CN109490565A - A kind of specimen needle movement mechanism - Google Patents
A kind of specimen needle movement mechanism Download PDFInfo
- Publication number
- CN109490565A CN109490565A CN201811443091.0A CN201811443091A CN109490565A CN 109490565 A CN109490565 A CN 109490565A CN 201811443091 A CN201811443091 A CN 201811443091A CN 109490565 A CN109490565 A CN 109490565A
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- Prior art keywords
- spline
- lifting
- driving
- unit
- screw rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
Abstract
The present invention relates to a kind of specimen needle movement mechanisms, belong to technical field of medical inspection equipment, specifically include frame body, driving unit, rotary unit and lifting unit, wherein the frame body includes bottom plate, top plate and the pillar being fixed between the bottom plate and the top plate, the driving unit includes driving motor, driving gear, draws frame and electromagnet, the rotary unit includes spline, hub splines, spline bearing, spline bearing seat, bearing seat strut and rotary drive gear, and the lifting unit includes screw rod, spline lifting pedestal and lifting driven gear.The driving to rotary unit and lifting unit can be realized specimen needle movement mechanism proposed by the invention using same driving motor, using electromagnet and frame is drawn to realize specimen needle movement mechanism being switched fast between rotary motion and elevating movement, have many advantages, such as that structure is simple, small in size, at low cost, reliability is higher simultaneously, easy to maintain.
Description
Technical field
The present invention relates to technical field of medical inspection equipment, more particularly to a kind of specimen needle movement mechanism.
Background technique
Currently, the movement mechanism for drawing the specimen needle of liquid on testing instruments is mostly independent machine in field of medical examination
Structure, i.e. lifting mechanism and rotating mechanism be it is separated, the two works independently, and this separated lifting mechanism and rotating mechanism exist
Following disadvantage: components are more, and assembly technology is complicated；Fault point is more, and maintenance is inconvenient；Volume is big, wasting space；Production adds
Work, assembly efficiency are low, at high cost etc..
Summary of the invention
Based on this, it is necessary to for existing specimen needle movement mechanism exist structure is complicated, failure is more, volume is big, at
The problems such as this is high provides a kind of specimen needle movement mechanism.
To solve the above problems, the invention adopts the following technical scheme:
A kind of specimen needle movement mechanism, including frame body, driving unit, rotary unit and lifting unit, the frame body include
Bottom plate, top plate and the pillar being fixed between the bottom plate and the top plate, the driving unit include driving motor, driving tooth
Wheel, drawing frame and electromagnet, the rotary unit include spline, hub splines, spline bearing, spline bearing seat, bearing seat strut
And rotary drive gear, the lifting unit include screw rod, spline lifting pedestal and lifting driven gear；
The driving motor is fixedly connected with the drawing frame, and the output shaft of the driving motor is fixed with the driving gear
Connection, the drawing frame are slidably connected with the top plate, and the electromagnet is fixed on the top plate；
Specimen needle unit is fixedly connected with the spline, and the hub splines is set on the spline, the splined shaft
Set is fixedly connected with the inner ring of the spline bearing, and the outer ring of the spline bearing is fixedly connected with the spline bearing seat, institute
It states spline bearing seat and is fixedly connected by the bearing seat strut with the top plate, the rotary drive gear and the splined shaft
Set is fixedly connected, and after the electromagnet is powered, the electromagnet and the drawing frame are attracted, the driving gear and the rotation
Driven gear engagement；
One end of the spline lifting pedestal is connect by bearing with the bottom end of the spline, and the other end passes through screw and institute
Screw rod connection is stated, the screw rod is connect with the top plate, and the top of the screw rod is fixedly connected with the lifting driven gear,
When the electromagnet is separated with the drawing frame, the driving gear is engaged with the lifting driven gear.
Compared with prior art, the invention has the following advantages:
Specimen needle movement mechanism proposed by the invention can be realized using same driving motor to rotary unit and lifting
The driving of unit using electromagnet and draws frame to realize specimen needle movement mechanism quickly cutting between rotary motion and elevating movement
It changes, it is simple, small in size, at low cost to have many advantages, such as structure, while reliability is higher, it is easy to maintain.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of specimen needle movement mechanism of the present invention；
Fig. 2 is the top view of specimen needle movement mechanism shown in Fig. 1.
Specific embodiment
Technical solution of the present invention is described in detail below in conjunction with attached drawing and preferred embodiment.
In one of the embodiments, as shown in Figs. 1-2, the present invention discloses a kind of specimen needle movement mechanism, the mechanism packet
Include frame body, driving unit, rotary unit and lifting unit, wherein frame body includes bottom plate 1, top plate 2 and pillar 3, pillar 3 and bottom
1 surrounding of plate is fixedly connected, and top plate 2 is fixed on the top of pillar 3, and frame body is driving unit, rotary unit and lifting unit provide
Stable support.
Specifically, in the present embodiment, driving unit includes driving motor 4, driving gear 5, draws frame 6 and electromagnet 7, is driven
Dynamic motor 4 is fixedly connected with frame 6 is drawn, while the output shaft of driving motor 4 is fixedly and coaxially connected with driving gear 5, driving gear 5
Positioned at drawing in frame 6, the output shaft of driving motor 4 is connect by bearing with frame 6 is drawn, and driving motor 4 drives driving gear 5 to rotate；
It draws frame 6 to be slidably connected with top plate 2, draws frame 6 under the effect of external force can be mobile relative to top plate 2；Electromagnet 7 is fixed on top plate 2,
Electromagnet 7 is corresponding with frame 6 is drawn, and draws frame 6 in order to which electromagnet 7 pulls after powered up.
Lifting unit includes screw rod 14, spline lifting pedestal 15 and goes up and down driven gear 16, wherein spline lifting pedestal 15
One end connect with the bottom end of spline 8 by bearing, therefore spline 8 can be rotated relative to spline lifting pedestal 15, spline lifting bottom
The other end of seat 15 is fixed with screw, and screw rod 14 is connect with screw by being threadedly engaged, while screw rod 14 is connect with top plate 2, example
Such as screw rod 14 can be connect by screw or bearing with top plate 2, and while fixed screw rod 14, it is opposite not influence screw rod 14
In the rotation of top plate 2；The top of screw rod 14 is fixedly connected with lifting driven gear 16, and lifting driven gear 16 is able to drive screw rod
14 rotations, when electromagnet 7 is not powered on, driving gear 5 is engaged with lifting driven gear 16, and is divided with rotary drive gear phase
From being as shown in Fig. 2, rotary drive gear 13 can not be shown in the top view of specimen needle movement mechanism as shown in Fig. 1
Enable Fig. 2 that the positional relationship between driving gear 5, rotary drive gear 13 and lifting driven gear 16, Fig. 2 is better shown
In omit section components, and at rotary drive gear 13 use shadow representation, when electromagnet 7 with draw frame 6 separate when, active
Gear 5 is separated with rotary drive gear 13, is engaged with lifting driven gear 16, and driving motor 4 by driving gear 5 and rises at this time
Dropping driven gear 16 drives spline 8 to carry out elevating movement.
Lifting unit realizes that lifting resets using optoelectronic switch, and further, lifting unit further includes for assistance for lifting
The lifting optoelectronic switch that unit resets, lifting optoelectronic switch includes 17 He of optocoupler baffle for being fixed on 15 one end of spline lifting pedestal
The optocoupler 18 being fixed on pillar 3, as shown in Figure 1, when optocoupler baffle 17 carries out elevating movement with spline lifting pedestal 15, light
Coupling baffle 17 passes through optocoupler 18.
Rotary unit includes spline 8, hub splines 9, spline bearing 10, spline bearing seat 11, bearing seat strut 12 and rotation
Turn driven gear 13, wherein specimen needle unit is fixedly connected with spline 8, and the rotary motion and elevating movement of spline 8 will drive
The specimen needle unit of testing instruments is acted accordingly, to complete sample imbibition；Hub splines 9 is set on spline 8, flower
Key axle sleeve 9 can be slided with respect to spline 8 along the length direction of spline 8, but hub splines 9 cannot be rotated relative to spline 8, while spline
Axle sleeve 9 is fixedly connected with the inner ring of spline bearing 10, and the outer ring of spline bearing 10 is fixedly connected with spline bearing seat 11, splined shaft
Seat 11 is held to be fixedly connected by bearing seat strut 12 with top plate 2；Rotary drive gear 13 is fixedly and coaxially connected with hub splines 9,
Rotary drive gear 13 is able to drive hub splines 9 and spline 8 rotates, after electromagnet 7 is powered, driving motor 4, driving gear
5 and draw frame 6 under the suction of electromagnet 7 close to electromagnet 7, when electromagnet 7 and when frame 6 being drawn to be attracted, driving gear 5 is detached from
Lifting driven gear 16 is simultaneously engaged with rotary drive gear 13, and driving motor 4 passes through driving gear 5 and rotary drive gear at this time
13 driving splines 8 are rotated.Rotary unit in the present embodiment realizes spinning reduction, this field skill using optoelectronic switch
Art personnel can be designed the specific installation site of optoelectronic switch according to actual needs, and details are not described herein again.
The working method of specimen needle movement mechanism is as follows in the present embodiment:
Driving motor 4 drives the spline 8 being mounted on screw to move up and down using gear driving screw rod 14, thus band
The mechanisms such as the dynamic specimen needle unit being mounted on above spline 8 carry out elevating movement；When needing rotary motion, electromagnet 7 is pulled
Draw frame 6, move driving gear 5 to 8 direction of spline, at the same be detached from 14 top of screw rod lifting driven gear 16 and with spline 8
Rotary drive gear 13 engage, spline 8 is rotated under the action of gear at this time, to drive the sample that is mounted above
The mechanisms such as needle unit are rotated；Optoelectronic switch detects upper-lower, left-right positions of each component, finally realizes entire mechanism
Lifting and rotation.
The specimen needle movement mechanism that the present embodiment is proposed can be realized to rotary unit and rise using same driving motor
The driving for dropping unit using electromagnet and draws frame to realize that specimen needle movement mechanism is quick between rotary motion and elevating movement
Switching, it is simple, small in size, at low cost to have many advantages, such as structure, while reliability is higher, easy to maintain.
As a kind of specific embodiment, the bottom end of screw rod 14 is mounted on bottom plate 1 in corresponding circular hole, the bottom of to avoid
Plate 1 causes to limit to the rotation of screw rod 14.
Further, fixing bearing is equipped in circular hole, the bottom end of screw rod 14 is fixedly connected with fixing bearing.It will by bearing
Screw rod 14 is connect with bottom plate 1, while increasing by 14 mounting stability of screw rod, will not cause to limit to the normal rotation of screw rod 14.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (5)
1. a kind of specimen needle movement mechanism, which is characterized in that described including frame body, driving unit, rotary unit and lifting unit
Frame body includes bottom plate (1), top plate (2) and the pillar (3) being fixed between the bottom plate (1) and the top plate (2), the driving
Unit includes driving motor (4), driving gear (5), draws frame (6) and electromagnet (7), and the rotary unit includes spline (8), flower
Key axle sleeve (9), spline bearing (10), spline bearing seat (11), bearing seat strut (12) and rotary drive gear (13), the liter
Drop unit includes screw rod (14), spline lifting pedestal (15) and lifting driven gear (16)；
The driving motor (4) is fixedly connected with the drawing frame (6), the output shaft and the driving tooth of the driving motor (4)
Wheel (5) is fixedly connected, and the drawing frame (6) is slidably connected with the top plate (2), and the electromagnet (7) is fixed on the top plate (2)
On；
Specimen needle unit is fixedly connected with the spline (8), and the hub splines (9) is set on the spline (8), the flower
Key axle sleeve (9) is fixedly connected with the inner ring of the spline bearing (10), the outer ring of the spline bearing (10) and the splined shaft
It holds seat (11) to be fixedly connected, the spline bearing seat (11) connects by the way that the bearing seat strut (12) and the top plate (2) are fixed
It connecing, the rotary drive gear (13) is fixedly connected with the hub splines (9), after the electromagnet (7) are powered, the electricity
Magnet (7) and the drawing frame (6) are attracted, and the driving gear (5) is engaged with the rotary drive gear (13)；
One end of the spline lifting pedestal (15) is connect by bearing with the bottom end of the spline (8), and the other end passes through screw
It is connect with the screw rod (14), the screw rod (14) connect with the top plate (2), and the top of the screw rod (14) and the liter
Drop driven gear (16) is fixedly connected, when the electromagnet (7) is separated with the drawing frame (6), the driving gear (5) and institute
State lifting driven gear (16) engagement.
2. specimen needle movement mechanism according to claim 1, which is characterized in that the lifting unit further includes lifting photoelectricity
Switch, the lifting optoelectronic switch include being fixed on the optocoupler baffle (17) of described spline lifting pedestal (15) one end and being fixed on
Optocoupler (18) on the pillar (3)；
When the optocoupler baffle (17) carries out elevating movement with the spline lifting pedestal (15), optocoupler baffle (17) warp
Cross the optocoupler (18).
3. specimen needle movement mechanism according to claim 1 or 2, which is characterized in that
The screw rod (14) is connect by screw or bearing with the top plate (2).
4. specimen needle movement mechanism according to claim 1 or 2, which is characterized in that
The bottom end of the screw rod (14) is mounted on the bottom plate (1) in corresponding circular hole.
5. specimen needle movement mechanism according to claim 4, which is characterized in that
Fixing bearing is equipped in the circular hole, the bottom end of the screw rod (14) is fixedly connected with the fixing bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443091.0A CN109490565A (en) | 2018-11-29 | 2018-11-29 | A kind of specimen needle movement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443091.0A CN109490565A (en) | 2018-11-29 | 2018-11-29 | A kind of specimen needle movement mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN109490565A true CN109490565A (en) | 2019-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811443091.0A Pending CN109490565A (en) | 2018-11-29 | 2018-11-29 | A kind of specimen needle movement mechanism |
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| CN (1) | CN109490565A (en) |
Citations (12)
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|---|---|---|---|---|
| JP2003344428A (en) * | 2002-05-27 | 2003-12-03 | Juki Corp | Dispensing head |
| CN1748094A (en) * | 2003-02-10 | 2006-03-15 | 百泰克股份有限公司 | Dual motion actuator |
| CN200965541Y (en) * | 2006-10-26 | 2007-10-24 | 深圳迈瑞生物医疗电子股份有限公司 | A drive structure integrated with the linear and rotary movement |
| CN201903549U (en) * | 2010-12-02 | 2011-07-20 | 桂林优利特医疗电子有限公司 | Improved sampling/agitation device |
| CN202119653U (en) * | 2011-07-06 | 2012-01-18 | 长春迪瑞医疗科技股份有限公司 | Probe movement mechanism |
| CN103926417A (en) * | 2014-04-22 | 2014-07-16 | 深圳市库贝尔生物科技有限公司 | Method for simultaneously realizing sampling, sample addition and stirring of sample needle |
| CN103941031A (en) * | 2014-04-22 | 2014-07-23 | 深圳市库贝尔生物科技有限公司 | Integrated sample needle loading and stirring system |
| CN104179927A (en) * | 2014-08-15 | 2014-12-03 | 中国科学院上海技术物理研究所 | Locking and unlocking device of two-dimensional translating mechanism |
| CN104358837A (en) * | 2014-10-31 | 2015-02-18 | 张卫 | Tandem driver |
| CN204463973U (en) * | 2015-02-15 | 2015-07-08 | 宁波兴茂电子科技有限公司 | A kind of rotary magnet device capable of reversing |
| CN207213047U (en) * | 2017-07-31 | 2018-04-10 | 傅峰峰 | A kind of changeable transmission mechanism used |
| CN209327372U (en) * | 2018-11-29 | 2019-08-30 | 吉林基蛋生物科技有限公司 | A kind of specimen needle movement mechanism |
-
2018
- 2018-11-29 CN CN201811443091.0A patent/CN109490565A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003344428A (en) * | 2002-05-27 | 2003-12-03 | Juki Corp | Dispensing head |
| CN1748094A (en) * | 2003-02-10 | 2006-03-15 | 百泰克股份有限公司 | Dual motion actuator |
| CN200965541Y (en) * | 2006-10-26 | 2007-10-24 | 深圳迈瑞生物医疗电子股份有限公司 | A drive structure integrated with the linear and rotary movement |
| CN201903549U (en) * | 2010-12-02 | 2011-07-20 | 桂林优利特医疗电子有限公司 | Improved sampling/agitation device |
| CN202119653U (en) * | 2011-07-06 | 2012-01-18 | 长春迪瑞医疗科技股份有限公司 | Probe movement mechanism |
| CN103926417A (en) * | 2014-04-22 | 2014-07-16 | 深圳市库贝尔生物科技有限公司 | Method for simultaneously realizing sampling, sample addition and stirring of sample needle |
| CN103941031A (en) * | 2014-04-22 | 2014-07-23 | 深圳市库贝尔生物科技有限公司 | Integrated sample needle loading and stirring system |
| CN104179927A (en) * | 2014-08-15 | 2014-12-03 | 中国科学院上海技术物理研究所 | Locking and unlocking device of two-dimensional translating mechanism |
| CN104358837A (en) * | 2014-10-31 | 2015-02-18 | 张卫 | Tandem driver |
| CN204463973U (en) * | 2015-02-15 | 2015-07-08 | 宁波兴茂电子科技有限公司 | A kind of rotary magnet device capable of reversing |
| CN207213047U (en) * | 2017-07-31 | 2018-04-10 | 傅峰峰 | A kind of changeable transmission mechanism used |
| CN209327372U (en) * | 2018-11-29 | 2019-08-30 | 吉林基蛋生物科技有限公司 | A kind of specimen needle movement mechanism |
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