CN109192027A - A kind of optical physics teaching lens focusing experiment teaching aid - Google Patents
A kind of optical physics teaching lens focusing experiment teaching aid Download PDFInfo
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- CN109192027A CN109192027A CN201811248401.3A CN201811248401A CN109192027A CN 109192027 A CN109192027 A CN 109192027A CN 201811248401 A CN201811248401 A CN 201811248401A CN 109192027 A CN109192027 A CN 109192027A
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The invention belongs to Physical Experiment fixture technology fields, specifically a kind of optical physics teaching lens focusing experiment teaching aid, lens installing support includes the pedestal being slidably connected with linear guide, the piston cylinder being perpendicularly fixed on pedestal, piston rod compatible with piston cylinder, the lens for being installed on piston rod upper end, be adhered to two of piston cylinder lower end outer wall air bags semi-elastic, and the roll that is rotatablely connected vertical with piston cylinder inner wall, bracing wire, the nylon adhesion being arranged on air bag inner wall and piston drum outer wall semi-elastic are buckled, and string holes is provided on piston cylinder；Air bag semi-elastic is arranged symmetrically on piston cylinder, and air bag semi-elastic will push piston rod and move up after being compressed moves up lens；The present invention increases the air pressure in piston cylinder, by compressing air bag semi-elastic by compressing air bag semi-elastic, increase the air pressure in piston cylinder, so that piston rod moves upwards drive lens rising, when being in different height for demonstrating lens, influence to imaging, to improve teaching efficiency.
Description
Technical field
The invention belongs to Physical Experiment fixture technology field, specifically a kind of optical physics teaching lens are assembled real
Test teaching aid.
Background technique
In Middle School Physics teaching material, the experiment of opticator has more than 20 kinds, and in education activities, teacher imparts knowledge to students to improve
Quality more intuitively teaches the content of courses, when usually giving lessons, explanation is tested and cooperated using on-the-spot demonstration, teaches and knows to student
Know, still, since the optical element in Experiments of Optics is expensive, in order to guarantee to ensure that optical element is not damaged, at present
Most of Experiments of Optics utensil be all use break preservations, thus in Experiments of Optics, require faculty and spend largely
Time carry out installation Experiments of Optics element, then by manually adjusting the distance between light source, lens, focusing board three,
This installation and adjustment process is cumbersome, also wastes time, and it is difficult to ensure that light source, lens, focusing board three same
On straight line, once light source, lens, the position between focusing board three shift, experimental result inaccuracy will lead to.
Patent document 1: a kind of device for Optical-Physics Experiment, application number 2013208632941
In above patent document 1, the optical lens mounting bracket includes that pedestal and the pedestal pass through hinges
The bracket and eyeglass mounting rack of connection, the bracket is interior to be equipped with the accommodating cavity for placing eyeglass mounting rack, the eyeglass installation
Frame extension type is arranged on the bracket.
The patent document is although simple, convenient to be carried, it can be achieved that saving to lens integral type, but adjusting optics
There is defect, the height adjustment for adjusting optical lens mounting bracket is not realized significantly in the height of lens installing support entirety
The mechanism of its precision, so that the height of lens has deviation, to make light source, lens, focusing board three after replacing different eyeglasses
Between position shift, seriously affect the accuracy of experimental result.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of optical physics teaching proposed by the present invention is taught with lens focusing experiment
Tool, it is an object of the invention to solve the problems, such as to adjust lens installing support height adjustment inaccuracy.
The technical solution adopted by the present invention to solve the technical problems is: a kind of optical physics teaching use of the present invention
Lens focusing experiment teaching aid, including bottom plate, the linear guide being fixedly mounted on bottom plate, light source base, projection plate mounting bracket,
At least one lens installing support, the light source base, projection plate mounting bracket, lens installing support respectively can be relatively described
The mobile setting of linear guide is in the linear guide；The lens installing support includes the seat being slidably connected with linear guide
Body, piston rod compatible with piston cylinder, the lens for being installed on piston rod upper end, glues the piston cylinder being perpendicularly fixed on pedestal
Be connected to two of piston cylinder lower end outer wall air bags semi-elastic, it is vertical with piston cylinder inner wall and be rotatablely connected roll, bracing wire, cloth
The nylon adhesion set on air bag inner wall semi-elastic and piston drum outer wall is buckled, and is provided with string holes on the piston cylinder；The drawing
One end of line is connect with the tip inner wall of air bag semi-elastic, and the other end of bracing wire string holes and is wrapped on roll with passing through；Institute
The one end for stating roll is pierced by piston cylinder, and the roll end for being pierced by piston cylinder is provided with handle；The air bag semi-elastic exists
It is arranged symmetrically on piston cylinder, air bag semi-elastic will push piston rod and move up after being compressed moves up lens.When work, as teaching people
Member selects the quantity of the lens needed in use, experimental content；The height of lens installing support is adjusted in faculty
When, the elemental height of lens installing support is located at lower, and the manual rotational handle of faculty makes roll winding bracing wire and pulls
Air bag semi-elastic, two air bags semi-elastic are compressed, and adhesion is buckled by nylon adhesion in the compressed position of air bag semi-elastic, to prevent
Only air-pocket reset semi-elastic, the gas in air bag semi-elastic are pressed into piston cylinder, are increased the air pressure in piston cylinder, are made
Piston rod moves upwards drive lens is driven to rise, when being in different height for demonstrating lens, influence to imaging, favorably
In students lens image formation rule, teaching efficiency is improved；After the completion of experiment, by manual grip air bag semi-elastic, by Buddhist nun
Imperial adhesion button is torn, and is made air-pocket reset semi-elastic, is resetted roll, and air pressure reduces in piston cylinder piston cylinder, and piston rod drives
Lens decline resets, to use next time.
Spiral winding wire casing is provided on the two end axles curved surface of the roll.When work, axis of the bracing wire from roll
Face upper end is wrapped on spiral winding wire casing, another bracing wire is wrapped on spiral winding wire casing from the axial plane lower end of roll；One side
Face, spiral winding wire casing can prevent guy winding from knotting together and make bracing wire turmoil；On the other hand, spiral winding wire casing can make to draw
Line is located at predetermined position, avoids bracing wire from sliding on roll and influences the accuracy that bracing wire pulls air bag semi-elastic, to mention
The accuracy that high air bag semi-elastic supplies piston cylinder, improves the accuracy of piston rod mobile lens, so that imaging effect is more preferable.
The piston cylinder is provided with sliding slot one by the position that air bag semi-elastic covers；Arc is provided in the sliding slot one to lead
Plate；The arc-shaped guide plate is pressed against bracing wire when air bag semi-elastic is extruded, and is wound bracing wire by the trend of spiral winding wire casing.Work
When making, arc-shaped guide plate is pressed against bracing wire, makes the entrance spiral winding wire casing that bracing wire is easier, bracing wire is made to be adapted to spiral winding wire casing
Trend, be conducive to improve line pull the accuracy of air bag semi-elastic, to improve the standard that air bag semi-elastic supplies piston cylinder
True property improves the position precision of piston rod mobile lens, is conducive to improve imaging effect.
One end that the arc-shaped guide plate supports bracing wire is provided with roller；The roller and arc-shaped guide plate are rotatablely connected, roller
Cable clamping interface is provided on the curved surface of middle part.When work, bracing wire is slided on arc-shaped guide plate, is easy to produce abrasion, for a long time in this way, holding
Easily it is broken bracing wire, meanwhile, bracing wire is slided on arc-shaped guide plate, also arc-shaped guide plate end can be made to be worn and occur multiple
Pit, on the one hand, pit increases the resistance of bracing wire sliding, on the other hand, and with the increase of pit, the angle that bracing wire can be made tight
Degree changes, so that the circle number of roll rotation is influenced, the circle number of the height and roll that rise by piston rod mobile lens
Related, therefore, pit will change the relationship between the height and roll turnning circle that lens rise, so that the height that lens rise
Degree inaccuracy；Therefore, it is provided with the roller of cable clamping interface in arc-shaped guide plate end, on the one hand reduces the degree of wear of bracing wire, mentions
The service life of high bracing wire；On the other hand, it ensure that the linear relationship between the height and roll turnning circle of lens rising,
The position precision for improving piston rod mobile lens is conducive to faculty and quickly adjusts experiment teaching aid, improve conventional efficient and
Accuracy；Meanwhile cable clamping interface can avoid or reduce bracing wire sliding, and bracing wire influence official is avoided to learn the mobile precision risen of eyeglass.
The arc-shaped guide plate is hollow pipe, and arc-shaped guide plate is connected to air bag and piston cylinder semi-elastic.When work, air bag semi-elastic
It is compressed, the portion gas in air bag semi-elastic is entered in piston cylinder by arc-shaped guide plate, and gas can be blown in roller and bracing wire
On；On the one hand, the onal that bracing wire wearing by the gas of arc-shaped guide plate blowout can occur hangs, and reduces the possibility of bracing wire sliding；Separately
On the one hand, bracing wire slided on roller can frictional heat generation, the heat of generation can make bracing wire be easy aging, and what arc-shaped guide plate was blown out
Gas can blow away the heat generated between bracing wire and roller, be conducive to bracing wire and the heat dissipation of roller, improve bracing wire and roller
Service life, to improve the service life of entire experiment teaching aid.
Graphite bar is evenly equipped on the slot inner wall of the sliding slot one；The arc-shaped guide plate and graphite bar sliding contact.When work,
Arc-shaped guide plate slides in graphite bar, on the one hand, graphite bar has lubricating action to arc-shaped guide plate, reduces the mill on arc-shaped guide plate surface
Damage；On the other hand, the sliding between graphite bar and arc-shaped guide plate can make graphite bar surface graphite powder occur, and graphite powder part
It can fall in bracing wire, and under the transmitting of bracing wire, graphite powder can be gradually adhered on the cable clamping interface of roller and on roll, stone
Ink powder can lubricate roller and roll, reduce the abrasion of bracing wire and roll and roller, and that improves each component uses the longevity
Life, meanwhile, the possibility that bracing wire is stuck is reduced, makes faculty convenient for rotational handle, improves faculty and adjust experiment teaching aid
Accuracy, facilitate faculty and improve the quality of teaching.
Beneficial effects of the present invention are as follows:
1. the present invention increases the air pressure in piston cylinder, so that piston rod moves upwards band by compressing air bag semi-elastic
Dynamic lens rise, when being in different height for demonstrating lens, influence to imaging, to improve teaching efficiency.
2. the present invention arranges spiral winding wire casing on roll, on the one hand, spiral winding wire casing can prevent guy winding from existing
It knots together and makes bracing wire turmoil；On the other hand, spiral winding wire casing can make bracing wire be located at predetermined position, avoid bracing wire in roll
It is upper sliding and influence the accuracy that bracing wire pulls air bag semi-elastic, thus improve air bag semi-elastic piston cylinder is supplied it is accurate
Property, the accuracy of piston rod mobile lens is improved, so that imaging effect is more preferable；
3. the present invention is pressed against bracing wire by arc-shaped guide plate, makes the entrance spiral winding wire casing that bracing wire is easier, make bracing wire can
To adapt to the trend of spiral winding wire casing, is conducive to raising line and pulls the accuracy of air bag semi-elastic, to improve air bag semi-elastic
To the accuracy of piston cylinder gas supply, the position precision of piston rod mobile lens is improved, is conducive to improve imaging effect.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the A-A cross-sectional view about Fig. 1；
Fig. 3 is arc-shaped guide plate and roller connection schematic diagram of the invention；
In figure: bottom plate 1, linear guide 12, light source base 2, projection plate mounting bracket 3, lens installing support 4, pedestal 41,
Piston cylinder 42, piston rod 43, lens 44, air bag semi-elastic 45, nylon adhesion are buckled 451, roll 46, spiral winding wire casing 461, are drawn
Line 47, arc-shaped guide plate 49, roller 50, graphite bar 51.
Specific embodiment
A kind of optical physics teaching of the invention is carried out as described below with lens focusing experiment teaching aid using Fig. 1 to Fig. 3.
As shown in Figure 1 to Figure 3, a kind of optical physics teaching lens focusing experiment teaching aid, including bottom of the present invention
Plate 1, the linear guide 12 being fixedly mounted on bottom plate 1, light source base 2, projection plate mounting bracket 3, the installation of at least one lens
Bracket 4, the light source base 2, projection plate mounting bracket 3, lens installing support 4 respectively can the relatively described shiftings of linear guide 12
Dynamic setting is in the linear guide 12；The lens installing support 4 includes the pedestal 41 being slidably connected with linear guide 12, hangs down
Piston cylinder 42, the piston rod 43 compatible with piston cylinder 42, the lens for being installed on 43 upper end of piston rod being directly fixed on pedestal
44, be adhered to two of 42 lower end outer wall of piston cylinder air bags 45 semi-elastic, it is vertical with 42 inner wall of piston cylinder and be rotatablely connected around
Spool 46, bracing wire 47, the nylon adhesion being arranged on 45 inner wall of air bag and 42 outer wall of piston cylinder semi-elastic buckle 451, the work
String holes is provided in plug tube 42；One end of the bracing wire 47 is connect with the tip inner wall of air bag 45 semi-elastic, bracing wire 47 it is another
It holds and passes through string holes and be wrapped on roll 46；One end of the roll 46 is pierced by piston cylinder 42, and is pierced by piston cylinder 42
46 end of roll be provided with handle；The air bag semi-elastic 45 is arranged symmetrically on piston cylinder 42,45 quilt of air bag semi-elastic
Will push piston rod 43 after compression and move up moves up lens 44.When work, as faculty in use, experimental content,
Select the lens 44 needed；When faculty adjusts the height of lens installing support 4, the elemental height of lens installing support 4
Positioned at lower, the manual rotational handle of faculty makes roll 46 wind bracing wire 47 and pull air bag 45 semi-elastic, two and half bullets
Property air bag 45 compressed, 451 adhesions are buckled by nylon adhesion in the compressed position of air bag 45 semi-elastic, to prevent air bag semi-elastic
45 reset, and the gas in air bag 45 semi-elastic is pressed into piston cylinder 42, increase the air pressure in piston cylinder 42, so that living
Stopper rod 43 moves upwards the rising of drive lens 44, and when being in different height for demonstrating lens 44, influence to imaging is conducive to
Students lens image formation rule improves teaching efficiency；After the completion of experiment, by manual grip air bag 45 semi-elastic, by Buddhist nun
Imperial adhesion button 451 is torn, and air bag 45 semi-elastic is resetted, and resets roll 46, and air pressure reduces in 42 piston cylinder 42 of piston cylinder,
The decline of 43 drive lens 44 of piston rod resets, to use next time.
Spiral winding wire casing 461 is provided on the two end axles curved surface of the roll 46.When work, a bracing wire 47 is from coiling
The axial plane upper end of axis 46 is wrapped on spiral winding wire casing 461, another bracing wire 47 is wrapped in spiral shell from the axial plane lower end of roll 46
It curls up on wire casing 461；On the one hand, spiral winding wire casing 461 can prevent bracing wire 47 be intertwined knotting and make 47 turmoil of bracing wire；
On the other hand, spiral winding wire casing 461 can make bracing wire 47 be located at predetermined position, and bracing wire 47 is avoided to slide and influence on roll 46
Bracing wire 47 pulls the accuracy of air bag 45 semi-elastic, to improve the accuracy that air bag 45 semi-elastic supplies piston cylinder 42, mentions
The accuracy of 43 mobile lens 44 of high pressure piston rod, so that imaging effect is more preferable；
The piston cylinder 42 is provided with sliding slot one by the position that air bag 45 semi-elastic covers；Arc is provided in the sliding slot one
Shape guide plate 49；The arc-shaped guide plate 49 is pressed against bracing wire 47 when air bag 45 semi-elastic is extruded, and makes bracing wire 47 by spiral winding wire casing
461 trend is wound.When work, arc-shaped guide plate 49 is pressed against bracing wire 47, makes the entrance spiral winding wire casing that bracing wire 47 is easier
461, so that bracing wire 47 is adapted to the trend of spiral winding wire casing 461, is conducive to improve the accuracy that line pulls air bag 45 semi-elastic,
To improve the accuracy that air bag 45 semi-elastic supplies piston cylinder 42, the position precision of 43 mobile lens 44 of piston rod is improved,
Be conducive to improve imaging effect.
One end that the arc-shaped guide plate 49 supports bracing wire 47 is provided with roller 50；The roller 50 connects with the rotation of arc-shaped guide plate 49
It connects, is provided with cable clamping interface on the middle part curved surface of roller 50.When work, bracing wire 47 is slided on arc-shaped guide plate 49, is easy to produce mill
Damage, for a long time in this way, being easy to be broken bracing wire 47, meanwhile, bracing wire 47 is slided on arc-shaped guide plate 49, can also arc be made to lead
49 end of plate is worn and multiple pits occurs, on the one hand, and pit increases the resistance of the sliding of bracing wire 47, on the other hand, with
The increase of pit, the angle that bracing wire 47 can be made tight change, so that the circle number of the rotation of roll 46 is influenced, because of piston rod 43
The height that mobile lens 44 rise is related with the circle number of roll 46, therefore, pit will change the height that rises of lens 44 and around
Relationship between 46 turnning circle of spool, so that the height inaccuracy that lens 44 rise；Therefore, it is arranged in 49 end of arc-shaped guide plate
On the one hand roller 50 with cable clamping interface reduces the degree of wear of bracing wire 47, improve the service life of bracing wire 47；On the other hand,
It ensure that the linear relationship between 46 turnning circle of height and roll of the rising of lens 44, improve 43 mobile lens of piston rod
44 position precision is conducive to faculty and quickly adjusts experiment teaching aid, improves conventional efficient and accuracy；Meanwhile cable clamping interface
It can avoid or reduce bracing wire 47 to slide, 47 influence official of bracing wire is avoided to learn the mobile precision risen of eyeglass.
The arc-shaped guide plate 49 is hollow pipe, and arc-shaped guide plate 49 is connected to air bag 45 and piston cylinder 42 semi-elastic.When work, half
Elastic balloon 45 is compressed, and the portion gas in air bag 45 semi-elastic is entered in piston cylinder 42 by arc-shaped guide plate 49, gas meeting
It blows on roller 50 and bracing wire 47；On the one hand, the gas that arc-shaped guide plate 49 is blown out can hang down the onal that wearing occurs in bracing wire 47
It falls, reduces the possibility that bracing wire 47 is slided；On the other hand, meeting frictional heat generation, the heat meeting of generation are slided in bracing wire 47 on roller 50
Bracing wire 47 is set to be easy aging, and the gas that arc-shaped guide plate 49 is blown out can blow away the heat generated between bracing wire 47 and roller 50,
Be conducive to the heat dissipation of bracing wire 47 and roller 50, the service life of bracing wire 47 and roller 50 improved, to improve entire experiment teaching aid
Service life.
Graphite bar 51 is evenly equipped on the slot inner wall of the sliding slot one；The arc-shaped guide plate 49 and 51 sliding contact of graphite bar.
When work, arc-shaped guide plate 49 slides in graphite bar 51, on the one hand, graphite bar 51 has lubricating action to arc-shaped guide plate 49, reduces
The abrasion on 49 surface of arc-shaped guide plate；On the other hand, the sliding between graphite bar 51 and arc-shaped guide plate 49 can make 51 surface of graphite bar
There is graphite powder, and graphite powder part can be fallen in bracing wire 47, and under the transmitting of bracing wire 47, graphite powder can be gradually adhered to roll
On the cable clamping interface of column 50 and on roll 46, graphite powder can lubricate roller 50 and roll 46, reduce bracing wire 47 with around
The abrasion of spool 46 and roller 50 improves the service life of each component, meanwhile, the possibility that bracing wire 47 is stuck is reduced, makes to teach
Scholar person is convenient for rotational handle, improves the accuracy that faculty adjusts experiment teaching aid, facilitates faculty and improves teaching matter
Amount.
Specific workflow is as follows:
Work as faculty when work in use, experimental content, selects the lens 44 needed；It is adjusted in faculty
When the height of lens installing support 4, the elemental height of lens installing support 4 is located at lower, and the manual rotational handle of faculty makes
Roll 46 winds bracing wire 47 and pulls two air bags 45 semi-elastic, and two air bags 45 semi-elastic are compressed, air bag 45 semi-elastic
Gas of the compressed position by 451 adhesion of nylon adhesion button, to prevent air bag 45 semi-elastic from resetting, in air bag 45 semi-elastic
Body is pressed into piston cylinder 42, increases the air pressure in piston cylinder 42, so that piston rod 43 moves upwards drive drive lens
44 rise, and when being in different height for demonstrating lens 44, influence to imaging is conducive to students lens image formation rule,
Improve teaching efficiency；After the completion of experiment, by manual grip air bag 45 semi-elastic, nylon adhesion button 451 is torn, half bullet is made
Property air bag 45 reset, reset roll 46, air pressure reduces in 42 piston cylinder 42 of piston cylinder, the decline of 43 drive lens 44 of piston rod
It resets, to use next time；
Be wrapped on spiral winding wire casing 461 in a bracing wire 47 from the axial plane upper end of roll 46, another bracing wire 47 from
After the axial plane lower end of roll 46 is wrapped on spiral winding wire casing 461；On the one hand, spiral winding wire casing 461 can prevent bracing wire 47
It is intertwined and knots and make 47 turmoil of bracing wire；On the other hand, spiral winding wire casing 461 can make bracing wire 47 be located at predetermined position, keep away
Exempt from bracing wire 47 to slide on roll 46 and influence the accuracy that bracing wire 47 pulls air bag 45 semi-elastic, to improve gas semi-elastic
The accuracy that capsule 45 supplies piston cylinder 42 improves the accuracy of 43 mobile lens 44 of piston rod；And arc-shaped guide plate 49 is against drawing
Line 47 can make the entrance spiral winding wire casing 461 that bracing wire 47 is easier, bracing wire 47 is made to be adapted to walking for spiral winding wire casing 461
To, be conducive to improve line pull the accuracy of air bag 45 semi-elastic, to improve what air bag 45 semi-elastic supplied piston cylinder 42
Accuracy improves the position precision of 43 mobile lens 44 of piston rod；And the rolling of cable clamping interface is provided in 49 end of arc-shaped guide plate
On the one hand column 50 reduces the degree of wear of bracing wire 47, improve the service life of bracing wire 47；On the other hand, it ensure that on lens 44
The linear relationship between 46 turnning circle of height and roll risen, improves the position precision of 43 mobile lens 44 of piston rod,
Be conducive to faculty and quickly adjust experiment teaching aid, improves conventional efficient and accuracy；Meanwhile cable clamping interface can avoid or reduce to draw
Line 47 slides, and 47 influence official of bracing wire is avoided to learn the mobile precision risen of eyeglass；
After air bag 45 semi-elastic is compressed, the portion gas in air bag 45 semi-elastic enters piston by arc-shaped guide plate 49
In cylinder 42, gas can be blown on roller 50 and bracing wire 47；On the one hand, the gas that arc-shaped guide plate 49 is blown out bracing wire 47 can occur
The onal of abrasion hangs, and reduces the possibility that bracing wire 47 is slided；On the other hand, meeting frictional heat generation is slided in bracing wire 47 on roller 50,
The heat of generation can make bracing wire 47 be easy aging, and the gas that arc-shaped guide plate 49 is blown out can will generate between bracing wire 47 and roller 50
Heat blow away, be conducive to the heat dissipation of bracing wire 47 and roller 50, the service life of bracing wire 47 and roller 50 improved, to improve whole
The service life of a experiment teaching aid；When arc-shaped guide plate 49 slides in graphite bar 51, graphite bar 51 has profit to arc-shaped guide plate 49
Sliding effect, reduces the abrasion on 49 surface of arc-shaped guide plate；Meanwhile the sliding between graphite bar 51 and arc-shaped guide plate 49, graphite can be made
There is graphite powder in 51 surface of item, and graphite powder part can be fallen in bracing wire 47, and under the transmitting of bracing wire 47, graphite powder can be gradually
It is attached on the cable clamping interface of roller 50 and on roll 46, graphite powder can lubricate roller 50 and roll 46, reduce and draw
The abrasion of line 47 and roll 46 and roller 50, improves the service life of each component, meanwhile, there are also reduce bracing wire 47 for graphite powder
The possibility being stuck makes faculty convenient for rotational handle, improves the accuracy that faculty adjusts experiment teaching aid, help to teach
Scholar person improves the quality of teaching.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
Various changes are able to carry out in the range of disengaging present subject matter.
Industrial applicibility
According to the present invention, by compressing air bag semi-elastic, increase the air pressure in piston cylinder, so that piston rod moves upwards
Drive lens rise, and when being in different height for demonstrating lens, the influence to imaging improves teaching efficiency, thus this optics object
Managing teaching lens focusing experiment teaching aid is useful in Physical Experiment fixture technology field.
Claims (6)
1. a kind of optical physics teaching lens focusing experiment teaching aid, including bottom plate (1), be fixedly mounted on it is straight on bottom plate (1)
Line guide rail (12), light source base (2), projection plate mounting bracket (3), at least one lens installing support (4), the light source bottom
Seat (2), projection plate mounting bracket (3), lens installing support (4) can exist respectively relative to the linear guide (12) mobile setting
In the linear guide (12), it is characterised in that: the lens installing support (4) includes the seat being slidably connected with linear guide (12)
Body (41), the piston cylinder (42) being perpendicularly fixed on pedestal and piston cylinder (42) compatible piston rod (43) are installed on piston
The lens (44) of bar (43) upper end, two air bags (45) semi-elastic for being adhered to piston cylinder (42) lower end outer wall and piston cylinder
(42) inner wall it is vertical and be rotatablely connected roll (46), bracing wire (47), be arranged in air bag semi-elastic (45) inner wall and piston
Nylon adhesion button (451) on cylinder (42) outer wall, is provided with string holes on the piston cylinder (42)；One end of the bracing wire (47) with
The tip inner wall of air bag (45) semi-elastic connects, the other end of bracing wire (47) with pass through string holes and be wrapped on roll (46)；
One end of the roll (46) is pierced by piston cylinder (42), and roll (46) end for being pierced by piston cylinder (42) is provided with hand
Handle；The air bag semi-elastic (45) is arranged symmetrically on piston cylinder (42), and air bag (45) semi-elastic will push piston after being compressed
Bar (43), which moves up, moves up lens (44).
2. a kind of optical physics teaching lens focusing experiment teaching aid according to claim 1, it is characterised in that: it is described around
Spiral winding wire casing (461) are provided on the two end axles curved surface of spool (46).
3. a kind of optical physics teaching lens focusing experiment teaching aid according to claim 2, it is characterised in that: the work
Plug tube (42) is provided with sliding slot one by the position that air bag semi-elastic (45) covers；Arc-shaped guide plate is provided in the sliding slot one
(49)；The arc-shaped guide plate (49) is pressed against bracing wire (47) when air bag semi-elastic (45) is extruded, and makes bracing wire (47) by spiral winding
The trend of wire casing (461) is wound.
4. a kind of optical physics teaching lens focusing experiment teaching aid according to claim 3, it is characterised in that: the arc
One end that shape guide plate (49) supports bracing wire (47) is provided with roller (50)；The roller (50) and arc-shaped guide plate (49) are rotatablely connected,
Cable clamping interface is provided on the middle part curved surface of roller (50).
5. a kind of optical physics teaching lens focusing experiment teaching aid according to claim 4, it is characterised in that: the arc
Shape guide plate (49) is hollow pipe, and arc-shaped guide plate (49) is connected to air bag (45) semi-elastic and piston cylinder (42).
6. a kind of optical physics teaching lens focusing experiment teaching aid according to claim 1, it is characterised in that: the cunning
Graphite bar (51) are evenly equipped on the slot inner wall of slot one；The arc-shaped guide plate (49) and graphite bar (51) sliding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248401.3A CN109192027B (en) | 2018-10-25 | 2018-10-25 | Lens gathering experiment teaching aid for optical physics teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811248401.3A CN109192027B (en) | 2018-10-25 | 2018-10-25 | Lens gathering experiment teaching aid for optical physics teaching |
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| CN109192027A true CN109192027A (en) | 2019-01-11 |
| CN109192027B CN109192027B (en) | 2020-09-08 |
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