Universal type tooth protection bend connector and universal type tooth protection bend

Abstract

The utility model discloses a universal type tooth protection bend connector and a universal type tooth protection bend, which comprise a shell and a transmission assembly rotatably arranged in the shell, and the transmission assembly comprises a driving shaft and a driving gear fixedly arranged at the top end of the driving shaft. As a standardized connector, various tooth protection corners, polishing cups and polishing brushes can be connected with the oral cavity handpiece through the connector, so that compatibility can be realized no matter how the styles change.

Description

Technical Field

[0001] This utility model relates to dental care equipment, specifically to a universal tooth-protecting bend connector and a universal tooth-protecting bend. Background Technology

[0002] Currently, there are many dental handpieces on the market, along with matching bends, polishing cups, and polishing brushes. Due to the wide variety and diverse styles, dental handpieces are often incompatible with the various bends, polishing cups, and polishing brushes available. Furthermore, each polishing brush typically uses a drive shaft, and the concentricity of drive shafts made of plastic components is often not guaranteed, causing considerable inconvenience for users. Summary of the Invention

[0003] To address the above technical problems, the purpose of this utility model is to provide a universal dental handpiece bend connector that can be used with most dental handpieces on the market, and to effectively reduce the cost of using dental handpiece bends.

[0004] To achieve the above objectives, the technical solution of this utility model is a universal tooth-protecting bend connector, including a housing and a transmission component rotatably disposed within the housing. The transmission component includes a drive shaft and a drive gear fixedly disposed at the top of the drive shaft.

[0005] In the above technical solution, the drive shaft is made of metal material, such as stainless steel.

[0006] A preferred technical solution includes a secondary drive shaft, one end of which is provided with the drive gear, and the other end is fixedly connected to the drive shaft.

[0007] In the above technical solution, the end of the secondary drive shaft is provided with a concave limiting step, which facilitates axial limiting after insertion into the housing.

[0008] In a further technical solution, the end of the secondary drive shaft is provided with a drive shaft mounting groove, the drive shaft mounting groove is provided with an internal thread or a slot, and the end of the drive shaft is provided with an external thread or a protrusion that mates with the internal thread or slot.

[0009] A preferred technical solution includes at least two bearings, the bearings being disposed in the middle of the drive shaft, the drive shaft passing through the bearings, the inner ring of the bearings being fixedly connected to the drive shaft, and the outer ring of the bearings being fixedly connected to the housing.

[0010] In the above technical solution, the preferred number of bearings is four or more.

[0011] In the above technical solution, the arrangement of multiple bearings can provide radial limiting effect on the drive shaft, thereby increasing the stability of the drive shaft.

[0012] In a further technical solution, the drive shaft consists of a front part and a rear part, the diameter of the rear part is larger than the diameter of the front part, the bearing is disposed in the front part, and the inner ring diameter of the bearing matches the diameter of the front part.

[0013] In a further technical solution, the housing is provided with multiple bearing grooves, which are spaced apart, and the bearing is fixedly installed in the bearing grooves.

[0014] In a further technical solution, the housing is provided with a drive shaft groove for placing the drive shaft, and the diameter of the drive shaft groove is smaller than that of the bearing groove.

[0015] In the above technical solution, the spacing of multiple bearing slots can increase the radial limiting effect of the drive shaft; the diameter difference between the drive bearing and the bearing slot can limit the axial movement of the drive shaft, making the drive shaft more stable during operation.

[0016] In a preferred embodiment, the housing is provided with a limiting notch that mates with a dental handpiece.

[0017] In the above technical solution, the limiting notch is used to assist in the connection between the universal toothbrush bend connector and the dental handpiece.

[0018] A universal toothbrush bend includes the aforementioned universal toothbrush bend connector.

[0019] The advantages of this utility model are:

[0020] 1. This utility model is a standardized connector that allows various tooth-protecting bends, polishing cups, and polishing brushes to be connected to dental handpieces, thus ensuring compatibility regardless of style variations;

[0021] 2. This utility model uses high-quality materials to make the drive shaft, such as metal materials, which can improve concentricity;

[0022] 3. The transmission system design of this utility model can ensure the stability and durability of the tooth-protecting bend angle;

[0023] 4. This utility model, through standardized design and mass production, can reduce the manufacturing cost of tooth-protecting bends, while simplifying the manufacturing process and improving production efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is an exploded view of the present invention;

[0028] Figure 3 This is a half section of the present invention. Figure 1 ;

[0029] Figure 4 This is a half section of the present invention. Figure 2 ;

[0030] Figure 5 This is a schematic diagram of the transmission component of this utility model;

[0031] Figure 6 This is a half-sectional view of the transmission component of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of Example 2;

[0033] Figure 8 This is an exploded view of Example 2.

[0034] The components are: 1. Housing; 2. Drive shaft; 3. Secondary drive shaft; 4. Drive gear; 5. Bearing; 6. Limiting step; 7. Limiting notch; 8. Front part; 9. Rear part; 10. Universal toothed bend connector; 11. Toothed bend. Detailed Implementation

[0035] Example 1: As Figure 1 As shown, a universal tooth-protecting bend connector includes a housing 1 and a transmission component rotatably disposed within the housing 1. The transmission component includes a drive shaft 2 and a secondary drive shaft 3. One end of the secondary drive shaft 3 is provided with a drive gear 4, and the other end is fixedly connected to the drive shaft 2.

[0036] The secondary drive shaft 3 has a drive shaft mounting groove at its end, and an internal thread is provided in the drive shaft mounting groove. The drive shaft 2 has an external thread that mates with the internal thread at its end. The secondary drive shaft 3 also has a recessed limiting step 6 at its end.

[0037] It includes four bearings 5, which are located in the middle of the drive shaft 2. The drive shaft 2 passes through the bearings 5, the inner ring of the bearings 5 ​​is fixedly connected to the drive shaft 2, and the outer ring of the bearings 5 ​​is fixedly connected to the housing 1.

[0038] The drive shaft 2 consists of a front part and a rear part. The diameter of the rear part is larger than that of the front part. The diameter of the front part is 0.08 mm, and the diameter of the rear part is 0.09 mm.

[0039] Bearing 5 is located at the front, and the inner ring diameter of bearing 5 matches the diameter of the front part.

[0040] The housing 1 has two bearing slots, which are spaced apart. Four bearings 5 ​​are fixedly installed in the two bearing slots in pairs.

[0041] The housing 1 is provided with a drive shaft groove for placing the drive shaft 2, and the diameter of the drive shaft groove is smaller than that of the bearing groove.

[0042] The housing 1 is provided with a limiting notch 7 that mates with a dental handpiece.

[0043] How to use this embodiment:

[0044] The universal toothbrush bend connector connects directly to the dental handpiece at the end, and the toothbrush bend is installed at the front end for immediate use.

[0045] Example 2: As Figure 7 , 8 As shown, a universal toothbrush bend includes a universal toothbrush bend connector 10 and a toothbrush bend 11. The toothbrush bend 11 can be of various types. Inside the toothbrush bend 11, a driven gear is provided that meshes with a driving gear 4 to transmit the kinetic energy of the universal toothbrush bend connector 10 to the moving part at the head of the toothbrush bend 11. The shape of the teeth of the driving gear 4 can be rectangular, wedge-shaped, etc.

Claims

1. A universal dental guard elbow connector, characterized by: The device includes a housing and a transmission assembly rotatably disposed within the housing. The transmission assembly includes a drive shaft and a drive gear fixedly disposed at the top end of the drive shaft. It also includes a secondary drive shaft, one end of which is provided with the drive gear and the other end of which is fixedly connected to the drive shaft. The end of the secondary drive shaft is provided with a drive shaft mounting groove, the drive shaft mounting groove being provided with an internal thread or a slot, and the end of the drive shaft being provided with an external thread or a protrusion that mates with the internal thread or slot.

2. The universal dental guard elbow connector of claim 1, wherein: It includes at least two bearings, which are disposed in the middle of the drive shaft, through which the drive shaft passes. The inner ring of the bearing is fixedly connected to the drive shaft, and the outer ring of the bearing is fixedly connected to the housing.

3. A universal dental guard elbow connector as defined in claim 2, wherein: The drive shaft consists of a front part and a rear part, the diameter of the rear part is larger than the diameter of the front part, the bearing is disposed in the front part, and the inner ring diameter of the bearing matches the diameter of the front part.

4. The universal dental guard elbow connector of claim 2, wherein: The housing is provided with multiple bearing grooves, which are spaced apart, and the bearing is fixedly installed in the bearing grooves.

5. A universal dental guard elbow connector as defined in claim 4, wherein: The housing is provided with a drive shaft groove for placing the drive shaft, and the diameter of the drive shaft groove is smaller than that of the bearing groove.

6. The universal dental guard elbow connector of claim 1, wherein: The housing is provided with a limiting notch for use with a dental handpiece.

7. A universal dental guard corner, characterized by: Includes the universal tooth-protecting bend connector as described in any one of claims 1-6.

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