42results about How to "No manual wiping required" patented technology

A blackboard with three surfaces capable of being turned is composed of a blackboard body device and a blackboard eraser device, wherein the blackboard eraser device is arranged on the back surface of the blackboard body device and erases the blackboard. The blackboard has the automatic erasing function. The writing area of the blackboard can be increased without changing the width of the blackboard.

The invention belongs to the field of equipment for construction costs, and particularly discloses a lifting type working table for the construction costs. The lifting type working table for the construction costs comprises a table top, wherein a vertical display board is arranged on the table top, and the display board is connected with a wiping mechanism. The wiping mechanism comprises a transverse sliding rail vertically and slidably connected to the table top, a sliding seat is transversely and slidably connected to the sliding rail, and a sliding driving piece for driving the sliding seatto slide on the sliding rail is connected to the sliding seat; a driving shaft is rotationally connected with the sliding seat, and a rotating rod is fixed to the driving shaft, and wiping brushes are separately connected to both ends of the rotating rod; and a pressing piece for driving the wiping brushes to move close to the display board is further arranged below the sliding seat, and a scraping board capable of scraping the wiping surfaces of the wiping brushes is fixed above the sliding seat. According to the lifting type working table for the construction costs, the problem that the wiping effect of a blackboard eraser to be poor due to the fact that chalk dust forms blocks on a sponge of the blackboard eraser when a display board on an existing working table for the construction costs is manually wiped.

The invention provides an English word recitation device capable of improving memory assistance, comprising a device main body; a support frame is connected to the bottom of the device main body, an upper display port and a lower display port are arranged on the front side of the device main body, and the lower display port is provided with an upper display port and a lower display port. There is also a writing board on the lower side, a bevel gear A is fixedly connected to the front end of the transverse transmission shaft, and a transmission gear A is also fixedly connected to the transverse transmission shaft. In the inner middle position, the rear end of the contact rod is connected to the inner wall of the main body of the device, and the front end of the contact rod is provided with a contact. Transmit words and corresponding actions or pictures to the display controller and display them up and down on the micro-display in turn. When the stepper motor rotates 3 times, it drives the next group of micro-displays to the upper display port and the lower display port. Demonstrate and do a single wipe of the writing board with the wipe sponge on the wipe frame.

The invention relates to a cleaning device for a rubber cylinder of a printing press, which comprises a mounting frame and a cleaning roller set arranged in the printing press, and the cleaning roller set includes two cloth wrapping rollers arranged at intervals and a cloth wrapping roller wound on the surface of the cloth wrapping roller Cleaning cloth, the two ends of the cleaning cloth are respectively fixed on two cloth winding rollers, the cleaning cloth located between the two cloth winding rollers protrudes upwards in an arched shape, and one side of the protrusion is formed to contact the rubber cylinder On the cleaning surface of the surface, both ends of the two cloth winding rollers are rotatably connected to the installation frame, and an air outlet is installed between the installation frames, and the air outlet of the air outlet faces the concave side of the cleaning cloth. The invention has the effect of cleaning the rubber cylinder.

The invention relates to a tool for carrying out form sense deprivation on an animal to induce myopia in myopic eye research. An inducing tool of an animal myopia model is an eyeshade which is rectangular approximately; the eyeshade is made of a plastic board which is non-toxic and has certain plasticity; the upper edge of the eyeshade deflects forwards to a position corresponding to the nasal side of the animal; the upper edge of the eyeshade extends backwards to a position corresponding to the back part of an auricle of the animal; and a first notch is arranged at the position correspondingto the auricle of the animal, and the position, corresponding to an eyeball of the animal, is provided with an opaque hemisphere which is carinal outwards. Compared with the prior art, when being adopted to carry out myopia induction test on the animal, the inducing tool has the advantages of little pain born by the animal, convenience, stability, duration, light wound, high efficiency and low cost.