42results about How to "Avoid turning over" patented technology

The invention provides an aircraft and a landing method thereof. The aircraft comprises a fuselage and wings, wherein the fuselage comprises a global positioning system, a downward-looking camera, a local navigation module and a flight controller; the global positioning system is used for providing present coordinates of the aircraft for the flight controller; the downward-looking camera is used for imaging by using visible light and near-infrared ray simultaneously; the flight controller is used for motion control of the aircraft; the local navigation module is used for starting the downward-looking camera when the aircraft reaches a position above coordinates of a predetermined destination under guidance of the global positioning system, using the downward-looking camera to capture a positioning identifier and obtaining position and distance information between the aircraft and the positioning identifier so as to provide accurate positioning information for the flight controller, therefore, the flight controller can control the aircraft to fly to the positioning identifier and the aircraft does not hover until the distance between the aircraft and the positioning identifier is within a preset capture distance range; the aircraft is captured after the distance between the aircraft and the positioning identifier is within the preset capture distance range and the aircraft hovers. The landing method which is simple and safe and does not require flat ground is provided by the invention and is suitable for being used outdoors.

The invention discloses a double-sided forming welding process of FGB process one-sided submerged arc welding. The process comprises the steps of: S1, butt-jointing ground two to-be welded steel plates to from a groove; S2, adhering a liner; and S3, when the groove is a V-shaped groove, filling alloy powder and then covering the groove with sintered flux and when the groove is an I-shaped groove, covering the groove with sintered flux, and pulling a welding wire for submerged-arc welding for automatic primary formed welding through a submerged arc welding machine for the I-shaped groove or the V-shaped groove covered by the sintered flux, wherein the welding parameters are as follows: the welding current is 400-1200A, the welding voltage is 25-45V and the welding speed is 10-80cm/min. By improving the composition ratio of raw materials of the sintered flux, the alloy powder and the ceramic liner, different welding modes are adopted due to different thicknesses of the welded steel plates; angular deformation is effectively avoided on the basis of improvement of the welding efficiency, and the process has the beneficial effects of simple field operation and wide application range.

The invention relates to a sickbed, in particular to a sickbed convenient for an internal medicine bedridden patient to overturn. The technical problem to be solved by the invention is to provide a sickbed convenient for an internal medicine bedridden patient to overturn, which can continuously overturn the patient instead of overturning the patient manually to reduce the labor cost and can also prevent the patient from being scratched. The invention adopts the technical scheme that the sickbed convenient for the internal medicine bedridden patient to overturn comprises a bed plate, a soft cushion, a movable plate, supporting legs, vertical plates, a cross rod, a sliding sleeve, a connecting rod, a first bearing pedestal, a lead screw, a first nut, a fixing block and the like; the supporting legs with supporting effects are symmetrically and fixedly connected with the left side and the right side at the bottom of the bed plate; the vertical plates are symmetrically and fixedly connected with the left side and the right side at the bottom of the bed plate. The sickbed convenient for the internal medicine bedridden patient to overturn, provided by the invention, has the beneficial effects that through starting the drive motor, the movable plate can swing upwards to overturn the patient without manually overturning the patient by medical staff, so that the labor cost is reduced, and an eye on the patient is not required to be kept; through a pushing device, the patient can be pushed to overturn, so that overturn is quicker.

The invention provides a method for underpinning an antifriction separator for shallow underground space construction. The method comprises the following steps that: firstly, the antifriction separator and a supporting tube are arranged on jacking construction equipment; secondly, when the construction equipment is jacked in, the antifriction separator and the supporting tube are driven to the right position gradually; thirdly, a fixing device is used for fixing the antifriction separator; fourthly, the jacked equipment exits; finally, a prefabrication structure is jacked from a start working well by a synchronous jack so as to underpin the supporting tube in underpinning space under the antifriction separator. The invention also discloses an antifriction separator underpinning device for the shallow underground space construction, comprising the antifriction separator, the supporting tube and the fixing device, wherein the antifriction separator separates an upper overburden layer from the top surface of the supporting tube; and the antifriction separator is fixed on a space enclosing structure through the fixing device. The device and the method solve the problem of earthback pressure effect generated by rectangular jacking method and box culvert jacking method in underground space construction, can smoothly complete construction under a condition that earth covering is hardly disturbed, thereby achieving the aims of protecting periphery environment, reducing measurement cost and reducing the whole working period.

A miniature tricycle has a frame consisting of a main frame, a sleeve pipe for central axle and installed in main frame, and connecting mechanism of back axle, which is composed of guide part, connecting plate assemblage and vibration damper. Said main frame is composed of front pipe, lower pipes and vertical back pipe (or L-shaped or U-shaped frame), which are connected to become V-shaped, H-shaped, or U-shaped frame. Its advantages are simple structure and high stability.

A new type of hydraulic power pick is composed of a frame, a suspension frame, a working shovel frame, a depth-limiting wheel, a soil loosening shovel, a hydraulic system, a power transmission system, and a suppression mechanism. The soil loosening shovel is fixed on the working bucket frame, and the working bucket frame is connected with the hydraulic cylinder to form a soil loosening mechanism. The suppression mechanism is composed of several suppression wheels fixed on the frame, which are used to adjust the working depth and can be profiled to improve the working adaptability. The invention adopts a novel working principle to realize virtual and real farming, and its point-shaped loosening technology can avoid soil turning and large soil disturbance, improve soil structure, and improve soil air permeability for point-shaped soil loosening in high-firmness pastures. and pasture water storage capacity, and keep the surface vegetation from being destroyed, reduce soil moisture evaporation, and increase the coverage of surface vegetation. It can meet the agronomic requirements of grassland improvement.

The invention relates to an automatic page turning machine in the field of equipment for helping the disabled. The automatic page turning machine comprises a paper absorbing device, a page turning device and an auxiliary part, wherein the paper absorbing device is used for driving a rocker to rotate mainly by a power device so as to enable a fan to be contacted with a paper surface, and the paper is absorbed up by the airflow generated by the movement of the fan, and the paper surface is pulled up at a certain height when a rocker motor reversely rotates; a horizontal sliding block of the page turning device is driven to slide on a horizontal guide rod by a motor, and a page turning rod is driven to move along the direction of the horizontal guide rod so as to turn a page of a book; in the auxiliary part, a book holder is used for clamping the book during power failure and is opened during electrifying, so that the pages are prevented from being randomly turned; a book carrying table is convenient for placing the book and reading the book; the operation of a whole system is effectively controlled by a single-chip microcomputer control circuit by utilizing the characteristics of a single-chip microcomputer. The automatic page turning machine is capable of taking the place of the upper limbs of the disabled for turning the page of the book, and is conveniently, effective, safe and reliable.

The invention relates to a disintegration method of an anterior shield of a shield tunneling machine. The method comprises the following steps: the anterior shield of the shield tunneling machine is detached after the tunneling construction by a shield tunneling machine is completed; two dividing lines are arranged on the anterior shield and two dividing lines are arranged on both sides of a center ring of the anterior shield; the anterior shield is divided into three parts along the two dividing lines, thus completing the disintegration of the anterior shield of the shield machine. The anterior shield is divided into three parts, which protects the integrity of the central ring, and eliminates the shield body turning-over operation without dismantling the main bearing, which makes the anterior shield disintegration more convenient. The recovery cost can be greatly reduced in the later period, and the goal of safely and smoothly dismantling the shield tunneling machine from the tunnelcan be achieved.

The invention discloses an abnormal-shaped single wire locating device for producing soft aluminum twisted wires. When conveyed, abnormal-shaped single wires are first located through a guide locating mechanism formed by two groups of wire-passing guide wheels which are correspondingly matched and then conveyed in guiding mode. The locating device is simple in structure, convenient to operate, good in practical applicability, and capable of well guiding and locating soft aluminum single wires with Z-shaped or S-shaped cross sections of novel products during a conveying process, avoids the conditions of turnover or breakage of the single wires during the conveying process, improves production quality of the soft aluminum twisted wires, and meanwhile avoids increasing production cost causedby additionally arranging production equipment for the novel products.

The invention relates to the field of automobile industry, in particular to a multi-chamber burst-proof wheel which is used in all types of motor vehicles or bicycles, vehicle using motors and motorcycles. The wheel is characterized in that four to six independent spiral tire tubes are adopted to form independent multi chambers which are not communicated with each other, and each tire tube is provided with an inflating valve. The multi-chamber burst-proof wheel has the characteristic of high safety factor; since the tire tube of the wheel is of independent spiral multi chambers, when one of the tire tubes is pierced by an object with sharp top or bursted caused by wheel internal pressure change due to temperature change during the running of the motor vehicle, other tire tubes can go on working, thus avoiding the traffic accidents of car body turn over, car crash, loss of life and personal injury, and the like caused by tyre burst, and guaranteeing the traffic safety. The burst-proof wheel can also be applied to all types of motor vehicles, bicycles, vehicle using motors and motorcycles.

The invention discloses a special cable for intelligent monitoring of rail transit and a production process thereof. The structure of the cable comprises a cable core, a metal shielding layer, an inner sheath, a flame-retardant belt, a metal armor layer, a wrapping belt and an outer sheath which are sequentially arranged from the inside to the outside. The metal shielding layer comprises two layers of semi-conductive wrapping tapes, and detection optical fibers, shielding copper wires and semi-conductive fillers which are arranged between the semi-conductive wrapping tapes and are distributedcircumferentially; the detection optical fibers and the shielding copper wires are uniformly distributed along the periphery of the cable core. The semi-conductive fillers are distributed between theadjacent detection optical fibers and shielding copper wires and between the adjacent shielding copper wires; and the outer diameters of the shielding copper wires and the semi-conductive fillers aregreater than the outer diameter of the detection optical fibers. According to the invention, optical fibers implanted into the cable can be effectively prevented from being damaged, and the cost of the cable can be reduced.

The limb lifting and turning-over device for brain surgery nursing comprises a bed board, supporting legs are arranged at the corners of the bottom of the bed board, a turning-over groove is formed in the upper surface of the bed board, the inner wall of the turning-over groove is rotationally connected with a turning-over plate through a pin shaft, a hanging plate is arranged on the lower surface of the bed board, and a turning-over assembly is arranged on the hanging plate; the turnover assembly drives the turnover plate to rotate with the pin shaft as a base point, and the bed plate is provided with an abutting assembly in the length direction of the bed plate. According to the turning-over device, the turning-over assembly and the abutting assembly of an independent structure are adopted, flexible turning-over operation can be conducted on the left side and the right side of the limb trunk of a patient on the bed board, meanwhile, abutting supporting can be conducted on the turned-over limb trunk of the patient, and the phenomenon that the patient overturns is avoided; it is ensured that the patient can turn over to a proper amplitude state and keep stable, then follow-up nursing operation on the patient is facilitated, and the using effect of the turning-over device is greatly improved.

The invention provides a foldable tool frame which is used for installing a table-type electric tool and provided with an automatic locking device. The tool frame comprises a bolt (1), a sliding rail(2), a pinching handle (3), a spring (5), a pull rod (6), a limiting hanging hook (7), an installing platform (8), an adjusting supporting frame (9), a supporting frame (10), a buckle (12), a buckle spring (13), a screw (14), a fixing plate (15) and a locking pin (16), the sliding rail (2) is installed on the installing platform (8), the limiting hanging hook (7) is installed on the sliding rail (2) and is movably connected with the pull rod (6), the supporting frame (10) is connected with the adjusting supporting frame (9) to form a supporting body to be movably connected with the installingplatform (8), the adjusting supporting frame (9) is connected with the installing platform (8) through the bolt (1) which is arranged in a groove of the sliding rail (2), the fixing pin (16) is fixedto the supporting frame (10), and the buckle (12) is installed on the fixing plate (15) through the screw (14). The tool frame has the advantages that the operation is simple, the height adjustment isconvenient, the tool frame can be moved at will, the tool frame is safe and reliable, the locking device is adopted, so that machine overturning in the moving process due to the gravity center problem of a machine is avoided.

The invention provides an intelligent flattening device of a grain depot, and relates to the field of granary machines. The intelligent flattening device comprises a flattening steel plate, two groupsof lifting sliding rails, two groups of transverse sliding rails, an in-barn camera, a remote control receiving end, a handheld remote control, two bearing steel beams and a removable connection shaft, wherein the lifting sliding rails are vertically fixed to the wall surfaces on the two sides through expansion bolts, the two bearing steel beams are installed on the lifting sliding rails on the two sides respectively, the two groups of transverse sliding rails are horizontally fixed to the upper ends and the lower ends of the bearing steel beams respectively, the flattening steel plate is vertically installed between the two groups of transverse sliding rails, the in-barn camera is installed on the wall surface parallel to the plane where the two lifting sliding rails are located, and theremote control receiving end is fixed to one bearing steel beam. The intelligent flattening device has the advantages that through a communication port, the flattening time and flattening images aretransmitted, recorded and stored in real time, manual operation is reduced, and labor is saved.