CN216020071U

CN216020071U - Chinese teaching aid

Info

Publication number: CN216020071U
Application number: CN202023282777.1U
Authority: CN
Inventors: 葛瑞影
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-03-15
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a Chinese teaching aid, and relates to the technical field of education and teaching equipment. Has the advantages that: through the ingenious design of the supporting mechanism, when the supporting plates rotate inwards, the supporting plates can be hung at the lower ends of the bottom plates under the action of the elastic force of the springs, the bottom ends of the supporting plates are far away from the ground, a teacher can move through the universal wheels, when needing to give lessons and write, the teacher can rotate the supporting plates until the supporting plates are vertically contacted with the ground, at the moment, the universal wheels are far away from the ground, the phenomenon that the teacher randomly moves the blackboard during writing is prevented, the stability of the blackboard during writing is improved, and time and labor are saved; through the setting of telescopic link mechanism, gear and motor, can reciprocate the blackboard according to the difference of mr's height, the mr of the different heights of being convenient for gives lessons and writes, novel structure, design benefit.

Description

Chinese teaching aid

Technical Field

The utility model relates to the technical field of education and teaching equipment, in particular to a Chinese teaching aid.

Background

Present chinese mr generally can all use the blackboard when giving lessons outdoors, current blackboard is difficult for removing mostly, need artificially move when outdoor teaching, waste time and energy, even remove through the gyro wheel, but mr can make the blackboard remove at will under the influence of gyro wheel when writing, use inconvenience very, and the height of blackboard under the general condition is fixed, teacher to different heights can not carry out altitude mixture control to the blackboard, the partly usable floor area of blackboard has been caused and can not effectively be utilized, and most of blackboards are difficult for the pivoted, can not make the classmates all around see, give lessons to mr and caused certain trouble.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving the above problems and providing a Chinese teaching aid.

The utility model realizes the purpose through the following technical scheme:

a Chinese teaching aid comprises a bottom plate, a support frame and a blackboard, wherein the front side and the rear side of the lower surface of the bottom plate are symmetrically and fixedly provided with support mechanisms, each support mechanism comprises an ear plate, a support plate, a round shaft, a connecting column and a spring, the ear plates are symmetrically and fixedly connected to the lower surface of the bottom plate, the middle ends and the lower ends of the inner sides of the two ear plates are symmetrically and fixedly connected with the round shaft, the round shaft is sleeved with the support plate, the middle part of the inner side of the support plate is fixedly connected with the connecting column, the middle part of the connecting column is fixedly connected with the spring, the other end of the spring is fixedly connected to the middle part of the lower surface of the bottom plate, the central position of the upper surface of the bottom plate is connected with a telescopic rod mechanism through a bearing, the telescopic rod mechanism comprises a telescopic rod inner cylinder, a telescopic rod outer cylinder, a plane tooth, a convex block and a groove, the support frame is fixedly connected to the middle part of the upper surface of the bottom plate, one side inside the support frame is provided with a motor, the utility model discloses a telescopic link, including bottom plate, telescopic link, gear, telescopic link urceolus, recess and lug cooperation joint, the output shaft of motor has the gear through the key-type connection, bottom plate upper surface central point puts and is connected with the cylinder in the telescopic link through the bearing, cylinder integrated into one piece has the lug in the telescopic link, the cylinder has cup jointed the telescopic link urceolus in the telescopic link, telescopic link urceolus inside seted up with lug complex recess, recess and lug cooperation joint, lower extreme integrated into one piece has the plane tooth in the telescopic link urceolus surface, the plane tooth is connected with gear engagement, telescopic link urceolus upper end runs through support frame central point and extends to the outside, telescopic link urceolus upper end fixedly connected with blackboard, the blackboard is located the top of support frame.

Preferably, the four corners of the bottom plate are provided with universal wheels, and the universal wheels are provided with brake pads.

Preferably, the bottom end of one side of the blackboard is provided with a placing box.

Preferably, the number of the supporting mechanisms is two, and the supporting mechanisms are located on the inner side of the universal wheel.

Has the advantages that: through the ingenious design of the supporting mechanism, when the supporting plates rotate inwards, the supporting plates can be hung at the lower ends of the bottom plates under the action of the elastic force of the springs, the bottom ends of the supporting plates are far away from the ground, a teacher can move through the universal wheels, when needing to give lessons and write, the teacher can rotate the supporting plates until the supporting plates are vertically contacted with the ground, at the moment, the universal wheels are far away from the ground, the phenomenon that the teacher randomly moves the blackboard during writing is prevented, the stability of the blackboard during writing is improved, and time and labor are saved; through the arrangement of the telescopic rod mechanism, the gear and the motor, the blackboard can be moved up and down according to different heights of teachers, teachers with different heights can give lessons and write conveniently, and the use area of the blackboard is increased; through the design of cylinder, lug, telescopic link urceolus and recess in the telescopic link, the mr can rotate telescopic link mechanism through rotating the blackboard, and the mr of being convenient for will write the content on the blackboard to classmate show all around, novel structure, design benefit is fit for promoting and using.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a Chinese teaching aid according to the present invention;

FIG. 2 is a schematic right-side sectional view of a support frame and a motor of the teaching aid according to the present invention;

FIG. 3 is a perspective view of the bottom plate and the support mechanism of the Chinese teaching aid of the present invention in a rotated state;

fig. 4 is a top view of the telescopic rod mechanism of the Chinese teaching aid.

The reference numerals are explained below:

1. a base plate; 2. a support frame; 3. a telescopic rod mechanism; 301. an inner cylinder of the telescopic rod; 302. an outer cylinder of the telescopic rod; 303. a face tooth; 304. a bump; 305. a groove; 4. a blackboard; 401. placing the box; 5. a gear; 6. a universal wheel; 7. a support mechanism; 701. an ear plate; 702. a support plate; 703. a circular shaft; 704. connecting columns; 705. a spring; 8. an electric motor.

Detailed Description

The technical scheme of the utility model is further explained by combining the accompanying drawings as follows:

as shown in fig. 1-4, a Chinese teaching aid comprises a bottom plate 1, a support frame 2 and a blackboard 4, wherein two support mechanisms 7 are arranged at the front and rear symmetrical ends of the lower surface of the bottom plate 1, the support mechanisms 7 are used for keeping a universal wheel 6 away from the ground so that the bottom end of a support plate 702 can contact the ground, and the stability of the blackboard 4 during writing is improved, the two support mechanisms 7 are arranged, one is fixedly arranged at the front side of the blackboard 4, the other is fixedly arranged at the rear side of the blackboard 4, the support mechanisms 7 are symmetrically arranged in the front and rear direction so that the support plate 702 can well stabilize the blackboard 4 during supporting, the support mechanisms 7 comprise ear plates 701, support plates 702, circular shafts 703, connecting columns and springs 705, the ear plates 701 are symmetrically and fixedly connected to the lower surface of the bottom plate 1, four ear plates 701 are arranged, each two ear plates are used for fixedly connecting the circular shafts 703, the middle and lower ends of the inner sides of the two ear plates 701 are symmetrically and fixedly connected with the circular shafts 703, four round shafts 703 are provided, each two round shafts is a pair, the round shafts 703 are used for being sleeved with a support plate 702, the support plate 702 can rotate, the round shafts 703 are sleeved with the support plates 702, the middle upper ends of the support plates 702 are provided with through holes matched with the round shafts 703, the through holes are matched and rotatably connected with the round shafts 703, the middle parts of the inner sides of the support plates 702 are fixedly connected with connecting columns 704, the connecting columns 704 can enable the two connected support plates 702 to be always positioned on the round shafts 703, meanwhile, the middle parts of the connecting columns 704 are connected with springs, the middle parts of the connecting columns 704 are fixedly connected with springs 705, the other ends of the springs 705 are fixedly connected to the middle parts of the lower surface of the bottom plate 1, when the support plates 702 rotate to a place far away from the ground, the support plates 702 have a certain inclination angle with the bottom plate 1, the connecting columns 704 also rotate with the support plates 702, the middle parts of the connecting columns 704 are fixedly connected with the springs, the support plates 702 can be in a suspended state 705 through elasticity, the support plate 702 is not contacted with the ground, a teacher can conveniently move the blackboard 4 through the universal wheels 6, the central position of the upper surface of the bottom plate 1 is connected with the telescopic rod mechanism 3 through the bearing, the telescopic rod mechanism 3 can adjust the height of the blackboard 4 and can rotate the blackboard 4 at the same time, the telescopic rod mechanism 3 comprises a telescopic rod inner cylinder 301, a telescopic rod outer cylinder 302, a plane tooth 303, a convex block 304 and a groove 305, the middle part of the upper surface of the bottom plate 1 is fixedly connected with a support frame 2, the central position of the upper end of the support frame 2 is provided with a through hole matched with the telescopic rod outer cylinder 302, the support frame 2 is used for installing and fixing a motor 8, one side inside the support frame 2 is provided with the motor 8, the motor 8 is used for providing power, an output shaft of the motor 8 is connected with the gear 5 through a key, the central position of the upper surface of the bottom plate 1 is connected with the telescopic rod inner cylinder 301 through the bearing, the telescopic rod inner cylinder 301 can rotate at the upper end of the bottom plate 1, meanwhile, the telescopic rod outer barrel 302 is sleeved with the convex block 304, the convex block 304 is matched and clamped with a groove 305 formed in the telescopic rod outer barrel 302, the telescopic rod outer barrel 302 can rotate with the telescopic rod inner cylinder 301 at the same time, the blackboard 4 can rotate, the telescopic rod inner cylinder 301 is sleeved with the telescopic rod outer barrel 302, the telescopic rod outer barrel 302 is used for fixedly connecting the blackboard 4, the height of the blackboard 4 can be adjusted, the groove 305 matched with the convex block 304 is formed in the telescopic rod outer barrel 302, the groove 305 is matched and clamped with the convex block 304, a plane tooth 303 is integrally formed at the middle lower end of the surface of the telescopic rod outer barrel 302, the plane tooth 303 is meshed and connected with a gear 5 and is used for enabling the telescopic rod outer barrel 302 to move up and down, the blackboard 4 can be adjusted in height, and the upper end of the telescopic rod outer barrel 302 penetrates through the central position of the support frame 2 and extends to the outer side, telescopic link urceolus 302 upper end fixedly connected with blackboard 4, blackboard 4 is used for the mr to write and give lessons, blackboard 4 is located the top of support frame 2, universal wheel 6 is installed in 1 bottom four corners of bottom plate, universal wheel 6 is used for removing, universal wheel 6 is equipped with the brake block, one side bottom of blackboard 4 is installed and is placed box 401, it is used for placing chalk and 4 grooves of blackboard to place box 401, supporting mechanism 7 is equipped with two, supporting mechanism 7 is located the inboard of universal wheel 6.

The working principle is as follows: when a teacher needs to give lessons and write, the blackboard 4 is moved to a proper position under the action of the universal wheels 6, after the movement is finished, the teacher rotates the two support mechanisms 7 to the outside, the specific operation is that the support plate 702 is rotated, the bottom end of the support plate 702 is vertically contacted with the ground, the spring 705 is stretched again, the universal wheels 6 are far away from the ground at the moment, the blackboard 4 can be prevented from moving randomly when the teacher writes, the motor 8 is started, the telescopic rod outer barrel 302 can move up and down under the meshing action of the gear 5 and the plane teeth 303, the height of the blackboard 4 can be adjusted by the forward and backward rotation of the motor 8 according to the self height, after the proper position is adjusted, the motor 8 is closed, the teacher can give lessons and write through the blackboard 4, after the writing is finished, under the matching of the convex blocks 304 on the inner column 301 and the grooves 305 formed in the telescopic rod outer barrel 302, the mr can rotate telescopic link mechanism 3 through rotating blackboard 4, and the mr can demonstrate the student all around with writing the content on blackboard 4 this moment, uses convenience very.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a chinese teaching aid, includes bottom plate (1), support frame (2) and blackboard (4), its characterized in that: supporting mechanisms (7) are symmetrically installed on the front side and the rear side of the lower surface of the bottom plate (1), each supporting mechanism (7) comprises an ear plate (701), a supporting plate (702), a round shaft (703), a connecting column (704) and a spring (705), the ear plates (701) are symmetrically and fixedly connected to the lower surface of the bottom plate (1), the ear plates (701) are symmetrically and fixedly connected to the round shaft (703) at the inner side of the bottom plate (701) and the round shaft (703) at the inner side of the bottom plate (701), the supporting plate (702) is sleeved on the round shaft (703), the connecting column (704) is fixedly connected to the inner side of the supporting plate (702), the spring (705) is fixedly connected to the middle of the lower surface of the bottom plate (1), the middle of the upper surface of the bottom plate (1) is connected with a telescopic rod mechanism (3) through a bearing, and the telescopic rod mechanism (3) comprises a telescopic rod inner cylinder (301), The middle part of the upper surface of the bottom plate (1) is fixedly connected with a support frame (2), one side inside the support frame (2) is provided with a motor (8), an output shaft of the motor (8) is connected with a gear (5) through a key, the central position of the upper surface of the bottom plate (1) is connected with a telescopic rod inner cylinder (301) through a bearing, the telescopic rod inner cylinder (301) is integrally formed with the projection (304), the telescopic rod inner cylinder (301) is sleeved with the telescopic rod outer cylinder (302), the telescopic rod outer cylinder (302) is internally provided with a groove (305) matched with the projection (304), the groove (305) is matched and clamped with the projection (304), the middle lower end of the surface of the telescopic rod outer cylinder (302) is integrally formed with a plane tooth (303), and the plane tooth (303) is meshed and connected with the gear (5), the utility model discloses a telescopic link urceolus (302) upper end runs through support frame (2) central point and puts and extend to the outside, telescopic link urceolus (302) upper end fixedly connected with blackboard (4), blackboard (4) are located the top of support frame (2).

2. A chinese teaching aid according to claim 1 wherein: the universal wheels (6) are installed at four corners of the bottom plate (1), and the brake pads are arranged on the universal wheels (6).

3. A chinese teaching aid according to claim 1 wherein: the bottom end of one side of the blackboard (4) is provided with a placing box (401).

4. A chinese teaching aid according to claim 1 wherein: the number of the supporting mechanisms (7) is two, and the supporting mechanisms (7) are located on the inner side of the universal wheel (6).