CN208146014U - A kind of high precision micro pipettor - Google Patents
A kind of high precision micro pipettor Download PDFInfo
- Publication number
- CN208146014U CN208146014U CN201821204207.0U CN201821204207U CN208146014U CN 208146014 U CN208146014 U CN 208146014U CN 201821204207 U CN201821204207 U CN 201821204207U CN 208146014 U CN208146014 U CN 208146014U
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- CN
- China
- Prior art keywords
- shell
- core pipe
- capillary
- high precision
- driving
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the culture device technical field of laboratory biological sample, is related to a kind of high precision micro pipettor.It includes transparent shell, the transparent core pipe being set in shell, the capillary being set in core pipe, the pressurizing device connecting with core pipe, further includes the clamping driving wheel group being set on inner wall of tube shell, the guide rod being set on shell outer wall along shell length direction, is set on guide rod and can be along the optoelectronic switch that guide rod moves, the driving motor being set on shell, the upper limit switch being set in core pipe and lower position switch, single-chip microcontroller.The utility model uses sensing device of the optoelectronic switch as the liquid absorption amount of capillary, clamping driving wheel group being controlled by single-chip microcontroller, expanding-contracting action being carried out to capillary, can block the washing lotion operation of capillary automatically, imbibition accuracy of measurement is high, it is affected efficient and convenient without human error.
Description
Technical field
The utility model belongs to the culture device technical field of laboratory biological sample, is related to a kind of high precision micro liquid relief
Device.
Background technique
Pipettor is a kind of utensil for quantitative transfer liquid, is widely used in the fields such as biology, chemistry；Chinese patent
CN2014204856238 discloses a kind of micropipettor, uses capillary as liquid absorption device, can satisfy ultra micro reaction
Device liquid relief requirement, but its liquid relief amount be by artificially observing carry out corresponding operating, by observation liquid capillary height,
Artificial to terminate imbibition, liquid relief amount there is a problem of not accurate.
Utility model content
The purpose of this utility model is in view of the problems of the existing technology to provide a kind of high precision micro pipettor.
The specific technical solution of the utility model is as follows：
A kind of high precision micro pipettor including transparent shell, the transparent core pipe being set in shell, is set in core pipe
Capillary, the pressurizing device that is connect with core pipe, further include the clamping driving wheel group being set on inner wall of tube shell, along shell length
Guide rod that direction is set on shell outer wall is set on guide rod and can be along optoelectronic switch that guide rod moves, setting
In driving motor, the upper limit switch that is set in core pipe and lower position switch, single-chip microcontroller on shell；The core pipe can be in pipe
It is moved along its length in shell, the clamping driving wheel group includes that driving idler wheel and driven roller, the core pipe are held on drive
Between dynamic idler wheel and driven roller, driving wheel is provided in the drive shaft of the driving motor, the driving wheel passes through driving wheel
Drive driving idler wheel rotation；The optoelectronic switch includes the transmitter and receiver for being located at shell and tube sides；The single-chip microcontroller
Input connection optoelectronic switch, upper limit switch and lower position switch, the output of the single-chip microcontroller connects driving motor；
Further, the driving idler wheel is fixed on inner wall of tube shell, and driven roller is fixed on inner wall of tube shell by spring lever
On；
Further, the pull rod for stretching out shell is provided on the driven roller；
Further, the pressurizing device includes gas injection capsule, air injection opening and sealing sliding block, the gas injection capsule and air injection opening
Connection, core pipe are connected to sealing sliding block, and sealing sliding block is located in air injection opening and can move along air injection opening, the air inlet of the core pipe
End is connected to air injection opening；
Further, dismountable breather cheek valve is provided on the air inlet of the gas injection capsule；
The upper limit switch and lower position switch use contact limit switch.
The utility model has the advantages that：
The utility model uses sensing device of the optoelectronic switch as the liquid absorption amount of capillary, is controlled and is clamped by single-chip microcontroller
Driving wheel group carries out expanding-contracting action to capillary, can block the washing lotion operation of capillary automatically, and imbibition accuracy of measurement is high, misses without artificial
Difference, it is affected efficient and convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view of A in Fig. 1；
Fig. 3 is the control system schematic diagram of the utility model.
Specific embodiment
A kind of high precision micro pipettor as shown in Figure 1 to Figure 3, including transparent shell 1, be set to it is saturating in shell 1
Bright core pipe 2, the capillary 3 being set in core pipe 2, the pressurizing device connecting with core pipe 2 further include being set on 1 inner wall of shell
Clamping driving wheel group 4, along 1 length direction of shell be set on 1 outer wall of shell with graduated guide rod 5, be set to and lead
To on bar 5 and can along the optoelectronic switch 6 that guide rod 5 moves, the driving motor 7 being set on shell 1, be set in core pipe 2
Upper limit switch 8 and lower position switch 9, single-chip microcontroller 10；The core pipe 2 can move along its length in shell 1, described
Clamping driving wheel group 4 includes driving idler wheel 4-1 and driven roller 4-2, and the core pipe 2 is held on driving idler wheel 4-1 and driven rolling
It takes turns between 4-2, driving wheel 7-1 is provided in the drive shaft of the driving motor 7, the driving wheel 7-1 passes through driving wheel 7-2 band
Dynamic driving idler wheel 4-1 rotation；The optoelectronic switch 6 includes the transmitter 6-1 and receiver 6-2 for being located at 1 two sides of shell；Institute
State input connection optoelectronic switch 6, upper limit switch 8 and the lower position switch 9 of single-chip microcontroller 10, the output connection of the single-chip microcontroller 10
Driving motor 7；
The driving idler wheel 4-1 is fixed on 1 inner wall of shell, and driven roller 4-2 is fixed in shell 1 by spring lever 4-3
On wall, the pull rod 4-4 for stretching out shell 1 is provided on the driven roller 4-2；
The pressurizing device includes gas injection capsule 11, air injection opening 12 and sealing sliding block 13, the gas injection capsule 11 and air injection opening
12 connections, core pipe 2 are connected to sealing sliding block 13, and sealing sliding block 13 is located in air injection opening 12 and can move along air injection opening 12, institute
The inlet end for stating core pipe 2 is connected to air injection opening 12, is provided with dismountable one-way air inlet on the air inlet 14 of the gas injection capsule 11
Valve 15.
The specific work process of the utility model is as follows：
When carrying out imbibition operation using the utility model, the optoelectronic switch 6 of adjusting the utility model is on guide rod 5 first
Position, by 3 lower end of capillary immerse liquid in, the breather cheek valve 15 on gas injection capsule 11 is removed by air inlet 14, capillary
Pipe 3 is automatically drawn into liquid by capillary phenomenon, when liquid is along the position that capillary 3 rises to optoelectronic switch 6, is rolled over according to liquid
Principle is penetrated, liquid reflects the light source of transmitter 6-1, so that receiver 6-2 can not receive the light of transmitter 6-1 transmitting
Source, optoelectronic switch 6 transmit a signal to single-chip microcontroller, and single-chip microcontroller controls the energization of driving motor 7 and rotates forward, and driving motor 7 drives driving
7-1, driving wheel 7-2 rotation, final drive driving idler wheel 4-1 rotation are taken turns, driving idler wheel 4-1 drives core pipe 2 upward in shell 1
It is mobile, bounce back to 3 lower end of capillary in shell 1, liquid is quickly left in 3 lower end of capillary, terminates imbibition operation, capillary 3
Process is moved up, upper limit switch 8 touches 1 top of shell, and upper limit switch 8 drives to singlechip feedbsck signal, single-chip microcontroller control
Motor 7 is out of service.
When carrying out tapping operation using the utility model, the breather cheek valve 15 on gas injection capsule 11 is mounted on air inlet 14
On, starting driving motor 7 inverts, and drives core pipe 2 to move down in shell 1 by driving idler wheel 4-1, lower position switch 9 touches pipe
1 lower part of shell, single-chip microcontroller control driving motor 7 is out of service, and shell 1 is stretched out in 3 lower end of capillary, presses gas injection capsule 11 to core pipe 2
Gas injection squeezes out the liquid in capillary 3, completes tapping operation.
The utility model replace core pipe 2 when, pressurizing device is disassembled, pull pull rod 4-4, make driven roller 4-2 from
The tube wall for opening core pipe 2 replaces core pipe 2 by extracting out in shell 1.
The gas injection capsule 11 of the utility model and transparent shell 1 are directly fixed, and core pipe 2 drives close when carrying out shift action
Envelope sliding block 13 moves linearly in air injection opening 12, while guaranteeing that gas injection capsule 11 is fixedly connected with transparent shell 1, does not influence to infuse
The work of the gas injection into core pipe 2 of air bag 11.
Claims (5)
1. a kind of high precision micro pipettor, including transparent shell (1), the transparent core pipe (2) being set in shell (1), setting
In the capillary (3) in core pipe (2), the pressurizing device that is connect with core pipe (2), it is characterised in that：It further include being set to shell (1)
Clamping driving wheel group (4) on inner wall, the guide rod (5) being set to along shell (1) length direction on shell (1) outer wall, setting
In on guide rod (5) and can along guide rod (5) mobile optoelectronic switch (6), the driving motor (7) being set on shell (1),
The upper limit switch (8) and lower position switch (9) that are set on core pipe (2), single-chip microcontroller (10)；The core pipe (2) can be in shell
(1) it is moved along its length in, the clamping driving wheel group (4) includes driving idler wheel (4-1) and driven roller (4-2), institute
It states core pipe (2) to be held between driving idler wheel (4-1) and driven roller (4-2), be arranged in the drive shaft of the driving motor (7)
Have driving wheel (7-1), the driving wheel (7-1) drives driving idler wheel (4-1) rotation by driving wheel (7-2)；The photoelectricity is opened
Closing (6) includes the transmitter (6-1) and receiver (6-2) for being located at shell (1) two sides；The input of the single-chip microcontroller (10) connects
Optoelectronic switch (6), upper limit switch (8) and lower position switch (9) are connect, the output of the single-chip microcontroller (10) connects driving motor
(7)。
2. a kind of high precision micro pipettor as described in claim 1, it is characterised in that：The driving idler wheel (4-1) is fixed
In shell (1) inner wall, driven roller (4-2) is fixed on shell (1) inner wall by spring lever (4-3).
3. a kind of high precision micro pipettor as claimed in claim 2, it is characterised in that：It is set on the driven roller (4-2)
It is equipped with the pull rod (4-4) for stretching out shell (1).
4. a kind of high precision micro pipettor as described in claim 1, it is characterised in that：The pressurizing device includes gas injection capsule
(11), air injection opening (12) and sealing sliding block (13), the gas injection capsule (11) connect with air injection opening (12), and core pipe (2) is connected to
It seals sliding block (13), sealing sliding block (13) is located in air injection opening (12) and can be mobile along air injection opening (12), the core pipe (2)
Inlet end is connected to air injection opening (12).
5. a kind of high precision micro pipettor as claimed in claim 4, it is characterised in that：The air inlet of the gas injection capsule (11)
(14) dismountable breather cheek valve (15) are provided on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204207.0U CN208146014U (en) | 2018-07-27 | 2018-07-27 | A kind of high precision micro pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204207.0U CN208146014U (en) | 2018-07-27 | 2018-07-27 | A kind of high precision micro pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208146014U true CN208146014U (en) | 2018-11-27 |
Family
ID=64388962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821204207.0U Expired - Fee Related CN208146014U (en) | 2018-07-27 | 2018-07-27 | A kind of high precision micro pipettor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208146014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022108177A1 (en) * | 2020-11-20 | 2022-05-27 | 바디텍메드(주) | Socket for coupling capillary tip |
-
2018
- 2018-07-27 CN CN201821204207.0U patent/CN208146014U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022108177A1 (en) * | 2020-11-20 | 2022-05-27 | 바디텍메드(주) | Socket for coupling capillary tip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 Termination date: 20200727 |