CN206080623U - Core drill handle assembly - Google Patents
Core drill handle assembly Download PDFInfo
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- CN206080623U CN206080623U CN201620676479.5U CN201620676479U CN206080623U CN 206080623 U CN206080623 U CN 206080623U CN 201620676479 U CN201620676479 U CN 201620676479U CN 206080623 U CN206080623 U CN 206080623U
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- sleeve
- handle assembly
- core drill
- collet
- cylinder
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Abstract
The utility model discloses a core drill handle assembly, set up in the barrel of drive handle tip including drive handle and slope, the interior mode with circumferential direction and axial fixity of barrel is equipped with and drives handle transmission coordination's hollow transmission shaft, the transmission of hollow transmission shaft front end is equipped with the collet, lies in the articulated chuck actuating lever that is equipped with in drive handle front side on the barrel, the chuck actuating lever is used for pressing from both sides tightly through it along axial swinging backward and then drive collet, making things convenient for the doctor to operate, guaranteeing the continuity of operation process, reduce operation time, it is painful to reduce the patient to clamping -force to ke shi needle or bone drill is great, avoids the clamping -force less and lead to the fact and slide, guarantees the high efficiency of operation, and simple structure is compact.
Description
Technical field
The utility model is related to medical instruments field, and in particular to a kind of core drill handle assembly.
Background technology
In bone tissue operation, Jing often will be drilled to bone tissue using Kirschner wire or bone drill and be positioned etc. operates, and faces
Bed doctor reduces operating time to reduce patient suffering, and the drilling to Kirschner wire needs rapidly, and operates facility.Existing skill
In art, generally collet clamping Kirschner wire or bone drill are driven using spring force, under spring force movable tapered sleeve is fixed
Clamping that is motionless and then realizing Kirschner wire or bone drill, collet motion is driven when unclamping Kirschner wire or bone drill by hand pressure pressure handle
Realize that collet loosens, and this mode of operation is not suitable for the operating habit of the doctor in charge, is unfavorable for the coherent of surgical procedure
Property, cause operating time longer, and loosen for the ease of collet so that spring force can not be too big, less big spring force
Kirschner wire or the bone drill unreliable and sliding of clamping are easily caused, are unfavorable for operation technique.
Utility model content
In view of this, the purpose of this utility model is to overcome defect of the prior art, there is provided core drill handle assembly, energy
Enough facilitate doctor to operate, it is ensured that the continuity of surgical procedure, reduce operating time, reduce patient suffering, and to Kirschner wire or
The chucking power of bone drill is larger, it is to avoid chucking power is less and causes sliding, it is ensured that the high efficiency of operation, and simple and compact for structure,
Easy-to-operate.
Core drill handle assembly of the present utility model, including driving handle and be obliquely installed in the cylinder of driving handle end
Body, is provided with to circumferentially rotate and in the way of axial restraint the Hollow Transmission Shafts for coordinating, institute is driven with driving handle in the cylinder
State the transmission of Hollow Transmission Shafts front end and be provided with collet, be hinged positioned at driving handle front side on cylinder and be provided with chuck drive rod, institute
Chuck drive rod is stated for swinging axially rearward by it and then drives collet to clamp.
Further, be coated at Hollow Transmission Shafts rear end and be fixedly installed drive sleeve, be coated at drive sleeve be fixedly installed with
The bevel gear that the clutch end transmission of driving handle coordinates, the drive sleeve is with relative to the adjustable mode of cylinder axial location
Single-degree-of-freedom is rotated and arranged in cylinder.
Further, radially inward projection forms limited step to the cylinder inner circle, and limited step is used to keep out the first rolling
To drive sleeve to front limit, cylinder inner circle rear end screw thread is equipped with the first locking nut to dynamic bearing, and the first locking nut is used
Drive sleeve is compressed forward in the second rolling bearing is kept out, between the limited step and the first rolling bearing or the second rolling bearing
The pad for adjusting drive sleeve axial location is provided between the first locking nut, is nibbled with adjusting bevel gear in drive sleeve
Close.
Further, the Hollow Transmission Shafts rear end is cylindrical for flat structure, the flat structure and drive sleeve form-fit
And be driven, the flat structure rear end is axially rearwardly extending to form the circular mounting set for passing drive sleeve, one second locking screw
Box thread is coated at circular mounting set and axial locking is in drive sleeve rear end.
Further, the collet is three leaf collets, is coated at three leaf collets and is provided with and three leaves elasticity
The movable tapered sleeve of chuck taper fit, the chuck drive rod is slided axially forward by driving activity tapered sleeve and realizes three leaf bullets
Property chuck clamp.
Further, also include being driven the pushing sleeve for realizing axially reciprocating, axial restraint to be simultaneously coated at by chuck drive rod
Movable tapered sleeve is provided with the 3rd rolling bearing, the pushing sleeve by promote the 3rd rolling bearing forward so that driving activity tapered sleeve to
Front slide.
Further, it is coated at movable tapered sleeve and is provided with helical spring for providing movable tapered sleeve pretightning force backward.
Further, the collet is integrally formed with Hollow Transmission Shafts.
Further, the bevel gear is fixed on drive sleeve by alignment pin.
Further, the pushing sleeve is cylindrical is provided with cannelure, and the upper end of the chuck drive rod forms embedded cannelure
Actuating arm, the actuating arm promotes pushing sleeve axial reciprocating to slide by the leverage that chuck drive rod and cylinder are formed.
The beneficial effects of the utility model are：A kind of core drill handle assembly disclosed in the utility model, by by chuck
Drive rod is arranged at driving handle front side so that doctor is in operation, and singlehanded hold with a firm grip simultaneously chuck drive rod and driving handle are real
Existing collet is clamped, and is unclamped chuck drive rod and realized that collet loosens, and facilitates doctor to operate, it is ensured that the company of surgical procedure
Coherence, reduces operating time, reduces patient suffering, and larger to the chucking power of Kirschner wire or bone drill, it is to avoid chucking power is less
And cause sliding, it is ensured that and the high efficiency of operation, and it is simple and compact for structure, and rear end exposes to the Kirschner wire of cylinder and is difficult and handle
Assembly produces interference, and coaxial stabilization is good, it is ensured that safe operation, convenience.
Description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the mounting structure schematic diagram of drive sleeve in the utility model；
Fig. 4 is the structural representation of Hollow Transmission Shafts and drive sleeve in the utility model；
Fig. 5 is K-K sectional views in Fig. 3.
Specific embodiment
Fig. 1 is structural representation of the present utility model, and Fig. 2 is enlarged drawing at A in Fig. 1, and Fig. 3 is to be driven in the utility model
The mounting structure schematic diagram of set, Fig. 4 is the structural representation of Hollow Transmission Shafts and drive sleeve in the utility model, and Fig. 5 is in Fig. 3
K-K sectional views, as illustrated, the core drill handle assembly in the present embodiment, including driving handle 1 and are obliquely installed in driving hand
The cylinder 2 of the end of handle 1, is provided with to circumferentially rotate and in the way of axial restraint and the transmission of driving handle 1 coordinates in the cylinder 2
Hollow Transmission Shafts 3, the front end of the Hollow Transmission Shafts 3 transmission is provided with collet 4, the front side of driving handle 1 is located on cylinder 2 and is hinged
Chuck drive rod 5 is provided with, the chuck drive rod 5 is used to be swung axially rearward by it and then drives collet 4 to clamp；
Circumferential and axial represent the circumferencial direction and axis direction of cylinder 2, along the axial drilling direction of Hollow Transmission Shafts 3 for forward；
Reducing gear and power output shaft 6 are provided with the driving handle 1, power output shaft 6 is used to drive 3 turns of Hollow Transmission Shafts
Dynamic, driving handle 1 belongs to prior art, will not be described here, and by the way that chuck drive rod 5 is arranged at into the front side of driving handle 1
And make collet 4 clamp Kirschner wire or bone drill by swing backward operation, certainly, chuck drive rod 5 can be by all existing
Clamping driving structure drive collet 4 clamp, such as wedge type block drive or tapered sleeve drive etc., can realize the utility model
Goal of the invention；By the way that chuck drive rod 5 is arranged at into the front side of driving handle 1 simultaneously so that doctor is singlehanded to hold with a firm grip in operation
Chuck drive rod 5 and driving handle 1, realize that collet 4 is clamped, and unclamp chuck drive rod 5 and realize that collet 4 loosens,
Facilitate doctor to operate, it is ensured that the continuity of surgical procedure, reduce operating time, reduce patient suffering, and to Kirschner wire or bone
The chucking power of brill is larger, it is to avoid causes sliding because chucking power is less when processing bone tissue drilling in Kirschner wire or bone drill, protects
The high efficiency of card operation, and it is simple and compact for structure, and rear end exposes to the Kirschner wire of cylinder 2 and is difficult to be done with handle assembly generation
Relate to, and coaxial stabilization is good, it is ensured that safe operation, convenience；Certainly, the shape of chuck drive rod 5 can be fitted according to convenient holding
Shape is arranged.
In the present embodiment, it is coated at the rear end of Hollow Transmission Shafts 3 and is fixedly installed drive sleeve 7, is coated at the fixation of drive sleeve 7 and sets
The bevel gear 8 coordinated with the clutch end transmission of driving handle 1 is equipped with, the drive sleeve 7 is with relative to the axial location of cylinder 2
Adjustable mode single-degree-of-freedom is rotated and arranged in cylinder 2；The mode being fixedly installed adopts fixation side of the prior art
Formula, such as clamping, welding etc., will not be described here；The axial location of drive sleeve 7 is adjusted can be by realizing this in prior art
All governor motions of improving eyesight, as round thread inner sleeve being provided for axially keeping out and spacing drive sleeve 7 in cylinder
Interstage sleeve (is arranged at the front end of drive sleeve 7 and coordinates to drive sleeve 7 axially with the first locking nut 12 for being arranged at the rear end of drive sleeve 7
It is spacing), move axially its own and promote drive sleeve 7 to move axially by rotating interstage sleeve, further realize passing after stopping the rotation
7 axial locations of dynamic set are fixed；Ensure clutch end (another bevel gear 8a) accuracy of mesh of bevel gear 8 and driving handle 1 compared with
Height, beneficial to powerdriven stability and high efficiency.
In the present embodiment, radially inward projection forms limited step 10 to the inner circle of the cylinder 2, and limited step 10 is used to support
The first rolling bearing 9 is kept off to drive sleeve 7 to front limit, the inner circle rear end screw thread of cylinder 2 is equipped with the first locking nut 12, the
One locking nut 12 compresses forward drive sleeve 7, the axis of rolling of the limited step 10 and first for keeping out the second rolling bearing 11
Hold between 9 or be provided between the second rolling bearing 11 and the first locking nut 12 pad for adjusting the axial location of drive sleeve 7
Piece 13；The drive sleeve 7 is cylindrical to be provided with for the limited step 9a to the first rolling bearing 9 sports limiting backward, the second rolling
The front end of dynamic bearing 11 presses on the rear end face of bevel gear 8, and pad 13 is arranged at limited step 10 and first and is rolled by the present embodiment
Between bearing 9, the rolling bearing 11 of first rolling bearing 9 and second can be thrust bearing, it is ensured that drive sleeve 7 is when rotating
Do not affected by the locking nut 12 of cylinder 2 or first, it is to avoid dynamic friction is lost, while it is steady to ensure that Hollow Transmission Shafts 3 are rotated
It is qualitative, the axial location of drive sleeve 7 is adjusted by pad 13, pad 13 can be the different multi-disc of the identical multi-disc of thickness or thickness, with
Cone governor gear meshing shape condition, it is ensured that the precision of bevel gear engagement, reduces noise, improves transmission efficiency, and simple structure, adjusts
Section is convenient and stable.
In the present embodiment, the rear end of the Hollow Transmission Shafts 3 is cylindrical for flat structure 14, the flat structure 14 and drive sleeve
7 form-fits are simultaneously driven, and the rear end of flat structure 14 is axially rearwardly extending to form the circular mounting set for passing drive sleeve 7
15, the thread jacket of the second locking nut 16 is in circular mounting set 15 and axial locking is in the rear end of drive sleeve 7；In the rear end of drive sleeve 7
Circle projects radially inwards two parallel surfaces to be formed with the form-fit of flat structure 14, by the transmission of flat structure 14 and the
The axial locking Hollow Transmission Shafts 3 of two locking nut 16, it is ensured that driving torque is big, is convenient to mount and dismount.
In the present embodiment, the collet 4 is three leaf collets, is coated at three leaf collets and is provided with and three leaves
The movable tapered sleeve 17 of collet taper fit, the chuck drive rod 5 is slided axially forward by driving activity tapered sleeve 17
Realize that three leaf collets 4 are clamped；The front end inner circle of the movable tapered sleeve 17 is formed fits with the front end external conicity of three leaf collet 4
The conical surface that shape coordinates, is moved axially forwards by movable tapered sleeve 17 and then clamps three leaf collets 4 of axial restraint, is clamped
Stablize and clamping center is good with the alignment of Hollow Transmission Shafts 3；The three leaves collet 4 is prior art, and here is no longer gone to live in the household of one's in-laws on getting married
State.
In the present embodiment, also include being driven the pushing sleeve 18 for realizing axially reciprocating by chuck drive rod 5, axial restraint is simultaneously
It is coated at movable tapered sleeve 17 and is provided with the 3rd rolling bearing 19, the pushing sleeve 18 by promotes the 3rd rolling bearing 19 further forward
The forward slip of driving activity tapered sleeve 17, the 3rd rolling bearing 19 is at least spacing axially forward to be arranged at movable tapered sleeve 17, described
Movable tapered sleeve 17 is cylindrical radially to be convexed to form for the limited step 20 spacing axially forward to the 3rd rolling bearing 19,
3rd rolling bearing 19 can be thrust bearing, it is ensured that movable tapered sleeve 17 circumferentially relatively rotates cooperation with pushing sleeve 18, and then avoids
Movable tapered sleeve 17 is rotated when chuck drive rod 5 drives the direct axial compression activity tapered sleeve 17 of pushing sleeve 18 causes to interfere.
In the present embodiment, it is coated at movable tapered sleeve 17 and is provided with spiral bullet for providing movable tapered sleeve 17 pretightning force backward
Spring 21；As illustrated, the front end of helical spring 21 presses on a spring shim 22 arranged relative to the axial restraint of cylinder 2, rear end
Press on by the cylindrical limited step 23 for radially convexing to form of movable tapered sleeve 17, it is ensured that when unclamping chuck drive rod 5, it is living
Mantle set 17 is moved backward in the case where helical spring 21 restores and drives, it is ensured that collet 4 loosens automatically.
In the present embodiment, the collet 4 is integrally formed with Hollow Transmission Shafts 3；Ensure collet 4 and hollow transmission
The bonding strength of axle 3 is larger, and is easily installed, compact conformation.
In the present embodiment, the bevel gear 8 is fixed on drive sleeve 7 by alignment pin 24；The alignment pin 24 is along drive sleeve 7
Cylindrical tangential direction is installed also cross drive sleeve 7 and the fixing-stable of bevel gear 8 and then real drive sleeve 7 and bevel gear 8
It is convenient, and fixed structure intensity is big.
In the present embodiment, the pushing sleeve 18 is cylindrical to be provided with cannelure 25, and the upper end of the chuck drive rod 5 forms embedded
The actuating arm 26 of cannelure 25, the actuating arm 26 promotes pushing sleeve 18 by the leverage that chuck drive rod 5 and cylinder 2 are formed
Axial reciprocating slides；The embedded end of the actuating arm 26 can be circular arc, it is ensured that pushing sleeve 18 drive it is smooth, by chuck drive
Bar 5 drives pushing sleeve 18 with the leverage that cylinder 2 is formed, it is ensured that the motive force of pushing sleeve 18 is larger, it is ensured that the clamping of collet 4
Power is larger.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from the objective and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (10)
1. a kind of core drill handle assembly, it is characterised in that：Including driving handle and being obliquely installed in the cylinder of driving handle end
Body, is provided with to circumferentially rotate and in the way of axial restraint the Hollow Transmission Shafts for coordinating, institute is driven with driving handle in the cylinder
State the transmission of Hollow Transmission Shafts front end and be provided with collet, be hinged positioned at driving handle front side on cylinder and be provided with chuck drive rod, institute
Chuck drive rod is stated for swinging axially rearward and then drives collet to clamp.
2. core drill handle assembly according to claim 1, it is characterised in that：It is coated at the fixation of Hollow Transmission Shafts rear end to set
Drive sleeve is equipped with, drive sleeve is coated at and is fixedly installed the bevel gear coordinated with the clutch end transmission of driving handle, it is described
Drive sleeve is arranged in cylinder with rotating relative to the adjustable mode single-degree-of-freedom of cylinder axial location.
3. core drill handle assembly according to claim 2, it is characterised in that：Cylinder inner circle projection radially inward
Limited step is formed, limited step is used to keep out the first rolling bearing to drive sleeve to front limit, and cylinder inner circle rear end screw thread is matched somebody with somebody
Conjunction is provided with the first locking nut, and the first locking nut compresses forward drive sleeve for keeping out the second rolling bearing, described spacing
It is provided between step and the first rolling bearing or between the second rolling bearing and the first locking nut for adjusting drive sleeve axle
To the pad of position.
4. core drill handle assembly according to claim 3, it is characterised in that：The Hollow Transmission Shafts rear end is cylindrical for flat
Square structure, the flat structure is with drive sleeve form-fit and is driven, the axially rearwardly extending formation in the flat structure rear end
The circular mounting set of drive sleeve is passed, one second locking nut thread jacket is in circular mounting set and axial locking is after drive sleeve
End.
5. core drill handle assembly according to claim 1, it is characterised in that：The collet is three leaf elastic clips
Head, is coated at three leaf collets and is provided with movable tapered sleeve with three leaf collet taper fits, and the chuck drive rod is led to
The activity tapered sleeve of overdriving slides realize that three leaf collets are clamped axially forward.
6. core drill handle assembly according to claim 5, it is characterised in that：Also include being driven by chuck drive rod and realize
The pushing sleeve of axially reciprocating, axial restraint is simultaneously coated at movable tapered sleeve and is provided with the 3rd rolling bearing, the pushing sleeve by
The 3rd rolling bearing of front promotion and then driving activity tapered sleeve forward slip.
7. core drill handle assembly according to claim 5, it is characterised in that：It is coated at movable tapered sleeve to be provided with for work
Mantle set provides the helical spring of pretightning force backward.
8. core drill handle assembly according to claim 1, it is characterised in that：The collet and Hollow Transmission Shafts one
It is body formed.
9. core drill handle assembly according to claim 2, it is characterised in that：The bevel gear is fixed on by alignment pin
Drive sleeve.
10. core drill handle assembly according to claim 6, it is characterised in that：The pushing sleeve is cylindrical to be provided with cannelure,
The upper end of the chuck drive rod forms the actuating arm of embedded cannelure, and the actuating arm is formed by chuck drive rod with cylinder
Leverage promote pushing sleeve axial reciprocating to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676479.5U CN206080623U (en) | 2016-06-30 | 2016-06-30 | Core drill handle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676479.5U CN206080623U (en) | 2016-06-30 | 2016-06-30 | Core drill handle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206080623U true CN206080623U (en) | 2017-04-12 |
Family
ID=58465585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620676479.5U Active CN206080623U (en) | 2016-06-30 | 2016-06-30 | Core drill handle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206080623U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171877A (en) * | 2018-10-24 | 2019-01-11 | 中国人民解放军第八十九医院 | A kind of perform the operation drills the hollow boring device of bone column with orientation |
| CN109350215A (en) * | 2018-11-28 | 2019-02-19 | 苏州益诺斯医疗科技有限公司 | A kind of miniature Kirschner wire mobile phone |
| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN113995468A (en) * | 2022-01-04 | 2022-02-01 | 极限人工智能有限公司 | Clamping mechanism, bone drill device and surgical robot |
-
2016
- 2016-06-30 CN CN201620676479.5U patent/CN206080623U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110742673A (en) * | 2018-07-24 | 2020-02-04 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN110742673B (en) * | 2018-07-24 | 2021-03-16 | 上海库欣医疗科技有限公司 | Electric bone drill |
| CN109171877A (en) * | 2018-10-24 | 2019-01-11 | 中国人民解放军第八十九医院 | A kind of perform the operation drills the hollow boring device of bone column with orientation |
| CN109171877B (en) * | 2018-10-24 | 2023-11-17 | 中国人民解放军第八十九医院 | Device for directionally drilling bone column hollow drill for operation |
| CN109350215A (en) * | 2018-11-28 | 2019-02-19 | 苏州益诺斯医疗科技有限公司 | A kind of miniature Kirschner wire mobile phone |
| CN113995468A (en) * | 2022-01-04 | 2022-02-01 | 极限人工智能有限公司 | Clamping mechanism, bone drill device and surgical robot |
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