Bendable dental light curing machine

Abstract

The utility model relates to a bendable dental photocuring machine which comprises a machine head and a handle, the machine head comprises a rotary joint and a fixed joint, the rotary joint is rotatably mounted on the fixed joint, the fixed joint is provided with a first inclined plane, the rotary joint is provided with a second inclined plane, and the second inclined plane is attached to the first inclined plane. The first inclined surface and the second inclined surface are circular; the fixed joint is connected with the handle. The rotary joint is provided with a light source. The rotary joint is connected with the fixed joint in a mode that the first inclined plane is attached to the second inclined plane, and the rotary joint rotates around the central point of the first inclined plane, so that the included angle between the axis of the rotary joint and the axis of the fixed joint is changed; therefore, the angle between the direction of light emitted by the dental light curing machine and the axis of the handle is adjustable.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a dental light curing machine. Background Art

[0002] A dental curing light is a device for restoring teeth. The light radiation it emits enables light-curing resin to polymerize and cure quickly and effectively in a short period of time.

[0003] Existing dental curing light units consist of a handle and a head. For example, Chinese Patent Publication No. CN103550008A discloses a curing light unit comprising a main unit, a light guide connected to the front end of the main unit, and a power supply connected to the rear end of the main unit. This curing light unit enables rapid and efficient polymerization and curing of light-curable resins in a short period of time.

[0004] However, in actual use, it was discovered that the handle and handpiece are rigid structures. For example, the main unit of a dental curing light disclosed in the aforementioned Chinese patent is a linear structure that is fixed and cannot turn. This makes it impossible to effectively adjust the angle between the direction of the light emitted by the dental curing light and the axis of the handle. The angle and position of the light can only be accurately adjusted by adjusting the position of the handle or changing the doctor's grip. However, this places a greater strain on the doctor's body, and long-term work can easily lead to occupational diseases. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bendable dental light curing machine, wherein the angle between the direction of light emitted by the dental light curing machine and the axis of the handle is adjustable.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A bendable dental light curing machine includes a head and a handle. The head includes a rotating joint and a fixed joint. The rotating joint is rotatably mounted on the fixed joint. The fixed joint is provided with a first inclined surface. The rotating joint is provided with a second inclined surface. The second inclined surface is in contact with the first inclined surface. The first inclined surface and the second inclined surface are circular. The fixed joint is connected to the handle. The rotating joint is provided with a light source.

[0008] As a further improvement of the above technical solution:

[0009] A rotating shaft protrudes from the center of the second inclined surface, and a rotating hole is provided at a position of the first inclined surface opposite to the rotating shaft, and the rotating shaft is rotatably inserted into the rotating hole.

[0010] A bendable dental light curing machine also includes an O-ring. An annular groove is provided on the outer surface of the rotating shaft, and the O-ring can be embedded in the annular groove.

[0011] There are multiple O-rings, and the multiple O-rings are arranged along the axial direction of the rotating shaft.

[0012] A circular circuit board is provided on the end surface of the rotating shaft, and the circular circuit board is connected to the light source.

[0013] The fixed joint is provided with a conductive elastic pin, which is connected to the circular circuit board.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The rotary joint and the fixed joint of the utility model are connected in a manner that the first inclined surface and the second inclined surface are fitted together, and the rotary joint rotates around the center point of the first inclined surface to change the angle between the axis of the rotary joint and the axis of the fixed joint, thereby achieving adjustable angle between the direction of light emitted by the dental curing light and the axis of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a dental curing light.

[0017] Figure 2 It is a three-dimensional diagram of a rotary joint.

[0018] Figure 3 It is a cross-sectional view of the nose.

[0019] Figure 4 It is a simplified diagram of the rotation of the rotary joint.

[0020] Description of reference numerals:

[0021] 1. Handpiece; 2. Handle; 3. O-ring; 11. Rotating joint; 12. Fixed joint; 13. Light source; 14. Rotating shaft; 15. Circular circuit board; 16. Conductive spring pin; 17. Rotating head; 18. Base; 19. Bump. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the technical solution of the present invention is further described in detail in a non-limiting manner in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figures 1 to 3 As shown, the bendable dental light curing device includes a head 1 and a handle 2. The head 1 includes a rotating joint 11 and a fixed joint 12. The rotating joint 11 is rotatably mounted on the fixed joint 12. The fixed joint 12 has a first inclined surface. The rotating joint 11 has a second inclined surface. The second inclined surface is aligned with the first inclined surface. The first and second inclined surfaces are circular. The fixed joint 12 is connected to the handle 2. The rotating joint 11 has a light source 13. Figure 4As shown in the simplified rotation diagram of the rotary joint 11, the first inclined surface is in contact with the second inclined surface, the angle between the connecting surface between the first inclined surface and the second inclined surface and the horizontal plane is а, and the rotary joint 11 rotates around the center point of the first inclined surface to achieve bending of the rotary joint 11, and the bending angle β of the rotary joint 11 is twice а.

[0024] A rotating shaft 14 protrudes from the center of the second inclined surface, and a rotating hole is provided at a position of the first inclined surface relative to the rotating shaft 14, and the rotating shaft 14 can be rotatably inserted into the rotating hole. The dental light curing machine also includes an O-ring 3, and an annular groove is provided on the outer surface of the rotating shaft 14, and the O-ring 3 can be embedded in the annular groove. There are multiple O-rings 3, and multiple O-rings 3 are arranged along the axial direction of the rotating shaft 14. The rotating shaft 14 is arranged on the second inclined surface to be inserted into the rotating hole of the first inclined surface, which not only guides the rotary joint 11 to rotate around the center point of the first inclined surface, but also makes the second inclined surface not easily detached from the first inclined surface. The O-ring 3 is arranged between the rotating shaft 14 and the inner wall of the rotating hole, which not only makes the rotary joint 11 not easily detached from the fixed joint 12, but also allows the rotary joint 11 to achieve damped rotation, thereby playing a role in maintaining the rotation angle.

[0025] Among them, a circular circuit board 15 is provided on the end face of the rotating shaft 14, and the circular circuit board 15 is connected to the light source 13. The fixed joint 12 is provided with a conductive spring pin 16, and the conductive spring pin 16 is connected to the circular circuit board 15. The rotating joint 11 is designed with a circular circuit board 15, and the fixed joint 12 is designed with a conductive spring pin 16. The conductive spring pin 16 is installed eccentrically to ensure that the circuit is connected during rotation and prevent the circuit from being torn off during rotation. The conductive spring pin 16 is usually made of components such as a needle shaft, a needle tube, and a spring through riveting and pre-pressing with precision instruments to form a spring-type probe; the conductive spring pin 16 serves as a connector and is connected to the circular circuit board 15 to establish a reliable electrical connection on the circuit board to ensure stable transmission of signals or currents.

[0026] The rotary joint 11 includes a rotary head 17 and a base 18, and the rotary head 17 rotates on the base 18. The rotary head 17 is provided with a protrusion 19, and the base 18 is provided with a groove. The protrusion 19 can be rotatably embedded in the groove. An O-ring 3 is also connected between the protrusion 19 and the inner wall of the groove. Not only does it prevent the rotary head 17 from easily separating from the base 18, but it also allows the rotary head 17 to achieve damped rotation, thereby maintaining the rotation angle. The rotary joint 11 can be adjusted and maintained at different angles according to the actual use needs of the doctor, and the irradiation direction of the rotary head 17 can also be adjusted, greatly improving the flexibility of the rotary joint 11.

[0027] It should be understood that all the above embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the above-described specific embodiments under the concept of the present invention should be within the scope of protection of the present invention.

Claims

1. A bendable dental curing light, characterized by: The invention comprises a machine head (1) and a handle (2), wherein the machine head (1) comprises a rotary joint (11) and a fixed joint (12), wherein the rotary joint (11) is rotatably mounted on the fixed joint (12), wherein the fixed joint (12) is provided with a first inclined surface, and the rotary joint (11) is provided with a second inclined surface, wherein the second inclined surface is in contact with the first inclined surface, and the first inclined surface and the second inclined surface are circular; the fixed joint (12) is connected to the handle (2), and the rotary joint (11) is provided with a light source (13).

2. The dental curing light according to claim 1, wherein: A rotating shaft (14) is protruded from the center of the second inclined surface, and a rotating hole is provided at a position of the first inclined surface relative to the rotating shaft (14), and the rotating shaft (14) can be rotatably inserted into the rotating hole.

3. The dental light curing machine according to claim 1 or 2, characterized in that: It also includes an O-ring (3). The outer surface of the rotating shaft (14) is provided with an annular groove, and the O-ring (3) can be embedded in the annular groove.

4. The dental curing light according to claim 3, wherein: A plurality of O-rings (3) are provided, and the plurality of O-rings (3) are arranged along the axial direction of the rotating shaft (14).

5. The dental curing light according to claim 4, wherein: A circular circuit board (15) is provided on the end surface of the rotating shaft (14), and the circular circuit board (15) is connected to the light source (13).

6. The dental curing light according to claim 5, characterized in that: The fixed joint (12) is provided with a conductive elastic pin (16), and the conductive elastic pin (16) is connected to the circular circuit board (15).

7. The dental light curing machine according to claim 1 or 6, characterized in that: The rotary joint (11) comprises a rotary head (17) and a base (18), and the rotary head (17) rotates on the base (18).

8. The dental curing light according to claim 7, wherein: The rotating head (17) is provided with a convex block (19), and the base (18) is provided with a groove, and the convex block (19) can be rotatably embedded in the groove.

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