CN209007355U - The power transfer mechanism and grinding knife tool of grinding knife tool - Google Patents
The power transfer mechanism and grinding knife tool of grinding knife tool Download PDFInfo
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- CN209007355U CN209007355U CN201821762544.1U CN201821762544U CN209007355U CN 209007355 U CN209007355 U CN 209007355U CN 201821762544 U CN201821762544 U CN 201821762544U CN 209007355 U CN209007355 U CN 209007355U
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Abstract
The utility model provides a kind of power transfer mechanism of grinding knife tool, including mounting base, power input shaft, input gear, power output shaft, output gear, rotate forward geared parts, counter gear component and intermediate gear, it rotates forward geared parts and counter gear component includes first gear and second connecting portion, second connecting portion forms band tooth section and evacuation section in the circumferential, the input tooth is engaged with the first gear and intermediate gear for rotating forward geared parts, and intermediate gear is engaged with the first gear of counter gear component；When the band tooth section for rotating forward geared parts is engaged with output gear, the evacuation section of counter gear component is corresponding with output gear, and power output shaft rotates forward；When the band tooth section of counter gear component is engaged with output gear, the evacuation section for rotating forward geared parts is corresponding with output gear, power output shaft reversion；It is the circumference reciprocally swinging within the scope of certain angle by continuous rotation conversion of motion to change the circle rotation motion mode of traditional cutter head.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to a kind of power transfer mechanism of grinding knife tool.
Background technique
In surgical operation, generallys use medical grinding knife tool and the intracorporal bone tissue of people or soft tissue are ground, it is existing
There is grinding knife tool that power handle driving bistrique/cutter head high speed rotation is generally used to be ground.Since bistrique/cutter head does 360 °
, there is the hidden danger for enwinding surrounding soft tissue, under the circumference of the high-speed rotation, soft tissue in the course of surgery in circle rotation movement
Once being wound, it will fallen by strand；It is especially higher to the degree of injury of the soft tissues such as blood vessel, nerve, bistrique/cutter head cutting edge
Once it is very big to the harm of patient to enwind nerve.
Utility model content
In view of the above deficiencies of the prior art, the purpose of this utility model is to provide a kind of power of grinding knife tool
Transmission mechanism changes the motion mode of cutter head, prevents cutter head from winding soft tissue.
In order to achieve the above objects and other related objects, technical solutions of the utility model are as follows:
A kind of power transfer mechanism of grinding knife tool, for the power of power handle to be transferred to cutter head, including mounting base
And the power input shaft for accessing power in mounting base and the power output shaft for connecting with cutter head are set, it is described
It is provided with input gear on power input shaft, is provided with output gear on the power output shaft；The power transfer mechanism is also
Include including rotating forward geared parts, counter gear component and intermediate gear, the rotating forward geared parts and counter gear component
For receiving the first gear of power and corresponding to the second connecting portion of output gear, the second connecting portion is formed in the circumferential
Engaged with output gear with tooth section and the evacuation section being detached from output gear, input gear and described rotate forward the of geared parts
One gear and intermediate gear often engage, and the intermediate gear is often engaged with the first gear of counter gear component；The power is defeated
Enter the unidirectional continuous rotation of axis, while driving and rotating forward geared parts rotating forward and the reversion of counter gear component, when rotating forward geared parts
Band tooth section when being engaged with output gear, the evacuation section of the counter gear component is corresponding with output gear, and power output shaft is just
To rotation；When the band tooth section of counter gear component is engaged with output gear, the evacuation section for rotating forward geared parts and output
Gear mesh is answered, and power output shaft rotates backward.
Using the above structure, during power input shaft unidirectional continuous rotation, geared parts is rotated forward and rotates forward, invert tooth
Wheel component reversion, when rotating forward output, the band tooth section and output gear of counter gear component are detached from, evacuation section and output gear pair
It answers, i.e. counter gear component and output gear does not generate transmission；Similarly, when inverting output, the band tooth section of geared parts is rotated forward
It is detached from output gear, evacuation section is corresponding with output gear, i.e., rotating forward geared parts and output gear do not generate transmission；Rotate forward tooth
It acts on when wheel component and counter gear component difference with output gear, alternately exports.Change the circle rotation movement of traditional cutter head
The continuous rotation conversion of motion of power input shaft is the circumference reciprocally swinging within the scope of power output shaft certain angle by mode,
When cutter head and after power output axis connection, cutter head is around power output shaft center line circumferentially reciprocally swinging, so that cutter head be avoided to twine
Put soft tissue on the spot；And soft tissue has certain elasticity, when cutter head does reciprocally swinging, can avoid cutter head, reduce to soft tissue
Injury.
Further, it is provided in the mounting base and is respectively used to installation rotating forward geared parts, counter gear component and centre
The gear shaft of gear, the gear shaft are parallel with power input shaft and power output shaft.
Further, the axial line of the axial line of the power input shaft and power output shaft is overlapped.
Further, the number of teeth for rotating forward geared parts, counter gear component and intermediate gear is configured as, when input tooth
When wheel turns over one week, power output shaft and output gear at least complete primary positive and negative reciprocally swinging.
Further, 1 section or 2 sections or more is circumferentially respectively set along second connecting portion for the band tooth section and evacuation section, when band tooth
It is described to be alternately distributed in the circumferential direction of second connecting portion with tooth section and evacuation section when section and evacuation section are respectively 2 sections or more.
Further, the band tooth section for rotating forward geared parts and counter gear component along respective rotation direction the last one
It is opened up on the tooth of disengaging output gear jagged.
Further, the first gear and second connecting portion are integrally formed or are set in simultaneously two on corresponding teeth wheel shaft
A individual components.
Further, be provided in the mounting base for limit power input shaft axial movement the first position limiting structure and
For limiting the second position limiting structure of power output shaft axial movement.
Further, the power output shaft is interior knife pipe；Or the power output shaft include interior knife pipe and with interior knife
The transmission shaft that pipe is fixedly connected, the transmission shaft are connect with output gear.
The utility model also provides a kind of grinding knife tool, the power transfer mechanism including cutter head and the grinding knife tool,
The power output shaft is connect with the cutter head.
As described above, the beneficial effects of the utility model are: the utility model, in the unidirectional continuous rotation of power input shaft
In the process, rotate forward geared parts rotate forward, counter gear component reversion, when rotate forward output when, counter gear component band tooth section with
Output gear is detached from, and evacuation section is corresponding with output gear, i.e. counter gear component and output gear does not generate transmission；Similarly, when
When reversion output, the band tooth section and output gear for rotating forward geared parts are detached from, and evacuation section is corresponding with output gear, i.e., positive rotating disk
Component and output gear do not generate transmission；It is acted on when rotating forward geared parts and counter gear component difference with output gear, alternately
Output.Continuous rotation conversion of motion is the circumference within the scope of certain angle by the circle rotation motion mode for changing traditional cutter head
Reciprocally swinging, when cutter head and after power output axis connection, cutter head is around power output shaft center line circumferentially reciprocally swinging, to keep away
Exempt from cutter head and enwinds soft tissue；And soft tissue has certain elasticity, when cutter head does reciprocally swinging, can avoid cutter head, reduces
Injury to soft tissue.
Detailed description of the invention
Fig. 1 is the scheme of installation that the utility model power transfer mechanism is applied to grinding knife tool；
Fig. 2 and Fig. 3 is the drive mechanism schematic diagram of power transfer mechanism；
Fig. 4 is the top view of power transfer mechanism gear set；
Fig. 5 is the bottom view of power transfer mechanism gear set；
Fig. 6 is positive the structural schematic diagram of rotating disk component；
Fig. 7 is positive the bottom view of rotating disk component.
Piece mark explanation:
1- mounting base；2- power input shaft；3- power output shaft；4- input gear；5- output gear；6- rotates forward gear part
Part；61- first gear；62a- band tooth section；62b- avoids section；62c- notch；63- first gear axis；7- counter gear component；
71- first gear；72a- band tooth section；72b- avoids section；72c- notch；73- second gear axis；8- intermediate gear；81- third tooth
Wheel shaft；10- transmission shaft；The outer knife pipe of 11-；12- cutter head；13- end cap；The first locating part of 14-；15- position-arresting disk；16- second is limited
Part；17- pressing plate；18- axle sleeve；19- stop collar；20- limit sleeve；21- connection structure.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Front and back position described in this example is front towards one side of patient, deviates from one side of patient when being worked with grinding knife tool
For rear.
Embodiment
As shown in Figures 1 to 5, a kind of power transfer mechanism of grinding knife tool, wherein grinding knife tool includes power handle,
The equal components of cutter head 12 for grinding, the power transfer mechanism of the utility model are used to the power of power handle being transferred to cutter head
12, the power transfer mechanism and power handle direct or indirect connection；Power transfer mechanism includes that mounting base 1 and setting are being pacified
Dress seat 1 on for access power power input shaft 2 and for connect with cutter head 12 to cutter head 12 transmit power power it is defeated
Shaft 3.
Wherein, input gear 4 is provided on the power input shaft 2, input gear 4 and power input shaft 2 rotate synchronously,
Socket or the mode being fixedly connected can be used；Output gear 5 is provided on the power output shaft 3, output gear 5 and power are defeated
Shaft 3 rotates synchronously, the mode that the two can be used socket or be fixedly connected；The power transfer mechanism further includes rotating forward gear part
Part 6, counter gear component 7 and intermediate gear 8, idle pulley of the intermediate gear 8 as counter gear component 7 rotate forward described in this example
With the rotation direction that reversion is to distinguish two geared parts, do not specify it for a certain specific direction.
As shown, the rotating forward geared parts 6 are similar with 7 structure of counter gear component, it include for receiving power
First gear 61,71 and second connecting portion corresponding to output gear 5, rotate forward the of geared parts 6 and counter gear component 7
Two interconnecting pieces are respectively formed band tooth section 62a, 72a and not toothed evacuation section 62b, 72b with tooth form, band tooth section in the circumferential
62a, 72a for be driven when engage with output gear 5, carry out power transmitting, evacuation section 62b, 72b be used for make second connecting portion and
Output gear 5 is detached from drive connection.That is, rotate forward geared parts 6 first gear 61 and counter gear component 7 first
Gear 71 is continuous tooth, rotates forward geared parts 6 and corresponds to the second connecting portion of output gear 5, counter gear component 7 corresponding to defeated
The second connecting portion of gear 5 is discontinuous tooth in the circumferential out, only just when band tooth section 62a, 72a is engaged with output gear 5
Transfer motion power, driving output shaft rotation.Wherein, rotating forward geared parts 6 includes first gear 61, band tooth section 62a, evacuation section 62b；
The counter gear component 7 includes first gear 71, band tooth section 72a, evacuation section 72b.First tooth for rotating forward geared parts 6
Wheel 61 is often engaged with input gear 4, i.e., rotating forward geared parts 6 directly access power, rotation direction and input by input gear 4
The rotation direction of gear 4 is on the contrary, the intermediate gear 8 is normal with the first gear 71 and input gear 4 of counter gear component 7 simultaneously
Engagement；That is, intermediate gear 8 makes to invert as idle pulley for playing transmitting between counter gear component 7 and input gear 4
The rotation direction of geared parts 7 is identical as the rotation direction of input gear 4；Fig. 4 show the steering signal of each gear.Work as power
When 2 unidirectional continuous rotation of input shaft, power input shaft 2 drives input gear 4 to rotate, and input gear 4, which drives, rotates forward geared parts 6
It rotates forward, while intermediate gear 8 drives counter gear component 7 to invert；Rotate forward geared parts 6 turn to its band tooth section 62a with it is defeated
Out gear 5 engage when, the evacuation section 72b of counter gear component 7 turn to it is corresponding with output gear 5 so that rotating forward geared parts 6
Output gear 5 is driven to rotate forward, output gear 5 drives power output shaft 3 to rotate forward；Its band is turned in counter gear component 7
When tooth section 72a is engaged with output gear 5, rotate forward geared parts 6 evacuation section 62b turn to it is corresponding with output gear 5 so that instead
Rotating disk component 7 drives output gear 5 to invert, and output gear 5 drives power output shaft 3 to rotate backward.
During 2 unidirectional continuous rotation of power input shaft, the rotating forward of geared parts 6, counter gear component 7 are rotated forward instead
Turn, when rotating forward output, the band tooth section 72a and output gear 5 of counter gear component 7 are detached from, evacuation section 72b and output gear 5
Corresponding, i.e. counter gear component 7 and output gear 5 does not generate transmission；Similarly, when inverting output, the band of geared parts 6 is rotated forward
Tooth section 62a and output gear 5 are detached from, and evacuation section 62b is corresponding with output gear 5, that is, rotate forward geared parts 6 and output gear 5 not
Generate transmission；It acts on, alternately exports, to drive with output gear 5 when rotating forward geared parts 6 and different counter gear component 7
The positive and negative swing of power output shaft 3 changes the circle rotation motion mode of traditional cutter head, the continuous rotation of power input shaft 2 is transported
Turn turns to circumference reciprocally swinging of the power output shaft 3 within the scope of certain angle, after cutter head is connect with power output shaft 3,
Cutter head is around 3 center line of power output shaft circumferentially reciprocally swinging, so that cutter head be avoided to enwind soft tissue；And soft tissue has one
Fixed elasticity can avoid cutter head when cutter head does reciprocally swinging, reduce the injury to soft tissue.
Further, be provided in the mounting base 1 be respectively used to installation rotate forward geared parts 6, counter gear component 7 and in
Between gear 8 gear shaft, the gear shaft is parallel with power input shaft 2 and power output shaft 3.Specifically, geared parts 6 are rotated forward
It being mounted in mounting base 1 by first gear axis 63, counter gear component 7 is mounted in mounting base 1 by second gear axis 73,
Intermediate gear 8 is mounted in mounting base by third gear shaft 81, and wherein gear shaft is structure as a whole with corresponding geared parts
Or socket connection.
12 center of cutter head is directed at position to be ground, power input when in one embodiment, to operate convenient for operator
The rotation center of axis 2 is overlapped with the reciprocally swinging center of power output shaft 3.That is the axial line and power output of power input shaft 2
The axial line of axis 3 is overlapped.
In one embodiment, the input gear 4, output gear 5, rotating forward geared parts 6, counter gear component 7
It is configured as with the number of teeth of intermediate gear 8, when input gear 4 turns over one week, power output shaft 3 and output gear 5 are at least complete
Cheng Yici reciprocally swinging.
In one embodiment, the band tooth section 62a for rotating forward geared parts 6 and evacuation section 62b are along second connecting portion
It circumferentially is respectively set 1 section or 2 sections or more, when band tooth section 62a and evacuation section 62b is respectively 2 sections or more, with tooth section 62a and is kept away
Section 62b is allowed to be alternately distributed in the circumferential direction of second connecting portion.I.e. along second connecting portion circumferential direction, 1 band tooth section 62a and 1 are set
Section 62b is avoided, or is arranged alternately 2 or more band tooth section 62a and evacuation section 62b, so when input gear 4 rotates one week,
Power output shaft 3 and output gear 5 achievable 2 times or more reciprocally swinging improve the hunting frequency of power output shaft 3, improve mill
Cut efficiency.Counter gear component 7 with tooth section 72a and evacuation section 72b with rotating forward the structure of geared parts 6 it is similar.
In one embodiment, it rotates forward the first gear 61 of geared parts 6 and second connecting portion is integrally formed, such as scheme
Shown in 6, rotating forward geared parts 6 are column structure, and first gear 61 and second connecting portion are separately positioned on the upper and lower of column structure
Portion.In one embodiment, the first gear 61 and second connecting portion for rotating forward geared parts 6 are while being set in first gear
Two individual components on axis.That is first gear 61 is independent gear, and second connecting portion is the gear with part tooth, and two
Geared sleeve rotates synchronously on first gear axis with first gear axis.
Structure similar with above-mentioned rotating forward geared parts 6 can be used in counter gear component 7.
In one embodiment, to completely disengage in time convenient for band tooth section 62a, 72a and output gear 5, tooth is rotated forward
Wheel component 6 and counter gear component 7 with tooth section 62a, 72a, along respective rotation direction, the last one is detached from output gear 5
Jagged 62c and 72c is opened up on tooth, i.e., cuts off a part on the last one tooth and form incomplete tooth.As shown in Figure 6 and Figure 7.
In one embodiment, the swing angle of power output shaft 3 is less than or equal to 100 degree.
To fix power input shaft 2 and 3 axial position of power output shaft；It is provided in the mounting base 1 for limiting
The first position limiting structure that power input shaft 2 is axially moved and the second limit knot for limiting the axial movement of power output shaft 3
Structure.
Specifically, axle sleeve 18 is installed, power input shaft 2 is pre-large post-small multi-diameter shaft, the power in the mounting base 1
Input shaft 2 is packed into backward in the axle sleeve 18, and the shaft shoulder of 2 front end of power input shaft is against on 18 front end face of axle sleeve, the power
2 rear end of input shaft is installed with stop collar 19, and stop collar 19 is against 18 rear end face of axle sleeve, to realize the axial direction of power input shaft 2
Limit；The end face of stop collar 19, the shaft shoulder and axle sleeve 18 forms first position limiting structure.
On this basis, it is additionally provided with the third position limiting structure for limiting the axial movement of axle sleeve 18 in mounting base 1, such as schemes
Shown, 1 inner wall of mounting base is provided with step, and the front end of the axle sleeve 18 is against on the step, and 1 rear end of mounting base is connected with limit
Set 20, limit sleeve 20 is against on 18 rear end face of axle sleeve, to realize the axial limiting of axle sleeve 18, the step and limit sleeve 20 are constituted
Third position limiting structure.
Further, 1 front end of mounting base has end cap 13, and end cap 13 is equipped with the via hole passed through for power output shaft 3, institute
It states and is installed with position-arresting disk 15 on power output shaft 3, the front in mounting base 1 positioned at position-arresting disk 15 is provided with the first locating part
14, outside power output shaft 3, the drive end bearing bracket 13 of mounting base 1 is kept off in front of the first locating part 14 14 empty set of the first locating part,
Rear in mounting base 1 positioned at position-arresting disk 15 is provided with the second locating part 16, and 16 empty set of the second locating part is in power output shaft 3
Outside, the rear in the mounting base 1 positioned at the second locating part 16 is provided with pressing plate 17, and 13 inner wall of end cap is two-stage along the longitudinal direction
Hierarchic structure is located at 13 rear of end cap on 1 inner wall of mounting base and is provided with boss, and pressing plate 17 is pressed on boss by 13 rear end of end cap,
The preceding ladder of 13 inner wall of end cap blocks 14 front of the first locating part, and the rear ladder of 13 inner wall of end cap is kept off before the second locating part 16
Side, and the gear of pressing plate 17 is at 16 rear of the second locating part, thus by end cap 13 and pressing plate 17 to the first locating part 14 and the
Two locating parts, 16 axial limiting, and position-arresting disk 15 is between the first locating part 14 and the second locating part 16, it can be relative to
One locating part 14 and the rotation of the second locating part 16, the axial position of position-arresting disk 15 are limited by the first locating part 14 and the second locating part 16
It is fixed, to limit the axial position of power output shaft 3.Wherein, position-arresting disk 15, the first locating part 14 and the second locating part 16 are constituted
Second position limiting structure.
In one embodiment, the power output shaft 3 be in knife pipe, interior knife pipe directly with 10 center of second gear
It is fixedly connected.
In one embodiment, the power output shaft 3 includes interior knife pipe and the transmission being fixedly connected with interior knife pipe
Axis 10, the transmission shaft 10 are fixedly connected with second gear 10, as shown in Figure 1.
On this basis, the utility model also provides a kind of grinding knife tool, including cutter head 12 and the grinding knife tool
Power transfer mechanism, wherein interior knife pipe is connect with the cutter head 12.Certain grinding knife tool further includes solid with 1 front of mounting base
Surely the outer knife pipe 13 connected, and the connection structure 21 etc. for connecting power handle and power input shaft 2；Outer 13 He of knife pipe
Connection structure 21 belongs to the prior art, is not repeating.
The utility model changes the circle rotation motion mode of traditional cutter head 12, and the movement of continuously unidirectional circle rotation is turned
The reciprocally swinging on circumferencial direction within the scope of certain angle is turned to, after cutter head 12 is connect with power output shaft 3,12 moving of cutter head
The center line of power output shaft 3 carries out reciprocally swinging on the circumferencial direction of power output shaft 3, so that cutter head 12 be avoided to enwind
Soft tissue；And soft tissue has certain elasticity, when cutter head 12 does reciprocally swinging, can avoid cutter head 12, reduce to soft tissue
Injury.
Any person skilled in the art all can be under the spirit and scope without prejudice to the utility model, to above-described embodiment
Carry out modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed in the utility model
Spirit with technical idea under all equivalent modifications or change for being completed, should be contained by the claim of the utility model
Lid.
Claims (10)
1. a kind of power transfer mechanism of grinding knife tool, for the power of power handle to be transferred to cutter head, it is characterised in that: packet
Include mounting base and the power input shaft for accessing power being arranged in mounting base and power for being connect with cutter head it is defeated
Shaft is provided with input gear on the power input shaft, is provided with output gear on the power output shaft；The power passes
Passing mechanism further includes rotating forward geared parts, counter gear component and intermediate gear, the rotating forward geared parts and counter gear portion
Part includes the first gear for receiving power and the second connecting portion corresponding to output gear, and the second connecting portion is in week
It is upwardly formed the evacuation section with tooth section and with output gear disengaging engaged with output gear, the input gear and the rotating forward
The first gear and intermediate gear of geared parts often engage, and the first gear of the intermediate gear and counter gear component is often nibbled
It closes；The unidirectional continuous rotation of power input shaft, while driving and rotating forward geared parts rotating forward and the reversion of counter gear component, when
When engaging with tooth section with output gear of geared parts is rotated forward, the evacuation section of the counter gear component is corresponding with output gear,
Power output shaft rotates forward；When the band tooth section of counter gear component is engaged with output gear, the rotating forward geared parts
Evacuation section is corresponding with output gear, and power output shaft rotates backward.
2. the power transfer mechanism of grinding knife tool according to claim 1, it is characterised in that: be provided in the mounting base
It is respectively used to the gear shaft that installation rotates forward geared parts, counter gear component and intermediate gear, the gear shaft and power input
Axis is parallel with power output shaft.
3. the power transfer mechanism of grinding knife tool according to claim 1, it is characterised in that: the axis of the power input shaft
Heart line is overlapped with the axial line of power output shaft.
4. the power transfer mechanism of grinding knife tool according to claim 1, it is characterised in that: the rotating forward geared parts,
The number of teeth of counter gear component and intermediate gear is configured as, when input gear turns over one week, power output shaft and output gear
Wheel at least completes primary positive and negative reciprocally swinging.
5. the power transfer mechanism of grinding knife tool according to claim 1, it is characterised in that: the band tooth section and evacuation section
1 section or 2 sections or more is circumferentially respectively set along second connecting portion, when band tooth section is respectively 2 sections or more with evacuation section, the band tooth
Section and evacuation section are alternately distributed in the circumferential direction of second connecting portion.
6. the power transfer mechanism of grinding knife tool according to claim 1, it is characterised in that: the rotating forward geared parts and
Opening up along the tooth of the last one disengaging output gear of respective rotation direction with tooth section for counter gear component is jagged.
7. the power transfer mechanism of grinding knife tool according to claim 2, it is characterised in that: the first gear and second
Interconnecting piece is integrally formed or is set in simultaneously two individual components on corresponding teeth wheel shaft.
8. the power transfer mechanism of grinding knife tool described in -7 any one according to claim 1, it is characterised in that: the installation
The first position limiting structure for limiting power input shaft axial movement is provided on seat and for limiting power output shaft axial direction
Second position limiting structure of movement.
9. the power transfer mechanism of grinding knife tool described in -7 any one according to claim 1, it is characterised in that: the power
Output shaft is interior knife pipe；Or the power output shaft includes interior knife pipe and the transmission shaft that is fixedly connected with interior knife pipe, it is described
Transmission shaft is connect with output gear.
10. a kind of grinding knife tool, it is characterised in that: including cutter head and grinding knife tool described in any one of claim 1-9
Power transfer mechanism, the power output shaft are connect with the cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762544.1U CN209007355U (en) | 2018-10-29 | 2018-10-29 | The power transfer mechanism and grinding knife tool of grinding knife tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762544.1U CN209007355U (en) | 2018-10-29 | 2018-10-29 | The power transfer mechanism and grinding knife tool of grinding knife tool |
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| Publication Number | Publication Date |
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| CN209007355U true CN209007355U (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821762544.1U Active CN209007355U (en) | 2018-10-29 | 2018-10-29 | The power transfer mechanism and grinding knife tool of grinding knife tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621228A (en) * | 2020-12-22 | 2021-04-09 | 朱朝烽 | Connecting rod machining device |
-
2018
- 2018-10-29 CN CN201821762544.1U patent/CN209007355U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621228A (en) * | 2020-12-22 | 2021-04-09 | 朱朝烽 | Connecting rod machining device |
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