CN212391922U

CN212391922U - Mathematical geometry projection device

Info

Publication number: CN212391922U
Application number: CN202020840312.4U
Authority: CN
Inventors: 朱玉玲; 姜仁文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-22
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a mathematical geometry projection arrangement, including the projection case, the bottom fixedly connected with base of projection case, the last fixed surface of base is connected with the backup pad, the surface of backup pad is provided with cardboard and rotor plate, the fixed surface of rotor plate is connected with connecting plate A. This mathematics geometry projection arrangement, through the surface at the backup pad set up the cardboard, the rotor plate, connecting plate A, connecting plate B and fixing bolt, can adjust connecting plate B's length according to the needs of teaching personnel, be convenient for rotate the rotor plate, and then adjust the direction of placing the board, through having set up bracing piece A at the spout, bracing piece B, the jib, adjust spiral shell A and adjusting bolt B, can adjust the jib according to the height of mathematics geometry and the projected angle of teaching needs to carry out the projection with length, can be according to the needs of teaching, the distance of slider slides, adjust the angle of the illumination of projection lamp.

Description

Mathematical geometry projection device

Technical Field

The utility model relates to a mathematical education device technical field specifically is a mathematical geometry projection arrangement.

Background

In mathematical education, high school's mathematics mainly divide into algebra and two parts of geometry, geometry divide into plane analytic geometry again and the geometry of solid two parts of geometry plane analytic geometry is more complicated, because there is not a teaching aid who is exclusively used in teaching plane analytic geometry at present, so, the teacher of giving lessons generally is that blackboard writing adds the mode of dictation and explains the student, not only teacher's work load is great, greatly reduced the efficiency of giving lessons, and the explanation is got up comparatively abstract, the student also is difficult to understand, there is very big degree of difficulty in this part of knowledge of student's grasp, at present, multiple auxiliary device will be applied to in mathematical education, for example: compasses, ruler, protractor etc. are drawn the teaching, can directly show the mathematics shape that needs to be described on the projecting apparatus along with science and technology development, promote the efficiency of mathematics teaching in-process, but projecting apparatus's single structure now, can not carry out level and angle movement transform to projecting apparatus according to the teaching demand, consequently, provide a geometry projection arrangement for mathematics.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a mathematical geometry projection arrangement has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mathematics geometry projection arrangement, includes the projection case, the bottom fixedly connected with base of projection case, the last fixed surface of base is connected with the backup pad, the surface of backup pad is provided with cardboard and rotor plate, the outer fixed surface of rotor plate is connected with connecting plate A, the spout has been seted up to the opposite side of projection case, the inside swing joint of spout has the slider, the last fixed surface of slider is connected with the supporting shoe, the last fixed surface of supporting shoe is connected with bracing piece A, bracing piece A's last surface swing joint has bracing piece B, bracing piece B's one end swing joint has the jib, the surface of jib is provided with the installation pipe, the bottom swing joint of jib has the projection lamp, the board is placed to the last fixed surface of backup pad is connected with.

Optionally, the projection box is made of a projection plate, and a clamping groove is formed in one side of the projection box.

Optionally, the inside swing joint of draw-in groove has the baffle, the upper surface fixed connection of baffle has the handle.

Optionally, the number of the clamping plates is two, and the rotating plate is movably connected between the two clamping plates.

Optionally, one end of the connecting plate a is movably connected with a connecting plate B, and a fixing bolt is arranged on the outer surface of the connecting plate B.

Optionally, the outer surface of the supporting rod a is movably connected with an adjusting bolt a, and the outer surface of the supporting rod B is movably connected with an adjusting bolt B.

(III) advantageous effects

The utility model provides a mathematical geometry projection arrangement possesses following beneficial effect:

1. this mathematics geometry projection arrangement, place the board through having set up, can be used for placing the mathematics geometry, through having set up the cardboard at the surface of backup pad, the rotor plate, connecting plate A, connecting plate B and fixing bolt, can come adjusting connection plate B's length according to the needs of teaching personnel, be convenient for rotate the rotor plate, and then adjust the direction of placing the board, through having set up bracing piece A at the spout, bracing piece B, the jib, adjusting bolt A and adjusting bolt B, can adjust the jib according to the height of the mathematics geometry and the projected angle of teaching needs and carry out the projection with length, can be according to the needs of teaching, come the distance of slider, adjust the angle of the illumination of projection lamp.

2. This mathematical geometry projection arrangement through having set up draw-in groove and baffle, can seal the projection case, has set up the installation pipe through the surface at the jib, can be according to the illumination of the angle of the needs of teaching, will install the inside of installation pipe with the projection lamp, carries out the projection of multi-angle.

Drawings

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

FIG. 2 is a schematic view of the baffle structure of the present invention;

fig. 3 is a schematic view of the boom structure of the present invention.

In the figure: 1. a projection box; 2. a base; 3. a support plate; 4. clamping a plate; 5. a rotating plate; 6. a connecting plate A; 7. a chute; 8. a slider; 9. a support block; 10. a support rod A; 11. a support bar B; 12. a boom; 13. installing a pipe; 14. a projection lamp; 15. placing the plate; 16. a card slot; 17. a baffle plate; 18. a handle; 19. a connecting plate B; 20. fixing the bolt; 21. adjusting the bolt A; 22. and adjusting the bolt B.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a mathematical geometry projection device comprises a projection box 1, wherein the bottom of the projection box 1 is fixedly connected with a base 2, the upper surface of the base 2 is fixedly connected with a supporting plate 3, the upper surface of the supporting plate 3 is fixedly connected with a placing plate 15, the outer surface of the supporting plate 3 is provided with two clamping plates 4 and two rotating plates 5, the two clamping plates 4 are movably connected between the two clamping plates 4, in order to achieve the purpose of adjusting the angle of the placing plate 15, the rotating plates 5 are arranged, the outer surface of the rotating plates 5 is fixedly connected with a connecting plate A6, the length of a connecting plate B19 can be adjusted according to the needs of teaching personnel, the rotating plates 5 can be conveniently rotated, and the direction of the placing plate 15 can be adjusted;

in order to adjust the position of the projection 14 and the like conveniently, a sliding groove 7 is formed in the other side of the projection box 1, a sliding block 8 is movably connected inside the sliding groove 7, a supporting block 9 is fixedly connected to the upper surface of the sliding block 8, a supporting rod A10 is fixedly connected to the upper surface of the supporting block 9, the sliding block 8 moves the supporting rod A10, a supporting rod B11 is movably connected to the upper surface of the supporting rod A10, a hanging rod 12 is movably connected to one end of the supporting rod B11, a mounting pipe 13 is arranged on the outer surface of the hanging rod 12, a projection lamp 14 is movably connected to the bottom of the hanging rod 12, the projection lamp 14 can be mounted inside the mounting pipe 13 according to the illumination of the required angle for;

projection case 1's material is the projection board, draw-in groove 16 has been seted up to one side of projection case 1, the inside swing joint of draw-in groove 16 has baffle 17, the last fixed surface of baffle 17 is connected with handle 18, the one end swing joint of connecting plate A6 has connecting plate B19, the surface of connecting plate B19 is provided with fixing bolt 20, the surface swing joint of bracing piece A10 has adjusting bolt A21, the surface swing joint of bracing piece B11 has adjusting bolt B22, can adjust the height and the length of jib 12 according to the height of the mathematical geometry body and the projected angle of teaching needs and carry out the projection, can be according to the needs of teaching, come the distance of slider 8, adjust the angle of the illumination of projection lamp 14.

To summer up the utility model discloses in, the device's working procedure as follows:

1. placing the mathematical geometry needing to be projected on the placing plate 15, and rotating the rotating plate 5 by holding the connecting plate B19 according to the angle needing to be projected in teaching, so as to adjust the direction of the placing plate 15;

2. the user can operate the fixing bolt 20 according to the length of the arm of the user, and the length of the connecting plate A6 and the connecting plate B19 is adjusted;

3. when projection is carried out, a user can operate the adjusting bolt A21 through the height of the mathematical geometry and the angle required for teaching projection to adjust the height and the length of the suspension rod 12 for projection;

4. the projection lamp 14 can be installed inside the installation tube 13 according to the lighting at the angle required by teaching, so as to perform multi-angle projection.

The 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 utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A mathematical geometry projection apparatus comprising a projection box (1), characterized in that: the bottom of the projection box (1) is fixedly connected with a base (2), the upper surface of the base (2) is fixedly connected with a support plate (3), the outer surface of the support plate (3) is provided with a clamping plate (4) and a rotating plate (5), the outer surface of the rotating plate (5) is fixedly connected with a connecting plate A (6), the other side of the projection box (1) is provided with a chute (7), the inside of the chute (7) is movably connected with a sliding block (8), the upper surface of the sliding block (8) is fixedly connected with a support block (9), the upper surface of the support block (9) is fixedly connected with a support rod A (10), the upper surface of the support rod A (10) is movably connected with a support rod B (11), one end of the support rod B (11) is movably connected with a suspender (12), and the outer surface of the suspender (12, the bottom of the suspender (12) is movably connected with a projection lamp (14), and the upper surface of the supporting plate (3) is fixedly connected with a placing plate (15).

2. A mathematical geometry projection apparatus as claimed in claim 1, wherein: the material of projection case (1) is the projection board, draw-in groove (16) have been seted up to one side of projection case (1).

3. A mathematical geometry projection apparatus as claimed in claim 2, wherein: the inside swing joint of draw-in groove (16) has baffle (17), the upper surface fixed connection of baffle (17) has handle (18).

4. A mathematical geometry projection apparatus as claimed in claim 1, wherein: the number of the clamping plates (4) is two, and the rotating plate (5) is movably connected between the two clamping plates (4).

5. A mathematical geometry projection apparatus as claimed in claim 1, wherein: one end of the connecting plate A (6) is movably connected with a connecting plate B (19), and a fixing bolt (20) is arranged on the outer surface of the connecting plate B (19).

6. A mathematical geometry projection apparatus as claimed in claim 1, wherein: the outer surface of the supporting rod A (10) is movably connected with an adjusting bolt A (21), and the outer surface of the supporting rod B (11) is movably connected with an adjusting bolt B (22).