CN211857883U

CN211857883U - Mathematical parabola demonstration device

Info

Publication number: CN211857883U
Application number: CN202020970224.6U
Authority: CN
Inventors: 赵洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-11-03
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a mathematics parabola presentation device, including the demonstration platform, top one side of demonstration platform is connected with movable strip, and is connected with the fixed plate of installing on demonstration platform top behind the movable strip, the positive terminal surface of fixed plate all rotates all around and is connected with the rotation post, and four equal fixedly connected with in outer wall both sides of rotating the post twist the piece. The utility model discloses in, when needs are installed between its board and the fixed plate, then can rotate the carousel through the handle earlier, then its threaded rod carries out anticlockwise rotation, then its fixed plate passes through two backward movements of slider, its fixed plate becomes far away from the distance of activity strip, later earlier with its board through inside set up run through the groove cover close four on the fixed plate rotate the post and be vertical two of arranging twist the piece on, twist the piece and twist afterwards to two of its rotation post and move, then it originally is vertical two of arranging twist the piece and be horizontal arranging along with rotating the post rotation back.

Description

Mathematical parabola demonstration device

Technical Field

The utility model relates to a teaching tool technical field especially relates to a mathematics parabola presentation device.

Background

The concept of a parabola named in mathematical education is that in a plane, a locus of points having equal distances to a fixed point and a fixed line is called a parabola, wherein the fixed point is called a focus of the parabola, and the fixed line is called a directrix of the parabola.

The prior mathematical parabola demonstration device does not have a clamping mechanism which can facilitate the installation or disassembly and replacement of the demonstration pen, does not have a moving mechanism which can conveniently draw and show the parabola, and does not have a structure which can conveniently carry out the fixed installation on a fixed plate by opening a writing board with different arc-shaped grooves.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the prior mathematical parabola demonstration device does not have a clamping mechanism which can facilitate the installation or the disassembly and the replacement of the demonstration pen, and does not have a moving mechanism which can conveniently draw the demonstration parabola, and does not have the defect that the writing board provided with different arc-shaped grooves can be conveniently opened to carry out the structure of fixedly installing on the fixed plate, and the proposed mathematical parabola demonstration device.

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

a mathematical parabola demonstration device comprises a demonstration table, wherein one side of the top end of the demonstration table is connected with a movable strip, a fixed plate installed at the top end of the demonstration table is connected with the front rear part of the movable strip, the periphery of the positive end surface of the fixed plate is rotatably connected with rotating columns, two sides of the outer walls of the four rotating columns are fixedly connected with twisting blocks, the outer parts of the four rotating columns are respectively provided with a writing board through a penetrating groove sleeve, the positive end surface of the writing board is provided with an arc-shaped groove, the inner part of the movable strip is provided with a vertical groove in a penetrating manner, two sides of the inner wall of the vertical groove are respectively provided with a first sliding groove, the inner parts of the first sliding grooves are respectively connected with a first sliding block in a sliding manner, a movable block is fixedly connected between the two first sliding blocks, the top end of the movable block is fixedly provided with a fixed clamping plate, the top end, the rear end face of the movable block is fixedly connected with a movable column located inside the arc-shaped groove.

As a further description of the above technical solution:

the arc-shaped groove is connected with the inner wall of the movable column in a fitting manner, and the thickness of the movable block is equal to that of the movable strip.

As a further description of the above technical solution:

clamping mechanism is including seting up two inner chambers in solid fixed splint, and the equal swing joint in inside of two inner chambers has T type post, two the outside of T type post is equipped with the spring that is located two inner chambers respectively, and two T type posts pass solid fixed splint on all through-holes of seting up respectively and extend to the outside fixedly connected with movable splint of solid fixed splint.

As a further description of the above technical solution:

the movable clamping plate and the fixed clamping plate are both provided with arc-shaped clamping openings, the inner walls of the two arc-shaped clamping openings are all provided with racks in a surrounding mode, the outer portion of the movable clamping plate is fixedly connected with a pull ring, and a demonstration pen is connected between the arc-shaped clamping openings formed in the movable clamping plate and the arc-shaped clamping openings formed in the fixed clamping plate.

As a further description of the above technical solution:

the moving mechanism comprises a second sliding groove which is formed in the top end of the demonstration table, a second sliding block is connected to the inside of the second sliding groove in a sliding mode, and a threaded rod is connected to the inside of the second sliding block in a threaded mode.

As a further description of the above technical solution:

the threaded rod is connected with the inner wall of the second sliding groove in a rotating mode, the threaded rod extends to the rotary table fixedly connected to the outer portion of the demonstration table, and a handle convenient to rotate is mounted on the outer portion of the rotary table.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, when the writing board is required to be installed between the writing board and the fixed plate, the rotary disc can be rotated by the handle, the threaded rod rotates anticlockwise, the fixed plate moves backwards through the sliding block II, the distance between the fixed plate and the movable strip becomes far, the writing board is sleeved on the four rotating columns and the two twisting blocks which are vertically arranged through the through grooves which are arranged inside, the two twisting blocks of the rotating columns are twisted, the two twisting blocks which are vertically arranged are horizontally arranged along with the rotation of the rotating columns, the two twisting blocks can fix the writing board on the fixed plate, and the writing board is convenient to install and fix through the arrangement, and meanwhile, the writing board provided with arc grooves with different radians is convenient to replace, thereby realizing the demonstration work of different parabolas, the learning requirements of students are met.

2. The utility model discloses in, under clamping mechanism's effect, when needs press from both sides tightly its demonstration pen, then can be earlier to its pull ring pulling, then its movable clamp plate rebound, intracavity rebound including then its T type post, and compress its spring, then arc between its movable clamp plate and its solid fixed splint presss from both sides the mouth and expandes, be convenient for the manual work put into its arc that expandes with its demonstration pen presss from both sides in the mouth, secondly, release the pull ring, under the reverse action of spring, its movable clamp plate effectively presss from both sides tightly fixedly to its demonstration pen with its solid fixed splint, through this setting, can effectively press from both sides tightly fixedly to its demonstration pen, guarantee the stability of its demonstration pen demonstration drawing parabola process, can conveniently dismantle the change to the demonstration pen through this setting simultaneously, and convenient operation, moreover, the steam generator is simple in structure. .

3. The utility model discloses in, under moving mechanism's effect, threaded rod through threaded connection in the slider two to movable strip bottom connection rotates, then its movable strip can carry out lateral shifting on the demonstration bench, then the movable post that connects on the perpendicular inslot sliding connection's movable block in its movable strip can be along with the movable strip removal in, do parabolic motion in the arc recess of board, then the nib department of the demonstration pen of centre gripping can demonstrate the trajectory of drawing the parabola in the surface of board to its laminating between its movable clamp plate and its solid fixed splint, thereby make things convenient for the demonstration of the clear parabola that sees that the student can be clear, student's efficiency of study has been accelerated, simultaneously through the setting of handle and carousel, the device's interest has been increased.

Drawings

Fig. 1 is a schematic view of an overall structure of a mathematical parabola demonstration device of the utility model;

fig. 2 is a schematic diagram of a right side view of a mathematical parabola demonstration apparatus of the present invention;

FIG. 3 is an enlarged schematic view of the position A of the present invention;

FIG. 4 is an enlarged schematic view of the position B of the present invention;

fig. 5 is an enlarged schematic structural diagram of the middle C of the present invention.

Illustration of the drawings:

1. a demonstration table; 2. a movable bar; 3. a fixing plate; 4. rotating the column; 5. twisting the block; 6. a writing board; 7. a through groove; 8. an arc-shaped groove; 9. a vertical slot; 10. a first sliding chute; 11. a first sliding block; 12. a movable block; 13. fixing the clamping plate; 14. a clamping mechanism; 1401. an inner cavity; 1402. a T-shaped column; 1403. a spring; 1404. a movable splint; 15. a moving mechanism; 1501. a second chute; 1502. a second sliding block; 1503. a threaded rod; 16. a movable column.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, a mathematical parabola demonstration device comprises a demonstration table 1, a movable bar 2, a fixed plate 3, a rotating column 4, a twisting block 5, a writing board 6, a through groove 7, an arc-shaped groove 8, a vertical groove 9, a first sliding groove 10, a first sliding block 11, a movable block 12, a fixed clamping plate 13, a clamping mechanism 14, an inner cavity 1401, a T-shaped column 1402, a spring 1403, a movable clamping plate 1404, a moving mechanism 15, a second sliding groove 1501, a second sliding block 1502, a threaded rod 1503 and a movable column 16, wherein the movable bar 2 is connected to one side of the top end of the demonstration table 1, the fixed plate 3 mounted at the top end of the demonstration table 1 is connected to the right rear of the movable bar 2, the rotating columns 4 are rotatably connected to the periphery of the positive end face of the fixed plate 3, the twisting blocks 5 are fixedly connected to two sides of the outer walls of the four rotating columns 4, the four rotating columns 4 are respectively rotatably connected with the fixed plate 3 through bearings, the cross section of, when the rotating columns 4 are rotated through the two twisting blocks 5, the two twisting blocks 5 can generate friction force on the surfaces of the fixing plates 3 when the rotating columns are rotated to be transversely arranged, so that the writing board 6 can be installed and fixed with the fixing plates 3, the writing board 6 is sleeved outside the four rotating columns 4 through the through grooves 7, the front end surface of the writing board 6 is provided with the arc-shaped groove 8, the inner wall of the arc-shaped groove 8 is smooth and flat, a movable column 16 with a smooth outer wall can move conveniently, the inner part of the movable strip 2 is provided with the vertical groove 9 in a penetrating way, two sides of the inner wall of the vertical groove 9 are provided with the sliding grooves one 10, the inner parts of the two sliding grooves one 10 are connected with the sliding blocks one 11 in a sliding way, the movable block 12 is fixedly connected between the two sliding blocks one 11, the top end of the movable block 12 is fixedly provided with the fixed clamping plate 13, and the top end, moving mechanisms 15 are connected among the movable strips 2, the fixed plate 3 and the demonstration table 1, and movable columns 16 located inside the arc-shaped grooves 8 are fixedly connected to the rear end faces of the movable blocks 12.

Furthermore, the arc-shaped groove 8 is connected with the inner wall of the movable column 16 in a fitting manner, the thickness of the movable block 12 is equal to that of the movable strip 2, the length of the movable column 16 is longer than that of the demonstration pen, and the depth of the arc-shaped groove 8 is smaller than that of the writing board 6.

Further, clamping mechanism 14 is including seting up two inner chambers 1401 inside fixed splint 13, and the equal swing joint in inside of two inner chambers 1401 has T type post 1402, and the outside cover of two T type posts 1402 is equipped with the spring 1403 that is located two inner chambers 1401 respectively, and two T type posts 1402 pass fixed splint 13 respectively and offered some through-holes and extend to fixed splint 13's outside fixedly connected with activity splint 1404, two T type posts 1402 respectively with fixed splint 13 on offer some between the two through-holes swing joint.

Further, all seted up the arc on movable clamp plate 1404 and the solid fixed splint 13 and pressed from both sides the mouth, and the inner wall that two arcs pressed from both sides the mouth all encircles and is equipped with the rack, the setting of rack, it is better to demonstrate the tight effect of pen clamp, the outside fixedly connected with pull ring of movable clamp plate 1404, and be connected with the demonstration pen between the arc that sets up on the arc clamp mouth of setting up on the movable clamp plate 1404 and the solid fixed splint 13, the demonstration pen can set up to pencils such as prior art's pencils, its demonstration pen is when the arc clamp mouth of setting up on the arc clamp mouth of being set up on the movable clamp plate 1404 and the solid fixed splint 13 presss from both sides the mouth tightly, the tip department of its demonstration pen must laminate in the positive terminal surface of clipboard 6 when pressing from both sides tightly, it can demonstrate.

Further, the moving mechanism 15 comprises a second sliding chute 1501 formed in the top end of the demonstration table 1, a second sliding block 1502 is connected to the second sliding chute 1501, a threaded rod 1503 is connected to the second sliding block 1502 in a threaded manner, the bottom ends of the movable strip 2 and the fixed plate 3 are respectively connected with the moving mechanism 15, and the bottom end of the fixed plate 3 is provided with the moving mechanism 15, so that the writing board 6 can be conveniently and fixedly mounted on the fixed plate 3.

Further, the threaded rod 1503 is rotatably connected with the inner wall of the second sliding chute 1501, the threaded rod 1503 extends to the rotary table fixedly connected to the outside of the demonstration table 1, a handle convenient to rotate is mounted on the outside of the rotary table, and the rotary table rotates through the handle, so that the threaded rod 1503 rotates, and the second sliding block 1502 of the threaded rod 1503 can move in the second sliding chute 1501.

The working principle is as follows: when the writing board is used, a teacher can firstly rotate the turntable through the handle, the threaded rod 1503 of the teacher rotates anticlockwise, the fixed plate 3 moves backwards through the second sliding block 1502, the distance between the fixed plate 3 and the movable strip 2 becomes far, then the writing board 6 is sleeved on the four rotating columns 4 on the fixed plate 3 and the two vertically-arranged screwing blocks 5 through the through grooves 7 arranged inside, then the two screwing blocks 5 of the rotating columns 4 are screwed, the two vertically-arranged screwing blocks 5 are horizontally arranged after rotating along with the rotating columns 4, the two screwing blocks 5 can fix the writing board 6 on the fixed plate 3, then the threaded rod 1503 of the teacher rotates clockwise through the handle, the fixed plate 3 moves towards the movable strip 2 through the second sliding block 1502, the arc-shaped groove 8 on the writing board 6 closes the movable column 16, afterwards, it is fixed with its demonstration pen clip through clamping mechanism 14, and finally, the mr rotates through threaded rod 1503 to threaded connection in the slider two 1502 that connects to the bottom of movable strip 2, then its movable strip 2 can carry out lateral shifting on demonstration platform 1, then the movable post 16 that connects on the movable block 12 of vertical sliding connection in its movable strip 2 in the groove 9 can be along with the movable strip 2 removal while, do the parabola motion in the arc recess 8 of board 6, then the nib department of the demonstration pen of centre gripping between its movable splint 1404 and its fixed splint 13 can demonstrate to its surface of laminating board 6 and draw the orbit line of parabola to make things convenient for the clear demonstration of parabola of seeing of student, just accomplish the theory of operation of the device like this.

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 design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The mathematics parabola demonstration device comprises a demonstration table (1) and is characterized in that one side of the top end of the demonstration table (1) is connected with a movable strip (2), a fixed plate (3) installed at the top end of the demonstration table (1) is connected with the front rear side of the movable strip (2), the periphery of the positive end face of the fixed plate (3) is rotatably connected with a rotating column (4), two sides of the outer wall of the four rotating columns (4) are fixedly connected with twisting blocks (5), the outer parts of the four rotating columns (4) are sleeved with a writing board (6) through penetrating grooves (7), the positive end face of the writing board (6) is provided with an arc-shaped groove (8), the inner part of the movable strip (2) is penetrated and provided with a vertical groove (9), two sides of the inner wall of the vertical groove (9) are respectively provided with a first sliding groove (10), and the inner parts of the first sliding grooves (10) are respectively and slidably connected with a, and fixedly connected with movable block (12) between two slider (11), the top fixed mounting of movable block (12) has solid fixed splint (13), and the top of solid fixed splint (13) is connected with clamping mechanism (14), all be connected with moving mechanism (15) between activity strip (2), fixed plate (3) and demonstration platform (1), the rear end face fixedly connected with of movable block (12) is located inside movable post (16) of arc recess (8).

2. A mathematical parabola demonstration apparatus as claimed in claim 1, wherein said arc-shaped groove (8) is in fitting connection with the inner wall of the movable post (16), and the thickness of said movable block (12) is equal to the thickness of the movable bar (2).

3. The mathematical parabola demonstration device according to claim 1, wherein the clamping mechanism (14) comprises two inner cavities (1401) arranged inside the fixed splint (13), and the two inner cavities (1401) are movably connected with T-shaped columns (1402), the two T-shaped columns (1402) are respectively sleeved with springs (1403) arranged in the two inner cavities (1401) at the outer parts thereof, and the two T-shaped columns (1402) respectively pass through holes arranged on the fixed splint (13) and extend to the outer parts of the fixed splint (13) to be fixedly connected with movable splints (1404).

4. The mathematical parabola demonstration device as claimed in claim 3, wherein the movable clamping plate (1404) and the fixed clamping plate (13) are both provided with arc-shaped clamping openings, the inner walls of the two arc-shaped clamping openings are both provided with racks, the outer part of the movable clamping plate (1404) is fixedly connected with a pull ring, and a demonstration pen is connected between the arc-shaped clamping opening formed on the movable clamping plate (1404) and the arc-shaped clamping opening formed on the fixed clamping plate (13).

5. A mathematical parabola demonstration apparatus according to claim 1, wherein the moving mechanism (15) comprises a second sliding chute (1501) provided at the top end of the demonstration table (1), and a second sliding block (1502) is slidably connected to the inside of the second sliding chute (1501), and a threaded rod (1503) is threadedly connected to the inside of the second sliding block (1502).

6. A mathematical parabola demonstration apparatus as claimed in claim 5, wherein the threaded rod (1503) is rotatably connected with the inner wall of the second sliding chute (1501), and the threaded rod (1503) extends to the outer part of the demonstration table (1) and is fixedly connected with a rotary disc, and a handle convenient to rotate is arranged on the outer part of the rotary disc.