CN215895747U

CN215895747U - Trigonometric function teaching aid

Info

Publication number: CN215895747U
Application number: CN202122195988.XU
Authority: CN
Inventors: 潘瑛芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-12
Filing date: 2021-09-12
Publication date: 2022-02-22
Anticipated expiration: 2031-09-12

Abstract

The utility model discloses a trigonometric function teaching aid, which relates to the technical field of teaching equipment and comprises a fixed base and a driving assembly, wherein a supporting column is fixedly arranged on the upper end surface of the fixed base, a mounting plate is fixedly arranged at the upper end of the supporting column, a protective box is clamped on the upper end surface of the mounting plate, a display board is movably arranged in the protective box, the driving assembly comprises a crank, a driving rod and a protective shell, one end of the driving rod is fixedly connected with the crank, and a limiting sliding sleeve is sleeved on the outer surface of the driving rod.

Description

Trigonometric function teaching aid

Technical Field

The utility model relates to the technical field of teaching equipment, in particular to a trigonometric function teaching aid.

Background

The trigonometric function is used as the content of mathematics in middle school, and occupies a heavy position in the mathematics of first class, and the trigonometric function relates to a plurality of theorems, definitions and formulas, because some students can not understand the theorems, definitions and formulas well, the difficulty is easily met because of being difficult to remember and apply, and the nonideal teaching effect of teacher teaching and student learning is caused, so that the enthusiasm of student learning is influenced, and a mathematical trigonometric function teaching aid needs to be used.

And current mathematics trigonometric function teaching aid, there is the usage single, can not effectively adjust as required, the demonstration on the triangle-shaped each side still stops on the basis of blackboard mapping when the operation of the introduction trigonometric function of teacher, the problem of wasting time and energy, the poor student of the low demonstration effect of operating performance can not fast direct observation the result of demonstrating, and when current mathematics trigonometric function teaching aid used, often need manually take up, increase teacher's intensity of labour, and often can not effectively hold tightly when using, lead to the trigonometric function teaching aid to drop and damage, and the maintenance is comparatively wasted time and energy, consequently, need provide a trigonometric function teaching aid in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses a trigonometric function teaching aid to solve the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a trigonometric teaching aid comprising:

the device comprises a fixed base, a supporting column is fixedly arranged on the surface of the upper end of the fixed base, an installation plate is fixedly arranged at the upper end of the supporting column, a protection box is clamped on the surface of the upper end of the installation plate, and a display board is movably arranged in the protection box;

drive assembly, drive assembly includes crank, actuating lever and protective housing, actuating lever one end and crank fixed connection, actuating lever surface cover is equipped with spacing sliding sleeve.

Preferably, the protective housing is provided with two, two the inside equal activity of protective housing is provided with drive gear, two be provided with the hold-in range through the drive gear activity between the protective housing, the tooth's socket has been seted up to the hold-in range surface.

Preferably, the protective housing surface is provided with the dodge gate, the fixed card strip that is provided with of protective housing lower extreme fixed surface, the protective housing passes through the mutual joint of card strip and mounting panel upper end surface, the protective housing can be dismantled, the fixed handle that is provided with in protective housing one side.

Preferably, the show board includes writing panel and drawing panel, the slide rail has been seted up all around to drawing panel surface, be provided with the movable rod through the slider activity on the slide rail, the movable rod is provided with two, show board below is provided with adjusting part.

Preferably, the adjusting part comprises a fixed plate, a movable plate and a threaded pipe, a gear ring is fixedly arranged at the middle end of the outer surface of the threaded pipe, and the gear ring is meshed with the tooth grooves on the outer surface of the synchronous belt.

Preferably, threaded rod, two equal threaded connection in screwed pipe both ends the threaded rod keeps away from the one end of screwed pipe and all fixes and is provided with the connecting piece, both ends are all movable about the connecting piece and are provided with the bracing piece, the upper end and the fly leaf swing joint of connecting piece upper end bracing piece, the upper end of connecting piece lower extreme bracing piece and the upper end surface swing joint of fixed plate.

Preferably, show board lower extreme is provided with the dust and collects the box, the fixed instrument receiver that is provided with in mounting panel lower extreme surface center, unable adjustment base lower extreme surface four corners is provided with the gyro wheel.

The utility model discloses a trigonometric function teaching aid, which has the following beneficial effects:

1. this trigonometric function teaching aid effectively drives the actuating lever through manual cranking and rotates, rotates through the actuating lever and effectively drives the inside drive gear of a protective housing and rotates, rotates through drive gear and effectively drives the hold-in range and rotate.

2. This trigonometric function teaching aid rotates through the hold-in range and effectively drives gear ring and screwed pipe and rotates, because screwed pipe and threaded rod threaded connection, rotate through the screwed pipe, effectively realize the threaded rod and remove along the screwed pipe horizontal direction, realize the shrink and the expansion of two threaded rods, through two threaded rod inside shrinkages, effectively drive the connecting piece and be close to each other, and then effectively drive the bracing piece angle through the connecting piece and effectively change, and then realize that the bracing piece effectively supports fly leaf and show board, the person of facilitating the use imparts knowledge to students on next step.

Drawings

FIG. 1 is a cross-sectional view of a front view of a body construction of the present invention;

FIG. 2 is a schematic view of the card protection case of the present invention;

FIG. 3 is a schematic diagram of the operation of the drive assembly of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at A according to the present invention;

fig. 5 is an enlarged view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. a fixed base; 101. a roller; 2. a support pillar; 3. mounting a plate; 301. a tool storage box; 4. a protective box; 401. clamping the strip; 402. a movable door; 403. a handle; 5. a display board; 501. a writing panel; 502. a drawing panel; 503. a slide rail; 504. a movable rod; 505. a dust collection box; 6. a drive assembly; 601. a crank; 602. a drive rod; 603. a limiting sliding sleeve; 604. a protective shell; 605. a synchronous belt; 7. an adjustment assembly; 701. a fixing plate; 702. a movable plate; 703. a threaded pipe; 704. a gear ring; 705. a threaded rod; 706. a connecting member; 707. a support rod.

Detailed Description

The embodiment of the utility model discloses a trigonometric function teaching aid, which comprises a fixed base 1, wherein a supporting column 2 is fixedly arranged on the upper end surface of the fixed base 1, an installation plate 3 is fixedly arranged at the upper end of the supporting column 2, a protection box 4 is clamped on the upper end surface of the installation plate 3, and a display plate 5 is movably arranged in the protection box 4;

meanwhile, the device further comprises a driving assembly 6, the driving assembly 6 comprises a crank 601, a driving rod 602 and a protective shell 604, one end of the driving rod 602 is fixedly connected with the crank 601, and a limiting sliding sleeve 603 is sleeved on the outer surface of the driving rod 602.

According to the illustration in fig. 3, two protective cases 604 are provided, a transmission gear is movably arranged inside each of the two protective cases 604, a synchronous belt 605 is movably arranged between the two protective cases 604 through the transmission gear, a tooth space is formed in the outer surface of the synchronous belt 605, the crank 601 is manually shaken to effectively drive the driving rod 602 to rotate, the driving rod 602 rotates to effectively drive the transmission gear inside one protective case 604 to rotate, and the transmission gear rotates to effectively drive the synchronous belt 605 to rotate.

According to shown in the attached

drawing

2, 4 surfaces of protective housing are provided with

dodge gate

402, 4 lower extreme fixed surface of protective housing are provided with card strip 401, protective housing 4 is through calorie strip 401 and 3 upper end surface mutual joint of mounting panel, protective housing 4 can be dismantled, 4 fixed handles 403 that are provided with in protective housing one side, through being provided with dodge gate 402, protective housing 4 is conveniently effectively opened and overhauls, hold handle 403 pulling protective housing 4 through setting up, can effectively make card strip 401 break away from mounting panel 3, conveniently carry protective housing 4 alone, the transportation of being convenient for simultaneously.

According to fig. 1, the display board 5 includes a writing panel 501 and a drawing panel 502, a sliding rail 503 is provided around the outer surface of the drawing panel 502, a movable rod 504 is movably provided on the sliding rail 503 through a sliding block, two movable rods 504 are provided, and through the arrangement of the movable rods 504 and the sliding rail 503, the movable rods 504 slide along the sliding rail 503 through the sliding block, which is effective for assisting a user in drawing.

According to the attached fig. 1, 4 and 5, an adjusting component 7 is arranged below the display board 5, the adjusting component 7 comprises a fixed plate 701, a movable plate 702 and a threaded pipe 703, a gear ring 704 is fixedly arranged at the middle end of the outer surface of the threaded pipe 703, the gear ring 704 is meshed with the tooth space of the outer surface of a synchronous belt 605, threaded rods 705 are respectively in threaded connection with both ends of the threaded pipe 703, a connecting member 706 is fixedly arranged at one end of each threaded rod 705 away from the threaded pipe 703, supporting rods 707 are respectively movably arranged at both upper and lower ends of the connecting member 706, the upper end of the supporting rod 707 at the upper end of the connecting member 706 is movably connected with the movable plate 702, the gear ring 704 and the threaded pipe 703 are effectively driven to rotate by the rotation of the synchronous belt 605, the threaded pipe 703 is connected with the threaded rods 705, the threaded rod 705 is effectively moved along the horizontal direction of the threaded pipe 703 by the rotation of the threaded pipe 703, realize two threaded rod 705's shrink and expansion, through two threaded rod 705 internal contraction, effectively drive connecting piece 706 and be close to each other, and then effectively drive bracing piece 707 angle through connecting piece 706 and effectively change, and then realize that bracing piece 707 effectively supports and plays activity board 702 and show board 5, the person of facilitating the use carries out teaching on next step.

According to fig. 1, show 5 lower extremes of board are provided with dust and collect box 505, the fixed instrument receiver 301 that is provided with in the fixed instrument of mounting panel 3 lower extreme surface center, unable adjustment base 1 lower extreme surface four corners is provided with gyro wheel 101, collect box 505 through being provided with the dust, effectively be used for collecting the dust, guarantee the inside cleanness of protective housing 4, through being provided with instrument receiver 301, effectively accomodate drawing teaching tool or books etc., facilitate the use, through being provided with gyro wheel 101, conveniently remove this trigonometric function teaching aid, adjusting position labour saving and time saving.

The working principle is as follows: the utility model discloses a trigonometric function teaching aid, when in use, a crank 601 is shaken manually to effectively drive a driving rod 602 to rotate, the driving rod 602 effectively drives a transmission gear inside the protective shell 604 to rotate, the transmission gear rotates to effectively drive the synchronous belt 605 to rotate, the synchronous belt 605 rotates to effectively drive the gear ring 704 and the threaded pipe 703 to rotate, because the threaded pipe 703 is in threaded connection with the threaded rod 705, the threaded rod 705 can effectively move along the horizontal direction of the threaded pipe 703 by the rotation of the threaded pipe 703, the contraction and expansion of the two threaded rods 705 can be realized, by retracting the two threaded rods 705 inward, the connecting members 706 are effectively brought closer together, the connecting piece 706 effectively drives the supporting rod 707 to effectively change the angle, so that the supporting rod 707 effectively supports the movable plate 702 and the display plate 5, and a user can conveniently perform the next teaching;

further, through being provided with movable rod 504 and slide rail 503, movable rod 504 is slided along slide rail 503 through the slider, and effective convenient auxiliary user draws, through being provided with dodge gate 402, conveniently effectively opens guard box 4 and overhauls, holds handle 403 pulling guard box 4 through setting up, can effectively make card strip 401 break away from mounting panel 3, conveniently carries guard box 4 alone, the transportation of being convenient for simultaneously.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. 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. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A trigonometric function teaching aid, comprising:

the protective device comprises a fixed base (1), wherein a supporting column (2) is fixedly arranged on the surface of the upper end of the fixed base (1), an installation plate (3) is fixedly arranged on the upper end of the supporting column (2), a protective box (4) is clamped on the surface of the upper end of the installation plate (3), and a display plate (5) is movably arranged in the protective box (4);

drive assembly (6), drive assembly (6) include crank (601), actuating lever (602) and protective housing (604), actuating lever (602) one end and crank (601) fixed connection, actuating lever (602) surface cover is equipped with spacing sliding sleeve (603).

2. A trigonometric function teaching aid according to claim 1, wherein: the two protective housings (604) are movably provided with two transmission gears inside the two protective housings (604), a synchronous belt (605) is movably arranged between the two protective housings (604) through the transmission gears, and a tooth socket is formed in the outer surface of the synchronous belt (605).

3. A trigonometric function teaching aid according to claim 1, wherein: protective housing (4) surface is provided with dodge gate (402), the fixed surface of lower extreme of protective housing (4) is provided with card strip (401), protective housing (4) are through card strip (401) and the mutual joint of mounting panel (3) upper end surface, protective housing (4) can be dismantled, fixed handle (403) that is provided with in protective housing (4) one side.

4. A trigonometric function teaching aid according to claim 1, wherein: show board (5) are including writing panel (501) and drawing panel (502), slide rail (503) have been seted up all around to drawing panel (502) surface, be provided with movable rod (504) through the slider activity on slide rail (503), movable rod (504) are provided with two, show board (5) below is provided with adjusting part (7).

5. A trigonometric function teaching aid according to claim 4, wherein: the adjusting assembly (7) comprises a fixing plate (701), a movable plate (702) and a threaded pipe (703), a gear ring (704) is fixedly arranged at the middle end of the outer surface of the threaded pipe (703), and the gear ring (704) is meshed with a tooth groove on the outer surface of the synchronous belt (605).

6. A trigonometric function teaching aid according to claim 5, wherein: threaded rods (705) are connected to two ends of the threaded pipe (703) in a threaded mode, connecting pieces (706) are fixedly arranged at one ends, far away from the threaded pipe (703), of the two threaded rods (705), supporting rods (707) are movably arranged at the upper end and the lower end of each connecting piece (706), the upper ends of the supporting rods (707) at the upper end of each connecting piece (706) are movably connected with the movable plate (702), and the upper ends of the supporting rods (707) at the lower end of each connecting piece (706) are movably connected with the upper end surface of the fixed plate (701).

7. A trigonometric function teaching aid according to claim 1, wherein: show board (5) lower extreme is provided with dust collection box (505), the fixed instrument receiver (301) that is provided with in mounting panel (3) lower extreme surface center, unable adjustment base (1) lower extreme surface four corners is provided with gyro wheel (101).