87results about How to "Adjust pitch angle" patented technology

The invention discloses a conformal spherical antenna array which comprises a radome, an antenna array, a shield cover, a base plate and a supporting device. The antenna array is arranged on the base plate. The shield cover is located between the antenna array and the base plate. The antenna array is covered by the radome. The base plate is provided with an annular groove. The lower edge of the radome is inserted into the annular groove and is positioned by a locking positioning mechanism. The supporting device is arranged at the bottom of the base plate. The antenna array comprises a first skeleton, a second skeleton, a third skeleton and an antenna. The first skeleton, the second skeleton and the third skeleton are all arranged within the same ellipsoidal plane. The inclination angle of each skeleton is different. The first skeleton and the second skeleton are tangent to the ellipsoidal plane. The sphere tangent lines of the third skeleton and the second skeleton form a tangent angle a. The conformal spherical antenna array provided by the invention has the advantages of high antenna radiation uniformity, low production cost and stable structure.

The invention discloses a base component of a bladeless fan. The base component comprises a rotating plate and a base plate component, the rotating plate is used for supporting a fan component, the center of the rotating plate is axially connected to the center of the base plate component by a rotating shaft component, the rotating plate is positioned above the base plate component, a motor is disposed on the rotating plate, a rotating mechanism is arranged between the rotating plate and the base plate component, a motor drives the rotating mechanism to enable the rotating plate to rotate, the base plate component consists of a fixed base and a movable plate, the upper surface of the fixed base is an inwards concave spherical surface, the lower surface of the movable plate is an outwards convex spherical surface, the upper surface of the fixed base and the lower surface of the movable plate match with each other, and a sliding mechanism is arranged between the fixed base and the movable plate. The base component of the bladeless fan has the advantages that the motor drives the rotating mechanism to enable the rotating plate to rotate, accordingly, the fan component rotates, an annular nozzle in the fan component rotates, and the horizontal air outlet direction of the fan is adjusted; and the movable plate can move on the fixed base owing to the sliding mechanism, so that the fan component can be inclined forwards or backwards, and the air outlet pitching angle of the fan can be adjusted.

The invention discloses an embedded plough and a working method thereof. The embedded plough is used for laying submarine cables. The embedded plough comprises a rack, a coulter system, digging depthadjusting systems and a control system, wherein the coulter system is arranged on the rear side of the rack and used for digging submarine soil; the digging depth adjusting systems are arranged on twosides of the front portion of the rack in a left-right symmetry mode and used for adjusting the digging depth and the pitching angle of the portion, which is in contact with the seafloor, in front ofthe embedded plough; and the control system is used for controlling the embedded plough to operate. According to the embedded plough and the working method thereof, by arrangement of the digging depth adjusting systems, the ditching depth of the embedded plough is continuously adjusted, and the pitching angle of the portion, which is in contact with the seafloor, in front of the embedded plough is adjusted so as to adapt to the complex seafloor topography.

The invention discloses a supporting device for a computer screen. The supporting device comprises a base; a supporting rod is arranged on one side of the top surface of the base in a hinged mode; a mounting block is arranged at the other end of the supporting rod in a hinged mode; a first threaded rod is arranged on the other side of the top surface of the base in a hinged mode; an adjusting rotating column is connected to the other end of the first threaded rod in a rotating mode; a second threaded rod is connected to the other end of the adjusting rotating column in a rotating mode; the other end of the second threaded rod is connected to the surface of one side of the mounting block in a hinged mode; a rotating shaft and a clamping column are symmetrically and fixedly arranged on the surface, far away from the second threaded rod, of the mounting block; a first movable rod is perpendicularly arranged at one end of the rotating shaft in a rotating mode; a second movable rod is connected to one end of the clamping column in a clamped mode; and a connecting block is arranged at the other end of each of the first movable rod and the second movable rod in a sliding mode. The supporting device has the advantages that the structure is reasonable, operation is easy and convenient, the computer screen can be conveniently fixed and disassembled, so that people can flexibly adjust thepitching angle of a computer, and the fatigue feeling of viewing a screen for a long time can be relieved.

Some embodiments of the present invention comprise an active wing apparatus for a motor vehicle. The apparatus comprises a wing assembly configured to reversibly deploy in a first direction from a stowed condition to a deployed condition and reversibly expand telescopically along a second direction transverse to the first direction from a compact condition to an expanded condition, wherein the wing assembly is configured to expand telescopically when the wing apparatus deploys from the stowed condition to the deployed condition.

The invention relates to a convenient-to-adjust teaching instrument. The instrument comprises a bottom plate, a lead screw, a supporting disc, a supporting plate and a blackboard, a supporting tube isarranged on the upper side of the supporting plate, a lower ring disc is arranged on the upper side of the supporting tube, an annular groove is formed in the upper surface of the lower ring disc, arolling body is arranged in the annular groove, an upper ring disc is arranged on the lower side of the middle of the supporting plate, the lower side of the upper ring disc is in contact with the rolling body, a left supporting frame is arranged on the upper side of the left portion of the supporting plate, a third bearing is arranged on the left supporting frame, a left blackboard rotary shaft is arranged on the inner side of the third bearing, a right supporting frame is arranged on the upper side of the right portion of the supporting plate, the right supporting frame is provided with a first bearing and a second bearing, the inner side of the first bearing is provided with a first gear rotary shaft, the left side of the first gear rotary shaft is provided with a first gear, the rightside of the first gear rotary shat is provided with an adjusting knob, the inner side of the second bearing is provided with a second gear rotary shaft, and the right side of the second gear rotary shaft is provided with a second gear. The instrument has the advantages that the structure is reasonable and the application range is wide.

The invention discloses a four-degree-of-freedom three-dimensional laser radar sensing device for unmanned driving. The four-degree-of-freedom three-dimensional laser radar sensing device comprises a frame module, a four-degree-of-freedom three-dimensional laser radar module, a power supply module and a control module. The frame module is used for executing an intelligent driving instruction; the power supply module is used for supplying power to the control module; the control module is used for receiving a signal and sending a control instruction; the four-degree-of-freedom three-dimensional laser radar module adopts a ball screw nut for transmission, so that a sensing device can move freely in the transverse direction and the longitudinal direction, real-time detection on the complex environment around a vehicle body is achieved, a front-back differential lifting arm is adopted, a three-dimensional laser radar transceiver can adjust the pitching angle in real time according to the road gradient, and the real-time detection on the complex environment around the vehicle body is achieved. The key information is provided for timely obstacle avoidance of the unmanned vehicle. meanwhile, the four-degree-of-freedom three-dimensional laser radar and the vehicle body are dynamically and jointly calibrated by using an excessive space coordinate method, so that the information calibration efficiency is remarkably improved. The sensing device can accurately detect the complex environment in real time, and the safety and reliability of the pilotless automobile are greatly improved.

The invention relates to a silicon chip box platform with pitching function, which comprises two positioning shafts, a protecting plate frame is connected to the two positioning shafts, the protecting plate frame is connected with the front end of the bottom of a turning plate by a rotating shaft mechanism, a fixing plate is connected to the two positioning shafts which are arranged in the protecting plate frame, a crank connecting rod mechanism which is connected with a driving device is connected to the fixing plate, the output end of the crank connecting rod mechanism is connected with the rear end of the bottom of the turning plate through a rotating block, and the top of the turning plate is connected with a silicon chip box. When a crank of the crank connecting rod mechanism swings in a reciprocating and intermittent mode at the range of 0 to 180 degrees, the silicon chip box is connected with the crank to swing in a pitching mode. The crank connecting rod mechanism which is taken as a core mechanism of the invention and the rotating shaft mechanism have simple and reasonable structures, not only can realize automatic pitching, but also can realize stable pitching, thereby solving the problems in the prior art.

The invention provides a support for supporting an envelope which consists of frame and a rolling element. The first side jointed with envelope and the second side opposite to the first side, and the rolling wheel set on the second side. The present invention also provides an electronic device with support so the user can adjust height of display panel and pitch angle of display panel by only using hand to push support or envelope to bring rolling wheel to roll for moving support frame forward or backward .

The invention discloses an automatic cleaning and maintenance device for a civil defense door. The automatic cleaning and maintenance device includes a moving device, a lifting device, a maintenance device and a cleaning device. The moving device is the base of the automatic cleaning and maintenance device, and can be controlled to travel in any direction to reach a designated position, a crawlerbelt of the moving device can easily pass through many hard roads, the lifting device can control the height of the entire device, so that the cleaning device and the maintenance device can perform high-altitude operations, the maintenance device can spray oily substances to maintain the surface so as to enable the surface not prone to rusting and enable the service life of the entire equipment tobe longer, the cleaning device can be stretched and rotated, a cleaning head is a replaceable sponge and thus can reach every position of the door to carry out cleaning, and dust and dirt are removed, the entire civil defense door is completely brand new.

The invention discloses a support structure for aerial photography of an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The support structure comprises a rotating disc, the bottom surface of the rotating disc is fixedly connected with two fixing blocks, an arc-shaped frame is arranged below the rotating disc, and the two ends of the arc-shaped frame are fixedly connected with the bottom surfaces of the two fixing blocks respectively; a sliding groove is formed in the inner wall of the arc-shaped frame, a sliding block is slidably connected into the sliding groove, a top plate is fixedly connected to the upper surface of the sliding block, and two symmetrical limiting plates are fixedly connected to the bottom face of the top plate. The unmanned aerial vehicle is reasonable in design structure; through the cooperative design of the rotating disc, the fixing blocks, the arc-shaped frames, the sliding grooves, the sliding blocks, a top plate, limiting plates and rolling wheels, when the unmanned aerial vehicle deviates in the air, due to the gravity effect, the sliding blocks can slide in the sliding grooves, and the rolling wheels can reduce friction force between the sliding blocks and the inner walls of the sliding grooves; therefore, the camera device is always in the original state, and the shooting quality is greatly improved.