CN207946972U - A kind of physical experiment apparatus of demonstration light propagation principle - Google Patents

Abstract

The utility model discloses a kind of physical experiment apparatus of demonstration light propagation principle, laser pen including pedestal and right over pedestal, the bottom of the laser pen is fixed with fixing axle, and laser pen is fixed on the top center position of pedestal by fixing axle, the outside turning set of fixing axle is equipped with turntable, and in ring-like fixation, there are four glass boxs at the top of turntable, it is placed with different liquid mediums respectively in four glass boxs, the side of turntable is equipped with the protractor for being placed on base top, and side of the protractor far from turntable is equipped with the butt with fixed installation at the top of chassis outer side, the protractor is arranged right below the round chamber being opened on pedestal.The utility model is economical and practical, when laser pen is irradiated the glass box on front side of it, by rotating turntable so that when the top of protractor coincides with the refracted light of the glass box, calculated convenient for refraction angle of the light to laser pen in corresponding liquid medium.

Description

A kind of physical experiment apparatus of demonstration light propagation principle

Technical field

The utility model is related to the lecture experiment instrument technical field of light propagation principle more particularly to a kind of demonstration light propagations The physical experiment apparatus of principle.

Background technology

In middle school physical curriculum, optical knowledge is the important study component part in course.Natural light is in empty gas and water etc. Propagation path in medium is can not with the naked eye to observe, to the refraction of light intuitively recognize with vivid for the ease of student Know, through retrieval, it has already been proposed a kind of physics for demonstrating light propagation principle of Patent No. " CN206833779U " Experimental provision, the patent include pedestal, turntable, laser pen, glass box, protractor, butt, and turntable is arranged in pedestal top, described Laser pen is arranged in the upper surface center position of turntable, and the laser pen can be relatively rotated with turntable, the turntable it is upper ring-like Four glass boxs are distributed, butt is arranged in the side of the pedestal, and protractor is arranged in the top side of the pedestal, due to the patent In protractor and pedestal be directly fixedly mounted so that protractor can not carry out descending operation, and then the top of protractor can not It is overlapped with the refracted light of liquid medium in glass box, is unfavorable for experimenter to the light of laser pen in corresponding liquid medium In refraction angle calculated.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of demonstration light propagation proposed The physical experiment apparatus of principle.

To achieve the goals above, the utility model uses following technical solution：

A kind of physical experiment apparatus of demonstration light propagation principle, including pedestal and the laser pen right over pedestal, institute The bottom for stating laser pen is fixed with fixing axle, and laser pen is fixed on the top center position of pedestal, fixing axle by fixing axle Outside turning set turntable is housed, and the top of turntable in ring-like fixation there are four glass box, placed respectively in four glass boxs There are different liquid mediums, the side of turntable to be equipped with the protractor for being placed on base top, and side of the protractor far from turntable Equipped with the butt with fixed installation at the top of chassis outer side, the protractor is arranged right below the round chamber being opened on pedestal Room, and the first round through-hole is offered in the top inner wall of round chamber, the inner vertical of round chamber is placed with top setting For the round cylinder of opening, and circular ring type guide rail is slidably connected on the outside of round cylinder, the outside of circular ring type guide rail with it is round The side wall of chamber is fixedly mounted, and the bottom of round cylinder is equipped with the first bevel type gear, and the first bevel type gear is engaged with second Bevel type gear, side of second bevel type gear far from butt is fixed with the connecting shaft installed with base rotation, and connecting shaft is located at Side outside pedestal is equipped with runner, and the inside thread of round cylinder is equipped with the lead screw being fixedly mounted with protractor bottom, silk Bar is slidably installed with the first round through-hole.

Preferably, offer multiple sliding slots on the outside of the lead screw, and the internal slide of sliding slot be connected with it is first round The mutually fixed sliding block of through-hole side wall.

Preferably, the sliding slot is four to six, and four to six sliding slots are opened in the outside of lead screw vertically.

Preferably, the side wall of the round cylinder is equipped with the camber screw thread being meshed with lead screw.

Preferably, the second round through-hole that position matches with connecting shaft is offered on the side wall of the round chamber, and The first bearing with fixed suit on the outside of connecting shaft is fixed on the side wall of second round through-hole.

Preferably, the top center position of the turntable offers the round through-hole of third, and the side wall of the round through-hole of third On be fixed with and fixing axle on the outside of fixed suit second bearing.

The beneficial effects of the utility model：Pass through runner, connecting shaft, first bearing, the second bevel type gear, the first umbellate form tooth Circular ring type guide rail in wheel, round cylinder and round chamber sidewall matches, when laser pen shines the glass box on front side of it When penetrating, rotating wheel, runner drives the second bevel type gear to be rotated by connecting shaft, connecting shaft by the second bevel type gear and First bevel type gear drives round cylinder to be slided on circular ring type guide rail, by camber screw thread on the inside of round cylinder, Sliding block on lead screw, protractor, sliding slot and the first round through-hole side wall matches, when round cylinder carries out on circular ring type guide rail When sliding, round cylinder drives lead screw to carry out upward position movement in the inside of the first round through-hole, until the top of protractor When coinciding with the refracted light of the glass box, carried out convenient for refraction angle of the light to laser pen in corresponding liquid medium It calculates, the utility model is economical and practical, when laser pen is irradiated the glass box on front side of it, passes through rotating wheel so that When the top of protractor and the refracted light of one of glass box coincide, it is situated between in corresponding liquid convenient for the light to laser pen Refraction angle in matter is calculated.

Description of the drawings

Fig. 1 be the utility model proposes a kind of demonstration light propagation principle physical experiment apparatus structural schematic diagram；

Fig. 2 be the utility model proposes a kind of demonstration light propagation principle physical experiment apparatus plan structure signal Figure；

Fig. 3 be the utility model proposes a kind of demonstration light propagation principle physical experiment apparatus in protractor and butt Location diagram；

Fig. 4 be the utility model proposes a kind of demonstration light propagation principle physical experiment apparatus A-A structural representation Figure.

In figure：1 pedestal, 2 laser pens, 3 fixing axles, 4 turntables, 5 glass boxs, 6 protractors, 7 butt, 8 round chambers, 9 One round through-hole, 10 round cylinders, 11 circular ring type guide rails, 12 first bevel type gears, 13 second bevel type gears, 14 connecting shafts, 15 Runner, 16 lead screws, 17 sliding slots, 18 sliding blocks.

Specific implementation mode

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.

Referring to Fig.1-4, a kind of physical experiment apparatus of demonstration light propagation principle, including pedestal 1 and right over pedestal 1 Laser pen 2, the bottom of laser pen 2 is fixed with fixing axle 3, and laser pen 2 is fixed on by fixing axle 3 in the top of pedestal 1 Entreat position, the outside turning set of fixing axle 3 is equipped with turntable 4, and the top of turntable 4 in ring-like fixation there are four glass box 5, four Different liquid mediums is placed in glass box 5 respectively, the side of turntable 4 is equipped with the protractor 6 for being placed on 1 top of pedestal, and Side of the protractor 6 far from turntable 4 is equipped with the butt 7 being fixedly mounted with 1 outside top of pedestal, and protractor 6 is arranged right below The round chamber 8 being opened on pedestal 1, and the first round through-hole 9, round chamber 8 are offered in the top inner wall of round chamber 8 Inner vertical be placed with the round cylinder 10 that top is set as opening, and the outside of round cylinder 10 slidably connects circular ring type Guide rail 11, the outside of circular ring type guide rail 11 and the side wall of round chamber 8 are fixedly mounted, and the bottom of round cylinder 10 is equipped with first Bevel type gear 12, and the first bevel type gear 12 is engaged with the second bevel type gear 13, the second side of the bevel type gear 13 far from butt 7 It is fixed with the connecting shaft 14 being rotatablely installed with pedestal 1, and connecting shaft 14 is located at the side outside pedestal 1 and is equipped with runner 15, it is round The inside thread of cylinder 10 is equipped with the lead screw 16 being fixedly mounted with 6 bottom of protractor, and lead screw 16 and the first round through-hole 9 slide Installation, the outside of lead screw 16 offers multiple sliding slots 17, and the internal slide of sliding slot 17 is connected with and 9 side wall of the first round through-hole Mutually fixed sliding block 18, sliding slot 17 is four to six, and four to six sliding slots 17 are opened in the outside of lead screw 16, round cylinder vertically The side wall of body 10 is equipped with the camber screw thread being meshed with lead screw 16, and position and connecting shaft are offered on the side wall of round chamber 8 14 the second round through-holes to match, and be fixed on the side wall of the second round through-hole with the fixed suit in the outside of connecting shaft 14 the The top center position of one bearing, turntable 4 offers the round through-hole of third, and is fixed with and consolidates on the side wall of the round through-hole of third The second bearing of the fixed suit in 3 outside of dead axle, passes through runner 15, connecting shaft 14, first bearing, the second bevel type gear 13, first Circular ring type guide rail 11 on 8 side wall of bevel type gear 12, round cylinder 10 and round chamber matches, when laser pen 2 is to its front side Glass box 4 when being irradiated, rotating wheel 15, runner 15 drives the second bevel type gear 13 to be rotated by connecting shaft 14, Connecting shaft 14 drives round cylinder 10 enterprising in circular ring type guide rail 11 by the second bevel type gear 13 and the first bevel type gear 12 Row sliding passes through camber screw thread, lead screw 16,9 side wall of protractor 6, sliding slot 17 and the first round through-hole of 10 inside of round cylinder On sliding block 18 match, when round cylinder 10 is slided on circular ring type guide rail 11, round cylinder 10 drive lead screw 16 Upward position movement is carried out in the inside of the first round through-hole 9, until the refracted light at the top of protractor 6 and the glass box 4 When coinciding, calculated convenient for refraction angle of the light to laser pen 2 in corresponding liquid medium, the utility model economy Practicality passes through rotating wheel 15 when laser pen 2 is irradiated the glass box 4 on front side of it so that the top of protractor 6 with When the refracted light of the glass box 4 coincides, carried out convenient for refraction angle of the light to laser pen 2 in corresponding liquid medium It calculates.

Operation principle：When starting laser pen 2, laser pen 2 is irradiated the glass box 4 on front side of it, the light of laser pen 2 It is reflected by the liquid medium in glass box 4, the corresponding refracted light of the liquid medium in glass box 4 can be irradiated to butt On 7, then runner 15 is rotated, runner 15 is fixedly mounted with connecting shaft 14, and connecting shaft 14 is installed by first bearing In the inside of the second round through-hole, runner 15 drives connecting shaft 14 to be rotated in the inside of the second round through-hole, connecting shaft 14 The second bevel type gear 13 is driven to be rotated, since the second round gear 13 and the first bevel type gear 12 are meshed, the second umbellate form Gear 13 drives the first bevel type gear 12 to be rotated in the inside of round chamber 8, and the first bevel type gear 12 drives round cylinder 10 are slided on circular ring type guide rail 11, due on 10 side wall of round cylinder camber screw thread and lead screw 16 be meshed, it is round Cylinder 10 drives lead screw 16 to carry out upward position movement in the inside of the first round through-hole 9 so that the sliding slot 17 on lead screw 16 exists It is slided on sliding block 18, lead screw 16 drives protractor 6 to carry out height adjusting, until in the top of protractor 6 and the glass box 4 When the refracted light of liquid medium coincides, be conducive to refraction of the experimenter to the light of laser pen 2 in corresponding liquid medium Angle is calculated.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of physical experiment apparatus of demonstration light propagation principle, including pedestal（1）With positioned at pedestal（1）The laser pen of surface （2）, the laser pen（2）Bottom be fixed with fixing axle（3）, and laser pen（2）Pass through fixing axle（3）It is fixed on pedestal（1） Top center position, fixing axle（3）Outside turning set be equipped with turntable（4）, and turntable（4）Top be fixed with four in ring-like A glass box（5）, turntable（4）Side be equipped be placed on pedestal（1）The protractor at top（6）, and protractor（6）Far from turntable （4）Side be equipped with and pedestal（1）The butt that outside top is fixedly mounted（7）, which is characterized in that the protractor（6）Just Lower section is equipped with and is opened in pedestal（1）On round chamber（8）, and round chamber（8）Top inner wall on to offer first round Through-hole（9）, round chamber（8）Inner vertical be placed with top be set as opening round cylinder（10）, and round cylinder （10）Outside slidably connect circular ring type guide rail（11）, circular ring type guide rail（11）Outside and round chamber（8）Side wall it is solid Dingan County fills, round cylinder（10）Bottom the first bevel type gear is installed（12）, and the first bevel type gear（12）It is engaged with second Bevel type gear（13）, the second bevel type gear（13）Far from butt（7）Side be fixed with and pedestal（1）The connecting shaft of rotational installation （14）, and connecting shaft（14）Positioned at pedestal（1）Outer side is equipped with runner（15）, round cylinder（10）Inside thread installation Have and protractor（6）The lead screw that bottom is fixedly mounted（16）, lead screw（16）With the first round through-hole（9）It is slidably installed.

2. a kind of physical experiment apparatus of demonstration light propagation principle according to claim 1, which is characterized in that the lead screw （16）Outside offer multiple sliding slots（17）, and sliding slot（17）Internal slide be connected with and the first round through-hole（9）Side wall Mutually fixed sliding block（18）.

3. a kind of physical experiment apparatus of demonstration light propagation principle according to claim 2, which is characterized in that the sliding slot （17）It it is four to six, and four to six sliding slots（17）It is opened in lead screw vertically（16）Outside.

4. a kind of physical experiment apparatus of demonstration light propagation principle according to claim 1, which is characterized in that described round Cylinder（10）Side wall be equipped with and lead screw（16）The camber screw thread being meshed.

5. a kind of physical experiment apparatus of demonstration light propagation principle according to claim 1, which is characterized in that described round Chamber（8）Side wall on offer position and connecting shaft（14）The the second round through-hole to match, and the side of the second round through-hole It is fixed on wall and connecting shaft（14）The first bearing of suit is fixed in outside.

6. a kind of physical experiment apparatus of demonstration light propagation principle according to claim 1, which is characterized in that the turntable （4）Top center position offer the round through-hole of third, and be fixed on the side wall of the round through-hole of third and fixing axle（3）Outside The second bearing of suit is fixed in side.