3results about How to "Increase the compression area" patented technology

The present application relates to the technical field of plunger pump, in particular to a variable stroke double cavity plunger pump, which comprises a shell and a driving motor, two delivery pipes are arranged in the shell, two groups of crankshaft assemblies are arranged on the output shaft of the driving motor, the shell is connected with the corresponding delivery pipe through the crankshaft assembly, and a first one-way valve and a second one-way valve are symmetrically arranged in the delivery pipe along the axis of the crankshaft assembly; the one-way valve comprises a reset assembly, a sealing assembly and a clamping assembly arranged in sequence from top to bottom, the sealing of the sealing assembly is realized by the elastic extension of the reset assembly and the adhesion of the clamping assembly; the sealing assembly on the first one-way valve is provided with a first negative pressure assembly, the sealing assembly on the second one-way valve is provided with a second negative pressure assembly, and the first negative pressure assembly and the second negative pressure assembly are oppositely arranged; by arranging the negative pressure disc and the connecting pipe, the stress area of the sealing ball under the negative pressure condition is increased, the opening speed is accelerated, and the fluid passing efficiency is improved.

The utility model relates to a container aluminum profile machining device, include: bed body, frock table, first air cylinder, pressing plate, gantry, electric spindle, compression piece and tool bit, the plane is formed with above bed body, multiple frock tables horizontal arrangement and be located above the plane of bed body, frock table is fixed with bed body and can dismantle and connect, first air cylinder is located frock table horizontal side and is fixedly connected with bed body, the piston rod of first air cylinder is fixedly connected with pressing plate, pressing plate below is fixedly connected with compression piece, two compression pieces are located above frock table longitudinal both ends respectively, gantry is connected with bed body and slides and moves relative to bed body longitudinally, electric spindle is connected with gantry, and electric spindle drives tool bit rotation. The utility model's frock table longitudinal length is greater than aluminum profile, can process a complete lateral surface after once clamping, and the number of clamping and processing is less, improves the processing accuracy, reduces the work load, improves work efficiency.

A water conservancy slope protection net, including strip fixed plate, positioning plug, U-shaped positioning plate, positioning plug rod, fixed shaft rod, positioning stand, rotating pressing plate, magnetic sheet, U-shaped clamping plate, the lower part of the strip fixed plate is connected with the positioning plug, three positioning plugs are evenly distributed in the lower part of the strip fixed plate, the side of the positioning plug has an auxiliary plug, three auxiliary plugs are evenly distributed in the shaft side of the positioning plug, the lower surface of the strip fixed plate is attached to the side skin, the lower part of the U-shaped positioning plate is connected with the strip fixed plate, the U-shaped positioning plate has a strip sliding hole, the positioning plug rod is adapted to the strip sliding hole, the positioning plug rod is inserted into the strip sliding hole, the positioning plug rod slides in the strip sliding hole, the lower part of the positioning plug rod has a plug rod lower disc, the upper surface of the plug rod lower disc is attached to the U-shaped positioning plate, and the lower surface of the plug rod lower disc is attached to the strip fixed plate.