Assembled ultrasonic tooth cleaning handle

Abstract

The utility model discloses an assembled ultrasonic tooth cleaning handle which comprises a working tip, the fixed cover is provided with a movable hole and a limiting assembly, the limiting assembly is located on the outer side of the movable hole, a lining is arranged at the end, located on the inner side of the fixed cover, of the movable hole, the work tip is arranged in the lining, and the end of the work tip penetrates through the movable hole and extends outwards; a butt joint and an inserting assembly are arranged at the end of the handle, and the inserting assembly is located on one side of the butt joint; when the fixing cover drives the work tip to rotate to be connected with the butt joint, the inserting assembly is matched with the limiting assembly, and the connecting position of the work tip and the butt joint is fastened. The limiting assembly on the fixing cover is matched with the inserting assembly at the end of the handle, when the fixing cover drives the work tip to rotate and be connected with the butt joint, the connecting position of the work tip and the butt joint is fastened, the stability of connection between the work tip and the handle is effectively enhanced, and the situation that the work tip is loosened in the working process is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of dental cleaning handles, specifically relating to an assembled ultrasonic dental cleaning handle. Background Technology

[0002] Currently, there are some issues with the connection between the working tip and the handle in ultrasonic scaling handpieces on the market. In traditional handpiece designs, after the working tip is installed, it is prone to loosening during operation because the working tip needs to withstand high-frequency vibration and a certain amount of external force. This loosening not only affects the cleaning effect, resulting in incomplete cleaning, but may also cause damage to the patient's oral tissues due to the shaking of the working tip, increasing the patient's pain and medical risks.

[0003] Secondly, the installation and removal of working tips in existing ultrasonic scaling handpieces are often cumbersome. Some handpieces require special tools to replace the working tips, which not only increases the workload of medical staff, but also may delay treatment time in emergency situations, such as when the working tip is damaged and needs to be replaced, because the tools cannot be found. In addition, the complicated installation and removal process also increases the risk of working tip damage and increases the cost of use.

[0004] Furthermore, some ultrasonic scaling handpieces have complex designs, containing multiple precision components. This complexity not only increases manufacturing costs but also makes repair and maintenance more difficult should a malfunction occur. Healthcare professionals need advanced skills and extensive experience to repair these handpieces, which to some extent limits the widespread adoption and application of ultrasonic scaling equipment.

[0005] Finally, during the docking process between the working tip and the handle, the existing handle lacks an effective limiting and fastening mechanism. When the working tip and the handle are connected, it is difficult to guarantee the accuracy and stability of the connection, and it is easy for the connection to be incomplete or over-connected. This will not only affect the normal operation of the handle, but may also shorten the service life of the handle. Utility Model Content

[0006] The purpose of this invention is to provide an assembled ultrasonic dental cleaning handle to solve one of the defects of the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An assembled ultrasonic dental scaler handpiece includes:

[0009] Working tip;

[0010] A fixed cover is provided with a movable hole and a limiting component. The limiting component is located outside the movable hole. A bushing is provided at one end of the movable hole located inside the fixed cover. The working tip is disposed in the bushing, and the end of the working tip extends outward through the movable hole.

[0011] The handle has a connector and a plug-in assembly at its end, with the plug-in assembly located on one side of the connector;

[0012] When the fixed cover drives the working tip to rotate and connect with the connector, the insertion component and the limiting component cooperate to tighten the connection between the working tip and the connector.

[0013] Furthermore, the working tip has an operating end and a mounting end, the operating end and the mounting end are an integral structure, the outer wall of the mounting end abuts against the inner wall of the bushing, and the operating end extends outward through the movable hole;

[0014] The limiting component includes a limiting groove, a first limiting unit, and a second limiting unit. Both the first limiting unit and the second limiting unit are disposed in the limiting groove, and the second limiting unit is located below the first limiting unit.

[0015] The plug-in assembly includes a fixed end and a hook end, the fixed end and the hook end are integrally formed, and the hook end is axially perpendicular to the fixed end;

[0016] When the mounting end of the working tip is connected to the connector of the handle, the fixed end is inserted into the limiting groove so that the hook end bends after passing through the second limiting unit and the first limiting unit, and hooks onto the surface of the first limiting unit to cooperate with the first limiting unit.

[0017] Furthermore, both the limiting groove and the plug-in assembly are annular structures.

[0018] Furthermore, the plug-in assembly and the mating connector are axially aligned.

[0019] Furthermore, the hook end abuts against the inner wall of the limiting groove.

[0020] Furthermore, the first limiting unit and the second limiting unit have the same structure.

[0021] Furthermore, the first limiting unit and the second limiting unit are hemispherical or rectangular structures.

[0022] Furthermore, the limiting groove coincides with the axial direction of the bushing.

[0023] Furthermore, the diameter of the movable hole is smaller than the diameter of the mounting end.

[0024] Furthermore, the working tip and the connector are screwed together.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The limiting component on the fixed cover cooperates with the plug component at the end of the handle to tighten the connection between the working tip and the connector when the fixed cover drives the working tip to rotate and connect with the connector. This effectively enhances the stability of the connection between the working tip and the handle and prevents the working tip from loosening during operation. Secondly, the existing ultrasonic scaler handles are relatively cumbersome to install and remove the working tip, and some require special tools. However, the design of this assembled ultrasonic scaler handle makes the installation and removal of the working tip more convenient and quick.

[0027] 2. The outer wall of the mounting end abuts against the inner wall of the bushing, further enhancing the connection stability between the working tip and the fixed cap. During operation, this effectively reduces the wobbling of the working tip, allowing for more precise cleaning of the teeth and lowering the risk of damage to the patient's oral tissues due to tip wobbling. The hook end hooks onto the surface of the first limiting unit, cooperating with it to not only increase the tightness of the connection but also effectively prevent the working tip from separating from the handle due to vibration and external forces during operation, further improving the reliability and safety of the ultrasonic scaler handle.

[0028] 3. Since both the limiting groove and the plug-in assembly are annular structures, the plug-in assembly can be inserted into the limiting groove for fixation. This gives the working tip greater operational flexibility during installation and disassembly, eliminating the need for precise alignment of a specific insertion angle, reducing the difficulty of installation and disassembly, saving operation time, and improving work efficiency.

[0029] 4. The ultrasonic scaler handle achieves its scaling function through high-frequency vibration. The design of the connector and the mating head being axially aligned ensures that the vibration is stably transmitted from the handle to the working tip.

[0030] 5. The abutment structure increases the friction between the plug-in component and the limiting groove. When the handle is subjected to torque, this friction can resist the torque and prevent relative rotation between the working tip and the handle.

[0031] 6. The identical structure of the first and second limiting units makes the installation process simpler. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the initial assembly state of the assembled ultrasonic dental cleaning handle provided by this utility model;

[0034] Figure 2 A schematic diagram showing the initial assembly completion of the assembled ultrasonic dental cleaning handle provided by this utility model;

[0035] The components are: 1. Working tip; 101. Operating end; 102. Mounting end; 2. Fixed cover; 201. Movable hole; 202. Limiting groove; 20201. First limiting unit; 20202. Second limiting unit; 203. Bushing; 3. Handle; 301. Connecting joint; 302. Plug-in assembly; 30201. Fixed end; 30202. Hook end. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] This embodiment provides an assembled ultrasonic dental cleaning handpiece. The present invention will be further described in detail below with reference to the accompanying drawings:

[0042] Example 1:

[0043] like Figure 1 As shown, an assembled ultrasonic scaling handle includes: a working tip 1; a fixed cover 2, which has a movable hole 201 and a limiting component, the limiting component being located outside the movable hole 201, and a bushing 203 being provided at one end of the movable hole 201 located inside the fixed cover 2, the working tip 1 being disposed in the bushing 203, the end of the working tip 1 extending outward through the movable hole 201 for scaling operations; and a handle 3, the end of which has a connector 301 and a plug-in component 302, the plug-in component 302 being located on one side of the connector 301; wherein, when the fixed cover 2 drives the working tip 1 to rotate and connect with the connector 301, the plug-in component 302 cooperates with the limiting component to secure the connection between the working tip 1 and the connector 301. In traditional ultrasonic scaling handles, the working tip 1 is prone to loosening during operation due to high-frequency vibration and external force. However, in this technical solution, the limiting component on the fixing cover 2 cooperates with the plug component 302 at the end of the handle 3. When the fixing cover 2 drives the working tip 1 to rotate and connect with the connector 301, it tightens the connection between the working tip 1 and the connector 301, effectively enhancing the stability of the connection between the working tip 1 and the handle 3 and preventing the working tip 1 from loosening during operation.

[0044] Once the working tip 1 is stably connected, it allows for more precise cleaning of teeth, ensuring thoroughness and improving cleaning effectiveness. Simultaneously, because the working tip 1 remains stable, it reduces the risk of damage to the patient's oral tissues caused by movement, thus minimizing patient discomfort and medical risks. Secondly, the existing handle 3 is cumbersome to install and remove the working tip 1, sometimes requiring specialized tools. However, the design of this modular ultrasonic scaler handle makes the installation and removal of the working tip 1 much more convenient and quick. Medical staff can replace the working tip 1 simply by rotating the fixing cap 2 without the need for specialized tools, significantly reducing their workload.

[0045] In addition, in emergency situations, such as when the working tip 1 is damaged and needs to be replaced, the replacement can be completed quickly, avoiding delays in treatment due to the inability to find the tool; furthermore, the simplified installation and disassembly process also reduces the risk of damage to the working tip 1 during operation and lowers the cost of use.

[0046] In addition, the handle 3 of this technical solution has a relatively simple structure, reducing unnecessary precision parts, thereby reducing the manufacturing cost of the handle 3 and making the product more competitive in the market.

[0047] The existing handle 3 lacks an effective limiting and fastening mechanism during the docking process between the working tip 1 and the handle 3, which can easily lead to incomplete or over-connection. In this technical solution, the cooperation between the limiting component and the plug component 302 provides an effective limiting and fastening effect for the connection between the working tip 1 and the connector 301, ensuring the accuracy and stability of the connection.

[0048] Furthermore, the working tip 1 has an operating end 101 and a mounting end 102, which are integrated into a single structure. This integrated structure makes the overall structure of the working tip 1 more robust, avoiding potential loosening or breakage issues that might occur with separate structures. During operation, it can withstand high-frequency vibrations and certain external forces, ensuring the stability and reliability of the working tip 1, thereby improving the accuracy and effectiveness of the teeth cleaning procedure. The outer wall of the mounting end 102 abuts against the inner wall of the bushing 203, and the operating end 101 extends outward through the movable hole 201, the diameter of which is smaller than the diameter of the mounting end 102. In this structure, the outer wall of the mounting end 102 abuts against the inner wall of the bushing 203, further enhancing the connection stability between the working tip 1 and the fixed cover 2. During operation, the shaking of the working tip 1 can be effectively reduced, allowing the working tip 1 to clean teeth more accurately, while also reducing the risk of damage to the patient's oral tissues caused by the shaking of the working tip 1. The operating end 101 extends outward through the movable hole 201, allowing medical staff to easily hold the operating end 101 for teeth cleaning operations, which conforms to ergonomic principles and improves the convenience and comfort of operation.

[0049] The limiting component includes a limiting groove 202, a first limiting unit 20201, and a second limiting unit 20202. Both the first limiting unit 20201 and the second limiting unit 20202 are disposed in the limiting groove 202, and the second limiting unit 20202 is located below the first limiting unit 20201. This multi-layered limiting structure provides more precise positioning and limiting function for the plug-in component 302. When the fixed end 30201 is inserted into the limiting groove 202, the second limiting unit 20202 and the first limiting unit 20201 can guide the hook end 30202 to bend accurately and hook onto the surface of the first limiting unit 20201, ensuring the accuracy and stability of the connection between the working tip 1 and the handle 3. Specifically, the plug-in assembly 302 includes a fixed end 30201 and a hook end 30202. The fixed end 30201 and the hook end 30202 are an integral structure, and the hook end 30202 is axially perpendicular to the fixed end 30201. When the mounting end 102 of the working tip 1 is connected to the connector 301 of the handle 3, the fixed end 30201 is inserted into the limiting groove 202, so that the hook end 30202 bends after passing through the second limiting unit 20202 and the first limiting unit 20201, and hooks onto the surface of the first limiting unit 20201, cooperating with the first limiting unit 20201. In the above structure, the hook end 30202 is hooked onto the surface of the first limiting unit 20201 and cooperates with the first limiting unit 20201. This hook-type connection method not only increases the tightness of the connection, but also effectively prevents the working tip 1 from separating from the handle 3 due to vibration and external force during operation, further improving the reliability and safety of the ultrasonic scaler handle 3.

[0050] Furthermore, the fixed end 30201 and the hook end 30202 of the plug-in assembly 302 are integrated into one structure. This design ensures the overall structural strength of the plug-in assembly 302, enabling it to withstand various forces and vibrations during operation, making it less prone to damage and extending the service life of the handle. Moreover, the hook end 30202 is axially perpendicular to the fixed end 30201. This structure allows the hook end 30202 to be bent and hooked more easily after passing through the second limiting unit 20202 and the first limiting unit 20201, simplifying the connection process between the working tip 1 and the handle 3 and improving the efficiency of installation and disassembly. Simultaneously, this vertical structure also helps to better withstand external forces during operation, ensuring the stability of the connection.

[0051] In this embodiment, both the limiting groove 202 and the plug-in assembly 302 are annular structures. When the mounting end 102 of the working tip 1 is screwed to the connector 301 by the rotational force of the fixing cover 2, both the fixing end 30201 and the hook end 30202 of the plug-in assembly 302 rotate in the limiting groove 202. After the mounting end 102 is screwed to the connector 301, the fixing cover 2 is manually pressed to move the handle 3 of the fixing cover 2. During the movement, because the hook end 30202 has the ability to deform, the hook end... After contacting and deforming with the second limiting unit 20202, 30202 then contacts and deforms with the first limiting unit 20201. It is noteworthy that after contacting and deforming with the first limiting unit 20201, the bottom of the fixing cover 2 and the end of the handle 3 simultaneously coincide. The gap between the bottom of the limiting groove 202 and the first limiting unit 20201 allows the hook end 30202 to regain its shape, thus contacting and engaging with the surface of the first limiting unit 20201, completing the installation of the working tip 1. Figure 2 As shown.

[0052] In this embodiment, the plug-in component 302 and the mating connector 301 are axially aligned, the hook end 30202 abuts against the inner wall of the limiting groove 202, and the limiting groove 202 is axially aligned with the bushing 203. This structural design can ensure precise assembly between the working tip 1 and the handle 3, as well as precise docking between the plug-in component 302 and the limiting component, making the assembly and disassembly process smoother.

[0053] In this embodiment, the first limiting unit 20201 and the second limiting unit 20202 have the same structure. Specifically, the first limiting unit 20201 and the second limiting unit 20202 are hemispherical structures. When in contact with the plug-in assembly 302, the hemispherical structure tends to exhibit rolling friction rather than sliding friction. The rolling friction has a smaller frictional force, which can reduce wear between the first limiting unit 20201, the second limiting unit 20202, and the plug-in assembly 302, thereby reducing energy loss. At the same time, the smaller frictional force also helps to reduce noise generated by friction, improve the comfort of use, and create a better operating and usage environment for medical staff and patients.

[0054] Example 2:

[0055] The difference from Embodiment 1 is that, in this embodiment, the first limiting unit 20201 and the second limiting unit 20202 are rectangular structures (not shown in the figure). The four sides of the rectangular structure can provide multi-directional support, enhancing the fixing effect on the plug-in assembly 302. During operation, even when subjected to forces and vibrations in different directions, the rectangular limiting units can maintain the stability of the plug-in assembly 302, preventing it from shaking or loosening.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit its protection scope. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this utility model, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. An assembled ultrasonic dental scaler handpiece, characterized in that, include: Working tip (1); A fixed cover (2) is provided with a movable hole (201) and a limiting component. The limiting component is located outside the movable hole (201). A bushing (203) is provided at one end of the movable hole (201) located inside the fixed cover (2). The working tip (1) is disposed in the bushing (203). The end of the working tip (1) extends outward through the movable hole (201). The handle (3) has a connector (301) and a plug-in assembly (302) at its end, the plug-in assembly (302) being located on one side of the connector (301); When the fixed cover (2) drives the working tip (1) to rotate and connect with the connector (301), the plug-in component (302) cooperates with the limiting component to tighten the connection between the working tip (1) and the connector (301).

2. The assembled ultrasonic dental scaler handpiece according to claim 1, characterized in that, The working tip (1) has an operating end (101) and a mounting end (102). The operating end (101) and the mounting end (102) are an integral structure. The outer wall of the mounting end (102) abuts against the inner wall of the bushing (203). The operating end (101) extends outward through the movable hole (201). The limiting component includes a limiting groove (202), a first limiting unit (20201), and a second limiting unit (20202). The first limiting unit (20201) and the second limiting unit (20202) are both disposed in the limiting groove (202), and the second limiting unit (20202) is located below the first limiting unit (20201). The plug-in assembly (302) includes a fixed end (30201) and a hook end (30202). The fixed end (30201) and the hook end (30202) are an integral structure. The hook end (30202) is axially perpendicular to the fixed end (30201). When the mounting end (102) of the working tip (1) is connected to the connector (301) of the handle (3), the fixed end (30201) is inserted into the limiting groove (202) so that the hook end (30202) bends after passing through the second limiting unit (20202) and the first limiting unit (20201) and hooks onto the surface of the first limiting unit (20201) to cooperate with the first limiting unit (20201).

3. The assembled ultrasonic dental scaler handpiece according to claim 2, characterized in that, Both the limiting groove (202) and the plug-in assembly (302) are annular structures.

4. The assembled ultrasonic dental scaler handpiece according to claim 2, characterized in that, The plug assembly (302) and the mating connector (301) are axially aligned.

5. The assembled ultrasonic dental scaler handpiece according to claim 2, characterized in that, The hook end (30202) abuts against the inner wall of the limiting groove (202).

6. The assembled ultrasonic dental scaler handpiece according to claim 2, characterized in that, The first limiting unit (20201) and the second limiting unit (20202) have the same structure.

7. The assembled ultrasonic dental scaler handpiece according to claim 6, characterized in that, The first limiting unit (20201) and the second limiting unit (20202) are hemispherical or rectangular structures.

8. The assembled ultrasonic dental scaler handpiece according to claim 2, characterized in that, The limiting groove (202) and the bushing (203) are axially aligned.

9. The assembled ultrasonic dental scaler handpiece according to claim 1, characterized in that, The diameter of the movable hole (201) is smaller than the diameter of the mounting end (102).

10. The assembled ultrasonic dental scaler handpiece according to claim 1, characterized in that, The working tip (1) is screwed to the butt joint (301).

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