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9results about "Slippage prevention" patented technology
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Use of a non-slip marking tool for people with disabilities
The invention relates to the use of a marking instrument (10; 10a), such as a ruler, set square, or protractor, to refine hand movements and increase the confidence and comfort of individuals who have difficulty automating hand gestures in time and space. The instrument comprises a main body (12) with one or more lateral marking elements (22), with one or more sliding systems (14, 15) and one or more gripping systems (16), and is constructed in several blocks. The main body (12) associated with the gripping system(s) (16) and the lateral marking elements (22) associated with the sliding system(s) (14, 15) are separate blocks, and the main body is actuated by pressure to perform a gripping action. Figure for the abstract: Fig. 14
Owner:AINSEBA ABDELKADER
Stencil alignment apparatus using pliable corner guides
Owner:CHO EFFIE
Multifunctional geometric tool for junior high school
ActiveCN224103769USlippage preventionNon-circular curve drawing instrumentsStructural engineeringMechanical engineering
The utility model discloses a multifunctional junior high school geometry tool, and relates to the technical field of drawing tools. The device comprises a square plate, an inscribed circle is formed in the square plate, a circular plate is fixedly arranged in the inscribed circle, a special-shaped groove is formed in the circular plate, a first triangular block and a second triangular block are fixedly arranged in the special-shaped groove, and one side of the first triangular block is fixedly connected with one side of the second triangular block; a plurality of first holes are formed in the circular plate; through cooperation of the square plate and the ruler, a rectangular coordinate system can be accurately drawn, two geometric circles with different diameters are drawn through the inscribed circle and the circular plate, and an equilateral triangle and a special isosceles triangle are respectively drawn through the first triangular block and the second triangular block, so that the convenience of geometric figure drawing is improved; the convenience of mathematics teaching is improved; by arranging the magnet block, the geometric tool can be attracted and fixed to the blackboard through the magnet block, and operation is convenient and fast in the geometric figure drawing process.
Owner:关克娟
Mathematics teaching aid for assisting solution of trigonometric function value
Owner:JUYE COUNTY VOCATIONAL SECONDARY SCHOOL
Magnetic attraction accessory for teaching appliance
A magnetic suction accessory for a teaching appliance comprises a base, a magnetic block is assembled at the bottom of the base, the magnetic block and the base are connected through a plurality of fasteners, and a soft rubber coating layer is arranged outside the magnetic block. Compared with the prior art, the design that the magnetic block is wrapped by the rubber coating layer is adopted, the surface of the blackboard can be effectively prevented from being scratched by the magnetic block, the friction coefficient with the surface of the blackboard is increased, and under the condition of the same magnetic force, the friction force is larger, the base is not prone to sliding off, and stability is higher. In addition, the base and the magnetic block are connected through the fastener, and compared with a traditional glue bonding fixing mode, loosening is not prone to occurring, and stability is higher.
Owner:NINGBO MS SCI & EDUCATIONAL INSTR CO LTD
Antiskid ruler
The embodiment of the utility model discloses an anti-skidding ruler, which comprises a hard body, and the body is provided with a notch at the sharp corner position of the anti-skidding ruler; and the tip of the elastic body is arranged in the notch and forms a sharp corner of the anti-slip ruler. According to the anti-skid ruler, the elastic body is embedded in the sharp corner position, so that the rigidity and the precision of the hard body are kept, the impact of external force is effectively buffered, the risk of injury is reduced, and meanwhile, the accuracy of the straight line and the angle of the ruler body is ensured.
Owner:宁波思航文具有限公司
Antiskid plastic ruler
ActiveCN224060745USolve the problem of easy falling offresolve accuracySlippage preventionStraightedgesStructural engineeringSoft materials
The utility model discloses an anti-skidding plastic ruler which comprises a ruler body and an anti-skidding device, the ruler body is made of hard plastic, and the anti-skidding device is made of soft plastic. The anti-skid device is fused with the external area of the corner of the ruler body, the anti-skid device is distributed along the edge of the ruler body, the anti-skid device can bend and deform, the bending angle is adjustable, and a user can adjust the bending degree of the anti-skid device according to needs so as to adapt to different use scenes and operation requirements; the antiskid device made of soft materials and the rigid plastic ruler body are integrally designed, and through distribution and function optimization of the antiskid device and the rigid plastic ruler body, the antiskid performance of the ruler is improved, the operation convenience is enhanced, and the durability is improved; in addition, the deformable taking area is designed at the corner of the ruler body, so that the problem that a traditional ruler is prone to sliding is solved, and the experience of a user in the taking, placing and using processes is optimized.
Owner:YIWU DINGBANG STATIONERY & SPORTING GOODS
Electric kettle capable of switching power
The utility model relates to an electric kettle capable of switching power. In the actual water boiling process, drinking water can be poured into the kettle body, then power is supplied through the power supply mechanism, the current flows to the elastic pressing piece through the shunt current-conducting plate to reach the first circuit, power is supplied to the heating element through the first circuit, and then the drinking water is heated through the heating element; the sliding switch can slide, so that the sliding switch relieves pressing on one elastic pressing piece and presses the other elastic pressing piece through pressing protrusions which are arranged in a staggered mode, the other elastic pressing piece is connected with a second circuit, then current is led to the second circuit through the other elastic pressing piece, and output voltage is adjusted through an adjuster. And then power is supplied to the heating element through the adjusted current, so that the power of the electric kettle can be conveniently switched according to different use scenes, and the electric kettle can be better suitable for more scenes.
Owner:YUYAO CITY FUDA ELECTRONICS
Device for drawing circles, arcs of circles and measuring lengths on classroom boards or any other magnetic surface.
Device for drawing circles or arcs of circles and measuring lengths on classroom boards or other magnetic surfaces. The invention relates to a device for accurately drawing circles or arcs of circles of selected radii on magnetic surfaces with one hand, and for measuring lengths. The device consists of a magnet (1) into which a peg (2) is screwed, a graduated tape (3) with a hole (4) at the 0 mark, the center of rotation of the tape (3) around the peg (2) at the center of the magnet (1), and a piece (5) that serves as a guide for the writing tool, which can be moved and locked by the user to select the radius of the circles or arcs to be drawn. After selecting the radius, the user inserts their writing tool into the most suitable hole of the two.The user rotates the ribbon (3), stretched around the magnet (1), while keeping the writing tool pressed against the board, to form the desired arc or circle. The graduations on the ribbon (3) also allow the user to measure lengths. The ribbon (3) has two sides graduated with different metric systems to meet the needs of a wide range of users. The device according to the invention is particularly intended for use with magnetic boards used by teachers or anyone with a magnetic surface.
Owner:LE GUEN PIERRE LOUIS-MARIE