CN215115329U - Automatic remove multichannel of bubble and select syringe pump - Google Patents
Automatic remove multichannel of bubble and select syringe pump Download PDFInfo
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- CN215115329U CN215115329U CN202022997438.5U CN202022997438U CN215115329U CN 215115329 U CN215115329 U CN 215115329U CN 202022997438 U CN202022997438 U CN 202022997438U CN 215115329 U CN215115329 U CN 215115329U
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Abstract
The utility model discloses an automatic bubble-removing multi-channel selection injection pump, which consists of a multi-channel selection valve and an injection pump; the multi-channel selection valve comprises a motor, a valve stator and a valve rotor, wherein the valve stator is provided with a main hole, branch holes uniformly distributed by taking the main hole as the center of a circle, a liquid outlet hole and a groove 1 communicated with the liquid outlet hole, and the valve rotor is provided with a groove 2 communicated with the main hole of the valve stator and each branch hole and a groove 3 communicated with the groove 1; the injection pump comprises a pump sleeve, a plunger rod and a motor, the pump sleeve is a cylindrical pipe hermetically connected with the multi-channel selection valve, and a cavity of the injection pump is respectively communicated with a main hole and a liquid outlet hole of the valve stator through a channel in the valve stator to form a liquid pumping channel and a liquid drainage channel; the utility model discloses design multichannel selector valve and syringe pump as an organic whole, reducible adapting unit, improvement ration precision, and with the drawing liquid passageway and the drainage channel separately design of syringe pump, can prevent that the unable complete exhaust phenomenon of bubble of single channel syringe pump cavity from taking place.
Description
Technical Field
The utility model relates to a liquid technique is joined in marriage to the accurate ration of liquid, concretely relates to automatic remove multichannel selection syringe pump of bubble.
Background
For precision analysis instruments, accurate sampling and quantification are a key factor determining the performance of the instrument, and a method of sampling and quantifying by combining a syringe pump and a multi-channel selection valve into various precision instruments is widely used.
However, during the use process, the combination method still has a problem: the injection pump generally is the same entrance of business turn over liquid sharing, the sample is followed same hole site business turn over, in the use, accurate injection pump is when extracting liquid, if there is a small amount of bubbles to sneak into the injection pump cavity, then the bubble of sneaking into gathers at cavity top edge, when flowing back, the bubble of gathering at cavity top edge can be pushed to in the connecting tube that is not far away from business turn over liquid mouth after the liquid in the cavity is exhausted, when taking a sample next time by the injection pump cavity again, lead to the bubble of persisting to relapse at connecting tube and injection pump intracavity removal, the ration system of unable discharge, because the air is easy to be compressed, thereby reduce the ration accuracy of accurate injection pump.
For solving above-mentioned problem, guarantee the quantitative precision of accurate syringe pump, the utility model discloses creative select the syringe pump design with the multichannel for drawing liquid passageway and drainage channel detached binary channels structure, the during operation, draw liquid passageway ration extraction sample from drawing liquid to release the sample completely from drainage channel, even if the bubble has been sneaked into in inlet channel or the syringe pump cavity, also can release bubble and sample are whole from drainage channel when pushing away the sample, guarantee when the feed liquor ration next time, no bubble in inlet channel and the syringe pump cavity.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model provides an automatic remove multichannel selection syringe pump of bubble which characterized in that: the multi-channel selection injection pump consists of a multi-channel selection valve and an injection pump; the multi-channel selection valve is composed of a motor, a valve stator and a valve rotor, wherein the valve stator is provided with a main hole, a plurality of branch holes which are uniformly distributed by taking the main hole as the center of a circle, a liquid outlet hole and a groove 1 which is communicated with the liquid outlet hole, and the valve rotor is provided with a groove 2 which can communicate the main hole of the valve stator with each branch hole and a groove 3 which can be communicated with the groove 1; the injection pump comprises a pump sleeve, a plunger rod and a motor, the pump sleeve is a cylindrical pipe hermetically connected with the multi-channel selection valve, and a cavity of the injection pump is respectively communicated with a main hole and a liquid outlet hole of the valve stator through a channel in the valve stator to form a liquid pumping channel and a liquid drainage channel; the utility model discloses when using, multichannel selector valve with 2 rotations of slot to with certain branch hole intercommunication states, after the injection pump ration extracted liquid from corresponding branch hole, the multichannel selector valve with 1 rotations of slot to with slot 3 intercommunication and the state of going out liquid hole and adjacent branch hole intercommunication on the valve stator, the injection pump pushes away the liquid hole of valve stator from the flowing back passageway with the liquid in the cavity to finally release from the branch hole adjacent and that communicate with going out the liquid hole.
Further, the length L of the groove 2 on the valve plate1Should satisfy L1= bore diameter D1+ major bore diameter D2+L2。
Furthermore, the length of the groove 1 on the valve stator and the length of the groove 3 on the valve rotor are smaller than the distance L from the liquid outlet hole on the valve stator to the adjacent branch hole3And the length of the two grooves is not less than the distance L from the liquid outlet hole to the adjacent branch hole on the valve stator3+ branch hole diameter D1+ diameter of liquid outlet D3。
Compared with the prior art, the utility model has the following advantages:
the utility model discloses design multichannel selector valve and syringe pump as an organic whole, reducible adapting unit, improvement ration precision, and with the drawing liquid passageway and the drainage channel separately design of syringe pump, can prevent that the unable complete exhaust phenomenon of bubble of single channel syringe pump cavity from taking place.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the present invention
FIG. 2 is the schematic view of the valve stator structure of the present invention
FIG. 3 is a schematic view of the structure of the valve plate of the present invention
FIG. 4 is the schematic view of the communication state between the groove 2 and the branch hole
FIG. 5 is a schematic view of the communication state between the groove 1 and the groove 3 of the present invention
In the figure, 1-valve stator, 2-valve rotor, 3-valve stator main hole, 4-valve stator branch hole, 5-liquid outlet hole, 6-groove 1, 7-groove 2, 8-groove 3, 9-pump sleeve, 10-plunger rod, 11-liquid pumping channel, 12-liquid discharging channel, 13-liquid outlet end, 14-liquid inlet end and 15-liquid inlet end.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The drawings in the present invention are only schematic structural diagrams showing each part, and do not show the present invention, and other key parts needed in the operation process, such as control parts and power supply parts, but those skilled in the art can understand that other parts not shown are also necessary components for implementing the functions of the present invention, so that the following descriptions and examples do not explain this part.
As shown in fig. 1, 2 and 3, the multi-channel selective injection pump capable of automatically removing bubbles is characterized in that: the multi-channel selection injection pump consists of a multi-channel selection valve and an injection pump; the multichannel selection valve is composed of a motor, a valve stator (1) and a valve moving plate (2), wherein the valve stator is provided with a main hole (3), a plurality of branch holes (4) which are uniformly distributed by taking the main hole as the center of a circle, a liquid outlet hole (5) and a groove (1) (6) communicated with the liquid outlet hole, and the valve moving plate is provided with a groove (2) (7) which can communicate the main hole of the valve stator with each branch hole and a groove (3) (8) which can communicate with the groove (1); the injection pump comprises a pump sleeve (9), a plunger rod (10) and a motor, wherein the pump sleeve (9) is a cylindrical pipe hermetically connected with the multi-channel selection valve, and a cavity of the injection pump is respectively communicated with a main hole and a liquid outlet hole of the valve stator through a channel in the valve stator to form a liquid pumping channel (11) and a liquid drainage channel (12); the multi-channel selection valve is connected with the injection pump in a sealing mode.
As shown in figure 4, when the utility model is used, the multichannel selector valve turns the groove 2 (7) to the state of communicating with a certain branch hole, after the injection pump quantitatively extracts liquid from the corresponding branch hole, as shown in figure 5, the multichannel selector valve turns the groove 1 (6) to the state of communicating with the groove 3 (8) and the liquid outlet hole on the valve stator and the adjacent branch hole, the injection pump pushes the liquid in the cavity from the liquid outlet channel (12) to the liquid outlet hole (5) of the valve stator, and finally pushes the liquid out from the branch hole adjacent to and communicated with the liquid outlet hole.
Claims (3)
1. The utility model provides an automatic remove multichannel selection syringe pump of bubble which characterized in that: the multi-channel selection injection pump consists of a multi-channel selection valve and an injection pump; the multi-channel selection valve is composed of a motor, a valve stator and a valve rotor, wherein the valve stator is provided with a main hole, a plurality of branch holes which are uniformly distributed by taking the main hole as the center of a circle, a liquid outlet hole and a groove 1 which is communicated with the liquid outlet hole, and the valve rotor is provided with a groove 2 which can communicate the main hole of the valve stator with each branch hole and a groove 3 which can be communicated with the groove 1; the injection pump comprises a pump sleeve, a plunger rod and a motor, the pump sleeve is a cylindrical pipe hermetically connected with the multi-channel selection valve, and a cavity of the injection pump is respectively communicated with a main hole and a liquid outlet hole of the valve stator through a channel in the valve stator to form a liquid pumping channel and a liquid drainage channel; when the multi-channel liquid injection valve is used, the groove 2 is communicated with a branch hole through the multi-channel selection valve, after liquid is quantitatively pumped from the corresponding branch hole through the injection pump, the groove 1 is communicated with the groove 3 through the multi-channel selection valve, the liquid outlet hole in the valve stator is communicated with the adjacent branch hole, and the liquid in the cavity is pushed to the liquid outlet hole in the valve stator from the liquid discharge channel through the injection pump and is finally pushed out from the branch hole which is adjacent to and communicated with the liquid outlet hole.
2. An automatic de-bubbling multi-channel selective syringe pump according to claim 1, wherein: the length L of the groove 2 on the valve moving plate1Should satisfy L1Diameter of branch hole D1+ major bore diameter D2+L2。
3. An automatic de-bubbling multi-channel selective syringe pump according to claim 1, wherein: the lengths of the groove 1 on the valve stator and the groove 3 on the valve moving plate are smaller than the distance L from the liquid outlet hole on the valve stator to the adjacent branch hole3And the length sum of the two grooves is not less than the outlet of the valve statorDistance L from liquid hole to adjacent branch hole3+ branch hole diameter D1+ diameter of liquid outlet D3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997438.5U CN215115329U (en) | 2020-12-15 | 2020-12-15 | Automatic remove multichannel of bubble and select syringe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997438.5U CN215115329U (en) | 2020-12-15 | 2020-12-15 | Automatic remove multichannel of bubble and select syringe pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215115329U true CN215115329U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022997438.5U Active CN215115329U (en) | 2020-12-15 | 2020-12-15 | Automatic remove multichannel of bubble and select syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215115329U (en) |
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2020
- 2020-12-15 CN CN202022997438.5U patent/CN215115329U/en active Active
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