39results about How to "Smooth passing" patented technology

The invention relates to a control method of an automatic driving vehicle. The method comprises the following steps of when a to-be-driven road section of the vehicle is confirmed to contain a bridgeopening, judging a lane where the vehicle is positioned, and taking the corresponding measures, such as lane changing, deceleration, etc., in advance according to the condition of the lane, so that the vehicle can safely and stably pass through the road section.

The invention belongs to the field of galvanizing and processing of steel pipes and specifically relates to a pipe pressing device for a galvanizing machine. The pipe pressing device comprises a guide sliding sleeve, a pressing rod, a pressing plate part and a power part, wherein the pressing rod is arranged on the guide sliding sleeve and is capable of moving up and down along the guide sliding sleeve; the pressing plate part is arranged on the bottom end of the pressing rod; the power part is connected with the top end of the pressing rod; the pressing plate part comprises a pressing plate base connected with the bottom end of the pressing rod and a pressing plate arranged on the bottom of the pressing plate base; a plurality of pressing plate grooves with arc sections in parallel arrangement are concavely formed in the pressing plate; the pressing plate grooves are connected through an arc transition section; a galvanizing pond is provided with a pipe pressing device; after galvanizing, a large amount of air still exists in a pipe cavity of a steel pipe with an external diameter of 20-22mm and a wall thickness less than or equal to 1.6mm, so that the rear end of the steel pipe is smoothly pressed downwards; the inclination angle of the pressed steel pipe is similar to that of a transmission device, so that the steel pipe is smoothly transmitted out of the galvanizing pond; the faults that the steel pipe is bent or the device is jammed and the like cannot occur in the transmission process, so that the working efficiency is improved.

The invention discloses a speed bump for a sponge city, which comprises a water storage tank and a speed bump body. The water storage tank is buried in a soil layer, and a contraction groove is opened on the upper end of the soil layer. A plurality of shrinkage grooves are inserted at the bottom of the shrinkage groove The seepage pipe connected with the interior of the water storage tank, the bottom of the contraction groove is provided with a support mechanism for supporting the speed bump body, the upper end of the speed bump body is provided with a movable groove, and the inner wall of the movable groove is slidably connected with a pressing plate, A water spray chamber is opened inside the speed bump body. The advantage is that when the vehicle passes the body of the speed bump, it will squeeze the pressing plate to move downward, so that the hydraulic oil in the squeeze box will be squeezed to push the push plate to move, and then the push plate will push the rainwater pressure in the box. Into the spray pipe, and finally the rainwater in the spray chamber is squeezed by the rainwater in the spray pipe and sprayed out from the spray hole, so as to realize the utilization of rainwater, and can reduce the ground temperature when the weather is hot, thereby improving the environment of the park. surroundings.

The present invention relates to a method and device for humidifying and treating polyacrylonitrile precursors for carbonization of carbon fibers; the polyacrylonitrile precursors are drawn, and the tows are clamped by cotton cloth in a humidifying device above the comb teeth before the filaments are separated. Cotton cloth contact, control the water volume through the water flow control ball valve on the desalinated water delivery pipe, and drop water to the cotton cloth, tow and wet cotton cloth clip on the cotton cloth clip in the humidification device through the perforated water spray pipe on the upper part of the cotton cloth clip contact with the cotton cloth, so that the tow is moistened by desalinated water, and the tow with a wet surface and good bundling property is obtained; this method solves the problems of high static electricity, many wool filaments, and poor bundling property of the polypropylene raw silk, and the qualified rate of the product is improved. About 3%, the strength index increased by 0.4GPa.

The present invention forms a smooth thin-film copper film on a smooth fluororesin by using a physical vapor deposition method, and appropriately selects the type of the physical vapor deposition method to provide a device that ensures adhesion strength between the fluororesin and the copper film and can form wiring. Metallized film. By controlling the thickness of the metal film formed by sputtering to a minimum and combining it with a vacuum evaporation method, it is possible to provide a metallized film capable of electrolytic plating, stable in adhesion strength, and capable of forming wiring.

The invention discloses a device comprising a packing box, electronic equipment and an electronic device. Holes are arranged on the packing box comprising a cavity structure so that sound generated by the electronic equipment can be transmitted to space outside the packing box when the electronic equipment is arranged in the packing box. Therefore, the technical scheme has the effects that the electronic equipment can be protected from being worn or damaged by external force by the packing box of the electronic equipment and also has the technical effects that sound transmission efficiency of the electronic equipment in sound playing can also be enhanced.

The invention discloses a self-propelled chassis with an adjustable transverse wheel tread and an adjustable ground clearance. The self-propelled chassis is composed of a frame, a front axle, a rear axle, a power system, a ground clearance adjusting system, a transverse wheel tread adjusting system and a steady adjusting and controlling system. The power system comprises an engine, a clutch, a pump station, a hydraulic motor, a proportional valve and the like. The ground clearance adjusting system comprises a controller, a servo valve, ground clearance adjusting hydraulic cylinders and the like, wherein the controller adjusts the four ground clearance adjusting hydraulic cylinders through the servo valve to synchronously ascend and descend to change the ground clearance of the chassis. The transverse wheel tread adjusting system comprises a servo valve, a controller, a wheel tread adjusting hydraulic cylinder and the like, wherein the hydraulic cylinder drives a piston rod according to an instruction of the controller, drives an axle shaft connecting piece to move through a connecting flange, pushes wheels to transversely move and adjusts the transverse wheel tread of the chassis. The steady adjusting and controlling system controls flows of the four ground clearance adjusting hydraulic cylinders respectively through the servo valve according to unsteady signals, collected by a gyroscope, of the front axle and unsteady signals, collected by the gyroscope, of the rear axle, and automatically adjusts balance and stability of the chassis.

The invention relates to a butt joint device and a butt joint method for building fireproof door walls. The device is communicated with installed overhead floors on two sides of the building fireproof door walls; and an expansion joint is formed between the two building fireproof door walls on the ground. The device comprises a butt joint floor and a support mechanism for supporting the butt joint floor, wherein the butt joint floor is subjected to horizontal butt joint together with the installed overhead floors on the two sides under the support action of the support mechanism. In the device, the butt joint floor is subjected to the horizontal butt joint together with the installed overhead floors, the butt joint floor and the installed overhead floors are positioned on the same horizontal plane, and a height difference between the butt joint floor and the installed overhead floors is avoided, so that a cart can pass through the building fireproof door walls stably without vibration, and the safety of circular sheets is ensured.