CN108669864B - Painting exhibition fixing device and multifunctional teaching aid for classroom teaching - Google Patents
Painting exhibition fixing device and multifunctional teaching aid for classroom teaching Download PDFInfo
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- CN108669864B CN108669864B CN201810226558.XA CN201810226558A CN108669864B CN 108669864 B CN108669864 B CN 108669864B CN 201810226558 A CN201810226558 A CN 201810226558A CN 108669864 B CN108669864 B CN 108669864B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/02—Devices for holding or supporting maps, drawings, or the like, including means for preventing rolling-up
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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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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a painting display fixing device and a multifunctional teaching aid for classroom teaching. The painting exhibition fixing device comprises a top driving structure, a top clamping piece, a bottom driving structure and a bottom clamping piece. The top driving structure is in driving connection with the top clamping piece, and the bottom driving structure is in driving connection with the bottom clamping piece; the top driving structure and the bottom driving structure are identical in structure, and the top clamping piece and the bottom clamping piece are identical in structure. According to the fixing device for painting display, the top driving structure, the top clamping piece, the bottom driving structure and the bottom clamping piece are arranged, the structures of all the parts are optimally designed, and the painting can be quickly and stably fixed on the panel.
Description
Technical Field
The invention relates to a painting display fixing device and a multifunctional teaching aid for classroom teaching.
Background
The blackboard is generally made of wood board or ground glass, and can be written on by using a specific writing material such as chalk, and is mostly black, blackish green, white or beige. Over two hundred years, the blackboard proves the one-step development of the world education industry from the earliest that black paint is coated on the surface of hard objects such as wood boards, cement and the like to the modern water-milled glass, color-coated steel plates and composite materials, and establishes the Chinese sumac labor for spreading knowledge, popularizing education and setting up the Chinese sumac labor for the human beings. At present, the types of blackboards also become complicated and diversified, and there are blackboards, green boards, white boards, and the like, which are classified by colors; the surface shape is divided into a plane plate, an arc panel and the like; the structure is divided into a movable support plate, a push-pull plate, a lifting plate, a magnetic blackboard and the like; the applications include teaching blackboards, office whiteboards, advertising boards, display boards and the like.
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, for a conventional blackboard, it usually has only simple functions of writing and displaying characters; for a traditional lectern, it usually has only a simple article placement function. Therefore, a multifunctional teaching tool for classroom teaching needs to be provided, the multifunctional teaching tool can be used as a blackboard and can also be used as a teacher desk, and the blackboard or the teacher desk can be switched to be used according to actual teaching conditions.
Furthermore, on the basis that the multifunctional teaching aid realizes the switching use of the blackboard or the teacher desk, the situation can be met, particularly for teachers teaching art, the teachers often need to show the paintings, and better teaching effects can be achieved through on-site explanation of the displayed paintings. However, the displayed painting usually includes a picture frame, and the painting with the picture frame is heavy and is not easy to fix on the panel. How to design a drawing show fixing device, realize with the quick, stable being fixed in on the panel of drawing, this is the technical problem that technical staff need solve.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a painting display fixing device and a multifunctional teaching tool for classroom teaching, and realizes the quick and stable fixing of painting on a panel.
The purpose of the invention is realized by the following technical scheme:
a painting display fixture, comprising: the device comprises a top driving structure, a top clamping piece, a bottom driving structure and a bottom clamping piece;
the top driving structure is in driving connection with the top clamping piece, and the bottom driving structure is in driving connection with the bottom clamping piece;
the top driving structure is the same as the bottom driving structure in structure, and the top clamping piece is the same as the bottom clamping piece in structure.
In one embodiment, the top drive structure comprises: the device comprises an installation base, a bearing base station, a driving part, a telescopic rod, an outer connecting rod, an inner connecting rod and a pressure rod;
the bearing base station is fixed on the mounting base;
the driving part is rotatably arranged on the mounting base and drives the telescopic rod to move in a telescopic manner;
one end of the outer connecting rod is hinged to the bearing base station, and the other end of the outer connecting rod is hinged to one end of the telescopic rod;
the pressure lever is rotatably arranged on the mounting base;
one end of the inner connecting rod is hinged to the pressure rod, and the other end of the inner connecting rod is hinged to one end of the telescopic rod;
a pressing block is arranged on the inner connecting rod and is abutted against or separated from the pressing rod;
the top clamping plate is arranged on the pressing rod.
In one embodiment, the driving part is a cylinder driving structure.
In one embodiment, the driving part is a motor screw driving structure.
In one embodiment, the top clamp is an elongated block structure.
In one embodiment, the top clamp is an elongated plate-like structure.
In one embodiment, the bottom clamp is an elongated block structure.
In one embodiment, the bottom clamp is an elongated plate-like structure.
The utility model provides a multi-functional teaching aid for classroom teaching, includes foretell drawing show fixing device, still includes: the device comprises a supporting structure, a first connecting piece and a second connecting piece;
the supporting structure comprises a first supporting rod and a second supporting rod, and the first supporting rod and the second supporting rod are arranged at intervals;
the first connecting piece is arranged on the first supporting rod in a sliding and fixed mode, and the second supporting rod is arranged on the second supporting rod in a sliding and fixed mode;
the spliced panel structure is positioned between the first connecting piece and the second connecting piece, a first connecting end and a second connecting end are formed at two ends of the spliced panel structure, the spliced panel structure can be fixedly arranged on the first connecting piece through the rotation of the first connecting end, and the spliced panel structure can be fixedly arranged on the second connecting piece through the rotation of the second connecting end;
the top drive structure with the bottom drive structure install respectively in the both ends of the same face of concatenation formula panel structure, the top drive structure drive the top holder, so that the top holder with the face butt of concatenation formula panel structure or separation, the bottom drive structure drive the bottom holder, so that the bottom holder with the face butt of concatenation formula panel structure or separation.
According to the fixing device for painting display, the top driving structure, the top clamping piece, the bottom driving structure and the bottom clamping piece are arranged, the structures of all the parts are optimally designed, and the painting can be quickly and stably fixed on the panel.
Drawings
Fig. 1 is a structural view of a multifunctional teaching aid for classroom teaching according to 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 (one) of the caster wheel 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 a paint display fixture 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 structural view of a stationery storage box;
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 first block diagram of the first connecting member shown in FIG. 1 engaged with the first support bar;
FIG. 16 is a second view of the first connecting member shown in FIG. 9 engaged with the first support bar;
FIG. 17 is a fragmentary view (one) of the first connector shown in FIG. 9;
fig. 18 is a partial view (two) of the first 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 will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. 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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a multi-functional teaching aid 10 for classroom teaching includes: support structure 11, tiled panel structure 12, first connector 13, second connector 14.
The supporting structure 11 includes a first supporting rod 100 and a second supporting rod 200, and the first supporting rod 100 and the second supporting rod 200 are disposed at an interval.
The first connecting member 13 is slidably and fixedly disposed on the first supporting rod 100, and the second supporting rod 14 is slidably and fixedly disposed on the second supporting rod 200.
The splicing type panel structure 12 is located between the first connecting piece 13 and the second connecting piece 14, a first connecting end 15 and a second connecting end 16 are formed at two ends of the splicing type panel structure 12, the splicing type panel structure 12 can be fixedly arranged on the first connecting piece 13 through rotation of the first connecting end 15, and the splicing type panel structure 12 can be fixedly arranged on the second connecting piece 14 through rotation of 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 necessarily parallel to the horizontal plane, and 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 can be adjusted by the teaching staff 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 does not have to be 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, as long as writing and displaying can be realized, and the angle can be adjusted by the teaching staff according to the actual situation.
In the use of the multifunctional teaching aid 10 for classroom teaching, a situation is encountered in which the adjustment of the board surface area is required according to the actual use environment regardless of whether the joined panel structure 12 is used as a blackboard or a lectern. For example, when the tiled panel structure 12 is used as a blackboard, if a little more characters are written on the board, the area of the board needs to be enlarged; if the board with an overlarge area cannot be placed due to the limitation of a field, the area of the board needs to be reduced. For another example, when the spliced panel structure 12 is used as a lectern, if a plurality of objects are to be placed on the board surface, the area of the board surface needs to be enlarged; similarly, if the board cannot be placed in an excessively large area due to a limitation of a place, it is necessary to reduce the area of the board. Therefore, how to design a splicing type panel structure 12 can adjust the size of the panel surface area according to the actual use condition, which is a technical problem to be solved by technical personnel.
As shown in fig. 2, 3 and 4, a specific structure of the tiled panel structure 12 will be described below:
a tiled panel structure 12 includes a plurality of tiles 300 tiled in sequence. In this embodiment, the number of the splice plates 300 is three.
Each of the panels 300 has two opposite surfaces 310 (as shown in fig. 4), each of the panels 300 has a through connecting hole 320, the connecting hole 320 is located between the two opposite surfaces 310, and a central axis of the connecting hole 320 is parallel to the surfaces 310. That is, the connection through hole 320 penetrates through the splice plate 300, and the connection through hole 320 penetrates through the splice plate 300 from one end of the splice plate 300 to the other 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 one of the splice plates 300, and one of the splice plates 300 is clamped with the clamping groove 323 of the other splice plate 300 through the buckle 400, so that two adjacent splice plates 300 are connected.
Thus, by forming the connecting through hole 320, when two splice plates 300 need to be connected, one splice plate 300 is clamped with the clamping groove 323 of the other splice plate 300 through the buckle 400; when the two splicing plates 300 need to be separated, the buckle 400 can be disengaged from the clamping groove 323 by pressing the buckle 400. Therefore, the two splicing plates 300 are quickly assembled and disassembled in a matching mode of the buckle and the clamping groove. The teaching personnel carry out the combination concatenation of arbitrary quantity with splice plate 300 according to actual conditions, have improved the effect of using.
Further, the number of the connecting through holes 320 is plural, 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. By forming the plurality of connecting through holes 320 and correspondingly matching the plurality of buckles 400, the connecting strength of two adjacent splice plates 300 is greatly improved.
As shown in fig. 5, further, the clip 400 includes an insertion column 410 and a clip head 420 disposed at one end of the insertion column 410, the clip head 420 includes two elastic clips 421, an elastic recovery space 422 is formed between the two elastic clips 421, the clip 323 penetrates through the plate 310 and is communicated with the through hole 320, and the elastic clips 421 are accommodated in the clip 323. Therefore, after the two elastic clamping blocks 421 are elastically deformed, the two elastic clamping blocks will enter the connecting through hole 320, and when the elastic clamping blocks 421 reach the clamping grooves 323, the elastic clamping blocks will be elastically deformed again, so that the elastic clamping blocks 421 are accommodated in the clamping grooves 323, thereby realizing clamping, and further realizing the connection of the two splice plates 300. It should be further noted that the engaging groove 323 penetrates the plate surface 310 and penetrates the connecting through hole 320, so that when the two splice plates 300 need to be separated, the elastic latching block 421 can be extruded from an end of the engaging groove 323, so that the elastic latching block 421 can be quickly separated from the engaging groove 323.
As shown in fig. 5, further, the elastic latch 421 has an inclined guide surface 423. By providing the inclined guide surface 423, the elastic latch 421 can enter the through hole 320 more smoothly and quickly, and the snap connection is achieved.
As shown in fig. 5, in the present embodiment, a plurality of locking slots 323 are sequentially spaced at the locking end 322 along the extending direction of the connecting through hole 320. Like this, through having seted up a plurality of draw-in grooves 323, can select buckle 400 to enter into the degree of depth of connect the through hole 320 according to actual conditions to realize the regulation of distance between two splice plates 300, thereby realize the regulation to splice plate 300's after the concatenation area size, further improved the effect of using.
In the use of the multifunctional teaching aid 10 for classroom teaching, a situation is encountered in which the spliced panel structure 12 needs to be moved whether to be used as a blackboard or a lectern, and can reach a suitable position by moving the spliced panel structure, so that a teacher can obtain a better teaching effect in a classroom. The tiled panel structure 12, once moved into position, also needs to be secured to prevent it from moving around. Therefore, how to design a caster structure can easily move the splicing type panel structure 12 on the one hand, and can fix the position of the splicing type panel structure 12 on the other hand, which is a technical problem that technical personnel need to solve.
As shown in fig. 6, 7, and 8, a specific structure of the caster structure 500 will be described below:
a caster wheel structure 500 comprising: the wheel frame comprises a wheel frame main body 510, a movable roller 520, a fixed cushion block 530, an adjusting bolt 540 and an adjusting hand wheel 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.
A threaded hole (not shown) is formed in the fixing cushion block 530, one 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 caster structure 500 is installed at one end of the first support bar 100, and the caster structure 500 is installed at one end of the second support bar 200. In this embodiment, two caster structures 500 are installed at one end of the first support bar 100 and two caster structures 500 are installed at one end of the second support bar 200, so that the balance of the entire 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, further, the caster structure 500 further includes a supporting plate 560, and the supporting plate 560 is rotatably disposed on the wheel carriage body 510. In this embodiment, the supporting plate 560 is rotatably provided on the wheel carrier body 510 by a bearing. In this way, the wheel frame body 510 is mounted on the first support bar 100 and the second support bar 200 through the support plate 560, so that the multifunctional teaching aid 10 for classroom teaching can be better changed in direction during the overall movement.
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, further, the adjustment handwheel 550 includes: the sleeve 551, the plurality of cleats 552 are twisted. The screwing sleeve 551 is sleeved on the adjusting bolt 540, the anti-slip blocks 552 are distributed in an annular array by taking the central axis of the screwing sleeve 551 as the center, and the two adjacent anti-slip blocks 552 are mutually spaced to form an anti-slip groove 553. Like this, through setting up a plurality of non slipping spur 552, a plurality of non slipping spur 552 use the center pin of twisting sleeve 551 to be the annular array and distribute as the center, separate each other and form anti-skidding recess 553 between two adjacent non slipping spur 552, can be light twist and twist sleeve 551, and then drive adjusting bolt 540 and rotate, realize the elevating movement of fixed cushion block 530.
Such a situation is encountered in the use of the multifunctional teaching aid 10 for classroom teaching, and particularly for teachers teaching arts, they often need to show paintings, and a better teaching effect can be achieved by on-site teaching of the shown paintings. However, the displayed painting usually includes a picture frame, and the painting with the picture frame is heavy and is not easy to fix on the tiled panel structure 12. How to design a painting show fixing device, realize being fixed in on concatenation formula panel structure 12 that the painting is quick, stable, this is the technical problem that technical staff needs to solve.
As shown in fig. 9, which is a block diagram of a paint display fixture 600. The specific structure of the drawing display fixture 600 is described below:
as shown in fig. 10 and 11, the painting display fixing device 600 includes: top drive structure 610, top clamp 620, bottom drive structure 630, bottom clamp 640. Top drive structure 610 is in driving connection with top clamp 620; the bottom drive structure 630 is drivingly connected to the bottom clamp 640. The top driving structure 610 and the bottom driving structure 630 are respectively installed at two ends of the same board surface of the splicing type panel structure 12, the top driving structure 610 drives the top clamping member 620, so that the top clamping member 620 is abutted against or separated from the board surface of the splicing type panel structure 12, and the bottom driving structure 630 drives the bottom clamping member 640, so that the bottom clamping member 640 is abutted against or separated from the board surface of the splicing type panel structure 12. In this embodiment, the top drive structure 610 is identical in structure to the bottom drive structure 630, and the top clamp 620 is identical in structure to the bottom clamp 640.
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 612 is fixed on the installation base 611; the driving part 613 is rotatably arranged on the mounting base 611, and the driving part 613 drives the telescopic rod 614 to perform telescopic motion; one end of the outer connecting rod 615 is hinged on the bearing base 612, and the other end of the outer connecting rod 615 is hinged on one end of the telescopic rod 614; the pressure lever 617 is rotatably arranged on the mounting base 611; one end of the inner connecting rod 616 is hinged on the pressing rod 617, and the other end of the inner connecting rod 616 is hinged on one end of the telescopic rod 614; a pressing block 618 is arranged on the inner connecting rod 616, and the pressing block 618 is abutted to or separated from the pressing rod 617; the top clamp 620 is mounted to the strut 617.
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 connecting rod 615, one end of the outer connecting rod 615 is hinged to the bearing base 612, and the other end of the outer connecting rod 615 is hinged to one end of the telescopic rod 614, so that the driving portion 613 can drive the telescopic rod 614 to perform telescopic movement 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.
Further, the top driving structure 610 further includes an adjusting bolt 619, the adjusting bolt 619 is screwed to one end of the pressing rod 617, and the top clamping member 620 is mounted on the pressing rod 617 through the adjusting bolt 619. Like this, can twist to adjusting bolt 619 through clockwise or reverse time and move, adjust adjusting bolt 619's the length that stretches out, and then reach the purpose of adjusting top holder 620 and the face distance of concatenation formula panel structure 12 to can better adapt to the drawing of different thickness, reach the fixed effect of ideal.
In the use process of the multifunctional teaching aid 10 for classroom teaching, such a situation is encountered that a teacher needs to store stationery used in the teaching process, for example, chalk, a blackboard eraser, a water-based pen, a painting brush and the like used in the teaching process. Therefore, how to design a stationery storage box for storing stationery, particularly, how to prevent stationery from falling off from the stationery storage box in the process of switching the blackboard or the teacher's desk for use along with the rotation of the panel, which is a technical problem to be solved by technical personnel.
As shown in fig. 12, 13, and 14, a specific structure of the stationery storage case 700 will be described below:
a stationery storage case 700 comprising: a cover 710, a box cover 720 and a turntable 730.
The housing 710 has a hollow housing structure, the housing 710 has a receiving cavity 711, the housing 710 has a pick-and-place opening 712, and the pick-and-place opening 712 is communicated with the receiving cavity 711. The rotary plate 730 is rotatably accommodated in the accommodating cavity 711, and an accommodating groove 731 is formed in the rotary plate 730. The cover 720 is slidably disposed on the wall of the receiving cavity 711 to close the access opening 712 or open the access 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 pick-and-place opening 712 is in an open state, some stationery items can be placed in the receiving groove 731 of the rotary plate 730;
furthermore, by rotating the rotating disc 730, the plurality of accommodating grooves 731 can sequentially reach the pick-and-place opening 712, so that stationery can be conveniently placed in the accommodating grooves 731, and the purpose of accommodating a larger number of stationery is 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.
Further, the edge of the turntable 730 is provided with a plurality of anti-slip protruding strips 733, and the plurality of anti-slip protruding strips 733 are distributed in an annular array with the rotation axis of the turntable 730 as the center. Like this, through setting up many anti-skidding sand grips 733, can reach better anti-skidding effect, improve the frictional force of staff and carousel 730 edge contact.
In the use of the multi-functional teaching aid 10 for classroom teaching, there is a case where not only the adjustment of the rotation angle but also the adjustment in height should be obtained when the tiled panel structure 12 is used as a blackboard; likewise, when the tiled panel structure 12 is used as a lectern, not only the adjustment of the angle of rotation, but also the adjustment in height should be obtained. It can be known that no matter the spliced panel structure 12 is used as a blackboard or a lectern, the teacher needs to be able to obtain the adjustment of angle and height simultaneously according to actual conditions, thereby obtaining a better teaching effect. Therefore, how to design the structure of the first connecting piece 13 and the second connecting piece 14 to be further improved makes the spliced panel structure 12 capable of simultaneously achieving angle and height adjustment no matter being used as a blackboard or a teacher desk, which is a technical problem to be solved by the technical personnel.
First, in the present embodiment, the first connecting member 13 and the second connecting member 14 have the same structure, and the first support bar 100 and the second support bar 200 have the same structure, and only the specific structure of the first connecting member 13 and the first support bar 100 will be described below.
As shown in fig. 15, the first support bar 100 is provided with an elevation adjustment groove 110, and a wall of the elevation adjustment groove 110 is provided with an elevation adjustment rack 111. Correspondingly, the second support rod 200 is also provided with a lifting adjusting groove and a lifting adjusting rack with the same structure.
As shown in fig. 15, the first connecting member 13 includes: a lifting sliding sleeve 610, a gear assembly 620, a locking pin assembly 630 and a rotating clamping plate 640.
The lifting sliding sleeve 610 is a hollow cylinder structure with openings at two ends, the lifting sliding sleeve 610 is slidably sleeved on the first 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: gear mounting clamp 621, lifting adjusting gear 622, rotation adjusting gear 623, resistance type gear 624 and transmission rotating shaft 625. The gear mounting clip 621 is shaped like an "n", the gear mounting clip 621 includes a first clamping piece 626 and a second clamping piece 627, a closed end 20 is formed at a connection portion of the first clamping piece 626 and the second clamping piece 627, an open end 30 is formed at a separation portion of the first clamping piece 626 and the second clamping piece 627, and a receiving cavity 628 is formed between the first clamping piece 626 and the second clamping piece 627. The rotation adjusting gear 623 is meshed with the resistance type gear 624 and is contained in the containing cavity 628, the rotation adjusting gear 623 is arranged close to the closed end, the resistance type gear 624 is arranged close to the open end, the tooth width of the resistance type gear 624 is larger than that of the rotation adjusting gear 623, and the resistance type gear 624 is clamped by the first clamping piece 626 and the second clamping piece 627. The lifting adjusting gear 622 is positioned outside the accommodating cavity 628 and is accommodated in the lifting adjusting groove 110, the lifting adjusting gear 622 is connected with the rotating adjusting gear 623 through a transmission rotating shaft 625, and the lifting adjusting gear 622 is meshed with the lifting adjusting rack 111 in the lifting adjusting groove 110.
The rotating clamping plate 640 is connected to the transmission shaft 625, and the splicing type panel structure 12 is clamped on the rotating clamping plate 640 through the first connection end 15.
As shown in fig. 17 and 18, the locking pin assembly 630 includes: spacing locking piece 631, spacing guide block 632, spacing bolt 633. The lifting sliding sleeve 610 is provided with a limit guide groove 611 (as shown in fig. 16), the limit guide block 632 is slidably disposed in the limit guide groove 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 groove wall of the limit guide groove 611, and the limit lock block 631 receives or disengages from a tooth groove of the rotation adjusting gear 623. The lifting sliding sleeve 610 is provided with a slot 612 (as shown in fig. 16), one end of the limit pin 633 is provided with a wedge-shaped insert block 634, and the limit pin 633 is inserted into the slot 612, so that the wedge-shaped insert block 634 abuts against the limit guide block 632, and further the limit lock block 631 receives or disengages from the tooth slot of the rotation adjusting gear 623.
The working principle of the first connecting member 13 is explained below:
the splicing type panel structure 12 is clamped on the rotating clamping plate 640 through the first connecting end 15, the splicing type panel structure 12 is rotated, and the splicing type 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 first supporting rod 100 is provided with the lifting adjusting groove 110, the groove 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 process of the lifting adjusting gear 622, the lifting adjusting gear 622 can do lifting motion along the groove 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 regulation of height will be realized to concatenation formula panel structure 12, need carry out the rotation of self, and at concatenation formula panel structure 12 self pivoted in-process, also realize 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 the regulation of angle and height" 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 angular or height adjustment of the tiled panel structure 12 is required, rotation of the rotation adjustment gear 623 is required. At this time, the limit lock 631 is disengaged from the tooth groove of the rotation adjusting gear 623. For this purpose, a limit stop 633 is specially designed. The limit pin 633 is inserted into the slot 612, so that the wedge block 634 and one end of the limit guide block 632 close to the rotation adjusting gear 623 are abutted, and under the thrust action of the wedge block 634, the limit lock block 631 can be disengaged 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 spliced panel structure 12 is facilitated.
It should be noted that, the use of the limit latch 633 can further promote the limit lock block 631 to be more tightly accommodated in the tooth slot of the rotation adjusting gear 623. For example, after the angle or height of the tiled panel structure 12 is adjusted, the limit pin 633 is rotated 180 degrees, so that the wedge block 634 and the limit guide block 632 abut against one end of the rotation adjusting gear 623 far away from the one end of the rotation adjusting gear 623, and thus the wedge 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 accommodated in the tooth slot of the rotation adjusting gear 623, the rotation adjusting gear 623 is prevented from rotating, and further the tiled panel structure 12 can be more stably fixed.
It should be further noted that the gear mounting clip 621 is shaped like an "n", the gear mounting clip 621 includes a first clamping piece 626 and a second clamping piece 627, a closed end 20 is formed at a connection portion of the first clamping piece 626 and the second clamping piece 627, an open end 30 is formed at a separation portion of the first clamping piece 626 and the second clamping piece 627, and a receiving cavity 628 is formed between the first clamping piece 626 and the second clamping piece 627. The rotation adjusting gear 623 is meshed with the resistance type gear 624 and is contained in the containing cavity 628, the rotation adjusting gear 623 is arranged close to the closed end, the resistance type gear 624 is arranged close to the open end, the tooth width of the resistance type gear 624 is larger than that of the rotation adjusting gear 623, and the resistance type gear 624 is clamped by the first clamping piece 626 and the second clamping piece 627. Due to the structural design, the resistance type gear 624 can be tightly clamped by the first clamping piece 626 and the second clamping piece 627 and is not easy to rotate, the resistance type gear 624 which is not easy to rotate also provides resistance for the rotation adjusting gear 623 meshed with the resistance type gear, the rotation adjusting gear 623 is not easy to rotate, and the splicing type panel structure 12 can also be subjected to the resistance effect in the rotating process. Therefore, when the splicing type panel structure 12 needs to be adjusted, the limiting lock block 631 cannot rotate at will due to an excessively small external force at the moment of disengaging from the tooth grooves of the rotation adjusting gear 623, and cannot rotate at will due to the gravity of the splicing type panel structure 12 itself, and a certain acting force needs to be provided to the splicing type panel structure 12, so that the splicing type panel structure 12 can rotate, and the stability of the splicing type panel structure 12 in the adjusting process is improved.
According to the multifunctional teaching tool 10 for classroom teaching, the supporting structure 11, the spliced panel structure 12, the first connecting piece 13 and the second connecting piece 14 are arranged, and the structures of the components are optimally designed, so that the multifunctional teaching tool 10 for classroom teaching can be used as a blackboard and can also be used as a teacher desk, and the blackboard or the teacher desk 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 (1)
1. The utility model provides a multi-functional teaching aid for classroom teaching, its characterized in that, shows fixing device including the drawing, drawing show fixing device includes: a top drive structure, a top clamp, a bottom drive structure, and a bottom clamp; the top driving structure is in driving connection with the top clamping piece, and the bottom driving structure is in driving connection with the bottom clamping piece; the top driving structure and the bottom driving structure are identical in structure, and the top clamping piece and the bottom clamping piece are identical in structure;
the multifunctional teaching aid for classroom teaching further comprises: the panel structure comprises a supporting structure, a spliced panel structure, a first connecting piece and a second connecting piece;
the supporting structure comprises a first supporting rod and a second supporting rod, and the first supporting rod and the second supporting rod are arranged at intervals;
the first connecting piece is arranged on the first supporting rod in a sliding and fixed mode, and the second supporting rod is arranged on the second supporting rod in a sliding and fixed mode;
the spliced panel structure is positioned between the first connecting piece and the second connecting piece, a first connecting end and a second connecting end are formed at two ends of the spliced panel structure, the spliced panel structure can be fixedly arranged on the first connecting piece through the rotation of the first connecting end, and the spliced panel structure can be fixedly arranged on the second connecting piece through the rotation of the second connecting end;
the top driving structure and the bottom driving structure are respectively arranged at two ends of the same plate surface of the spliced panel structure, the top driving structure drives the top clamping piece so as to enable the top clamping piece to be abutted to or separated from the plate surface of the spliced panel structure, and the bottom driving structure drives the bottom clamping piece so as to enable the bottom clamping piece to be abutted to or separated from the plate surface of the spliced panel structure;
the first connecting piece and the second connecting piece are identical in structure, and the first supporting rod and the second supporting rod are identical in structure;
the first supporting rod is provided with a lifting adjusting groove, and the wall of the lifting adjusting groove is provided with a lifting adjusting rack;
the first connecting member includes: the lifting sliding sleeve, the gear assembly, the lock pin assembly and the rotating clamping plate are arranged on the lifting sliding sleeve;
the lifting sliding sleeve is of a hollow cylinder structure with openings at two ends, the lifting sliding sleeve is sleeved on the first supporting rod in a sliding mode, and the gear assembly is installed on the lifting sliding sleeve;
the gear assembly includes: the gear mounting clamp, the lifting adjusting gear, the rotation adjusting gear, the resistance type gear and the transmission rotating shaft are arranged on the rack; the gear mounting clamp is n-shaped and comprises a first clamping piece and a second clamping piece, a closed end is formed at the joint of the first clamping piece and the second clamping piece, an open end is formed at the separation part of the first clamping piece and the second clamping piece, and an accommodating cavity is formed between the first clamping piece and the second clamping piece; the rotation adjusting gear and the resistance type gear are meshed with each other 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, and the first clamping piece and the second clamping piece clamp the resistance type gear; the lifting adjusting gear is positioned outside the accommodating cavity and is accommodated in the lifting adjusting groove, the lifting adjusting gear is connected with the rotating adjusting gear through the transmission rotating shaft, and the lifting adjusting gear is meshed with the 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 first connecting end;
the latch assembly includes: the limiting lock block, the limiting guide block and the limiting bolt; the lifting sliding sleeve is provided with a limiting guide groove, the limiting guide block is arranged in the limiting guide groove in a sliding manner, the limiting lock block is fixed on the limiting guide block, a reset spring is arranged between the limiting lock block and the groove wall of the limiting guide groove, and the limiting lock block accommodates or separates from the tooth groove of the rotation adjusting gear; the lifting sliding sleeve is provided with a slot, one end of the limiting bolt is provided with a wedge-shaped insert block, and the limiting bolt is inserted into the slot so that the wedge-shaped insert block is abutted to the limiting guide block and the limiting lock block is accommodated in or separated from the tooth groove of the rotation adjusting gear.
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| CN201810226558.XA CN108669864B (en) | 2018-03-19 | 2018-03-19 | Painting exhibition fixing device and multifunctional teaching aid for classroom teaching |
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| CN201810226558.XA CN108669864B (en) | 2018-03-19 | 2018-03-19 | Painting exhibition fixing device and multifunctional teaching aid for classroom teaching |
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| CN108669864B true CN108669864B (en) | 2019-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109431177B (en) * | 2018-11-19 | 2021-01-08 | 厉鼎 | Decorative wall frame with fine-tuning structure |
| CN110025149B (en) * | 2019-04-22 | 2020-12-11 | 南京高等职业技术学校（江苏联合职业技术学院南京分院） | Civil engineering is with fixed support body structure that can fix construction drawing |
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| CN204483545U (en) * | 2015-03-27 | 2015-07-22 | 李姝妍 | Blackboard Hanging chart stand |
| CN204586324U (en) * | 2015-05-04 | 2015-08-26 | 青岛农业大学 | Outdoor sketching easel |
| CN205601458U (en) * | 2016-03-23 | 2016-09-28 | 常州信息职业技术学院 | Can tight teaching board of electronic clamp |
| CN107536308A (en) * | 2017-10-31 | 2018-01-05 | 安徽金钗石斛有限公司 | A kind of language teaching poem hanger |
| CN207106009U (en) * | 2017-04-17 | 2018-03-16 | 连捷 | A kind of teaching of senior high school fine arts palette rack |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2468356Y (en) * | 2001-02-23 | 2002-01-02 | 明镒兴业股份有限公司 | Stepless lifting/lowering adjusting structure for top of electric table |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204483545U (en) * | 2015-03-27 | 2015-07-22 | 李姝妍 | Blackboard Hanging chart stand |
| CN204586324U (en) * | 2015-05-04 | 2015-08-26 | 青岛农业大学 | Outdoor sketching easel |
| CN205601458U (en) * | 2016-03-23 | 2016-09-28 | 常州信息职业技术学院 | Can tight teaching board of electronic clamp |
| CN207106009U (en) * | 2017-04-17 | 2018-03-16 | 连捷 | A kind of teaching of senior high school fine arts palette rack |
| CN107536308A (en) * | 2017-10-31 | 2018-01-05 | 安徽金钗石斛有限公司 | A kind of language teaching poem hanger |
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