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65 results about "Paperweight" patented technology

A paperweight is a small solid object heavy enough (usually a glass marble), when placed on top of papers, to keep them from blowing away in a breeze or from moving under the strokes of a painting brush (as with Japanese calligraphy). While any object (like a stone) can serve as a paperweight, decorative paperweights of glass are produced, either by individual artisans or factories, usually in limited editions, and are collected as works of fine glass art, some of which are exhibited in museums. First produced in about 1845, particularly in France, such decorative paperweights declined in popularity before undergoing a revival in the mid-twentieth century.

Calligraphy black ink tracing writing practice table plate

The invention discloses a calligraphy black ink tracing writing practice table plate which comprises a lamp box, an electric light source, a table surface plate as well as paperweights, wherein the table surface plate is made of light permeable glass; one side of the table surface plate is mounted on a lamp box frame through hinges and fasteners and is placed on a light permeable plate of the lamp box; two paperweights are placed on the table surface plate; two ends of the paperweights are arranged on edges of two sides of the table surface plate in a clamping manner; and the paperweights can be moved transversely in parallel on the table surface plate. According to the calligraphy black ink tracing writing practice table plate disclosed by the invention, paper with written or printed words is pressed between the table surface plate and the light permeable plate of the lamp box, a light source is close to a table surface, intense light permeates the table surface plate, and then clear words without distortion can be seen; in addition, the writing practice table plate is convenient to use and operate, and habits of a calligraphy trainee can be met; and transparent thin paper can be replaced by common paper, so that the calligraphy practice cost can be effectively lowered. If ground support plates are mounted on the left side and the right side of the writing practice table plate, the writing practice table plate can be turned into a calligraphy black ink tracing writing practice table.
Owner:李佳妮

Method for manufacturing paleontological fossil rubbing

A method for manufacturing a paleontological fossil rubbing is characterized in that the surface of a fossil is cleaned up, the fossil is flatly placed on a table top, the surface of the fossil is uniformly coated with hydrosol, and a protection film capable of reflecting grain of the fossil is formed on the surface of the fossil; a dabber dipped with mineral substance dye of Chinese painting is dipped in the non-grain part of the surface of the protection film, and the surface of the protection film is immediately coated with Chinese art paper and slightly rubbed with the dabber; one side of the Chinese art paper is pressed through a paperweight and cannot move, the other side of the Chinese art paper is opened, the definition of the fossil grain on the rubbing is observed, and if the fossil grain is fuzzy, the part, corresponding to the fuzzy part of the rubbing, of the protection film is coated with the mineral substance dye of Chinese painting until the grain on the surface of the rubbing is clear. According to the method, the grain on the surface of the fossil is not influenced, the fossil is protected, the fossil rubbing can be repeatedly manufactured, the rubbing is clearer in a replication mode, and the surface is more vivid.
Owner:梁晓东

Multifunctional laser paperweight and usage method thereof

The invention discloses a multifunctional laser paperweight and a usage method thereof and relates to the field of calligraphy stationery. A plurality of lasers with high optical penetrability are adopted and distributed evenly, so that the multifunctional laser paperweight has both a paperweight function and a paper laser grid division function at the same time, and a plurality of grid division choices with different specifications are provided for a user. Therefore, usage is convenient, time and labor are saved, the influences of paper folding and creasing on calligraphy works are avoided, and thus the difficulty of the writing page layout is lowered greatly. According to the main points of the technical scheme, a switch is arranged on one side face of a cuboid-shaped paperweight body, a plurality of laser holes are distributed along the long lower edge of the paperweight body evenly and are in one-to-one correspondence with the lasers distributed in the paperweight body, and all the lasers are connected with a power source and a controller through wires; and a specification selector is arranged on the other side face of the paperweight body and connected with the controller, and the controller is connected with the power source. The multifunctional laser paperweight and the usage method thereof are mainly used for even paper division.
Owner:FUJIAN AGRI & FORESTRY UNIV

Tool box for constructional engineering field work measurement

The invention discloses a tool box for constructional engineering field work measurement, and relates to the technical field of tool box devices for measurement. The tool box comprises a box body, wherein a pull rod is arranged on the outer wall of the box body, a folding plate is arranged on the side wall of the box body, a handle is hinged to the upper end of the box body, a first partition plate is arranged in a first drawer to divide the first drawer into a survey pin cavity and a measuring tape cavity, a survey pin fixing piece is arranged in the survey pin cavity, and a measuring tape fixing piece is arranged in the measuring tape cavity; a positioning block is arranged in the middle of a second drawer, a guide plate is arranged at the upper end of the positioning block, and a plurality of elastic pressing assemblies are arranged on the periphery of the positioning block and located below the guide plate; and a third drawer is provided with a second partition plate which dividesthe third drawer into a drawing cavity and a pencil cavity, a paperweight piece is arranged in the drawing cavity, and a detachable storage bag is arranged in the pencil cavity. A user can conveniently carry various different measuring tools, the tools do not collide with one another, and the tools are prevented from being damaged.
Owner:HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING

Paperweight for setting seal

The invention relates to a paperweight for setting a seal. The paperweight comprises a paperweight pressing plate, wherein a connecting groove is formed in the upper part of the paperweight pressing plate. The paperweight is characterized in that the connecting groove is connected with a seal box; a seal slot and an inkpad slot are formed in the seal box; a connecting strip connected with the connecting groove is arranged at the bottom of the seal box. The paperweight disclosed by the invention is simple in structure and convenient to use, and the space can be effectively saved.
Owner:方小玲

Intelligent Chinese calligraphy brush pen and paperweight suite

InactiveCN106427293AWrite freelyWriting funPaper-weightsOther pensEngineeringMicro motor
The invention discloses an intelligent Chinese calligraphy brush pen and paperweight suite. The intelligent Chinese calligraphy brush pen and paperweight suite comprises a penholder, a pen point, an integrated circuit board and a paperweight body. The lower end of the penholder is fixedly connected with the pen point. The integrated circuit board and a battery are fixed inside the penholder. The upper end of the penholder is sealed by a pen cap. A fixing support is arranged inside the penholder. An ink container is fixed on the fixing support. The lower end of the ink container is connected with the pen point through a conduit. The upper end of the ink container is sealed with a screw. A micro motor is fixed to the lower portion of the ink container. According to the intelligent Chinese calligraphy brush pen and paperweight suite, the flow rate of ink is intelligently controlled through a processor and a humidity sensor, the ink rate at the pen point is just right through precise control, and a user can write with facility; a multimedia device is integrated on a paperweight, a brush pen can be stored conveniently, and more joy is taken into writing; and the intelligent Chinese calligraphy brush pen and paperweight suite is multifunctional, people can realize the great charm of modern science and technology and traditional culture, more people can lean and love calligraphy, and thus the traditional culture of Chinese nation is developed and expanded.
Owner:新昌县厚道机械有限公司

Paper-weight knife with lucky words stamp

The invention discloses a paperweight knife with prints of lucky words, which consists of a blade, a cutting head, a flute and paperweight and is characterized in that the cutting head is arranged into the flute of the paperweight and connected with the blade; the angle between the cutting head and the blade is 90 degrees. When in use, the cutting head is pulled out of the paperweight flute and then the blade is pulled down in the angle of 90 degrees, and then the knife can be used for cutting the paper and the paper becomes paperweight after the recovery. The knife has the advantages of simpler structure, lower cost and stronger practicality.
Owner:卢心东

Multifunctional sketching and drawing board

The multifunctional sketch drawing board of the present invention belongs to the field of drawing tools, and is characterized in that it comprises a left drawing board, a right drawing board, a middle drawing board, a board body seal, a spring fastener inside the seal, a spring button hole on the fastener, a spring button hole inside the seal, a spring, Grooves, convex grooves, magnet strips, frames, magnetic paperweights, shrapnel, shrapnel clips, corners, corner spring fasteners, fastener card holes, supporting feet, drawing board sealing grooves, drawing boards are composed of several drawing boards, used each other The folding of the drawing board is realized by the internal spring fasteners of the seals between the grooves, the convex grooves and the upper and lower end seals. The present invention is suitable for various forms such as painting, sketching, watercolor, gouache, Chinese painting, oil painting and the like as a drawing board. The invention has a simple structure, can be folded and stored when being carried, and is easy to carry, and can be used as other backing boards besides being used as a drawing board.
Owner:尹国英

Wood-plastic paperweight provided with steel core

InactiveCN105398267AGood anti-corrosion and anti-shatter performanceEasy accessPaper-weightsPaper sheetSlip resistance
The invention discloses a wood-plastic paperweight provided with a steel core. The wood-plastic paperweight provided with the steel core comprises a pressing block (1). The wood-plastic paperweight provided with the steel core is characterized in that the pressing block (1) comprises the steel core (12) and a wood-plastic cladding layer (11) which is arranged on the outer surface of the co-extruded steel core (12); the upper surface and the lower surface of the pressing block (1) are each provided with a plurality of triangular teeth (111), grooves (112) are formed in the four corners of the pressing block (1) respectively, and arc-shaped grooves (113) are symmetrically formed in the left side face and the right side face of the pressing block (1); the steel core (12) can be flat steel or round steel or figured steel with a groove in the surface. The wood-plastic paperweight provided with the steel core is novel in structure, environmentally friendly, attractive, excellent in corrosion resistance, breakage resistance and slip resistance, low in cost and long in service life.
Owner:HUANGSHI ZHIYUN ELECTROMECHANICAL TECH INST

Split paperweight block

The invention relates to a split paperweight block which is characterized by consisting of four equilateral triangle bodies, wherein one connection magnet is arranged at each inner connection edge of each equilateral triangle body; the four equilateral triangle bodies are connected to form a rectangular body. The split paperweight block has the beneficial effects that the split paperweight block is firmly connected; the split paperweight block is firmly connected without being loosened when in use or not in use. Moreover, each sub connector is of a triangular shape and also can very stably press paper when in use singly.
Owner:方小玲

Apparatus and method for reading ID documents in an open environment

An imaging apparatus for imaging a document in an open environment or a closed environment including processor, memory, an imaging device having at least one image sensor and a direct light-source, a bench having an upper surface and a document holding mechanism having at least one paperweight. The paperweights are disposed in respective fitted hollow columns formed in the document holding mechanism, extending generally perpendicular, upwardly from the upper surface of the bench, wherein the respective fitted hollow column facilitates free up and down motion of the paperweight inside, and wherein the document may be pushed underneath said paperweight to thereby flatten the document.
Owner:ACUANT

Multifunctional paperweight

The invention discloses a multifunctional paperweight, which comprises a paperweight body. Two first magnetic blocks are arranged at the left end of the paperweight body; a first concave hole is formed on the paperweight body; a left paperweight head is arranged on the left side of the paperweight body and is provided with second magnetic blocks; the second magnetic blocks and the first magnetic blocks are arranged in a mode that opposites attract; a universal serial bus (USB) connector is arranged at the left paperweight head corresponding to the first concave hole; the USB connector is connected with a USB flash disk; the USB flash disk is arranged in the left paperweight head; third magnetic blocks 14 are arranged at the right end of the paperweight body; a right paperweight body is arranged on the right side of the paperweight body; fourth magnetic blocks are arranged on the right paperweight head; the fourth magnetic blocks and the third magnetic blocks are arranged in a mode that opposites attract; and a second concave hole is formed on the right paperweight head. The multifunctional paperweight is unique in style, the left and right paperweight heads at two ends of the paperweight body can be detached from the paperweight body, the USB flash disk on the left paperweight head can store electronic files, and the detached left and right paperweight heads can be combined to form a small paperweight.
Owner:李洁

Paper-weight knife

The invention discloses a paperweight knife, which consists of a blade, a cutting head, a flute and paperweight and is characterized in that the cutting head is arranged into the flute of the paperweight and connected with the blade; the angle between the cutting head and the blade is 90 degrees. When in use, the cutting head is pulled out of the paperweight flute and then the blade is pulled down in the angle of 90 degrees, and then the knife can be used for cutting the paper and the paper becomes paperweight after the recovery. The knife has the advantages of simpler structure, lower cost and stronger practicality.
Owner:卢心东

A cutting plotter with a paper press

The invention discloses a character carving machine with a paperweight. A bracket is installed above a base plate through a sliding rail. A carving knife device is installed on the bracket through a guide rail and moves in the X direction and the Y direction. The magnetic field strength is controlled by controlling energizing of a coil, so that a carving knife frame moves in the Z direction. The paperweight comprises a plurality of paper pressing mechanisms which are installed on one side of the carving knife device through a cross beam parallel to the guide rail. The paper pressing mechanisms are optimally designed, so that point-surface contact positioning is conducted between the paper pressing mechanisms and the cross beam, and the installation precision is greatly improved. By means of the optimally designed character carving machine with the paperweight, initial position positioning is completed by moving the bracket; a positioning piece is rotated through a handle, so that the paper pressing mechanisms are located in a falling state to position a to-be-carved material; and a carving knife of the carving knife device moves in the Z-axis direction, in the carving process, the carving knife device moves in the Y-axis direction, and the paper pressing mechanisms effectively prevent pressed paper from moving, so that the carving precision is improved.
Owner:HEFEI KAXING DIGITAL CONTROL EQUIP

Paperweight provided with pen holding pipe

The invention provides a paperweight provided with a pen holding pipe. The pen holding pipe is arranged on a paperweight bock body for paperweight using. During study and work, when pages need to be pressed by a paperweight block so as to be prevented from being blown by wind or being naturally folded, a required pen can be inserted in a pen holder; by combining the pen holder and the paperweight block into a whole, a product can be beautified, and the use functions of the paperweight block are enriched.
Owner:XIANGYANG CITY XIANGZHOU DISTRICT NO 4 HIGH SCHOOL

A double-head grinding device for souvenir book town processing

The invention provides a double-end polishing device for souvenir paperweight processing. The double-end polishing device for souvenir paperweight processing comprises a working table, a first installing plate, a second installing plate, a first clamping mechanism, a second clamping mechanism, a first polishing mechanism, a second polishing mechanism, a first drive mechanism, a second drive mechanism and a third drive mechanism. The first clamping mechanism and the second clamping mechanism are used for clamping a paperweight to be polished; and the first drive mechanism drives the first polishing mechanism and the second polishing mechanism to slide along a first guide rail and a second guide rail so as to carry out double-end polishing processing on the paperweight clamped by the first clamping mechanism and the second clamping mechanism. The double-end polishing device for souvenir paperweight processing provided by the invention can be used for continuously carrying out double-endpolishing processing on the paperweight, and has a good polishing effect and high work efficiency.
Owner:安徽合肥技师学院

Folding paperweight

InactiveCN104210295ASolve the problem of occupying areaPaper-weightsEngineeringPhysics
The invention provides a folding paperweight which comprises a first paperweight body, a second paperweight body and a connecting device arranged between the first paperweight body and the second paperweight body. The folding paperweight is characterized in that the connecting device is an arc-shaped connecting block; two ends of the connecting blocks are respectively articulated at the lower end of the first paperweight body and the upper end of the second paperweight body; in order to ensure the connection steadiness, the connecting block is further arranged on the other sides of the first paperweight body and the second paperweight body. The folding paperweight has the beneficial effects that the paperweight can be folded and unfolded freely so as to adapt to a writing paperweight function of a large-area painting and calligraphy book or a small-area painting and calligraphy book, and does not occupy a painting and calligraphy place.
Owner:左颖

Paperweight with handle

The invention discloses a paperweight with a handle. The paperweight comprises a paperweight body and the handle. The paperweight body is rectangular. The handle is arranged in the middle of the paperweight body. The paperweight has the beneficial effects of being simple in structure and convenient and comfortable to use.
Owner:冯先菊

Paperweight with eye-protection panel light

PendingCN106945441APrevent creative influenceBroad market shareLighting support devicesElectric circuit arrangementsProtecting eyeEffect light
The invention discloses a paperweight with an eye-protection panel light. The paperweight comprises a paperweight body, mounting rods and LED lamp caps. One side of the interior of the paperweight body is of a hollow structure. One ends of the mounting rods penetrate through the side wall of one end of the paperweight body and are connected with the inner side wall of the other end of the paperweight body. Clamping sleeves are fixedly connected to the mounting rods in a sleeving mode. Clamping ports are formed in the outer sides of the clamping sleeves. Clamping blocks matched with the clamping ports re arranged on the other sides of positioning plates. The vertical section of each positioning plate is in a semicircle shape. The clamping blocks are inserted and connected into the clamping ports. The demand of creation for lights can be met, the situation that lights are too strong and stimulate eyes of users, and consequently creation is influenced can be prevented, and the number of the turned-on LED lamp caps can be chosen according to the actual surrounding conditions; and an AA battery is used for providing electricity, repeated charging and using can be achieved, energy is saved, the environment is protected, and the paperweight has a high market share.
Owner:中山市德润名高信息技术有限公司

Intelligent writing brush writing and evaluation system and application method

PendingCN114801552AFind and correct problems with incorrect pen holding postureAdd funWriting implementsPaper-weightsEvaluation resultEngineering
The invention discloses an intelligent writing brush writing and evaluation system and an application method.The intelligent writing brush writing and evaluation system comprises an intelligent writing device, an intelligent writing brush subsystem and a writing evaluation system, and the intelligent writing device can detect the pen holding posture of a beginner and conduct visual prompt according to the detection result by installing a posture detection module; the writing evaluation system uses a visual method to carry out stroke comparison on the picture contours of the standard fonts and the fonts of the beginner, and gives out the writing stroke evaluation of the beginner according to the comparison result. By means of the intelligent writing brush, the problem that the writing brush holding posture is not correct can be found and corrected in time, meanwhile, through the paperweight system and the writing evaluation display system, the font and the stroke of the written font can be compared with the standard font, and the evaluation result is displayed. And the interestingness of the calligraphy beginner on calligraphy practice is improved.
Owner:JIANGSU UNIV

Auxiliary equipment based on writing robot

The invention discloses auxiliary equipment based on a writing robot. The auxiliary equipment comprises a display stand, a laying device is arranged on the upper side of the display stand, a paperweight device is arranged on the upper side of the laying device, and a collecting device is arranged on the lower side of the display stand. According to the equipment, in the demonstration process, whenrice paper needs to be replaced, the equipment can be started in a safe area, then the rice paper on a demonstration face is replaced, the process is high in automation degree, personnel do not needto enter a demonstration area, the personnel injury risk is reduced, meanwhile, mechanical replacement is achieved, shutdown and restart are not needed, the demonstration efficiency of the equipment can be improved, and the experience of visitors of different batches can be improved.
Owner:WEIFANG YUBEI STATIONERY CO LTD

Multifunctional paperweight

The invention provides a multifunctional paperweight. The multifunctional paperweight comprises a paperweight body of a cylindrical structure. An object holding groove is formed in the top of the paperweight body, and a mirror surface capable of conducting imaging serves as the bottom surface of the paperweight body. A smooth chamfer is arranged on the outline edge of the paperweight body. The object holding groove is arranged close to the edge of the paperweight body, a fixing hole is formed in the other side, and a supporting rod used for fixing an object inside the object holding groove is placed inside the fixing hole. According to the paperweight body, the functions of a storage rack, a hand playing piece, a mirror and the like are added to a common paperweight, and the multifunctionality and practicality of the paperweight can be effectively improved. The multifunctional paperweight is made from large-density and high-hardness metal materials, achieves line coherence, is small and exquisite and has certain ornamental and collection value.
Owner:GUILIN LYUYUAN TECH CO LTD

Calligraphy teaching equipment

The invention relates to the technical field of teaching equipment, in particular to calligraphy teaching equipment, which comprises a teaching computer and a writing device, and the teaching computercomprises a first display screen, and the first display screen is in signal connection with a teaching server through a host; a desktop is provided with a mounting port in front of the first displayscreen, the writing device comprises a second display screen, the second display screen is mounted in the mounting port, a plurality of magnetic stripes are embedded in the desktop around the mountingport, paperweights are arranged on the magnetic stripes, and opposite magnetic stripes opposite to the magnetic stripes embedded in the desktop in magnetism are arranged in the paperweights. And themounting port is provided with a copying glass plate above the second display screen. According to the invention, teaching tasks of teachers can be satisfied, students can be helped to practice calligraphy well, and especially, the students can be helped to copy and practice calligraphy according to the sequence of character strokes through the second display screen, so that the learning quality of the students is greatly improved.
Owner:SHANDONG POLYTECHNIC COLLEGE

Multifunctional table lamp

ActiveCN108458271AAchieve strong and weak changesSpatial adjustmentLighting support devicesElectric circuit arrangementsLight flashesEngineering
The invention discloses a multifunctional table lamp. The lamp comprises a lamp base seat system, a bottom plate lifting system and a bookshelf system. The multifunctional table lamp has the advantages that the bookshelf system is used for connecting an axis C and an axis D with a track A through a connecting piece, and screw rods and nuts are arranged on the connecting piece; the screw rods and the nuts can control the height of an axis B so as to control the inclination angle of a bookshelf, the connecting piece can be kept in a horizontal position due to combined action of the axis C and the axis D on the connecting piece, so that the connecting piece can be kept stable when the connecting piece works, and a user can adjust the state of the connecting piece to the most appropriate stateconveniently; a bottom plate lifting system drives connecting rods to rotate by adjusting the position of a gear part, so that the distance between an upper bottom plate and a lower bottom plate is adjusted, the function of paperweight can be achieved, and meanwhile, the overall height of the table lamp can be adjusted; and the lamp base seat system comprises a light flash alarm clock button, thealarm clock function can be set, the light function of the table lamp is combined, so that the intensity of light can be changed, a user can be reminded, and the disturbance cannot be caused.
Owner:浙江龙腾电工器材有限公司

Portable paperweight

The invention discloses a portable paperweight. The portable paperweight includes a triangular plate which is of an isosceles triangle structure of which the vertex is arranged downwards; the portablepaperweight further includes a balancing weight; the two waists of the isosceles triangle structure of the triangular plate are arcs bent inwards, and the balancing weight is connected with one sideface of the triangular plate. The portable paperweight has the advantages of being small and exquisite in appearance and size, relatively low in dead weight, relatively low in production cost and suitable for being taken along.
Owner:丁茂明

Aspheric surface paperweight magnifying lens and manufacturing method thereof

The invention provides an aspheric surface paperweight magnifying lens and a manufacturing method thereof. The aspheric surface paperweight magnifying lens comprises an aspheric surface paperweight magnifying lens body and a metal ferrule arranged on the exterior of the aspheric surface paperweight magnifying lens body, and the outer diameter of the aspheric surface paperweight magnifying lens body is equal to the inner diameter of the metal ferrule. The aspheric surface paperweight magnifying lens has the advantages that the aspheric surface paperweight magnifying lens is simple in structure, reasonable in design, firm, reliable, attractive and elegance in appearance, and large in file magnifying power, magnified characters or images do not deform, the observation range is large, and the aspheric surface paperweight magnifying lens is suitable for being used as a paperweight.
Owner:南阳乐恩光电有限公司

Character carving machine with paperweight

The invention discloses a character carving machine with a paperweight. A bracket is installed above a base plate through a sliding rail. A carving knife device is installed on the bracket through a guide rail and moves in the X direction and the Y direction. The magnetic field strength is controlled by controlling energizing of a coil, so that a carving knife frame moves in the Z direction. The paperweight comprises a plurality of paper pressing mechanisms which are installed on one side of the carving knife device through a cross beam parallel to the guide rail. The paper pressing mechanisms are optimally designed, so that point-surface contact positioning is conducted between the paper pressing mechanisms and the cross beam, and the installation precision is greatly improved. By means of the optimally designed character carving machine with the paperweight, initial position positioning is completed by moving the bracket; a positioning piece is rotated through a handle, so that the paper pressing mechanisms are located in a falling state to position a to-be-carved material; and a carving knife of the carving knife device moves in the Z-axis direction, in the carving process, the carving knife device moves in the Y-axis direction, and the paper pressing mechanisms effectively prevent pressed paper from moving, so that the carving precision is improved.
Owner:HEFEI KAXING DIGITAL CONTROL EQUIP

A kind of aspheric paperweight magnifying glass and preparation method thereof

The invention belongs to an aspherical paperweight magnifying glass and a preparation method thereof; it comprises an aspherical magnifying glass lens and a metal ferrule arranged outside the aspherical magnifying glass lens, the outer diameter of the aspherical magnifying glass lens is equal to the inner diameter of the metal ferrule; The utility model has the advantages of simple structure, reasonable design, firmness and reliability, beautiful appearance, large file magnification, no deformation of the enlarged text or image, large observation range and suitable for use as a paperweight.
Owner:南阳乐恩光电有限公司

Paper-weight knife

The invention discloses a paperweight knife, belonging to the technical field of calligraphic art articles and consisting of a pull port, a blade, a cutting head, a flute and paperweight. The invention is characterized in that the cutting head is arranged into the paperweight flute and connected with the blade; the pull port is positioned on the blade; when in use, force is imposed on the cutting head through the pull port; the cutting head is pulled out of the paperweight flute and then pulled down in the angle of 90 degrees; and then the knife can be used for cutting the paper and the paper becomes paperweight after the recovery. The knife has the advantages of simpler structure, lower cost and stronger practicality.
Owner:卢心东
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