CN220676132U - Locking piece for fixing appliance and fixing appliance using same - Google Patents

Abstract

The utility model discloses a locking piece of a fixed appliance and the fixed appliance using the locking piece. The locking piece is detachable, is convenient to install and remove, and does not influence the normal use of the conventional fixed appliance.

Description

Locking piece for fixing appliance and fixing appliance using same

Technical Field

The utility model relates to the field of orthodontic treatment, in particular to a locking piece of a fixed appliance and the fixed appliance using the locking piece.

Background

Orthodontic (Orthodontics) is the correction of teeth, the removal of teeth staggering and deformity. Orthodontics mainly researches the etiology mechanism of misjaw deformity, diagnoses, analyzes, prevents and treats oral diseases, and can also achieve the effect of attractive teeth. Among them, the fixed appliance is widely used as a conventional orthodontic appliance having a remarkable orthodontic effect.

The fixed appliance comprises a bracket and a buccal tube. The correction method comprises the steps of adhering the fixed correction device on the tooth surface, connecting the fixed correction devices of all the tooth positions in series by using the memory metal wire, and driving the teeth to move and deflect by using the restoring force of the memory metal wire so as to achieve the effect of correcting the teeth. In some cases, it is desirable to achieve static friction between the memory wire and the individual fixed appliance, with traction mechanisms attached to pull other teeth into movement. In some cases, a torque force is required to be generated between the square memory wire and the inside corners of the slots of the individual fixed appliances to effect deflection of the teeth to which the fixed appliances belong.

To meet this requirement, the existing bracket is usually provided with a locking component fixedly thereon, such as a pressing spring plate arranged on the inner side of the cover plate, or a convex spring plate or an elastic roller arranged on the side wall of the archwire slot. However, in such an arrangement, the internal dimensions of the slot are constantly reduced and the full dimensions of the archwire slot cannot be fully utilized. That is, the lock function cannot be released.

In order to solve the technical problem, the applicant filed the Chinese patent publication No. CN105982745A discloses a traction bracket and orthodontic system and an orthodontic method thereof, wherein the traction bracket and orthodontic system comprises a main body part and a cover body part, and a locking traction hole is arranged on the main body part so as to be matched with a locking lock bolt or a traction bolt. However, this technique requires tapping holes in the brackets, i.e. deep processing of the original brackets, which on the one hand necessarily detracts from the yield and increases the cost, and on the other hand, when the stop bolts or the traction bolts are not used, the holes may be filled with food residues, which may impair oral hygiene and also disable the hole function.

Disclosure of Invention

The utility model provides a locking piece and a fixing appliance using the same.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the locking piece comprises at least one occupying block and at least one buckling body, wherein the occupying block is used for being placed in a groove of the fixed appliance or at least one opening of one end of the groove, and the buckling body is used for being placed outside the groove of the fixed appliance and buckling the fixed appliance.

Compared with the prior art, the method has the following positive effects: the locking piece is simple and flexible in structure, is suitable for most of the existing fixed appliances in the market, comprises a ligation type fixed appliance without a cover, a self-locking type fixed appliance with a cover body, and even a fixed appliance with a traction hook, and can be adapted only by adjusting the size parameters of the locking piece according to the fixed appliance.

Specifically, when the occupation piece is used for being placed in the groove of the fixed appliance, the buckling body is a bending piece, one end of the buckling body is connected with one end of the occupation piece, the other end of the buckling body is suspended, and the inner bending surface of the buckling body is combined with the occupation piece to form a clamping position. The locking piece is simple and smart in structure and suitable for most of the existing fixed appliances in the market.

Specifically, when the occupation block is used for being placed in the groove of the fixed appliance, the fixed appliance comprises the occupation block and at least one pair of buckles, one ends of the buckles are respectively connected with two opposite ends of the occupation block, the other ends of the buckles are suspended in the air, and opposite sides of the buckles are combined with the occupation block to form a clamping position. The locking piece is firmly connected with and fixed to the appliance by clamping.

Specifically, when the occupation block is used for being placed at the opening of at least one end of the groove of the fixed appliance, the locking piece further comprises a cover body, the cover body is used for being covered on the surface of the fixed appliance, and the occupation block and the buckle body are respectively arranged on the inner side surface or the edge of the cover body. The locking piece is very suitable for the coverless ligature type fixed appliance, can shield the groove of the ligature type fixed appliance from the upper surface, reduce the concave-convex feeling of the fixed appliance, and promote the comfortable experience of patients. The locking piece is also very suitable for a self-locking type fixing appliance with a cover body, and can be installed without opening the cover body, so that the locking piece is convenient to use.

Preferably, one end of the buckle body is connected with the inner side surface or the edge of the cover body, and the other end of the buckle body is suspended in the air and provided with a clamping protrusion.

Further, the surface of the cover body is enamel color, and/or the surface of the cover body is provided with an axial inclination angle line, and/or the surface of the cover body is provided with a tooth position mark.

Further, the surface of the cover body is a sphere, an ellipsoid or a cylindrical side surface. The locking piece enables the appearance of the fixed appliance to be round and smooth, improves the comfort experience of a patient, and prevents the patient from falling to a great extent.

Specifically, each placeholder block is disposed on at least one side and/or above an opening at either end of the slot. The locking piece can realize space occupation locking at different degrees.

As another technical solution for solving the above technical problems, the present utility model provides a fixed appliance, which is characterized in that: comprises a main body part and the locking piece; the main body part comprises a base, the groove is arranged on the base, and the groove divides the base into a first end part and a second end part; the buckle body of the locking piece is buckled with the first end part and/or the second end part.

As still another solution to the above technical problem, the present utility model provides a fixed appliance, which is characterized in that: comprises a main body part, a traction part and the locking piece; the main body part comprises a base, and the groove is arranged on the base and divides the base into a first end part and a second end part; the traction component is connected to the front end surface of the first end part; the buckle body of the locking piece is buckled with the first end part, the second end part and/or the traction part.

Specifically, the main body part further comprises a cover body which is in sliding connection with the second end part so as to open or close the groove; the upper end face of the cover body is matched and butted with the upper end face of the first end part to form the upper surface of the main body part together or the upper end face of the cover body is formed on the upper surface of the main body part singly, and the upper surface is a plane or an outer arc surface; the upper end face of the traction component and the front end face of the traction component are integrally an outer arc face, and the upper end face of the traction component and the upper surface of the main body are in smooth transition.

Preferably, the main body part further includes a cover body slidably coupled to the second end portion to open or close the slot; the rear end face of the cover body part is matched and butted with the rear end face of the second end part to form the rear surface of the main body part together or the rear end face of the cover body part is formed separately, and the rear surface is an outer arc surface; the rear surface of the main body part is in smooth transition with the upper surface of the main body part; the side surface of the cover body, the side surface of the first end part and the side surface of the second end part jointly form the side surface of the main body part, which is an outer arc surface, and the side surface of the main body part and the upper surface of the main body part are in smooth transition; when the upper surface of the main body part is an outer arc surface, the rear surface of the main body part, the upper surface of the main body part and the two side surfaces of the main body part are part of spherical surfaces, ellipsoids or cylindrical side surfaces; the upper end face of the second end part is provided with a sliding rail, the bottom surface of the cover body is provided with a sliding groove, and the sliding rail is matched and butted with the sliding groove, so that the cover body is in sliding connection with the second end part; the upper end face of the first end part is higher than the upper end face of the second end part, the cover body slides forwards until the cover body abuts against the first end part, and the bottom face of the cover body completely covers the upper end face of the second end part at the moment; and the outer arc surface formed by the upper end surface of the traction component and the front end surface of the traction component is not higher than the upper surface of the main body part.

The utility model is further described below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1.

Fig. 2 is a front view of embodiment 1.

Fig. 3 is a left side view of example 1.

Fig. 4 is a schematic structural view of other embodiments.

Fig. 5 is a schematic structural diagram of embodiment 6.

Fig. 6 is a schematic structural view of the locking block of embodiment 6.

Fig. 7 is a schematic structural diagram of embodiment 7.

Fig. 8 is a schematic structural view of a locking block of embodiment 7.

Fig. 9 is a schematic structural view of embodiment 8.

Fig. 10 is a schematic structural view of a locking block of embodiment 8.

Fig. 11 is a schematic structural diagram of embodiment 9.

Fig. 12 is a schematic structural view of a lock block of embodiment 9.

Fig. 13 is a schematic view of the inner side surface structure of the lock block of embodiment 9.

Fig. 14 is a schematic structural view of embodiment 10.

Detailed Description

Example 1

Referring to fig. 1 to 3, the fixed appliance of embodiment 1 comprises a main body part and a traction part fixedly connected with each other, wherein the main body part comprises a base 11 and a cover 12 movably connected with each other.

The base 11 is a block having opposed upper and lower surfaces, opposed front and rear surfaces, and opposed sides. The base 11 is provided with a groove 113 penetrating both sides thereof, the groove 113 dividing the base 11 into a first end 115 and a second end 117, and the first end 115 protruding upward. That is, the upper surface of the base 11 is divided into the top surface 1152 of the first end portion 115 and the top surface of the second end portion 117, and the top surface 1152 of the first end portion 115 is higher than the top surface of the second end portion 117. The sides of the base 11 are divided into sides 1154 of the first end 115 and sides 1174 of the second end 117. The front surface of the base 11 is the front end surface of the first end 115. Rear end face 1158 of first end portion 115 and front end face 1176 of second end portion 117 form two sidewalls of slot 113. The rear surface of the base 11 is the rear face 1178 of the second end 117. The trench 113 includes an upper opening and two end openings.

The cover 12 is in the form of a sheet having opposed top and bottom surfaces 121, opposed front and rear end surfaces 123, 124, and opposed side surfaces 125. The top surface of the second end 117 is provided with a sliding rail, the sliding rail is in an inverted trapezoidal boss shape, the sliding rail and the top surface of the second end 117 are integrally formed, and in other embodiments, the sliding rail and the top surface of the second end 117 are fixed through welding. The bottom surface of the cover body 12 is provided with a chute which is a bar-shaped groove extending along the sliding direction, and the sizes of the two opposite sides of the chute are enlarged from the opening of the chute to the wall surface of the chute to form a dovetail groove. The slide rail and chute mate such that the cover 12 is slidably coupled to the second end 117. The cover 12 is configured to open or close the slot 113, and when the cover 12 is slid forward until the top surface 121 of the cover 12 abuts the rear end surface 1158 of the first end portion 115, the slot 113 is in a closed state, wherein the bottom surface of the cover 12 completely covers the top surface of the second end portion 117. When the cover 12 is slid to the upper opening of the groove 113 where the cover 12 does not cover the groove 113, the groove 113 is in an open state.

The mating interface of the top surface 121 of the cover 12 and the top surface 1152 of the first end 115 together form an upper surface of the body portion that is an outer arcuate surface. The mating abutment of the rear face 124 of the cap 12 portion with the rear face 1178 of the second end 117 together forms a rear surface of the body portion that is an outer arcuate surface. The side 125 of the cover 12, the side 1154 of the first end 115, and the side 1174 of the second end 117 together form a side surface of the body portion that is an outer arcuate surface. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surface of the main body part is in smooth transition with the side surfaces of the two main body parts respectively, and the rear surface of the main body part is in smooth transition with the side surfaces of the two main body parts respectively.

The traction member is rod-shaped with one end fixedly connected to the front end of the first end portion 115 and the other end suspended. The hanging end of the traction component partially protrudes to form a structure capable of hooking ligature wires. Specifically, the suspension end of the traction member of the present embodiment protrudes to both sides and is bent back inward to achieve traction. The traction member has an opposite top surface 31 and bottom surface, a front end surface 33 and opposite side surfaces 35, and the traction member top surface 31 and its front end surface 33 are rounded. Specifically, in this embodiment, the top surface 31 and the front end surface 33 of the traction member are both outer arc surfaces, and both surfaces smoothly transition to form an outer arc surface. The top surface 31 and the front end surface 33 of the traction member are not higher than the upper surface of the main body portion so that the traction member does not protrude from the overall structure. In this embodiment, the traction member is integrally formed with the body portion.

The rear surface of the main body and the upper surface thereof are combined with the top surface of the traction member and the front end surface thereof to form a part of an ellipsoid as a whole, and in other embodiments, the rear surface of the main body and the upper surface thereof are combined with the top surface of the traction member and the front end surface thereof to form a part of a spherical surface or a cylindrical side surface as a whole. Specifically, the curved surface formed overlaps a continuous curved surface taken on a complete ellipsoid, sphere or cylindrical side.

And the rear surface of the main body portion, the upper surface thereof and both side surfaces thereof are formed as a part of an ellipsoid as a whole. In other embodiments, the rear surface of the body portion and its upper surface and both side surfaces are integrally formed as a part of a spherical or cylindrical side surface. Specifically, the curved surface formed overlaps a continuous curved surface taken on a complete ellipsoid, sphere or cylindrical side.

Compared with the prior art, the fixed appliance of this embodiment, the rear surface of main part and its upper surface slick and sly transition, the top surface of traction element and its preceding terminal surface slick and sly transition form an outer arc surface, and the top surface of traction element and the upper surface slick and smooth transition of main part for on tooth interlock direction, fixed appliance is round and smooth, no obvious edges and corners, reduces the injury to the mucosa in the oral cavity, is difficult for droing, reduces patient's foreign matter sense stimulation, promotes user experience and feels.

The occlusal direction of the teeth refers to the direction of the movement track of the teeth during occlusion.

Further, the rear surface of the main body part and the upper surface thereof are combined with the top surface of the traction part and the front end surface thereof to form an ellipsoidal surface as a whole, namely, in the tooth occlusion direction, the stress of food friction can be dispersed from all directions when food is occluded, and the risk of falling off of the fixed appliance is reduced.

Furthermore, the rear surface of the main body part, the upper surface of the main body part and the two side surfaces of the main body part are ellipsoidal, so that the upper surface of the main body part, the two outer side surfaces of the main body part, the top surface of the rear surface combined traction part and the front end surface of the main body part are smooth curved, the whole fixing appliance is round and smooth, no obvious edges and corners are formed, the fixing appliance is not easy to fall off, the foreign body feeling stimulation of a patient is reduced to the greatest extent, the user experience is improved extremely, and the falling risk of the fixing appliance is reduced greatly.

In other embodiments, the top surface of the traction component is a plane, the front end surface of the traction component is an outer arc surface, and the top surface of the traction component and the front end surface of the traction component are in smooth transition to form a circular sliding surface. Or the top surface of the traction component is an outer arc surface, the front end surface of the traction component is a plane, and the top surface of the traction component and the front end surface of the traction component are in smooth transition to form a round sliding surface. Or the top surface of the traction component and the front end surface of the traction component are both planes, and the two planes are connected through a round angle to form a round sliding surface. The top surface and the front end surface of the traction component integrally form a round sliding surface, so that foreign body sensation of the traction component serving as a convex structure is reduced, and damage to mucous membranes in the oral cavity in the friction process is reduced.

In other embodiments, the traction member has a cantilevered end that protrudes toward one of the sides and is bent back into the hook. In other embodiments, the traction is achieved without the hook being bent back inward with the free end of the traction member protruding toward at least one of the sides. In other embodiments, the free end of the traction member is locally enlarged to form a structure for hooking the ligature, such as forming a spherical cap.

Further, the number of traction members is two. The two traction components are rod-shaped, one end of each traction component is fixedly connected to the front end of the first end part, and the other end of each traction component is suspended. The suspension end of the traction component protrudes towards one of the two sides and is bent back to the hook. Specifically, the hanging ends of the two traction members protrude toward each other and are bent back inward as shown in fig. 4.

In other embodiments, the traction members and the body portion may be secured or removably attached by welding.

Further, the main body of embodiment 1 further includes a bottom plate 40, the bottom plate 40 is connected to the bottom surface of the base 11, and the area of the bottom plate 40 is larger than the bottom surface of the base 11. The bottom plate 40 increases the area of the fixed appliance that is bonded to the facing, making it more secure to bond, reducing the risk of dropping. The bottom plate 40 and the base 11 may be integrally formed or may be assembled and connected. The following embodiments may also provide a bottom plate 40.

Example 2

The fixed appliance of embodiment 2 is substantially the same as embodiment 1 except that the top surface of the cover of embodiment 2 matingly interfaces with the top surface of the first end to collectively form the upper surface of the main body portion, which is planar. The rear end face of the cover body part is matched and butted with the rear end face of the second end part to jointly form the rear surface of the main body part, and the rear surface is an outer arc surface. The side surface of the cover body, the side surface of the first end part and the side surface of the second end part jointly form a side surface of the main body part, and the side surface of the cover body, the side surface of the first end part and the side surface of the second end part form an outer arc surface. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surface of the main body part is in smooth transition with the side surfaces of the two main body parts respectively.

The upper surface of the main body of the fixing appliance of embodiment 2 is a plane, and is in smooth transition with the rear surface of the main body and the top surface of the traction component respectively, so that a smooth curved surface is integrally formed, the fixing appliance is smooth and round in tooth occlusion direction, no obvious edges and corners are generated, harm to mucous membranes in the oral cavity is reduced, foreign body feeling stimulation of patients is reduced, and user experience is improved.

Example 3

The fixed appliance of embodiment 3 is substantially the same as that of embodiment 1, except that the top surface of the cover of embodiment 3 is matingly engaged with the top surface of the first end to collectively form the upper surface of the main body portion, which is an outer arcuate surface. The rear end face of the cover body part is matched and butted with the rear end face of the second end part to jointly form the rear surface of the main body part, and the rear surface is a plane. The side surface of the cover body, the side surface of the first end part and the side surface of the second end part jointly form a side surface of the main body part, and the side surface of the cover body, the side surface of the first end part and the side surface of the second end part form an outer arc surface. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surface of the main body part is in smooth transition with the side surfaces of the two main body parts respectively.

In the fixing appliance of embodiment 3, the traction component with the upper surface of the main body portion in smooth transition combined with the outer arc curved surface is in a smooth curved surface shape, so that the fixing appliance is natural and smooth in the tooth occlusion direction, the traction component is not obvious to protrude, the damage to mucous membranes in the oral cavity is reduced, foreign body feeling stimulation of a patient is reduced, and user experience feeling is improved.

In other embodiments, the upper surface of the body portion, which is an outer arcuate surface, is angularly connected to the rear surface of the body portion, which is a planar surface, to achieve substantially similar functional effects.

Example 4

The fixed appliance of embodiment 4 is substantially the same as embodiment 1 except that the top surface of the cover of embodiment 4 matingly interfaces with the top surface of the first end to collectively form the upper surface of the main body portion, which is planar. The rear end face of the cover body part is matched and butted with the rear end face of the second end part to jointly form the rear surface of the main body part, and the rear surface is a plane. The side surface of the cover body, the side surface of the first end part and the side surface of the second end part jointly form a side surface of the main body part, and the side surface of the cover body, the side surface of the first end part and the side surface of the second end part form an outer arc surface. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surface of the main body part is in smooth transition with the side surfaces of the two main body parts respectively.

In the fixing appliance of embodiment 4, the traction component of the outer arc curved surface of the upper surface smooth transition of the main body part is smooth curved, so that the fixing appliance is natural and smooth in the tooth occlusion direction, the traction component is not obvious to protrude, the damage to mucous membranes in the oral cavity is reduced, the foreign body feeling stimulation of a patient is reduced, and the user experience feeling is improved.

In other embodiments, the upper surface of the body portion that is planar is angularly connected to the rear surface of the body portion that is an outer arcuate surface, while the upper surface of the body portion that is planar is angularly connected to the side surface of the body portion that is an outer arcuate surface, substantially similar functional effects can be achieved.

Example 5

The fixed appliance of embodiment 5 is substantially the same as that of embodiment 1, except that the top surface of the cover of embodiment 5 is matingly engaged with the top surface of the first end to collectively form the upper surface of the main body portion, which is an outer arcuate surface. The rear end face of the cover body part is matched and butted with the rear end face of the second end part to jointly form the rear surface of the main body part, and the rear surface is an outer arc surface. The side surface of the cover, the side surface of the first end portion and the side surface of the second end portion together form a side surface of the main body portion, which is a plane. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surfaces of the body portions are connected with the side surfaces of the two body portions at an angle. The rear surface of the main body portion and the upper surface and both side surfaces thereof are combined with the top surface of the traction member and the front end surface thereof to be semi-cylindrical as a whole.

The upper surface of the main body of the fixing appliance of embodiment 5 is an outer arc surface, and the upper surface of the main body is in smooth transition with the rear surface of the main body and the top surface of the traction component respectively, so that a smooth curved surface is integrally formed, the fixing appliance is smooth and round in the occlusal direction of teeth, no obvious edges and corners are formed, the damage to mucous membranes in the oral cavity is reduced, the foreign body feeling stimulation of patients is reduced, and the user experience feeling is improved.

Example 6

The fixed appliance of embodiment 6 is substantially the same as that of embodiment 1, except that the fixed appliance of embodiment 6 further comprises a removable locking member comprising an integrally formed one piece of a spacer 61 and a clasp 63, the spacer 61 being positioned in the slot to effect space occupation of the archwire 50 in the slot. The buckle 63 is a bending member. One end of the buckle body 63 is connected with one end of the occupied block 61, the other end of the buckle body 63 is suspended, and the inner bending surface of the buckle body 63 is combined with the occupied block 61 to form a clamping first end part.

In the use process, when the archwire 50 needs to be limited, the cover body is opened, the occupying block 61 of the locking piece is placed in the groove in which the archwire 50 is placed, and meanwhile, the buckling body 63 of the locking piece surrounds the first end part to form a clamping relationship. The locking piece is fixed on the base, and the cover body is closed, so that the installation is completed.

In other embodiments, the latch formed by the buckle body may be engaged with the second end or the traction member, or engaged with the first end and the second end, or engaged with the first end, the second end and the traction member.

Example 7

Referring to fig. 7-8, the fixed appliance of embodiment 7 is substantially identical to the fixed appliance of embodiment 1, except that the fixed appliance of embodiment 7 further includes a removable locking member comprising an integrally formed one spacer 71 and a pair of clasps 73, the spacer 71 being positioned within the slot to effect space occupation, thereby restricting the movement of the archwire 50 within the slot. One end of each of the pair of buckles 73 is respectively connected with two opposite ends of the space occupying block 71, the other end of each buckle is suspended, and the pair of buckles 73 clamp the first end and the traction component.

In use, when the archwire 50 is required to be limited, the cover is opened, the occupying blocks 71 of the locking piece are placed in the grooves in which the archwire 50 is placed, and meanwhile, the pair of buckling bodies 73 of the locking piece are clamped at the two sides of the first end part and the traction part to form a clamping relationship. The locking piece is fixed on the base, and the cover body is closed, so that the installation is completed.

In other embodiments, the clasp body holds the second end, either the first end or the traction member alone, or the first end and the second end, or the first end, the second end, and the traction member.

Example 8

The fixed appliance of embodiment 8 is substantially the same as that of embodiment 1, except that the fixed appliance of embodiment 8 further comprises a detachable locking member comprising two integrally formed occupation blocks 81 and a buckle 83, wherein the two occupation blocks 81 are respectively arranged at two end openings of the slot to implement occupation, thereby limiting the movable space of the archwire 50 in the slot. The buckle 83 is a bending member, specifically, a letter C. And two ends of the same are respectively connected with a space occupying block 81. The inner curved surface of the clasp 83 forms a detent.

In use, when the archwire 50 is required to be restrained without opening the cover, the catch 83 of the locking member encircles the first end and forms a snap-fit relationship with the first end and the traction member. The locking piece is fixed on the base, and then the installation is completed.

In other embodiments, the clasp may clamp the second end.

The embodiment sets up the occupation piece in the both ends opening part of slot, and when placing the archwire in the slot, the archwire is stopped by the occupation piece for the range of motion of archwire is limited, thereby plays the effect of occupation.

In other embodiments, the placeholder blocks may be disposed at one of the two end openings of the slot.

Furthermore, in the present embodiment, the occupying blocks are disposed on one side of the opening of the two ends of the slot near the first end. In other embodiments, the placeholder blocks may be disposed on a side of the slot open at either end, proximate the second end. Alternatively, the spacer may be disposed on and above the side of the slot open at either end proximate the second end such that the spacer limits the range of motion of the archwire on and above the second end simultaneously. Each placeholder block may then be disposed on at least one side and/or above the slot at either end opening.

Furthermore, it can be seen from examples 6-8 that the locking element can be applied to a fixed appliance with traction means or to a fixed appliance without traction means. Further, the locking element may be used in a fixed appliance without a cover plate, i.e., a fixed appliance with the archwire 50 fixed by a ligature wire.

Example 9

The fixed appliance of embodiment 9 is substantially the same as that of embodiment 1, except that the fixed appliance of embodiment 9 further comprises a removable locking member comprising an ellipsoidal cover member over the main body and traction member, the cover member having an enamel color. The cover body edge is provided with a plurality of buckles 93 and two relative occupation pieces 91, and the one end of the buckles 93 is connected the edge of the cover body, and the other end of the buckles 93 is unsettled and is equipped with the card protruding, and the buckles 93 buckle second end and traction part through the card protruding. The two occupation blocks 91 are respectively hung and arranged at the openings at the two ends of the groove to implement occupation.

In the use, need not to open the lid, on installing the main part of archwire 50, the lock piece is locked to the lock for the lid cover is established on main part and traction element, can accomplish the installation, is located the space that the space occupying 91 of the both ends opening part of slot restriction archwire 50.

The embodiment sets up the occupation piece in the both ends opening part of slot, and when placing the archwire in the slot, the archwire is stopped by the occupation piece for the range of motion of archwire is limited, thereby plays the effect of occupation.

In other embodiments, the placeholder blocks may be disposed at one of the two end openings of the slot.

Furthermore, in this embodiment, the space occupying block is disposed on one side and above the two ends of the slot, which are open and close to the first end, so that the space occupying block limits the movement range of the archwire on one side and above the second end. In other embodiments, the placeholder blocks may be disposed on a side of the slot open at either end, proximate the first end or the second end. Each placeholder block may then be disposed on at least one side and/or above the slot at either end opening.

In other embodiments, the buckle body may be configured to engage the first end, the second end, or the traction member alone, may engage only the first end and the second end, may engage only the first end and the traction member, or may engage only the second end and the traction member.

In other embodiments, the cover is ellipsoidal or cylindrical in side. In other embodiments, the clasp and spacer may be disposed on the inside of the housing.

In other embodiments, the surface of the cover is provided with an axis tilt angle line and a tooth position indicator.

In other embodiments, the occupying blocks and the buckle body are respectively arranged on the inner side surface of the cover body.

Furthermore, it can be seen from example 9 that the locking element can be applied to a fixed appliance with traction means or to a fixed appliance without traction means. Further, the locking element may be used in a fixed appliance without a cover plate, i.e., a fixed appliance with the archwire 50 fixed by a ligature wire.

It should be noted that, in order to facilitate opening the cover, the fixed appliance of the sliding cover generally has a square or semicircular recess on the top surface of the first end or the top surface of the cover. The fixed appliance of the present utility model is also provided with such a recess, thus causing a defect in the fit between the top surface of the first end and the top surface of the cover, the extension 11520 of the top surface 1152 of the first end/the extension of the top surface 121 of the cover should be used as the top surface 1152 of the first end/the top surface of the cover.

Example 10

Referring to fig. 14, the fixed appliance of embodiment 10 includes a main body portion and a traction member fixedly connected to each other, and the main body portion includes a base and a cover movably connected to each other.

The base is a block having opposed upper and lower surfaces, opposed front and rear surfaces, and opposed sides. The base is provided with a slot 113a extending through both sides thereof, the slot 113a dividing the base into a first end and a second end. That is, the upper surface of the base is divided into a top surface 1152a at the first end and a top surface 1172a at the second end. The side of the base is divided into a side of the first end and a side of the second end. The front surface of the base is the front end surface of the first end. The rear end face of the first end portion and the front end face of the second end portion constitute both side walls of the groove. The rear surface of the base is the rear face 1178a of the second end. The groove 113a includes an upper opening and both ends.

The cover is in the form of a sheet having opposed top and bottom surfaces 121a, opposed front and rear end surfaces 124a, and opposed side surfaces. The two sides are each provided with a protruding edge, forming a pair of slide rails 1251. The top surface of the second end portion is partially concave inward to form a chute 1171, and both ends of the chute 1171 penetrate through the front end surface and the rear end surface of the second end portion. The slide rail 1251 and slide channel 1171 mate such that the cover is slidably coupled to the second end. The cover is used to open or close the slot 113a, and when the cover is slid forward until the top surface 121a of the cover abuts against the rear end surface of the first end, the slot 113a is in a closed state. When the cover is slid to the point where the cover does not cover the upper opening of the groove 113a, the groove 113a is in an open state.

The top surface 121a of the cover, the top surface 1172a of the second end, and the top surface 1152a of the first end mate together to form an upper surface of the body portion, which is planar. The rear end face 124a of the cap body portion mates with the rear end face 1178a of the second end to form a rear surface of the body portion, which is an interior arcuate surface. The side surface of the cover, the side surface of the first end portion and the side surface of the second end portion together form a side surface of the main body portion.

The traction component is rod-shaped, one end of the traction component is fixedly connected to the front end of the first end, and the other end of the traction component is suspended. The hanging end of the traction component partially protrudes to form a structure capable of hooking ligature wires. Specifically, the suspension end of the traction member of the present embodiment protrudes to both sides and is bent back inward to achieve traction. The traction member has an opposite top face 31a and bottom face, a front end face 33a, and opposite side faces, and the traction member top face 31a is a rounded surface as a whole with its front end face 33 a. Specifically, in this embodiment, the top surface 31a of the traction member and the front end surface 33a thereof are both outer arc surfaces, and both are smoothly transitioned to form an outer arc surface. The top surface 31a and the front end surface 33a of the traction member are not higher than the upper surface of the main body portion so that the traction member does not protrude from the overall structure. In this embodiment, the traction member is integrally formed with the body portion.

The upper surface of the main body portion and the top surface of the traction member and the front end surface thereof are integrally formed into a smooth arc surface, and in other embodiments, the upper surface of the main body portion and the top surface of the traction member and the front end surface thereof are integrally formed into an ellipsoidal surface, a spherical surface, or a part of a cylindrical side surface. Specifically, the curved surface formed overlaps a continuous curved surface taken on a complete ellipsoid, sphere or cylindrical side.

Compared with the prior art, the fixed appliance of the embodiment has the advantages that the upper surface of the main body part is combined with the top surface of the traction part and the front end surface of the traction part to form a smooth cambered surface integrally, so that the fixed appliance is round and smooth in the occlusion direction of teeth, has no obvious edges and corners, and reduces the damage to mucous membranes in the oral cavity.

Example 11

The fixed appliance of embodiment 11, comprising a main body portion and a traction member fixedly connected to each other, the main body portion comprising a base and a cover movably connected to each other.

The base is a block having opposed upper and lower surfaces, opposed front and rear surfaces, and opposed sides. The base is provided with a slot penetrating through two side surfaces of the base, and the slot divides the base into a first end part and a second end part. That is, the upper surface of the base is divided into a top surface of the first end portion and a top surface of the second end portion. The side of the base is divided into a side of the first end and a side of the second end. The front surface of the base is the front end surface of the first end. The rear end face of the first end portion and the front end face of the second end portion constitute both side walls of the groove. The rear surface of the base is the rear end face of the second end.

The cover body is in a sheet shape and is provided with a top surface and a bottom surface which are opposite, a front end surface and a rear end surface which are opposite, and two side surfaces which are opposite. The cover is hinged to the second end such that the cover is reversible relative to the second end such that the cover opens or closes the slot. Specifically, in the closed state, the cover completely covers the top surface of the first end, the top surface of the second end, and the groove, and in the open state, the cover completely exposes the top surface of the first end, the top surface of the second end, and the groove. And the cover body always covers the rear end face of the second end part.

The top surface of the cover body forms the upper surface of the main body part, which is an outer arc surface. The rear end face of the cover body portion forms a rear surface of the main body portion, which is an outer arc surface. The side surface of the cover, the side surface of the first end portion and the side surface of the second end portion together form a side surface of the main body portion, which is a plane. The upper surface of the main body part and the rear surface of the main body part are in smooth transition. The upper surfaces of the body portions are substantially angularly connected with the side surfaces of the two body portions, respectively.

The traction component is rod-shaped, one end of the traction component is fixedly connected to the front end face of the first end, and the other end of the traction component is suspended. The suspended end of the traction member is partially enlarged to form a structure to which the ligature wire can be hooked. Specifically, the suspension end of the traction member of the present embodiment protrudes to both sides and is bent back inward to achieve traction. The traction component is integrally provided with a top surface, a bottom surface, a front end surface, a rear end surface and two side surfaces, wherein the top surface, the front end surface and the rear end surface of the traction component are opposite, the top surface and the front end surface of the traction component are in smooth transition to form an outer arc surface, and the top surface of the traction component is in smooth transition with the upper surface of the main body. In this embodiment, the traction member and the main body are integrally formed, and in other embodiments, the traction member and the main body may be fixed by welding or detachably connected.

The rear surface of the main body and the upper surface thereof are combined with the top surface of the traction member and the front end surface thereof to form a cylindrical side surface as a whole. In other embodiments, the upper surface of the main body portion may be formed by the top surface of the second end portion and the top surface of the cover portion.

The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.

Claims (12)

1. A locking member for securing an appliance, comprising: the fixing appliance comprises at least one occupying block and at least one buckling body, wherein the occupying block is used for being placed in a groove of the fixing appliance or at least one opening of one end of the groove, and the buckling body is used for being placed outside the groove of the fixing appliance and buckling the fixing appliance.

2. The locking element of claim 1, wherein: when the occupying block is used for being placed in the groove of the fixed appliance, the buckling body is a bending piece, one end of the buckling body is connected with one end of the occupying block, the other end of the buckling body is suspended, and the inner bending surface of the buckling body is combined with the occupying block to form a clamping position.

3. The locking element of claim 1, wherein: when the occupying block is used for being placed in the groove of the fixed appliance, the fixed appliance comprises the occupying block and at least one pair of buckles, one ends of the buckles are respectively connected with two opposite ends of the occupying block, the other ends of the buckles are suspended in the air, and opposite sides of the buckles are combined with the occupying block to form a clamping position.

4. The locking element of claim 1, wherein: when the occupying block is used for being placed at the opening of at least one end of the groove of the fixed appliance, the locking piece further comprises a cover body, the cover body is used for being covered on the surface of the fixed appliance, and the occupying block and the buckle body are respectively arranged on the inner side surface or the edge of the cover body.

5. The locking element of claim 4, wherein: one end of the buckle body is connected with the inner side surface or the edge of the cover body, and the other end of the buckle body is suspended in the air and provided with a clamping protrusion.

6. The locking element of claim 4, wherein: the surface of the cover body is enamel color, and/or the surface of the cover body is provided with an axial inclination angle line, and/or the surface of the cover body is provided with a tooth position mark.

7. The locking element of claim 4, wherein: the surface of the cover body is a sphere, an ellipsoid or a cylindrical side surface.

8. The locking element of claim 4, wherein: each placeholder block is disposed on at least one side and/or above an opening at either end of the slot.

9. A fixed appliance, characterized by: comprising a main body portion and the locking element of any one of claims 1-8; the main body part comprises a base, the groove is arranged on the base, and the groove divides the base into a first end part and a second end part; the buckle body of the locking piece is buckled with the first end part and/or the second end part.

10. A fixed appliance, characterized by: comprising a body portion, a traction member and a locking element according to any one of claims 1-8; the main body part comprises a base, and the groove is arranged on the base and divides the base into a first end part and a second end part; the traction component is connected to the front end surface of the first end part; the buckle body of the locking piece is buckled with the first end part, the second end part and/or the traction part.

11. The fixed appliance of claim 10, wherein: the main body part further comprises a cover body which is in sliding connection with the second end part so as to open or close the groove; the upper end face of the cover body is matched and butted with the upper end face of the first end part to form the upper surface of the main body part together or the upper end face of the cover body is formed on the upper surface of the main body part singly, and the upper surface is a plane or an outer arc surface; the upper end face of the traction component and the front end face of the traction component are integrally an outer arc face, and the upper end face of the traction component and the upper surface of the main body are in smooth transition.

12. The fixed appliance of claim 11, wherein: the main body part further comprises a cover body which is in sliding connection with the second end part so as to open or close the groove; the rear end face of the cover body part is matched and butted with the rear end face of the second end part to form the rear surface of the main body part together or the rear end face of the cover body part is formed separately, and the rear surface is an outer arc surface; the rear surface of the main body part is in smooth transition with the upper surface of the main body part; the side surface of the cover body, the side surface of the first end part and the side surface of the second end part jointly form the side surface of the main body part, which is an outer arc surface, and the side surface of the main body part and the upper surface of the main body part are in smooth transition; when the upper surface of the main body part is an outer arc surface, the rear surface of the main body part, the upper surface of the main body part and the two side surfaces of the main body part are part of spherical surfaces, ellipsoids or cylindrical side surfaces; the upper end face of the second end part is provided with a sliding rail, the bottom surface of the cover body is provided with a sliding groove, and the sliding rail is matched and butted with the sliding groove, so that the cover body is in sliding connection with the second end part; the upper end face of the first end part is higher than the upper end face of the second end part, the cover body slides forwards until the cover body abuts against the first end part, and the bottom face of the cover body completely covers the upper end face of the second end part at the moment; and the outer arc surface formed by the upper end surface of the traction component and the front end surface of the traction component is not higher than the upper surface of the main body part.