CN214541248U

CN214541248U - Dynamic demonstration device for junior middle school mathematics parabola

Info

Publication number: CN214541248U
Application number: CN202120162620.0U
Authority: CN
Inventors: 冷晓冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-29
Anticipated expiration: 2031-01-22

Abstract

The application discloses a dynamic demonstration device for a junior middle school mathematics parabola, which comprises a demonstration board, a demonstration mechanism, a containing mechanism and an adjusting mechanism; the demonstration mechanism comprises a fixed plate and a connecting plate; the storage mechanism comprises a writing board and a rotating rod; the adjusting mechanism comprises a sleeve plate, a vertical plate and a supporting plate. The fixed plate and the connecting plate are arranged to facilitate dynamic demonstration of the parabola, movement can be achieved only by pressing the movable block during display, the movable block can be fixed at any position by the aid of the knob, and calculation is facilitated during teaching; the writing board is arranged to facilitate writing teaching, the writing board is convenient to store and unfold, the practicability of the display device is improved, the limiting block is arranged to facilitate limiting during storage and unfolding, and the operation convenience is improved; be provided with the altitude mixture control that lagging and riser conveniently demonstrate the board, can be adapted to the use under the different teaching environment, and can demonstrate the angle modulation of board, be applicable to the observation of different position students in the classroom.

Description

Dynamic demonstration device for junior middle school mathematics parabola

Technical Field

The application relates to a demonstration device, in particular to a dynamic demonstration device for junior middle school mathematics parabola.

Background

The mathematics in junior high school is a textbook suitable for junior middle school students to study, the book includes the contents of the three-dimensional object planning of junior middle school mathematics, the three-dimensional object integration method and strategy in the ' number and formula ' teaching, the three-dimensional object integration method and strategy in the ' equation and inequality ' teaching, the book also includes the teaching methods of training and cultivation for cultivating students ' interest in learning mathematics, strengthening abstract logic thinking in the mathematical teaching process, the mathematics is generated by counting, calculating, measuring and observing the shape and movement of objects through the use of abstract and logical reasoning, the mathematics category becomes a part of the education in many countries and regions, it is applied in different fields including science, engineering, medicine, economy, finance, etc., mathematicians also study pure mathematics, that is the substantive content of mathematics itself, and not to any practical application.

Junior high school mathematics is the subject of special teaching junior high school student's mathematical knowledge, contains the study of parabola among the junior high school mathematics, draws on the blackboard during ordinary parabola study, is difficult for fully mastering, is difficult to carry out the dynamic demonstration, and the student is difficult for effectively observing in the classroom when the parabola study, is difficult to carry out angle modulation. Therefore, a dynamic demonstration device for the mathematics parabola in the junior middle schools is provided for solving the problems.

Disclosure of Invention

A dynamic demonstration device for junior middle school mathematics parabola comprises a demonstration board, a demonstration mechanism, a receiving mechanism and an adjusting mechanism;

the demonstration mechanism comprises a fixed plate and a connecting plate, the fixed plate and the connecting plate are fixedly connected with the side wall of the demonstration plate, gaps are formed in the middle parts of the fixed plate and the connecting plate, the inside of the fixed plate is fixedly connected with a push block through a spring, the inside of the fixed plate and the inside of the connecting plate are slidably connected with a movable block, and the movable block is in threaded connection with a knob;

the storage mechanism comprises a writing board and a rotating rod, the writing board is rotatably connected with the side wall of the display board, the rotating rod is rotatably connected with the top of the display board, a connecting block is arranged at the end part of the rotating rod, and the connecting block is fixedly connected with a limiting block;

the adjusting mechanism comprises a sleeve plate, a vertical plate and a supporting plate, the sleeve plate is fixedly connected with the side wall of the display plate, the sleeve plate is movably inserted into the vertical plate, the vertical plate is fixedly connected with the top of the supporting plate, the top surface of the supporting plate is fixedly connected with a guide plate, the guide plate is slidably connected with the sliding plate, and the sliding plate is rotatably connected with the bottom end of the display plate through a connecting rod.

Furthermore, the connecting plate is of an oval structure, two fixing plates connected with each other are arranged at the bottom end of the connecting plate, and a gap in the middle of the connecting plate is connected with the knob in a sliding mode.

Further, the fixed plate is parallel to each other and distributes, fixed plate inside and ejector pad sliding connection, the ejector pad contact has the movable block, just fixed plate and connecting plate surface all contact there is the knob.

Further, show board top is equipped with two dwangs, the width of dwang is the same with the width of show board, the width of show board is less than the width of connecting block, connecting block top surface and bottom surface all are equipped with the stopper, the stopper is located show board one side.

Further, show board both sides are equipped with the clipboard of two symmetric distributions, two the clipboard all is connected with the laminating of show board lateral wall, just the clipboard is located between stopper and the show board.

Further, the sleeve plate is located between the two writing boards, the sleeve plate is connected with the vertical plate in a sliding mode, the vertical plate is located on one side of the top face of the supporting plate, and the bottom end of the supporting plate is fixedly connected with the supporting plate through the reinforcing rod.

Further, the backup pad is connected with the bottom plate middle part rotation, the backup pad both sides all with screw rod threaded connection, the screw rod runs through the backup pad and has contacted the bottom plate.

Furthermore, the middle part of the supporting plate is provided with two guide plates which are symmetrically distributed, the two guide plates are of L-shaped structures, a sliding plate is arranged between the guide plates, and the sliding plate is connected with the surface of the supporting plate in a sliding manner.

Furthermore, a connecting rod and a bolt are respectively arranged at two ends of the sliding plate, and the bolt penetrates through the sliding plate and extends into the supporting plate.

Furthermore, a plurality of jacks which are uniformly distributed are formed in the surface of the supporting plate and are all located between the guide plates, and each jack is internally connected with a bolt in a threaded manner.

The beneficial effect of this application is: the application provides a mathematical parabola dynamic demonstration device in beginning with height adjusting function just can realize parabola dynamic demonstration function.

Drawings

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

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic front view of an embodiment of the present application;

FIG. 3 is a schematic diagram of a front view of a sleeve plate according to an embodiment of the present application;

FIG. 4 is a side view of a slider according to an embodiment of the present application;

FIG. 5 is a schematic external side view of an embodiment of the present application;

fig. 6 is a schematic top view of an embodiment of the present application.

In the figure: 1. the demonstration board, 2, the bottom plate, 3, the fixed plate, 4, the connecting plate, 5, the clearance, 6, the spring, 7, the ejector pad, 8, the movable block, 9, the knob, 10, the clipboard, 11, the dwang, 12, the connecting block, 13, the stopper, 14, the lagging, 15, the riser, 16, the stiffener, 17, the backup pad, 18, the baffle, 19, the slide, 20, the connecting rod, 21, the bolt, 22, the screw rod, 23, the jack.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a dynamic demonstration apparatus for mathematics parabola in junior middle school includes a demonstration board 1, a demonstration mechanism, a receiving mechanism and an adjusting mechanism;

the demonstration mechanism comprises a fixed plate 3 and a connecting plate 4, the fixed plate 3 and the connecting plate 4 are fixedly connected with the side wall of the demonstration plate 1, gaps 5 are formed in the middle parts of the fixed plate 3 and the connecting plate 4, the inside of the fixed plate 3 is fixedly connected with a push block 7 through a spring 6, the inside of the fixed plate 3 and the inside of the connecting plate 4 are slidably connected with a movable block 8, and the movable block 8 is in threaded connection with a knob 9;

the storage mechanism comprises a writing board 10 and a rotating rod 11, the writing board 10 is rotatably connected with the side wall of the display board 1, the rotating rod 11 is rotatably connected with the top of the display board 1, a connecting block 12 is arranged at the end part of the rotating rod 11, and the connecting block 12 is fixedly connected with a limiting block 13;

the adjusting mechanism comprises a sleeve plate 14, a vertical plate 15 and a supporting plate 17, the sleeve plate 14 is fixedly connected with the side wall of the display plate 1, the sleeve plate 14 is movably inserted into the vertical plate 15, the vertical plate 15 is fixedly connected with the top of the supporting plate 17, the top surface of the supporting plate 17 is fixedly connected with a guide plate 18, the guide plate 18 is slidably connected with a sliding plate 19, and the sliding plate 19 is rotatably connected with the bottom end of the display plate 1 through a connecting rod 20.

The connecting plate 4 is of an oval structure, two fixing plates 3 which are connected with each other are arranged at the bottom end of the connecting plate 4, a gap 5 in the middle of the connecting plate 4 is connected with a knob 9 in a sliding mode, the moving of a movable block 8 is achieved through the connecting plate 4 and the fixing plates 3, and the dynamic parabola display function is achieved; the fixed plates 3 are distributed in parallel, the inner parts of the fixed plates 3 are connected with the push blocks 7 in a sliding mode, the push blocks 7 are in contact with the movable blocks 8, the surfaces of the fixed plates 3 and the connecting plates 4 are in contact with the knobs 9, the knobs 9 are used for moving with the movable blocks 8 simultaneously, and the operation and teaching are facilitated when the fixed plates are fixed at specific positions; the top of the display board 1 is provided with two rotating rods 11, the width of each rotating rod 11 is the same as that of the display board 1, the width of the display board 1 is smaller than that of the connecting block 12, the top surface and the bottom surface of the connecting block 12 are both provided with limiting blocks 13, the limiting blocks 13 are located on one side of the display board 1, and the rotating rods 11 are used for driving the limiting blocks 13 to move so as to limit the writing board 10 conveniently; two writing boards 10 which are symmetrically distributed are arranged on two sides of the display board 1, the two writing boards 10 are attached to the side wall of the display board 1, and the writing boards 10 are located between the limiting blocks 13 and the display board 1 and used for writing teaching on the writing boards 10, so that teaching efficiency is improved; the sleeve plate 14 is positioned between the two writing plates 10, the inner part of the sleeve plate 14 is connected with the vertical plate 15 in a sliding manner, the vertical plate 15 is positioned on one side of the top surface of the supporting plate 17, the bottom end of the supporting plate 17 is fixedly connected with the supporting plate 17 through the reinforcing rod 16, the supporting plate 17 is used for supporting the vertical plate 15, and the sleeve plate 14 can move on the surface of the vertical plate 15 to realize the height adjusting function; the supporting plate 17 is rotatably connected with the middle of the bottom plate 2, two sides of the supporting plate 17 are in threaded connection with the screw 22, the screw 22 penetrates through the supporting plate 17 and contacts the bottom plate 2, the supporting plate 17 is used for rotating on the bottom plate 2, and the limiting of the supporting plate 17 is realized through the screw 22 after the angle is adjusted; two guide plates 18 which are symmetrically distributed are arranged in the middle of the supporting plate 17, the two guide plates 18 are both of an L-shaped structure, a sliding plate 19 is arranged between the guide plates 18, and the sliding plate 19 is in sliding connection with the surface of the supporting plate 17; the two ends of the sliding plate 19 are respectively provided with a connecting rod 20 and a bolt 21, and the bolt 21 penetrates through the sliding plate 19 and extends into the supporting plate 17; a plurality of jacks 23 which are uniformly distributed are formed in the surface of the supporting plate 17, the jacks 23 are all located between the guide plates 18, and each jack 23 is internally inserted into a bolt 21 in a threaded manner.

When the adjustable angle adjusting device is used, the sliding plate 19 in the guide plate 18 is pushed to move, the guide plate 18 limits the position of the sliding plate 19 and drives the connecting rod 20 to rotate, the sleeve plate 14 and the display plate 1 are pushed to move in the process of rotating the connecting rod 20 to the vertical position, the height of the display plate 1 is further increased, the sleeve plate 14 is driven to slide in the vertical plate 15 when the display plate 1 moves, the reinforcing rod 16 is arranged to improve the stability during adjustment, after the adjustment is completed, the bolt 21 is screwed, the bolt 21 penetrates through the sliding plate 19 and then is inserted into the corresponding jack 23, the position limitation after the adjustment is realized, the operation is convenient, when the angle adjustment is required during demonstration, the support plate 17 is rotated to realize the angle adjustment on the bottom plate 2 by rotating the support plate 17, after the adjustment is completed, the screw rod 22 penetrates through the support plate 17 and abuts against the bottom plate 2 by screwing the screw rod 22, the position limitation of the support plate 17 is realized, the fixation after adjustment is convenient;

during demonstration, the knob 9 is moved to the inside of the fixed plate 3 at one side, the knob 9 drives the movable block 8 to move and contact with the push block 7, so that the movable block 8 drives the push block 7 to move downwards, the spring 6 is in a compressed state, after the operation is completed, the knob 9 is released, the movable block 8 is pushed by the elasticity of the spring 6 to move, so that the movable block 8 moves in the connecting plate 4 to realize parabolic dynamic demonstration, the movable block 8 drives the knob 9 to move in the gap 5 to realize parabolic demonstration, the knob 9 is pressed against the fixed plate 3 or the connecting plate 4 by rotating the knob 9 to realize the limiting of the movable block 8, the movable block 8 is conveniently fixed at a specific position, the writing board 10 is rotated to rotate to the outside of two sides of the display board 1 during teaching, the rotating rod 11 is rotated, the rotating rod 11 drives the connecting block 12 and the limiting block 13 to move simultaneously, so that the limiting block 13 is limited at one side of the top end of the writing board 10, and then accomplish spacingly, realize the fixed of clipboard 10, through write the teaching on clipboard 10, realize the improvement of teaching efficiency with the cooperation of dynamic demonstration parabola, rotate dwang 11 to opposite side after the use is accomplished, rotate clipboard 10 to with show board 1 laminate each other after realize spacingly through another stopper 13 equally, conveniently operate.

The application has the advantages that:

1. the fixed plate and the connecting plate are arranged to facilitate dynamic demonstration of the parabola, movement can be achieved only by pressing the movable block during display, the movable block can be fixed at any position by the aid of the knob, and calculation is facilitated during teaching;

2. the writing board is arranged to facilitate writing teaching, the writing board is convenient to store and unfold, the practicability of the display device is improved, the limiting block is arranged to facilitate the limiting during the storing and unfolding, and the operation convenience is improved;

3. this application is provided with the height control that lagging and riser conveniently demonstrate the board, can be adapted to the use under the different teaching environment, and can demonstrate the angle modulation of board, is applicable to the observation of different position students in the classroom, adjusts convenient quick fixed after, reduces the operation degree of difficulty.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a junior middle school mathematics parabola developments presentation device which characterized in that: comprises a display board (1), a demonstration mechanism, a receiving mechanism and an adjusting mechanism;

the demonstration mechanism comprises a fixed plate (3) and a connecting plate (4), the fixed plate (3) and the connecting plate (4) are fixedly connected with the side wall of the demonstration plate (1), gaps (5) are formed in the middle parts of the fixed plate (3) and the connecting plate (4), the fixed plate (3) is fixedly connected with a push block (7) through a spring (6), the fixed plate (3) and the connecting plate (4) are slidably connected with a movable block (8), and the movable block (8) is in threaded connection with a knob (9);

the storage mechanism comprises a writing board (10) and a rotating rod (11), the writing board (10) is rotatably connected with the side wall of the display board (1), the rotating rod (11) is rotatably connected with the top of the display board (1), a connecting block (12) is arranged at the end part of the rotating rod (11), and the connecting block (12) is fixedly connected with a limiting block (13);

the adjusting mechanism comprises a sleeve plate (14), a vertical plate (15) and a supporting plate (17), the sleeve plate (14) is fixedly connected with the side wall of the display plate (1), the sleeve plate (14) is movably inserted into the vertical plate (15), the vertical plate (15) is fixedly connected with the top of the supporting plate (17), the top surface of the supporting plate (17) is fixedly connected with a guide plate (18), the guide plate (18) is slidably connected with a sliding plate (19), and the sliding plate (19) is rotatably connected with the bottom end of the display plate (1) through a connecting rod (20).

2. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: the connecting plate (4) is of an oval structure, two fixing plates (3) which are connected with each other are arranged at the bottom end of the connecting plate (4), and a gap (5) in the middle of the connecting plate (4) is connected with a knob (9) in a sliding mode.

3. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: fixed plate (3) parallel distribution each other, fixed plate (3) inside and ejector pad (7) sliding connection, ejector pad (7) contact has movable block (8), just fixed plate (3) and connecting plate (4) surface all contact has knob (9).

4. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: show board (1) top is equipped with two dwang (11), the width of dwang (11) is the same with the width of show board (1), the width of show board (1) is less than the width of connecting block (12), connecting block (12) top surface and bottom surface all are equipped with stopper (13), stopper (13) are located show board (1) one side.

5. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: show board (1) both sides are equipped with clipboard (10) of two symmetric distributions, two clipboard (10) all are connected with the laminating of show board (1) lateral wall, just clipboard (10) are located stopper (13) and show between board (1).

6. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: the writing board is characterized in that the sleeve plate (14) is located between the two writing boards (10), the inner portion of the sleeve plate (14) is connected with the vertical plate (15) in a sliding mode, the vertical plate (15) is located on one side of the top face of the supporting plate (17), and the bottom end of the supporting plate (17) is fixedly connected with the supporting plate (17) through the reinforcing rod (16).

7. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: backup pad (17) are connected with bottom plate (2) middle part rotation, backup pad (17) both sides all with screw rod (22) threaded connection, screw rod (22) run through backup pad (17) and contact has bottom plate (2).

8. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: the middle of the supporting plate (17) is provided with two guide plates (18) which are symmetrically distributed, the two guide plates (18) are of L-shaped structures, a sliding plate (19) is arranged between the guide plates (18), and the sliding plate (19) is in surface sliding connection with the supporting plate (17).

9. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: the two ends of the sliding plate (19) are respectively provided with a connecting rod (20) and a bolt (21), and the bolt (21) penetrates through the sliding plate (19) and extends into the supporting plate (17).

10. The dynamic demonstration device for junior middle school mathematics parabola according to claim 1, characterized in that: a plurality of jacks (23) which are uniformly distributed are formed in the surface of the supporting plate (17), the jacks (23) are located between the guide plates (18), and each jack (23) is internally in threaded connection with a bolt (21).