CN103190961A

CN103190961A - Self-locking bracket

Info

Publication number: CN103190961A
Application number: CN2013100714971A
Authority: CN
Inventors: 王光良
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-07-10

Abstract

The invention discloses a self-locking bracket comprising bracket body having an archwire groove and a bracket opening, wherein two sides of the bracket opening are symmetrically provided with sliding grooves, insides of the sliding grooves are provided with vertical groove edges, a bracket cover is slidedly arranged in the sliding grooves, two sides of the bracket cover are provided with sliding strips cooperating with the sliding grooves, front ends of the sliding strips are provided with front wing hooks, a hollow groove and a lock groove in cooperation with the front wing hooks are respectively arranged at the groove edges of the sliding grooves at right side and left side of the archwire groove, a height of an entrance of the lock groove is smaller than a thickness of the front wing hooks, a height of the inside of the lock groove is greater than or equal to the thickness of the front wing hooks; when the bracket cover is open, the front wing hooks are hidden in the hollow groove and thus the archwire groove is exposed; and when the bracket cover is close, the front wing hooks enable the lock groove to be deformed when the front wing hooks pass through the entrance of the lock groove under external forces, so that after the front wing hooks are fully inserted into the lock groove, a purpose of self-locking by utilizing that the height of the entrance of the lock groove is smaller than the thickness of the front wing hooks can be achieved. The lock groove of the bracket is located in the bracket body, and can increase intensity of the bracket body and greatly shorten size of the bracket body.

Description

The self-locking bracket

Technical field

The present invention relates to the orthodontic technical field, particularly the just abnormal self-locking bracket of a kind of tooth.

Background technology

At present, in the orthodontic treatment process of Buccodental, orthodontic bracket is fixed on the facing, arch wire passes the archwire slot (having another name called square shred groove) on the bracket, and by ligation rubber ring or steel ligature with the direct ligation of arch wire on bracket tie wings, the corrective force of arch wire is delivered to tooth by bracket, makes tooth produce the movement of expecting, to reach the purpose of proofreading and correct tooth.

Because at present used ligation rubber ring or steel ligature ligation directly force in arch wire on the tie wings of bracket, arch wire has been produced bigger pressure, hindered the normal movement of arch wire, thereby shadow are to the just abnormal effect of tooth.At present, also occurred multiple self-locking bracket on the market, active and passive type two big series have been arranged, but structure more complicated all, manufacture difficulty is big, and the cost height is expensive, operating difficulties.

Summary of the invention

The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of easily manufactured, simple to operate, reliable and stable tooth orthodontics self-locking bracket is provided.

Technical scheme of the present invention is achieved in that

A kind of self-locking bracket, comprise the supporter groove with arch wire groove, arch wire groove both sides are provided with the work wing, on supporter groove, intersect with the arch wire groove and be provided with the bracket mouth, bracket mouth and the arch wire groove wing of will working is divided into four fritters, this bracket mouth lateral symmetry is offered the chute that wired cutting forms, in chute, vertically be provided with trough rim, in chute, slide and be provided with the bracket lid, described bracket lid both sides are provided with the draw runner that cooperates with chute, between two draw runners of bracket lid front end, be provided with breach, the front end of draw runner is provided with the preceding pterygoid hamulus to the draw runner lateral expansion, the trough rim of the chute both sides in arch wire groove left side be provided with described before the saturating dead slot that cooperates of pterygoid hamulus, the trough rim of the chute both sides on arch wire groove right side be provided with described before cooperate and the locked groove that can produce strain of pterygoid hamulus, the height of locked groove porch is less than the thickness of preceding pterygoid hamulus, and the height of locked groove inside is more than or equal to the thickness of preceding pterygoid hamulus; Described dead slot and locked groove all are close to the arch wire groove; When the bracket lid was open mode, preceding pterygoid hamulus was hided in saturating dead slot and preceding pterygoid hamulus hooks the trough rim of the chute both sides in arch wire groove left side, thereby exposes the arch wire groove; When the bracket lid is closed condition, the bracket lid leaves dead slot and mobile to the right by arch wire groove left side under external force, the preceding pterygoid hamulus of bracket lid makes locked groove produce deformation when passing through the locked groove entrance, after inserting in the locked groove fully, utilize the height of locked groove entrance to reach the purpose of self-locking less than the thickness of preceding pterygoid hamulus.

Preceding pterygoid hamulus with the bracket lid pushes in the locked groove for convenience, as preferably, respectively is provided with an arc convex at the two ends up and down of locked groove porch.The convenient preceding pterygoid hamulus that arranges of arc convex inserts locked groove, has played the effect of guiding, and the 2nd, after in the current pterygoid hamulus insertion locked groove, pin preceding pterygoid hamulus, prevent its locked groove that slips away.

In order to prevent that the bracket lid from dropping out outside the supporter groove, the integral width of pterygoid hamulus was greater than the spacing between two trough rims before the bracket lid added, and described preceding pterygoid hamulus is trough rim institute backstop, and the sliding scale of preceding pterygoid hamulus is limited in the chute of next-door neighbour's arch wire groove.

For the ease of processing, as preferably, the thickness of preceding pterygoid hamulus is identical with the thickness of draw runner.

Adopted design philosophy of the present invention and the beneficial effect of technique scheme to be:

The present invention adopts the slide lock tabs structure; bracket covers in chute and normally slides; chute both sides on arch wire groove right side are provided with the locked groove that cooperates with preceding pterygoid hamulus; and the height of locked groove porch is less than the thickness of preceding pterygoid hamulus; as long as shift the bracket lid onto the end; the preceding pterygoid hamulus of bracket lid makes locked groove produce deformation during through the locked groove entrance, after inserting in the locked groove fully, utilizes the height of locked groove entrance to reach the purpose of self-locking less than the thickness of preceding pterygoid hamulus.

Adopted bracket structure of the present invention, locked groove is in supporter groove inside, can increase the intensity of supporter groove, significantly dwindles the size of supporter groove; And simplified the structure of bracket lid, pterygoid hamulus can be realized that just the bracket cover lock is fixed and hook the dual-use function that trough rim prevents bracket lid disengaging supporter groove before only depending on, and is very practical.

Supporter groove of the present invention and bracket lid are made simple, can adopt line cutting once-forming, and be easy to operate.When designing simultaneously the bracket lid is all put into supporter groove, flexible distortion again can not skid off easily, and is safe and reliable.Removed the troublesome operation of steel ligature in the clinical practice from.Simultaneously can as steel ligature or ligation rubber ring, directly not force in arch wire again, so can not influence the normal movement of arch wire in the orthodontic treatment process, make the orthodontic treatment better effects if.

Description of drawings

Fig. 1 is the structural representation of supporter groove of the present invention;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is the plan structure sketch map of Fig. 1;

Fig. 4 is the structural representation of bracket lid;

Fig. 5 is that the A of Fig. 4 is to view;

Fig. 6 covers the sketch map of open mode in supporter groove for bracket;

Fig. 7 covers the sketch map of closure state in supporter groove for bracket.

The specific embodiment

The specific embodiment of the present invention is as follows:

Embodiment: a kind of self-locking bracket, shown in Fig. 1～3, comprise the supporter groove 2 with net bottom 1 and arch wire groove 6, arch wire groove 6 both sides are provided with the work wing 3,4, and with the arch wire groove 6 crossing bracket mouths 10 that are provided with, bracket mouth 10 is arranged in a crossed manner with arch wire groove 6 on supporter groove 2, bracket mouth 10 and arch wire groove 6 wing 3,4 of will working is divided into four fritters that separate, as shown in Figure 1 and Figure 2, these bracket mouth 10 lateral symmetry are offered the chute 9 that wired cutting forms, and vertically are provided with trough rim 13 in chute 9.

As Fig. 6, shown in Figure 7, in chute 9, slide and be provided with bracket lid 11, as Fig. 4, shown in Figure 5, described bracket covers 11 both sides and is provided with the draw runner 15 that cooperates with chute 9, cover between two draw runners 15 of 11 front ends at bracket and to be provided with breach 50, the front end in draw runner 15 outsides is provided with the preceding pterygoid hamulus 12 in the same plane with draw runner; Shown in Fig. 1～3, the trough rim of the chute both sides in arch wire groove 6 left sides be provided with described before the saturating dead slot 5 that cooperates of pterygoid hamulus 12, the trough rim of the chute both sides on arch wire groove 6 right sides be provided with described before pterygoid hamulus 12 that cooperate and can produce the locked groove 8 of strain under external force, the height of locked groove 8 porch is less than the thickness of preceding pterygoid hamulus 12, and the height of locked groove 8 inside is more than or equal to the thickness of preceding pterygoid hamulus 12; Described dead slot 5 all is close to arch wire groove 6 with locked groove 8; Specifically, respectively be provided with an arc convex 18 at the two ends up and down of locked groove 8 porch.In the present embodiment, the spacing between two arc convex 18 is that the height of locked groove 8 porch is 0.28mm, and the thickness of preceding pterygoid hamulus 12 is 0.3mm, and the height of locked groove 8 inside is 0.34mm.

During concrete the application, two draw runners 15 with specific purpose tool compression bracket lid 11, pushing and make preceding pterygoid hamulus 12 to escape trough rim 13 from chute 9 tops enters in the supporter groove 2, again with bracket lid 11 duties that are expanded to as shown in Figure 4, at this moment, preceding pterygoid hamulus 12 is 13 backstops of trough rim, and the sliding scale of preceding pterygoid hamulus 12 is limited in the chute of next-door neighbour's arch wire groove 6.

When bracket lid 11 slides into open position, as shown in Figure 6, draw runner 15 is in the runner region in arch wire groove 6 left sides and the rear end of draw runner 15 skids off outside the supporter groove 2, and preceding pterygoid hamulus 12 is hided in saturating dead slot 5 and is hooked the trough rim 13 in arch wire groove 6 left sides, and arch wire groove 6 can be put into or take out to arch wire 60 easily.When bracket lid 11 slides into make position, as shown in Figure 7, pterygoid hamulus 12 pushes in the locked groove 8 before described, because locked groove 8 porch are narrower, pterygoid hamulus 12 is limited in locked groove 8 inside before making, so far, bracket lid 11 is locked in the supporter groove 2, arch wire 60 just is fixed in the arch wire groove 6, and arch wire 60 can be free to slide at arch wire groove 6.And after bracket lid entered supporter groove, a small amount of part was exposed outside in the middle of having only, so only useful tool just can be opened.

Claims

1. self-locking bracket, comprise the supporter groove with arch wire groove, arch wire groove both sides are provided with the work wing, it is characterized in that: on supporter groove, intersect with the arch wire groove and be provided with the bracket mouth, bracket mouth and the arch wire groove wing of will working is divided into four fritters, this bracket mouth lateral symmetry is offered the chute that wired cutting forms, in chute, vertically be provided with trough rim, in chute, slide and be provided with the bracket lid, described bracket lid both sides are provided with the draw runner that cooperates with chute, between two draw runners of bracket lid front end, be provided with breach, the front end of draw runner is provided with the preceding pterygoid hamulus to the draw runner lateral expansion, the trough rim of the chute both sides in arch wire groove left side be provided with described before the saturating dead slot that cooperates of pterygoid hamulus, the trough rim of the chute both sides on arch wire groove right side be provided with described before cooperate and the locked groove that can produce strain of pterygoid hamulus, the height of locked groove porch is less than the thickness of preceding pterygoid hamulus, and the height of locked groove inside is more than or equal to the thickness of preceding pterygoid hamulus; Described dead slot and locked groove all are close to the arch wire groove; When the bracket lid was open mode, preceding pterygoid hamulus was hided in saturating dead slot and preceding pterygoid hamulus hooks the trough rim of the chute both sides in arch wire groove left side, thereby exposes the arch wire groove; When the bracket lid is closed condition, the bracket lid leaves dead slot and mobile to the right by arch wire groove left side under external force, the preceding pterygoid hamulus of bracket lid makes locked groove produce deformation when passing through the locked groove entrance, after inserting in the locked groove fully, utilize the height of locked groove entrance to reach the purpose of self-locking less than the thickness of preceding pterygoid hamulus.

2. self-locking bracket according to claim 1, it is characterized in that: the two ends up and down in the locked groove porch respectively are provided with an arc convex.

3. self-locking bracket according to claim 1 is characterized in that: pterygoid hamulus is trough rim institute backstop before described, and the sliding scale of preceding pterygoid hamulus is limited in the chute of next-door neighbour's arch wire groove.

4. self-locking bracket according to claim 1, it is characterized in that: the thickness of preceding pterygoid hamulus is identical with the thickness of draw runner.