53results about How to "Against gravity" patented technology

The invention relates to a fruit feeding device and belongs to the field of conveying devices. The fruit feeding device solves the problem that cleaning cost of fruits is high. According to the technical scheme, the fruit feeding device solves the problem and comprises a hopper, the bottom end face of the hopper is provided with a feeding pipe communicated with the hopper. The fruit feeding device further comprises a motor, a feeding opening is formed in the feeding pipe, one side of the feeding opening is provided with a rotating cylinder connected with the motor, the side wall of the rotating cylinder is provided with a discharging opening and an inductor connected with a circuit of the motor in series, the discharging opening can correspond to the feeding opening, and the rotating cylinder can rotate to open or close the feeding opening.

The invention belongs to the technical field of display screen supports, in particular to a computer display screen support. The computer display screen support comprises a mounting support, the mounting support comprises a base, a connecting rod, a rotating sleeve, a connecting cross rod, a fixing shaft, a connecting piece and a mounting plate, the rotating sleeve and the base are sequentially connected to the outer portion of the connecting rod from front to back in a sleeving mode, the bottom of the rotating sleeve is fixedly connected with the connecting cross rod, and the interior of the connecting cross rod is fixedly connected with the fixing shaft. According to the computer display screen support, the connecting piece is matched with the fixing shaft, so that the connecting piece can be rotated when the angle of a display screen needs to be adjusted, the angle of the connecting cross rod can be adjusted through the rotating sleeve, the transverse position of the display screen can be changed after the angle of the connecting cross rod is adjusted, the angle of the connecting rod can be adjusted through the base, the angle and the position of the display screen can be adjusted by adjusting the connecting rod, the connecting cross rod and the connecting piece, and use is more convenient.

The invention relates to a multifunctional heavy-duty supporting device for wind power single piles, which includes a base, a driving assembly placed on the base, and a supporting seat placed above the driving assembly. Adjusting seats are respectively provided on both sides of the upper end of the supporting seat, and the two There are circular arc surfaces on the adjustment seats, and the arc surfaces on the two adjustment seats form a notch for the single pile of wind power to be snapped in. The center position of the support seat is a rotating assembly that can be lifted up and down, and the adjustment seat has a support assembly. The two supporting components are arranged axisymmetrically with the rotating component as the center; when the rotating component falls below the upper end surface of the support seat, the wind power monopile is stuck in the notch and is supported and fixed by the supporting components on both sides; when the rotating component rises to the support When the seat is above the end surface, the wind power monopile forms an integral rotation with the support assembly as the rotating assembly rotates. The invention has the advantages of ensuring the surface quality of the wind power single pile while ensuring the rotation stability of the wind power single pile.

The invention discloses a composite dispersion method for polyimide chopped fibers, which belongs to the technical field of dispersion mechanism. The dispersing method of the present invention comprises the following steps: (1) adopt acid to carry out surface modification: polyimide chopped fiber is added in the acid solution to carry out surface modification, afterwards washing, drying; (2) use hexamethylenediamine Carry out surface grafting: add cationic surfactant to hexamethylenediamine solution, mix well to obtain a mixed solution; add polyimide chopped fibers treated with acid surface modification to the mixed solution for surface grafting, after the reaction , to obtain a fiber suspension; (3) ultrasonically treating the fiber suspension to obtain a uniformly dispersed polyimide chopped fiber suspension. The dispersion degree of the fiber suspension obtained by the invention can be as high as 45%, which is beneficial to the preparation of high-performance polyimide paper.

The invention discloses a trolley facilitating mold erecting and demolding and a using method thereof. The trolley facilitating mold erecting and demolding comprises a support, first formworks and a second formwork; the first formworks are connected to the support in a sliding mode in the left-right direction, the two first formworks are arranged at the left end and the right end of the support respectively, and the two first formworks can be close to or away from each other in the left-right direction; the second formwork is connected with the support in a sliding mode in the vertical direction, one first formwork is spliced with the other first formwork through the second formwork, the second formwork is arranged between the two first formworks, and the second formwork can prevent the two first formworks from getting close to each other in the left-right direction; and first splicing slopes are arranged at the opposite ends of the two first formworks, and second splicing slopes matched with the first splicing slopes are arranged at the left end and the right end of the second formwork.

The invention belongs to the technical field of painting and calligraphy, and particularly relates to a writing brush for side-tip painting of a traditional Chinese painting. The writing brush comprises a brush point and a brush rod, wherein the brush point is arranged at the end of the brush rod, and the brush point comprises, by weight percent, 30% to 40% of hemp feather and 60% to 70% of wolf hairs. The invention further provides a manufacturing method of the brush. The method comprises the following steps that firstly, the hemp feather is selected and subjected to water-holding optimized treatment; secondly, circus is selected for serving as wolf hair raw materials and subjected to degreasing and modified treatment; thirdly, the hemp feather and the circus are mixed according to the proportion and mounted on the brush rod to manufacture the writing brush. The method has the beneficial effects that the hemp feather and the circus are optimized, the water holding performance of the hemp feather and the hydrophobicity of the circus are improved and controlled, the hemp feather and the circus are regulated, the holding degree of the writing brush to liquid paint is ensured macroscopically, and painting is easier and easy to implement.

The invention discloses a dust prevention device for a construction site, which comprises a fixed plate, a hollow groove is opened in the fixed plate, an electromagnetic coil is fixedly installed on the inner top wall of the hollow groove, and a sealing slide is arranged in the hollow groove. There are permanent magnets, and a plurality of photovoltaic panels are arranged in an array on the outer wall of the fixed plate, and a wire group, a touch panel and a circuit board are fixed in the side wall of the fixed board, and the circuit board and the wire group They are respectively located above and below the electromagnetic coil, the touch panel is located between the wire group and the electromagnetic coil, a lightweight plate is slidably arranged on the outer wall of the fixed plate, and the lower end of the light plate is fixedly clamped with a As for the adsorption strip, the upper end of the light plate is fixedly bonded with a dust-proof net, and the lower part of the fixed plate is fixedly equipped with a scraper. The invention can not only automatically flatten and roll up the dust-proof net to capture the dust in the air, but also intermittently spray water mist to reduce the dust content in the air.

The invention discloses a built-in air bag type anti-collision device based on prestressed reinforcement. The device comprises an outer steel wall plate, a lining steel wall plate, multiple prestressed tendons and an up-buckling steel plate, wherein the bottom ends of the prestressed tendons are anchored at the bottom of the outer steel wall plate; the up-buckling steel plate is buckled on the outer side of the outer steel wall plate, and the lower part of the up-buckling steel plate is tensioned through multiple prestressed tendons; an anti-collision cavity is formed between the outer steel wall plate and the lining steel wall plate; a counter weight pad layer is arranged at the bottom of the anti-collision cavity; multiple rubber air bags are filled in the anti-collision cavity at the upper part of the counter weight pad layer and arranged on the same plane; the lining steel wall plate is located on the outer side of a device needing protection; an energy absorption pad layer is arranged between the lining steel wall plate and the device needing protection; and the upper end part of the up-buckling steel plate is fixed at the top of the energy absorption pad layer. The device disclosed by the invention has the advantages of reasonable structure design, low investment cost, long service life and good using effect, is convenient to construct, and can effectively overcome the shortcomings of higher investment cost, shorter service life, poor anti-collision effect and the like of the anti-collision facility of the existing traffic tool.