WO2019091364A1 - 托槽与托槽自锁方法 - Google Patents

托槽与托槽自锁方法 Download PDF

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Publication number
WO2019091364A1
WO2019091364A1 PCT/CN2018/114091 CN2018114091W WO2019091364A1 WO 2019091364 A1 WO2019091364 A1 WO 2019091364A1 CN 2018114091 W CN2018114091 W CN 2018114091W WO 2019091364 A1 WO2019091364 A1 WO 2019091364A1
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WO
WIPO (PCT)
Prior art keywords
elastic member
bracket
groove
cover body
notch
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PCT/CN2018/114091
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English (en)
French (fr)
Inventor
吉利
Original Assignee
广州欧欧医疗科技有限责任公司
吉利
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Application filed by 广州欧欧医疗科技有限责任公司, 吉利 filed Critical 广州欧欧医疗科技有限责任公司
Publication of WO2019091364A1 publication Critical patent/WO2019091364A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket
    • A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2204/00—Features not otherwise provided for

Definitions

  • the invention designs a fixed orthodontic technique and a correction field of teeth, and particularly relates to a bracket cover self-locking structure and a bracket and a bracket correction system.
  • the bracket is an important component of the fixed orthodontic technique. It is an appliance for correcting the malformation of the teeth.
  • the archwire applies various types of orthodontic force to the teeth through the brackets.
  • the main function of the bracket is to fix the archwire. Therefore, the arch wire can play a better role and transmit the corrective force, thereby controlling the three-dimensional movement of the tooth and achieving the purpose of orthodontic treatment.
  • the bracket cover is used to fix the archwire, and the bracket structure is locked and locked by the locking structure.
  • the existing bracket cover locking structure is formed by locking a cover at the bottom of the cover plate by using an external pin to fix the cover.
  • the groove of the existing bracket cover locking structure is composed of one or two escape holes, a sliding groove and a pin, and the pin is a solid pin or a C-shaped hollow pin. Since the locking structure is narrow and long, the sliding groove is easy to wear during the process of opening the cover plate, and the elastic arm wall is short, which causes the self-locking force of the cover to decrease, so that the cover plate is easily or automatically opened, thereby losing the pair. The ability to fix the archwire. Moreover, the existing bracket cover locking structure cannot adjust the magnitude of the locking force arbitrarily, and cannot provide a large self-locking force, which affects the treatment effect.
  • the present invention provides a bracket, which can form a large locking force by providing an elastic member having a notch, and can realize different self-locking between different brackets. force.
  • a bracket comprising a bracket body, a cover body, an elastic member and a bottom plate; the bracket body is provided with a penetrating archwire slot; the bottom plate is disposed at the bottom of the bracket body; and the bottom surface of the cover body Cooperating with the top of the bracket body for opening or closing the archwire slot; the bottom of the cover body is provided with a sliding protrusion; the elastic member is disposed on the bracket body, and the elastic member has a gap The sliding protrusion is in contact with the elastic member, and the sliding protrusion presses the elastic member when the cover body slides.
  • the elastic member includes an outer wall that is bent into a "C" shape having the notch, the center of the outer wall being a central portion penetrating, the outer wall having an upper end at the notch and Lower end.
  • the upper end and the lower end are planes that are flush with each other or that are flush with each other or are respectively crimped inward.
  • the archwire slot divides the bracket body into a first end portion and a second end portion, the cover body is slidably engaged with the first end portion, and the first end portion is opened at the top There is a T-shaped groove, and a bottom of the T-shaped groove is provided with a placement hole, and the elastic member is placed in the placement hole.
  • the placement hole extends through the bottom of the bracket body, and the bottom plate is provided with a boss that cooperates with the placement hole.
  • a escaping bit is provided at the placement hole.
  • a groove is disposed on a bottom surface of the cover body, the groove includes an opening portion, the sliding protrusion and a closing portion, and a side of the opening portion is provided with a blocking wall, and a portion close to the closing portion The side is provided with a closed wall.
  • the width of the groove at the narrowest portion is not smaller than the dimension of the elastic member in the sliding direction.
  • the sliding protrusion is disposed at a groove bottom of the groove or at a sliding side of the groove.
  • the size of the gap can be adjusted.
  • Another object of the present invention is to provide a self-locking method for a bracket, which is characterized in that: the bracket is used; when the cover is in the closed position or the open position, the elastic member is in a free state; when the cover slides The sliding convex pressing elastic member causes the notch of the elastic member to be close to or in contact with each other.
  • the working principle of the self-locking of the bracket cover of the present invention is as follows: the elastic member is in a free state when the cover body is in the closed position and the open position. When the archwire slot needs to be opened, the cover body is slid. Since the elastic member encounters the sliding convexity on the cover body during the sliding process of the cover body, the sliding convexity blocks the sliding track of the elastic member, so that the cover body can act as a sliding convex at this time. The lower lock is not able to slide, and the archwire slot is closed; then the force is applied to the cover body, so that the sliding convexity of the cover body and the elastic member are pressed, forcing the elastic member to deform, and the elastic member is directed against the pressure.
  • the direction of the notch is curved.
  • the elastic member accumulates energy and deforms under the action of the extrusion; the width of the narrowest groove on the cover body is not less than the sliding direction dimension of the elastic member, and the avoidance is provided by the bracket body.
  • the position of the elastic member is not squeezed into the bracket main body and the cover body during the deformation process, thereby avoiding the damage of the elastic member; after the sliding convex portion, the elastic member begins to return to the original state under the action of the stress, and the elastic member is released. Yes, the archwire slot opens until it is completely slid by the sliding projection.
  • the size of the notch can be adjusted, thereby realizing the adjustment of the self-locking force, changing the difficulty of setting the strength of the traditional orthodontic bracket bracket main body, and realizing different self-locking force between different brackets of different tooth positions;
  • bracket body Since the bracket body is provided with a escaping position, the elastic member is not pressed into the bracket body and the cover body during the deformation process, thereby avoiding damage of the elastic member.
  • the elastic member is deformed after being compressed. Due to the setting of the notch, when the end portions of the notch of the elastic member are in contact, the elastic value is sharply increased, so that the cover of the bracket is firmly fixed. .
  • Figure 1 is a perspective exploded view of the bracket structure of the present invention
  • FIG. 2 is a perspective view showing the main structure of the bracket bracket of the present invention.
  • FIG. 3 is a schematic structural view of a bracket cover body according to a first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a bracket cover body according to a second embodiment of the present invention.
  • FIG. 5 is a schematic structural view of an elastic member according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of an elastic member according to another embodiment of the present invention.
  • Figure 7 is a side elevational view of the bracket when the elastic member of the present invention is in a free state
  • Figure 8 is a side elevational view of the bracket when the elastic member of the present invention is in a compressed state
  • Figure 9 is a front elevational view of the bracket when the elastic member is placed on the side of the second embodiment of the present invention.
  • Figure 10 is a schematic structural view of three different shapes of elastic members of the present invention.
  • Figure 11 is a graph showing the trend of the force magnitude of the elastic member in the compression process of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an exploded exploded view of the bracket includes a bracket body 100 , a cover body 200 , an elastic member 300 , and a bottom plate 400 .
  • the bottom plate 400 is provided with a boss 401 .
  • the top of the bracket body 100 is provided with an archwire slot 101.
  • the archwire slot 101 divides the bracket body 100 into a first end portion 102 and a second end portion 103.
  • the top end of the first end portion 102 is provided with a T.
  • the groove 106 is provided with a placement hole 104 at the bottom of the T-shaped groove 106.
  • the placement hole 104 extends through the bottom end of the bracket body 100, and is provided from the side of the placement hole 104 perpendicular to the groove direction of the archwire groove 101.
  • the bottom of the groove begins to extend to a relief position 105 inside the placement hole 104.
  • the cover body 200 is provided with a groove 210 on the bottom surface of the cover body 200 .
  • the groove 210 includes an opening portion 201 , a sliding protrusion 202 and a closing portion 203 , and a blocking wall is disposed on a side close to the opening portion 201 .
  • a closing wall 204 is provided on a side close to the closing portion 203.
  • the elastic member 300 includes an outer wall 303 , and the outer wall 303 is bent into a “C” shape.
  • the center of the outer wall 303 is formed as a central portion 302 .
  • the outer wall 303 of the elastic member 300 has a notch 301 .
  • the notch 301 does not close the outer wall 303 in a free state, and the outer wall 303 has a respective upper end 311 and lower end 312 at the notch 301.
  • the cover body 200 is slidably engaged by the T-shaped groove 106 on the bracket body 100 to open and close the archwire slot 101 of the cover body 200; the elastic member 300 is placed on the placement hole 104 of the bracket body 100, At the same time, since at least one side of the placement hole 104 is a flat surface, at least one surface of the elastic member 300 is planar, and the two planes can cooperate with each other to achieve circumferential positioning, and then the bracket body 401 is placed on the bracket body 401 through the boss 401 of the bottom plate 400. The placement hole 104 is blocked to position the elastic member 300 in the longitudinal direction.
  • FIG. 7 shows the state of the elastic member 300 in the closed position and the open position of the cover body 200, and the elastic member 300 is in a free state.
  • the cover body 200 is slid. Since the elastic member 300 encounters the sliding protrusion 202 on the cover body during the sliding process of the cover body 200, the sliding protrusion 202 blocks the sliding track of the elastic member 300, so this time The cover body 200 can be tightly locked and cannot slide under the action of the sliding protrusion 202.
  • the archwire slot 101 is closed; and the force is applied to the cover body 200, so that the sliding protrusion 202 of the cover body 200 and the elastic member 300 are squeezed.
  • the width of the narrowest portion of 210 is not less than the sliding direction dimension of the elastic member 300, and due to the escape position 105 provided on the bracket main body 100, the elastic member 300 is not pressed to the bracket main body 100 and the cover body 200 during the deformation process.
  • the damage of the elastic member 300 is avoided; after passing through the sliding protrusion 202, the elastic member starts to return to the original state under the action of the stress, and the elastic member 300 releases the energy until the arching groove 101 is opened completely after passing through the sliding protrusion 202.
  • the wall thickness of the outer wall 303 of the elastic member 300 is adjustable, and different self-locking forces are achieved by adjusting the wall thickness of the outer wall 303. It is also possible to adjust the self-locking force by adjusting the height of the elastic member 300. It is also possible to achieve different strengths by adjusting the size of the notch 301.
  • the notch 301 is adjusted to be small, and the upper end 311 of the notch 301 of the elastic member 300 is attached to the lower end 312 when the deformation is performed.
  • the central portion 302 is reduced in area, the entire elastic member 300 forms a closed loop structure, so that a large self-locking force can be formed.
  • the self-locking force adjustment by these methods changes the difficulty of setting the strength of the traditional orthodontic bracket bracket body, and can realize different self-locking forces between different brackets of different tooth positions.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the archwire slot 101 is in the closed position, and the elastic member 300 is disposed laterally.
  • the sliding protrusion 202 of the cover body 200 is disposed at the top end of the cover body 200.
  • the sliding protrusion 202 and the elastic member are The pressing of 300, the downward pressure applied to the elastic member 300, forces the upper end 311 and the lower end 312 of the notch 301 of the elastic member 300 to approach each other, and the principle is the same as that of the first embodiment.
  • the elastic members 300 of the three different deformations are in a natural state, a compression process state or a compressed state, wherein the A diagram is in three states, a natural state, a compression process state, a compressed state, and after compression.
  • the elastic member 300 is in a closed loop state and can withstand a large force without damage; in the figure B, the upper end 311 and the lower end 312 are both inclined surfaces, and the opening directions are flush with each other, and are flush with each other after the compression contact, and the force is further increased.
  • Uniform; C is the compression of the two ends of the notch, and the curl is rolled inward, and the energy is stored at this time.
  • FIG. 11 a trend diagram of the magnitude of the force of the elastic member 300 of the present invention obtained during the compression process, as can be seen from the figure, during the compression of the elastic member 300, when the notch 301 of the elastic member 300 is on both sides When the contact is not in contact, the magnitude of the force received by the elastic member 300 is relatively gentle. However, when the two sides of the notch 301 are in contact, the magnitude of the force received by the elastic member 300 is abruptly changed, and the magnitude of the increase in the magnitude of the force is sharply increased.
  • the size of the notch can be adjusted, thereby realizing the adjustment of the self-locking force, changing the difficulty of setting the strength of the traditional orthodontic bracket bracket main body, and realizing different self-locking force between different brackets of different tooth positions;
  • bracket body Since the bracket body is provided with a escaping position, the elastic member is not pressed into the bracket body and the cover body during the deformation process, thereby avoiding damage of the elastic member.
  • the elastic member is deformed after being compressed. Due to the setting of the notch, when the end portions of the notch of the elastic member are in contact, the elastic value is sharply increased, so that the cover of the bracket is firmly fixed. .

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

一种托槽，包括托槽主体（100）、盖体（200）、弹性件（300）和底板（400）；托槽主体（100）上设置有贯穿的弓丝槽（101）；底板（400）设置于托槽主体（100）底部；盖体（200）与托槽主体（100）顶部滑动配合，用于打开或关闭弓丝槽（101）；盖体（200）上设置有滑动凸（202），弹性件（300）设置于托槽主体（100）上；滑动凸（202）与弹性件（300）接触，当盖体（200）滑动时，滑动凸（202）挤压弹性件（300）；弹性件（300）具有缺口（301）。缺口（301）的大小可以调节，从而实现自锁力的调节。

Description

托槽与托槽自锁方法 技术领域
本发明设计固定矫治技术及牙齿的矫正领域，特别是涉及一种托槽盖体自锁结构与托槽及托槽矫正系统。
背景技术
托槽(bracket)是固定矫治技术的重要部件，是矫正牙齿排列畸形用的矫治器，弓丝通过托槽而对牙施以各种类型的矫治力，托槽的主要作用在于固定弓丝，从而使弓丝更好的发挥作用，传递矫治力，以此控制牙齿三维的移动，达到正畸矫治的目的。
托槽盖板是用来固定弓丝的，利用锁定结构对托槽盖板进行锁紧定位。
现有的托槽盖板锁定结构，都是通过在盖板底部开一凹槽，利用外部的销固定对盖板实现定位锁紧。现有托槽盖板锁定结构的凹槽是由一个或两个避让孔、一个滑动槽以及销柱组成，销柱为实心销或C型空心销。这种锁定结构由于滑动槽较窄且长，在开盖板过程中容易磨损销柱，且弹力臂壁较短，导致盖板自锁力下降，使得盖板极易或自动打开，从而失去对弓丝的固定能力。而且现有的托槽盖板锁定结构不能随意调节锁紧力度的大小，不能提供较大的自锁力，影响治疗效果。
发明内容
针对现有技术存在的不足，本发明提供了一种托槽，其通过设置具有缺口的弹性件，能够形成较大的锁紧力，并可以实现不同牙位不同托槽间设置不同的自锁力。
为了实现上述目的，本发明是通过如下的技术方案来实现：
一种托槽，包括托槽主体、盖体、弹性件和底板；所述托槽主体上设置有 一贯穿的弓丝槽；所述底板设置于所述托槽主体底部；所述盖体的底面与所述托槽主体的顶部活动配合，用于打开或关闭弓丝槽；所述盖体的底部设置有滑动凸；所述弹性件设置于所述托槽主体上，所述弹性件具有缺口，所述滑动凸与所述弹性件接触，当所述盖体滑动时，所述滑动凸挤压弹性件。
在其中一个实施例中，所述弹性件包括外壁，外壁弯折成具有所述缺口的“C”型形状，所述外壁中央为贯穿的中央部，所述外壁在所述缺口处具有上端和下端。
在其中一个实施例中，所述上端和所述下端为相互平齐的平面或相互平齐的斜面或分别向内卷曲。
在其中一个实施例中，所述弓丝槽将所述托槽主体分为第一端部和第二端部，所述盖体与第一端部滑动配合，所述第一端部顶部开设有T型槽，所述T型槽底部设置有放置孔，所述弹性件放置于所述放置孔中。
在其中一个实施例中，所述放置孔贯穿到托槽主体底部，所述底板上设置有与所述放置孔配合的凸台。
在其中一个实施例中，在放置孔设置有避让位。
在其中一个实施例中，在所述盖体底面设置有凹槽，所述凹槽包括打开部、所述滑动凸以及关闭部，靠近打开部的一侧设有阻挡壁，靠近关闭部的一侧设有关闭壁。
在其中一个实施例中，所述凹槽最窄处的宽度不小于弹性件的沿滑动方向的尺寸。
在其中一个实施例中，所述滑动凸设置于所述凹槽的槽底或设置于所述凹槽一滑动侧边。
在其中一个实施例中，所述缺口的大小能够调整。
本发明的另一目的在于提供一种托槽的自锁方法，其特征在于：使用上述的托槽；盖体处于关闭位置或打开位置时，弹性件处于自由状态；当所述盖体滑动时，滑动凸挤压弹性件，使得弹性件的缺口两侧靠拢或接触。
本发明托槽盖体自锁的工作原理如下：在盖体处于关闭位置与打开位置时的弹性件处于自由状态。当需要打开弓丝槽时，滑动盖体，由于弹性件在盖体滑动过程中遇到盖体上的滑动凸，滑动凸阻挡了弹性件的滑动轨迹，所以这时候盖体能在滑动凸的作用下被紧紧的锁住不能滑动，此时弓丝槽关闭；再施加力给盖体，致使盖体的滑动凸与弹性件产生挤压，迫使弹性件产生变形，弹性件在压力作用下向着缺口方向弯曲，此时弹性件蓄能，同时在挤压的作用下产生变形；盖体上的凹槽最窄处的宽度不小于弹性件的滑动方向尺寸，且由于托槽主体上设置的避让位，使得弹性件在变形过程中不会挤压到托槽主体与盖体，从而避免了弹性件的损坏；在通过滑动凸后，弹性件开始在应力作用下恢复原状，此过程弹性件释能，直到完全通过滑动凸后，弓丝槽打开。
本发明能获得的有益效果：
1、通过设置具有缺口的弹性件，弹性件被挤压压缩后，缺口的上下端接触形成闭环，对盖体产生较大的锁紧力，且受力均匀，能将盖体紧紧固定；
2、缺口的大小可以调节，从而实现自锁力的调节，改变了传统正畸托槽托槽主体力度设置难的问题，并可以实现不同牙位不同托槽间设置不同的自锁力；
3、由于托槽主体上设置有避让位，使得弹性件在变形过程中不会挤压到托槽主体与盖体，从而避免了弹性件的损坏。
4、在托槽的使用过程中，弹性件受到压缩后变形，由于缺口的设置，当弹性件的缺口两侧的端部接触时，弹力值急剧增大，从而使得托槽的盖体牢固固 定。
附图说明
图1为本发明托槽结构立体分解爆炸图；
图2为本发明托槽托槽主体结构立体图；
图3为本发明第一实施例托槽盖体结构示意图；
图4为本发明第二实施例托槽盖体结构示意图；
图5为本发明一实施例弹性件结构示意图；
图6为本发明另一实施例弹性件结构示意图；
图7为本发明弹性件处于自由状态时的托槽侧视示意图；
图8为本发明弹性件处于压缩状态时的托槽侧视示意图；
图9为本发明第二实施例弹性件侧放置时的托槽主视图；
图10为本发明三种不同形状弹性件的结构示意图；
图11为本发明弹性件在压缩过程受力大小变化趋势图。
附图标记说明：
托槽主体100，盖体200，弹性件300，底板400，弓丝槽101，第一端部102，第二端部103，放置孔104，避让位105，T型槽106；凹槽210，打开部201，滑动凸202，关闭部203，关闭壁204，阻挡壁205，缺口301，中央部302，外壁303，上端311，下端312,凸台401。
具体实施方式
实施例一：
参见图1，为托槽的分解爆炸图，托槽包括托槽主体100、盖体200、弹性件300以及底板400，底板400上设有凸台401。
参见图2，托槽主体100的顶部贯穿设有一弓丝槽101，弓丝槽101把托槽 主体100分为第一端部102和第二端部103，第一端部102顶部开设有T型槽106，在T型槽106底部设置有放置孔104，放置孔104贯穿到托槽主体100的底端，且在放置孔104垂直于弓丝槽101沟槽方向的侧边设有从T型槽槽底开始延伸到放置孔104内部的避让位105。
参见图3、图4,为盖体200，在盖体200底面设置有凹槽210，凹槽210包括打开部201、滑动凸202以及关闭部203，靠近打开部201的一侧设有阻挡壁205，靠近关闭部203的一侧设有关闭壁204。
参见图5、图6，为弹性件300，包括外壁303，外壁303弯折成“C”型形状，所述外壁303中央形成为贯穿的中央部302，弹性件300外壁303具有一缺口301，所述缺口301使外壁303在自由状态下不闭合，所述外壁303在所述缺口301处具有相应的上端311和下端312。
装配时，将盖体200通过托槽主体100上的T型槽106滑动配合，实现盖体200对弓丝槽101的打开与闭合；弹性件300放置在托槽主体100上的放置孔104，同时由于放置孔104至少有一个侧面为平面，弹性件300亦有至少一个面为平面，两个平面间可以相互配合达到周向定位作用，再通过底板400的凸台401把托槽主体100上的放置孔104堵住，从而使弹性件300达到纵向定位。
托槽盖体自锁结构的工作原理，参见图7、图8，其中图7为在盖体200关闭位置与打开位置上的弹性件300状态，此时弹性件300处于自由状态。当要打开弓丝槽101时，滑动盖体200，由于弹性件300在盖体200滑动过程中遇到盖体上的滑动凸202，滑动凸202阻挡了弹性件300的滑动轨迹，所以这时候盖体200能在滑动凸202的作用下被紧紧的锁住不能滑动，此时弓丝槽101关闭；再施加力给盖体200，致使盖体200的滑动凸202与弹性件300产生挤压，迫使弹性件300产生变形，见图8，弹性件300在压力作用下向着缺口方向弯曲，此 时弹性件300蓄能，同时在挤压的作用下产生变形；盖体200上的凹槽210最窄处的宽度不小于弹性件300的滑动方向尺寸，且由于托槽主体100上设置的避让位105，使得弹性件300在变形过程中不会挤压到托槽主体100与盖体200，从而避免了弹性件300的损坏；在通过滑动凸202后，弹性件开始在应力作用下恢复原状，此过程弹性件300释能，直到完全通过滑动凸202后，弓丝槽101打开。
在挤压弹性件300时，由于弹性件300的缺口301可以设置大小，所以存在多种状态，以下为多种状态的说明。
在使用时，弹性件300的外壁303的壁厚是可以调节的，通过调节外壁303的壁厚实现不同的自锁力。还可以通过调节弹性件300的高度实现自锁力的调节。亦可以通过调整缺口301的大小来实现不同的力度，当需要大的自锁力时把缺口301调小，在挤压变形时致使弹性件300的缺口301处上端311与下端312贴合，此时中央部302面积缩小，整个弹性件300形成一个闭环结构，所以能形成较大的自锁力。通过这些方式实现自锁力的调节，改变了传统正畸托槽托槽主体力度设置难的问题，并可以实现不同牙位不同托槽间设置不同的自锁力。
实施例二：
见图9，为弓丝槽101处于关闭位置，侧向设置弹性件300，此时盖体200的滑动凸202设置于盖体200顶端，当打开弓丝槽101时，滑动凸202与弹性件300挤压，施加给弹性件300向下的压力，迫使弹性件300缺口301处的上端311与下端312相互靠近，其原理与实施例一相同。
见图10，为三种不同变形后的弹性件300，分别处于自然状态，压缩过程状态或压缩后状态，其中A图是在三个状态，自然状态，压缩过程状态，压缩 后状态，压缩后弹性件300处于闭环状态，可承受一个较大的力度而不损坏；B图是上端311与下端312都为一个斜面，且开口方向相互平齐，在压缩接触后相互平齐接触，受力更加均匀；C图是缺口两头相互卷弯的压缩后，卷曲向内卷，此时蓄能。
参见图11，为经过力学实验得到的本发明弹性件300在压缩过程中的受力大小趋势图，从图中可以看出，在弹性件300压缩过程中，当弹性件300的缺口301两侧未接触时，弹性件300受到的力值大小增加幅度还比较平缓，但当缺口301两侧接触时，弹性件300受到的力值大小突变，力值大小增加幅度急剧增大。
本发明所有实施例均具有以下优点：
1、通过设置具有缺口的弹性件，弹性件被挤压压缩后，缺口的上下端接触形成闭环，对盖体产生较大的锁紧力，且受力均匀，能将盖体紧紧固定；
2、缺口的大小可以调节，从而实现自锁力的调节，改变了传统正畸托槽托槽主体力度设置难的问题，并可以实现不同牙位不同托槽间设置不同的自锁力；
3、由于托槽主体上设置有避让位，使得弹性件在变形过程中不会挤压到托槽主体与盖体，从而避免了弹性件的损坏。
4、在托槽的使用过程中，弹性件受到压缩后变形，由于缺口的设置，当弹性件的缺口两侧的端部接触时，弹力值急剧增大，从而使得托槽的盖体牢固固定。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以作出若干变形和

Claims (11)

  1. 一种托槽，其特征在于：包括托槽主体、盖体、弹性件和底板；所述托槽主体上设置有一贯穿的弓丝槽；所述底板设置于所述托槽主体底部；所述盖体的底面与所述托槽主体的顶部活动配合，用于打开或关闭弓丝槽；所述盖体的底部设置有滑动凸；所述弹性件设置于所述托槽主体上，所述弹性件具有缺口，所述滑动凸与所述弹性件接触，当所述盖体滑动时，所述滑动凸挤压弹性件。
  2. 根据权利要求1所述的托槽，其特征在于：所述弹性件包括外壁，外壁弯折成具有所述缺口的“C”型形状，所述外壁中央为贯穿的中央部，所述外壁在所述缺口处具有上端和下端。
  3. 根据权利要求2所述的托槽，其特征在于：所述上端和所述下端为相互平齐的平面或相互平齐的斜面或分别向内卷曲。
  4. 根据权利要求1所述的托槽，其特征在于：所述弓丝槽将所述托槽主体分为第一端部和第二端部，所述盖体与第一端部活动配合，所述第一端部顶部开设有T型槽，所述T型槽底部设置有放置孔，所述弹性件放置于所述放置孔中。
  5. 根据权利要求4所述的托槽，其特征在于：所述放置孔贯穿到托槽主体底部，所述底板上设置有与所述放置孔配合的凸台。
  6. 根据权利要求4或5所述的托槽，其特征在于：在放置孔设置有避让位。
  7. 根据权利要求1所述的托槽，其特征在于：在所述盖体底面设置有凹槽，所述凹槽包括打开部、所述滑动凸以及关闭部，靠近打开部的一侧设有阻挡壁，靠近关闭部的一侧设有关闭壁。
  8. 根据权利要求7所述的托槽，其特征在于：所述凹槽最窄处的宽度不小于弹性件的沿滑动方向的尺寸。
  9. 根据权利要求7所述的托槽，其特征在于：所述滑动凸设置于所述凹槽的槽底或设置于所述凹槽一滑动侧边。
  10. 根据权利要求1-5、7-9任一项所述的托槽，其特征在于：所述缺口的大小能够调整。
  11. 一种托槽的自锁方法，其特征在于：使用如权利要求1-10中任一项所述的托槽；盖体处于关闭位置或打开位置时，弹性件处于自由状态；当所述盖体滑动时，滑动凸挤压弹性件，使得弹性件的缺口两侧靠拢或接触。
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CN107714205B (zh) * 2017-11-10 2019-08-30 广州欧欧医疗科技有限责任公司 托槽及托槽的自锁方法
CN109091254B (zh) * 2018-04-30 2023-09-19 广州欧欧医疗科技有限责任公司 一种止动托槽及其使用方法
CN108742896B (zh) * 2018-06-02 2020-12-22 广州欧欧医疗科技有限责任公司 一种自锁托槽
CN109381269A (zh) * 2018-12-29 2019-02-26 上海埃蒙迪材料科技股份有限公司 牙齿正畸用被动式自锁托槽
CN110478062B (zh) * 2019-07-31 2021-06-29 浙江新亚医疗科技股份有限公司 结构可靠的托槽
CN113349961A (zh) 2020-03-06 2021-09-07 广州欧欧医疗科技有限责任公司 正畸器具

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