Auxiliary crown taking device for inner crown of sleeve

Abstract

The utility model relates to an auxiliary crown taking device for a sleeve inner crown, and belongs to the field of oral rehabilitation instruments, the auxiliary crown taking device comprises a shell, a rotor, a vibrating rod, an elastic piece and a driving assembly, the rotor is rotatably arranged on the inner side wall of the shell, a plurality of convex strips are circumferentially arranged on the outer side wall of the rotor at intervals, and the vibrating rod is slidably arranged on the shell and abuts against the rotor; the elastic piece is arranged on the shell and used for driving the vibration rod to reset to abut against the rotor, and the driving assembly is arranged on the shell and used for driving the rotor to rotate. The vibrating rod moves in a reciprocating mode to vibrate, medical staff enable the vibrating rod to abut against the outer crown of the inner crown of the sleeve, the outer crown and the inner crown of the inner crown of the sleeve can be driven to be separated through vibration, and convenience of separating the outer crown and the inner crown of the inner crown of the sleeve is effectively improved.

Description

Technical Field

[0001] This application relates to the field of oral prosthetic devices, and in particular, to a device for assisting in removing the crown of a sleeve inner crown. Background Art

[0002] A telescopic crown denture is a fixed-removable combined prosthesis. The sleeve inner crown refers to a double-layer crown with high density. The inner crown is cemented to the abutment tooth, and the outer crown is placed inside the denture. The denture is retained by the frictional force generated by the close fit between the inner and outer crowns. Based on the structural characteristics of the sleeve inner crown, in operations such as crown maintenance, preparation, and restoration, it is very difficult to separate the inner and outer layers of the crown because the inner and outer crowns are very closely attached.

[0003] Currently, medical staff usually use tools such as pliers to peel the outer crown from the inner crown. However, due to the relatively smooth surface of the outer crown, the frictional force of the pliers when clamping the outer crown is low, and it is difficult for medical staff to clamp the outer crown for operation. There is still a problem that it is relatively difficult to separate the outer crown and the inner crown of the sleeve inner crown. Utility Model Content

[0004] In order to improve the convenience of separating the outer crown and the inner crown of the sleeve inner crown, this application provides a device for assisting in removing the crown of a sleeve inner crown.

[0005] The device for assisting in removing the crown of a sleeve inner crown provided by this application adopts the following technical solutions:

[0006] A device for assisting in removing the crown of a sleeve inner crown includes a housing, a rotor, a vibrating rod, an elastic member, and a driving component. The rotor is rotatably arranged on the inner side wall of the housing. A plurality of convex strips are circumferentially spaced on the outer side wall of the rotor. The vibrating rod is slidably arranged on the housing and abuts against the rotor. The elastic member is arranged on the housing and is used to drive the vibrating rod to reset and abut against the rotor. The driving component is arranged on the housing and is used to drive the rotor to rotate.

[0007] By adopting the above technical solutions, medical staff drive the rotor to rotate through the driving component. During the rotation of the rotor, the convex strips on the rotor abut against the vibrating rod, and the convex strips drive the vibrating rod to move away from the rotor. Then, the elastic member drives the vibrating rod to reset and abut against the rotor again. In this way, the vibrating rod reciprocates and vibrates. Medical staff abut the vibrating rod against the outer crown of the sleeve inner crown, and the outer crown of the sleeve inner crown can be separated from the inner crown by vibration, effectively improving the convenience of separating the outer crown and the inner crown of the sleeve inner crown.

[0008] Optionally, a plug-in portion is arranged on the housing. The vibrating rod is slidably arranged on the inner side wall of the plug-in portion. A retaining ring is circumferentially arranged on the inner side wall of the plug-in portion. A limiting protrusion is arranged on the vibrating rod, and the limiting protrusion is located at one end of the retaining ring close to the housing.

[0009] By adopting the above technical solution, the side wall of the insertion part guides and limits the movement of the vibrating rod, improving the stability of the vibrating rod during reciprocating movement. And the retaining ring limits the movement of the vibrating rod in the insertion part by blocking the limiting protrusion, preventing the vibrating rod from moving out of the insertion part.

[0010] Optionally, the elastic member includes an elastic rubber block, which is arranged on the inner side wall of the insertion part. The elastic rubber block wraps the limiting protrusion, and the elastic rubber block always has a tendency to drive the limiting protrusion to move towards the rotor.

[0011] By adopting the above technical solution, when the vibrating rod moves away from the rotor, the vibrating rod drives the limiting protrusion to squeeze the elastic rubber block. After the convex strip no longer squeezes the vibrating rod, the elastic rubber block resets, thereby driving the limiting protrusion to move towards the rotor. This makes it convenient and fast for the vibrating rod to reset and abut against the rotor. At the same time, the elastic rubber block wraps the limiting protrusion, providing a buffer for the limiting protrusion, and further providing a buffer for the movement of the vibrating rod, further improving the stability of the reciprocating movement of the vibrating rod.

[0012] Optionally, a partition is arranged on the housing, and the partition isolates the rotor inside the housing.

[0013] By adopting the above technical solution, the partition and the housing protect the rotor inside, preventing dust, debris, etc. from entering the housing and interfering with the rotation of the rotor.

[0014] Optionally, bearings are arranged on the inner side wall of the housing and on the partition, and both ends of the rotor are respectively arranged on a bearing.

[0015] By adopting the above technical solution, the bearings reduce the friction force that needs to be overcome during the rotation of the rotor, increase the smoothness of the rotor during rotation, and reduce the power required to drive the rotor to rotate.

[0016] Optionally, the drive assembly includes a connecting rod, a dental handpiece, and a connector. The connecting rod is rotatably arranged on the partition and is coaxially connected to the rotor. The connector is rotatably arranged on the dental handpiece. The dental handpiece is used to drive the connector to rotate, and the connector is inserted and matched with the connecting rod and is used to drive the connecting rod to rotate.

[0017] By adopting the above technical solution, the medical staff inserts the connecting rod into the connector, and then starts the dental handpiece. The dental handpiece drives the connector to rotate, and the connector can drive the connecting rod to rotate. The connecting rod can drive the rotor to rotate. When it is not necessary to drive the rotor to rotate, the medical staff can pull out the connecting rod from the connector, improving the convenience of use for the medical staff.

[0018] Optionally, the housing is provided with an extension part for wrapping around the outer wall of the connector.

[0019] By adopting the above technical solution, when the medical staff inserts the connecting rod into the connector head in a plug-in fit, the extension part wraps around the connector head, thereby protecting the connecting rod and the connector head inside, and improving the problem of potential safety hazards caused by the exposure of the connecting rod and the connector head.

[0020] Optionally, a rubber ring is arranged on the inner side wall of the extension part, and the connector head abuts against the rubber ring.

[0021] By adopting the above technical solution, the rubber ring enhances the friction between the extension part and the connector head, and improves the tightness of the abutment between the extension part and the connector head.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The vibrating rod reciprocates to generate vibration. When the medical staff abuts the vibrating rod against the outer crown of the inner crown of the sleeve, the outer crown of the inner crown of the sleeve can be separated from the inner crown by the vibration, effectively improving the convenience of separating the outer crown of the inner crown of the sleeve from the inner crown;

[0024] 2. The elastic rubber block wraps the limiting protrusion, provides buffering for the limiting protrusion, and further provides buffering for the movement of the vibrating rod, further improving the stability of the reciprocating movement of the vibrating rod;

[0025] 3. When it is not necessary to drive the rotor to rotate, the medical staff can pull out the connecting rod from the connector head, improving the convenience of use for the medical staff. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the inner crown auxiliary crown removal device of the embodiment of the present application.

[0027] Figure 2 is a schematic cross-sectional view of the embodiment of the present application.

[0028] Reference numerals: 1, housing; 2, rotor; 3, vibrating rod; 4, elastic member; 41, elastic rubber block; 5, drive assembly; 51, connecting rod; 52, dental handpiece; 53, connector head; 6, rib; 7, plug-in part; 8, retaining ring; 9, limiting protrusion; 10, partition; 11, bearing; 12, extension part; 13, rubber ring. Detailed Embodiment

[0029] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 to further illustrate the present application.

[0030] The embodiment of the present application discloses an inner crown auxiliary crown removal device for a sleeve.

[0031] Refer to Figure 1 , Figure 2, the auxiliary crown removal device for the sleeve inner crown includes a housing 1, a rotor 2, a vibrating rod 3, an elastic member 4, and a driving assembly 5.

[0032] Referring to Figure 1 , Figure 2 , the interior of the housing 1 is hollow and open at one end. A bearing 11 is installed on the inner bottom wall of the housing 1, the rotor 2 is installed on the bearing 11, a partition 10 is installed on the inner side wall of the housing 1, the partition 10 isolates the rotor 2 inside the housing 1, and a bearing 11 is also installed on the partition 10. One end of the rotor 2 away from the inner bottom wall of the housing 1 is installed on the bearing 11 on the partition 10.

[0033] The partition 10 and the housing 1 form a closed space to enclose and protect the rotor 2 inside, reducing the possibility of dust, debris, etc. entering the interior of the housing 1, thereby preventing dust, debris, etc. from entering the housing 1 and interfering with the rotation of the rotor 2; and the bearing 11 reduces the friction force that needs to be overcome when the rotor 2 rotates, making the rotation of the rotor 2 smoother, and thus reducing the power required to drive the rotation of the rotor 2.

[0034] Referring to Figure 1 , Figure 2 , a plug-in part 7 is installed on the housing 1 and is communicated with the housing 1. The vibrating rod 3 is slidably installed on the inner side wall of the plug-in part 7, and the vibrating rod 3 extends into the housing 1 and abuts against the rotor 2. A plurality of ridges 6 are circumferentially installed on the outer side wall of the rotor 2 at intervals along the axial direction of the rotating shaft. The elastic member 4 is installed on the plug-in part 7, and the elastic member 4 is used to drive the vibrating rod 3 to reset and abut against the rotor 2 again. The driving assembly 5 is installed on the housing 1, and the driving assembly 5 is used to drive the rotor 2 to rotate.

[0035] When it is necessary to separate the outer crown and the inner crown of the sleeve inner crown, the medical staff drives the rotor 2 to rotate through the driving assembly 5. The rotor 2 drives the ridge 6 to move, so that the ridge 6 abuts against the vibrating rod 3. The vibrating rod 3 moves in a direction away from the rotor 2 under the abutting action of the ridge 6. Then the elastic member 4 drives the vibrating rod 3 to reset and abut against the rotor 2 again. In this way, the vibrating rod 3 can be driven to reciprocate in a direction away from the rotor 2 and vibrate. The plug-in part 7 guides the vibrating rod 3 during the reciprocating movement of the vibrating rod 3, improving the stability of the reciprocating movement of the vibrating rod 3. The medical staff abuts the vibrating rod 3 against the outer crown of the sleeve inner crown, and then the outer crown and the inner crown of the sleeve inner crown can be separated by the vibration of the vibrating rod 3, effectively improving the convenience of separating the outer crown and the inner crown of the sleeve inner crown.

[0036] Referring to Figure 1 , Figure 2 , a retaining ring 8 is circumferentially installed on the inner side wall of the plug-in part 7, and a limiting protrusion 9 is circumferentially installed on the outer side wall of the vibrating rod 3. The diameter of the limiting protrusion 9 is greater than the inner diameter of the retaining ring 8, and the limiting protrusion 9 is located in the space at one end of the retaining ring 8 close to the housing 1.

[0037] When the vibrating rod 3 moves away from the rotor 2, the limiting protrusion 9 is driven to move. The limiting protrusion 9 abuts against the retaining ring 8, and the retaining ring 8 limits the distance of the limiting protrusion 9 moving away from the rotor 2, preventing the vibrating rod 3 from shifting too much and directly moving out of the insertion part 7.

[0038] Refer to Figure 2 , the elastic member 4 includes an elastic rubber block 41. In this embodiment, the elastic rubber block 41 is a rubber block. The elastic rubber block 41 is circumferentially covered on the inner side wall of the insertion part 7. The elastic rubber block 41 fills the gaps between the vibrating rod 3 and the inner side wall of the insertion part 7 and between the limiting protrusion 9 and the inner side wall of the insertion part 7. The elastic rubber block 41 always has a tendency to drive the limiting protrusion 9 to move towards the rotor 2.

[0039] When the rib 6 on the rotor 2 squeezes the vibrating rod 3 to drive the vibrating rod 3 to move away from the rotor 2, the vibrating rod 3 drives the limiting protrusion 9 to move, and the limiting protrusion 9 squeezes the elastic rubber block 41. After the rib 6 finishes squeezing the vibrating rod 3, the elastic rubber block 41 recovers its deformation, which can drive the limiting protrusion 9 to move towards the rotor 2, and then drive the vibrating rod 3 to move towards the rotor 2 and abut against the rotor 2 again, conveniently and quickly resetting the vibrating rod 3. And the elastic rubber block 41 wraps the vibrating rod 3 and the limiting protrusion 9, providing a buffer for the movement of the vibrating rod 3 and the limiting protrusion 9, and further improving the stability of the reciprocating movement of the vibrating rod 3.

[0040] Refer to Figure 1 、 Figure 2 , the driving assembly 5 includes a connecting rod 51, a dental handpiece 52 and a connecting head 53. The connecting rod 51 is rotatably installed on the partition 10. The connecting rod 51 is coaxially connected to the rotor 2. The connecting head 53 is rotatably installed on the dental handpiece 52. The dental handpiece 52 is used to drive the connecting head 53 to rotate. In this embodiment, the dental handpiece 52 is internally provided with a motor. The connecting head 53 is coaxially connected to the output shaft of the motor. An interface is opened at one end of the connecting head 53 away from the dental handpiece 52. The connecting rod 51 is inserted and matched on the side wall of the interface. The cross-sectional shapes of the connecting rod 51 and the interface can be polygons such as triangles, quadrilaterals, pentagons, etc. In this embodiment, the cross-sectional shapes of the connecting rod 51 and the interface are both regular hexagons.

[0041] Medical staff insert the connecting rod 51 into the connector 53 and then start the dental handpiece 52. The dental handpiece 52 drives the connector 53 to rotate. The connector 53 can drive the connecting rod 51 to rotate, and the connecting rod 51 drives the rotor 2 to rotate, so as to conveniently and quickly drive the rotor 2 to rotate. After use, the medical staff pulls out the connecting rod 51 from the connector 53, and the separation of the dental handpiece 52 from the rotor 2 can be completed, which is convenient for the medical staff to disassemble and carry, and improves the convenience of use for the medical staff.

[0042] Refer to Figure 1 、 Figure 2 On the housing 1, an extension part 12 is installed. The extension part 12 covers the connector 53. A rubber ring 13 is circumferentially installed on the inner side wall of the extension part 12. The connector 53 abuts against the rubber ring 13.

[0043] When the medical staff inserts the connecting rod 51 into the connector 53, the extension part 12 sleeves the connector 53, and the connector 53 abuts tightly against the rubber ring 13. The extension part 12 covers the connecting rod 51 and the connector 53, improving the problem of potential safety hazards due to the exposure of the connecting rod 51 and the connector 53; and while the rubber ring 13 enhances the tightness of the abutment between the extension part 12 and the connector 53, it can also enhance the friction between the extension part 12 and the connector 53, improving the stability of the extension part 12 covering the connector 53.

[0044] The implementation principle of the inner crown auxiliary crown removal device in the sleeve in this application embodiment is as follows: The medical staff inserts the connecting rod 51 into the connector 53, then starts the dental handpiece 52. The dental handpiece 52 drives the connector 53 to rotate. The connector 53 drives the connecting rod 51 and the rotor 2 to rotate. The rotor 2 drives the convex strip 6 to rotate. The convex strip 6 squeezes the vibrating rod 3, driving the vibrating rod 3 to move away from the rotor 2. Then the elastic rubber block 41 drives the vibrating rod 3 to reset towards the rotor 2 and abut against the rotor 2 again. The next convex strip 6 on the rotor 2 continues to squeeze the vibrating rod 3, and so on, causing the vibrating rod 3 to move back and forth and vibrate. The medical staff abuts the vibrating rod 3 against the outer crown of the inner crown of the sleeve, and the outer crown of the inner crown of the sleeve can be separated from the inner crown by vibration, effectively improving the convenience of separating the outer crown of the inner crown of the sleeve from the inner crown.

[0045] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A sleeve inner crown auxiliary crown removal device, characterized in that: The invention comprises a housing (1), a rotor (2), a vibrating rod (3), an elastic member (4) and a driving assembly (5); the rotor (2) is rotatably arranged on the inner side wall of the housing (1); a plurality of convex strips (6) are circumferentially arranged on the outer side wall of the rotor (2); the vibrating rod (3) is slidably arranged on the housing (1) and abuts against the rotor (2); the elastic member (4) is arranged on the housing (1) and is used to drive the vibrating rod (3) to return to its original position and abut against the rotor (2); and the driving assembly (5) is arranged on the housing (1) and is used to drive the rotor (2) to rotate.

2. The sleeve inner crown auxiliary crown removal device according to claim 1, characterized in that: The outer shell (1) is provided with a plug-in portion (7), the vibrating rod (3) is slidably arranged on the inner side wall of the plug-in portion (7), a retaining ring (8) is circumferentially arranged on the inner side wall of the plug-in portion (7), and a limiting protrusion (9) is provided on the vibrating rod (3), the limiting protrusion (9) being located at one end of the retaining ring (8) close to the outer shell (1).

3. The sleeve inner crown auxiliary crown removal device according to claim 2, characterized in that: The elastic member (4) comprises an elastic rubber block (41), the elastic rubber block (41) being arranged on the inner side wall of the plug-in portion (7), the elastic rubber block (41) covering the limiting protrusion (9), and the elastic rubber block (41) always having a tendency to drive the limiting protrusion (9) to move in a direction close to the rotor (2).

4. The sleeve inner crown auxiliary crown removal device according to claim 1, characterized in that: A partition plate (10) is provided on the outer shell (1), and the partition plate (10) isolates the rotor (2) inside the outer shell (1).

5. The sleeve inner crown auxiliary crown removal device according to claim 4, characterized in that: Bearings (11) are provided on the inner wall of the housing (1) and on the partition plate (10), and both ends of the rotor (2) are provided on a bearing (11) respectively.

6. The sleeve inner crown auxiliary crown removal device according to claim 4, characterized in that: The driving assembly (5) comprises a connecting rod (51), a dental handpiece (52) and a connecting head (53); the connecting rod (51) is rotatably mounted on the partition (10) and is coaxially connected to the rotor (2); the connecting head (53) is rotatably mounted on the dental handpiece (52); the dental handpiece (52) is used to drive the connecting head (53) to rotate; the connecting head (53) is plug-fitted with the connecting rod (51) and is used to drive the connecting rod (51) to rotate.

7. The sleeve inner crown auxiliary crown removal device according to claim 6, characterized in that: The housing (1) is provided with an extension portion (12) for covering the outer wall of the connecting head (53).

8. The sleeve inner crown auxiliary crown removal device according to claim 7, characterized in that: A rubber ring (13) is provided on the inner side wall of the extension portion (12), and the connecting head (53) abuts against the rubber ring (13).

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