CN216723552U - Prevent that tooth root from pressing from both sides gasbag comb broach subassembly of hair - Google Patents
Prevent that tooth root from pressing from both sides gasbag comb broach subassembly of hair Download PDFInfo
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- CN216723552U CN216723552U CN202220029156.2U CN202220029156U CN216723552U CN 216723552 U CN216723552 U CN 216723552U CN 202220029156 U CN202220029156 U CN 202220029156U CN 216723552 U CN216723552 U CN 216723552U
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- tooth
- air bag
- rubber
- comb teeth
- annular groove
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Abstract
The utility model discloses an air bag comb tooth assembly for preventing hair from being clamped between tooth roots, which comprises comb teeth and a rubber sheet provided with a plurality of through tooth holes, wherein the comb teeth are provided with annular grooves which are matched and fixed with the through tooth holes of the rubber sheet along the circumferential direction of the tooth roots; in the action circulation of combing, the wedge angle state for hair to pass through is always kept between the upper shoulder surface of the annular groove and the rubber sheet, and the phenomenon of hair clamping can not occur.
Description
Technical Field
The utility model relates to an air bag comb, in particular to an air bag comb tooth assembly for preventing hair from being clamped between tooth roots.
Background
The gasbag massage comb that is popular in the market at present comprises comb handle, rubber and broach, and the assembly structure of its broach is: set up circular shape perforation as shown in fig. 1 and 2 on rubber 1 ', the annular groove has been seted up to broach 2' root, the neck and the perforation adaptation of annular groove inlay in the perforation, the last shoulder 101 and the lower shoulder 102 of annular groove are parallel plane, go up shoulder 101 and the front laminating of rubber 1 'and cover the perforation from the front, lower shoulder 102 and the back laminating of rubber 1' and cover the perforation from the back of rubber, the problem that this broach assembly structure exists: because the rubber has the flexibility, when combing, the broach atress is fallen to the back, leads to appearing the gap between the binding face of last shoulder face and rubber, after the power of unloading, the gap is automatic closed again along with the restoring to the throne of broach, and this gap is continuously opened and is closed along with the action circulation of combing, with hair continuous clamp-in, causes the hair to receive the clamping and drag at the in-process of combing, brings not good combing experience.
Therefore, an air bag comb tooth assembly with the tooth root not clamping hair is needed, and the problem that the air bag comb tooth root clamps hair is solved.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to overcome the drawbacks of the prior art, and to provide an air bag comb tooth assembly for preventing hair from being caught between tooth roots, which solves the problem of hair being caught between the root of air bag comb teeth.
The air bag comb tooth assembly for preventing the hair from being clamped between the tooth roots comprises comb teeth and rubber provided with a plurality of through tooth holes, wherein an annular groove matched and fixed with the through tooth holes of the rubber is formed in the circumferential direction of the tooth roots of the comb teeth;
further, the longitudinal section of the upper shoulder surface of the annular groove is of an inverted trapezoidal structure;
further, the neck of the annular groove is positioned in the tooth hole and is in interference fit with the tooth hole;
further, the diameter of the neck of the annular groove is slightly larger than the aperture of the tooth hole;
further, the bottom diameter of the upper shoulder surface is the same as the diameter of the neck;
furthermore, the upper shoulder surface of the annular groove is in contact fit with the rubber at the upper edge part of the toothed hole, and the lower shoulder surface of the annular groove is in contact fit with the rubber at the lower edge part of the toothed hole by elastic pressure;
further, the length of the neck of the annular groove is slightly smaller than the thickness of the rubber sheet;
furthermore, the joints of the upper shoulder surface and the lower shoulder surface with the neck are in arc transition;
further, the lower shoulder surface is a plane tightly attached to the rubber at the lower edge of the tooth hole;
furthermore, the maximum diameter of the upper shoulder surface gradually shrinks inwards towards the comb teeth body in the tooth tip direction to form a rotary curved surface which is large downwards and small upwards along the teeth.
The beneficial effects of the utility model are: the utility model discloses an air bag comb tooth assembly for preventing hair from being clamped between tooth roots.
Drawings
The utility model is further described below with reference to the following figures and examples:
FIG. 1 is a diagram of a comb tooth initial/reset state of a prior art air bag comb;
FIG. 2 is a diagram of the deflection state of the comb teeth of the prior art air bag comb under stress;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a view showing an initial/reset state of comb teeth of the air bag comb tooth assembly according to the first embodiment of the present invention;
FIG. 5 is a diagram of a state of deflection of the comb teeth of the air bag comb tooth assembly under stress according to the first embodiment of the present invention;
FIG. 6 is a diagram showing an initial/reset state of comb teeth of an air bag comb tooth assembly according to a second embodiment of the present invention;
FIG. 7 is a diagram illustrating a state in which comb teeth of the air bag comb tooth assembly are deflected by a force according to a second embodiment of the present invention.
Detailed Description
FIG. 1 is a diagram of a comb tooth initial/reset state of a prior art air bag comb; FIG. 2 is a diagram of a state of deflection of comb teeth under stress of an airbag comb in the prior art; FIG. 3 is an enlarged view of portion A of FIG. 2; FIG. 4 is a view of the initial/reset state of the comb teeth of the air bag comb tooth assembly of the present invention; FIG. 5 is a diagram showing a state in which comb teeth of the air bag comb tooth assembly of the present invention are biased by force, and FIG. 6 is a diagram showing an initial/reset state of comb teeth of the air bag comb tooth assembly according to the second embodiment of the present invention; FIG. 7 is a diagram illustrating a state in which comb teeth of the air bag comb tooth assembly are deflected by a force according to a second embodiment of the present invention. As shown in the figure: the air bag comb tooth assembly for preventing the hair from being clamped between tooth roots of the air bag comb tooth assembly comprises comb teeth 2 and a rubber sheet 1 provided with a plurality of through tooth holes 3, wherein the comb teeth 2 are provided with annular grooves 4 which are matched and fixed with the through tooth holes 3 of the rubber sheet 1 along the circumferential direction of the tooth roots, each annular groove 4 comprises an upper shoulder surface 401, a lower shoulder surface 402 and a columnar neck 403 which is positioned between the upper shoulder surface 401 and the lower shoulder surface 402, the tooth roots of the comb teeth 2 penetrate through the tooth holes 3 to enable the upper shoulder surface 401 and the lower shoulder surface 402 of each annular groove 4 to be respectively lapped on the upper edge rubber sheet and the lower edge rubber sheet of the tooth holes 3, (as shown in the figure, the upper edge rubber sheet is the front surface of the rubber sheet 1, and the lower edge rubber sheet is the back surface of the rubber sheet 1), and the upper shoulder surface 401 of each annular groove 4 is a rotary curved surface which is large upwards and small downwards along the tooth roots; the annular groove 4 circumference sets up in 2 tooth bodies of broach, column neck 403 is the radial internal contraction of tooth body and forms, the smooth transition face that column neck 403 has to 2 tooth bodies of broach is last shoulder 401 to prong 4, the perforation 3 is arranged in to neck 403 of this annular groove 4, the rubber 1 is blocked from the front (towards 4 faces of prong) and the back (4 faces of prong dorsad) respectively to last shoulder 401 and the lower shoulder 402 of annular groove 4 of rubber 1, broach 2 is in the skew state of atress, the wedge angle state (as shown in fig. 5) that can supply hair to pass through is kept all the time between the last shoulder 401 of 2 tooth body annular grooves 4 of broach and the rubber 1, the phenomenon of hair can not appear in the clamping.
In this embodiment, the longitudinal section of the upper shoulder surface 401 of the annular groove 4 is an inverted trapezoidal structure; this structure can firmly block the front (towards 4 faces of prong) of rubber 1, prevents that broach 2 from withdrawing from towards the rubber back (lower edge portion rubber), and the broach 2 of being convenient for forms the wedge angle state that can supply hair to pass through when the atress incline simultaneously, can not the clamping hair.
In the present embodiment, the neck 403 of the annular groove 4 is located in the perforation 3 and is arranged in interference fit with the perforation 3; the diameter of the neck 403 of the annular groove 4 is slightly larger than the aperture of the tooth hole 3; the rubber sheet 1 at the edge of the tooth hole 3 firmly surrounds the neck 403 of the annular groove 4, and plays a good role in fixing the comb teeth 2.
In this embodiment, the bottom diameter of the upper shoulder surface 401 is the same as the diameter of the neck 403; the "bottom diameter" of the upper shoulder surface 401 is the diameter of the bottom surface of the upper shoulder surface 401, the upper shoulder surface 401 is a curved surface formed by gradually increasing from the neck 403 of the annular groove 4 to the tooth tip 4 toward the tooth body of the comb teeth 2, and the top surface of the upper shoulder surface 401 has the same diameter as the tooth body.
In this embodiment, the upper shoulder surface 401 of the annular groove 4 and the upper edge rubber sheet 1 of the perforation 3, and the lower shoulder surface 402 and the lower edge rubber sheet 1 of the perforation 3 are in contact fit with each other by elastic pressure (the rubber sheet at the edge of the perforation is located in the annular groove, and an elastic pressure contact surface is provided between the two); the length of the neck part 403 of the annular groove 4 is slightly less than the thickness of the rubber sheet 1; the joints of the upper shoulder surface 401 and the lower shoulder surface 402 with the neck 403 are in arc transition; the lower shoulder surface 402 is a plane tightly attached to the rubber sheet 1 at the lower edge of the perforation 3; this structure can firmly block the front (towards the prong face) and the back (the prong face of being shaded) of rubber 1, makes 3 marginal rubber 1 of perforation firmly encircle in neck 403 of ring channel 4, plays fine fixed action to broach 2, and the broach 2 of being convenient for simultaneously forms the wedge angle state that can supply the hair silk to pass through when the atress incline, can not the clamping hair.
In this embodiment, the maximum diameter of the upper shoulder surface 401 gradually shrinks inward toward the tooth body of the comb teeth 2 at the tooth tip 4 direction to form a large-sized and small-sized revolution surface along the tooth; the diameter of the tooth body above the upper shoulder surface 401 is reduced in two stages towards the direction of the tooth tip 4, the first stage distance is short, a step which is an inclined plane is formed, and the second stage distance is long, so that a gentle conical surface is formed.
In the above embodiment, the diameter of the tail section below the lower shoulder surface 402 gradually decreases toward the tail end, the diameter of the tooth body above the upper shoulder surface 401 gradually decreases toward the tooth tip 4, the tail end is connected to the tooth tip 4, the tooth tip 4 is a spherical surface formed by the convergence of the tail end of the tooth body, or the tooth tip 4 is a spherical or ellipsoidal body protruding from the tooth body.
Example one
In the air bag comb tooth assembly of the embodiment, the thickness of a rubber 1 is 2mm, a plurality of tooth holes 3 with the diameter of 1.5mm are formed in the rubber 1, an annular groove 4 is formed in the root of each comb tooth 2, the lower shoulder surface 402 of the annular groove 4 is a plane, the diameter of the annular groove is 3.5mm, a tail section 5 is arranged below the lower shoulder surface 402, the length of the tail section 5 is about 2.5mm, the diameter of the tail section 5 is equal to the diameter of the lower shoulder surface 402, and the diameter of the tail section 5 is slightly reduced towards the end surface so as to facilitate the comb teeth to be inserted into the rubber 1 from the tail end; the diameter of the neck 403 of the comb teeth 2 is 2mm, which is slightly larger than the diameter of the tooth hole, so that the neck 403 and the tooth hole 3 can keep interference fit, and coaxial fixation between the comb teeth 2 and the tooth hole 3 is ensured; the upper shoulder surface 401 of the annular groove 4 is a conical surface with a large upper part and a small lower part, the top diameter of the conical surface is 3.5mm, the bottom diameter of the conical surface is the same as the diameter of the neck part 403 of the annular groove 4, the length of the neck part 403 of the annular groove 4 (namely the distance between the bottom of the conical surface and the lower shoulder surface) is 1.8mm, and is slightly smaller than the thickness of the rubber sheet 1, so that the upper shoulder surface 401 is forced to tightly support the rubber sheet 1 along the axial direction, and the good sealing of the hole opening is ensured while the comb teeth are effectively fixed; the intersection of the upper shoulder surface 401 and the neck part 403 and the intersection of the lower shoulder surface 402 and the neck part 403 adopt R0.1 fillet transition, which is beneficial to improving the processing technology of the annular groove; the tooth body above the upper shoulder surface 401 is gradually reduced towards the tooth tip direction, and the tooth tip 4 is a ball head with the diameter slightly larger than that of the tooth body.
Example two
Air bag comb tooth assembly of this embodiment: the upper shoulder surface 401 is a slightly convex spherical surface with a large upper part and a small lower part; the tooth body above the shoulder surface 401 of the annular groove 4 is gradually reduced towards the tooth tip, and the tooth tip 4 is a rounded surface formed by smooth convergence of the tail end of the tooth body. In a free state, the upper shoulder surface 401 and the lower shoulder surface 402 clamp the rubber sheet 1 from the front surface and the back surface of the rubber sheet 1 respectively and cover the tooth holes, and an annular wedge-shaped gap is kept between the upper shoulder surface 401 and the rubber sheet 1. When combing, the comb teeth 2 are deflected, the wedge-shaped gap facing one side of the hair becomes slightly larger, the combing is finished, the comb teeth automatically reset to a free state, and in the action cycle of combing, the wedge-shaped gap only has size change, the phenomenon of alternately opening and closing does not exist, and the phenomenon of clamping the hair cannot be caused.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a prevent that tooth root presss from both sides gasbag comb broach subassembly of hair which characterized in that: including the broach with be provided with a plurality of rubber that run through the perforation, the broach is provided with the annular channel fixed with the perforation cooperation of rubber along root of tooth circumference, the annular channel includes shoulder, lower shoulder and is located the column neck between shoulder and the lower shoulder, the root of tooth of broach passes the perforation and makes the last shoulder and the lower shoulder of annular channel overlap joint respectively in the last edge rubber and the lower edge rubber of perforation, the last shoulder of annular channel is for following the big end down surface of gyration of tooth upwards.
2. The air bag comb tooth assembly for preventing hair entrapment at the tooth root of claim 1, wherein: the longitudinal section of the upper shoulder surface of the annular groove is of an inverted trapezoidal structure.
3. The air bag comb teeth assembly of claim 2, wherein said air bag comb teeth assembly further comprises: the neck of the annular groove is positioned in the tooth hole and is in interference fit with the tooth hole.
4. The air bag comb teeth assembly of claim 3, wherein: the diameter of the neck of the annular groove is slightly larger than the aperture of the tooth hole.
5. The air bag comb teeth assembly of claim 4, wherein said air bag comb teeth assembly further comprises: the bottom diameter of the upper shoulder surface is the same as the diameter of the neck.
6. The air bag comb tooth assembly for preventing hair entrapment at the tooth root of claim 5, wherein: the upper shoulder surface of the annular groove is in contact fit with the rubber at the upper edge part of the toothed hole, and the lower shoulder surface of the annular groove is in contact fit with the rubber at the lower edge part of the toothed hole by elastic pressure.
7. The air bag comb tooth assembly for preventing hair entrapment at the tooth root of claim 6, wherein: the length of the neck of the annular groove is slightly smaller than the thickness of the rubber sheet.
8. The air bag comb teeth assembly of claim 7, wherein: the joints of the upper shoulder surface and the lower shoulder surface with the neck are in arc transition.
9. The air bag comb teeth assembly of claim 8, wherein: the lower shoulder surface is a plane tightly attached to the rubber at the lower edge of the tooth hole.
10. The air bag comb teeth assembly of claim 9, wherein: the maximum diameter of the upper shoulder surface gradually shrinks inwards towards the tooth body of the comb teeth in the tooth tip direction to form a rotary curved surface which is large downwards and small upwards along the teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220029156.2U CN216723552U (en) | 2022-01-06 | 2022-01-06 | Prevent that tooth root from pressing from both sides gasbag comb broach subassembly of hair |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220029156.2U CN216723552U (en) | 2022-01-06 | 2022-01-06 | Prevent that tooth root from pressing from both sides gasbag comb broach subassembly of hair |
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| CN216723552U true CN216723552U (en) | 2022-06-14 |
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| CN202220029156.2U Active CN216723552U (en) | 2022-01-06 | 2022-01-06 | Prevent that tooth root from pressing from both sides gasbag comb broach subassembly of hair |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040633A1 (en) * | 2022-08-23 | 2024-02-29 | 宁波柏纷迪国际贸易有限公司 | Novel rubber hair brush |
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2022
- 2022-01-06 CN CN202220029156.2U patent/CN216723552U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040633A1 (en) * | 2022-08-23 | 2024-02-29 | 宁波柏纷迪国际贸易有限公司 | Novel rubber hair brush |
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