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18results 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
Gripping aid for work tool
PendingJP2025160840AWriting connectorsSlippage preventionMechanical engineeringIndustrial engineering
To provide a gripping aid for a work tool that is easy to attach and detach, is less prone to deformation that impairs usability, and is compatible with work tools of different diameters and lengths.SOLUTION: A gripping aid for a work tool for assisting in the gripping of a work tool includes a sheet-like member made of a flexible material and a locking portion provided on the sheet-like member, the locking portion being disposed at a position where the sheet-like member can be maintained folded in half. The present invention provides a simple configuration that can function as a gripping aid for a work tool. Furthermore, since the work tool is sandwiched (wrapped) by the folded sheet-like member, the gripping of the work tool is assisted, making it easy to attach and detach, and less prone to deformation that impairs usability. Furthermore, the tool can be used with a wide range of work tools, regardless of their diameter or length.SELECTED DRAWING: Figure 1
Owner:大江 崇之
Combined multifunctional mathematics teaching instrument
The invention discloses a combined multifunctional mathematics teaching instrument, and relates to the technical field of mathematics teaching, the combined multifunctional mathematics teaching instrument comprises a semicircular protractor, the protractor is provided with angle scale marks, the central point of the protractor is movably connected with a ruler through an I-shaped rotating shaft, the ruler is provided with length scale marks, and the central lines of the protractor and the I-shaped rotating shaft coincide. The part of the I-shaped rotating shaft at the bottom of the protractor is embedded in the protractor. The part, located at the bottom of the protractor, of the I-shaped rotating shaft is embedded into the protractor, the lower surface of the I-shaped rotating shaft and the lower surface of the protractor are coplanar, when an arc line needs to be drawn, the protractor can be attached to a blackboard and can be fixed in a hand pressing mode, or the I-shaped rotating shaft is made of a magnetic attraction material and can be attracted to the blackboard, and therefore the arc line can be drawn conveniently. Subsequent operation is facilitated, and the problem that the accuracy of arc line drawing, straight line drawing and other operations is affected due to the fact that the left portion of the protractor and the rotating plate cannot be attached to the plane is solved.
Owner:LANGFANG NORMAL UNIV
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
Combined drawing tool
ActiveCN223533244USlippage preventionCircular curve drawing instrumentsStraightedgeStructural engineering
The utility model provides a combined drawing tool which comprises a first ruler body, a second ruler body, a fixed suction cup and a connecting device, the second ruler body comprises a semicircular part, a straight ruler part and a connecting part, the connecting part is connected with the fixed suction cup, and the connecting device is connected with the fixed suction cup. The first ruler body covers the second ruler body and intersects with the semicircular part at the circle center position, a hole penetrating through the two ruler bodies is formed in the circle center position, and the two ruler bodies are hinged together through the connecting device and the hole. According to the multifunctional compasses, the compasses, the ruler and the protractor are combined together, so that tools do not need to be replaced frequently during drawing, the operation complexity is reduced, and various drawing tools are combined together, so that the drawing tools are convenient to store and carry.
Owner:XIN DISTRICT JUNIOR HIGH SCHOOL SUCHENG DISTRICT SUQIAN CITY
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
Mathematics teaching drawing device
ActiveCN223574093USlippage preventionCircular curve drawing instrumentsMechanical engineeringLine drawings
The utility model relates to the technical field of teaching drawing devices, in particular to a mathematics teaching drawing device which comprises a line drawing leg, a positioning leg is rotatably connected to the side face of the line drawing leg, a second fixing block is fixedly installed on the bottom face of the line drawing leg, and a fixing assembly is fixedly installed on the side face of the second fixing block. A clamping device is fixedly installed on the other side face of the fixing assembly and comprises a first fixing block, a rotary knob is rotationally connected to the side face of the first fixing block, a sponge cushion is rotationally connected to one end of the rotary knob, and an extension rod is fixedly installed in the first fixing block. The compasses can be flexibly combined with a ruler through structures such as the line drawing leg, the positioning leg and the first round ruler, the frequency of switching drawing tools in the drawing process of a teacher can be reduced, the drawing efficiency is improved, and chalks with different lengths can be fixed more stably and conveniently by arranging structures such as a clamping device, a fixing circular ring and an extension rod.
Owner:BAZHONG VOCATIONAL & TECH COLLEGE
Mathematical coordinate drawing device
The utility model belongs to the technical field of mathematics teaching, and particularly relates to a mathematics coordinate drawing device which comprises a cross, and a drawing device is arranged in the cross. According to the mathematical coordinate drawing device, the installation unit is arranged, a protruding block is pushed to drive a pressing plate to compress a spring, the distance between the pressing plate and a sliding block is increased, then a chalk is placed between the sliding block and the pressing plate, the protruding block is loosened, the chalk is pushed to penetrate through the four limiting frames under the action of the spring to abut against a blackboard, and therefore chalk installation is completed; the drawing device is simple in structure and convenient to install, the drawing efficiency is improved, the problems that chalk installation is tedious and the drawing efficiency is affected in the background technology are solved, the chalk is extruded and fixed through the four limiting frames by arranging the auxiliary unit, shaking of the chalk during drawing is avoided, the drawing quality is improved, and meanwhile the friction force between the limiting frames and the chalk is reduced in cooperation with the rollers; and when the pressing plate extrudes the chalk, the chalk can more easily extend into the blackboard to be in contact with the surface of the blackboard, so that drawing is smoother.
Owner:GUANGZHOU UNIVERSITY
Tracing instrument
The invention relates to a tracing instrument, such as a ruler, set square or protractor comprising:- a handle (P) which comprises a handle body carrying locking feet (PB) equipped with locking structures (B);- a handle receptacle (RP) receiving the locking feet (PB) and the locking structures (B),- a tracing structure fixed to the handle receptacle (RP), comprising at least one tracing rim, the handle (P) being inserted into the handle receptacle (RP) towards a position for locking the tracing instrument on the support by means of the locking structures (B); and released towards a release position unlocks the tracing instrument. According to the invention, the locking structures (B) each comprise a pad receptacle (RPP) equipped with a pad (PP). The invention also relates to a method for manufacturing such a tracing instrument. Abstract figure: Fig. 3
Owner:AINSEBA ABDELKADER
Electromagnetic adsorption scribing ruler convenient to take, place and move
In order to overcome the defects in the prior art, the utility model relates to an electromagnetic adsorption graduated ruler convenient to take, place and move, which comprises a graduated ruler, an electromagnet and a battery, a handle is fixed on the graduated ruler, the battery is arranged in the handle, an upper insulating sleeve and a lower insulating sleeve are respectively sleeved on the handle, and the upper insulating sleeve is sleeved on the lower insulating sleeve. The handle between the upper insulating sleeve and the lower insulating sleeve is also sleeved with an insulating rotating sleeve, the lower edge of the upper insulating sleeve is respectively provided with two upper static contacts, and the positive electrode and the negative electrode of the battery are respectively connected with the two upper static contacts; the upper edge of the lower insulating sleeve is provided with two lower static contacts, the winding wire is connected with the two lower static contacts, two forward-conducting parallel wires and two reverse-conducting staggered wires are embedded in the side wall of one side and the side wall of the other side of the insulating rotating sleeve respectively, the ends of the two forward-conducting parallel wires and the ends of the two reverse-conducting staggered wires are connected with movable contacts respectively, and the insulating rotating sleeve is rotated. The winding wires can be conducted in the forward direction or in the reverse direction or disconnected. The marking device is not prone to remanence, convenient to take, place and move and suitable for marking lines on the surface of a steel workpiece.
Owner:YANKUANG ENERGY GRP CO LTD
Flexible folding ruler with magnetic structure
The flexible folding ruler with the magnetic force structure comprises a ruler body, a connecting rod is fixedly connected to the left side of the ruler body, the end, away from the ruler body, of the connecting rod is fixedly connected with a handheld end, scale marks are fixedly arranged on the surface of the upper end of one side of the ruler body, and the scale marks are fixedly connected with the ruler body. The surface of the lower end of the ruler body is inclined, the thickness of the lower end of the ruler body is smaller than that of the upper end of the ruler body, and the ruler body is made of magnet materials. The measuring instrument is made of a magnet material, can be bent at will, is attached to the surface of an uneven or irregular object, and rapidly and effectively measures the size value needing to be measured. After being used, the magnetic attraction device can be folded and put away without being separated and broken, so that the magnetic attraction device is convenient and fast; the connecting rod is fixedly connected to the left side of the ruler body, the handheld end is arranged on the left side of the connecting rod, the ruler can be used as a bookmark when not used, and the practicability of the ruler is improved through multifunctional use.
Owner:HEBEI JINGCHE RAIL TRANSIT VEHICLE EQUIP CO LTD
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
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