Detachable two-sided comb

By designing a detachable two-sided comb, the problem of single function of traditional combs is solved, and multifunctional use and longer service life is achieved.

CN222548738UActive Publication Date: 2025-03-04GUANGZHOU ESHINE STAR HAIR BEAUTY PROD CO LTD
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Patent Information

Application Number
CN202420911457.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-28
Publication Date
2025-03-04
Estimated Expiration
2034-04-28

AI Technical Summary

Technical Problem

Traditional combs have a single function and cannot meet the diverse needs of hair care and shape after washing, and are not practical enough.

Method used

A detachable two-sided comb is designed, including a main comb assembly and a detachable secondary comb assembly. Both can be assembled into a double-sided comb for use or can be detached and used separately, enriching the use scenarios.

Benefits of technology

Through the detachable design, the functions of rotating shape, straightening and straightening are realized. At the same time, the comb teeth can be replaced, extend the service life and improve product practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The detachable two-sided comb comprises the main comb assembly and the auxiliary comb assembly detachably arranged on the back face of the main comb assembly, the main comb assembly and the auxiliary comb assembly can be assembled into the two-sided comb convenient to rotate, shape and straighten hair for use, the main comb assembly and the auxiliary comb assembly can also be disassembled to be independently used as a hair blowing and shaping comb, the use scene is enriched, and the practicability is high. The product practicability is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of hair combs, in particular to a detachable two-sided comb. Background Art

[0002] A comb is a common daily necessity, often used for combing and styling hair. Traditional combs have a single function. When a user needs to take care of and style their hair after washing their hair, they need to use multiple combs with different functions in turn, which is not practical enough. Utility Model Content

[0003] The utility model aims to solve the technical problems that existing hair combs have single functions and are not practical enough. The present application provides a detachable two-sided comb, wherein a main comb component and a secondary comb component can be assembled into a double-sided comb for convenient rotation, styling, and straightening of hair, and the two can also be disassembled and used separately as a hair-drying styling comb, thereby enriching the usage scenarios and improving the practicality of the product.

[0004] A detachable two-sided comb comprises a main comb assembly and a secondary comb assembly detachably arranged on the back of the main comb assembly. The secondary comb assembly and the main comb assembly can be assembled into a two-sided comb for use or separated for independent use.

[0005] As described above, the detachable two-sided comb, the main comb assembly comprises a comb handle and a main comb skin detachably arranged on one side of the comb handle.

[0006] As described above, the detachable two-sided comb, the auxiliary comb assembly comprises an auxiliary comb seat detachably arranged on the other side of the comb handle, and an auxiliary comb skin detachably arranged on the auxiliary comb seat.

[0007] As described above, the detachable two-sided comb, the main comb skin and the auxiliary comb skin can be installed on the comb handle and the auxiliary comb seat respectively and interchangeably.

[0008] As described above, in the detachable two-sided comb, a plurality of main comb teeth are arranged on the main comb skin, and the plurality of main comb teeth are arranged in an arc shape in the transverse direction.

[0009] As described above, in the detachable two-sided comb, the auxiliary comb skin is arranged opposite to the main comb skin, and a plurality of auxiliary comb teeth are arranged thereon, and the plurality of auxiliary comb teeth are arranged in an arc shape in the transverse direction.

[0010] As described above, the detachable two-sided comb has a front slide groove arranged vertically on the front side of the comb handle, and the rear side of the main comb skin is slidably arranged in the front slide groove.

[0011] As described above, the detachable two-sided comb has a rear slide groove arranged vertically at the rear side of the auxiliary comb seat, and the front side of the auxiliary comb skin is slidably arranged in the rear slide groove.

[0012] As described above, the detachable two-sided comb has a main slide groove arranged vertically at the front side of the auxiliary comb seat, and the rear side of the comb handle is slidably arranged in the main slide groove.

[0013] As described above, the detachable two-sided comb, the upper side of the front slide groove is provided with an opening allowing the main comb skin to be inserted, and the groove walls on both opposite sides are provided with front vertical guide strips protruding toward the middle, and the two opposite side walls of the main comb skin are provided with two front vertical guide grooves that match and nest the two front vertical guide strips.

[0014] As described above, the detachable two-sided comb, the upper side of the rear slide groove is provided with an opening allowing the auxiliary comb skin to be inserted, and the groove walls on both opposite sides are provided with rear vertical guide strips protruding toward the middle, and the side walls on both opposite sides of the auxiliary comb skin are provided with two rear vertical guide grooves that match and nest the two rear vertical guide strips.

[0015] As described above, the detachable two-sided comb, the front vertical guide bar is provided with a plurality of front clamping protrusions extending toward the middle for clamping the front vertical guide groove; the rear vertical guide bar is provided with a plurality of rear clamping protrusions extending toward the middle for clamping the rear vertical guide groove.

[0016] As described above, the detachable two-sided comb has vertical guide edges protruding outward on both sides of the comb handle; the lower side of the main slide groove is provided with an opening allowing the comb handle to be inserted, and the groove walls on the opposite sides are provided with locking hooks for locking the vertical guide edges.

[0017] As described above, the detachable two-sided comb has a locking mechanism between the auxiliary comb seat and the comb handle to form a detachable locking connection between the two.

[0018] As described above, the detachable two-sided comb, the locking mechanism includes a locking hole provided on the comb handle, and a buckle provided on the auxiliary comb seat, the buckle can be locked on the locking hole when the auxiliary comb seat is installed on the comb handle, and the buckle can be detached from the locking hole under the action of external force.

[0019] As described above, the detachable two-sided comb has a main large hole and a main small hole spaced apart on the main comb skin, main comb teeth are inserted into the main large hole and the main small hole respectively, the main large hole has a larger aperture than the outer diameter of the main comb teeth, and the main small hole has a diameter matched with the outer diameter of the main comb teeth.

[0020] As described above, the detachable two-sided comb has a secondary large hole and a secondary small hole spaced apart on the secondary comb skin, and secondary comb teeth are respectively inserted into the secondary large hole and the secondary small hole, the aperture of the secondary large hole is larger than the outer diameter of the secondary comb teeth, and the aperture of the secondary small hole is matched with the outer diameter of the secondary comb teeth.

[0021] Implementing the embodiments of the utility model has the following beneficial effects:

[0022] 1. The present application provides a detachable two-sided comb, comprising a main comb assembly and a secondary comb assembly detachably arranged on the back of the main comb assembly. The secondary comb assembly and the main comb assembly can be assembled into a two-sided comb for use or separated for independent use. The present application can assemble the main comb assembly and the secondary comb assembly into a double-sided comb for convenient rotation styling and straightening of hair, and can also disassemble the two and use them separately as a hair-drying styling comb, thereby enriching the use scenarios and improving the practicality of the product;

[0023] 2. In the embodiment of the present application, the main comb skin and the auxiliary comb skin can be installed interchangeably. When the double-sided comb is not used frequently, the main comb skin on the front side will be damaged first. At this time, the auxiliary comb skin on the back side can be replaced and installed on the comb handle on the front side, so that it can continue to be used for a longer time, thereby improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic structural diagram of a detachable two-sided comb after the auxiliary comb component and the main comb component are assembled;

[0026] Figure 2 It is a schematic structural diagram of a detachable two-sided comb of the present application after the auxiliary comb component and the main comb component are separated;

[0027] Figure 3 It is a side view of a detachable two-sided comb of the present application;

[0028] Figure 4 yes Figure 3 Schematic diagram of the cross section along the AA direction;

[0029] Figure 5 It is an exploded schematic diagram of a detachable two-sided comb of the present application;

[0030] Figure 6 This is a schematic diagram of an exploded view of a detachable two-sided comb of the present application from another perspective. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-6 As shown, the embodiment of the present application provides a detachable two-sided comb, including a main comb assembly 1 and a sub-comb assembly 2 detachably arranged on the back of the main comb assembly 1, the sub-comb assembly 2 and the main comb assembly 1 can be assembled into a two-sided comb for use or separated for independent use. In the present application, the main comb assembly and the sub-comb assembly can be assembled into a double-sided comb for convenient rotation styling and straightening of hair, and the two can be disassembled and used separately as a blow-drying styling comb, which enriches the usage scenarios and improves the practicality of the product.

[0033] Furthermore, the main comb assembly 1 includes a comb handle 11 and a main comb skin 12 detachably provided on one side of the comb handle 11. The main comb skin 12 and the comb handle 11 of the present application are detachably connected, which is convenient for independent removal to clean knots and convenient for replacement. In the specific embodiment of the present application, the comb handle 11 is a common grip-type comb handle, which is long and strip-shaped as a whole, including a gripping end on the lower side and a combing panel on the upper side. When the main comb assembly 1 and the auxiliary comb assembly 2 are assembled together to form a double-sided comb, the gripping end on the lower side of the comb handle can be held by hand to comb the hair, so as to facilitate rotation and shaping and straighten the hair. When the comb assembly 1 and the auxiliary comb assembly 2 are separated, the main comb assembly 1 is also held by hand at the gripping end on the lower side of the comb handle to comb the hair, so as to blow-dry and loosen the hair.

[0034] Furthermore, the auxiliary comb assembly 2 includes an auxiliary comb seat 21 detachably arranged on the other side of the comb handle 11, and an auxiliary comb skin 22 detachably arranged on the auxiliary comb seat 21. The auxiliary comb skin 22 and the auxiliary comb seat 21 of the present application are detachably connected, which is convenient for independent removal to clean knots and convenient for replacement. The auxiliary comb assembly 2 is detachably connected to the comb handle 11 on the main comb assembly 1 through the auxiliary comb seat 21, so that the auxiliary comb assembly 2 can be separated from the main comb assembly 1, so that the two can be assembled into a double-sided comb for use, and can be removed separately for use as a styling comb. In the specific embodiment of the present application, the auxiliary comb seat 21 is square and matches the comb panel on the upper side of the comb handle, so that the two can be assembled to form a round comb commonly seen in the field. When the comb assembly 1 and the auxiliary comb assembly 2 are separated, the auxiliary comb seat 21 on the auxiliary comb assembly 2 can be held independently in the palm of the hand to be used as a tool for washing and smoothing hair.

[0035] As a preferred embodiment, the main comb skin 12 and the auxiliary comb skin 22 can be interchangeably installed on the comb handle 11 and the auxiliary comb seat 21 respectively. As one of the embodiments, the main comb skin 12 and the auxiliary comb skin 22 have the same structure, and the comb teeth on both are the same and replaceable. When the double-sided comb is not often used, the front main comb skin 12 will be damaged first. At this time, the auxiliary comb skin 22 on the back can be replaced and installed on the front comb handle 21, so that it can continue to be used for a longer time; as one of the embodiments, the main comb skin 12 and the auxiliary comb skin 22 have the same structure, and the comb teeth on both are of different thickness or length specifications. According to different usage scenarios, the comb skin of the required comb teeth can be replaced on the comb handle or the auxiliary comb seat to increase the applicability of the product.

[0036] Furthermore, the main comb skin 12 is provided with a plurality of main comb teeth 13, and the plurality of main comb teeth 13 are arranged in an arc shape in the transverse direction; the auxiliary comb skin 22 is arranged opposite to the main comb skin 12, and a plurality of auxiliary comb teeth 23 are arranged thereon, and the plurality of auxiliary comb teeth 23 are arranged in an arc shape in the transverse direction, such as Figure 4 As shown, the auxiliary comb assembly 2 of the present application is assembled onto the main comb assembly 1 to form a double-sided comb whose comb teeth are arranged in a circle. At this time, the double-sided comb is equivalent to a round comb, which is convenient for rotating styling and straightening hair.

[0037] As a preferred embodiment, a vertically arranged front slide groove 111 is provided on the front side of the comb handle 11, and the rear side of the main comb skin 12 can be slidably arranged in the front slide groove 111; in the specific embodiment of the present application, the main comb skin 12 is slidably arranged in the front slide groove 111 on the front side of the comb handle 11, which is convenient for removing the main comb skin 12 for cleaning or replacement.

[0038] As a preferred embodiment of the present application but not a limitation, the upper side of the front slide groove 111 is an opening setting for allowing the auxiliary comb skin 22 to be inserted, and the groove walls on the opposite sides are provided with front vertical guide strips 112 protruding toward the middle, and the two opposite side walls of the main comb skin 12 are provided with two front vertical guide grooves 121 that match and nest the two front vertical guide strips 112; the front vertical guide strips 112 and the front vertical guide grooves 121 are nested and matched, and the front vertical guide strips 112 can serve as a guide, which is convenient for vertically assembling the main comb skin onto the comb handle. At the same time, the front vertical guide strips can serve as a limiter to provide the main comb skin with lateral restraint force, so that the assembly of the two is more stable.

[0039] More preferably, reference Figure 6 The front vertical guide bar 112 is provided with a plurality of front clamping protrusions 113 extending toward the middle for clamping the front vertical guide groove 121; this design can increase the tightness of the connection between the main comb skin and the comb handle, and facilitate the stable use of the main comb skin. In the specific embodiment of the present application, a plurality of front clamping protrusions 113 are provided, which are arranged in a herringbone shape on both sides of the front vertical guide bar 112 facing each other, so as to further improve the clamping degree.

[0040] As a preferred embodiment, a vertically arranged rear slide groove 211 is provided on the rear side of the auxiliary comb seat 21, and the front side of the auxiliary comb skin 22 can be slidably arranged in the rear slide groove 211; in the specific embodiment of the present application, the auxiliary comb skin 22 is slidably arranged in the rear slide groove 211 on the rear side of the auxiliary comb seat 21, so as to facilitate the removal of the auxiliary comb skin 22 for cleaning or replacement.

[0041] As a preferred embodiment of the present application but not a limitation, the upper side of the rear slide groove 211 is an opening setting for allowing the auxiliary comb skin 22 to be inserted, and the groove walls on both sides opposite to each other are provided with rear vertical guide bars 212 protruding toward the middle, and the two opposite side walls of the auxiliary comb skin 22 are provided with two rear vertical guide grooves 221 matching and nesting the two rear vertical guide bars 212. The rear vertical guide bar 212 and the rear vertical guide groove 221 are nested, and the rear vertical guide bar 212 can play a guiding role, which is convenient for assembling the auxiliary comb skin to the auxiliary comb seat in the vertical direction. At the same time, the front vertical guide bar can be used as a limiter to provide the auxiliary comb skin with a horizontal restraining force, so that the assembly of the two is more stable.

[0042] More preferably, reference Figure 5 The rear vertical guide bar 212 is provided with a plurality of rear clamping protrusions 213 extending toward the middle for clamping the rear vertical guide groove 221; this design can increase the tightness of the connection between the auxiliary comb skin and the auxiliary comb seat, which is convenient for the stable use of the auxiliary comb skin. In the specific embodiment of the present application, multiple groups of rear clamping protrusions 213 are provided, which are arranged in a herringbone shape on both sides of the rear vertical guide bar 212 facing each other, so as to further improve the clamping degree.

[0043] As a preferred embodiment, a vertically arranged main slide groove 214 is provided on the front side of the auxiliary comb seat 21, and the rear side of the comb handle 11 can be slidably arranged in the main slide groove 214. In the specific embodiment of the present application, the rear side of the comb handle 11 is slidably arranged in the main slide groove 214 on the front side of the auxiliary comb seat 21, so as to facilitate the separation and assembly of the auxiliary comb assembly 2 and the main comb assembly 1.

[0044] As a preferred embodiment of the present application but not a limitation, both side edges of the comb handle 11 are provided with vertical guide edges 114 protruding outward; the lower side of the main slide groove 214 is an opening allowing the comb handle 11 to be inserted, and the groove walls on both sides opposite to each other are provided with snap hook feet 215 for snapping the vertical guide edges 114. In the specific embodiment of the present application, the auxiliary comb seat 21 is sleeved on the outer side of the comb handle, and a firm connection is achieved by snapping the snap hook feet 215 with the vertical guide edges 114.

[0045] As a preferred embodiment, a locking mechanism is provided between the auxiliary comb seat 21 and the comb handle 11 to form a detachable locking connection between the two; this design allows the auxiliary comb seat 21 to be stably connected to the comb handle, and facilitates the removal of the auxiliary comb seat 21 from the comb handle for use as a facial comb.

[0046] As a preferred embodiment of the present application but not a limitation, the locking mechanism includes a locking hole 115 provided on the comb handle 11, and a fastener 216 provided on the auxiliary comb seat 21. The fastener 216 can be locked on the locking hole 115 when the auxiliary comb seat 21 is installed on the comb handle 11, and the fastener 216 can be separated from the locking hole 115 under the action of external force. In a specific embodiment of the present application, when disassembling, the back comb leather is removed from the auxiliary comb seat 21, and the fastener 216 is tilted back to move the fastener 216 out of the locking hole 115, thereby releasing the locking relationship between the two, and the auxiliary comb assembly can be taken out upwards, so that the two are separated to form two independent products.

[0047] As a preferred embodiment, the main comb skin 12 is provided with a main large hole 122 and a main small hole 123 at intervals, and the main comb teeth 13 are respectively inserted into the main large hole 122 and the main small hole 123, the aperture of the main large hole 122 is larger than the outer diameter of the main comb teeth 13, and the aperture of the main small hole 123 is adapted to the outer diameter of the main comb teeth 13; the large hole can be used for ventilation, and the small hole is used to fix the comb teeth. In addition, there is a cavity in the front comb skin for storing fluids such as essential oils. At this time, the large hole can be used as an oil filter to facilitate hair care.

[0048] As a preferred embodiment, the auxiliary comb skin 22 is provided with auxiliary large holes 222 and auxiliary small holes 223 at intervals, and auxiliary comb teeth 23 are inserted into the auxiliary large holes 222 and the auxiliary small holes 223 respectively, and the aperture of the auxiliary large hole 222 is larger than the outer diameter of the auxiliary comb teeth 23, and the aperture of the auxiliary small hole 223 is adapted to the outer diameter of the auxiliary comb teeth 23. The large hole can be used for ventilation, and the small hole is used to fix the comb teeth. In addition, there is a cavity in the back comb skin, which can store fluids such as essential oils. At this time, the large hole can be used for oiling, which is convenient for hair care.

[0049] When assembling the present application, the rear side of the main comb skin 12 is installed into the front slide groove 111 on the front side of the comb handle 11, and the front side of the auxiliary comb skin 22 is installed into the rear slide groove 211 on the rear side of the auxiliary comb seat 21, and then the rear side of the comb handle 11 is inserted into the main slide groove 214 on the front side of the auxiliary comb seat 21. When it reaches the limit position, the buckle 216 on the auxiliary comb seat 21 is buckled and popped out to support the buckle hole 115 on the comb handle 11, and the two are clamped, so that the main comb assembly 1 and the auxiliary comb assembly 2 are assembled into a double-sided comb.

[0050] When disassembling the present application, the buckle 216 on the auxiliary comb seat 21 is tilted up, and the buckle 216 is disengaged from the snap-fit ​​hole 115, and the auxiliary comb assembly 2 can be taken out upwards, and the main comb assembly 1 and the auxiliary comb assembly 2 are separated to form two independent products. The main comb skin 12 can be independently removed from the comb handle 11 to clean the entangled broken hair, and the auxiliary comb skin 22 can also be independently removed from the auxiliary comb seat 21 to clean the entangled broken hair.

[0051] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A detachable two-sided comb, characterized in that: The utility model comprises a main comb assembly (1) and a secondary comb assembly (2) detachably arranged on the back of the main comb assembly (1); the secondary comb assembly (2) and the main comb assembly (1) can be assembled into a double-sided comb for use or separated for independent use.

2. The detachable two-sided comb according to claim 1, characterized in that: The main comb assembly (1) comprises a comb handle (11) and a main comb skin (12) detachably arranged on one side of the comb handle (11); The auxiliary comb assembly (2) comprises an auxiliary comb seat (21) detachably arranged on the other side of the comb handle (11), and an auxiliary comb skin (22) detachably arranged on the auxiliary comb seat (21).

3. The detachable two-sided comb according to claim 2, characterized in that: The main comb skin (12) and the auxiliary comb skin (22) can be installed on the comb handle (11) and the auxiliary comb seat (21) respectively and interchangeably.

4. The detachable two-sided comb according to claim 2, characterized in that: A plurality of main comb teeth (13) are arranged on the main comb skin (12), and the plurality of main comb teeth (13) are arranged in an arc shape in the transverse direction; The auxiliary comb skin (22) is arranged opposite to the main comb skin (12), and a plurality of auxiliary comb teeth (23) are arranged on it. The plurality of auxiliary comb teeth (23) are arranged in an arc shape in the transverse direction.

5. The detachable two-sided comb according to claim 2, characterized in that: The front side of the comb handle (11) is provided with a vertically arranged front slide groove (111), and the rear side of the main comb skin (12) is slidably arranged in the front slide groove (111); and / or A vertically arranged rear slide groove (211) is arranged at the rear side of the auxiliary comb seat (21), and the front side of the auxiliary comb skin (22) is slidably arranged in the rear slide groove (211); and / or A main sliding groove (214) arranged vertically is provided on the front side of the auxiliary comb seat (21), and the rear side of the comb handle (11) is slidably arranged in the main sliding groove (214).

6. The detachable two-sided comb according to claim 5, characterized in that: The upper side of the front slide groove (111) is provided with an opening for allowing the main comb skin (12) to be inserted, and the groove walls on both sides opposite to each other are provided with front vertical guide strips (112) protruding toward the middle, and the two side walls opposite to each other of the main comb skin (12) are provided with two front vertical guide grooves (121) matching and nesting the two front vertical guide strips (112); The upper side of the rear slide groove (211) is provided with an opening for allowing the auxiliary comb skin (22) to be inserted, and the groove walls on both sides opposite to each other are provided with rear vertical guide bars (212) protruding toward the middle, and the walls on both sides opposite to each other of the auxiliary comb skin (22) are provided with two rear vertical guide grooves (221) matching and nesting the two rear vertical guide bars (212).

7. The detachable two-sided comb according to claim 6, characterized in that: The front vertical guide bar (112) is provided with a plurality of front clamping protrusions (113) extending toward the middle and used for clamping the front vertical guide groove (121); The rear vertical guide bar (212) is provided with a plurality of rear clamping protrusions (213) extending toward the middle and used for clamping the rear vertical guide groove (221).

8. The detachable two-sided comb according to claim 5, characterized in that: Both sides of the comb handle (11) are provided with vertical guide edges (114) protruding outwards; The lower side of the main sliding groove (214) is provided with an opening for allowing the comb handle (11) to be inserted, and the groove walls on two opposite sides are provided with locking hook feet (215) for locking the vertical guide edge (114).

9. The detachable two-sided comb according to claim 8, characterized in that: A locking mechanism is provided between the auxiliary comb seat (21) and the comb handle (11) to enable a detachable locking connection between the two; The locking mechanism comprises a locking hole (115) provided on the comb handle (11), and a locking member (216) provided on the auxiliary comb seat (21); the locking member (216) can be locked on the locking hole (115) when the auxiliary comb seat (21) is installed on the comb handle (11), and the locking member (216) can be separated from the locking hole (115) under the action of an external force.

10. The detachable two-sided comb according to claim 2, characterized in that: The main comb skin (12) is provided with a main large hole (122) and a main small hole (123) at intervals, and the main comb teeth (13) are respectively inserted into the main large hole (122) and the main small hole (123), the aperture of the main large hole (122) is larger than the outer diameter of the main comb teeth (13), and the aperture of the main small hole (123) is adapted to the outer diameter of the main comb teeth (13); and / or The auxiliary comb skin (22) is provided with an auxiliary large hole (222) and an auxiliary small hole (223) at intervals, and auxiliary comb teeth (23) are respectively inserted into the auxiliary large hole (222) and the auxiliary small hole (223); the aperture of the auxiliary large hole (222) is larger than the outer diameter of the auxiliary comb teeth (23), and the aperture of the auxiliary small hole (223) is matched with the outer diameter of the auxiliary comb teeth (23).