CN202404080U - Continuous trace fluid infusion instrument - Google Patents
Continuous trace fluid infusion instrument Download PDFInfo
- Publication number
- CN202404080U CN202404080U CN201220011335XU CN201220011335U CN202404080U CN 202404080 U CN202404080 U CN 202404080U CN 201220011335X U CN201220011335X U CN 201220011335XU CN 201220011335 U CN201220011335 U CN 201220011335U CN 202404080 U CN202404080 U CN 202404080U
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- index plate
- syringe
- equilibriums
- rotating unit
- cylindrical shell
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- Withdrawn - After Issue
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Abstract
The utility model relates to a fluid sampling apparatus, and discloses a continuous trace fluid infusion instrument. The continuous trace fluid infusion instrument provided by the utility model comprises an injector and an injector pushing mechanism. The injector pushing mechanism comprises a barrel, a lead screw arranged in the barrel, a graduated disk with a hollow chamber, and a graduated disk rotating unit; one end of the lead screw contacts against a pushing rod of the injector while the other end thereof is in threaded connection with the graduated disk rotating unit, rotation of the graduated disk rotating unit drives the lead screw to move along own axial direction while driving the graduated disk to move, thus, the injector is pushed. The graduated disk rotates one round to drive the lead screw to move 0.6mm along own axial direction. The continuous trace fluid infusion instrument can accurately regulate the pushing amount of the injector through the threaded connection between the lead screw and the graduated disk rotating unit, such structure is simple, and can be used for a standard high-accuracy injector, so that cost is saved; moreover, an locating ring with multiple evenly divided scales is used, and the drug pushing amount is suitable for a wider range.
Description
Technical field
The utility model relates to a kind of fluid sampling device, particularly relates to a kind of drop method experiment of insect biologicall test and continuous micro-drop appearance that biochemical test is measured liquid of being used for.
Background technology
Trace drop appearance is accurate micro-giver; Can carry out dosing control to testing the required object that applies medicine accurately; Trace drop appearance be because its accurate, meticulous characteristics can be widely used in fields such as chemical industry, oil, agricultural, agricultural chemicals, forestry, ecology, in the drop method experiment of the insect biologicall test of farming, forestry, is indispensable instrument and equipment usually.Existing drop appearance generally comprises syringe and syringe propulsion plant; The principle of this syringe propulsion plant is identical with milscale; Come pushing syringe through rotating milscale, the medicament that is contained in the syringe is extruded quantitatively, be used for the drop method experiment of insect biologicall test.
Because it is higher in the experiment of the drop method of insect biologicall test to the amount precision prescribed of medicament; And common milscale thrust unit can not be complementary with the high precision syringe of standard; Need the syringe of customization separately or from the special high precision syringe of foreign procurement; The syringe cost is very high, has caused the experiment fees burden of medium and small sized enterprises and institutes.
The utility model content
The technical matters that (one) will solve
The technical matters that the utility model will solve is how a kind of continuous micro-drop appearance that is applicable to the high precision syringe of standard is provided, to reduce cost.
(2) technical scheme
In order to solve the problems of the technologies described above; The utility model provides a kind of continuous micro-drop appearance; Comprise syringe and syringe propulsive mechanism, said syringe propulsive mechanism comprises cylindrical shell, be arranged on the screw mandrel of barrel and have the index plate and the index plate rotating unit of hollow chamber; One end of said screw mandrel props up the push rod of said syringe; The other end adopts with said index plate rotating unit and is threaded; Said screw mandrel axially on have the first groove guide rail, said cylindrical shell is provided with first register pin and props up the said first groove guide rail, with the rotation of restriction screw mandrel; Said index plate rotating unit drives index plate and rotates, and makes that simultaneously screw mandrel moves along its axis, and then promotes the push rod of said syringe.
Wherein, to rotate the displacement that a circle makes screw mandrel move along its axis be 0.6mm for said index plate.
Wherein, said index plate rotating unit comprises handwheel, is separately positioned on index plate both sides and first stop that is fixedly connected with index plate and second stop; The threaded connection place of said index plate rotating unit and said screw mandrel is arranged in first stop, and said first stop is positioned at the side near syringe, and its other end props up the inboard of said cylindrical shell; The other end of said second stop is fixedly connected with said handwheel.
Wherein, Said index plate has the locating ring of the different five equilibriums of many groups; Said locating ring carries out five equilibrium through pilot hole; Said cylindrical shell is provided with second register pin of adjustable positions, and the bottom of said second register pin has flexible member, and said second register pin is supporting the position of said pilot hole to distinguish that index plate rotates.
Wherein, said index plate has the locating ring of 5 groups of different five equilibriums.
Wherein, said locating ring is 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums or 40 five equilibriums.
Wherein, The circumference of said cylindrical shell is provided with positioning disk; Said positioning disk has through hole; Be provided with connecting rod in the said through hole, said connecting rod axially on have the second groove guide rail, the through hole of said positioning disk is provided with the rotation that the 4th register pin that the said second groove guide rail is complementary directly makes progress with limiting rod; One end of said connecting rod is provided with steady arm, and this steady arm has the pin-and-hole that is complementary with second register pin, and said flexible member is arranged in the pin-and-hole.
Wherein, also comprise the syringe detent mechanism, an end of said syringe detent mechanism has draw-in groove, and the other end is fixed on the cylindrical shell, and the body of said syringe is installed on the said draw-in groove.
Wherein, the position that contacts of the body of said draw-in groove and syringe is provided with liner.
Wherein, also comprise a base, said cylindrical shell is fixedly mounted on the said base.
(3) beneficial effect
A kind of continuous micro-drop appearance that technique scheme provides can accurately be regulated the push-in stroke of syringe through being threaded between screw mandrel and the index plate rotating unit, and this is simple in structure, can supply the high precision syringe of standard to use, and has practiced thrift cost; Further, adopt the locating ring of many five equilibriums, make that the medicament push-in stroke scope of application is bigger.
Description of drawings
Fig. 1 is the front view of the continuous micro-drop appearance of the utility model;
Fig. 2 is the side view of the continuous micro-drop appearance of the utility model;
Fig. 3 is the structural representation of the screw mandrel of the utility model;
Fig. 4 is the structural representation of the index plate of the utility model;
Fig. 5 is the structural representation of the connecting rod of the utility model.
Wherein, 1, syringe; 2, syringe propulsive mechanism; 3, syringe detent mechanism; 4, base; 1-1, push rod; 2-10, cylindrical shell; 2-11, first register pin; 2-12, second register pin; 2-13, flexible member; 2-14, positioning disk; 2-15, connecting rod; 2-16, the second groove guide rail; 2-17, the 4th register pin; 2-18, steady arm; 2-20, screw mandrel; 2-21, the first groove guide rail; 2-22, external thread; 2-30, index plate; 2-31, locating ring; 2-32, pilot hole; 2-40, index plate rotating unit; 2-41, handwheel; 2-42, first stop; 2-43, second stop; 2-50, cylinder cover; 3-1, draw-in groove; 3-2, the 3rd register pin; 3-3, pad.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Like Fig. 1; A kind of continuous micro-drop appearance; Comprise syringe 1 and syringe propulsive mechanism 2, this syringe propulsive mechanism 2 comprises cylindrical shell 2-10, be arranged on the inner screw mandrel 2-20 of cylindrical shell 2-10 and have the index plate 2-30 and the index plate rotating unit 2-40 of hollow chamber.The end of screw mandrel 2-20 props up the push rod 1-1 of syringe 1; The other end adopts with index plate rotating unit 2-40 and is threaded; The pitch of this screw thread can accurately be regulated; Its concrete structure is: like Fig. 3, leading screw 2-20 is provided with external thread 2-22, is provided with the internal thread that is complementary with this external thread 2-22 in the index plate rotating unit 2-40.Screw mandrel 2-20 axially on have the first groove guide rail 2-21, cylindrical shell 2-10 is provided with the first register pin 2-11 and props up the first groove guide rail 2-21, because the existence of the first register pin 2-11 and the first groove guide rail 2-21 has limited the rotation that screw mandrel 2-20 directly makes progress.When index plate rotating unit 2-40 drives index plate 2-30 rotation, drive screw mandrel 2-20 and move along its axis, and then the push rod 1-1 of pushing syringe 1.But continuous micro-drop appearance precise design index plate 2-30 a rotates circle the makes displacement that screw mandrel 2-20 moves along its axis that technique scheme provided; Simple in structure, cost is lower, machining precision is high; Requirement according to the reality use; Pitch between external thread 2-22 that this displacement can be through regulating screw mandrel 2-20 and the internal thread of index plate rotating unit 2-40 is regulated; Present embodiment is used for the drop method experiment of insect biologicall test; This displacement is preferably 0.6mm, and this continuous micro-drop appearance is applicable to the existing high precision syringe that is used for the standard of insect biologicall test experiment, and makes the medicament push-in stroke of syringe 1 satisfy the requirement of the accurate quantification of the insect biologicall test experiment dosage of drug.
The index plate rotating unit 2-40 of present embodiment comprises handwheel 2-41, is separately positioned on index plate 2-30 both sides and the first stop 2-42 that is fixedly connected with index plate 2-30 and the second stop 2-43.Wherein, The threaded connection place of index plate rotating unit 2-40 and screw mandrel 2-20 is arranged on the inside of the first stop 2-42; The first stop 2-42 is positioned at the side near syringe 1, and the other end of this first stop 2-42 props up the inboard of cylindrical shell 2-10, with restriction index plate rotating unit 2-40 moving in the axial direction; The other end of the second stop 2-43 is fixedly connected with handwheel 2-41; This handwheel 2-41 is positioned at the outside of cylindrical shell 2-10, and the second stop 2-43 is positioned at the inside of cylindrical shell 2-10, and the end that cylindrical shell 2-10 is positioned at the second stop 2-43 is provided with the cylinder cover 2-50 that connects through screw-nut.Rotate handwheel 2-41 and can drive index plate 2-30 rotation, and then make screw mandrel 2-20 move along its axis the also push rod 1-1 of pushing syringe 1.
In order to make this continuous micro-drop appearance be applicable to that the experiment of different pharmaceutical quantities uses; The index plate 2-30 of present embodiment has the locating ring 2-31 of the different five equilibriums of many groups; Like Fig. 4, this locating ring 2-31 carries out five equilibrium through pilot hole 2-32, and cylindrical shell 2-10 is provided with the second register pin 2-12 of adjustable positions; The bottom of this second register pin 2-12 has flexible member 2-13 and supports; According to selected locating ring 2-31, the position of regulating the second register pin 2-12 makes it support pilot hole 2-32, with the displacement of distinguishing that index plate 2-30 rotates.The second register pin 2-12 is moved on the pilot hole 2-32 of locating ring 2-31 of suitable five equilibrium; Rotate handwheel 2-41 and drive index plate 2-30 rotation; Under the effect of flexible member 2-13; The second register pin 2-12 can jump to another one pilot hole 2-32 from a pilot hole 2-32 when index plate 2-30 rotates, when hearing that a trickle fastening sound just can judge this second register pin 2-12 and arrive in the pilot hole 2-32.
Like Fig. 4, group number and the isodisperse of index plate 2-30 can be decided according to real needs, and preferred design proposal is: can establish five groups of locating ring 2-31, every group of locating ring 2-31 is respectively 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums and 40 five equilibriums; Index plate 2-30 also can establish one group of locating ring 2-31, and wherein the locating ring 2-31 with 5 five equilibriums is good, and the locating ring 2-31 of 5 five equilibriums is fit to people's manual manipulation more and more accurately obtains the push-in stroke of medicament.
Like Fig. 1 and Fig. 5; The circumference of cylindrical shell 2-10 is provided with positioning disk 2-14, and positioning disk 2-14 has through hole, is provided with connecting rod 2-15 in the through hole; Connecting rod 2-15 axially on have the second groove guide rail 2-16; The through hole of positioning disk 2-14 is provided with the 4th register pin 2-17 that is complementary with the second groove guide rail 2-16, and like Fig. 2, the 4th register pin 2-17 has limited the rotation that connecting rod 2-15 directly makes progress; The end of connecting rod 2-15 is provided with steady arm 2-18; This steady arm 2-18 has the pin-and-hole that is complementary with the second register pin 2-12, and above-mentioned flexible member 2-13 is located at the bottom of pin-and-hole, and the second register pin 2-12 is installed in this pin-and-hole; Wherein, flexible member 2-13 can be spring.
At this continuous micro-drop appearance in use; The mode that can adopt the staff that is convenient for carrying to hold with a firm grip is perhaps in order more stably to advance syringe 1 to obtain accurate more medicine push-in stroke, with the error that prevents to be caused by manual intervention; Can set up a base 4; Like Fig. 1 and Fig. 2, open a base mounting hole in the lower end of the positioning disk 2-14 of cylindrical shell 2-10 periphery, through connecting link cylindrical shell 2-10 is fixedly mounted on the base 4.
Present embodiment also comprises syringe detent mechanism 3; Like Fig. 1; One end of this syringe detent mechanism 3 has draw-in groove 3-1, and the other end is fixed on the cylindrical shell 2-10, and the body of syringe 1 is installed on the draw-in groove 3-1; Draw-in groove 3-1 is provided with the 3rd register pin 3-2, and the body of syringe 1 is fixed on the draw-in groove 3-1 through the 3rd register pin 3-2.Body for fear of syringe 1 is damaged, and is provided with liner 3-3 at the position that the body of draw-in groove 3-1 and syringe 1 contacts and protects, and wherein, this pad 3-3 can be cushion rubber.
Present embodiment is that 1000 microlitres, medicament body length are that the high precision syringe of the standard of 6cm is an example to select pharmaceutical quantities; And the displacement that index plate 2-30 rotation one circle makes screw mandrel 2-20 move along its axis is 0.6mm; 0.3,0.12,0.06,0.03,0.015mm adopts the locating ring 2-31 of 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums and 40 five equilibriums make to rotate its displacement that advances respectively of five equilibrium to be:; The liquid volume of pushing out respectively is: 5,2,1,0.5,0.25 microlitre meets the requirement that pharmaceutical quantities in the drop method experiment of insect biologicall test is wanted accurate quantification.When the standard high precision syringe of selecting different capabilities for use, during like 100 microlitres, 500 microlitres, 1000 microlitres, 5000 microlitres or 10000 microlitres, the liquid volume that can push out respectively enlarges or dwindles according to syringe capacity ratio and gets final product.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (10)
1. a continuous micro-drop appearance comprises syringe and syringe propulsive mechanism, it is characterized in that, said syringe propulsive mechanism comprises cylindrical shell, be arranged on the screw mandrel of barrel and have the index plate and the index plate rotating unit of hollow chamber; One end of said screw mandrel props up the push rod of said syringe; The other end adopts with said index plate rotating unit and is threaded; Said screw mandrel axially on have the first groove guide rail, said cylindrical shell is provided with first register pin and props up the said first groove guide rail, with the rotation of restriction screw mandrel; Said index plate rotating unit drives index plate and rotates, and makes that simultaneously screw mandrel moves along its axis, and then promotes the push rod of said syringe.
2. continuous micro-drop appearance as claimed in claim 1 is characterized in that, the displacement that said index plate rotation one circle makes screw mandrel move along its axis is 0.6mm.
3. continuous micro-drop appearance as claimed in claim 1 is characterized in that, said index plate rotating unit comprises handwheel, is separately positioned on index plate both sides and first stop that is fixedly connected with index plate and second stop; The threaded connection place of said index plate rotating unit and said screw mandrel is arranged in first stop, and said first stop is positioned at the side near syringe, and its other end props up the inboard of said cylindrical shell; The other end of said second stop is fixedly connected with said handwheel.
4. continuous micro-drop appearance as claimed in claim 1; It is characterized in that; Said index plate has the locating ring of the different five equilibriums of many groups, and said locating ring carries out five equilibrium through pilot hole, and said cylindrical shell is provided with second register pin of adjustable positions; The bottom of said second register pin has flexible member, and said second register pin is supporting the position of said pilot hole to distinguish that index plate rotates.
5. continuous micro-drop appearance as claimed in claim 4 is characterized in that, said index plate has the locating ring of 5 groups of different five equilibriums.
6. continuous micro-drop appearance as claimed in claim 4 is characterized in that, said locating ring is 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums or 40 five equilibriums.
7. continuous micro-drop appearance as claimed in claim 4; It is characterized in that; The circumference of said cylindrical shell is provided with positioning disk, and said positioning disk has through hole, is provided with connecting rod in the said through hole; Said connecting rod axially on have the second groove guide rail, the through hole of said positioning disk is provided with the rotation that the 4th register pin that is complementary with the said second groove guide rail directly makes progress with limiting rod; One end of said connecting rod is provided with steady arm, and this steady arm has the pin-and-hole that is complementary with second register pin, and said flexible member is arranged in the pin-and-hole.
8. continuous micro-drop appearance as claimed in claim 1 is characterized in that also comprise the syringe detent mechanism, an end of said syringe detent mechanism has draw-in groove, and the other end is fixed on the cylindrical shell, and the body of said syringe is installed on the said draw-in groove.
9. continuous micro-drop appearance as claimed in claim 8 is characterized in that the position that the body of said draw-in groove and syringe contacts is provided with liner.
10. continuous micro-drop appearance as claimed in claim 1 is characterized in that also comprise a base, said cylindrical shell is fixedly mounted on the said base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011335XU CN202404080U (en) | 2012-01-11 | 2012-01-11 | Continuous trace fluid infusion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011335XU CN202404080U (en) | 2012-01-11 | 2012-01-11 | Continuous trace fluid infusion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404080U true CN202404080U (en) | 2012-08-29 |
Family
ID=46701720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220011335XU Withdrawn - After Issue CN202404080U (en) | 2012-01-11 | 2012-01-11 | Continuous trace fluid infusion instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102526839A (en) * | 2012-01-11 | 2012-07-04 | 中国疾病预防控制中心传染病预防控制所 | Continuous micro intravenous drip instrument |
| CN104374869A (en) * | 2014-12-03 | 2015-02-25 | 上海仪电科学仪器股份有限公司 | Sample injector for solid moisture content measurement and application method of sample injector |
-
2012
- 2012-01-11 CN CN201220011335XU patent/CN202404080U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102526839A (en) * | 2012-01-11 | 2012-07-04 | 中国疾病预防控制中心传染病预防控制所 | Continuous micro intravenous drip instrument |
| CN104374869A (en) * | 2014-12-03 | 2015-02-25 | 上海仪电科学仪器股份有限公司 | Sample injector for solid moisture content measurement and application method of sample injector |
| CN104374869B (en) * | 2014-12-03 | 2016-08-24 | 上海仪电科学仪器股份有限公司 | A kind of injector for solid water content measuring and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20130703 |
|
| RGAV | Abandon patent right to avoid regrant |