34results about How to "Take off smoothly" patented technology

The invention discloses a process for manufacturing a Wolter-I reflector by means of copying. The process includes the following steps that: a precision mandrel used for copying is manufactured; a DLCfilm is applied by means of the PVD (Physical Vapor Deposition) process; a gold film reflective layer is applied by means of the PVD process; a reflector shell is obtained through electroforming; thesurface of the reflector shell is trimmed; a reflector is released from the mandrel in a low-temperature refrigeration room by using a mold release device; and the surface of the reflector is washed.According to the process of the invention, DLC is applied between the copying gold film and the surface of the mandrel so as to be adopted as a release layer, and therefore, the gold film can be effectively prevented being damaged, and the smooth release of the gold film from the mandrel can be facilitated; the gold film is plated at the rotation surface and two end surfaces of the mandrel simultaneously, and therefore, electroforming nickel can be prevented from infiltrating between the gold film at the end surfaces of the mandrel and the surface of the mandrel during an electroforming process; electroforming time can be prolonged, the strength of the reflector shell is increased, the deformation of the reflector shell is prevented, and the reflector shell is easy to shell, transport andinstall; and the mandrel is made to be separated from the reflector shell through an auxiliary shelling device in the low-temperature room, and therefore, the manufacturing cost increase of the reflector and health hazards can be avoided.

The invention discloses a hand-held water chestnut picker. The picker includes a holding rod, a grip, a handle, a connecting shell, a U-shaped shell, a sleeve shell, a lower stabilization disc, a griprod, a stem cutting device and a driving device. One end of the grip rod is fixedly connected with the connecting shell, the end, away from the holding rod, of the connecting shell is fixedly connected with the U-shaped shell, the U-shaped shell is internally provided with a sleeve shell, the two sides of the sleeve shell are communicated with the two ends of the U-shaped shell, the bottom of thesleeve shell is internally and rotatably connected with a rotating shaft through a bearing, one end of the bearing passes through the sleeve shell and is fixedly connected with the lower stabilization disc, the inner wall of the top of the sleeve shell is fixedly connected with a support rod, the side, near the rotating shaft, of the support rod is slidably connected with a rack, the outer side of the rotating shaft is sleeved with and fixedly provided with a gear column, and a gear is meshed and connected with a gear column. When the picker is used for picking water chestnuts, the picker isconvenient and fast to operate, the picking efficiency is increased, the picking range is increased, and some water chestnuts which are difficult to reach or pick manually can be conveniently picked.

The invention discloses an unmanned aerial vehicle automatic reset platform and is applied to an unmanned aerial vehicle with four universal wheels at the bottom. The platform comprises a supporting table, wherein a downwards-sunken reset groove is formed in the middle of the supporting table, positioning parts are arranged at four corners of a bottom face of the reset groove respectively, a guide face is connected between every two adjacent positioning parts, and the middle of each guide face is higher than two ends of the guide face; a side face of the reset groove is a gradual change face connected with the outer side edge of the guide face. The automatic resetting platform for the unmanned aerial vehicle has advantages of simple structure, small occupied space, low cost, capability of realizing automatic resetting of the unmanned aerial vehicle, convenience in taking off of the unmanned aerial vehicle and the like.

The invention belongs to the technical field of information processing and control, and discloses a method and system for automatic landing and charging of a miniature quadrotor. The method for automatic landing and charging of a miniature quadrotor includes: early warning of electric power of a miniature quadrotor , use GPS to locate the micro quadrotor and fly directly above the ground relay station; the camera shoots the micro quadrotor, performs background difference, locates, captures, and tracks the micro quadrotor; combined with the differential GPS information sent back from the micro quadrotor and the ground, Read the height of the micro-quadrotor, perform 3D positioning, and guide the micro-quadrotor to land autonomously. The invention can automatically control the take-off and landing of the miniature quadrotor, which saves manpower. At the same time, the opening and closing device and the frame can ensure that the miniature quadrotor will not be damaged in special weather. The takeoff and landing of the existing domestic drones are mostly completed on the ground. , there is no fixed liftable opening and closing structure to ensure the preservation and smooth take-off of the drone.

A one-piece body-shaping underwear, which belongs to the technical field of clothing, includes a jacket and trousers, the front of which is an integral one-piece structure, and the back is an open split structure; Hem; the back top of the trousers and the back hem can touch each other or cover each other, and the hip circumference of the back trousers will be lengthened by 3-7%; its beneficial effect is that it can highlight and shape the body curve and facilitate toileting; the cover of the back top of the trousers and the back hem There are no zippers, buttons or Velcro at the joint, which can avoid pushing the side fat forward and backward, and avoid skin depression; the rear trousers structure or the lower arc structure of the rear trousers, which account for more than half of the waistline, can be used more smoothly when going to the toilet The curved structure of the rear hem can cover the hip cup, enhance the buttocks, highlight the body curve, and achieve the effect of body shaping; lengthening the hip circumference of the rear pants can enlarge the hip cup, so that the overall fat of the buttocks can be better improved and increased. The hip-lifting effect can also be used to take off the bottom of the pants more smoothly when going to the toilet.

The invention discloses a stamping die of an automobile back door lock reinforcing plate, relating to the technical field of manufacturing of stamping dies. The stamping die comprises an upper die seat and a lower die seat, wherein the lower end of the upper die seat is sequentially provided with an upper clamping plate, an upper template and a molding convex die; edge overturning stamping heads are arranged on the two sides of the molding convex die and penetrate through the upper template and the upper clamping plate to be connected with the upper die seat; the upper clamping plate is provided with a plurality of loading and unloading springs; a plurality of loading and unloading bolts connected with the upper template are hung on the upper die seat; a lower base plate and a molding concave die are sequentially arranged at the upper end of the lower die seat; lower templates are arranged on the two sides of the molding concave die; edge overturning grooves corresponding to the edge overturning stamping heads are formed between the lower template and the molding concave die; a plurality of loading and unloading springs are arranged on the lower base plate; the lower die seat is provided with a plurality of loading and unloading bolts connected with the molding concave die. Compared with the prior art, edge overturning can be carried out when a workpiece is stamped and molded and all machining procedures of the automobile back door lock reinforcing plate are finished; the workpiece does not need to be repositioned and is accurate in positioning, and the product quality is stable.

The UAV launching device includes a launching platform, a rotating platform and a launching base. There are four walking wheels at the bottom of the launching base. The rotating platform is connected to the upper surface of the launching base through a thrust bearing. station and a rotating power mechanism for driving the rotation of the rotary table, the length direction of the launch platform is set along the front and rear directions, the rear bottom of the launch platform is hinged on the rear side of the rotary table, and the front bottom of the launch platform is connected to the front side of the rotary table. There is a lifting cylinder hinged between them, a launching push mechanism is provided on the launching platform, and a folding plate auxiliary mechanism is provided on the rear side of the launching platform; in summary, the present invention has simple structure, reasonable design and low cost, wherein the hydraulic motor provides the power source, The take-off of the UAV is driven by the transmission of the chain structure, which provides a guarantee for the smooth take-off of the modern UAV.

A novel full automatic plastics blow-moulding machine includes a machine frame on which annular conveying mechanism is mounted. Feeding device, heating device, rotation chain mechanism alongside heating channel, stretch-blow molding device, taking-out device of plastic bottle tube are sectional mounted on the annular conveying mechanism. The stretch-blow molding device includes first moulding board, second moulding board, third moulding board, clamping mechanism and stretching cylinder, each moulding plate is cup jointed to draw rod, the first moulding plate and the second moulding plate are mounted at both sides of the annular conveying system. The first moulding plate, the second moulding plate, the third moulding plate are slidable mounted transverse slipway. The clamping mechanism is equipped between the second moulding plate and the third moulding plate. And the stretching cylinder cooperates with the bottom of the bottle tube bearing base. The full automatic plastics blow-moulding machine guarantees that the first moulding plate and the second moulding plate move simultaneously and shift accurately by positioning gear, thereby guaranteeing the quality of the blow-moulding plastic bottle.