75results about How to "Stay stable" patented technology

A dedicated control signal electrode is provided between pixel electrodes, and a strong electric field is generated between the control signal electrode and the common electrode to quickly and securely make an initial transition from liquid crystal molecules in a splay alignment state to the same in a bend alignment state. In addition, generating a strong electric field between the control signal electrode and the common electrode even during operation for displaying an image makes liquid crystal molecules stably stay in a bend alignment state. In this case the scan signal electrode, the video signal electrode and the common electrode, which are required for displaying an image, are not used to make a transition from liquid crystal molecules in a splay alignment state to the same in a bend alignment state and make the same stay in a bend alignment state.

An eddy carrier type wind power collection device includes a floating body and two air guiding tubes. The floating body including a compartment filled with an uprising gas having a density lower than that of air. The floating body includes a wind shear portion. The floating body further includes a floating assembly for controlling the pressure and temperature of the uprising gas. The air guiding tubes extend through the compartment of the floating body. Each air guiding tube has an air inlet and an air outlet. The air outlet includes a peripheral wall having a windward section and a guiding section. The peripheral wall of the air outlet has a cutout portion formed between the windward section and the guiding section. An air channel is formed between and in communication with the air inlet and the air outlet. A wind power generating assembly is mounted in each air channel.

The invention discloses a technology for baking and grinding high-moisture chalk through a vertical mill and belongs to the field of cement raw materials prepared by adopting high-moisture chalk raw materials. Clammy chalk with the moisture more than 25% is fed onto an inner refiner plate of the vertical mill from a feeding mouth of the vertical mill; hot wind passes through a wind chamber, a wind ring and a chamber above the refiner plate from a hot wind inlet and discharges out of the vertical mill from a hot wind outlet; zone control is performed on the moisture of materials inside the mill; the moisture of the materials is dried step by step; a powder selecting machine, the feeding mouth and the hot wind outlet are arranged at the upper part of the vertical mill; the refiner plate and mill grinding rollers are arranged inside the vertical mill; a cloth scraping plate is arranged above the refiner plate; a retaining ring is arranged at the edge of the refiner plate; the height of the retaining ring exceeds 150 mm; the wind chamber is arranged below the refiner plate; the wind chamber is communicated with the chamber above the refiner plate through the wind ring; the hot wind inlet of the mill, a material scraping device and a feeding back port are arranged in the wind chamber, the feeding back port is connected with the feeding mouth through an outer circulating system of the mill. The invention provides a simpler and energy-saving preparation technology and device for preparing the cement raw materials by adopting the high-moisture chalk raw materials.

The invention relates to the field of hydraulic machinery, in particular to an operation-condition-adjustable water-jet propulsion pump. The water-jet propulsion pump comprises a pump body, wherein an impeller which is fixed on a pump shaft is arranged in the pump body; the side, close to the outlet of the pump body, of the impeller is provided with a flow guiding component; and the position of the flow guiding component is adjustable along the water flow direction. A flow guiding component in a water-jet propulsion pump with a traditional structure is fixed, while according to the operation-condition-adjustable water-jet propulsion pump, the flow guiding component is innovatively arranged to be movable along the direction of the pump shaft, so that when the flow guiding component moves, the distance between the flow guiding component and the pump body, namely a nozzle changes, and therefore the flow parameter adjustment of the pump is realized; furthermore, when the flow guiding component is located at different axial positions, the distances between the flow guiding component and the pump body, namely the nozzle are different, so that control on operation parameters of the pump can be realized by adjusting the positions of the flow guiding components; and therefore, the pump operates at optimum working conditions, and the aim of improving the propulsion efficiency of the pump is finally achieved.

The invention discloses a longitudinal back and forth movement type material conveying device, and relates to the technical field of material transportation. The longitudinal back and forth movement type material conveying device comprises a main frame, wherein a traction mechanism, a driving mechanism, a stabilizing mechanism, a transmission mechanism and a supporting mechanism are arranged on the main frame; a base is fixedly arranged at the bottom of the main frame; six sets of brake wheels are movably arranged at the bottom of the base; a supporting column is fixedly arranged between the top of the inner side of the main frame and the top of the base; and two sets of bearing frames are arranged at one side of the main frame. According to the longitudinal back-and-forth movement type material conveying device, one-up and one-down twice transportation operation can be conducted at the same time at a time, the labor burden of operators is relieved, the practicability of the device and the production and machining efficiency of factories are improved, the device can be conveniently moved or fixed to any place and has high stability and flexibility, various requirements of material conveying operation are met, and application and popularization are facilitated.

The invention provides a cell reselection method and a mobile terminal, and relates to the technical field of communication. The cell reselection method comprises the following steps: detecting whether a conflict exists between the reselection priority configuration of a current service cell and a switchable cell in a cell reselection process; and if so, determining one of the current service celland the switchable cell as a resident cell according to preset parameters, wherein the preset parameters are parameters other than reselection priority configuration parameter. The scheme of the invention is used for solving the problem of business anomaly since the mobile terminal cannot stably reside in a cell with better service quality due to the reselection priority conflict between the cells.

The invention discloses a display lifting device comprising a support, a lifting base and a tension mechanism. The support is provided with a containing space, the lifting base is provided with a sliding block arranged in the containing space in a sliding fit mode, and friction force exists between the sliding block and the inner wall of the containing space. The tension mechanism is installed inthe lifting base and comprises a coil spring, a coil spring base, a pulley assembly and a pull rope. The coil spring base is installed in the lifting base in a rotating manner, one end of the pull rope is fixedly connected with the coil spring base, and the other end of the pull rope bypasses the pulley assembly to be connected to the sliding block. The coil spring comprises a free end and a winding drum part, the free end is fixedly connected with the coil spring base, and the winding drum part is arranged in the lifting base in a rotatable manner. By means of the display lifting device, thesize of the support is greatly reduced, cost is reduced, and the display lifting device is simple in structure and easy to machine and assemble.

The invention belongs to the field of building doors and windows, and particularly relates to an adjustable seal window. The adjustable seal window comprises a window frame body, a first soft slice, rubber columns, a first cavity, a second cavity, a push rod and an air sac, wherein the first soft slice is adhered to the surface of the window frame body, the edge of the first soft slice is in a wave shape, third cavities are formed in the centers of all the rubber columns, the first cavity is formed in the left side of the window frame body, a cylinder body is arranged in the first cavity, theupper side face of the cylinder body is connected with the upper side face of the first cavity through a third spring, a first rod is fixedly connected with the front side face of the lower end of thepush rod, and first springs are evenly arranged in the air sac. The adjustable seal window is used for sealing and ventilation adjustment of a bathroom, and can drive the push rod to compress the airsac by pulling the first rod downward, and then closes gaps among the rubber columns, thereby achieving sealing for the bathroom, and furthermore expands the air sac by pulling the first rod upward to drive the push rod to move up, and then enlarges the gaps among the rubber columns, thereby achieving ventilation between the bathroom and the outside.

The invention provides a material hoister for building engineering construction. The material hoister for building engineering construction comprises a top driving structure, a suspension structure, atransportation structure and a bottom supporting structure. Workers transport engineering materials to be transported into an elevator car, the hoister is operated to ascend, the hoister drives a cable through a driving motor at the top to drive the elevator car to ascend, the elevator car is stabilized by fixed pulleys on the two sides of the elevator car in the ascending process, and when the elevator car reaches a floor to be reached, the elevator car stops ascending, a first driving motor supplies power to drive an electronic baffle to extend out, and a clamping block exerts force on theelectronic baffle. The material hoister for building engineering construction has good safety protection devices. Elevator doors and metal fences in the elevator car effectively prevent safety hazardsof construction materials falling from high altitudes. Through the operation of the electronic baffle and the clamping block in an elevator slide rail, the elevator can be effectively prevented fromfalling, the stability and the safety of the hoister are greatly improved, and convenience is brought to people.

The invention discloses an attendance checking identification device applying the Internet of Things, wherein the attendance checking identification device includes a mounting bracket, a camera and adustproof box; the camera is placed in a dustproof box; the mounting bracket includes a stand column, a rectangular groove is formed in the side wall of the stand column, and a sliding rail made of steel bars is arranged in the rectangular groove. The attendance checking identification device also includes a magnetic sliding block mechanism; one end of the magnetic sliding block mechanism is connected with the tail end of the dustproof box, and the other end is mounted on the sliding rail and can slide along the axial direction of the sliding rail; four shock absorption columns are arranged inthe dustproof box, one end of each shock absorption column is fixed with the inner wall of the dustproof box, the other end of each shock absorption column is fixed with the corner end of the camerathrough a locking hook, and the four shock absorption columns are in central symmetry about the central point of the camera. The axial height can be conveniently adjusted without directly moving the camera, the damage or destroy of a camera body caused by adjustment of the camera is avoided, and the attendance checking identification device has the advantages of dust prevention and strong shakingresistance.

The invention discloses a law enforcement recorder for patrol, a control method and a working method thereof, comprising a law enforcement recorder body, an unmanned aerial vehicle and a background server. Using a combination of unmanned aerial vehicles and law enforcement recorder body, The system can arrive at the scene at the first time for recording shooting, and can quickly arrive at the scene when the road condition is poor or the police officer is far away. The shooting of the scene can be transmitted to the background server through the 4G module, so that the situation of the scene canbe checked or real-time monitored, and the situation of the scene can be accurately understood. Both the UAV and the law enforcement recorder are equipped with 4G modules, which can transmit data with the background service in real time, and record the scene from multiple angles and near and far focus.

The invention relates to a lighting lamp which comprises a lamp body and a mounting rack used for mounting the lamp body. The lamp body is provided with a light source. The lamp body and the mounting rack are connected in a rotatable mode through a damping rotating device. Since the lamp body and the mounting rack are connected through the damping rotating device, the lamp body can rotate relative to the mounting rack to adjust the lighting angle, and the lamp body can stably stay at a predetermined angle without external force.

The invention relates to an electronic device shell. The electronic device shell includes a shell and a bracket mounted in the shell, wherein the bracket is used for fixing a power source. The electronic device shell further comprises a rotation shaft and a supporting component which sleeves the rotation shaft; the bracket is rotationally fixed onto the shell through the rotation shaft; two opposite ends of the supporting component are fixed onto the bracket and the shell respectively; and when the bracket rotates along a direction relative to the shell, the supporting component is deformed so as to support the bracket, so that the bracket can be prevented from rotating along a second direction opposite to the first direction.

The invention relates to a rolling ball system motion control method based on multi-closed-loop cascade control, and the control method is applicable to a rolling ball system which takes a camera as asingle sensor. The rolling ball system comprises a rolling ball, a target point, a flat plate, a camera and a control mechanism, wherein the control mechanism controls the motion of the rolling ballby adopting a multi-closed-loop cascade control scheme; according to the multi-closed-loop cascade control scheme, the data information acquired in real time through the camera is used as feedback, and the motion of the rolling ball is adjusted; the multi-closed-loop cascade control scheme comprises the following steps that double-closed-loop cascade control based on a speed ring and an acceleration ring is adopted when the distance between the rolling ball and a target point is greater than a preset first distance; the speed ring takes the speed of the rolling ball on the flat plate as the feedback signal; and the acceleration ring takes the acceleration speed of the rolling ball on the flat plate as the feedback signal. Compared with the prior art, the motion control method of the rolling ball system is easy to implement, the control effect is high, and the rolling ball can quickly, accurately and stably reach the target point on the flat plate.

The invention belongs to the technical field of unmanned aerial vehicles, and especially relates to an unmanned aerial vehicle landing buffer device. Aiming at the problems that an existing unmanned aerial vehicle needs to land after executing a flight task, existing unmanned aerial vehicles land rigidly, at the moment of landing, the unmanned aerial vehicle can face large impact force, and the impact force can influence the service life of the fuselage of the unmanned aerial vehicle, the scheme is provided, the unmanned aerial vehicle landing buffer device comprises a supporting base, two symmetrically-arranged buffer rods are fixedly installed at the top of the supporting base, the same landing plate is fixedly installed at the tops of the two buffer rods, an unmanned aerial vehicle is placed at the top of the landing plate, and two symmetrically-arranged rotating plates are rotationally installed at the top of the landing plate. According to the landing buffering device body, soft landing of the unmanned aerial vehicle is achieved, buffering and damping are conducted at the moment when the unmanned aerial vehicle lands on the landing plate, the stability performance of a vehiclebody of the unmanned aerial vehicle is improved, and the wide market popularization prospect is achieved.

The invention discloses a server case easy to disassemble and assemble. Comprising a box body, a mounting frame, a bottom vertical plate and a first elastic buckle, wherein the mounting frame is connected to the inner walls of box body side plates on the two sides of the box body in a turnover manner; the bottom vertical plate is vertically arranged at the front end of the box body and is used for supporting the mounting frame; the first elastic buckle is connected to the bottom surface of the mounting frame; the first buckling plate is arranged on the bottom vertical plate and is used for forming clamping locking with the first elastic buckle; the limiting side edges are arranged on the two sides of the top end of the mounting frame and are used for forming limiting abutting connection with the end faces of the top ends of the corresponding box body side plates after rotating by a preset angle; and a first mounting cavity for mounting a hard disk is formed in the mounting frame. Therefore, a user can utilize part of the vertical space as the operation space, and the limitation of the operation space in the horizontal direction is broken through, so that the disassembly, assembly and maintenance operation of the hard disk and other components in the case can be conveniently and quickly realized, the operation difficulty of the user is reduced, and the operation efficiency and experience of the user are improved.

The invention discloses a hand cart for construction object-carrying ascending operation. The hand cart comprises bottom supports, a fork knife, lifting supports, a hydraulic rod, a hand handrail, rear seat supports, a fixed seat and a containing frame; the bottom supports are two parallelly-arranged steel structures; the lifting supports are mounted at the tail ends of the two bottom supports ina welded mode correspondingly; the two lifting supports are parallelly and vertically mounted on the bottom supports; the rear seat supports are mounted on the outer sides of the lower parts of the two lifting supports in a welded mode; and the two rear seat supports are parallel to the two bottom supports and arranged above the bottom supports. The problem that during ladder ascending operation,excessive materials cannot be carried is solved, and the problems that when ascending operation needs to be carried out in a construction site, a half-height fixed operating table is always manufactured firstly, the time of workers is wasted, materials are consumed, and the fixed operating table is inconvenient to use are also solved well.

The invention discloses a foggy day helicopter landing point identification unfolding platform which comprises a box body. A left-right through cavity is formed in the box body, an unfolding device isarranged in the cavity, the unfolding device can be properly unfolded or completely unfolded and can adapt to the process of falling off from a helicopter and the process of completely unfolding to wait for landing of the helicopter, and fixation on a natural soil layer of a small-gradient mountainous area can be realized; a helicopter tail position detecting device is arranged at the front sideof the unfolding device, the helicopter tail position detecting device is used for detecting whether a helicopter tail has enough staying positions or not, and a parallel detection device used for detecting whether a helicopter body stays horizontally or not is arranged at the lower side of the unfolding device; and a moving device used for driving the box body to be fixed to the lower side of a helicopter or fly in the air is arranged at the upper side of the unfolding device, and the helicopter tail position detecting device can detect whether a helicopter tail space meets the staying requirement or not.

The embodiment of the invention provides a communication signal detecting and positioning method, which comprises the following steps of: moving a first base station and a detecting and positioning device to an area where to-be-positioned communication equipment is located, performing frequency sweeping by the detecting and positioning device, and acquiring a frequency point to which the to-be-positioned communication equipment is to be switched according to a frequency sweeping result; accessing to-be-positioned communication equipment through a first base station, establishing a pilot frequency cell according to a frequency point to which the to-be-positioned communication equipment is to be switched, and switching the to-be-positioned communication equipment to the pilot frequency cell;the detection positioning device communicates with the to-be-positioned communication equipment to obtain an energy value fed back by the to-be-positioned communication equipment, and the direction and the position of the to-be-positioned communication equipment are determined according to the energy value fed back by the to-be-positioned communication equipment. According to the embodiment of the invention, the to-be-positioned communication equipment stably resides in the pilot frequency cell, so that the detection positioning device stably communicates with the to-be-positioned communication equipment, and accurate positioning of the to-be-positioned communication equipment is realized.

The invention discloses a face recognizer with a dual locking function. The face recognizer comprises a mounting plate and a camera, wherein the mounting plate is a strip-shaped plate, a rectangular groove is formed in the plate surface of the strip-shaped plate, and a sliding rail made of steel bar strips is arranged in the rectangular groove. The face recognizer further comprises a magnetic sliding block mechanism, wherein one end of the magnetic sliding block mechanism is connected with the tail end of the camera, the other end of the magnetic sliding block mechanism is arranged on the sliding rail and can axially slide along the sliding rail, a magnetic limiting block is further arranged at the lower end of the magnetic sliding block mechanism, a semi-closed arc-shaped groove is formedin one end of the magnetic limiting block, the arc-shaped groove is clamped on the sliding rail, the other end of the magnetic limiting block is fixed with an arc-shaped supporting rod, the inner concave surface of the arc-shaped supporting rod is vertically downward, an elastic ball is fixed at the free end of the arc-shaped supporting rod, and the elastic ball is in contact with the bottom endof the camera. According to the face recognizer, the axial height of the camera can be conveniently adjusted without touching the camera, injury or damage to a body due to the fact that the camera isadjusted can be avoided, and the anti-shake and anti-seismic functions are achieved.