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30results about How to "Quick plug connection" patented technology

Compact flangeless waveguide connection structure and design method

The invention discloses a compact flangeless waveguide connection structure. A positive connection portion comprises a first standard waveguide, a first impedance conversion section, a first non-standard waveguide section and a periodic metal convex body array. The first impedance conversion section is located between the first standard waveguide section and the first non-standard waveguide section, the periodic metal convex body array is arranged on a periphery of an outer wall of the first non-standard waveguide section, and a plurality of metal convex bodies are respectively and uniformly arranged according to a periodic layout rule. A negative connection portion comprises a second standard waveguide, a second impedance conversion section and an expanded cavity structure. The second impedance conversion section is located between the second standard waveguide and the expanded cavity structure, and the expanded cavity structure is arranged at a tail end of the second impedance conversion section. One end, with the periodic metal convex body array, of the positive connection portion is inserted into the expanded cavity structure of the negative connecting portion to form a whole compact flangeless waveguide connecting structure. A size is greatly reduced, a miniaturization design and flexible layout are better facilitated, and more convenient and flexible assembling can be achieved through a plug-pull design.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

400V multifunctional bypass switch cabinet and using method thereof

The invention discloses a 400V multifunctional bypass switch cabinet, which is characterized in that a voltmeter is installed on an upper panel, a voltage value can be read from the front of a mechanical instrument, a wiring terminal is arranged on the back of the mechanical instrument, and the mechanical instrument can measure the three-phase voltage conditions at the two ends of a load switch; athree-phase ampere meter is installed on the upper panel; a phasing tester is installed on the upper panel; a phasing indicator lamp is installed on the upper panel; a multifunctional metering display meter is installed on a lower panel; and real-time and historical power and electric quantity of a bypass can be checked on the front. According to the using method of the 400V multifunctional bypass switch cabinet, one end of a low-voltage flexible cable is inserted into a corresponding wire outlet end cable quick plugging interface of the device, and after the phase sequence is all correct, anoperator rotates a switch operating handle in the device from a switching-off position to a switching-on position. The 400V multifunctional bypass switch cabinet has the advantages that the operatoris isolated from an electrical loop, the personal safety is guaranteed, the bypass phase sequence is conveniently and quickly checked and adjusted, the triple phase sequence checking and protecting functions are achieved, and the operation efficiency and safety are improved.
Owner:YINGKOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1

Electronic teaching test box

The invention discloses an electronic teaching test box which comprises a housing. One inner side of the housing is provided with a transformer which is fixedly arranged. A plurality of heat radiatingmechanisms are fixedly arranged at one side, which is next to the transformer, of the housing. The heat radiating mechanism comprises a motor, blades and a heat radiating net. A motor is fixedly arranged through a mounting seat on one side, which is next to the housing, of the heat radiating mechanism. A blade shaft is fixedly arranged at the output end of the motor. The heat radiating mechanismis movably mounted at one side, which is far from the motor, of the blade. A buffering mechanism is movably mounted at one side, which is far from the heat radiating mechanism, of the housing. The buffering mechanism comprises a buffering plate, a first spring and a fixed plate. The first spring is movably mounted at one side, which is next to the housing, of the buffering mechanism. The electronic teaching test box has advantages of realizing experiment teaching to the students, facilitating quick cross-slubbing connection, keeping a stable working state of an experiment box, and further improving experiment effect. The electronic teaching test box has advantages of simple structure, high convenience in use, and high use effect.
Owner:黄永怀

Improved supporting frame for stand column top wedge insertion and extraction quick release mechanism

The invention relates to an improved supporting frame for a stand column top wedge insertion and extraction quick release mechanism. The supporting frame comprises a base, a stand column and a screen connecting assembly. The screen connecting assembly comprises a horizontal shaft, a fixing portion and a wedge-shaped stretching portion formed by integrally-formed metal, wherein the stand column comprises a wedge-shaped slotted hole integrally formed by metal; the supporting frame is characterized in that a plastic shock insulator made of plastics is fixedly arranged on the outer surface of the wedge-shaped stretching portion or the inner surface of the wedge-shaped slotted hole, the surfaces, achieving cooperation during insertion and extraction, of the two wedge-shaped structures are matched partially or wholly through the plastic shock insulator, so that the characteristic that the plastic shock insulator can more easily generate micro-deformation when being stressed is utilized, insertion and extraction connection is more smooth, more free, more convenient and more rapid, meanwhile, matching is tight, no looseness is caused, more reliability is achieved, and particularly combination can still be stable after repeated usage; meanwhile, the insertion and extraction structure can be used as a spraying outer part, particularly, the machining precision is greatly lowered, machining and manufacturing are easy, and the production cost is lower.
Owner:TAIZHOU STRONKIN ELECTRONICS

400-volt bypass switch, nuclear phase current and voltage monitoring device and using method

The invention discloses a 400-volt bypass switch and a nuclear phase current and voltage monitoring device. The device comprises a multifunctional bypass switch cabinet which is composed of a cabinetbody structure of an iron plate piece, connectors of a low-voltage flexible cable which are installed and fixed at the two ends of the low-voltage flexible cable and can be quickly connected to cylinders such as screws in a pluggable mode, and a voltmeter, a three-phase ammeter and a phasing tester which are arranged on an upper panel. The invention discloses the 400-volt bypass switch and a usingmethod of the nuclear phase current and voltage monitoring device, the other ends of four low-voltage flexible cables on an incoming line side are inserted into corresponding incoming line end cablequick plugging interfaces on the multifunctional bypass switch cabinet in the complete device; after the bypass normally operates, whether the bypass can depend on shunting of the line to be overhauled or not is judged through the reading of the three-phase ammeter in the multifunctional bypass switch cabinet in the complete device. The method has the advantages that the personal safety is guaranteed, the bypass phase sequence can be conveniently and quickly checked and adjusted, and the operation efficiency and safety are improved.
Owner:YINGKOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1

Base station antenna for mobile communication network engineering

The invention discloses a base station antenna for mobile communication network engineering. The base station antenna comprises a group of antenna bodies. The base station antenna further comprises agroup of communication tower brackets. The antenna also comprises a group of communication antenna bearing units. During implementation, the communication antenna bearing unit comprises a bearing wallplate, and a hoop is arranged on the back surface of the bearing wall plate. An upper wall-mounted end part and a lower wall-mounted end part are also fixed on the bearing wall plate. In the implementation process, the wall hanging end is provided with an inserting groove, and the side face of the inserting groove is provided with an upward opening protrusion. The back side of the antenna body isarranged in the corresponding slot through a clamping strip. During implementation, the communication antenna bearing unit is fixed on a communication tower support through a hoop. The base station antenna has the following advantages; the base station antenna has the advantages of being simple in overall structure, convenient to assemble and disassemble, stable in overall structure and the like;(2) during assembly, the back side of the antenna body is arranged in the corresponding slot through the clamping strip, the implementation is simple, the operation is convenient, and the insertion connection can be quickly realized; and (3) the whole base station antenna has better stability and guidance quality.
Owner:重庆桦秀科技有限公司

Assembly bracket for computer assembly

The invention discloses an assembling bracket for assembling a computer, and relates to the field of assembling brackets for assembling the computer, the assembling bracket comprises a bracket and a host shell, a conventional computer case is replaced by the host shell, the computer case is directly clamped in a hemispheroid groove in the surface of the bracket, and then the bracket and the host shell can be quickly spliced. The host shell and the display screen are also connected in a clamping manner and can be quickly connected in a plugging manner, a lower power connection end for connecting a power line is arranged at the raised bottom of the bracket, so that a connecting wire is positioned at the bottom of the bracket, and the bracket can be used as a computer desktop when supporting legs are mounted on reserved threaded holes in the lower surface of the bracket, so that the assembly and the use are convenient; due to the arrangement of the bracket and the host shell, connecting wires between the bracket and the host shell are omitted, cable materials are saved, the host shell is arranged on the surface of the bracket to replace a support at the bottom of the display screen, materials are saved, the host shell can rotate in the hemispherical groove, and the angle of the display screen can be adjusted conveniently.
Owner:SHAANXI UNIV OF CHINESE MEDICINE

Negative pressure type flexible exoskeleton system for assisting extravehicular spacesuit

PendingCN113733048AHigh control precisionHigh system security and maintainabilityProgramme-controlled manipulatorSpace suitsEngineeringRight elbow
The invention discloses a negative pressure type flexible exoskeleton system for assisting an extravehicular spacesuit, and belongs to the technical field of robots. The system comprises an exoskeleton pneumatic control system, a plurality of inertial sensors, a plurality of negative pressure type flexible drivers and a plurality of flexible bending sensors; an air source in the exoskeleton control system provides pneumatic energy for the exoskeleton system, a water-separating air filter cleans compressed air, normal work of a pneumatic execution element is guaranteed, a pressure reducing valve and a pressure gauge carry out pressure stabilizing control on the output pressure of the air source, a two-position two-way valve serves as an air source switch valve, and three-position three-way valves, proportional pressure valves and the flexible drivers form four pneumatic control loops of left and right elbow and knee joints of the exoskeleton system. The proportional pressure valves respectively control the flow and the pressure input into the negative pressure type flexible drivers. The negative pressure type flexible exoskeleton system used for assisting the extravehicular spacesuit is arranged in the extravehicular spacesuit to achieve built-in flexible driving.
Owner:XI AN JIAOTONG UNIV

High-temperature circuit breaker for electric automobile power detection

The invention relates to the technical field of high-temperature circuit breakers and particularly relates to a high-temperature circuit breaker for electric vehicle power detection. The high-temperature circuit breaker comprises a circuit breaker body, a dust removal mechanism, an extrusion mechanism, a positioning mechanism, an abutting mechanism and a fixing mechanism. Under the action of the fixing mechanism, the circuit breaker body can be conveniently and quickly connected with equipment, subsequent disassembly and replacement are further facilitated, meanwhile, heat dissipation and dustremoval of the circuit breaker body are facilitated under the action of the dust removal mechanism, the heat dissipation effect is better, under the action of the extrusion mechanism, an external electric wire can be conveniently and quickly connected with the circuit breaker body, meanwhile, the situation of wire falling caused by sliding damage or shaking is effectively prevented, the wire canbe clamped more firmly under the action of the abutting mechanism, the wire and the breaker body can be conveniently and rapidly inserted and connected under the action of the positioning mechanism, loosening and falling off of the wire during connection are prevented, meanwhile, the wire is protected, and wire abrasion is prevented.
Owner:陈金凤

Internal waterproof microswitch

The invention discloses an internal waterproof microswitch, and the microswitch comprises an elastic piece, a terminal, an upper terminal and a base; an inner cavity is formed in the top of the base, the terminal is plastic-coated in the inner cavity of the base, the upper surface of the terminal is flush with the bottom surface of the inner cavity, a front clamping piece and a rear clamping piece are arranged in the center of the terminal, a first contact hole is formed in the contact position of the terminal, a terminal contact is riveted in the contact hole, the terminal is also provided with a middle terminal, the middle terminal is provided with a plugging hole, a terminal tip part and a plugging clip, the upper terminal is provided with a pin and a third contact hole, and the pin is movably embedded into the plugging hole; a front bayonet, a rear bayonet, a second contact hole and an elastic tongue piece are arranged on the elastic piece, and the front bayonet and the rear bayonet correspond to the front clamping piece and the rear clamping piece. The service life is up to more than one million times, small spacing conduction is achieved, the working stroke is up to more than 1 mm, the size is small, installation and use are convenient, the minimum installation height ranges from 3.5 mm to 7.5 mm, and the operating force of a product can be increased to more than 5N through a double-generation operating force device.
Owner:广东丰实卫奇电子科技有限公司

A compact flangeless waveguide connection structure and design method

The invention discloses a compact flangeless waveguide connection structure. The male connection part includes a first standard waveguide, a first impedance transformation section, a first non-standard waveguide section and a periodic metal convex array, wherein the first impedance transformation section is located at Between the first standard waveguide and the first non-standard waveguide section, a periodic array of metal protrusions is arranged around the outer wall of the first non-standard waveguide section, and several metal protrusions are evenly arranged in a periodic layout rule; the female connection part includes the first non-standard waveguide section. Two standard waveguides, a second impedance transformation section and an enlarged cavity structure, the second impedance transformation section is located between the second standard waveguide and the enlarged cavity structure, and the enlarged cavity structure is arranged at the end of the second impedance transformation section; the male connection part One end with a periodic metal convex array is inserted into the enlarged cavity structure of the female connection part to form a compact flangeless waveguide connection structure as a whole. The volume of the invention is greatly reduced, which is more conducive to miniaturization design and flexible layout, and the plug-in design can realize more convenient and flexible assembly.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

The support frame of the improved wedge-shaped plug-in and quick-release mechanism at the top of the column

The invention relates to an improved supporting frame for a stand column top wedge insertion and extraction quick release mechanism. The supporting frame comprises a base, a stand column and a screen connecting assembly. The screen connecting assembly comprises a horizontal shaft, a fixing portion and a wedge-shaped stretching portion formed by integrally-formed metal, wherein the stand column comprises a wedge-shaped slotted hole integrally formed by metal; the supporting frame is characterized in that a plastic shock insulator made of plastics is fixedly arranged on the outer surface of the wedge-shaped stretching portion or the inner surface of the wedge-shaped slotted hole, the surfaces, achieving cooperation during insertion and extraction, of the two wedge-shaped structures are matched partially or wholly through the plastic shock insulator, so that the characteristic that the plastic shock insulator can more easily generate micro-deformation when being stressed is utilized, insertion and extraction connection is more smooth, more free, more convenient and more rapid, meanwhile, matching is tight, no looseness is caused, more reliability is achieved, and particularly combination can still be stable after repeated usage; meanwhile, the insertion and extraction structure can be used as a spraying outer part, particularly, the machining precision is greatly lowered, machining and manufacturing are easy, and the production cost is lower.
Owner:TAIZHOU STRONKIN ELECTRONICS

Fire service life safety belt of positive pressure respirator and using method of fire service life safety belt

The invention relates to the technical field of positive pressure respirators, and particularly discloses a fire service life safety belt of a positive pressure respirator and a using method of the fire service life safety belt. Waist clamp inserting buckles are correspondingly connected to the two sides of a waist cushion and used for being matched with waist clamps correspondingly so as to achieve detachable connecting, a hidden buckle groove is formed in the lower side of each inserting buckle, a back plate is used for mounting the positive pressure respirator, and the waist clamps are correspondingly connected to the two sides of the back plate; and an opening communicating with the waist clamp inserting buckles for being matched with a clamping groove is formed in the end, away from the back plate, of each waist clamp, sliding grooves are formed in the two sides, matched with the clamping grooves correspondingly, of the waist clamp inserting buckles, and a moving shaft is connected into each sliding groove in a matched mode and used for being matched with each hidden groove. Compared with the prior art, the problem that a positive pressure respirator belt cannot meet the requirements of a fire service life safety belt is solved, the fire service life safety belt can be connected with the positive pressure respirator waist clamps in a quick inserted and pulled mode, the positive pressure respirator equipment with the fire service life safety belt function is obtained accordingly, and the fire service life safety belt is simple in structure, safe, reliable, safer to use,fast and convenient to operate and high in applicability.
Owner:SHANGHAI BAOYA SAFETY EQUIP

Novel power-assisted electric bicycle frame

The invention relates to a novel power-assisted electric bicycle frame. A middle motor hanging rack is arranged at the lower end of a seat pipe, and the rear end of an inclined beam is fixedly weldedto the front part of the middle motor hanging rack; the middle part of the inclined beam is provided with a battery groove which does not transversely penetrate; a front fixing seat is arranged at thefront part of the bottom of the battery groove, a rear fixing seat is arranged at the rear part of the bottom of the battery groove; a head lock is installed on the front fixing seat, a tail base isinstalled on the rear fixing seat; a battery is installed in the battery groove, the tail part of the battery is connected with the tail base, the head part of the battery is connected with the head lock; the battery comprises an upper box body and a lower box body, an electric core and a circuit board are arranged between the upper box body and the lower box body, a charging terminal and a protective cover used for covering the charging terminal are arranged on the side surface of the tail part of the lower box body, and an exposed wiring terminal is also arranged on the tail part of the lower box body; fixed terminals are arranged at corresponding positions in the tail base. The novel power-assisted electric bicycle frame has the advantages of being simple in structure, capability of tightly combining the battery and the frame and effectively protecting the battery.
Owner:TIANJIN GOLDEN WHEEL XINDE BICYCLE IND
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