98results about How to "Depth adjustment" patented technology

The invention discloses a river dredging device, and relates to the technical field of river dredging. The river dredging device comprises a dragging and carrying platform and further comprises a dredging cover with the lower end being open, a barrier plate obliquely fixed to the bottom of the front end of the dredging cover, and supporting wheels evenly distributed on the left side and the right side of the dredging cover. A silt storage box is fixedly mounted on the dragging and carrying platform. The dragging and carrying platform is connected with the dredging cover through a cable. A spring expansion plate is mounted at the bottom of the rear side wall of the dredging cover in a matched mode. A silt removing device and a conveying device are arranged in the dredging cover. The silt removing device comprises a transfer box matched with the rear side wall of the dredging cover, a high-pressure air pump fixed to the top of the dredging cover, and an electric push rod fixed to the top end of the interior of the dredging cover. The river dredging device has the beneficial effects that the application range is wide, the construction process is simple, the construction efficiency is high, and the influence on river water can be reduced.

The invention discloses a remote control water quality monitoring buoy. The remote control water quality monitoring buoy comprises a buoyancy tank and an adjusting box; a water drainage tank communicates with the bottom of the buoyancy tank; a water drainage pipe communicates with the bottom of the water drainage tank; a partition plate is fixedly connected between the two sides of a cavity of thebuoyancy tank; a motor box is fixedly connected between one side of the top of the partition plate and the top of the cavity of the buoyancy tank; and a first motor is fixedly connected to one side of the bottom of the cavity of the motor box through a supporting plate. The invention relates to the technical field of water quality monitoring. The remote control water quality monitoring buoy can monitor the water quality of water at different depths in the same water area and is convenient for a user to monitor the water quality at different depths; the comprehensiveness and diversification ofwater quality monitoring are enhanced; the monitoring data range is enlarged so that the monitoring result is more comprehensive; and moreover, the user can remotely control the descending depth of awater pump so that energy can be greatly saved; and the sunlight utilization rate of a solar cell panel can be increased.

The invention relates to a clamping device, in particular to a clamping device for nail driving. The technical problem to be solved is to provide the clamping device for nail driving which is characterized in that a nail can be clamped, so that people can drive in the nail conveniently, do not need to hold the nail by hands, and can be prevented from knocked injury, in addition, the drive-in depthof one nail can be consistent with that of another nail. The technical scheme is to provide the clamping device for the nail driving. The device comprises a holding rod, a swing rod, a first spring,an L-shaped frame, a sleeve, a cylinder body, a vertical sliding block and the like; the swing rod is hinged to the left side of the front side face of the holding rod, first grooves are formed in theleft side of the inner top of the swing rod and the left side of the top of the holding rod, and the first spring is connected between the bottom of the first groove at the lower portion and the topof the first groove at the upper portion. According to the device, the nail can be clamped by the cooperation between an arc-shaped plate and a clamping groove, the nail can be in contact with the cylinder body, then the cylinder body is knocked to move downwards, thus the nail can move downwards to be driven into a wooded board; the nail is not required to be held by hands, so that the hands areprevented from knocked injury; and by means of a prying device, people can conveniently pull the nail out of the wooden board.

The invention relates to a fast inlaying grafting assembly swimming pool, which comprises a pool bottom, pool walls and a water purification device, wherein the pool walls are enclosed by a plurality of decorative structural slabs connected end to end; the upside, lower side and lateral sides of the slab body of each decorative structural slab extend inward respectively to form up flanging, down flanging and side flanging; a backing plate for the side flanging is arranged at the inner side of the side flanging; the external side of the side flanging is coated with U-shaped section bars; injection inlaying grafting parts are vertically distributed at the external sides of the U-shaped section bars at intervals and horizontal step bolt holes are arranged in the middle parts of the injectioninlaying grafting parts; and bolts pass through the step bolt holes to detachably connect the injection inlaying grafting parts with the side flanging, the backing plates for the side flanging and the U-shaped section bars together. The device has simple structure and reasonable cost, can be transported, assembled and disassembled conveniently and fast due to light weight, can be assembled for use and disassembled at any time, has high strength, corrosion resistance and long service life, and greatly exceeds the size of the existing temporary assembled and disassembled swimming pool.