76results about How to "Counteract the reaction force" patented technology

Apparatus and methods for performing surgery within an organ or vessel are provided. A catheter is provided having a longitudinal axis and an end region carrying an end effector, the end region movable to a series of positions along the longitudinal axis and with an selectable orientation relative to the longitudinal axis. The catheter includes elements for stabilizing the end region of the apparatus within an organ or vessel, and for counteracting reaction forces developed during actuation of the end effector.

The invention discloses an auxiliary device for starting and receiving of a shield machine. The auxiliary device comprises a steel sleeve, a bottom framework, and a bearing board, wherein the steel sleeve is formed by connecting a plurality of sleeve bodies, the bottom framework is arranged at the bottom of the steel sleeve, the bottom framework comprises a plurality of sections, the bottom framework comprises a bottom board that extends along a direction vertical to an axis of the steel sleeve, the bearing board extends along the direction vertical to the axis of the steel sleeve and has a side edge matched with the outer side wall of the sleeve body, the bearing board is vertical to the bottom board, lifting boxes are arranged at two ends of the bottom board, the lifting boxes comprise an external box that is formed by connecting a top board parallel to the bottom board with a part of the bearing board and an internal box that is arranged in the external box, the internal box is internally provided with a hydraulic device, and a plurality of vertical and horizontal steel boards are arranged in a clearance between the internal box and the external box so as to divide the clearance into a mesh structure. The auxiliary device can be used for starting and receiving of the shield machine, also can realize cross-station, lifting and translation of the shield machine, is low in device loss and long in service life.

The soil loosener for planting Chinese yam includes a frame, tracks, a gear box, an elevator. The gear box has a power input unit and a power output unit, and the power output unit is two vertical parallel power output shafts located below the gear box and has two vertical spiral milling cutters in opposite rotation directions installed in the output ends of the output shafts. The soil loosener with two vertical spiral milling cutters can meet the requirement of soil loosening depth in planting Chinese yam and has high soil loosening efficiency, and the opposite rotation direction of the milling cutters can counteract partial reacting forces to reduce vibration and prolong service life. The present invention is suitable for planting Chinese yam and other plant with long root, such as burdock.

The invention discloses a vibration amplifier and a testing method for simulating the high-order nonlinear vibration fatigue of a blade. The vibration amplifier comprises a base, a fixed shell, an upper cushion block, a lower cushion block, first fixing screws, a second fixing screw, an amplification arm and a clamping block; the upper cushion block and the lower cushion block are located in the fixed shell; one end of the amplification arm sequentially passes through one side surface of the fixed shell, a space between the upper cushion block and the lower cushion block, and the other side surface of the fixed shell, and then extends out from the fixed shell; the clamping block is located on the upper surface of the other end of the amplification arm; the first fixing screws pass through the clamping block and the amplification arm, so that the clamping block can be connected with the amplification arm; and the second fixing screw passes through the top of the fixed shell, extends into the fixed shell and contacts with the upper surface of the upper cushion block, so that the upper cushion block, the lower cushion block and the amplification arm can be fixedly connected with one another. With the amplifier and the method adopted, detection on the fatigue strength of the blade can be realized based on a fatigue testing process of resonance frequency and amplitude.

A semi-automatic fire-fighting lance carrying rack with two degrees of freedom comprises a gear drive mechanism, a cam mechanism and a sheave drive mechanism, wherein the gear drive mechanism comprises three gears and three rotating shafts; the cam mechanism comprises a pulling buckle, a cam and a tappet; and the sheave drive mechanism comprises a first drive plate, a first straight pin, a second drive plate, a second straight pin, a sheave, a compression spring, a spline and a splined hub. The cam is driven to push the tappet so as to enable the spline at the upper end of the sheave to be jointed with the splined hub, a motor transmits power to the drive plates through the gear drive mechanism, the straight pins on the two drive plates drive the sheave to rotate, the two straight pins rotate in the opposite directions and have 180-degree phase difference, so that a splined hub upper mechanism is driven to swing back and forth in the range of 0-90 degrees, a lance is embedded to a lance bayonet which can rotate around a rotating shaft of the bayonet and is locked by a locking nut, and a height adjustment rod can be adjusted vertically and locked. The semi-automatic fire-fighting lance carrying rack can reduce the fire-fighting work intensity and reduce the number of staff for the fire-fighting work.

A ratchet-type tensioner capable of restricting setback of a plunger includes a ratchet mechanism that allows setback of the plunger by sliding a ratchet element in a disengaging direction to disengage ratchet teeth from rack teeth when a reaction force acts on the plunger as a result of excessive chain tension. The ratchet element is slidable in a ratchet-receiving hole, and an inclination suppressing structure that prevents the ratchet element from becoming skewed in the ratchet receiving hole to an extent such that its forward end contacts one side of the hole while its rearward end contacts the opposite sides of the hole.

The invention discloses an optical fiber sensor combination for monitoring the corrosion of reinforced concrete. The optical fiber sensor combination comprises an optical fiber sensor and a compensation sensor, wherein the optical fiber sensor and the compensation sensor comprise reinforcing steel bar elements, reinforced fiber glass reinforced plastic support bases, optical fiber Bragg gratings and connecting optical fibers, protective sleeves, silicon sheets, reinforcing steel bar coating regions, reinforcing steel bar un-coating regions, and mortar housings, wherein the reinforcing steel bar elements of the optical fiber sensors are reinforcing steel bars to be tested, and the reinforcing steel bars of the compensation sensor are 316L stainless steel bars. According to the optical fiber sensor combination, a reaction force of mortar is counteracted to a certain extent, the local corrosion of the reinforcing steel bars is favorably monitored, and the sensitivity of monitoring is improved. The compensation sensor is made by adopting a manner of replacing common reinforcing steel bars by 316L stainless steel, and is simple in principle and convenient to operate. The optical fiber sensor combination is simple in structure, convenient to manufacture, low in cost, good in sensitivity, high in accuracy, strong in anti-electromagnetic interference, high in reliability, good in durability, and high in stability, and is suitable for monitoring the long-term durability of reinforcing steel concrete structures such as saline and alkaline land, seawater and deicing salt under multiple environments.

The invention discloses a method which confirms a determination point out-of-focus deviation amount according to a sample determination surface plane equation to achieve automatic focusing. The method comprises building a method of the sample determination surface plane equation, improving representativeness of the sample determination surface plane equation, removing a mechanical error in the process of automatic focusing, reducing measures like focusing times, adequately controlling a servo system and the like. The total focusing time does not exceed 2 minutes to achieve the aim that an automatic scanning determination sample still keeps an accurate focusing state.

The invention relates to an automobile suspension system, and a control system and method of the automobile suspension system and belongs to the technical field of automobile suspension. The automobile suspension system comprises a lower swing arm, a shock absorber assembling component, an upper swing arm and a wheel assembling component. According to the automobile suspension system, the equivalent stiffness of suspension springs is adjusted according to signals collected by a sensor, and the manipulation stability and traveling comfort of an automobile are fully combined; the height of an automobile chassis is adjusted appropriately, and the traveling passing ability of the automobile is improved; a rotary type stepping motor of the suspension system further has the effect similar to a force generator in an active suspension system and can provide reacting force counteracting impact of wheels for the suspension system through forward rotation or reverse rotation; and a limiting nut and a piston rod thread constitute a lead screw nut structure, so that the self-locking function is achieved, thus, electric energy is consumed only when the rotary type stepping motor rotate forwardsor reversely, and the energy saving effect of the automobile suspension system is better than that of the active suspension system.

The invention relates to the field of health care and beauty products and medical instruments, in particular to a belly massager suitable for gastrointestinal motility insufficient patients and abdominal obesity patients. The belly massager can be manufactured in three types which are the single-disc belly massager, the four-disc belly massager and the two-disc belly massager. According to the single-disc belly massager, a motor is connected with a massage shaft component and a massage head component through an eccentric coupler and drive the massage shaft component and the massage head component to rotate, so that a bottom massage disc conducts parallel circular motion, and the belly of a patient is massaged. The four-disc belly massager and the two-disc belly massager are each provided with two gear motors, each motor drives two sets of massage shaft components and massage head components to rotate through a driving gear and a driven gear, and multiple portion massage is achieved. The massage head components can be rapidly detached and installed, and massage heads are convenient to replace. The belly massager is small in size and weight and can be held by hands or tightened through a pull belt to conduct massage, a user operates the belly massager conveniently and freely, and the belly massager has the relatively high use comfort level and massage efficiency.

The invention relates to a disc type rotor craft. The disc type rotor craft. The disc type rotor craft comprises a body, a rotor system, a landing gear and a control system, wherein the rotor system comprises a disc type rotor and n movable control surfaces, control surface openings are evenly formed in the upper surface of the disc type rotor, the middle of the lower bottom surface of the disc type rotor is connected with an engine transmission system through a central shaft, the movable control surfaces are embedded into the control surface openings, the middle of each movable control surface is movably connected with the disc type rotor through a rotary shaft, and the movable control surfaces can be driven by the rotary shafts to rotate relative to the disc type rotor; the control system comprises an automatic inclinator for controlling the pitching angle of the disc type rotor and a control surface control mechanism for controlling the rotating angles of the movable control surfaces, and the control surface control mechanism comprises a control surface control disc and a control surface drive motor. The rotor craft further comprises a balance propeller and a duct type propeller. The disc type rotor craft which utilizes the aerodynamics feature of the disc type rotor is good in stability, low in power consumption, high in interference resistance, high in cruising ability, convenient to control, high in operability and high in safety.

The invention discloses a plant protection drone. The plant protection drone comprises a drone body, a spray bar and a plurality of spray heads, wherein the spray bar comprises an inner spray bar andan outer spray bar; one end of the inner spray bar is connected with the drone body; the other end of the inner spray bar is connected with the outer spray bar; during working, the outer spray bar canbe rotated in a vertical plane relative to the inner spray bar to move to a vertically downward position or a horizontal position; and the spray heads are arranged on the inner spray bar and the outer spray bar along the length direction of the spray bar at intervals. The plant protection drone disclosed by the invention has the beneficial effects that when the plant protection drone works, the outer spray bar can be rotated in a vertical plane relative to the inner spray bar to move to a vertically downward position or a horizontal position, so that the horizontal spraying and the longitudinal spraying of a medicine can be realized and the plant protection drone can adapt to various sprayed objects, is suitable for spraying needs of different crops and different environments, meets practical application needs and has strong practicability and a broad application prospect.

The invention discloses a body building magnet therapy type rehabilitative apparatus. The body building magnet therapy type rehabilitative apparatus comprises a rotating device, an adjusting support and a body building plate, wherein the left end of a transverse rod is fixedly connected with a left clamping ring, the right end of the transverse rod is fixedly connected with a right clamping ring, a left cushion plate is connected to the position below the left end of the transverse rod through a first connecting rod, a right cushion plate is connected to the position below the right end of the transverse rod through a second connecting rod, a first arc-shaped protecting plate is fixedly connected to one side of the body building plate, a second arc-shaped protecting plate is fixedly connected to the other side of the body building plate, magnet therapy blocks are evenly arranged on the surface of the body building plate, a bracket is arranged on the bottom face of the body building plate and composed of an arc-shaped frame, an arc-shaped protrusion and a carrying table, the arc-shaped frame and the carrying table are of an integrally-formed structure, the arc-shaped protrusion is fixed to the center of the arc-shaped frame, and the carrying table is elastically connected with the bottom face of the body building plate through spring columns. According to the body building magnet therapy type rehabilitative apparatus, due to the fact that the magnet therapy blocks are arranged on the body building plate, the bracket is arranged below is the body building plate, a rehabilitation person can flexibly adjust the inclination angle of the body building plate through the bracket, and therefore the rehabilitation effect of the rehabilitation person is greatly improved.

The invention relates to an energy-saving ship capable of efficiently decomposing resistance. The energy-saving ship comprises a ship body and a direct current propeller and is characterized in that a bilge of a hull is provided with a bow water absorbing horn mouth, a connecting pipeline and left and right water drain channels. The direct current propeller is installed in the connecting pipeline. The connecting pipeline is connected and communicated with the bow water absorbing horn mouth, water inlets of the left and right water drain channels are connected and communicated with the connecting pipeline, water outlets of the left and right water drain channels are located in the left side and the right side of the hull respectively, a left valve and a right valve are arranged in the left and right water drain channels respectively, and multiple balancing air pipes are arranged at the tail in the hull. As the bow water absorbing horn mouth and the balancing air pipes are arranged, the maximum resistance generated by counter impact of the bow and water and the resistance formed by vacuum in the stern in the ship sailing process can be efficiently decomposed, and the ship has the advantage of low sailing resistance; the risk that the ship is prone to capsizing when being steered abruptly in the high-speed sailing process is eliminated; the problem that because the ship is located in water, the propeller is difficult to maintain or replace is solved.

The invention relates to a counterforce offsetting device and a pasting machine having the device. Disclosed here is a counterforce offsetting device. The device has a conveying system with a moving element. The counterforce generated by the motion of the moving element is transmitted to a mass element moving in a direction perpendicular to the moving direction of a supporting element. Meanwhile, the counterforce is converted into energy for moving the mass element. The counterforce is thus offset. A simple structure of a counterforce system is then achieved. Even if the conveying system is moving a direction different from the moving direction of the moving element, the counterforce generated by the motion of the moving element can be offset.

The invention provides an unmanned aerial vehicle, specifically a compact unmanned aerial vehicle, which belongs to the field of aircrafts. The compact unmanned aerial vehicle comprises a propeller hub, rotors and a power output shaft, wherein the rotors are mounted on the propeller hub; and the power output shaft is positioned under the propeller hub and connected with a rotor driving motor. The rotor driving motor is placed on a vehicle frame; a flight control system, a speed regulation controller of the rotor driving motor and a battery are all mounted within the vehicle frame; at least two rotors are respectively mounted at two ends of the vehicle frame; and the two rotors are distributed in the same horizontal plane up and down in high and low forms. The structure size of the unmanned aerial vehicle is integrally reduced; the volume space of the folded unmanned aerial vehicle is further reduced by using a foldable management scheme; by using the unmanned aerial vehicle which adopts a mode of forming the two rotors at different heights to generate an overlapped part, the integral size of the unmanned aerial vehicle is further reduced; without affecting lifting flight balance capacity of the unmanned aerial vehicle, compact design is further performed to provide small volume so as to achieve a portable purpose.

The invention discloses an electromagnetically driven-electro-hydraulic pipe forming device and method. The device comprises a power supply module, a forming module, a boosting module, a forming moldand a fixing unit; a power supply 1-2 for forming is triggered to make a metal wire 2-2 chemically react with liquid in a chamber 6 to produce an explosive shock wave to drive a workpiece to be formedto generate plastic deformation, and is formed under the restraint action of a mold cavity 4-1. In addition, a power supply 1-1 for boosting triggers a boosting coil 3-1 to generate induced eddy currents and a time-varying magnetic field on a drive plate 3-2, through timing sequence cooperation, axial boosting electromagnetic force is provided for the whole forming process, and meanwhile, the drive plate 3-2 transmits the electromagnetic action force to the end of the workpiece to be formed 7, thereby increasing the axial motion tendency of a pipe and improving the fluidity of a material; andtherefore, under the synergistic effect of the high-speed shock wave load and the axial boosting force of the drive plate, the plastic deformation processing of the workpiece to-be-formed 7 can be realized, and the forming capability and the mold attaching performance of the workpiece can be effectively improved.

The invention relates to a push-pull rotational trenching machine for trenching on basic underground walls of buildings. A hinged support is arranged at the lower end of an upright post; a slide bar is connected to the upper end of the upright post; a sliding bush is arranged on the periphery of the slide bar, and is fixedly arranged on a driving rod through a connecting block; the right end of the driving rod is hinged at the left end of a driving hydraulic cylinder; the right end of the driving hydraulic cylinder is hinged on the upright post; a plurality of gear boxes are arranged on the lower part of the driving rod; the gear box are connected through a linking rod; a cutter head A and a cutter head B are arranged at the lower end of each gear box; and the cutter A and the cutter B are respectively provided with a plurality of drilling teeth.

A power conversion device includes a plurality of semiconductor modules, a plurality of coolers, and a frame. The frame pressurizes and holds a stacked body in which the semiconductor modules and the coolers are alternately stacked. The frame includes a first frame and a second frame that sandwich the stacked body therebetween. The first frame is a plate material bent to surround the stacked body from three directions, and includes a pair of side walls extending in the stacking direction of the stacked body, and an abutting wall extending between the side walls and abutting the stacked body. The abutting wall is bent outward from the frame. Each of the side walls is bent inward from the frame.

The invention discloses a magnet therapy fitness rehabilitative apparatus which comprises a rotating device, an adjusting support and a fitness board. The rotating device is composed of a transverse rod and a vertical rod fixedly connected to the middle of the transverse rod. The adjusting support is composed of a hollow vertical supporting rod and a connecting rod. The vertical rod is connected with the upper end of the hollow vertical supporting rod in a rotating mode. The fitness board is connected with the lower end of the hollow vertical supporting rod. The left end of the transverse rod is provided with a left clamping ring, the right end of the transverse rod is provided with the right clamping ring, the lower portion of the left end of the transverse rod is connected with a left supporting board through a first connecting rod, and the lower portion of the right end of the transverse rod is connected with a right supporting board through a second connecting rod. One side of the fitness board is fixedly connected with a first side board, the other side of the fitness board is fixedly connected with a second side board, and magnet therapy blocks are evenly distributed on the surface of the fitness board. When a recovery person uses the magnet therapy fitness rehabilitative apparatus, the left foot and the right foot cannot slide down from the transverse rod due to the additionally arranged left clamping ring and the right clamping ring which are used in cooperation with the left supporting board and the right supporting board, the magnet therapy fitness rehabilitative apparatus is easy to control, small in operating difficulty and good in recovery and fitness effects, and the recovery effect of the recovery person is greatly improved through the magnet therapy blocks.

The invention discloses a wear resistance testing device for a phosphate wear-resistant brick and relates to the technical field of refractory bricks. The device comprises a shell, an inner bottom surface of the shell is fixedly connected with a driving motor, one end of an output shaft of the driving motor penetrates through the shell and is fixedly connected with a friction wheel, the inner bottom surface of the shell is fixedly connected with a controller, a top surface of the shell is fixedly connected with a switch and a display screen, an output end of the switch is electrically connected with an input end of the controller through an electric wire, and an output end of the controller is electrically connected with an input end of the driving motor through an electric wire. Accordingto the wear resistance testing device, the descending speed of a refractory brick after friction is amplified through a transmission structure of a rotary gear and a connecting rope, the improvementof the detection precision is facilitated, the rotating speed of the rotary gear is measured by a speed measuring sensor, the rotating speed of the rotary gear is converted into the descending speed of the refractory brick by the controller, compared with the prior art, the wear resistance of the refractory brick can be visually observed and tested, and reading errors are avoided.

A method of forming an apparatus for probing die electricity, which determines a reinforcement structure according to features of a converting plate, and combines the converting plate, reinforcement structure and a substrate for forming the apparatus for probing die electricity. In an embodiment, the apparatus for probing die electricity further comprises a substrate, a converting plate, a needle module and a reinforcement structure. The converting plate comprises two opposite surfaces respectively having a plurality of first and second conductive elements. The needle module comprises a plurality of needles respectively and electrically connected to the plurality second conductive elements. The reinforcement structure is disposed between the converting plate and the substrate.

The invention discloses a reflector deflection device. The device comprises a reflector, a reflector base, a substrate, a first elastic element, a second elastic element, a first magnetic element, a second magnetic element, a compensation plate, a base and a displacement sensor; the reflector base is arranged at one side of the substrate, the first elastic element and the first magnetic element are arranged at one side, opposite to the reflector base, of the substrate; one side, opposite to the reflector base, of the substrate is arranged at one end of the base through the first elastic element; the compensation plate is arranged at the other end of the base through the second elastic element, the second magnetic element is arranged at the same side of the substrate and the second elasticelement, and a magnetic field can be produced between the second magnetic element and the first magnetic element so that the first magnetic element and the second magnetic element can mutually slide and cooperate; and the displacement sensor is arranged on the base. When the reflector and the substrate perform deflection movement under the driving force of the first magnetic element, the compensation plate can perform deflection movement towards an opposite direction in the same frequency and amplitude under the driving of the counterforce of the second magnetic element, thereby counteractingthe counterforce of the deflection of the reflector.

The invention relates to a butterfly helicopter. The butterfly helicopter is characterized in that three wing plates are vertically installed under a single rotor; downward airflow generated by the rotor allows the wing plates to generate horizontal thrust so as to counteract the reaction force of the rotor; three cones around the rotor compose a butterfly cabin which is connected to a spindle sleeve located on the lower part of the rotor by three inclined pull bars via movable bolts; the upper parts of the wing plates are provided with three horizontal hydraulic rods; the gravity center of the helicopter is moved through telescoping; the rotor inclines so as to generate thrust moving towards one side; and flaps are controlled so as to maintain or change the turning direction of the cabin,so the butterfly helicopter can realize omnibearing flight. The rotor is mounted inside the butterfly cabin and is thus protected, and the conical shells of a generator and a gearbox can reduce powerloss. The armored cabin with a triangular cross section has stealth and protection functions; in the case of falling, the wing plates generate horizontal thrust, which makes the butterfly helicopterglide in airflow; the butterfly helicopter is equipped with a large parachute to prevent crash, and pilots and passengers can escape through an ejection capsule; and the lower parts of the cabin and the engine shell are sealed, so the butterfly helicopter can land on water.

The invention provides a multi-rod quadruped robot. The multi-rod quadruped robot comprises a robot body support and mechanical legs. Each mechanical leg comprises a shock absorption device, a connecting assembly and a supporting device. The connecting assembly is connected with the supporting device; the shock absorption device is arranged between the connecting assembly and the supporting deviceand connected with the connecting assembly and the supporting device. When the mechanical legs are in contact with the ground, a part of reaction force of the ground to the mechanical legs is offsetby the shock-proof device; the other part of reaction force is transmitted to the upper bracket through the lower bracket; the other part of the reaction force is transmitted to the shock-proof deviceby the upper bracket to be counteracted; therefore, the reaction force of the ground on the mechanical legs can be fully counteracted; the acting force is prevented from being transmitted to a fuselage bracket; the damping effect is good; when the fuselage bracket bears a load, the mechanical legs need to bear large pressure; by arranging the shock absorption device for buffering, the pressure needing to be borne by the mechanical leg is reduced, and then the situation that swinging is unstable during movement is avoided.

The invention relates to a gear cutting machine on a gear shaft integrated piece. The gear cutting machine comprises a rack and a distribution control box; the rack is provided with a vertically reciprocating rotation device and a clamping catch plate which are matched with each other, and the clamping catch plate is matched with a product; a swing device is arranged at the position, on the side portion of the clamping catch plate, on the rack, and the swing device is provided with gear cutting devices matched with the gear part of the product on the clamping catch plate; each gear cutting device comprises a swing seat arranged on the swing device, each swing seat is transversely and horizontally provided with a gear cutting feeding air cylinder, each gear cutting feeding air cylinder is connected with a gear cutting feeding seat, each gear cutting feeding seat is provided with a gear cutting cutter seat, and each gear cutting cutter seat is provided with a gear cutting plane cutter matched with the gear part of the product. The gear cutting devices are connected to the swing device, through vertical movement of the product, and the planing effect on the product is achieved through a cutter; the planing angle is adjusted through the swing device so that a cut can form a gear shape, the cutting plane is flat and free of secondary polishing, machining precision is high, and breaking and damage to the cutter are avoided.