4results about How to "Guaranteed linear motion" patented technology

This invention discloses a concrete strength testing device and its usage method, comprising: a rebound hammer body and a rebound hammer rod; the rebound hammer rod is disposed on the rebound hammer body; further comprising: a rebound hammer replacement component disposed on the rebound hammer rod, a movable component disposed on the rebound hammer rod, a reset component disposed on the movable component, a support component disposed on the movable component, a fixing component disposed on the support component, an installation component disposed on the rebound hammer body, and an ultrasonic transducer component disposed on the installation component. This invention relates to the field of concrete strength testing, ensuring that the measuring point positions and contact coupling conditions of rebound and ultrasonic testing are highly consistent, minimizing data errors caused by measuring point position deviations and surface condition differences. The structure is relatively simple and easy to use.

This utility model discloses a portable grease cleaning device for narrow pipes, belonging to the technical field of pipe cleaning equipment. It solves the problems of low cleaning efficiency and inability to perform reciprocating operations with a single brush / scraper. The utility model includes a cleaning rod, a crank-connecting rod propulsion device, a detachable arc-shaped scraper head, and a one-way pneumatic connector. The cleaning rod reciprocates through the propulsion pin of the crank-connecting rod mechanism, driving the scraper head to scrape away grease from the pipe. The scraper head is detachable and replaceable to adapt to different pipe sizes. The one-way pneumatic connector and positioning pin ensure a stable connection of the device. This utility model has a compact structure, is easy to operate, and provides stable propulsion, effectively solving the problem of cleaning grease in narrow pipes, improving cleaning efficiency and applicability, and is suitable for cleaning narrow pipes in kitchens, industries, and other similar scenarios.

The utility model relates to the finished brick field discloses a regenerated finished brick cleaning device, including drum conveyer, gantry, support rod, lifting oil cylinder, horizontal bar, second drive motor, screw thread screw rod, guide slide rail, slide table, water spray frame and guide support etc. constitute. The drum conveyer is driven by the first drive motor, and the lifting oil cylinder can drive the water spray frame to realize vertical direction position adjustment, and the second drive motor drives the slide table to drive the water spray frame to reciprocate along the direction of the drum conveyer, and the brick on the opposite material plate is repeatedly washed. The utility model through the cooperation of each component has the effect that the cleaning efficiency is high, and the maintenance is easy.

The utility model provides a mould lock core tool which is used for locking a plurality of sand cores and comprises a base, a supporting plate is arranged on the base, a positioning block used for positioning the sand cores is arranged on the supporting plate, and side pressing assemblies used for pressing the sand cores are symmetrically arranged on the left side and the right side of the supporting plate. A sand shooting plate and an air blowing plate are sequentially arranged above the supporting plate from bottom to top, the side pressing assembly comprises a mounting plate arranged on the supporting plate, an air cylinder is obliquely arranged on the mounting plate, a connecting plate is arranged at the end of a piston rod of the air cylinder, and a plurality of pressing blocks corresponding to sand cores are arranged at the connecting plate. The utility model has the advantages that the resin sand is injected into the sand core cavity and is blown and cured, so that a plurality of sand cores are locked, and the sand core assembly efficiency and the casting yield are improved.