Multifunctional integral liquid relief control valve
A control valve, multi-functional technology, applied in the direction of measuring tube/pipette, etc., can solve the problems of difficult to meet the experimental operator, complex structure, uneconomical and other problems, achieve low production cost, accurate liquid control, easy to popularize and popularize Effect
Inactive Publication Date: 2010-01-06
INNER MONGOLIA NORMAL UNIVERSITY
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the finger is wet or there is moisture on the contact surface with the suction port of the pipette, it is difficult to grasp the gap between the finger and the suction port of the pipette, and it is difficult to accurately control the scale position required for the liquid level or the volume of the liquid released, often It needs to be repeated many times, which brings great inconvenience to the operation
Although foreign advanced liquid suction guns have brought great convenience to experimenters and scientific researchers, but due to the high price and only a small amount of equipment, it is difficult to meet the needs of the majority of experimental operators.
In addition, piston-type liquid aspirators and air bag-type liquid aspirators have not yet been widely used due to their complex structure, inconvenient operation, difficulty in accurate control, or uneconomical benefits.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0014] Such as figure 1 As shown, when in use, the suction ball 1 is installed on the suction ball interface of the pipetting control valve 2, and the pipette 12 is connected with the pipette interface of the pipetting control valve 2 through the soft rubber tube 11. Before sucking liquid, turn the spool 3 of the control valve to figure 1 As shown, the straight channel 5 communicates with the suction ball and the pipette connection port channels 4, 10, or screwed to such as figure 2 As shown, the curved channel 9 communicates with the suction ball connection port channel 4 and the small hole 8 of the valve body; when the suction ball is squeezed, the gas in the ball is discharged from the pipette 12 or the small hole 8 of the valve body through the connected channel; Turn the spool to image 3 As shown in , where all the channels are not con...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a multifunctional integral liquid relief control valve. A valve body of the liquid relief control valve is vertically crossed with an port used for connecting an absorption ball and a pipette to form an integral structure, the port is in a column shape, the circle center is provided with a hole-shaped passage communicated with the valve body, the valve body of the control valve is in a column shape and is internally provided with a column-shaped valve plug which can rotate, a straight passage and two bent passages, and the valve body is provided with two small holes communicated to the outside. The liquid relief control valve integrates multiple functions of air exhaust, liquid absorption, liquid drainage and liquid discharge, has simple structure, convenient use, accurate liquid control, single-hand operation and low manufacturing cost, is easy to popularize and meets the requirements of vast experiment operators.
Description
technical field [0001] The invention relates to a control device on a laboratory liquid pipetting tool, in particular to a liquid pipetting control valve on a laboratory pipette that integrates multiple functions of exhaust, liquid suction, liquid discharge and liquid discharge. Background technique [0002] In the laboratories of colleges, enterprises, scientific research institutions in chemical, chemical, biological, pharmaceutical, food, geology, metallurgy, environmental and other industries, pipettes are used to quantitatively transfer liquids, and auxiliary tools are needed to absorb them. At present, in the experiments of students with a large number of colleges and universities, ear wash balls are generally used to absorb liquids from pipettes. In scientific research laboratories, ear wash balls are basically used, and a few of them use pipette guns or pipettes. device. When using the ear wash ball to absorb liquid from the pipette, you need to operate the ear wash...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B01L3/02
Inventor 李景峰
Owner INNER MONGOLIA NORMAL UNIVERSITY