CN202221940U - Swing-preventing motor of high-precision electric pipette - Google Patents
Swing-preventing motor of high-precision electric pipette Download PDFInfo
- Publication number
- CN202221940U CN202221940U CN2011203387728U CN201120338772U CN202221940U CN 202221940 U CN202221940 U CN 202221940U CN 2011203387728 U CN2011203387728 U CN 2011203387728U CN 201120338772 U CN201120338772 U CN 201120338772U CN 202221940 U CN202221940 U CN 202221940U
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- CN
- China
- Prior art keywords
- antihunting
- screw rod
- motor
- stator
- swing
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- 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.)
- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to the technical field of an electric pipette, and particularly to a swing-preventing motor of a high-precision electric pipette. The swing-preventing motor comprises a stator, a rotor arranged in the stator, a screw rod which is in threaded connection in the rotor, an upper sheath fixed at the upper end of the stator, and a lower sheath fixed at the lower end of the stator. The upper end of the screw rod passes through the upper sheath, the lower end of the screw rod passes through the lower sheath, a swing-preventing sleeve is arranged between the screw rod and the upper sheath, and the swing-preventing sleeve can be used for eliminating the clearance between the screw rod and the upper sheath and for preventing the swing of the screw rod in movement, and therefore the swing-preventing motor can operate smoothly and has high precision; furthermore, the copper swing-preventing sleeve can play a lubricant role, so that the service life of the motor can be prolonged.
Description
Technical field:
The utility model relates to the pipettor technical field, relates in particular to the antihunting motor of the electronic pipettor of a kind of high accuracy.
Background technology:
In medical treatment, medicine, gene and protein research, biological study, drug development laboratory and other biological technology application; Often need utilize pipettor in various laboratory operation rules, to come handle laboratory; It utilizes pipettor that the liquid of certain volume is sucked in the pipette, then liquid is distributed into one or more dispensed volume.Existing electronic pipettor includes housing main body, be arranged on the imbibition cylindrical shell of housing main body bottom, be arranged on suction nozzle, motor, piston, the desorption head unit of imbibition cylindrical shell bottom; Motor, piston are arranged on housing main body inside, and the motor-driven piston slides up and down and makes the imbibition cylindrical shell carry out imbibition or discharge opeing.
The motor that existing pipettor uses includes stator, be arranged on the rotor of stator interior, be threaded in screw rod in the rotor, be fixed on the stator upper end upper jacket, be fixed on the lower jacket of stator lower end; But it is gapped between screw rod and the upper jacket; Screw rod can be swung in motion process; Move not steadily, influence the precision of pipettor.
The utility model content:
The purpose of the utility model is exactly the deficiency that exists to prior art and the antihunting motor of the electronic pipettor of high accuracy that a kind of screw rod can not swing in motion process, operate steadily is provided.
To achieve these goals, the technical scheme of the utility model employing is:
The antihunting motor of the electronic pipettor of high accuracy; It includes stator, be arranged on the rotor of stator interior, be threaded in screw rod in the rotor, be fixed on the stator upper end upper jacket, be fixed on the lower jacket of stator lower end; Upper jacket is passed in the upper end of screw rod; Lower jacket is passed in the lower end of screw rod, is provided with the antihunting cover between screw rod and the upper jacket.
The material of said antihunting cover is a copper.
The wall thickness of said antihunting cover is 0.5～2mm.
The upper semisection of said antihunting cover outwards is convexly equipped with the formation convex shoulder.
Be connected for tight fit between said antihunting cover and the upper jacket.
The lower semisection outer surface of said screw rod offers stopper slot vertically, and the lower jacket inboard convexes with spacing block set, and spacing block set is arranged in the stopper slot.
The utility model beneficial effect is: the utility model includes stator, be arranged on the rotor of stator interior, be threaded in screw rod in the rotor, be fixed on the stator upper end upper jacket, be fixed on the lower jacket of stator lower end; Upper jacket is passed in the upper end of screw rod, and lower jacket is passed in the lower end of screw rod, is provided with the antihunting cover between screw rod and the upper jacket; The antihunting cover can be eliminated the gap between screw rod and the upper jacket; Prevent that screw rod from swinging in motion process, operate steadily that precision is high; And copper antihunting cover can also play lubricated effect, prolongs the useful life of motor.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model antihunting cover.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, sees shown in Fig. 1～2, the antihunting motor of the electronic pipettor of high accuracy; It includes stator 1, be arranged on the inner rotor 2 of stator 1, be threaded in screw rod 3 in the rotor 2, be fixed on stator 1 upper end upper jacket 4, be fixed on the lower jacket 5 of stator 1 lower end; Upper jacket 4 is passed in the upper end of screw rod 3, and lower jacket 5 is passed in the lower end of screw rod 3, is provided with antihunting cover 6 between screw rod 3 and the upper jacket 4; The gap that antihunting cover 6 can be eliminated between screw rod 3 and the upper jacket 4; Prevent that screw rod 3 from swinging in motion process, operate steadily that precision is high.The material of antihunting cover 6 is a copper, and copper antihunting cover 6 can also play lubricated effect, prolongs the useful life of motor.
The wall thickness of antihunting cover 6 is 0.5～2mm, and the wall thickness of antihunting cover 6 is 1mm in this execution mode.The upper semisection of antihunting cover 6 outwards is convexly equipped with and forms convex shoulder 61, plays positioning action.Be connected for tight fit between antihunting cover 6 and the upper jacket 4.
The lower semisection outer surface of screw rod 3 offers stopper slot 31 vertically, and lower jacket 5 inboards convex with spacing block set 51, and spacing block set 51 is arranged in the stopper slot 31, makes screw rod 3 to move up and down and can't rotate.
Certainly, the above only is the preferred embodiment of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (6)
1. the antihunting motor of the electronic pipettor of high accuracy; Include stator (1), be arranged on the inner rotor (2) of stator (1), be threaded in screw rod (3) in the rotor (2), be fixed on stator (1) upper end upper jacket (4), be fixed on the lower jacket (5) of stator (1) lower end; It is characterized in that: upper jacket (4) is passed in the upper end of said screw rod (3); Lower jacket (5) is passed in the lower end of screw rod (3), is provided with antihunting cover (6) between screw rod (3) and the upper jacket (4).
2. the antihunting motor of the electronic pipettor of high accuracy according to claim 1 is characterized in that: the material of said antihunting cover (6) is a copper.
3. the antihunting motor of the electronic pipettor of high accuracy according to claim 1 is characterized in that: the wall thickness of said antihunting cover (6) is 0.5～2mm.
4. the antihunting motor of the electronic pipettor of high accuracy according to claim 1 is characterized in that: the upper semisection of said antihunting cover (6) outwards is convexly equipped with and forms convex shoulder (61).
5. the antihunting motor of the electronic pipettor of high accuracy according to claim 1 is characterized in that: be connected for tight fit between said antihunting cover (6) and the upper jacket (4).
6. according to the antihunting motor of any electronic pipettor of described high accuracy of claim 1～5; It is characterized in that: the lower semisection outer surface of said screw rod (3) offers stopper slot (31) vertically; Lower jacket (5) inboard convexes with spacing block set (51), and spacing block set (51) is arranged in the stopper slot (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203387728U CN202221940U (en) | 2011-09-05 | 2011-09-05 | Swing-preventing motor of high-precision electric pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203387728U CN202221940U (en) | 2011-09-05 | 2011-09-05 | Swing-preventing motor of high-precision electric pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202221940U true CN202221940U (en) | 2012-05-16 |
Family
ID=46043961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203387728U Expired - Fee Related CN202221940U (en) | 2011-09-05 | 2011-09-05 | Swing-preventing motor of high-precision electric pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202221940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967584A (en) * | 2017-05-04 | 2017-07-21 | 南昌大学 | A kind of automated cell suspension blows and beats evenly mixing device |
-
2011
- 2011-09-05 CN CN2011203387728U patent/CN202221940U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967584A (en) * | 2017-05-04 | 2017-07-21 | 南昌大学 | A kind of automated cell suspension blows and beats evenly mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |