Heat insulation structure of anti-scald hairdressing device

Abstract

The utility model discloses a heat insulation structure of an anti-scald hairdressing device, and belongs to the field of hairdressing products, the heat insulation structure comprises mutually hinged shells, a heating plate fixedly arranged on the inner side, close to the movable end, of the shell, and a protection structure arranged on the outer side of the heating plate; the protection structure comprises a limiting groove formed in the shell, a lifting plate capable of moving up and down in the limiting groove, a spring fixedly arranged in the limiting groove and connected with the lower end of the lifting plate, and a protection shell inserted into the shell in a sliding mode and fixedly connected with the upper end of the lifting plate. The protection height is dynamically adjusted through the liftable protection shell, differential protection of the hairdressing device under the use state and the storage state is achieved, the edge of the heating plate can be completely covered during operation, hand scalding caused by mistaken touch is avoided, the protruding part of the heating plate can be reasonably avoided during storage, and safety and use convenience are both considered.

Description

A heat insulation structure for a hair styling device to prevent burns Technical Field

[0001] This application relates to the field of hair care product technology, specifically a heat insulation structure for a hair care device that prevents burns. Background Technology

[0002] In the field of hair styling device technology, Chinese utility model patent CN216776347U discloses a hair styling device with an anti-scalding structure. This device uses an anti-scalding part attached to the outer side of the heating plate, employing heat-insulating material to prevent direct contact between the user and the high-temperature heating plate, thus reducing the risk of burns. However, the anti-scalding part in this device is fixedly connected to the housing, and its height is designed to be lower than or flush with the height of the heating plate. In actual use, when the user needs to operate the control buttons inside the housing, the housing obstructs the view, making it easy for the hand to accidentally touch the edge area of ​​the anti-scalding part during blind operation. Due to the insufficient height of the anti-scalding part, its edges do not completely cover the edge of the heating plate, allowing the hand to potentially contact the high-temperature heating plate body through the height difference or edge gap between the anti-scalding part and the heating plate, resulting in burns.

[0003] Therefore, this application provides a heat insulation structure for a hair styling device to prevent burns, in order to solve the above-mentioned problems. Summary of the Invention

[0004] This application provides a heat insulation structure for a hair styling device designed to prevent burns. The purpose is to solve the problems mentioned in the background art, such as the existing hair styling devices having an anti-scalding part that is fixedly connected to the shell and insufficient height, which leads to users accidentally touching the high-temperature heating plate and getting burned when operating the buttons due to obstructed vision.

[0005] To achieve the above objectives, this application provides the following technical solution: a heat insulation structure for a hair styling device to prevent burns, comprising a shell hinged together, a heating plate fixedly disposed on the inner side of the shell near its movable end, and a protective structure disposed on the outer side of the heating plate;

[0006] To improve the protection of the heating plate, the protective structure includes a limiting groove inside the housing, a lifting plate that can move up and down within the limiting groove, a spring fixedly installed in the limiting groove and connected to the lower end of the lifting plate, and a protective shell slidably inserted into the housing and fixedly connected to the upper end of the lifting plate. When the movable ends of the two hinged housings open, the spring pushes the lifting plate up within the limiting groove through its elastic force, causing the protective shell to rise synchronously, making its height higher than the heating plate, forming a complete anti-scalding barrier. When the movable ends of the housings approach each other, the protective shells on both sides move downwards due to compression, overcoming the spring force, so that the height of the protective shell is slightly lower than or flush with the protrusion of the heating plate, avoiding interference with the normal fit of the heating plate.

[0007] Preferably, the spring is made of spring steel or stainless steel. By selecting high-strength, fatigue-resistant, and corrosion-resistant materials, the service life and reliability of the spring are significantly improved, avoiding spring failure or corrosion due to long-term frequent lifting and lowering, and ensuring the stable and long-lasting lifting function of the protective shell.

[0008] Preferably, the protective shell is made of heat-insulating material. Through the physical properties of the heat-insulating material, heat transfer from the heating plate to the outside is blocked. Even if the protective shell is in direct contact with the heating plate, its surface temperature remains within a safe range, further enhancing the anti-scalding effect and preventing users from being burned by touching the protective shell itself.

[0009] Preferably, to avoid affecting the normal use of the heating plate, the protective shell has a groove along its length that corresponds to the clamping groove between adjacent protrusions on the heating plate. By creating a groove on the protective shell that corresponds to the clamping groove of the protrusion on the heating plate, it is ensured that the heating plate can properly clamp the hair during the styling process, thus not affecting its hair-styling function, and the groove's structural design also ensures that the protective shell covers the edge of the heating plate, achieving compatibility between protection and function.

[0010] Preferably, to facilitate the placement of hair within the groove, the cross-section of the groove is shaped like an inverted isosceles trapezoid. The inner wall of the inverted isosceles trapezoidal groove forms a guiding structure that is wider at the top and narrower at the bottom, making it easier for the user to smoothly guide the hair into the clamping slot of the heating plate, reducing hair jamming or tangling, and improving operational convenience and hair styling efficiency.

[0011] Preferably, to facilitate adjustment of the spring's tightness, the housing is provided with an adjustment mechanism for adjusting the spring's tightness. The adjustment mechanism includes an adjustment plate disposed in the limiting groove and abutting against the lower end of the spring, and a knurled screw threaded into the housing and rotatably connected to the adjustment plate. By manually adjusting the knurled screw, the initial compression of the spring can be flexibly adjusted. This optimizes the lifting sensitivity of the protective housing according to usage habits and releases spring pressure during storage, preventing long-term compression from causing plastic deformation of the spring and extending the device's service life.

[0012] This application achieves differentiated protection for the hair styling device in "use state" and "storage state" by dynamically adjusting the protective height of the lifting protective shell. It can completely cover the edge of the heating plate during operation to avoid accidental burns from hand contact, and reasonably avoid the protruding part of the heating plate when storing, thus balancing safety and ease of use.

[0013] This application allows for flexible adjustment of the initial compression (i.e., tightness) of the spring by manually adjusting the knurled screws. This not only optimizes the lifting sensitivity of the protective shell according to usage habits, but also releases the spring pressure during storage, preventing long-term compression from causing plastic deformation of the spring and extending the service life of the device. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the heat insulation structure of a hair styling device to prevent burns;

[0015] Figure 2 shows the structural diagram of the connection between the shell, the heating plate, and the protective shell;

[0016] Figure 3 is a front view of the internal structure of the shell in Figure 2;

[0017] Figure 4 is a schematic diagram of the protective structure;

[0018] Figure 5 is a schematic diagram of the adjustment mechanism.

[0019] In the picture:

[0020] 1. Housing; 2. Heating plate; 3. Protective structure; 31. Limiting groove; 32. Lifting plate; 33. Spring; 34. Protective shell; 341. Groove; 4. Adjustment mechanism; 41. Adjustment plate; 42. Knurled screw. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Example 1

[0023] This embodiment provides a heat insulation structure for a hair styling device to prevent burns, as shown in Figures 1-5. The heat insulation structure includes a shell 1 that is hinged to each other, a heating plate 2 that is fixedly disposed on the inner side of the shell 1 near its movable end, and a protective structure 3 disposed on the outer side of the heating plate 2.

[0024] To enhance the protection of the heating plate 2, the protective structure 3 includes a limiting groove 31 inside the housing 1, a lifting plate 32 that can move up and down within the limiting groove 31, a spring 33 fixedly installed within the limiting groove 31 and connected to the lower end of the lifting plate 32, and a protective shell 34 that is slidably inserted into the housing 1 and fixedly connected to the upper end of the lifting plate 32. The height of the protective shell 34 can be dynamically adjusted to achieve differentiated protection for the hair styling device in its "use state" and "storage state." This ensures complete coverage of the edge of the heating plate 2 during operation, preventing accidental burns, while also reasonably avoiding the protrusions of the heating plate 2 during storage, thus balancing safety and ease of use. When the movable ends of the two hinged housings 1 are open (i.e., the hair styling device is in use), the spring 33 pushes the lifting plate 32 to rise in the limiting groove 31 through elastic force, causing the protective shell 34 to rise synchronously, making its height higher than the heating plate 2, forming a complete anti-scalding barrier; when the movable ends of the housings 1 are close to each other (i.e., in the retracted or closed state), the protective shells 34 on both sides move downward due to the compression to overcome the elastic force of the spring 33, so that the height of the protective shell 34 is slightly lower than or level with the protrusion of the heating plate 2, avoiding interference with the normal fit of the heating plate 2.

[0025] Spring 33 is made of spring steel and stainless steel. By selecting high-strength, fatigue-resistant, and corrosion-resistant materials, the service life and reliability of spring 33 are significantly improved, preventing spring 33 from failing or corroding due to long-term frequent lifting and lowering, and ensuring the stable and long-lasting lifting function of protective shell 34. Utilizing the high elastic modulus and deformation resistance of spring steel and stainless steel, spring 33 maintains stable elastic properties during repeated compression and reset, continuously providing reliable driving force or buffering force for lifting plate 32, ensuring the long-term effective operation of protective structure 3.

[0026] The protective shell 34 is made of heat-insulating material. Through the physical properties of this material, heat transfer from the heating plate 2 to the outside is blocked. Even if the protective shell 34 is in direct contact with the heating plate 2, its surface temperature remains within a safe range, further enhancing the anti-scalding effect and preventing users from being burned by touching the protective shell 34 itself. The protective shell 34 is made of heat-insulating materials with low thermal conductivity (such as ceramic fiber, heat-insulating plastic, etc.), forming a thermal resistance barrier that confines the high temperature of the heating plate 2 inside the device. This ensures that the outer surface temperature of the protective shell 34 is significantly lower than that of the heating plate 2, thus achieving "no burns upon contact" safety protection.

[0027] To ensure the normal use of the heating plate 2, a groove 341 is provided on the protective shell 34 along its length, corresponding to the clamping groove between adjacent protrusions on the heating plate 2. By creating the groove 341 on the protective shell 34 corresponding to the clamping groove of the protrusion on the heating plate 2, it is ensured that the heating plate 2 can properly clamp the hair during styling, without affecting its hair-setting function. The design of the groove 341 also maintains the protective shell 34's coverage of the edge of the heating plate 2, achieving compatibility between protection and function. When using the hair styling device to curl hair, the hair can be inserted into the clamping groove between adjacent protrusions on the heating plate 2 through the groove 341. The position and size of the groove 341 precisely match the clamping groove, allowing the protective shell 34 to cover the edge of the heating plate 2 while providing space for the hair to pass through. This ensures that the heating plate 2 can effectively contact the hair and apply heat, without affecting normal hair styling operations.

[0028] To facilitate the placement of hair within the groove 341, the cross-section of the groove 341 is shaped like an inverted isosceles trapezoid. The inner wall of the inverted isosceles trapezoidal groove 341 forms a guiding structure that is wider at the top and narrower at the bottom, making it easier for the user to smoothly guide hair into the clamping slot of the heating plate 2, reducing hair getting stuck or tangled, and improving operational convenience and hair styling efficiency. The upper edge of the groove 341 is wider than the lower edge, using the inclined inner wall to guide the hair. When hair contacts the groove 341, it can slide down the inclined surface to the bottom under the action of gravity or hand pushing force, accurately falling into the clamping slot of the heating plate 2, avoiding the problem of hair being difficult to place due to the groove 341 being too narrow or vertical.

[0029] Example 2

[0030] Unlike Embodiment 1, to facilitate adjustment of the tightness of the spring 33, the housing 1 is equipped with an adjustment mechanism 4 for adjusting the tightness of the spring 33. The adjustment mechanism 4 includes an adjustment plate 41 disposed in the limiting groove 31 and abutting against the lower end of the spring 33, and a knurled screw 42 threaded onto the housing 1 and rotatably connected to the adjustment plate 41. By manually adjusting the knurled screw 42, the initial compression (i.e., tightness) of the spring 33 can be flexibly adjusted. This allows for optimization of the lifting sensitivity of the protective shell 34 according to usage habits, and also releases the pressure of the spring 33 during storage, preventing long-term compression from causing plastic deformation of the spring 33 and extending the service life of the device. When the knurled screw 42 is turned, the screw's thread rotates, causing the adjusting plate 41 to move up and down within the limiting groove 31: when the screw is turned clockwise, the adjusting plate 41 rises, increasing the compression force on the spring 33 (strengthening the spring 33's tightness), making the protective shell 34 rise more forcefully; when the screw is turned counterclockwise, the adjusting plate 41 falls, reducing the compression force on the spring 33 (weakening the spring 33's tightness). When the device is stored, the lower end of the adjusting plate 41 contacts the bottom wall of the limiting groove 31, and the spring 33 is in a natural or slightly compressed state, avoiding long-term deformation due to stress.

[0031] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A heat insulation structure for a hair styling device to prevent burns, comprising a shell (1) hinged together, a heating plate (2) fixedly disposed on the inner side of the shell (1) near its movable end, and a protective structure (3) disposed on the outer side of the heating plate (2); characterized in that: The protective structure (3) includes a limiting groove (31) disposed inside the housing (1), a lifting plate (32) that can move up and down within the limiting groove (31), a spring (33) fixedly disposed within the limiting groove (31) and connected to the lower end of the lifting plate (32), and a protective shell (34) slidably inserted into the housing (1) and fixedly connected to the upper end of the lifting plate (32).

2. The heat insulation structure of the anti-scalding hair styling device according to claim 1, characterized in that: The spring (33) is made of spring steel or stainless steel.

3. The heat insulation structure of the anti-scalding hair styling device according to claim 1, characterized in that: The protective shell (34) is made of heat-insulating material.

4. The heat insulation structure of the anti-scalding hair styling device according to claim 1, characterized in that: The protective shell (34) has a groove (341) along its length that corresponds to the groove between adjacent protrusions on the heating plate (2).

5. The heat insulation structure of the anti-scalding hair styling device according to claim 4, characterized in that: The cross-section of the groove (341) is an inverted isosceles trapezoid.

6. The heat insulation structure of the anti-scalding hair styling device according to claim 1, characterized in that: The housing (1) is provided with an adjustment mechanism (4) for adjusting the tightness of the spring (33). The adjustment mechanism (4) includes an adjustment plate (41) disposed in the limiting groove (31) and abutting against the lower end of the spring (33), and a knurled screw (42) threaded into the housing (1) and rotatably connected to the adjustment plate (41).

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