7results about How to "Avoid biased situations" patented technology

The invention relates to the technical field of non-woven fabric tensile strength testing, in particular to an automotive trim non-woven fabric tensile strength testing device which comprises a testing area plate, vertical plates are fixed to the top of the testing area plate in a bilateral symmetry mode, and a through rail is fixed to the tops of the two vertical plates jointly. Positioning parts are arranged in the middle of the through track in a bilateral symmetry mode through limiting sliding blocks, a power part is arranged on the two vertical plates together, a soaking part is arranged on the rear side face of the through track, and an auxiliary assembly used for being matched with the power part is fixed to the position, located on the front side of the through track, of the top of the testing area plate. According to the automobile interior non-woven fabric testing device, the automobile interior non-woven fabric is soaked by adopting the soaking part, so that the testing result is more diversified and closer to the reality under the condition that the non-woven fabric is affected with damp, and meanwhile, the testing accuracy is improved by sampling the same automobile interior non-woven fabric for multiple times and performing contrast testing. The tensile strength of the to-be-tested automotive trim non-woven fabric can be comprehensively evaluated according to the tensile strength change of the to-be-tested automotive trim non-woven fabric in different environments.

The present invention belongs to the technical field of lithium battery detection, and specifically is a device for detecting the impact resistance of a cylindrical lithium battery, comprising an impact testing machine, wherein two lifting guide rails symmetrically arranged in a group and a base fixedly installed at the bottom are fixedly installed inside the impact testing machine, and a top plate is slidably connected to the surface of the lifting guide rails; the present invention starts a servo motor, uses a lead screw to drive a sleeve plate and an impact block to move to a suitable position, and then cuts off the power to the electromagnet in the sleeve plate. At this time, the electromagnet at the bottom of the sleeve plate will no longer adsorb the impact block, so that the impact block falls with the insertion block in the direction of the cylindrical lithium battery, so that different parts of the battery can be subjected to impact detection at one time, which greatly improves the detection efficiency and makes the detection more complete. At the same time, the position of the impact block can be conveniently adjusted for cylindrical lithium batteries of different lengths, so as to achieve the purpose of accurate detection.

This utility model relates to the field of medical device technology; and discloses a convenient and quick-connect ventilator adapter, including a connecting body. A rotating structure is provided on the outer surface of one end of the connecting body, and a first connecting tube is provided on the outer surface of one end of the rotating structure. A first mounting structure is provided on the outer surface of one end of the first connecting tube, and a ventilator interface is provided on the outer surface of one end of the first mounting structure. A second mounting structure is provided on the outer surface of the other end of the connecting body. This utility model allows the connecting body and the first connecting tube to rotate within a first sliding groove via a second sliding block, which in turn allows for rotation. This facilitates adjustment of the device's operating angle according to the patient's ventilator position and avoids deviations in the connection angle, thereby preventing increased stress between the device and the ventilator.

The utility model relates to the technical field of six-face drills, and discloses a four-milling-head mechanism of a six-face drill, which comprises a four-milling-head body, a supporting piece arranged on the periphery of the four-milling-head body and moving in the vertical direction along with the four-milling-head body, and a pressure applying plate arranged on the supporting piece, the supporting piece is provided with an adjusting piece used for adjusting the relative position of the pressure applying plate and the supporting piece in the vertical direction, so that when the four-milling-head body moves to the position where the workpiece is milled in the vertical direction, the pressure applying plate abuts against the top of the workpiece under the adjusting effect of the adjusting piece and applies downward pressure to the workpiece. When the four-milling-head body moves to the position, needing to be milled, of the workpiece, the adjusting piece adjusts the pressure applying plate so that the pressure applying plate can make contact with the top of the workpiece and apply downward pressure to the workpiece, and the situation that the workpiece warps is overcome; and meanwhile, the situation that deviation occurs between the position needing to be milled and the milling cutter due to the fact that the bottom of the workpiece is provided with milling particles is avoided, and then the machining precision of the workpiece is improved.

The application relates to the technical field of heat dissipation devices, in particular to an integrated asymmetric radiation envelope structure heat dissipation system for a computing power computer room, which comprises a heat dissipation module, a running module, a heat import optimization module, an image sensing module, a data acquisition module, a data processing module, a data analysis module and an execution module. The system preprocesses the running data of the received heat dissipation module, judges the heat dissipation efficiency of the system through the effective net radiation heat dissipation power density and a preset threshold value, adjusts the average mirror reflectivity of the photon mirror based on the judgment result, and further determines the standard effective net radiation heat dissipation power density according to the adjustment result. The application realizes the unified processing and analysis performance optimization of the heat dissipation system, effectively reduces the effective net radiation heat dissipation power density of the envelope structure heat dissipation system of the application, and improves the resource utilization rate.

The utility model relates to the technical field of optical instrument machining, and discloses a precision machining jig for an optical instrument foot stool, which comprises a base, an installation fixing assembly is arranged on the inner wall of the base, a machining jig assembly is arranged at the top of the base, and a clamping block is fixedly assembled at the bottom of the machining jig assembly. According to the precision machining jig for the optical instrument foot stool, the optical instrument foot stool is placed on the inner wall of the supporting plate, a lantern ring slides upwards, the optical instrument foot stool can be limited and fixed through the lantern ring, a sliding bolt rotates on the outer wall of a threaded strip in a threaded mode, and the optical instrument foot stool can be precisely clamped through the sliding bolt; the fixing device is simple in structure and convenient to use, manual fixing is not needed, manpower resources are saved, meanwhile, the stability of the foot stool of the optical instrument can be kept in the machining process, and the situation that deviation is caused by incomplete fixing in the machining process is effectively avoided.