CN210521050U - Mechanical power automatic clutch drill bit device - Google Patents
Mechanical power automatic clutch drill bit device Download PDFInfo
- Publication number
- CN210521050U CN210521050U CN201920975564.5U CN201920975564U CN210521050U CN 210521050 U CN210521050 U CN 210521050U CN 201920975564 U CN201920975564 U CN 201920975564U CN 210521050 U CN210521050 U CN 210521050U
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- China
- Prior art keywords
- sleeve
- drill bit
- sliding core
- drill
- outer lock
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- Expired - Fee Related
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 210000003625 skull Anatomy 0.000 abstract description 17
- 238000005553 drilling Methods 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 5
- 210000005013 brain tissue Anatomy 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The embodiment of the utility model discloses mechanical type power automatic clutch drill bit device, include: the pistol drill connecting sleeve is fixedly connected to the shell of the pistol drill; the outer lock sleeve is in threaded connection with the port of the pistol drill connecting sleeve, which is far away from the pistol drill; the rotary head is fixedly connected to the rotary part of the pistol drill; the sliding core is arranged between the outer lock sleeve and the rotating head, a return spring for the reciprocating displacement of the sliding core between the outer lock sleeve and the rotating head is arranged between the rotating head and the sliding core, and the sliding core forms a clamping relation with the outer lock sleeve and the rotating head respectively; one end of the drill bit is fixed on the sliding core, and the other end of the drill bit extends out of the pistol drill connecting sleeve along the sleeve hole of the outer lock sleeve. The utility model discloses at the skull in-process of punching, when boring through the skull pressure change in the twinkling of an eye, rely on reset spring's elasticity to make slip core and rotating head separation to be connected with outer lock sleeve, thereby stop the drill bit rotation at once, protect the brain tissue, reliability and security when improving the skull and drilling.
Description
Technical Field
The embodiment of the utility model provides a relate to medical drilling technical field, concretely relates to mechanical type power automatic clutch drill bit device.
Background
The existing skull drilling technology is that an electric hand drill is directly added with an automatic separation drill chuck, the elasticity of a spring is mainly used for changing during punching, a drill bit rotates to work to open a skull when the spring is stressed, the stress of the spring is changed after the skull is opened, the drill bit is separated from the drill chuck, and therefore the rotation of the drill bit is stopped. However, in this way, if the drill bit is not stopped in time, it is easy to injure the brain tissue.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a mechanical type power automatic clutch drill bit device to solve among the prior art and adopt electric hand drill to get through behind the skull, the problem that the drill bit can not in time stop.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses an in the first aspect, a mechanical type power automatic clutch drill bit device installs on the pistol drill, drill bit device includes:
the gun drill connecting sleeve is fixedly connected to a shell of the gun drill, and a rotating part of the gun drill is arranged inside the gun drill connecting sleeve;
the outer lock sleeve is in threaded connection with the port, far away from the pistol drill, of the pistol drill connecting sleeve;
the rotary head is fixedly connected to a rotary component of the pistol drill;
the sliding core is arranged between the outer lock sleeve and the rotating head, a first clamping block is integrally formed on the end face, close to the outer lock sleeve, of the sliding core, a first clamping groove for the first clamping block to be embedded is formed in the end face, close to the sliding core, of the outer lock sleeve, a second clamping block is integrally formed on the end face, close to the rotating head, of the sliding core, a second clamping groove for the second clamping block to be embedded is formed in the end face, close to the sliding core, of the rotating head, and a reset spring for the sliding core to perform reciprocating displacement between the outer lock sleeve and the rotating head is arranged between the rotating head and the sliding core;
and one end of the drill bit is fixed on the sliding core, and the other end of the drill bit extends out of the pistol drill connecting sleeve along the sleeve hole of the outer lock sleeve.
Furthermore, an assembly groove is formed in the end face, close to the sliding core, of the rotating head, one end of the sliding core is arranged in the assembly groove, the other end of the sliding core is arranged on the outer side of the rotating head and used for contacting with the outer lock sleeve, and the second clamping groove is formed in the groove bottom of the assembly groove.
Furthermore, a groove is formed in the middle of the bottom of the assembling groove, the reset spring is arranged in the groove, the second clamping groove is formed in the outer edge of the groove opening of the groove, and one end, close to the sliding core, of the reset spring extends out of the groove in a non-stressed state.
Furthermore, the second clamping grooves are provided with a plurality of second clamping grooves which are distributed along the edge of the notch of the groove, and the sliding core is provided with a plurality of second clamping blocks corresponding to the second clamping grooves.
Furthermore, an inner hole for embedding the end part of the drill bit is formed in the middle of the sliding core along the axial direction, an embedding hole communicated to the inner hole is formed in the outer wall of the sliding core, and a magnet used for adsorbing and fixing the drill bit is embedded in the embedding hole.
Furthermore, the section of the inner hole of the sliding core is of an oval structure, and the section of a part of the drill bit arranged in the inner hole is of an oval structure matched with the inner hole.
Furthermore, a positioning sleeve is in threaded connection with one end, far away from the pistol drill, of the rotating head, one end, far away from the rotating head, of the positioning sleeve is in contact with the inner end face of the outer lock sleeve, so that a sleeve hole of the positioning sleeve forms a displacement channel of the sliding core, and a gap is formed between the inner wall of the positioning sleeve and the outer wall of the sliding core.
Furthermore, a first guide sleeve is embedded in a gap between the positioning sleeve and the sliding core, and the first guide sleeve is fixedly connected to the inner wall of the positioning sleeve hole.
Furthermore, a second guide sleeve is embedded between the outer lock sleeve and the drill bit and fixedly connected to the inner wall of the outer lock sleeve hole.
The embodiment of the utility model provides a have following advantage: the outer lock sleeve is in threaded connection with the pistol drill connecting sleeve by arranging the components such as the outer lock sleeve, the pistol drill connecting sleeve, the sliding core, the rotating head, the drill bit and the like, the pistol drill connecting sleeve is fixed on the pistol drill shell and is enabled not to rotate along with the pistol drill, the rotating head is fixedly connected on the rotating component of the pistol drill and is enabled to rotate along with the pistol drill, the sliding core fixed with the drill bit is arranged between the outer lock sleeve and the rotating head, the resetting spring is utilized to enable the sliding core to reciprocate and displace between the outer lock sleeve and the rotating head when the drill bit device is subjected to external pressure, and the automatic clutch of the drill bit is realized through the corresponding clamping relation between the outer lock sleeve and the sliding core as well as between the rotating head and the sliding core, so that in the process of punching skull, when the instantaneous pressure of drilling and passing skull changes, the sliding core is separated from the rotating head by the elasticity of the resetting spring and is connected with the outer lock, thereby stopping the drill bit from rotating immediately, protecting brain tissues and improving the reliability and safety of the skull during drilling.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of a mechanical power automatic clutch drill device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a front end of a sliding core of a mechanical power automatic clutch drill device according to an embodiment of the present invention;
fig. 3 is a schematic view of an external lock sleeve structure of a mechanical power automatic clutch drill bit device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rear end of a sliding core of a mechanical power automatic clutch drill device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a rotary head of a mechanical power automatic clutch drill device according to an embodiment of the present invention.
In the figure: 1. a pistol drill connecting sleeve; 2. an outer lock sleeve; 21. a first card slot; 3. rotating the head; 31. a second card slot; 32. a return spring; 33. assembling a groove; 331. a groove; 4. a sliding core; 41. a first clamping block; 42. a second fixture block; 43. an inner bore; 44. an insertion hole; 5. a drill bit; 6. a positioning sleeve; 7. a first guide sleeve; 8. and a second guide sleeve.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the embodiment of the utility model provides an automatic separation and reunion drill bit device of mechanical type power installs on the pistol drill, including pistol drill adapter sleeve 1, outer lock sleeve 2, rotating head 3, slip core 4 and drill bit 5, specifically set up as follows:
the pistol drill connecting sleeve 1 is fixed on the shell of the pistol drill through a jackscrew, wherein the rotating part of the pistol drill is arranged in the pistol drill connecting sleeve 1, and the inner wall of the pistol drill connecting sleeve 1 keeps a certain interval with the rotating part of the pistol drill, so that the pistol drill connecting sleeve 1 can not rotate along with the rotating part of the pistol drill.
The rotary head 3 is fixedly connected to a rotary member of the pistol drill and can rotate together with the rotary member of the pistol drill. Arranging a sliding core 4 between the outer lock sleeve 2 and the rotating head 3, wherein a first clamping block 41 (refer to fig. 2 and 3) is integrally formed on the end surface of the sliding core 4 close to the outer lock sleeve 2, and a first clamping groove 21 for embedding the first clamping block 41 is formed on the end surface of the outer lock sleeve 2 close to the sliding core 4; a second fixture block 42 (refer to fig. 4 and 5) is integrally formed on the end surface of the sliding core 4 close to the rotating head 3, and a second clamping groove 31 for the second fixture block 42 to be embedded is formed on the end surface of the rotating head 3 close to the sliding core 4, wherein a return spring 32 for the sliding core 4 to reciprocate between the outer lock sleeve 2 and the rotating head 3 is arranged between the rotating head 3 and the sliding core 4, specifically, an assembly groove 33 is formed on the end surface of the rotating head 3 close to the sliding core 4, such that one end of the sliding core 4 is disposed in the assembly groove 33, the other end is disposed outside the rotating head 3 for contacting the outer lock sleeve 2, and a positioning sleeve 6 is threadedly connected to one end of the rotating head 3 far from the pistol drill, wherein one end of the positioning sleeve 6 far from the rotating head 3 contacts on the inner end surface of the outer lock sleeve 2, such that the sleeve hole of the positioning sleeve 6 forms a displacement channel of the sliding core 4, and a gap is formed between the inner wall of the positioning sleeve, by means of the positioning sleeve 6, the sliding core 4 can only move along a displacement channel in the positioning sleeve 6, and the situation of dislocation during displacement of the sliding core 4 is avoided. Preferably, a first guide sleeve 7 is further embedded in a gap between the positioning sleeve 6 and the sliding core 4, and the first guide sleeve 7 is fixedly connected to the inner wall of a sleeve hole of the positioning sleeve 6, so that the sliding core 4 is prevented from being directly contacted with the positioning sleeve 6 to cause abrasion. The first guide sleeve 7 is made of wear-resistant engineering plastics with low friction coefficient, and the rotation of the sliding core 4 is not influenced by the arrangement of the first guide sleeve 7.
As described above, referring to fig. 1 and 5, in order to avoid the swing of the return spring 32, the return spring 32 is limited on the rotary head 3, specifically, a groove 331 is formed in the middle of the bottom of the assembly groove 33, the second locking groove 31 is formed in the outer edge of the notch of the groove 331, and the return spring 32 is disposed in the groove 331, so that one end of the return spring 32, which is close to the sliding core 4, extends out of the groove 331 in an unstressed state. Utilize reset spring 4, when making the drill bit device receive external pressure, slip core 4 can be between outer lock sleeve 2 and rotating head 3 reciprocating displacement to through the joint relation that corresponds between outer lock sleeve 2 and slip core 4, between rotating head 3 and the slip core 4, realize the automatic separation and reunion of drill bit. Preferably, the second locking groove 31 is provided in plurality, and the plurality of second locking grooves 31 are distributed along the edge of the notch 331, and the sliding core 4 is provided with a number of second locking blocks 42 corresponding to the number of second locking grooves 31.
One end of the drill bit 5 is fixed on the sliding core 4, and the other end of the drill bit extends out of the pistol drill connecting sleeve 1 along the sleeve hole of the outer lock sleeve 2. Referring to fig. 1 and 2, specifically, an inner hole 43 for embedding the end of the drill bit 5 is formed in the middle of the sliding core 4 along the axial direction, an embedding hole 44 communicating with the inner hole 43 is formed in the outer wall of the sliding core 4, and a magnet for adsorbing and fixing the drill bit 5 is embedded in the embedding hole 44, so that the embedding end of the drill bit 5 is fixed in the inner hole 43 of the sliding core 4 through the magnet. Wherein, the hole 43 cross-section of slide core 4 is oval structure, and the tip cross-section that drill bit 5 arranged in hole 43 is oval structure with hole 43 complex, and when slide core 4 rotated of being convenient for, under the spacing of hole 43, can drive drill bit 5 and rotate simultaneously.
The embodiment of the utility model provides a through setting up outer lock sleeve 2, pistol drill adapter sleeve 1, slide core 4, rotating head 3, subassembly such as drill bit 5, with outer lock sleeve 2 and pistol drill adapter sleeve 1 threaded connection, and fix pistol adapter sleeve 1 on the pistol drill shell, make it not rotate along with the pistol drill, with rotating head 3 rigid coupling on the rotary part of pistol drill, make it can follow the pistol drill and rotate along with, with slide core 4 that is fixed with drill bit 5 set up between outer lock sleeve 2 and rotating head 3, utilize reset spring 32, when making the drill bit device receive external pressure, slide core 4 can be between outer lock sleeve 2 and rotating head 3 reciprocating displacement, and through between outer lock sleeve 2 and slide core 4, the corresponding joint relation between rotating head 3 and the slide core 4, realize the automatic separation and reunion of drill bit, thereby in the skull punching process, when drilling through skull pressure change, the sliding core 4 is separated from the rotary head 3 by the elastic force of the return spring 32 and is connected with the outer lock sleeve 2, so that the drill bit 5 is stopped to rotate immediately, brain tissues are protected, and the reliability and safety of skull drilling are improved.
The specific operation is as follows: when drilling skull bone, the skull bone applies reverse pressure to the drill bit 5, so that the second clamping block 42 of the sliding core 4 is embedded in the second clamping groove 31 of the rotary head 3, and the rotary head 31 rotates to drive the drill bit 5 (including the sliding core 4 and the drill bit 5, the positioning sleeve 6 and the first guide sleeve 7) to rotate together.
When the skull is drilled through, the back pressure of the skull on the drill bit 5 is lost, the sliding core 4 is pushed under the reset action of the reset spring 32, the rotating head 3 is separated from the sliding core 4, and after the reset spring 32 is completely restored, the first clamping block 41 of the sliding core 4 is just embedded into the first clamping groove 21 of the outer lock sleeve 2, and at the moment, the drill bit 5 and the sliding core 4 are immediately stopped rotating.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A mechanical power automatic clutch drill bit device is installed on a pistol drill and is characterized in that the drill bit device comprises:
the gun drill connecting sleeve (1) is fixedly connected to the shell of the gun drill, and a rotating part of the gun drill is arranged in the gun drill connecting sleeve (1);
the outer lock sleeve (2) is in threaded connection with the port, far away from the pistol drill, of the pistol drill connecting sleeve (1);
the rotary head (3), the rotary head (3) is fixedly connected on the rotating component of the pistol drill;
the sliding core (4) is arranged between the outer lock sleeve (2) and the rotating head (3), a first clamping block (41) is integrally formed on the end face, close to the outer lock sleeve (2), of the sliding core (4), a first clamping groove (21) for embedding the first clamping block (41) is formed in the end face, close to the sliding core (4), of the outer lock sleeve (2), a second clamping block (42) is integrally formed on the end face, close to the rotating head (3), of the sliding core (4), a second clamping groove (31) for embedding the second clamping block (42) is formed in the end face, close to the sliding core (4), of the rotating head (3), and a reset spring (32) for enabling the sliding core (4) to perform reciprocating displacement between the outer lock sleeve (2) and the rotating head (3) is arranged between the rotating head (3) and the sliding core (4);
one end of the drill bit (5) is fixed on the sliding core (4), and the other end of the drill bit (5) extends out of the pistol drill connecting sleeve (1) along the sleeve hole of the outer lock sleeve (2).
2. The mechanically-powered automatic clutch drill bit assembly of claim 1, wherein: the rotating head (3) has been seted up on being close to the terminal surface of slip core (4) and has been assembled groove (33), in the assembly groove (33) was arranged in to the one end of slip core (4), the outside that rotating head (3) were arranged in to the other end was used for contacting outer lock sleeve (2), wherein, second draw-in groove (31) are seted up on the tank bottom of assembly groove (33).
3. The mechanically-powered automatic clutch drill bit assembly of claim 2, wherein: the middle part of the bottom of the assembling groove (33) is provided with a groove (331), the reset spring (32) is arranged in the groove (331), the second clamping groove (31) is arranged on the outer edge of the groove opening of the groove (331), and one end, close to the sliding core (4), of the reset spring (32) extends out of the groove (331) in a non-stressed state.
4. A mechanically powered automatic clutch drill bit assembly as defined in claim 3 wherein: the second clamping grooves (31) are arranged in a plurality of numbers, the second clamping grooves (31) are distributed along the edge of the notch of the groove (331), and the sliding core (4) is provided with second clamping blocks (42) with the number corresponding to that of the second clamping grooves (31).
5. The mechanically-powered automatic clutch drill bit assembly of claim 1, wherein: the middle part of the sliding core (4) is provided with an inner hole (43) for embedding the end part of the drill bit (5) along the axial direction, an embedding hole (44) communicated into the inner hole (43) is formed in the outer wall of the sliding core (4), and a magnet used for adsorbing and fixing the drill bit (5) is embedded in the embedding hole (44).
6. The mechanically-powered automatic clutch drill bit assembly of claim 5, wherein: the cross-section of the inner hole (43) of the sliding core (4) is of an oval structure, and the cross-section of a part of the drill bit (5) arranged in the inner hole (43) is of an oval structure matched with the inner hole (43).
7. The mechanically-powered automatic clutch drill bit assembly of claim 1, wherein: one end of the rotary head (3) far away from the pistol drill is connected with a positioning sleeve (6) in a threaded mode, one end of the positioning sleeve (6) far away from the rotary head (3) is in contact with the inner end face of the outer lock sleeve (2), so that a sleeve hole of the positioning sleeve (6) forms a displacement channel of the sliding core (4), and a gap is formed between the inner wall of the positioning sleeve (6) and the outer wall of the sliding core (4).
8. The mechanically-powered automatic clutch drill bit assembly of claim 7, wherein: a first guide sleeve (7) is embedded in a gap between the positioning sleeve (6) and the sliding core (4), and the first guide sleeve (7) is fixedly connected to the inner wall of a sleeve hole of the positioning sleeve (6).
9. The mechanically-powered automatic clutch drill bit assembly of claim 1, wherein: and a second guide sleeve (8) is embedded between the outer lock sleeve (2) and the drill bit (5), and the second guide sleeve (8) is fixedly connected to the inner wall of the sleeve hole of the outer lock sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920975564.5U CN210521050U (en) | 2019-06-26 | 2019-06-26 | Mechanical power automatic clutch drill bit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920975564.5U CN210521050U (en) | 2019-06-26 | 2019-06-26 | Mechanical power automatic clutch drill bit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210521050U true CN210521050U (en) | 2020-05-15 |
Family
ID=70595854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920975564.5U Expired - Fee Related CN210521050U (en) | 2019-06-26 | 2019-06-26 | Mechanical power automatic clutch drill bit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210521050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762013B (en) * | 2020-11-04 | 2022-04-21 | 財團法人金屬工業研究發展中心 | Tool for bone implant |
| CN114557747A (en) * | 2022-02-24 | 2022-05-31 | 四川大学华西医院 | An orthopedic drill |
-
2019
- 2019-06-26 CN CN201920975564.5U patent/CN210521050U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762013B (en) * | 2020-11-04 | 2022-04-21 | 財團法人金屬工業研究發展中心 | Tool for bone implant |
| CN114557747A (en) * | 2022-02-24 | 2022-05-31 | 四川大学华西医院 | An orthopedic drill |
| CN114557747B (en) * | 2022-02-24 | 2023-08-08 | 四川大学华西医院 | an orthopedic drill |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |