7results about How to "Simple sampling operation" patented technology

The invention discloses a wastewater sampling device for wastewater detection with stratified sampling, comprising a sampling mechanism, wherein the sampling mechanism comprises a sampling seat, a sampling shell arranged on the sampling seat, a piston rod penetrating the sampling seat and the sampling shell, a plurality of piston bodies movably arranged in the sampling shell along a height direction, and a plurality of sampling units rotatably arranged in the sampling shell along a height direction; the piston body is connected with the piston rod, a plurality of sampling units correspond to a plurality of piston bodies one by one, the sampling unit is located below the corresponding piston body, a sampling cavity is formed between the sampling unit and the corresponding piston body and the sampling shell, and a storage cavity is formed between the sampling unit and the corresponding piston body; the sampling shell is respectively provided with sampling ports at positions corresponding to each sampling unit; thereby, during sampling, wastewater of different depths can be sampled simultaneously, and stratified sampling is realized at the same time, and the sampling operation is simple.

The invention relates to the technical field of sampling tools, and discloses an ejection type tree branch and leaf sampler which comprises a handle, a guide tube, an ejection mechanism and a trigger, the ejection mechanism is connected to the interior of the guide tube, the handle is connected to the outer side of the guide tube, the trigger is connected between the handle and the guide tube, and the ejection type tree branch and leaf sampler further comprises a cutting assembly which comprises a traction block and a cutting line, the traction block is erected on the ejection mechanism and is locked after moving to the trigger along the guide pipe, the trigger is used for unlocking, the traction block is ejected under the driving of the ejection mechanism, one end of the cutting line is connected to the traction block, the other end of the cutting line is connected to the guide pipe, and the traction block drives the cutting line to be erected on a target branch. According to the ejection type tree branch and leaf sampler provided by the invention, a user can realize sampling through the ejection type tree branch and leaf sampler through the cooperation of the ejection mechanism, the cutting line and the traction block, so that sampling through a rod-shaped structure and a pestle mode in the prior art is avoided, and branch and leaf sampling operation is simpler and more efficient.

The name of the utility model is a disposable fungus sampling suite. Belongs to the technical field of skin surface fungus sampling detection. The fungus sampling film suite mainly solves the problems that a sampling film is easy to deform during sampling in the existing fungus sampling film suite, so that the operation is inconvenient, and the sampling film is adhered to a slide. The device is mainly characterized by comprising a sampling film, a slide, a sampling film reinforcing layer, a glue protection layer and a disposable sampling packaging bag, a gluing layer is arranged on the bottom surface of the sampling film; the sampling membrane reinforcing layer is consistent with the sampling membrane in appearance and is of a hollow structure, and the bottom surface is fixedly connected with the sampling membrane in a bonding manner; the glue protection layer covers the gluing layer; the sampling film reinforcing layer, the sampling film and the glue protection layer form an integrated sampling piece, and the integrated sampling piece and the slide are put into a disposable sampling packaging bag together. The utility model has the characteristics that the sampling film is not soft any more, the sampling operation is easy, and the sampling film is easy to adhere to a slide, and is mainly used for quickly sampling fungi on the skin surface.

The application discloses a layered sampling monitoring device and method for freeze-thaw cycle test, which comprises a freeze-thaw cycle box, a layered soil sample culture unit, an in-situ monitoring unit and a non-destructive sampling unit. The application provides a layered sampling monitoring device and test method for freeze-thaw cycle test, which has a reasonable structure design and is convenient to operate. The device can realize non-destructive or slightly destructive extraction of target soil samples after different freeze-thaw cycles without damaging the continuity of the whole test, and can realize real-time monitoring of the moisture content and temperature changes of the soil samples in the freezing and thawing process, thereby providing accurate and continuous test data for in-depth study of the evolution law of the freeze-thaw cycle on the soil properties. The device and method of the application significantly improve the continuity and accuracy of the data, and provide a powerful tool for revealing the effect of freeze-thaw on the soil erosion mechanism.

The utility model is applicable to the technical field of tail gas sampling, and provides a high-temperature gas cooled reactor tail gas sampling device which comprises an exhaust pipe and an end cover, a rotating disc is rotatably mounted on the end cover, and a gas conveying pipe is mounted on the rotating disc; the device further comprises a first-stage sealing module, the first-stage sealing module comprises a sealing partition plate and a rotating partition plate, a through hole is formed in the rotating partition plate, a positioning column is slidably installed in the exhaust pipe in the axial direction of the exhaust pipe, a positioning hole is formed in the rotating partition plate, and a push rod is arranged on the rotating disc; and the second-stage sealing module is connected with the positioning column, and the sealing state of the second-stage sealing module is switched in the mode that the second-stage sealing module synchronously moves along with the positioning column. The device is provided with a double-sealing mechanism, so that the sealing effect is good, the sampling operation of the device is simple, the working efficiency is high, and the use effect is good.

The invention relates to the technical field of marine organism sampling, in particular to a minimally invasive accurate sampling method for sea cucumber coelomic fluid. The method comprises the following steps: scanning a sea cucumber body cavity by using an ultrasonic detector, and selecting a position which is thin in back midline body wall and avoids viscera as a sampling part; an injector provided with a special double-layer sleeve type sampling needle is selected, obliquely and slowly pierces into the body wall by 3-6 mm at an angle of 45 degrees and stretches into the body cavity, and the body cavity fluid of the sea cucumber is slowly sucked. In the sampling process, the exposure time of the sea cucumbers is controlled within 1 minute, so that the stimulation to the sea cucumbers is reduced. The minimally invasive accurate sampling method provided by the invention is simple and convenient to operate, rapid and accurate collection of the sea cucumber coelomic fluid can be realized, and the problem of sample pollution caused by contact of the coelomic fluid with dissecting tools and vessels in the sampling process can be effectively prevented. In addition, the wound caused by the method is tiny, the damage to the sea cucumbers is small, the sea cucumbers can recover quickly after sampling, and the rare sea cucumber resources can be effectively protected while scientific research is developed.

The utility model discloses a sterile liquid adding and sampling device. The sterile liquid adding and sampling device comprises a sampling barrel, a piston rod and N piston rings, the N piston rings are arranged on the piston rod at intervals in the axial direction of the piston rod and located in the sampling barrel, the piston rings can reciprocate in the sampling barrel along with the piston rod in the axial direction of the sampling barrel, and the piston rings are always attached to the inner wall of the sampling barrel in a sealed mode. A sampling chamber is defined between the first piston ring close to the sampling opening and the front end of the sampling barrel, a closed isolation cavity is formed between any two adjacent piston rings in the N piston rings, the sampling chamber and the isolation cavity are closed and isolated by the piston rings, and N is greater than or equal to 2; a limiting structure is further arranged on the inner wall of the sampling barrel, and the moving area of the piston ring is limited between the limiting structure and the front end of the sampling barrel. The sterile liquid adding and sampling device provided by the utility model is simple in sampling operation, can effectively ensure sterile sampling, and greatly reduces the probability that cells or reagents are polluted.