CN207503511U - A kind of focal length of lens measurement physics teaching aid - Google Patents
A kind of focal length of lens measurement physics teaching aid Download PDFInfo
- Publication number
- CN207503511U CN207503511U CN201720874510.0U CN201720874510U CN207503511U CN 207503511 U CN207503511 U CN 207503511U CN 201720874510 U CN201720874510 U CN 201720874510U CN 207503511 U CN207503511 U CN 207503511U
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- CN
- China
- Prior art keywords
- focal length
- teaching aid
- pedestal
- respectively arranged
- physics teaching
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Abstract
The utility model discloses a kind of focal length of lens measurement physics teaching aid,There is the base groove of rectangle on the upper surface of pedestal,The inner surface of the two side walls of the left part of pedestal has the sliding slot of recess respectively,There is sliding block in sliding slot respectively,Casing is connected between sliding block,Interior bar has been stretched into casing,Parallel light source is connected at the top of interior bar,There is the rach slot of recess on the front side wall of pedestal respectively,There is horizontal rack in rach slot,The right part of rack is connected with plectrum,Being corresponded on the upper side wall of rach slot has the through-hole of strip at plectrum,Plectrum reaches the top of pedestal from through-hole,Axle sleeve is connected at the center of base groove,Wheel shaft has been stretched into axle sleeve,Gear is connected on wheel shaft,Wheel and rack is meshed,The race of fluted formula is distinguished on the upper surface of the right part side wall of base groove,There are two pulleys respectively in race,Pulley is separately mounted to below same bottom plate,The screen of vertical direction is connected with above bottom plate,It facilitates adjusting,Convenient for teaching.
Description
Technical field
The utility model is related to physical teaching aid technical fields, and in particular to a kind of focal length of lens measurement is taught with physics
Tool.
Background technology
At present, it is also more and more extensive to the use of physics teaching aid with the development of educational undertaking.
In existing physics teaching aid, it is difficult to adjust for the optical teaching aid mostly presence of focal length of lens measurement, use is not square
Just the problems such as.
Invention content
The purpose of this utility model is to provide a kind of focal length of lens measurement physics teaching aids, are difficult to adjust with solution,
The problems such as inconvenient to use.
To achieve the above object, the utility model provides a kind of focal length of lens measurement physics teaching aid, including pedestal, bottom
The base groove of rectangle is provided on the upper surface of seat, the inner surface of the two side walls of the left part of pedestal is respectively arranged with recess
Sliding slot is respectively arranged with sliding block in sliding slot, horizontal slide plate is connected between sliding block, longitudinal set is connected at the center of slide plate
It manages, has stretched into interior bar in casing, parallel light source is connected at the top of interior bar, casing screw hole is provided on the side wall of casing, cover
It is respectively arranged with positioning bolt in pipe screw hole, sliding slot screw hole, sliding slot is respectively arranged on the side wall of the base groove at sliding slot
Lower positioning bolt is respectively arranged in screw hole；The rach slot of recess is respectively arranged on the front side wall of pedestal, has horizontal stroke in rach slot
The rack put, the right part of rack are connected with plectrum, the through-hole that strip is provided at plectrum are corresponded on the upper side wall of rach slot,
Plectrum reaches the top of pedestal from through-hole, and axle sleeve is connected at the center of base groove, has stretched into wheel shaft in axle sleeve, on wheel shaft
Gear is connected with, wheel and rack is meshed, and lower fulcrum bar is connected with above gear, is connected under rectangle above lower fulcrum bar
The upper surface of support plate, lower carrier plate are provided with the upper supporting plate of rectangle, and upper rack posts are connected with above upper supporting plate, are connected above upper rack posts
There is a lens supporting ring, four angular positions of upper supporting plate and lower carrier plate are respectively arranged with threaded hole, and tune has been respectively protruding into threaded hole
Save bolt；The race of groove type is respectively arranged on the upper surface of the right part side wall of base groove, two are respectively arranged in race
A pulley, pulley are separately mounted to below same bottom plate, are connected with the screen of vertical direction above bottom plate, before bottom plate
Side and trailing flank are connected respectively with the upper end of fixed plate, and the lower end of fixed plate is respectively arranged with fixing threaded hole, fixing threaded hole
Fixing bolt has inside been respectively protruding into, has corresponded on the front side wall and rear wall of pedestal and is respectively arranged at least at the position of fixing bolt
Two transversely arranged fixing threaded holes.
Optionally, sliding slot is rectangular channel.
Optionally, sliding block is rectangular block.
Optionally, the quantity of sliding slot screw hole is at least two.
Optionally, sliding slot screw hole is uniformly distributed.
Optionally, the quantity of casing screw hole is at least two.
Optionally, casing screw hole is uniformly distributed.
Optionally, casing is cylindrical tube.
Optionally, interior bar is cylindrical bar.
Optionally, upper rack posts and lower fulcrum bar are cylindrical bar.
The utility model has the following advantages that：
The focal length of lens measurement of the utility model physics teaching aid can solve to be difficult to adjust, inconvenient to use etc. to ask
Topic, facilitates adjusting, convenient for teaching.
Description of the drawings
Fig. 1 is the structure diagram of the focal length of lens measurement physics teaching aid of the utility model.
In figure, 1 is pedestal, and 2 be sliding slot, and 3 be sliding block, and 4 be casing, and 5 be interior bar, and 6 be parallel light source, and 7 be upper positioning
Bolt, 8 be lower positioning bolt, and 9 be rack, and 10 be plectrum, and 11 be axle sleeve, and 12 be wheel shaft, and 13 be gear, and 14 be lower fulcrum bar, 15
For lower carrier plate, 16 be upper supporting plate, and 17 be upper rack posts, and 18 be lens supporting ring, and 19 be adjusting bolt, and 20 be race, and 21 be pulley, 22
It is screen for bottom plate, 23,24 be fixed plate, and 25 be fixing bolt, and 26 be fixing threaded hole.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment
A kind of focal length of lens measurement physics teaching aid referring to Fig. 1, including pedestal 1, is provided on the upper surface of pedestal 1
The base groove of rectangle, the inner surface of the two side walls of the left part of pedestal 1 are respectively arranged with the sliding slot 2 of recess, and sliding slot 2 is interior respectively
Sliding block 3 is provided with, horizontal slide plate is connected between sliding block 3, longitudinal casing 4 is connected at the center of slide plate, is stretched in casing 4
Enter to have interior bar 5, the top of interior bar 5 is connected with parallel light source 6, is provided with casing screw hole on the side wall of casing 4, in casing screw hole
It is respectively arranged with positioning bolt 7, is respectively arranged with sliding slot screw hole on the side wall of 1 groove of pedestal at sliding slot 3, in sliding slot screw hole
It is respectively arranged with lower positioning bolt 8；The rach slot of recess is respectively arranged on the front side wall of pedestal 1, is had in rach slot horizontal
Rack 9, the right part of rack 9 are connected with plectrum 10, are corresponded on the upper side wall of rach slot and the logical of strip is provided at plectrum 10
Hole, plectrum 10 reach the top of pedestal 1 from through-hole, and axle sleeve 11 is connected at the center of base groove, has been stretched into axle sleeve 11
Wheel shaft 12 is connected with gear 13 on wheel shaft 12, and gear 13 is meshed with rack 9, and lower fulcrum bar 14 is connected with above gear 13, under
The lower carrier plate 15 of rectangle is connected with above strut 14, the upper supporting plate 16 of rectangle, upper supporting plate 16 are provided with above lower carrier plate 15
Above be connected with upper rack posts 17, be connected with lens supporting ring 18 above upper rack posts 17, four of upper supporting plate 16 and lower carrier plate 15
Angular position is respectively arranged with threaded hole, and adjusting bolt 19 has been respectively protruding into threaded hole；The right part side wall of base groove it is upper
The race 20 of groove type is respectively arranged on surface, two pulleys 21 are respectively arranged in race 20, pulley 21 is separately mounted to
Below same bottom plate 22, the screen 23 of vertical direction, the leading flank of bottom plate 22 and trailing flank are connected with above bottom plate 22
The upper end with fixed plate 24 is connected respectively, and the lower end of fixed plate 24 is respectively arranged with fixing threaded hole, is stretched respectively in fixing threaded hole
Enter to have fixing bolt 25, corresponded on the front side wall and rear wall of pedestal 1 and be respectively arranged at least two at the position of fixing bolt 25
A transversely arranged fixing threaded hole 26.
As it can be seen that the focal length of lens measurement of the present embodiment physics teaching aid, in use, the shifting by sliding block 3 in sliding slot 2
It is dynamic, the front and back position of parallel light source 6 is adjusted, the front and back position of parallel light source 6 is fixed by lower positioning bolt 8, passes through tune
Section interior bar 5 extend into the length in casing 4, adjusts the height of parallel light source 6, and directional light light is fixed by upper positioning bolt 7
The height in source 6；Rack 9 is pulled by plectrum 10 so that rack 9 is rotated with moving gear 13 and wheel shaft 12, to adjust lens supporting ring
The optical axis angle of 18 interior lens, the adjusting bolt 19 of four angular positions by adjusting upper supporting plate 16 and lower carrier plate 17 it is elastic
Degree finely tunes the height of lens and its drift angle of optical axis；By movement of the pulley 21 in race 20, the front and rear of screen 23 is adjusted
Position, by the front and back position of 25 fixed mask 23 of fixing bolt, during source of parallel light 6, lens and screen 23 is adjusted,
Bright-dark degree and its size by imaging on viewing screen 23, the emergent light of parallel light source 6 is adjusted to level
Direction is adjusted the optical axis of lens to horizontal direction, and the longitudinal center line of parallel light source 6 is consistent with lens axis, is being shielded
Curtain 23 on obtain lens institute into most clearly as when, the distance between lens centre and screen 23 for lens focal length.
The focal length of lens measurement of the utility model physics teaching aid, can further include such as lower structure, and sliding slot 2 is
Rectangular channel.Sliding block 3 is rectangular block.The quantity of sliding slot screw hole is at least two.Sliding slot screw hole is uniformly distributed.The quantity of casing screw hole
It is at least two.Casing screw hole is uniformly distributed.Casing 4 is cylindrical tube.Interior bar 5 is cylindrical bar.Upper rack posts 17 and lower fulcrum bar
14 be cylindrical bar.It is evenly spaced apart to be provided with multiple locking screw holes on the side wall of lens supporting ring 18, locking screw holes are interior respectively
It is provided with the clamping screw of locking lens.
It should be noted that the focal length of lens measurement of the utility model physics teaching aid, mainly carries out above structure
It improves, other unmentioned function, component and structures, when needed, may be used can realize corresponding work(in the prior art
The component and structure of energy are implemented.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, the these modifications or improvements on the basis of without departing from the spirit of the present invention, belonging to the utility model will
Seek the range of protection.
Claims (10)
1. a kind of focal length of lens measurement physics teaching aid, including pedestal（1）, which is characterized in that pedestal（1）Upper surface on set
It is equipped with the base groove of rectangle, pedestal（1）The inner surface of two side walls of left part be respectively arranged with the sliding slot of recess（2）, it is sliding
Slot（2）Inside it is respectively arranged with sliding block（3）, sliding block（3）Between be connected with horizontal slide plate, be connected at the center of slide plate longitudinal
Casing（4）, casing（4）Interior bar is inside stretched into（5）, interior bar（5）Top be connected with parallel light source（6）, casing（4）Side wall
On be provided with casing screw hole, be respectively arranged with positioning bolt in casing screw hole（7）, sliding slot（2）The pedestal at place（1）The side of groove
Sliding slot screw hole is respectively arranged on wall, lower positioning bolt is respectively arranged in sliding slot screw hole（8）；Pedestal（1）Front side wall on point
It is not provided with the rach slot of recess, there is horizontal rack in rach slot（9）, rack（9）Right part be connected with plectrum（10）, tooth
Plectrum is corresponded on the upper side wall of bar groove（10）Place is provided with the through-hole of strip, plectrum（10）Pedestal is reached from through-hole（1）'s
Top is connected with axle sleeve at the center of base groove（11）, axle sleeve（11）Wheel shaft is inside stretched into（12）, wheel shaft（12）On be connected with
Gear（13）, gear（13）With rack（9）It is meshed, gear（13）Above be connected with lower fulcrum bar（14）, lower fulcrum bar（14）'s
It is connected with the lower carrier plate of rectangle above（15）, lower carrier plate（15）Above be provided with the upper supporting plate of rectangle（16）, upper supporting plate（16）
Above be connected with upper rack posts（17）, upper rack posts（17）Above be connected with lens supporting ring（18）, upper supporting plate（16）And lower carrier plate
（15）Four angular positions be respectively arranged with threaded hole, be respectively protruding into adjusting bolt in threaded hole（19）；Base groove
The race of groove type is respectively arranged on the upper surface of right part side wall（20）, race（20）Inside it is respectively arranged with two pulleys
（21）, pulley（21）It is separately mounted to same bottom plate（22）Below, bottom plate（22）Above be connected with the screen of vertical direction
Curtain（23）, bottom plate（22）Leading flank and trailing flank respectively with fixed plate（24）Upper end be connected, fixed plate（24）Lower end
Fixing threaded hole is respectively arranged with, fixing bolt has been respectively protruding into fixing threaded hole（25）, pedestal（1）Front side wall and rear wall on
Corresponding fixing bolt（25）Position at be respectively arranged at least two transversely arranged fixing threaded holes（26）.
2. focal length of lens measurement as described in claim 1 physics teaching aid, which is characterized in that sliding slot（2）For rectangular channel.
3. focal length of lens measurement as claimed in claim 2 physics teaching aid, which is characterized in that sliding block（3）For rectangular block.
4. focal length of lens measurement as described in claim 1 physics teaching aid, which is characterized in that the quantity of sliding slot screw hole is extremely
It is two few.
5. focal length of lens measurement as claimed in claim 4 physics teaching aid, which is characterized in that sliding slot screw hole is uniformly distributed.
6. focal length of lens measurement as described in claim 1 physics teaching aid, which is characterized in that the quantity of casing screw hole is extremely
It is two few.
7. focal length of lens measurement as claimed in claim 6 physics teaching aid, which is characterized in that casing screw hole is uniformly distributed.
8. focal length of lens measurement as described in claim 1 physics teaching aid, which is characterized in that casing（4）For cylindrical tube.
9. focal length of lens measurement as claimed in claim 8 physics teaching aid, which is characterized in that interior bar（5）For cylindrical bar.
10. focal length of lens measurement as described in claim 1 physics teaching aid, which is characterized in that upper rack posts（17）With lower branch
Bar（14）It is cylindrical bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874510.0U CN207503511U (en) | 2017-07-19 | 2017-07-19 | A kind of focal length of lens measurement physics teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874510.0U CN207503511U (en) | 2017-07-19 | 2017-07-19 | A kind of focal length of lens measurement physics teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207503511U true CN207503511U (en) | 2018-06-15 |
Family
ID=62497673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720874510.0U Expired - Fee Related CN207503511U (en) | 2017-07-19 | 2017-07-19 | A kind of focal length of lens measurement physics teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207503511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036053A (en) * | 2018-08-29 | 2018-12-18 | 广东海翔教育科技有限公司 | A kind of middle school physics commonly use imaging experiment instructional device |
-
2017
- 2017-07-19 CN CN201720874510.0U patent/CN207503511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036053A (en) * | 2018-08-29 | 2018-12-18 | 广东海翔教育科技有限公司 | A kind of middle school physics commonly use imaging experiment instructional device |
| CN109036053B (en) * | 2018-08-29 | 2021-03-19 | 广东海翔教育科技有限公司 | Imaging experiment teaching device for middle school physics learning |
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| 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: 20180615 Termination date: 20190719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |