203results about How to "Change direction of motion" patented technology

The invention provides a high-maneuverability looper type creeping robot capable of doing the creeping movement and the looper type movement at the same time. The creeping robot comprises a head and atail located at the two ends. The interior comprises a power source, a controller and a sensor module. A drive part, covered with flexible skin, between the head section and the tail section is composed of at least four same driving mechanisms. Each driving mechanism is a specially-designed three-freedom-degree mechanism, the driving mechanisms can rapidly move forwards, and due to the full hemisphere rotation capability of the driving mechanisms, the robot can sharply steer and elevate a trunk with the smaller radius. Thus, the creeping robot can penetrate a small gap beneficially and can avoid obstacles through sharp turning or crawling. Through the motion manner, the creeping robot can be applied to multiple fields such as operation endoscopy, petroleum and natural gas industry pipeline checking and search and rescue actions of flood, earthquake or nuclear accidents or other disasters.

The invention relates to an earthquake experiencing device, comprising an experiencing room, a first oil cylinder, an electro-hydraulic servo valve, a hydraulic pressure power source and an oil source auxiliary equipment which is used for guaranteeing constant output of the hydraulic pressure; the experiencing room is arranged on a desk frame; the desk frame can be arranged on a first motion guide in a horizontal slipping way; a rod of the first oil cylinder is in rigid connection with the desk frame; the first oil cylinder is the double-rod cylinder; the first oil cylinder is connected with the electro-hydraulic servo valve which is connected with the hydraulic pressure power source; the hydraulic pressure power source is connected with the oil source auxiliary equipment; the electro-hydraulic servo valve is connected with a seismic modeling controller which is used for calculating a valve port opening signal according to the seismic displacement data and outputting the valve port opening signal to the electro-hydraulic servo valve. The invention provides the earthquake experiencing device which can reproduce the real earthquake well and strengthen the experience effect, and has the advantage of rational structure.

The invention discloses a method for forming a contact hole, which comprises the following steps of: sequentially forming an insulating medium layer, a hard mask layer and a photoresist layer on a semiconductor substrate; forming the graph of a contact hole opening on the photoresist layer; by taking the photoresist layer as a mask, etching the hard mask layer along the graph of the contact hole opening so as to form the contact hole opening; removing the photoresist layer; by taking the hard mask layer as the mask, etching the insulating medium layer to a certain depth along the contact holeopening by a plasma etching process, wherein the depth is one third to three fourths of the depth of a target contact hole; determining the type of charged ions accumulated on the surface of the hardmask layer, and introducing plasmas of which the type is opposite to that of the charged ions into a reaction chamber until the charged ions are neutralized; and by taking the hard mask layer as the mask, continuing to etch the insulating medium layer until the semiconductor substrate is exposed so as to form the target contact hole. The contact holes with uniform opening width can be formed by the method.

The invention provides a linear motor for a stirling refrigerator with an axial magnetic path. The linear motor comprises a stator, a mover and a plate spring, wherein the stator consists of a shell, a left stator core and a left stator coil, a right stator core and a right stator coil and the plate spring; the mover consists of inner magnetic steel, outer magnetic steel, a mover bracket and a piston; the inner magnetic steel is separated from the outer magnetic steel through a magnetism isolating ring; and the inner magnetic steel and the outer magnetic steel have opposite magnetizing directions and are axially magnetized. The linear motor has the advantages that: the magnetizing direction of the magnetic steel is axial; if the mover is deviated along the radial direction when the mover does reciprocating motion along the axial direction, a force opposite to the deviation direction of the mover is produced due to self-correction effects of a stator magnetic field and a mover magneticfield, so the linear motor ensures that the mover is not greatly deviated along the radial direction in a motor running process and plays a role in automatically correcting the deviation caused by anexternal force. Therefore, friction between the piston and a cylinder body can be avoided and the service life of the refrigerator is prolonged.

A floating-type pesticide-spraying machine includes a small handcart (7) and a pesticide storage container (3) fixedly installed on the handcart (7), and is characterized in that a water suction tube (2) is arranged in the pesticide storage container (3); the lower end of the water suction tube (2) is provided with a linking nozzle (1); the upper part of the pesticide storage container (3) is provided with a water suction pump (6) which is fixedly installed on the small handcart (7) by a fixing plate (4); the water suction tube (2) is connected with a pesticide transmission tube (5) by the water suction pump (6); the pesticide transmission tube (5) is communicated with a pesticide-spraying rod (8); a hydrogen balloon (9) is arranged on the pesticide-spraying rod (8) by a connecting piece (10); the pesticide-spraying rod (8) is provided with a nozzle (11); and the end part of the pesticide-spraying rod (8) is provided with a sealing element (12). The floating-type pesticide-spraying machine can realize super large-area high-speed pesticide spraying, can conveniently change the moving direction and speed due to low energy consumption and freely choose the road conditions, and simultaneously has low manufacturing requirements.

The invention discloses a conductive liquid micro driving device and applications thereof. Multiple rectangular coils form a coil array, multiple sequentially-arranged electromagnetic poles are formed, insulation layers are arranged among wires of the rectangular coils, magnetic conductive layers fills gaps of the wires of the rectangular coils coated by the insulation layers and the outer parts, a sealing cover realizes functions of three protection and mechanics and the like, inverters are connected with the rectangular coil array, a time-varying electric field generates a traveling wave magnetic field in the same direction and an electromagnetic force, the electromagnetic force drives the conductive liquid to flow, a flexible substrate can be connected with a selected mounting part, and a pipeline inner wall or an outer wall phase in a different shape can be matched. Accurate control on different components, the flow amount, the flow direction and the flow speed of the conductive liquid can be realized, and the conductive liquid micro driving device has the advantages that the overall structure is compact; the device is flexible and deformable; pressed driving does not exist; no push rod mechanism is needed; the pipeline can be cleaned by itself; assembly and disassembly are convenient; the space utilization rate is high; the application range is wide; the use is simple; portability is realized; the noise is small; the service life is long and the like.

A hydrulically driven cleaner for cleaning flat field has a water pump, a directional water draining pipe, and a water flow controller between the water outlet of water pump and said directional water draining pipe and with two working positions for controlling the direction of spraying water. A method for changing the strength and direction of sprayed water flow is also disclosed.

The invention provides a tiny spherical underwater submergence device based on water jet propulsion, which includes a shell and a driving and adjusting device arranged in the shell; the shell is a spherical sealed shell; the components of the driving and adjusting device include a seal cabin the two ends of which are arranged in the spherical sealed shell by a fixing pole support; two water spray motors are arranged in the seal cabin; water inlet tubes and water outlet tubes of the water spray motors penetrate the seal cabin and the spherical seal shell; besides, the diameters of the water inlet tubes of the water spray motors are smaller than the diameters of the water outlet tubes; the two symmetrical side surfaces of the seal cabin are provided with circuit boards; the other tow symmetrical side surfaces of the seal cabin are provided with battery tanks; the fixing pole supports at each end of the seal cabin are provided with a motor bracket; a motor cabin is arranged on the motor bracket; a fly wheel motor is arranged in the motor cabin; a fly wheel is arranged on the shaft of the fly wheel motor. The tiny spherical underwater submergence device based on the water jet propulsion has the advantages of higher flexibility, being capable of reducing the working noise to the utmost extent, simple material, small volume and low cost.

The invention provides a novel adjusting system for stationary blades of an axial flow fan. The system comprises a servo motor, a bidirectional quantitative gear pump and an oil tank, wherein the bidirectional quantitative gear pump is fixedly arranged in the oil tank and driven by the servo motor to rotate. The system further comprises two hydraulic cylinders, and adjusting oil cylinders which are correspondingly connected with the two hydraulic cylinders and used for adjusting the angles of the stationary blades; the bidirectional quantitative gear pump correspondingly communicates with the two hydraulic cylinders through two oil channels and supplies pressure oil to the two hydraulic cylinders; the hydraulic cylinders can drive the adjusting oil cylinders to adjust the angles of the stationary blades. The system provides position close-loop control and pressure close-loop control, so that the rotating speed of the servo motor and the position and pressure of a hydraulic system can be accurately controlled to meet various working requirements of the stationary blade adjusting system; the system can accurately adjust the angles of the stationary blades and has the advantages of saving energy, being environmentally friendly, and insensitive to oil pollution, and greatly reducing the capacity of a hydraulic device.

The invention discloses a massage chair back which comprises a support, a machine core, a rotating lead screw and a fourth motor. Guide rail grooves are arranged on the two sides of the support. The two sides of the machine core are connected with first sliding blocks. The first sliding blocks can slide up and down along the guide rail grooves. A nut is arranged on the machine core. A thread of the nut is matched with a thread of the rotating lead screw. The upper and lower ends of the rotating lead screw are in rotating connection with the upper and lower ends of the support. One end of the rotating lead screw is connected with a belt wheel. The belt wheel is connected with the fourth motor through a belt. The machine core comprises a first motor, a second motor, a third motor, a massage arm, a first rotating shaft, a connecting device and a pushing device. The first rotating shaft is connected with the first motor. The first rotating shaft is sleeved with the massage arm through a first eccentric bearing. One end of the connecting device is connected with the second motor, and the other end of the connecting device is connected with the massage arm. The third motor is connected with the second motor through the pushing device. The pushing device pushes the second motor to move up and down. The massage chair back has the advantages that multidirectional movement can be achieved, and the massage comfort is improved.

The invention, which belongs to the technical field of unmanned aerial vehicle cluster control, discloses an unmanned aerial vehicle cluster path planning processing method based on an artificial potential field, and an unmanned aerial vehicle. The method comprises the steps: carrying out conversion to obtain a position dot matrix of an unmanned aerial vehicle array according to a target shape andsequence of the unmanned aerial vehicle array, and generating a target waypoint array of a single unmanned aerial vehicle; on the basis of an artificial potential field method, calculating a repulsive force FRi of the single unmanned aerial vehicle by other unmanned aerial vehicles in the cluster and a resultant force FR of all the repulsive forces; calculating a target point gravitation FG of the single unmanned aerial vehicle; simulating flight, calculating a resultant force received by the unmanned aerial vehicle according to the gravitation FG and the repulsion FR, and adjusting an expected waypoint of the unmanned aerial vehicle in the next step according to the resultant force; and finally, forming a safe track for each unmanned aerial vehicle to finish the track planning work of the whole unmanned aerial vehicle cluster. The method is suitable for solving a path planning problem of a large-scale unmanned aerial vehicle cluster during formation flight, and the unmanned aerial vehicle cluster path planning processing method has the characteristics of easiness in implementation, high safety, high reliability and good unmanned aerial vehicle cluster control effect.

The invention provides a fish-like underwater vehicle with high maneuverability, which comprises a head, a middle section shell, a back section shell, a tail, a first pectoral fin, a second pectoral fin and a head bottom shell. The head part, the middle part shell, the back part shell and the tail part are sequentially connected through the steering gear; The caudal fin is fixed on both sides of the caudal part; The head is provided with a microcontroller, a power supply and a first steering gear; The first pectoral fin and the second pectoral fin are mounted on both sides of the head and connected with the first steering gear through a connecting rod, so that the pitch angle of the first pectoral fin and the second pectoral fin can be adjusted; A first motor and a second motor are mountedon the first pectoral fin and the second pectoral fin, and the lower end of the motor is connected with the propeller. The fish-like underwater vehicle with high maneuverability improves the maneuverability and flexibility of the fish-like underwater vehicle, and improves the obstacle avoidance ability of the fish-like underwater vehicle. Rich motion forms of fish-like underwater vehicle can notonly stabilize forward, but also achieve emergency brake, float up, change the direction of motion quickly, and enhance the adaptability of fish-like underwater vehicle to complex environment.

The invention relates to the technical field of bridge pier collision avoidance, and especially relates to a gravity type self-resetting pier anti-collision device structure. The anti-collision devicestructure comprises a bearing platform arranged outside a pier in a sleeving mode, a main body steel shell arranged on the edge of the top of the bearing platform, an anti-collision steel block, a supporting steel column and a weight block, the outer side wall and the upper surface of the main body steel shell are provided with a groove used for allowing the anti-collision steel block to be inserted in and an opening used for allowing the supporting steel column to be inserted in respectively, and the opening communicates with the groove; the top of the inner end of the anti-collision steel block is provided with a slope inclining downwards; the top of the supporting steel column is connected with the bottom of the weight block, and the bottom of the supporting steel column is provided with a first pulley which slides in cooperation with the slope; and at least one extension spring is arranged between the weight block and the upper surface of the main body steel shell. The device structure has the advantages of being low in material price, simple in structure, convenient to construct, suitable for old bridges and new bridges, capable of being repeatedly used, easy to detect and maintain, convenient to disassemble and the like.

The invention discloses an electric infiltration phenomenon-based reversible micro-pump. The electric infiltration phenomenon-based reversible micro-pump comprises an annular pump cavity and a liquidchannel formed in the annular pump cavity; mesh holes are formed between the annular pump cavity and the liquid channel; the liquid channel comprises a first pump port and a second pump port, an electric infiltration power mechanism is arranged in the annular pump cavity, and the electric infiltration power mechanism comprises an electric infiltration liquid held in the annular pump cavity, an electrode array ring nested on the side wall of the annular pump cavity, and a dielectric hydrophobic material ring nested on the outer surface of the electrode array ring; a liquid replacing structure is arranged on the annular pump cavity; and the electric infiltration liquid and the pumped liquid are mutually insoluble. The micro-pump does not have a mechanical structure, is simple in design, andcan avoid mechanical wear produced in the using process of the micro-pump, so that the service life of the micro-pump is prolonged; and in addition, the micro-pump can control the pumping direction ofa fluid, and directional flowing of the pumped solution can be realized at both micro level and macro level.

The invention relates to a kettle available for electricity and fire, which comprises a spout, a kettle body, a kettle cover mounted with an electric heating device and a whistle. The invention is characterized in that: bottom of the kettle mouth and the kettle cover is higher than the lowest place of the spout head and the root of the highest place of the spout is higher than the water surface for ever, thus water vapor can easily burst out from the spout, which effectively prevents overflowing water and steam from the kettle mouth. The invention has the advantages of satisfying the requirement for burning water with electricity or fire with one kettle and preventing from overflowing water and steam at kettle cover safely, reliably, conveniently and durably with long service life. Only one kettle is enough for one family, thus saving the space in kitchen and cost for buying kettle, which can be resumed as the ideal appliance for burning water for modern family.

The invention provides a fan and a method for replacing a filter of the fan. The fan comprises a body part and a nozzle. The body part comprises an air inlet, an air outlet, the detachable filter anda fan motor assembly used for generating airflow. The nozzle is connected with the air outlet and used for receiving the airflow from the body part and ejecting airflow which then enters the nozzle along with the received airflow. An air outlet of the fan motor assembly is connected with two guide airways, and the guide airways communicate with openings on the two sides of the body part respectively; an accommodating space is defined between a first side surface of the body part and a first side surface of a nozzle body, the accommodating space is provided with at least one replacing channel for the filter to enter or leave the accommodating space, and the extending direction of the replacing channel is perpendicular to a second direction; and the filter has a first stroke for entering orleaving the accommodating space from the body part in the second direction and a second stroke for entering or leaving the accommodating space from the replacing channel.

The invention discloses a smoke dust removal system. The smoke dust removal system is characterized by comprising an air guide pipe communicated with a pollution source, a cyclone device for holding filtrate, a first treatment chamber for holding filtrate, at least one second treatment chamber, a plurality of filtering balls and at least one liquid passing box, wherein the air inlet end of the cyclone device is communicated with the air guide pipe and is used for guiding the pollution source to rotate; the air inlet end of the first treatment chamber is connected with the cyclone device; the second treatment chamber comprises a filtering chamber for holding the filtrate and an air guide chamber used for guiding the pollution source to enter the filtering chamber; and the plurality of filtering balls are capable of moving along with the pollution source, are respectively arranged in the filtrate in the first treatment chamber, the filtering chamber and the cyclone device, and are provided with surfaces capable of attaching dust particles in the pollution source; the liquid pass box comprises a box body for holding the filtrate and an air conveying pipe, wherein the air inlet end of the air conveying pipe is connected to the second treatment chamber, and the air outlet end of the air conveying pipe is arranged below the liquid level of the box body.

The invention discloses a wedge-shaped debris flow-dividing blocking device and a construction method thereof. The device comprises a circular-arc-shaped blocking wall and two wing-shaped blocking walls. The circular-arc-shaped blocking wall is located at the foremost end of the whole device, and the wing-shaped blocking walls are fixed to the two sides symmetrically. Unbonded prestress systems are arranged in the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly. Each unbonded prestress system comprises a plurality of vertical unbonded prestress stranded steel wire devices which are composed of stranded steel wires, anchorage devices and corrugated pipes. Foundation slabs are arranged at the bottoms of the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly, and uplift pile foundations are additionally arranged under the foundation slabs provided with the unbonded prestress systems correspondingly. According to the device and method thereof, the unbonded prestress systems are arranged in the large stress areas, a good energy consumption effect is achieved, and dynamic response of the whole device is reduced. Whenthe device is impacted by debris, the flowing direction of the debris can be changed while the stability of the device is guaranteed, the impact energy is dissipated, and the safety of significant buildings or structures behind the device is guaranteed.