76results about How to "Stable platform" patented technology

Footwear has a sole for supporting a foot of a wearer, a first pair of wheels projecting from opposite sides of the sole adjacent the heel, and a second pair of wheels spaced in front of the first pair and projecting from opposite sides of the sole adjacent the arch portion of the sole. The footwear is convertible from a wheeled configuration to a non-wheeled configuration by opening a cover plate normally covering a downwardly facing, recessed region of the heel, removing the wheel axles from wheel axle mounting grooves in the recessed region, then re-closing the cover plate over the heel region.

An articulated equipment support includes a pair of elongated support bars, arranged in fixed, spaced-apart relationship, and having their opposite ends joined respectively by a top cross rod and a bottom cross rod. Pivot pins join the opposite ends of the rods to the respective cross bars permitting pivotal, lateral movement of the support bars in unison so that a variety of geometric configurations such as a parallelogram or the like may be achieved. The top cross rod includes an end projection having a bearing surface for rotatably mounting a double C-clamp with an outwardly projecting flange terminating with a bearing for rotatably supporting an equipment platform. An adjustable lock is carried on the platform for releasably securing equipment thereto and a shoulder strap is provided having opposite ends attached to the bottom cross bar and an adjustable mid-section trained across or about the torso of the user.

The invention discloses a preparing method for lithium nickel manganese oxygen covered with lithium titanate. The method comprises the following steps that firstly, Ni, Mn and M are added into pure water, and a mixed solution with the total molar concentration ranging from 1.0 mol / L to 3.0 mol / L is obtained; secondly, a complexing agent solution is added into the mixed solution, the pH value is mixed to be ranging from 9 to 12, and a supernatant solution is obtained; thirdly, the supernatant solution is oxidized, the solid centrifugal separation is carried out, drying is carried out, and precursor powder is obtained; fourthly, Li source compound is mixed with the precursor powder, a first time sintering is carried out, LiNi (0.5-x) Mn (1.5-y) M (x+y) O4 is obtained, pure water adding and the drying are carried out on the LiNi (0.5-x) Mn (1.5-y) M (x+y) O4, second Li source compound and TiO2 powder, and a mixed solid material is obtained; sixthly, secondary sintering is carried out on the mixed solid material, and an electrode material covered with the lithium titanate is obtained. According to the prepared electrode material covered with the lithium titanate, the cycle performance and the rate performance of the electrode material can be effectively improved.

A waterborne munitions system is disclosed. The system includes a submersible munitions platform and a remote control module. The munitions platform has a plurality of canistered munitions, either waterborne, airborne, or both, which can be remotely launched via the remote control module.

The invention relates to an aircraft and provides an unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment so as to solve the problems that an existing single-propeller aircraft is poor in reliability and large in power loss, a multi-axis aircraft is large in weight and poor in carrying capacity, and a coaxial double-rotor-wing aircraft is large in weight and poor in maneuvering performance. The unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment comprises a vehicle core, an aircraft frame and a deflection adjusting mechanism; the vehicle core comprises a double-output driving mechanism, a frame and a coaxial multi-rotor-wing mechanism; and the double-output driving mechanism is mounted on the frame, the coaxial multi-rotor-wing mechanism is connected to the two output ends of the double-output driving mechanism, counter rotating propellers are arranged on the coaxial multi-rotor-wing mechanism, a deflection manipulating rod is connected to the bottom of the frame, and the deflection adjusting mechanism is mounted on the aircraft frame and can control the deflection manipulating rod to swing. The unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment can be used for aerial photography, agricultural spraying and unmanned probe.

The invention provides an sgRNA (small guide ribonucleic acid) pair for specifically identifying porcine H11 locus, and a coding DNA (deoxyribonucleic acid) and application thereof. The sgRNA pair is composed of sgRNA-F and sgRNA-R, wherein the nucleotide sequence of the sgRNA-L is 1) or 2): 1) nucleotide sequence disclosed as Sequence 1 in the sequence table, and 2) nucleotide sequence with the same functions as the nucleotide sequence disclosed as 1) subjected to substitution and / or deletion and / or addition of one or more bases on the nucleotide sequence disclosed as 1); and the nucleotide sequence of the sgRNA-R is 3) or 4): 3) nucleotide sequence disclosed as Sequence 2 in the sequence table, and 4) nucleotide sequence with the same functions as the nucleotide sequence disclosed as 3) subjected to substitution and / or deletion and / or addition of one or more bases on the nucleotide sequence disclosed as 3). The sgRNA pair can greatly increase the fixed point insertion efficiency of the exogenous gene, and provides a stable platform for preparation of transgenic pigs.

A portable elevated observation chair is provided. The portable elevated observation chair has a telescopically extendable ladder and a seat attached at a back end of the seat to the extendable ladder with a foot rest attached below the seat. The chair can be carried to a location with the extendable ladder in the retracted position and then used as a observation chair by extending the extendable ladder and positioning a top end of the extendable ladder against a trunk of a tree so that the extendable ladder is leaning against the tree with the seat and footrest extending substantially horizontally from the extendable ladder.

A waterborne munitions system is disclosed. The system includes a submersible munitions platform and a remote control module. The munitions platform has a plurality of canistered munitions, either waterborne, airborne, or both, which can be remotely launched via the remote control module.

A vertical axis wind turbine generator having a support stand (11), a shaft (41) defining the longitudinal direction and axis (19) of the generator. Two rotating members (12, 13) are coupled to the support stand (11) and the upper end of the shaft (41), thus being enabled to rotate about the axis (19). Two or more blades (14, 24, 34) having two free ends (15, 16) are connected by connecting members (17 and 18) to the two rotating members (12, 13), wherein movement of the first and / or second rotating members (12, 13) towards or away from one another causes the blades (14, 24, 34) to move further from, or closer to, the shaft (41).

A novel crutch comprising a series of elements angled with respect to each other so as to provide a stable platform for supporting a user's weight while reducing injury.

The invention discloses a quasi-zero stiffness metamaterial vibration reduction mounting structure of an underwater vehicle hydrophone, which belongs to the technical field of underwater vehicles, and comprises an oil seal end cover mounted at the front end of a front fairing of an underwater vehicle, a mounting rack fixed at the front end part of the oil seal end cover, and two quasi-zero stiffness vibration reduction components arranged in front of and behind the mounting rack, the outer side parts of the quasi-zero-stiffness vibration reduction components are connected with the mounting frame, concave parts for clamping the end parts of the hydrophone are formed in the middle parts of the quasi-zero-stiffness vibration reduction components, and a mounting space for arranging the hydrophone is formed between the two quasi-zero-stiffness vibration reduction components; and the two ends of the hydrophone are respectively clamped and clamped in the concave parts of the two quasi-zero stiffness damping components. According to the quasi-zero-stiffness metamaterial damping device, through conformal design, vibration attenuation, structure optimization and energy-saving effects, an efficient, stable and low-noise hydrophone installation solution is provided for an autonomous underwater vehicle, and the performance of the quasi-zero-stiffness metamaterial damping device in underwater detection and signal acquisition is remarkably improved.

A self-walking type island foundation construction platform with a drilling and hoisting device comprises a platform body and a drilling and hoisting integrated drilling machine. The platform body is provided with at least one walking mechanism. The walking mechanism drives the platform body to walk. The drilling and hoisting integrated drilling machine is arranged at the middle portion of the platform body. A construction opening going deep into the platform body by a certain distance is formed in at least one side of the platform body. The in-depth positions of the construction openings are located under a drilling machine body of the drilling and hoisting integrated drilling machine, and the construction openings are matched with drill rods of the drilling machine body in size. The self-walking type island foundation construction platform with the drilling and hoisting device is easy to operate, stable and reliable in platform and capable of guaranteeing the pile forming quality, guaranteeing the rapid and accurate platform positioning, greatly saving the construction time, and greatly reducing the construction cost and the workload.

A brachytherapy applicator for treatment of metastic lesions in a load bearing region is provided. The applicator comprises an elongate tube body having a proximal and a distal end and defining an open internal area. A fixation element located on an outer portion of the tube allows the applicator to be fixed in position in relation to a target region while delivering a dose of therapeutic radiation. The fixation element can fix the applicator to tissue and / or a stabilization element implanted within a patient. A source of radiation positioned within the elongate body, before, during, or after implantation of the applicator, provides the therapeutic radiation.

The invention discloses an underwater pipeline inspection robot support which comprises a connecting supporting piece, walking power parts and a pipeline fastening crawling piece. The connecting supporting piece comprises a connecting ring, a connecting supporting rod, a front-end supporting pipe, a rear-end supporting pipe and an opening and closing piece; the walking power parts comprise the front-end walking power part and the rear-end walking power part; the front-end walking power part is arranged on the front-end supporting pipe; the rear-end walking power part is arranged on the rear-end supporting pipe; the pipeline fastening crawling piece is arranged on the connecting supporting piece, and comprises a front-end pipeline fastening crawling piece and a rear-end pipeline fastening crawling piece; the front-end pipeline fastening crawling piece is arranged on the front-end supporting pipe; and the rear-end pipeline fastening crawling piece is arranged on the rear-end supporting pipe. The underwater pipeline inspection robot support provided by the invention is reasonable in structural design and high in seawater undercurrent resistance, a stable platform can be provided for submarine pipeline detection equipment, then the detection accuracy is improved, operation energy consumption is small, and the effective operation time of the detection robot on the seabed can be effectively prolonged.

By substituting a ring optical parametric oscillator for the linear cavity, one eliminates the effects of feedback solved in the prior art by the use of isolators and by the purposeful off-axis alignment of the pump laser beam. The result is an exceedingly robust system with state-of-the-art efficiency for maximizing output power while preserving beam quality.

The invention relates to an aircraft and provides an unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment so as to solve the problems that an existing single-propeller aircraft is poor in reliability and large in power loss, a multi-axis aircraft is large in weight and poor in carrying capacity, and a coaxial double-rotor-wing aircraft is large in weight and poor in maneuvering performance. The unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment comprises a vehicle core, an aircraft frame and a deflection adjusting mechanism; the vehicle core comprises a double-output driving mechanism, a frame and a coaxial multi-rotor-wing mechanism; and the double-output driving mechanism is mounted on the frame, the coaxial multi-rotor-wing mechanism is connected to the two output ends of the double-output driving mechanism, counter rotating propellers are arranged on the coaxial multi-rotor-wing mechanism, a deflection manipulating rod is connected to the bottom of the frame, and the deflection adjusting mechanism is mounted on the aircraft frame and can control the deflection manipulating rod to swing. The unmanned aerial vehicle based on coaxial multi-rotor-wing posture adjustment can be used for aerial photography, agricultural spraying and unmanned probe.

The invention discloses a composite electrode material of sodium cobalt pyrophosphate / carbon. The chemical general formula of the sodium cobalt pyrophosphate / carbon is Na2-2xCo1+xP2O7, wherein x is greater than 0 and less than or equal to 0.25. The invention further discloses a preparation method of the composite electrode material. The preparation method comprises the following steps: dissolving a cobalt source, a sodium source and a phosphorus source into water according to the ratio of the elements in the chemical general formula to obtain mixed liquid, adding a complexing agent into the mixed liquid, stirring and heating to obtain gel, and drying the gel to obtain a precursor; calcining the precursor to obtain the composite positive electrode material. In addition, the invention further provides application of the composite positive electrode material serving as a sodium ion battery positive electrode material. The preparation method provided by the invention is simple and mild in condition. The prepared sodium ion battery positive electrode material has uniform granularity and good appearance, and has high specific capacity and high voltage and shows excellent circulating stability when being applied to a sodium ion battery.

A high-precision accelerometer relates to the technical field of acceleration measurement and comprises a servo circuit board, a torquer stator assembly, a pendulum assembly and a shell. The shell isprovided with a cylindrical inner cavity, one end of the inner cavity is closed, and the other end of the inner cavity is opened to form an opening; the torquer stator assembly is located in the innercavity, and the torquer stator assembly and the opening are arranged at intervals to form a hanging meter structure; and the servo circuit board is positioned at the opening and is bonded and weldedwith the shell to seal the inner cavity. The high-precision accelerometer adopts multiple new technologies such as a unique hanging meter structure, a precise flexible supporting structure, a pendulumassembly mechanical structure, a high-sensitivity capacitive sensor and a feedback type integrated servo circuit, so the high-precision accelerometer has the characteristics of high product stability, high repeatability precision, small temperature coefficient, accurate temperature measurement, quick starting, strong environmental adaptability and the like, and is particularly suitable for high-precision systems with high requirements on accelerometer precision, temperature and starting time, such as inertial navigation, navigation attitude, platform stability, missile steering engine controland the like.

The invention discloses a safe and stable high-altitude suspension platform capable of achieving automatic cleaning. The platform comprises a case box body, a power cavity is formed in the caes box body; a connecting cavity communicated with the power cavity is formed in the front side of the power cavity; according to the invention, a sucker is automatically pushed out; the baffle is pulled to move inwards to manufacture a low-pressure area; the sucker can be adsorbed on the glass; influences of factors such as wind power on the platform are reduced, so that the purpose of stabilizing the platform is achieved, safety during cleaning is improved, interference factors during cleaning are reduced for the platform, in addition, an automatic cleaning device is additionally arranged, liquid drops are automatically sprayed out through a pipeline, a sponge block is opened to automatically clean glass, and the workload of cleaning personnel is reduced.

The invention provides a platform with a surging power generation function. The platform comprises a platform body with an inner oil cavity which stores liquid oil. The platform is characterized in that a plurality of cylinders are fixed under the platform body in the vertical direction, a cylindrical piston cavity is formed in each cylinder, the top of each piston cavity communicates with the oil cavity, and an impeller generator is arranged at the upper end of each piston cavity; and a piston rod is arranged in each piston cavity, a piston is fixed to the top end of each piston rod and matched with the corresponding piston cavity, and a floating barrel internally provided with a cavity is fixed to the lower end of each piston rod. The platform is a multipurpose platform and also a floating power station, and if propelling equipment is additionally arranged on the platform, the platform can become an automatic barge. The platform has the characteristics that the platform is resistant to waves and stable, cannot overturn and only slightly fluctuates. The platform is simple in structure and good in practicability, can be used for obtaining sea energy and can be used as a military airplane taking-off and landing platform.

The invention belongs to the field of glass bottle conveying and in particular relates to a vibrating transition platform comprising a body. The body is formed by a base seat and a vibrating assembly arranged over the base seat. Compared with the prior art, the vibrating transition platform has advantages and beneficial effects that with an electromagnetic vibrator having a contact connection under a vibrating plate and characteristics of fast vibrating frequency and small amplitude of the electromagnetic vibrator, the glass bottle can move along a stable electromagnetic vibrating direction, so the glass bottle can transit between an annealing furnace and a bottle arraying machine; and due to fast vibrating frequency and small amplitude of the electromagnetic vibrator, the glass bottles can be stably and quickly conveyed.

A system assists kitchen workers with the filling of refrigerator bags by providing a system for stabilizing a refrigerator storage bag during the placement of material within the bag. The system includes a first U-shaped frame member having a closed end and two legs extending from the closed end that terminate into distal ends and a second U-shaped frame member having a closed end and two legs extending from the closed end that terminate into distal ends. A first coupler couples a first leg of the first U-shaped member to a first leg of the second U-shaped member and a second coupler couples a second leg of the first U-shaped member to a second leg of the second U-shaped member. The coupler limits the outward travel of the closed ends of the U-shaped members so that the first and the second distal ends of both U-shaped members remain stationary to hold in an open position a refrigerator bag having its mouth folded over the distal ends of the U-shaped members when the closed ends are rotated to the limit of their outward travel and the closed ends are placed on a level surface.

The invention provides a device for detecting pull-out resistance of a foundation pile and quality of a pile body. The device comprises a working platform, a bracket and a beam, wherein the beam is hinged on the bracket, a heavy hammer assembly is arranged at one end of the beam in the left-right direction, a pile pulling assembly is arranged at the other end of the beam, and a gyroscope for detecting the horizontal of the beam is arranged on the beam. According to the device, through the hinged design of the beam and the bracket, lifting mechanisms at the two sides of frame body, namely jacks, lift the heavy hammer to a certain height and fall down, the heavy hammer impacts a main beam below, the pile pulling assembly rises by utilizing a lever principle, the upward impact force is exerted on a detected pile, the impact force borne by the detected pile is measured through the pile pulling assembly, and the pull-out resistance of the foundation pile and the quality of the pile body aredetected.

The invention discloses a floating type buoyancy-adjustable construction platform based on water conservancy construction, relates to the technical field of water conservancy construction, and solvesproblems that a currently used platform does not have a function of regulating and controlling a floating capacity and cannot quickly regulate buoyancy according to an inclination degree to achieve the function of balancing the platform. The floating type buoyancy-adjustable construction platform based on water conservancy construction comprises a main floating plate. Eight groups of pressure regulating bins are integrally arranged at the bottom of the main floating plate; twelve groups of through holes are formed in the bottom of each pressure regulating bin; cambered surface filter screens are fixedly arranged on the outer sides of the bottoms of the pressure regulating bins; the pressure regulating bins and a regulating table are arranged; and a buoyancy balance adjusting function is provided for the construction platform, when the platform inclines, a control valve corresponding to a sinking side and a ball valve connected with an air bin A are opened, external air can be rapidly conveyed into the pressure regulating bins in cooperation with rotation of a crankshaft A, the pressure regulating bins are filled with air, the buoyancy on one side of the platform is increased, and the platform becomes balanced.

The utility model discloses a liquid circulation module to solve the problems that an existing cell culture device cannot accurately simulate an in-vivo dynamic circulation process, cross contamination occurs in a conventional cell culture experiment process, and an experiment result is inaccurate. The system comprises two liquid storage tanks, two pressure pumps and a cell culture device which is matched with the two liquid storage tanks for use, during use, liquid is driven by the pressure pump to flow, so that the liquid flows from the first liquid storage tank to the second liquid storage tank after passing through the flowmeter, the cell culture device and the one-way valve according to a set flow rate, liquid is quickly supplemented from the second liquid storage tank to the first liquid storage tank after being cultured for a period of time, and the process is repeated, so that the long-term dynamic circulating culture process of cells is realized; the device is simple in overall structure and convenient to use, the in-vivo dynamic circulation process can be accurately simulated in the cell culture process, cross contamination in the conventional cell culture experiment process is avoided, and therefore the accuracy of the experiment result is improved; the whole cell culture process is in a sealed state, so that the pollution problem is avoided.

The invention provides a two-foot walking robot, belongs to the technical field of robots, and aims at solving the problems that most existing biped walking robots are single in walking mode and poor in stability, and a stable platform cannot be provided for scientific research equipment. The two-foot walking robot includes a control unit, a head platform, a ball-like joint, an abdomen unit and leg units symmetrically arranged on the abdomen unit at intervals, wherein the control unit is fixed on the head platform; and the two ends of the ball-like joint are fixedly connected with the head platform and the abdomen unit respectively. According to the design, a platform which is convenient to modify and highly modularized is provided, so that highly free overall control can be provided at the same time so as to meet the requirements of various users; when the robot walks, the body is close to the ground, and the head can be lifted up; due to a large number of joints, the robot has the functions of self-calibration, tumble and standing; even under complex and changeable terrains, the robot can provide a stable and free operation platform for scientific instruments.