CN205492913U - Hair -pin structure - Google Patents

Abstract

The utility model provides a hair -pin structure which includes: first clamp, second clamp, elastic element, first broach spare and second broach spare. First clamp includes first splenium, first clamping part and the first pin joint portion of pressing. The internal surface of first clamping part has first spacing recess. The second clamp include the second clamping part of mutually supporting according to the splenium, with first clamping part corresponding to first second according to the splenium and with mutual pin joint complex second pin joint portion of first pin joint portion. The internal surface of second clamping part has the spacing recess of second. Elastic element connects between first pin joint portion and second pin joint portion. First broach spare sets up in first spacing recess. Second broach spare sets up in the spacing recess of second. The embodiment of the utility model provides a hair -pin structure who provides has good anti -skidding effect.

Description

Hairpin structure

Technical field

This utility model is related to a kind of hairpin structure, particularly to a kind of have be arranged in limited impression to provide the hairpin structure of the comb part of skidproof effect.

Background technology

The product that the most various hair clips are relevant at present is constantly weeded out the old and bring forth the new, and therefore girl is frequently used the moulding of hair clip change hair, to increase the attractive in appearance of self external form.Especially by utilizing various sizes of hair clip or the hair clip of different external form, people is allowed visually to produce feeling of freshness.The advantage using hair clip is, one so that moulded seem neat, and two can avoid hair because of caused hair quality damage situations of being exposed to the weather at random, and clear sea can be tightened up and do not affected the duty of user by three.

And typically hair clip the most all has two clamps, provide clamping by the combination of two clamps in left and right and hold the topknot of hair.But, the facility made for cost-effective and raising, the clamp of commercially available hair clip is designed as integrally formed plastic structure mostly.These acrylic structures have smooth surface, so being difficult to when acrylic structure contacts with hair firmly grasp topknot efficiently.

In other words, when user is when using hair clip, it is easy to pull or start causes hair clip landing on topknot because casual.Good ligature effect cannot be provided at all.Therefore, the improvement how to be designed by structure, promote the skidproof effect of hair clip, overcome above-mentioned disappearance, it has also become one of important topic that this cause to be solved.

Utility model content

Technical problem to be solved in the utility model is, provides a kind of hairpin structure for the deficiencies in the prior art.

In order to solve above-mentioned technical problem, the wherein technical scheme that this utility model is used is to provide a kind of hairpin structure, comprising: one first clamp, one second clamp, a flexible member, one first comb part and one second comb part.Described first clamp includes one first press section, one first clamping part and one first articulated section.The inner surface of described first clamping part has one first limited impression.Described second clamp includes one corresponding to the second press section of described first press section, second clamping part cooperated with described first clamping part and one and the second articulated section of the described first mutual pivotal fit in articulated section.The inner surface of described second clamping part has one second limited impression.Described flexible member is connected between described first articulated section and described second articulated section.Described first comb part is arranged in described first limited impression.Described second comb part is arranged in described second limited impression.

In one embodiment of the invention, the width of described first comb part is less than or equal to the width of described first limited impression, and the width of described second comb part is less than or equal to the width of described second limited impression.

In one embodiment of the invention, described first comb part includes that one is arranged on the first connecting portion in described first limited impression and multiple the first comb being arranged on described first connecting portion, described second comb part includes that one is arranged on the second connecting portion in described second limited impression and multiple the second comb being arranged on described second connecting portion, and described in each of which, the height of the first comb is identical with the height of the second comb each described.

In one embodiment of the invention, multiple described first comb are arranged with the layout arrangement being perpendicular to one first arc-shaped inner surface of described first clamping part, and multiple described second comb is arranged with the layout arrangement being perpendicular to one second arc-shaped inner surface of described second clamping part.

In one embodiment of the invention, described first limited impression has one first jaw district and the one first clamping district adjacent to described first jaw district, and, described second limited impression has a second jaw district cooperated with described first jaw district and adjacent to the second clamping district in described second jaw district.

In one embodiment of the invention, described first clamping part is one first forked type structure, and described second clamping part is one second forked type structure, and described first forked type structure is crisscross arranged with described second forked type structure.

In one embodiment of the invention, described flexible member has a spring, first the supporting foot and of pulling and be connected to second the supporting and pull foot of an other end of described spring of a wherein end being connected to described spring.

In one embodiment of the invention, have one first on described first press section and support groove, described first supports foot of pulling is resisted against described first and supports and have one second on groove, and described second press section and support groove, and described second supports foot of pulling is resisted against described second and supports groove.

In one embodiment of the invention, described first articulated section includes one first locating piece and one second locating piece, described second articulated section includes one the 3rd locating piece and one the 4th locating piece, described flexible member is arranged between described 3rd locating piece and described 4th locating piece, described 3rd locating piece is arranged between described first locating piece and described flexible member, and described 4th locating piece is arranged between described second locating piece and described flexible member.

In one embodiment of the invention, described hairpin structure still further comprises a fixture, the two ends of described fixture are respectively provided with a first gear stop and a second gear stop, and described fixture is sequentially through described first locating piece, described 3rd locating piece, described spring, described 4th locating piece and described second locating piece, wherein said first gear stop is arranged on described first locating piece, and described second gear stop is arranged on described second locating piece.

In sum, the beneficial effects of the utility model can be, the hairpin structure that this utility model embodiment is provided, and it can be by the design of " being arranged at the comb part of clamp upper limit groove ", so that hairpin structure has preferable skidproof effect.Comb part can directly be connected closely sealed with limited impression, it is provided that and frictional force stronger between hair, the skidproof effect of hair clip can be promoted whereby.

Also further appreciate that feature of the present utility model and technology contents for enabling, refer to below in connection with detailed description of the present utility model and accompanying drawing, but accompanying drawing only provides reference and explanation use, be not used for this utility model is any limitation as.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of conventional hairpin structure.

Fig. 2 is the three-dimensional combination schematic diagram of this utility model hairpin structure.

Fig. 3 is the perspective exploded view of this utility model hairpin structure.

Fig. 4 is the schematic diagram of the first clamp of this utility model hairpin structure.

Fig. 5 is the first clamp and the decomposing schematic representation of the first comb part of this utility model hairpin structure.

Fig. 6 is the closure state schematic diagram of this utility model hairpin structure.

Fig. 7 is the open configuration schematic diagram of this utility model hairpin structure.

Fig. 8 is the top view of this utility model hairpin structure.

Fig. 9 is the three-dimensional combination schematic diagram at another visual angle of this utility model hairpin structure.

Figure 10 is the use view of hairpin structure of the present utility model.

Wherein, description of reference numerals is as follows:

Hairpin structure H, H '

First clamp 1 first press section 11

First supports groove 11g

First clamping part 12

First articulated section 13

First locating piece 131

Second locating piece 132

First limited impression g1

First clamping district g1r1

First jaw district g1r2

Second clamp 2 second press section 21

Second supports groove 21g

Second clamping part 22

Second articulated section 23

3rd locating piece 231

4th locating piece 232

Second limited impression g2

Second clamping district g2r1

Second jaw district g2r2

First comb part 3 first connecting portion 31

First comb c1

Second comb part 4 second comb c2

Flexible member 5 spring 51

First supports the foot 51a that pulls

Second supports the foot 51b that pulls

Fixture 6 first gear stop 61

Second gear stop 62

Detailed description of the invention

The following is, by specific instantiation, the embodiment about " hairpin structure " is described disclosed in this utility model, those skilled in the art can be understood advantage of the present utility model and effect by content disclosed in this specification.This utility model can be implemented by other different specific embodiments or be applied, and the every details in this specification may be based on different viewpoints and application, carries out various modification and change under not departing from spirit of the present utility model.It addition, of the present utility model graphic be only the most schematically illustrate, not according to the description of actual size, first give chat bright.Following embodiment will be explained in further detail correlation technique content of the present utility model, but disclosure of that be not used to limit technology category of the present utility model.

Although should be understood that possible use term first, second, third, etc. are to describe various element or signal etc. herein, but these elements or signal should not limited by these terms.These terms are to distinguish an element and another element, or a signal and another signal.It addition, as used herein, term "or" potentially includes any one or multiple all combinations of listing in project of being associated depending on practical situation.

Refer to the schematic perspective view that Fig. 1, Fig. 1 are conventional hairpin structure.Conventional hairpin structure H ' is that the acrylic structure utilizing two panels integrally formed assembles.The generally surface of acrylic structure presents smooth planar shape, so user is when using hairpin structure, and the often landing because the surface of acrylic cannot firmly grasp hair efficiently.Therefore, this case is in order to solve above-mentioned problem, it is proposed that following utility model.

Refer to the three-dimensional combination schematic diagram that Fig. 2 and Fig. 3, Fig. 2 are this utility model hairpin structure.Fig. 3 is the perspective exploded view of this utility model hairpin structure.This utility model embodiment provides a kind of hairpin structure H, and it includes one first clamp 1,1 second clamp 2,1 first comb part 3,1 second comb part 4 and a flexible member 5.First comb part 3 is arranged on the first clamp 1, and the second comb part 4 is arranged on the second clamp 2.Furthermore, the first clamp 1 and the second clamp 2 are to be connected by flexible member 5 to combine, with firm hair clip overall structure.

From the above, the first clamp 1 includes one first press section 11,1 first clamping part 12 and one first articulated section 13, and the inner surface of the first clamping part 12 has one first limited impression.In the present embodiment, the first press section 11 extends in one end of the first clamp 1, and is bent into an arcuation towards a first direction.First clamping part 12 extends in the other end of the first clamp 1, and extends into a long arcuation towards in contrast to a second direction of first direction.First articulated section 13 is arranged between the first press section 11 and the first clamping part 12.In other embodiments, the first direction extended from the first press section 11 can be identical with the second direction that the first clamping part 12 is extended.Those skilled in the art can arbitrarily carry out various modification and change for the external form of clamp, and this utility model is not limited thereto.It is noted that the first limited impression of the first clamping part 12 inner surface is structurally roughly the same with the first comb part 3, and the first comb part 3 is arranged in the first limited impression.

Second clamp 2 includes one second press section 21,1 second clamping part 22 and one second articulated section 23.Specifically, the second clamp 2 has the structure identical with the first clamp 1, and therefore the concrete structure for the second clamp 2 refer to the explanation of aforementioned first clamp 1.Furthermore, the second press section 21 is corresponding to the first press section 11, and the second clamping part 22 cooperates with the first clamping part 12, and the second articulated section 23 and the first mutual pivotal fit in articulated section 13.It addition, the inner surface of the second clamping part 22 has one second limited impression, the second limited impression structure of the second clamping part 22 inner surface is roughly the same with the second comb part 4, and the second comb part 4 is arranged in the second limited impression.

Need to describe in detail, as it is shown on figure 3, flexible member 5 connects the first articulated section 13 of being arranged on the first clamp 1 and is arranged on the second clamp 2 between second articulated section 23.In the present embodiment, flexible member 5 can be a spring.In other embodiments, flexible member can also be shell fragment, or elastic washer etc. has the structure of telescopic resilience.This utility model is not any limitation as with the change of structure on any flexible member.

Refer to the schematic diagram of the first clamp that Fig. 4, Fig. 4 are this utility model hairpin structure.In first limited impression g1 structure generally identical with the structure of the first clamping part 12.In the present embodiment, on the whole the first clamping part 12 is gone up and can be divided into one for the holding structure of clamping ligature hair, and one is used for capturing to clamp the claw type structure of hair.Therefore, the first limited impression g1 has one first clamping district g1r1 relative to holding structure, and the first limited impression g1 has one first jaw district g1r2 relative to claw type structure, and the first clamping district g1r1 of the first limited impression g1 is adjacent to the first jaw district g1r2.It is noted that in the present embodiment, the position of the two of about three points of claw type structure is only arrived in the position set by the first jaw district g1r2, so the position set by the first jaw district g1r2 is incomplete same with the claw type structure of the first clamping part 12.In other embodiments, the first jaw district g1r2 is arranged at the position of claw type structure can be identical.

It addition, refer to Fig. 3 and Fig. 4 again.The concrete structure of the second clamp 2 and the structure of the first clamp 1 are identical, and therefore the detailed construction for the second limited impression refer to the explanation of aforementioned first limited impression g1, no longer adds redundant at this.What deserves to be explained is, the second limited impression has the second clamping district and the second jaw district, and the second clamping district is adjacent to the second jaw district.Further, cooperated with the first jaw district g1r2 by the second jaw district, it is provided that during ligature, capture the quantity of hair.And cooperated by the second clamping district and the first clamping district g1r1, it is provided that house and the space of fixing hair.Owing on the whole the particular location of the second limited impression and the first limited impression g1 is gone up identical, as long as the second limited impression can cooperate this utility model with the first limited impression g1 with the change of its structure.

Refer to the first clamp and the decomposing schematic representation of the first comb part that Fig. 5, Fig. 5 are this utility model hairpin structure.First comb part 3 is arranged in the first limited impression g1.Specifically, the first comb part 3 includes first connecting portion 31 being arranged in the first limited impression g1 and multiple the first comb c1 being arranged on the first connecting portion 31.First connecting portion 31 can seem to have epoxy sticker, silica gel sticker or acrylic sticker etc. to be attached in the first limited impression g1 by adhesion glue material.Or, the first connecting portion 31 can pass through technical process, seems injection molding, impressing shaping etc., is formed directly in the first limited impression g1.Any those skilled in the art optionally use means of different to be arranged in the first limited impression g1 by the first connecting portion 31, and this utility model is not intended to be limited in any in this.

Furthermore, in the present embodiment, the width of the first comb part 3 is equal to the width of the first limited impression g1, and each the first comb c1 on the first comb part 3 has identical height.In other embodiments, the width of the first comb part 3 can also be equal to the width of the first limited impression g1, and the height of each the first comb c1 can be different.For example, each the first comb c1 corresponding to the first clamping district g1r1 is highly more than the height of each the first comb c1 corresponding to the first jaw district g1r2.Or, the height of each the first comb c1 is entirely different, the first clamping district g1r1 extend to the first jaw district g1r2 and present the arrangement mode etc. that highly successively decreases.

Subsidiary one carries, and the first comb part 3 can entirety be all soft structures, is such as the elastomeric material of polyesters.Or, the first connecting portion 31 or the first comb c1 of the first comb part 3 one of them be soft structures, another part is then hard structure.Or, the first comb part 3 can entirety be all hard structure.

It addition, refer to Fig. 3 and Fig. 5 again.In the present embodiment, second clamp 2 arranges relation and the first clamp 1 and the concrete structure of the first comb part 3 with the concrete structure of the second comb part 4, and to arrange relation identical, therefore the detailed construction for the second clamp 2 and the second comb part 4 refer to aforementioned first clamp 1 and the explanation of the first comb part 3, no longer adds redundant at this.Second comb part 4 includes one second connecting portion being arranged in the second limited impression, and multiple the second comb being arranged on the second connecting portion.Further, the structure of the second comb part 4 and the second limited impression is arranged, and the width of the second comb part 4 can arbitrarily be adjusted to the width less than or equal to the second limited impression.

It is noted that in the present embodiment, the height of each the second comb is identical, and the height of each the first comb c1 is identical with the height of each the second comb.In additional embodiment, the height of the second comb can also be different from the height of the first comb c1.For example, the height of each the second comb may be larger than the height of each the first comb c1.Or, the first clamping district g1r1 extending to each first comb c1 of the first jaw district g1r2, it highly presents the arrangement mode that successively decreases；And each second comb in the second jaw district is extended to by the second clamping district, it highly presents incremental arrangement mode etc..Owing on the whole the position that specifically arranges of the second comb part 4 with the first comb part 3 goes up identical, as long as the second comb part 4 can cooperate this utility model with the first comb part 3 with the change of its structure.

Refer to the closure state schematic diagram that Fig. 6, Fig. 6 are this utility model hairpin structure.When the first press section 11 of the first clamp 1 and the second press section 21 of the second clamp 2 all do not have stress, hairpin structure presents closure state.As shown in Figure 6, under hair clip closure state, the first comb c1 extends to the claw type structure of the first clamping part 12 from the holding structure of the first clamping part 12.Further, the first comb c1 can be exposed to the region that under closure state, the first clamping part 12 exposes.Similarly, the second comb c2 extends to the claw type structure of the second clamping part 22 from the holding structure of the second clamping part 22.Further, the second comb c2 can be exposed to the region that under closure state, the second clamping part 22 exposes.

Refer to the open configuration schematic diagram that Fig. 7, Fig. 7 are this utility model hairpin structure.When the first press section 11 of the first clamp 1 and the second press section 21 of the second clamp 2 are exerted a force by an adverse effect simultaneously, the first clamping part 12 and the second clamping part 22 present the state opened because of the first press section 11 and the gearing strength of the second press section 21.

Refer to Fig. 6 and Fig. 7, multiple first comb c1 again arrange with the layout arrangement being perpendicular to one first arc-shaped inner surface of the first clamping part 12, and multiple second comb c2 is arranged with the layout arrangement being perpendicular to one second arc-shaped inner surface of the second clamping part 22.Specifically, the most perpendicular existing shape is cut on the surface that each comb and this comb are arranged.Each is arranged at the first comb c1 the most perpendicular shape of tangent line along the first g1r1 surface, clamping district of the first clamping district g1r1, and each is arranged at the first comb c1 the most perpendicular shape of tangent line along the first g1r2 surface, jaw district of the first jaw district g1r2.Furthermore, each is arranged at the second comb c2 the most perpendicular shape of tangent line along the second g2r1 surface, clamping district of the second clamping district g2r1, and each is arranged at the second comb c2 the most perpendicular shape of tangent line along the second g2r2 surface, jaw district of the second jaw district g2r2.

Refer to the top view that Fig. 8, Fig. 8 are this utility model hairpin structure.In the present embodiment, the first clamp 1 and the second clamp 2 are to be connected by flexible member 5 to combine.Flexible member 5 has a spring 51, and is connected to first the supporting the foot 51a and that pulls and be connected to second the supporting and pull foot 51b of an other end of spring 51 of a wherein end of spring 51.First supports the foot 51a and second that pulls is resisted against on the first clamp 1 and the second clamp 2 respectively to the foot 51b that pulls.Subsidiary one carries, and the first press section 11 has one first and supports groove 11g, and first is resisted against first to the foot 51a that pulls supports in groove 11g, to provide the strength of contact.Further, the second press section 21 having one second and supports groove 21g, second is butted on second to the foot top 51b that pulls supports in groove 21g, to provide the strength of contact.

Specifically, spring 51 is to be linked by the first articulated section 13 on the first clamp 1 and the second articulated section 23 on the second clamp 2.First and last, the second articulated section 23 is arranged between the first articulated section 13, and spring 51 is disposed between the second articulated section 23.Specifically, the first articulated section 13 includes one first locating piece 131 and one second locating piece 132.Second articulated section 23 includes one the 3rd locating piece 231 and one the 4th locating piece 232.Elastic component 5 can be arranged between the 3rd locating piece 231 and the 4th locating piece 232.3rd locating piece 231 is arranged between the first locating piece 131 and elastic component 5, and the 4th locating piece 232 is arranged between the second locating piece 132 and elastic component 5.

Further illustrate, refer to Fig. 3 and Fig. 8 again.Hairpin structure H in this utility model embodiment, also includes a fixture 6.The two ends of fixture 6 are respectively provided with first gear stop 61 and a second gear stop 62.Fixture 6 passes the first articulated section 13, spring 51 and the second articulated section 23, to fix the first clamp 1 and the second clamp 2.

From the above, fixture 6 is sequentially through the 3rd locating piece 231 of first locating piece the 131, second articulated section 23, the center of spring 51, the 4th locating piece 232 of the second articulated section 23 and second locating piece 132 of the first articulated section 13 of the first articulated section 13.And the first gear stop 61 on fixture 6 is arranged on the first locating piece 131, second gear stop 62 is arranged on the second locating piece 132.The first locating piece 131 and the second locating piece 132 being fastened in respectively on the first articulated section 13 by the first gear stop 61 on fixture 6 and second gear stop 62, to reach to link the effect of the whole hairpin structure of fastening.

Refer to the three-dimensional combination schematic diagram that Fig. 9, Fig. 9 are another visual angle of this utility model hairpin structure.First clamping part 12 is one first forked type structure, and the second clamping part 22 is one second forked type structure, and the first forked type structure is crisscross arranged with the second forked type structure.Subsidiary one carries, and in the present embodiment, the first forked type structure has the prong quantity identical with the second forked type structure.In other embodiments, the first forked type structure can have with the second forked type structure varying number prong.For example, the first forked type structure can have five prongs, and the second forked type structure then has four prongs, and five prongs of four prongs of the second forked type structure and the first forked type structure be combined with each other.

Furthermore, in the present embodiment.When hairpin structure in closed state, the first forked type structure and the second forked type form touch, strengthen the effect of fastening article whereby.But, in other embodiments, in closed state, the first forked type structure can not contact hairpin structure with the second forked type structure.Or, the first forked type structure can only have can touch with the second forked type structure.Those skilled in the art can arbitrarily adjust the first forked type structure and the second forked type structure and annexation thereof according to making required sealing property, and this utility model is not limited.

Refer to the use view that Figure 10, Figure 10 are hairpin structure of the present utility model.User, because required moulding is different, can grip and fix, by the first clamp 1 and the second clamp 2, the moulding that hair is wanted to provide user.But, hairpin structure is on reality is applied, probably due to varying in size of size and affecting is captured sends out the difference measured.Being only a wherein application example of the present embodiment shown in Figure 10, its size is not any limitation as by this utility model.

Feasible effect of embodiment

In sum, the beneficial effects of the utility model can be, the hairpin structure that this utility model embodiment is provided, and it can be by the design of " being arranged at the comb part of clamp upper limit groove ", so that hairpin structure has preferable skidproof effect.Comb part can directly be connected closely sealed with limited impression, it is provided that and frictional force stronger between hair, the skidproof effect of hair clip can be promoted whereby.

An other beneficial effect of the present utility model can be, the hairpin structure that this utility model embodiment is provided, its can by " comb be perpendicular to clamp arc-shaped inner surface layout arrangement arrange " design so that each comb can and the hair of ligature between there is higher grasp.Whereby, the stable degree on capturing between hairpin structure and hair is strengthened, to promote the skidproof effect of hair clip.

The foregoing is only preferable possible embodiments of the present utility model, non-therefore limit to the scope of the claims of the present utility model, therefore the equivalence techniques change such as using this utility model description and graphic content to be done, it is both contained in protection domain of the present utility model.

Claims (10)

1. a hairpin structure, it is characterised in that described hairpin structure includes:

One first clamp, described first clamp includes one first press section, one first clamping part and one first articulated section, and the inner surface of wherein said first clamping part has one first limited impression；

One second clamp, described second clamp includes second articulated section corresponding to the second press section of described first press section, second clamping part cooperated with described first clamping part and one and the described first mutual pivotal fit in articulated section, and the inner surface of wherein said second clamping part has one second limited impression；

One flexible member, described flexible member is connected between described first articulated section and described second articulated section；

One first comb part, described first comb part is arranged in described first limited impression；And

One second comb part, described second comb part is arranged in described second limited impression.

2. hairpin structure as claimed in claim 1, wherein, the width of described first comb part is less than or equal to the width of described first limited impression, and the width of described second comb part is less than or equal to the width of described second limited impression.

3. hairpin structure as claimed in claim 1, wherein, described first comb part includes that one is arranged on the first connecting portion in described first limited impression and multiple the first comb being arranged on described first connecting portion, described second comb part includes that one is arranged on the second connecting portion in described second limited impression and multiple the second comb being arranged on described second connecting portion, and described in each of which, the height of the first comb is identical with the height of the second comb each described.

4. hairpin structure as claimed in claim 1, wherein, multiple described first comb are arranged with the layout arrangement being perpendicular to one first arc-shaped inner surface of described first clamping part, and multiple described second comb is arranged with the layout arrangement being perpendicular to one second arc-shaped inner surface of described second clamping part.

5. hairpin structure as claimed in claim 1, wherein, described first limited impression has one first jaw district and the one first clamping district adjacent to described first jaw district, and, described second limited impression has a second jaw district cooperated with described first jaw district and adjacent to the second clamping district in described second jaw district.

6. hairpin structure as claimed in claim 1, wherein, described first clamping part is one first forked type structure, and described second clamping part is one second forked type structure, and described first forked type structure is crisscross arranged with described second forked type structure.

7. hairpin structure as claimed in claim 1, wherein, described flexible member have a spring, one be connected to described spring a wherein end first support foot and of pulling be connected to described spring an other end second support foot of pulling.

8. hairpin structure as claimed in claim 7, wherein, described first press section having one first and supports groove, described first is resisted against described first to foot of pulling supports groove, and have one second on described second press section and support groove, described second supports foot of pulling is resisted against described second and supports groove.

9. hairpin structure as claimed in claim 8, wherein, described first articulated section includes one first locating piece and one second locating piece, described second articulated section includes one the 3rd locating piece and one the 4th locating piece, described flexible member is arranged between described 3rd locating piece and described 4th locating piece, described 3rd locating piece is arranged between described first locating piece and described flexible member, and described 4th locating piece is arranged between described second locating piece and described flexible member.

10. hairpin structure as claimed in claim 9, wherein, described hairpin structure still further comprises a fixture, the two ends of described fixture are respectively provided with a first gear stop and a second gear stop, and described fixture is sequentially through described first locating piece, described 3rd locating piece, described spring, described 4th locating piece and described second locating piece, wherein said first gear stop is arranged on described first locating piece, and described second gear stop is arranged on described second locating piece.