116results about How to "Counteract gravity" patented technology

A heat pipe device includes an outer pipe and at least one first capillary structure. The outer pipe is a hollow pipe and has a defined lengthwise direction, and the first capillary structure is accommodated along the lengthwise direction and positioned in the outer pipe, and at least one steam channel is formed between the first capillary structure and the outer pipe. Even if the heat pipe device is upside down, the heat pipe still can resist gravity and work normally to achieve the effect of using the heat pipe without being limited by the using direction.

The invention provides a water flow power generating device, which comprises an installing platform, a rotating mechanism, a tower tube, a machine cabin, a power generator, a gearbox and an impeller, wherein the installing platform is positioned on the water surface, the rotating mechanism is arranged on the installing platform, the tower tube, the machine cabin, the power generator, the gearbox and the impeller are positioned in the water, the upper end part of the tower tube is fixedly arranged on the rotating mechanism, the power generator and the gearbox are arranged at one side of the machine cabin, the impeller consists of a wheel hub and a plurality of blades, a center shaft of the wheel hub is connected with the power generator through the gearbox, the telecentric ends, far away from the center of the wheel hub, of the blades are provided with a wheel ring in a sleeving way, the wheel ring is of a cylindrical structure with the hollow side wall, and through the hollow structure of the wheel ring, the buoyancy obtained by the impeller in water counteracts the self weight of the impeller, so the impeller becomes a zero-weight impeller, the installing platform is fixedly arranged on a suspension framework consisting of a floating tube, and the suspension framework is fixed and floats on the water surface through pull ropes and ground anchors. The water flow power generating device has the advantages that the impeller can fast rotate under the water flow impact without overcoming the self weight, and the work obtained through the fast rotation is completely converted into the power generating power, so the power generating efficiency is greatly improved.

A kit for assembly of exercise apparatus (1) comprising a first major component (2) and a second minor component (3) each with engagement means (22–25) complementary to those on the other and detachably interengagable with each other in alternative mutual orientation of those components (2, 3) so that the assemblage can be arranged and rearranged at will be assume alternative bench, chair or incline configurations.

The invention discloses lubricating oil containing sheet magnetic nanometer Fe3O4 particles and a preparation method of the lubricating oil. The preparation method of the lubricating oil comprises the following steps of: (1), using oleic acid to clad sheet magnetic nanometer Fe3O4 particles to carry out surface modification to obtain modified Fe3O4 particles; (2), mixing the modified Fe3O4 particles with III base oil, wherein mass fraction of the modified Fe3O4 particles is 0.1%-2.0wt%, and preparing the lubricating oil containing sheet magnetic nanometer Fe3O4 particles through ultrasonic dispersion and high-speed shearing dispersion. The lubricating oil prepared by the preparation method disclosed by the invention has extremely good friction resistance and abrasion resistance, and high carrying capacity. Moreover, the prepared lubricating oil has the advantages of being stable in characteristics, capable of being stored for a long time without precipitation. Besides, the lubricating oil can be extensively applied to mechanical lubricating, can be used for saving energy consumption and prolonging service lives of mechanical parts, and therefore, the application prospect is extensive.

The invention discloses a method and a device for stably forming an all-position welding pool. In the method, a eudipleural external high-frequency alternating magnetic field is designed; the magnetic field is added on a welding gun so that liquid iron in the welding pool can generate an eddy current, and the eddy current and the external high-frequency alternating magnetic field interact with each other to generate an electromagnetic force; the generated electromagnetic force is used for counteracting partial or all gravity which influences the stable forming of the welding pool, so that thestable forming of the all-position welding pool can be kept. The device is applicable to the method and mainly comprises a middle winding and a middle iron core, a right winding and a right iron core, a left winding and a left iron core, and a beam for fixing the windings and the iron cores; the middle iron core has a hollow structure and is arranged at the middle of the beam; the welding gun canpass through the hollow of the middle iron core; the left iron core and the right iron core have solid structures and arranged on the beam symmetrically; and the device can be detachably and adjustably fixed on the welding gun by using the beam.

The invention discloses a robot for detecting a tubular structure. The robot comprises a robot body, an acting mechanism, an attaching mechanism and a detecting mechanism, wherein the acting mechanism, the attaching mechanism and the detecting mechanism are connected to the robot body; the acting mechanism is capable of driving the whole robot body to move; the attaching mechanism is used for keeping the robot body balancing; the detecting mechanism is used for detecting the inner wall of a pipeline; the acting mechanism comprises at least three acting wheels which are uniformly distributed inthe circumferential direction of the robot body; and the attaching mechanism comprises a support, at least three attaching wheels which are uniformly arranged in the circumferential direction of thesupport, and a first motor for driving the attaching wheels to rotate. According to the robot, the attaching wheels are arranged; when detecting some vertical pipelines or inclined pipelines, the attaching wheels are rotated to cause friction with the inner walls of building pipelines so as to supply upward component force to the robot, and thus the overall gravity of the robot can be counteracted, and thus the supporting balance of the robot in the pipeline is achieved.

The invention discloses a quick unfoldable prestressed steel bridge which comprises a bridge deck, transverse separating rods and two or more unfoldable prestressed steel frames. The bridge deck is laid on the transverse separating rods at the top, the unfoldable prestressed steel frames are positioned below the bridge deck, each unfoldable prestressed steel frame comprises a scissor-fork-type rod and a steel rope, two end heads and the middle of each scissor-fork-type rod are connected with the transverse separating rods, each steel rope is a prestressed steel rope, and by adopting an in-profile rope laying mode, pulling force borne by lower chord rods is replaced after prestress is applied, so that material performance is brought into full play; the unfoldable prestressed steel bridge is fixed on the ground through supports, constraint capability of the supports is improved, and anchor rods are arranged at the supports at two ends. The quick unfoldable prestressed steel bridge is short in erection time and convenient to carry, and can be used as a temporary bridge in the process of urban road reconstruction, during emergency rescue and disaster relief and for military use.

Disclosed in the invention is an imaging lens for a typoscope. The imaging lens is composed of a zoom lens cone, a lens cone, a zoom ring, a hold-down ring, a first zoom lens group and a second zoom lens group. The lens cone sleeves the outside of the zoom lens cone; the zoom ring sleeves the outside of the lens cone; the first zoom lens group is arranged inside the zoom lens cone; and the second zoom lens group is arranged at the bottom opening of the lens cone. A pin rod is arranged on the zoom lens cone; a guide slot is formed in the lens cone wall at the axial direction; a trapezoid thread is arranged at the inner wall of the zoom ring; and one end of the pin rod passes through the guide slot and extends into a threaded tooth groove of the trapezoid thread. The provided imaging lens has advantages of simple adjusting way, stable movement, low processing difficulty, simple assembly process, and high precision.

The invention discloses a water quality sampling anti-sinking unmanned aerial vehicle and an anti-sinking sampling method thereof. The sampling anti-sinking unmanned aerial vehicle comprises a basic component and a sampling mechanism, wherein the basic component comprises a plurality of sets of wings, and the plurality of sets of wings comprises rotor wing supports, rotor wing motors fixedly arranged at the end parts of the rotor wing supports and rotating rotor wings rotationally connected with the rotor wing motors; and the sampling mechanism comprises a sampling bin fixedly connected with the plurality of sets of wings, a sampling pump arranged in the sampling bin, a container converting device arranged in the sampling bin and rotationally connected with the sampling bin, and a samplinghose arranged at the bottom of the sampling bin. According to the water quality sampling anti-sinking unmanned aerial vehicle, a floating plate is arranged below a landing support of an unmanned aerial vehicle, so that the condition that the unmanned aerial vehicle sinks after water quality sampling is carried out by the sampling unmanned aerial vehicle; and the container converting device is arranged in the sampling bin of the unmanned aerial vehicle, so that sampling containers for storing water sources are converted, and then the sampling unmanned aerial vehicle does not need to fly multiple trips to sample when carrying out multipoint sampling on the same water source.

The invention relates to a flyable robot comprising a fuselage, special-shaped tubular-structure robot arms, rotor wing mechanisms and walking mechanisms, wherein the fuselage is fixedly connected to the special-shaped tubular-structure robot arms, and the multiple special-shaped tubular-structure robot arms are distributed and arranged around the fuselage to form a protected area; the special-shaped tubular-structure robot arms comprise vertical arms and inclined arms; the vertical arms are perpendicular to the horizontal plane of the fuselage, and motor seats and duct fixed support arms are arranged at the upper end of the vertical arms; wheel seats are arranged at the upper end of the inclined arms; the rotor mechanisms comprise electronic speed governors, motors, propellers and ducts; the walking mechanisms comprise servo motors and wheels; and the horizontal height of the rotor wing mechanisms are lower than the horizontal height of the walking mechanisms. With the adoption of the design, the flyable robot is simple in structure and convenient to use, the shaped tube shape structural engine arms can be disassembled, carry is convenient, the complicated environment can be coped with, the detection task is completed efficiently, and the safety performance of buildings such as a bridge can be greatly improved.

The invention relates to a whole body protecting device for welding and a working method of the device and belongs to the field of welding. The whole body protecting device for welding comprises a base; two parallel guide rails are vertically fixed to the base, and are each sleeved with a sliding sleeve; an upper protecting plate is fixed to the two sliding sleeves; a lower protecting plate is arranged below the upper protecting plate, and is fixed to the base; the lower portion of the upper protecting plate coincides with the upper portion of the lower protecting plate; a lens framework and an upper protective plate are sequentially arranged above the upper protecting plate; an optical filter is installed in the lens framework; the front edge of the lower end of the lens framework is hinged to the front edge of the upper end of the upper protecting plate; the rear edge of the upper end of the lens framework is hinged to the rear edge of the lower end of the upper protective plate; it can be avoided that the whole body is irradiated, an operator does not need to wear protective clothing or a protective mask, operation is made easier, and therefore the work efficiency is improved.

The invention discloses a head-mounted display and belongs to the technical field of visual display equipment, the head-mounted display comprises a main machine shell, a containing cavity is formed inthe main machine shell, the upper part and the lower part of the main machine shell are respectively provided with an air inlet unit and an air outlet unit which are communicated with the containingcavity, a heat dissipation fan is arranged in the containing cavity, the heat dissipation fan is located between the air inlet unit and the air outlet unit, and the air suction direction of the heat dissipation fan is from top to bottom. According to the invention, the heat dissipation fan arranged on the head-mounted display is used, the air suction direction of the heat dissipation fan is set tobe from top to bottom, and a vertical upward lifting force generated by the heat dissipation fan can offset part of gravity, so that the compression of the head-mounted display on the cervical vertebra of a user is reduced, user experience is improved, the endurance time and the use convenience are guaranteed, and the cost is not increased.

The invention belongs to the technical field of optical fiber testing, and particularly relates to an optical fiber strength testing method which comprises a bottom plate with supporting legs welded to the four corners of the outer wall of the bottom, side plates welded to the outer walls of the two sides of the bottom plate, a table plate welded to the outer walls of the opposite sides of the side plates, and a limiting end plate fixedly installed at the middle end of the table plate, the two ends of the limiting end plate are slidably connected with a fixed end block and a pulling block correspondingly, arc-bottom notches and arc-bottom short grooves which are distributed at equal intervals are formed in the top end of the fixed end block and the top end of the pulling block correspondingly, and the arc-bottom notches and the arc-bottom short grooves are distributed in a staggered mode. According to the invention, through the arrangement of the arc bottom notch, the arc bottom short groove, the arc bottom insertion end and the short insertion pin, effective fixation processing of an optical fiber is realized in the mutual matching process; through the trapezoidal auxiliary blocks arranged on the sides, opposite to the arc bottom notch and the arc bottom short groove, of the arc bottom insertion end and the short insertion pin, the optical fiber fixing stability can be effectively improved, and therefore it is guaranteed that testing operation is conducted smoothly.

The invention discloses a rotary cash-out shutter, comprising a frame, a turnover shutter, a shutter actuator, a driving mechanism and a self-locking mechanism, wherein the turnover shutter is fixed on the shutter actuator; the driving mechanism is fixed on the frame and drives the shutter actuator to rotate; the driving mechanism comprises a driving motor, a driving shaft, a driving synchronous belt pulley, a driven synchronous belt pulley and a synchronous belt; the driving motor is fixed on the frame, two ends of the driving shaft are rotationally arranged on the frame, the driving synchronous belt pulley is fixed on an output shaft of the driving motor, the driven synchronous belt pulley is fixed on the driving shaft, and the synchronous belt encircles the driving synchronous belt pulley and the driven synchronous belt pulley; the bottom of the shutter actuator is fixed on the driving shaft; and the self-locking mechanism automatically locks the shutter actuator when the turnover shutter is closed. The rotary cash-out shutter is small in floor area, low in cost and high in reliability.

The invention discloses a full-automatic efficient polishing machine. The full-automatic efficient polishing machine comprises a rotary disc capable of rotating in an indexing mode, a first side facerough polishing device, a second side face rough polishing device, a forward longitudinal polishing device, a reverse longitudinal polishing device and a transverse polishing device, wherein the firstside face rough polishing device, the second side face rough polishing device, the forward longitudinal polishing device, the reverse longitudinal polishing device and the transverse polishing deviceare arranged in the circumferential direction of the rotary disc, and a plurality of clamps evenly distributed and used for fixing products to be polished and a first motor driving one clamp to horizontally rotate are arranged in the circumferential direction of the rotary disc. According to the full-automatic efficient polishing machine, grid textures can be formed on the surface of a product, and the function of the polishing machine is expanded.

The invention belongs to the field of daily necessities, in particular to a thermos bottle capable of preventing the falling of a bottle stopper, which comprises a casing, wherein the casing is provided with a liner, the lower end of the casing is screwed with a base, and the lower end of the inner casing in contact to the upper end of the base, the base is provided with a cavity, the inner side wall of the cavity is fixedly connected with an annular elastic airbag, and the cavity is provided with a freely movable balancing weight, the upper end of the liner is provided with a bottle stopper,the upper end of the bottle stopper is fixedly connected with a fixing block, the upper end of the fixing block is fixedly connected with a handle, and the upper edge of the casing is fixedly connected with a C-shaped curved airbag, the curved airbag is in communication with the annular elastic airbag through a connecting pipe, the upper end of the fixing block is provided with an arc-shaped limiting slot matched with the curved airbag, and a handle is fixedly connected to the side wall of the casing. The thermos bottle capable of preventing the falling of a bottle stopper can utilize the pressing of the balancing weight to enable the C-shaped curved airbag to clamp the bottle stopper to prevent the bottle stopper from falling.

The invention discloses a robot for detecting a tubular structure. The robot comprises a robot body, an acting mechanism, an attaching mechanism and a detecting mechanism, wherein the acting mechanism, the attaching mechanism and the detecting mechanism are connected to the robot body; the acting mechanism is capable of driving the whole robot body to move; the attaching mechanism is used for keeping the robot body balancing; the detecting mechanism is used for detecting the inner wall of a pipeline; the acting mechanism comprises at least three acting wheels which are uniformly distributed inthe circumferential direction of the robot body; and the attaching mechanism comprises a support, at least three attaching wheels which are uniformly arranged in the circumferential direction of thesupport, and a first motor for driving the attaching wheels to rotate. According to the robot, the attaching wheels are arranged; when detecting some vertical pipelines or inclined pipelines, the attaching wheels are rotated to cause friction with the inner walls of building pipelines so as to supply upward component force to the robot, and thus the overall gravity of the robot can be counteracted, and thus the supporting balance of the robot in the pipeline is achieved.

The invention relates to a high-stability 3D printing device, which includes a base, a baffle plate, a first pole, a printing head, a vertical movement mechanism, a planar movement mechanism, a first support mechanism, a second support mechanism and an adjustment mechanism. The vertical movement mechanism includes a first motor, a worm, a first worm wheel, a second worm wheel, a first lead screw, a second lead screw and a support plate assembly. In this high-stability 3D printing device, the suspended planar movement mechanism utilizes a pole The coordinates locate any point in the horizontal plane. The combination of the vertical movement mechanism and the planar movement mechanism realizes 3D printing. The adjustment mechanism can ensure that the support for holding the object is always kept level. Used to support the support board in the voice control circuit, the type of integrated circuit U1 is TDA1521. Its output power is large, which ensures the reliability of the voice signal output, and has the function of overheating, overloading and short circuit protection, thereby improving the reliability of the system.

The invention relates to high-stability 3D printing equipment which comprises a base, a top plate, a first strut, a printing head, a vertical moving mechanism, a plane moving mechanism, a first supporting mechanism, a second supporting mechanism and an adjustment mechanism; the vertical moving mechanism comprises a first motor, a worm, a first worm gear, a second worm gear, a first screw rod, a second screw rod and a support plate component; the plane moving mechanism comprises a second rotating shaft, a third motor, a third gear, a fourth gear and a linear displacement component.The adjustment mechanism comprises a second strut, a fifth motor, a fifth gear, a sixth gear, a third rotating shaft, a bearing and a connecting rod. in the high-stability 3D printing equipment, the suspension type plane moving mechanism employs polar coordinates to locate any point in a horizontal plane; the vertical moving mechanism and the plane moving mechanism are combined to realize 3D printing; the adjustment mechanism can ensure that the bearing for containing an object is kept horizontal all the time; the second supporting mechanism is used for supporting the plane moving mechanism; the first supporting mechanism is used for supporting the support plate.

The invention relates to the technical field of machining of annular workpieces for automobile motors, in particular to a double-face machining process for an annular workpiece for an automobile motor. The double-face machining process comprises the following steps of workpiece loading, workpiece centering, pressing, adsorption, grinding and side grinding. A pressing adsorbing assembly is matched with a material cutting mechanism to position an annular workpiece and then rotate the annular workpiece, in the rotating process of the annular workpiece, an upper grinding piece in an upper grinding mechanism and a lower grinding piece in a lower grinding mechanism are utilized to approach the annular workpiece at a constant speed for grinding, and compared with an existing mode that the lower grinding piece is fixedly arranged, the technical problem that in the annular workpiece grinding process, the grinding precision of lower end face grinding is inconsistent with that of the upper end face of the annular workpiece due to the quality factor of the annular workpiece is solved.

The invention relates to a wearable magnetic levitation walking assisting device which comprises a front wheel, a stand column, a backrest piece, a supporting piece, a magnet, a handle, a hand brake,a movable sitting plate, a frame, a brake piece and a rear wheel. The front wheel is connected to the bottom of the front end of the frame through the front wheel supporting frame. The bottom of the rear end of the frame is connected with the rear wheel through the rear wheel supporting piece. The stand column is installed in the middle of the side face of the frame. The top end of the stand column is connected with the backrest piece and one end of an edge protecting piece. The other end of the edge protecting piece is connected to the handle. The handle is inserted in the frame through a slot. One end of the supporting piece is installed in the middle of the backrest piece. The magnet is installed at the other end of the supporting piece. A person wearing the magnet stands below the magnet. A fixed sitting plate is installed on the top face of the frame and aligned with the movable sitting plate. The movable sitting plate is installed on a supporting base. The walking assisting device has the advantages that the rehabilitation of a patient can be assisted, and borne loads of the patient can be reduced.

The invention belongs to the technical field of small and medium size lifting operation, and relates to a self-rectifying pneumatic lifting and carrying device. A pneumatic mode is used for grabbing,carrying and placing goods. The self-rectifying pneumatic lifting and carrying device comprises a chassis device, a lifting device and a clamping device. The self-rectifying pneumatic lifting and carrying device uses an air cylinder to drive lamping arms on two sides to clamp the goods, the weight can be lifted and placed selectively according to actual operation requirements. The self-rectifyingpneumatic lifting and carrying device is simple in the whole structure and high in maneuverability. In the working conditions such as short-distance carrying small and medium size weights in construction sites and factory warehouses and railway road maintenance, weight carrying can be achieved rapidly and orderly, and work efficiency is greatly improved. A motor and a pneumatic clamping mechanismin the self-rectifying pneumatic lifting and carrying device can be directly controlled by a program module, remote control can be realized, and it is ensured that lifting device can efficiently and accurately complete the whole no-load walking, on-load rotating, hoisting and other functions.

The invention relates to an anti-falling device used for operation on a concrete pole, and belongs to the technical field of life-saving equipment. When a worker climbs on the concrete pole, the device is opened through an opening and closing device to be arranged on the surface of the pole in a sleeving manner and fixed through a bolt, a safety belt and a rope are tied on the body of the worker,as the safety belt and the rope are in the loose state in the climbing process, the anti-falling device can move up and down on the pole, climbing of the worker is not influenced, when the worker slips and falls, the safety belt and the rope are tensioned, the rope drives the tensioned safety belt to shrink to enable the tensioned safety belt to be fastened and fixed to the surface of the pole, meanwhile, a fixed ring is driven to be inclined when the worker falls, an anti-sliding device is tightly attached to the surface of the pole to achieve the supporting effect, the worker stops falling,and safety of the worker is protected.

A lifting belt may include a lifter configured to generate a tractive force along a longitudinal direction of a spinal column by expansion, and a left connector and a right connector respectively disposed on a left side and a right side of the lifter and connectable to each other.

The invention discloses a protective-height-adjustable safety guardrail which comprises at least two bases, stand columns are fixedly installed at the upper ends of the bases, lifting rods are arranged at the upper ends of the stand columns, and a lower protective mechanism is fixedly connected between the two stand columns. An upper protection mechanism is fixedly connected between the two lifting rods jointly, two buffer devices are fixedly installed at the front end and the rear end of the lower protection mechanism in a bilateral symmetry mode, and anti-collision plates are fixedly installed at the ends, away from the lower protection mechanism, of the two buffer devices located in front of and behind the lower protection mechanism jointly. A connecting piece is further arranged between every two adjacent stand columns. According to the safety guardrail capable of adjusting the protection height, the height of the guardrail can be effectively adjusted, operation is easy and convenient, the guardrails are connected with one another, the placing angle can be adjusted at will, and the safety guardrail has good anti-collision performance when colliding occurs and is suitable for being widely used and popularized.

The invention relates to a quick wire locking electrical connector, which comprises a outer shell and at least one pedestal assembly arranged in the outer shell, wherein the pedestal assembly comprises a pedestal and a wire locking assembly mounted on the base; the wire locking assembly comprises a wire locking bracket, a wire locking slider, a wire locking wrench and a wire locking elastic pieceassembly; the wire locking bracket comprises two side plates arranged in parallel, a contact terminal connecting the two side plates, and two sliding slot holes formed in the two side plates respectively; the wire locking slider comprises a slider body and a locking block arranged on the slider body, and a spring is arranged between the slider body and the outer shell; the slider body rolls alongthe sliding slot holes, the locking block cooperates with the wire locking elastic piece assembly; and the wire locking wrench comprises a wrench body and a protrusion arranged on the wrench body, thewrench body is hinged with a shaft hole in the pedestal by means of a supporting shaft, and the wrench body is in contact with the slider body. The quick wire locking electrical connector reduces thefriction force by making the wire locking slider roll along the wire locking bracket, the wire locking slider moves smoothly and quickly, thus the wire locking force is increased, and the conductor contact is more reliable.

The invention discloses a pivot device suitable for single-hand operation. The pivot device comprises a first connecting part, a second connecting part and a rotating shaft, wherein the first connecting part is connected with a laptop computer body, the second connecting part is connected with a display, and the rotating shaft is arranged between the first connecting part and the second connectingpart, wherein the rotating shaft is fixedly connected with the first connecting part, the second connecting part is arranged around the rotating shaft in a rotating mode, and an adjusting assembly for changing rotating torsion between the first connecting part and the rotating shaft is further arranged between the first connecting part and the rotating shaft. The pivot device can reduce opening and closing force of a laptop computer screen through the adjusting assembly, a user can unfold the screen with single hand, and the unfolding angle of the screen can be conveniently adjusted.

The invention discloses a blade floating type offshore wind power generator with an inclined shaft variable-pitch and self-starting function. The blade floating type offshore wind power generator comprises a floating blade device, a wheel hub, a generator set, a truss, a resistance starting device and an inclined shaft variable-pitch device, wherein the floating blade device comprises a lift typeblade and a floating boat used for supporting the lift type blade; the generator set comprises a rotating shaft, the wheel hub is connected to the rotating shaft; one end of the truss is fixedly connected with the lift type blade, and the other end of the truss is hinged to the wheel hub; the resistance starting device is connected to one end of the truss close to the floating blade device, the resistance starting device is the blade floating type offshore wind power generator with the inclined shaft variable-pitch and self-starting function and provides torque and lift force during starting and normal operating, one end of the inclined shaft variable-pitch device is connected to the truss, and the other end of the inclined shaft variable-pitch device is connected to the lift type blade, the inclined shaft variable-pitch device is used for adjusting the attack angle of the lift type blade. The offshore wind power generator disclosed by the embodiment of the invention is high in self-starting speed and adjustable in variable-pitch.