31results about How to "Improve the universality of application" patented technology

The invention provides a convenient-to-operate insulated baffle for charged replacement of an arrester on a switch crossarm. The insulated baffle comprises an insulated baffle main leaf and an insulated baffle auxiliary leaf, wherein the baffle main leaf and the baffle auxiliary leaf are connected through hinges, and the hinge opening angle does not exceed 90 degrees; the baffle main leaf and thebaffle auxiliary leaf are both in a rectangular plate shape, and the lower surface of the baffle main leaf is provided with a fixing device for fixation to the switch crossarm; the fixing device comprises a fixing block, a locking block cooperating with the fixing block and an adjustment screw; the fixing block comprises two side walls and a connecting wall connected with the two side walls, wherein the two side walls are arranged in a spaced mode to form an installation slot, the locking block is located in the installation slot, and one side wall of the fixing block is provided with a screwhole; one end of the adjustment screw is connected with the locking block, the other end of the adjustment screw penetrates through the screw hole, and the adjustment screw can move along the axial direction of the screw hole to adjust the space between the locking block and the other side wall of the fixing block; and the unfolded insulation baffle is placed on the switch crossarm to realize insulated sheltering of components and equipment on the switch crossarm, so that operation is convenient.

The invention discloses an automatic drive test system. According to the system, a device bracket, a drive mechanism, an automatic positioning mechanism and a control mechanism are arranged, wherein the device bracket is provided with a cavity for receiving a box type sampler to be detected, the upper surface of the device bracket is provided for placing the positioning mechanism, the drive mechanism is arranged on the positioning mechanism and is provided with a cross plate test assembly, the cross plate test assembly is inserted into clay to be detected and measures the shear strength, and the control mechanism is provided with a control circuit and is provided for outputting a starting test command to the drive mechanism and real-timely reading the rotation angle value of the cross plate test assembly and the corresponding torque value. According to the present invention, the automatic drive test system relates to, but is not limited to clay test equipment; and with the automatic drive test system, the drawbacks in the prior art can be effectively overcome, the shear strength test of the soft clay with the high water content can be achieved, and the precision of the final test result can be effectively ensured.

The invention discloses a starry sky projection lamp. The starry sky projection lamp comprises a multi-color light source array, an optical path, a first diaphragm, a second diaphragm, a collimating lens and a reflector array which are sequentially arranged along optical path, and further comprises a support for installing the multi-color light source array, the first diaphragm and the second diaphragm, the multi-color light source array comprises at least two light sources which are arranged in a spaced mode and are different in color, the first diaphragm is provided with a first light passing hole which is in one-to-one correspondence with the light sources in the multi-color light source array and is smaller than the light-emitting surface of the corresponding light source, a second light passing hole corresponding to the first light through hole one to one is formed in the second diaphragm, and the minimum incidence angle of the light source projected to the first light passing hole corresponding to the adjacent light source is larger than half of the collection angle of the light ray of the second light passing hole corresponding to the first light passing hole. According to the starry sky projection lamp, the starry sky projection effect of multiple colors can be achieved, more projection requirements can be met, the size of the light spots can be reduced, more stars areprojected, stray light emitted from the first light passing hole is well shielded, and the starry projection effect is improved.

The invention discloses a two-gear variable-speed electric vehicle rear axle reducer assembly with an electromagnetic bidirectional clutch. The two-gear variable-speed electric vehicle rear axle reducer assembly with the electromagnetic bidirectional clutch comprises a reducer shell, the electromagnetic bidirectional clutch, a two-stage reduction high-low gear pair, a shift shaft assembly and a differential mechanism assembly, wherein the electromagnetic bidirectional clutch is arranged on one side of the top in the reducer shell, the electromagnetic bidirectional clutch is connected with the shift shaft assembly arranged on the other side of the top of the reducer shell, the shift shaft assembly is connected with a gear shifting mechanism, the electromagnetic bidirectional clutch is meshed with the two-stage reduction high-low gear pair arranged at the lower portion, and the two-stage reduction high-low gear pair is meshed with the differential mechanism assembly arranged at the bottom. According to the two-gear variable-speed electric vehicle rear axle reducer assembly with the electromagnetic bidirectional clutch, free shifting of high gear and low gear in the motion process is achieved, the cruising ability of an electric vehicle is improved, the operation is convenient, customers from different regions can drive on road surfaces of different conditions, gradeability and driving speed are achieved at the same time, driving mileage of the vehicle is also increased, and the application universality of the product is improved.

Embodiments of the present application provide a low-frequency magnetic field measurement method, device, electronic device, and storage medium. The method includes: applying a preset digital weighting processing method, and performing weighting processing on a time-domain signal of a target low-frequency magnetic field based on a target standard limit value , to obtain the corresponding digital time-domain waveform signal, in which the digital weighting processing method corresponds to the standard limits of multiple standards, and the target standard limit is one of the standard limits of multiple standards; for digital time-domain waveform signals Perform digital detection processing to obtain the corresponding digital detection voltage; calibrate the sampling result of the digital detection voltage to obtain the magnetic field amplitude of the target low-frequency magnetic field and / or the percentage of the magnetic field amplitude relative to the target standard limit. The present application can be applied to the weighted measurement of the standard limits of various standard versions, thereby effectively improving the applicability of the low-frequency magnetic field measurement, and ensuring the accuracy and reliability of the low-frequency magnetic field measurement.

The invention discloses a compressed garbage transfer station device which is convenient for adjusting the width of the bearing surface. A limit mechanism is installed on one side, and an auxiliary driving mechanism is installed on one side of the support mechanism. The invention drives the ejector rod to extend through the oil cylinder. Since the outer walls on both sides of the casing are conductive structures, the metal plate is pushed out of the inner cavity of the casing. , and the No. 2 slide rail is conductively connected with the No. 1 slide rail, and the rollers run along the No. 2 slide rail, so that the metal plate is located above the L-shaped bottom plate, thereby changing the width of the carrying device, and different types of garbage trucks can be parked. The wide applicability is improved, the vehicle passes the slope on the triangular block, which is convenient for the vehicle to drive to the load-bearing device, and the upper surface of the triangular block is integrally formed with anti-skid blocks, which can increase the friction with the vehicle tires, and further facilitate the vehicle to drive to the load-carrying device. on the device.

The embodiment of the present application provides a transformer core side column shielding forming device and method, the device includes: a side plate, a top plate, a fixing frame, a side plate moving drive assembly and a top plate moving connector fixedly connected to the fixing frame respectively; The inner end surface of the plate is fixedly connected with the moving drive assembly of the side plate, and the shape of the outer end surface of the side plate is the same as the shape of the inner wall of the target edge of the transformer core side column shielding structure, so as to form the transformer iron core side column shielding structure The edge inner wall of the top plate; the inner end surface of the top plate is fixedly connected with the moving connector of the top plate, and the shape of the outer end surface of the top plate is the same as that of the target bottom inner wall of the transformer core side column shielding structure, so as to form the The bottom inner wall of the shielding structure of the transformer core side column. The application can realize the forming of shielding devices for side columns of transformer iron cores with different sizes and specifications, has strong pertinence, can effectively improve forming precision, and can effectively improve forming efficiency.

The invention discloses a staged fire extinguishing and rescue system and method for a high-altitude tunnel. The system includes a fine water mist fire extinguishing subsystem, an anti-sedimentation and smoke control subsystem, an anti-heat barrier effect and smoke suction and penetration subsystem, and a segmented oxygen supply subsystem. . The fine water mist fire extinguishing subsystem controls the fine water mist nozzle through the sensor controller, and sprays water mist according to the temperature; the anti-sedimentation smoke control subsystem adjusts the position of the main body of the jet fan through the lifting and sliding device to prevent the smoke from settling and spreading; the heat barrier effect and The smoke inhalation sub-system prevents inhalation by charging heated nitrogen gas at the smoke outlet where the smoke inhalation may occur, opens the vertical retaining wall, and adjusts the shutters to prevent the inhalation; Guarantee the oxygen supply and basic medical treatment for those who escaped to the cross passage. The invention can realize timely control of fire and smoke in case of fire in a high-altitude highway tunnel, and guarantee the basic survival and medical conditions of rescue personnel in the high-altitude tunnel.