Automatic sampling and storing device for biology laboratory
A laboratory-used, automatic sampling technology, applied in the field of biological experiments, can solve the problems of large displacement of water pumps, loading of test tubes with specified sample volume, increase of cleaning burden of staff, etc., and achieve high operation accuracy
Inactive Publication Date: 2020-12-04
山东药品食品职业学院
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems existing in the prior art that "it is difficult to accurately control the start and stop of the water pump in the actual working state, and it is difficult to accurately fill the test tube into the specified sample volume due to the large displacement of the water pump, and sometimes it even overflows when it is full." The phenomenon of spilling and leaking increases the cleaning burden of the staff", and proposes an automatic sampling and storage device for biological laboratories
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0025] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0026] In the present inv...
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The invention discloses an automatic sampling and storing device for a biology laboratory. The device comprises a base, a storage cabinet is fixedly connected to the base, a storage cavity is formed in the storage cabinet, a lead screw is rotatably connected to the inner wall of the storage cavity, and a driving motor is fixedly mounted on the outer side wall of the storage cabinet; and the end, penetrating through the storage cabinet, of the lead screw is fixedly connected to the output end of the driving motor, the lead screw is in threaded connection with a communicating sleeve, the communicating sleeve is fixedly communicated with a sampling pipe, and the end, away from the communicating sleeve, of the sampling pipe is fixedly connected with a sampling needle. A piston rod stretches back and forth under the common elasticity of a spring and an elastic telescopic pipe, when the piston rod extends outwards, the air pressure in a liquid storage cavity is reduced, a sample liquid begins to be sucked in the liquid storage cavity, and when the piston rod moves inwards, the air pressure in the liquid storage cavity is increased, the liquid begins to be discharged, and the liquid discharge amount is constant every time the cam rotates by a circle, so the obtained sample size is easier to control, and the operation accuracy is high.
Description
technical field [0001] The invention relates to the technical field of biological experiments, in particular to an automatic sampling and storage device for biological laboratories. Background technique [0002] Biological experiments refer to the process of purposefully observing and studying biological structures and life activity phenomena that are difficult to observe under normal circumstances by using certain instruments, materials and medicines under specific environmental conditions. Biology is a natural science based on experiments. Through biological experiments, not only can help students understand the concepts and laws of biology, and truly learn the basic knowledge of biology, but also help inspire students to think positively, conduct scientific method training, and cultivate students' scientific quality. [0003] According to the Chinese Patent Publication No.: CN111389481A, an automatic sampling and storage device for biological laboratories, including a ho...
Claims
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IPC IPC(8): G01N1/14G01N35/00A61L2/18
CPCA61L2/18G01N1/14G01N35/00584
Inventor 邢军余霞杨雪张颖囡
Owner 山东药品食品职业学院