CN211723487U

CN211723487U - Self-ligating bracket with eccentric double needles

Info

Publication number: CN211723487U
Application number: CN201922272528.5U
Authority: CN
Inventors: 陈建文
Original assignee: Jinhua Xinya Machinery Manufacturing Co ltd
Current assignee: Jinhua Xinya Machinery Manufacturing Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-23
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses to the drawback that the self-locking slider is opened by the tongue touching easily in the orthodontic bracket in prior art's use in the orthodontic bracket, provide a two eccentric self-locking bracket, belong to orthodontic bracket technical field, hold in the palm the cell body and set up the support groove bottom plate in support cell body below, support and be provided with the slot on the cell body, sliding connection has the self-locking slider that can cover slot upper end opening on the support cell body, self-locking slider is equipped with two locking grooves towards the slot setting towards the face of holding in the palm the cell body, locking groove includes that bar groove and two set up the constant head tank at bar groove both ends respectively, and the cross-section of constant head tank is circular structure, and the angle that becomes between two bar grooves is 0.5-1.5, be equipped with two elasticity needles that correspond with two locking grooves respectively on the support cell body, two elasticity needle outer ends imb. The utility model discloses a self-locking slider has good auto-lock performance, can not open by accident, can avoid the arch wire to drop from the ditch inslot, avoids influencing the correction effect.

Description

Self-ligating bracket with eccentric double needles

Technical Field

The utility model belongs to the technical field of orthodontic bracket, concretely relates to eccentric self-ligating bracket of duplex.

Background

The orthodontic bracket is a necessary appliance for straightening teeth, and can achieve a good straightening effect on tooth reshaping. In order to facilitate the fixing and locking of the arch wire, the existing tongue side orthodontic bracket is mostly set to be self-locking, namely, a self-locking sliding block which can cover the upper end of the groove is directly arranged on the bracket body, the existing self-locking bracket is used, the orthodontic bracket is frequently touched by the tongue of a patient and is easily opened, so that the arch wire is separated from the groove, the correction effect is influenced, and the dentist is required to fix the arch wire again.

Disclosure of Invention

The utility model discloses to the drawback that the self-locking slider is opened by the tongue touching easily in the use of orthodontic bracket among the prior art, provide an eccentric self-locking bracket of duplex, this self-locking slider is difficult for opening after closing the slot lid, makes the arch wire be difficult for breaking away from the slot.

The invention aims to be realized by the following technical scheme: a double-needle eccentric self-ligating bracket comprises a bracket body and a bracket bottom plate arranged below the bracket body, wherein a groove is formed in the bracket body, a self-ligating slide block capable of covering an opening at the upper end of the groove is connected to the bracket body in a sliding mode, two locking grooves arranged towards the groove are formed in the surface, facing towards the bracket body, of the self-ligating slide block, each locking groove comprises a strip-shaped groove and two positioning grooves respectively arranged at two ends of the strip-shaped groove, the cross section of each positioning groove is of a circular structure and is communicated with the strip-shaped groove, an angle formed between the two strip-shaped grooves is 0.5-1.5 degrees, the diameter of the cross section of each positioning groove is larger than the width of the strip-shaped groove, one side face of each strip-shaped groove is tangent to the side wall of each positioning; the support groove body is provided with two elastic needles which correspond to the two locking grooves respectively, the outer ends of the two elastic needles are embedded into the two locking grooves respectively, the outer diameter of each elastic needle is larger than the width of the corresponding strip-shaped groove and not larger than the inner diameter of the corresponding positioning groove, and when the elastic needles are embedded into the corresponding positioning grooves in the outer ends of the corresponding strip-shaped grooves, the elastic needles are in a vertical state.

In the above scheme, when the elastic needle is embedded into the positioning groove at the outer end of the strip-shaped groove, the elastic needle is in a vertical state, the self-locking slider covers the groove, the arch wire installed in the groove cannot be separated from the groove, the arch wire can only be separated from the groove when the self-locking slider is opened, the outer end of the elastic needle needs to enter the strip-shaped groove from the positioning groove at the outer end of the strip-shaped groove and then enter the positioning groove at the inner end of the strip-shaped groove, because the outer diameter of the elastic needle is larger than the width of the strip-shaped groove, the elastic needle can deform in the process of entering the strip-shaped groove from the positioning groove, at the moment, the self-locking slider needs to be pushed by certain external force to move to enable the limiting groove to enter the strip-shaped groove, meanwhile, because the angle formed between the two strip-shaped grooves is 0.5-1.5 degrees, when the outer ends of, the deformation of the elastic needle is gradually increased, and the self-locking sliding block can be completely opened only by overcoming larger acting force, so that the closed self-locking sliding block is not easy to open, and the arch wire installed in the groove is not easy to separate from the groove.

Preferably, the angle between two of said strip-shaped grooves is 1 °. Through many times of experiments, when the angle is 1 between two bar grooves, when the auto-lock slider lid closed on the slot, the lid closed comparatively firmly, and can not influence the normal removal of auto-lock slider on holding in the palm the cell body.

Preferably, the distance between the positioning grooves at the inner ends of the two strip-shaped grooves is smaller than the distance between the positioning grooves at the outer ends of the two strip-shaped grooves. At the moment, the two strip-shaped grooves are of an outer splayed structure.

Preferably, the bracket body is provided with a mounting groove for mounting the self-locking sliding block, guide grooves are respectively arranged on two sides of the mounting groove, strip-shaped sliding blocks matched with the guide grooves are respectively and fixedly connected to two sides of the self-locking sliding block, and the strip-shaped sliding blocks on two sides of the self-locking sliding block are respectively embedded into the two guide grooves. The bar-shaped sliding block is matched with the guide groove, and the sliding connection between the self-locking sliding block and the supporting groove body can be realized.

Preferably, the end face, facing the bracket body, of the self-locking sliding block is fixedly connected with a strip-shaped limiting block arranged towards the groove, the bracket body is provided with a strip-shaped limiting groove arranged towards the groove, and the strip-shaped limiting block is embedded into the strip-shaped limiting groove. After the orthodontic bracket in the oral cavity is used for a period of time, the self-locking sliding block and the bracket body are easy to move transversely, and the arrangement of the strip-shaped limiting groove and the strip-shaped limiting block can transversely limit the self-locking sliding block, so that the self-locking sliding block and the bracket body are not easy to move transversely relative to each other.

Preferably, the strip-shaped limiting groove is located at the bottom of one of the guide grooves, the guide groove is communicated with the strip-shaped limiting groove, and the strip-shaped limiting block is fixedly arranged on the left side of the lower end of the self-locking sliding block. The arrangement of the elastic needle and the locking groove cannot be influenced by the strip-shaped limiting block arranged in the way.

Preferably, the elastic needle is of a circular tube-shaped structure. The elastic needle with the circular tube-shaped structure is easier to deform, so that the elastic needle can slide more smoothly between the strip-shaped groove and the positioning groove.

Preferably, the bottom of the mounting groove is provided with two vertical holes, the two elastic needles are respectively arranged in the two vertical holes, and the outer ends of the elastic needles protrude outwards relative to the bottom of the mounting groove.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a self-locking slider has good auto-lock performance, can not open by accident, can avoid the arch wire to drop from the ditch inslot, avoids influencing the correction effect.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the bracket body with the elastic needle mounted thereon;

FIG. 3 is a perspective view of the self-locking slide;

FIG. 4 is a bottom view of the self-locking slide;

the labels in the figure are: 1. the self-locking bracket comprises a bracket body, 2 parts of a bracket bottom plate, 3 parts of a groove, 4 parts of a self-locking sliding block, 5 parts of a mounting groove, 6 parts of a guide groove, 7 parts of a strip-shaped sliding block, 8 parts of a strip-shaped limiting block, 9 parts of a strip-shaped limiting groove, 10 parts of a strip-shaped groove, 11 parts of a positioning groove, 12 parts of a vertical hole, 13 parts of an elastic needle, 14 parts of a stress surface.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1-4, the self-ligating bracket with the eccentric double needles comprises a bracket body 1 and a bracket bottom plate 2 fixedly arranged below the bracket body 1, wherein a groove 3 is arranged on the bracket body 1, a self-ligating slide block 4 capable of covering an opening at the upper end of the groove 3 is connected on the bracket body 1 in a sliding manner, a mounting groove 5 for mounting the self-ligating slide block 4 is arranged on the bracket body 1, guide grooves 6 are respectively arranged on two sides of the mounting groove 5, strip-shaped slide blocks 7 matched with the guide grooves 6 are respectively fixedly connected on two sides of the self-ligating slide block 4, and the strip-shaped slide blocks 7 on two sides of the self-ligating slide block 4 are respectively embedded. The end face of the self-locking sliding block 4 facing the supporting groove body 1 is fixedly connected with a bar-shaped limiting block 8 arranged towards the groove 3, the supporting groove body 1 is provided with a bar-shaped limiting groove 9 arranged towards the groove 3, and the bar-shaped limiting block 8 is embedded into the bar-shaped limiting groove 9. The strip-shaped limiting groove 9 is located at the bottom of one of the guide grooves 6, the guide groove 6 is communicated with the strip-shaped limiting groove 9, and the strip-shaped limiting block 8 is fixedly arranged on the left side of the lower end of the self-locking sliding block 4. The face of auto-lock slider 4 towards holding in the palm cell body 1 is equipped with two locking grooves that set up towards slot 3, the locking groove includes bar groove 10 and two constant head tanks 11 that set up respectively at bar groove 10 both ends, and the cross-section of constant head tank 11 is circular structure, constant head tank 11 and bar groove 10 intercommunication, and the angle that becomes between two bar grooves 10 is 1, and the diameter in constant head tank 11 cross-section is greater than the width in bar groove 10, a side and the 11 lateral walls of constant head tank of bar groove 10 are tangent, and the distance between the constant head tank 11 of two bar grooves 10 the inner is less than the distance between the constant head tank 11 of two bar grooves 10 outer ends. 5 bottoms in mounting groove 5 are equipped with two perpendicular holes 12, all are equipped with the elastic needle 13 of a pipe tubular structure in each perpendicular hole 12, and the elastic needle 13 outer end outwards bulges for 5 bottoms in mounting groove, and two elastic needle 13 outer ends imbed two locking inslots respectively, and the external diameter of elastic needle 13 equals the internal diameter of constant head tank 11, and when the constant head tank 11 of elastic needle 13 embedding bar groove 10 outer end, elastic needle 13 is vertical state. And a stress surface 14 is arranged at one end of the self-locking sliding block 4 close to the groove 3, and when the self-locking sliding block 4 covers the groove 3, a gap is reserved between the bracket body 1 and the stress surface 14 on the self-locking sliding block 4.

The utility model discloses a self-locking slider 4 is opening the in-process, the elastic needle 13 outer end need get into bar groove 10 from the constant head tank 11 of bar groove 10 outer end, get into the constant head tank 11 of bar groove 10 inner again, because the external diameter of elastic needle 13 is greater than the width of bar groove 10, so in the process that elastic needle 13 gets into bar groove 10 from constant head tank 11, elastic needle 13 can take place deformation, must have certain exogenic action to promote self-locking slider 4 to move at this moment and just can make constant head tank 11 get into bar groove 10, simultaneously, because the angle between two bar grooves 10 is 0.5-1.5, when two elastic needle 13 outer ends move in two bar grooves 10 respectively, can be close to gradually between two elastic needle 13 outer ends, make the deformation of elastic needle 13 increase gradually, self-locking slider 4 need overcome bigger effort and just can open completely, so closed self-locking slider 4 is difficult to open, the archwire installed in the slot 3 is also not easily disengaged from the slot 3. When the self-locking sliding block 4 needs to be opened, a dental tool needs to penetrate through the interval between the bracket body 1 and the stress surface 14 on the self-locking sliding block 4 to support the stress surface 14 on the self-locking sliding block 4, and the self-locking sliding block 4 is pushed outwards.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A double-needle eccentric self-ligating bracket comprises a bracket body and a bracket bottom plate arranged below the bracket body, wherein a groove is formed in the bracket body, and a self-ligating slide block capable of covering an opening at the upper end of the groove is connected to the bracket body in a sliding manner; the support groove body is provided with two elastic needles which correspond to the two locking grooves respectively, the outer ends of the two elastic needles are embedded into the two locking grooves respectively, the outer diameter of each elastic needle is larger than the width of the corresponding strip-shaped groove and not larger than the inner diameter of the corresponding positioning groove, and when the elastic needles are embedded into the corresponding positioning grooves in the outer ends of the corresponding strip-shaped grooves, the elastic needles are in a vertical state.

2. The twin needle eccentric self-ligating bracket of claim 1, wherein the angle between two of said slots is 1 °.

3. The twin needle eccentric self-ligating bracket of claim 1 or 2, wherein the distance between the positioning grooves at the inner ends of the two strip-shaped grooves is smaller than the distance between the positioning grooves at the outer ends of the two strip-shaped grooves.

4. The twin needle eccentric self-ligating bracket of claim 3, wherein the bracket body is provided with a mounting groove for mounting a self-ligating slide block, two sides of the mounting groove are respectively provided with a guide groove, two sides of the self-ligating slide block are respectively fixedly connected with a strip-shaped slide block matched with the guide grooves, and the strip-shaped slide blocks at two sides of the self-ligating slide block are respectively embedded into the two guide grooves.

5. The twin-needle eccentric self-ligating bracket of claim 4, wherein a strip-shaped limiting block towards the groove is fixedly connected to the end surface of the self-ligating slide block towards the bracket body, a strip-shaped limiting groove towards the groove is formed in the bracket body, and the strip-shaped limiting block is embedded into the strip-shaped limiting groove.

6. The twin-needle eccentric self-ligating bracket of claim 5, wherein the strip-shaped limiting groove is located at the bottom of one of the guide grooves, the guide groove is communicated with the strip-shaped limiting groove, and the strip-shaped limiting block is fixedly arranged at the left side of the lower end of the self-ligating slide block.

7. The twin needle eccentric self-ligating bracket of claim 1, wherein the resilient needle is of a round tube configuration.

8. The self-ligating bracket of claim 4, wherein the bottom of the slot is provided with two vertical holes, the two resilient pins are disposed in the two vertical holes, and the outer ends of the resilient pins protrude outward relative to the bottom of the slot.