84results about How to "Convenient teaching demonstration" patented technology

The invention relates to the technical field of plane design teaching equipment, and discloses a plane design plate model teaching display device which comprises a base. The top end of the base is fixedly connected with the bottom end of a supporting sleeve, a fixed shaft is movably connected into the telescopic supporting sleeve in a sleeving manner, the bottom end of the fixed shaft is movably connected with the bottom end of an inner cavity of the base, a driven wheel is fixedly connected onto the outer wall of the fixed shaft in a sleeving manner and positioned inside the base, the drivenwheel is in transmission connection with a driving wheel through a conveying belt, and the driving wheel is fixedly connected onto an output shaft of a driving motor in a sleeving manner. According tothe plane design plate model teaching display device, the driving motor drives the driven wheel and the driving wheel to rotate, so that the fixed shaft drives a connecting plate I to rotate, scale and rotation display can be performed on a plane design plate model, a student can see visual communication of the model at different angles from one point, two hands of a teacher can be freed by electric rotation, and the teacher can more effectively perform teaching demonstration.

The invention discloses a writing brush head, a manufacturing method and an application thereof. The writing brush head contains at least two brush hair materials which are enough different in hydrophilic-hydrophobic property or hygroscopic property, wherein one of the two brush hair materials is better in ink resistance. The writing brush head is characterized in that in the writing process, strokes take on stroke profiles and thick-thin difference in the strokes along the brush moving track by utilizing difference of the ink absorbing amounts of different brush hair materials. The writing brush head and a writing brush disclosed by the invention have the advantages that the brush moving track in the writing or drawing process can be displayed, teaching demonstration and painting imitation training are convenient, the strokes also can show three-dimensional or richer-layered works, and the interestingness, the beauty and the appreciation are enhanced. The writing brush head can be prepared by widely adopting undegreased or incompletely-degreased animal hairs or plant fibers and the existing artificial fibers or synthetic fibers as brush hair materials, the materials are easily available, the method is simple and convenient, the process is simplified, the operation is convenient, the suitability for large-scale material supplying is achieved and the cost is low.

The invention provides a machine tool with the functions of cutting and milling simultaneously, which comprises a base, a work slipway and a spindle device; wherein, the work slipway comprises a first work slipway and a second work slipway; the first work slipway adopts a rolling guide for support and adopts a motor-lead-screw-nut as auxiliary driver; the second work slipway adopts a rolling guide for support and adopts a one-piece motor-lead-screw-nut as auxiliary driver; the spindle device is arranged on the first work slipway in a horizontal way; the movement directions of the two work slipways are orthogonally arranged. When the machine tool is used as a milling machine, the machine tool also comprises a third work slipway and a milling chuck; when the machine tool is used as a cutting machine, the machine tool also comprises a chuck and a cutting off tool rest; when the machine tool is used as another milling machine, the machine tool also comprises a rotary work table and a milling chuck.

The invention provides an electronic video laryngoscope with anti-mist function. The laryngoscope comprises a bracket component, an arc oropharynx air duct and spatula assembly, an image shooting component, a cell box and a display, wherein the arc oropharynx air duct and spatula assembly is positioned on the front end of the bracket component; the image shooting component is positioned at the lower part of arc oropharynx air duct and spatula assembly; the image shooting component comprises a camera and an illuminating lamp; the display can be rotatably arranged on the rear end of the bracket component; the camera is connected with the display through a data wire; the cell box is connected with the illuminating lamp, the camera and the display through electric wires. The electric video laryngoscope also comprises a cell kit which can also be used as an operation handle; the cell box is arranged in the cell kit; the cell kit is arranged on the side of the bracket component; the camera and the illuminating lamp are arranged on the front end of a cavity of the image shooting component; and an optical protective lens applied with anti-mist antireflection coating is fixed on the top end of the cavity of the image shooting component. The electric video laryngoscope can effectively shorten the handle length, can be operated conveniently, has lower requirement on operation experience of a doctor, and has excellent anti-mist effect.

The invention discloses an electronic circuit product chip scale maintenance intelligent detection card which comprises a power supply, an input port, a both-way port, a communication interface unit and a control unit. The input port collects level signals and identity (ID) information of a detecting object and sends the level signals and the ID information to the control unit; the both-way port collects frequency signals and analog quantity signals of the detecting object, sends the frequency signals and the analog quantity signals to the control unit and sends driving signals to the detecting object according to commands of the control unit; the communication interface unit is connected with the control unit and an external personal computer (PC); and the control unit receives information collected by the input port and the both-way port, processes the information into recognizable information of the PC, sends the information to the external PC through the communication interface unit, simultaneously receives control commands sent by the external PC and sends driving commands for driving the detecting object to the both-way port. The electronic circuit product chip scale maintenance intelligent detection card has generality and intelligent detection methods.

The invention provides a horizontal machine tool, which includes a machine base, a working slide table and a spindle device. The working slide table includes the first working slide table, the second working slide table and the third working slide table installed on the machine base; the third working slide table is set on the second working slide table, and the slider of the third working slide table is used In order to support the workpiece and move with the workpiece, the movement direction of the third working slide is roughly set vertically and moves together with the slider of the second slide; the movement direction of the second work slide is perpendicular to the third work slide The movement direction of the third working slide is set on the second working slide and moves together with the second working slide, and the moving direction of the first working slide is perpendicular to the direction of the second working slide and the third working slide direction of motion. The horizontal machine tool has small structural size, small volume, low driving power in the vertical direction, and is easy to use.

The invention belongs to the field of computer equipment, particularly relates to a computer structure convenient to disassemble and special for computer teaching, and aims to solve the problems thatan existing computer structure is usually fixed through structures such as bolts and is troublesome to disassemble and assemble, and a large amount of dust easily enters the computer due to the requirement for ventilation and heat dissipation in the computer, so the service life is affected. According to the scheme, the computer structure comprises a computer case body, and a power key, a restartkey, an audio interface and a microphone interface that are arranged on the computer case body; an installation through port groove is formed in one side of the computer case body, and a computer sideplate is hinged to the bottom of the installation through port groove. According to the computer structure, convenient disassembly and assembly can be realized through the hidden pull ring, the use is convenient and labor-saving, and when the teaching demonstration and cleaning box is disassembled each time, the internal dustproof filter plate can be cleaned, so that the dustproof filter plate isprevented from being blocked to influence heat dissipation, and the service life of the dustproof filter plate is prolonged.

The invention discloses intelligent teaching demonstration equipment for art teaching. The intelligent teaching demonstration equipment comprises four supporting legs and a circular plate, wherein the tops of the four supporting legs are fixedly connected with a mounting cylinder; the mounting cylinder is internally provided with an adjusting mechanism enabling the circular plate to ascend or descend; the adjusting mechanism comprises a screw rod, and the screw rod is rotatably connected to the inner bottom of the mounting cylinder; the outer wall of the screw rod is in threaded connection with a screw rod sleeve; the outer wall of the screw rod sleeve is fixedly connected with two mounting frames; the tops of the two mounting frames are fixedly connected with the bottom of the circular plate; the outer wall, located below the two mounting frames, of the screw rod sleeve is fixedly connected with a limiting block; a plurality of limiting grooves are formed in the inner wall of the mounting cylinder in a circumferential array mode; and the limiting block is connected with the inner walls of the limiting grooves in an up-down sliding mode. Through the cooperation of the above structures, a diversified and rich light environment can be constructed for teachers and students, demonstration and explanation of the teachers and observation of the students are facilitated, and the students can conveniently cultivate the sense of space and the sense of light.

The invention discloses an optical fiber gyroscope experimental device capable of coaxially rotating. The device includes a working table plate; a rotating table body is arranged on the working tableplate; a rotating shaft and a sliding ring which are coaxial with the rotating table body and are arranged inside and outside are arranged on the rotating table body; the rotating shaft is fixedly connected with the rotating table body; the rotating shaft is fixedly connected with the sliding ring through a sliding ring sleeve; the rotating table body is coaxially and fixedly connected with the power output end of a stepping motor; a connecting piece, a first control box assembly and an optical fiber gyroscope assembly are coaxially arranged at the top of the rotating shaft in sequence from bottom to top; the box body of the first control box assembly is in a round cover shape; and the fixing plate of the optical fiber gyroscope assembly is a round plate, a second control box assembly is further arranged on the working table plate, a power supply unit and a signal control end of the first control box assembly are respectively connected with the optical fiber gyroscope assembly, and thefirst control box assembly is electrically connected with the second control box assembly. The device is suitable for various optical experiments and teaching demonstration, flexible in control, convenient to control and widely suitable for the field of gyroscope teaching experiments.

The invention discloses a multi-party online learning method based on double cameras, clients and a server. The method comprises the following steps of receiving multi-path media data sent by at leasttwo clients; wherein the multi-channel media data is collected from each client and comprises figure video data, desktop video data and audio data; wherein the client comprises a main speaking end and a listening end; distributing a display area for the figure video data and the desktop video data from each client according to a preset mode; wherein the display area comprises a main display areaand an auxiliary display area; respectively sending multiple paths of media data which are not acquired from the client to each client, so that the client synchronously displays the multiple paths ofmedia data according to the distributed display area; receiving a control signaling from the main speaking end; and changing distribution of the display area according to the control signaling of themain speaking end. According to the method, multi-point simultaneous multi-angle real-time video communication is realized, a learning state of students is easy to master, and the demonstration interaction effect is better.

The invention discloses a miniature flight module for integrated power module teaching. The miniature flight module comprises a miniature flight module body and a charging base. The miniature flight module comprises an outer shell, a motor, a propeller, a battery and a controller for controlling the flight time of the micro flight module; the motor, the battery and the controller are all fixed inthe outer shell, and a rotating shaft of the motor extends out of the outer shell and is in threaded connection with the propeller; one end of the controller is electrically connected with the batteryand the other end is electrically connected with the motor; a plurality of charging grooves are formed in the charging base, and the miniature flight modules are detachably arranged in the charging grooves and used for charging the battery. The miniature flight module is reasonable in structural design and small in size, can be used for multi-person teaching, is controlled by the controller, guarantees the flight time, facilitates the presentation of better teaching demonstration, and is convenient and quick to charge because the rechargeable battery and the plurality of miniature flight modules are detachably arranged in the charging groove.

The present invention discloses a functional teaching demonstration device. The device comprises a slide rail arranged on a platform, the slide rail is slidingly connected with two sets of display units, each display unit comprises one curtain and one projector arranged at the front portion of one curtain; the bottom end of the slide rail is provided with a plurality of air bags capable of pushingthe display units to move; all the air bags are connected together to form foot pads covering the surface of the platform; one hydraulic pressure bag filled with clear water are arranged at intervalsbetween each two air bags, and all the hydraulic pressure bags communicate to one another; the hydraulic pressure bags located at one sides of the foot pads are connected with a discharging tube extended above a teacher's desk; and a water cup configured to hold water is arranged at the lower portion of the discharging tube.

A method for detecting robot precision by projection imaging of a material allowing quick conversion between a solid phase and a liquid phase specifically comprises the steps that at the step 1, a transparent testing mold cavity is prefabricated; at the step 2, a tested robot uses the solid material allowing the quick conversion between the solid phase and the liquid phase to process a testing part, and the testing part is corresponding to the testing mold cavity in shape; at the step 3, the testing part is put into the testing mold cavity; at the step 4, a light source is aligned to the testing mold cavity from a side direction; at the step 5, a projected image of the testing part in the testing mold cavity is collected; and at the step 6, the projected image is analyzed to obtain a processing precision value of the robot. The method for detecting the robot precision by the projection imaging of the material allowing the quick conversion between the solid phase and the liquid phase provided by the invention can be operated easily, wherein the testing part has a simple geometric figure, so that the testing part can be processed quickly through simple programming of the robot; and the material allowing the quick conversion between the solid phase and the liquid phase is applied, can be converted into a liquid at a temperature between 0 DEG C and 100 DEG C, can be solubilized for reutilization after testing, generates no substance discharge, and is energy-saving and environment-friendly.

The invention provides a laser timing guide rail. The laser timing guide rail comprises a laser unit power supply, a semi-conductor laser unit, a guide rail body, a reflecting mirror group, a light sensitive tube and an amplifier, wherein the laser unit power supply is connected with the semi-conductor laser unit; the reflecting mirror group comprises a plurality of reflecting mirrors, all the reflecting mirrors are arranged on two sides of the guide rail body respectively, and the reflecting mirrors and the semi-conductor laser unit form a light path; all the reflecting mirrors sequentially reflect lasers of the semi-conductor laser unit respectively and output the lasers to the light sensitive tube; an output end of the light sensitive tube is connected with the amplifier. Thus, the timing guide rail, simplification of the light path, reduction of the number of receivers as well as effective realization of timing and speed measurement of fast moving objects are realized with the laser technology, and the laser timing guide rail can be matched with multiple signal receiving devices for use and used as a teaching demonstration to enable students to learn natural physical science.

The invention relates to a magnetic board system for secondary mathematics teaching. The magnetic board system for secondary mathematics teaching comprises a magnetic board supporting frame which is provided with a track system; a dust collection module is arranged at the bottom of the magnetic board supporting frame; two collection modules are arranged below the dust collection module; rotating modules are arranged at the bottoms of the collection modules; guide wheels are connected to the bottoms of the rotating modules; one end of the magnetic board supporting frame is connected with a connection module which is further connected with a moving mechanism; and one end of each movable board is connected with a fixing module. The magnetic board system for secondary mathematics teaching is provided with the multiple movable boards, so that different contents are subjected to demonstration teaching conveniently in the teaching process; as each movable board is internally provided with a magnetic interlayer, models can be pasted for exhibition conveniently, and the magnetic interlayers can be detached and taken out for maintenance; by means of a designed suspension block, picture models can be suspended for exhibition conveniently; and by means of the dust collection module, chalk dust falling in the writing or erasing process can be conveniently collected and can also be conveniently removed without independently cleaning the inside of the board.

The invention discloses an electrician teaching appliance which is characterized by comprising a touch screen displayer and a multimedia teaching tool, wherein the multimedia teaching tool comprises a projector, a display screen, a computer and a loudspeaker box, the touch screen displayer is in wireless communication with the computer of the multimedia teaching tool, and the touch screen displayer comprises a capacitance input module, a power source start module and a computer data synchronous control module. The electrician teaching appliance avoids the defect that only the multimedia teaching tool is used in multimedia teaching process, in the teaching process of complex circuits, due to the fact that some complex circuits need to be operated to be clearly displayed, by means of the electrician teaching appliance, operation of the circuit can be carried out on the touch screen displayer, a teacher can conveniently carry out teaching demonstration, and study of students is facilitated.

The invention provides a selective-laser-sintering 3D printing demonstrator, and relates to the field of 3D printing equipment. The selective-laser-sintering 3D printing demonstrator comprises a shell (7), a laser control system (1), a display screen (2), a forming chamber (3), a protective gas bottle (6) and a material recycling chamber (8). The laser control system (1) is mounted on the upper portion of the shell (7), and is used for generating laser. The display screen (2) is mounted on the shell (7), and is connected with the laser control system (1). The forming chamber (3) is mounted in the middle of the shell (7), and is located below the laser control system (1). The protective gas bottle (6) is mounted on the side wall of the shell (7), and is used for injecting protective gases into the forming chamber (3). The material recycling chamber (8) is mounted on the lower portion of the shell (7). The selective-laser-sintering 3D printing demonstrator has the advantages of simple structure, portability in size, low process cost and machine cost, greatly-reduced 3D printing threshold, and convenience in demonstration and teaching.

The invention discloses a display device for facilitating painting teaching demonstration. The display device comprises a base; a light-emitting diode (LED) display screen is fixedly installed on thetop of the base; a writing board is arranged at the front of the base; a camera is installed at the front of the base and above the writing board by means of a fixed rack; two first fixed blocks and two second fixed blocks are respectively and symmetrically installed at the front of the base and at the two sides of the writing board; a first screw rod is installed between the first fixed blocks bymeans of a first rolling bearing, and a second screw rod is installed between the second fixed blocks by means of a second rolling bearing; the exterior of the first screw rod is in threaded connection with one end of a blackboard eraser by means of a first screw nut, and the exterior of the second screw rod is in threaded connection with the other end of a blackboard eraser by means of a secondscrew nut. The display device for facilitating painting teaching demonstration is convenient for the field painting of students and the demonstration of a teacher; furthermore, the writing board can be rapidly wiped, so that the painting efficiency is effectively increased; therefore, the display device for facilitating painting teaching demonstration is worth popularizing and popularizing.

The invention relates to visualized medical auxiliary inspection equipment, belonging to the technical field of medical appliances. The visualized medical auxiliary inspection equipment not only can process clinical inspection data but also can demonstrate to many people in time, thereby being convenient for teaching activities. The visualized medical auxiliary inspection equipment of the invention comprises an observing system and an imaging device, wherein the observing system has a barrel-shaped shell and is provided with an ocular lens, an objective lens, a spectroscope, an optical fiber interface and a mechanical supporting seat, and the optical fiber interface is connected with the imaging device through optical fibers. The invention has the advantages of small volume, low cost and convenient use. When in use, the scene seen by a user who wears the visualized medical auxiliary inspection equipment is shown on the imaging system or other external equipment. The visualized medical auxiliary inspection equipment can be widely applied to scientific research, teaching and medical diagnosis and identification and especially medical diagnosis and teaching of frontal mirrors, indirect laryngoscopes, ophthalmoscopes, skiascopes and other equipment which only can be independently observed by observers, can also be used for drawing, shooting and recording of teaching data, scientific research data and clinical data, and is beneficial to research analysis, teaching demonstration, consultation identification and other works.

The invention relates to the technical field of graphic teaching content display, and specifically relates to a graphic teaching method and system. The graphic teaching method comprises the steps thatS1, a moving trajectory of a teaching mouse, a clicking position of the teaching mouse, an operating video and a key position of a teaching keyboard are recorded in the teaching process, and the recorded information is stored in a memory; S2 a corresponding key on a learning keyboard is turned on after the learning keyboard receives the key position; S3 a trajectory action module indicates a learning mouse to repeat the trajectory of the teaching mouse after the learning mouse receives the moving trajectory of the teaching mouse; and S4 the operating video of the recorded information is copied to a learning terminal to play through the memory. The graphic teaching system comprises a teaching terminal and a learning terminal, wherein the teaching terminal comprises a recording module and amemory, and the learning terminal comprises a video playing module, a key action module and a trajectory action module. The graphic teaching method and system carry out graphic design theory teachingin a graphic and artistic mode, facilitate teachers to explain difficult points of the knowledge and can be applied to teaching of other subjects.

The invention provides a classroom interactive teaching demonstration device. The classroom interactive teaching demonstration device comprises a device body, a baffle is fixedly installed at the bottom of the device body, a driving motor is fixedly installed at the bottom of the baffle, a lead screw is fixedly installed on an output shaft of the driving motor, a supporting plate is movably installed at the top of the baffle, and the supporting plate is movably installed on the lead screw through a lead screw nut. According to the classroom interactive teaching demonstration device, the lead screw is driven by the driving motor to lift and store a first display screen, a second display screen and a third display screen, so that the phenomenon that the display screens are damaged due to accidents can be avoided; a left stepping motor and a right stepping motor can drive rotating shafts to adjust the angle between the first display screen and the second display screen and the angle between the first display screen and the third display screen, and the first display screen, the second display screen and the third display screen can display different teaching contents, so that the teaching quality can be improved; and a teacher can conveniently know the learning condition of students through a camera.

The invention discloses an auxiliary device for teaching management. The auxiliary device disclosed by the invention comprises a main body, wherein a plurality of vertically placed demonstration boards are arranged on the inner bottom surface of the main body, lifting devices are arranged on the left and right sides of each demonstration board, the lifting devices can drive the demonstration boards to move up and down, transfer devices are arranged on the two sides of the main body, the transfer devices and the lifting devices are arranged on the same side, a hoisting device is arranged in the main body, the transfer devices can drive the demonstration boards to move close to the hoisting device, each transfer device comprises a sliding block which can move close to or away from the hoisting device, second air cylinders are arranged on the side, facing the demonstration boards, of the sliding blocks, telescopic rods of the second air cylinders can be inserted into or separated from the demonstration boards, the hoisting device comprises a second supporting seat capable of lifting up and down, the lower portions of the demonstration boards can abut against the upper portion of the second supporting seat, and the second supporting seat can drive the demonstration boards to exceed the upper portion of the main body. According to the invention, different demonstration boards can be switched through the lifting devices, the transfer devices and the hoisting device, teaching of teachers is facilitated, the structure of the auxiliary device is simple and reasonable, and the practicability of the auxiliary device is good.