-curling component includes a hair-curling plate, a heating plate, and a mounting frame. The heating plate is connected to the hair-curling plate, and the hair-curling plate is mounted on the mounting frame. A flexible heat-insulating pad is provided between the mounting frame and the bottom wall of the mounting cavity, so that a heat-insulating cavity is formed between the mounting frame and the bottom wall of the mounting cavity. Convection holes are provided on the cavity walls on opposite sides of the mounting cavity, and the convection holes are connected to the heat-insulating cavity.

2. The structure of a hair straightener with good anti-scalding effect according to claim 1, characterized in that, The mounting bracket and the hair-curling plate have a heat dissipation cavity, and the cavity wall of the heat dissipation cavity is provided with a through hole, which is connected to the convection hole.

3. The structure of a hair straightener with good anti-scalding effect according to claim 2, characterized in that, The upper and lower clamping plates extend a certain distance beyond the mounting cavity at their hinged ends, and a pressing part with an anti-slip structure is provided on the outer wall of that end.

4. The structure of a hair straightener with good anti-scalding effect according to claim 1, characterized in that, The hair perming assembly also includes a temperature sensor, the temperature sensor's probe being located in a heat dissipation cavity, the temperature probe and the heating plate being tightly fitted to the back of the hair perming plate, or the temperature probe and the heating plate being disposed in a corresponding groove provided on the hair perming plate.

5. A hair straightener, characterized in that, The hair straightener has the hair straightener structure with good anti-scalding effect as described in any one of claims 1-4.

6. A hair straightener according to claim 5, characterized in that, An electrical accommodating cavity is provided in the upper clamping plate and / or the lower clamping plate, and a PCB board is provided in the electrical accommodating cavity. The temperature sensor and the heating plate are both electrically connected to the PCB board. A wire hole is provided between the electrical accommodating cavity and the mounting cavity, and the wires of the temperature sensor and the heating plate pass through the wire hole to achieve electrical connection with the PCB board.

7. A hair straightener according to claim 6, characterized in that, The PCB board is provided with multiple function buttons. The cavity wall of the electrical accommodating cavity on which the PCB board is mounted is provided with button holes corresponding to each function button. The operating end of each function button passes through the corresponding button hole and protrudes from the outer wall of the electrical accommodating cavity. A button cap connected to the operating end of the corresponding function button is provided in the button hole.

8. A hair straightener according to claim 7, characterized in that, A display screen is provided on the outer shell wall of the upper or lower clamping plate, and the display screen is electrically connected to the PCB board.

9. A hair straightener according to claim 5, characterized in that, A locking mechanism is provided at one end of the upper clamp plate and the lower clamp plate that are hinged to each other. The locking mechanism has a locked state and an unlocked state. In the locked state, the hair perming components of the upper clamp plate and the lower clamp plate are in a corresponding fit state. At the same time, the locking mechanism restricts the relative rotation of the upper clamp plate and the lower clamp plate around the hinge axis. In the unlocked state, the locking mechanism releases the restriction on the relative rotation of the upper and lower clamping plates, and the upper and / or lower clamping plates can be flipped open around the hinge axis.

10. A hair straightener according to claim 9, characterized in that, The locking mechanism includes a locking key and a locking groove, which are respectively disposed on the upper and lower clamping plates, or respectively disposed on the lower and upper clamping plates. The upper or lower clamping plate has a mounting groove for mounting the locking key. A locking platform is provided in the locking groove. The locking key has a latch, a push latch, and an elastic arm. The elastic arm has a protruding structure. Two latches adapted to the protruding structure are sequentially arranged on the side wall of the mounting groove along the pushing direction. A through-hole structure for the push latch to pass through is provided on the bottom or top wall of the mounting groove. The outer end of the push latch protrudes from the outer wall of the upper or lower clamping plate, allowing the user to slide the locking key along the mounting groove by moving the push latch. Simultaneously, the protruding structure of the elastic arm can switch between the two latches as the locking key slides, corresponding to the engagement or disengagement of the latch and the locking platform, thereby achieving the switching between the locked and unlocked states of the locking mechanism.

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