CN201042546Y - Propulsion mechanism of microinjection pump - Google Patents
Propulsion mechanism of microinjection pump Download PDFInfo
- Publication number
- CN201042546Y CN201042546Y CNU2007201063427U CN200720106342U CN201042546Y CN 201042546 Y CN201042546 Y CN 201042546Y CN U2007201063427 U CNU2007201063427 U CN U2007201063427U CN 200720106342 U CN200720106342 U CN 200720106342U CN 201042546 Y CN201042546 Y CN 201042546Y
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- supported plate
- micro
- injection pump
- lever
- joins
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- Expired - Fee Related
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Abstract
The utility model discloses a microinjection pump propelling mechanism, which comprises a microinjection pump housing, a left support plate and a right support plate fixed on the housing, a motor fixed on the left support plate, a first reduction gear, a second reduction gear, a screw, an L-shaped split nut, and a small amount axial displacement alarm device arranged at the right support plate. The motor, the first reduction gear, the second reduction gear, the screw and the L-shaped slit nut are sequentially connected with each other. The screw is supported on the left and the right support plates on both ends thereof, and a slider is connected with a slide bar, a guide bar, and a push plate embedded in the flange of a syringe piston. A cylinder of the syringe is fixed on the microinjection pump housing, the slide is connected with the L-shaped split nut through a first pin, and the L-shaped split nut is connected with the screw at one end and with the push plate through a press spring at the other end. The utility model has simple and compact structure, convenient assembly and simple operation and has jam alarm function.
Description
Technical field
This utility model relates to medical apparatus and instruments, relates in particular to a kind of propulsive mechanism of micro-injection pump.
Background technology
Micro-injection pump is a kind ofly by syringe medicinal liquid to be continued the intravital medical apparatus of trace input people.The syringe part of syringe can load and unload on the housing of micro-injection pump as required; The piston of injector syringe is connected with the propulsive mechanism of micro-injection pump, and under the promotion of propulsive mechanism constantly trace inject in the human body.The amount of liquid of injection can be provided with within the specific limits in unit interval; In addition, the usually replaceable syringe of different size model more than 2 kinds of micro-injection pump.
Propulsive mechanism commonly used comprises motor, connects and has the screw rod of Motor Drive rotation, be with screw rod can break away from, radially spiral shell and and the nut that moves along screw axial, with nut along being fixed in axially movable slide block of micro-injection pump case top guide bar and push rod.Rotate by the Motor Drive screw rod during work, and drive the moving linearly of cutting somebody's hair by the screw drive nut; To cut somebody's hair after injection finishes and move to original position.At present both at home and abroad the nut open-and-close mechanism on the syringe pump adopts basically is that a kind of and rocker are half nut of one, and it can be swung around a certain center, the back-moving spring that radially is provided with of nut is pressed to the screw mandrel flank of tooth with half-nut, make the engagement of nut and screw mandrel, stir rocker with the spring force rightabout, nut is promptly thrown off with screw tooth surface, this mechanism folding with convenience, but structure is complicated.
Summary of the invention
The purpose of this utility model provides a kind of simple and compact for structure, processing ease, is convenient for changing the micro-injection pump propulsive mechanism of syringe.
The propulsive mechanism of micro-injection pump: be fixed with left supported plate on the micro-injection pump case, right supported plate, be fixed with motor at left supported plate, motor, first reduction gearing, second reduction gearing, screw rod, L type clasp nut joins successively, axial displacement alarm device in a small amount is equipped with at the right supported plate place, the screw rod two supports is at left supported plate, on the right supported plate, slide block be fixed on left supported plate, slide bar on the right supported plate, guide rod reaches with the push pedal of chimeric syringe plunger flange and joins, injector syringe is fixed on the micro-injection pump case, slide block joins with L type clasp nut by first pin, L type clasp nut one end and screw rod join, and the L type clasp nut other end joins through stage clip and push pedal.
Described a small amount of axial displacement alarm device has spring base, spring base is provided with bearing, back pressure spring, be provided with and the corresponding adjustment screw of spring base in the middle of the lever, lever lower end second pin joins with the right supported plate lower end, is provided with and the corresponding obstruction alarm switch of lever in the right supported plate upper end.
Described a small amount of axial displacement alarm device has spring base, spring base is provided with bearing, back pressure spring, the lever lower end is provided with and the corresponding adjustment screw of spring base, joins through second pin and right supported plate upper end in the middle of the lever, be provided with and the micro-injection pump case obstruction alarm switch that joins in lever upper end correspondence.
This utility model is simple and compact for structure, easy for installation, processing ease, has the obstruction warning function.
Description of drawings
Fig. 1 is the propulsive mechanism sketch map of micro-injection pump;
Fig. 2 is the structural representation of balance pivot of the present utility model when being positioned in the middle of the lever;
Among the figure: motor 1, left supported plate 2, first reduction gearing 3, second reduction gearing 4, screw rod 5, slide bar 6, slide block 7, first pin 8, L type clasp nut 9, guide rod 10, right supported plate 11, micro-injection pump case 12, stage clip 13, push pedal 14, syringe piston 15, injector syringe 16, screw 31, lever 32, obstruction alarm switch 33, back pressure spring 34, second pin 35, spring base 36, bearing 37.
The specific embodiment
In the propulsive mechanism of micro-injection pump, be fixed with left supported plate 2 on the micro-injection pump case 12, right supported plate 11, be fixed with motor 1 at left supported plate 2, motor 1, first reduction gearing 3, second reduction gearing 4, screw rod 5, L type clasp nut 9 joins successively, axial displacement alarm device in a small amount is equipped with at right supported plate 11 places, screw rod 5 two supports are at left supported plate 2, on the right supported plate 11, slide block 7 be fixed on left supported plate 2, slide bar 6 on the right supported plate 11, guide rod 10 reaches with the push pedal 14 of chimeric syringe piston 15 flanges and joins, injector syringe 16 is fixed on the micro-injection pump case 12, slide block 7 joins with L type clasp nut 9 by first pin 8, L type clasp nut 9 one ends and screw rod 5 join, and the L type clasp nut other end joins through stage clip 13 and push pedal 14.
Described a small amount of axial displacement alarm device has spring base 36, spring base 36 is provided with bearing 37, back pressure spring 34, be provided with and spring base 36 corresponding adjustment screw 31 in the middle of the lever 32, lever 32 lower ends second pin 35 joins with right supported plate 11 lower ends, is provided with in right supported plate 11 upper ends and lever 32 corresponding obstruction alarm switches (33).
Described a small amount of axial displacement alarm device has spring base 36, spring base 36 is provided with bearing 37, back pressure spring 34, lever 32 lower ends are provided with and spring base 36 corresponding adjustment screw 31, join with right supported plate 11 upper ends through second pin 35 in the middle of the lever 32, be provided with to join in lever 32 upper end correspondences and block alarm switch 33 with micro-injection pump case 12.
Installing and inhale when the injector syringe of liquid medicine is arranged, is that center of rotation is swung to stage clip active force rightabout with L type clasp nut with first pin, and L type clasp nut breaks away from screw rod, and the push pedal on the slide block can be done translation on guide rod, slide bar; The injector syringe flange is embedded in the micro-injection pump case caulking groove, is located on the micro-injection pump case, simultaneously syringe plunger flange is embedded in caulking groove in the push pedal.During injection, start and to be contained on the left supported plate motor and to slow down through reduction gearing, the screw rod that is contained between left supported plate and the right supported plate with driving slowly runs, make and be arranged on the slide block and move along the screw axial straight line with L type clasp nut that screw rod screws togather, with drive slide block and on push pedal be moved to the left synchronously along guide rod, and the piston that promotes to be embedded in the push pedal caulking groove moves axially left, continues medicinal liquid is injected in the human body so as to trace; When push pedal is obstructed, and when resistance surpasses about 60N, the spring base that screw rod drives on the bearing is made microdisplacement compression back pressure spring, this microdisplacement is through being that the lever of center of rotation amplifies and depresses the obstruction alarm switch with second pin, cut off the power supply of motor, and open warning circuit simultaneously and do the indication of reporting to the police.Screw on the lever is used to adjust the shake-up position of alarm switch.After a shot finishes, with hands L type clasp nut is broken away from screw rod, push pedal and slide block move to right to right supported plate side starting point place along guide rod, can inject preparation next time.
Claims (3)
1. the propulsive mechanism of a micro-injection pump, it is characterized in that, be fixed with left supported plate (2) on the micro-injection pump case (12), right supported plate (11), be fixed with motor (1) at left supported plate (2), motor (1), first reduction gearing (3), second reduction gearing (4), screw rod (5), L type clasp nut (9) joins successively, right supported plate (11) locates to be equipped with axial displacement alarm device in a small amount, screw rod (5) two supports is in left supported plate (2), on the right supported plate (11), slide block (7) be fixed on left supported plate (2), slide bar (6) on the right supported plate (11), guide rod (10) reaches with the push pedal (14) of chimeric syringe piston (15) flange and joins, injector syringe (16) is fixed on the micro-injection pump case (12), slide block (7) joins with L type clasp nut (9) by first pin (8), L type clasp nut (9) one ends and screw rod (5) join, and the L type clasp nut other end joins through stage clip (13) and push pedal (14).
2. the propulsive mechanism of a kind of micro-injection pump according to claim 1, it is characterized in that, described a small amount of axial displacement alarm device has spring base (36), spring base (36) is provided with bearing (37), back pressure spring (34), be provided with and the corresponding adjustment screw of spring base (36) (31) in the middle of the lever (32), lever (32) lower end second pin (35) joins with right supported plate (11) lower end, is provided with and the corresponding obstruction alarm switch of lever (32) (33) in right supported plate (11) upper end.
3. the propulsive mechanism of a kind of micro-injection pump according to claim 1, it is characterized in that, described a small amount of axial displacement alarm device has spring base (36), spring base (36) is provided with bearing (37), back pressure spring (34), lever (32) lower end is provided with and the corresponding adjustment screw of spring base (36) (31), joins through second pin (35) and right supported plate (11) upper end in the middle of the lever (32), be provided with to join in lever (32) upper end correspondence and block alarm switch (33) with micro-injection pump case (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201063427U CN201042546Y (en) | 2007-02-08 | 2007-02-08 | Propulsion mechanism of microinjection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201063427U CN201042546Y (en) | 2007-02-08 | 2007-02-08 | Propulsion mechanism of microinjection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042546Y true CN201042546Y (en) | 2008-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201063427U Expired - Fee Related CN201042546Y (en) | 2007-02-08 | 2007-02-08 | Propulsion mechanism of microinjection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042546Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644585B (en) * | 2008-08-06 | 2012-02-29 | 北京谊安医疗***股份有限公司 | Detection device used for syringe putter of syringe pump |
| CN102715909A (en) * | 2012-06-12 | 2012-10-10 | 上海瑞曼信息科技有限公司 | Automatic animal administration system |
| CN103792276A (en) * | 2014-01-26 | 2014-05-14 | 山东百川同创能源有限公司 | Precise trace sampling device and method for liquid raw material |
| CN105339021A (en) * | 2013-03-19 | 2016-02-17 | 株式会社Jms | Syringe pump and syringe pump control method |
| CN106421978A (en) * | 2012-12-21 | 2017-02-22 | 德卡产品有限公司 | Syringe pump system |
| CN109908435A (en) * | 2019-04-30 | 2019-06-21 | 江苏三和生物工程股份有限公司 | A kind of medical precise micro killer injecting pump |
| CN111120608A (en) * | 2019-12-24 | 2020-05-08 | 颀中科技（苏州）有限公司 | Half nut assembly |
-
2007
- 2007-02-08 CN CNU2007201063427U patent/CN201042546Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644585B (en) * | 2008-08-06 | 2012-02-29 | 北京谊安医疗***股份有限公司 | Detection device used for syringe putter of syringe pump |
| CN102715909A (en) * | 2012-06-12 | 2012-10-10 | 上海瑞曼信息科技有限公司 | Automatic animal administration system |
| CN106421978A (en) * | 2012-12-21 | 2017-02-22 | 德卡产品有限公司 | Syringe pump system |
| CN106421978B (en) * | 2012-12-21 | 2020-03-24 | 德卡产品有限公司 | Syringe pump system |
| CN105339021A (en) * | 2013-03-19 | 2016-02-17 | 株式会社Jms | Syringe pump and syringe pump control method |
| CN105339021B (en) * | 2013-03-19 | 2018-05-29 | 株式会社Jms | The control method of micro-injection pump and micro-injection pump |
| CN103792276A (en) * | 2014-01-26 | 2014-05-14 | 山东百川同创能源有限公司 | Precise trace sampling device and method for liquid raw material |
| CN103792276B (en) * | 2014-01-26 | 2016-06-08 | 山东百川同创能源有限公司 | A kind of accurate two-dimensional deviT of liquid charging stock and sample injection method |
| CN109908435A (en) * | 2019-04-30 | 2019-06-21 | 江苏三和生物工程股份有限公司 | A kind of medical precise micro killer injecting pump |
| CN111120608A (en) * | 2019-12-24 | 2020-05-08 | 颀中科技（苏州）有限公司 | Half nut assembly |
| CN111120608B (en) * | 2019-12-24 | 2022-04-22 | 颀中科技（苏州）有限公司 | Half nut assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROVINCE YUSHENG MEDICAL TREATMENT EQUIPM Free format text: FORMER OWNER: LIN MEIJUAN Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: Zhejiang province221116 Yuhuan County Xuanmen Industrial Zone, 317608 Patentee after: Zhejiang Yusheng Medical Device Co., Ltd. Address before: No. 174 Dongmen Road, Chengguan Town, Zhejiang, Yuhuan County Province, China: 317608 Patentee before: Lin Meijuan |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20160208 |