CN108437701B - Caster structure and multifunctional teaching tool for classroom teaching - Google Patents
Caster structure and multifunctional teaching tool for classroom teaching Download PDFInfo
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- CN108437701B CN108437701B CN201810226009.2A CN201810226009A CN108437701B CN 108437701 B CN108437701 B CN 108437701B CN 201810226009 A CN201810226009 A CN 201810226009A CN 108437701 B CN108437701 B CN 108437701B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
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Abstract
The invention discloses truckle structures and a multifunctional teaching tool for classroom teaching, wherein the truckle structures comprise a wheel carrier main body, a movable roller, a fixed cushion block, an adjusting bolt and an adjusting hand wheel, the wheel carrier main body is provided with a roller mounting cavity and a cushion block mounting cavity, the movable roller is rotatably mounted in the roller mounting cavity, the fixed cushion block is slidably mounted in the cushion block mounting cavity, the fixed cushion block is provided with a lifting sliding guide groove, the wall of the cushion block mounting cavity is provided with a lifting sliding guide block matched with the lifting sliding guide groove, the fixed cushion block is provided with a threaded hole, the end of the adjusting bolt is screwed in the threaded hole, the other end of the adjusting bolt is fixedly connected with the adjusting hand wheel, the adjusting hand wheel drives the adjusting bolt to rotate, and the fixed cushion block slides along the wall of the cushion block mounting cavity through the matching of the lifting sliding guide groove and the lifting sliding guide block.
Description
Technical Field
The invention relates to caster structures and a multifunctional teaching aid for classroom teaching.
Background
The blackboard made of wood boards or ground glass can be written on the blackboard by using specific writing materials such as chalk, and is mostly black, dark green, white or beige, and over two hundred years, the blackboard is developed from the earliest that black paint is coated on the surface of a hard object such as wood boards and cement to the modern terrazzo glass, color coated steel plates and composite materials, which proves the world education industry, and is a man-made knowledge spreading and education spreading work.
The lecture table is generally a table used for a lecture by a lecturer. The lecturer usually places the props that need to be used when being used for the speech on the lectern, for example, in the campus, the articles used in daily teaching such as chalk, chalk eraser, ruler etc. are usually placed on the lectern.
From the above description, especially in campus, the blackboard and the teacher desk are two indispensable objects for teachers in teaching.
However, the conventional blackboard generally has only simple writing and displaying functions, and the conventional lectern generally has only simple article placing functions, so that kinds of multifunctional teaching aids for classroom teaching are provided, and the multifunctional teaching aids can be used as the blackboard and can also be used as the lectern, so that the blackboard or the lectern can be switched to use according to the actual teaching condition.
, on the basis that the multifunctional teaching aid realizes the switching use of the blackboard or the teacher desk, situations can be met, the panel used as the blackboard or the teacher desk needs to be moved and can reach a proper position by moving the panel, so that a teacher can obtain a better teaching effect in a classroom, and the panel needs to be fixed after being moved to the proper position to prevent the panel from moving randomly.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides caster structures and a multifunctional teaching tool for classroom teaching, wherein the panel can be easily moved in aspect, and the panel can be fixed in position in aspect.
The purpose of the invention is realized by the following technical scheme:
kinds of caster structures comprise a wheel carrier main body, a movable roller, a fixed cushion block, an adjusting bolt and an adjusting hand wheel;
the wheel carrier main body is provided with a roller mounting cavity and a cushion block mounting cavity;
the movable roller is rotatably arranged in the roller mounting cavity;
the fixed cushion block is slidably arranged in the cushion block mounting cavity, a lifting sliding guide groove is formed in the fixed cushion block, and a lifting sliding guide block matched with the lifting sliding guide groove is arranged on the wall of the cushion block mounting cavity;
a threaded hole is formed in the fixed cushion block, the end of the adjusting bolt is screwed in the threaded hole, and the other end of the adjusting bolt is fixedly connected with the adjusting hand wheel;
the adjusting hand wheel drives the adjusting bolt to rotate, and the fixed cushion block slides along the cavity wall of the cushion block mounting cavity through the matching of the lifting sliding guide groove and the lifting sliding guide block.
In embodiments, the caster structure further comprises a support plate rotatably disposed on the wheel carriage body.
In embodiments, the support plate is rotatably mounted to the wheel carrier body by bearings.
In of these embodiments, the moving roller is a spherical roller.
In of these embodiments, the moving roller is a circular ring roller.
In embodiments, the moving roller is wrapped with a rubber sleeve.
In embodiments, the fixing cushion block is an elastic rubber block structure.
A multifunctional teaching tool for classroom teaching comprises the above caster structure, a support structure, a splicing panel structure, a connecting piece, and a second connecting piece;
the supporting structure comprises an th supporting rod and a second supporting rod, wherein the th supporting rod and the second supporting rod are arranged at intervals;
the th connecting piece is arranged on the th supporting rod in a sliding and fixed way, and the second supporting rod is arranged on the second supporting rod in a sliding and fixed way;
the spliced panel structure is positioned between the th connecting piece and the second connecting piece, the two ends of the spliced panel structure form a th connecting end and a second connecting end, the spliced panel structure is rotatably and fixedly arranged on the th connecting piece through the th connecting end, and the spliced panel structure is rotatably and fixedly arranged on the second connecting piece through the second connecting end;
the end of the th supporting rod is provided with the caster structure, and the end of the second supporting rod is provided with the caster structure.
In embodiments, the end of the support rod is mounted with two of the caster structures, and the end of the second support rod is mounted with two of the caster structures.
According to the caster structures, the structures of all parts are optimally designed by arranging the wheel carrier main body, the movable roller, the fixed cushion block, the adjusting bolt and the adjusting hand wheel, so that the panel can be easily moved in the aspect of , and the panel can be fixed in position in the aspect of .
Drawings
FIG. 1 is a block diagram of a multi-purpose teaching aid for classroom teaching in accordance with an embodiment of the present invention;
FIG. 2 is a block diagram of the tiled panel structure shown in FIG. 1;
FIG. 3 is an exploded view of the tiled panel construction shown in FIG. 2;
FIG. 4 is a partial view of the tiled panel construction shown in FIG. 3;
FIG. 5 is an enlarged view of the tiled panel construction shown in FIG. 3 at A;
FIG. 6 is a block diagram of the caster wheel structure shown in FIG. 1;
FIG. 7 is a partial view () of the caster structure shown in FIG. 6;
FIG. 8 is a partial view (two) of the caster structure shown in FIG. 6;
FIG. 9 is a block diagram of paint display fixtures mounted on a tiled panel structure;
FIG. 10 is a block diagram of the top drive configuration shown in FIG. 9;
FIG. 11 is a partial view of the top drive configuration shown in FIG. 10;
FIG. 12 is a view showing the structure of an kinds of stationery storage case;
fig. 13 is a partial view of the stationery storage case shown in fig. 12;
FIG. 14 is a block diagram of the turntable shown in FIG. 12;
FIG. 15 is a block diagram of the th connector of FIG. 1 engaged with a th brace ();
FIG. 16 is a second view showing the th connector of FIG. 9 engaged with a th supporting rod;
FIG. 17 is a partial view () of the -th connector shown in FIG. 9;
fig. 18 is a partial view (two) of the th connector shown in fig. 9.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is noted that when an element is referred to as being "secured to" another elements, it can be directly on the other elements or intervening elements may also be present, that when elements are referred to as being "connected" to another elements, it can be directly connected to another elements or intervening elements may be present.
The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, the term "and/or" as used herein includes any and all combinations of or more of the associated listed items.
As shown in figure 1, A multifunctional teaching aid 10 for classroom teaching comprises a supporting structure 11, a splicing type panel structure 12, a connecting piece 13 and a second connecting piece 14.
The supporting structure 11 includes an th supporting rod 100 and a 200 th supporting rod, wherein the th supporting rod 100 and the 200 th supporting rod are spaced apart from each other.
The th connector 13 is slidably and fixedly arranged on the th supporting rod 100, and the second supporting rod 14 is slidably and fixedly arranged on the second supporting rod 200.
The spliced panel structure 12 is located between the th connecting piece 13 and the second connecting piece 14, the connecting end 15 and the second connecting end 16 are formed at the two ends of the spliced panel structure 12, the spliced panel structure 12 can be fixedly arranged on the th connecting piece 13 through the th connecting end 15, and the spliced panel structure 12 can be fixedly arranged on the second connecting piece 14 through the second connecting end 16.
Next, a method of using the multifunctional teaching aid 10 for classroom teaching will be described:
when the multifunctional teaching aid 10 for classroom teaching needs to be used as a lectern, articles used for daily teaching can be placed on the spliced panel structure 12 by rotating the spliced panel structure 12 to enable the plate surface of the spliced panel structure 12 to be parallel to the horizontal plane;
it should be noted that, when the multifunctional teaching aid 10 for classroom teaching is used as a lectern, the board surface of the spliced panel structure 12 is not and is necessarily parallel to the horizontal plane, the board surface of the spliced panel structure 12 may have a slight inclination angle with the horizontal plane, as long as the object bearing can be realized, and the angle of the teaching person can be adjusted according to the actual situation;
when the multifunctional teaching aid 10 for classroom teaching needs to be used as a blackboard, the spliced panel structure 12 is rotated to ensure that the board surface of the spliced panel structure 12 is vertical to the horizontal plane, and specific writing materials such as chalk can be used for writing on the board, and writing and displaying characters can be carried out;
it should be noted that, when the multifunctional teaching aid 10 for classroom teaching is used as a blackboard, the board surface of the split joint type panel structure 12 is not and is not necessarily perpendicular to the horizontal plane, the board surface of the split joint type panel structure 12 may have a slight inclination angle with the horizontal plane, so long as writing and displaying can be realized, and the angle of the teaching person can be adjusted according to actual conditions.
In the use process of the multifunctional teaching aid 10 for classroom teaching, situations are encountered, and no matter the spliced panel structure 12 is used as a blackboard or a teacher's desk, the adjustment of the area of the board is required according to the actual use environment, for example, when the spliced panel structure 12 is used as a blackboard, the area of the board needs to be enlarged if -point characters are written on the board, and if the board with the overlarge area cannot be placed due to the limitation of the field, the area of the board needs to be reduced.
As shown in fig. 2, 3 and 4, specific structures of the types of tiled panel structures 12 are explained below:
splice panel structure 12 comprises a plurality of splice plates 300 spliced in series, in this embodiment, the number of splice plates 300 is three.
Each splice plate 300 has two opposite plate surfaces 310 (as shown in FIG. 4), each splice plate 300 has a through connecting hole 320, the connecting hole 320 is located between the two opposite plate surfaces 310, and the central axis of the connecting hole 320 is parallel to the plate surfaces 310. that is, the connecting hole 320 penetrates through the splice plate 300, and the connecting hole 320 penetrates through the end of the splice plate 300 from the end of the splice plate 300.
The two ends of the connecting through hole 320 form a plug end 321 and a clip end 322 respectively.
The tiled panel structure 12 also includes a clip 400.
The clamping end 322 of the connecting through hole 320 is provided with a clamping groove 323.
The buckle 400 is inserted into the insertion end 321 of the connecting through hole 320 of the splice plates 300, wherein the splice plate 300 is clamped with the clamping groove 323 of another splice plate 300 through the buckle 400, so that two adjacent splice plates 300 are connected.
Therefore, through the connection through hole 320, when two splicing plates 300 need to be connected, splicing plates 300 are connected with the clamping groove 323 of another splicing plates 300 through the buckle 400 in a clamped mode, when the two splicing plates 300 need to be separated, the buckle 400 can be pressed to enable the buckle 400 to be separated from the clamping groove 323, and therefore the two splicing plates 300 can be rapidly assembled and disassembled through the matching mode of the buckle and the clamping groove, teaching personnel can assemble and disassemble the splicing plates 300 in any number according to actual conditions, and the using effect is improved.
, the number of the connecting through holes 320 is multiple, the central axes of the connecting through holes 320 are parallel to each other, and the connecting through holes 320 are arranged at intervals in sequence, and the connecting strength of two adjacent splice plates 300 is greatly improved by arranging the connecting through holes 320 and correspondingly matching the buckles 400.
As shown in fig. 5, in step , the clip 400 includes an insertion column 410 and a clip head 420 disposed at an end of the insertion column 410 , the clip head 420 includes two elastic clips 421, an elastic restoring space 422 is formed between the two elastic clips 421, the clip 323 penetrates the board 310 and is communicated with the connecting through hole 320, and the elastic clips 421 are accommodated in the clip 323, so that the two elastic clips 421 enter the connecting through hole 320 after being elastically deformed, and when the elastic clips 421 reach the clip 323, the elastic clips restore the elastic deformation to accommodate the elastic clips 421 in the clip 323, thereby achieving the clipping connection of the two splice boards 300.
As shown in FIG. 5, at step , the resilient latch 421 has an inclined guiding surface 423. by providing the inclined guiding surface 423, the resilient latch 421 can enter the through-hole 320 more smoothly and quickly to achieve the snap-fit.
As shown in fig. 5, steps are further carried out, in this embodiment, a plurality of slots 323 are sequentially spaced at the clip end 322 along the extending direction of the connecting through hole 320, so that the depth of the clip 400 entering the connecting through hole 320 can be selected according to actual conditions by providing the plurality of slots 323, thereby adjusting the distance between the two splice plates 300, adjusting the area of the splice plates 300 after splicing, and further increasing the use effect steps.
In the using process of the multifunctional teaching aid 10 for classroom teaching, situations are encountered, and no matter the spliced panel structure 12 is used as a blackboard or a teacher desk, the spliced panel structure 12 needs to be moved and can reach a proper position by moving the spliced panel structure, so that a teacher can obtain a better teaching effect in a classroom.
As shown in fig. 6, 7 and 8, specific configurations of caster structures 500 will be described below:
A caster structure 500 comprises a wheel frame body 510, a movable roller 520, a fixed cushion block 530, an adjusting bolt 540 and an adjusting handwheel 550.
As shown in fig. 8, the wheel frame body 510 is provided with a roller mounting cavity 511 and a pad mounting cavity 512.
The moving roller 520 is rotatably installed in the roller installation chamber 511.
As shown in fig. 6 and 7, the fixed block 530 is slidably mounted in the block mounting cavity 512, a lifting/lowering sliding guide groove 531 is formed in the fixed block 530, and a lifting/lowering sliding guide block 513 engaged with the lifting/lowering sliding guide groove 531 is provided on the wall of the block mounting cavity 512.
The fixing block 530 is provided with a threaded hole (not shown), the end of the adjusting bolt 540 is screwed into the threaded hole, and the other end of the adjusting bolt 540 is fixedly connected with the adjusting handwheel 550.
The adjusting handwheel 550 drives the adjusting bolt 540 to rotate, and the fixed cushion block 530 slides along the cavity wall of the cushion block mounting cavity 512 through the matching of the lifting sliding guide groove 531 and the lifting sliding guide block 513.
The end of the supporting bar 100 is provided with the above-mentioned caster structure 500, and the end of the second supporting bar 200 is provided with the above-mentioned caster structure 500. in this embodiment, the end of the supporting bar 100 is provided with two caster structures 500, and the end of the second supporting bar 200 is provided with two caster structures 500, so that the balance of the whole multifunctional teaching aid 10 for classroom teaching can be well maintained.
The method of use of the caster structure 500 is described below:
when the spliced panel structure 12 needs to be moved to reach a proper position, a teacher can obtain a better teaching effect in a classroom, and a student can obtain a better listening effect, the spliced panel structure 12 needs to be moved through the caster structure 500, specifically, the adjusting hand wheel 550 is screwed, the adjusting hand wheel 550 drives the adjusting bolt 540 to rotate, the fixed cushion block 530 slides along the cavity wall of the cushion block mounting cavity 512 through the matching of the lifting sliding guide groove 531 and the lifting sliding guide block 513, so that the fixed cushion block 530 is separated from the contact with the ground, and after the fixed cushion block 530 is separated from the contact with the ground, the movable roller 520 can easily move the whole multifunctional teaching tool 10 for classroom teaching to reach the designated position;
after the splicing type panel structure 12 reaches the designated position, the splicing type panel structure needs to be fixed to prevent the splicing type panel structure from moving randomly, specifically, the adjusting hand wheel 550 is screwed in the opposite direction, the adjusting hand wheel 550 drives the adjusting bolt 540 to rotate, the fixing cushion block 530 slides in the opposite direction along the cavity wall of the cushion block mounting cavity 512 through the matching of the lifting sliding guide groove 531 and the lifting sliding guide block 513, so that the fixing cushion block 530 is separated from the ground to be in contact with the ground again, and after the fixing cushion block 530 is in contact with the ground again, the multifunctional teaching tool 10 for classroom teaching can be integrally fixed to prevent the multifunctional teaching tool from moving randomly.
As shown in fig. 6, , the caster structure 500 further includes a support plate 560, the support plate 560 is rotatably mounted on the wheel frame body 510. in this embodiment, the support plate 560 is rotatably mounted on the wheel frame body 510 via a bearing, so that the wheel frame body 510 is mounted on the th support bar 100 and the second support bar 200 via the support plate 560, so that the multifunctional teaching aid 10 for classroom teaching can be changed in direction during the whole moving process.
In this embodiment, the movable roller 520 is a circular roller, and the movable roller 520 is wrapped by a rubber sleeve (not shown), so that the multifunctional teaching aid 10 for classroom teaching can obtain a better mute effect in the whole movable process by setting the rubber sleeve. In other embodiments, the moving roller 520 is a spherical roller.
In this embodiment, the fixing pad 530 is an elastic rubber block structure, so that the multifunctional teaching aid 10 for classroom teaching can obtain a better fixing effect.
As shown in FIG. 7, in , the adjusting handwheel 550 includes a screwing sleeve 551 and a plurality of anti-slip blocks 552, the screwing sleeve 551 is sleeved on the adjusting bolt 540, the anti-slip blocks 552 are distributed in an annular array around the central axis of the screwing sleeve 551, and the two adjacent anti-slip blocks 552 are spaced apart from each other to form an anti-slip groove 553. thus, by providing the plurality of anti-slip blocks 552, the anti-slip blocks 552 are distributed in an annular array around the central axis of the screwing sleeve 551, and the two adjacent anti-slip blocks 552 are spaced apart from each other to form the anti-slip groove 553, the screwing sleeve 551 can be easily screwed, and the adjusting bolt 540 is driven to rotate, thereby achieving the lifting movement of the fixing pad 530.
In the use of the multifunctional teaching aid 10 for classroom teaching, situations are encountered, and particularly for teachers teaching arts, they often need to show paintings, and can achieve a better teaching effect by explaining the shown paintings on site.
As shown in FIG. 9, which is a block diagram of paint display holding devices 600, the following describes the specific structure of the paint display holding device 600:
as shown in fig. 10 and 11, the painting display fixing device 600 includes a top driving structure 610, a top clamping member 620, a bottom driving structure 630, and a bottom clamping member 640, wherein the top driving structure 610 is connected to the top clamping member 620 in a driving manner, the bottom driving structure 630 is connected to the bottom clamping member 640 in a driving manner, the top driving structure 610 and the bottom driving structure 630 are respectively installed at two ends of the tiled panel structure 12 and the tiled panel structure , the top driving structure 610 drives the top clamping member 620 so that the top clamping member 620 abuts against or separates from the panel surface of the tiled panel structure 12, and the bottom driving structure 630 drives the bottom clamping member 640 so that the bottom clamping member 640 abuts against or separates from the panel surface of the tiled panel structure 12.
The top drive structure 610 includes: the mounting base 611, the supporting base 612, the driving part 613, the expansion link 614, the outer link 615, the inner link 616, and the pressing rod 617.
The bearing base station 612 is fixed on the installation base 611, the driving part 613 is rotatably arranged on the installation base 611, the driving part 613 drives the telescopic rod 614 to perform telescopic motion, the end of the outer connecting rod 615 is hinged to the bearing base station 612, the other end of the outer connecting rod 615 is hinged to the end of the telescopic rod 614, the pressing rod 617 is rotatably arranged on the installation base 611, the end of the inner connecting rod 616 is hinged to the pressing rod 617, the other end of the inner connecting rod 616 is hinged to the end of the telescopic rod 614, the pressing block 618 is arranged on the inner connecting rod 616, the pressing block 618 is abutted to or separated from the pressing rod 617, and the top clamping piece 620.
The operation of the drawing display fixture 600 is described below:
the painting to be fixed is scheduled to be located on the tiled panel structure 12;
the top of the painting is fixed through the cooperation of the top driving structure 610 and the top clamping piece 620, and the bottom of the painting is fixed through the cooperation of the bottom driving structure 630 and the bottom clamping piece 640;
specifically, the driving portion 613 is opened, so that the driving portion 613 drives the telescopic rod 614 to extend, the telescopic rod 614 further drives the inner connecting rod 616 to rotate, the inner connecting rod 616 abuts against the pressing rod 617 through the pressing block 618 on the inner connecting rod, the pressing rod 617 is further driven to rotate around the mounting base 611, the rotation of the pressing rod 617 further drives the top clamping member 620 to move towards the direction close to the plate surface of the spliced panel structure 12, and then the top of the painting is fixed;
similarly, the bottom of the painting is also fixed by the cooperation of the bottom driving structure 630 and the bottom clamping member 640;
therefore, the driving portion 613 drives the telescopic rod 614 to contract, the telescopic rod 614 further drives the inner connecting rod 616 to rotate reversely, the pressing block 618 on the inner connecting rod 616 is separated from the pressing rod 617, subsequently, the inner connecting rod 616 drives the pressing rod 617 to rotate reversely around the mounting base 611, the rotation of the pressing rod 617 further drives the top clamping member 620 to move in the direction away from the panel surface of the spliced panel structure 12, and then, the top of the painting is separated from the fixation of the top clamping member 620;
similarly, the bottom of the painting can also be released from the bottom clamp 640 by the bottom drive structure 630 cooperating with the bottom clamp 640.
It should be noted that, by providing the outer link 615, an end of the outer link 615 is hinged to the carrying base 612, and an end of the outer link 615 is hinged to an end of the telescopic rod 614, so that the driving portion 613 can drive the telescopic rod 614 to perform the telescopic motion more stably and smoothly.
In this embodiment, the drive portion is cylinder drive structure, and the top holder is rectangular block structure, and the bottom holder is rectangular block structure. In other embodiments, the driving portion is a motor screw driving structure, the top clamping member is a long strip-shaped plate structure, and the bottom clamping member is a long strip-shaped plate structure.
, the top driving structure 610 further comprises an adjusting bolt 619, the adjusting bolt 619 is screwed at the end of the pressing rod 617, and the top clamping piece 620 is installed on the pressing rod 617 through the adjusting bolt 619. therefore, the adjusting bolt 619 can be screwed clockwise or anticlockwise to adjust the extension length of the adjusting bolt 619, so that the purpose of adjusting the plate surface distance between the top clamping piece 620 and the splicing type panel structure 12 is achieved, the top driving structure can better adapt to paintings with different thicknesses, and an ideal fixing effect is achieved.
During the use of the multifunctional teaching aid 10 for classroom teaching, there are situations that teachers need to store stationery used in teaching, such as chalk, blackboard eraser, water pen, painting brush and the like used in teaching, therefore, how to design stationery storage boxes for storing stationery, especially during the switching use of the blackboard or the teacher desk, the rotation of the panel is accompanied, and during the rotation of the panel, how to proceed steps to prevent the stationery from falling from the storage boxes is a technical problem that technicians need to solve.
As shown in fig. 12, 13, and 14, a specific structure of the stationery storage case 700 will be described below:
A stationery storage box 700 comprises a cover 710, a box cover 720 and a rotary plate 730.
The outer cover 710 is a hollow shell structure, the outer cover 710 has an accommodating cavity 711, the outer cover 710 has a pick-and-place opening 712, the pick-and-place opening 712 is communicated with the accommodating cavity 711, the turntable 730 is rotatably accommodated in the accommodating cavity 711, the turntable 730 has an accommodating groove 731, and the box cover 720 is slidably disposed on the cavity wall of the accommodating cavity 711 to close the pick-and-place opening 712 or open the pick-and-place opening 712.
Specifically, the outer cover 710 is a cylindrical structure, the outer cover 710 has a top surface 713, a bottom surface 714 and a side surface 715, the access opening 712 is formed in the side surface 715 of the outer cover 710, the box cover 720 is provided with a push-pull handle 721, the push-pull handle 721 is abutted to or separated from the edge of the access opening 712, the turntable 730 is a disc, the accommodating cavity 711 is provided with a fixed shaft 716, the turntable 730 is provided with a rotating hole 732, the fixed shaft 716 is accommodated in the rotating hole 732, the number of the accommodating grooves 731 is multiple, and the accommodating grooves 732 are distributed in an annular array with the rotating shaft of the turntable 730 as the center.
Next, a method of using the stationery storage case 700 will be described:
firstly, the stationery storage box 700 is mounted on the board surface of the spliced panel structure 12;
the box cover 720 is slid by pushing and pulling the handle 721, so that the box cover 720 slides along the wall of the accommodating cavity 711, and the access opening 712 can be closed by the box cover 720, or the access opening 712 can be in an open state;
when the access opening 712 is opened, stationery items can be placed in the receiving groove 731 of the rotary plate 730;
, by rotating the turntable 730, the plurality of receiving slots 731 can sequentially reach the pick-and-place opening 712, so that the stationery items can be conveniently placed in the receiving slots 731, and the purpose of receiving a larger number of stationery items can be achieved;
when the access opening 712 is closed by the box cover 720, the blackboard or the lectern can be switched to use, and the stationery items stored therein will not fall down along with the rotation of the split joint type panel structure 12.
In step , a plurality of anti-slip ribs 733 are disposed on the edge of the turntable 730, and the plurality of anti-slip ribs 733 are distributed in an annular array around the rotation axis of the turntable 730.
In the use process of the multifunctional teaching aid 10 for classroom teaching, situations are encountered, when the spliced panel structure 12 is used as a blackboard, not only the adjustment of the rotation angle but also the adjustment of the height are required, and similarly, when the spliced panel structure 12 is used as a lectern, not only the adjustment of the rotation angle but also the adjustment of the height are required.
First, in the present embodiment, the th connector 13 and the second connector 14 have the same structure, and the th support rod 100 and the second support rod 200 have the same structure, and only the specific structure of the th connector 13 and the th support rod 100 will be described below.
As shown in fig. 15, the th supporting rod 100 is formed with a lifting/lowering adjusting groove 110, and the wall of the lifting/lowering adjusting groove 110 is formed with a lifting/lowering adjusting rack 111. correspondingly, the second supporting rod 200 is also formed with a lifting/lowering adjusting groove and a lifting/lowering adjusting rack having the same structure.
As shown in FIG. 15, the -th connector 13 comprises a lifting sleeve 610, a gear assembly 620, a locking pin assembly 630 and a rotary clamping plate 640.
The lifting sliding sleeve 610 is a hollow cylinder structure with two open ends, the lifting sliding sleeve 610 is slidably sleeved on the -th supporting rod 100, and the gear assembly 620 is installed on the lifting sliding sleeve 610.
As shown in fig. 17 and 18, the gear assembly 620 includes a gear mounting clip 621, a lifting adjusting gear 622, a rotation adjusting gear 623, a resistance type gear 624, and a transmission shaft 625, the gear mounting clip 621 is "n" shaped, the gear mounting clip 621 includes a th clip 626 and a second clip 627, a connection portion of the th clip 626 and the second clip 627 forms a closed end 20, a separation portion of the th clip 626 and the second clip 627 forms an open end 30, a housing cavity 628 is formed between the th clip 626 and the second clip 627, the rotation adjusting gear 623 and the resistance type gear 624 are engaged with each other and housed in the housing cavity 628, the rotation adjusting gear 623 is disposed near the closed end, the resistance type gear 624 is disposed near the open end, a tooth width of the resistance type gear 624 is larger than a tooth width of the rotation adjusting gear 623, the th clip 626 and the second clip 627 clamp the resistance type gear 624 and the lifting adjusting gear is disposed outside the housing cavity 628 and housed in the lifting adjusting groove 622, the lifting adjusting gear 622 is connected to the rotation adjusting gear 625, and the lifting adjusting gear 110 is engaged with the lifting adjusting gear 111.
The rotating clamp plate 640 is connected to the transmission shaft 625, and the splice type panel structure 12 is clamped to the rotating clamp plate 640 through the -th connecting end 15.
As shown in fig. 17 and 18, the lock pin assembly 630 includes a limit lock block 631, a limit guide block 632, and a limit bolt 633, the lift sliding sleeve 610 has a limit guide slot 611 (as shown in fig. 16), the limit guide block 632 is slidably disposed in the limit guide slot 611, the limit lock block 631 is fixed to the limit guide block 632, a return spring (not shown) is disposed between the limit lock block 631 and a slot wall of the limit guide slot 611, the limit lock block 631 receives or disengages from a tooth slot of the rotation adjusting gear 623, the lift sliding sleeve 610 has a slot 612 (as shown in fig. 16), an end of the limit bolt 633 has a wedge-shaped insert block 634, and the limit bolt 633 is inserted into the slot 612, such that the wedge-shaped insert block 634 abuts against the limit guide block 632, and the limit lock block 631 receives or disengages from the tooth slot of the rotation adjusting gear 623.
The operation of the th connector 13 is explained below:
the spliced panel structure 12 is clamped on the rotating clamping plate 640 through the th connecting end 15, the spliced panel structure 12 is rotated, and the spliced panel structure 12 further drives the transmission rotating shaft 625 to rotate through the rotating clamping plate 640;
the rotation of the transmission rotating shaft 625 drives the lifting adjusting gear 622 and the rotation adjusting gear 623 to rotate at the same time;
because the supporting rod 100 is provided with the lifting adjusting groove 110, the wall of the lifting adjusting groove 110 is provided with the lifting adjusting rack 111, and the lifting adjusting gear 622 is engaged with the lifting adjusting rack 111 in the lifting adjusting groove 110, during the rotation of the lifting adjusting gear 622, the lifting adjusting gear 622 can do lifting motion along the wall of the lifting adjusting groove 110, and the lifting motion of the lifting adjusting gear 622 also makes the spliced panel structure 12 do lifting motion, thereby realizing the height adjustment of the spliced panel structure 12;
it can be known that the adjustment of height needs to be realized to concatenation formula panel structure 12, needs carry out self rotation, and at concatenation formula panel structure 12 self pivoted in-process, also realizes the regulation of angle simultaneously, like this, has just also solved "concatenation formula panel structure 12 no matter uses as the blackboard or uses as the lectern, can both obtain angle and height's regulation this technical problem simultaneously.
It should be noted that, in a normal use state, the limit lock block 631 is under the action of the return spring, and the limit lock block 631 is accommodated in the tooth slot of the rotation adjusting gear 623, so that the limit lock block 631 can limit the rotation adjusting gear 623, and the rotation adjusting gear 623 is prevented from rotating under the action of an external force, thereby improving the use stability of the spliced panel structure 12.
However, when the angle or height of the assembled panel structure 12 needs to be adjusted, the rotation adjusting gear 623 needs to be rotated to obtain the angle or height adjustment, and at this time, the limit lock block 631 needs to be separated from the tooth slot of the rotation adjusting gear 623. for this purpose, a limit bolt 633 is specially designed, the limit bolt 633 is inserted into the slot 612, so that the wedge insert 634 is abutted to the end of the limit guide block 632 close to the rotation adjusting gear 623, and under the thrust action of the wedge insert 634, the limit lock block 631 can be separated from the tooth slot of the rotation adjusting gear 623, so that the rotation adjusting gear 623 is in a free rotation state, and the angle or height adjustment of the assembled panel structure 12 is facilitated.
It should be noted that, the use of the limit latch 633 can also further to make the limit lock block 631 more tightly received in the tooth slot of the rotation adjusting gear 623. for example, after the angle or height adjustment of the tiled panel structure 12 is completed, the limit latch 633 is rotated 180 degrees, so that the wedge-shaped insert block 634 is abutted to the end of the limit guide block 632 far away from the rotation adjusting gear 623, and thus, the wedge-shaped insert block 634 pushes the limit lock block 631 to the tooth slot of the rotation adjusting gear 623, so that the limit lock block 631 is more tightly received in the tooth slot of the rotation adjusting gear 623, thereby preventing the rotation adjusting gear 623 from rotating, and further makes the tiled panel structure 12 more stably fixed.
It should be noted that the gear mounting clip 621 is "n" shaped, the gear mounting clip 621 includes a th clip 626 and a second clip 627, a closed end 20 is formed at a connection portion of the th clip 626 and the second clip 627, an open end 30 is formed at a separation portion of the th clip 626 and the second clip 627, a receiving cavity 628 is formed between the th clip 626 and the second clip 627, the rotation adjusting gear 623 is engaged with the resistance gear 624 and received in the receiving cavity 628, the rotation adjusting gear 623 is disposed near the closed end, the resistance gear 624 is disposed near the open end, a tooth width of the resistance gear 624 is larger than a tooth width of the rotation adjusting gear 623, and the th clip 626 and the second clip 627 clamp the resistance gear 624, the resistance gear 624 is designed such that the resistance gear 624 can be tightly clamped by the th clip 626 and the second clip 627, the resistance gear 624 is not easily rotated, and the resistance gear 623 does not easily rotate when the panel locking structure 631 is rotated, the panel locking structure further provides a small force to the panel locking structure 631 and does not need to adjust the panel 12.
According to the multifunctional teaching aid 10 for classroom teaching, the supporting structure 11, the spliced panel structure 12, the connecting piece 13 and the second connecting piece 14 are arranged, and the structures of all the parts are optimally designed, so that the multifunctional teaching aid 10 for classroom teaching can be used as a blackboard or a teacher desk, and can be switched to be used according to actual teaching conditions.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (2)
- The multifunctional teaching aid for classroom teaching is characterized by comprising a caster structure, wherein the caster structure comprises a wheel carrier main body, a movable roller, a fixed cushion block, an adjusting bolt and an adjusting hand wheel, the wheel carrier main body is provided with a roller mounting cavity and a cushion block mounting cavity, the movable roller is rotatably mounted in the roller mounting cavity, the fixed cushion block is slidably mounted in the cushion block mounting cavity, the fixed cushion block is provided with a lifting sliding guide groove, the wall of the cushion block mounting cavity is provided with a lifting sliding guide block matched with the lifting sliding guide groove, the fixed cushion block is provided with a threaded hole, the end of the adjusting bolt is screwed in the threaded hole, the other end of the adjusting bolt is fixedly connected with the adjusting hand wheel, and the adjusting hand wheel drives the adjusting bolt to rotate and enables the fixed cushion block to slide along the wall of the mounting cavity through the matching of the lifting sliding guide groove and the lifting sliding guide block;the multifunctional teaching aid for classroom teaching also comprises a supporting structure, a splicing type panel structure, a th connecting piece and a second connecting piece;the supporting structure comprises an th supporting rod and a second supporting rod, wherein the th supporting rod and the second supporting rod are arranged at intervals;the th connecting piece is arranged on the th supporting rod in a sliding and fixed way, and the second supporting rod is arranged on the second supporting rod in a sliding and fixed way;the spliced panel structure is positioned between the th connecting piece and the second connecting piece, the two ends of the spliced panel structure form a th connecting end and a second connecting end, the spliced panel structure is rotatably and fixedly arranged on the th connecting piece through the th connecting end, and the spliced panel structure is rotatably and fixedly arranged on the second connecting piece through the second connecting end;the end of the th supporting rod is provided with the caster structure, and the end of the second supporting rod is provided with the caster structure;the th connecting piece and the second connecting piece are identical in structure, and the th supporting rod and the second supporting rod are identical in structure;a lifting adjusting groove is formed in the th supporting rod, and a lifting adjusting rack is formed in the wall of the lifting adjusting groove;the th connecting piece comprises a lifting sliding sleeve, a gear assembly, a locking pin assembly and a rotating clamping plate;the lifting sliding sleeve is of a hollow cylinder structure with openings at two ends, the lifting sliding sleeve is sleeved on the th supporting rod in a sliding manner, and the gear assembly is arranged on the lifting sliding sleeve;the gear assembly comprises a gear mounting clamp, a lifting adjusting gear, a rotation adjusting gear, a resistance type gear and a transmission rotating shaft, wherein the gear mounting clamp is in an n shape and comprises an th clamping piece and a second clamping piece, the joint of the th clamping piece and the second clamping piece forms a closed end, the separation part of the th clamping piece and the second clamping piece forms an open end, a containing cavity is formed between the th clamping piece and the second clamping piece, the rotation adjusting gear is meshed with the resistance type gear and contained in the containing cavity, the rotation adjusting gear is arranged close to the closed end, the resistance type gear is arranged close to the open end, the tooth width of the resistance type gear is larger than that of the rotation adjusting gear, the resistance type gear is clamped by the th clamping piece and the second clamping piece, the lifting adjusting gear is positioned outside the containing cavity and contained in a lifting adjusting groove, the lifting adjusting gear is connected with the rotation adjusting gear through the transmission rotating shaft, and the lifting adjusting gear is meshed with a lifting adjusting rack in the lifting adjusting groove;the rotating clamping plate is connected with the transmission rotating shaft, and the spliced panel structure is clamped on the rotating clamping plate through the th connecting end;the lock pin assembly comprises a limiting locking block, a limiting guide block and a limiting bolt, wherein a limiting guide groove is formed in the lifting sliding sleeve, the limiting guide block is arranged in the limiting guide groove in a sliding mode, the limiting locking block is fixed on the limiting guide block, a return spring is arranged between the limiting locking block and the groove wall of the limiting guide groove, the limiting locking block accommodates or separates from the tooth groove of the rotation adjusting gear, a slot is formed in the lifting sliding sleeve, a wedge-shaped insertion block is arranged at the end of the limiting bolt, and the limiting bolt is inserted into the slot to enable the wedge-shaped insertion block to be abutted against the limiting guide block so as to enable the limiting locking block to accommodate or separate from the tooth groove of the rotation adjusting gear.
- 2. The multi-functional teaching aid for classroom teaching as claimed in claim 1, wherein said end of said support bar mounts two of said caster structures and said end of said second support bar mounts two of said caster structures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810226009.2A CN108437701B (en) | 2018-03-19 | 2018-03-19 | Caster structure and multifunctional teaching tool for classroom teaching |
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| CN201810226009.2A CN108437701B (en) | 2018-03-19 | 2018-03-19 | Caster structure and multifunctional teaching tool for classroom teaching |
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| CN108437701A CN108437701A (en) | 2018-08-24 |
| CN108437701B true CN108437701B (en) | 2020-01-31 |
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| CN108437701A (en) | 2018-08-24 |
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