31results about How to "All-in-one connection" patented technology

The invention relates to the technical field of track traffic, and discloses a lightweight environmental protective high speed train sliding plug door cover plate and preparation method. The lightweight environmental protective high speed train sliding plug door cover plate comprises a left door cover plate, a right door cover plate and a top door cover plate connected to the tops of the left doorcover plate and the right door cover plate in a crossing mode, wherein the left door cover plate, the right door cover plate and the top door cover plate are formed by mold pressing hemp fiber composite plates, and the back surfaces of the left door cover plate, the right door cover plate and the top door cover plate are connected with metal reinforcing ribs correspondingly; and the mold pressinghemp fiber composite plates comprise front surface layers, middle layers and back surface layers, the front surface layers, the middle layers and the back surface layers are sequentially connected inan overlapping mode, the middle layers are hemp fiber felt layers prepared from synthetic fabrics of the hemp fiber and polypropylene fiber, and the front surface layers and the back surface layers are both non-woven fabrics. According to the lightweight environmental protective high speed train sliding plug door cover plate and the preparation method, lightweight of the high speed train slidingplug door cover plate is achieved, and environmental protective performance of the sliding plug door cover plate is further improved.

The invention discloses a control system of a hydraulic hammer and belongs to the field of hydraulic machinery. The control system comprises a hydraulic cylinder, a hammer rod, a hammer head, a valve pocket and a cylinder hydraulic valve element. The valve pocket is fixed to the top end of a cylinder body in a sealing manner, the cylinder hydraulic valve element is arranged in the valve pocket and the cylinder body, an annular boss is arranged in the middle portion of the cylinder hydraulic valve, the annular boss is arranged between the part from a lower step face of the valve pocket to the lower end and the top end of the cylinder body of the hydraulic cylinder, a second step is arranged on the inner side wall of the upper part of the cylinder body, and the cylinder hydraulic valve element is arranged between the valve pocket and the second step of the cylinder body in a sliding fit manner. An inner end piston of the hammer rod is arranged in the cylinder hydraulic valve element and the cylinder body in a sliding fit manner. The side wall of the valve pocket is provided with a first oil opening, the side wall of the valve pocket is provided with a second oil opening and a third oil opening, the side wall of the cylinder body is provided with a fourth oil opening and a fifth oil opening, the center of the upper top end of the valve pocket is provided with a sixth oil opening, and the first oil opening, the second oil opening, the third oil opening, the fourth oil opening, the fifth oil opening and the sixth oil opening are connected with a hydraulic oil way system. The system is low in valve element weight, quick in responding, high in precision and high in hydraulic transmission efficiency.

The invention discloses a variable-speed rigid rotor blade, which comprises a variable-section split winding girder belt, a variable-section trailing edge strip, a split bushing assembly, a PMI rigid foam core and a composite material skin; The variable cross-section split-wound girder belt is laid at the leading edge along the span of the blade, and the cross-sectional area is linearly distributed and gradually decreases; at the root of the blade, the variable-section split-wound girder belt is divided into two parts, the upper and lower airfoils. and respectively wound on the split bushing assembly; the variable-section trailing edge strip is laid between the trailing edge of the blade and the composite material skin along the span of the blade, and the cross-sectional area is linearly distributed along the span of the blade; The PMI rigid foam filler is placed between the variable-section split-wound girder belt and the variable-section trailing edge strip. The variable speed rigid rotor blade of the present invention can meet the dynamic rigidity requirement of the blade, can realize the integral connection of the blade and the hub, and reduce the resistance of the hub.

The invention relates to integrated cleaning equipment for a water conservancy diversion canal. The integrated cleaning equipment comprises a trolley and a water tank, and a spraying device is mounted on the trolley; two sets of electric push rods extending downwards in an inclined mode are fixed to the water tank, a frame is jointly installed at the lower ends of the two sets of electric push rods, a first cleaning roller is rotationally installed on the lower end face of the frame, and a first motor rotating coaxially with the first cleaning roller is installed at one end of the first cleaning roller. Connecting rods are installed on the edges of the two sides of the frame body, bases are hinged to the upper end faces of all the sets of connecting rods, second motors are installed on the bases, and second cleaning rollers are coaxially arranged on output shafts of all the sets of second motors in a rotating mode. First telescopic rods are hinged to the two sets of vertical rods, limiting rings are hinged to the first telescopic rods, and the second cleaning rollers are inserted into open holes in the limiting rings to rotate. A battery is mounted on the trolley. According to the cleaning equipment, impurities on the inner walls of the two sides of the diversion canal are cleaned, and the defect that existing cleaning equipment can only clean the inner bottom face of the diversion canal is overcome.

A connection method for integrally connecting a plurality of metal core wires arranged side by side, comprising: placing a predetermined part of the metal core wires on a lower joint module, using a positioning mechanism to position the metal core wires, and placing the metal core wires by Reinforcement material made of metal is placed on said metal core wire on the lower side joint module, the upper side joint module arranged correspondingly to the lower side joint module is lowered until it touches said reinforcement material, and using said upper side The bonding module and the lower bonding module apply ultrasonic welding or resistance welding to the metal core wire and the reinforcement material, so that the metal core wire and the reinforcement material at the predetermined position are integrally connected together. By this method, during the integral connection of the metal core wires of the flat cable, stable connection strength can be obtained and breakage of a single metal core wire can be prevented.

Disclosed is a bidirectional waste heat recovery device for outdoor air pretreatment of an air conditioner. The corresponding duct housing walls of an exhaust heat exchange duct and an outdoor air heat exchange duct are provided coaxial through holes; a sealing separating plate with a hole is mounted inside the through holes, and the inside of the hole of the sealing separating plate is sequentially provided with a universal retractable structure and an internal fixed separating plate from outside to inside; a plurality of heat pipes are arranged arrays in the internal fixing plate in a penetrating mode through holes formed in the internal fixing plate; the heat pipes penetrating the exhaust heat exchange duct and the outdoor air heat exchange duct are provided with a plurality of fins in a sleeving mode; a thermal insulating cavity is arranged outside the heat pipes between the exhaust heat exchange duct and the outdoor air heat exchange duct; both ends of the housing of the exhaust heat exchange duct and the outdoor air heat exchange duct are connected with retracting structures; the duct housing walls at both ends of the heat pipes are symmetrically provided with a variable resetting mechanism for lifting the ducts up and down. The bidirectional waste heat recovery device for outdoor air pretreatment of the air conditioner is simple in structure, convenient to operate, free in adjustment of operational conditions and heat exchange efficiency and high in energy recovery rate.

The invention discloses an LED display screen which comprises a box body, a display module and a sealing ring. The display module is arranged on the box body, and the sealing ring is arranged between the box body and the display module. The surface of the box body is provided with an opening. The display module is electrically connected with a circuit board inside the box body through the opening. The display module comprises a module body and an installation base arranged on the back side of the module body. The installation base is used for installation of the sealing ring. The sealing ring surrounds the periphery of the opening and is arranged between the installation base and the surface on the periphery of the opening in an elastic extrusion mode so as to seal a gap formed between the back side of the module body and the surface on the periphery of the opening. The LED display screen is simple in waterproof structure and good in waterproof effect, and can achieve the waterproof level being IPx5.

The invention relates to a length-adjustable integrated warning board for forbidding parking. The length-adjustable integrated warning board for forbidding parking comprises a plurality of warning board bodies and connecting wires. Each warning board body is connected with a hollow metal ball through a supporting rod, and each hollow metal ball is provided with through holes. Each hollow metal ball is rotatably connected with two demounting assemblies through the through holes, each demounting assembly comprises a rotating ball, a connecting rod and a demounting sleeve, wherein each rotating ball is arranged in the corresponding hollow metal ball, one end of each connecting rod penetrates through the through hole in the corresponding side to be connected to the corresponding rotating ball, the other end of each connecting rod is connected to the corresponding demounting sleeve, the diameters of the through holes are larger than the outer diameters of the connecting rods, the diameters of the rotating balls are larger than those of the through holes, and matching cavities are embedded into the demounting sleeves. Connecting heads are arranged at the two ends of each connecting wire respectively, and the connecting heads are connected to the matching cavities in a matched mode. Limiting parts are arranged on the end faces of the connecting heads in a stretching mode, the limiting parts are connected with winding wheels through splines, and arc grooves are embedded into the outer side faces of the winding wheels. The connecting heads are provided with round holes in a penetrating mode. According to the length-adjustable integrated warning board for forbidding parking, multiple length-adjustable integrated warning boards can be connected to achieve integrated use, and the distances between the adjacent washing boards are convenient to adjust.

The invention discloses an in-wheel motor with a built-in torque sensor, which comprises a motor body and a torque sensing box. A front panel of an end cover is installed on the front of the motor body, and a torque sensing box is installed on the front of the front panel of the end cover. A transmission rod is installed inside the extrusion runner, a heat dissipation explosion-proof box is installed on the surface of the motor body, a sealed heat insulation module is installed on the front of the transmission rod, and two groups of symmetrical Arranged winding posts, two sets of symmetrically arranged correction boxes are installed on the surface of the rotor assembly. The present invention installs the torque sensing box, the deformed force block, the deformed resistance block, the No. 1 pressure sensor and the No. 2 pressure sensor, when the bicycle is started from a static state or encounters resistance during riding, the instant and dynamic The combination of detection, according to the rider's pedaling force, continuously adjusts and controls the power output of the motor, thereby assisting the rider to ride more effortlessly.

The present invention discloses anode welding method for metal and glass and ceramic and belongs to the field of different material connection technology. Under atmosphere and at low welding temperature, the present invention complete solid connection directly without any added intermediate material. Precision welding may be completed in vacuum, protecting atmosphere and air with less deformation of the workpiece and in simple technological process. The present invention may be used in welding including borosilicate glass, fiber optical glass, quartz and other non-metal material and Kovar, Fe-Ni, Al and other alloy and metal material as well as the sealing of Si, GaAs and other semiconductor material. The said technological process requires high surface processing precision and is used mainly in micro mechanism and mini sensor manufacture, electric vacuum technology, aeronautics and astronautics and other fields.

The durable sling anchoring structure comprises an anchor cup and an annular waterproof sleeve, an extension cylinder is integrally formed at the front end of an anchoring cavity of the anchor cup, asling body penetrates through the extension cylinder and then is anchored in the anchoring cavity, and the gap between the sling body and the extension cylinder is filled with sealing filler; whereinthe end part of the extension cylinder is sealed by the annular waterproof cover, the matching surface of the annular waterproof cover and the cable body is provided with a sealing ring or the annularwaterproof cover is directly welded outside the cable body, the matching surface of the annular waterproof cover and the extension cylinder is provided with a sealing ring, and the matching surface of the extension cylinder and the cable body is provided with a sealing ring. The sling anchoring structure designed by the invention has the advantages of few parts, few connecting structures of the parts, more stable overall structure, high deformation resistance and firmer sealing effect.