42results about How to "Simple structure and miniaturization" patented technology

The invention discloses a ship stern propelling device based on magnetic force transmission. The ship stern propelling device comprises an inner magnetic rotor, an isolating device and an outer magnetic rotor. The inner magnetic rotor comprises a shaft, an inner magnet and a clamp, the inner magnet is mounted on the shaft, and axial and circumferential limiting of the inner magnet are achieved through connection of the clamp and a key correspondingly. The isolating device comprises an isolating sleeve, a front bearing, a rear bearing, a stop catch ring and a pressing ring, the isolating sleeve is fixed to a ship body by bolts through the stop catch ring and the pressing ring, and radial supporting of the shaft end point and the two shaft shoulder points is provided by the front bearing and the rear bearing which are arranged in the isolating sleeve. The outer magnetic rotor is composed of an outer sleeve and an outer magnet, the outer sleeve is connected with an outer power machine, and the outer magnet is embedded to the outer sleeve. According to the ship stern propelling device based on magnetic force transmission, the technical problems that an existing propelling device is low in anti-pressure capacity, low in sealing reliability and limited in arrangement space under the severe using environment are solved.

The invention discloses a portable geological disaster monitoring device. A modular GNSS positioning module, a battery, a communication module and a battery manager are installed in the equipment box.An equipment box is detachably fixed to an installation base, the bottom end of the installation base is detachably fixed to a ground drilling pile through a connecting rod, the ground drilling pilecomprises a drilling rod, tilting pieces inclining upwards are arranged on the two sides of the drilling rod, and a nut cap is in threaded connection with the top end of the drilling rod and fixedly connected to the installation base through a connecting rod. In the embodiment of the invention, the structure is simple, lightweight, easy to carry and firm and stable enough. During installation, theground drilling pile is hit into a soil layer, the warped pieces make friction contact with soil, on one hand, the ground drilling pile is prevented from being pulled up, on the other hand, sedimentation can be avoided, the structure is simple, light and easy to carry, and meanwhile firmness and stability are achieved.

The invention discloses an independent controllable intake-exhaust two-stroke (capable of being changed into four-stroke) internal-combustion engine system which is used for solving the defects including low fuel efficiency, large emission pollution, participation of engine oil in combustion and the like of a two-stroke internal-combustion engine by applying the independent controllable intake-exhaust system, so that the energy is saved, the emission is reduced, the pressurized working conditions of the two-stroke internal-combustion engine are realized, the defect that the power per liter of a four-stroke internal-combustion engine is lower than that of the two-stroke engine is solved, and a completely new function of freely converting between the two strokes and the four strokes in one internal-combustion engine is creatively realized. Moreover, the independent controllable intake-exhaust two-stroke internal-combustion engine system is simpler in structure, lighter, provided with theoretical maximum power which is twice that of the conventional four-stroke pressurizing internal-combustion engine, integrated with the advantages of the two-stroke internal-combustion engine and the four-stroke internal-combustion engine and capable of making up the defects of the two-stroke internal-combustion engine and the four-stroke internal-combustion engine, and therefore, the independent controllable inlet-exhaust two-stroke internal-combustion engine system is an internal-combustion engine system with a completely new principle and a completely new manufacturing method, and a novel power choice is provided for the vehicle industry and other equipment manufacturing industries.

The invention discloses a hydraulic stop valve and an application method. The hydraulic stop valve comprises a valve body, a valve element, a base and a steering engine; the valve body is provided with a transverse liquid channel and a longitudinal valve element cavity; the valve element is embedded in the valve element cavity of the valve body; a transverse through hole for enabling liquid to circulate is formed in the middle part of the valve element body; the valve element body is provided with an annular guide groove, a longitudinal guide groove and a communicating balance groove; a projected eccentric positioning block is arranged at the bottom of the valve element body, and is matched with the base; the steering engine is fixed on the valve body; an output shaft of the steering engine is connected with a valve element shaft at the upper end of the valve element through a transmission gear; the hydraulic stop valve is connected to a liquid pipeline; the steering engine is connected with a remote control system; and the remote control system controls the rotating speed and the rotating angle of the steering engine through electric signals.

The invention discloses an RFID electronic control lock. The RFID electronic control lock comprises a lock cylinder and a rotary knob, wherein the rotary knob is connected to the lock cylinder for driving the lock cylinder to rotate; an RFID control module and a password control module connected to a CPU independently control a locking device to control whether the lock cylinder can rotate. According to the RFID electronic control lock, the password unlocking function and the RFID unlocking function are integrated, circuits are simple, the operation is convenient, the functions are diverse, the operating functions are convenient to use, the structure is simple and the size is small.

The invention discloses a hydraulic pressure engine based on a reversing valve. The hydraulic pressure engine comprises the reversing valve, an engine body, a transmission assembly, a water inlet pipe, a water draining pipe and a communicating pipe; the reversing valve comprises a shell and a valve core; the valve core is rotatably mounted in an inner cavity of the shell in a sealing mode, and thevalve core makes the reversing valve switch between the two states of water inlet and water draining through rotating; the engine body comprises a cylinder body, a piston, a connecting rod and a crankshaft; the transmission assembly is used for transmitting power from the crankshaft of the engine body to the valve core of the reversing valve; the water inlet pipe communicates with a water inlet of the reversing valve; the water draining pipe communicates with a water outlet B of the reversing valve; and one end of the communicating pipe communicates with a water outlet A and a water return port of the reversing valve, and the other end of the communicating pipe communicates with a water port of the engine body. According to the hydraulic pressure engine based on the reversing valve, kinetic energy of water is converted into mechanical energy, the structure of the hydraulic engine is simple and small, power output is stable and reliable, the energy conversion efficiency is high, and the hydraulic engine can be used for being connected to other power devices for doing work.

The invention relates to the technical field of input equipment of a computer, in particular to input equipment with double navigation keys. The miniaturized input equipment with the double navigation keys is simple in structure and facilitates single-finger operation. The input equipment comprises a base as well as a first navigation key and a second navigation key which are arranged on the base and can be operated with a single finger. Operation in at least five directions can be realized on each of the first navigation key and the second navigation key. According to the input equipment with the double navigation keys, main functions of a standard computer keyboard can be realized, the input equipment can be integrated to other equipment or used separately, and the input equipment can be connected with a host in a wiring manner or a wireless manner when used separately and is used for replacing the standard keyboard.

The invention discloses a crane for installing and maintaining a wind driven generator, and particularly relates to the crane for installing and maintaining the wind driven generator. The crane comprises a suspension arm, a pivotal bearing and a crane lifting base, the suspension arm is installed on the crane lifting base through the pivotal bearing, the crane lifting base is of a multi-section lifting structure, and the crane is structurally characterized by further comprising a plurality of sets of electromagnet attraction devices which are fixedly installed on the side face position of thecrane lifting base; and each set of electromagnet adsorption device comprises a plurality of electromagnet adsorption units, the electromagnet adsorption units are sequentially connected with a telescopic hydraulic cylinder through hinges, and the inner walls of the electromagnet adsorption units are in a circular arc shape and provided with electromagnets. The crane for installing and maintainingthe wind driven generator has the advantages of being simple in structure, high in maneuverability and capable of reducing the installation and maintenance cost of the wind driven generator.

The invention discloses a fast protein extraction leakage-proof stirrer which comprises a motor, a motor fixing base, a stirring component, a sealing component, a stirring fixing base, a stirring tank, a protein collecting pipe, a breathing pipe, a feeding pipe and a discharging pipe; the upper end of the motor is connected with the lower end of the motor fixing base through a flange and a bolt; the motor fixing base is fixedly connected with the stirring fixing base through the bolt; the upper end of the stirring fixing base is connected with a top flange of the stirring tank through a stud so as to seal, compress and fix the stirring tank; the protein collecting pipe is arranged on an outer wall of the stirring tank close to the lower part; the breathing pipe and the feeding pipe are arranged at the top end of the stirring tank; the sealing component comprises dual sealing of an elastic sealing element and a mechanical sealing element and adopts a temperature heating control component. The stirrer has a simple structure and a good sealing effect and is suitable for the research and development of research institutions and hospital research and development departments.

The invention discloses a welding device for plates. The welding device comprises an operation table and a welding machine. A square work-piece fixing groove is formed in the operation table, work-piece conveying parts are arranged on the two sides of one end of the work-piece fixing groove, a height-adjustable work-piece pushing device is arranged above the work-piece conveying parts, a lifting adjustment device is arranged at the other end the work-piece fixing groove, and the welding machine is fixed to the lifting adjustment device. The welding device is simple in structure, small in size, easy to control and suitable for assembly line welding of the plates.