False tooth bridge positioning mechanism

Abstract

The utility model discloses a false tooth bridge positioning mechanism, which comprises two dental crowns arranged at intervals and repair teeth arranged between the two dental crowns, limit grooves are concavely arranged on the two dental crowns close to the repair teeth, cavities are arranged in the repair teeth, and the limit grooves are communicated with the cavities. Slide way openings which penetrate through the outer walls of the repairing teeth and are matched with the two limiting grooves are formed in the two sides of the cavity; locking blocks are arranged in the sliding way openings in a sliding mode, an elastic driving piece used for controlling the locking blocks on the two sides at the same time is arranged in the cavity in a connected mode, a sealing patch is arranged at the upper end of the cavity in a clamped mode, and when the sealing patch is clamped with the cavity, the upper end of the elastic driving piece abuts against the lower end of the sealing patch. Compared with the prior art, the false tooth bridge positioning mechanism provided by the utility model has the advantages that the false tooth bridge positioning mechanism can be conveniently matched with repaired teeth for use, the operation complexity is reduced, and the use effect is met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a positioning mechanism for a dental bridge. Background Art

[0002] A dental bridge, namely a fixed bridge, is a prosthesis for repairing one or several missing natural teeth in a dentition defect and restoring its anatomical shape and physiological function. It mainly uses the natural teeth at both ends or one end of the missing tooth gap as abutment teeth, makes a fixed retainer for the denture on the abutment teeth and connects it with artificial teeth to form a whole, and is cemented on the abutment teeth through a cementing agent.

[0003] In order to avoid the damage to the abutment teeth when the dental bridge is removed, Application No. CN202120612432.3 discloses an oral dental bridge that can disassemble and clean and replace the restoration tooth separately, without disassembling the two crowns and the restoration tooth together, thus not causing harm to the abutment teeth. However, the operation of the driving part is a screw-threaded hole fit, and for the teeth, a relatively small operation space is still likely to cause inconvenience in rotating the bolt part during operation. Summary of the Utility Model

[0004] (1) Problems to be Solved

[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a positioning mechanism for a dental bridge that is convenient to adapt to the use of the restoration tooth, reduces the complexity of operation, and meets the use effect.

[0006] (2) Technical Solutions

[0007] To solve the above technical problem, the technical solution provided by the utility model is: a positioning mechanism for a dental bridge, including two crowns arranged at intervals and a restoration tooth arranged between the two crowns. Limiting grooves are concavely arranged on the two crowns close to the restoration tooth. A chamber is arranged inside the restoration tooth, and sliding ports are arranged on both sides of the chamber, penetrating through the outer wall of the restoration tooth and cooperating with the two limiting grooves.

[0008] Locking blocks are slidably arranged in the sliding ports, and an elastic driving part for simultaneously controlling the locking blocks on both sides is connected in the chamber. A sealing patch is clamped at the upper end of the chamber. When the sealing patch is clamped with the chamber, the upper end of the elastic driving part abuts against the lower end of the sealing patch.

[0009] As an improvement, the elastic driving part includes a bottom sleeve fixedly arranged in the chamber and a sleeve rod sleeved in the bottom sleeve. The upper end of the sleeve rod extends to the upper part of the bottom sleeve, and linkage rods are respectively hinged between the two sides of the sleeve rod and the two locking blocks.

[0010] As an improvement, a support spring is connected to the bottom end of the sleeve rod and is connected to the inner bottom wall of the bottom sleeve.

[0011] As an improvement, the chamber is circular in top view, and the closed patch is arranged in cooperation with the chamber. Both ends of the closed patch are convexly provided with bumps. On both sides of the chamber, there are concave-convex limit slide rails which are arranged in an L shape along the inner wall of the chamber from top to bottom. The upper wall of the short arm end of the limit slide rail is concave-convexly provided with a positioning groove.

[0012] As an improvement, the lower end wall of the closed patch and the upper end wall of the sleeve rod are both arranged as smooth planes.

[0013] (III) Beneficial effects

[0014] The advantages of the present utility model compared with the prior art are as follows: In this application, the fixing and disassembly of the repaired tooth are completed through the cooperation of structures such as the limit groove and the locking block. At the same time, in this application, through the cooperation of the closed patch, the L-shaped limit slide rail, the support spring and the sleeve rod, the position of the locking block is controlled, so that the repaired tooth can be easily disassembled by removing the closed patch. At the same time, the additionally provided positioning groove can cooperate with the support spring to complete the locking of the position of the closed patch during use. Description of the drawings

[0015] Figure 1 It is a schematic structural diagram of a denture bridge positioning mechanism.

[0016] Figure 2 It is a schematic structural diagram of the limit slide rail.

[0017] As shown in the figure: 1, dental crown; 2, repaired tooth; 3, limit groove; 4, chamber; 5, slideway opening; 6, locking block; 7, locking block; 8, bottom sleeve; 9, sleeve rod; 10, linkage rod; 11, support spring; 12, bump; 13, limit slide rail; 14, positioning groove. Specific embodiments

[0018] The following further illustrates the specific embodiments of the present utility model with reference to the drawings. The same reference numerals are used for the same components.

[0019] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] In order to make the content of this utility model be more clearly understood, the following will, in conjunction with the accompanying drawings in the embodiments of this utility model, clearly and completely describe the technical solutions in the embodiments of this utility model.

[0023] Please refer specifically to the attached Figure 1-2 , a denture bridge positioning mechanism, which includes two crowns 1 arranged at intervals and a prosthetic tooth 2 arranged between the two crowns 1. Limiting grooves 3 are concavely arranged near the prosthetic tooth 2 on the two crowns 1. A chamber 4 is arranged inside the prosthetic tooth 2. Slide openings 5 that penetrate the outer wall of the prosthetic tooth 2 and are arranged in cooperation with the two limiting grooves 3 are arranged on both sides of the chamber 4. Locking blocks 6 are slidably arranged in the slide openings 5. The locking of the prosthetic tooth 2 is completed through the cooperation of the locking blocks 6 and the limiting grooves 3.

[0024] An elastic driving member for simultaneously controlling the locking blocks 6 on both sides is connected and arranged inside the chamber 4. The elastic driving member includes a bottom sleeve 8 fixedly arranged inside the chamber 4 and a sleeve rod 9 sleeved inside the bottom sleeve 8. The upper end of the sleeve rod 9 extends to the upper part of the bottom sleeve 8. Linkage rods 10 are hinged between the two sides of the sleeve rod 9 and the two locking blocks 6 respectively. A channel for accommodating the sliding of the sleeve rod 9 is arranged inside the bottom sleeve 8, and a groove for preventing the sleeve rod 9 from rotating is also arranged in the channel. A groove block that is clamped into the groove is connected to the lower end of the sleeve rod 9 in cooperation with the groove. In order to facilitate elastic sliding, a support spring 11 connected to the inner bottom wall of the bottom sleeve 8 is connected to the bottom end of the sleeve rod 9.

[0025] During use, the upper end of the chamber 4 is clamped and provided with a sealing patch 7. When the sealing patch 7 is clamped with the chamber 4, the upper end of the elastic driving member abuts against the lower end of the sealing patch 7. Specifically, the chamber 4 is circular in top view, the sealing patch 7 is arranged to cooperate with the chamber 4, and convex blocks 12 are convexly provided at both ends of the sealing patch 7. Limiting slide rails 13 which are arranged in an L shape along the inner wall of the chamber 4 from top to bottom are concavely provided on both sides of the chamber 4. A positioning groove 14 is concavely provided on the upper wall of the short arm end of the limiting slide rail 13. During installation, the sealing patch 7 is pressed, and the convex blocks 12 slide in the limiting slide rails. When sliding to the lowest point of the limiting slide rails, the sealing patch 7 is rotated so that the convex blocks 12 slide to the ends of the short arm ends of the limiting slide rails 13. After releasing the hand, the sealing patch 7 moves upward under the action of the support spring, and the convex blocks 12 slide into the positioning grooves 14 to complete positioning. During this process, the movement of the locking block 6 is controlled by the height change of the linkage rod 10 which is hinged at both ends to complete locking.

[0026] For the convenience of subsequent use, the lower end wall of the sealing patch 7 and the upper end wall of the sleeve rod 9 are both provided as smooth planes, which is convenient for rotation after pressing the sealing patch 7 during disassembly.

[0027] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0028] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding which are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0029] The above describes the present utility model and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those skilled in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A denture bridge positioning mechanism, comprising two dental crowns (1) arranged at an interval and a restoration tooth (2) arranged between the two dental crowns (1), characterized in that: A limiting groove (3) is provided inwardly on the two crowns (1) near the restoration tooth (2); a chamber (4) is provided in the restoration tooth (2); and slide openings (5) penetrating the outer wall of the restoration tooth (2) and cooperating with the two limiting grooves (3) are provided on both sides of the chamber (4); A locking block (6) is slidably provided in the slideway opening (5), an elastic driving member for simultaneously controlling the locking blocks (6) on both sides is connected in the chamber (4), and a closing patch (7) is provided at the upper end of the chamber (4), and when the closing patch (7) is locked with the chamber (4), the upper end of the elastic driving member is arranged to abut against the lower end of the closing patch (7).

2. A denture bridge positioning mechanism according to claim 1, characterized in that: The elastic driving member comprises a bottom sleeve (8) fixedly arranged in the chamber (4) and a sleeve rod (9) sleeved in the bottom sleeve (8); the upper end of the sleeve rod (9) extends to the upper part of the bottom sleeve (8); and linkage rods (10) are hingedly arranged on both sides of the sleeve rod (9) and between the two locking blocks (6).

3. A denture bridge positioning mechanism according to claim 2, characterized in that: The bottom end of the sleeve rod (9) is connected to a support spring (11) which is connected to the inner bottom wall of the bottom sleeve (8).

4. A denture bridge positioning mechanism according to claim 3, characterized in that: The chamber (4) is circular when viewed from above. The closed patch (7) is arranged in conjunction with the chamber (4). Both ends of the closed patch (7) are provided with protruding blocks (12). Both sides of the chamber (4) are provided with concave limit slide rails (13) arranged in an L shape from top to bottom along the inner wall of the chamber (4). The upper wall of the short arm end of the limit slide rail (13) is provided with a positioning groove (14).

5. A denture bridge positioning mechanism according to claim 4, characterized in that: The lower end wall of the sealing patch (7) and the upper end wall of the sleeve rod (9) are both smooth planes.

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