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

The invention discloses a non-flange waveguide connecting structure, which comprises a male connecting part and a female connecting part, and is characterized in that the male connecting part comprises a first waveguide and a periodic metal convex body array, wherein the periodic metal convex body array is arranged on the peripheral surface of the outer wall of the tail end of the first waveguide,and a plurality of metal convex bodies are respectively and uniformly arranged according to a periodic layout rule; the female connecting part comprises a second waveguide and an expanded cavity structure; the expanded cavity structure is arranged at the tail end of the second waveguide, and the end, provided with the periodic metal convex body array, of the male connecting part is inserted intothe expanded cavity structure of the female connecting part to form the whole non-flange waveguide connecting structure. Compared with a traditional waveguide flange, the non-flange waveguide connection structure provided by the invention has the advantages that the size is greatly reduced, the structure layout is more facilitated, and more convenient and flexible assembly can be realized throughthe pluggable design.

The invention relates to a junction box and a luminaire adopting the junction box. The junction box comprises an insulating shell and a wire holder arranged inside the insulating shell, wherein the wire holder comprises an elastic piece body made from a conducting material and a connector, the connector is connected with a power wire; the elastic piece body comprises a clamping part used for clamping a plug pole piece and a fixing part connected with the connector; face-to-face contact is employed between the clamping part and the plug pole piece, and an anti-falling piece for preventing the plug pole piece from falling off is arranged on the clamping part. Since face-to-face contact is employed between the clamping part and the plug pole piece, the electrical conductivity of the wire holder is improved. After the plugging manner is employed, quick plugging and connection of a plug can be realized and a special tool is not needed. In addition, as the anti-falling piece is arranged on the clamping part, the plug pole piece is unlikely to fall off, and the junction box is safe and reliable in connection and unlikely to fail.

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.

The invention relates to the technical field of gas pressure tanks, and discloses a diaphragm gas pressure tank with a gas compensation device. The diaphragm gas pressure tank comprises a tank body and a gas supplement valve, and also comprises an external gas supplement unit connected with the gas supplement valve; the gas supplement valve comprises a gas supplement tube and a valve core; the external gas supplement unit comprises a gas supplement cylinder and a gas supplement bag that are in butt-joint with the gas supplement tube; the gas supplement bag is arranged in the gas supplement cylinder, and is filled with gas; and when gas pressure in the tank body is lower than the standard gas pressure, the valve core is opened, and gas in the gas supplement air enters the tank body throughthe valve core. The external gas supplement unit is in butt-joint with the gas supplement valve to supplement gas in the tank body automatically to stabilize gas pressure..

The invention discloses a plug type circuit sealing device, which comprises a mobile sealing body arranged on a drill collar matrix in a pluggable way. The mobile sealing body further comprises a sealing base and an arc-shaped sealing top cover, wherein the sealing base is provided with an accommodating chamber used for accommodating a circuit board, the arc-shaped sealing top cover is buckled on the sealing base, the top end of the arc-shaped sealing top cover forms an arc-shaped surface which is matched with the surface of the drill collar matrix; the surface of the sealing base, corresponding to the arc-shaped sealing top cover, is provided with a sealing groove, a sealing ring is arranged in the sealing groove; and the arc-shaped sealing top cover is also provided with a plug which is matched with the internal structure of the drill collar matrix, and the plug is electrically connected with the circuit board through a wire. The invention realizes the rapid plug connection, greatly facilitates the installation and follow-up maintenance of the equipment, and simultaneously, ensures that the circuit board can be well sealed to be prevented from being damaged by the fluid through the drill collar.

The invention relates to a bed computer stereo desk, which has the functions of both bed computer desk and stereo. The bed computer stereo desk comprises a bed computer desk of which the back face of the desktop is contacted with a resonant surface of a resonant speaker vibrator and the resonant speaker vibrator is pushed by a power amplifier to drive the desktop of the bed computer desk to resonate so as to produce sound. The bed computer stereo desk has the advantages that: firstly, the desk sets a precedent for the usage of the bed computer stereo desk as the resonant speaker vibrator, so that the desktop of the bed computer desk has the functions of writing, supporting the computer and playing sound; and secondly, the stereo is convenient to store, and can be conveniently and quickly connected by plugging so as to realize both learning and entertainment.

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.

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.

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.

The invention discloses a connector terminal suitable for multi-directions. The connector terminal is characterized by comprising a terminal body, guide modules and multiple groups of jack modules; the guide modules are arranged at the two ends of the terminal body; each jack module group comprises a socket end and an auxiliary guide hole in the outer side of the socket end separately; and the side walls of the auxiliary guide holes, and one surfaces, in contact with the guide holes, of the guide modules are all saw-toothed. The connector terminal has the beneficial effects that inserting connection can be performed rapidly through the guide modules; the auxiliary guide holes are used for assisting the positioning and inserting of each connecting wire, and the auxiliary guide holes also can change the wiring direction to enable the connecting wire to be protected in bending parts, so that the durability of the wiring terminal is greatly improved; and in addition, the positioning of the auxiliary positioning holes is maintained by friction force generated among the saw-toothed surfaces of the auxiliary guide holes.

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.

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.

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.

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.

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.

The invention relates to a junction box and a luminaire adopting the junction box. The junction box comprises an insulating shell and a wire holder arranged inside the insulating shell, wherein the wire holder comprises an elastic piece body made from a conducting material and a connector, the connector is connected with a power wire; the elastic piece body comprises a clamping part used for clamping a plug pole piece and a fixing part connected with the connector; face-to-face contact is employed between the clamping part and the plug pole piece, and an anti-falling piece for preventing the plug pole piece from falling off is arranged on the clamping part. Since face-to-face contact is employed between the clamping part and the plug pole piece, the electrical conductivity of the wire holder is improved. After the plugging manner is employed, quick plugging and connection of a plug can be realized and a special tool is not needed. In addition, as the anti-falling piece is arranged on the clamping part, the plug pole piece is unlikely to fall off, and the junction box is safe and reliable in connection and unlikely to fail.

The invention provides a multi-group drag test platform used by a small motor, comprising: a base, positioning pins and a pressing plate; the device is provided with three groups of measurement installation groups; base; the top right side of the base is slidably connected with a set of DC compound motors; the top left side of the base is slidably connected with a set of tachogenerators; the left hinge of the DC compound motor is connected with a set The compression link; the compression link has a set of rightmost middle hinges of the compression support link; the tachogenerator shaft and the motor shaft to be tested, the The rotating shaft of the motor and the rotating shaft of the DC compound excitation motor are plug-in connections. The device has a simple structure and is easy to use, and can quickly realize the fast plug-in connection between the tachometer generator, the DC compound excitation motor and the motor to be tested and the fast installation of the motor to be tested, with fast installation speed, good installation effect and simple operation.

The invention belongs to the technical field of joint structures, and particularly discloses a self-adaptive flow regulation quick connection joint structure, which is characterized in that a plug comprises a plug shell, a sealing plunger, a base, a variable drift diameter plug valve core, an adjusting spring and an external thread sleeve; the socket comprises a socket shell, a socket pushing spring, a socket valve element, a sealing sleeve, an adjusting piece and a flow blocking base. Rapid connection of the system can be achieved, sealing and liquid leakage prevention are guaranteed in the connection process and after connection, and use is more convenient; through the design of the spring, the variable-drift-diameter valve element and the flow blocking base, the connector has the flow resistance function of self-adaptive adjustment of the connector after connection, and therefore automatic adjustment of flow is achieved.

The invention provides a connecting device, a connector with the connecting device and heat exchange equipment. The connecting device comprises a plurality of first joints, a shell, a button and a clamping assembly; each of the plurality of first joints, the button and the clamping assembly is at least partially accommodated in the shell, the button is provided with a pressing part exposed out of the shell, and the first joints are used for being connected with second joints. The clamping assembly is configured to be switched between a to-be-clamped state and a clamped state so as to adjust the state between the first joints and the second joints. Firstly, the connecting device is simple in overall structure and saves space; secondly, the first connector and the second connector are connected and clamped through the button and the clamping assembly, rapid plugging connection can be achieved, and operation is convenient; thirdly, a plurality of connectors such as a plurality of male connectors and a plurality of female connectors are clamped by utilizing a single set of clamping assembly, so that the manufacturing cost is further effectively reduced, more convenience is brought to a user for use, and the operation is faster.

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.

The invention discloses a connector terminal suitable for multi-direction connection. The connector terminal is characterized by comprising a terminal body, guide modules and multiple groups of jack modules; the guide modules are arranged at the two ends of the terminal body; each jack module group comprises a socket end and an auxiliary guide hole in the outer side of the socket end separately; and the side walls of the auxiliary guide holes, and one surfaces, in contact with the guide holes, of the guide modules are all saw-toothed. The connector terminal has the beneficial effects that inserting connection can be performed rapidly through the guide modules; the auxiliary guide holes are used for assisting the positioning and inserting of each connecting wire, and the auxiliary guide holes also can change the wiring direction to enable the connecting wire to be protected in bending parts, so that the durability of the wiring terminal is greatly improved; and in addition, the positioning of the auxiliary positioning holes is maintained by the friction force generated among the saw-toothed surfaces of the auxiliary guide holes.

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.

An electric motor-driven kitchen appliance includes an electric motor and a gear stage. The electric motor includes a motor housing and the gear stage includes a gear case. The motor housing and gear stage are connected to each other by a bayonet lock. The electric motor and the gear stage are provided with the respective bayonet lock parts designed for the kitchen appliance.

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.