Piston type washing machine

The invention discloses a piston type washing machine. A washing cylinder is columnar, a cylinder cover capable of being opened and closed is arranged at the upper end of the washing cylinder, an upper partition board and a lower partition board are installed at the middle section in the washing cylinder, and a working piston is installed at the lower section of the washing cylinder and is also connected with a motor below the washing cylinder through a transmission mechanism. Since the piston and the motor are arranged at the lower part of the washing machine, the gravity center of the washing machine is very low, the operational stability is good, and washings can be conveniently taken from the cylinder cover of the washing cylinder; the partition board in a washing bucket is used for preventing the washings from moving along with water, thus the relative speed of the water flow impact is increased and the washing effect is improved; and only one washing cylinder is required, thus the ...

Flood hydrograph same-frequency amplification method based on mixed integer programming

The invention belongs to the technical field of water conservancy and hydropower engineering design, and particularly relates to a flood hydrograph same-frequency amplification method based on mixed integer programming, which comprises the following steps: firstly, constructing and designing a flood hydrograph same-frequency amplification mixed integer programming model, taking the flow of the flood hydrograph in each time period as a decision variable, and proposing a time sequence series smoothness function; taking the model as a target function, and taking design flood peak flow, design flood volume in different time periods and fluctuation homodromous constraint as constraint conditions to ensure that the design and typical flood hydrograph have similar modes; and then solving the established model by adopting a branch cutting algorithm. The example research shows that when the relationship between the designed flood peak and the quantity is not coordinated, the designed flood hydrograph ...

Piston type washing machine

The invention discloses a piston type washing machine. A washing cylinder is columnar, a cylinder cover capable of being opened and closed is arranged at the upper end of the washing cylinder, an upper partition board and a lower partition board are installed at the middle section in the washing cylinder, and a working piston is installed at the lower section of the washing cylinder and is also connected with a motor below the washing cylinder through a transmission mechanism. Since the piston and the motor are arranged at the lower part of the washing machine, the gravity center of the washing machine is very low, the operational stability is good, and washings can be conveniently taken from the cylinder cover of the washing cylinder; the partition board in a washing bucket is used for preventing the washings from moving along with water, thus the relative speed of the water flow impact is increased and the washing effect is improved; and only one washing cylinder is required, thus the ...

Treating solution for fibrous cellulosic material

A treating solution for fibrous cellulosic material is provided. The treating solution comprises (A) an amino group functionalized organopolysiloxane, (B) an epoxy group functionalized organopolysiloxane, (C) a polycarboxylic acid, (D) an esterification catalyst, (E) an organic zirconium compound, (F) an emulsifier, and (G) water.

Method for preparing N,N - dimethyl acetamide

Weight self-adaptive pneumatic clamp

The invention provides a weight self-adaptive pneumatic clamp which comprises a base body, a plurality of supporting seats and a plurality of auxiliary fixing seats are installed on the base body, a pressing mechanism is installed on each supporting seat, and a pressing plate of each pressing mechanism is driven by a driver; a workpiece positioning pin, a plurality of floating height supports and a plurality of basic height supports are arranged on the base body; the pressing mechanism comprises a supporting body, one end of a pressing plate is hinged to the top of an extension rod of the driver, and the other end is provided with a pressing head. The auxiliary fixing base is detachably installed on the base body and comprises a positioning plate, and a positioning working face is arranged on the side, facing the center of the base body, of the positioning plate. According to the pneumatic clamping device, the stability of a workpiece in the machining operation process can be guaranteed ...

Portable fuel injector test tool

The invention provides a portable oil injector test tool which comprises a hand pump and an oil suction pump, the hand pump comprises a hand pump body, an oil pressing channel and an oil inlet channel are arranged in the hand pump body, the oil pressing channel is provided with a plunger, and the hand pump body is provided with an oil pressing structure corresponding to the plunger; oil storage cavities are formed in the oil suction pump body and share one inlet and outlet, the inlet and outlet are communicated with an outlet of the oil inlet channel, and pistons are arranged in the oil storage cavities. The portable oil injector testing tool is compact in structure, convenient to carry and easy to operate, oil suction operation is carried out through the oil suction pump, then sucked fuel oil is output to the oil injector through the hand pump, the opening pressure of the oil injector is detected, and the opening pressure and the atomization quality of the oil injector are tested under ...