Dental crown dismounting device

Abstract

The utility model discloses a dental crown dismantling device which comprises a handle and a dismantling flat head, the handle is assembled on one side of the dismantling flat head in an inserted mode, an assembling connector is integrally formed at the end, close to the dismantling flat head, of the handle, the outer side of the assembling connector is in threaded connection with a locking nut, and a connecting block is connected into the assembling connector in an inserted mode. The end, located outside the assembling connector, of the connecting block is matched with the disassembling flat head in an inserted mode. The connecting block is composed of a connecting column, an assembling connecting rod and a shrinkage limiting body. According to the dental crown dismounting device disclosed by the utility model, through the arrangement of a corresponding structure, the crown removing head can be conveniently dismounted and replaced according to actual use requirements, so that the application range of the dental crown dismounting device is widened; the barbs are arranged at the tail end of the crown removing head, so that the risk that the crown removing head slips off in the using process is reduced; and by arranging the spring retraction component, the adverse effect of hand shaking on the clamping state of the crown removing head can be reduced, and the use stability of the crown removing head is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of dental crown disassembly, and particularly relates to a dental crown disassembly device. Background Art

[0002] A dental crown, also known as a dental cap, is a device that is placed on the outside of a tooth to protect it. It is mainly used to repair teeth that are difficult to repair with fillings. In actual use, when dental problems such as pulpitis, periodontitis, or cracks and wear of the crown occur, the crown needs to be removed to achieve the purpose of crown replacement or dental treatment.

[0003] As a crown removal device, crown remover is widely used in the process of crown removal. Traditional crown remover usually consists of two parts: handle and crown remover head. Figure 7 As shown, the traditional crown remover head 11 is generally hook-shaped and is mainly used in scenarios where the crown and the edge of the tooth are not closely fitted. In addition, during use, the crown is mainly removed by knocking, vibrating or hooking and pulling. However, when the crown and the edge of the tooth are closely fitted, the traditional crown remover cannot effectively remove the crown, making the actual application effect of the crown remover poor.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a crown removal device.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a tooth crown removal device, which can conveniently replace the crown removal head of a crown remover according to actual conditions, thereby improving the practical application effect of the crown remover.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a crown removal device, including a handle and a disassembly flat head, the handle is plugged into and assembled on one side of the disassembly flat head, and an assembly joint is integrally formed at one end of the handle close to the disassembly flat head, and a locking nut is threadedly connected to the outer side of the assembly joint, a connecting block is plugged into the assembly joint, and the end of the connecting block located outside the assembly joint is plugged into and cooperated with the disassembly flat head, and a spring is installed between the connecting block and the disassembly flat head.

[0008] In one or more embodiments of the present invention, the diameter of the assembly joint on the side closest to the handle is larger than the diameter of the other end, and the outer side of the assembly joint is provided with multiple evenly distributed contraction gaps. This facilitates the fixing and clamping of assembly connecting rods of different diameters by moving multiple contraction fixing plates along the contraction gaps.

[0009] In one or more embodiments of the present invention, the multiple shrinkage gaps divide the assembly joint into multiple shrinkage fixing plates. This facilitates the clamping of assembly connecting rods of different diameters by moving the multiple shrinkage fixing plates. The multiple shrinkage fixing plates are simultaneously externally threaded, while the locking nut is internally threaded to match the assembly joint. The interplay of the internal and external threads allows the locking nut to limit the position and control the movement of the multiple shrinkage fixing plates.

[0010] In one or more embodiments of the present invention, the connecting block comprises a connecting post, an assembly connecting rod, and a retractable stopper. The assembly connecting rod is fixedly mounted on the side of the connecting post proximal to the disassembly flat head. The connecting block is assembled and secured by clamping the assembly connecting rod. The retractable stopper is fixedly mounted on the side of the connecting post facing away from the assembly connecting rod. The retractable stopper serves to limit the position of the limited connecting block.

[0011] In one or more embodiments of the present invention, the outer side of the connecting column is provided with a plurality of evenly distributed anti-slip grooves. These grooves prevent the connecting column from slipping and limit the position, ensuring convenient removal and removal of the connecting block. The retractable limiter is provided with an assembly slot. These slots also serve as an assembly limiter for the limiter connecting block.

[0012] In one or more embodiments of the present invention, sliding limit blocks are fixedly mounted on both sides of the shrinkage limiter, and the sliding limit blocks are connected to the shrinkage limiter by bolts. The sliding limit blocks play a role in limiting the movement of the engaging boss.

[0013] In one or more embodiments of the present invention, a limit connection block is integrally formed at one end of the disassembly flat head proximal to the connection block, the limit connection block is slidably assembled in an assembly slot, and the spring is arranged and assembled in the limit connection block. The assembly of the disassembly flat head and the connection block is limited by the interaction between the limit connection block and the contraction limiter.

[0014] In one or more embodiments of the present invention, a pair of engaging bosses are integrally formed on one end of the disassembly flat head close to the connecting block, and the pair of engaging bosses are provided in cooperation with the sliding limit block, so as to facilitate movement limitation of the disassembly flat head by slidingly limiting the engaging bosses.

[0015] In one or more embodiments of the present invention, the end of the disassembly head facing away from the handle is integrally formed with a plurality of evenly distributed anti-slip barbs. The provision of the plurality of anti-slip barbs ensures the contact stability between the disassembly head and the crown groove, thereby ensuring the stability of the crown removal process.

[0016] Compared with the prior art, the tooth crown removal device disclosed in the present invention can conveniently disassemble, assemble and replace the crown removal head according to actual use needs through the setting of corresponding structures, thereby improving the application range of the tooth crown removal device;

[0017] By providing a barb at the end of the crown remover head, the risk of the crown remover head slipping during use is reduced; by providing a spring retraction component, the adverse effects of hand shaking on the engagement state of the crown remover head can be reduced, thereby ensuring the stability of the crown remover head in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0019] Figure 1 This is a structural diagram of a dental crown removal device in one embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0021] Figure 3 This is a front cross-sectional view of a dental crown removal device in one embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0023] Figure 5 This is a three-dimensional diagram of a dental crown removal device in one embodiment of the present invention;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle;

[0025] Figure 7 This is a schematic diagram of the structure of a traditional crownless head.

[0026] Description of main reference numerals:

[0027] 1-handle, 2-disassembly flat head, 3-assembly joint, 4-locking nut, 5-connecting block, 501-connecting column, 502-assembly connecting rod, 503-contraction limiter, 6-spring, 7-sliding limiter, 8-limiting connecting block, 9-engaging boss, 10-anti-slip barb, 11-traditional crown remover. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0029] like Figures 1 to 7 As shown, a dental crown removal device in one embodiment of the present invention includes a handle 1 and a removal flat head 2 , wherein the handle 1 is plugged and assembled on one side of the removal flat head 2 .

[0030] like Figures 1 to 4 As shown, the end of the handle 1 close to the disassembly flat head 2 is integrally formed with an assembly joint 3, and the outer side of the assembly joint 3 is threadedly connected to a locking nut 4. The assembly connecting rod 502 is locked and fixed by the threaded cooperation of the assembly joint 3 and the locking nut 4.

[0031] Specifically, the diameter of the assembly joint 3 on the side closest to the handle 1 is larger than the diameter on the other end, and multiple evenly distributed contraction gaps are formed on the outside of the assembly joint 3. This facilitates the fixing and clamping of assembly connecting rods 502 of different diameters by moving multiple contraction fixing plates along the contraction gaps.

[0032] Multiple shrinkage gaps separate the assembly joint 3 into multiple shrinkage fixing plates. This facilitates the clamping of assembly connecting rods 502 of varying diameters by moving the shrinkage fixing plates. The shrinkage fixing plates are simultaneously externally threaded, while the locking nut 4 is internally threaded to match the assembly joint 3. The interplay of these internal and external threads allows the locking nut 4 to limit and control the movement of the shrinkage fixing plates.

[0033] like Figures 1 to 4 As shown, a connecting block 5 is inserted into the assembly joint 3, and one end of the connecting block 5 located outside the assembly joint 3 is plugged into the disassembly flat head 2. The connecting block 5 serves to connect the disassembly flat head 2 and the assembly joint 3, facilitating the adaptive contraction and movement of the disassembly flat head 2 by sliding the disassembly flat head 2 within the connecting block 5.

[0034] like Figures 1 to 4As shown, the connecting block 5 comprises a connecting post 501, an assembly connecting rod 502, and a retractable stopper 503. The assembly connecting rod 502 is fixedly mounted on the side of the connecting post 501 proximal to the disassembly flat head 2. The connecting block 5 is assembled and secured by clamping the assembly connecting rod 502. The retractable stopper 503 is fixedly mounted on the side of the connecting post 501 facing away from the assembly connecting rod 502. The retractable stopper 503 serves to limit the position of the limited connecting block 8.

[0035] Specifically, the outer side of the connecting column 501 is provided with multiple evenly distributed anti-slip grooves. These grooves prevent the connecting column 501 from slipping and limit its position, ensuring convenient removal and removal of the connecting block 5. The contraction limiter 503 is provided with an assembly slot. These slots also serve as an assembly limiter for the position-limiting connecting block 8.

[0036] like Figures 1 to 2 As shown, both sides of the shrinkage limiting body 503 are fixedly assembled with sliding limiting blocks 7, and the sliding limiting blocks 7 are bolted to the shrinkage limiting body 503. The sliding limiting blocks 7 play a role of movement limiting for the engaging boss 9.

[0037] like Figures 1 to 2 As shown, a spring 6 is assembled between the connecting block 5 and the disassembly flat head 2. The disassembly flat head 2 is supported and limited by the contraction and reset of the spring 6.

[0038] like Figures 1 to 4 As shown, the end of the disassembly flat head 2 close to the connecting block 5 is integrally formed with a limit connecting block 8, which is slidably assembled in the assembly slot, and the spring 6 is arranged and assembled in the limit connecting block 8. The assembly of the disassembly flat head 2 and the connecting block 5 is limited by the mutual cooperation between the limit connecting block 8 and the contraction limiter 503.

[0039] like Figures 1 to 4 As shown, a pair of engaging bosses 9 are integrally formed at one end of the disassembly flat head 2 close to the connecting block 5, and the pair of engaging bosses 9 are arranged in conjunction with the sliding limit block 7. It is convenient to limit the movement of the disassembly flat head 2 by slidingly limiting the engaging bosses 9.

[0040] like Figures 5 and 6 As shown, the end of the disassembly flat head 2 away from the handle 1 is integrally formed with multiple evenly distributed anti-slip barbs 10. The provision of multiple anti-slip barbs 10 ensures the contact stability between the disassembly flat head 2 and the crown groove, ensuring the stability of disassembly of the crown.

[0041] In specific use, when using the disassembly flat head 2 to remove a crown, a bur is used to create a groove on the crown, and then the end of the disassembly flat head 2 is placed into the groove to pry the crown, thereby causing the crown to fall off. During the process of prying the crown with the disassembly flat head 2, the contact stability between the end of the disassembly flat head 2 and the groove on the crown can be ensured by the multiple anti-slip barbs 10. At the same time, the limiting connecting block 8 can slide within the shrinking limiting body 503 to reduce the adverse effects of hand shaking on the use of the disassembly flat head 2.

[0042] In addition, when the disassembly flat head 2 needs to be replaced, the multiple shrinkage fixing plates on the assembly joint 3 can be loosened by rotating the locking nut 4. Then, the disassembly flat head 2 can be disassembled and replaced by plugging and unplugging the assembly connecting rod 502, which simplifies the process of disassembly and replacement of the disassembly flat head 2.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A dental crown removal device, comprising a handle and a removal flat head, wherein the handle is plugged into one side of the removal flat head, characterized in that: An assembly joint is integrally formed on one end of the handle close to the disassembly flat head, a locking nut is threadedly connected to the outer side of the assembly joint, a connecting block is inserted into the assembly joint, and the end of the connecting block located outside the assembly joint is plugged into the disassembly flat head, and a spring is installed between the connecting block and the disassembly flat head.

2. A dental crown removal device according to claim 1, characterized in that: The diameter of the assembly joint at one end close to the handle is larger than the diameter of the other end, and a plurality of evenly distributed shrinkage gaps are provided on the outer side of the assembly joint.

3. A dental crown removal device according to claim 2, characterized in that: The multiple shrinkage gaps divide the assembly joint into multiple shrinkage fixing plates, the outer sides of the multiple shrinkage fixing plates are synchronously provided with external threads, and the inner side of the locking nut is provided with internal threads matching the assembly joint.

4. A dental crown removal device according to any one of claims 1 to 3, characterized in that: The connecting block consists of a connecting column, an assembly connecting rod and a shrinkage limiter. The assembly connecting rod is fixedly assembled on the side of the connecting column close to the disassembly flat head, and the shrinkage limiter is fixedly assembled on the side of the connecting column away from the assembly connecting rod.

5. A dental crown removal device according to claim 4, characterized in that: A plurality of evenly distributed anti-slip grooves are provided on the outer side of the connecting column, and an assembly sliding groove is provided in the shrinkage limiter.

6. A dental crown removal device according to claim 4, characterized in that: Sliding limiting blocks are fixedly mounted on both sides of the shrinkage limiting body, and the sliding limiting blocks are connected to the shrinkage limiting body by using bolts.

7. The dental crown removal device according to claim 5, characterized in that: The disassembly flat head is integrally formed with one end of the connection block close to the connection block, the limit connection block is slidably assembled in the assembly sliding groove, and the spring is arranged and assembled in the limit connection block.

8. The dental crown removal device according to claim 6, characterized in that: A pair of engaging bosses are integrally formed on one end of the disassembly flat head close to the connecting block, and the pair of engaging bosses are matched with the sliding limit block.

9. The dental crown removal device according to claim 1, characterized in that: The end of the disassembly flat head away from the handle is integrally formed with a plurality of evenly distributed anti-slip barbs.

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