41results about How to "Extend the use distance" patented technology

The invention discloses a novel multifunctional portable integrated socket comprising a socket case, a socket top cover, a plug, a wire control switch, a sensor chip and a telescopic mechanism. A plug built-in groove for receiving the plug is formed in the side wall of the socket case. A triangular port, a parallel port, an RJ45 cable interface, USB interfaces and a micro-USB interface are integrated. The socket top cover is arranged on the top surface of the socket case; a sensor chip board is fixed at the internal surface of the socket top cover; and a mobile phone app wireless wifi control module, a wireless charging module and a mini wireless router module are arranged on the sensor chip. According to the invention, on the premise that the occupied size is small, multiple functions of various electronic products can be realized, so that the usage efficiency of the port can be improved. Moreover, the telescopic mechanism enables the power line can extend freely, so that the usage distance of the socket is increased and the socket can be carried conveniently. A fuse is installed inside the socket, so that an objective of internal circuit protection can be achieved.

The present invention provides a code format of passive radio-frequency identification system, it can be used in a radio-frequency identification system, and contains low-level pulse with one unit length and high-level pulse with n unit lengths, and utilizes regulation of value of n to form different instructions or data formats. The invented code format can be combined with transmission characteristics of PWM and PPM data code and can provide a specific code format so as to make data transmission with specific format protocol. At the same time, it has simple demodulation function, under the condition of limited power supply of passive RFID system can prolong service distance of passive RFID system.

The invention discloses a machine for testing a bearing capacity strength of a steel beam used for building. The machine comprises first supporting bases, a case, a base and a second supporting base.Two top sides of the base are evenly provided with grooves. Inner walls of the base located below the grooves are evenly provided with sliding grooves, and sliding bases are mounted between the sliding grooves. Two top ends of the sliding bases in the grooves are evenly provided with stand columns, and the top ends of the stand columns are provided with first supporting bases. The top center of the case is provided with a hydraulic telescoping rod, and the output end of the hydraulic telescoping rod is provided with a second supporting base. According to the machine for testing the bearing capacity strength of the steel beam used for building, the machine is provided with first supporting bases, a case, a base and a second supporting base. Two top ends of the first supporting bases and thesecond supporting base are provided with fixing plates, the sides of the fixing plates are provided with another fixing plates through electric telescoping rods. The sides, away from the electric telescoping rods, of the fixing plates are provided with elastic supporting pads. The elastic tension when fixing the fixing plates is increased by the elastic supporting pads, the machine is convenientto fix the steel beam and convenient to use.

The invention discloses a rear-end preventing drive assistance device based on a 3D optical grating imaging principle, relates to the field of vehicle fitting facilities and aims to solve the problem of short detection distance of an existing distance measurement detection technique. According to the rear-end preventing drive assistance device based on the 3D optical grating imaging principle, a cylindrical-lens optical grating is composed of multiple cylindrical-lens elements. A stripe painting is arranged on a common focal plane for all the cylindrical-lens elements in the cylindrical-lens optical grating and is formed by alternatively arranging wide and narrow pure-colored stripes, the two stripe colors are different, the sum of the widths of the two stripes is equal to the distance of the cylindrical-lens optical grating, the axial directions of the multiple cylindrical-lens elements are parallel to the stripes on the stripe painting, and all the narrow stripes on the stripe painting correspond to the multiple cylindrical-lens elements respectively in a one-to-one mode and are aligned to the middles of the corresponding cylindrical-lens elements. The rear-end preventing drive assistance device is applied to the field of vehicle distance detection.

The invention provides a vacuum cleaning system which is characterized in that the vacuum cleaning system is provided with a vacuum pump, the front end of the vacuum pump is connected with a bag-type dust collector, the front end of the bag-type dust collector is connected with a cyclone separator, the front end of the cyclone separator is connected with a main pipe, the main pipe is connected with a plurality of branch pipes, and the tail end of each branch pipe is provided with a manual ball valve and a suction port; an exhaust port is arranged at the rear end of the vacuum pump; and the vacuum pump, the bag-type dust collector and the cyclone separator are all connected with a controller and controlled by the controller. According to the vacuum cleaning system, the use distance is long; and the vacuum cleaning system has more suction points, economic value in recovery and high safety.

The invention provides a hydraulic cylinder barrel with a connecting hole capable of rotating. The hydraulic cylinder barrel comprises a cylinder barrel body, the bottom of the cylinder barrel body isin bolted connection with a fixed box, a large bearing is in bolted connection to the center of the top of an inner cavity of the fixed box, and a fixed column is rotationally connected to the innerring of the large bearing. A telescopic column is in clamped connection to an inner cavity of the fixed column. A clamped connection mechanism is arranged at the top of the left side of the telescopiccolumn, a rotating mechanism is arranged on the right side of the inner cavity of the fixed box, and the moving mechanism is arranged on the left side of the inner cavity of the fixed box. Through cooperation of a motor, a rotating shaft, a first gear and a second gear, the fixed column can be rotated by a user conveniently, and therefore a moving column is rotated through the telescopic column,then a round connecting block and the connecting hole are rotated at the same time, and therefore the user can carry out multi-angle adjusting on the connecting hole conveniently according to the field mounting situation, flexibility of the connecting hole is improved, and meanwhile the boundedness of the connecting hole is reduced.

The invention discloses a movable emergency bridge device for roads and bridges, and belongs to the technical field of roads and bridges. The movable emergency bridge device for roads and bridges comprises a movable box, wherein a plurality of connecting plates are linearly arranged on the front side of a movable block at equal intervals, two limiting cylinders B are symmetrically welded to the middle of one part of the connecting plates, two limiting cylinders C are symmetrically arranged on the front side and the rear side of the outer side of the other part of the connecting plates, limiting plates are arranged on the front sides of the connecting plates, two limiting cylinders D are symmetrically welded to the rear sides of the limiting plates, connecting rods A are symmetrically and rotationally connected to the outer sides of the connecting plates through pin shafts, connecting rods B are rotationally connected to the front sides of the connecting rods A through pin shafts, and the structures are tightly matched, so that the temporary bridge can be automatically unfolded and folded by arranging the connecting rods and the connecting plates, the device can be folded when not in use to reduce space and facilitate transportation, meanwhile, the device can be unfolded when in use to increase the effective use distance, and the device device can meet the requirements of different conditions.

The invention discloses swimming goggles with a myopia lens and astigmatism lens replaceable use mechanism. The swimming goggles comprise a swimming goggle body including two goggle frames which are symmetrically arranged; a dismounting mechanism is fixedly mounted at one end in each goggle frame and comprises a groove, a movable frame, a limiting groove, a limiting block, lens grooves and swimming lenses. According to the invention, with the dismounting mechanism, myopia lenses and astigmatism lenses can be respectively mounted through the lens grooves; under cooperation of the limiting grooves, the limiting blocks and the grooves, the movable frames are limited and fixed, so that the movable frames clamp and fix the myopia lenses and astigmatism lenses, so that the myopia glasses and theastigmatism glasses are prevented from shaking; after dismounting of the limiting blocks, the movable frames are taken out conveniently, so that the myopia glasses and the astigmatism glasses in themounting grooves are convenient to replace; the myopia lenses and the astigmatism lenses are further fixed through the swimming lenses at the two ends, so that water is prevented from entering the lens grooves, and normal use of the myopia glasses and the astigmatism glasses is guaranteed.

The invention belongs to the field of body surface myoelectricity acquisition, and particularly relates to a human body surface wireless transmission myoelectricity acquisition system and a myoelectricity acquisition unit, which comprise a body surface electrode, a plurality of myoelectricity acquisition units, a data processing unit and a display terminal, wherein the myoelectricity acquisition unit is connected with a body surface electrode solid line, the myoelectricity acquisition unit is in wireless connection with the data processing unit through wifi, and the data processing unit is connected with the display terminal through a USB line. The method is convenient in use steps, and does not need to connect many entity lines. And compared with an entity line, the use distance is increased. Data dual backup is performed in the myoelectricity acquisition unit and the data processing unit, original data are stored, and data loss caused by unforeseen circumstances can be avoided. And the acquisition channels can be flexibly selected as required.

The invention discloses a cavel removing device used for a goat. The cavel removing device comprises a processing room and a cavel removing mechanism, wherein two supporting arms, which are oppositely arranged, are separately arranged on two side walls of the processing room; springs are arranged in the supporting arms; clamping arms are arranged on the springs; a supporting table is further arranged on the inner wall of the processing room; a positioning table is detachably connected to the supporting table; the cavel removing mechanism comprises an iron wire, a cavel sleeve and soldering iron; two ends of the iron wire are separately connected with the processing room and the cavel sleeve; a through hole is formed in the top of the cavel sleeve; the soldering iron comprises a soldering iron rod and a soldering iron head; a first through slot is formed in the soldering iron rod; a sandwich layer is arranged between the first through slot and the soldering iron rod; a heating wire connected with a power supply is arranged in the sandwich layer; raised grains are arranged on the top of the soldering iron head; a second through slot is formed in the soldering iron head; and an iron sealing cover is detachably connected to the second through slot. The cavel removing device solves the problem that the cavel removing effect is relatively poor as the goat is not located well and shakes, and also solves the problem that the population position of the goat is reduced after the cravel of the goat is removed.

The invention discloses a binocular vision three-dimensional scanning system. The binocular vision three-dimensional scanning system comprises a scanner and a data processing center. The scanner comprises a first shell and a second shell. The second shell is arranged at the rear end of the first shell and integrally formed with the first shell. A binocular camera is arranged in the first shell. Ananalog-digital conversion module, a data processing module, a data storage module, a wireless transmitting module and a microprocessor are arranged in the second shell. The binocular camera is electrically connected with the analog-digital conversion module. The data processing module is electrically connected with the analog-digital conversion module and the data storage module. The microprocessor is electrically connected with the wireless transmitting module and the data storage module. The data processing center is wirelessly connected to the scanner and constructs three-dimensional images collected by the scanner. According to the binocular vision three-dimensional scanning system, shooting and constructing are carried out at the same time, forming is rapid, the real-time effect is good, the scanner is convenient to carry, a wireless transmitting mode is adopted to exchange information with the data processing center, the use distance and range of the scanner are greatly improved, space is saved, and use is convenient.

A leaky coaxial cable is characterized in that double-row slotted hole groups are arranged on an outer conductor along the axial direction of the cable, the centers of the double-row slotted hole groups coincide with the central axis of the cable, each row of slotted hole group comprises a plurality of slotted hole arrays which are periodically arranged along the axial direction of the outer conductor, and the pitches P of the slotted hole arrays are the same and are selected according to the use frequency; the gain G generated by the double-row slot group meets the requirement, the coupling loss can be reduced, the radiation direction is controlled by adjusting the slot angle alpha, the energy is concentrated in the receiving direction, the effective field intensity is increased, the waste of invalid energy is reduced, the use distance of the cable is increased, and the construction cost is reduced.

The invention belongs to the technical field of power adapters, and discloses an adjustable power adapter with a detachable structure, which comprises an upper cover and a lower cover, two side edges of the upper cover are integrally connected with convex blocks, the convex blocks are provided with through holes, two side edges of the lower cover are provided with grooves corresponding to the convex blocks in position, the bottom of each groove is provided with a spring mounting hole, a first spring is mounted in the spring mounting hole, cylindrical holes are formed in the two side edges of the lower cover, a first sliding groove is formed in the side edge of the groove, a sliding column is slidably matched with the first sliding groove, the sliding column is matched with the through hole in size, a second spring is connected between the sliding column and the first sliding groove, and two coiling mechanisms are mounted on the lower cover. The output ends of the two coiling mechanisms are connected with a power input line and a power output line respectively, the lower cover is provided with a locking mechanism and a plug notch, a plug mechanism is placed in the plug notch, and the lower cover is provided with a clamping mechanism matched with the plug mechanism.

The invention discloses an insulator integration system, which comprises a fiber bragg grating composite insulator, a thermal insulation protection device and a monitoring device, wherein the monitoring device comprises a temperature stress analysis device, an auxiliary measurement device and an integrated control box; the thermal insulation protection device is sheathed out of the integrated control box; a No.1 jumper wire joint protection box, a central control box and a power supply are arranged in the integrated control box; one end of the No.1 jumper wire joint protection box is connectedwith an outlet fiber on the fiber bragg grating composite insulator; and the other end is connected with the temperature stress analysis device through a fiber composite overhead ground wire. The insulator integration system can realize online monitoring, is exquisite, is high in safety and has a good measurement effect.

The present invention provides a BLE (Bluetooth Low Energy) -based position monitoring method and a terminal. The method comprises the steps that: a first terminal obtain a second information packet and a second signal intensity in an assigned time interval, wherein the second information packet comprises state codes and the signal intensity indication value of each terminal in a group; a first information packet is generated according to the second information packet and the second information intensity, wherein the first information packet comprises the state codes and the signal intensity indication value of each terminal in the group; and the first information packet is broadcasted. Based on the current BLE technology, a method capable of multi-terminal loss prevention and position monitoring is provided to allow terminal devices to achieve relay and enlarge the usage distance and the application range of the BLE terminal.