Work tip mounting structure and gutta-percha cutter

Abstract

The utility model belongs to the technical field of dental medical equipment, and relates to a work tip mounting structure and a gutta-percha cutter. The work tip mounting structure comprises a work tip assembly, a mounting base, a handle fixing sleeve and a locking piece, the locking piece comprises a rotating ring, the end of the rotating ring is provided with at least two protruding edges extending from the edge to the center, the end of the mounting base is connected with the handle fixing sleeve in an inserted mode, and the handle fixing sleeve is connected with the rotating ring in an inserted mode. The rotating ring is detachably connected with the outer wall of the handle fixing sleeve, the protruding edge abuts against the installation base, and the end, away from the handle fixing sleeve, of the installation base is connected with the work tip assembly. Through cooperation of the mounting base, the handle fixing sleeve and the locking piece, fixed and detachable connection of the work tip assembly and the handle is achieved, and maintenance of the work tip assembly and the handle is conveniently achieved.

Description

Technical Field

[0001] The present application relates to the technical field of dental medical equipment, and more specifically, to a working tip mounting structure and a gutta-percha cutter. Background Art

[0002] In dental root canal treatment, gutta-percha often needs to be cut into appropriate lengths or shapes to meet different treatment needs; however, in existing gutta-percha cutters, the working tip and the handle are mostly fixedly connected, making it difficult to separate, disassemble and repair the working tip or the handle when it is damaged. Utility Model Content

[0003] The technical solution of the present application is to provide a working tip installation structure and a gutta-percha cutter, which are used to solve the problem in the prior art that the working tip and the handle are difficult to separate, disassemble and repair.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a working tip installation structure, which adopts the following technical solution:

[0005] A working tip mounting structure comprises: a working tip assembly, a mounting base, a handle fixing sleeve and a locking piece, wherein the locking piece comprises a rotating ring, the end of the rotating ring is provided with at least two protrusions extending from the edge to the center, the end of the mounting base is plugged into the handle fixing sleeve, the rotating ring is detachably connected to the outer wall of the handle fixing sleeve, the protrusion abuts against the mounting base, and the end of the mounting base away from the handle fixing sleeve is connected to the working tip assembly.

[0006] Furthermore, one end of the mounting base away from the handle fixing sleeve is plugged into the working tip assembly.

[0007] Furthermore, the mounting base includes a seat body, a limiting ring is provided at the end of the seat body, the diameter of the seat body is smaller than the distance between the two oppositely arranged protrusions, the diameter of the limiting ring is larger than the distance between the two oppositely arranged protrusions, and the side of the limiting ring away from the handle fixing sleeve abuts against the protrusion.

[0008] Furthermore, a connector is provided on a side of the limiting ring away from the seat body, the connector is plugged into the handle fixing sleeve, and a side of the limiting ring adjacent to the connector abuts against an end of the handle fixing sleeve.

[0009] Furthermore, the working tip assembly and the mounting base are connected via a plug-in structure, which includes a limiting protrusion and a limiting groove, one of which is provided on the working tip assembly and the other is provided on the mounting base, and the limiting protrusion and the limiting groove are plugged in.

[0010] Further, the number of the limiting protrusions is multiple, and the number of the limiting groove is one; or

[0011] The number of the limiting protrusion is one, and the number of the limiting grooves is multiple; or

[0012] The number of the limiting protrusions and the number of the limiting grooves are both multiple, one of the multiple limiting protrusions and the multiple limiting grooves is equidistantly arranged on the working tip assembly, and the other is equidistantly arranged on the mounting base; the number of the limiting protrusions and the limiting grooves is the same, or the number of the limiting protrusions is a multiple of the number of the limiting grooves, or the number of the limiting grooves is a multiple of the number of the limiting protrusions.

[0013] Further, the working tip assembly includes a working tip fixing sleeve and a working tip body disposed on the working tip fixing sleeve;

[0014] One of the limiting protrusion and the limiting groove is arranged on the inner wall of the working tip fixing sleeve, and the other is arranged on the outer wall of the mounting base; or one of the limiting protrusion and the limiting groove is arranged on the outer wall of the working tip fixing sleeve, and the other is arranged on the inner wall of the mounting base.

[0015] Furthermore, the mounting base is provided with mounting holes penetrating through two ends, and the mounting holes are used for the rear end of the working tip body to pass through.

[0016] Furthermore, an inner wall of the handle fixing sleeve is provided with an inserting groove, and the connector is inserted into the inserting groove.

[0017] In order to solve the above technical problems, the technical solution of the present application also provides a gutta-percha cutter, which adopts the following technical solution:

[0018] A gutta-percha cutter comprises the working tip mounting structure as described above.

[0019] Compared with the prior art, the technical solution of the present application has the following beneficial effects: by cooperating with the mounting base, the handle fixing sleeve and the locking member, a detachable connection between the working tip assembly and the handle is achieved, so as to facilitate the maintenance of the working tip assembly and the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1is a three-dimensional diagram of a working tip installation structure provided in an embodiment of the present application;

[0022] Figure 2 yes Figure 1 Exploded diagram of

[0023] Figure 3 yes Figure 1 Bottom view of

[0024] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0025] Figure numerals: 1. working tip assembly; 11. working tip fixing sleeve; 12. working tip body; 2. mounting base; 21. seat body; 22. limiting ring; 23. plug-in piece; 24. mounting hole; 3. handle fixing sleeve; 31. upper shell; 32. lower shell; 33. plug-in slot; 4. locking piece; 41. rotating ring; 42. convex edge; 5. plug-in structure; 51. limiting protrusion; 52. limiting groove. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0029] The present application embodiment provides a working tip mounting structure, such as Figures 1 to 4As shown, it includes: a working tip assembly 1, a mounting base 2, a handle fixing sleeve 3 and a locking piece 4, the locking piece 4 includes a rotating ring 41, the end of the rotating ring 41 is provided with at least two flanges 42 extending from the edge to the center, the end of the mounting base 2 is plugged into the handle fixing sleeve 3, the rotating ring 41 is detachably connected to the outer wall of the handle fixing sleeve 3, the flange 42 abuts against the mounting base 2, and the end of the mounting base 2 away from the handle fixing sleeve 3 is connected to the working tip assembly 1.

[0030] The assembly process of a working tip mounting structure provided by the embodiment of the present application is as follows: the handle fixing sleeve 3 is used to connect with the handle; first, the mounting base 2 and the handle fixing sleeve 3 are plugged together; then, the rotating ring 41 passes through the mounting base 2, so that the rotating ring 41 is connected to the outer wall of the handle fixing sleeve 3, and the convex edge 42 is abutted against the mounting base 2, so that the mounting base 2 and the handle fixing sleeve 3 are fixed; finally, the working tip assembly 1 is connected to the mounting base 2;

[0031] The disassembly process of the working tip mounting structure is as follows: first, separate the working tip assembly 1 and the mounting base 2; then, separate the rotating ring 41 from the outer wall of the handle fixing sleeve 3, cancel the abutment between the flange 42 and the mounting base 2, and make the rotating ring 41 disengage from the mounting base 2 to cancel the fixation between the mounting base 2 and the handle fixing sleeve 3; finally, pull the mounting base 2 off the handle fixing sleeve 3 to realize the disassembly of the working tip assembly 1 and the handle.

[0032] The beneficial effect of a working tip mounting structure provided by an embodiment of the present application is that a detachable connection between the working tip assembly 1 and the handle is achieved through the cooperation of the mounting base 2, the handle fixing sleeve 3 and the locking member 4, so as to facilitate the maintenance of the working tip assembly 1 and the handle.

[0033] It should be noted that the plurality of protrusions 42 may also form an annular structure that is continuously arranged along the end of the rotating ring 41 , and the present application does not limit this.

[0034] Furthermore, one end of the mounting base 2 away from the handle fixing sleeve 3 is plugged into the working tip assembly 1 .

[0035] In this embodiment, after the working tip assembly 1 is removed from the mounting base 2, it is easier to replace or repair the damaged working tip assembly 1; in addition, if the mounting base 2 is damaged, it can also be replaced or repaired separately and disassembled into smaller parts, so that subsequent repair or replacement will be more cost-effective.

[0036] In this embodiment, when it is necessary to switch the use angle of the working tip assembly 1, the working tip assembly 1 is unplugged from the mounting base 2, and after the working tip assembly 1 is rotated to the required angle, the working tip assembly 1 is plugged into the mounting base 2; this effectively improves the efficiency of switching the use angle of the working tip assembly 1, thereby improving the treatment efficiency.

[0037] Furthermore, the mounting base 2 includes a seat body 21, a limiting ring 22 is provided at the end of the seat body 21, the diameter of the seat body 21 is smaller than the distance between the two oppositely arranged protrusions 42, the diameter of the limiting ring 22 is larger than the diameter between the two oppositely arranged protrusions 42, and the side of the limiting ring 22 away from the handle fixing sleeve 3 is in contact with the protrusion 42.

[0038] Furthermore, a connector 23 is provided on a side of the limiting ring 22 away from the seat body 21 , the connector 23 is plugged into the handle fixing sleeve 3 , and a side of the limiting ring 22 adjacent to the connector 23 abuts against an end of the handle fixing sleeve 3 .

[0039] In this embodiment, after the mounting base 2 and the handle fixing sleeve 3 are plugged together, since the diameter of the seat body 21 is smaller than the distance between the two oppositely arranged protrusions 42, the rotating ring 41 can be inserted from the end of the seat body 21 away from the handle fixing sleeve 3, and then the rotating ring 41 is connected to the outer wall of the handle fixing sleeve 3, and the diameter of the limiting ring 22 is larger than the diameter between the two oppositely arranged protrusions 42, so that the protrusion 42 can abut against the limiting ring 22, thereby preventing the mounting base 2 from falling off the locking piece 4, and achieving the fixation of the mounting base 2 and the handle fixing sleeve 3; in addition, through the plug-in setting of the plug-in piece 23, it is convenient to align the mounting base 2 with the handle fixing sleeve 3 and install it firmly.

[0040] Furthermore, the working tip assembly 1 and the mounting base 2 are connected via a plug-in structure 5, and the plug-in structure 5 includes a limiting protrusion 51 and a limiting groove 52, one of the limiting protrusion 51 and the limiting groove 52 is arranged on the working tip assembly 1, and the other is arranged on the mounting base 2, and the limiting protrusion 51 and the limiting groove 52 are plugged in.

[0041] In this embodiment, during installation, the working tip assembly 1 is aligned with the mounting base 2 so that the limiting protrusion 51 enters the limiting groove 52, thereby limiting the position of the working tip assembly 1 and the mounting base 2, preventing the working tip assembly 1 from rotational displacement, and ensuring that the working tip assembly 1 is securely installed.

[0042] Specifically, the working tip assembly 1 is connected to the base body 21 via a plug-in structure 5 .

[0043] Optionally, there are multiple limiting protrusions 51 and one limiting groove 52 .

[0044] In the above embodiment, when it is necessary to switch the use angle of the working tip assembly 1, the working tip assembly 1 is first pulled out from the mounting base 2 to disengage the limiting protrusion 51 from the limiting groove 52, and then the working tip assembly 1 is rotated to the required angle to align the other limiting protrusion 51 with the limiting groove 52, and then the working tip is plugged into the mounting base 2.

[0045] Optionally, the number of the limiting protrusion 51 is one, and the number of the limiting grooves 52 is multiple.

[0046] Optionally, the number of the limiting protrusions 51 and the number of the limiting grooves 52 are both multiple, and one of the multiple limiting protrusions 51 and the multiple limiting grooves 52 is equidistantly arranged on the working tip assembly 1, and the other is equidistantly arranged on the mounting base 2; the number of the limiting protrusions 51 and the limiting grooves 52 are the same, or the number of the limiting protrusions 51 is a multiple of the number of the limiting grooves 52, or the number of the limiting grooves 52 is a multiple of the number of the limiting protrusions 51.

[0047] In the above two embodiments, when it is necessary to switch the use angle of the working tip assembly 1, the working tip assembly 1 is first pulled out from the mounting base 2 to disengage all the limiting protrusions 51 from the limiting grooves 52, and then the working tip assembly 1 is rotated to the required angle to align the limiting protrusion 51 with another limiting groove 52, and then the working tip is plugged into the mounting base 2.

[0048] Furthermore, the working tip assembly 1 includes a working tip fixing sleeve 11 and a working tip body 12 arranged on the working tip fixing sleeve 11; one of the limiting protrusion 51 and the limiting groove 52 is arranged on the inner wall of the working tip fixing sleeve 11, and the other is arranged on the outer wall of the mounting base 2; or one of the limiting protrusion 51 and the limiting groove 52 is arranged on the outer wall of the working tip fixing sleeve 11, and the other is arranged on the inner wall of the mounting base 2.

[0049] Preferably, the limiting protrusion 51 is arranged on the inner wall of the working tip fixing sleeve 11, and the limiting groove 52 is arranged on the outer wall of the mounting base 2; so that when switching the use angle of the working tip body 12 or replacing a new working tip assembly 1, the alignment of the limiting protrusion 51 and the limiting groove 52 can be observed, thereby improving efficiency.

[0050] Specifically, one of the limiting protrusion 51 and the limiting groove 52 is arranged on the inner wall of the working tip fixing sleeve 11, and the other is arranged on the outer wall of the seat body 21; or one of the limiting protrusion 51 and the limiting groove 52 is arranged on the outer wall of the working tip fixing sleeve 11, and the other is arranged on the inner wall of the seat body 21.

[0051] Furthermore, the mounting base 2 is provided with mounting holes 24 penetrating through both ends, and the mounting holes 24 are used for the rear end of the working tip body 12 to pass through.

[0052] In this embodiment, the installation hole 24 is provided to prevent the working tip body 12 from colliding with the installation base 2 , so as to facilitate the installation of the working tip assembly 1 .

[0053] Specifically, the mounting hole 24 is provided on the seat body 21 .

[0054] Furthermore, the inner wall of the rotating ring 41 and the outer wall of the handle fixing sleeve 3 are both provided with threads, and the rotating ring 41 is threadedly connected to the handle fixing sleeve 3 .

[0055] In this embodiment, the rotating ring 41 is threadedly connected to the handle fixing sleeve 3, which improves the assembly speed of the working tip mounting structure; and through the cooperation of the rotating ring 41, the handle fixing sleeve 3, the mounting base 2, and the working tip assembly 1, there is no need to perform special structural design on the handle fixing sleeve 3 to achieve the installation of the working tip assembly 1.

[0056] Furthermore, the handle fixing sleeve 3 includes an upper shell 31 and a lower shell 32 , and the upper shell 31 and the lower shell 32 are buckled.

[0057] In this embodiment, the handle fixing sleeve 3 is divided into an upper shell 31 and a lower shell 32 to facilitate connection with the handle; and the injection molding structure of the upper shell 31 and the lower shell 32 is simpler.

[0058] Furthermore, an inserting groove 33 is provided on the inner wall of the handle fixing sleeve 3 , and the inserting component 23 is inserted into the inserting groove 33 .

[0059] In this embodiment, during installation, the handle fixing sleeve 3 is aligned with the seat body 21 so that the connector 23 enters the connector slot 33, thereby limiting the relative position of the handle fixing sleeve 3 and the seat body 21, preventing the seat body 21 from rotating and displacing, and ensuring that the seat body 21 is securely installed.

[0060] Furthermore, the inner walls of the upper shell 31 and the lower shell 32 are both provided with plug-in grooves 33, and the number of the plug-in components 23 is two; thus, the stability of the mounting base 2 and the handle fixing component is improved.

[0061] The embodiment of the present application further provides a gutta-percha cutter, which includes the working tip mounting structure as described above.

[0062] The beneficial effect of the gutta-percha cutter provided in the embodiment of the present application is that the working tip assembly 1 and the handle are detachably connected by cooperating with the mounting base 2, the handle fixing sleeve 3 and the locking member 4, so as to facilitate the maintenance of the working tip assembly 1 and the handle.

[0063] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A working tip mounting structure, characterized in that: include: A working tip assembly, a mounting base, a handle fixing sleeve and a locking piece, wherein the locking piece includes a rotating ring, the end of the rotating ring is provided with at least two protrusions extending from the edge to the center, the end of the mounting base is plugged into the handle fixing sleeve, the rotating ring is detachably connected to the outer wall of the handle fixing sleeve, the protrusion abuts against the mounting base, and the end of the mounting base away from the handle fixing sleeve is connected to the working tip assembly.

2. The working tip mounting structure according to claim 1, characterized in that: One end of the mounting base away from the handle fixing sleeve is plugged into the working tip assembly.

3. The working tip mounting structure according to claim 1 or 2, characterized in that: The mounting base includes a seat body, and a limiting ring is provided at the end of the seat body. The diameter of the seat body is smaller than the distance between the two oppositely arranged protrusions, and the diameter of the limiting ring is larger than the distance between the two oppositely arranged protrusions. The side of the limiting ring away from the handle fixing sleeve abuts against the protrusion.

4. The working tip mounting structure according to claim 3, characterized in that: A plug-in component is provided on a side of the limiting ring away from the seat body, the plug-in component is plugged into the handle fixing sleeve, and a side of the limiting ring adjacent to the plug-in component abuts against an end of the handle fixing sleeve.

5. The working tip mounting structure according to claim 1 or 2, characterized in that: The working tip assembly and the mounting base are connected via a plug-in structure, which includes a limiting protrusion and a limiting groove. One of the limiting protrusion and the limiting groove is arranged on the working tip assembly, and the other is arranged on the mounting base. The limiting protrusion and the limiting groove are plugged in.

6. The working tip mounting structure according to claim 5, characterized in that: The number of the limiting protrusions is multiple, and the number of the limiting groove is one; or The number of the limiting protrusion is one, and the number of the limiting grooves is multiple; or The number of the limiting protrusions and the number of the limiting grooves are both multiple, one of the multiple limiting protrusions and the multiple limiting grooves is equidistantly arranged on the working tip assembly, and the other is equidistantly arranged on the mounting base; the number of the limiting protrusions and the limiting grooves is the same, or the number of the limiting protrusions is a multiple of the number of the limiting grooves, or the number of the limiting grooves is a multiple of the number of the limiting protrusions.

7. The working tip mounting structure according to claim 5, characterized in that: The working tip assembly comprises a working tip fixing sleeve and a working tip body arranged on the working tip fixing sleeve; One of the limiting protrusion and the limiting groove is arranged on the inner wall of the working tip fixing sleeve, and the other is arranged on the outer wall of the mounting base; or one of the limiting protrusion and the limiting groove is arranged on the outer wall of the working tip fixing sleeve, and the other is arranged on the inner wall of the mounting base.

8. The working tip mounting structure according to claim 7, characterized in that: The mounting base is provided with mounting holes penetrating through two ends, and the mounting holes are used for the rear end of the working tip body to pass through.

9. The working tip mounting structure according to claim 4, characterized in that: The inner wall of the handle fixing sleeve is provided with an inserting groove, and the inserting piece is inserted into the inserting groove.

10. A gutta-percha cutter, characterized in that: It comprises the working tip mounting structure according to any one of claims 1 to 9.

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