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 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.

The invention discloses a durable lubricating oil with a long service life. The lubricating oil is prepared from the following components: lubricating oil base oil, soybean oil, turpentine, triethanolamine, sorbitol, nano bentonite, lignin sodium sulfate, polyvinyl alcohol, nano alumina, dibutyl oleate, triisopropyl borate, and auxiliary additive. The provided lubricating oil has the advantages of good cooling performance and excellent lubricating effect, and can be used in most occasions. The anti-rust performance and lubricating effect of the lubricating oil are both enhanced. The stability is strong. The lubricating oil can precisely fill the lubricating surface and realizes continuous lubricating. Moreover, during the lubricating process, the functions of gravity and centripetal force are counteracted, the lubricating oil will not be leaked, and the pollution is prevented. The lubricating oil can be widely used to lubricate machinery, the machinery can be well protected, the energy is saved, the loss is reduced, and thus the lubricating oil has a wide application prospect.

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 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 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.