CN209895614U - Novel special demonstration of mathematics curve device - Google Patents

Abstract

The utility model discloses a novel special demonstration of mathematics curve device relates to auxiliary teaching aid technical field, this novel special demonstration of mathematics curve device, the power distribution box comprises a box body, the bottom of box is equipped with the transmission shaft, the both ends of transmission shaft all with box swing joint, the one end of transmission shaft runs through box and fixedly connected with steering wheel, the outside both ends of transmission shaft all are connected with the transmission piece, the first support frame of top fixedly connected with of transmission piece, the top of transmission shaft is equipped with the supporting seat, the equal fixedly connected with second support frame in bottom both ends of supporting seat, swing joint has the bracing piece between second support frame and the first support frame, the top swing joint of supporting seat has the curve demonstration board. This novel special presentation device of mathematics curve can fold into a case, has both made things convenient for the storage, and the transport of being convenient for again has made things convenient for the folding of curve demonstration board through setting up box and hinge, has saved occupation space, through setting up flexible pull rod and wheel, has made things convenient for the removal of device.

Description

A New Demonstration Device for Mathematical Curves

technical field

The utility model relates to the technical field of auxiliary teaching aids, in particular to a novel mathematical curve special demonstration device.

Background technique

In mathematics classroom teaching, when learning the knowledge of curves such as parabola hyperbola, teachers need to draw curves on the blackboard to explain to students in a concrete way, but curves are not easy to draw. Teachers need to mark various vectors and data, which requires a lot of money A lot of time delays the progress of the classroom, and now there is a need for a device that can facilitate math teachers to quickly draw curves and demonstrate in the classroom.

A special demonstration device for mathematical curves disclosed in Chinese Utility Model Patent Application Publication CN 206983583 U, the device includes a lower column, the upper end of the lower column is connected to the upper column through a positioning pin, the upper end of the upper column is connected to the lower beam through a connecting sleeve, and the lower beam is connected to the outer beam. Frame, there is a grid plate in the outer frame, the grid plate has vertical and horizontal slots, LED lamp beads are installed in the vertical and horizontal slots, and the vertical axis vector magnetic base and the horizontal axis vector magnet are also placed on the grid plate. The upper part of the outer frame is connected with an upper connecting frame, the upper connecting frame is provided with a magnetic button placement slot, and a vector logo magnetic button is placed in the magnetic button placement slot. Although the device has a simple structure and is convenient to use, the device is not convenient for handling, which affects the use efficiency, and is inconvenient for storage, takes up space, and is not conducive to popularization and use.

In order to solve the above problems, the utility model provides a new type of special demonstration device for mathematical curves.

SUMMARY OF THE INVENTION

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a novel special demonstration device for mathematical curves, which solves the problem of inconvenient handling and storage of the existing curve demonstration teaching aids.

(2) Technical solutions

In order to achieve the above purpose, the present invention is realized through the following technical solutions:

A novel special demonstration device for mathematical curves, including a box body, a transmission shaft is arranged at the bottom of the box body, both ends of the transmission shaft are movably connected with the box body, and one end of the transmission shaft penetrates the box body and is fixedly connected There is a steering wheel, the outer ends of the transmission shaft are connected with transmission blocks, the top of the transmission block is fixedly connected with a first support frame, the upper part of the transmission shaft is provided with a support seat, and the bottom of the support seat is two Both ends are fixedly connected with a second support frame, and a support rod is movably connected between the second support frame and the first support frame. There are two support rods, and the two support rods are arranged in a cross. The middle part of the support rod is movably connected by a fixed shaft, the top end of the support base is movably connected with a curve demonstration board, the outer sides of both ends of the transmission shaft are provided with external threads, and the interior of the transmission block is provided with internal threads, so Both sides of the transmission block are provided with support plates, and the support plates are fixedly connected with the box body.

Optionally, teaching aids are provided inside the box body, and rubber pads are fixedly connected to the four corners of the bottom end of the box body.

Optionally, the curve demonstration board is movably connected to the support base through a hinge, and both the first support frame and the second support frame are movably connected to the support rod through a pin shaft.

Optionally, a telescopic pull rod is fixedly connected to the bottom end of the box body, and a wheel is movably connected to the bottom end of the box body.

Optionally, the transmission shaft is movably connected to the box body through a bearing.

Optionally, the transmission shaft is threadedly connected to the transmission block, and the external threads at both ends of the transmission shaft are arranged in opposite directions.

Optionally, a limit chute is provided on the inner side of the support plate, a limit slider is movably connected in the limit chute, and the limit slider is fixedly connected with the transmission block.

(3) Beneficial effects

The utility model provides a novel mathematical curve special demonstration device, which has the following beneficial effects:

(1) This new type of special demonstration device for mathematical curves can be folded into a box, which is convenient for storage, saves space, is easy to handle, and reduces work intensity. Folding saves the occupied space and increases the practicability of the device. By setting the telescopic rod and the wheel, the movement of the device is facilitated and it is easier to carry.

(2) This new type of special demonstration device for mathematical curves, through the cooperation between the first support frame, the second support frame, the support rod and the fixed shaft, makes the curve demonstration board have the effect of lifting and lowering, and it is convenient to adjust the height of the curve demonstration board , Through the coordination between the transmission shaft, steering wheel and transmission block, it is more time-saving and labor-saving when adjusting the height of the curve demonstration board, and the work efficiency is improved.

Description of drawings

1 is a schematic front view of the box structure of the present utility model;

Fig. 2 is the cross-sectional schematic diagram of the box structure of the utility model;

Fig. 3 is the side sectional schematic diagram of the box structure of the utility model;

4 is a schematic side view of the transmission block and the support seat structure of the present invention;

5 is a schematic top view of the structure of the transmission block of the present invention.

In the figure: 1. Box body; 2. Transmission shaft; 3. Steering wheel; 4. Transmission block; 5. First supporting frame; 6. Supporting seat; 7. Second supporting frame; 8. Support rod; 9. Fixing Shaft; 10. Curve demo board; 11. Hinge; 12. Telescopic rod; 13. Wheel; 14. Bearing; 15. External thread; 16. Pin shaft; 17. Support plate; 18. Limit chute; 19. Limit Bit slider.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

Please refer to Figures 1-5, the present utility model provides a technical solution:

A new type of special demonstration device for mathematical curves, including a box body 1, by arranging the box body 1, the folding of the curve demonstration board 10 is facilitated, the occupied space is saved, and the practicability of the device is increased. The bottom of the box body 1 is provided with a transmission shaft 2. Both ends of the transmission shaft 2 are movably connected with the box body 1. One end of the transmission shaft 2 penetrates the box body 1 and is fixedly connected with the steering wheel 3. The outer ends of the transmission shaft 2 are connected with a transmission block 4, which passes through the transmission shaft. 2. The coordination between the steering wheel 3 and the transmission block 4 saves time and effort when adjusting the height of the curve demonstration board 10 and improves the work efficiency. The top of the transmission block 4 is fixedly connected with the first support frame 5 and the transmission shaft 2 There is a support seat 6 above the support seat 6, and the bottom ends of the support seat 6 are fixedly connected with a second support frame 7, and a support rod 8 is movably connected between the second support frame 7 and the first support frame 5, and the support rod 8 has two The two support rods 8 are arranged in a cross, and the middle parts of the two support rods 8 are movably connected by the fixed shaft 9, and are set through the cooperation between the first support frame 5, the second support frame 7, the support rod 8 and the fixed shaft 9. , so that the curve demonstration board 10 has a lifting effect, which is convenient to adjust the height of the curve demonstration board 10. The top of the support base 6 is movably connected with the curve demonstration board 10, and the outer sides of the two ends of the transmission shaft 2 are provided with external threads 15. The transmission block 4 There are internal threads in the inside of the transmission block 4 , and support plates 17 are provided on both sides of the transmission block 4 , and the support plates 17 are fixedly connected with the box body 1 .

As a kind of optional technical scheme of the present utility model:

There are teaching aids inside the box body 1, and rubber pads are fixedly connected to the four corners of the bottom end of the box body 1. By setting the rubber pads, the box body 1 plays a buffering role when placing the box body 1, so as to avoid the box body 1 from being damaged by shock.

As a kind of optional technical scheme of the present utility model:

The curve demonstration board 10 is movably connected with the support base 6 through the hinge 11, the first support frame 5 and the second support frame 7 are movably connected with the support rod 8 through the pin shaft 16, and the folding of the curve demonstration board 10 is facilitated by setting the hinge 11 , saves the occupied space and increases the practicability of the device.

As a kind of optional technical scheme of the present utility model:

The bottom end of the box body 1 is fixedly connected with a telescopic pull rod 12, and the bottom end of the box body 1 is movably connected with a wheel 13. By setting the telescopic pull rod 12 and the wheel 13, the movement of the device is facilitated and the handling is easier.

As a kind of optional technical scheme of the present utility model:

The transmission shaft 2 is movably connected with the casing 1 through the bearing 14 .

As a kind of optional technical scheme of the present utility model:

The transmission shaft 2 is threadedly connected with the transmission block 4, and the external threads 15 at both ends of the transmission shaft 2 are arranged in reverse.

As a kind of optional technical scheme of the present utility model:

The inner side of the support plate 17 is provided with a limit chute 18, and a limit slider 19 is movably connected in the limit chute 18, and the limit slider 19 is fixedly connected with the transmission block 4. By arranging the support plate 17 and the limit slider 19, A movable track is provided for the transmission block 4 to ensure the stability of the device.

To sum up, the new mathematical curve special demonstration device can be folded into a box, which not only facilitates storage, saves space, but also facilitates handling and reduces work intensity. When moving, the telescopic rod 12 can be pulled out to make The wheel 13 is on the ground, and then the telescopic rod 12 is pulled to move and carry. When in use, open the box 1, rotate the curve demonstration board 10 by 90 degrees, make the curve demonstration board 10 vertical, and then rotate the steering wheel 3, the steering wheel 3 The transmission shaft 2 drives the two transmission blocks 4 to move inward at the same time, the transmission block 4 drives the support base 6 to move upward through the support rod 8 , and the support base 6 drives the curve demonstration board 10 to move upward, and then the curve demonstration board 10 can be used to carry out the curve. demo.

It should be noted that, in the present invention, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may be in direct contact with the first and second features, or the first and second features may be in direct contact with each other. The two features are indirectly contacted through an intermediary. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides a novel special demonstration of mathematics curve device, includes box (1), its characterized in that: the bottom of the box body (1) is provided with a transmission shaft (2), the two ends of the transmission shaft (2) are movably connected with the box body (1), one end of the transmission shaft (2) penetrates through the box body (1) and is fixedly connected with a steering wheel (3), the two ends of the outside of the transmission shaft (2) are connected with transmission blocks (4), the top end of each transmission block (4) is fixedly connected with a first support frame (5), a support seat (6) is arranged above the transmission shaft (2), the two ends of the bottom of the support seat (6) are fixedly connected with second support frames (7), a support rod (8) is movably connected between each second support frame (7) and the first support frame (5), the two support rods (8) are arranged in a crossed manner, and the middle parts of the two support rods (8) are movably connected through a fixed shaft (9), the top swing joint of supporting seat (6) has curve demonstration board (10), external screw thread (15) have all been seted up in the both ends outside of transmission shaft (2), the internal thread has been seted up to the inside of transmission piece (4), the both sides of transmission piece (4) all are equipped with backup pad (17), backup pad (17) and box (1) fixed connection.

2. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the inside of box (1) is equipped with the teaching aid, the bottom four corners fixedly connected with rubber pad of box (1).

3. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the curve demonstration board (10) is movably connected with the supporting seat (6) through a hinge (11), and the first supporting frame (5) and the second supporting frame (7) are movably connected with the supporting rod (8) through a pin shaft (16).

4. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the inside fixedly connected with flexible pull rod (12) in bottom of box (1), the bottom one end swing joint of box (1) has wheel (13).

5. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the transmission shaft (2) is movably connected with the box body (1) through a bearing (14).

6. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the transmission shaft (2) is in threaded connection with the transmission block (4), and the external threads (15) at the two ends of the transmission shaft (2) are arranged in a reverse direction.

7. The special demonstration device for the novel mathematical curve according to claim 1, characterized in that:

the inner side of the supporting plate (17) is provided with a limiting sliding groove (18), a limiting sliding block (19) is movably connected in the limiting sliding groove (18), and the limiting sliding block (19) is fixedly connected with the transmission block (4).

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