Plug pin type push rod for bracket-free invisible appliance

Abstract

The plug pin type push rod comprises two fixed brackets, a transfer rod arranged between the two fixed brackets and lantern rings connected to the two ends of the transfer rod, the transfer rod comprises an outer barrel and an inner rod body which are matched with each other, an inner cavity of the outer barrel is formed in the side, facing the inner rod body, of the outer barrel, and the inner cavity of the outer barrel is communicated with the inner rod body. One end of the inner rod body is inserted into the outer cylinder in a matched mode, a plurality of installation holes are tapped in the outer cylinder and the inner rod body in the vertical direction, a bolt is installed in one installation hole, a nut abutting against the outer cylinder is screwed at the bottom of the bolt, sealing strips are inserted into the other installation holes in a matched mode, and extension blocks are fixedly connected to the outer walls of the two lantern rings. The opposite ends of the outer cylinder body and the inner rod body are connected to the two extending blocks correspondingly. According to the bolt type push rod for the bracket-free invisible orthodontic appliance, the actual length of the transfer rod can be adjusted as required, different orthodontic requirements are met, and the application range of the push rod is enlarged.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a pin-type push rod for a bracketless invisible orthodontic appliance. Background Art

[0002] In recent years, bracketless invisible braces technology has used transparent braces for orthodontic treatment, overcoming the weaknesses of traditional fixed braces in terms of aesthetics and comfort. Bracketless invisible braces require a pin-type push rod to be used normally. For its specific technical principles, please refer to the patent application number CN202021463139.7 - a pin-type push rod and appliance for bracketless invisible braces.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in this technology: the connecting rod length of the current pin-type push rod of the bracketless invisible braces is mostly non-adjustable, which makes it impossible to adapt to the teeth correction needs of different people, resulting in a small scope of application of the push rod.

[0004] To this end, we propose a pin-type push rod for bracketless invisible braces to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a pin-type push rod for a bracketless invisible braces, so that the actual length of the transfer rod can be adjusted according to needs, meeting different correction needs, increasing the application scope of the push rod, and effectively solving the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A latch-type push rod for a bracketless invisible orthodontic appliance, comprising two fixed brackets, a transfer rod arranged between the two fixed brackets and a collar connected to both ends of the transfer rod, the transfer rod comprising an outer cylinder and an inner rod body that cooperate with each other, wherein the inner cavity of the outer cylinder is opened on the side thereof facing the inner rod body, one end of the inner rod body is inserted into the outer cylinder, and a plurality of mounting holes are tapped on the outer cylinder and the inner rod body in the vertical direction, a bolt is installed in one of the mounting holes, a nut that abuts against the outer cylinder is screwed on the bottom of the bolt, and sealing strips are inserted into the remaining mounting holes, extension blocks are fixedly connected to the outer walls of the two collars, and the ends of the outer cylinder and the inner rod body that are opposite to each other are respectively connected to the two extension blocks.

[0008] As a preferred embodiment, columns are provided on the top walls of the two fixed brackets, and the two columns are respectively inserted into the inner sides of the two collars; thus, the two collars are confined on the two fixed brackets by the two columns.

[0009] As a preferred embodiment, turntables are coaxially connected to the tops of the two columns, and the turntables are in contact with the top walls of the collar; wherein the collar is in contact with the top wall of the fixed support, so that the collar is defined on the fixed support.

[0010] As a preferred embodiment, bottom grooves are formed on the top walls of the two fixed supports, screw rods are coaxially connected to the lower parts of the two columns respectively, and the two screw rods are respectively threaded into the two fixed supports; thereby fixing the turntables and columns on the fixed supports, making the collar structure stable.

[0011] As a preferred embodiment, an annular groove is formed between the collar and the column, and an extension strip is fitted and inserted into the annular groove; the material of the extension strip can be selected as rubber, which is used to make the connection between the collar and the column closer.

[0012] In summary, the technical effects and advantages of the present utility model are as follows:

[0013] For the pin-type push rod of the bracketless invisible orthodontic appliance, by setting the intermediate rod as a combined outer cylinder and inner rod body, the inner rod body is inserted into the designated position of the outer cylinder and fixed by bolts and nuts, so that the actual length of the intermediate rod can be adjusted according to needs, meeting different orthodontic requirements and increasing the application range of the push rod;

[0014] For the pin-type push rod of the bracketless invisible orthodontic appliance, by threading two screw rods into two fixed supports and using the turntables and columns to fix the two collars, the two collars can be removed, and the collars and the intermediate rod can be replaced and maintained, making the maintenance more convenient. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a sectional view of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 The enlarged view of the structure at A in.

[0018] In the figure: 1, fixed support; 2, intermediate rod; 3, collar; 4, outer cylinder; 5, inner rod body; 6, bolt; 7, sealing strip; 8, turntable; 9, column; 10, extension strip; 11, bottom groove; 12, screw rod; 13, extension block; 14, nut. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Referring to Figures 1 - 3 , a pin-type push rod for a bracketless invisible orthodontic appliance, comprising two fixed brackets 1, a transfer rod 2 disposed between the two fixed brackets 1, and collar rings 3 connected to both ends of the transfer rod 2. The transfer rod 2 includes a mutually cooperating outer cylinder 4 and inner rod body 5. The inner cavity of the outer cylinder 4 is opened on the side facing the inner rod body 5. One end of the inner rod body 5 is snugly inserted into the outer cylinder 4. Multiple mounting holes are tapped vertically on the outer cylinder 4 and the inner rod body 5. A bolt 6 is installed in one of the mounting holes, and a nut 14 that abuts against the outer cylinder 4 is screwed at the bottom of the bolt 6. Sealing strips 7 are snugly inserted into the remaining mounting holes. Extension blocks 13 are fixedly connected to the outer walls of both collar rings 3. The opposite ends of the outer cylinder 4 and the inner rod body 5 are respectively connected to the two extension blocks 13, so that the outer cylinder 4 and the inner rod body 5 are fixed to the two collar rings 3;

[0021] Columns 9 are provided on the top walls of both fixed brackets 1, and the two columns 9 are respectively inserted into the inner sides of the two collar rings 3, so that the two collar rings 3 are limited to the two fixed brackets 1 by the two columns 9. Turntables 8 are coaxially connected to the tops of the two columns 9, and the turntables 8 abut against the top walls of the collar rings 3. The collar rings 3 abut against the top walls of the fixed brackets 1, so that the collar rings 3 are limited to the fixed brackets 1. Bottom grooves 11 are formed on the top walls of both fixed brackets 1. Screws 12 are coaxially connected to the lower sides of the two columns 9, and the two screws 12 are respectively threaded into the two fixed brackets 1, so as to fix the turntables 8 and the columns 9 to the fixed brackets 1, making the structure of the collar rings 3 stable. An annular groove is formed between the collar rings 3 and the columns 9, and an extension strip 10 is snugly inserted into the annular groove. The material of the extension strip 10 can be selected as rubber, which is used to make the connection between the collar rings 3 and the columns 9 tighter.

[0022] For the pin-type push rod for a bracketless invisible orthodontic appliance: First, fit the two collar rings 3 against the top walls of the two fixed brackets 1 respectively. Insert the two columns 9 into the inner sides of the two collar rings 3 by holding the two turntables 8. After the screws 12 enter the bottom grooves 11, rotate the turntables 8 to drive the columns 9 and the screws 12 to rotate accordingly, so that the columns 9 and the screws 12 gradually enter the fixed brackets 1. Finally, make both the two extension strips 10 and the two screws 12 in the position where they are located, that is, the fixation of the collar rings 3 and the transfer rod 2 is completed; Then, adjust the relative positions of the outer cylinder 4 and the inner rod body 5 according to actual needs, make the inner rod body 5 slide in the outer cylinder 4, and make the mounting holes on the outer cylinder 4 and the inner rod body 5 match. Tap a bolt 6 into the mounting hole and fix the position of the bolt 6 with a nut 14. Fill the remaining mounting holes with sealing strips 7. At this time, the installation of the pin-type push rod is completed. Figure 3 The position where they are located, that is, the fixation of the collar rings 3 and the transfer rod 2 is completed; Then, adjust the relative positions of the outer cylinder 4 and the inner rod body 5 according to actual needs, make the inner rod body 5 slide in the outer cylinder 4, and make the mounting holes on the outer cylinder 4 and the inner rod body 5 match. Tap a bolt 6 into the mounting hole and fix the position of the bolt 6 with a nut 14. Fill the remaining mounting holes with sealing strips 7. At this time, the installation of the pin-type push rod is completed.

[0023] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A pin-type push rod for a bracketless invisible orthodontic appliance, comprising two fixed brackets (1), a transfer rod (2) disposed between the two fixed brackets (1), and collars (3) connected to both ends of the transfer rod (2), characterized in that, The transfer rod (2) includes a mutually cooperating outer cylinder body (4) and an inner rod body (5). The inner cavity of the outer cylinder body (4) is opened on the side facing the inner rod body (5). One end of the inner rod body (5) is inserted into the outer cylinder body (4) in a fitting manner. A plurality of mounting holes are drilled vertically on the outer cylinder body (4) and the inner rod body (5). A bolt (6) is installed in one of the mounting holes, and a nut (14) that abuts against the outer cylinder body (4) is screwed at the bottom of the bolt (6). Sealing strips (7) are inserted into the remaining mounting holes in a fitting manner. Extension blocks (13) are fixedly connected to the outer walls of the two collar rings (3). The opposite ends of the outer cylinder body (4) and the inner rod body (5) are respectively connected to the two extension blocks (13).

2. The pin-type push rod for a bracketless invisible orthodontic appliance according to claim 1, wherein Columns (9) are provided on the top walls of the two fixed brackets (1), and the two columns (9) are respectively inserted into the inner sides of the two collar rings (3).

3. The pin-type push rod for a bracketless invisible orthodontic appliance according to claim 2, wherein, Rotary disks (8) are coaxially connected to the tops of the two columns (9), and the rotary disks (8) abut against the top walls of the collar rings (3).

4. The pin-type push rod for a bracketless invisible orthodontic appliance according to claim 3, wherein, Bottom grooves (11) are formed on the top walls of the two fixed brackets (1). Screws (12) are coaxially connected below the two columns (9), and the two screws (12) are respectively threaded into the two fixed brackets (1).

5. The pin-type push rod for a bracketless invisible orthodontic appliance according to claim 3, wherein An annular groove is formed between the collar ring (3) and the column (9), and an extension strip (10) is inserted into the annular groove in a fitting manner.

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