40results about How to "Easy to disassemble repeatedly" patented technology

The invention discloses an electronic device and an engaging structure thereof. The electronic device comprises a first casing and a second casing. The first casing comprises a plate portion and a plurality of hooks. Each hook is located on the plate portion. The second casing comprises a first side portion, a second side portion, an engaging portion, a first rib and a second rib. The engaging portion is between the first and the second side portions and comprises a plurality of recesses. Each recess is engaged with one of the hooks and has a front edge. A gap is between one end of the hook and the front edge of the recess. The first and second ribs are respectively located on the first and the second side portions. The plate portion is disposed on the first and second ribs. The hook can be detached from the recess by the gap.

The invention relates to the technical field of industrial robot training, in particular to an industrial robot training system with a dismounting device and a training method. The training system comprises an industrial robot body, a control cabinet, a demonstrator and a detachable shaft system; and the detachable shaft system includes a single-shaft or multi-shaft structure corresponding to the robot body. The training method comprises equipment acquaintance, equipment dismounting, equipment maintenance, teaching programming of an industrial robot and realization of industrial robot functions. In the industrial robot training system with the dismounting device and the training method, a corresponding single-shaft or multi-shaft dismounting system is provided according to the industrial robot system, so that structures in the industrial robot body can be dominated, the learning of a mechanical structure and a transmission mechanism of the industrial robot is convenient, and the adjustment skill training of the industrial robot is convenient; and the training system is convenient in repeated dismounting and reduction of the investment cost, and reduces the assembly size precision of the dismounting shaft system.

The invention discloses a fabricated energy-saving building, and relates to the field of energy-saving board rooms. The fabricated energy-saving building comprises wall body plate units, roof plate units and a locking mechanism. The wall body plate units close to a roof are fixedly connected with the roof plate units by steel angle fixing pieces. The locking mechanism comprises mounting grooves respectively formed in vertical faces of the adjacent wall body plate units and roof plate units, and female hook bodies and male hook bodies in the mounting grooves. Flow guide plates are arranged at the connecting seams between the adjacent roof plate units. Each flow guide plate comprises two inclined plates with the planes being manually obliquely. The inclined plates are fist inclined plates and second inclined plates. The inclination angle of the first inclined plates is the same as that of the roof plate units. The ends of the second inclined plates are inserted below the first inclined plates. The fabricated energy-saving building has excellent heat preservation effect, has good water resisting and fire resisting performance, has a certain of shock resisting ability, and is suitablefor post-disaster disaster relief housing.

The invention discloses an electromagnetic wave mask which at least comprises a shielding cover, an insulating layer and a conductive adhesive, wherein the protrudent cover edge of the shielding cover is hermetically pasted on a printed circuit board with the conductive adhesive; and the insulating layer is arranged between the shielding cover and the printed circuit board to enable the shielding cover not to be contacted with the printed circuit board to provide electromagnetic interference (EMI) for shielding the printed circuit board. The design of the electromagnetic wave mask can decrease the height combined with the circuit board by passing the protrudent cover edge of the shielding cover on the printed circuit board with the conductive adhesive.

A double-nut-screw type fixing connector based on stretching wedge blocks comprises a compression bolt, a compression nut, an external bracing bolt and at least one holding pin. The holding pins are movably arranged at the tail end of the compression bolt. The compression nut is connected to the compression bolt in a threaded mode. The external bracing bolt is operationally arranged in the compression bolt. When the double-nut-screw type fixing connector based on the stretching wedge blocks is not used, all holding pins do not protrude from the surface of the compression bolt; and when the double-nut-screw type fixing connector based on the stretching wedge blocks is used, the external bracing bolt outwards ejects the holding pins in the compression bolt so as to make the holding pins protrude from the surface of the compression bolt, and thus two connecting pieces are connected.

The invention provides an undercarriage aerodynamic load test device and a design method thereof. The undercarriage aerodynamic load test device comprises a mounting fixture and a loading device. An applying point is arranged on the loading device, and a loading point is arranged on the mounting fixture; in a static state, the loading point corresponds to positions of a central point of an undercarriage wheel shaft on lateral and vertical projection planes; and under the driving of the applying point, the loading point can move laterally, in a heading direction and in a vertical direction, anda displacement track of the loading point is matched with the displacement track of the undercarriage. Compared with the prior art, the undercarriage aerodynamic load test device provided by the invention has advantages that the retraction and extension of the undercarriage under the influence of an aerodynamic load are truly simulated; and the structure is novel, reliability is high, and repeated dismounting is convenient.

The invention discloses a printed circuit board (PCB). The printed circuit board comprises a PCB mother board and is characterized in that a flexible printed circuit (FPC) daughter board is arranged on the PCB mother board, the FPC daughter board and the PCB mother board are in contact with corresponding contact circuits through conductive bulges so that a conductive path is formed between the FPC daughter board and the PCB mother board, a hard thin sheet is fixedly arranged on the back surface of the side where the conductive bulges are located, the protruding heights of the conductive bulges are 30-300 micrometers, and the diameters of the conductive bulges are phi 50-800 micrometers. In the PCB, the FPC daughter board and the PCB mother board can be conveniently and rapidly disassembled repeatedly, the PCB is suitable for mass production, and the production cost and the subsequent maintenance cost are favorably reduced; and moreover, the wiring area of the PCB can be fully utilized, the light and thin design is promoted, and the PCB conforms to a scientific trend.

The invention discloses an omnibearing leading-out terminal and a leading-out structure of a distribution transformer. The terminal is provided with an insulated mounting seat, a conducting core, a locking nut, a contact terminal, a connecting electrode, a cable connecting mechanism and an insulated external member; the terminal is arranged on an oil tank cover plate of the distribution transformer, when the locking nut is only partially engaged with the cylindrical upper end part of the conducting core, the contact terminal and the connecting electrode positioned on the outside of an oil tank can freely rotate relative to the oil tank cover plate, an installation interface of the connecting electrode can be coincident with the extension direction of an external cable on the site of the distribution transformer, and the external cable does not need to be bent when connected onto the connecting electrode through the cable connecting mechanism, so that the influence of contact heating caused by installation stress is reduced. The direction of connecting the external cable can be adjusted, the terminal has the advantages of convenient mounting, high universality and convenient wiring, the using requirement of product installation can be met to the maximum extent, and the using amount of cables can be saved.

The invention discloses a quick disassembly and assembly lane slab for civil air defense engineering. The quick disassembly and assembly lane slab comprises a first slab block group, a second slab block group and a third slab block group which are sequentially spliced from front to back, wherein the first slab block group is sequentially provided with a plurality of first main slab blocks and a first end slab block from left to right; the second slab block group is sequentially provided with a plurality of second main slab blocks and a second end slab block from left to right; the third slab block group is sequentially provided with a plurality of third main slab blocks and a third end slab block from left to right; and the left ends of the first main slab blocks, the second main slab blocks, the third main slab blocks, the first end slab block, the second end slab block and the third end slab block are all provided with first mounting holes. The quick disassembly and assembly lane slab for civil air defense engineering can be quickly disassembled and transported, and is high in strength, safe and reliable in use and convenient to disassemble and assemble. The quick disassembly andassembly lane slab for civil air defense engineering solves the problem that an existing lane slab is complex to disassemble and assemble and can not satisfy the requirements for quick disassembly and transportation.

The invention discloses a prefabricated frame steel group isolation type container house structure, and particularly relates to the field of prefabricated container board house buildings. According tothe prefabricated frame steel group isolation type container house structure, angle steel columns and angle steel beams are connected to an upper-layer container house frame plate and a lower-layer container house frame plate through connecting corner fittings, an interlayer frame is arranged at the position, along the edges of the angle steel columns, of the lower-layer container house frame plate, a walking plate is laid on the upper side of the interlayer frame, corrugated steel plates are arranged on three sides of a container house wall part, outer web parts of the corrugated steel plates are connected to the angle steel beams through bolts, a steel fence is arranged on one side of a container house wall and is connected to the angle steel beams through bolts, wall connecting parts are arranged at the left end and the right end of a light thermal insulation wallboard, and inner web parts of the corrugated steel plates are connected to the wall connecting parts. The prefabricatedframe steel group isolation type container house structure has the advantages that complete prefabricated construction is realized, all on-site connection is realized through the bolts, welding spotsare avoided, the quality problem possibly caused by on-site welding can be solved, the machining speed is high, in addition, the precision is high, the installation efficiency can be greatly improved,transportation is convenient, repeated disassembly and assembly are facilitated, environmental protection and energy conservation are better realized, and the labor productivity is improved.

The invention relates to the technical field of water level sensors, in particular to a novel water level sensor on an expansion water tank used for an automobile. The novel water level sensor comprises a sensor body, wherein the sensor body is L-shaped; clamping claws are arranged on the two sides of the end parts of the transverse part of the sensor body; a patch plug is arranged at the end partof the vertical part of the sensor body; wire harnesses are arranged in the vertical part of the sensor body; the wire harnesses are connected between the vertical part of the sensor body and the patch plug; the clamping claws and a clamping slot of the expansion water tank are connected, assembled and fixed externally in a clamping manner; the expansion water tank comprises an upper tank body and a lower tank body; a pressure relief opening is formed in one side of the upper tank body; a liquid feeding hole is formed in the front end of one side of the pressure relief opening; a water supplementing hole is formed in the upper tank body on the opposite side of the pressure relief opening; a degassing opening is formed in one side of the water supplementing hole; and the clamping slot is formed in one side of the degassing opening. According to the technical scheme, the novel water level sensor has the following benefits: the clamping slot meets the external clamping connection type structure of the sensor and is not in contact with antifreezing solution to prevent the antifreezing solution from leakage; and the patch plug facilitates switching of different patch plugs.

The invention relates to a rotor shaft end locking device and method. The rotor shaft end locking device comprises a positioning shaft sleeve, a fixing shaft sleeve and a locking shaft sleeve, wherein the front end of the fixing shaft sleeve is fixed on a supporting seat; the locking shaft sleeve and the positioning shaft sleeve are arranged in the fixing shaft sleeve in a sleeving manner; the locking shaft sleeve is arranged at the front part, the positioning shaft sleeve is arranged at the rear part, and the front end of the locking shaft sleeve extends from the front end of the fixing shaft sleeve; a shaft hole of the fixing shaft sleeve is an eccentric hole, a shaft hole of the locking shaft sleeve is also an eccentric hole, and the eccentric distance of the shaft hole of the fixing shaft sleeve is the same as that of the shaft hole of the locking shaft sleeve, and eccentric directions are opposite. The locking method comprises the following steps of fixing the front end of the fixing shaft sleeve to the supporting seat; sequentially mounting the locking shaft sleeve and the positioning shaft sleeve in the shaft hole of the fixing shaft sleeve in a sleeving manner; enabling the front end of the rotor shaft allowed to be magnetized to extent into the shaft hole of the locking shaft sleeve and the shaft hole of the positioning shaft sleeve; and rotating the locking shaft sleeve so that the rotor shaft is locked and is no longer flexible. According to the rotor shaft end locking device disclosed by the invention, damage to the surface of the rotor shaft is avoided, and the rotor shaft end locking device is convenient to disassemble and assembly, and firm to lock, and the efficiency is improved.

The invention discloses a main wheel turning ground control torque measuring device and method. The device comprises a supporting base on which a torque sensor is vertically installed. A ground simulation platform is horizontally installed on the top of the supporting base through a slewing bearing. The torque sensor is connected with the ground simulation platform through a torque pin. The supporting base is fixedly connected with the inner ring of the slewing bearing, and the ground simulation platform is fixedly connected with the outer ring of the slewing bearing, so that the ground simulation platform can slew relative to the supporting base. The torque sensor is prevented from being influenced by a vertical load, and moreover, the torsional moment under the condition of coupling of various influence factors such as different load distributions, tire pressures and tire-ground relative friction forces can be directly and accurately measured by the torque sensor, the limitation of torque measurement of the force sensor is solved, and the influence of additional factors such as transmission and friction loss on the test result is reduced.

The invention relates to a convenient-to-disassemble end supporting mechanism for a motor test system. The convenient-to-disassemble end supporting mechanism for the motor test system mainly comprises a supporting block and a pressing block, and is simple in structure, convenient to disassemble and assemble and high in repeated test precision. The supporting block can be installed by calibrating the coaxiality of the supporting block and each component of the system at one time through a coaxiality calibrator. The pressing block limits the tail end of a motor shaft in the radial direction and the circumferential direction only through fastening screws, repeated disassembly is very convenient, and the repeated testing precision of a tested system cannot be affected. According to the method, a coaxiality calibrator does not need to be used for repeatedly calibrating and detecting the coaxiality of a to-be-tested motor and each part of the test system, so that the requirement on the operation technical level of test personnel is greatly reduced, and the test working efficiency can be greatly improved. In addition, the high-precision test requirement for repeated disassembly of motors of different specifications under the same output shaft diameter can be met.

The invention discloses a connector fixing structure and a fan fixing frame. The connector fixing structure comprises a structural wall, an elastic limiting piece and a connector body. The structure wall is provided with an installation hole and a sliding connection structure located on the edge of the installation hole. The elastic limiting piece is arranged on the structural wall close to the mounting hole. The connector body is provided with another sliding connection structure and a limiting part. The two sliding connection structures are connected in a sliding mode so that the connector body can be arranged at a preset position, the elastic limiting piece can restrain the limiting part, and the connector body can be fixed to the installation hole. Afterwards, the elastic limiting piece can be operated so that the elastic limiting piece can be separated from the limiting part, and the connector body is allowed to slide away from the preset position. A fan fixing frame forms a fan installation space and comprises the connector fixing structure. The connector body is exposed out of the fan installation space.