A nozzle structure for a straightening comb

Abstract

This utility model discloses a nozzle structure for a hair straightener. It includes: a main air duct body with a straight geometric center line, an air inlet and an air outlet located at opposite ends of the main air duct body, both situated on the geometric center line; an airflow regulating component inside the main air duct body, comprising a flow divider cone and a guide rib assembly, which evenly divides the interior of the main air duct body into several equal-area air distribution channels; the flow divider cone positioned on the side of the guide rib assembly near the air inlet, with its tip facing the air outlet; and comb teeth located at the air outlet. The advantages of this utility model are: reduced airflow loss, ease of use, convenient processing, and improved hair care efficacy.

Description

Technical Field

[0001] This utility model relates to the technical field of nozzle structure for hair straighteners, and in particular to a nozzle structure for hair straighteners. Background Technology

[0002] High-speed hair dryer straighteners are hair styling tools that combine drying and styling functions, taking into account both styling efficiency and hair care needs. They are especially suitable for naturally curly or coarse hair and have gradually become an efficient hair care choice in fast-paced lifestyles.

[0003] Current high-speed hair dryers use tubular or modified combs for straightening, which have long nozzles and simple structures, resulting in the following problems:

[0004] 1. The current hair straightener nozzle is relatively long, and its internal air duct is also long, resulting in airflow loss. This causes inconsistent airflow at the front and back of the air duct, and the excessive length of the hair straightener nozzle also makes it inconvenient to use.

[0005] 2. The current hair straightener nozzle uses side air outlet, and the air outlet of the nozzle and the air outlet of the main unit are in different directions. This also results in airflow loss and is not suitable for use with high-speed hair dryers.

[0006] 3. Currently, most hair straighteners use nylon needles as comb teeth, which are implanted into the comb, making the process difficult and costly.

[0007] 4. The negative ion and plasma functions of current high-speed hair dryers require related modules on the main unit to realize the functions. The excessively long comb nozzle and internal air duct design reduce the hair care effects of negative ions and plasma.

[0008] There is a need for a nozzle structure for straightening combs that can reduce airflow loss, is easy to use and process, and can improve hair care effects. Utility Model Content

[0009] This invention aims to overcome the shortcomings of existing hair straightener nozzles, such as airflow loss, inconvenience of use, difficulty in processing, and low hair care efficacy. It provides a hair straightener nozzle structure that can reduce airflow loss, is easy to use and process, and can improve hair care efficacy.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A nozzle structure for a hair straightener includes:

[0012] The air duct body has a straight geometric center line. The air duct body is provided with an air duct inlet and an air duct outlet. The air duct inlet and the air duct outlet are located at the port portions at both ends of the air duct body, and both the air duct inlet and the air duct outlet are located on the geometric center line of the air duct body.

[0013] An airflow regulating component is disposed inside the air duct body. The airflow regulating component includes a flow divider cone and a flow guide rib group. The flow guide rib group divides the interior of the air duct body into several air distribution channels with equal areas. The flow divider cone is disposed on the side of the flow guide rib group near the air inlet of the air duct. The tip of the flow divider cone faces the air outlet of the air duct. The width of the bottom circle of the flow divider cone is smaller than the width of the air inlet of the air duct. The central axis of the flow divider cone coincides with the geometric center line of the air duct body.

[0014] A comb tooth component is disposed at the air outlet of the air duct. The comb tooth component includes a base, and the base and the air outlet of the air duct are detachably connected. Several sets of comb teeth are provided on the base, and the comb teeth and the base are integrated into one piece.

[0015] The linear design of the air duct body, with the air inlet and outlet located at opposite ends, minimizes the airflow distance within the duct, significantly reducing airflow loss. This shorter duct design also enhances the effects of negative ions and plasma hair conditioning. Furthermore, the shorter duct path allows for better force distribution and easier use of the straightener after installation, solving the problem of excessively long nozzles in existing straighteners. When high-speed airflow enters the air duct body through the inlet, it is first guided by the surface of the splitter cone and the inner surface of the air duct body, passing through the combined section of the splitter cone and guide ribs, and then through the complete guide rib area. The guide ribs evenly divide the interior of the air duct body into several equal-area air distribution channels, ensuring more uniform airflow throughout the duct body. This results in more even airflow at the outlet and consistent airflow across each channel, leading to better straightening of the hair. The comb teeth and base are designed as a single unit, eliminating the need for nylon needles in traditional hair combs. This simplifies the manufacturing process of the comb teeth, making them easier to process and significantly reducing production costs and increasing production efficiency.

[0016] Preferably, the guide rib assembly consists of a central column and several guide rib plates. The central column is located on the geometric center line of the duct body. The guide rib plates are fixed in a ring between the outer wall of the central column and the inner wall of the duct body. The guide rib plates evenly divide the interior of the duct body into several air distribution channels of equal area. The tip of the flow divider cone is provided with a flow divider cone threaded hole. The central column is provided with a central column threaded hole that matches the flow divider cone threaded hole. The side wall of the flow divider cone is provided with several limiting grooves that correspond one-to-one with the guide rib plates. The guide rib plates are provided with bevels that fit the limiting grooves. During installation, the limiting grooves on the flow divider cone are aligned with the bevels on the guide rib plates for clamping and fixing. Then, the connecting screws are screwed into the threaded holes of the flow divider cone and the central column for fixing, thereby completing the installation and fixing of the flow divider cone. The structure is simple and the operation is convenient. By using a splitter cone and guide ribs to split and guide the high-speed airflow, uneven airflow is avoided, allowing the air duct of the hair straightener to blow out high-speed air evenly and evenly in a shorter path.

[0017] Preferably, the distance between the side edge of the guide rib near the air inlet and the end face of the air inlet is 5-10mm, and the distance between the side edge of the guide rib near the air outlet and the end face of the air outlet is also 5-10mm. By leaving a 5-10mm space redundancy at both the air inlet and outlet, a premixed air duct is formed between the air inlet and the distribution channel, and also between the distribution channel and the air outlet. This allows for thorough premixing of the high-speed airflow and more even air distribution at all directions of the air outlet.

[0018] Preferably, the side of the guide rib near the air inlet of the air duct adopts a rounded transition design. This not only facilitates the entry of high-speed airflow but also reduces wind noise.

[0019] Preferably, a magnetic ring and a positioning rod are provided at the air inlet of the air duct. The magnetic ring is embedded and fixed to the end face of the air duct body, and the positioning rod is fixed to the bottom circle of the diverter cone. The two are ultrasonically welded together, and a sealing ring is sleeved and fixed on the positioning rod. The installation between this application and the fan body adopts a combination positioning scheme of magnetic attraction and positioning rod positioning, which is convenient to operate and easy to disassemble and assemble.

[0020] Preferably, the air outlet of the duct is provided with an annular groove, which is located on the end face of the duct body and outside the air outlet. The base is provided with a convex rib that matches the annular groove. The duct body is provided with a threaded hole, and the base is provided with a threaded hole that matches the threaded hole. During installation, the convex rib on the base is inserted into the annular groove at the air outlet of the duct, and then the connecting screw is screwed into the threaded hole of the base and the threaded hole of the duct body for fixing, thereby completing the installation and fixing of the base. The structure is simple and the operation is convenient. Through the matching design of the annular groove and the convex rib, the sealing requirements can be guaranteed without the need for soft glue sealing, which simplifies the assembly difficulty, minimizes the number of parts, and optimizes the cost.

[0021] Preferably, each set of comb teeth consists of several first-tooth and several second-tooth needles, both of which are integrally injection molded with the base. The length of the first-tooth needle is greater than that of the second-tooth needle, and the first-tooth needle and the second-tooth needle are arranged alternately. The height difference between the first-tooth needle and the second-tooth needle makes it easier to insert into the hair strands and to make the hair more voluminous. After the first-tooth needle has penetrated a certain distance into the hair strand, the second-tooth needle enters. This design makes it easier to insert into various hair lengths and textures, and also makes it easier to pull the hair while combing, reducing resistance.

[0022] Preferably, the base is provided with several ventilation holes, the air distribution channels and ventilation holes are arranged opposite to each other, and the number of ventilation holes corresponding to each air distribution channel is the same. The ratio between the total air outlet area of ​​the ventilation holes and the air inlet area of ​​the air duct is 1:0.9 to 1:1.1. High-speed airflow enters each ventilation hole evenly from the air duct body, so that the air volume and air temperature of each ventilation hole are basically the same when the comb blows out, thereby making the hair strands more evenly heated, the straightening effect better, and the heat damage to the hair less. The total air outlet area of ​​the ventilation holes is basically equal to the air inlet area of ​​the air duct, so that the air volume at the inlet and outlet is consistent, which can greatly reduce the noise in the nozzle.

[0023] Preferably, the outer side of the air duct body is provided with a lower nozzle cover and an upper nozzle cover. The rear and front ends of the lower nozzle cover are respectively provided with a lower rear fastener and a lower front fastener. The surface of the air duct body is provided with a lower rear fastener groove that matches the lower rear fastener. The lower rear fastener groove is located at the end of the air duct body away from the comb teeth. The surface of the base is provided with a lower front fastener groove that matches the lower front fastener. The lower nozzle cover is also provided with a lower nozzle cover threaded hole. The air duct body is provided with a second air duct body threaded hole that matches the lower nozzle cover threaded hole. The rear and front ends of the upper nozzle cover are respectively provided with an upper rear fastener and a upper front fastener. The surface of the air duct body is provided with an upper rear fastener groove that matches the upper rear fastener. The upper rear fastener groove is located at the end of the air duct body away from the comb teeth. The surface of the base is provided with a upper front fastener groove that matches the upper front fastener. The lower nozzle cover is also provided with a lower cover buckle. The upper nozzle cover is provided with an upper cover buckle groove that matches the lower cover buckle. When installing the lower cover of the air nozzle, the rear end of the lower cover engages with the air duct body via a rear lower latch and a rear lower latch groove. Simultaneously, the front end of the lower cover engages with the base via a front lower latch and a front lower latch groove. Then, screw the connecting screws into the threaded holes of the lower cover and the air duct body to secure it, thus completing the installation and fixation of the lower cover. When installing the upper cover of the air nozzle, the rear end engages with the air duct body via a rear upper latch and a rear upper latch groove. Simultaneously, the front end engages with the base via a front upper latch and a front upper latch groove. The upper cover's locking slot and the lower cover's locking clip interlock, thus completing the installation and fixation of the upper cover. This connection method is simple and easy to operate, facilitating installation and disassembly, and reducing the difficulty of later maintenance and repair.

[0024] Preferably, heat-insulating cavities are provided between the inner surface of the lower cover of the air nozzle and the outer surface of the air duct body, and between the inner surface of the upper cover of the air nozzle and the outer surface of the air duct body. A thermal radiation air isolation scheme is adopted between the upper cover of the air nozzle, the lower cover of the air nozzle, and the air duct body, using minimal ribs for restraint. A large-distance heat-insulating cavity serves as the isolation space between the upper cover of the air nozzle, the lower cover of the air nozzle, and the air duct body, achieving overall air isolation. This prevents and slows down the temperature rise of the air duct body after being affected by high-temperature airflow, which is then conducted to the upper and lower covers of the air nozzle, greatly reducing their temperature and thus enabling controllable surface temperature during use.

[0025] The beneficial effects of this utility model are: reduced airflow loss within the main body of the air duct; better hair care effect; easy to use; uniform airflow effect; convenient processing; enables high-speed airflow to be blown out evenly and evenly; high-speed airflow can be fully premixed, resulting in more even airflow; reduces wind noise; makes it easier to insert various types of hair, both long and short, soft and hard, and easier to pull the hair while combing, reducing resistance; the connection method is simple and easy to operate, facilitating installation and disassembly, reducing the difficulty of later maintenance and repair; reduces the temperature of the nozzle top cover and nozzle bottom cover, allowing for controllable surface temperature during use. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is an exploded view of this utility model;

[0028] Figure 3 This is a front view of the present invention;

[0029] Figure 4 This is a right view of the present invention;

[0030] Figure 5 yes Figure 4 Sectional view at point AA;

[0031] Figure 6 yes Figure 4 Sectional view at point BB.

[0032] In the diagram: 1. Main body of the air duct, 2. Air inlet of the air duct, 3. Air outlet of the air duct, 4. Diverter cone, 5. Air distribution channel, 6. Base, 7. Central column, 8. Guide rib, 9. Threaded hole of the diverter cone, 10. Threaded hole of the central column, 11. Limiting groove, 12. Bevel, 13. Magnetic ring, 14. Positioning rod, 15. Sealing ring, 16. Annular groove, 17. Convex rib, 18. Threaded hole one of the main body of the air duct, 19. Threaded hole of the base, 20. Tooth needle one, 21. Tooth needle two, 22. Ventilation hole, 23. Lower cover of the nozzle, 24. Upper cover of the nozzle, 25. Rear lower retaining body, 26. Front lower retaining body, 27. Rear lower retaining groove, 28. Front lower retaining groove, 29. Threaded hole of the lower cover of the nozzle, 30. 31. Rear upper snap body, 32. Front upper snap body, 33. Rear upper snap groove, 34. Front upper snap groove, 35. Lower cover snap, 36. Upper cover snap groove, 37. Insulation cavity, 38. Premixed air duct. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 and Figure 2 In the embodiments described above, a nozzle structure for a hair straightener includes:

[0035] The air duct body 1 has a straight geometric center line. The air duct body 1 is provided with an air duct inlet 2 and an air duct outlet 3. The air duct inlet 2 and the air duct outlet 3 are located at the port ends of the air duct body 1 at both ends. The air duct inlet 2 and the air duct outlet 3 are both located on the geometric center line of the air duct body 1.

[0036] An airflow regulating component is installed inside the air duct body 1. The airflow regulating component includes a flow divider cone 4 and a guide rib group. The guide rib group divides the interior of the air duct body 1 into several air distribution channels 5 with equal areas. The flow divider cone 4 is installed on the side of the guide rib group near the air duct inlet 2. The top of the flow divider cone 4 faces the air duct outlet 3. The width of the bottom circle of the flow divider cone 4 is smaller than the width of the air duct inlet 2. The central axis of the flow divider cone 4 coincides with the geometric center line of the air duct body 1.

[0037] The comb tooth component is located at the air outlet 3 of the air duct. The comb tooth component includes a base 6, which is detachably connected to the air outlet 3 of the air duct. Several sets of comb teeth are provided on the base 6, and the comb teeth and the base 6 are integrated into one design.

[0038] The guide rib assembly consists of a central column 7 and several guide rib plates 8. The central column 7 is located on the geometric center line of the duct body 1. The guide rib plates 8 are fixed in a ring between the outer side wall of the central column 7 and the inner side wall of the duct body 1. The several guide rib plates 8 evenly divide the interior of the duct body 1 into several air distribution channels 5 of equal area. The tip of the flow divider cone 4 is provided with a flow divider cone threaded hole 9. The central column 7 is provided with a central column threaded hole 10 that matches the flow divider cone threaded hole 9. The side wall of the flow divider cone 4 is provided with several limiting grooves 11 that correspond one-to-one with the guide rib plates 8. The guide rib plates 8 are provided with inclined edges 12 that are adapted to the limiting grooves 11. The central column 7, the guide rib plates 8, and the duct body 1 are integrated injection molded designs.

[0039] like Figure 3 , Figure 4 and Figure 5 As shown, the distance between the side of the guide rib plate 8 near the air inlet 2 and the end face of the air inlet 2 is 5~10mm, and the distance between the side of the guide rib plate 8 near the air outlet 3 and the end face of the air outlet 3 is 5~10mm.

[0040] The side of the guide rib plate 8 near the air inlet 2 of the air duct adopts a rounded transition design.

[0041] A magnetic ring 13 and a positioning rod 14 are installed at the air inlet 2 of the air duct. The magnetic ring 13 is embedded and fixed to the end face of the air duct body 1, and the positioning rod 14 is fixed to the bottom circle of the diversion cone 4 and the two are fixed by ultrasonic welding. A sealing ring 15 is sleeved and fixed on the positioning rod 14. The magnetic attraction scheme adopts the method of injection molding neodymium iron boron magnets. There is a gap between the positioning rod 14 and the fan body. One end of the positioning rod 14 is fixed to the bottom circle of the diversion cone 4, and the other end of the positioning rod 14 is provided with an arc surface that matches the arc surface of the fan body for positioning. The positioning rod 14 has a groove for fitting the sealing ring 15. When the positioning rod 14 is inserted into the installation position of the fan body, the sealing ring 15 is compressed and sealed. The magnetic ring 13 on the air duct body 1 and the iron ring at the air outlet of the fan body complete the magnetic attraction assembly. The assembly structure on the fan body is an adaptive design to this application and belongs to conventional technology, so it will not be specifically shown or described.

[0042] An annular groove 16 is provided at the air outlet 3 of the air duct. The annular groove 16 is placed on the end face of the air duct body 1 and located outside the air outlet 3 of the air duct. A convex rib 17 matching the annular groove 16 is provided on the base 6. An air duct body threaded hole 18 is provided on the air duct body 1, and a base threaded hole 19 matching the air duct body threaded hole 18 is provided on the base 6.

[0043] Each comb tooth consists of several tooth needles 20 and several tooth needles 21. Both tooth needles 20 and tooth needles 21 are integrally injection molded with the base 6. The length of tooth needle 20 is greater than the length of tooth needle 21. Tooth needles 20 and tooth needles 21 are arranged alternately.

[0044] The base 6 has several ventilation holes 22. The air distribution channels 5 and the ventilation holes 22 are arranged opposite to each other, and the number of ventilation holes 22 corresponding to each air distribution channel 5 is the same. The ratio between the total air outlet area at the ventilation holes 22 and the air inlet area at the air inlet 2 of the air duct is 1 to 1. The total air outlet area of ​​all ventilation holes 22 is 500 to 650 mm².

[0045] like Figure 4 and Figure 6As shown, the outer side of the air duct body 1 is provided with a lower nozzle cover 23 and an upper nozzle cover 24. The rear and front ends of the lower nozzle cover 23 are respectively provided with a lower rear fastener 25 and a lower front fastener 26. The surface of the air duct body 1 is provided with a lower rear fastener groove 27 that matches the lower rear fastener 25. The lower rear fastener groove 27 is located at the end of the air duct body 1 away from the comb teeth. The surface of the base 6 is provided with a lower front fastener groove 28 that matches the lower front fastener 26. The lower nozzle cover 23 is also provided with a lower nozzle cover threaded hole 29. The air duct body 1 is provided with a threaded hole for the lower nozzle cover. The air duct body threaded hole 30 matches hole 29. The rear and front ends of the nozzle cover 24 are respectively provided with a rear upper buckle 31 and a front upper buckle 32. The surface of the air duct body 1 is provided with a rear upper buckle groove 33 that matches the rear upper buckle 31. The rear upper buckle groove 33 is located at the end of the air duct body 1 away from the comb teeth. The surface of the base 6 is provided with a front upper buckle groove 34 that matches the front upper buckle 32. The nozzle lower cover 23 is also provided with a lower cover buckle 35. The nozzle upper cover 24 is provided with an upper cover groove 36 that matches the lower cover buckle 35.

[0046] A heat insulation cavity 37 is provided between the inner surface of the lower cover 23 of the air nozzle and the outer surface of the air duct body 1, and between the inner surface of the upper cover 24 of the air nozzle and the outer surface of the air duct body 1.

[0047] Assembly process: Align the limiting groove 11 on the diverter cone 4 with the inclined edge 12 on the guide rib plate 8 for clamping and fixing, then screw the connecting screw into the threaded hole 9 of the diverter cone and the threaded hole 10 of the center column for fixing, thus completing the installation and fixing of the diverter cone 4; Insert the convex rib 17 on the base 6 into the annular groove 16 at the air outlet 3 of the air duct, then screw the connecting screw into the threaded hole 19 of the base and the threaded hole 18 of the air duct body for fixing, thus completing the installation and fixing of the comb tooth component; The rear end of the nozzle lower cover 23 is fastened to the air duct body 1 through the cooperation of the rear lower buckle 25 and the rear lower buckle groove 27, while the front end of the nozzle lower cover 23... The lower nozzle cover 23 is fastened to the base 6 by the cooperation of the lower front fastener 26 and the lower front fastener groove 27. Then, the connecting screw is screwed into the threaded hole 29 of the lower nozzle cover and the threaded hole 30 of the air duct body for fixation, thereby completing the installation and fixation of the lower nozzle cover 23. The rear end of the upper nozzle cover 24 is fastened to the air duct body 1 by the cooperation of the upper rear fastener 31 and the upper rear fastener groove 33. At the same time, the front end of the upper nozzle cover 24 is fastened to the base 6 by the cooperation of the upper front fastener 32 and the upper front fastener groove 34. Meanwhile, the upper cover slot 36 of the upper nozzle cover 24 and the lower cover buckle 35 on the lower nozzle cover 23 are engaged with each other, thereby completing the installation and fixation of the upper nozzle cover 24.

[0048] Working principle: High-speed airflow enters the interior of the air duct body 1 through the air inlet 2. It first passes through the combined section of the air inlet cone 4 and the guide rib group under the guidance of the surface of the air inlet cone 4 and the inner surface of the air duct body 1. Then it passes through the complete guide rib group area. The design of the air duct body 5, which is evenly divided into four air distribution channels 5 with equal area by the guide rib plate 8, makes the airflow flow more evenly in the air duct body 1, makes the air outlet 3 of the air duct more uniform, and the air volume of each air distribution channel 5 can be kept basically consistent. Finally, it is blown out evenly through the ventilation holes 22 on the comb tooth piece.

[0049] By employing a linear design for the air duct body 1, with the air inlet 2 and outlet 3 located at opposite ends, the airflow distance within the air duct body 1 is minimized. This significantly reduces airflow loss within the air duct body 1, and the shorter air duct design enhances the hair conditioning effects of negative ions and plasma. Furthermore, the shorter air duct path allows for better force distribution and easier use of the straightener after installation. The air duct path can be kept within 40mm.

[0050] By leaving 5-10mm of space redundancy at the air inlet 2 and air outlet 3 of the air duct, a premixed air duct 38 is formed between the air inlet 2 and the air distribution channel 5, and a premixed air duct 38 is also formed between the air distribution channel 5 and the air outlet 3. This allows the high-speed airflow to be fully premixed and the air outlet 3 to be more evenly distributed in all directions.

[0051] The height difference between the first and second toothed needles (20 and 21) makes it easier to insert them into the hair strand and to make the hair more voluminous. After the first toothed needle (20) has entered the hair strand to a certain distance, the second toothed needle (21) enters the hair strand. This design makes it easier to insert into various hair lengths and textures, and also makes it easier to pull the hair while combing, reducing resistance.

[0052] Since the temperature of the main body of the air duct 1 can reach about 80° when high-speed hot air passes through it, a heat radiation air isolation scheme is adopted between the upper cover 24 of the air nozzle, the lower cover 23 of the air nozzle and the main body of the air duct 1. The minimum number of ribs is used for limiting the air duct. A large-distance heat insulation cavity 37 is used as an isolation space between the upper cover 24 of the air nozzle, the lower cover 23 of the air nozzle and the main body of the air duct 1. The whole is air isolated to prevent and slow down the temperature rise of the surface of the main body of the air duct after being affected by the high-temperature air flow to the upper cover 24 of the air nozzle and the lower cover 23 of the air nozzle. This greatly reduces the temperature of the upper cover 24 of the air nozzle and the lower cover 23 of the air nozzle, so that the surface temperature can be controlled below 55°C±5°C during use.

Claims

1. A nozzle structure for a hair straightener, characterized in that, include: The air duct body (1) has a straight geometric center line. The air duct body (1) is provided with an air duct inlet (2) and an air duct outlet (3). The air duct inlet (2) and the air duct outlet (3) are located at the port portions at both ends of the air duct body (1). The air duct inlet (2) and the air duct outlet (3) are both located on the geometric center line of the air duct body (1). An airflow regulating component is disposed inside the air duct body (1). The airflow regulating component includes a flow divider cone (4) and a flow guide rib group. The flow guide rib group divides the interior of the air duct body (1) into several air distribution channels (5) with equal areas. The flow divider cone (4) is disposed on the side of the flow guide rib group near the air duct inlet (2). The top tip of the flow divider cone (4) faces the air duct outlet (3). The width of the bottom circle of the flow divider cone (4) is smaller than the width of the air duct inlet (2). The central axis of the flow divider cone (4) coincides with the geometric center line of the air duct body (1). A comb tooth component is provided at the air outlet (3) of the air duct. The comb tooth component includes a base (6). The base (6) and the air outlet (3) of the air duct are detachably connected. Several sets of comb teeth are provided on the base (6). The comb teeth and the base (6) are integrated into one design.

2. The nozzle structure for a hair straightener according to claim 1, characterized in that, The guide rib assembly consists of a central column (7) and several guide rib plates (8). The central column (7) is located on the geometric center line of the air duct body (1). The guide rib plates (8) are fixed in a ring between the outer side wall of the central column (7) and the inner side wall of the air duct body (1). The several guide rib plates (8) evenly divide the interior of the air duct body (1) into several air distribution channels (5) with equal areas. The top of the flow divider cone (4) is provided with a flow divider cone threaded hole (9). The central column (7) is provided with a central column threaded hole (10) that matches the flow divider cone threaded hole (9). The side wall of the flow divider cone (4) is provided with several limiting grooves (11) that correspond one-to-one with the guide rib plates (8). The guide rib plates (8) are provided with inclined edges (12) that are adapted to the limiting grooves (11).

3. The nozzle structure for a hair straightener according to claim 2, characterized in that, The distance between the side of the guide rib (8) near the air inlet (2) and the end face of the air inlet (2) is 5~10mm, and the distance between the side of the guide rib (8) near the air outlet (3) and the end face of the air outlet (3) is 5~10mm.

4. The nozzle structure for a hair straightener according to claim 2, characterized in that, The side of the guide rib (8) near the air inlet (2) of the air duct adopts a rounded transition design.

5. The nozzle structure for a hair straightener according to any one of claims 1-4, characterized in that, A magnetic ring (13) and a positioning rod (14) are provided at the air inlet (2) of the air duct. The magnetic ring (13) is embedded and fixed on the end face of the air duct body (1). The positioning rod (14) is fixed to the bottom circle of the diversion cone (4) and the two are fixed by ultrasonic welding. A sealing ring (15) is sleeved and fixed on the positioning rod (14).

6. The nozzle structure for a hair straightener according to any one of claims 1-4, characterized in that, An annular groove (16) is provided at the air outlet (3) of the air duct. The annular groove (16) is placed on the end face of the air duct body (1) and located outside the air outlet (3). A convex rib (17) matching the annular groove (16) is provided on the base (6). An air duct body threaded hole (18) is provided on the air duct body (1). A base threaded hole (19) matching the air duct body threaded hole (18) is provided on the base (6).

7. The nozzle structure for a hair straightener according to claim 6, characterized in that, Each comb tooth consists of several tooth needles (20) and several tooth needles (21). Both tooth needles (20) and tooth needles (21) are integrally injection molded with the base (6). The length of tooth needle (20) is greater than the length of tooth needle (21). Tooth needles (20) and tooth needles (21) are arranged alternately.

8. The nozzle structure for a hair straightener according to claim 7, characterized in that, The base (6) is provided with a number of ventilation holes (22). The air distribution channel (5) and the ventilation holes (22) are arranged opposite to each other and the number of ventilation holes (22) corresponding to each air distribution channel (5) is the same. The ratio between the total air outlet area at the ventilation hole (22) and the air inlet area at the air inlet (2) of the air duct is 1:0.9~1:1.

1.

9. The nozzle structure for a hair straightener according to any one of claims 1-4, characterized in that, The outer side of the air duct body (1) is provided with a lower nozzle cover (23) and an upper nozzle cover (24). The rear and front ends of the lower nozzle cover (23) are respectively provided with a lower rear fastener (25) and a lower front fastener (26). The surface of the air duct body (1) is provided with a lower rear fastener groove (27) that matches the lower rear fastener (25). The lower rear fastener groove (27) is located at the end of the air duct body (1) away from the comb teeth. The surface of the base (6) is provided with a lower front fastener groove (28) that matches the lower front fastener (26). The lower nozzle cover (23) is also provided with a lower nozzle cover threaded hole (29). The air duct body (1) is provided with a threaded hole that matches the lower nozzle cover. (29) Matching air duct body threaded hole two (30), the rear port and the front port of the air nozzle cover (24) are respectively provided with rear upper buckle (31) and front upper buckle (32), the surface of the air duct body (1) is provided with rear upper buckle groove (33) matching the rear upper buckle (31), the rear upper buckle groove (33) is located at the end of the air duct body (1) away from the comb tooth, the surface of the base (6) is provided with front upper buckle groove (34) matching the front upper buckle (32), the lower cover of the air nozzle (23) is also provided with lower cover buckle (35), the upper cover of the air nozzle (24) is provided with upper cover buckle groove (36) matching the lower cover buckle (35).

10. The nozzle structure for a hair straightener according to claim 9, characterized in that, A heat insulation cavity (37) is provided between the inner surface of the lower cover (23) of the air nozzle and the outer surface of the air duct body (1), and between the inner surface of the upper cover (24) of the air nozzle and the outer surface of the air duct body (1).

Images