596results about "Writing boards" patented technology

The invention discloses a colored magnetic particle preparation method, a colored magnetic particle, a magnetic microcapsule and a magnetic film, and relates to the technical field of magnetic particle preparation. According to the preparation method, ferric salt and an alkaline substance are adopted, a ferroferric oxide precursor precipitation solution is generated through a coprecipitation method, surface modification is conducted through oleic acid, the dispersity and stability of particles in an organic system are enhanced, a solvent is adopted for washing and drying, and the purity and chemical stability of the particles are further improved; subsequently, mixing the modified nano ferroferric oxide, a dye, a high polymer and a functional additive to obtain the colored magnetic particle. The method has the advantages that the preparation process is simple, and the prepared colored magnetic particles are excellent in dispersity, stability and functionality.

The invention discloses a high-quality teaching system which comprises an integrated support which is hung on a ceiling, a control shaft is integrated on the integrated support, the bottom of the control shaft is connected with a projector shell, the high-quality teaching system further comprises a teaching blackboard, a follow-up display structure is arranged on the teaching blackboard, and the follow-up display structure is connected with the projector shell. A following adjusting structure is arranged between the control shaft and the integrated support. The invention relates to the technical field of teaching, according to the high-quality teaching system, through spatial reconstruction and intelligent collaborative design, the problem of spatial conflict between traditional multimedia equipment and a blackboard is thoroughly solved, the integrated support realizes projection and sound equipment aerial integrated layout, and the wall space is remarkably released; the movable blackboard system and the automatic tracking projection cooperatively operate, so that a projection picture is adaptive to a blackboard writing area in real time; the modular design greatly improves the equipment deployment efficiency, a teacher can realize seamless switching of'blackboards, namely screens' without manual adjustment, and a highly flexible and space-intensive teaching environment is constructed.

The invention relates to the technical field of teaching equipment, in particular to an intelligent teaching instrument for law education, which comprises a shell, a connecting rod and the like, and the shell is fixedly connected with a connecting rod. According to the invention, a whiteboard film is pasted on the surface of the curtain, so that a teacher can directly write on the surface of the curtain by using a whiteboard pen without repeatedly switching between the curtain and a blackboard, and two first electric sliding blocks located on the same abutting plate move in opposite directions and drive a cross connecting rod to unfold, so that the operation is convenient, and the teaching efficiency is improved. The crossed connecting rods drive the abutting plates to be far away from each other, so that the folding plates are gradually pulled and straightened through the abutting plates, the abutting plates and the folding plates are matched to form a whole back plate, and when writing is conducted on the surface of the curtain, the abutting plates and the folding plates can serve as supports, so that sinking deformation of the curtain is avoided; therefore, normal writing operation can be carried out on the curtain.

A folding turnover type modularized multimedia teaching blackboard and light environment system comprises a main body, a control module, blackboard modules and a multimedia display module are arranged on the main body, the multimedia display module is rotationally arranged on the main body, and the blackboard modules are rotationally arranged on the two sides of the multimedia display module. According to the technical scheme, the problem that in the switching process of an existing push-pull type multimedia teaching blackboard, visible blind areas of students are caused is effectively solved, it is ensured that the students at all positions in a classroom can obtain continuous and unshielded visual fields, and reading difficulty caused by the limited visual angles is avoided; meanwhile, due to the turnover layout of the blackboard module, occupation of a writing area is avoided, the space utilization rate of a display area and a writing area is remarkably increased, seamless connection of function switching is achieved, and therefore the overall applicability of the teaching environment is optimized.

The invention belongs to the technical field of intelligent teaching, and particularly relates to a modular intelligent teaching platform which comprises a frame and first rails, the two first rails are arranged in the frame in the transverse direction at intervals, and a plurality of partition plates are arranged on one sides of the two first rails in the frame in the vertical direction. The first rail and the partition plates are arranged in the frame to form a plurality of partition bins, a containing box is installed in each partition bin in a sliding mode, a signal collecting end is arranged on the end face, close to the interior of the frame, of each containing box, a buffer support assembly used for fixing communication equipment is arranged in each containing box, and a fresh air system is arranged in the frame. Through the structural design of the frame, the placement box, the signal acquisition end, the buffer bracket assembly, the fresh air system and the like, various multimedia communication devices can be divided into various modules to be uniformly mounted and arranged, so that the multimedia communication devices and corresponding models of wires can be uniformly arranged and are convenient to disassemble and maintain.

The invention relates to a Parkinson patient writing auxiliary device which comprises a base, and a first protective shell is arranged at the top end of the base. The adjusting mechanism is provided with two power output ends, and the adjusting mechanism is arranged in the first protective shell; the two supporting mechanisms are arranged on the base and are in transmission connection with the two power output ends of the adjusting mechanism correspondingly, and the adjusting mechanism is used for adjusting the heights of the two supporting mechanisms; the fixing plate is hinged to the top ends of the two supporting mechanisms, and a writing board is arranged at the top end of the fixing plate; the forearm fixing mechanism is arranged on one side wall of the fixing plate, and the forearm fixing mechanism is used for fixing the right forearm of the patient. The adjusting mechanism can adjust the heights of the two supporting mechanisms at the same time, the fixing plate and the writing plate are adjusted to the height matched with the height of a patient, the comfort degree of the patient during use is improved, the two supporting mechanisms can be adjusted to different heights, and the fixing plate and the writing plate incline towards the patient by a certain angle; and the comfort degree of the patient during use is further improved.

The present disclosure is directed to a marker pixel wicking apparatus that allows a user to create dimensional pixelated art using a method of applying a colored ink marker directly onto the top white surface of a specifically designed substrate. The substrate has been molded specifically with an array of small vertical flat-topped cylinders covering nearly the entire surface.

To provide an aqueous discoloration body and an aqueous discoloration set capable of extending a maintenance time of an aqueous discoloration image and capable of recognizing whether the aqueous discoloration image is formed with balance by covering with a cover member immediately after forming the aqueous-discolored image by adhering water.SOLUTION: An aqueous discoloration body set comprising an aqueous discoloration sheet 2 having a porous layer in which a low refractive index pigment is fixed in a dispersed state in a binder resin on an upper layer of a colored layer, and a transparent cover member 6 that covers an aqueous discolored image formed by adhesion of water on a surface of the porous layer, suppresses drying of water and delays disappearance of the aqueous discolored image, wherein the transparent cover member is provided with an aqueous discolored body 1 formed by providing a character frame 9 for characters formed on an aqueous discolored sheet and an aqueous adhesion tool forming the aqueous discolored image.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of whiteboards, and in particular to a multifunctional whiteboard, comprising a whiteboard body, wherein a side of the whiteboard body having a writing function is defined as a front side, and the other side corresponding thereto is defined as a rear side. U-shaped brackets are provided on both sides of the whiteboard body so as to be rotatable 360° through a first rotating device, and a book support board for placing books and a page fixing structure for fixing book pages are fixedly provided on the rear side of the whiteboard body. The utility model whiteboard not only has a note-taking function, but can also be used as a reading stand for books, thus realizing multifunctional integration.

The utility model relates to the technical field of electronic whiteboards, in particular to a classroom electronic whiteboard all-in-one machine which comprises a rectangular frame, fixed blackboards fixedly installed on the two sides in the rectangular frame, a first sliding blackboard, a second sliding blackboard and an electronic whiteboard fixed to the middle of the rectangular frame. Two symmetrical sliding groove sets are formed in each of the top and the bottom of the rectangular frame, each sliding groove set comprises two transversely-arranged sliding grooves, guide grooves are formed in the ends of the sliding grooves, chamfers are formed in the opposite sides of the two fixed blackboards, and first sliding columns are fixedly connected to the two sides of the top and the two sides of the bottom of the first sliding blackboard. The sliding blackboard has the advantages that when the sliding blackboards are moved, the fixed blackboards cannot affect movement of the sliding blackboards, so that the two sliding blackboards can be smoothly opened in a sliding mode, when the sliding blackboards horizontally move front and back, the first belt can still achieve the purpose of transmission, and the sliding blackboards can smoothly and synchronously slide to be opened or closed.

The objective of this project is to provide a comprehensive electronic whiteboard system that allows various uses by assembling various devices necessary for realizing the GIGA School Initiative at a relatively low cost while leaving the existing whiteboard as it is. [Solution] A first upper hanger rail 5 is placed along the upper edge of an existing blackboard 1, a first lower hanger rail 6 is placed along its lower edge, a second upper hanger rail 7 is placed along the upper side of the first upper hanger rail 5, and a second lower hanger rail 8 is placed along the lower side of the first lower hanger rail 6, a first sliding frame 11 for attaching an electronic blackboard 15 is hung between the first upper hanger rail 5 and the first lower hanger rail 6, and a second sliding frame 12 for attaching a projection-compatible board 16 and a projector 17 is hung between the second upper hanger rail 7 and the second lower hanger rail 8.

This utility model belongs to the field of water turbine technology, specifically a simulation device for the guide vane opening of a hydropower station turbine. It includes a main model and a protective device. A secondary model is fixedly connected to the inner surface of the main model. The protective device is located on the surface of the main model and includes a placement plate that fits over the surface of the main model. Two rotating plates are rotatably connected to the surface of the placement plate. A fixing block is fixedly connected to the upper surface of the placement plate, and a limit block is rotatably connected to the surface of the fixing block. A writing device is provided on the side wall of the placement plate. The writing device includes two fixing plates whose side walls are fixedly connected to the side wall of the placement plate. A moving block is slidably connected to the inner wall of the fixing plates, and a writing plate is fixedly connected to one end of the two moving blocks that are close to each other. By setting up the entire device, the main model can be supported and protected, reducing the possibility of damage to the main and secondary models. It also facilitates explanation and enhances the teaching effect.

The utility model provides an obtuse-angle sliding blackboard, which includes a main frame, two sliding plates, a linear drive assembly, two angle-changing plates and a first drive assembly. An installation space is formed inside the main frame; the two angle-changing plates are symmetrically arranged on the left and right sides of the installation space, and the angle-changing plates are inclined from the outside to the inside and backward, and the outside of the angle-changing plates is hinged to the main frame; the first drive assembly is arranged on the rear side of the angle-changing plate, and is used to drive the inner end of the angle-changing plate to rotate with its outer end as the rotation axis. The first driving assembly includes a driving plate, a guide frame, a motor assembly and a driving column. The driving plate is connected to the rear side of the variable angle plate, and a guide groove is provided on the driving plate; a driving block and a screw are provided on the upper side of the guide frame, and the driving block is slidably arranged on the guide frame; the screw is arranged at an angle to the guide groove, and the screw passes through the driving block and is threadedly engaged with the driving block; the power output end of the motor assembly is connected to the screw to drive the screw to rotate; the driving column is connected to the driving block and passes through the guide groove, and the driving column is suitable for moving in the guide groove along the extension direction of the screw to drive the variable angle plate to rotate.

The utility model belongs to the field of furniture, specifically a process explanation display stand developed and used based on Internet data, comprising a base frame; a frame body is fixedly connected to the top of the base frame; a plate body is fixedly connected to the middle of the frame body; a bracket is fixedly connected to the top and bottom of the frame body; a driving motor is fixedly connected to the bracket; both ends of the bracket are rotatably connected to a rod body; the output end of the driving motor is fixedly connected to the rod body; a roller shaft is provided between a pair of the rod bodies; by arranging the driving motor, the roller shaft, the rod body and the writing cloth, when in use, relying on the above-mentioned arrangement, the writable space can be greatly increased, and then when explaining the system process, it is convenient to quote the previous content, so that it is convenient for the staff to use it, and then the situation of repeated erasing and writing is reduced.

The invention discloses a multifunctional English teaching device, and particularly relates to the technical field of teaching equipment.The multifunctional English teaching device comprises a moving table and two protection plates, the top of the moving table is fixedly connected with two supporting seats, the two supporting seats are hinged to the same writing board through pin shafts, a moving groove is formed in the top of the moving table, and the two protection plates are arranged in the moving groove. Two sliding grooves are formed in the top of the movable table, two dovetail grooves are formed in the two sides, close to each other, of the two protection plates, and the adjusting assembly comprises two fixing blocks fixedly connected to the rear side of the writing board. Through cooperation of the adjusting assembly and the protection assembly, the device can adjust the height and the rotation angle of the writing board, the inclination degree of the writing board can be flexibly adjusted, it is ensured that each user can find the most suitable writing angle, and therefore the learning efficiency and the writing comfort degree are improved; therefore, writing preferences of different users and diversified teaching scenes can be catered.

The invention discloses a multifunctional portable Chinese teaching board, and relates to the technical field of teaching equipment. The teaching aid comprises a base, a supporting frame is arranged at the top of the base, an adjusting frame is arranged on one side of the supporting frame, and a teaching material plate is arranged in the supporting frame; an adjusting assembly is arranged at the top of the base and comprises a movable shaft, the movable shaft is movably connected between the two sets of teaching material plates, a rotating shaft and a moving shaft are fixedly connected to the two sides of each teaching material plate respectively, supporting shafts are fixedly connected to the top and the bottom of each teaching material plate, and the teaching material plates are rapidly folded through the adjusting assembly. Through the arrangement of the adjusting assembly, after teaching is finished, the moving shaft is manually pushed, the moving shaft pushes the two adjacent teaching material plates to incline with the movable shaft as the axis, the rapid folding function is achieved, meanwhile, the multiple teaching material plates can be folded mutually, the occupied space is reduced, adjustment is flexible, hiding is convenient, and the utilization rate of the classroom space is increased.

Disclosed is a modular educational conference interactive board, which includes a housing and a backboard. A display screen is fixedly installed on the inner wall of the housing. A camera module is fixedly installed on the top end of the housing via a first screw, and an interface module is fixedly installed at the centre of the bottom end of the housing via a second screw. A power supply board and a mainboard are fixedly installed on the inner wall of the backboard. External rails are fixedly connected to both the top and bottom ends of the back side of the housing. Middle rails are slidably connected to the inner walls of the two external rails and inner rails are slidably connected to the inner walls of the two middle rails. The two inner rails are fixedly connected to two ends of the inner wall of the backboard. The sliding arrangement of the rails permits the easy and efficient removal of the backboard from the interactive board for maintenance or upgrades.

The utility model discloses a multi-functional study tower, including tower base, tower top, two sets of first flat mouth hasp subassembly and two sets of second flat mouth hasp subassembly, tower base includes two first side plate, seat plate, first front plate and first table board, tower top includes two second side plate, anti-drop pole, second front plate and second table board, tower top is arranged right above tower base, and the first flat mouth hasp subassembly and the second flat mouth hasp subassembly are arranged right above tower top. The tower base is hinged with the tower top; the height of the first side plate is the same as that of the second side plate; the two sets of first flat mouth hasp assemblies are arranged on the transverse outer side of the learning tower and located at the rear end of the combination portion of the first side plate and the second side plate. The two sets of second flat-mouth hasp assemblies are arranged on the transverse outer sides of the multifunctional learning tower respectively, the first parts of the second flat-mouth hasp assemblies are arranged on the lower portion of the front end of the first side plate, and the second parts of the second flat-mouth hasp assemblies are arranged on the upper portion of the front end of the second side plate. The tower base and the tower top are connected in a hanging mode through the four hasp assemblies, the process of mutual conversion between the learning tower and the desk is fast and convenient, and connection is firm.

The utility model relates to the technical field of analysis and display devices for management, specifically an analysis and display device for enterprise talent management, comprising a bracket, an upper end face of the bracket is fixedly connected with a horizontal plate, an upper end face of the horizontal plate is installed with a display screen, the right end of the horizontal plate is fixedly connected with a vertical plate, an upper end face of the vertical plate is fixedly connected with a support plate, a lower end face of the support plate is fixedly connected with two left and right distributed first motors and second motors, output ends of the first motor and the second motor both pass through the support plate and are respectively fixedly connected with a first gear and a second gear, when the display screen is used, two writing boards can be used to assist staff in marking, when the display screen is not used, the two writing boards are moved to the front and rear ends of the display screen to protect the display screen, so as to achieve the purpose of facilitating staff to additionally mark analysis content and conveniently protect the display screen, and having strong practicality.

The present invention discloses a smart blackboard system, comprising: a board surface for writing and presenting electronic images; slide rails vertically arranged on both sides of the board surface; a cross beam horizontally arranged between a pair of the slide rails and vertically slidably connected to the slide rails; an eraser arranged inside the cross beam and used for contacting the board surface; and a lead screw vertically arranged in the slide rails and threadedly connected to the cross beam. The present invention has the following advantages and effects: By providing a highly automated eraser, the wiping of the board surface is automatically realized, eliminating the need for manual blackboard wiping, preventing dust from contacting the hands, and also avoiding the inhalation of dust at close range, thus protecting the health of teachers and achieving the effect of facilitating teaching.

The application relates to the technical field of electronic paper, in particular to an electronic paper blackboard device and a control method. A controller is electrically connected with the electronic paper blackboard. An electronic chalk is provided with a first magnet, and the first magnet is detachably connected with the electronic chalk. The electronic chalk is used for changing the magnetic pole direction of a magnetic electronic ink material through the first magnet, so that the color of the magnetic electronic ink material is changed to form written content. A passive blackboard eraser is provided with a second magnet, and the second magnet is detachably connected with the passive blackboard eraser. The passive blackboard eraser is used for resetting the magnetic pole direction of the magnetic electronic ink material through the second magnet, so that the corresponding written content is erased, thereby realizing the traditional blackboard function. The electronic paper blackboard can be conveniently written and erased, and the reflection of the electronic paper blackboard does not affect the vision of children, which is beneficial to human health.

The invention provides an information management statistical device for financial accounting information, and relates to the technical field of financial accounting information management, and the information management statistical device comprises a placement cabinet, a workbench arranged at the top end of the placement cabinet, a switching part penetrating and extending into the placement cabinet, and a multifunctional bearing platform connected with the switching part; the interior of the placement cabinet is hollow and is provided with a preset accommodating space, and one side of the placement cabinet is hinged to the dustproof door; a rectangular through hole is formed in the middle of the workbench, and a protection plate is arranged on the edge of the workbench. The multifunctional bearing table is located in the containing space and can extend out of the rectangular through hole to be flush with the workbench, and a preset working distance is directly reserved between the multifunctional bearing table and the rectangular through hole. Smooth switching of the multifunctional bearing tables can be guaranteed, mutual interference is avoided, and the overall space utilization rate is increased; and a digital statistical component and a paper statistical component are integrated, so that the working efficiency is improved, and the financial accounting information statistical work is ensured to be stably carried out.

The utility model relates to the technical field of office use equipment, in particular to a conference blackboard which comprises a cross-shaped bottom plate, supporting legs integrally formed with the bottom plate are arranged at the four corners of the bottom of the bottom plate, a fixed column is fixedly installed at the top of the bottom plate and is of a hollow structure, and a movable column is installed in the fixed column in a sliding mode. The blackboard has the advantages that the blackboard can be conveniently detached and replaced with a new blackboard, the blackboard can be conveniently rotated, the two faces of the blackboard can be conveniently utilized, and the blackboard is convenient to use, convenient to use and high in practicability. And the use effect can be effectively improved.

The utility model discloses an intelligent blackboard for multi-screen interaction, and relates to the technical field of intelligent blackboards. The intelligent display device comprises a wall surface, an intelligent display screen is fixedly mounted on one side of the wall surface, writing boards are arranged on the portions, located on the two sides of the intelligent display screen, of one side of the wall surface, a mounting plate is fixedly connected to the portion, located above the intelligent display screen, of one side of the wall surface, and a first sliding groove is formed in the top end of the mounting plate; second sliding grooves are formed in the positions, located on the two sides of the first sliding groove, of the top end of the mounting plate, supporting assemblies are arranged in the first sliding groove and the second sliding grooves, and a rack is rotationally connected between the top ends of the two corresponding supporting assemblies through a connecting piece. When the intelligent display screen does not need to be used, the two writing boards are controlled to be closed, the writing boards are used for protecting the intelligent display screen, dust is prevented from being accumulated on the screen, the watching effect is prevented from being affected, meanwhile, economic losses caused by damage to the intelligent display screen are prevented, and the safety performance of the equipment is further improved.

A display board ballistic shield to protect students from gunfire includes a U-shaped base frame comprising a vertically oriented rectangular frame having two vertical posts, a top, and a bottom. The frame defines a vertical plane and a window area therethrough. A base leg having two ends is affixed to each side of the frame at a bottom thereof, each base leg perpendicularly oriented to the plane defined by the frame. A caster is affixed proximate to the ends of each of the base legs. A first ballistic resistant panel has a rectangular metal frame and is mounted within a bottom portion of the frame and coplanar therewith. A second ballistic resistant panel has a rectangular metal frame and is mounted within a top portion of the frame. The second ballistic resistant panel also includes a dry erase display board abutting in layered fashion the second ballistic resistant panel.

The utility model provides a rapid patient opinion feedback display device, and belongs to the technical field of display devices. Comprising a display device body, a feedback box is fixedly connected to one side of the display device body, an observation window is rotatably connected to the interior of the display device body, a supporting rod is rotatably connected to the outer wall of the observation window, and a threaded part is connected to the interior of the supporting rod through threads; the fixing assembly is used for assisting a worker in fixing and dismantling the notice, and the fixing assembly is connected with the display device body. Through the arrangement of the fixing assembly, after a worker opens the observation window, notices of different sizes can be quickly fixed and dismounted through the placing plate, the hook and the connecting rod, and single notices are separately dismounted through the broken groove and the hook, so that the notice fixing and dismounting efficiency of the worker is improved, and the labor intensity of the worker is reduced. And the bulletin using flexibility is improved, operation is easy and convenient, and a worker can use the bulletin conveniently.

The utility model discloses a multifunctional conference display rack, which relates to the technical field of financial economy and comprises an adjusting mechanism, and a display mechanism is arranged on the top surface of the adjusting mechanism. The writing board is driven to slide in a group of sliding rails by pulling the handle, when the writing board slides, the front face of the display board is opened, the two limiting blocks are driven to move, and when the writing board drives the limiting blocks to slide to the same line with the limiting grooves, the reset springs stretch to drive the clamping blocks to stretch out of the limiting blocks and enter the limiting grooves. The two clamping blocks enter the two limiting grooves respectively to fix the position of the writing board, one side of each limiting groove is in an arc shape, a user can connect the electronic equipment with a displayer, conference content can be conveniently displayed, meanwhile, the writing board brings convenience to the user for writing, and if more content is written, the writing board is convenient to use. And the other handle can be pulled to drive the other writing board to slide out of the display board, so that the writing area is increased, and a user can use the display board conveniently.

The utility model provides a multifunctional child building block table, which belongs to the technical field of child toys and comprises a table body, a drawer, a chair, a first panel and a second panel. The table body comprises two side plates which are symmetrically arranged, the drawer is located between the two side plates, the upper end of the drawer is open, a containing space is formed below the drawer, and the chair can be placed in the containing space from the movable side of the table body; a plurality of limiting slideways are formed in the inner sides of the side plates, and the first panel is used as a first decorative top plate or drawing plate through the limiting slideways; and the second panel is used as a second decorative top plate or a building block table plate or a plane table plate by virtue of the limiting slideways. The multifunctional child building block table provided by the utility model is convenient to store, achieves the purpose of realizing multiple functions on the same building block table, and is convenient for children to use.

The invention discloses an embedded one-key recording and broadcasting device based on an intelligent blackboard, relates to the technical field of teaching aids, and aims to solve the technical problem that recording and broadcasting equipment is mounted outside the intelligent blackboard and is easy to collide and damage when people walk, the embedded one-key recording and broadcasting device comprises a blackboard frame, and the inner wall of one side of the blackboard frame is fixedly connected with a display screen. One side of the display screen is fixedly connected with a placement frame, and the placement frame is movably provided with a recording and broadcasting mechanism; the recording and broadcasting mechanism comprises a first hinge plate; the first hinge plates are movably connected to the inner walls of the two sides of the placement frame through first insertion rods. An observation assembly is fixedly arranged in the blackboard frame and comprises a cleaning unit. The cleaning unit is movably arranged in the blackboard frame. By arranging the recording and broadcasting mechanism, recording and broadcasting equipment is embedded in the blackboard and can be independently adjusted, the occupied space is reduced, the situation that the recording and broadcasting equipment is damaged and normal use of the equipment is affected due to walking of personnel is avoided, stability can be improved, and the use effect can be improved.