CN209028936U - A kind of physics light refraction experimental demonstration device - Google Patents

A kind of physics light refraction experimental demonstration device Download PDF

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Publication number
CN209028936U
CN209028936U CN201821163067.7U CN201821163067U CN209028936U CN 209028936 U CN209028936 U CN 209028936U CN 201821163067 U CN201821163067 U CN 201821163067U CN 209028936 U CN209028936 U CN 209028936U
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China
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switching
lens
side wall
groups
light refraction
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Expired - Fee Related
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CN201821163067.7U
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Chinese (zh)
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王钦凯
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Abstract

The utility model discloses a kind of physics light refraction experimental demonstration devices of Physical Experiment teaching aid technical field, including device box, the front side wall of device box is provided with transparent sight hole, the two sides up and down of transparent sight hole are symmetrically arranged with measurement sliding rail and measurement sliding block, measurement plectane is provided between two groups of measurement sliding blocks, angle-differentiated line is provided on measurement plectane, the left side wall of device box is equipped with laser emitter, the right side wall of device box is provided with switching turntable, switching shaft is fixedly connected on the left of switching turntable, switch the right side wall that shaft runs through device box, switch and is provided with four groups of switching struts on the left of the outer circumferential walls of shaft, switching strut is respectively connected with lens clamping frame far from one end of switching shaft, equal clamping has lens in four groups of lens clamping frames, the utility model, which provides one kind, can compare experiment, Reduce the physics light refraction experimental demonstration device of experimental error and quantitative observation.

Description

A kind of physics light refraction experimental demonstration device
Technical field
The utility model relates to Physical Experiment teaching aid technical field, specially a kind of physics light refraction experimental demonstration dress It sets.
Background technique
Physics Course is in a planned way to choose physics according to the law of cognition of teaching purpose, requirement and student Content, and it is transformed into a branch of instruction in school of school.Need to demonstrate on the physics lesson in middle school the refraction of light, reflex and Rule.Current most of uses are all homemade simple teaching aid, the refracting process of existing teaching demonstration rays pass through lens It mostly uses candle imaging to demonstrate greatly, but the entire route that cannot clearly see light clearly in this process middle school student, can only pass through Line condition after refraction of the size relation of different location candle imaging to illustrate rays pass through lens, cannot understand intuitively Show the line condition before and after the refraction of rays pass through lens.
For this purpose, those skilled in the technology concerned improve this, such as Chinese Patent Application No. is " a kind of refraction demonstrator used up of imparting knowledge to students, the shell including the refraction demonstrator used up of imparting knowledge to students that CN201020509017.7 is proposed Body, the shell are a transparent container, and the shell is provided with light and shows that liquid, housing central section are equipped with lens, lens leaching It is shown in liquid in light, the shell side is equipped with light source fixing seat, on the height and position of the light source fixing seat and lens It is corresponding ", the technology although the characteristics of the utility model can satisfy relatively clear display optical path effect, in this application file Scheme still has deficiency, if the device can only once use a kind of lens to carry out experimental demonstration, cannot achieve a variety of lens foldings Contrast on effect is penetrated, and is unable to birefringence angle change and carries out quantitative observation.
Based on this, the utility model devises a kind of physics light refraction experimental demonstration device, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of physics light refraction experimental demonstration devices, to solve above-mentioned apparatus Can only once a kind of lens be used to carry out experimental demonstration, cannot achieve a variety of lens refraction effect comparisons, and be unable to birefringence Angle change carries out the problem of quantitative observation.
To achieve the above object, the utility model provides the following technical solutions: a kind of physics light refraction experimental demonstration Device, including device box, the front side wall of described device cabinet are provided with transparent sight hole, and up and down the two of the transparent sight hole Side is symmetrically arranged with measurement sliding rail;The front side of the measurement sliding rail is connected with measurement sliding block, measures sliding block described in two groups Between measurement plectane is connected with by connecting rod, be provided with angle-differentiated line, described device case on the measurement plectane The left side wall of body is equipped with laser emitter, and the left side emission port of the laser emitter horizontally extends into the interior of device box Chamber, the right side wall of described device cabinet are provided with switching turntable, are fixedly connected with switching shaft, institute on the left of the switching turntable It states switching shaft to be rotatablely connected through the right side wall of device box and by the right side wall of bearing and device box, the switching turns Four groups of switching struts are provided on the left of the outer circumferential walls of axis, the switching strut is respectively connected with lens far from one end of switching shaft Clamping frame, clamping has lens in lens clamping frame described in four groups.
Preferably, the side wall circumference uniform distribution of the switching turntable is provided with four groups of limiting grooves, the side of the limiting groove To corresponding with the direction of lens, in order to accurately switch lens.
Preferably, limited position mechanism is arranged in the top of the switching turntable, and the position-limit mechanism includes being fixed in device case The limiting fixed seat of body sidewall, the inner cavity of the limiting fixed seat are provided with the limit jacking block of liftable sliding, the spacing top The bottom of block is stretched out the inner cavity of limiting fixed seat and is abutted against with wherein one group of limiting groove, the top of the limit jacking block and limit Abutting between the inner cavity top of position fixing seat has spacing compression spring, is matched by position-limit mechanism with limiting groove, convenient for accurate rotation Turn switching lens, reduces experimental system error.
Preferably, the intracavity sidewall of described device cabinet is covered with paint, lacquer, colour wash, etc. into black, provides dark background, keeps optical path more obvious It is easy to observe.
Preferably, the inner cavity of described device cabinet is filled with the liquid that can show optical path, and the liquid is diluted carbon Ink or diluted milk enable optical path completely clearly to show in the inner cavity of device box.
Preferably, lens described in four groups are set as the convex lens of two kinds of unlike materials and the concavees lens of two groups of unlike materials, Convenient for the refraction effect of comparative observation difference lens.
Preferably, case lid is provided at the top of described device cabinet, the bottom of described device cabinet is provided with leakage fluid dram, just The injection and discharge of liquid are shown in optical path.
Compared with prior art, the utility model has the beneficial effects that the utility model is structurally reasonable, by switching turntable The lens switching for controlling four groups of unlike material shapes, realizes that disposable laboratory compares the effect of a variety of medium anaclasis;Switching Turntable and position-limit mechanism cooperate, and can accurately rotate switching lens, reduce apparatus system error;The utility model is provided with can The measurement plectane of left and right translation, realizes the quantitative observation of optical path change;I.e. the utility model, which provides one kind, can compare reality Test, reduce the physics light refraction experimental demonstration device of experimental error and quantitative observation.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the utility model schematic diagram of internal structure;
Fig. 3 is the utility model position-limit mechanism structural schematic diagram;
Fig. 4 is the utility model lens arrangement schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- device box, 2- transparent sight hole, 3- measure sliding rail, and 4- measures sliding block, and 5- measures plectane, 6- angle-differentiated Line, 7- laser emitter, 8- switching turntable, 81- limiting groove, 9- switching shaft, 10- switching strut, 11- lens clamping frame, 12- lens, 13- position-limit mechanism, 131- limiting fixed seat, 132- limit jacking block, 133- spacing compression spring, 14- case lid, 15- drain Mouthful.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of physics light refraction experimental demonstration dress It sets, including device box 1, the intracavity sidewall of device box 1 is covered with paint, lacquer, colour wash, etc. into black, and dark background is provided, and keeps optical path more obvious It is easy to observe, the inner cavity of device box 1 is filled with the liquid that can show optical path, and liquid is diluted carbon black ink or diluted ox Milk enables optical path completely clearly to show that the front side wall of device box 1 is provided with transparent observation in the inner cavity of device box 1 Window 2, the two sides up and down of transparent sight hole 2 are symmetrically arranged with measurement sliding rail 3;The front side of measurement sliding rail 3 is connected with measurement Sliding block 4 is connected with measurement plectane 5 by connecting rod between two groups of measurement sliding blocks 4, measure be arranged on plectane 5 it is angled Reticule 6, the left side wall of device box 1 are equipped with laser emitter 7, and the left side emission port of laser emitter 7 horizontally extends into The inner cavity of device box 1, the right side wall of device box 1 are provided with switching turntable 8, the side wall circumference uniform distribution setting of switching turntable 8 There are four groups of limiting grooves 81, limited position mechanism 13 is arranged in the top of switching turntable 8, and position-limit mechanism 13 includes being fixed in device box The limiting fixed seat 131 of 1 side wall, the inner cavity of limiting fixed seat 131 are provided with the limit jacking block 132 of liftable sliding, spacing top The bottom of block 132 is stretched out the inner cavity of limiting fixed seat 131 and is abutted against with wherein one group of limiting groove 81, limit jacking block 132 Spacing compression spring 133 has been abutted between top and the inner cavity top of limiting fixed seat 131, passes through position-limit mechanism 13 and limiting groove 81 It matches, switches lens 12 convenient for accurate rotation, reduce experimental system error, the direction of limiting groove 81 and the direction of lens 12 Corresponding, in order to accurately switch lens 12, the left side of switching turntable 8 is fixedly connected with switching shaft 9, and switching shaft 9 runs through The right side wall of device box 1 is simultaneously rotatablely connected by the right side wall of bearing and device box 1, and the outer circumferential walls for switching shaft 9 are left Side is provided with four groups of switching struts 10, and switching strut 10 is respectively connected with lens clamping frame 11 far from one end of switching shaft 9, and four groups Equal clamping has lens 12 in lens clamping frame 11, and four groups of lens 12 are set as the convex lens and two groups of difference materials of two kinds of unlike materials The concavees lens of matter, convenient for the refraction effect of comparative observation difference lens, the top of device box 1 is provided with case lid 14, device case The bottom of body 1 is provided with leakage fluid dram 15, and the injection and discharge of liquid are shown convenient for optical path.
One concrete application of the present embodiment are as follows: the present apparatus is a kind of physics light refraction experimental demonstration device, is used When, case lid 14 is opened, clear water is poured into toward the inner cavity of device box 1, so that the water surface was not had underlying lens, instilled in net clear water A few drop carbon black inks or milk, the optical path enable is cleaned in this liquid to be shown, and opens laser emitter 7, Laser emission The laser harness that device 7 emits in the horizontal direction to the right, should be with laser at underlying lens centre when four groups of lens 12 are installed The projected path of harness is overlapped, in this way, laser harness can pass through at the center of lens, and generates refraction effect, experimenter It can be observed by transparent sight hole 2, since the front side of transparent sight hole 2 is provided with by measurement sliding rail 3 and measurement sliding block 4 Plectane 5 is measured, measurement plectane 5 is transparent material, and the level height in its center of circle should be equal to laser harness when measurement plectane 5 is installed Level height, and measure and be provided with angle-differentiated line 6 on plectane 5, by moving left and right adjustment measurement plectane 5, it can measure refraction The quantitative observation of refraction angle variation is realized at the refraction angle of laser harness afterwards with this;
When needing to switch lens 12, switching turntable 8 can be manually rotated, the edge due to switching turntable 8 has and lens The corresponding limiting groove 81 of 12 angles, and limit the bottom of jacking block 132 to be provided with the circular arc matched with limiting groove 81 convex Edge, so starting to be detached from current limiting groove 81, limit jacking block 132 overcomes the bullet of spacing compression spring 133 when switching turntable 8 rotates Power effect is shunk, when the bottom that switching turntable 8 turns to next limiting groove 81 and limit jacking block 132 is close, spacing top Block 132 is acted on by 133 elastic force of spacing compression spring to be stretched out, and the base flange for limiting jacking block 132 is abutted with 81 to be bonded, no longer artificial rotation In the case of realize and limit its rotation, mostly cooperated with switching turntable 8 and position-limit mechanism 13, there is pause to feel after being rotated by 90 ° every time, The accurate angle conversion of lens 12 is realized with this, and then avoids causing experimental system error due to conversion angle deviation, lens 12 can dismantle from lens clamping frame 11, so lens clamping frame 11 is not limited to the current four groups of lens 12 of clamping, can pass through replacement For the lens 12 of its pattern, to realize the experimental demonstration of more medium refraction effects;
Leakage fluid dram 15 is equipped with sealing cover, and after observation experiment, sealing cover on openable leakage fluid dram 15 is by device case Cleaning device after liquid discharge in body 1.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. a kind of physics light refraction experimental demonstration device, including device box (1), it is characterised in that: described device cabinet (1) front side wall is provided with transparent sight hole (2), and the two sides up and down of the transparent sight hole (2) are symmetrically arranged with measurement sliding rail (3);The front side of measurement sliding rail (3) is connected with measurement sliding block (4), passes through between measurement sliding block (4) described in two groups Connecting rod is connected with measurement plectane (5), is provided with angle-differentiated line (6), described device case on the measurement plectane (5) The left side wall of body (1) is equipped with laser emitter (7), and the left side emission port of the laser emitter (7) horizontally extends into device The inner cavity of cabinet (1), the right side wall of described device cabinet (1) are provided with switching turntable (8), the left side of switching turntable (8) It is fixedly connected with switching shaft (9), switching shaft (9) runs through the right side wall of device box (1) and passes through bearing and device The right side wall of cabinet (1) is rotatablely connected, and is provided with four groups of switching struts (10) on the left of the outer circumferential walls of switching shaft (9), Switching strut (10) is respectively connected with lens clamping frame (11) far from one end of switching shaft (9), lens clamping described in four groups Equal clamping has lens (12) in frame (11).
2. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: the switching turns The side wall circumference uniform distribution of disk (8) is provided with four groups of limiting grooves (81), direction and lens (12) of the limiting groove (81) Direction is corresponding.
3. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: the switching turns Limited position mechanism (13) are arranged in the top of disk (8), and the position-limit mechanism (13) includes the limit for being fixed in device box (1) side wall Fixing seat (131), the inner cavity of the limiting fixed seat (131) are provided with the limit jacking block (132) of liftable sliding, the limit The bottom of jacking block (132) is stretched out the inner cavity of limiting fixed seat (131) and is abutted against with wherein one group of limiting groove (81), the limit Spacing compression spring (133) have been abutted between the top and the inner cavity top of limiting fixed seat (131) of position jacking block (132).
4. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: described device case The intracavity sidewall of body (1) is covered with paint, lacquer, colour wash, etc. into black.
5. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: described device case The inner cavity of body (1) is filled with the liquid that can show optical path, and the liquid is diluted carbon black ink or diluted milk.
6. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: described in four groups thoroughly Mirror (12) is set as the convex lens of two kinds of unlike materials and the concavees lens of two groups of unlike materials.
7. a kind of physics light refraction experimental demonstration device according to claim 1, it is characterised in that: described device case It is provided at the top of body (1) case lid (14), the bottom of described device cabinet (1) is provided with leakage fluid dram (15).
CN201821163067.7U 2018-07-23 2018-07-23 A kind of physics light refraction experimental demonstration device Expired - Fee Related CN209028936U (en)

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Application Number Priority Date Filing Date Title
CN201821163067.7U CN209028936U (en) 2018-07-23 2018-07-23 A kind of physics light refraction experimental demonstration device

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Application Number Priority Date Filing Date Title
CN201821163067.7U CN209028936U (en) 2018-07-23 2018-07-23 A kind of physics light refraction experimental demonstration device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112530252A (en) * 2021-01-23 2021-03-19 邯郸市丛台区世天科技有限公司 High school physics optical test demonstration device
CN112542079A (en) * 2020-12-15 2021-03-23 连云港师范高等专科学校 Physics optical experiment teaching aid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112542079A (en) * 2020-12-15 2021-03-23 连云港师范高等专科学校 Physics optical experiment teaching aid
CN112542079B (en) * 2020-12-15 2022-05-13 连云港师范高等专科学校 Physics optical experiment teaching aid
CN112530252A (en) * 2021-01-23 2021-03-19 邯郸市丛台区世天科技有限公司 High school physics optical test demonstration device

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Granted publication date: 20190625

Termination date: 20200723