CN207718191U - A kind of trace liquid quantitative determines the control system of journey injection - Google Patents
A kind of trace liquid quantitative determines the control system of journey injection Download PDFInfo
- Publication number
- CN207718191U CN207718191U CN201820028347.0U CN201820028347U CN207718191U CN 207718191 U CN207718191 U CN 207718191U CN 201820028347 U CN201820028347 U CN 201820028347U CN 207718191 U CN207718191 U CN 207718191U
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- China
- Prior art keywords
- pedestal
- stepper motor
- movable push
- injection
- spiral micrometer
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Abstract
A kind of trace liquid quantitative determines the control system of journey injection, including movable push, pedestal, feed screw nut, leading screw, harmonic speed reducer, stepper motor, spiral micrometer bar, microcontroller, display screen and fixing plate clamp, movable push is slidably connected with pedestal, push the injection piston flexible in syringe intracavity by reciprocatingly sliding for movable push, fixing plate clamp is on pedestal, lug for stopping needle tubing open-mouth, feed screw nut is in movable push, leading screw is on harmonic speed reducer output shaft, and it is threadedly coupled with feed screw nut, the input shaft of harmonic speed reducer and the shaft of stepper motor connect, stepper motor and spiral micrometer bar are installed on pedestal, the micrometric screw of spiral micrometer bar is connect with movable push, microcontroller and display screen are on pedestal, stepper motor, spiral micrometer bar and display screen and monolithic mechatronics.The utility model is simple in structure, can carry out accurately quantitatively determining process control to liquid, the liquid of discharge can be as accurate as only several micro- milliliters.
Description
Technical field
It is especially the control system that a kind of trace liquid quantitative determines journey injection the utility model is related to liquid injection field
System.
Background technology
In fields injecting fluids such as biology, medical treatment, chemical industry, it is sometimes desirable to liquid carry out it is accurate, micro, uniform, hold
Continuous injection.Traditional method for implanting is generally voluntarily injected by staff, due to the self-technique and warp of different operating personnel
Test and have differences, it is difficult to ensure that when injection liquid quantitative and even, precision is also difficult to reach small and arrives several micro- milliliters, when error slightly
When big, test result is just will have a direct impact on, increases operation difficulty.
Utility model content
The technical problems to be solved in the utility model is to provide the control system that a kind of trace liquid quantitative determines journey injection,
Its is simple in structure, easy to operate, can carry out accurately quantitatively determining process control to liquid, fully meet work requirements.
The technical solution of the utility model is to provide a kind of a kind of trace liquid quantitative having following structure and determines journey
The control system of injection, including movable push, pedestal, feed screw nut, leading screw, harmonic speed reducer, stepper motor, spiral micrometer
Bar, microcontroller, display screen and fixing plate clamp, the movable push and pedestal slidable connection, pass through the reciprocal cunning of movable push
It moves to push injection piston flexible in syringe intracavity, the fixing plate clamp is fixedly mounted on pedestal, for stopping needle tubing opening
The lug of both sides, the feed screw nut in the movable push, the leading screw on the output shaft of harmonic speed reducer, and with silk
Thick stick nut thread connects, and the input shaft of the harmonic speed reducer and the shaft of stepper motor connect, the stepper motor and spiral
Micrometer bar is installed on pedestal, and the micrometric screw of spiral micrometer bar is connect with movable push, the microcontroller and display screen dress
On pedestal, the stepper motor, spiral micrometer bar and display screen with monolithic mechatronics.
A kind of trace liquid quantitative described in the utility model determines the control system of journey injection, wherein the movable push
Refer to that described pedestal one end is equipped with side plate with pedestal slidable connection, guide rod is housed between the side plate and fixing plate clamp, is led
It is parallel to the axis of bar and the axis of injection piston, guide sleeve is cased on guide rod, the guide sleeve is in movable push.
A kind of trace liquid quantitative described in the utility model determines the control system of journey injection, wherein the movable push
It is equipped with U-shaped card slot, the injection piston is not stuck in needle tubing connecting pin in U-shaped card slot.
After using the above structure, compared with prior art, a kind of trace liquid quantitative of the utility model determines the control of journey injection
System processed has the following advantages：
(1) parts for including are less, and corresponding construction is simple and convenient to operate；
(2) single-chip microcomputer control technology is used, it is at low cost, it is ensured that the reliability and stability of system；
(3) using stepper motor as power source, stepper motor has the advantageous characteristic for moment starting and rapidly stopping, controlling
Can be good, torque is stablized, and error is small, and error does not accumulate, easy to implement quantitatively to determine process control；
(4) a harmonic speed reducer is increased in the output end of stepper motor so that the further milligram ammonia of angular displacement；
(5) spiral micrometer bar can accurately control small angular displacement, to generate micro straight-line feed amount.
Therefore, when staff uses the utility model, it is accurate quantitative fixed to be carried out to the liquid in syringe
Process control fully meets work requirements.
Description of the drawings
Fig. 1 is main view broken section when a kind of trace liquid quantitative of the utility model determines the control system use that journey is injected
Structural schematic diagram.
Specific implementation mode
The control of journey injection is determined a kind of trace liquid quantitative of the utility model with reference to the accompanying drawings and detailed description
System is described in further detail：
As shown in Figure 1, in this embodiment, a kind of trace liquid quantitative of the utility model determines the control of journey injection
System, including movable push 10, pedestal 18, feed screw nut 19, leading screw 17, harmonic speed reducer 15, stepper motor 14, spiral micrometer
Bar 16, microcontroller 13, display screen 12 and fixing plate clamp 22.Fixing plate clamp 22 is mounted on the right end (right sides Fig. 1 of pedestal 18 by screw
End), the lug 310 for stopping the open both sides of needle tubing 31, the left end (Fig. 1 left ends) of pedestal 18 is equipped with side plate by screw
20, two guide rods 11, the axis of guide rod 11 and the axis phase of injection piston 30 are housed between side plate 20 and fixing plate clamp 22
It is parallel, it is cased with guide sleeve 21 on two guide rods 11, guide sleeve 21 is mounted in movable push 10, when work, passes through movable push
10 left and right reciprocatingly slides to push injection piston 30 flexible in 31 inner cavity of needle tubing, so realize in needle tubing 31 discharge of liquid with
Sucking.Feed screw nut 19 be mounted on movable push 10 on, leading screw 17 be located at the lower section of guide rod 11 and with 19 screw thread of feed screw nut
The left end of connection, leading screw 17 is mounted on by bearing on side plate 20, and the right end of leading screw 17 is mounted on the output of harmonic speed reducer 15
On axis, the input shaft of harmonic speed reducer 15 is connect with the shaft of stepper motor 14.Stepper motor 14 and spiral micrometer bar 16 are pacified
On pedestal 18, the micrometric screw of spiral micrometer bar 16 is connect with movable push 10, and microcontroller 13 and display screen 12 are mounted in base
On seat 18, stepper motor 14, spiral micrometer bar 16 and display screen 12 are electrically connected with microcontroller 13.
For the ease of picking and placeing for syringe, the utility model offers U-shaped card slot 101 on the top surface of movable push 10,
In use, directly injection piston 30 is not stuck in 31 connecting pin of needle tubing in U-shaped card slot 101.
The utility model uses single-chip microcomputer control technology, to the pulse signal of stepper motor drive using microcontroller thin
Point, by the intrinsic stepper angle fraction of stepper motor at several small steps, that is, minimum angular displacement is generated, realizes high accuracy positioning.
In addition, also increasing a miniature harmonic speed reducer in the output end of stepper motor so that the further milligram ammonia of angular displacement,
It can be accurately controlled micro angular displacement amount, to realize micro straight-line feed amount；Reach accurate control by spiral micrometer bar
The purpose of plunger processed makes the small micro injection of liquid, completes the feeding injection that micro-amounts of liquids quantitatively determines journey, generated error is almost
It is zero.
The utility model be mainly used in biology, medical treatment, chemical industry etc. trace liquid quantitative determine the injection of process control,
The liquid being once discharged can be as accurate as only several micro- milliliters, moreover it is possible to carry out accurate quantified controlling.
When normal work, microcontroller 13, which sends out control pulse, makes stepper motor 14 rotate, and stepper motor 14 is subtracted by harmonic wave
Fast device 15 drives leading screw 17 to rotate, and under the action of feed screw nut 19, movable push 10 moves along a straight line, to push injection piston
30 slide straightly, by the sequence for changing pulse, you can the rotation direction for changing stepper motor 14, to realize liquid in needle tubing 31
The discharge and sucking of body.As soon as microcontroller 13 often generates a pulse signal, the shaft of driving circuit Driving Stepping Motor 14 according to
The direction of setting rotates a fixed step angle (angular displacement), angular displacement is controlled by controlling pulse number, to reach
The purpose of accurate positionin.So that step angle more stablizes milligram ammonia, step angle (angular displacement) meeting of generation exists harmonic speed reducer 15
Real-time display on display screen 12.In addition, driving subdivision can also be carried out to pulse signal, by microcontroller 13 by stepper motor 14
Intrinsic stepper angle fraction generates minimum angular displacement at several small steps, and then reach the control for quantitatively determining journey；Spiral is surveyed
There is the sensor of measurement distance in microbot 16, can record the amount of movement of micrometric screw, then feed back to microcontroller 13 and calculate liquid
The discharge rate of body, and shown in real time by display screen 12.
In this embodiment, the injection piston 30, needle tubing 31 and syringe needle collectively constitute syringe, are city
Sell product；Microcontroller 13, display screen 12, stepper motor 14, harmonic speed reducer 15 and the spiral micrometer bar 16 is also commercially available
Product, therefore its concrete structure does not repeat herein.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made, should all fall into the scope of protection of the utility model.
Claims (3)
1. a kind of trace liquid quantitative determines the control system of journey injection, it is characterised in that：Including movable push (10), pedestal
(18), feed screw nut (19), leading screw (17), harmonic speed reducer (15), stepper motor (14), spiral micrometer bar (16), microcontroller
(13), display screen (12) and fixing plate clamp (22), the movable push (10) and pedestal (18) slidable connection, are pushed away by activity
Plate (10) reciprocatingly slides to push injection piston (30) flexible in needle tubing (31) inner cavity, and the fixing plate clamp (22) is fixedly mounted
On pedestal (18), the lug (310) for stopping the open both sides of needle tubing (31), the feed screw nut (19) is mounted in movable push
(10) on, the leading screw (17) is threadedly coupled on the output shaft of harmonic speed reducer (15) with feed screw nut (19), described
The input shaft of harmonic speed reducer (15) is connect with the shaft of stepper motor (14), the stepper motor (14) and spiral micrometer bar
(16) it is installed on pedestal (18), the micrometric screw of spiral micrometer bar (16) is connect with movable push (10), the microcontroller
(13) and display screen (12) is on pedestal (18), and the stepper motor (14), spiral micrometer bar (16) and display screen (12) are equal
It is electrically connected with microcontroller (13).
2. a kind of trace liquid quantitative according to claim 1 determines the control system of journey injection, it is characterised in that：The work
Dynamic push plate (10) refers to that described pedestal (18) one end is equipped with side plate (20), the side plate (20) with pedestal (18) slidable connection
Guide rod (11) is housed between fixing plate clamp (22), the axis of guide rod (11) is parallel with the axis of injection piston (30),
Guide sleeve (21) is cased on guide rod (11), the guide sleeve (21) is in movable push (10).
3. a kind of trace liquid quantitative according to claim 2 determines the control system of journey injection, it is characterised in that：The work
Dynamic push plate (10) is equipped with U-shaped card slot (101), and the injection piston (30) is not stuck in U-shaped card slot with needle tubing (31) connecting pin
(101) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028347.0U CN207718191U (en) | 2018-01-08 | 2018-01-08 | A kind of trace liquid quantitative determines the control system of journey injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028347.0U CN207718191U (en) | 2018-01-08 | 2018-01-08 | A kind of trace liquid quantitative determines the control system of journey injection |
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| Publication Number | Publication Date |
|---|---|
| CN207718191U true CN207718191U (en) | 2018-08-10 |
Family
ID=63055054
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820028347.0U Expired - Fee Related CN207718191U (en) | 2018-01-08 | 2018-01-08 | A kind of trace liquid quantitative determines the control system of journey injection |
Country Status (1)
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| CN (1) | CN207718191U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038745A (en) * | 2019-03-29 | 2019-07-23 | 江汉大学 | The device and method of drop subdivision |
| CN110788874A (en) * | 2019-10-21 | 2020-02-14 | 中国美术学院 | Manipulator for controlling clamping force to measure distance between clamping points |
| CN111420166A (en) * | 2020-04-26 | 2020-07-17 | 河南科技大学 | Micro-injection pump |
| CN114869586A (en) * | 2022-05-18 | 2022-08-09 | 中国科学院苏州生物医学工程技术研究所 | High-precision retina injection device |
-
2018
- 2018-01-08 CN CN201820028347.0U patent/CN207718191U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038745A (en) * | 2019-03-29 | 2019-07-23 | 江汉大学 | The device and method of drop subdivision |
| CN110038745B (en) * | 2019-03-29 | 2024-05-14 | 江汉大学 | Device and method for droplet subdivision |
| CN110788874A (en) * | 2019-10-21 | 2020-02-14 | 中国美术学院 | Manipulator for controlling clamping force to measure distance between clamping points |
| CN111420166A (en) * | 2020-04-26 | 2020-07-17 | 河南科技大学 | Micro-injection pump |
| CN111420166B (en) * | 2020-04-26 | 2022-03-11 | 河南科技大学 | Micro-injection pump |
| CN114869586A (en) * | 2022-05-18 | 2022-08-09 | 中国科学院苏州生物医学工程技术研究所 | High-precision retina injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191011 Address after: Room 310 and 311, building 1, science and technology business incubator, high tech Zone, Huainan City, Anhui Province Patentee after: Anhui Puyun Information Technology Co., Ltd. Address before: 232001 Chaoyang Garden 5-705, Chaoyang West Road, Tian Jia An District, Huainan, Anhui Patentee before: Bai Zhi Qing |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20200108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |