Automatic fishing device for floaters at water flowing opening

An automatic fishing device for floaters at a water flowing opening belongs to the technical field of environmental protection equipment and comprises a frame body, a driving mechanism, an underwater transmission mechanism, a top transmission mechanism, a lifting mechanism, a floating carrier, a connecting rod assembly and a material receiving device, a driving mechanism is installed at a water flowing opening, the axis of a water wheel coincides with the water surface, and an underwater transmission mechanism is installed below the water surface in front of the water flowing opening; flowing water impacts the blades to transmit power and drive the conveying belt to lift the row forks, the row forks are lifted upwards from the position below the water surface, floating objects on the water surface are directly collected, automatic fishing of the floating objects in the flowing water is completed, two fishing rakes do not need to be mutually switched, the collected objects can be prevented ...

Disappear and boil special iron stand platform

The utility model discloses a disappear and boil special iron stand platform, it includes electric stove (4), its characterized in that: installing support frame (1) at electric stove (4) side, being provided with gim peg (2) on support frame (1), quoit (3) are fixed on support frame (1) through gim peg (3), and electric stove (4) are located quoit (3) below, and gim peg (2) can be adjusted about support frame (1), the problem of disappearing of prior art boil the device and boil difficult fixed the rocking easily of in -process kai shi bottle and lead to the fact the sample damage to scald clothing skin even and once disappear and boil disappearing of obtaining and boil the experimental progress of the few delay of appearance etc. Disappearing is solved.

Pallet device

The tray device includes a base plate with a fixed rotary joint, a pedestal, a tray, a hydraulic motor, a hydraulic cylinder fixed on the pedestal, a rotary drive unit and a longitudinal shift unit. The tray is one semi-spherical casing, and has one hollow bottom on the rotary joint with some gap, and a central pivot mounted on the rotary joint inside the cavity. There are an upper thrust bearing fixed in the bottom of the central pivot, a lower thrust bearing fixed on the pedestal, and a piston rod in the hydraulic cylinder connected to the tray. In this way, the movable tray can swing around the spherical center of the casing and has different motion directions.

Simple and convenient liquid -transfering device

The utility model discloses a simple and convenient liquid -transfering device, including the injection syringe, but be provided with the piston of back -and -forth movement in the injection syringe, the pipe of injection syringe is imported and exported and is connected with the sample tubule, is provided with filtration membrane between sample tubule and pipe are imported and exported, and through at syringe exit installation filtration membrane, the sample precipitates or the entering of residue in the time of can effectively preventing to inhale kind, guarantees to test the effect, also utilizes and protects detecting instrument, the sample tubule that adopts simultaneously is the flexible plastic pipe, and length is all adjustable, may not lie in splendid attire sample container's bore, degree of depth size direct sampling, and save time improves test efficiency, the utility model has the advantages of the practicality is strong, easy and simple to handle, can use widely in R&D institutions ...

Missile adaptive control law design method suitable for navigation precision reduction

The invention relates to a missile adaptive control law design method suitable for navigation precision reduction, and belongs to the field of controllers. The method comprises the steps of firstly establishing a six-degree-of-freedom model of a missile; secondly, introducing disturbance and uncertainty of the system into a system model; and finally, designing a control law and a self-adaptive law, and eliminating the influence of uncertain external disturbance and uncertainty of the system by introducing a self-adaptive compensation item. The method is simple in design, has better robustness for controller parameters, and can well eliminate uncertain external errors and uncertainty caused by reduction of guided missile navigation precision.

Soil volatile ammonia absorption device with rain cover

The invention discloses a soil volatile ammonia absorption device with a rain cover. The soil volatile ammonia absorption device comprises a straight cylinder, wherein two sponge plates are arranged in the straight cylinder at an interval, and the rain cover is arranged above the straight cylinder and fixed on the straight cylinder by virtue of support rods. According to the soil volatile ammonia absorption device, the rain cover is arranged above the straight cylinder, the absorption measurement of soil volatile ammonia can be effectively prevented from being interfered in rainy days, the accuracy of the absorption measurement of the soil volatile ammonia is ensured; meanwhile, two sponges are arranged in the straight cylinder, the sponge positioned at the lower part is used for absorbing the soil volatile ammonia, the sponge positioned at the upper part can be used for preventing the soil volatile ammonia outside the device from being absorbed by the device, and can be further used for ...

High-speed rotation testing machine

The invention provides a high-speed rotation testing machine, and relates to the technical field of testing, and the high-speed rotation testing machine comprises a rack which is provided with a first sliding hole and a second sliding hole; the adjusting assembly comprises a first motor, a lead screw and a lifting plate, the first motor is embedded in the bottom of the rack, the top end of the lead screw is fixedly connected with an output shaft of the first motor, and the surface of the lead screw is in threaded connection with the lifting plate; the first transmission part comprises a first transmission rod and a first sliding frame; the second transmission part comprises a second transmission rod and a second sliding frame; and the driving mechanism is mounted on the first sliding frame. According to the scheme, when the first sliding frame and the second sliding frame on the two sides are far away from each other, the driving mechanism and the locking mechanism are automatically unlocked ...

Pallet device

Soil leaching simulator

The invention discloses a soil leaching simulator. The soil leaching simulator comprises a supporting box and a side door arranged on the supporting box; the soil leaching simulator is characterized in that a group of leaching columns are fixed on the supporting box, a support is arranged between the leaching columns and fixed on the supporting box, a water feeder is arranged on the support and mounted directly above the leaching columns, and a leaching solution collector in the supporting box is located directly under the leaching columns. According to the soil leaching simulator, a valve is arranged on the water feeder so that the disturbance of soil during water feeding can be effectively prevented and the accuracy of the experimental result can be ensured, and meanwhile, the supporting box is a closed device so as to prevent the evaporation of the leachate and guarantee the accuracy of the experimental result.