CN107715933A - A kind of pair goes out rod-type continuous injecting apparatus - Google Patents
A kind of pair goes out rod-type continuous injecting apparatus Download PDFInfo
- Publication number
- CN107715933A CN107715933A CN201711030872.2A CN201711030872A CN107715933A CN 107715933 A CN107715933 A CN 107715933A CN 201711030872 A CN201711030872 A CN 201711030872A CN 107715933 A CN107715933 A CN 107715933A
- Authority
- CN
- China
- Prior art keywords
- check valve
- threeway
- cylinder barrel
- piston
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/0234—Repeating pipettes, i.e. for dispensing multiple doses from a single charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/0227—Details of motor drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/0237—Details of electronic control, e.g. relating to user interface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of pair goes out rod-type continuous injecting apparatus, and it is mainly：Cylinder barrel both ends set end cap, each end cap is provided with two perpendicular screws being connected with inner cavity of cylinder, a check valve is respectively set on each screw, and two check valve A, B for being above bore axis, two check valve is connected with upper threeway, threeway is connected with a container on this, and parenteral solution is filled in the container；And it is two check valve C, D to be located at below bore axis, it is connected with lower threeway, the lower threeway is connected with syringe needle.Piston corresponding with its internal diameter is provided with cylinder barrel, a piston rod is respectively set on the side face of piston ring, the end of wherein one piston rod is provided with the perpendicular connected cylindrical roller in one end, the free end of the roller is placed in the groove of cam, the groove and cam are in similar figures, and the camshaft is connected with servomotor spindle.The present invention realizes continuous automatic injection, improves operating efficiency, reduces the labor intensity of staff；Simple in construction, cost is low, easy to operate.
Description
Technical field
The present invention relates to a kind of micro flow unit, particularly injection device.
Background technology
With the continuous development of scientific technology, in biomedicine, chemical industry, in the research of MEMS, all relate to
The research of micro hole flow behavior, uses regular injection mostly now.Conventional injecting method is usually that a shot is complete
, it is necessary to be injected after sucking liquid again after liquid in syringe；Do not simply fail to realize and liquid is continuously provided, and the note having
To dismount, change after liquid injection in emitter cavity, spend time length, operating efficiency is low, while also add work
The working strength of personnel.
The content of the invention
It is an object of the invention to provide it is a kind of can continuously inject and operating efficiency is high, labor intensity is low it is double go out rod-type connect
Continuous injection device.
The scheme that the present invention is taken is specific as follows：
The invention mainly comprises：Cylinder barrel, piston, piston rod, end cap, check valve, container, roller, cam and servomotor.
Wherein, the both ends of cylindrical shape cylinder barrel set be flexibly connected with it and by cylinder body opening closure in annular seal space end cap, the end cap set with
The central through hole of cylinder barrel coaxial line, it is provided with the side face of each end cap perpendicular and using bore axis as symmetrical two spiral shells
Hole, two screw are connected with inner cavity of cylinder, and the axis of 4 screws in cylinder barrel both sides is in a plane for crossing bore axis
On.Respectively set a check valve on each screw, and above bore axis be that fluid can only be made to enter the two unidirectional of cylinder body
Valve A, B, fluid flows into container when preventing from discharging fluid, and two check valve is connected each via pipeline with upper threeway, threeway on this
Remaining interface is connected with a container, and parenteral solution is filled in the container；And it is that can only make fluid to be located at below bore axis
Two check valve C, the D to be gone out from cylinder barrel, prevent inhale fluid when fluid flow backwards from system, two check valve each via pipeline with
Lower threeway is connected, and the lower remaining interface of threeway is connected with syringe needle.Piston corresponding with its internal diameter, the piston two are provided with cylinder barrel
Respectively set a piston rod being coaxial therewith on end face, the both ends of two-piston bar both pass through the central through hole that respective corresponding end covers and
Outside end cap.The end of wherein one piston rod is provided with the perpendicular connected cylindrical roller in one end, the free end of the roller
It is placed in the groove of cam, the groove and cam are in similar figures.The free end peripheral hardware rolling bearing of best roller.The camshaft
It is connected with servomotor spindle.
The present invention the course of work approximately as：Stepper motor band moving cam rotates, and cam passes through roller urges piston rod
And coupled piston moves back and forth, the reciprocating motion of piston realizes the friendship of the two closed chamber volumes in left and right in cylinder barrel
For suction pressure fluid, realize that the continuous system for needed for provides fluid, it is achieved thereby that continuous injection.Stepper motor rotating speed is adjusted, can
With the size of control injection flow.
The present invention has the following advantages that compared with prior art：Using miniature double rod piston cylinder structures, by stepping electricity
Machine driving cam realizes continuous automatic injection, improves operating efficiency, reduces the labor intensity of staff；And also have
There is small volume, simple in construction, easy to operate, low discharge, low pulse, the characteristics of cost is low.
Brief description of the drawings
Fig. 1 is main view section simplified schematic diagram of the present invention.
Fig. 2 is the section simplified schematic diagram of check valve of the present invention.
Fig. 3 is three-dimensional installation diagram of the present invention.
In figure：1st, cam, 2, roller, 3, piston rod, 4, check valve C, 5, piston, 6, end cap, 7, check valve D, 8, unidirectional
Valve B, 9, cylinder barrel, 10, container, 11, check valve A, 12, upper threeway, 13, lower threeway, 14, servomotor, 15, spheroid, 16, bullet
Spring, 17, back-up ring, 18, valve body.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Shown in Fig. 1 and Fig. 3 it is double go out rod-type continuous injecting apparatus simplified schematic diagram in, the both ends of cylindrical shape cylinder barrel 9 are set
It is flexibly connected with it and the end cap 6 by the closure of cylinder body opening in annular seal space, the end cap is as broad as long cube, its 4 angles
A through hole with cylinder body coaxial line is respectively set, respectively has a screw rod to pass through in each hole, screw rod both ends are fastened by nut.The end cap
If the central through hole with cylinder barrel coaxial line, it is provided with the side face of each end cap perpendicular and using bore axis as symmetrical two
Individual screw, two screw are connected with inner cavity of cylinder, and the axis of 4 screws in cylinder barrel both sides crosses bore axis at one
In plane.A check valve is respectively set on each screw, and it is two check valve A11, check valve B8 to be located above bore axis, is somebody's turn to do
Two check valves are connected each via pipeline with upper threeway 12, and remaining interface of threeway is connected with a container 10 on this, the container
Inside fill parenteral solution；And it is two check valve C4, check valve D7 to be located at below bore axis, two check valve is each via pipeline
It is connected with lower threeway 13, the lower remaining interface of threeway is connected with syringe needle.Piston 5 corresponding with its internal diameter is provided with cylinder barrel, should
Respectively set a piston rod being coaxial therewith 3 on side face of piston ring, the both ends of two-piston bar are both passed through during respective corresponding end covers
Heart through hole and outside the end cap.The end of wherein one piston rod is provided with the perpendicular connected cylindrical roller 2 in one end, the roller
Free end be placed in the groove of cam, the groove and cam are in similar figures.The free end peripheral hardware rolling bearing of roller.It is described convex
Wheel shaft is connected with the main shaft of servomotor 14.
Shown in Fig. 2 it is double go out rod-type continuous injecting apparatus check valve simplified schematic diagram in, be provided with valve body 18 and pass through up and down
Logical central through hole, instrument hole is provided with above the through hole, the internal diameter of internal diameter for two sections and above below is less than following
Internal diameter, spheroid 15 is set in large diameter section, it is adjacent with the one end of spring 16, and the spring other end is placed on annular retaining ring 17, the gear
Circle is placed in valve body in corresponding annular groove, and the outer upper diameter of valve body is more than lower diameter, and the minor diameter in bottom is externally provided with
External screw thread corresponding with end cap screw.
Claims (2)
1. a kind of pair goes out rod-type continuous injecting apparatus, it is characterised in that：The both ends of cylindrical shape cylinder barrel, which are set, to be flexibly connected and incites somebody to action with it
The closure of cylinder body opening is in the end cap of annular seal space, and the end cap sets the central through hole with cylinder barrel coaxial line, on the side face of each end cap
Provided with perpendicular and using bore axis as symmetrical two screws, two screw is connected with inner cavity of cylinder, and cylinder barrel two
The axis of 4 screws in side is crossed in the plane of bore axis at one, a check valve is respectively set on each screw, and be located at cylinder barrel
That above axis is two check valve A, B that fluid can only be made to enter cylinder body, and two check valve is each via pipeline and upper threeway phase
Even, remaining interface of threeway is connected with a container on this, and parenteral solution is filled in the container；And it is below bore axis
Two check valve C, D of cylinder body can only be pushed fluid out, two check valve is connected each via pipeline with lower threeway, more than the lower threeway
Under interface be connected with syringe needle, is provided with piston corresponding with its internal diameter in cylinder barrel, respectively set on the side face of piston ring one it is same with it
The piston rod of axle, the both ends of two-piston bar both pass through the central through hole that respective corresponding end covers and are located at outside end cap, wherein one
The end of piston rod is provided with the perpendicular connected cylindrical roller in one end, and the free end of the roller is placed in the groove of cam, should
Groove and cam are in similar figures, and the camshaft is connected with servomotor spindle.
2. according to claim 1 pair goes out rod-type continuous injecting apparatus, it is characterised in that：The free end peripheral hardware of roller rolls
Bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030872.2A CN107715933A (en) | 2017-10-30 | 2017-10-30 | A kind of pair goes out rod-type continuous injecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030872.2A CN107715933A (en) | 2017-10-30 | 2017-10-30 | A kind of pair goes out rod-type continuous injecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107715933A true CN107715933A (en) | 2018-02-23 |
Family
ID=61202231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711030872.2A Pending CN107715933A (en) | 2017-10-30 | 2017-10-30 | A kind of pair goes out rod-type continuous injecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107715933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621074A (en) * | 2019-01-23 | 2019-04-16 | 成都大学附属医院 | Anti- mixed water injection medicine channel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625132Y (en) * | 2003-06-18 | 2004-07-14 | 王扬昇 | Continuous charging hydraulic injection gun |
| CN101920547A (en) * | 2010-07-09 | 2010-12-22 | 华南理工大学 | Screw-free plastic disc type rotary injection method and device |
| CN105188803A (en) * | 2013-03-11 | 2015-12-23 | 波士顿科学有限公司 | Double action infusion system |
| CN205433991U (en) * | 2015-11-22 | 2016-08-10 | 晋中职业技术学院 | Animal doctor is with animal continuous injection ware |
| CN207430331U (en) * | 2017-10-30 | 2018-06-01 | 燕山大学 | A kind of pair goes out rod-type continuous injecting apparatus |
-
2017
- 2017-10-30 CN CN201711030872.2A patent/CN107715933A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625132Y (en) * | 2003-06-18 | 2004-07-14 | 王扬昇 | Continuous charging hydraulic injection gun |
| CN101920547A (en) * | 2010-07-09 | 2010-12-22 | 华南理工大学 | Screw-free plastic disc type rotary injection method and device |
| CN105188803A (en) * | 2013-03-11 | 2015-12-23 | 波士顿科学有限公司 | Double action infusion system |
| CN205433991U (en) * | 2015-11-22 | 2016-08-10 | 晋中职业技术学院 | Animal doctor is with animal continuous injection ware |
| CN207430331U (en) * | 2017-10-30 | 2018-06-01 | 燕山大学 | A kind of pair goes out rod-type continuous injecting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621074A (en) * | 2019-01-23 | 2019-04-16 | 成都大学附属医院 | Anti- mixed water injection medicine channel |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |