6results about How to "Conditions affecting normal use" patented technology

The invention discloses a quality detection device for research and development of a composite cerium-based catalyst, and relates to the technical field of quality detection assistion.The quality detection device comprises quality detection equipment, an injection port, an injection rod, a solution sleeve and a needle, the injection port is fixedly connected to the quality detection equipment, the injection rod is inserted into the solution sleeve, and the needle is inserted into the solution sleeve; the needle head is fixedly connected to the bottom of the solution sleeve, the first assembly is arranged on the transverse plane of the auxiliary assembly, the first assembly can effectively detect the moving smoothness of a piston on the injection rod in the solution sleeve, and the second assembly can effectively detect the moving smoothness of the piston on the injection rod in the solution sleeve. The operation of detecting the smoothness of the piston of the micro injector before injecting the quality detection medicament can effectively avoid the situation that the time for sucking and injecting a sample is prolonged due to unsmooth movement of the piston in the sample sucking process, an operator needs to spend more time and energy to overcome the resistance of the piston and adjust the speed, and the experiment efficiency is reduced; and the experimental error risk is increased.

The utility model relates to the technical field of printed circuit boards, in particular to a printed circuit board drying device. The drying device comprises a drying box, a box door is rotationally installed on the drying box, two supporting rods are installed in an inner cavity of the drying box, the arc faces of the two supporting rods are connected with a movable plate in a sliding mode, the surface of the movable plate is connected with a containing plate in a sliding mode, and two sliding grooves are formed in the inner cavity of the drying box; the inner wall of the drying box sliding groove is slidably connected with a sliding block, the sliding block is fixedly connected with the side wall of a movable plate, two rows of adjusting grooves are formed in an inner cavity of the drying box, two supporting plates are fixedly connected to the lower surface of the movable plate, sliding rods are slidably inserted into the supporting plates, one end of each sliding rod is fixedly connected with a pulling plate, and the other end of each sliding rod is fixedly connected with a sliding block. And the arc surface of the sliding rod is in sliding connection with the drying box adjusting groove. The problems that the drying efficiency is low, the drying time is long, the production efficiency is affected, drying is not uniform, part of circuit boards are dried insufficiently, and the product quality is affected are solved.

The invention discloses a quality inspection device for the research and development of a composite cerium-based catalyst, which relates to the field of quality inspection auxiliary technology, and comprises: a quality inspection device, an injection port, an injection rod, a solution sleeve, and a needle, wherein the injection port is fixedly connected to the quality inspection device, the injection rod is inserted in the solution sleeve, and the needle is fixedly connected to the bottom of the solution sleeve, and further comprises: an auxiliary component, a first component, and a second component, wherein the first component is arranged on a transverse plane of the auxiliary component, and the first component can be used to effectively detect the smoothness of movement of a piston on the injection rod in the solution sleeve. This operation of detecting the smoothness of the piston of a micro-injector before injecting a quality inspection agent can effectively avoid the situation in which the time of drawing and injecting the sample is prolonged due to the unsmooth movement of the piston during the sample drawing process, and the operator needs to spend more time and energy to overcome the piston resistance and adjust the speed, thereby reducing the experimental efficiency and increasing the risk of experimental errors.

The utility model discloses a tapered roller bearing with good sealing property, which belongs to the technical field of bearings, and comprises a bearing body, a sealing device is arranged on one side of the bearing body, the sealing device comprises a sealing cover, the sealing cover is sleeved on the bearing body, the sealing cover is arranged between an inner ring and an outer ring of the bearing body, and the sealing cover is arranged on the bearing body. The tapered roller bearing with the good sealing performance comprises a bearing body, a sealing device is arranged in the bearing body, a circular hole block is fixedly connected to one side of the sealing cover, a bolt is arranged in the circular hole block, and a threaded groove is formed in one side of an inner ring of the bearing body. The situation that outside sundries fall into the bearing body through a gap between the inner ring and the outer ring, so that all parts of the bearing body are blocked or friction is increased, and the use performance of the bearing body is affected is reduced, the sealing performance of the bearing body is improved, and the service life of the bearing body is prolonged.

The utility model discloses a pipeline pressure regulator structure in the technical field of regulators, which comprises a protective box and a regulator body, a mounting box is fixedly arranged on the outer side of the protective box, a sliding rod is fixedly arranged on the inner side of the mounting box, two groups of sliding blocks are movably sleeved on the outer side of the sliding rod, and the two groups of sliding blocks movably penetrate through the mounting box and extend to the lower side. Two sets of limiting springs are movably arranged on the inner side of the mounting box, one ends of the two sets of limiting springs are connected to the inner wall of the mounting box, the other ends of the limiting springs are connected to the outer side of the sliding block, an arc-shaped block is fixedly arranged on the inner side of the sliding block, and an adjusting mechanism in butt joint with the arc-shaped block is arranged on the outer side of the mounting box. By means of the simple installation structure, the pressure regulator and the connector between the pressure regulator and the pipeline can be protected conveniently, the service life of the pressure regulator and the connector is effectively prolonged, the use safety of the pressure regulator and the connector is effectively improved, the practical effect is good, and the pressure regulator is worthy of being used and popularized in the existing market.