7results about How to "Avoid large gaps" patented technology

The invention relates to the technical field of mine construction, and discloses an ore rolling protection device for mine construction, which comprises a protection plate, a lifting protection frame, buffer structures, moving wheels and a positioning device, the lifting protection frame is mounted on the bottom surface of the protection plate, and the buffer structures are mounted on the left side and the right side of the lifting protection frame; the moving wheels are installed at the bottom end of the buffering structure, the positioning devices are installed on the front side and the rear side of the lifting protection frame, and the lifting protection frame comprises a lifting unit, a main protection unit and an auxiliary protection unit. According to the ore tumbling protection device for mine construction, the lifting protection frame is installed, lifting pumps on the two sides are started to enable lifting rods to ascend and drive the first shear shank to extend at the same time, the first shear shank extends at the same time when the protection plate ascends, and a gap generated between the protection plate and the middle of the buffering structure can be protected; therefore, the purpose of protecting workers is achieved, and the problem that after an original device ascends, a gap in the middle is large is solved.

The utility model discloses a driving system for a high-pressure hose roller, which comprises a vertically arranged driving motor, a speed reducer connected to the driving motor, a pinion connected to a horizontal output shaft of the speed reducer and a large gear ring meshed with the pinion, teeth are arranged on the inner ring of the large gear ring, and the periphery of the large gear ring is fixedly connected with the roller. A high-pressure hose is wound on the roller, an eccentric disc is further arranged on the speed reducer, the inner circle of the eccentric disc is connected to the speed reducer through a plurality of mounting holes in the periphery, and the outer circle of the eccentric disc is connected to the roller base through a plurality of mounting holes in the periphery. The center of the inner circle rotates around the center of the outer circle, so that the center distance between the small gear and the large gear ring is adjusted to be within a designed range to achieve normal meshing. By arranging the eccentric disc, the center distance of the gear set can be adjusted, the assembly precision is improved, the meshing smoothness of the gear set is ensured, and the service life of equipment is prolonged.

The utility model discloses a wireless charging device, which comprises a receiving coil, a receiving coil shell, a transmitting coil, a transmitting coil shell and a connecting piece, the receiving coil is arranged in the receiving coil shell; the transmitting coil is arranged in the transmitting coil shell; when the transmitting coil shell is moved to the receiving coil shell and the transmitting coil shell and the receiving coil shell are aligned to a preset position through the connecting piece, the transmitting coil and the receiving coil directly face each other and are in a matched state, and the gap and the offset between the transmitting coil and the receiving coil are smaller than or equal to a set threshold value. According to the utility model, the coil dislocation during charging can be reduced, the coil area can be reduced, the requirement for foreign matter detection can be reduced, and electromagnetic radiation can be reduced, so that the charging safety is ensured while the charging efficiency is ensured, and the manufacturing cost of the charging device is reduced.

This utility model discloses a palladium-on-carbon filter press device for the production of ritonavir intermediate BDH, belonging to the technical field of filter press devices. It includes a filter press unit, an adjustment unit, and a processing unit. The filter press unit includes a plate and frame frame for support, with a pressure plate slidably installed inside the frame. A pressure block is arranged parallel to one side of the pressure plate. The adjustment unit includes lugs on both sides of the pressure plate and the pressure block. Each lug has a positioning hole at its connecting end to the pressure block facing the pressure plate, and an auxiliary groove is provided below the positioning hole. A positioning tube is fixedly installed at the connecting end of the lug facing the auxiliary groove, and a connecting chain is fixedly installed between the positioning tube and the positioning hole. The processing unit includes a collection plate located below the plate and frame frame. This utility model has the advantage of separating the pressure plates without manual operation, thus facilitating the removal of the filter cake between the pressure plates.

The utility model discloses a greenhouse big -arch shelter with double -layer heat preservation film structure, including ground beam, the ground beam's top one side installs the support side plate, the top of ground beam and the one side outer wall of support side plate install between first installation framework and second installation framework, the top of first installation framework is paved with first heat preservation film, the top of second installation framework is provided with the heat preservation film take -up assembly for the take -up of second heat preservation film, heat preservation film take -up assembly sets up on the arc pneumatic slide platform for moving in a certain direction for driving heat preservation film take -up assembly. The utility model can according to actual demand and weather change, the covering state of second heat preservation film is flexibly controlled, when needing to enhance the heat preservation effect, can quickly lay second heat preservation film on the top of second installation framework, when weather is getting warmer or carries out the inside operation of big -arch shelter, can also conveniently wind it, and simple and efficient operation saves manpower and time cost.

The utility model discloses a novel warmer panel which comprises a panel body, the top of the panel body is provided with a fixed shell, the top of the fixed shell is provided with a movable shell, through an elastic clamping mechanism of a clamping block and a clamping groove, rapid assembly of the warmer panel is achieved, the assembly efficiency is remarkably improved, and the practicability is high. By means of the gap between the movable shell and the fixed shell and the compression and reset functions of the spring, the position of the movable shell can be automatically adjusted, the movable shell is allowed to incline and stretch out and draw back by a certain amplitude in the fixed shell, the installation inclination of the heater main machine is effectively adapted, it is ensured that the movable shell is tightly attached to the main machine air outlet all the time, and the service life of the heater main machine is prolonged. And the dynamic balance of the fitting degree of the air outlet is ensured, and the use stability and the heat efficiency of the warmer are improved, so that the problem that a gap is large due to mismatching of installation is avoided, the air leakage phenomenon is greatly reduced, and high practicability and market popularization value are achieved.

The invention relates to the technical field of liquid drop collecting devices, in particular to a liquid drop collecting device based on a micro-fluidic chip. According to the technical scheme, the micro-fluidic chip comprises a base and a liquid collecting box, the upper end of the base is provided with a micro-fluidic chip body located above the liquid collecting box through two supporting plates, the upper end and the lower end of the micro-fluidic chip body are connected with a liquid inlet assembly and a liquid outlet pipe respectively, and the micro-fluidic chip further comprises a liquid drop cover body, a limiting piece, a buoyancy triggering piece, a distance adjusting plate piece and a driving piece. The liquid drop cover body is arranged at the lower end of the liquid outlet pipe, so that liquid drops are effectively prevented from being in contact with air in the dropping and collecting process to influence the purity of the liquid drops, and meanwhile, the liquid drops are prevented from splashing; the driving piece and the distance adjusting plate piece are arranged in the liquid collecting box, so that the liquid outlet end of the liquid outlet pipe and the highest liquid level in the liquid collecting box are always kept between a low liquid level line and a high liquid level line, overlarge fall is avoided, the bottom end of the liquid outlet pipe is also prevented from being inserted into liquid, and the liquid drop collecting effect is further guaranteed.