5results about How to "Operation time saving" patented technology

The utility model discloses a modularized prefabricated wallboard hoisting guide device which comprises a pair of guide structures which are oppositely arranged and are used for being assembled on an original wall body and guiding when a prefabricated wallboard descends, and each guide structure comprises a bottom plate, a positioning plate, a side guide plate, a main guide plate and a guide wheel; and the adjusting structure is used for adjusting the distance between the paired guide structures and comprises a screw rod screwed on the internal thread on the side surface of the bottom plate and a telescopic structure. The device is connected with an original wall in a sleeving mode through the positioning plate, and the original wall is positioned; when the prefabricated wall panel moves to the position above the original wall body and is close to the position above the guide mechanism, the prefabricated wall panel is manually moved and straightened, that is, when the prefabricated wall panel continues to move downwards, the prefabricated wall panel can be accurately moved into the guide mechanism, so that the original wall body and the prefabricated wall panel do not need to spend too much time for alignment, and accurate butt joint can be achieved; the hoisting operation is convenient and time-saving, and the prefabricated wallboard is stably installed.

The utility model discloses an improved smoke suction barrel used in an operation process. The improved smoke suction barrel comprises a suction pipe, a three-way pipe fitting and a smoke suction barrel which are connected in sequence, one end of the suction tube is connected with negative pressure equipment; the three-way pipe fitting comprises two connecting ends and a movable opening and closing end; the two connecting ends are respectively connected with the suction pipe and the smoke suction cylinder; the opening and closing state of the movable opening and closing end is manually controlled; the inner diameter of the smoke suction cylinder is larger than that of the suction pipe. The smoke suction tube has the inner diameter larger than that of the suction tube, is in a wide-mouth shape and can suck smoke in a large area, the smoke suction function is guaranteed, the smoke suction efficiency is improved, and the effects of clearing the surgical field and guaranteeing the health of doctors and patients are achieved; the movable opening and closing end of the three-way pipe fitting is freely controlled manually and closed in a normal state, when the smoke suction cylinder sucks blood clots or tissues and is blocked, suction force can be cut off by opening the movable opening and closing end to pour out sucked objects, negative pressure equipment does not need to be closed, operation is simpler and more time-saving, and the influence on the operation process is reduced to the maximum extent.

The invention discloses a hollow magnetic material as well as preparation and application thereof in food detection pretreatment, and belongs to food detection analysis. The hollow magnetic MgFe-LDH is synthesized through a one-step method, the MgFe-LDH is in a hollow flower-ball shape, black Fe3O4 balls are stacked on the hollow flower-ball shape of the MgFe-LDH, the hollow magnetic MgFe-LDH is used for magnetic solid phase extraction (MSPE) of quinoline carboxylic acid antibacterial drugs in honey samples, compared with a traditional adsorbent, the magnetic MgFe-LDH is easily dissolved by acid, and the magnetic Fe3O4 balls are not prone to being dissolved by the acid. In the extraction process, H2SO4 is selected to dissolve materials to replace a traditional organic solvent extraction mode, so that the extraction process is more efficient and green. The method for detecting the quinoline carboxylic acid antibacterial drugs in the food by using the hollow magnetic MgFe-LDH as the adsorbent provided by the invention has the advantages of wide linear range (0.03-7mg. L <-1 >), low detection limit (0.023-0.036 mg. L <-1 >), high correlation coefficient (greater than 0.9988), good precision (4.4-9.3%), high extraction recovery rate (83.8-104.3%) and the like.

The utility model relates to the technical field of wallboard machining, in particular to PC wallboard machining equipment which comprises a first conveying belt and a second conveying belt, an installation frame is arranged between the first conveying belt and the second conveying belt, a rotating rod is installed in the installation frame, and polishing discs are installed at the two ends, close to the inner wall of the installation frame, of the rotating rod. The two ends of the two-way lead screw are sleeved with the two moving seats in a threaded mode, when the two-way lead screw is driven by the positioning motor to rotate, the two positioning plates can be driven to move close to or away from each other, and then the position of the PC wallboard on the first conveying belt can be adjusted conveniently; and by means of the grinding discs installed at the two ends of the rotating rod, when the grinding motor drives the rotating rod and the two grinding discs to rotate synchronously, the two side edges of the PC wallboard can be ground at the same time, time is saved during operation, and the machining cost of the PC wallboard can be reduced easily.