A straightening comb air nozzle for a hair dryer

By using an alternating first and second tooth plate design, combined with a heating element and a hollow structure hair dryer straightener nozzle, the problem of insufficient tooth spacing is solved, resulting in better hair combing and styling effects, while also improving production yield and reducing costs.

CN224403106UActive Publication Date: 2026-06-26DONGGUAN KANGROAD ELECTRICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN KANGROAD ELECTRICAL TECH CO LTD
Filing Date
2025-06-07
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The comb body of existing hair straighteners is made of one-piece die casting, which makes it difficult to form a small gap between the comb teeth, resulting in poor combing effect.

Method used

The design employs an alternating distribution of the first and second tooth plates, forming a smaller gap through assembly. Heating elements are placed between the comb teeth, and the hollow main body is used for airflow heating. Combined with plastic comb teeth and air outlet grooves, airflow is improved.

Benefits of technology

This resulted in better hair combing and styling, improved the yield rate of finished products, and reduced production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN224403106U_ABST
Patent Text Reader

Abstract

The utility model provides a straight combing of hair dryer's comb wind nozzle for installing at the air outlet end of hair dryer, including main part and hardware comb body, hardware comb body is formed by assembling between first tooth plate and second tooth plate, a plurality of first comb teeth are integrally formed on first tooth plate, a plurality of second comb teeth are integrally formed on second tooth plate, after assembling first tooth plate with second tooth plate, each first comb tooth, second comb tooth is staggered distribution between, and forms the clearance between adjacent first comb tooth, second comb tooth, second tooth plate is provided with heating element on the side close to the air outlet, the main part is hollow structure, and has the air inlet in one end communication, is equipped with the air outlet in the other end, is covered with a plurality of arcuate tooth parts on the air outlet, after assembling hardware comb body with the main part, each first comb tooth, second comb tooth is installed in each tooth part respectively, and through the independent forming of first tooth plate, second tooth plate and then assembling, can form the tiny gap better between first comb tooth, second comb tooth.
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Description

Technical Field

[0001] This utility model belongs to the field of hair dryers, specifically relating to a hair straightening comb nozzle for a hair dryer. Background Technology

[0002] Hair dryers are a common hair care tool, widely used for their ability to dry and style hair. A hair dryer typically consists of a main unit, a hollow outer shell, and an air guide ring. A fan inside the main unit generates hot air, which is then blown out from the air outlet to dry and style the hair. Hair dryers can also be fitted with nozzles with other functions, such as straightening comb nozzles. However, the comb body of existing straightening comb nozzles is usually a one-piece die-cast design. The mold used for this one-piece die-casting process... Figure 10 As shown, the thickness of its molded part 103 is relatively small, which makes the strength of the molded part 103 low. It is easy to deform and be damaged during the die casting process. Therefore, it is difficult for the one-piece die-cast comb body to form a small comb tooth spacing. If the comb tooth spacing is too wide, it will not achieve a better combing effect on the hair. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] This utility model provides a hair straightening comb nozzle for a hair dryer, which aims to solve the problem that it is difficult to form a small gap between the comb teeth when the comb body is made of one piece of die casting, while a gap that is too wide will not achieve a better combing effect on the hair.

[0005] (2) Technical solution

[0006] This utility model provides a hair straightening comb nozzle for a hair dryer, which is installed at the air outlet of the hair dryer. It includes a main body and a metal comb body. The metal comb body is formed by assembling a first tooth plate and a second tooth plate. The first tooth plate has a plurality of first comb teeth integrally formed, and the second tooth plate has a plurality of second comb teeth integrally formed. After the first tooth plate and the second tooth plate are assembled, the first comb teeth and the second comb teeth are staggered and a gap is formed between adjacent first comb teeth and second comb teeth. The second tooth plate is provided with a heating element on the side near the air outlet. The main body has a hollow structure and is connected to an air inlet at one end and an air outlet at the other end. The air outlet is used to install the metal comb body and is connected to the gap. The air outlet is covered with a plurality of arched teeth arranged in a line. After the metal comb body is assembled with the main body, each of the first comb teeth and the second comb teeth is respectively limited and installed in the respective teeth.

[0007] Preferably, the first toothed plate has a through mounting position in the middle for mounting the second toothed plate, and each of the first comb teeth is arranged in a straight line covering one side of the mounting position.

[0008] Preferably, each of the first comb teeth and the second comb teeth has a first arc surface and a second arc surface on both sides. The first arc surface is located on one side of the gap and protrudes towards the gap, while the second arc surface is located on the other side of the gap and is recessed away from the gap.

[0009] Preferably, the width of the gap is 0.8 mm to 0.8 mm.

[0010] Preferably, after the second toothed plate is installed in the mounting position, an air blowing port is formed between the second toothed plate and the mounting position, and the air blowing port communicates with the gap.

[0011] Preferably, each of the first comb teeth and the second comb teeth is provided with an arched first limiting groove and a second limiting groove, and each of the teeth is provided with a first limiting member and a second limiting member corresponding to the first limiting groove and the second limiting groove, respectively, on the inner wall of the arch hole.

[0012] Preferably, each of the first limiting grooves extends toward the first toothed plate at both ends and forms a first opening, and the first toothed plate is provided with a second opening between each of the first openings, and each of the second openings corresponds to each of the second limiting grooves.

[0013] Preferably, the second limiting member includes an arched portion and limiting portions located at both ends of the arched portion, the arched portion engaging with the second limiting groove, and the limiting portions engaging with the second opening.

[0014] Preferably, a plurality of plastic comb teeth are arranged at both ends of the air outlet, and each plastic comb tooth corresponds to a position of a gap.

[0015] Preferably, an air outlet groove is provided between each of the plastic comb teeth and the air outlet, and the air outlet groove is connected to the air inlet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The air inlet of the main body is installed on the air outlet of the hair dryer. When the hair dryer is operating, airflow enters the air inlet of the main body through the air outlet and is blown out through the air outlet. After reaching the air outlet, the airflow is heated by the heating element and then divided into various gaps by the first and second comb teeth, thus reheating the blown airflow. During use, the user holds the hair dryer and combs the hair using the combs on the hair dryer. During this process, the hair is divided into several strands by the teeth and collected in the gaps between the teeth. Hot air is blown into the hair strands in the gaps between the teeth, achieving both drying and styling of wet hair, as well as styling of dry hair, satisfying various needs. The design ensures good heat conduction of the metal comb body when the heating element is heated, thus better heating of the user's hair for better drying and styling results. During production, the first tooth plate and its first comb teeth are integrally die-cast, and the second tooth plate and its second comb teeth are integrally die-cast. These are then assembled to create an alternating distribution between the first and second comb teeth. This results in a smaller gap between the first and second comb teeth. Compared to existing methods that directly die-cast the entire comb body, this method achieves a smaller gap between the first and second comb teeth while maintaining the structural strength of the die-casting mold, improving yield and reducing production costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model installed on a hair dryer.

[0019] Figure 2 This is a schematic diagram of the structure of the metal comb body of this utility model.

[0020] Figure 3 This is one of the exploded views of the metal comb body of this utility model.

[0021] Figure 4 This is the second exploded view of the metal comb body of this utility model.

[0022] Figure 5 This is a cross-sectional view of the first comb tooth of this utility model.

[0023] Figure 6 This is a cross-sectional view of the second comb tooth of this utility model.

[0024] Figure 7 This is an exploded view of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the hair strand entering the gap according to this utility model.

[0026] Figure 9This is a schematic diagram of the mold used to produce the first toothed plate or the second toothed plate of this utility model.

[0027] Figure 10 This is a schematic diagram of the structure of an existing mold used to produce metal comb bodies.

[0028] Figure label:

[0029] 1-Main body, 10-Hair dryer, 101-Upper part, 102-Lower part, 2-Metal comb body, 20-Air inlet, 201-Air outlet, 202-Gap, 203-Plastic comb teeth, 204-Air outlet groove, 21-Tooth part, 211-First limiting component, 212-Second limiting component, 2121-Archive part, 2122-Limiting part, 22-First tooth plate, 221-First comb tooth, 222-Mounting position, 223-First limiting groove, 224-Second opening, 23-Second tooth plate, 231-Second comb tooth, 232-Second limiting groove, 24-Heating element, 241-First arc surface, 242-Second arc surface, 243-Air outlet. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] like Figures 1-10 As shown, this utility model provides a hair straightening comb nozzle for a hair dryer, used to be installed at the air outlet of a hair dryer 10. It includes a main body 1 and a metal comb body 2. The metal comb body 2 is formed by assembling a first toothed plate 22 and a second toothed plate 23. A plurality of first comb teeth 221 are integrally formed on the first toothed plate 22, and a plurality of second comb teeth 231 are integrally formed on the second toothed plate 23. After the first toothed plate 22 and the second toothed plate 23 are assembled, the first comb teeth 221 and the second comb teeth 231 are staggered and interleaved, with adjacent first comb teeth 221 and second comb teeth 231 interleaved. A gap 202 is formed between the comb teeth 231. The second tooth plate 23 is provided with a heating element 24 on the side near the air outlet 201. The main body 1 has a hollow structure and is connected to an air inlet 20 at one end and an air outlet 201 at the other end. The air outlet 201 is used to install the hardware comb body 2 and is connected to the gap 202. The air outlet 201 is covered with a number of arched teeth 21 arranged in a row. After the hardware comb body 2 is assembled with the main body 1, each of the first comb teeth 221 and the second comb teeth 231 is respectively limited and installed in each of the teeth 21.

[0032] Furthermore, such as Figures 2-4A mounting position 222 is provided through the center of the first toothed plate 22 for mounting the second toothed plate 23. Each of the first comb teeth 221 is arranged in a straight line, covering one side of the mounting position 222. Each of the first comb teeth 221 and the second comb teeth 231 has a first arc surface 241 and a second arc surface 242 formed on both sides. The first arc surface 241 is located on one side of the gap 202 and protrudes towards the gap 202. The second arc surface 242 is located on the other side of the gap 202 and is recessed away from the gap 202. The width of the gap 202 is 0.8mm-1mm. Specifically, the mounting position 222 has a groove-shaped structure. The first toothed plates 22 are combined at their ends near the mounting position 222 to form the inner bottom wall of the mounting position 222. During assembly, the second toothed plate 23 is installed inside the mounting position 222, with the side of the second toothed plate 23 integrally formed with the second comb teeth 231 abutting against the inner bottom wall of the mounting position 222 formed by the combination of the first toothed plates 22. The first toothed plates 22 and the second toothed plates 23 are then fixedly assembled using bolts to form the metal comb body 2. At this point, the first toothed plates 22 and the second toothed plates 23 are staggered. The heating element 24 is then fixed to the side of the second toothed plate 23 away from the first toothed plate 22. Finally, the metal comb body 2 is encapsulated within the main body 1. At this point, each first toothed plate 22 and the second toothed plate 23 is respectively positioned within the arched holes of each tooth portion 21 of the main body 1. The air inlet 20 of the main body 1 is installed at the air outlet of the blower 10, and then the blower... 10. During blow-drying, the user holds the hair dryer 10 and uses the metal comb 2 located in the air outlet 201 of the main body 1 to divide the hair into several strands and comb them. The airflow enters the gap 202 between the teeth 21 through the air outlet 201 and blows heat the hair strands in the gap 202. During this process, the hair strands slide within the gap 202. By setting the first arc surface 241 and the second arc surface 242, the length of the hair strands within the gap 202 can be increased, allowing the hair strands to receive more and more hot air within the gap 202 for more thorough heating, thus achieving better drying and styling effects. Alternatively, setting the width of the gap 202 to 0.8mm-1mm can reduce the diameter of the hair strands within the gap 202, ensuring that the hair strands within the gap 202 are fully heated and avoiding the phenomenon of poor heating effect and uneven heating at the center of excessively large diameter hair strands. It is worth noting that, if... Figure 7 As shown, the heating element 24 is a PTC heating element 24, and the PTC heating element 24 can be equipped with various power supply methods. It can be powered by a battery, in which case the battery can be set on the outer wall of the main body 1, and the power supply line of the PTC heating element 24 can pass through the main body 1 and be connected to the battery to achieve power supply. Other power supply methods in the prior art can also be used, which will not be described in detail here.

[0033] Furthermore, such as Figure 8As shown, a mounting position 222 is provided through the middle of the first toothed plate 22 for mounting the second toothed plate 23. Each of the first comb teeth 221 is arranged in a straight line and covers one side of the mounting position 222. After the second toothed plate 23 is installed in the mounting position 222, a blower opening 243 is formed between the second toothed plate 23 and the mounting position 222. The blower opening 243 communicates with the gap 202. Specifically, the air inlet 20 of the main body 1 is installed on the air outlet of the hair dryer 10. When the hair dryer 10 is running, the airflow enters the main body 1 through the air inlet 20 and is heated by the heating element 24. The air then passes through the blower opening 243 and is blown into the gap 202, achieving the effect of blowing hot air onto the hair.

[0034] Furthermore, such as Figures 5-6 As shown, each of the first comb teeth 221 and the second comb teeth 231 is provided with an arched first limiting groove 223 and a second limiting groove 232, respectively. Each tooth portion 21 has a first limiting member 211 and a second limiting member 212 corresponding to the first limiting groove 223 and the second limiting groove 232, respectively, on the inner wall of the arched hole. Each of the first limiting grooves 223 extends towards the first tooth plate 22 at both ends and forms a first opening. The first tooth plate 22 has a second opening 224 between each of the first openings, and each of the second openings 224 corresponds to each of the second limiting grooves 232. The second limiting member 212 includes an arched portion 2121 and limiting portions 2122 located at both ends of the arched portion 2121. The arched portion 2121 is limited and engaged with the second limiting groove 232, and the limiting portion 2122 is limited and engaged with the second opening 224. Specifically, after integrally die-casting the first toothed plate 22 and its first comb teeth 221, and integrally die-casting the second toothed plate 23 and its second comb teeth 231, during assembly, the second toothed plate 23 is installed in the mounting position 222 of the first toothed plate 22 to form the metal comb body 2, so that the first comb teeth 221 and the second comb teeth 231 are staggered. The metal comb body 2 is then injection-molded to form the main body 1. At this time, the corresponding teeth 21 on the main body 1 are on the first limit of the first comb teeth 221. A first limiting member 211 is formed in the groove 223 to limit the first comb tooth 221. Each corresponding tooth 21 forms an arched portion 2121 of the second limiting member 212 in the second limiting groove 232 on the second comb tooth 231 to limit the second comb tooth 231. The arched portion 2121 extends into the second opening 224 on the first tooth plate 22 to form the limiting portion 2122 of the second limiting member 212, thereby achieving the positional fixation effect between the second comb tooth 231 and the first tooth plate 22.

[0035] Furthermore, such as Figures 7-8As shown, a plurality of plastic comb teeth 203 are arranged at both ends of the air outlet 201, and each plastic comb tooth 203 corresponds to the position of each gap 202. An air outlet groove 204 is provided between each plastic comb tooth 203 and the air outlet 201, and the air outlet groove 204 is connected to the air inlet 20. Specifically, after the air inlet 20 of the main body 1 is installed at the air outlet of the hair dryer 10, the hair dryer 10 blows air through it. The user holds the hair dryer 10 and uses the metal comb 2 located in the air outlet 201 of the main body 1 to separate the hair into several hair bundles and comb them. During the combing process, the hair first passes through the plastic comb teeth 203 to separate the hair into hair bundles. The hair bundles are then further separated by each tooth 21 to form new hair bundles and are guided into the corresponding gaps 202 for blowing and heating. That is, the hair is separated twice to form hair bundles before entering the gaps 202 for heating, which can better comb the hair smoothly and greatly reduce the possibility of tangled hair entering the gaps 202, thus achieving a guiding effect. At the same time, by setting the air outlet 204, the hair dryer 10 can blow air into the main body 1. After being heated by the PTC heating element 24, the air flows out through the air outlet 204 on both sides of the air outlet 201 and blows the hair dry, improving the smoothness of airflow and increasing the airflow speed at the air outlet 204, thus achieving a better drying effect.

[0036] The following is a detailed explanation of the working principle of this utility model;

[0037] The air inlet 20 of the main body 1 is installed on the air outlet of the hair dryer 10. When the hair dryer 10 is operating, the airflow enters the air inlet 20 of the main body 1 through the air outlet of the hair dryer 10 and is blown out through the air outlet 201 of the main body 1. After the airflow reaches the air outlet 201, it is heated by the heating element 24 and is divided into various gaps 202 by the first comb teeth 221 and the second comb teeth 231, thereby reheating the blown airflow. When in use, the user holds the hair dryer 10 and combs the hair with the comb body 2 on the hair dryer 10. During this process, the hair is combed by the various teeth. The comb body 21 is divided into several hair bundles and stored in the gaps 202 between the teeth 21. Hot air is blown through the gaps 202 between the teeth 21 onto the hair bundles in the gaps 202, enabling both drying and styling of wet hair, as well as styling of dry hair, satisfying various usage needs. The comb body 2 has good heat conduction when the heating element 24 is heated, thus better heating of the user's hair and achieving better drying and styling results. During production, the first tooth plate 22 and each of the first comb teeth 221 on it are integrally die-cast, such as... Figure 9As shown, by forming a cavity in the molding part 103 of the mold to accommodate the second comb teeth 231, the second tooth plate 23 and each of the second comb teeth 231 on it are integrally die-cast. By forming a cavity in the molding part 103 of the mold to accommodate the first comb teeth 221, the two are assembled to form the metal comb body 2. At this time, the first comb teeth 221 and the second comb teeth 231 are staggered, and a small gap 202 can be formed between the first comb teeth 221 and the second comb teeth 231. The assembled metal comb is then... The body 2 is placed in an injection mold for injection molding. During injection molding, the upper half 101 of the main body 1, i.e., the part of the main body 1 with several teeth, is injection molded onto the metal comb body 2. After molding, the metal comb body 2 and the upper half of the main body 1 are connected and assembled with bolts to form a semi-finished product. The semi-finished product is then placed in another injection mold for injection molding. During injection molding, the lower half 102 of the main body 1, i.e., the part of the main body 1 with the air inlet, is injection molded onto the semi-finished product to form the finished product, achieving a sealing effect. Existing methods using molds such as... Figure 10 As shown, directly die-casting the comb body as a whole, and forming a small gap between the comb teeth through the forming part 103, requires the thickness of the forming part 103 to be reduced. This makes the forming part 103 prone to deformation during the die-casting process, resulting in damage to the die core of the die-casting mold.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hair straightening nozzle for a hair dryer, for mounting on the air outlet of a hair dryer (10), characterized in that: The comb body includes a main body (1) and a metal comb body (2). The metal comb body (2) is formed by assembling a first toothed plate (22) and a second toothed plate (23). A plurality of first comb teeth (221) are integrally formed on the first toothed plate (22), and a plurality of second comb teeth (231) are integrally formed on the second toothed plate (23). After the first toothed plate (22) and the second toothed plate (23) are assembled, the first comb teeth (221) and the second comb teeth (231) are staggered and a gap (202) is formed between adjacent first comb teeth (221) and second comb teeth (231). The two-tooth plate (23) has a heating element (24) on one side near the air outlet (201). The main body (1) has a hollow structure and is connected to an air inlet (20) at one end and an air outlet (201) at the other end. The air outlet (201) is used to install the metal comb body (2) and is connected to the gap (202). The air outlet (201) is covered with several arched teeth (21) arranged in a line. After the metal comb body (2) is assembled with the main body (1), each of the first comb teeth (221) and the second comb teeth (231) are respectively limited and installed in each of the teeth (21).

2. The hair straightening nozzle of the hair dryer according to claim 1, characterized in that: The first toothed plate (22) has a through mounting position (222) in the middle for mounting the second toothed plate (23), and each of the first comb teeth (221) is arranged in a line covering one side of the mounting position (222).

3. The hair straightening nozzle of the hair dryer according to claim 2, characterized in that: Each of the first comb teeth (221) and the second comb teeth (231) has a first arc surface (241) and a second arc surface (242) on both sides. The first arc surface (241) is located on one side of the gap (202) and protrudes towards the gap (202). The second arc surface (242) is located on the other side of the gap (202) and is recessed away from the gap (202).

4. The hair straightening nozzle of the hair dryer according to claim 3, characterized in that: The width of the gap (202) is 0.8mm-1mm.

5. The hair straightening nozzle of the hair dryer according to claim 2, characterized in that: After the second toothed plate (23) is installed in the mounting position (222), an air outlet (243) is formed between the second toothed plate (23) and the mounting position (222), and the air outlet (243) communicates with the gap (202).

6. The hair straightening nozzle of the hair dryer according to claim 1, characterized in that: Each of the first comb teeth (221) and the second comb teeth (231) is provided with an arched first limiting groove (223) and a second limiting groove (232), and each of the teeth (21) is provided with a first limiting member (211) and a second limiting member (212) corresponding to the first limiting groove (223) and the second limiting groove (232) respectively on the inner wall of the arch hole.

7. The hair straightening nozzle of the hair dryer according to claim 6, characterized in that: Each of the first limiting grooves (223) extends toward the first toothed plate (22) at both ends and forms a first opening. The first toothed plate (22) is provided with a second opening (224) between each of the first openings. Each of the second openings (224) corresponds to each of the second limiting grooves (232).

8. The hair straightening nozzle of the hair dryer according to claim 7, characterized in that: The second limiting member (212) includes an arched portion (2121) and limiting portions (2122) located at both ends of the arched portion (2121). The arched portion (2121) is limited to the second limiting groove (232), and the limiting portion (2122) is limited to the second opening (224).

9. The hair straightening nozzle of the hair dryer according to claim 1, characterized in that: The air outlet (201) has several plastic comb teeth (203) arranged at both ends, and each plastic comb tooth (203) corresponds to the position of each gap (202).

10. The hair straightening nozzle of the hair dryer according to claim 9, characterized in that: An air outlet groove (204) is provided between each of the plastic comb teeth (203) and the air outlet (201), and the air outlet groove (204) is connected to the air inlet (20).