42results about How to "Easy and flexible maintenance" patented technology

The invention discloses a light-emitting diode (LED) grid screen which comprises a hanging beam and a plurality of unit screens. The unit screens are combined to form a large screen hung under the hanging beam. Each unit screen comprises an electrical appliance box, two lateral frames arranged in a left-right mode and two modules arranged vertically. The two modules arranged vertically are connected through the electrical appliance boxes and the two lateral frames, the electrical appliance boxes are installed in the middle portion of the back sides of bottom casings of the two modules, and the two lateral frames are respectively installed on the left side and the right side of the back sides of the bottom casings of the two modules. The hanging beam comprises a plurality of main beams, a plurality of connecting beams, hanging devices and unit screen connecting devices, wherein the end portions of adjacent main beams are connected through the connecting beams. The hanging devices are fixed at the upper portions of the main beams, and the unit screen connecting device is arranged at the lower portions of the main beams, and the unit screen connecting devices are arranged at lower portions of the main beams. The LED grid screen is simple in structure, the display screen is fixedly installed in a mode that the screen is hung through the hanging beam, and the manufacture cost of a display screen fixing structure frame is remarkably reduced. The LED grid screen adopts a modular assembling mode, is high in dismantling efficiency and simple and flexible in maintenance, can save manpower and material resources and greatly meets the market demand.

The invention discloses a double-row multi-shaft pile machine which is an important improvement on the basis of the disclosed patent multifunctional ultra-large-diameter stirring pile machine provided with torsion compensation device (ZL201520547506.4). The double-row multi-shaft pile machine can punch six pile holes in two rows at most each time, and the machined pile holes can be distributed transversely or longitudinally. A tower of the pile machine is I-shaped and erected on an upper underframe platform transversely or longitudinally, a row of underneath type square rotary tables are arranged at the lower part of each of two sides of the tower, the number of the square rotary tables in each row is 1-3, one power system drives one or two square rotary tables, the square rotary tables are used for driving hollow drill pipes to rotate forwards or reversely, and every three or two hollow drill pipes share one pressurization system. The pressurization systems are used for driving drill bits to perform pressurization downwards when the hollow drill pipes rotate clockwise to drill downwards or perform pressurization upwards when the hollow drill pipes rotate anticlockwise and the drill bits are lifted. The pile machine is good in stability, high in adaptability, high in operation efficiency, capable of meeting requirements of different pile models and high in cost performance, and the quality of formed piles is high.

The invention relates to a top control panel for an aircraft cockpit and an installation method thereof. The top control panel comprises a shell and a plurality of control panels, wherein the shell is provided with a guide rail positioned in the shell, and an installation angle sheet, a connector interface and a ventilation opening which are positioned on the shell; the plurality of control panels are arranged on the guide rail in the shell in a quick connection mode; and the plurality of control panels are arranged in the shell, so that the top control panel has an integrated structure. The invention also relates to a method for installing the top control panel for the aircraft cockpit.

The invention relates to a method and device for rapidly measuring the flatness of keyboard key caps based on structured light imaging. The method comprises the steps that S1, a structured light modeis designed, projection is carried out, and generated structured light forms two clear light stripes at the upper and lower ends of each keyboard key cap of a to-be-detected keyboard respectively; S2,multiple cameras acquire image sequences, wherein after a detection signal is received, the cameras collect the keyboard image sequences which are encoded by the structured light; S3, an image is spliced, wherein the image sequences are spliced to form the complete full-scale keyboard image; S4, the key caps are subjected to modeling, wherein key cap masks and position information of each key capin the keyboard image are obtained manually; S5, the flatness of each keyboard key cap can be rapidly detected by utilizing a flatness algorithm detection algorithm. The device is used for implementing the method. The device has the advantages of being high in automation degree, high in detection efficiency, easy to implement, easy to maintain and the like.

The operating mechanism includes body case, end cover, connection cover, windings on two sides on cavity, steel magnet between windings, magnetic core slider with shaft passing through windings and center of steel magnet forms sliding fit to end cover and connection cover. Manual emergency switch opening device is fixed outside the connection cover. The switch-opening device is composed of shell body, rotational thrust magnet steel and slip thrust magnet steel, which is connected to main shaft fixedly. The disclosed mechanism through emergency switch opening device realizes emergency switch opening by manual operation without electricity supplied. Features are fast speed for opening switch, and good vacuum arc extinguishing performance.

The embodiment of the invention discloses a power unit and a high-voltage electricity conversion device. Capacitor modules can be freely added according to different capacities, power units with different power sections can be obtained, and the whole device is small in size and low in structural cost. The power unit comprises a left power device module, at least one capacitor module, a right power device module and at least one printed circuit board control panel, wherein the left power device module, the at least one capacitor module and the right power device module are sequentially connected and combined linearly to form a box structure, and the PCB control panel is arranged on the left power device module and / or the right power device module connected with the capacitor module.

The invention relates to an integrated high-voltage electrical box for a battery system, in which high-voltage electrical components of the battery system are installed, and the high-voltage electrical components include positive electrical components, negative electrical components and functional electrical components; the electrical box includes an upper cover and an installation base, the upper cover is detachably connected to the installation base, and the high-voltage electrical components are installed between the upper cover and the installation base; the side of the installation base connected to the upper cover There is a mounting part for installing the positive electrical components, negative electrical components and functional electrical components and insulating and separating the positive electrical components, negative electrical components and functional electrical components. The electrical box of the present invention integrates the positive electrical components, negative electrical components and functional electrical components of the high-voltage electrical components of the battery system into an integrated structure by setting the installation part, so that the battery system has a high degree of integration and a large space utilization rate. Small installation space, flexible and convenient maintenance.

The invention discloses a trapezoidal power station for automatically rising still water and recycling water, relates to the field of power generation, and solves the problem of high cost. Water in a water reservoir or a river automatically flows into an upper water storage tank; the bottom of the upper water storage tank is connected with a direct-through pipe; the top end of the direct-through pipe is connected with a water plug and a nylon rope in a sleeving way; the other end of the nylon rope is fixedly connected with a buoy; the bottom of the upper water storage tank is connected with a water inlet pipeline; the other end of the water inlet pipeline is connected with a pressure pump; the maximum pressure is quickly generated for collision by utilizing the inertia of drop water flow in the upper water storage tank so as to achieve multiple water hammer effects to automatically extrude and rise the water with extremely high pressure to the lift height; two large row wheels and a center shaft are connected with a plurality of blades; the two ends of the center shaft are connected with bevel gears and then are meshed with horizontal axis bevel gears; the large row wheels rotate synchronously. Water flows down to the middle part of each layer of each trapezoidal large row wheel in sequence through a bell-mouthed funnel; the center shaft rotates to drive a multi-layer power generator group to generate power; the problem of energy crisis is solved effectively. The trapezoidal power station for automatically rising the still water and recycling the water is simple and practical in structure, and long in service life.