CN217448037U - Depth limiting structure for dental drill - Google Patents
Depth limiting structure for dental drill Download PDFInfo
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- CN217448037U CN217448037U CN202221168388.2U CN202221168388U CN217448037U CN 217448037 U CN217448037 U CN 217448037U CN 202221168388 U CN202221168388 U CN 202221168388U CN 217448037 U CN217448037 U CN 217448037U
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- depth
- depth limiting
- dental drill
- limiting seat
- seat
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Abstract
The utility model provides a dental drill depth limiting structure, which belongs to the field of oral medical equipment and comprises a depth limiting seat and a depth limiting sleeve which are coaxially arranged up and down, wherein the depth limiting seat and the depth limiting sleeve are connected in an up-and-down assembly manner; the depth limiting seat is of a cup-shaped structure with a downward opening, a through hole is formed in the upper end of the depth limiting seat, the end of a dental drill penetrates through the through hole and then is connected with the driving end of the dental handpiece, so that the dental drill rotates, the diameter of the through hole is larger than that of the dental drill, a positioning cavity is formed in the depth limiting seat, a rubber ring is clamped in the positioning cavity, and the inner ring of the rubber ring is in interference fit with the outer ring of the dental drill, so that the depth limiting seat is clamped on the dental drill through the rubber ring and cannot fall off; the depth limiting sleeve is of a hollow cylindrical structure, and the depth limiting sleeve and the depth limiting seat are axially positioned through a shoulder structure. The utility model discloses the fixed setting of limit dark seat, the specification of limit dark cover can carry out quick change, and reduce cost can inject the dental drill and be equipped with the hole degree of depth, prevents that medical personnel from error operation.
Description
Technical Field
The utility model belongs to oral cavity medical equipment field relates to the operation of planting the implant, especially relates to dental drill limit for depth structure.
Background
With the development of the dental implant technology, the technology is more and more delicate, the use time is long, the comfort level is improved, the cost is greatly reduced, and the acceptance of people to the dental implant is higher and higher.
The dental implant workers have various types, one of which is a dental drill, and the dental drill is equipment for treating toothache, and is electric or pneumatic. The rotational speed of present dental drill is very fast, so need spray with the frozen water, in order to prevent the drill bit high temperature, the application of local anesthetic makes patient hardly feel painful, but if have medical personnel misoperation, can cause certain injury to the patient, so the dental drill is at the in-process that uses, the degree of depth that needs control drilling, domestic trade adopts multiple depth-limiting cover specification to reach different depth-limiting purpose mostly, but depth-limiting cover specification model number is many, the processing degree of difficulty is big, medical personnel operating efficiency is slow.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide dental drill depth limiting structure, solved above-mentioned problem, the fixed setting of depth limiting seat, the specification of depth limiting cover can carry out quick change, and reduce cost can inject the dental drill and be equipped with the hole degree of depth, prevents that medical personnel from the operation of making mistakes.
In order to solve the technical problem, the utility model discloses a technical scheme is: the dental drill depth limiting structure comprises a depth limiting seat and a depth limiting sleeve which are coaxially arranged up and down, and the depth limiting seat and the depth limiting sleeve are connected in an up-and-down assembling manner;
the depth limiting seat is of a cup-shaped structure with a downward opening, a through hole is formed in the upper end of the depth limiting seat, the end of a dental drill penetrates through the through hole and then is connected with the driving end of the dental handpiece, so that the dental drill rotates, the diameter of the through hole is larger than that of the dental drill, a positioning cavity is formed in the depth limiting seat, a rubber ring is clamped in the positioning cavity, and the inner ring of the rubber ring is in interference fit with the outer ring of the dental drill, so that the depth limiting seat is clamped on the dental drill through the rubber ring and cannot fall off;
the depth limiting sleeve is of a hollow cylindrical structure, and the depth limiting sleeve and the depth limiting seat are axially positioned through a shoulder structure.
Furthermore, an avoiding fillet is arranged on the outer ring of the upper end of the depth limiting seat, and the top surface of the depth limiting seat is attached to the lower end surface of the dental handpiece driving part.
Furthermore, the positioning cavity is an annular cavity and is arranged at the lower end of the through hole, and the positioning cavity and the through hole are communicated.
Furthermore, the thickness of the rubber ring is greater than the wall thickness of two sides of the depth limiting seat and is less than the thickness of the top end of the depth limiting seat.
Furthermore, the lower end outer ring of the depth limiting seat is provided with an inwards concave positioning ring surface, the upper end outer ring of the depth limiting sleeve is provided with a positioning bulge, the positioning ring surface extends into the inner ring of the positioning bulge in a clearance fit mode, and the depth limiting seat and the depth limiting sleeve are in a stroke circular bead structure to perform axial positioning.
Furthermore, the depth limiting seat and the depth limiting sleeve are the same in length, the inner diameter and the outer diameter of the depth limiting seat and the inner diameter and the outer diameter of the depth limiting sleeve are the same, and the length of the positioning bulge is the same as that of the positioning ring surface.
Further, the length of the positioning projection is 1/4-1/3 of the length of the depth stop.
Furthermore, the outer ring of the depth-limiting sleeve is provided with a plurality of grooves which are arranged in parallel, the section of each groove is arc-shaped, and the depth of each groove is 1/5 of the thickness of the depth-limiting sleeve.
Further, the depth limiting seat and the depth limiting sleeve are both made of stainless steel.
Compared with the prior art, the utility model has the advantages and positive effect as follows.
1. The utility model adopts two parts of a depth limiting seat and a depth limiting sleeve which are of split structures, the depth limiting seat is of fixed product specification, and the depth limiting sleeve can be replaced at will, thereby saving materials, being light and convenient, reducing the processing difficulty, improving the operating efficiency of medical personnel and the like;
2. this application sets up each parameter such as wall thickness, length, degree of depth, has both guaranteed the intensity of part itself, promotes the firm nature of part complex again, simple structure moreover, and convenient operation is swift.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of a depth stop structure of a dental drill according to the present invention;
FIG. 2 is a partial sectional view of the depth stop structure of the dental drill of the present invention;
fig. 3 is a sectional view of the depth stop of the present invention;
fig. 4 is a cross-sectional view of the depth stop sleeve of the present invention;
fig. 5 is a schematic structural view of the depth-limiting sleeve of the present invention.
Reference numerals:
1. a dental handpiece; 2. a depth limiting seat; 21. a through hole; 22. a positioning cavity; 23. a positioning ring surface; 3. a depth limiting sleeve; 31. positioning the projection; 32. a groove; 4. a dental drill; 5. a rubber ring.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The dental handpiece is also called as a dental handpiece, is not a handpiece seen in our lives, is a medical instrument specially used for stomatology, can be used for cleaning teeth and grinding decayed teeth and damaged teeth, has more types, can be divided into a high-speed handpiece and a low-speed handpiece according to the rotating speed and the structure, and can drive tools matched with the high-speed handpiece, such as a dental drill and the like to rotate.
As shown in fig. 1-5, the utility model relates to a dental drill depth-limiting structure, which comprises a depth-limiting seat 2 and a depth-limiting sleeve 3 which are coaxially arranged up and down, wherein the depth-limiting seat 2 and the depth-limiting sleeve 3 are connected in an up-and-down assembly manner;
the depth limiting base 2 is of a cup-shaped structure with a downward opening, a through hole 21 is formed in the upper end of the depth limiting base 2, the end portion of the dental drill 4 penetrates through the through hole 21 and then is connected with the driving end of the dental handpiece 1, so that the dental drill 4 rotates, the diameter of the through hole 21 is larger than that of the dental drill 4, a positioning cavity 22 is formed in the depth limiting base 2, a rubber ring 5 is clamped in the positioning cavity 22, and the inner ring of the rubber ring 5 is in interference fit with the outer ring of the dental drill 4, so that the depth limiting base 2 is clamped on the dental drill 4 through the rubber ring 5 and cannot fall off;
the depth limiting sleeve 3 is of a hollow cylindrical structure, and the depth limiting sleeve 3 and the depth limiting seat 2 are axially positioned through a shoulder structure.
Preferably, the outer ring of the upper end of the depth limiting seat 2 is provided with a clearance fillet, the top surface of the depth limiting seat 2 is fitted with the lower end surface of the driving part of the dental handpiece 1, the appearance is attractive, and the operator is not easily damaged.
Preferably, the positioning cavity 22 is an annular cavity, is arranged at the lower end of the through hole 21, is communicated with the through hole, is arranged on the annular cavity, is equal to the upper part of the dental drill 4 fixed with the depth limiting seat 2, has high stability, has a depth which is half of the thickness of the depth limiting seat 2, and ensures the firmness of fixing the rubber ring 5 while ensuring the strength.
Preferably, the thickness of the rubber ring 5 is greater than the wall thickness of the two sides of the depth limiting seat 2 and less than the thickness of the top end of the depth limiting seat 2, so that the firmness of fixation is ensured, and meanwhile, the strength of the depth limiting seat 2 is prevented from being reduced.
Preferably, the lower extreme outer lane of limit dark seat 2 is equipped with the location anchor ring 23 of indent, and the upper end outer lane of limit dark cover 3 is equipped with the location arch 31, and the location anchor ring 23 stretches into the protruding 31 inner circle clearance fit in location, and limit dark seat 2 and limit dark 3 stroke circular bead structures of cover carry out axial positioning, simple structure, convenient operation does not have other complex parts moreover, reduces the part, promotes the effect of assembly, reduces the risk that the part dropped the oral cavity in addition, promotes the security.
Preferably, the depth limiting seat 2 and the depth limiting sleeve 3 are the same in length, the inner diameter and the outer diameter of the depth limiting seat and the depth limiting sleeve are the same, the length of the positioning protrusion 31 is the same as that of the positioning ring surface 23, the same cutter is conveniently adopted for processing, the processing process is simplified, the processing cost is reduced, more preferably, the length of the positioning protrusion 31 is 1/4-1/3 of the length of the depth limiting seat 2, the matching stability of the depth limiting seat and the depth limiting sleeve is ensured, meanwhile, the problems of overlarge contact area and poor plugging are avoided, and the convenience in operation is improved on the premise of considering stability.
Preferably, the outer lane of limit dark cover 3 is equipped with a plurality of parallel arrangement's recess 32, and the section of recess 32 is the arc, and the degree of depth of recess 32 is the 1/5 of limit dark cover 3 thickness, guarantees intensity, increases frictional force simultaneously, conveniently changes and takes, and the recess 32 of this shape, the arc is difficult to cause the injury to patient and operator.
Preferably, the depth limiting seat 2 and the depth limiting sleeve 3 are both made of stainless steel, are convenient to process, are not easy to rust, have long service life and high safety, and are not easy to react with air, saliva and the like in the oral cavity of a patient.
In actual working process, rubber circle 5 elasticity can be put into the location chamber 22 of limit dark seat 2, limit dark seat 2 can not drop on dental drill 4 through 5 inner circle cards of rubber circle, the limit dark cover 3 of front end can be changed according to the in service behavior in the operation, material saving, alleviate the processing degree of difficulty, it is light, improve medical personnel operating efficiency scheduling problem, it is many to have solved current limit dark 3 specification models of cover, the processing degree of difficulty is big, medical personnel operating efficiency hangs down the problem, to dental drill 4 at the planting operation in-process, the pioneer point bores, the reamer plays the operation of injecing the degree of depth.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (9)
1. Dental drill limit for depth structure, its characterized in that: the depth limiting device comprises a depth limiting seat and a depth limiting sleeve which are coaxially arranged up and down, wherein the depth limiting seat and the depth limiting sleeve are connected in an up-and-down assembly manner;
the depth limiting seat is of a cup-shaped structure with a downward opening, a through hole is formed in the upper end of the depth limiting seat, the end of a dental drill penetrates through the through hole and then is connected with the driving end of the dental handpiece, so that the dental drill rotates, the diameter of the through hole is larger than that of the dental drill, a positioning cavity is formed in the depth limiting seat, a rubber ring is clamped in the positioning cavity, and the inner ring of the rubber ring is in interference fit with the outer ring of the dental drill, so that the depth limiting seat is clamped on the dental drill through the rubber ring and cannot fall off;
the depth limiting sleeve is of a hollow cylindrical structure, and the depth limiting sleeve and the depth limiting seat are axially positioned through a shoulder structure.
2. The dental drill depth-limiting structure according to claim 1, wherein: the outer ring of the upper end of the depth limiting seat is provided with a clearance fillet, and the top surface of the depth limiting seat is attached to the lower end surface of the dental handpiece driving part.
3. The dental drill depth-limiting structure according to claim 1, wherein: the positioning cavity is an annular cavity and is arranged at the lower end of the through hole, and the positioning cavity and the through hole are communicated.
4. The dental drill depth-limiting structure according to claim 1, wherein: the thickness of the rubber ring is larger than the wall thickness of two sides of the depth limiting seat and smaller than the thickness of the top end of the depth limiting seat.
5. The dental drill depth-limiting structure according to claim 1, wherein: the depth limiting seat is characterized in that an inner concave positioning ring surface is arranged on the outer ring of the lower end of the depth limiting seat, a positioning protrusion is arranged on the outer ring of the upper end of the depth limiting sleeve, the positioning ring surface extends into the inner ring of the positioning protrusion in clearance fit, and the depth limiting seat and the depth limiting sleeve are in a stroke circular bead structure and are axially positioned.
6. The dental drill depth-limiting structure according to claim 5, wherein: the depth limiting seat and the depth limiting sleeve are the same in length, the inner diameter and the outer diameter of the depth limiting seat and the depth limiting sleeve are the same, and the length of the positioning bulge is the same as that of the positioning ring surface.
7. The dental drill depth-limiting structure according to claim 6, wherein: the length of the positioning projection is 1/4-1/3 of the length of the depth stop.
8. The dental drill depth stop structure according to any one of claims 1 to 7, wherein: the outer ring of the depth-limiting sleeve is provided with a plurality of parallel grooves, the cross section of each groove is arc-shaped, and the depth of each groove is 1/5 the thickness of the depth-limiting sleeve.
9. The dental drill depth stop structure according to any one of claims 1 to 5, wherein: the depth limiting seat and the depth limiting sleeve are both made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221168388.2U CN217448037U (en) | 2022-05-16 | 2022-05-16 | Depth limiting structure for dental drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221168388.2U CN217448037U (en) | 2022-05-16 | 2022-05-16 | Depth limiting structure for dental drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217448037U true CN217448037U (en) | 2022-09-20 |
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ID=83274812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221168388.2U Active CN217448037U (en) | 2022-05-16 | 2022-05-16 | Depth limiting structure for dental drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217448037U (en) |
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2022
- 2022-05-16 CN CN202221168388.2U patent/CN217448037U/en active Active
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