CN220089657U - Automatic replacing device for drill bit of oral cavity drilling machine - Google Patents
Automatic replacing device for drill bit of oral cavity drilling machine Download PDFInfo
- Publication number
- CN220089657U CN220089657U CN202321047802.9U CN202321047802U CN220089657U CN 220089657 U CN220089657 U CN 220089657U CN 202321047802 U CN202321047802 U CN 202321047802U CN 220089657 U CN220089657 U CN 220089657U
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- CN
- China
- Prior art keywords
- drill bit
- sleeve
- clamping
- pipe section
- shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000000214 mouth Anatomy 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 206010044029 Tooth deposit Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses an automatic drill bit replacing device of a drilling machine for an oral cavity, which comprises a holding tube, a first shell and a second shell, wherein the first shell and the second shell are respectively fixed at two ends of the holding tube, a motor and a battery are arranged in the first shell, a sleeve for sleeving a drill bit is rotatably arranged in the second shell through a bearing, a clamping mechanism is arranged in the sleeve and used for clamping the drill bit on the sleeve, and a control mechanism is used for controlling locking or unlocking of the clamping mechanism; the motor drives the sleeve to rotate through the transmission mechanism. When the drill bit is used, the drill bit is inserted into the sleeve and is inserted to the bottom, and then the clamping mechanism automatically locks the drill bit in the sleeve to prevent the drill bit from falling out of the sleeve. When the drill bit needs to be replaced, the clamping mechanism can be controlled by the control mechanism to unlock, so that the drill bit is loosened, at the moment, the drill bit can be quickly pulled out from the sleeve, a new drill bit is reinserted into the sleeve and is inserted into the sleeve, and the clamping mechanism can automatically lock the drill bit in the sleeve, so that the replacement is simple, convenient and quick.
Description
Technical Field
The utility model relates to an automatic drill bit replacing device, in particular to an automatic drill bit replacing device of a drilling machine for an oral cavity.
Background
In oral treatment, dental problems account for a significant portion of them. Dental drills are a special medical instrument for stomatology, which is generally used for cleaning dental calculus, grinding decayed teeth, etc. According to the difference of rotation speed and structure, the existing dental drills can be divided into high-speed dental drills and low-speed dental drills. When in use, the drill bit with corresponding function is replaced according to different use functions to treat teeth; however, the existing dental drills cannot be replaced quickly, replacement is inconvenient, and working efficiency is reduced.
Disclosure of Invention
The utility model aims to solve the problems and provide the automatic drill bit replacing device of the oral cavity drilling machine, which is simple, convenient and quick to replace.
The aim of the utility model can be achieved by adopting the following technical scheme:
the automatic drill bit replacing device for the oral cavity drilling machine comprises a holding tube, a first shell and a second shell which are respectively fixed at two ends of the holding tube, a motor and a battery which are arranged in the first shell, a sleeve which is rotatably arranged in the second shell through a bearing and is used for sleeving a drill bit, a clamping mechanism which is arranged in the sleeve and is used for clamping the drill bit on the sleeve, and a control mechanism which is used for controlling locking or unlocking of the clamping mechanism; the motor drives the sleeve to rotate through the transmission mechanism.
As a preferable scheme, the sleeve comprises a large pipe section and a small pipe section fixedly connected with the upper end of the large pipe section, a regular polygon hole for clamping a drill bit is formed in the large pipe section, and a round hole is formed in the small pipe section; the diameter of the round hole is not larger than the diameter of an inscribed circle of the regular polygon hole; the clamping mechanism comprises a clamping column and a first elastic piece, the clamping column is slidably arranged on the inner wall of the small pipe section, the first elastic piece pushes against the clamping column to push one end of the clamping column to the center of the small pipe section, and a clamping hole which is clamped with the clamping column is formed in the drill bit; the number of the clamping columns is four, and the clamping columns are uniformly arranged on the inner wall of the small pipe section; the other end of the clamping column extends out of the outer wall of the small pipe section and is provided with a fixed ring with a first annular wedge-shaped surface; the control mechanism comprises a sliding rod which is slidably arranged at the upper end of the second shell, a pressing block arranged in the second shell and a second elastic piece which is used for pulling the pressing block away from the small pipe section; one end of the pressing block is fixedly connected with the lower end of the sliding rod, and a second wedge-shaped surface corresponding to the first annular wedge-shaped surface is arranged at the other end of the pressing block; when the sliding rod is pressed, the pressing block overcomes the tensile force of the second elastic piece to slide towards the direction of the small pipe section, and the second wedge-shaped surface pushes against the first annular wedge-shaped surface to release the clamping column from the clamping hole.
As a preferable scheme, the drill bit comprises a regular polygon section and a cylinder fixedly connected with the upper end of the regular polygon section, wherein the diameter of the cylinder is not larger than the diameter of an inscribed circle of the regular polygon section, and the diameter of the cylinder is smaller than the diameter of a round hole; the regular polygon section is sleeved in the regular polygon hole, and the cylinder is sleeved in the round hole.
As a preferable scheme, the transmission mechanism comprises a rotating rod, a driving bevel gear and a driven bevel gear, one end of the rotating rod is fixedly connected with a rotating shaft of the motor, the other end of the rotating rod penetrates through the holding tube and is fixedly connected with the driving bevel gear, and the driven bevel gear is fixedly sleeved on the sleeve.
As a preferred solution, the first housing is provided with a switch button.
As a preferred solution, the first housing is provided with a charging interface for charging the battery.
As a preferable mode, the regular polygon hole is a regular pentagon hole.
The implementation of the utility model has the following beneficial effects:
1. when the drill bit is used, the drill bit is inserted into the sleeve and is inserted to the bottom, and then the clamping mechanism automatically locks the drill bit in the sleeve to prevent the drill bit from falling out of the sleeve. When the drill bit needs to be replaced, the clamping mechanism can be controlled by the control mechanism to unlock, so that the drill bit is loosened, at the moment, the drill bit can be quickly pulled out from the sleeve, a new drill bit is reinserted into the sleeve and is inserted into the sleeve, and the clamping mechanism can automatically lock the drill bit in the sleeve.
2. When the sliding rod is pressed by a finger, the pressing block slides towards the direction of the small pipe section against the tensile force of the second elastic piece, the second wedge-shaped surface pushes against the first annular wedge-shaped surface to release the clamping column from the clamping hole, and then the drill bit can be pulled out of the sleeve; when the finger is released, the pressing block slides in the direction away from the small pipe section under the tensile force of the second elastic piece, the second wedge-shaped piece is separated from the first annular wedge-shaped surface, and meanwhile the clamping column slides in the center direction of the sleeve under the elastic force of the first elastic piece. When the drill bit pushes against the clamping column, the clamping column overcomes the first elastic piece to slide outwards of the sleeve, and then when the clamping hole corresponds to the clamping column in position, the front end of the first elastic piece pushes against the clamping column to be clamped into the clamping hole so as to lock the drill bit in the sleeve
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an automatic drill bit replacing device for an oral cavity drill according to the present utility model.
Fig. 2 is a schematic structural view of the sleeve of fig. 1.
Fig. 3 is a schematic view of the structure of the drill bit of the automatic oral cavity drill bit replacing device of the present utility model.
Fig. 4 is a schematic view of the structure of the large tube section of the sleeve of fig. 1 using equilateral triangular holes.
Fig. 5 is a schematic view of the structure of the large tube section of the sleeve of fig. 1 using regular pentagonal triangular holes.
Fig. 6 is a partial enlarged view of a portion a in fig. 1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 6, the present embodiment relates to an automatic drill bit replacing device for an oral cavity drill, comprising a holding tube 1, a first housing 2 and a second housing 3 respectively fixed at both ends of the holding tube 1, a motor 21 and a battery 22 provided in the first housing 2, a sleeve 6 rotatably installed in the second housing 3 via a bearing 4 and used for sleeving a drill bit 5, a clamping mechanism 7 provided in the sleeve 6 and used for clamping the drill bit 5 on the sleeve 6, and a control mechanism 8 used for controlling locking or unlocking of the clamping mechanism 7; the motor 21 drives the sleeve 6 to rotate through the transmission mechanism 9.
In use, the drill bit 5 is inserted into the sleeve 6 and is inserted to the bottom, and then the clamping mechanism 7 automatically locks the drill bit 5 in the sleeve 6 to prevent the drill bit 5 from being pulled out of the sleeve 6. When the drill bit 5 needs to be replaced, the clamping mechanism is controlled to be unlocked through the control mechanism 8, so that the drill bit 5 is loosened, at the moment, the drill bit 5 can be quickly pulled out of the sleeve 6, a new drill bit 5 is reinserted into the sleeve 6 and is inserted into the sleeve to the bottom, and the clamping mechanism 7 can automatically lock the drill bit 5 in the sleeve 6.
The sleeve 6 comprises a large pipe section 61 and a small pipe section 62 fixedly connected with the upper end of the large pipe section 61, a regular polygon hole 611 for clamping the drill bit 5 is formed in the large pipe section 61, and a round hole 621 is formed in the small pipe section 62; the diameter of the round hole 621 is not larger than the diameter of the inscribed circle of the regular polygon hole 611; the clamping mechanism 7 comprises a clamping column 71 and a first elastic piece 72, the clamping column 71 is slidably arranged on the inner wall of the small pipe section 62, the first elastic piece 72 pushes against the clamping column 71 to push one end of the clamping column 71 to the center of the small pipe section 62, and the drill bit 5 is provided with a clamping hole 51 clamped with the clamping column 71; the number of the clamping columns 71 is four, and the clamping columns are uniformly arranged on the inner wall of the small pipe section 62; the other end of the clamping post 71 extends out of the outer wall of the small pipe section 62 and is provided with a fixed ring 73 with a first annular wedge-shaped surface 731; the control mechanism 8 comprises a sliding rod 81 slidably arranged at the upper end of the second shell 3, a pressing block 82 arranged in the second shell 3, and a second elastic piece 83 for pulling the pressing block 82 away from the small pipe section 62; one end of the pressing block 82 is fixedly connected with the lower end of the sliding rod 81, and a second wedge-shaped surface 84 corresponding to the first annular wedge-shaped surface 731 is arranged at the other end of the pressing block 82; when the sliding rod 81 is pressed by a finger, the pressing block 82 slides towards the small pipe section 62 against the pulling force of the second elastic piece 83, the second wedge-shaped surface 84 pushes the first annular wedge-shaped surface 731 to release the clamping column 71 from the clamping hole 51, and then the drill bit 5 can be pulled out from the sleeve 6; when the finger is released, the pressing block 82 slides away from the small tube section 62 by the pulling force of the second elastic member 83, the second wedge is separated from the first annular wedge-shaped surface 731, and the locking post 71 slides in the direction of pressing the center of the sleeve 6 by the elastic force of the first elastic member 72. The front end of the clamping post 71 is provided with a guiding inclined plane. When the drill bit 5 pushes against the clamping column 71, the clamping column 71 overcomes the first elastic member 72 to slide outwards of the sleeve 6, and then when the clamping hole 51 corresponds to the clamping column 71 in position, the first elastic member 72 pushes against the front end of the clamping column 71 to clamp and insert into the clamping hole 51 so as to lock the drill bit 5 in the sleeve 6.
The drill bit 5 comprises a regular polygon section 52 and a cylinder 53 fixedly connected with the upper end of the regular polygon section 52, wherein the diameter of the cylinder 53 is not larger than the diameter of an inscribed circle of the regular polygon section 52, and the diameter of the cylinder 53 is smaller than the diameter of a round hole 621; the regular polygon section 52 is sleeved in the regular polygon hole 611, and the cylinder 53 is sleeved in the round hole 621. The regular polygon 52 has a size smaller than the size of the regular polygon aperture 611. When the drill bit 5 is installed, only one end of the cylinder 53 is inserted into the regular polygon hole 611 and is inserted to the bottom, the clamping mechanism 7 automatically locks the drill bit 5 in the sleeve 6, and the drill bit 5 is prevented from being separated from the sleeve 6.
The transmission mechanism 9 comprises a rotating rod 91, a driving bevel gear 92 and a driven bevel gear 93, one end of the rotating rod 91 is fixedly connected with a rotating shaft of the motor 21, the other end of the rotating rod 91 penetrates through the holding tube 1 and is fixedly connected with the driving bevel gear 92, and the driven bevel gear 93 is fixedly sleeved on the sleeve 6. The rotating shaft of the motor 21 is fixedly connected with the rotating rod 91 through a coupler. When the motor 21 rotates through the rotating rod 91, the rotating rod 91 drives the driven bevel gear 93 to rotate through the driving bevel gear 92, and then drives the sleeve 6 to rotate, so that the drill bit 5 sleeved in the sleeve 6 is driven to rotate. The driven bevel gear 93 drives the sleeve 6 to rotate by means of the connecting key.
The first housing 2 is provided with a switch key 22. The start or stop of the motor 21 can be controlled by a switch key 22.
The first housing 2 is provided with a charging interface for charging the battery 22. The battery is a rechargeable battery. The first housing 2 is provided with a charging module, and the charging interface is electrically connected with the charging module. The battery 22 is electrically connected to the charging module.
As shown in fig. 5, the regular polygonal hole 611 is a regular pentagonal hole. Of course, as shown in fig. 4, the regular polygonal hole 611 may be a square hole or a triangular hole.
The above disclosure is only a preferred embodiment of the present utility model, and it is needless to say that the scope of the utility model is not limited thereto, and therefore, the equivalent changes according to the claims of the present utility model still fall within the scope of the present utility model.
Claims (7)
1. The automatic drill bit replacing device for the oral cavity drilling machine is characterized by comprising a holding tube, a first shell and a second shell which are respectively fixed at two ends of the holding tube, a motor and a battery which are arranged in the first shell, a sleeve which is rotatably arranged in the second shell through a bearing and is used for sleeving a drill bit, a clamping mechanism which is arranged in the sleeve and is used for clamping the drill bit on the sleeve, and a control mechanism which is used for controlling locking or unlocking of the clamping mechanism; the motor drives the sleeve to rotate through the transmission mechanism.
2. The automatic drill bit replacing device for the oral cavity drilling machine according to claim 1, wherein the sleeve comprises a large pipe section and a small pipe section fixedly connected with the upper end of the large pipe section, a regular polygon hole for clamping a drill bit is formed in the large pipe section, and a round hole is formed in the small pipe section; the diameter of the round hole is not larger than the diameter of an inscribed circle of the regular polygon hole; the clamping mechanism comprises a clamping column and a first elastic piece, the clamping column is slidably arranged on the inner wall of the small pipe section, the first elastic piece pushes against the clamping column to push one end of the clamping column to the center of the small pipe section, and a clamping hole which is clamped with the clamping column is formed in the drill bit; the number of the clamping columns is four, and the clamping columns are uniformly arranged on the inner wall of the small pipe section; the other end of the clamping column extends out of the outer wall of the small pipe section and is provided with a fixed ring with a first annular wedge-shaped surface; the control mechanism comprises a sliding rod which is slidably arranged at the upper end of the second shell, a pressing block arranged in the second shell and a second elastic piece which is used for pulling the pressing block away from the small pipe section; one end of the pressing block is fixedly connected with the lower end of the sliding rod, and a second wedge-shaped surface corresponding to the first annular wedge-shaped surface is arranged at the other end of the pressing block; when the sliding rod is pressed, the pressing block overcomes the tensile force of the second elastic piece to slide towards the direction of the small pipe section, and the second wedge-shaped surface pushes against the first annular wedge-shaped surface to release the clamping column from the clamping hole.
3. The automatic drill bit replacing device for an oral cavity drilling machine according to claim 2, wherein the drill bit comprises a regular polygon section and a cylinder fixedly connected with the upper end of the regular polygon section, the diameter of the cylinder is not larger than the diameter of an inscribed circle of the regular polygon section, and the diameter of the cylinder is smaller than the diameter of a round hole; the regular polygon section is sleeved in the regular polygon hole, and the cylinder is sleeved in the round hole.
4. The automatic drill bit replacing device for an oral cavity drilling machine according to claim 1, wherein the transmission mechanism comprises a rotating rod, a driving bevel gear and a driven bevel gear, one end of the rotating rod is fixedly connected with a rotating shaft of the motor, the other end of the rotating rod penetrates through the holding tube and is fixedly connected with the driving bevel gear, and the driven bevel gear is fixedly sleeved on the sleeve.
5. The automatic oral cavity drill bit replacing device according to claim 1, wherein the first housing is provided with a switch button.
6. The automatic oral cavity drill bit changing device according to claim 1, wherein the first housing is provided with a charging interface for charging a battery.
7. An automatic oral cavity drill bit changing device according to claim 2 or 3, wherein the regular polygonal hole is a regular pentagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321047802.9U CN220089657U (en) | 2023-05-05 | 2023-05-05 | Automatic replacing device for drill bit of oral cavity drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321047802.9U CN220089657U (en) | 2023-05-05 | 2023-05-05 | Automatic replacing device for drill bit of oral cavity drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220089657U true CN220089657U (en) | 2023-11-28 |
Family
ID=88869387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321047802.9U Active CN220089657U (en) | 2023-05-05 | 2023-05-05 | Automatic replacing device for drill bit of oral cavity drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220089657U (en) |
-
2023
- 2023-05-05 CN CN202321047802.9U patent/CN220089657U/en active Active
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