Detachable dental crown clamp

Abstract

The utility model discloses a detachable dental crown clamp, and relates to the field of medical oral instruments, the detachable dental crown clamp comprises a first grip and a second grip, the first grip is provided with a driving connecting piece, the second grip is provided with a driven connecting piece, and the driving connecting piece and the driven connecting piece are movably connected through a central shaft; one end of the first grip and one end of the second grip are provided with installation pieces, fixing blocks are installed in the installation pieces, clamp heads are arranged on the fixing blocks, limiting holes are formed in the fixing blocks, supporting pieces are installed on the upper portions of the installation pieces, drawing rods are movably installed in the middles of the supporting pieces, lifting plates are installed on the lower portions of the drawing rods, and springs are installed on the inner sides of the supporting pieces. The lower ends of the springs are connected with the surface of the lifting plate. When the position of the limiting hole corresponds to the position of the drawing rod up and down, the lifting plate and the drawing rod are pushed to move downwards through the force of the spring, the lower portion of the drawing rod enters the limiting hole, the fixing block and the clamp head are fixed, and installation is convenient.

Description

Technical Field

[0001] The present application relates to the field of medical oral instruments, and in particular to a detachable dental crown fixture. Background Art

[0002] A dental crown, also known as a dental cap, is a method used to repair teeth. When a tooth is damaged and difficult to repair with a filling, an artificial crown can be made of different materials and placed on a smaller natural crown. Simply put, a dental crown restoration is to put a cap on the surface of your tooth that is exactly the same color as the tooth, which is like putting a gorgeous coat on the bad tooth. This crown plays a protective role and does not affect your normal life and work.

[0003] When installing the crown and the braces, the crown and the braces must fit tightly together. When removing the crown, a special clamp is needed to remove the crown from the braces. However, the current installation method of the clamp and the clamp head is to fix the clamp head with bolts. In actual use, if the clamp head is damaged, it is more troublesome to disassemble and inconvenient to disassemble and replace it. Utility Model Content

[0004] In order to solve the problem that when the current fixture head is damaged, it is troublesome to disassemble and inconvenient to disassemble and replace it, the present application provides a detachable crown fixture.

[0005] The present application provides a detachable crown fixture that adopts the following technical solution:

[0006] The invention comprises a first handle and a second handle, an active connector being installed on the first handle, and a passive connector being installed on the second handle, the active connector and the passive connector being movably connected via a central axis, a mounting member being installed at one end of the first handle and the second handle, a fixed block being installed inside the mounting member, a clamp head being provided on the fixed block, and a limiting hole being provided on the fixed block, a support member being installed on the upper part of the mounting member, a pull-out rod being movably installed on the middle part of the support member, a lifting plate being installed on the lower part of the pull-out rod, a spring being installed on the inner side of the support member, and the lower end of the spring being connected to the surface of the lifting plate.

[0007] By adopting the above technical solution, during the movement of the fixed block, the oblique guide groove gradually contacts the inclined surface of the lower part of the pull rod, and the pull rod can be pushed upward through the guide groove, and the pull rod drives the lifting plate to move upward.

[0008] Preferably, there are two springs, which are respectively located on both sides of the pull rod, and a through hole is provided on the mounting piece.

[0009] By adopting the above technical solution, when the position of the limiting hole and the position of the pull rod correspond to each other, the lifting plate and the pull rod are pushed downward by the force of the spring, and the lower part of the pull rod enters the interior of the limiting hole.

[0010] Preferably, the diameter of the lower portion of the pulling rod is matched with the diameters of the through hole and the limiting hole, and the lower end of the pulling rod can pass through the inside of the through hole and be inserted into the inside of the limiting hole.

[0011] By adopting the above technical solution, when the position of the limiting hole and the position of the pull rod correspond to each other, the lifting plate and the pull rod are pushed downward by the force of the spring, and the lower part of the pull rod enters the interior of the limiting hole.

[0012] Preferably, a slope is provided at one end of the fixing block, a guide groove is provided on the slope, the guide groove is obliquely provided, and one end of the guide groove is connected to the limiting hole.

[0013] By adopting the above technical solution, when the position of the limiting hole and the position of the pull-out rod correspond to each other vertically, it is convenient for the pull-out rod to enter the limiting hole through the guide groove.

[0014] Preferably, a slope is provided at the lower end of the drawer rod, the inclination of the slope matches the inclination of the slope, and the width of the guide groove matches the diameter of the drawer rod.

[0015] By adopting the above technical solution, during the movement of the fixed block, the oblique guide groove gradually contacts the inclined surface of the lower part of the pull rod, and the pull rod can be pushed upward through the guide groove, and the pull rod drives the lifting plate to move upward.

[0016] Preferably, a limiting strip is provided on the inner side of the mounting member, a limiting slot is provided at the lower portion of the fixing block, the width of the limiting strip matches the width of the limiting slot, and the limiting strip is located inside the limiting slot.

[0017] By adopting the above technical solution, the limiting groove at the bottom of the fixing block is aligned with the limiting strip inside the mounting member, so that the guide groove on the fixing block can be located in the middle position.

[0018] Preferably, a first elastic sheet is mounted on the first handle, a second elastic sheet is mounted on the second handle, a plug-in slot is provided on the first elastic sheet, and one end of the second elastic sheet is plugged into the inside of the plug-in slot.

[0019] By adopting the above technical solution, when force is applied to the first grip and the second grip, feedback force can be felt through the first elastic sheet and the second elastic sheet, making it more convenient to use.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application uses an obliquely opened guide groove to push the pull rod upward, and the pull rod drives the lifting plate to move upward. The spring contracts, and when the position of the limit hole and the position of the pull rod correspond vertically, the spring force pushes the lifting plate and the pull rod downward, and the lower part of the pull rod enters the inner part of the limit hole, fixing the fixing block and the clamp head, facilitating installation;

[0022] 2. In this application, the pull rod moves upward to drive the lifting plate to be lifted upward synchronously. At this time, the lifting plate can drive the spring to contract. When the lower part of the pull rod is pulled out from the inside of the limit hole, the fixing block can be removed from the inside of the mounting part by pulling the clamp head outward, thereby facilitating its disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a detachable dental crown fixture according to an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram mainly showing the overall front structure of the embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the assembly structure of the mounting part of the embodiment of the present application;

[0026] Figure 4 This is a schematic diagram showing a partially disassembled structure of the mounting member according to an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram mainly showing the structure of the fixed block in an embodiment of the present application;

[0028] Figure numerals: 1. first handle; 2. second handle; 3. active connector; 4. passive connector; 5. central axis; 6. mounting member; 7. fixing block; 8. clamp head; 9. supporting member; 10. pull rod; 11. spring; 12. lifting plate; 13. through hole; 14. limiting hole; 15. slope; 16. guide groove; 17. inclined surface; 18. limiting strip; 19. limiting groove; 20. first elastic sheet; 21. second elastic sheet; 22. plug-in slot. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0030] The embodiment of the present application discloses a detachable dental crown fixture, including a first grip 1 and a second grip 2. An active connector 3 is installed on the first grip 1, and a passive connector 4 is installed on the second grip 2. The active connector 3 and the passive connector 4 are movably connected via a central axis 5. When force is applied to the first grip 1 and the second grip 2, the other ends of the first grip 1 and the second grip 2 will move in opposite directions. A mounting member 6 is installed at one end of the first grip 1 and the second grip 2, a fixing block 7 is installed inside the mounting member 6, a fixture head 8 is provided on the fixing block 7, a limiting hole 14 is provided on the fixing block 7, a support member 9 is installed on the upper part of the mounting member 6, and the support member A pull rod 10 is movably installed in the middle of 9, and a lifting plate 12 is installed at the lower part of the pull rod 10. A spring 11 is installed on the inner side of the support member 9. The lower end of the spring 11 is connected to the surface of the lifting plate 12. There are two springs 11, and the two springs 11 are respectively located on both sides of the pull rod 10. A through hole 13 is provided on the mounting member 6. When the pull rod 10 is lifted upward, the pull rod 10 drives the lifting plate 12 to be lifted upward synchronously. At this time, the lifting plate 12 can drive the spring 11 to contract. When the lower part of the pull rod 10 is pulled out from the inside of the limit hole 14, the fixing block 7 can be removed from the inside of the mounting member 6 by pulling the clamp head 8 outward, thereby facilitating its disassembly.

[0031] Please refer to Figures 3 to 5 The lower diameter of the pulling rod 10 is adapted to the diameter of the through hole 13 and the limiting hole 14. The lower end of the pulling rod 10 can pass through the inside of the through hole 13 and be inserted into the inside of the limiting hole 14. A slope 15 is provided at one end of the fixing block 7. A guide groove 16 is provided on the slope 15. The guide groove 16 is obliquely opened, and one end of the guide groove 16 is connected to the limiting hole 14. A slope 17 is provided at the lower end of the pulling rod 10. The inclination of the inclined surface 17 matches the inclination of the slope 15. The width of the guide groove 16 is adapted to the diameter of the pulling rod 10. During the movement of the fixing block 7, the oblique guide groove 16 gradually contacts the inclined surface 17 at the lower part of the pulling rod 10. The pulling rod 10 can be pushed up by the guide groove 16, and the pulling rod 10 drives the lifting plate 12 to move upward.

[0032] Please refer to Figure 4 and Figure 5 A limiting strip 18 is provided on the inner side of the mounting member 6, and a limiting groove 19 is provided at the lower part of the fixing block 7. The width of the limiting strip 18 matches the width of the limiting groove 19. The limiting strip 18 is located inside the limiting groove 19. By making the limiting groove 19 at the lower part of the fixing block 7 correspond to the limiting strip 18 inside the mounting member 6, the guide groove 16 on the fixing block 7 can be located in the middle position.

[0033] Please refer to Figure 1 and Figure 2A first elastic sheet 20 is installed on the first handle 1, and a second elastic sheet 21 is installed on the second handle 2. The first elastic sheet 20 is provided with an insertion slot 22, and one end of the second elastic sheet 21 is inserted into the inside of the insertion slot 22. When force is applied to the first handle 1 and the second handle 2, feedback force can be felt through the first elastic sheet 20 and the second elastic sheet 21, making it more convenient to use.

[0034] The implementation principle of the detachable crown clamp of the embodiment of the present application is as follows: when replacing the clamp head 8, the pulling rod 10 is lifted upward, and the pulling rod 10 drives the lifting plate 12 to be lifted upward synchronously. At this time, the lifting plate 12 can drive the spring 11 to contract. When the lower part of the pulling rod 10 is pulled out from the inside of the limiting hole 14, the fixing block 7 can be taken out from the inside of the mounting part 6 by pulling the clamp head 8 outward, thereby facilitating its disassembly; when installing, first, the limiting groove 19 at the lower part of the fixing block 7 is aligned with the limiting strip 18 inside the mounting part 6, so that the guide groove 19 on the fixing block 7 can be made to move upward. 6 is in the middle position, and then the fixing block 7 is pushed into the interior of the mounting member 6. During the movement of the fixing block 7, the oblique guide groove 16 gradually contacts the inclined surface 17 at the lower part of the pulling rod 10, and the pulling rod 10 can be pushed up by the guide groove 16. The pulling rod 10 drives the lifting plate 12 to move upward, and the spring 11 contracts. When the position of the limiting hole 14 and the position of the pulling rod 10 correspond to each other up and down, the lifting plate 12 and the pulling rod 10 are pushed down by the force of the spring 11, and the lower part of the pulling rod 10 enters the interior of the limiting hole 14, and the fixing block 7 and the clamp head 8 are fixed.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A detachable dental crown fixture, characterized by: The invention comprises a first handle (1) and a second handle (2), wherein an active connector (3) is installed on the first handle (1), and a passive connector (4) is installed on the second handle (2), and the active connector (3) and the passive connector (4) are movably connected via a central axis (5); a mounting member (6) is installed at one end of the first handle (1) and the second handle (2); a fixing block (7) is installed inside the mounting member (6), a clamp head (8) is provided on the fixing block (7), and a limiting hole (14) is provided on the fixing block (7); a support member (9) is installed on the upper part of the mounting member (6), a pull rod (10) is movably installed in the middle part of the support member (9), and a lifting plate (12) is installed at the lower part of the pull rod (10); a spring (11) is installed on the inner side of the support member (9), and the lower end of the spring (11) is connected to the surface of the lifting plate (12).

2. The detachable dental crown fixture according to claim 1, characterized in that: There are two springs (11), and the two springs (11) are respectively located on both sides of the pull rod (10). A through hole (13) is provided on the mounting member (6).

3. The detachable dental crown fixture according to claim 2, characterized in that: The lower diameter of the pulling rod (10) is compatible with the diameters of the through hole (13) and the limiting hole (14), and the lower end of the pulling rod (10) can pass through the inside of the through hole (13) and be inserted into the inside of the limiting hole (14).

4. The detachable dental crown fixture according to claim 3, characterized in that: A slope (15) is provided at one end of the fixing block (7), a guide groove (16) is provided on the slope (15), the guide groove (16) is provided in an oblique direction, and one end of the guide groove (16) is communicated with the limiting hole (14).

5. The detachable dental crown fixture according to claim 4, characterized in that: The lower end of the draw rod (10) is provided with an inclined surface (17), the inclination of the inclined surface (17) matches the inclination of the slope (15), and the width of the guide groove (16) matches the diameter of the draw rod (10).

6. The detachable dental crown fixture according to claim 1, characterized in that: A limiting strip (18) is provided on the inner side of the mounting member (6), and a limiting slot (19) is provided on the lower portion of the fixing block (7). The width of the limiting strip (18) matches the width of the limiting slot (19), and the limiting strip (18) is located inside the limiting slot (19).

7. The detachable dental crown fixture according to claim 1, characterized in that: A first elastic sheet (20) is installed on the first handle (1), a second elastic sheet (21) is installed on the second handle (2), an inserting slot (22) is provided on the first elastic sheet (20), and one end of the second elastic sheet (21) is inserted into the inside of the inserting slot (22).

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