CN215495589U

CN215495589U - High school mathematics stereograph demonstration teaching aid

Info

Publication number: CN215495589U
Application number: CN202122016130.2U
Authority: CN
Inventors: 杨景泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-11
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a high school mathematics three-dimensional figure demonstration teaching aid, and belongs to the technical field of mathematical teaching. The utility model provides a high school mathematics stereograph demonstration teaching aid, includes the fixed plate, the connecting rod outer wall is linear equidistant cover and is equipped with a plurality of solid fixed rings, gu the fixed ring inner wall is the longitudinal symmetry structure and has set firmly two pillars, is located two of left side upper end be equipped with extension spring for solid fixed ring's position between the connecting rod, extension spring both ends symmetry has set firmly two connecting seats, symmetrical structure is equipped with dog and snap ring respectively around inside being of connecting seat, connecting seat inside wall front end is equipped with the blank admittedly. The utility model not only facilitates the analysis of teachers on the geometric solid, but also enables students to observe various data and three-dimensional forms of the geometric solid clearly, reduces the learning difficulty, simultaneously enables the teaching process to be more vivid, facilitates the students to master the three-dimensional geometric solid, and has strong practicability.

Description

High school mathematics stereograph demonstration teaching aid

Technical Field

The utility model relates to the technical field of mathematics teaching, in particular to a high school mathematics three-dimensional figure demonstration teaching aid.

Background

The solid geometry is a traditional name of three-dimensional Euclidean space geometry in mathematics, because the solid geometry is a living space, in the teaching of the solid geometry, a teacher guides students to process measurement problems of volumes of different shapes, such as regular or irregular solid geometries of cylinders, cones, frustum, balls, prisms, wedges, bottle caps and the like, however, in the existing teaching process, the teacher usually shows solid figures in a hand drawing mode, so that not only is the students required to have enough space imagination, but also the drawn figures are more complicated and more difficult to distinguish due to the gradually increased auxiliary lines in the calculation process, and the requirements on the calculation power and the space imagination of the students are further improved.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a high school mathematics three-dimensional figure demonstration teaching aid to solve the problems in the background technology.

2. Technical scheme

A high school mathematics three-dimensional figure demonstration teaching aid comprises a fixed plate, wherein two magnetic suction plates are symmetrically embedded in the rear wall of the fixed plate, a plurality of circular grooves are uniformly formed in the front wall of the fixed plate in a square array arrangement, connecting rods are inserted in the circular grooves, an inserting column is fixedly arranged in the middle of the rear wall of each circular groove, a column groove is formed in the rear wall of each connecting rod relative to the position of the inserting column, a plurality of extrusion plates are fixedly arranged at the front end of the inner wall of each circular groove in an annular equidistant mode, clamping blocks are fixedly arranged at the rear ends of the inner side walls of the extrusion plates, clamping grooves are formed in the outer walls of the connecting rods relative to the positions of the clamping blocks, a plurality of fixing rings are sleeved on the outer walls of the connecting rods in a linear equidistant mode, two supporting columns are fixedly arranged on the inner walls of the fixing rings in an up-and down symmetrical structure, a tension spring is arranged between the two connecting rods positioned at the upper end of the left side and relative to the position of the fixing rings, two connecting seats are symmetrically arranged at the two ends of the tension spring, the connecting seat is internally provided with a check block and a snap ring in a front-back symmetrical structure respectively, a reset spring is fixedly arranged between the inner wall of the rear side of the snap ring and the rear wall of the check block, and a white board is fixedly arranged at the front end of the inner side wall of the connecting seat.

Preferably, the circular groove front side is big-end-up's round platform structure, the connecting rod rear end is in the cooperation of pegging graft with the circular groove rear portion, the post is inserted and is in the cooperation of pegging graft with the post groove.

Preferably, the stripper plate is big-end-up's hollow round platform structure, stripper plate inner wall and connecting rod outer wall rear end extrusion fit, the joint groove is the annular structure, and is a plurality of the joint piece all cooperates with joint groove joint.

Preferably, the inner wall of the fixing ring is in clearance fit with the outer wall of the connecting rod, and the inner side end of the strut is connected and fixed with the outer wall of the connecting rod.

Preferably, the connecting seat is U type structure, the snap ring is J type structure, the dog is L type structure, dog outside end back wall closely laminates with snap ring front end portion antetheca, snap ring medial extremity is fixed with connecting seat inner wall connection, dog medial extremity is articulated with the connecting seat.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

1. the teaching aid is provided with the fixing ring, the clamping ring and the white board, and a teacher can show a more accurate solid geometric figure in a solid space under the cooperation of the fixing ring, the clamping ring and the white board, so that the teacher can conveniently analyze the geometric figure, a student can clearly observe various data and solid forms of the geometric figure, the learning difficulty is reduced, meanwhile, the teaching process is more vivid, students can conveniently master solid geometry, and the teaching aid is high in practicability.

2. The utility model is provided with the circular groove, the connecting rod, the extrusion plate and the clamping block, a teacher can install a proper amount of connecting rods on the fixing plate according to the course requirements, and through the structure, the display of each side of different figures is not influenced by redundant connecting rods, so that the demonstration effect is clearer, and meanwhile, the effect of demonstrating a plurality of geometric bodies on one fixing plate can be achieved, and the teacher can have the contrast and high flexibility in the analysis of the geometric bodies.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic view of the connection relationship between the connecting rod and the connecting seat according to the present invention;

FIG. 4 is an exploded view of the connecting socket of the present invention;

FIG. 5 is a rear view of the connecting rod of the present invention;

fig. 6 is a partial sectional structural view of the fixing plate of the present invention.

The reference numbers in the figures illustrate: 1. a fixing plate; 2. a magnetic attraction plate; 3. a circular groove; 4. a connecting rod; 5. inserting a column; 6. A column groove; 7. a pressing plate; 8. a clamping block; 9. a clamping groove; 10. a fixing ring; 11. a pillar; 12. an extension spring; 13. a connecting seat; 14. a stopper; 15. a snap ring; 16. a return spring; 17. a white board.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

a high school mathematics solid figure demonstration teaching aid comprises a fixed plate 1, two magnetic suction plates 2 are symmetrically embedded in the rear wall of the fixed plate 1, a teacher can suck the fixed plate 1 on a blackboard through the magnetic suction plates 2 when using the device to teach solid geometric contents, a plurality of circular grooves 3 are uniformly arranged on the front wall of the fixed plate 1 in a square array, connecting rods 4 are inserted into the circular grooves 3, inserting columns 5 are fixedly arranged in the middle of the rear wall of the circular grooves 3, column grooves 6 are arranged on the rear wall of the connecting rods 4 relative to the inserting columns 5, a plurality of extrusion plates 7 are fixedly arranged on the front end of the inner wall of the circular grooves 3 in an annular equidistant manner, clamping blocks 8 are fixedly arranged at the rear ends of the inner side walls of the extrusion plates 7, clamping grooves 9 are arranged on the outer wall of the connecting rods 4 relative to the clamping blocks 8, a plurality of fixing rings 10 are sleeved on the outer wall of the connecting rods 4 in a linear equidistant manner, two columns 11 are fixedly arranged on the inner wall of the fixing rings 10 in an up-down symmetrical structure, be located between two connecting rods 4 of left side upper end and be equipped with extension spring 12 for the position of solid fixed ring 10, extension spring 12 both ends symmetry has set firmly two connecting seats 13, and connecting seat 13 is inside to be around symmetrical structure be equipped with dog 14 and snap ring 15 respectively, has set firmly reset spring 16 between 15 rear side inner walls of snap ring and the dog 14 rear wall, and connecting seat 13 inside wall front end is equipped with blank 17 admittedly.

Specifically, the front side of the circular groove 3 is of a circular truncated cone structure with a large front part and a small rear part, the rear end of the connecting rod 4 is in inserting fit with the rear part of the circular groove 3, and the inserting column 5 is in inserting fit with the column groove 6.

Further, the extrusion plate 7 is a hollow round table structure with a large front part and a small rear part, the inner wall of the extrusion plate 7 is in extrusion fit with the rear end of the outer wall of the connecting rod 4, the clamping groove 9 is of an annular structure, and the clamping blocks 8 are all in clamping fit with the clamping groove 9.

Further, the solid fixed ring 10 inner wall and the 4 outer wall clearance fit of connecting rod, 11 medial extremes of pillar are fixed with 4 outer wall connections of connecting rod, the teacher can insert appropriate amount connecting rod 4 in circular slot 3 according to the size of the figure of drawing that needs, connecting rod 4 can be firmly fixed inside circular slot 3 in the extrusion effect of stripper plate 7 and the joint piece 8 and the joint cooperation that corresponds joint groove 9, and its tip can not take place the slope yet under the guide effect of inserting post 5, so that alright guarantee that the interval of each connecting rod 4 keeps unanimous.

Furthermore, the connecting seat 13 is a U-shaped structure, the snap ring 15 is a J-shaped structure, the stopper 14 is an L-shaped structure, the rear wall of the outer side end of the stopper 14 is closely attached to the front wall of the front side end of the snap ring 15, the inner side end of the snap ring 15 is fixedly connected to the inner wall of the connecting seat 13, the inner side end of the stopper 14 is hinged to the connecting seat 13, a teacher can refer to the side length data and the position relation of a graph to be drawn, fix a plurality of extension springs 12 to the fixing ring 10 as the sides of the geometric body, the teacher can rotate the stopper 14 forward to open a gap enough for the fixing ring 10 to pass through between the positions where the stopper 14 is in contact with the snap ring 15, then clamp the fixing ring 10 into the snap ring 15 and release the stopper 14 to close the opening under the action of the reset spring 16, and both ends are respectively fixed to the designated fixing ring 10 in the same way, so that the side length and the position of each vertex of the geometric body can be accurately simulated, finally, the teacher can mark the side length or the included angle corresponding to the vertex on the white board 17 by using the erasable pen, so that the device can show the shape of the geometric body more accurately.

The working principle is as follows: when a teacher uses the device to teach the solid geometric contents, the fixing plate 1 can be adsorbed on the blackboard through the magnetic adsorption plate 2, then a proper amount of connecting rods 4 are inserted into the circular grooves 3 according to the size of the graph to be drawn, the connecting rods 4 can be firmly fixed in the circular grooves 3 in the extrusion effect of the extrusion plate 7 and the clamping fit of the clamping blocks 8 and the corresponding clamping grooves 9, the end parts of the connecting rods 4 can not incline under the guiding action of the insertion columns 5, so that the distance among the connecting rods 4 can be kept consistent, then the teacher can refer to the side length data and the position relation of the graph to be drawn, fix the stretching springs 12 as the sides of the geometric bodies on the fixing ring 10, firstly rotate the stop block 14 forwards to open a gap which is enough for the fixing ring 10 to pass through between the contact positions of the stop block 14 and the clamping ring 15, then clamp the fixing ring 10 in the clamping ring 15 and release the stop block 14 to enable the fixing ring 10 to close the opening under the action of the reset spring 16, both ends are fixed respectively on appointed solid fixed ring 10 with the same reason, so can be accurate simulate out the length of side of geometry and the position at each summit, and the teacher still can use erasable pen to mark length of side or the contained angle that this summit corresponds on blank 17 at last for the shape of geometry can be demonstrated more accurately to this device.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high school mathematics stereograph demonstration teaching aid, includes fixed plate (1), its characterized in that: the magnetic suction plate is characterized in that two magnetic suction plates (2) are symmetrically embedded in the rear wall of the fixed plate (1), the front wall of the fixed plate (1) is square array and is uniformly provided with a plurality of circular grooves (3), connecting rods (4) are inserted in the circular grooves (3), inserting columns (5) are fixedly arranged in the middle of the rear wall of the circular grooves (3), column grooves (6) are formed in the positions of the inserting columns (5) in the rear wall of the connecting rods (4), a plurality of extruding plates (7) are fixedly arranged at the front ends of the inner walls of the circular grooves (3) at equal intervals in an annular mode, clamping blocks (8) are fixedly arranged at the rear ends of the inner side walls of the extruding plates (7), clamping grooves (9) are formed in the positions of the outer walls of the connecting rods (4) relative to the clamping blocks (8), a plurality of fixing rings (10) are sleeved on the outer walls of the connecting rods (4) at equal intervals in a linear mode, two supporting columns (11) are arranged on the inner walls of the fixing rings (10) in a vertically symmetrical structure, two that are located the left side upper end be equipped with extension spring (12) for the position of solid fixed ring (10) between connecting rod (4), extension spring (12) both ends symmetry has set firmly two connecting seats (13), symmetrical structure is equipped with dog (14) and snap ring (15) respectively around connecting seat (13) is inside, reset spring (16) have set firmly between snap ring (15) rear side inner wall and dog (14) rear wall, connecting seat (13) inside wall front end is equipped with blank (17) admittedly.

2. The high school mathematics stereograph demonstration teaching aid of claim 1, characterized in that: the round platform structure that the front side of circular slot (3) is big-end-on-end, connecting rod (4) rear end is pegged graft with circular slot (3) rear portion and is cooperated, it pegs graft with post groove (6) and cooperates to insert post (5).

3. The high school mathematics stereograph demonstration teaching aid of claim 1, characterized in that: the extrusion plate (7) is a hollow round platform structure with a large front part and a small back part, the inner wall of the extrusion plate (7) is in extrusion fit with the rear end of the outer wall of the connecting rod (4), the clamping groove (9) is of an annular structure, and the clamping blocks (8) are matched with the clamping groove (9) in a clamping manner.

4. The high school mathematics stereograph demonstration teaching aid of claim 1, characterized in that: the inner wall of the fixing ring (10) is in clearance fit with the outer wall of the connecting rod (4), and the inner side end of the strut (11) is connected and fixed with the outer wall of the connecting rod (4).

5. The high school mathematics stereograph demonstration teaching aid of claim 1, characterized in that: connecting seat (13) are U type structure, snap ring (15) are J type structure, dog (14) are L type structure, dog (14) outside end back wall closely laminates with snap ring (15) front end portion antetheca, snap ring (15) medial extremity is fixed with connecting seat (13) inner wall connection, dog (14) medial extremity is articulated with connecting seat (13).