CN203503233U - Twilight demonstrator - Google Patents

Twilight demonstrator Download PDF

Info

Publication number
CN203503233U
CN203503233U CN201320409934.1U CN201320409934U CN203503233U CN 203503233 U CN203503233 U CN 203503233U CN 201320409934 U CN201320409934 U CN 201320409934U CN 203503233 U CN203503233 U CN 203503233U
Authority
CN
China
Prior art keywords
fixed
stepping motor
stepper motor
sphere
sun
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320409934.1U
Other languages
Chinese (zh)
Inventor
黄凤梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201320409934.1U priority Critical patent/CN203503233U/en
Application granted granted Critical
Publication of CN203503233U publication Critical patent/CN203503233U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Instructional Devices (AREA)

Abstract

The utility model relates to a twilight demonstrator, comprising a base 1, a stepping motor I fixed to the base 1, a support arm fixed to the output shaft of the stepping motor I, a stepping motor II slantly fixed to the rear end of the support arm, an earth sphere fixed to the output shaft of the stepping motor II and a sun sphere arranged above the stepping motor I; a solar term dial is fixed under the sun sphere; the earth sphere is fixedly provided with a pointer used for pointing solar terms. The stepping motor I drives the support arm to rotate in the circumferential direction, and thereby the earth sphere can revolute surrounding the sun sphere, and the stepping motor II drives the earth sphere to rotate; the matching between a revolution speed and a rotation speed can be realized through the rotating speeds of the stepping motor I and the stepping motor II. The twilight demonstrator has the characteristics of simple structure and long service life.

Description

A kind of Instrument for surveying solar time and azimuth
Technical field
The utility model relates to a kind of geography class teaching aid, is specifically related to a kind of Instrument for surveying solar time and azimuth.
Background technology
As everyone knows, Instrument for surveying solar time and azimuth be geography class teacher for demonstrate the earth round the clock, a kind of instruments used for education of Four seasons change.But existing Instrument for surveying solar time and azimuth earth rotation and the earth enclose that to revolve around the sun be all to adopt gear structure transmission, its complex structure, easily damages in use procedure.
Summary of the invention
The utility model, in order to overcome the deficiency of above technology, provides a kind of simple in structure, service-strong Instrument for surveying solar time and azimuth
The utility model overcomes the technical scheme that its technical matters adopts:
This Instrument for surveying solar time and azimuth, comprise base, be fixed on stepper motor I on base 1, be fixed on sway brace on stepper motor I output shaft, tilt to be fixed on the stepper motor II on sway brace end, the sun spheroid that is fixed on the ground ball on stepper motor II output shaft and is arranged at stepper motor I top, described sun spheroid below is fixed with solar term index dial, is fixed with the pointer that is used to indicate solar term on described ground ball.
Also comprise the camera and the VGA video output terminal that are fixed on sun spheroid top, described camera, VGA video output terminal are all connected in single-chip microcomputer.
The beneficial effects of the utility model are: stepper motor I drives sway brace circumferencial direction to rotate, thereby ground ball can revolve round the sun around sun spheroid, stepper motor II drives ground ball rotation, and by the rotating speed of stepper motor I and stepper motor II, can realize the coupling of revolution, rotational velocity.This Instrument for surveying solar time and azimuth is simple in structure, long service life.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is control system theory diagram of the present utility model;
In figure, 1. base 2. stepper motor I3. solar term index dial 4. sun spheroid 5. camera 6. pointer 7. ground ball 8. stepper motor II9. sway braces.
Embodiment
Below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing, be described further.
This Instrument for surveying solar time and azimuth, comprise base 1, be fixed on stepper motor I2 on base 1, be fixed on sway brace 9 on stepper motor I2 output shaft, tilt to be fixed on the stepper motor II8 on sway brace 9 ends, the sun spheroid 4 that is fixed on the ground ball 7 on stepper motor II8 output shaft and is arranged at stepper motor I2 top, described sun spheroid 4 belows are fixed with solar term index dial 3, are fixed with the pointer 6 that is used to indicate solar term on described ground ball 7.Stepper motor I2 drives sway brace 9 circumferencial directions to rotate, thereby ground ball 7 can be around 4 revolution of sun spheroid, stepper motor II8 drives ground ball 7 rotations, and by the rotating speed of stepper motor I2 and stepper motor II8, can realize the coupling of revolution, rotational velocity.This Instrument for surveying solar time and azimuth is simple in structure, long service life.
Because Instrument for surveying solar time and azimuth is less, rear row's student cannot see Instrument for surveying solar time and azimuth demonstration clearly and in the classroom of school, projector or large-screen receiver is installed now, therefore can also comprise camera 5 and the VGA video output terminal that is fixed on sun spheroid 4 tops, described camera 5, VGA video output terminal are all connected in single-chip microcomputer.Projector and big screen panel TV can be connected in VGA video output terminal by VGA line, true this Instrument for surveying solar time and azimuth running picture of taking of Single-chip Controlling camera 5, and by projector or television for play, facilitate student to examine Instrument for surveying solar time and azimuth, quality of instruction is improved.

Claims (2)

1. an Instrument for surveying solar time and azimuth, it is characterized in that: comprise base (1), be fixed on stepper motor I (2) on base (1), be fixed on sway brace (9) on stepper motor I (2) output shaft, tilt to be fixed on the stepper motor II (8) on sway brace (9) end, the sun spheroid (4) that is fixed on the ground ball (7) on stepper motor II (8) output shaft and is arranged at stepper motor I (2) top, described sun spheroid (4) below is fixed with solar term index dial (3), is fixed with the pointer (6) that is used to indicate solar term on described ground ball (7).
2. Instrument for surveying solar time and azimuth according to claim 1, is characterized in that: also comprise the camera (5) and the VGA video output terminal that are fixed on sun spheroid (4) top, described camera (5), VGA video output terminal are all connected in single-chip microcomputer.
CN201320409934.1U 2013-07-10 2013-07-10 Twilight demonstrator Expired - Fee Related CN203503233U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320409934.1U CN203503233U (en) 2013-07-10 2013-07-10 Twilight demonstrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320409934.1U CN203503233U (en) 2013-07-10 2013-07-10 Twilight demonstrator

Publications (1)

Publication Number Publication Date
CN203503233U true CN203503233U (en) 2014-03-26

Family

ID=50334193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320409934.1U Expired - Fee Related CN203503233U (en) 2013-07-10 2013-07-10 Twilight demonstrator

Country Status (1)

Country Link
CN (1) CN203503233U (en)

Similar Documents

Publication Publication Date Title
CN202258109U (en) Photoelectric armillary sphere
CN203038559U (en) An operation demonstrating instrument of the sun, the earth, and the moon
CN204143761U (en) A kind of celestial body apparent motion demonstrator
CN203503233U (en) Twilight demonstrator
CN213935398U (en) Teaching demonstration globe
CN202838809U (en) Earth rotation and revolution demonstrating device for geographical teaching
CN214475991U (en) Multifunctional globe
CN206649817U (en) A kind of geography teaching model
CN206672379U (en) A kind of English Writing model essay exhibiting device
CN106895941B (en) A kind of Beidou wind detection device
CN1385819A (en) Chinese type earth function demonstration instrument
CN104992592B (en) A kind of gyroscope apparent motion apparatus for demonstrating
CN204808667U (en) Gyroscope apparent motion presentation device
CN201041707Y (en) A celestial body operation demonstration system
CN204904715U (en) Swing type shows globe round clock
CN204904714U (en) A lunarium for demonstrating moon rotation and revolution
CN220105899U (en) Daily and earth operation demonstration instrument
CN214587673U (en) Teaching demonstration device for revolution of earth
CN204010525U (en) Show electric globe round the clock
CN208938513U (en) A kind of revolution of the earth and rotation demonstration teaching aid
CN201138533Y (en) Principle demonstrator for sundial
CN211699497U (en) Practical multifunctional astronomical globe device
CN203465890U (en) Lunar phase change demonstration instrument
CN201054212Y (en) Moon phase instrument
CN207008956U (en) A kind of Novel tellurian

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20140710

EXPY Termination of patent right or utility model