CN207233261U - A kind of mathematics teaching aid for demonstrating surface of revolution - Google Patents
A kind of mathematics teaching aid for demonstrating surface of revolution Download PDFInfo
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- CN207233261U CN207233261U CN201720811474.3U CN201720811474U CN207233261U CN 207233261 U CN207233261 U CN 207233261U CN 201720811474 U CN201720811474 U CN 201720811474U CN 207233261 U CN207233261 U CN 207233261U
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Abstract
A kind of mathematics teaching aid for demonstrating surface of revolution, including bottom plate, transparent panel is disposed with bottom plate from left to right, installing plate and mounting box, driving motor is provided with mounting box, installing plate top is provided with bearing block, the shaft of left and right horizontal setting is rotatably connected in bearing block by bearing, shaft right end is coaxially connected with driven pulley, the main shaft of driving motor is coaxially connected with driving pulley, driving pulley is sequentially connected by belt and driven pulley, shaft left end is connected with the mounting cylinder of closing, there are two thread bush on center symmetric setting on the left of mounting cylinder, a metal stereotypes hoses are threaded with each thread bush, metal stereotypes hoses external coating has fluorescent paint.The utility model is simple in structure, easy to operation, can be bent into any shape and carry out rotating display, demonstration is vivid, can play a multiplier effect when explaining surface of revolution course.
Description
Technical field
The utility model belongs to teaching aid technical field, and in particular to a kind of mathematics teaching aid for demonstrating surface of revolution.
Background technology
Surface of revolution（Formed curved surface is rotated a circle rotation song with straight line of the plane curve in its plane
Face, rotating curve and boning out are called the busbar and axis of surface of revolution successively）It is more complicated in University Space analytic geometry
A part, because without the demonstration model for teaching of image, it is difficult to fully understand, this brings teaching process very big difficulty.It is existing
Technology is in the teaching for carrying out surface of revolution, and when explaining the generating process of surface of revolution, instructors often draw one on blackboard
Bar straight line and a curve carry out explanation in word respectively as rotation axis and busbar, and such explanation is not neither lively again straight
See, also can not transfer the interest of student.If the mathematics teaching aid of surface of revolution, along with the lively explanation of instructors, then
Teaching can get twice the result with half the effort.
Utility model content
The utility model is in order to solve shortcoming of the prior art, there is provided it is a kind of it is simple in structure, difference can be demonstrated
The generating process of the surface of revolution of shape, good demonstration effect, lifting surface of revolution give lessons effect demonstration surface of revolution mathematics
Teaching aid.
In order to solve the above technical problems, the utility model adopts the following technical solution：A kind of mathematics for demonstrating surface of revolution
Teaching aid, including bottom plate, are disposed with transparent panel, installing plate and mounting box on bottom plate, are provided with mounting box from left to right
One rechargeable battery, is provided with the driving motor being connected with the first rechargeable battery on mounting box, keying is provided with mounting box
The first button switch of motor and the first charging socket for the charging of the first rechargeable battery are driven, installing plate top is provided with a left side
Right penetrating mounting hole, is provided with bearing block, the mounting disc being provided with the outside of bearing block on the right side of installing plate, peace in mounting hole
Sabot is connected by the first screw with installing plate, is rotatably connected to the shaft of left and right horizontal setting in bearing block by bearing, is turned
Axis right end is coaxially connected with driven pulley, drives the main shaft of motor to be coaxially connected with driving pulley, driving pulley by belt with
Driven pulley is sequentially connected,
Shaft left end is coaxially connected with the mounting cylinder of closing by terminal pad and the second screw, and second is provided with mounting cylinder
There are two thread bush in rechargeable battery, mounting cylinder left side on center symmetric setting, one are threaded with each thread bush
Root metal stereotypes hoses, metal stereotypes hoses external coating have fluorescent paint, the left part of metal stereotypes hoses and cylindrical weekly form
Face is both provided with LED laser lamp, and a power supply being connected with the second rechargeable battery is equipped with every metal stereotypes hoses
Line, the second button switch set on mounting cylinder is connected with every supply lines, is provided with mounting cylinder for that can be filled for second
Second charging socket of battery charging；
Transparent plate surface is vertically arranged along the longitudinal direction, is provided with shutter on the right side of transparent panel, shutter and transparent panel it
Between connected by U-shaped card.
The first mounting groove and the second mounting groove are offered on bottom plate along the longitudinal direction, installing plate lower end is plugged in the first installation
In groove, horizontally disposed the first connecting plate having with contacts baseplate, passes through the 3rd between the first connecting plate and bottom plate on the left of installing plate
Screw connects, and the first gusset is set between the first connecting plate upper surface on the left of installing plate；
Transparent panel lower end is plugged in the second mounting groove, and transparent panel right side is horizontally disposed with to have to be connected with the second of contacts baseplate
Plate, is connected between the second connecting plate and bottom plate by the 4th screw, is set on the right side of transparent panel between the second connecting plate upper surface
Second gusset.
Using above-mentioned technical proposal, the utility model removes U-shaped card in teaching demonstration, and shutter is taken down, then by gold
Belong to stereotypes hoses and be converted into arbitrary shape, then press the second button switch, the LED laser lamp in metal stereotypes hoses is lighted, then
Press the first button switch, drive electric motor starting, driving motor is rotated by driving pulley, driving pulley by belt drive from
Movable belt pulley rotates, and driven pulley drives shaft to rotate, and shaft, which rotates, drives mounting cylinder and two metal stereotypes hoses to rotate, student
Observe that metal stereotypes hoses rotate to form surface of revolution by transparent panel, the fluorescent paint on metal stereotypes hoses surface can protrude
Show the shape of surface of revolution.Shutter is placed on the right side of transparent panel and is fixed shutter using U-shaped card, metal sizing
Hose rotates, and a circle, teacher are formed in the bright light exposure that each LED laser lamp in metal stereotypes hoses is sent to shutter
Each point on surface of revolution can be told about to classmates when being rotated around boning out, the rotational trajectory each put is circle
Shape.In addition, in demonstration, when shaft rotating speed is higher, the left end of two metal stereotypes hoses can swing or rock, and it is fixed to can be used
Type stone dead wire connects the left end of two metal stereotypes hoses, so as to improve the effect of demonstration.
Dismountable connection mode is used between all parts of the utility model, there is good reliability, and
Easy to manufacture, install and repair.
In conclusion the utility model is simple in structure, and it is easy to operation, any shape can be bent into and carry out rotating display,
Demonstrate vivid, can play a multiplier effect when explaining surface of revolution course.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
As shown in Figure 1, a kind of mathematics teaching aid of demonstration surface of revolution of the utility model, including bottom plate 1, on bottom plate 1 by
From left to right is disposed with transparent panel 2, installing plate 3 and mounting box 4, and the first rechargeable battery, mounting box are provided with mounting box 4
The driving motor 6 being connected with the first rechargeable battery is provided with 4, be provided with mounting box 4 open and close driving motor 6 first by
Button switch 7 and the first charging socket 8 for the charging of the first rechargeable battery, 3 top of installing plate is provided with the penetrating installation in left and right
Hole, bearing block 9 is provided with mounting hole, and the outside of bearing block 9 is provided with the mounting disc 10 positioned at the right side of installing plate 3, mounting disc 10
It is connected by the first screw 11 with installing plate 3, is rotatably connected to the shaft 12 of left and right horizontal setting in bearing block 9 by bearing,
12 right end of shaft is coaxially connected with driven pulley 13, and the main shaft of driving motor 6 is coaxially connected with driving pulley 14, driving pulley 14
It is sequentially connected by belt 15 and driven pulley 13,
12 left end of shaft is coaxially connected with the mounting cylinder 18 of closing by 16 and second screw 17 of terminal pad, in mounting cylinder 18
The second rechargeable battery is provided with, there are two thread bush 20, each thread bush 20 in the left side of mounting cylinder 18 on center symmetric setting
A metal stereotypes hoses 21 are inside threaded with, 21 external coating of metal stereotypes hoses has fluorescent paint, metal stereotypes hoses
21 left part and external peripheral surface are both provided with LED laser lamp 22, and one is equipped with every metal stereotypes hoses 21
The supply lines being connected with the second rechargeable battery, the second button switch set on mounting cylinder 18 is connected with every supply lines
23, the second charging socket 24 for charging for the second rechargeable battery is provided with mounting cylinder 18；
2 surface of transparent panel is vertically arranged along the longitudinal direction, and the right side of transparent panel 2 is provided with shutter 25, shutter 25 with thoroughly
Connected between isotropic disk 2 by U-shaped card 26.
The first mounting groove and the second mounting groove are offered on bottom plate 1 along the longitudinal direction, 3 lower end of installing plate is plugged in the first peace
In tankage, the left side of installing plate 3 is horizontally disposed the first connecting plate 27 contacted with bottom plate 1, between the first connecting plate 27 and bottom plate 1
Connected by the 3rd screw 28, the first gusset 29 is set between the left side of installing plate 3 and 27 upper surface of the first connecting plate；
2 lower end of transparent panel is plugged in the second mounting groove, and the right side of transparent panel 2 is horizontally disposed second contacted with bottom plate 1
Connecting plate 30, is connected between the second connecting plate 30 and bottom plate 1 by the 4th screw 31, the right side of transparent panel 2 and the second connecting plate 30
Second gusset 32 is set between upper surface.
The utility model removes U-shaped card 26 in teaching demonstration, and shutter 25 is taken down, then by metal stereotypes hoses 21
Arbitrary shape is converted into, then presses the second button switch 23, the LED laser lamp 22 in metal stereotypes hoses 21 is lighted, and is then pressed
First button switch 7, driving motor 6 start, and driving motor 6 is rotated by driving pulley 14, and driving pulley 14 passes through belt 15
Driven pulley 13 is driven to rotate, driven pulley 13 drives shaft 12 to rotate, and shaft 12, which rotates, drives mounting cylinder 18 and two metals
Stereotypes hoses 21 rotate, and students observe that the rotation of metal stereotypes hoses 21 forms surface of revolution, metal sizing by transparent panel 2
The fluorescent paint on 21 surface of hose can highlight out the shape of surface of revolution.Shutter 25 is placed into the right side of transparent panel 2 and is made
Shutter 25 is fixed with U-shaped card 26, metal stereotypes hoses 21 rotate, each LED laser lamp 22 in metal stereotypes hoses 21
To one circle of formation on shutter 25, each point that teacher can be told about to classmates on surface of revolution exists the bright light exposure sent
When being rotated around boning out, the rotational trajectory each put is circle.In addition, in demonstration, when 12 rotating speed of shaft is higher, two
The left end of root metal stereotypes hoses 21 can swing or rock, and sizing stone dead wire can be used by the left end of two metal stereotypes hoses 21
Connection, so as to improve the effect of demonstration.
Dismountable connection mode is used between all parts of the utility model, there is good reliability, and
Easy to manufacture, install and repair.
Limitation of the present embodiment not to works such as the shape of the utility model, material, structures in any form, every foundation
Any simple modification, equivalent change and modification that the technical essence of the utility model makees above example, belongs to this reality
With the protection domain of new technique scheme.
Claims (2)
- A kind of 1. mathematics teaching aid for demonstrating surface of revolution, it is characterised in that：Including bottom plate, it is disposed with from left to right on bottom plate Transparent panel, installing plate and mounting box, are provided with the first rechargeable battery in mounting box, be provided with mounting box with it is first chargeable The driving motor of battery connection, the first button switch for opening and closing driving motor is provided with mounting box and is the first rechargeable battery First charging socket of charging, installing plate top is provided with the penetrating mounting hole in left and right, bearing block, bearing is provided with mounting hole Seat outside is provided with the mounting disc on the right side of installing plate, and mounting disc is connected by the first screw with installing plate, is led in bearing block The shaft that bearing is rotatably connected to left and right horizontal setting is crossed, shaft right end is coaxially connected with driven pulley, drives the main shaft of motor Driving pulley is coaxially connected with, driving pulley is sequentially connected by belt and driven pulley,Shaft left end is coaxially connected with the mounting cylinder of closing by terminal pad and the second screw, and second is provided with mounting cylinder to fill There are two thread bush in battery, mounting cylinder left side on center symmetric setting, a gold are threaded with each thread bush Belong to stereotypes hoses, metal stereotypes hoses external coating has fluorescent paint, and the left part of metal stereotypes hoses and external peripheral surface are equal LED laser lamp is provided with, a supply lines being connected with the second rechargeable battery is equipped with every metal stereotypes hoses, often The second button switch set on mounting cylinder is connected with root supply lines, is provided with mounting cylinder for being the second rechargeable battery Second charging socket of charging；Transparent plate surface is vertically arranged along the longitudinal direction, and shutter is provided with the right side of transparent panel, is led between shutter and transparent panel Cross U-shaped card connection.
- A kind of 2. mathematics teaching aid for demonstrating surface of revolution according to claim 1, it is characterised in that：Along front and back on bottom plate To the first mounting groove and the second mounting groove is offered, installing plate lower end is plugged in the first mounting groove, and level is set on the left of installing plate Be equipped with the first connecting plate with contacts baseplate, connected between the first connecting plate and bottom plate by the 3rd screw, on the left of installing plate with The first gusset is set between first connecting plate upper surface；Transparent panel lower end is plugged in the second mounting groove, horizontally disposed the second connecting plate having with contacts baseplate on the right side of transparent panel, Connected between second connecting plate and bottom plate by the 4th screw, second is set between the second connecting plate upper surface on the right side of transparent panel Gusset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720811474.3U CN207233261U (en) | 2017-07-06 | 2017-07-06 | A kind of mathematics teaching aid for demonstrating surface of revolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720811474.3U CN207233261U (en) | 2017-07-06 | 2017-07-06 | A kind of mathematics teaching aid for demonstrating surface of revolution |
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| Publication Number | Publication Date |
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| CN207233261U true CN207233261U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720811474.3U Active CN207233261U (en) | 2017-07-06 | 2017-07-06 | A kind of mathematics teaching aid for demonstrating surface of revolution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599869A (en) * | 2019-10-08 | 2019-12-20 | 郑州航空工业管理学院 | Higher mathematics rotating surface presentation device |
-
2017
- 2017-07-06 CN CN201720811474.3U patent/CN207233261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599869A (en) * | 2019-10-08 | 2019-12-20 | 郑州航空工业管理学院 | Higher mathematics rotating surface presentation device |
| CN110599869B (en) * | 2019-10-08 | 2021-04-30 | 郑州航空工业管理学院 | Higher mathematics rotating surface presentation device |
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