6 results about "Disc diameter" patented technology

The utility model belongs to the field of medical instruments, and discloses an ATP sampler which comprises a first sealing pipe, a second sealing pipe and a third sealing pipe, the first sealing pipe and the second sealing pipe are detachably connected in a sealed mode, and the second sealing pipe and the third sealing pipe are detachably connected in a sealed mode. A sealing disc and a liquid leakage disc are fixedly arranged in the second sealing pipe, the diameter of the sealing disc is smaller than the inner diameter of the second sealing pipe, and a plurality of connecting blocks are fixedly arranged between the outer edge of the sealing disc and the inner wall of the second sealing pipe; a plurality of liquid inlet holes are formed in the liquid leakage disc; a liquid storage cavity is formed in the third sealing pipe, a liquid outlet pipe communicated with the liquid storage cavity is fixedly arranged at the end, facing the second sealing pipe, of the third sealing pipe, and the end, away from the third sealing pipe, of the liquid outlet pipe abuts against the sealing disc in a sealed mode. According to the utility model, the mixed liquid can only flow out manually, so that the problem that the mixed liquid flows out due to external force factors is avoided, and the sensitivity and the stability of the mixed liquid are ensured; the device is used for sampling and detecting medical instruments, water quality or microorganisms and the like.

The invention belongs to the technical field of rock mechanics, and particularly discloses a rock brittleness quantitative evaluation method based on a Brazilian splitting test. The evaluation method comprises the following steps: processing a target rock into a standard disc sample, putting the standard disc sample into a Brazilian splitting test clamp, and loading according to requirements by adopting a pressure testing machine; after loading, enabling the lens of the high-definition camera to face the center of the standard disc sample in the forward direction, and shooting the crack of the loaded sample; performing illumination normalization processing on the shot image and suppressing noise to enhance texture information; identifying cracks in the image by adopting an edge detection algorithm, performing skeleton extraction, and calculating the actual length of the cracks in combination with an image scale or a disc sample size; and taking the ratio of the actual crack length to the disc diameter as an index for evaluating the brittleness of different rocks. According to the method, the standardized Brazilian splitting experiment is combined with quantitative evaluation, the fracture characteristic and the energy conversion rule of the rock in the tensile stress state are fully reflected, and the method has the characteristics of being simple and convenient to operate, reasonable and reliable in result and high in adaptability.

The present application relates to high pole lamp technical field, especially to a kind of high pole lamp's vice disc, it is suitably set on pole body in liftable mode, including the multiple fixed buffering structures spaced apart along the circumference of pole body, the upper end of fixed buffering structure is connected with pole body and can rotate relative to pole body, so that the lower end of fixed buffering structure swings in the direction away from or close to pole body;The lower end between every two adjacent fixed buffering structures is connected by a pair of expansion structure, to form a disc body;One end of expansion structure is fixed end fixedly connected with the lower end of fixed buffering structure, and the other end is movable end that can be extended or contracted, and the movable end of each pair of expansion structure is hinged;The diameter of disc body becomes larger or smaller with the movable end of expansion structure extension or contraction. Without lowering vice disc when lowering main disc to pole body bottom for maintenance, main disc can be directly lowered to pole body bottom by disc diameter adjustment to minimum vice disc, and maintenance efficiency can be significantly improved, and maintenance cost is reduced.

The utility model relates to the field of glasses processing discloses a kind of slotting cutters for frame processing, cutting tool component includes pivot, round cutter, respectively located the limiting disc A and limiting disc B of round cutter left and right sides, positioning disc is fixedly arranged in the left end of handle, screw, polishing component, handle is hollowly arranged, pivot is located handle inside and is rotatably connected with handle, mounting sleeve is inserted into contact connection with round cutter, limiting disc A and limiting disc B, mounting sleeve inside is equipped with screw thread, screw is screwed into mounting sleeve and is fixedly connected with limiting disc A, positioning disc is connected with limiting disc B and is in contact, positioning disc diameter is greater than round cutter diameter, round cutter diameter is greater than limiting disc A and limiting disc B diameter.The utility model has the beneficial effect of avoiding to cut bad piece groove, solves the problem that operator may cut bad piece groove and cause piece groove and lens to be unable to match, causes the problem of inconvenient installation lens.

The utility model relates to a press clamp tool, and belongs to the technical field of presses, the press clamp tool comprises a base, limiting strip holes are formed in the base, the limiting strip holes are radial, the center points of the limiting strip holes are located under a pressing head, and the single radial path of the limiting strip holes is a straight line; a disc and a positioning rod are arranged on the base, the disc is rotationally arranged at the bottom of the base, a rotating shaft is arranged in the vertical direction, the circle center of the disc and the center point of the limiting strip-shaped hole are located on the same vertical line, and a long-strip-shaped hole is formed in the disc from the center of the disc to the position close to the edge of the disc and stretches across the diameters of the multiple discs; the number of the positioning rods and the number of the long-strip-shaped holes correspond to the number of the radiation paths of the limiting strip-shaped holes, the single radiation paths of the positioning rods, the long-strip-shaped holes and the single radiation paths of the limiting strip-shaped holes are distributed in the vertical direction in a one-to-one correspondence mode, and the multi-directional synchronous limiting device has the effect of achieving multi-directional synchronous limiting of the workpiece to be machined.

A holder having a first tube having a first end and a second end. A first disk defining a first disk aperture. The first disk including a first surface and a second surface. The second surface positioned over the first end of the first tube. The first disk defining an aperture having a first disk diameter. A second disk including a first surface and a second surface, the first surface of the second disk covering the second end of the first tube. A second tube including a first end and a second end, the second surface of the second disk positioned over the first end of the second tube. A third disk positioned over the second end of the second tube, the third disk defining an aperture having a third disk diameter.