CN210836676U

CN210836676U - Demonstration board for teaching

Info

Publication number: CN210836676U
Application number: CN201920556686.0U
Authority: CN
Inventors: 陈艳春; 其他发明人请求不公开姓名
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-06-23
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a demonstration board is used in teaching, including base, first dead lever and second dead lever, the groove has been accomodate to the inside having seted up in front of base, it has the cabinet of accomodating to accomodate inslot wall top fixed mounting, the top intermediate position department of base has the bull stick through first pivot movable mounting, the inner wall of bull stick is provided with the extension pole, the fixed orifices has been seted up in the front of extension pole, in the front that first dead lever runs through the bull stick extends to the fixed orifices, the top movable mounting of extension pole has the fourth pivot, the second dead lever runs through the top of extension pole, the top of fourth pivot has the show board through set-square fixed mounting. The utility model discloses be provided with show board and fixed plate, can make some bulky polygonal models fix, can rotate the show board, be provided with fixing device, can show some personage models's action and contrast, make the personage produce dynamic effect, make its teaching quality improve.

Description

Demonstration board for teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a demonstration board is used in teaching.

Background

Along with the continuous development of society, the continuous progress of teaching, current teaching demonstration board is many, most all are the demonstration to the cultural course, but the sports is also a very important subject, chinese nation nationality is advanced fully and develops, the moral intelligence is lao, but current teaching device does not have the teaching demonstration board of sports, all teaching all are that mr carries out actual demonstration on the playground, if meet special weather condition, can't go out, so the sports just can't carry out sports action and scene actual teaching in the room, lead to the teaching quality to reduce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a demonstration board is used in teaching to when solving the sports class that proposes in the above-mentioned background art, can't carry out sports action and scene actual teaching in the room, the teaching quality who leads to reduces the scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: a demonstration board for teaching comprises a base, a first fixing rod and a second fixing rod, wherein a containing groove is formed in the front of the base, a containing cabinet is fixedly installed at the top of the inner wall of the containing groove, a rotating rod is movably installed at the middle position of the top of the base through a first rotating shaft, an extending rod is arranged on the inner wall of the rotating rod, a fixing hole is formed in the front of the extending rod, the first fixing rod penetrates through the front of the rotating rod and extends into the fixing hole, a fourth rotating shaft is movably installed at the top end of the extending rod, the second fixing rod penetrates through the top of the extending rod, a demonstration board is fixedly installed at the top of the fourth rotating shaft through a triangular plate, a circular groove is formed in the front of the demonstration board, a fixing device is movably installed at the bottom of the inner wall of the circular groove, a second sliding groove is formed in the surface of the demonstration board, a first gear is movably installed at the middle position of, the first gear is meshed with the second gear, a screw rod is fixedly mounted on the left wall of the second gear, a first sliding block is sleeved on the outer wall of the screw rod, and a fixing plate is fixedly mounted on the front face of the first sliding block.

Preferably, the fixing device comprises a fixing seat, a first sliding groove, a spring, a clamping plate and a second rotating shaft, the first sliding groove is formed in the fixing seat, the spring is fixedly mounted on two sides of the inner wall of the first sliding groove, the clamping plate is fixedly mounted at the left end of the spring, and the second rotating shaft is movably mounted at the middle position of the bottom of the fixing seat.

Preferably, splint embedded in first spout, and splint and spring constitution elastic construction, the bottom surface and the circular slot inner wall ground movable mounting of second pivot, fixing device constitutes the rotary type structure with the circular slot.

Preferably, the circular grooves and the fixing devices are provided with six groups, and the six groups of the circular grooves and the fixing devices are vertically symmetrical relative to the first gear.

Preferably, the second gear is provided with four groups, four groups the second gear evenly surrounds around first gear, and first gear and second gear constitute the rotary type structure, the inner wall of first slider is provided with the screw thread, and first slider and lead screw constitution rotary type sliding construction.

Preferably, six groups of holes are formed in the periphery of the outer wall of the fourth rotating shaft, threads are arranged at two ends of the second fixing rod, holes are formed in the left side of the inner wall of the top of the extension rod, inner threads are formed in the inner wall of each hole, and the second fixing rod penetrates through the holes in the outer wall of the fourth rotating shaft and extends into the holes in the left side of the extension rod.

Compared with the prior art, the beneficial effects of the utility model are that: the device is provided with show board and fixed plate, can make some bulky polygonal models fix, can rotate the show board, is provided with fixing device, can show some personage models's action and contrast, makes the personage produce dynamic effect, makes its teaching quality improve.

1 is provided with the fixed plate, and the pulling fixed plate makes the fixed plate take place to remove, drives the lead screw and rotates to drive first gear and rotate, lead to four group's fixed plates to remove simultaneously, fix with large mould, thereby can make mr also can simulate out outdoor scene at indoor and teach, improved the quality of teaching.

2, be provided with fixing device, the effect that the pulling splint passed through the spring can make the personage motion mould fix, and six fixing device of organizing can make the action of personage mould have a transition, produce dynamic effect, can let the mr also can carry out the sports action teaching indoor, have improved the quality of teaching.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is a schematic view of a connection structure of the fixing plate, the first gear, the lead screw, the second gear and the first slider according to the present invention;

fig. 4 is a schematic view of the connection structure of the display board, the fourth rotating shaft and the second fixing rod of the present invention;

fig. 5 is a schematic view of the front cross-sectional structure of the fixing device of the present invention.

In the figure: 1. a base; 2. a receiving groove; 3. a storage cabinet; 4. a first rotating shaft; 5. a rotating rod; 6. a first fixing lever; 7. a display board; 8. a circular groove; 9. a fixing device; 91. a fixed seat; 92. a first chute; 93. a spring; 94. a splint; 95. a second rotating shaft; 10. a second chute; 11. a fixing plate; 12. a screw rod; 13. a first gear; 14. a first slider; 15. a second gear; 16. a third rotating shaft; 17. a second fixing bar; 18. a fixing hole; 19. a fourth rotating shaft; 20. a set square; 21. and (5) extending the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a demonstration board for teaching comprises a base 1, a first fixing rod 6 and a second fixing rod 17, wherein a containing groove 2 is formed in the front of the base 1, a containing cabinet 3 is fixedly installed at the top end of the inner wall of the containing groove 2, the containing cabinet 3 divides the containing groove 2 into two parts, a plurality of large-scale molds can be placed in the containing groove 2 below, a plurality of small-scale teaching tools can be placed in the containing cabinet 3, a rotating rod 5 is movably installed at the middle position of the top of the base 1 through a first rotating shaft 4, an extending rod 21 is arranged on the inner wall of the rotating rod 5, a fixing hole 18 is formed in the front of the extending rod 21, the first fixing rod 6 penetrates through the front of the rotating rod 5 and extends into the fixing hole 18, a thread is arranged on the outer wall of the first fixing rod 6, the thread and a hole on the outer wall of the rotating rod 5 perform a thread action, the first fixing rod 6 is rotated, the first fixing rod 6, pulling stretch rod 21, can carry out the regulation of height, rotate first dead lever 6, let first dead lever 6 indent inwards, first dead lever 6 is embedded into fixed orifices 18 and is fixed, the top movable mounting of stretch rod 21 has fourth pivot 19, second dead lever 17 runs through the top of stretch rod 21, the outer wall of fourth pivot 19 is provided with six holes all around, the both ends of second dead lever 17 are provided with the screw thread, stretch rod 21 top inner wall left side is provided with the hole, and the hole inner wall is provided with the internal thread, second dead lever 17 runs through the hole of fourth pivot 19 outer wall and extends to in the left hole of stretch rod 21, rotate second dead lever 17, effect through the screw thread, let second dead lever 17 extract, rotate fourth pivot 19, can let fourth pivot 19 adjust the angle of show board 7 according to the height, make the more convenient of self observation, make the teaching simpler.

The top of the fourth rotating shaft 19 is fixedly provided with a display board 7 through a triangle 20, the front of the display board 7 is provided with a circular groove 8, the bottom of the inner wall of the circular groove 8 is movably provided with a fixing device 9, the fixing device 9 comprises a fixing seat 91, a first sliding groove 92, a spring 93, a clamping plate 94 and a second rotating shaft 95, the fixing seat 91 is internally provided with the first sliding groove 92, two sides of the inner wall of the first sliding groove 92 are fixedly provided with the spring 93, the left end of the spring 93 is fixedly provided with a clamping plate 94, the middle position of the bottom of the fixing seat 91 is movably provided with the second rotating shaft 95, the clamping plate 94 is embedded in the first sliding groove 92, the clamping plate 94 and the spring 93 form a restoration structure, the bottom surface of the second rotating shaft 95 and the ground of the inner wall of the circular groove 8 are movably arranged, the fixing device 9 and the circular groove 8 form a rotating structure, the clamping plate 94 is pulled, thereby press from both sides tight model, can make the personage model at 8 internal rotations in the circular slot through second pivot 95, carry out the multi-angle show, convenient observation, it is better to make teaching effect, circular slot 8 and fixing device 9 all are provided with six groups, six circular slots 8 of group and fixing device 9 are upper and lower symmetry about first gear 13, six groups of circular slots 8 and fixing device 9 can make the personage model carry out the action contrast, let the personage model present dynamic effect, can let the mr also can carry out the sports action teaching in room, thereby teaching quality has been promoted.

The surface of the display board 7 is internally provided with a second sliding chute 10, a first gear 13 is movably arranged in the middle position in the front of the display board 7 through a third rotating shaft 16, the first gear 13 is meshed with a second gear 15, the left wall of the second gear 15 is fixedly provided with a screw rod 12, the outer wall of the screw rod 12 is sleeved with a first sliding block 14, the screw rod 12 is rotatably connected with the display board 7 through a rotating shaft, the front of the first sliding block 14 is fixedly provided with a fixed plate 11, the second gear 15 is provided with four groups, the four groups of second gears 15 are uniformly wound around the first gear 13, the first gear 13 and the second gear 15 form a transmission structure, the inner wall of the first sliding block 14 is provided with threads, the first sliding block 14 and the screw rod 12 form a rotary type sliding structure, the fixed plate 11 on one side is pulled, the fixed plate 11 drives the first sliding block 14 to move, the threads in the first sliding block 14 drive, thereby drive second gear 15 and rotate, second gear 15 drives first gear 13 and takes place to rotate to drive three other groups of second gear 15 and rotate, thereby make four fixed plates 11 on the show board 7 openly inwards retract simultaneously, until with the bottom surface contact of large-scale mould, make it fixed.

The working principle is as follows: during the use, cabinet 3 is accomodate in the pulling, it needs the model for the teaching to take out from accomodating cabinet 3, bigger model can be placed and accomodating inslot 2, rotate second dead lever 17, effect through the screw thread, let second dead lever 17 extract, rotate fourth pivot 19, can let fourth pivot 19 adjust the angle of show board 7 according to the height, it is more convenient to make self observe, it is simpler to make the teaching, rotate first dead lever 6, screw action through on first dead lever 6 makes first dead lever 6 outwards break away from, the pull stretches out pole 21, the regulation of height can be carried out, rotate first dead lever 6, let first dead lever 6 inwards retract, first dead lever 6 is embedded into and is fixed in fixed orifices 18.

When showing large-scale mould, put large-scale mould on the surface of show board 7, pulling one side fixed plate 11, fixed plate 11 drives first slider 14 and takes place to remove, the inside screw thread of first slider 14 drives lead screw 12 and rotates, thereby it rotates to drive second gear 15, second gear 15 drives first gear 13 and takes place to rotate, thereby it rotates to drive three other group second gears 15, thereby make four fixed plates 11 on the show board 7 openly indent simultaneously inwards, until the bottom surface contact with large-scale mould, make it fixed, rotate show board 7, show board 7 drives pole 21 through set-square 20 and rotates, pole 21 drives bull stick 5 and rotates, bull stick 5 rotates on first pivot 4, can let large-scale mould carry out diversified show, make the teaching quality improve.

When showing small-size personage model, put fixing device 9 with small-size personage model on, pulling splint 94, put small-size personage model, loosen splint 94, make splint 94 recover through spring 93, thereby press from both sides tight model, can make personage model at 8 internal rotations of circular slot through second pivot 95, carry out the multi-angle show, made things convenient for the observation, make the teaching effect better, six groups of circular slots 8 and fixing device 9 can make the personage model move the contrast, let the personage model present dynamic effect, and the teaching quality is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a demonstration board is used in teaching, includes base (1), first dead lever (6) and second dead lever (17), its characterized in that: the improved multifunctional folding table is characterized in that a containing groove (2) is formed in the front of the base (1), a containing cabinet (3) is fixedly installed at the top of the inner wall of the containing groove (2), a rotating rod (5) is movably installed at the middle position of the top of the base (1) through a first rotating shaft (4), an extending rod (21) is arranged on the inner wall of the rotating rod (5), a fixing hole (18) is formed in the front of the extending rod (21), a first fixing rod (6) penetrates through the front of the rotating rod (5) and extends into the fixing hole (18), a fourth rotating shaft (19) is movably installed at the top end of the extending rod (21), a second fixing rod (17) penetrates through the top of the extending rod (21), a display board (7) is fixedly installed at the top of the fourth rotating shaft (19) through a triangular plate (20), a circular groove (8) is formed in the front of the display board (7), and a fixing device (9) is movably installed at the bottom of the inner, second spout (10) have been seted up to the inside surface of show board (7), show board (7) openly inside intermediate position has first gear (13) through third pivot (16) movable mounting, and first gear (13) and second gear (15) meshing, the left wall fixedly connected with lead screw (12) of second gear (15), first slider (14) have been cup jointed to the outer wall of lead screw (12), the positive fixed mounting of first slider (14) has fixed plate (11).

2. A demonstration board for teaching according to claim 1 further comprising: fixing device (9) include fixing base (91), first spout (92), spring (93), splint (94) and second pivot (95), first spout (92) have been seted up to the inside of fixing base (91), the inner wall both sides fixed mounting of first spout (92) has spring (93), the left end fixed mounting of spring (93) has splint (94) the bottom intermediate position department movable mounting of fixing base (91) has second pivot (95).

3. A teaching demonstration board according to claim 2 wherein: splint (94) inlay in first spout (92), and splint (94) and spring (93) constitute elastic construction, the bottom surface and circular slot (8) inner wall ground movable mounting of second pivot (95), rotary type structure is constituteed with circular slot (8) in fixing device (9).

4. A demonstration board for teaching according to claim 1 further comprising: the circular groove (8) and the fixing device (9) are provided with six groups, and the six groups of the circular groove (8) and the fixing device (9) are vertically symmetrical relative to the first gear (13).

5. A demonstration board for teaching according to claim 1 further comprising: second gear (15) are provided with four groups, four groups second gear (15) evenly encircle around first gear (13), and first gear (13) and second gear (15) constitute the rotary type structure, the inner wall of first slider (14) is provided with the screw thread, and first slider (14) and lead screw (12) constitute rotary type sliding construction.

6. A demonstration board for teaching according to claim 1 further comprising: the outer wall of fourth pivot (19) is provided with six groups of holes all around, the both ends of second dead lever (17) are provided with the screw thread, stretch out pole (21) top inner wall left side and be provided with the hole, and the hole inner wall is provided with the internal thread, second dead lever (17) run through in the hole of fourth pivot (19) outer wall extends to stretch out the left hole of pole (21).