CN112927590A - Experimental device for electronic information engineering major - Google Patents
Experimental device for electronic information engineering major Download PDFInfo
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- CN112927590A CN112927590A CN202110154547.7A CN202110154547A CN112927590A CN 112927590 A CN112927590 A CN 112927590A CN 202110154547 A CN202110154547 A CN 202110154547A CN 112927590 A CN112927590 A CN 112927590A
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Abstract
本发明公开了一种电子信息工程专业用实验装置，包括实验平台和多个夹持装置，所述实验平台开设有条形内槽，所述条形内槽开设有多个条形开口，所述条形内槽内转动连接有丝杠，所述丝杠上设有丝套，所述丝杠两端的螺纹相反，每个所述丝套的侧壁固定连接有固定板，所述丝杠的侧壁固定连接有多个第一锥齿轮和多个第二锥齿轮。本发明的优点在于，通过多个固定板等结构可以对实验仪器进行固定，方便学生对实验仪器操作，通过第一遮挡布和第二遮挡布等结构可以对条形开口进行遮挡，避免有物品或者垃圾从条形开口掉进条形内槽，从而保证装置的正常运行，通过第一转盘可以调整多个固定板之间的距离，从而使固定板适用于不同大小的实验仪器。
The invention discloses a professional experimental device for electronic information engineering, comprising an experimental platform and a plurality of clamping devices. The experimental platform is provided with a strip-shaped inner groove, and the strip-shaped inner groove is provided with a plurality of strip-shaped openings, so A lead screw is rotatably connected in the strip-shaped inner groove, a lead screw is provided on the lead screw, the threads at both ends of the lead screw are opposite, and a fixing plate is fixedly connected to the side wall of each lead screw. A plurality of first bevel gears and a plurality of second bevel gears are fixedly connected to the side wall of the device. The advantage of the present invention is that the experimental instrument can be fixed by a plurality of fixing plates and other structures, which is convenient for students to operate the experimental instrument. Or garbage falls into the bar-shaped inner groove from the bar-shaped opening, so as to ensure the normal operation of the device, and the distance between the plurality of fixed plates can be adjusted through the first turntable, so that the fixed plates are suitable for experimental instruments of different sizes.
Description
Technical Field
The invention relates to the technical field of experimental equipment, in particular to an experiment device for electronic information engineering major.
Background
The electronic information engineering is the general major of higher schools and belongs to the electronic information major. The electronic information engineering specialty is a specialty integrating modern electronic technology, information technology and communication technology. The profession develops and masters the modern electronic technical theory, is familiar with the design principle and the design method of an electronic system, has stronger computer, foreign language and corresponding engineering technical application capability, and is a high-grade engineering technical talent with innovation capability for the comprehensive development of wide caliber, high quality and intelligence in the fields of electronics, information and communication, such as electronic technology, automatic control, intelligent control, computer and network technology and the like. The electronic information engineering industry is mainly studying basic circuit knowledge and mastering the way of processing information with computers and the like.
On electronic information engineering experiment class, students need weld the circuit board, because circuit board welding needs precision operation, the student if a hand fixed circuit board, error then appears easily in hand welding, then very trouble to some less device welding, the fixed of instruments such as circuit board is not convenient for to current experiment operation panel, therefore the student is very inconvenient when using, and circuit board level places on the desktop, the student is when doing the experiment, need overlook the circuit board, consequently students need stand and operate the experiment, let the student tired out easily like this, reduce the teaching quality.
The student needs interconnecting link in the experiment, can need to peel off the coating of electric wire end, exposes the inside wire, then together with the end connection of other circuits, and current processing mode generally adopts the wire stripper to peel off, and efficiency is slower and the degree of difficulty is great, has seriously delayed student's experiment progress, influences experiment teaching effect.
When carrying out the circuit board wiring, need arrange to the electric wire, but the electric wire shape that has just taken is all relatively crooked, to the neat degree and the pleasing to the eye effect of wiring, has very big influence, and some electric wires too twisted can disturb the trend of wiring on the contrary, influence experiment teaching effect.
Teacher in the implementation room when carrying out some classic circuit teaching, because the circuit is more complicated, teacher need demonstrate the circuit and how pass through the connection of electric lines, but because the circuit is too much, current adoption connection of electric lines mode leads to the electric wire to be mixed and disorderly easily, and the student is very easy just to see dizzy for the experiment teaching effect is very poor.
Disclosure of Invention
The invention aims to solve the problems that an experimental device is inconvenient to fix and students need to stand to be kept in an experiment to cause fatigue of the students in the prior art, and provides the experimental device for electronic information engineering major.
In order to achieve the purpose, the invention adopts the following technical scheme:
an experimental device for electronic information engineering major comprises an experimental platform and a plurality of clamping devices, wherein the experimental platform is provided with a strip-shaped inner groove, the strip-shaped inner groove is provided with a plurality of strip-shaped openings, a lead screw is connected in the strip-shaped inner groove in a rotating manner, the lead screw is provided with a screw sleeve, threads at two ends of the lead screw are opposite, the side wall of each screw sleeve is fixedly connected with a fixed plate, the side wall of the lead screw is fixedly connected with a plurality of first bevel gears and a plurality of second bevel gears, the inner side wall of the strip-shaped inner groove is rotatably connected with a plurality of first double bevel gears matched with the first bevel gears through a bearing, the inner side wall of the strip-shaped inner groove is fixedly connected with a connecting plate, the side wall of the connecting plate is rotatably connected with a second double bevel gear matched with the second bevel gears through a bearing, and, the side wall of each first rotating roller is fixedly connected with a third bevel gear matched with the first double-head bevel gear, the side wall of each first rotating roller is wrapped with first shielding cloth, the size of each first shielding cloth is larger than that of the strip-shaped opening, the side walls of a plurality of fixing plates are rotatably connected with a plurality of second rotating rollers through a plurality of second support plates, one end, far away from the first rotating roller, of each first shielding cloth is fixedly connected with the second rotating roller, the side wall, far away from the second rotating roller, of each fixing plate is rotatably connected with a third rotating roller through a third support plate, the side wall of the connecting plate is rotatably connected with a plurality of fourth rotating rollers through a plurality of fourth support plates, the side wall of each fourth rotating roller is fixedly connected with a fourth bevel gear matched with the second double-head bevel gear, the side wall of each fourth rotating roller is provided with a second shielding cloth, and the size of each second shielding cloth is larger than that of the strip-shaped opening, one end of each second shielding cloth, which is far away from the fourth rotating roller, is fixedly connected with the third rotating roller, the experiment platform is provided with a first inner chamber, the screw rod penetrates through the strip-shaped inner groove and extends into the first inner chamber, the side wall of the screw rod extending into the first inner chamber is fixedly connected with a fifth bevel gear, the screw rod is rotationally connected with the inner wall of the first inner chamber, a rotating rod is rotationally connected in the first inner chamber, one end of the rotating rod, which is close to the fifth bevel gear, is fixedly connected with a sixth bevel gear matched with the fifth bevel gear, the experiment platform is provided with a second inner chamber, the rotating rod extends into the second inner chamber, one end of the rotating rod, which is far away from the sixth bevel gear, is fixedly connected with a seventh bevel gear, a short rod is rotatably connected in the second inner chamber, one end of the short rod close to the first bevel gear is fixedly connected with an eighth bevel gear, the short rod penetrates through the second inner chamber, and one end, far away from the eighth bevel gear, of the short rod is fixedly connected with a first rotating disc.
Preferably, every be equipped with a plurality of first magnetic force pieces on the first cloth that shelters from, the piece is inhaled to the first magnetism that a plurality of and first magnetic force piece match of upside inner wall fixedly connected with of bar inside groove, every the second shelters from and is equipped with a plurality of second magnetic force pieces on the cloth, the piece is inhaled to the second magnetism that a plurality of and second magnetic force piece match of upside inner wall fixedly connected with of bar inside groove, one a third inner room has been seted up in the fixed plate, the inside wall of third inner room rotates and is connected with the horizontal pole, the horizontal pole runs through the third inner room, the lateral wall fixedly connected with first butt plate of third inner room is kept away from to the horizontal pole, and the fixed plate that does not set up the third inner room rotates and is connected with the second butt plate near the lateral wall of first butt plate, first butt plate with a plurality of screw holes have been seted.
Preferably, the lateral wall of the cross rod extending into the third inner chamber is fixedly connected with a first worm wheel, the third inner chamber is rotatably connected with a first worm matched with the first worm wheel, one end of the first worm far away from the third inner chamber is fixedly connected with a second turntable, a plurality of fourth inner chambers are arranged in each clamping device, each fourth inner chamber is rotatably connected with a rotary drum, a square groove is formed in each rotary drum, a second worm is rotatably connected with each clamping device, the second worms penetrate through the fourth inner chambers, the lateral wall of each rotary drum is fixedly connected with a second worm wheel matched with the second worm, a square rod is slidably connected in each square groove, and one end of each square rod far away from the square groove is fixedly connected with a threaded rod matched with a threaded hole.
Preferably, the experiment platform is further provided with a wire stripping end device, the wire stripping end device comprises a wire straightening mechanism and a wire stripping end mechanism, and the wire straightening mechanism comprises a longitudinal straightening mechanism and a transverse straightening mechanism;
the longitudinal straightening device comprises a driving motor, a vertical frame and two first rollers, wherein the vertical frame comprises a base, two fixed connecting seats and two lifting connecting seats, a rotating shaft is horizontally and rotatably arranged on the base, and the rotating shaft is coaxially and fixedly connected with the output end of the driving motor through a coupler;
the two fixed connecting seats are respectively fixed at the end parts of the base, which are positioned at the two sides of the first roller wheel, the two lifting connecting seats are in one-to-one vertical sliding fit with the two fixed connecting seats, two vertical strip-shaped blocks are fixedly installed at the bottoms of the lifting connecting seats, and two vertical slideways for the two vertical strip-shaped blocks to be in sliding fit respectively are arranged on the side surfaces of the fixed connecting seats;
the center lines of the two first rollers are horizontally arranged and are parallel to each other, the two first rollers are sequentially arranged from top to bottom, the upper first roller is rotatably connected with the two lifting connecting seats through a first central shaft along the self center line, and the lower first roller is rotatably connected with the two fixed connecting seats through a second central shaft along the self center line;
the axes of the rotating shaft, the first central shaft and the second central shaft are parallel to each other, the two ends of the first central shaft are fixedly provided with second belt wheels, the rotating shaft is fixedly provided with two first belt wheels, and the two first belt wheels are in one-to-one corresponding transmission connection with the two second belt wheels through a first elastic synchronous belt;
preferably, transversely smooth out with fingers straight including horizontal frame and two second running rollers, horizontal frame is including vertical base, two fixed bearing seats and two horizontal bearing seats, vertical base rotates installs vertical main shaft, the bottom fixed mounting of vertical main shaft has the fourth band pulley, fixed mounting has first bevel gear on driving motor's the output shaft, first bevel gear meshing has the second bevel gear, and the central line vertical setting of second bevel gear just has the axis of rotation along self central line fixed mounting, and vertical setting of axis of rotation and bottom are passed through the bearing seat and are rotated and install on the experiment platform, and fixed mounting has the fifth pulley in the axis of rotation, and the fifth pulley is connected through main hold-in range transmission with the fourth band pulley.
The two fixed bearing seats are respectively fixed at the end parts of the vertical base, which are positioned at the two sides of the second roller, the two transverse bearing seats are in one-to-one correspondence vertical sliding fit with the two fixed bearing seats, the bottom of each transverse bearing seat is fixedly provided with two transverse bar-shaped blocks, and the side surface of each fixed bearing seat is provided with two horizontal slideways for the two transverse bar-shaped blocks to respectively slide fit;
the central lines of the two second rollers are vertically arranged and are parallel to each other, the two second rollers are arranged along the axis direction of the rotating shaft, the second roller far away from the driving motor is rotatably connected with the two transverse bearing seats through a third central shaft along the self central line, and the second roller close to the driving motor is rotatably connected with the two fixed bearing seats through a fourth central shaft along the self central line;
the axes of the vertical main shaft, the third central shaft and the fourth central shaft are parallel to each other, third belt pulleys are fixedly arranged at two ends of the third central shaft, two sixth belt pulleys are fixedly arranged on the vertical main shaft, and the two sixth belt pulleys are in one-to-one corresponding transmission connection with the two third belt pulleys through a second elastic synchronous belt;
preferably, the wire stripping mechanism comprises a pressing assembly and a wire stripping assembly, the pressing assembly comprises a pressing cylinder, a horizontal fixing plate and a horizontal lower pressing plate, the horizontal fixing plate is erected on the experiment platform through two vertical rods, and the horizontal lower pressing plate is located right above the horizontal fixing plate and is in sliding fit with the two vertical rods;
a protective cover body is sleeved outside the wire stripping end device, a plurality of guide rods are vertically arranged at the top of the protective cover body, the downward pressing air cylinder is in sliding fit with the two guide rods through an installation plate, a plug is arranged at the top end of each guide rod, a buffer spring is sleeved between the plug and the installation plate of each guide rod, and an output shaft of the downward pressing air cylinder is vertically downward and is fixedly connected with the bottom of the horizontal lower pressing plate through an inverted U-shaped frame;
preferably, the wire stripping subassembly is including rotatory slat, rotation cutter, goes up cutter and lower cutter, and lower cutter and last cutter's structure is crescent and the opening is relative, and the place plane of lower cutter and last cutter all is parallel with the central line of all guide bars, lower cutter opening face up and fix in horizontal fixed plate side, it just fixes in horizontal holding plate side to go up cutter opening face down.
The rotary batten is parallel to a plane where an upper cutting knife is located, the upper cutting knife is located with a plurality of arc sliding holes in the same circle center, a plurality of fixing heads which are inserted into all the arc sliding holes one by one are fixedly installed on the rotary batten, the rotary cutting knife is of a disc structure and is rotatably installed at one end, close to the lower cutting knife, of the rotary batten, an arc rack is installed at the other end of the rotary batten, the plane where the arc rack is located is parallel to the plane where the upper cutting knife is located, a horizontal sliding rail is installed at the top of the horizontal lower pressing plate, the length direction of the horizontal sliding rail is parallel to the plane where the upper cutting knife is located, a sliding block is slidably installed on the horizontal sliding rail, a horizontal rack meshed with the arc rack is fixedly installed on the sliding block, openings of all the arc sliding holes face down, and the circle center of all the arc.
Preferably, the experiment platform further comprises a circuit teaching mechanism, the circuit teaching mechanism comprises a teaching board, a plurality of fulcrum components and a plurality of connecting components, the teaching board is provided with a plurality of parallel sliding grooves, and all the fulcrum components are in sliding fit with the sliding grooves through sliding blocks;
the fulcrum subassembly is still including fixing base, the connecting block and the a plurality of metal pole of the eight prismatic structure of a plurality of, and the fixing base is including the fixed column with sliding block fixed connection, and the one end that the sliding block was kept away from to the fixed column is provided with the screw hole, the connecting block is provided with the through-hole that supplies the butt joint to pass along self central line, the one end integrated into one piece of metal pole has the bolt, and the other end of metal pole is provided with the threaded connection hole, and the outside of fixed column and metal pole is provided with the insulating layer, and the insulating layer on the.
Eight sides of connecting block all are provided with articulated seat, it is connected with the metal hinge shaft to rotate on the articulated seat, the connecting block is provided with the sheetmetal of eight horns shape with through-hole central line vertically one side, and the hole is dodged with the through-hole size the same in the center of sheetmetal, and the sheetmetal is contradicted with all metal hinge shafts simultaneously and is connected.
Preferably, the connecting assembly comprises an element fixing frame with a rectangular structure and two electric connecting rods which are respectively fixed at two ends of the element fixing frame, the two ends of the inner side of the element fixing frame are both provided with electric connecting plates, a U-shaped clamping part is also arranged in the element fixing frame, two ends of the U-shaped clamping part can simultaneously abut against the side edges of the two electric connecting plates, u-shaped clamping part fixed mounting has the first slide bar of the fixed frame length direction vertically of a plurality of and component, one side of the fixed frame of component is provided with dodges the gliding perforation of first slide bar, the fixed frame opposite side fixed mounting of component has the second slide bar parallel with first slide bar central line, the fixed frame of component is provided with the U-shaped board outward, the inboard one end and the first slide bar fixed connection of U-shaped board, the inboard other end and the second slide bar sliding fit of U-shaped board, the second slide bar is located and overlaps between the fixed frame of U-shaped board and component and is equipped with reset spring.
The electric connecting rod including outer side pipe and with the intraductal side sliding fit's of outer side pipe interior side pipe, the intraductal rotation of outer side is installed and is linked up the spiale, it has the electric connection line to link up the winding on the spiale, the one end that the fixed frame of component was kept away from to interior side pipe sets up the metal pipe that supplies the metal articulated shaft to pass, the one end and one of them electric connection board electric connection of electric connection line, the other end of electric connection line and the outside welding cooperation of metal pipe.
Preferably, the circuit teaching method of the experimental device for the electronic information engineering major comprises the following steps:
step S1, connecting a plurality of fulcrum assemblies through a plurality of connecting assemblies in advance to form a circuit frame, and then clamping the electric element in the element fixing frame of each corresponding connecting assembly to form a complete circuit;
step S2: when too many lines cause interference of a plurality of connecting components connected with the same fulcrum component, the connecting components are added on the basis of the fulcrum components through the threaded connection accumulation of the metal rods, and the interfered connecting components are electrically connected with the accumulated fulcrum components;
step S3: the metal rod, the metal sheet, the metal hinge shaft, the electric connecting wire and the element clamped in the element fixing frame on the fulcrum assembly form a current path, and if the element clamped in the element fixing frame is a short connecting wire, the connecting assembly is equivalent to the electric connecting wire;
step S4: the circuit combination is successful, and then two fulcrum components corresponding to the power supply fulcrum are taken to be connected with the power supply through the connecting component.
Compared with the prior art, the invention has the beneficial effects that:
1. the experimental instrument can be fixed through the structures such as the fixing plates, so that students can conveniently operate the experimental instrument, the strip-shaped opening can be shielded through the structures such as the first shielding cloth and the second shielding cloth, articles or garbage are prevented from falling into the strip-shaped inner groove from the strip-shaped opening, the normal operation of the device is ensured, the distance between the fixing plates can be adjusted through the first rotary disc, and the fixing plates are suitable for the experimental instruments with different sizes;
2. when the circuit board is welded, the clamping devices can be fixed on the first abutting plate and the second abutting plate, the circuit board is clamped through the clamping devices, the circuit board is fixed through the fixing plates, students can conveniently weld the circuit board, and the inclination angle of the circuit board can be adjusted by rotating the second rotating disc, so that the students can well observe the circuit board while sitting on a seat without standing when welding the circuit board, the fatigue of the students is reduced, and the teaching quality is improved;
3. can make first shielding cloth and second shelter from cloth through first magnetic force piece, second magnetic force piece isotructure and paste a shape inside groove, reduce first shielding cloth and second and shelter from the gap between cloth and the bar inside groove, further guaranteed the clean nature of bar inside groove, clamping device convenient dismantlement, when needs fixed other laboratory glassware, through first offset and second offset support laboratory glassware can, whole device suitability is high.
4. The longitudinal straightening mechanism and the transverse straightening mechanism can quickly and completely straighten the electric wires, facilitate the students to exercise the wiring of the electric wires on the circuit board, ensure the uniformity and attractive effect of the wiring when the students exercise the wiring, and improve the experimental teaching effect.
5. The wire stripping mechanism can assist students in timely stripping the paint coats at the end parts of the electric wires to expose the metal wires inside when the students test the connection circuits, is convenient for the students to connect the electric wires with the end parts of other circuits, improves the test efficiency, reduces the unnecessary time waste, reduces the test difficulty and quickens the test progress of the students.
6. The fulcrum assembly and the connecting assembly of the circuit teaching mechanism enable a teacher to quickly connect circuits needing teaching, the fulcrum assemblies can be accumulated through the metal rods, the phenomenon that the connecting assemblies on a single fulcrum assembly are too many and the interference degree of the connecting assemblies occurs is avoided, and the three-dimensional circuit connection is realized.
7. The element fixing frame can quickly replace the electric elements and change the trouble that the existing electric elements are bolted through the wire ends.
Drawings
FIG. 1 is a schematic structural diagram of a professional experimental apparatus for electronic information engineering according to the present invention;
FIG. 2 is a schematic structural diagram of a screw rod, a screw sleeve and other structures of an experimental device for electronic information engineering major proposed by the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
fig. 4 is a schematic structural diagram of the first shielding cloth and the second shielding cloth of the experimental apparatus for electronic information engineering major proposed in the present invention.
Fig. 5 is a first schematic perspective view of the wire straightening mechanism of the present invention;
fig. 6 is a schematic perspective view of a wire straightening mechanism according to the second embodiment of the present invention;
FIG. 7 is a first perspective view of the wire stripping end mechanism of the present invention;
FIG. 8 is a schematic perspective view of a second wire stripping end mechanism according to the present invention;
FIG. 9 is a front elevational view of the wire stripping end mechanism of the present invention;
FIG. 10 is an enlarged view of FIG. 9 at B;
fig. 11 is a schematic perspective view of the wire straightening mechanism and the wire stripping mechanism according to the present invention;
FIG. 12 is an enlarged view at C of FIG. 11;
FIG. 13 is a schematic perspective view of the longitudinal straightening mechanism of the present invention;
FIG. 14 is a schematic perspective view of the lateral straightening mechanism of the present invention;
FIG. 15 is a schematic perspective view of a circuit teaching mechanism according to the present invention;
FIG. 16 is a perspective assembled view of the fulcrum assembly and connection assembly of the present invention;
FIG. 17 is a perspective view of the fulcrum assembly and connection assembly of the present invention;
FIG. 18 is a front elevational view of the fulcrum assembly of the present invention;
FIG. 19 is a cross-sectional view taken along line D-D of FIG. 18;
fig. 20 is a perspective view of the connecting assembly of the present invention.
In the figure: 1 experiment platform, 2 clamping devices, 3 lead screws, 4 thread sleeves, 5 fixing plates, 6 first bevel gears, 7 second bevel gears, 8 first double-head bevel gears, 9 third bevel gears, 10 first shielding cloth, 11 second rotating rollers, 12 first rotating rollers, 13 second double-head bevel gears, 14 fourth bevel gears, 15 third rotating rollers, 16 fourth rotating rollers, 17 second shielding cloth, 18 connecting plates, 19 fifth bevel gears, 20 sixth bevel gears, 21 rotating rods, 22 seventh bevel gears, 23 eighth bevel gears, 24 short rods, 25 first rotating disks, 26 first magnetic blocks, 27 second magnetic blocks, 28 second magnetic blocks, 29 transverse rods, 30 first worm gears, 31 first worm screws, 32 rotating cylinders, 33 second worm screws, 34 second worm gears, 35 first abutting plates, 36 square rods, 37 third rotating disks, 38 third rotating disks, 39 second abutting plates, 40 second rotating disks, 41 first magnetic blocks,
A downward pressing component 42a, a wire stripping component 42b, a downward pressing cylinder 42c, a horizontal fixing plate 42d, a horizontal downward pressing plate 42e, a vertical rod 42f, a protective cover body 42g, a mounting plate 42h, a buffer spring 42j, a U-shaped frame 42k, a rotating strip plate 42m, a rotating cutting knife 42n, an upper cutting knife 42p, a lower cutting knife 42r, an arc-shaped hole 42s, a fixing head 42t, an arc-shaped rack 42U, a horizontal sliding rail 42w, a sliding block 42v, a horizontal rack 42y, a guide rod 42z, a longitudinal straightening mechanism 43, a driving motor 43a, a first elastic synchronous belt 43b, a first roller 43c, a base 43d, a fixed connecting seat 43e, a lifting connecting seat 43f, a rotating shaft 43g, a vertical strip-shaped block 43h, a vertical sliding way 43j, a first central shaft 43k, a second central shaft 43m, a first belt pulley 43n, a second belt pulley 43p, a transverse straightening mechanism 44, a butt joint pipe 44a, A second roller 44b, a vertical base 44c, a fixed bearing seat 44d, a lateral bearing seat 44e, a vertical main shaft 44f, a fourth pulley 44g, a first bevel 44h, a second bevel 44j, a rotation shaft 44k, a fifth pulley 44m, a main timing belt 44n, a back bearing seat 44p, a lateral bar-shaped block 44r, a horizontal slide 44s, a third center shaft 44t, a fourth center shaft 44U, a third pulley 44w, a sixth pulley 44x, a second elastic timing belt 44y, a teaching plate 45a, a fulcrum assembly 45b, a metal sheet 45c, a slide groove 45d, a slide block 45e, a connection block 45h, a metal rod 45j, a fixed column 45k, an insulating layer 45m, a hinge seat 45n, a metal hinge shaft 45p, a connection assembly 46, an element fixing frame 46a, an electric connection plate 46b, a U-shaped holding portion 46c, a first slide rod 46d, a second slide rod 46e, a U-shaped plate 46f, a U-shaped plate 46, A return spring 46g, an inner square tube 46h, an outer square tube 46j, a metal round tube 46k, a connecting shaft 46m, and an electrical connection wire 46 n.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an experimental apparatus for electronic information engineering specialties comprises an experimental platform 1 and a plurality of clamping devices 2, wherein the experimental platform 1 is provided with a strip-shaped inner groove, the strip-shaped inner groove is provided with a plurality of strip-shaped openings, a lead screw 3 is rotatably connected in the strip-shaped inner groove, a screw sleeve 4 is arranged on the lead screw 3, threads at two ends of the lead screw 3 are opposite, a fixing plate 5 is fixedly connected to a side wall of each screw sleeve 4, a plurality of first bevel gears 6 and a plurality of second bevel gears 7 are fixedly connected to a side wall of the lead screw 3, a plurality of first double-ended bevel gears 8 matched with the first bevel gears 6 are rotatably connected to an inner side wall of the strip-shaped inner groove through bearings, a connecting plate 18 is fixedly connected to an inner side wall of the strip-shaped inner groove, a second double-ended bevel gear 13 matched with the second bevel gears 7 is rotatably connected, the side wall of each first rotating roller 12 is fixedly connected with a third bevel gear 9 matched with the first double-head bevel gear 8, the side wall of each first rotating roller 12 is wrapped with a first shielding cloth 10, the size of each first shielding cloth 10 is larger than that of the strip-shaped opening, the side walls of a plurality of fixing plates 5 are rotatably connected with a plurality of second rotating rollers 11 through a plurality of second support plates, one end, far away from the first rotating roller 12, of each first shielding cloth 10 is fixedly connected with the second rotating roller 11, the side wall, far away from the second rotating roller 11, of each fixing plate 5 is rotatably connected with a third rotating roller 15 through a third support plate, the side wall of a connecting plate 18 is rotatably connected with a plurality of fourth rotating rollers 16 through a plurality of fourth support plates, the side wall of each fourth rotating roller 16 is fixedly connected with a fourth bevel gear 14 matched with the second double-head bevel gear 13, the side wall of each fourth rotating roller 16 is provided with a second shielding cloth 17, and the size of each second shielding cloth 17 is larger than that of the strip-shaped opening, one end of each second shielding cloth 17, which is far away from the fourth rotating roller 16, is fixedly connected with the third rotating roller 15, the experiment platform 1 is provided with a first inner chamber, the screw rod 3 penetrates through the strip-shaped inner groove and extends into the first inner chamber, the side wall of the screw rod 3 extending into the first inner chamber is fixedly connected with a fifth bevel gear 19, the screw rod 3 is rotatably connected with the inner wall of the first inner chamber, and one end of the rotating rod 21, which is rotatably connected with the rotating rod 21 and is close to the fifth bevel gear 19, is fixedly connected with a sixth bevel gear 20 matched with the fifth bevel gear 19;
the experiment platform 1 is provided with a second inner chamber, the rotating rod 21 extends into the second inner chamber, one end of the rotating rod 21 far away from the sixth bevel gear 20 is fixedly connected with a seventh bevel gear 22, a short rod 24 is rotatably connected in the second inner chamber, one end of the short rod 24 close to the first bevel gear 6 is fixedly connected with an eighth bevel gear 23, the short rod 24 penetrates through the second inner chamber, one end of the short rod 24 far away from the eighth bevel gear 23 is fixedly connected with a first rotating disc 25, the experimental instrument can be fixed through the structures such as the plurality of fixing plates 5, the operation of the experimental instrument by students is convenient, the strip-shaped opening can be shielded through the structures of the first shielding cloth 10, the second shielding cloth 17 and the like, so that articles or garbage are prevented from falling into the strip-shaped inner groove from the strip-shaped opening, therefore, the normal operation of the device is ensured, and the distances among the fixing plates 5 can be adjusted through the first rotating disc 25, so that the fixing plates 5 are suitable for experimental instruments with different sizes;
each first shielding cloth 10 is provided with a plurality of first magnetic blocks 41, the upper inner wall of the strip-shaped inner groove is fixedly connected with a plurality of first magnetic blocks 26 matched with the first magnetic blocks 41, each second shielding cloth 17 is provided with a plurality of second magnetic blocks 27, the upper inner wall of the strip-shaped inner groove is fixedly connected with a plurality of second magnetic blocks 28 matched with the second magnetic blocks 27, the first magnetic blocks 41, the second magnetic blocks 27 and other structures can enable the first shielding cloth 10 and the second shielding cloth 17 to be tightly attached to the strip-shaped inner groove, the gap between the first shielding cloth 10 and the second shielding cloth 17 and the strip-shaped inner groove is reduced, the cleanness of the strip-shaped inner groove is further ensured, a third inner chamber is arranged in one fixing plate 5, the inner side wall of the third inner chamber is rotatably connected with a cross rod 29, the cross rod 29 penetrates through the third inner chamber, the side wall of the cross rod 29 far away from the third inner chamber is fixedly connected with a first resisting plate 35, the side wall of the fixing plate 5 which is not provided with the third inner chamber and is close to the first resisting plate 35, the side walls of the first resisting plate 35 and the second resisting plate 39 are provided with a plurality of threaded holes, the side wall of the cross rod 29 extending into the third inner chamber is fixedly connected with a first worm wheel 30, a first worm 31 matched with the first worm wheel 30 is connected in the third inner chamber in a rotating mode, one end, far away from the third inner chamber, of the first worm 31 is fixedly connected with a second rotating disc 40, a plurality of fourth inner chambers are arranged in each clamping device 2, and each fourth inner chamber is connected with a rotating drum 32 in a rotating mode;
each rotary drum 32 is internally provided with a square groove, each clamping device 2 is rotationally connected with a second worm 33, the second worms 33 penetrate through the fourth inner chambers, the side wall of each rotary drum 32 is fixedly connected with a second worm wheel 34 matched with the second worm 33, each square groove is slidably connected with a square rod 36, one end, far away from the square groove, of each square rod 36 is fixedly connected with a threaded rod 37 matched with a threaded hole, when a circuit board is welded, the clamping device 2 can be fixed on a first abutting plate 35 and a second abutting plate 39, the circuit board is clamped through the clamping devices 2, the circuit board is fixed through the fixing plates 5, a student can conveniently weld the circuit board, the inclination angle of the circuit board can be adjusted through rotating the second rotary disc 40, therefore, the student does not need to keep standing when welding the circuit board, and can well observe the circuit board when sitting on a seat, reduce student's fatigue, improve the quality of teaching, clamping device 2 is convenient to be dismantled, when other laboratory glassware is fixed to needs, support the laboratory glassware through first 35 and the second of supporting board 39 can, whole device suitability is high.
When the experimental instrument is used, a first rotary disc 25 is rotated, the distance between a plurality of fixing plates 5 is adjusted according to the size of the experimental instrument, the rotary disc drives a short rod 24 to rotate, the short rod 24 drives a seventh bevel gear 22 to rotate through an eighth bevel gear 23, a first bevel gear 6 drives a sixth bevel gear 20 to rotate through a rotary rod 21, the sixth bevel gear 20 drives a screw rod 3 to rotate through a fifth bevel gear 19, the screw rod 3 drives a plurality of screw sleeves 4 to move when rotating, the screw rods 4 move because the thread directions of two ends of the screw rod 3 are opposite, the moving directions of the screw sleeves 4 are opposite, the plurality of screw sleeves 4 drive a plurality of fixing plates 5 to move, so as to adjust the distance between a plurality of fixing plates 5, the screw rod 3 drives a plurality of first bevel gears 6 and a plurality of second bevel gears 7 to rotate, the first bevel gear 6 drives a first double-head bevel gear 8 to rotate, the first double-head bevel gear 8 drives a third bevel gear 9 to rotate a third bevel gear 9 to drive, when the plurality of fixing plates 5 are drawn close to the middle, the first rotating roller 12 releases the first shielding cloth 10, the second rotating roller 11 pulls the first shielding cloth 10 to shield the strip-shaped opening, the first shielding cloth 10 is tightly attached to the strip-shaped inner groove through the first magnetic block 41 and the first magnetic block 26, so that garbage is prevented from falling from the strip-shaped opening, the second bevel gear 7 drives the second double-ended bevel gear 13 to rotate, the second double-ended bevel gear 13 drives the fourth bevel gear 14 to rotate, the fourth bevel gear 14 drives the fourth rotating roller 16 to rotate, when the plurality of fixing plates 5 are drawn close to the middle, the plurality of fourth rotating rollers 16 tighten up the plurality of second shielding cloths 17, so that the second shielding cloths 17 are wound up to extend the second shielding cloth 17 next time, and the whole process can ensure the cleanness of the strip-shaped inner groove;
when a circuit board needs to be welded, the threaded rods 37 on the plurality of clamping devices 2 are aligned with the plurality of threaded holes, the third rotary disc 38 is rotated, the third rotary disc 38 drives the second worm 33 to rotate, the second worm 33 drives the second worm wheel 34 to rotate, the second worm wheel 34 drives the rotary drum 32 to rotate, the rotary drum 32 drives the square rod 36 to rotate through the square groove, the square rod 36 drives the threaded rods 37 to rotate, the threaded rods 37 are meshed with the threads, the clamping devices 2 fix the circuit board by adjusting the positions among the plurality of fixing plates 5, the second rotary disc 40 is rotated, the second rotary disc 40 drives the first worm 31 to rotate, the first worm 31 drives the first worm wheel 30 to rotate, the first worm wheel 30 drives the first abutting plate 35 to rotate through the cross rod 29, so as to adjust the inclination angle of the circuit board, and the first worm wheel 30 and the first worm 31 have a self-locking function and can fix the inclination angle of the circuit board, the circuit board welding device is convenient for students to weld the circuit board, does not need the students to keep the upright state, and avoids teaching quality reduction caused by fatigue of the students.
Referring to fig. 4-20, a wire stripping end device is further arranged on the experiment platform 1, and comprises a wire straightening mechanism and a wire stripping end mechanism, wherein the wire straightening mechanism comprises a longitudinal straightening mechanism 43 and a transverse straightening mechanism 44; butt joint pipes 44a with coincident central lines are arranged among the longitudinal straightening mechanism 43, the transverse straightening mechanism 44 and the wire stripping device, wires penetrate into the butt joint pipes 44a, then the wires are straightened through the longitudinal straightening mechanism 43 and the transverse straightening mechanism 44, and then the ends of the wires are cut off through the wire stripping mechanism.
The longitudinal straightening comprises a driving motor 43a, a vertical frame and two first rollers 43c, wherein the vertical frame comprises a base 43d, two fixed connecting seats 43e and two lifting connecting seats 43f, a rotating shaft 43g is horizontally and rotatably arranged on the base 43d, and the rotating shaft 43g is coaxially and fixedly connected with the output end of the driving motor 43a through a coupler; the driving motor 43a drives the rotating shaft 43g to rotate, so as to drive all the first rollers 43c to rotate, the cylindrical surfaces of the first rollers 43c are provided with annular grooves, the electric wires are inserted into the grooves between the two first rollers 43c, the two first rollers 43c roll and extrude the electric wires longitudinally and straighten the electric wires,
two fixed connection seats 43e fix respectively at the tip that base 43d is located first running roller 43c both sides, two lift connection seats 43f and two vertical sliding fit of fixed connection seat 43e one-to-one, lift connection seat 43f bottom fixed mounting has two vertical bar-shaped pieces 43h, fixed connection seat 43 e's side is provided with two vertical bar-shaped pieces 43h of confession two vertical bar-shaped pieces 43h respectively sliding fit's vertical slide 43j, insert between two first running rollers 43c when the electric wire, make the distance adjustment between two first running rollers 43c, lift connection seat 43f slides on vertical slide 43j on fixed connection seat 43e through vertical bar-shaped piece 43 h.
The center lines of the two first rollers 43c are horizontally arranged and are parallel to each other, the two first rollers 43c are sequentially arranged from top to bottom, the first roller 43c positioned above is rotatably connected with the two lifting connecting seats 43f through a first central shaft 43k along the center line of the first roller 43c, the first roller 43c positioned below is rotatably connected with the two fixed connecting seats 43e through a second central shaft 43m along the center line of the first roller 43c, and the two first rollers 43c can rotate.
The axes of the rotating shaft 43g, the first central shaft 43k and the second central shaft 43m are parallel to each other, the two ends of the first central shaft 43k are fixedly provided with second belt wheels 43p, the rotating shaft 43g is fixedly provided with two first belt wheels 43n, the two first belt wheels 43n are correspondingly connected with the two second belt wheels 43p in a one-to-one transmission manner through a first elastic synchronous belt 43b, when an electric wire is inserted between the two first belt wheels 43c, so that the distance between the two first belt wheels 43c is adjusted, the lifting connecting seat 43f slides on a vertical slide way 43j on the fixed connecting seat 43e through a vertical bar-shaped block 43h, at the moment, the two first elastic synchronous belts 43b pull the first belt wheels 43c positioned above to be attached to the electric wire, the driving motor 43a drives the rotating shaft 43g to rotate, the rotating shaft 43g drives the first belt wheels 43c positioned above to rotate through the two first elastic synchronous belts 43b, the electric wire is dragged to move towards the butt joint pipe 44a, and meanwhile, the first rollers 43c located below are driven to rotate passively, so that the two first rollers 43c rotate oppositely.
The transverse straightening comprises a transverse frame and two second rollers 44b, the transverse frame comprises a vertical base 44c, two fixed bearing seats 44d and two transverse bearing seats 44e, the vertical base 44c is rotatably provided with a vertical main shaft 44f, the bottom end of the vertical main shaft 44f is fixedly provided with a fourth belt pulley 44g, an output shaft of the driving motor 43a is fixedly provided with a first bevel gear 44h, the first bevel gear 44h is meshed with a second bevel gear 44j, the central line of the second bevel gear 44j is vertically arranged and is fixedly provided with a rotating shaft 44k along the central line of the second bevel gear 44j, the rotating shaft 44k is vertically arranged, the bottom end of the rotating shaft is rotatably arranged on the experiment platform 1 through a bearing seat 44p, the rotating shaft 44k is fixedly provided with a fifth belt pulley 44m, and the fifth belt pulley 44m is in transmission connection with the fourth belt pulley 44g through a main synchronous belt 44 n.
The driving motor 43a drives the rotating shaft 43g to rotate, which drives the first bevel gear 44h to rotate, so that the second bevel gear 44j passively rotates, and the fifth belt pulley 44m drives the fourth belt pulley 44g to rotate through the primary timing belt 44n, so that the vertical spindle 44f rotates.
Two fixed bearing seats 44d are respectively fixed at the end parts of the vertical base 44c positioned at the two sides of the second roller 44b, two transverse bearing seats 44e are in one-to-one corresponding vertical sliding fit with the two fixed bearing seats 44d, two transverse bar-shaped blocks 44r are fixedly installed at the bottom of the transverse bearing seat 44e, two horizontal slideways 44s for the two transverse bar-shaped blocks 44r to respectively slide fit are arranged on the side surface of the fixed bearing seat 44d, the cylindrical surface of the second roller 44b is also provided with a circular groove, an electric wire is inserted into the groove between the two second rollers 44b, and the electric wire is transversely extruded and straightened through rolling extrusion of the two second rollers 44 b.
When the electric wire is inserted between the two second rollers 44b so that the distance between the two second rollers 44b is adjusted, the transverse bearing housing 44e slides on the horizontal slide 44s on the fixed bearing housing 44d by the transverse bar-shaped block 44 r.
The central lines of the two second rollers 44b are vertically arranged and are parallel to each other, the two second rollers 44b are arranged along the axial direction of the rotating shaft 43g, the second roller 44b far away from the driving motor 43a is rotatably connected with the two transverse bearing seats 44e through a third central shaft 44t along the self central line, and the second roller 44b close to the driving motor 43a is rotatably connected with the two fixed bearing seats 44d through a fourth central shaft 44u along the self central line;
the axes of the vertical main shaft 44f, the third central shaft 44t and the fourth central shaft 44u are parallel to each other, the third pulleys 44w are fixedly installed at both ends of the third central shaft 44t, the two sixth pulleys 44x are fixedly installed on the vertical main shaft 44f, the two sixth pulleys 44x are in one-to-one transmission connection with the two third pulleys 44w through the second elastic synchronous belt 44y, when a wire is inserted between the two second pulleys 44b, so that the distance between the two second pulleys 44b is adjusted, the transverse bearing seat 44e slides on the horizontal slide way 44s on the fixed bearing seat 44d through the transverse bar-shaped block 44r, at this time, the two second elastic synchronous belts 44y pull the second pulley 44b on the transverse bearing seat 44e to be always attached to the wire, the vertical rotating shaft rotates, the rotating shaft 43g drives the second pulley 44b on the transverse bearing seat 44e to rotate through the two second elastic synchronous belts 44y, the electric wire is dragged to move continuously towards the butt joint pipe 44a, and meanwhile, the second roller 44b positioned below is driven to rotate passively, so that the two second rollers 44b rotate oppositely.
The wire stripping mechanism comprises a pressing component 42a and a wire stripping component 42b, wherein the pressing component 42a comprises a pressing cylinder 42c, a horizontal fixing plate 42d and a horizontal pressing plate 42e, the horizontal fixing plate 42d is erected on the experiment platform 1 through two vertical rods 42f, the horizontal pressing plate 42e is located right above the horizontal fixing plate 42d and is in sliding fit with the two vertical rods 42f, when the wire extends to a position between the horizontal pressing plate 42e and the horizontal fixing plate 42d, the pressing cylinder 42c drives the horizontal pressing plate 42e to press the end portion of the wire, and then the wire stripping component 42b cuts the paint leather at the end portion of the wire.
A protective cover body 42g is sleeved outside the wire stripping end device, a plurality of guide rods 42z are vertically arranged at the top of the protective cover body 42g, the downward-pressing air cylinder 42c is in sliding fit with the two guide rods 42z through an installation plate 42h, a choke plug is arranged at the top end of each guide rod 42z, a buffer spring 42j is sleeved between the choke plug and the installation plate 42h of each guide rod 42z, an output shaft of the downward-pressing air cylinder 42c faces downwards vertically and is fixedly connected with the bottom of the horizontal downward-pressing plate 42e through an inverted U-shaped frame 42k,
the electric wire thickness is different, and the electric wire is thick at that time, pushes down the output shaft of cylinder 42c and stretches out completely, then buffer spring 42j is compressed, can offset, and the difference of electric wire diameter is different can supply this distance difference through buffer spring 42j, guarantees to push down subassembly 42a and can both push down the electric wire of different thicknesses, solves the trouble of manual adjustment degree of pushing down.
The wire stripping assembly 42b comprises a rotary ribbon 42m, a rotary cutting knife 42n, an upper cutting knife 42p and a lower cutting knife 42r, the lower cutting knife 42r and the upper cutting knife 42p are crescent-shaped and opposite in opening, the planes of the lower cutting knife 42r and the upper cutting knife 42p are parallel to the center lines of all guide rods 42z, the opening of the lower cutting knife 42r faces upwards and is fixed on the side face of a horizontal fixing plate 42d, and the opening of the upper cutting knife 42p faces downwards and is fixed on the side face of a horizontal lower pressing plate 42 e. The upper and lower cutters 42p and 42r cut the ends of the wires horizontally and the upper and lower coats of the wires,
the rotary lath 42m is parallel to the plane of the upper cutting knife 42p, the upper cutting knife 42p is provided with a plurality of concentric arc-shaped sliding holes, the rotary lath 42m is fixedly provided with a plurality of fixing heads 42t which are inserted into all the arc-shaped sliding holes one by one, the rotary cutting knife 42n is of a disc structure and is rotatably arranged at one end of the rotary lath 42m close to the lower cutting knife 42r, the other end of the rotary lath 42m is provided with an arc-shaped rack 42u, the plane of the arc-shaped rack 42u is parallel to the plane of the upper cutting knife 42p, the top of the horizontal lower pressing plate 42e is provided with a horizontal sliding rail 42w, the length direction of the horizontal sliding rail 42w is parallel to the plane of the upper cutting knife 42p, a sliding block 42v is slidably arranged on the horizontal sliding rail 42w, a horizontal rack 42y meshed with the arc-shaped rack 42u is fixedly arranged on the sliding block 42v, the circle centers of all arc slide holes are located under the lower arc edge of the upper cutting knife 42p, the horizontal rack 42y is pushed to drive the arc rack 42u to rotate around the arc hole 42s, so that the rotary batten 42m drives the rotary cutting knife 42n to rotate around the electric wire, the rotary cutting knife 42n is used for cutting the horizontal two sides of the electric wire enamel, and the enamel at the end part of the electric wire can be cut.
The experiment platform 1 further comprises a circuit teaching mechanism, the circuit teaching mechanism comprises a teaching board 45a, a plurality of fulcrum components 45b and a plurality of connecting components 46, the teaching board 45a is provided with a plurality of parallel sliding grooves 45d, and all the fulcrum components 45b are in sliding fit with the sliding grooves 45d through sliding blocks 45 e; presenting a circuit structure as required, slidably mounting a plurality of fulcrum assemblies 45b on corresponding slideways, then respectively connecting a plurality of connecting assemblies 46 with the corresponding fulcrum assemblies 45b to form a circuit frame, and putting corresponding electric elements into the connecting assemblies 46 to form a complete circuit;
for example, four fulcrum assemblies 45b and four connecting assemblies 46 are connected end to form a diamond structure, and then four diodes are placed in the connecting assemblies 46, all of which are simultaneously directed to the anode of one of the diodes, so as to form a bridge rectifier circuit.
The fulcrum assembly 45b further comprises a fixing seat, a connecting block 45h with a plurality of octagonal prism structures and a plurality of metal rods 45j, the fixing seat comprises a fixing column 45k fixedly connected with the sliding block 45e, a threaded hole is formed in one end, far away from the sliding block 45e, of the fixing column 45k, the connecting block 45h is provided with a through hole for the butt joint to pass through along the center line of the connecting block, a bolt is integrally formed in one end of each metal rod 45j, a threaded connecting hole is formed in the other end of each metal rod 45j, insulating layers 45m are arranged on the outer sides of the fixing column 45k and the metal rods 45j, and the two ends of each insulating layer 45m on each metal.
When a plurality of connected connecting components 46 on one fulcrum component 45b interfere with each other, the fulcrum components 45b are accumulated by virtue of threaded connection between the metal rods 45j, connecting points of the fulcrums are increased, then the mutually interfered connecting components 46 are separated and connected onto the accumulated connecting blocks 45h, and the interference of the connecting components 46 is avoided.
Eight sides of connecting block 45h all are provided with articulated seat 45n, it is connected with metal articulated shaft 45p to rotate on articulated seat 45n, connecting block 45h is provided with the sheetmetal 45c of octagon with through-hole central line vertically one side, and the hole is dodged with the through-hole size is the same in sheetmetal 45 c's center, and sheetmetal 45c contradicts with all metal articulated shafts 45p simultaneously and is connected.
The metal lever 45j, the metal piece 45c, the metal hinge shaft 45p, the electrical connection wire 46n, and the member sandwiched in the member fixing frame 46a on the fulcrum assembly 45b form one current path, and if the member sandwiched in the member fixing frame 46a is a short-circuited wire, the connection assembly 46 corresponds to the electrical connection wire 46 n.
The connecting assembly 46 comprises an element fixing frame 46a with a rectangular structure and two electric connecting rods which are respectively fixed at two ends of the element fixing frame 46a, the electric connecting plates 46b are respectively installed at two ends of the inner side of the element fixing frame 46a, a U-shaped clamping portion 46c is further arranged in the element fixing frame 46a, two ends of the U-shaped clamping portion 46c can be simultaneously abutted against the side edges of the two electric connecting plates 46b, a plurality of first sliding rods 46d which are vertical to the length direction of the element fixing frame 46a are fixedly installed on the U-shaped clamping portion 46c, a through hole which allows the first sliding rod 46d to slide is formed in one side of the element fixing frame 46a, a second sliding rod 46e which is parallel to the central line of the first sliding rod 46d is fixedly installed on the other side of the element fixing frame 46a, a U-shaped plate 46f is arranged outside the element fixing frame 46a, and one, the other end of the inside of the U-shaped plate 46f is slidably fitted with a second slide bar 46e, and a return spring 46g is fitted around the second slide bar 46e between the U-shaped plate 46f and the element fixing frame 46 a.
Pulling the U-shaped plate 46f away from the component fixing block separates the two ends of the U-shaped clamping portion 46c from the two electrical connection plates 46b, the return spring 46g is compressed, then the two ends of the electrical component are respectively placed between the U-shaped clamping portion 46c and the two electrical connection plates 46b, then the U-shaped plate 46f is released, and the return spring 46g drives the U-shaped clamping portion 46c to clamp the two ends of the electrical component.
The electric connection rod comprises an outer square tube 46j and an inner square tube 46h in sliding fit with the inner side of the outer square tube 46j, a connecting shaft 46m is installed in the outer square tube 46j in a rotating mode, an electric connection wire 46n is wound on the connecting shaft 46m, a metal round tube 46k allowing a metal hinge shaft 45p to penetrate is arranged at one end, far away from the element fixing frame 46a, of the inner square tube 46h, one end of the electric connection wire 46n is electrically connected with one of the electric connection plates 46b, the other end of the electric connection wire 46n is in welding fit with the outer side of the metal round tube 46k, the metal rod 45j, the metal sheet 45c, the metal hinge shaft 45p, the electric connection wire 46n and elements clamped in the element fixing frame 46a form a current path, and if the connecting assembly elements clamped in the element fixing frame 46a are short connection wires, the element 46 is equivalent to the electric connection wire 46 n.
A circuit teaching method of an experimental device for electronic information engineering major comprises the following steps:
step S1, connecting a plurality of fulcrum assemblies 45b through a plurality of connecting assemblies 46 in advance to form a circuit frame, and clamping the electric element in the element fixing frame 46a of each corresponding connecting assembly 46 to form a complete circuit;
the plurality of fulcrum assemblies 45b are connected by the plurality of connecting assemblies 46 to form a plurality of circuits, and only 4 to 5 kinds of electric elements are required for some classical circuits, such as a diode limiter circuit, a zener diode regulator circuit, a bridge rectifier circuit, a diode detector circuit and the like.
Step S2: lead to a plurality of to connect the coupling assembling 46 of same fulcrum subassembly 45b to appear interfering too much when the circuit, add up through metal pole 45j threaded connection, increase a fulcrum subassembly 45b on fulcrum subassembly 45 b's basis, coupling assembling 46 with the fulcrum subassembly 45b electric connection who adds up of interfering, fulcrum subassembly 45b passes through metal pole 45j connection cooperation, it adds up to form fulcrum subassembly 45b, can form the circuit structure of a three-dimensional space structure with the connection of circuit, it is obvious to the teaching, can the audio-visual understanding how to connect between the electric elements, read the circuit when also conveniently teaching.
Step S3: the metal lever 45j, the metal piece 45c, the metal hinge shaft 45p, the electrical connection wire 46n, and the member sandwiched in the member fixing frame 46a on the fulcrum assembly 45b form a current path, and if the member sandwiched in the member fixing frame 46a is a short-circuited wire, the connection assembly 46 corresponds to the electrical connection wire 46 n; for a two electrical component parallel configuration, the length of the connecting member 46 is not sufficient, and the length of the connecting member 46 can be extended by shorting two electrical connection plates 46b within the member holding frame 46a of the connecting member 46, corresponding to the electrical connection line 46 n.
Step S4: the circuit is successfully combined, then two fulcrum assemblies 45b corresponding to the power supply fulcrum are taken to be connected with the power supply through the connecting assembly 46, the circuit frame is formed by combination, the electric element is clamped in the element fixing frame 46a, the circuit combination is completed, and the power supply can be electrically connected with the corresponding fulcrum assemblies 45 b.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
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| CN112927590B (en) | 2021-08-06 |
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