CN2536814Y - Automatic micro-injector - Google Patents
Automatic micro-injector Download PDFInfo
- Publication number
- CN2536814Y CN2536814Y CN 01230285 CN01230285U CN2536814Y CN 2536814 Y CN2536814 Y CN 2536814Y CN 01230285 CN01230285 CN 01230285 CN 01230285 U CN01230285 U CN 01230285U CN 2536814 Y CN2536814 Y CN 2536814Y
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- CN
- China
- Prior art keywords
- injection tube
- water
- fixed
- liquid
- solenoid valve
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model refers to an improved injector used for extracting and injecting micro-liquid, which solves the problem that the extracting and injecting capacity is difficult to achieve micro-liter grade, and comprises a water inlet pipe, a water outlet pipe, a water pump, a solenoid valve, a base, an water outlet base, an injection tube, a water faucet, a sealing gasket, a compression nut, a motor, a water pipe and a control system. When extraction or injection is needed, the solenoid valve is open, and then the water pump extracts the liquid via the water inlet pipe and fills the liquid into the injection tube via the water pipe; the solenoid valve is closed, and then the motor drives the input gear to run and makes an output gear shaft and a sliding block slide on a leader, thus driving the cylinder rod to slide in the injection tube and changing the volume of the injection tube, where the vibration Delta V is the extracting and injecting capacity. The utility model has the advantages that the piston is saved; and the liquid capacity is controlled via controlling the range of the cylinder rod, thus simplifying processing and assembly and providing high-precision, fully automatic micro-liquid injector where the extracting and injecting capacity achieves micro-liter grade. The utility model can be used in the field of biochemical instruments, analytic instruments, and spectrum instruments.
Description
Technical field: the utility model belongs to liquid road mechanism, relates to the improvement to Micro-volume liquid absorption and injection injector.
Background technique: traditional injector as shown in Figure 1: it carries out the absorption and the injection of Micro-volume liquid, mainly comprises injection tube 1, piston 2 and piston rod 3.In order to reach the liquid of drawing and injecting denier, it is minimum that the internal diameter of injection tube and piston all will be done.Such mechanism is very high to processing request, for being connected between the sealing between piston and the injection tube and piston rod and the piston all requiring very high.
Summary of the invention: be difficult to reach the absorption of micro updating and the problem of injection volume for solving said mechanism, the utility model proposes a solution as shown in Figure 2: it comprises intake pipe, water pump, solenoid valve, base, outlet pipe, water outlet base, injection tube, water nozzle, sealing gasket, gland nut, motor, water pipe, control system, the correlation between each parts is: water pump, solenoid valve, injection tube bearing, injection tube bearing, motor cabinet, guide rod seat all are fixed on the base; Outlet pipe is fixed on the water outlet base, and together is fixed on the injection tube bearing with the water outlet base; Injection tube is fixed on the injection tube bearing, at the injection tube two ends sealing gasket is housed; Water nozzle is fixed on the injection tube bearing; Sealing gasket is fixed on the injection tube bearing with gland nut; Piston rod one end is fixed on the slide block, and the other end slides in injection tube and injection tube bearing; Slide block is fixed on the guide rod, and guide rod is fixed on the guide rod seat, and slide block slides on guide rod; Motor is fixed on the motor cabinet, and the input gear is fixed on the output gear shaft, and output gear shaft is fixed on the motor cabinet, and the output terminal of control system is connected with the input end of motor, solenoid valve.
Its basic principle is: when needs are drawn or injected, solenoid valve is open-minded, water pump extracts purified water by intake pipe and by water pipe purified water is filled in the injection tube, at this moment close solenoid valve, driven by motor input gear rotates, and input gear driven output gear shaft rotates, output gear shaft drives slide block and slides on guide rod, slide in injection tube thereby drive piston rod, therefore make the volume in the injection tube change
This variable quantity is: Δ V=d
2π L/4
Wherein: d---the diameter of piston rod
The displacement amount of L---piston rod
Variation delta V is exactly the absorption and the injection volume that will reach.
The utility model has been cancelled piston, and directly the stroke of control piston bar comes the controlling liquid amount, has solved the problem of the inaccessible micro updating amount of liquid of background technique, makes that processing and assembling are simple.The utility model provides a kind of precision height, absorption and injection volume can reach the full-automatic micro syringe of micro updating.The utility model can be used in fields such as various biochemical instruments, analytical instrument, optical spectrum instruments.
Description of drawings:
Fig. 1 is the structural representation of background technique
Fig. 2 is a structural front view of the present utility model
Embodiment such as Fig. 2 comprise: intake pipe (1), water pump (2), solenoid valve (3), base (4), outlet pipe (5), water outlet base (6), injection tube bearing (7), sealing gasket (8), injection tube (9), injection tube bearing (10), water nozzle (11), sealing gasket (12), gland nut (13), piston rod (14), slide block (15), motor (16), motor cabinet (17), output gear shaft (18), input gear (19), guide rod (20), guide rod seat (21), water pipe (22), control system (23).
Intake pipe (1), outlet pipe (5), water pipe (22) can adopt plastics or silicone tube; Water pump (2) adopts magnetic drive pump; Solenoid valve (3) adopts direct current or exchanges electrically-controlled valve; Base (4), gland nut (13), piston rod (14), slide block (15), motor cabinet (17), guide rod (20), guide rod seat (21) are formed by metal material processing; Sealing gasket (8), sealing gasket (12) are processed by nonmetallic material; Water outlet base (6), injection tube bearing (7), injection tube bearing (10), water nozzle (11), output gear shaft (18), input gear (19) can be processed by metallic material or nonmetallic material; Motor (16) adopts and exchanges or DC servo motor; Injection tube (9) can be processed by glass or stainless steel; Control system (23) can design according to actual needs, and control system (23) can be made up of computer and motor driver, and computer adopts 51 series monolithics, and motor driver can adopt the motor driver of SH-2H057M model.
Claims (1)
1, full-automatic micro syringe, include: comprise intake pipe (1), water pump (2), solenoid valve (3), base (4), outlet pipe (5), water outlet base (6), sealing gasket (8), injection tube (9), water nozzle (11), sealing gasket (12), gland nut (13), motor (16), water pipe (22), control system (23) is characterized in that: water pump (2), solenoid valve (3), injection tube bearing (7), injection tube bearing (10), motor cabinet (17), guide rod seat (20) all are fixed on the base (4); Outlet pipe (5) is fixed on the water outlet base (6), and together is fixed on the injection tube bearing (7) with the water outlet base; Injection tube (9) is fixed on injection tube bearing (7) and (10), at injection tube (9) two ends sealing gasket (8) is housed; Water nozzle (11) is fixed on injection tube bearing (10); Sealing gasket (12) is fixed on injection tube bearing (10) with gland nut (13); Piston rod (14) one ends are fixed on the slide block (15), and the other end slides in injection tube (9) and injection tube bearing (10); Slide block (15) is fixed on the guide rod (20), and guide rod (20) is fixed on the guide rod seat (21), and slide block (15) is gone up at guide rod (20) and slided; Motor (16) is fixed on the motor cabinet (17), and input gear (19) is fixed on the output gear shaft (18), and output gear shaft (18) is fixed on the motor cabinet (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230285 CN2536814Y (en) | 2001-08-10 | 2001-08-10 | Automatic micro-injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230285 CN2536814Y (en) | 2001-08-10 | 2001-08-10 | Automatic micro-injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2536814Y true CN2536814Y (en) | 2003-02-19 |
Family
ID=33644916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01230285 Expired - Fee Related CN2536814Y (en) | 2001-08-10 | 2001-08-10 | Automatic micro-injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2536814Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424561A (en) * | 2013-07-30 | 2013-12-04 | 北京众驰伟业科技发展有限公司 | Injection pump integrated automatic sample adding system |
| CN112058328A (en) * | 2020-08-11 | 2020-12-11 | 长沙仪秀兴智能科技有限公司 | Piston type liquid transferring gun capable of improving liquid transferring precision |
| CN112058329A (en) * | 2020-08-11 | 2020-12-11 | 长沙仪秀兴智能科技有限公司 | Piston type liquid-transfering gun with multiple discharge |
| CN112108198A (en) * | 2020-08-11 | 2020-12-22 | 长沙仪秀兴智能科技有限公司 | Double-discharge high-precision piston type liquid-transfering gun |
-
2001
- 2001-08-10 CN CN 01230285 patent/CN2536814Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424561A (en) * | 2013-07-30 | 2013-12-04 | 北京众驰伟业科技发展有限公司 | Injection pump integrated automatic sample adding system |
| CN112058328A (en) * | 2020-08-11 | 2020-12-11 | 长沙仪秀兴智能科技有限公司 | Piston type liquid transferring gun capable of improving liquid transferring precision |
| CN112058329A (en) * | 2020-08-11 | 2020-12-11 | 长沙仪秀兴智能科技有限公司 | Piston type liquid-transfering gun with multiple discharge |
| CN112108198A (en) * | 2020-08-11 | 2020-12-22 | 长沙仪秀兴智能科技有限公司 | Double-discharge high-precision piston type liquid-transfering gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |