5results about How to "Avoid ground contact" patented technology

This invention relates to the field of unmanned aerial vehicle (UAV) technology and discloses a multi-functional UAV. The UAV includes a stabilizing support mechanism installed at the bottom of each of its four rotor arms. This stabilizing support mechanism can stably support the UAV in soft sand. An auxiliary mechanism is rotatably connected to the top of each stabilizing support mechanism. This auxiliary mechanism assists in supporting the stabilizing support mechanism and improves its cushioning capacity. A secondary support mechanism is detachably connected to the bottom of the UAV. This secondary support mechanism protects the bottom of the UAV and prevents it from tipping over on uneven ground. Through the cooperation of the stabilizing support mechanism and the auxiliary mechanism, the UAV can utilize its own gravity to stabilize itself in sandy or soft soil terrain, preventing it from sinking or tipping over. Furthermore, the structure is purely mechanical, simple, and low-cost, and is relatively reliable in extreme environments.

The utility model discloses a special lifting appliance for hoisting steel skeleton beam and column, it includes gallows, the front and back of gallows all are connected with telescopic link of sliding, the inner chamber fixed connection of adjusting frame has telescopic link, the output of telescopic link is through to the outside of gallows and is connected with adjusting frame fixedly, the top fixed connection of adjusting frame has fixed frame, the bottom of fixed frame is equipped with two symmetrical sliding slot. The utility model discloses through the lifting ring of gallows bottom hoists steel skeleton column, places gallows at the top of steel skeleton beam, starts two symmetrical telescopic links, makes two symmetrical adjusting frames move to each other, starts motor, makes two -way screw rod and two symmetrical sliding frame screw motion, through the limiting of sliding slot, makes two symmetrical sliding frame move to each other and clamps the wing plate of steel skeleton beam, avoids the lifting appliance to incline when hoisting larger steel skeleton beam, guarantees the safety of hoisting.

The utility model discloses a prefabricated concrete wallboard hoisting and positioning auxiliary assembly which comprises a frame body, a fixing strip is fixedly connected to the bottom of the frame body, a first sliding groove is formed in the bottom of the fixing strip, an adjusting plate is arranged at the bottom of the fixing strip, a sliding strip is fixedly connected to the bottom of the adjusting plate, the first sliding groove is matched with the sliding strip, and the first sliding groove is matched with the sliding strip. A first hanging plate is fixedly connected to the bottom of the adjusting plate, a second sliding groove is formed in the bottom of the fixing strip, and a threaded sleeve is fixedly connected to the top of the sliding strip. The position of the precast concrete wallboard is preliminarily adjusted through a crane driver, then the motor is started, the threaded rod and the threaded sleeve are made to move in a threaded mode, the threaded sleeve drives the adjusting plate and the first hanging plate to move left and right, and the left-right position of the precast concrete wallboard can be adjusted through the adjusting structure; the problem that the precast concrete wallboard is difficult to adjust accurately is avoided, and the mounting speed of the precast concrete wallboard is increased.

The utility model belongs to the field of grifola production technology, especially a kind of strain sterilization framework, including the rectangular frame body of upper end open setting, frame body is fixedly connected by connecting rod, the rear end of frame body is equipped with the door body of opening or closing, four lateral surfaces and bottom of frame body are equipped with baffle, bottom baffle is inclined to set, limit platform is equipped in frame body, breathable mat is laid in the bottom of frame body.The utility model is through the door body of being set in the side of frame body, operator can open door body, load bag culture medium into frame body, need not load from the upper end opening of frame body, to further reduce the frequency of bending down of operator to place bag culture medium, reduce labour intensity, improve the convenience of use;Frame body top four corners are equipped with limit piece, for the location of upper frame body support when frame body is stacked, avoid sliding after stacking, simultaneously, top four corners of frame body are protected, reduce impact deformation.

The utility model provides a baby small bed support which comprises an enclosure frame, the enclosure frame comprises U-shaped frames and straight rods capable of being detachably connected with the U-shaped frames, the two U-shaped frames are symmetrically arranged, and the detachable straight rods are arranged between the two opposite ends of the two U-shaped frames respectively. The straight rod or the U-shaped frame is provided with a first splicing part, the first splicing part is connected with a leg tube, the leg tube is provided with a second splicing part, and the second splicing part can be spliced with the second splicing part of another leg tube or is connected with the first splicing part. The problem that an integrated structure of the enclosure frame cannot be detached is solved, the size is reduced after the enclosure frame is detached and folded, storage and transportation are facilitated, and the size of the enclosure frame can be changed by splicing the straight rods with different lengths through the U-shaped frame so as to adapt to the height change of a baby; the leg tubes or the straight rods are provided with first splicing parts, and the leg tubes are provided with second splicing parts, so that the leg tubes and the enclosure frame are quickly connected, the length of the leg tubes is modularly adjusted, and the leg tubes are adaptive to different furniture heights such as beds / sofas / dining tables.