Single-rod orthodontic traction device with stepless adjustment

Abstract

The utility model relates to the field of orthodontics, and discloses a single-rod orthodontic traction device with stepless adjustment, which comprises a support rod (1), a forehead pad (2) and a lower jaw pocket (3), the lower jaw pocket (3) is fixedly connected with the supporting rod (1) through an adjusting assembly, and the adjusting assembly comprises a fixing part (4) in the middle, a rotating part (5) installed on the fixing part (4) and a locking part (6). The locking part (6) is used for adjusting the friction force between the fixed part (4) and the rotating part (5), and when the locking part (6) does not lock and fix the fixed part (4) and the rotating part (5), the rotating part (5) can rotate relative to the fixed part (4). The tractor can meet the requirements of different users, and is neat and attractive in exterior and comfortable to wear.

Description

Technical Field

[0001] This utility model relates to the field of orthodontics, and in particular to a single-bar orthodontic traction device with stepless adjustment. Background Technology

[0002] The applicant previously applied for CN208659594U-Front Traction Device and Headband-type Front Traction Device. The front traction device boasts advantages such as reliable connection and comfortable wear. The silicone pads are removable and washable, reducing product operating costs and increasing product lifespan. Furthermore, the headband-type front traction device offers a secure and stable fit, making it more convenient to wear and suitable for different head shapes. The pad design further enhances comfort, minimizes skin irritation, and makes it safer, especially suitable for children.

[0003] However, this solution has the following drawbacks: its chin pocket cannot be adjusted in angle and cannot be matched with different face shapes. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a single-bar orthodontic traction device with stepless adjustment.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A single-bar orthodontic traction device with stepless adjustment, including a support bar, a forehead pad, and a chin pocket;

[0007] Support rods, used as support components for mounting the forehead pad and chin pocket;

[0008] A forehead pad, used to fit the forehead, is fixedly installed at the upper end of a support rod;

[0009] The chin pocket has a storage space for supporting the chin and is fixedly installed at the lower end of the support rod.

[0010] The chin support is fixedly connected to the support rod via an adjustment assembly. The adjustment assembly includes a fixed part in the middle, a rotating part installed with the fixed part, and a locking part. The locking part is used to adjust the friction between the fixed part and the rotating part. When the locking part does not lock the fixed part and the rotating part, the rotating part can rotate relative to the fixed part.

[0011] Preferably, the outer surface of the fixing part includes an arc-shaped surface, the rotating part includes a mounting opening, the fixing part is located inside the mounting opening, and the mounting opening is provided with a rotating surface corresponding to the arc-shaped surface.

[0012] Preferably, the outer side of the fixing part also includes a limiting surface one, and the inner side of the mounting port is provided with a corresponding limiting surface two.

[0013] Preferably, the curved surface is located at the front and rear ends of the fixing part.

[0014] Preferably, the limiting surface is located on the left side and / or right side of the fixing part.

[0015] Preferably, the locking part is a locking screw, and the rotating part has a locking threaded hole. The locking screw is installed in the locking threaded hole and can extend out to abut against the fixing part.

[0016] Preferably, the support rod has a non-circular cross-section, and a slot is provided in the middle of the fixing part. The cross-sectional shape of the slot is adapted to the shape of the support rod in the assembly part, and the fixing part is fixedly connected to the support rod through the slot.

[0017] Preferably, the edge of the bayonet has an opening for installing and fixing the support rod.

[0018] Preferably, the front end of the arc-shaped surface is a flat surface, which is a locking surface, and also includes a locking screw that abuts against the locking surface.

[0019] Compared with existing technologies, this solution has the following advantages: the angle can be infinitely adjusted, and the appearance is no different from conventional products, making it aesthetically pleasing and neat. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device.

[0021] Figure 2 for Figure 1 A sectional view.

[0022] Figure 3 This is a schematic diagram showing the interaction between the adjustment component and the support rod.

[0023] Figure 4 This is a schematic diagram showing the fit between the fixing part and the support rod.

[0024] Figure 5 This is a schematic diagram of the rotating part.

[0025] The technical names of the reference numerals in the figure are as follows: 1—support rod, 2—forehead pad, 3—chin pocket, 4—fixed part, 5—rotating part, 6—locking part, 7—arc-shaped surface, 8—rotating surface, 9—limiting surface one, 10—limiting surface two, 11—locking threaded hole, 12—bayonet, 13—opening. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] A single-bar orthodontic traction device with stepless adjustment includes a support bar 1, a forehead pad 2, and a mandibular pocket 3;

[0029] Support rod 1 serves as a support for mounting forehead pad 2 and chin pocket 3;

[0030] Forehead pad 2, used to fit the forehead, is fixedly installed on the upper end of support rod 1;

[0031] The chin pocket 3 has a placement space for supporting the chin, and the chin pocket 3 is fixedly installed at the lower end of the support rod 1;

[0032] The chin support 3 is fixedly connected to the support rod 1 via an adjusting assembly. The adjusting assembly includes a fixed part 4 in the middle, a rotating part 5 mounted on the fixed part 4, and a locking part 6. The locking part 6 is used to adjust the friction between the fixed part 4 and the rotating part 5. When the locking part 6 does not lock the fixed part 4 and the rotating part 5, the rotating part 5 can rotate relative to the fixed part 4. The rotating part 5 and the fixed part 4 are fixedly connected by screws. The connection method can be threaded fixing or friction fixing. This solution uses friction fixing, that is, the locking screw installed on the rotating part 5 abuts against the fixed part 4, so that the two cannot rotate relative to each other under the action of friction.

[0033] In this embodiment, the outer surface of the fixing part 4 includes an arc-shaped surface 7, and the rotating part 5 includes a mounting opening 14. The fixing part 4 is located inside the mounting opening 14, and the mounting opening 14 is provided with a rotating surface 8 corresponding to the arc-shaped surface 7. Specifically, in this solution, the arc-shaped surface 7 is located at the front end and the rear end, thereby facilitating the adjustment of the upward and downward tilt angles of the chin pocket 3. The chin pocket 3 is fixedly connected to the rotating part 5.

[0034] In this design, the outer surface of the fixing part 4 also includes a limiting surface 9, and the inner surface of the mounting port 14 is provided with a corresponding limiting surface 10. Both the limiting surface 9 and the limiting surface 10 are planar structures, thereby restricting the rotating part 5 to rotate only upwards or downwards.

[0035] In this design, the arc-shaped surface 7 is located at the front and rear ends of the fixing part 4. The limiting surface 9 is located on the left and / or right side of the fixing part 4, specifically the left and right sides.

[0036] In this embodiment, the locking part 6 is a locking screw, and the rotating part 5 has a locking threaded hole 11. The locking screw is installed in the locking threaded hole 11 and can extend out to abut against the fixing part 4. The specific fixing method can be frictional contact, or a matching limiting groove structure can be provided on the fixing part 4, etc., as long as both can be fixed or limited.

[0037] It also includes a fixing screw 30 and a limiting member 31, which are installed at the other end of the fixing part 4. The fixing part 4 includes a rod and a head at the end. A locking part 6 is fixedly installed on the head, and a chin pocket 3 is installed on the rod. Both ends are limited by the locking part 6 and the limiting member 31, respectively.

[0038] In this embodiment, the support rod 1 has a non-circular cross-section. A latch 12 is provided in the middle of the fixing part 4. The cross-sectional shape of the latch 12 is adapted to the shape of the support rod 1 in the assembly part. The fixing part 4 is fixedly connected to the support rod 1 through the latch 12. An opening 13 is provided on the side of the latch 12 for installing and fixing the support rod 1.

[0039] Example 2

[0040] The difference between this embodiment and embodiment 1 is that the front end of the arc-shaped surface 7 is a flat surface, which is the locking surface, and the locking screw abuts against the locking surface.

[0041] Example 3

[0042] The difference between this embodiment and Embodiment 1 is that the fixing part 4 is made of metal.

[0043] Example 4

[0044] The difference between this embodiment and embodiment 1 is that the front and rear sides of the support rod 1 are flat, while the left and right sides are curved surfaces 7.

Claims

1. A single-bar orthodontic traction device with stepless adjustment, characterized in that: It includes a support rod (1), a forehead pad (2), and a chin pocket (3); Support rod (1) is used as a support for mounting forehead pad (2) and chin pocket (3); Forehead pad (2), used to fit on the forehead, is fixedly installed on the upper end of the support rod (1); The chin pocket (3) has a placement space for supporting the chin, and the chin pocket (3) is fixedly installed at the lower end of the support rod (1); The chin cup (3) is fixedly connected to the support rod (1) through an adjustment assembly. The adjustment assembly includes a fixing part (4) in the middle, a rotating part (5) installed with the fixing part (4), and a locking part (6). The locking part (6) is used to adjust the friction between the fixing part (4) and the rotating part (5). When the locking part (6) does not lock the fixing part (4) and the rotating part (5), the rotating part (5) can rotate relative to the fixing part (4).

2. The single-bar orthodontic traction device with stepless adjustment according to claim 1, characterized in that: The outer surface of the fixing part (4) includes an arc-shaped surface (7), the rotating part (5) includes a mounting port (14), the fixing part (4) is located inside the mounting port (14), and the mounting port (14) is provided with a rotating surface (8) corresponding to the arc-shaped surface (7).

3. The single-bar orthodontic traction device with stepless adjustment according to claim 2, characterized in that: The outer side of the fixing part (4) also includes a limiting surface one (9), and the inner side of the mounting port (14) is provided with a corresponding limiting surface two (10).

4. The single-bar orthodontic traction device with stepless adjustment according to claim 2, characterized in that: The curved surface (7) is located at the front end and rear end of the fixing part (4).

5. The single-bar orthodontic traction device with stepless adjustment according to claim 3, characterized in that: The limiting surface 1 (9) is located on the left side and / or right side of the fixing part (4).

6. The single-bar orthodontic traction device with stepless adjustment according to any one of claims 1 to 5, characterized in that: The locking part (6) is a locking screw, and the rotating part (5) has a locking thread hole (11). The locking screw is installed in the locking thread hole (11) and can extend out to abut against the fixing part (4).

7. The single-bar orthodontic traction device with stepless adjustment according to any one of claims 1 to 5, characterized in that: The cross-section of the support rod (1) is a non-circular structure. A slot (12) is provided in the middle of the fixing part (4). The cross-sectional shape of the slot (12) is adapted to the shape of the support rod (1) of the assembly part. The fixing part (4) is fixedly connected to the support rod (1) through the slot (12).

8. The single-bar orthodontic traction device with stepless adjustment according to claim 7, characterized in that: The bayonet (12) has an opening (13) on its side for installing and fixing the support rod (1).

9. The single-bar orthodontic traction device with stepless adjustment according to claim 2, characterized in that: The front end of the arc-shaped surface (7) is a flat surface, which is a locking surface and also includes a locking screw, which abuts against the locking surface.

10. The single-bar orthodontic traction device with stepless adjustment according to claim 1, characterized in that: It also includes a fixing screw (30) and a limiting member (31), the fixing screw (30) and the limiting member (31) are installed at the other end of the fixing part (4), the fixing part (4) includes a rod and a head at the end, a locking part (6) is fixedly installed on the head, and a chin pocket (3) is installed on the rod, with the two ends respectively limited by the locking part (6) and the limiting member (31).

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