CN202013681U - Overweight and weightlessness experimental instrument - Google Patents
Overweight and weightlessness experimental instrument Download PDFInfo
- Publication number
- CN202013681U CN202013681U CN2011201083249U CN201120108324U CN202013681U CN 202013681 U CN202013681 U CN 202013681U CN 2011201083249 U CN2011201083249 U CN 2011201083249U CN 201120108324 U CN201120108324 U CN 201120108324U CN 202013681 U CN202013681 U CN 202013681U
- Authority
- CN
- China
- Prior art keywords
- overweight
- cross bar
- weightlessness
- vertical bars
- base
- 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
Links
Images
Landscapes
- Instructional Devices (AREA)
Abstract
The utility model discloses an overweight and weightlessness experimental instrument, and belongs to the field of physics teaching and experimental instruments. The experimental instrument structurally comprises a base, two vertical bars, and a cross bar; a lifting motor is mounted in the base; the two parallel vertical bars are arranged on two sides of the top of the base; sliding chutes are arranged on the inner sides of the vertical bars, pulleys are arranged at the tops of the sliding chutes, and lifting ropes are wound on the pulleys; the cross bar is arranged between the two vertical bars, and two ends of the cross bar are located in the sliding chutes of the vertical bars and are connected with the lifting motor through the lifting ropes; an electronic scale is arranged in the middle of the cross bar; and a counterweight is hung at the bottom of the electronic scale. Compared with the prior art, the overweight and weightlessness experimental instrument has the advantages of reasonable design, simple structure, easiness in processing, convenience in use, etc., and can visually demonstrate overweight and weightlessness states, so as to obtain a satisfactory class instruction effect.
Description
Technical field
The utility model relates to the physics teaching experiment instrument field, specifically a kind of overweight, weightless test instrument.
Background technology
At present, in the physics teaching in secondary school, when the research object is in overweight, state of weightlessness, mainly be to allow the student recall the variation of the holding power that in the elevator lifting process, is subjected to the where there is light in overweight, state of weightlessness, can not use the variation of data declaration pulling force, holding power, this just allows abstract overweight, weightless more abstract middle school student in the eyes, does not reach satisfied classroom teaching effect.
Summary of the invention
Technical assignment of the present utility model is at above weak point, and a kind of a kind of overweight, weightless test instrument simple in structure, easy to use are provided.
The technical scheme that its technical matters that solves the utility model adopts is: this experimental apparatus comprises base, vertical rod and cross bar, lifting motor is installed in the base, the base top both sides are provided with two vertical rods that are parallel to each other, the inboard of vertical rod has chute, the chute top is provided with pulley, is wound with halliard on the pulley; Be provided with cross bar between two vertical rods, the two ends of cross bar are connected with lifting motor in the chute of vertical rod and by halliard, and the middle part of cross bar is provided with electronic scale, and the bottom of electronic scale hangs with counterweight.
The surface of described electronic scale is provided with display screen.
A kind of overweight, weightless test instrument of the present utility model is compared with prior art, have reasonable in design, simple in structure, be easy to processing, characteristics such as easy to use, can demonstrate out overweight, state of weightlessness intuitively, thereby obtain satisfied classroom teaching effect.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is a kind of structural representation of overweight, weightless test instrument.
Among the figure: 1, base, 2, vertical rod, 3, lifting motor, 4, chute, 5, halliard, 6, pulley, 7, cross bar, 8, electronic scale, 9, display screen, 10, counterweight.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of overweight, weightless test instrument of the present utility model, its structure comprises base 1, vertical rod 2 and cross bar 7, lifting motor 3 is installed in the base 1, both sides, base 1 top are provided with two vertical rods 2 that are parallel to each other, the inboard of vertical rod 2 has chute 4, chute 4 tops are provided with pulley 6, are wound with halliard 5 on the pulley 6; Be provided with cross bar 7 between two vertical rods 2, the two ends of cross bar 7 are connected with lifting motor 3 in the chute 4 of vertical rod 2 and by halliard 5, and the middle part of cross bar 7 is provided with electronic scale 8, and the surface of electronic scale 8 is provided with display screen 9, and the bottom of electronic scale 8 hangs with counterweight 10.
When needs are demonstrated the overweight and state of weightlessness of object, earlier by the weight of electronic scale 8 weighing counterweights 10 when stationary state, start lifting motor 3 then, in counterweight 10 lifting process, just can show the weight change of counterweight 10 when overweight and state of weightlessness on the display screen 9, make the student to understand overweight intuitively and state of weightlessness.
Of the present utility model a kind of overweight, its processing and fabricating of weightless test instrument is very simple and convenient, processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1. overweight, a weightless test instrument comprises base, vertical rod and cross bar, it is characterized in that being equipped with in the base lifting motor, the base top both sides are provided with two vertical rods that are parallel to each other, the inboard of vertical rod has chute, and the chute top is provided with pulley, is wound with halliard on the pulley; Be provided with cross bar between two vertical rods, the two ends of cross bar are connected with lifting motor in the chute of vertical rod and by halliard, and the middle part of cross bar is provided with electronic scale, and the bottom of electronic scale hangs with counterweight.
2. overweight, weightless test instrument according to claim 1 is characterized in that the surface of described electronic scale is provided with display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201083249U CN202013681U (en) | 2011-04-14 | 2011-04-14 | Overweight and weightlessness experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201083249U CN202013681U (en) | 2011-04-14 | 2011-04-14 | Overweight and weightlessness experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013681U true CN202013681U (en) | 2011-10-19 |
Family
ID=44784296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201083249U Expired - Fee Related CN202013681U (en) | 2011-04-14 | 2011-04-14 | Overweight and weightlessness experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013681U (en) |
-
2011
- 2011-04-14 CN CN2011201083249U patent/CN202013681U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202013681U (en) | Overweight and weightlessness experimental instrument | |
| CN206224866U (en) | A kind of Overweight and Zero Gravity apparatus for demonstrating | |
| CN203209080U (en) | Erector for chemical experiment teaching | |
| CN204685138U (en) | A kind of universal experiment table with lifting protective screening | |
| CN201689576U (en) | Physical lever teaching aid | |
| CN203013069U (en) | Demonstrating device for overweight and weightlessness | |
| CN202887544U (en) | Multifunctional mechanics teaching demonstrator | |
| CN204680271U (en) | A kind of lever principle apparatus for demonstrating | |
| CN203070615U (en) | A force parallelogram law demonstrating device used in physics teaching | |
| CN203225039U (en) | A physical dynamic overweight and weightlessness demonstration device | |
| CN201946177U (en) | Multifunctional lever demonstration device for physical experiment | |
| CN204788863U (en) | Single cable vibration testing device | |
| CN102622933A (en) | Soap film interference demonstration instrument | |
| CN202720803U (en) | A lever teaching aid used for physics teaching | |
| CN204759843U (en) | Physical demonstration instructional device | |
| CN220438107U (en) | Whole car illumination ageing experiment device of simulation sunlight | |
| CN202018761U (en) | Digitized crowbar principle teaching aid | |
| CN203468126U (en) | Display rack for economics teaching | |
| CN202563768U (en) | Physical teaching appliance | |
| CN204791680U (en) | Physics teaching demonstration apparatus | |
| CN204904654U (en) | Hooke law demonstrates appearance | |
| CN202650349U (en) | Pulley block used in physics teaching | |
| CN202443655U (en) | Cylindrical film interference test instrument | |
| CN2879215Y (en) | Simple seismograph | |
| CN205679477U (en) | A kind of spring elongation experimental rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20120414 |