hair straightener

Abstract

This utility model discloses a hair straightener, including a housing, a liquid supply device, and two heating plate assemblies. The housing includes two hinged clamps. The two heating plate assemblies are respectively disposed on the two clamps and are arranged opposite each other. At least one heating plate assembly has a vaporization chamber and a steam outlet, the steam outlet communicating with the vaporization chamber and positioned between the two clamps. The liquid supply device has an air bladder component, a liquid storage chamber, and a liquid supply channel, the liquid supply channel communicating with the liquid storage chamber and the vaporization chamber. The air bladder component has an air inlet and an air outlet, a first check valve at the air inlet, and the air outlet communicating with the liquid storage chamber. A first through hole is provided on the inner side of the clamp where the liquid supply device is located, and the air bladder component is disposed corresponding to the first through hole. The other clamp has a squeezing member and an adjusting mechanism, the adjusting mechanism being connected to the squeezing member to adjust the extension height of the squeezing member relative to the inner side of the clamp. The squeezing member is used to squeeze the air bladder component when the two clamps are closed. This utility model's technical solution improves ease of use.

Description

Technical Field

[0001] This utility model relates to the field of hairdressing equipment, and in particular to a hair straightener. Background Technology

[0002] A hair straightener is a household appliance that uses an electric current to heat a built-in heating element (such as MCH, PTC, or heating wire), and then uses an aluminum or ceramic plate to conduct the heat to style hair. Currently, some hair straighteners have a misting device that sprays water or steam onto the hair during the straightening process to moisturize and reduce hair damage. However, these misting devices usually require manual operation and the amount of water or steam produced is fixed, making them inconvenient in practical use. Utility Model Content

[0003] The main purpose of this invention is to provide a hair straightener that improves ease of use.

[0004] To achieve the above objectives, the hair straightener proposed in this utility model includes:

[0005] The housing includes two hinged plates.

[0006] Two heating plate assemblies are respectively disposed on the two clamping plates, and the two heating plate assemblies are arranged opposite each other. At least one heating plate assembly has a vaporization chamber and a steam outlet, the steam outlet communicating with the vaporization chamber and being positioned towards the space between the two clamping plates; and

[0007] A liquid supply device includes an airbag component, a liquid storage chamber, and a liquid supply channel. The liquid supply channel connects the liquid storage chamber and the vaporization chamber. The airbag component has an air inlet and an air outlet. A first check valve is provided at the air inlet, and the air outlet is connected to the liquid storage chamber. A first through hole is provided on the inner side of the clamping plate where the liquid supply device is located. The airbag component is arranged corresponding to the first through hole. Another clamping plate is provided with a squeezing member and an adjustment mechanism. The adjustment mechanism is connected to the squeezing member and is used to adjust the extension height of the squeezing member relative to the inner side of the clamping plate. The squeezing member is used to squeeze the airbag component when the two clamping plates are closed.

[0008] Optionally, the clamping plate has a second through hole on its inner side, the second through hole being located between the heating plate assembly and the hinge shaft of the clamping plate, the extrusion member including a connecting part located in the clamping plate and an abutting part extending from the second through hole, the connecting part being connected to the adjustment mechanism.

[0009] Optionally, the clamping plate is provided with a third through hole, which is an elongated hole extending along the length direction of the clamping plate, and the adjusting mechanism has a toggle part that extends out from the third through hole.

[0010] Optionally, the third through hole is located on the inner side of the clamping plate.

[0011] Optionally, the third through hole and the second through hole are spaced apart along the width direction of the clamping plate; or, the third through hole and the second through hole are spaced apart along the length direction of the clamping plate.

[0012] Optionally, the adjusting mechanism has multiple limiting parts, which are distributed sequentially at intervals along the length of the clamping plate. Any two adjacent limiting parts are connected by a guide slope, and the connecting part abuts against the limiting part.

[0013] Optionally, the adjustment mechanism has a mounting groove, and a plurality of limiting portions are provided on both opposite side walls of the mounting groove. The connecting portion is located inside the mounting groove, and a supporting portion is provided on each of the limiting portions on both side walls of the mounting groove.

[0014] Optionally, the adjusting mechanism is provided with an elastic buckle, and the clamping plate is provided with multiple slots. The multiple slots are distributed at intervals along the length direction of the clamping plate. When the connecting part abuts against any of the limiting parts, the elastic buckle is engaged with at least one of the slots.

[0015] Optionally, the liquid supply device includes a water tank having the liquid storage chamber, and the water tank is detachably mounted on the clamp.

[0016] Optionally, the liquid storage chamber is an elongated strip extending along the length of the clamping plate, and the end of the liquid supply channel away from the vaporization chamber extends to the end of the liquid storage chamber away from the heating plate assembly.

[0017] Optionally, the liquid storage chamber has a liquid inlet hole, which is connected to the air outlet hole, and a second check valve is provided at the liquid inlet hole.

[0018] Optionally, the heating plate assembly includes a hair-curling plate and a heating element disposed inside the hair-curling plate. The hair-curling plates of the two heating plate assemblies are arranged opposite to each other, and a portion of the cavity wall of the vaporization chamber is thermally connected to the heating element.

[0019] Optionally, the vaporization chamber is provided with a water-absorbing structure, which is attached to the cavity wall of the vaporization chamber and is thermally connected to the heating element.

[0020] Optionally, the vaporization chamber has a liquid inlet, which is connected to the liquid supply channel, and a third check valve is provided at the liquid inlet.

[0021] Optionally, the heating plate assembly further includes a heat-conducting plate disposed on the side of the heating element away from the hair-curling plate, and a portion of the cavity wall of the vaporization chamber is formed by the heat-conducting plate for thermal conduction connection with the heating element.

[0022] Optionally, the heating plate assembly further includes a mounting component having a steam tank. The bottom wall of the steam tank is provided with a liquid inlet communicating with the liquid supply channel. The heat-conducting plate seals and covers the opening of the steam tank to form the vaporization chamber.

[0023] Optionally, the steam tank includes a first tank and a second tank, the first tank and the second tank are arranged along the width direction of the clamp and are connected by a notch, the heat-conducting plate is sealed to the opening of the first tank and the opening of the second tank, the bottom wall of the first tank is provided with the liquid inlet, and the steam outlet is connected to the second tank.

[0024] Optionally, both the first tank and the second tank are equipped with water-absorbing structures.

[0025] Optionally, the steam outlet is located beside the hair perming plate, or the hair perming plate is provided with a fourth through hole, and the steam outlet is provided corresponding to the fourth through hole.

[0026] The beneficial effects of this invention are as follows: At least one heating plate assembly has a vaporization chamber and a steam outlet, with the steam outlet connected to the vaporization chamber. A liquid supply device is provided, comprising an airbag component, a liquid storage chamber, and a liquid supply channel, connecting the liquid storage chamber and the vaporization chamber. A first through hole is provided on the inner side of the clamping plate corresponding to the position of the airbag component. A pressing element and an adjusting mechanism are provided on the other clamping plate, with the adjusting mechanism connected to the pressing element. When the two clamping plates are closed, the pressing element abuts against the airbag component, causing elastic deformation and injecting some gas from the airbag component into the liquid storage chamber. This allows the liquid in the liquid storage chamber to be forced into the vaporization chamber through the liquid supply channel, whereby the liquid is heated and vaporized to form steam, which is then ejected from the steam outlet. This allows steam to be applied to the hair during the straightening process, providing hydration, enhancing shine, and reducing heat damage. Furthermore, the steam is automatically triggered when the two clamping plates are closed for straightening, eliminating the need for manual operation and improving ease of use. The inclusion of extrusion components and adjustment mechanisms allows for adjustable steam generation, enabling users to select the appropriate method based on their specific needs and enhancing ease of use. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the hair straightener of this utility model;

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of a mid-length straightener from another angle;

[0031] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0032] Figure 5 for Figure 1 A cross-sectional view of a mid-length straightener;

[0033] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0034] Figure 7 for Figure 6 Schematic diagram of the structure of the extrusion component and the adjustment mechanism;

[0035] Figure 8 for Figure 7 Exploded view of the extruded component and adjusting mechanism;

[0036] Figure 9 for Figure 5 Enlarged view of point D in the middle;

[0037] Figure 10 for Figure 1 Schematic diagram of the structure of the middle heating plate assembly;

[0038] Figure 11 for Figure 10 Cross-sectional view of the middle heating plate assembly;

[0039] Figure 12 for Figure 11 A schematic diagram of the structure of the mounting component.

[0040] Explanation of icon numbers:

[0041] 10. Housing; 11. Clamping plate; 111. First through hole; 112. Second through hole; 113. Third through hole; 20. Heating plate assembly; 201. Vaporization chamber; 202. Steam outlet; 21. Hair curling plate; 22. Heat conducting plate; 23. Heating element; 24. Water absorption structure; 25. Third check valve; 26. Mounting component; 261. Liquid inlet; 262. Steam tank; 263. First tank; 264. Second tank; 265. Notch; 30. Supply Liquid device; 31, airbag component; 311, air inlet; 312, air outlet; 32, liquid supply channel; 33, first check valve; 34, water tank; 341, liquid storage chamber; 342, liquid inlet hole; 35, second check valve; 40, extrusion component; 41, connecting part; 411, support part; 42, abutment part; 50, adjusting mechanism; 51, actuating part; 52, mounting groove; 53, limiting part; 54, guide slope; 55, elastic buckle; 56, locking protrusion.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] This utility model proposes a hair straightener.

[0046] In the embodiments of this utility model, such as Figures 1 to 12As shown, the hair straightener includes a housing 10, a liquid supply device 30, and two heating plate assemblies 20. The housing 10 includes two clamping plates 11 that are hinged to each other. The two heating plate assemblies 20 are respectively disposed on the two clamping plates 11 and are arranged opposite to each other. At least one heating plate assembly 20 has a vaporization chamber 201 and a steam outlet 202. The steam outlet 202 communicates with the vaporization chamber 201 and is disposed at a position between the two clamping plates 11.

[0047] The liquid supply device 30 has an airbag component 31, a liquid storage chamber 341, and a liquid supply channel 32. The liquid supply channel 32 connects the liquid storage chamber 341 and the vaporization chamber 201. The airbag component 31 has an air inlet 311 and an air outlet 312. A first check valve 33 is provided at the air inlet 311, and the air outlet 312 is connected to the liquid storage chamber 341. A first through hole 111 is provided on the inner side of the clamping plate 11 where the liquid supply device 30 is located. The airbag component 31 is set corresponding to the first through hole 111. Another clamping plate 11 is provided with a squeezing member 40 and an adjusting mechanism 50. The adjusting mechanism 50 is connected to the squeezing member 40 and is used to adjust the extension height of the squeezing member 40 relative to the inner side of the clamping plate 11. The squeezing member 40 is used to squeeze the airbag component 31 when the two clamping plates 11 are closed.

[0048] Specifically, the inner side of the clamp 11 is the surface of the clamp 11 facing the other clamp 11. The heating plate assembly 20 is located at the end of the clamp 11 away from the hinge axis. The heating plate assembly 20 is generally a long strip extending along the length of the clamp 11. When the two clamps 11 are closed, the hair can be clamped by the two heating plate assemblies 20 together, so as to heat the hair using the two heating plate assemblies. The airbag component 31 may be located within or extend from the first through hole 111. The airbag component 31 is at least partially elastic (e.g., only the top wall of the airbag component 31 near the other clamping plate 11 is made of elastic material, or only the peripheral wall of the airbag component 31 is made of elastic material, or both the top wall and peripheral wall of the airbag component 31 near the other clamping plate 11 are made of elastic material, or the airbag component 31 is entirely made of elastic material) so that when the two clamping plates 11 are closed and the extruder 40 abuts against the airbag component 31, the airbag component 31 can undergo elastic deformation, and after the two clamping plates 11 are opened and the extruder 40 moves away from the airbag component 31, the airbag component 31 can elastically recover.

[0049] When the storage chamber 341 is filled with liquid (such as pure water), when the two clamps 11 are closed, the extruder 40 abuts against the airbag component 31, causing the airbag component 31 to undergo elastic deformation. Since the air inlet 311 is equipped with a first check valve 33, the pressure on the airbag component 31 will cause some of the gas in the airbag component 31 to be injected into the storage chamber 341, increasing the air pressure in the storage chamber 341. This, in turn, forces the liquid in the storage chamber 341 into the vaporization chamber 201 through the liquid supply channel 32. The liquid entering the vaporization chamber 201 is heated and vaporized to form steam, which is finally ejected from the steam outlet 202. When the two clamps 11 are opened, the extruder 40 moves away from the airbag component 31, and the airbag component 31 rebounds. At this time, external air can enter the airbag component 31 from the air inlet 311 so that when the clamps 11 are closed next time, some of the gas in the airbag component 31 will be injected into the storage chamber 341. In this way, steam is automatically triggered when the two clamps 11 are closed for perming, without the need for manual operation by the user, making it convenient to use.

[0050] During use, the extension height of the extrusion member 40 relative to the inner side of the clamping plate 11 can be adjusted via the adjustment mechanism 50, thereby adjusting the pressure level of the airbag component 31. It can be understood that as the extension height of the extrusion member 40 increases, the deformation of the airbag component 31 under pressure is greater, resulting in more gas being injected into the liquid storage chamber 341 within the airbag component 31. This, in turn, leads to more liquid being forced into the vaporization chamber 201 within the liquid storage chamber 341, generating more steam. This allows for adjustable steam output, enabling users to select the appropriate method based on their needs and improving ease of use. By applying steam to the hair during the straightening process, it can moisturize and enhance the hair's shine, while reducing heat damage. Optionally, the extruder 40 is located between the hinge axis of the heating plate assembly 20 and the clamping plate 11, that is, the airbag component 31 is also located between the hinge axis of the heating plate assembly 20 and the clamping plate 11. In this way, the extruder 40 can be accommodated in the position between the hinge axis of the heating plate assembly 20 and the clamping plate 11, and it can also better ensure that the extruder 40 can better extrude the airbag component 31 when the two clamping plates 11 are closed.

[0051] In some embodiments, a second through hole 112 is provided on the inner side of the clamping plate 11. The second through hole 112 is located between the hinge shaft of the heating plate assembly 20 and the clamping plate 11. The extrusion member 40 includes a connecting portion 41 located within the clamping plate 11 and an abutting portion 42 extending from the second through hole 112. The connecting portion 41 is connected to the adjustment mechanism 50. This arrangement allows the extrusion member 40 to be mostly hidden within the clamping plate 11, with only the abutting portion 42 located outside the clamping plate 11, thereby improving the reliability of the extrusion member 40.

[0052] In some embodiments, the clamping plate 11 is provided with a third through hole 113, which is an elongated hole extending along the length of the clamping plate 11. The adjusting mechanism 50 has a toggle part 51 extending from the third through hole 113. That is, the user can manually push the toggle part 51 to adjust the extension height of the extruder 40. This simple structure helps to reduce the production cost of the hair straightener. Of course, in other embodiments, the adjusting mechanism 50 includes a drive motor and a transmission mechanism connecting the drive motor and the extruder 40. The clamping plate 11 is provided with a button to realize electric adjustment.

[0053] In some embodiments, the adjustment mechanism 50 has a plurality of limiting portions 53, which are distributed sequentially at intervals along the length of the clamping plate 11. Any two adjacent limiting portions 53 are connected by a guide ramp 54, and the connecting portion 41 abuts against the limiting portion 53. Specifically, the plurality of limiting portions 53 are arranged in an ascending or descending step manner in the direction from the hinge axis of the clamping plate 11 to the heating plate assembly 20. The plurality of guide ramps 54 are generally parallel, and the limiting portions 53 are provided with limiting planes or concave surfaces. When the connecting portion 41 abuts against any limiting portion 53, the adjustment mechanism 50 can be stably maintained in this position. The user can push the actuating portion 51 to slide the connecting portion 41 along the guide ramp 54 to the adjacent limiting portion 53. This simple structure helps to reduce the production cost of the hair straightener.

[0054] In some embodiments, the adjustment mechanism 50 has a mounting groove 52, and multiple limiting portions 53 are provided on the opposite side walls of the mounting groove 52. The connecting portion 41 is located in the mounting groove 52, and a support portion 411 is provided on each of the limiting portions 53 on the side walls of the mounting groove 52, that is, the support portion 411 abuts against the limiting portion 53. This can make the force on both sides of the connecting portion 41 uniform, so that the extruder 40 can move smoothly during adjustment and the extruder 40 can be stable and reliable when under pressure.

[0055] A strip-shaped groove can be provided on the side wall of the mounting groove 52, with the limiting part 53 located on the side wall of the strip-shaped groove away from the other clamping plate 11, and the supporting part 411 extending into the strip-shaped groove. In this way, the movement of the extruded member 40 outward from the first through hole 111 can be restricted by the side wall of the strip-shaped groove near the other clamping plate 11. Alternatively, a spring can be provided between the clamping plate 11 and the connecting part 41, and the connecting part 41 can be pressed against the limiting part 53 by the spring.

[0056] In some embodiments, the adjusting mechanism 50 is provided with an elastic buckle 55, and the clamping plate 11 is provided with multiple slots. The multiple slots are spaced apart along the length direction of the clamping plate 11. When the connecting part 41 abuts against any limiting part 53, the elastic buckle 55 is engaged in at least one slot. Specifically, the elastic buckle 55 has one or more protrusions 56. The following description takes one protrusion 56 as an example. When the connecting part 41 abuts against any limiting part 53, the protrusion 56 is engaged in a slot. When the actuating part 51 is pushed forcefully, causing the elastic buckle 55 to elastically deform, the protrusion 56 can slide out of the current slot and slide to the adjacent slot. In this way, when the protrusion 56 is engaged in the slot, the sliding of the adjusting mechanism 50 along the length direction of the clamping plate 11 can be restricted, ensuring the stability of the adjusting structure. Of course, in other embodiments, only the limiting part 53 can be provided with a groove, and the connecting part 41 (support part 411) is located in the groove when it abuts against the limiting part 53.

[0057] In some embodiments, the third through hole 113 is located on the inner side of the clamping plate 11; this arrangement can prevent the user from accidentally touching the actuating part 51 when holding both clamping plates 11, thereby improving the reliability of the adjustment mechanism 50. Optionally, the third through hole 113 and the second through hole 112 are spaced apart along the width direction of the clamping plate 11; this allows the actuating part 51 to be located close to the edge of the clamping plate 11, facilitating user operation. Alternatively, the third through hole 113 and the second through hole 112 are spaced apart along the length direction of the clamping plate 11.

[0058] In some embodiments, the liquid storage chamber 341 is an elongated strip extending along the length of the clamping plate 11, and the end of the liquid supply channel 32 away from the vaporization chamber 201 extends to the end of the liquid storage chamber 341 away from the heating plate assembly 20. Specifically, in use, the hair straightener is usually held vertically or at an angle with the end of the heating plate assembly 20 on top and the end of the hinge shaft on the bottom to clamp the hair. Therefore, extending the end of the liquid supply channel 32 away from the vaporization chamber 201 to the end of the liquid storage chamber 341 away from the heating plate assembly 20 ensures that the end of the liquid supply channel 32 away from the vaporization chamber 201 is immersed in water during use, ensuring that the liquid storage chamber 341 can supply water normally when there is sufficient water in it, reducing the possibility of air in the liquid storage chamber 341 entering the vaporization chamber 201 during use. Moreover, this structure is simple and helps to reduce the production cost of the hair straightener. Of course, in other embodiments, to ensure reliable water intake in the vaporization chamber 201, a piston can also be provided in the liquid storage chamber 341, with the liquid located between the piston and the inlet of the liquid supply channel 32. When the gas from the airbag component 31 is injected into the liquid storage chamber 341, it can push the piston toward the inlet of the liquid supply channel 32, thereby pushing the liquid in the liquid storage chamber 341 toward the vaporization chamber 201.

[0059] In some embodiments, the liquid supply device 30 includes a water tank 34, which has a liquid storage chamber 341 and is detachably mounted on the clamp 11; thus, the water tank 34 can be removed for cleaning or replacement after use, making it convenient for users.

[0060] In some embodiments, the liquid storage chamber 341 has a liquid inlet 342, which is connected to the air outlet 312. A second check valve 35 is provided at the liquid inlet 342, which can prevent liquid and gas in the liquid storage chamber 341 from flowing back from the liquid inlet 342 to the airbag component 31, thereby reducing the risk of water leakage.

[0061] In some embodiments, the heating plate assembly 20 includes a curling plate 21 and a heating element 23 disposed inside the curling plate 21. The curling plates 21 of the two heating plate assemblies 20 are arranged opposite to each other, and a portion of the cavity wall of the vaporization chamber 201 is thermally connected to the heating element 23; that is, the heat generated by the heating element 23 is used to evaporate the liquid in the vaporization chamber 201 to form steam, which helps to simplify the structure of the hair straightener. Of course, in other embodiments, the heating element can also be disposed separately in the vaporization chamber 201.

[0062] In some embodiments, a water-absorbing structure 24 is provided inside the vaporization chamber 201. The water-absorbing structure 24 is attached to the cavity wall of the vaporization chamber 201, which is thermally connected to the heating element 23. Specifically, when water enters the vaporization chamber 201, it enters the water-absorbing structure 24. The water in the water-absorbing structure 24 is evaporated under the action of heat. This prevents the liquid in the vaporization chamber 201 that is not evaporated in time from flowing to the steam outlet 202, effectively preventing leakage. The water-absorbing structure 24 can be a washable cotton or a porous ceramic plate, etc.

[0063] In some embodiments, the vaporization chamber 201 has a liquid inlet 261, which is connected to the liquid supply channel 32. A third check valve 25 is provided at the liquid inlet 261. The third check valve 25 can prevent the liquid and steam in the vaporization chamber 201 from flowing back from the liquid supply channel 32 to the liquid storage chamber 341, thus ensuring a better steam effect.

[0064] In some embodiments, the heating plate assembly 20 further includes a heat-conducting plate 22, which is disposed on the side of the heating element 23 away from the curling plate 21. A portion of the cavity wall of the vaporization chamber 201 is formed by the heat-conducting plate 22 for thermal conduction connection with the heating element 23. That is, after the liquid enters the vaporization chamber 201, it can directly contact the heat-conducting plate 22 and be heated and evaporated into steam, thereby improving the evaporation effect and increasing the steam generation rate.

[0065] Optionally, the heat-conducting plate 22 and the hair-curling plate 21 are integrally formed, with an installation space open at both ends between the heat-conducting plate 22 and the hair-curling plate 21, and the heating element 23 is disposed in the installation space. This can reduce the number of parts, which is beneficial for reducing warehousing costs and improving assembly efficiency.

[0066] In some embodiments, the heating plate assembly 20 further includes a mounting member 26 having a steam groove 262. The bottom wall of the steam groove 262 is provided with a liquid inlet 261 communicating with the liquid supply channel 32. The heat-conducting plate 22 seals and covers the opening of the steam groove 262 to form a vaporization chamber 201. The mounting member 26 can thus be made of plastic or other easily moldable materials, facilitating the molding of the steam groove 262 and liquid inlet 261, thereby reducing the production cost of the hair straightener.

[0067] In some embodiments, the steam tank 262 includes a first tank 263 and a second tank 264, which are arranged along the width direction of the clamping plate 11 and connected through a notch 265. A heat-conducting plate 22 seals the openings of the first tank 263 and the second tank 264. The bottom wall of the first tank 263 is provided with a liquid inlet 261, and the steam outlet 202 is connected to the second tank 264. That is, the liquid in the first tank 263 and the second tank 264 can be heated and vaporized into steam by the heat-conducting plate 22. The liquid first enters the first tank 263 and evaporates into steam, and the steam flows from the notch 265 to the second tank 264, and finally sprays out from the steam outlet 202. Compared to the completely open structure between the first tank 263 and the second tank 264, the first tank 263 and the second tank 264 are connected by a gap 265, which can block the liquid. This allows the liquid to stay in the first tank 263 for a longer time. Even if a small amount of liquid flows into the second tank 264, it can be heated and evaporated by the heating plate in the second tank 264, which can reduce the risk of the liquid flowing out from the steam outlet 202.

[0068] Optionally, both the first tank 263 and the second tank 264 are provided with water-absorbing structures 24, which can further reduce the risk of liquid flowing out from the steam outlet 202. Of course, in other embodiments, the water-absorbing structure 24 may only be provided in the first tank 263.

[0069] In some embodiments, the steam outlet 202 is located beside the hair-curling plate 21, which simplifies the structure of the hair-curling plate 21 and reduces the impact of steam on the hair-curling plate 21. In other embodiments, the hair-curling plate 21 is provided with a fourth through hole, and the steam outlet 202 is correspondingly positioned to the fourth through hole.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A straightening iron, characterized in that, The utility model relates to a portable hair iron, including: A shell comprising two mutually hinged clamping plates; Two heating plate assemblies, each disposed on one of the clamping plates, at least one of the heating plate assemblies having a vaporization cavity and a steam outlet, the steam outlet being in communication with the vaporization cavity and being disposed towards a position between the two clamping plates; And A liquid supply device having an air bag component, a liquid storage cavity and a liquid supply channel, the liquid supply channel being in communication with the liquid storage cavity and the vaporization cavity, the air bag component having an air inlet and an air outlet, the air inlet being provided with a first check valve, the air outlet being in communication with the liquid storage cavity, the clamping plate on which the liquid supply device is disposed being provided with a first through hole, the air bag component being disposed corresponding to the first through hole, the other clamping plate being provided with a pressing member and an adjusting mechanism, the adjusting mechanism being connected with the pressing member to adjust the protruding height of the pressing member relative to the inner side surface of the clamping plate, the pressing member being used to press the air bag component when the two clamping plates are closed.

2. The straightening iron of claim 1, wherein The inner side surface of the clamping plate is provided with a second through hole, the second through hole being located between the heating plate assembly and the hinged shaft of the clamping plate, the pressing member comprising a connecting portion located in the clamping plate and an abutting portion protruding from the second through hole, the connecting portion being connected with the adjusting mechanism.

3. The straightening iron of claim 2, wherein, The clamping plate is provided with a third through hole, the third through hole being an elongated hole extending along the length direction of the clamping plate, the adjusting mechanism having a knob, the knob protruding from the third through hole.

4. The straightening iron of claim 3, wherein The third through hole is located on the inner side surface of the clamping plate; the third through hole and the second through hole are spaced apart along the width direction of the clamping plate; or the third through hole and the second through hole are spaced apart along the length direction of the clamping plate.

5. The straightening iron of claim 2, wherein, The adjusting mechanism has a plurality of limiting portions, the plurality of limiting portions being spaced apart along the length direction of the clamping plate in sequence, any two adjacent limiting portions being connected by a guide inclined surface, and the connecting portion abutting against the limiting portion.

6. The straightening iron of claim 5, wherein the heating element is a wire having a diameter of 0.5 mm to 2 mm. The adjusting mechanism has a mounting groove, the two opposite side walls of the mounting groove each being provided with a plurality of limiting portions, the connecting portion being located in the mounting groove and being provided with a supporting portion corresponding to the limiting portions on the two side walls of the mounting groove; And / or, the adjusting mechanism is provided with an elastic buckle, the clamping plate being provided with a plurality of clamping grooves, the plurality of clamping grooves being spaced apart along the length direction of the clamping plate, the connecting portion abutting against any one of the limiting portions, and the elastic buckle being clamped into at least one of the clamping grooves.

7. The straightening iron of claim 1, wherein, The liquid supply device comprises a water tank, the water tank having the liquid storage cavity, and the water tank being detachably mounted on the clamping plate; The liquid storage cavity is in the shape of an elongated strip extending along the length direction of the clamping plate, and one end of the liquid supply channel away from the vaporization cavity extends to one end of the liquid storage cavity away from the heating plate assembly; The liquid storage cavity has a liquid inlet hole, the liquid inlet hole being in communication with the air outlet, and the liquid inlet hole being provided with a second check valve.

8. The straightening iron of claim 1, wherein, The heating plate assembly comprises a hair iron and a heating element disposed on the inner side of the hair iron, the hair irons of the two heating plate assemblies being oppositely disposed, and part of the cavity wall of the vaporization cavity being in thermal conduction connection with the heating element; The water absorption structure is attached to the cavity wall of the vaporization cavity in heat conduction connection with the heating body; The vaporization cavity has a liquid inlet, the liquid inlet is in communication with the liquid supply channel, and a third check valve is arranged at the liquid inlet.

9. The straightening iron of claim 8, wherein the heating element is a wire having a diameter of 0.5 mm to 2 mm. The heating plate assembly further comprises a heat-conducting plate, the heat-conducting plate is arranged on the side of the heating body away from the ironing plate, and part of the cavity wall of the vaporization cavity is formed by the heat-conducting plate to be in heat conduction connection with the heating body; The heating plate assembly further comprises a mounting member, the mounting member has a steam groove, a bottom wall of the steam groove is provided with a liquid inlet in communication with the liquid supply channel, and the heat-conducting plate is sealingly covered on the groove opening of the steam groove to form the vaporization cavity; The steam groove comprises a first groove body and a second groove body, the first groove body and the second groove body are arranged along the width direction of the clamping plate and are in communication through a gap, the heat-conducting plate is sealingly covered on the groove opening of the first groove body and the groove opening of the second groove body, the bottom wall of the first groove body is provided with the liquid inlet, and the steam outlet is in communication with the second groove body; The first groove body and the second groove body are both provided with a water absorption structure.

10. The straightening iron of claim 8, wherein the heating element is a wire having a diameter of 0.5 mm to 2 mm. The steam outlet is located beside the ironing plate, or a fourth through hole is arranged on the ironing plate, and the steam outlet is arranged corresponding to the fourth through hole.

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