CN110459099B - Teaching aid for teaching in legal classroom - Google Patents
Teaching aid for teaching in legal classroom Download PDFInfo
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- CN110459099B CN110459099B CN201910779191.9A CN201910779191A CN110459099B CN 110459099 B CN110459099 B CN 110459099B CN 201910779191 A CN201910779191 A CN 201910779191A CN 110459099 B CN110459099 B CN 110459099B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
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Abstract
The invention discloses a teaching aid for teaching in a legal classroom, which comprises: a pair of bases; a pair of support rods; the pair of writing boards are both cuboid and arranged in a coplanar manner, the bottom surfaces of the pair of writing boards are respectively and coaxially and fixedly connected with the top ends of the pair of supporting rods, one side of one writing board, which is opposite to the other writing board, is horizontally inwards recessed and provided with an accommodating groove, and the other side of the other writing board, which is opposite to the accommodating groove, is recessed and provided with a bearing groove; the display bottom plate is arranged in the accommodating groove in a sliding mode along the depth direction of the accommodating groove, and the protruding end of the display bottom plate and the bearing groove are fixed along the depth direction of the bearing groove; the periphery of each display panel is matched with the inner periphery of the corresponding clamping groove and can be detachably clamped in the clamping grooves. The invention has the advantages of adjustable height and teaching time saving.
Description
Technical Field
The invention relates to the technical field of teaching aid equipment. More specifically, the invention relates to a teaching aid for teaching in a legal classroom.
Background
In the teaching process, describe the teaching knowledge through the blackboard writing, so that the student more directly perceivedly accepts the knowledge, be the means that the tradition was consistently adopted, traditional blackboard writing passes through the blackboard show, the blackboard face is fixed, self does not possess flexible function, can not effectively satisfy different height teachers and write high demand, furthermore, to legal teaching, the understanding of most legal provisions all need combine specific case and teacher's the extension of writing, the case can occupy a large amount of teaching time with writing of expanding knowledge, so, prepare one kind possess can dismantle the face, and do not occupy the teaching aid for the classroom teaching that has height-adjusting function of normal face, be the problem that needs to solve at present urgently.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a teaching aid for teaching in a legal classroom, which can adjust the height of the writing board through the arrangement of the supporting rod, the vertical channel, the positioning plug-in and the positioning through hole, can expand the writing area of the writing board through the arrangement of the display panel, can be detached relative to the teaching aid, is convenient for teachers to write cases needing a large amount of writing in advance or expand the cases and the like, and saves the teaching time.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a teaching aid for legal class lectures, comprising:
the pair of bases are oppositely arranged, the top surfaces of the pair of bases are both downwards sunken to form vertical channels, a pair of positioning plug-in units are arranged on the top surface of each base in the circumferential direction of the corresponding vertical channel, each positioning plug-in unit comprises a positioning block fixedly arranged on the top surface of the corresponding base and a positioning rod arranged in the positioning block in a sliding manner along the radial direction of the top end of the corresponding vertical channel, and the positioning rods of the pair of positioning plug-in units are positioned on the same straight line;
the pair of supporting rods are respectively arranged in the pair of vertical channels in a sliding mode, a plurality of groups of positioning assemblies are arranged on each supporting rod at equal intervals in the vertical direction of the supporting rod, each group of positioning assemblies comprise two insertion holes which are arranged in one-to-one correspondence with the corresponding pair of positioning plug-in units, the free end of each positioning rod can be inserted into/pulled out of the corresponding insertion hole, and when the pair of positioning plug-in units are respectively inserted into the pair of insertion holes positioned at the top, the bottom ends of the supporting rods are abutted to the bottom ends of the vertical channels;
the pair of writing boards are both cuboid and arranged in a coplanar manner, the bottom surfaces of the pair of writing boards are respectively and coaxially and fixedly connected with the top ends of the pair of supporting rods, one side of one writing board, which is opposite to the other writing board, is horizontally inwards recessed and provided with an accommodating groove, and the other side of the other writing board, which is opposite to the accommodating groove, is recessed and provided with a bearing groove;
the display bottom plate is arranged in the accommodating groove in a sliding mode along the depth direction of the accommodating groove, the length of the display bottom plate along the depth direction of the accommodating groove is slightly smaller than the sum of the depths of the accommodating groove and the receiving groove, and the protruding end of the display bottom plate and the receiving groove are fixed along the depth direction of the receiving groove, wherein a clamping groove is formed in the surface of the display bottom plate in a concave mode, and when the pair of writing boards move to the farthest distance in a relative mode, the clamping groove is not overlapped with the accommodating groove;
the periphery of each display panel is matched with the inner periphery of the corresponding clamping groove and can be detachably clamped in the clamping grooves.
Preferably, the lower side of the receiving groove penetrates through the corresponding writing board, a sliding groove is formed in the bottom end of the receiving groove along the vertical direction, and a sliding strip matched with the sliding groove is arranged at the protruding end of the display bottom board, so that the protruding end of the display bottom board and the receiving groove are fixed along the depth direction of the receiving groove, and the writing board with the receiving groove can slide upwards relative to the display bottom board.
Preferably, a pair of bases are internally provided with cuboid-shaped containing cavities, the bottom end of each vertical channel penetrates through the top surface of each corresponding containing cavity to be communicated with the corresponding containing cavity, the opposite side walls of the pair of containing cavities horizontally penetrate and extend oppositely to form horizontal channels, and the two horizontal channels are coaxially arranged, wherein the bottom end of each vertical channel is inwards condensed to form a supporting ring, the bottom end of each supporting rod is upwards sunken to form a nut groove, and the bottom end of each nut groove is upwards sunken to form a screw rod groove;
further comprising:
the main transmission assembly is matched with one of the bases and comprises a motor arranged in an accommodating cavity of the base, a main rotating rod fixedly connected with an output shaft of the motor, a main turbine coaxially and fixedly arranged on the main rotating rod, and a main worm matched with the main turbine and arranged, the main rotating rod horizontally penetrates through a horizontal channel of the base, the free end of the main rotating rod is flush with the open end of the horizontal channel, the bottom end of the main worm is fixedly connected with the bottom end of the corresponding accommodating cavity in a rotating manner, the top end of the main worm is fixedly connected with a main screw rod, a main screw rod nut is rotatably arranged on the main screw rod, the main screw rod and the corresponding screw rod groove are coaxially arranged, when a pair of corresponding positioning plug-in units are respectively inserted into a pair of inserting holes positioned at the top, the top end of the main screw rod is contacted with the top end of the corresponding screw rod groove, the main screw rod nut is positioned in the screw rod groove and is, the free end of the main rotating rod is inwards sunken and provided with a butt joint groove with a regular pentagon end surface;
the driven transmission component is matched with another base and arranged, the driven transmission component comprises a driven rotating rod which is rotatably arranged on the side wall of the base containing cavity and is coaxially arranged with the horizontal channel of the base, a driven worm wheel is coaxially and fixedly arranged on the driven rotating rod, a driven worm is matched and arranged with the driven worm wheel, the bottom end of the driven worm is fixedly connected with the bottom end of the corresponding containing cavity in a rotating way, a driven screw rod is fixedly connected with the top end of the driven worm, a driven screw rod nut is rotatably arranged on the driven screw rod and is coaxially arranged with the corresponding screw rod groove, when a corresponding pair of positioning plug-in components are respectively inserted into a pair of jack holes positioned at the top, the top end of the driven screw rod is contacted with the top end of the corresponding screw rod groove, the driven screw rod nut is positioned in the screw rod groove and is fixedly connected with the corresponding support rod, wherein the free end of the driven rotating rod horizontally penetrates through the horizontal channel of the base, and the penetrating end is arranged, when the pair of writing boards slide and are butted oppositely, the penetrating end of the slave rotating rod is positioned in the butting groove, and when the pair of writing boards slide back to enable the clamping groove not to be overlapped with the accommodating groove, the penetrating end of the slave rotating rod is not positioned in the butting groove.
Preferably, the slave rotating rod is a telescopic rod body formed by slidably sleeving at least two sleeves, the end part of the sleeve positioned at the outermost side of the slave rotating rod is fixedly connected with the side wall of the corresponding accommodating cavity in a rotating manner, the horizontal channel corresponding to the slave rotating rod is recessed upwards to form a movable groove, and a link mechanism is arranged in the movable groove and comprises: the top end of the rocker is hinged to a curved bar arranged on the side wall of the movable groove, one end of the rocker is rotatably and fixedly arranged on a rocker on the side wall of the movable groove, the curved bar penetrates through the curved groove along the length direction of the rocker, the other end of the rocker is slidably arranged in the curved groove, so that the rocker rotates to drive the curved bar to swing along a certain angle, the free end of the curved bar is hinged to a connecting rod, the free end of the connecting rod is rotatably connected with one end of a sleeve which is positioned on the innermost side of the driven rotating bar along the circumference of the sleeve, so that the curved bar swings to drive the driven rotating bar to stretch, wherein when the rocker rotates leftwards to be horizontal and a pair of writing boards slide and are butted, the free end of the driven rotating bar is positioned in the butting groove, and when the rocker rotates rightwards to be horizontal, the free end of the driven rotating bar is positioned in a corresponding.
Preferably, one end of the rocker is fixedly connected with a rocking handle, the rocking handle can rotatably penetrate through the corresponding base, and the penetrating end of the rocking handle is fixedly connected with a handle.
Preferably, the distance between any two adjacent upper and lower positioning assemblies corresponding to the main transmission assembly is 10cm, and the distance between any two adjacent upper and lower positioning assemblies corresponding to the auxiliary transmission assembly is 5 cm.
The invention at least comprises the following beneficial effects:
first, through bracing piece, vertical passageway, location plug-in components, positioning hole's setting, make the clipboard height-adjustable, through the setting of show panel, when the extensible clipboard write the area, the show panel can be dismantled for the teaching aid, the teacher of being convenient for writes the case that needs a large amount of writing in advance or expands etc. saves the teaching time.
The second, through motor, main drive assembly, follow setting up that drive assembly will two clipboard of effective control are synchronous flexible, and further, according to the demand, can rise two clipboards in step to the predetermined position after, make from the bull stick and break away from butt joint groove, this clipboard of rebound makes it correspond to the butt joint position and predetermines on the step, operates the motor once more and makes another clipboard move up to flush with this clipboard, or shift up to predetermined position.
And thirdly, the extension and retraction of the slave rotating rod are controlled through the arrangement of the link mechanism, so that the slave rotating rod is retracted when not in use, the protruding formation of binding is avoided, and the pair of writing boards can be arranged in a vertically staggered manner through retracting the slave rotating rod when the pair of writing boards are butted.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a teaching aid for legal classroom teaching according to one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a teaching aid for legal classroom teaching according to one embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a teaching aid for legal classroom teaching according to one embodiment of the present invention;
fig. 4 is a schematic structural diagram of the main transmission assembly according to one embodiment of the present invention.
The reference signs are: a base 1; a vertical channel 10; a ring 11; an accommodating chamber 12; a horizontal channel 13; a positioning block 20; a positioning rod 21; a jack 22; a support rod 3; a nut groove 30; a screw groove 31; a writing board 4; an accommodating groove 40; a receiving groove 41; a display base plate 5; a card slot 50; a display panel 6; a motor 70; a main rotating lever 71; a docking slot 72; a main turbine 73; a main worm 74; a main screw 75; a main feed screw nut 76; the slave lever 80; from the turbine 81; the slave screw 83; from the feed screw nut 84; a movable slot 90; a curved lever 91; a rocker 92; a curved groove 93; a connecting rod 94.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 4, the present invention provides a teaching aid for legal class lectures, comprising:
a pair of bases 1, a pair of bases 1 are oppositely arranged, the top surfaces of the bases 1 are both downwards sunken to form a vertical channel 10, the top surface of each base 1 is circumferentially provided with a pair of positioning plug-ins corresponding to the top end of the vertical channel 10, the positioning plug-ins are symmetrically arranged about the central axis of the vertical channel 10, each positioning plug-in comprises a positioning block 20 (a through hole which is arranged by penetrating along the radial direction of the top end circle of the corresponding vertical channel 10) fixedly arranged on the top surface of the corresponding base 1 and a positioning rod 21 which is arranged in the positioning block 20 by sliding along the radial direction of the top end of the corresponding vertical channel 10, namely the positioning rod 21 slides through the through hole, one end of the positioning rod 21 far away from the corresponding support rod 3 is fixedly connected with a nut so as to facilitate operation, an internal thread can be arranged in the through hole, the positioning rod 21 is provided with an external thread matched with the internal thread so that, wherein, the positioning rods 21 of a pair of positioning plug-in units are positioned on the same straight line;
a pair of bracing piece 3, set up the slide along its length direction in every vertical passageway 10, the lateral wall setting of bracing piece 3 with the sand grip that the slide corresponds, so that a pair of bracing piece 3 slides from top to bottom respectively and locates in a pair of vertical passageway 10, every bracing piece 3 sets up multiunit locating component along its direction of height equidistant from top to bottom, every locating component of group includes two jacks 22 that set up with a pair of location plug-in components one-to-one that corresponds of correspondence, wherein, the free end of every locating lever 21 can be pegged graft and establish/extract corresponding jack 22, when wherein arbitrary a set of locating component and one of them a pair of location plug-in components are located same height, this can peg graft and establish/extract this jack 22 rather than the corresponding that is located same height to the free end of location plug-in components, set up to the jack 22 that the fixed support 3: when a pair of positioning plug-in units are respectively inserted into a pair of plug holes 22 positioned at the top, the bottom ends of the support rods 3 are abutted against the bottom ends of the vertical channels 10, and the plug holes 22 positioned at the bottom can be set to be 15-23cm away from the corresponding support rods 3;
the pair of writing boards 4 are both cuboid and arranged in a coplanar manner, the bottom surfaces of the pair of writing boards 4 are respectively and coaxially and fixedly connected with the top ends of the pair of support rods 3, one side of one writing board 4, which is opposite to the other writing board 4, is horizontally inwards recessed to form an accommodating groove 40, the other side of the other writing board 4, which is opposite to the accommodating groove 40, is horizontally inwards recessed to form a bearing groove 41, and the upper side wall and the lower side wall of the accommodating groove 40 are provided with slideways along the depth direction of the accommodating groove 40;
the display bottom plate 5 is provided with sliding blocks matched with the sliding ways on the upper side and the lower side of the display bottom plate 5, so that the sliding blocks are arranged in the accommodating groove 40 in a sliding manner along the depth direction of the accommodating groove 40, one end, located on the accommodating groove 40, of the display bottom plate 5 is arranged to be incapable of sliding out of the accommodating groove 40, the end portion of the sliding way on the accommodating groove 40 is arranged to be a throat so as not to slide out of the sliding blocks, the length of the display bottom plate 5 along the depth direction of the accommodating groove 40 is slightly smaller than the depth sum of the accommodating groove 40 and the receiving groove 41, so that when a pair of writing boards 4 move oppositely to abut, the display bottom plate 5 is just completely accommodated in a cavity formed by the matching receiving groove 40 and the receiving groove 41, the protruding end of the display bottom plate 5 is fixed with the receiving groove 41 along the depth direction of the receiving, and the receiving groove 41 can not move in the depth direction relative to the receiving groove 41, wherein the surface of the display bottom plate 5 is recessed to have a locking groove 50, when the pair of writing boards 4 relatively move to the farthest distance, the locking groove 50 does not overlap with the receiving groove 40, that is, the locking groove 50 is shown;
at least one display panel 6, every display panel 6's periphery all matches with the interior week that corresponds draw-in groove 50 to can dismantle the card and locate in the draw-in groove 50, specifically can reach in display panel 6 circumference draw-in groove 50 circumference sets up the rubber circle, so that display panel 6 and draw-in groove 50 can dismantle the card relatively owing to frictional force and establish.
In the technical scheme, in order to move conveniently, a fixable roller can be arranged at the bottom end of each base 1, in the using process, a classroom can record information to be displayed in advance on at least one display panel 6 according to requirements, during normal teaching, a pair of writing boards 4 are in butt joint, after the teaching aid is adjusted to a preset height, blackboard writing teaching is carried out, when the information to be displayed needs to be used, one writing board 4 is moved, so that the clamping groove 50 is shown, the display panel 6 with the display information is clamped in the corresponding clamping groove 50 for displaying, and after displaying is finished, the display panel 6 can be replaced according to the requirements; adopt this kind of technical scheme, through bracing piece 3, vertical passageway 10, location plug-in components, positioning hole's setting, make 4 height-adjustable's of clipboard, through display panel 6's setting, when the writing area of extensible clipboard 4, display panel 6 can be dismantled for the teaching aid, the teacher of being convenient for writes in advance and need write a large amount of cases or expand etc. save the teaching time.
In another technical solution, a notch is formed by penetrating the writing board 4 corresponding to the receiving groove 41 at the lower side, a sliding groove is arranged at the bottom end (the side opposite to the other writing board 4) of the receiving groove 41 along the vertical direction, and a sliding strip matched with the sliding groove is arranged at the protruding end of the display base plate 5, so that the protruding end of the display base plate 5 and the receiving groove 41 are fixed along the depth direction of the receiving groove 41, and the writing board 4 with the receiving groove 41 can slide upwards relative to the display base plate 5, that is, the display base plate 5 can slide downwards relative to the writing board 4 with the receiving groove 41. By adopting the scheme, the upper and lower positions of the pair of writing boards 4 can be relatively moved and adjusted, so that the device is convenient to adapt to classroom steps, and the practicability of the device is improved.
In another technical scheme, a pair of bases 1 are internally provided with rectangular containing cavities 12, the bottom end of each vertical channel 10 penetrates through the top surface of each corresponding containing cavity 12 and is communicated with the corresponding containing cavity 12, the opposite side walls of the pair of containing cavities 12 horizontally penetrate and extend oppositely to form horizontal channels 13, the two horizontal channels 13 are coaxially arranged, wherein the bottom end of each vertical channel 10 is inwards condensed to form a supporting ring 11, the supporting ring 11 forms the bottom end of the vertical channel 10, the bottom end of each support rod 3 is upwards recessed and provided with a nut groove 30, the bottom end of each nut groove 30 is upwards recessed and provided with a screw rod groove 31, and the screw rod groove 31 and the nut groove 30 are communicated with each other and are coaxially arranged with the support rod 3;
further comprising:
the main transmission assembly is matched with one base 1, the main transmission assembly comprises a motor 70 arranged in an accommodating cavity 12 of the base 1, a main rotating rod 71 fixedly connected with an output shaft of the motor 70, a main worm wheel 73 coaxially and fixedly arranged on the main rotating rod 71, and a main worm 74 matched with the main worm wheel 73, the main rotating rod 71 horizontally penetrates through a horizontal channel 13 of the base 1, the free end of the main rotating rod is flush with the open end of the horizontal channel 13, the bottom end of the main worm 74 is fixedly connected with the bottom end of the corresponding accommodating cavity 12 in a rotating manner, the top end of the main worm 74 is fixedly connected with a main lead screw 75, a main lead screw nut 76 is rotatably arranged on the main lead screw 75, the main lead screw 75 is coaxially arranged with the corresponding lead screw groove 31, and when a pair of corresponding positioning plug-in pieces are respectively inserted into a pair of inserting holes 22 positioned at the top, the top end of the main lead screw 75 is contacted with the top end of, the main screw rod nut 76 is positioned in the screw rod groove 31 and is fixedly connected with the corresponding support rod 3, wherein the free end of the main rotating rod 71 is inwards sunken to form a butt joint groove 72 with a regular pentagon end surface;
the driven transmission component is matched with another base 1, the driven transmission component comprises a driven rotating rod 80 which is rotatably arranged on the side wall of the accommodating cavity 12 of the base 1 and is coaxially arranged with the horizontal channel 13 of the base 1, a driven worm wheel 81 is coaxially and fixedly arranged on the driven rotating rod 80, a driven worm is matched and arranged on the driven worm wheel 81, the bottom end of the driven worm is fixedly connected with the bottom end of the corresponding accommodating cavity 12 in a rotating way, the top end of the driven worm is fixedly connected with a driven screw rod 83, a driven screw rod nut 84 is rotatably arranged on the driven screw rod 83, the driven screw rod 83 is coaxially arranged with the corresponding screw rod groove 31, when a corresponding pair of positioning plug-in components are respectively inserted into the pair of inserting holes 22 positioned at the top, the top end of the driven screw rod 83 is contacted with the top end of the corresponding screw rod groove 31, the driven screw rod nut 84 is positioned in the screw rod groove 31 and is fixedly connected with the corresponding supporting rod 3, wherein the free end of the driven rotating rod 80 horizontally, the penetrating end is set to be a regular pentagonal prism shape matched with the abutting groove 72, when the pair of writing boards 4 are in opposite sliding abutting joint, the penetrating end of the secondary rotating rod 80 is located in the abutting groove 72, when the pair of writing boards 4 slide away from each other so that the clamping groove 50 is not overlapped with the accommodating groove 40, the penetrating end of the secondary rotating rod 80 is not located in the abutting groove 72, in the using process, when the height of the writing boards 4 needs to be adjusted, the pair of writing boards 4 are in opposite sliding abutting joint, the penetrating end of the secondary rotating rod 80 is located in the abutting groove 72, the positioning plug-in piece located in the insertion hole 22 is pulled out, the motor 70 is started, the motor 70 rotates to drive the driving wheel to rotate, the driving wheel rotates all the way to drive the main turbine 73, the worm main screw 74 and the main screw 75 to rotate and the main screw nut 76 to move upward/downward relative to the main screw 75 (according to the rotation judgment of the motor 70), thereby driving the supporting rod 3 to, the other path synchronously drives the slave rotating rod 80, the slave worm wheel 81, the slave worm, the slave screw rod 83 to rotate, and the slave screw rod nut 84 to move upwards/downwards relative to the slave screw rod 83, so as to drive the supporting rod 3 to move relative to the base 1, and after the synchronous movement to the preset position, the positioning of the supporting rod 3 is carried out through the positioning plug-in and the positioning assembly. Adopt this kind of scheme, through motor 70, main drive assembly, from two clipboard 4 synchronous flexible of effective control of setting that drive assembly will, and further, according to the demand, can rise two clipboard 4 after predetermined position in step earlier, make from bull stick 80 break away from butt joint groove 72, this clipboard 4 of rebound makes it correspond to sit opposite and predetermine on the step, operate motor 70 once more and make another clipboard 4 move up to flush with this clipboard 4, or move up to predetermined position.
In another technical solution, the slave rotating rod 80 is a telescopic rod body formed by slidably sleeving at least two sleeves, an end portion of the sleeve located at the outermost side of the slave rotating rod 80 is fixedly connected with a side wall of the corresponding accommodating cavity 12 in a rotating manner, the slave turbine 81 is fixedly arranged on the sleeve located at the outermost side of the slave rotating rod 80, and in order to improve the stability of the horizontal rotation of the slave rotating rod 80, the support rod 3 can be arranged in an auxiliary manner to support the slave rotating rod 80 and enable the slave rotating rod 80 to rotate relative to the support rod 3, and the horizontal channel 13 corresponding to the slave rotating rod 80 is recessed upwards to form a movable groove 90, a link 94 mechanism is arranged in the movable groove 90, and the link 94 mechanism includes: a curved bar 91 (strip bar body) with the top end hinged to the side wall of the movable groove 90, a rocker 92 (the rocker 92 can be rotatably arranged along the rotating fixing point) with one end rotatably fixed to the side wall of the movable groove 90, a curved groove 93 is arranged on the curved bar 91 along the length direction of the curved bar, the other end of the rocker 92 is slidably arranged in the curved groove 93, so that the rocker 92 rotates to drive the curved bar 91 to swing along a certain angle, the free end of the curved bar 91 is hinged to a connecting rod 94, the free end of the connecting rod 94 is rotatably connected with one end of the casing pipe which is positioned at the innermost side of the secondary rotating bar 80 along the circumferential line of the casing pipe, so that the curved bar 91 swings to drive the secondary rotating bar 80 to extend and retract, the hinged point at the top end of the curved bar 91 is positioned right above the rotating fixing point of the rocker 92, so that when the rocker 92 rotates to be vertical, the curved bar 91 is vertically arranged, and when the rocker 92 rotates to be horizontal, the connecting rod drives the slave rotating rod 80 to extend to the longest, when the rocker 92 rotates to the horizontal direction, the connecting rod drives the slave rotating rod 80 to contract to the shortest, wherein when the rocker 92 rotates to the horizontal direction leftwards and the pair of writing boards 4 slide oppositely and are in butt joint, the free end of the slave rotating rod 80 is located in the butt joint groove 72, when the rocker 92 rotates to the horizontal direction rightwards, the free end of the slave rotating rod 80 is located in the corresponding horizontal channel 13, and the movable groove 90 is arranged at an opening on one side opposite to the other base 1 so as to provide a space for the movement of the connecting rod 94. With this arrangement, the extension and retraction of the slave link 80 is controlled by the arrangement of the link 94 mechanism, so that the slave link 80 is retracted when not in use, thereby preventing the formation of a snagging due to the projection, and the pair of writing boards 4 can be arranged up and down in a staggered manner by retracting the slave link 80 when the pair of writing boards 4 are butted.
In another technical scheme, one end of the rocker 92 is fixedly connected with a rocking handle, the rocking handle can rotatably penetrate through the corresponding base 1, and the penetrating end is fixedly connected with a handle. With this arrangement, control of the rotation of the rocker 92 is achieved.
In another technical scheme, the distance between any two groups of positioning assemblies which are adjacent up and down and correspond to the main transmission assembly is 10cm, and the distance between any two groups of positioning assemblies which are adjacent up and down and correspond to the auxiliary transmission assembly is 5 cm. By adopting the scheme, the height dislocation can be conveniently adjusted.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. The application, modifications and variations of the teaching aid for legal class teaching according to the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. Teaching aid is used in law classroom teaching, its characterized in that includes:
the pair of bases are oppositely arranged, the top surfaces of the pair of bases are both downwards sunken to form vertical channels, a pair of positioning plug-in units are arranged on the top surface of each base in the circumferential direction of the corresponding vertical channel, each positioning plug-in unit comprises a positioning block fixedly arranged on the top surface of the corresponding base and a positioning rod arranged in the positioning block in a sliding manner along the radial direction of the top end of the corresponding vertical channel, and the positioning rods of the pair of positioning plug-in units are positioned on the same straight line;
the pair of supporting rods are respectively arranged in the pair of vertical channels in a sliding mode, a plurality of groups of positioning assemblies are arranged on each supporting rod at equal intervals in the vertical direction of the supporting rod, each group of positioning assemblies comprise two insertion holes which are arranged in one-to-one correspondence with the corresponding pair of positioning plug-in units, the free end of each positioning rod can be inserted into/pulled out of the corresponding insertion hole, and when the pair of positioning plug-in units are respectively inserted into the pair of insertion holes positioned at the top, the bottom ends of the supporting rods are abutted to the bottom ends of the vertical channels;
the pair of writing boards are both cuboid and arranged in a coplanar manner, the bottom surfaces of the pair of writing boards are respectively and coaxially and fixedly connected with the top ends of the pair of supporting rods, one side of one writing board, which is opposite to the other writing board, is horizontally inwards recessed and provided with an accommodating groove, and the other side of the other writing board, which is opposite to the accommodating groove, is recessed and provided with a bearing groove;
the display bottom plate is arranged in the accommodating groove in a sliding mode along the depth direction of the accommodating groove, the length of the display bottom plate along the depth direction of the accommodating groove is slightly smaller than the sum of the depths of the accommodating groove and the receiving groove, and the protruding end of the display bottom plate and the receiving groove are fixed along the depth direction of the receiving groove, wherein a clamping groove is formed in the surface of the display bottom plate in a concave mode, and when the pair of writing boards move to the farthest distance in a relative mode, the clamping groove is not overlapped with the accommodating groove;
the periphery of each display panel is matched with the inner periphery of the corresponding clamping groove and is detachably clamped in the clamping groove;
the lower side of the bearing groove penetrates through the corresponding writing board, a sliding groove is formed in the bottom end of the bearing groove along the vertical direction, and a sliding strip matched with the sliding groove is arranged at the protruding end of the display bottom board, so that the protruding end of the display bottom board and the bearing groove are fixed along the depth direction of the bearing groove, and the writing board with the bearing groove can slide upwards relative to the display bottom board;
a pair of bases are internally provided with cuboid containing cavities, the bottom end of each vertical channel penetrates through the top surface of each corresponding containing cavity to be communicated with the corresponding containing cavity, the opposite side walls of the pair of containing cavities horizontally penetrate and extend oppositely to form horizontal channels, and the two horizontal channels are coaxially arranged, wherein the bottom end surface of each vertical channel is inwards condensed to form a supporting ring, the bottom end of each supporting rod is upwards sunken to form a nut groove, and the bottom end of each nut groove is upwards sunken to form a screw rod groove;
further comprising:
the main transmission assembly is matched with one of the bases and comprises a motor arranged in an accommodating cavity of the base, a main rotating rod fixedly connected with an output shaft of the motor, a main turbine coaxially and fixedly arranged on the main rotating rod, and a main worm matched with the main turbine and arranged, the main rotating rod horizontally penetrates through a horizontal channel of the base, the free end of the main rotating rod is flush with the open end of the horizontal channel, the bottom end of the main worm is fixedly connected with the bottom end of the corresponding accommodating cavity in a rotating manner, the top end of the main worm is fixedly connected with a main screw rod, a main screw rod nut is rotatably arranged on the main screw rod, the main screw rod and the corresponding screw rod groove are coaxially arranged, when a pair of corresponding positioning plug-in units are respectively inserted into a pair of inserting holes positioned at the top, the top end of the main screw rod is contacted with the top end of the corresponding screw rod groove, the main screw rod nut is positioned in the screw rod groove and is, the free end of the main rotating rod is inwards sunken and provided with a butt joint groove with a regular pentagon end surface;
the driven transmission component is matched with another base and arranged, the driven transmission component comprises a driven rotating rod which is rotatably arranged on the side wall of the base containing cavity and is coaxially arranged with the horizontal channel of the base, a driven worm wheel is coaxially and fixedly arranged on the driven rotating rod, a driven worm is matched and arranged with the driven worm wheel, the bottom end of the driven worm is fixedly connected with the bottom end of the corresponding containing cavity in a rotating way, a driven screw rod is fixedly connected with the top end of the driven worm, a driven screw rod nut is rotatably arranged on the driven screw rod and is coaxially arranged with the corresponding screw rod groove, when a corresponding pair of positioning plug-in components are respectively inserted into a pair of jack holes positioned at the top, the top end of the driven screw rod is contacted with the top end of the corresponding screw rod groove, the driven screw rod nut is positioned in the screw rod groove and is fixedly connected with the corresponding support rod, wherein the free end of the driven rotating rod horizontally penetrates through the horizontal channel of the base, and the penetrating end is arranged, when the pair of writing boards slide and are butted oppositely, the penetrating end of the slave rotating rod is positioned in the butting groove, and when the pair of writing boards slide back to enable the clamping groove not to be overlapped with the accommodating groove, the penetrating end of the slave rotating rod is not positioned in the butting groove.
2. A teaching aid as claimed in claim 1, wherein the slave rotating rod is a telescopic rod body formed by slidably sleeving at least two sleeves, the end of the sleeve on the outermost side of the slave rotating rod is fixedly connected with the side wall of the corresponding accommodating cavity in a rotating manner, a horizontal channel corresponding to the slave rotating rod is recessed upwards to form a movable groove, and a link mechanism is arranged in the movable groove and comprises: the top end of the rocker is hinged to a curved bar arranged on the side wall of the movable groove, one end of the rocker is rotatably and fixedly arranged on a rocker on the side wall of the movable groove, the curved bar penetrates through the curved groove along the length direction of the rocker, the other end of the rocker is slidably arranged in the curved groove, so that the rocker rotates to drive the curved bar to swing along a certain angle, the free end of the curved bar is hinged to a connecting rod, the free end of the connecting rod is rotatably connected with one end of a sleeve which is positioned on the innermost side of the driven rotating bar along the circumference of the sleeve, so that the curved bar swings to drive the driven rotating bar to stretch, wherein when the rocker rotates leftwards to be horizontal and a pair of writing boards slide and are butted, the free end of the driven rotating bar is positioned in the butting groove, and when the rocker rotates rightwards to be horizontal, the free end of the driven rotating bar is positioned in a corresponding.
3. A teaching aid as claimed in claim 2 wherein the rocker is secured at one end to a rocker which is rotatable through the respective base and secured at the through end to a handle.
4. A teaching aid as claimed in claim 3 wherein the distance between any two adjacent sets of positioning members is 10cm, and the distance between any two adjacent sets of positioning members is 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779191.9A CN110459099B (en) | 2019-08-22 | 2019-08-22 | Teaching aid for teaching in legal classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779191.9A CN110459099B (en) | 2019-08-22 | 2019-08-22 | Teaching aid for teaching in legal classroom |
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| Publication Number | Publication Date |
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| CN110459099A CN110459099A (en) | 2019-11-15 |
| CN110459099B true CN110459099B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910779191.9A Active CN110459099B (en) | 2019-08-22 | 2019-08-22 | Teaching aid for teaching in legal classroom |
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| CN (1) | CN110459099B (en) |
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| CN206340212U (en) * | 2016-12-20 | 2017-07-18 | 漯河医学高等专科学校 | A kind of efficient Graphic Panel of constitutional jurisprudence |
| CN107170299A (en) * | 2017-06-14 | 2017-09-15 | 成都冠禹科技有限公司 | One kind teaching panel |
| CN107856443A (en) * | 2017-12-07 | 2018-03-30 | 广州小造电子商务有限公司 | A kind of meeting presentation device |
| CN207765024U (en) * | 2017-08-14 | 2018-08-24 | 江西工业贸易职业技术学院 | A kind of instructional device of economic management |
| CN208400347U (en) * | 2017-12-27 | 2019-01-18 | 南昌工程学院 | Device for new media teaching |
| CN208985397U (en) * | 2018-06-20 | 2019-06-14 | 周嘉 | A kind of Accounting Course showing stand |
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2019
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|---|---|---|---|---|
| CN203110652U (en) * | 2012-12-07 | 2013-08-07 | 刘东溟 | Multifunctional combined push-pull writing board |
| CN205354444U (en) * | 2016-01-28 | 2016-06-29 | 黑龙江***职业学院 | Law is teaching aid for classroom teaching |
| CN206340212U (en) * | 2016-12-20 | 2017-07-18 | 漯河医学高等专科学校 | A kind of efficient Graphic Panel of constitutional jurisprudence |
| CN107170299A (en) * | 2017-06-14 | 2017-09-15 | 成都冠禹科技有限公司 | One kind teaching panel |
| CN207765024U (en) * | 2017-08-14 | 2018-08-24 | 江西工业贸易职业技术学院 | A kind of instructional device of economic management |
| CN107856443A (en) * | 2017-12-07 | 2018-03-30 | 广州小造电子商务有限公司 | A kind of meeting presentation device |
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| CN208985397U (en) * | 2018-06-20 | 2019-06-14 | 周嘉 | A kind of Accounting Course showing stand |
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|---|---|
| CN110459099A (en) | 2019-11-15 |
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