8results about How to "Simple structure and portable" patented technology

The invention discloses a transmission tower body angle steel corrosion defect detection method, which comprises the following steps: designing an excitation device, and carrying out saturation magnetization on transmission tower body angle steel; arranging a Hall sensor, and collecting a magnetic flux leakage signal; carrying out filtering processing and feature extraction on the magnetic flux leakage signal acquired by the Hall sensor; establishing a fitting relationship between the defect parameters and the magnetic flux leakage characteristic quantity; and quantitatively detecting the size of the angle steel corrosion defect of the to-be-detected transmission tower body. Whether the transmission tower has a defect or not is judged and the size of the defect is quantitatively judged by detecting the magnetic flux leakage signal on the surface of the transmission tower angle steel, so that the corrosion defect size of the transmission tower body angle steel is accurately and quickly diagnosed, the reliability is good, the detection efficiency is high, the operation is simple and convenient, and the magnetic flux leakage detection device is simple and portable in structure, low in cost and easy to popularize. A theoretical basis is provided for avoiding electric power accidents caused by tower corrosion defects, and the method has important engineering significance.

The invention relates to the technical field of agricultural machinery, in particular to a handheld oil tea fruit harvesting device. The handheld oil tea fruit harvesting device comprises a rack, a driving mechanism, a harvesting mechanism and a controller; the driving mechanism is fixed at one end of the rack; the driving mechanism is connected with the harvesting mechanism, and the controller controls the driving mechanism to drive the harvesting mechanism to reciprocate at different speeds; the harvesting mechanism comprises a connecting plate, a winding drum rotation driving motor, a rope winding drum, a rope and a manipulator, the winding drum rotation driving motor, the rope winding drum, the rope and the manipulator are mounted on the connecting plate, the winding drum rotation driving motor drives the rope winding drum to rotate, one end of the rope is wound and fixed on the rope winding drum, and the other end of the rope is connected with the manipulator; and the manipulator is used for grasping or loosening the camellia oleifera tree branches. The invention further provides a using method of the handheld oil tea fruit harvesting device. The handheld oil tea fruit harvesting device is low in vibration sense and high in harvesting efficiency.

The invention relates to a standard source device for calibrating a two-wire system 4-20mA current signal conditioning module. The standard source device comprises an ammeter, a display window, a gear dial selection knob, a wiring port, a resistor and a box body, according to the invention, the defect that the operation of manually adjusting different current values by using a sliding potentiometer is tedious and time-consuming when the two-wire 4-20mA current signal conditioning module is calibrated is overcome, and the rapid and accurate input of a current reference value is also realized through the device. According to the device, key equipment is indispensable when the calibration of the two-wire system 4-20mA current signal conditioning module is completed, and the linearity and accuracy of the measurement of the two-wire system 4-20mA current signal conditioning module are ensured, so that the correctness of data measured in an arc wind tunnel test is ensured, the quality of each data in the test is improved, and the measurement accuracy of the two-wire system 4-20mA current signal conditioning module is improved. And the method plays an important role in data acquisition of an arc wind tunnel test.

The utility model relates to the technical field of rehabilitation apparatus, concretely relates to a portable wrist joint autonomous rehabilitation exercise traction device, its characterized in that: including lower arm supporting plate, palm holding plate, first mounting seat, second mounting seat, traction drive mechanism and one-way self locking mechanism, lower arm supporting plate installs on the first mounting seat, palm holding plate installs on the second mounting seat, and at least one bandage assembly is equipped on lower arm supporting plate and palm holding plate, and the second mounting seat is slidably connected with the first mounting seat through the sliding assembly, and the traction drive mechanism is used for moving the second mounting seat relative to the first mounting seat, and the one-way self locking mechanism is used for playing one-way self locking effect to the movement of second mounting seat. The utility model whole simple structure is portable, convenient operation, is suitable for family use, can realize the adjustment to the traction force, effectively ensures the stability and accurate control of traction force, can better satisfy the autonomous rehabilitation exercise demand of patient, improves rehabilitation efficiency and treatment effect simultaneously.

The invention discloses a rhinitis vibration therapeutic instrument, and belongs to the field of medical instruments, the rhinitis vibration therapeutic instrument comprises a main body formed by connecting one ends of two shells, the connecting end of the shell is provided with a torsion spring and can axially rotate, symmetrical vibration heads are embedded in the opposite sides of the two shells respectively, and vibration motors are arranged in the vibration heads; a key and a first charging contact are arranged on the shell, a second power source and a second charging contact matched with the first charging contact are arranged in the sleeve shell, a patient is assisted in removing secretions in the nasal cavity through the vibration technology, symptoms such as unsmooth breathing are relieved to a certain degree, dependence on medicine is reduced, the structure is simple and portable, the operation is convenient, and the practicability is high. The operation is convenient, a patient can use the instrument in different environments by himself / herself, the treatment frequency is reduced, and the treatment convenience is improved.

This utility model provides a manual inflation fixture, belonging to the field of twin-tube shock absorber equipment. The fixture includes a sleeve, which is open at one end. During use, the sleeve end face and the cylinder end face (e.g., the cylinder body end face) are on the same horizontal plane, and the piston rod inside the cylinder (e.g., the shock absorber) is inserted into the sleeve through the sleeve opening. A sealing cavity is formed between the two end faces of the sleeve to prevent gas leakage. An air inlet is provided through the sleeve side wall, with one end connected to the sealing cavity and the other end connected to an external air source. This utility model is suitable for using a simple structure to inject nitrogen into a twin-tube shock absorber to compensate for its performance. At the intersection of the piston rod and cylinder, a component is used to pry open a gap in the oil seal. The sleeve is then fitted onto the intersection of the piston rod and cylinder, forming a sealing cavity between the two end faces. Gas is injected into the sealing cavity, and the gas enters the cylinder (e.g., the shock absorber) through the gap between the oil seals.

The invention discloses a multi-droplet operation device based on surface acoustic wave, comprising a lithium niobate substrate, N interdigital electrodes, an operation panel, a vibration-absorbing glue and a control module; the operation panel is arranged at the center of the lithium niobate substrate, and the N interdigital electrodes are evenly arranged around the operation panel; a planned path for droplet driving and droplet reaction is provided on the operation panel; the control module is electrically connected to the N interdigital electrodes, and is used to control the N interdigital electrodes to emit corresponding surface acoustic waves to drive the droplets on the operation panel to move on the planned path. The invention can realize precise driving, merging, and splitting of multiple droplets, and the operation panel can be replaced, which is economical.

The present application relates to a device for detecting the position of steel bars in reinforced concrete construction, and relates to the technical field of reinforced concrete engineering construction, which includes: a caliper base, on which a guide slot is provided, and a linear scale is provided on the caliper base located on the outer edge of the guide slot; a laser sight, which is installed on the lower surface of the caliper base, and the emission port of the laser sight is set downward for emitting laser; a measuring part, which includes: a probe rod, which is adapted to be accommodated in the guide slot and can move along the guide slot; at the same time, the front end of the probe rod extends out of the caliper base for abutting against the steel bar to be detected; an identification piece, which is provided on the probe rod and is opposite to the linear scale; the identification piece is used to indicate the distance the probe rod moves in the guide slot to reflect the position of the steel bar to be detected. The structure of the embodiment of the present application is simple and portable, and the steel bar positioning operation is convenient, and the thickness of the protective layer of different steel bars can also be measured.