CN210617677U

CN210617677U - Teaching board for primary school mathematics

Info

Publication number: CN210617677U
Application number: CN201921256203.1U
Authority: CN
Inventors: 刘传琳; 于继波
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-26
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a primary school's mathematics is with teaching board, include drive belt one and fix two mount pads on the blackboard, two all rotate on the mount pad and be connected with a pivot one, and the one end of pivot one runs through mount pad and fixed mounting has the knob, the positive symmetry fixed mounting of blackboard has two cover bodies one, two all rotate on the cover body one and be connected with a pivot two, and be equipped with drive mechanism between pivot two and the corresponding pivot one. Has the advantages that: utilize the student to drive the knob and rotate and can accomplish required operation, and set to two student concurrent operation, reduce intensity of labour on the one hand, on the other hand can also improve the tacit between the student, simultaneously through setting up the connecting axle and can rotate alone the pivot three for two students rotate and still can accomplish required operation when having certain desynchrony, be convenient for better clean the blackboard and collect the clearance to the chalk dust after cleaning.

Description

Teaching board for primary school mathematics

Technical Field

The utility model relates to a teaching board especially relates to a teaching board is used to primary school's mathematics.

Background

Through retrieval, chinese patent No. CN207657477U discloses a blackboard for primary school mathematics teaching, which comprises a frame body, wherein an upper cavity and a lower cavity are respectively arranged at the upper end and the lower end of the frame body, the blackboard is arranged between the upper cavity and the lower cavity of the frame body, and scrubbing devices which can circularly rotate and are used for scrubbing the blackboard surface from top to bottom are symmetrically arranged at the two sides of the blackboard.

The authorization file still has the following defects: the two driving motors are used as power sources, the using cost of the whole operation is high, if each classroom is provided with two driving motors for working, the purchasing and using cost is high for a plurality of primary schools, and the burden is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art and providing a teaching board for primary school mathematics.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a primary school's mathematics is with teaching board, includes drive belt one and fixes two mount pads on the blackboard, two all rotate on the mount pad and be connected with a pivot one, and the one end of pivot one runs through mount pad and fixed mounting has the knob, the positive symmetry fixed mounting of blackboard has two cover bodies one, two all rotate on the cover body one and be connected with a pivot two, and be equipped with drive mechanism, two between pivot two and corresponding pivot one two are gone up and all fixed a cylinder, two of having cup jointed in the pivot two rotate between the cylinder and be connected with the connecting axle, two all the fixed cup joint has the brush on the cylinder.

In the teaching board for primary mathematics, the end surface of the first cover body on the left side is in an L shape, and the first transmission belt is positioned in the corresponding first cover body.

In the teaching board for primary mathematics, the transmission mechanism comprises a first helical gear and a second helical gear, the first helical gear is fixedly sleeved on the first rotating shaft, the second helical gear is fixedly sleeved on the second rotating shaft, and the first helical gear and the second helical gear are mutually meshed.

In the teaching board for primary school mathematics, the lower end part of the front surface of the blackboard is fixedly provided with a second cover body, the end surface of the second cover body is L-shaped, the lower end part of the second cover body is separately provided with a collecting tank, the bottom wall of the collecting tank is fixedly provided with a supporting block, two sides of the supporting block are rotatably connected with a third rotating shaft, and a second driving belt is arranged between the third rotating shaft and the corresponding second rotating shaft.

In foretell primary school is teaching board for mathematics, equal fixed mounting has a stopper on the diapire of collecting vat, two equal threaded connection has a collection piece in the pivot three, and collects the positive contact of one side and the blackboard of piece, and the opposite side and the cover body two contacts of piece of collection.

In the teaching board for primary school mathematics, the cover body II is provided with a plurality of clamping grooves, the size of the clamping groove in the middle is larger than that of other clamping grooves, the clamping grooves are communicated with the collecting grooves, each clamping groove is fixedly provided with a collecting box in a clamping manner, and the lower end of each collecting box is fixedly provided with a convex block.

Compared with the prior art, the utility model discloses the advantage lies in:

1: the operation needs the simultaneous operation of students (applying the rotating force to the knob), so that the matching ability among the students can be exercised, the matching among the pupils is strengthened, and the tacit between the students can be improved.

2: rotate through a connecting axle between two pivots two and connect and set up two pivot three that can rotate alone for two students rotate and still can accomplish required operation when having certain desynchrony, be convenient for better clean the blackboard and collect the clearance to the chalk dust after cleaning.

3: the movable collection block is convenient for gathering the chalk dust falling onto the collection groove, so that the chalk dust falls onto the collection box, and the collection box can be quickly taken down from the cover body II, so that the chalk dust is convenient to clean.

To sum up, the utility model discloses utilize the student to drive the knob and rotate and can accomplish required operation, and set two student concurrent operation to, reduce intensity of labour on the one hand, on the other hand can also improve the tacit between the student, simultaneously through setting up the connecting axle and can rotate alone the pivot three for two students rotate and still can accomplish required operation when having certain desynchrony, be convenient for better clean the blackboard and collect the clearance to the chalk dust after cleaning.

Drawings

Fig. 1 is a schematic structural view of a teaching board for primary mathematics according to the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of the structure of portion A in FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure: 1 blackboard, 2 cover bodies I, 3 mounting seats, 4 rotating shafts I, 5 bevel gears I, 6 bevel gears II, 7 rotating shafts II, 8 rollers, 9 hairbrushes, 10 transmission belts I, 11 cover bodies II, 12 collecting tanks, 13 rotating shafts III, 14 limiting blocks, 15 collecting blocks, 16 transmission belts II, 17 supporting blocks, 18 clamping grooves, 19 collecting blocks, 20 convex blocks, 21 knobs and 22 connecting shafts.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a teaching board for primary school's mathematics includes drive belt one 10 and fixes two mount pads 3 on blackboard 1, all rotates on two mount pads 3 to be connected with a pivot one 4, and the one end of pivot one 4 runs through mount pad 3 and fixed mounting has knob 21, and the setting of knob 21 is convenient for drive pivot one 4 and rotates.

Two cover bodies I2 are symmetrically and fixedly arranged on the front surface of the blackboard 1, the end surface of the left cover body I2 is L-shaped (seen from top to bottom), a driving belt I10 is positioned in the corresponding cover body I2, and the cover body I2 is arranged and has a certain shielding protection effect on the driving belt I10.

The two cover bodies I2 are rotatably connected with a rotating shaft II 7, a transmission mechanism is arranged between the rotating shaft II 7 and the corresponding rotating shaft I4, the transmission mechanism is composed of a helical gear I5 and a helical gear II 6, the helical gear I5 is fixedly sleeved on the rotating shaft I4, the helical gear II 6 is fixedly sleeved on the rotating shaft II 7, and the helical gear I5 and the helical gear II 6 are meshed with each other.

A roller 8 is fixedly sleeved on the two second rotating shafts 7, a connecting shaft 22 is connected between the two rollers 8 in a rotating mode, the two rollers 8 are fixedly sleeved with brushes 9, and the two rollers 8 can rotate relatively due to the arrangement of the connecting shaft 22.

The lower end part of the front face of the blackboard 1 is fixedly provided with a second cover body 11, the end face of the second cover body 11 is L-shaped (seen from two sides), the lower end part of the second cover body 11 is separately provided with a collecting groove 12, the bottom wall of the collecting groove 12 is fixedly provided with a supporting block 17, two sides of the supporting block 17 are rotatably connected with a third rotating shaft 13, and a second driving belt 16 is arranged between the third rotating shaft 13 and the corresponding second rotating shaft 7.

All fixed mounting has a stopper 14 on the diapire of collecting vat 12, and equal threaded connection has a collection piece 15 on three 13 of two pivots, and collects one side of piece 15 and blackboard 1's front contact, and collects the opposite side and the cover body two 11 contacts of piece 15, and the setting here makes collection piece 15 remove along with the rotation of three 13 pivots to collect the chalk dust that falls on collecting vat 12.

A plurality of clamping grooves 18 are formed in the second cover body 11, the size of the clamping groove 18 in the middle of the second cover body is larger than that of other clamping grooves 18, the clamping grooves 18 are communicated with the collecting groove 12, a collecting box 19 is fixed to each clamping groove 18 in a clamped mode, a protruding block 20 is fixedly mounted at the lower end of each collecting box 19, a groove is formed in each collecting box 19, and chalk dust collected by the collecting blocks 15 in a moving mode can be collected conveniently.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The utility model discloses in, two students rotate knob 21 with the hand simultaneously, knob 21 rotates and drives corresponding pivot 4 and rotate, pivot 4 rotates through helical gear 5, the cooperation of helical gear two 6 drives corresponding pivot two 7 and rotates, pivot two 7 rotate and realize through drive belt one 10 that the blackboard eraser carries out detailed understanding to blackboard 1's cleaning (here clean the authorization file that accessible patent number is CN 207657477U), pivot two 7 rotate direct drive with it fixed connection's cylinder 8 rotate, cylinder 8 rotates and drives corresponding brush 9 and rotate, be convenient for clear up the chalk dust on the blackboard eraser, and can take place relative rotation between two cylinders 8, make two student slew velocity (to the rotation of knob 21) different, still can accomplish this operation.

The second rotating shaft 7 rotates to drive the third rotating shaft 13 to rotate through the second driving belt 16, the third rotating shaft 13 rotates to drive the collecting block 15 to move, chalk dust falling onto the collecting groove 12 is collected by the aid of movement of the collecting block 15, the chalk dust is finally collected onto the corresponding collecting box 19, the collecting box 19 can be pulled out of the clamping groove 18 by applying an external force far away from the second cover body 11 to the lug 20 with a hand, and finally collected chalk dust is convenient to clean.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a teaching board for primary school's mathematics, includes drive belt (10) and fixes two mount pads (3) on blackboard (1), its characterized in that, two all rotate on mount pad (3) and be connected with a pivot (4), and the one end of pivot (4) runs through mount pad (3) and fixed mounting has knob (21), the positive symmetry fixed mounting of blackboard (1) has two cover bodies (2), two all rotate on cover body (2) and be connected with a pivot two (7), and be equipped with drive mechanism between pivot two (7) and corresponding pivot (4), two all fixedly cup jointed a cylinder (8) on pivot two (7), two rotate between cylinder (8) and be connected with connecting axle (22), two all fixedly cup jointed brush (9) on cylinder (8).

2. An educational board for primary school mathematics according to claim 1, wherein the end surface of the first cover (2) on the left side is L-shaped and the first belt (10) is located in the corresponding first cover (2).

3. The teaching board for primary school mathematics according to claim 1, wherein said transmission mechanism is composed of a first helical gear (5) and a second helical gear (6), and the first helical gear (5) is fixedly sleeved on the first rotating shaft (4), and the second helical gear (6) is fixedly sleeved on the second rotating shaft (7), and the first helical gear (5) and the second helical gear (6) are engaged with each other.

4. The teaching board for primary school mathematics according to claim 1, wherein the blackboard (1) is fixedly provided with a second cover body (11) at the lower end of the front surface, the end surface of the second cover body (11) is L-shaped, the lower end of the second cover body (11) is separately provided with a collecting groove (12), the bottom wall of the collecting groove (12) is fixedly provided with a supporting block (17), both sides of the supporting block (17) are rotatably connected with a third rotating shaft (13), and a second driving belt (16) is arranged between the third rotating shaft (13) and the corresponding second rotating shaft (7).

5. The teaching board for primary school mathematics according to claim 4, wherein the bottom wall of the collecting groove (12) is fixedly provided with a limiting block (14), two rotating shafts III (13) are both in threaded connection with a collecting block (15), one side of the collecting block (15) is in contact with the front surface of the blackboard (1), and the other side of the collecting block (15) is in contact with the cover body II (11).

6. The teaching board for primary school mathematics according to claim 5, wherein said second cover body (11) is provided with a plurality of slots (18), the size of the slot (18) in the middle is larger than the size of the other slots (18), the slots (18) are communicated with the collecting groove (12), each slot (18) is fixedly clamped with a collecting box (19), and the lower end of the collecting box (19) is fixedly provided with a convex block (20).