CN111554157A

CN111554157A - Higher mathematics rotating surface presentation device

Info

Publication number: CN111554157A
Application number: CN202010376196.XA
Authority: CN
Inventors: 董艳慧
Original assignee: Dezhou Vocational and Technical College
Current assignee: Dezhou Vocational and Technical College
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-08-18

Abstract

The invention relates to a device for demonstrating a rotating curved surface of higher mathematics, which belongs to the technical field of teaching aids and comprises a fixed plate and a drive plate, wherein the drive plate is arranged above the fixed plate and is horizontally arranged, the upper end surface of the fixed plate is fixedly connected with a drive motor for driving the drive plate to rotate, the upper end surface of the drive plate is fixedly connected with a fixed rod, the fixed rod is detachably connected with a sliding rod, the sliding rod is detachably connected with a sliding block, a lamp strip is clamped on the sliding block, the lamp strip is electrically connected with a storage battery, the position of the sliding block can be adjusted randomly within the length range of the sliding rod, the lamp strip is used as a bus of the rotating curved surface, a teacher can set buses with different curvatures according to the actual teaching condition so as to adjust the coordinates of a fixed point of the lamp strip, the lamp strip rotates along with the sliding rod.

Description

Higher mathematics rotating surface presentation device

Technical Field

The invention relates to the technical field of teaching aids, in particular to a device for demonstrating a higher mathematics rotating curved surface.

Background

The rotating curved surface is also called as a revolution surface, and is a special curved surface which is generated by rotating a plane curve around a fixed straight line on a plane where the plane curve is located for one circle, for example, a spherical surface is formed by rotating a circle around the diameter of the circle. In the teaching process, the shape of the curved surface is described through simple language or the figure is directly drawn on a blackboard, so that students can hardly understand the curved surface deeply.

A university's mathematics rotating surface demonstration teaching aid has appeared among the prior art for this reason, for example the chinese patent that publication number is CN110148333A, including supporting the base, the inside of supporting the base is provided with driving motor, driving motor's output is provided with the pivot, the bottom of pivot is provided with and supports the corresponding bearing of base, the top of pivot is provided with demonstration mechanism, demonstration mechanism includes the transfer line, the bottom of transfer line is provided with the first adjusting bolt corresponding with the pivot, the both sides of transfer line are provided with the rotating member, be provided with the second connecting rod corresponding with the rotating member on the transfer line, the rotating member is provided with the head rod with the junction of second connecting rod, the one end of second connecting rod is provided with the second adjusting bolt corresponding with the head rod.

The shape of the rotating member among the prior art is fixed, and the rotating member passes through first connecting rod, second connecting rod and second adjusting bolt fixed connection, can not formulate the rotation curve that accords with the actual condition of giving lessons according to the required condition of giving lessons in reality, and university's mathematics rotating surface demonstrates teaching aid can't use widely on a large scale.

Disclosure of Invention

The invention provides a higher mathematics rotating curved surface demonstration device aiming at the problems in the prior art, which is realized by the following technical scheme:

the utility model provides a higher mathematics rotating surface presentation device, includes fixed plate and drive plate, the drive plate sets up in fixed plate top and both are the level setting, fixed plate up end fixedly connected with drive plate pivoted driving motor, drive plate up end fixedly connected with dead lever, can dismantle on the dead lever and be connected with the slide bar, can dismantle on the slide bar and be connected with the slider, the joint has the lamp area on the slider, lamp area electricity is connected with the battery. The slider is in the arbitrary adjustment position of slide bar length within range, and the generating line of rotating surface is regarded as in the lamp area, and the teacher can set for the generating line of different curvatures according to the condition of giving lessons in fact to the coordinate of adjustment lamp area fixed point, the lamp area is connected with the battery electricity after the lamp area is fixed, opens driving motor, and driving motor drive plate rotates, and the lamp area rotates along with the slide bar.

The invention is further configured to: the slider is seted up the first joint hole of two parallels, the joint hole link up in the slider, the joint hole is on a parallel with the direction of the removal of slider, the downthehole joint of joint has first joint strip of elasticity, first joint strip is the U type, first joint strip both ends fixedly connected with wedge boss, the wedge boss is contradicted with the slider near a joint strip side end face. The lamp area is convenient for fix and dismantle the lamp area through on the first joint strip fixed sliding block of elasticity.

The invention is further configured to: the utility model discloses a slide bar, including the fixed boss of fixedly connected with on the vertical lateral wall of first slide bar, the fixed boss is seted up to the slide bar, the downthehole joint of second joint has elasticity second joint strip. The lamp area joint is avoided the presentation device at the optional equipment in-process on the first slide bar of second joint strip with the lamp area joint, and the lamp area swings at will under the effect of centrifugal force, influences presentation device's demonstration effect.

The invention is further configured to: circular slide rail has been seted up to drive plate lower extreme face, the three support column of fixed plate up end fixedly connected with, the support column up end is contradicted with the slide rail.

The invention is further configured to: first scale marks are marked on the fixed rod, and second scale marks are marked on the sliding rod. The height position of the sliding rod is convenient to adjust through the first scale marks, and the position of the sliding block is convenient to adjust through the second scale marks, so that the lamp strip is fixed.

The invention is further configured to: a transparent protective cover is arranged on the fixed plate, a circular groove is formed in the upper end face of the fixed plate, a bulge matched with the groove is fixedly connected to the lower end face of the protective cover, and the upper end face of the protective cover is higher than the upper end face of the fixed rod; the protective cover covers the outside of driving-disc, avoids the drop departure of presentation device pivoted in-process spare part to cause the injury to teachers and students.

The invention is further configured to: the upper end face of the protective cover is fixedly connected with a first handle; the protective cover is convenient to take and mount through the first handle.

The invention is further configured to: and the circumferential side wall of the fixed plate is fixedly connected with two second handles which are symmetrically arranged along the diameter of the fixed plate. The rotating curved surface demonstration device is convenient to move through the second handle.

In conclusion, the beneficial technical effects of the invention are as follows:

the slider is in the arbitrary adjustment position of slide bar length within range, and the generating line of rotating surface is regarded as in the lamp area, and the teacher can set for the generating line of different curvatures according to the condition of giving lessons in fact to the coordinate of adjustment lamp area fixed point, the lamp area is connected with the battery electricity after the lamp area is fixed, opens driving motor, and driving motor drive plate rotates, and the lamp area rotates along with the drive plate, thereby shows a complete curved surface.

Drawings

FIG. 1 is a schematic view for showing the overall structure of the present embodiment;

FIG. 2 is a sectional view for showing the overall structure of the present example;

FIG. 3 is a schematic view showing the present embodiment with the protective cover removed;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;

fig. 5 is a partially exploded view of the connection of the light strip to the first slider bar.

Reference numerals: 1. a fixing plate; 11. a groove; 12. a second handle; 13. a support pillar; 2. a drive plate; 21. a slide rail; 3. a drive motor; 4. fixing the rod; 41. a first scale mark; 5. a slide bar; 51. a first slide bar; 510. fixing the boss; 511. a second clamping hole; 512. a second clamping strip; 52. a second slide bar; 53. a third slide bar; 54. a second scale mark; 6. a slider; 61. a first clamping hole; 62. a first clamping strip; 63. a wedge-shaped boss; 7. a light strip; 8. a storage battery; 9. a protective cover; 91. a protrusion; 92. a first handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1-5, the device for demonstrating a higher mathematics rotation curved surface disclosed by the invention comprises a fixing plate 1 and a driving plate 2, wherein the driving plate 2 is arranged above the fixing plate 1 and horizontally arranged, the upper end surface of the fixing plate 1 is fixedly connected with a driving motor 3 for driving the driving plate 2 to rotate, the upper end surface of the driving plate 2 is fixedly connected with a fixing rod 4, the fixing rod 4 is detachably connected with a sliding rod 5, the sliding rod 5 is detachably connected with a sliding block 6, the sliding block 6 is clamped with a lamp strip 7, and the lamp strip 7 is electrically connected with a storage battery 8. Slider 6 is in 5 length within range optional adjustment positions of slide bar, and the generating line of rotating surface is regarded as to lamp area 7, and the teacher can set for the generating line of different curvatures according to the actual condition of giving lessons to the coordinate of adjustment lamp area 7 fixed point, the fixed back of accomplishing in lamp area 7, lamp area 7 is connected with battery 8 electricity, opens driving motor 3, and driving motor 3 drive plate 2 rotates, and lamp area 7 rotates along with slide bar 5. The sliding rod 5 is detachably connected with the fixed rod 4 through a bolt (not shown in the figure), and the sliding block 6 is detachably connected with the sliding rod 5 through a bolt (not shown in the figure).

First joint hole 61 of two parallels is seted up to slider 6, and the joint hole link up in slider 6, and the joint hole is on a parallel with the direction of the removal of slider 6, and the joint has first joint strip 62 of elasticity in the first joint hole 61, and first joint strip 62 is the U type, and first joint strip 62 both ends fixedly connected with wedge boss 63, wedge boss 63 are close to a first joint strip 62 side end face and are contradicted with slider 6. The lamp strip 7 is fixed on the sliding block 6 through the first clamping strip 62, so that the lamp strip 7 is fixed and detached conveniently.

Slide 5 includes parallel arrangement's first slide 51, second slide 52 and third slide 53, and fixed boss 510 of fixedly connected with on the vertical lateral wall of first slide 51 has seted up two second joint holes 511 on the fixed boss 510, and the joint has elasticity second joint strip 512 in the second joint hole 511. Second joint strip 512 is with lamp area 7 joint on first slide bar 51, avoids presentation device at the optional dress in-process, and lamp area 7 swings at will under the effect of centrifugal force, influences presentation device's demonstration effect.

Circular slide rail 21 has been seted up to drive plate 2 lower terminal surface, and three support column 13 of fixed plate 1 up end fixedly connected with, support column 13 up end contradict with slide rail 21.

The fixed rod 4 is marked with a first scale mark 41, and the sliding rod 5 is marked with a second scale mark 54. The height position of the sliding rod 5 can be conveniently adjusted through the first scale marks 41, and the position of the sliding block 6 can be conveniently adjusted through the second scale marks 54, so that the lamp strip 7 is fixed.

A transparent protective cover 9 is arranged on the fixed plate 1, a circular groove 11 is formed in the upper end face of the fixed plate 1, a protrusion 91 matched with the groove 11 is fixedly connected to the lower end face of the protective cover 9, and the upper end face of the protective cover 9 is higher than the upper end face of the fixed rod 4; the protective cover 9 covers the outer side of the driving disc, and avoids the falling and flying-out of parts in the rotating process of the demonstration device from causing injury to teachers and students. In order to facilitate taking and mounting of the protective cover 9, a first handle 92 is fixedly connected to the upper end face of the protective cover 9; the protective cover 9 is easily taken and mounted by means of a first handle 92. Two second handles 12 of fixed connection on the fixed plate 1 circumference lateral wall, two second handles 12 set up along fixed plate 1 diameter symmetry, and the setting of second handle 12 is convenient for remove presentation device.

In the embodiment, the sliding rods are the first sliding rod, the second sliding rod and the third sliding rod, and a teacher can determine the number of control points of the rotating bus according to the actual teaching situation to increase the number of the sliding rods, which is not limited to the first sliding rod, the second sliding rod and the third sliding rod described in the embodiment.

Claims

1. The utility model provides a higher mathematics rotating surface presentation device, a serial communication port, including fixed plate (1) and drive plate (2), drive plate (2) set up and are the level setting in fixed plate (1) top and both, fixed plate (1) up end fixedly connected with drive plate (2) pivoted driving motor (3), drive plate (2) up end fixedly connected with dead lever (4), can dismantle on dead lever (4) and be connected with slide bar (5), can dismantle on slide bar (5) and be connected with slider (6), the joint has lamp area (7) on slider (6), lamp area (7) electricity is connected with battery (8).

2. The higher mathematics rotating curved surface presentation device of claim 1, characterized in that, two parallel first joint holes (61) are seted up to slider (6), the joint hole link up in slider (6), the joint hole is on a parallel with the direction of the removal of slider (6), the downthehole joint of joint has first joint strip of elasticity (62), first joint strip (62) are the U type, first joint strip (62) both ends fixedly connected with wedge boss (63), wedge boss (63) are contradicted with slider (6) near a first joint strip (62) side end face.

3. The higher mathematics rotating curved surface presentation device of claim 1, characterized in that, slide bar (5) includes parallel arrangement's first slide bar (51), second slide bar (52) and third slide bar (53), fixedly connected with fixed boss (510) on the vertical lateral wall of first slide bar (51), two second joint holes (511) have been seted up on fixed boss (510), joint has elasticity second joint strip (512) in second joint hole (511).

4. The higher mathematics rotation curved surface demonstration device according to claim 1, characterized in that the lower end surface of said driving plate (2) is equipped with a circular slide rail (21), the upper end surface of said fixing plate (1) is fixedly connected with three supporting columns (13), and the upper end surface of said supporting columns (13) is butted against the slide rail (21).

5. The higher mathematics rotating surface demonstration device according to claim 1, characterized in that said fixed rod (4) is marked with a first scale mark (41), and said sliding rod (5) is marked with a second scale mark (54).

6. The higher mathematics rotating curved surface demonstration device according to claim 1, characterized in that a transparent protective cover (9) is arranged on the fixed plate (1), a circular groove (11) is arranged on the upper end surface of the fixed plate (1), a protrusion (91) matched with the groove (11) is fixedly connected to the lower end surface of the protective cover (9), and the upper end surface of the protective cover (9) is higher than the upper end surface of the fixed rod (4).

7. The higher mathematics surface of revolution demonstration device according to claim 6, characterized in that said protective cover (9) is fixedly connected with a first handle (92) on the upper end surface.

8. The higher mathematics surface of revolution presentation device of claim 7, characterized in that, two second handles (12) are fixedly connected to the circumferential side wall of said fixed plate (1), and two said second handles (12) are symmetrically arranged along the diameter of the fixed plate (1).