8results about How to "Guaranteed safety" patented technology

The utility model discloses a stone surface polishing device which comprises a polishing table, first guide rails are fixedly connected to the two sides of the polishing table, second guide rails are fixedly connected to the two sides of the polishing table, the bottoms of the second guide rails are in a tooth shape, an adjusting assembly is arranged at the top of the polishing table, a sliding frame is arranged on the surface of the adjusting assembly, and the sliding frame is provided with a sliding groove. A grinding machine is arranged on the front face of the sliding frame. The polishing machine is separated from the surface of the stone, the air cylinder is started, the cleaning roller is attached to the surface of the stone, the first motor is started, the cleaning roller rotates, the second motor is started, the rotating rod drives the transferring frame to slide on the top of the polishing table through the gear and the second guide rail, and the cleaning roller slides on the surface of the stone. Therefore, the purposes of cleaning the surface of the stone through the cleaning structure, preventing dust and chippings on the surface of the stone from influencing the grinding effect and ensuring the polishing effect of the surface of the stone are achieved.

This utility model discloses a maintenance device for an electric tricycle door lock controller, comprising a maintenance device body. A fixing frame is fixedly connected to the right side of the maintenance device body. A groove is formed on the right side of the fixing frame, and a slider is slidably connected to the inner cavity of the groove. Two symmetrical sliding rods are fixedly connected to the inner cavity of the groove, and the sliding rods pass through the slider and are slidably connected to it. This utility model, by placing the connector of the maintenance device on top of clamping block one, rotating the torsion block causes the threaded rod and the slider to move threadedly. Through the limiting of the sliding rods, the slider causes clamping block two to slide downwards, thereby clamping the connector of the maintenance device with clamping block two and clamping block one. This achieves the purpose of fixing the connector of the maintenance device through a fixed structure, preventing the connector of the maintenance device from falling during transportation and handling, and ensuring the safety of the maintenance device during handling.

The application discloses a cavity type prefabricated segment assembled pier top beam and a construction method thereof. The top plate of the pier top beam is divided into a first top plate and a second top plate, the second top plate is located in the middle of the first top plate, the bottom plate is divided into a first bottom plate and a second bottom plate, the second bottom plate is located in the middle of the first bottom plate, the web plate is divided into a first web plate and a second web plate which are mutually attached, the pier top beam structure comprises a shell and an inner cavity part, the shell comprises the first top plate, the first bottom plate, the first web plate and a flange plate, and the shell is a prefabricated reinforced concrete component; the inner cavity part comprises the second top plate, the second bottom plate and the second web plate, and the inner cavity part is a cast-in-situ reinforced concrete structure. The prefabricated shell is light and thin, the prefabricated shell reduces the weight of the prefabricated segment by 30-50% compared with the prefabricated pier top beam, and is convenient for transportation and hoisting; the pier top segment beam has global stability and seismic performance, the wet joint design of the cast-in-situ beam is removed, the installation speed of the segment assembly is ensured, and the longitudinal splicing joint of the beam is reduced, and the safety of the beam is ensured.

The electric submersible pump device comprises an oil outlet pipe, the upper end of the oil outlet pipe is connected with a pump body, the lower end of the oil outlet pipe is connected with a shear pipe set, an oil outlet shaft is arranged in the oil outlet pipe, an output shaft of the pump body is connected with the oil outlet shaft, the oil outlet shaft is provided with an oil outlet spiral disc, and the oil outlet spiral disc is connected with the shear pipe set. A shearing base shaft is arranged in the shearing pipe set and connected with an oil outlet shaft. A top shearing ring is fixedly arranged on the outer wall of the shearing base shaft, and a top shearing knife is arranged on the outer wall of the top shearing ring; the shearing base shaft is connected with a bottom shearing ring through a rotating reversing mechanism, and a bottom shearing knife is arranged on the outer wall of the bottom shearing ring. The rotating directions of the top shearing ring and the bottom shearing ring are opposite, so that the rotating directions of the bottom shearing knife and the top shearing knife are opposite, a petroleum polymer can be sheared twice, the shearing effect is guaranteed, and the lifting efficiency is improved.

The utility model discloses a kind of air pipe installation two-way support, it includes the support rod one being set at branch pipe top and bottom, the top of two described support rod one is penetrated and is provided with suspender, the surface of described suspender is equipped with connecting plate, the top of described connecting plate is provided with nut, the suspender is connected with nut thread, the bottom of described suspender is penetrated two symmetrical support rod one and is threadedly connected with nut.The utility model fixes the one end of suspender and support rod two far from connecting plate on wall top by expansion bolt, rotates threaded sleeve, the length of sleeve pipe and threaded rod is adjusted, then by fixing bolt, shell and fixed plate are respectively fixed in the appropriate position of support rod two and connecting rod surface, the support rod of two-way support can be reinforced, avoid the deformation of the support rod of two-way support, improve the purpose of two-way support stability.

The application discloses an adaptive digital rehabilitation system and method based on machine vision and a finite state machine, and belongs to the technical field of medical digital rehabilitation and computer vision. The system acquires a video stream and extracts bone key points and confidence; unreliable frames are filtered based on confidence locking, and a dynamic weighted smoothing filtering algorithm of a historical time sequence is used for data denoising; a virtual bed surface model is constructed, a real clinical angle is calculated by using double zero-return calibration, and compensation cheating is intercepted through normal distance verification; a finite state machine triggered by an edge and a dynamic tolerance time window are combined to prevent motion misjudgment, and a forced rest lock is used to prevent fatigue; redundant operations are avoided by using a minimum extreme value capacity matrix to cut off invalid counting; and non-blocking feedback is executed through concurrent instruction execution decoupled from visual rendering. The application effectively improves the medical effectiveness and reliability of digital rehabilitation data.

The invention relates to the technical field of vehicle-mounted radar communication products, in particular to a start-up surge current suppression circuit for a vehicle-mounted radar communication product and a working method of the start-up surge current suppression circuit. The circuit comprises a voltage division circuit, a voltage stabilizing circuit, a shutdown discharging circuit, a shunt circuit, a capacitor charging circuit and a power tube switching circuit. The voltage division circuit provides a charging path for the capacitor charging circuit; the voltage stabilizing circuit is used for limiting the driving voltage upper limit of the power tube switching circuit; the shunt circuit is connected in parallel with the power tube switching circuit and is used for shunting surge current at the starting moment; the capacitor charging circuit is electrically connected with the power tube switching circuit and provides driving voltage for conduction of the power tube switching circuit; and the shutdown discharging circuit is electrically connected with the power tube switching circuit and is used for releasing charges stored in the power tube switching circuit when the system is powered off. According to the invention, rapid and repeated surge current generated on the power supply bus during startup can be suppressed, and the device has the advantages of high efficiency, small switching loss, good dynamic performance, convenient assembly and the like.

The utility model relates to the technical field of digestion tanks, in particular to an assembly type digestion tank for a high-flux digestion instrument, which comprises a box body, a plurality of positioning cavities are arranged at the bottom of the box body, a limiting plate is arranged at the left end of the box body, a plurality of containing cavities are connected in the box body in a sliding manner, a polytetrafluoroethylene liner tube is connected in each containing cavity in a sliding manner, and the polytetrafluoroethylene liner tube is arranged in the box body. A bottom gasket is slidably connected to the interior of each polytetrafluoroethylene liner tube, a digestion inner container is slidably connected to the top of each bottom gasket, a polytetrafluoroethylene digestion upper cover is arranged at the top of each digestion inner container, and a top gasket is slidably connected to the top of each polytetrafluoroethylene digestion upper cover; the top of each top gasket is slidably connected with a pressure bolt. Through rotation of the limiting plate, the positioning ring connecting rod can be tightly attached to the limiting plate, so that it is guaranteed that the containing cavity is tightly attached to the limiting arc plate, the stability of the containing cavity is guaranteed, and the safety degree of the whole equipment is guaranteed.