CN209447385U - A kind of physics swing dynamics apparatus for demonstrating - Google Patents

Abstract

The utility model discloses a kind of physics swing dynamics apparatus for demonstrating, relate generally to physics demonstration device field.Including pedestal, baffle is slidably connected on pedestal, the top of first support bar is fixed with sunpender, other end is connected with iron ball, the second support frame is fixed on pedestal, first support frame and the second support frame are located at the two sides of baffle, cylinder is fixed on second support frame, piston is equipped in cylinder, piston is fixed with connecting rod far from the side of cylinder, connecting rod is fixed with impingement plate far from one end of piston, cylinder is equipped with light bulb, one end connection of light bulb has resistance slide bar, slide plate is slidably connected on resistance slide bar, cylinder is communicated with U-tube far from one end of piston, the other end of U-tube is open, liquid is filled in U-tube.It is shown the utility model has the beneficial effects that: the motion state being abstracted in pendulum motion can be changed into more intuitive mode by it, is conducive to the study and understanding to object pendulum motion.

Description

A kind of physics swing dynamics apparatus for demonstrating

Technical field

The utility model relates to physics dynamics apparatus for demonstrating field, specifically a kind of physics swing dynamics apparatus for demonstrating.

Background technique

Physics is a kind of natural science, pays attention to study substance, energy, space, time, especially their own property Matter and correlation each other.Physics is the knowledge about the Nature rule；It says in a broad sense, physics Exploring Analysis The phenomenon that the Nature is occurred, with understand its rule, therefore physics belong in the study career of student one it is extremely important Subject, but the principle of many physical phenomenons only can be very obscure if the explanation, therefore drills in the teaching of physics Show that experiment is a kind of common teaching means；When studying the movement of object, especially pendulum motion, due to the movement rail of object Mark is arc, therefore the motion state on each point of its motion profile is not easy to state, and understanding is got up very abstract, it is therefore desirable to A kind of apparatus for demonstrating can decompose the process of pendulum motion, and be shown with obvious intuitive way, assist to object Pendulum motion process understanding.

Utility model content

The purpose of this utility model is to provide a kind of physics swing dynamics apparatus for demonstrating, it can will be in pendulum motion Abstract motion state is changed into more intuitive mode and shows, and is conducive to study and understanding to object pendulum motion.

The utility model to achieve the above object, is achieved through the following technical solutions:

A kind of physics swing dynamics apparatus for demonstrating, including pedestal, one end of the pedestal are fixed with first support bar, institute First support bar is stated equipped with the first winder, slidably connects baffle on the pedestal, first winder and baffle it Between be connected with drawstring, the top of the support rod is fixed with sunpender, and the sunpender is equipped with the second winder, second spiral Lifting rope is connected on device, the other end of the lifting rope is connected with iron ball, it is fixed with the second support frame on the pedestal, described One support frame and the second support frame are located at the two sides of baffle, are fixed with cylinder on second support frame, in the cylinder Equipped with piston, the piston is fixed with connecting rod far from the side of cylinder, and the connecting rod is fixed with far from one end of piston and touches Plate is hit, the top of the impingement plate is not less than the top of baffle, and the cylinder is equipped with light bulb, and an end line of the light bulb connects It is connected to resistance slide bar, slide plate is slidably connected on the resistance slide bar, the slide plate is fixed in connecting rod, the slide plate and lamp The other end connection of bubble, the cylinder are communicated with U-tube far from one end of piston, and the other end of the U-tube is opened Mouthful, liquid is filled in the U-tube.

The U-tube is equipped with graduation mark far from one end of cylinder.

Liquid in the U-tube is copper-bath.

The downside of the sunpender is equipped with protractor.

The top of the impingement plate and the top of baffle are in sustained height.

Baffle is slidably connected on the baffle.

The prior art is compared, the utility model has the beneficial effects that:

The present apparatus can make more intuitive demonstration to the pendulum motion of object, by the initial angle for changing object of which movement Degree, makes movement decomposition to the entire pendulum motion process of object, the detailed object that shows is in each movement shape of pendulum motion The dynamics situation of state, and be converted into more intuitive effective mode and show, the study of pendulum motion is assisted, helps student more The learning interest of student is improved while understanding well.When in use, baffle is pulled to transport to iron ball direction using the first winder It is dynamic, it touches iron ball and continues to move later, until iron ball leaves baffle and swings after the height of iron ball is more than the height of baffle Movement, promotion piston makes gas enter U-tube, the liquid of U-tube open end liquid to cylinder motion after touching impingement plate Face rises, and changes the height of iron ball using the second winder, thus it is possible to vary the angle value of iron ball original state, to make U-tube Interior liquid rises different height, so to the swing dynamics of the iron ball of different motion state make it is more intuitive show, The study that pendulum motion can preferably be assisted improves the learning interest of student, and present apparatus structure is simple, easy-to-understand, is easy to It realizes and promotes the use of.

Detailed description of the invention

Attached drawing 1 is the structural schematic diagram of the utility model.

Label shown in attached drawing:

1, pedestal；2, first support bar；3, the first winder；4, baffle；5, drawstring；6, sunpender；7, the second winder；8, Lifting rope；9, iron ball；10, the second support frame；11, cylinder；12, piston；13, connecting rod；14, impingement plate；15, light bulb；16, resistance Slide bar；17, slide plate；18, U-tube；19, protractor；20, baffle.

Specific embodiment

The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen It please limited range.

Described in the utility model is a kind of physics swing dynamics apparatus for demonstrating, and main structure includes pedestal 1, the pedestal 1 one end is welded with first support bar 2, and the first winder 3 is threaded in the first support bar 2, is slided on the pedestal 1 It is dynamic to be connected with baffle 4, sliding rail is equipped on the specific pedestal 1, the bottom end of the baffle 4 is equipped with pulley, the pulley energy It slides on the slide rail, drawstring 5 is connected between first winder 3 and baffle 4, rotating first winder 3 can control Baffle 4 processed is slided to the direction of first support bar 2, then can be unclamped the first winder 3 and is stirred baffle 4 with hand and returns it to original Position, the top of the first support bar 2 is threaded with the second winder 7 on the sunpender 6 integrally formed with sunpender 6, described Lifting rope 8 is connected on second winder 7, there is iron ball 9 in the other end system of the lifting rope 8, can hang by 7 folding and unfolding of the second winder Rope 8 changes the height of iron ball 9, and then baffle 4 is cooperated to change the initial position that object is swung, it is screwed on the pedestal 1 There is the second support frame 10, first support frame and the second support frame 10 are located at the two sides of baffle 4, second support frame Cylinder 11 is welded on 10 top, the cylinder 11 uses sealed construction, is equipped with piston 12, institute in the cylinder 11 Stating piston 12 can move in cylinder 11 in the case where guaranteeing closed, and the piston 12 is integrally formed far from the side of cylinder 11 There is connecting rod 13, the connecting rod 13 is welded with impingement plate 14, the top of the impingement plate 14 far from one end of piston 12 Not less than the top of baffle 4, it is ensured that iron ball 9 can touch impingement plate 14 after leaving baffle 4, generate to impingement plate 14 Certain impact force, the cylinder 11 are equipped with light bulb 15, and one end connection of the light bulb 15 has resistance slide bar 16, described Resistance slide bar 16 is the uniform slide bar of resistance, slidably connects slide plate 17 on the resistance slide bar 16, the slide plate 17 is set in Resistance slide bar 16, contacts with each other between the two and connection, the slide plate 17 are weldingly fixed in connecting rod 13, works as collision When plate 14 receives impact force and moves to the direction of cylinder 11, slide plate 17 is driven to slide along resistance slide bar 16, the slide plate 17 and lamp The other end connection of bubble 15, with the sliding of slide plate 17, the resistance of 15 place circuit of light bulb changes, and then makes lamp The brightness of bubble changes, and the cylinder 11 is communicated with U-tube 18 far from one end of piston 12, and other the one of the U-tube 18 End opening fills liquid in the U-tube 18, and with the movement of piston, the gas in cylinder 11 enters U-tube, pushes liquid The liquid level of opening end motion to U-tube, open end rises.

The U-tube 18 is equipped with graduation mark far from one end of cylinder 11, can more accurately find out that liquid level rises specific Numerical value rises compared to visual liquid level, and the performance of numerical value is more specific, and also recycling specific value makes related song Line is stated more intuitive.

Liquid in the U-tube 18 is copper-bath, and copper-bath is blue liquid, observes the variation phase of liquid level It is more obvious for water.

The downside of the sunpender 6 be equipped with protractor 19, can by the second winder 7 control iron ball 9 height, then by The initial position of iron ball 9 when the selection special angle of protractor 19, it is more specific clear in the performance of numerical value.

The top of the impingement plate 14 and the top of baffle 4 are in sustained height, and can save impingement plate 14 uses material, at this time root It can guarantee that iron ball 9 can touch impingement plate 14 according to swaying movement regularity.

Baffle 20 is slidably connected on the baffle 4, it is specifically vertical on baffle 4 to be equipped with sliding slot, the baffle 20 It can be slided up and down in sliding slot, and then change the whole height of baffle 4, change iron ball 9 in the case where not adjusting 9 height of iron ball The case where initial position of movement, swing dynamics of the observable iron ball 9 under different swing states.

Working principle: when being demonstrated, the first winder 3 is pulled first, drives baffle 4 close to iron ball 9, then proceedes to Pull until be the initial position of pendulum motion when iron ball 9 will leave baffle 4, pull on the first winder 3, iron ball 9 from It opens baffle 4 and carries out pendulum motion, touch impingement plate 14 and drive slide plate 17 and piston 12 to move to the direction of cylinder 11 later, this When light bulb 15 where the resistance of circuit change, lead to the brightness change of light bulb 15, while the movement of piston 12 makes cylinder Interior gas is moved into U-tube, pushes liquid mobile to the open end of U-tube, and the liquid level of open end rises；By changing iron The height of ball 9 and then the initial position for changing iron ball 9 can make slide plate 17 and the mobile different distance of piston 12, and then light bulb 15 Different degrees of brightness change is generated, different degrees of rising occurs in the liquid level of U-tube, passes through observation 15 brightness change of light bulb The height that degree and liquid level rise can carry out more intuitive impression to the dynamics of swing.

Claims (6)

1. a kind of physics swing dynamics apparatus for demonstrating, it is characterised in that: including pedestal (1), one end of the pedestal (1) is fixed Have first support bar (2), the first support bar (2) is equipped with the first winder (3), slidably connects on the pedestal (1) Baffle (4) is connected with drawstring (5) between first winder (3) and baffle (4), and the top of the first support bar (2) is solid Surely having sunpender (6), the sunpender (6) is equipped with the second winder (7), lifting rope (8) are connected on second winder (7), The other end of the lifting rope (8) is connected with iron ball (9), is fixed with the second support frame (10) on the pedestal (1), described first Support frame and the second support frame (10) are located at the two sides of baffle (4), are fixed with cylinder on second support frame (10) (11), piston (12) are equipped in the cylinder (11), the piston (12) is fixed with connecting rod far from the side of cylinder (11) (13), the connecting rod (13) is fixed with impingement plate (14) far from the one end of piston (12), and the top of the impingement plate (14) is not Lower than the top of baffle (4), the cylinder (11) is equipped with light bulb (15), and one end connection of the light bulb (15) has resistance Slide bar (16) slidably connects slide plate (17) on the resistance slide bar (16), and the slide plate (17) is fixed on connecting rod (13), The other end connection of the slide plate (17) and light bulb (15), the cylinder (11) are communicated with far from the one end of piston (12) U-tube (18), the other end opening of the U-tube (18), the U-tube (18) is interior to fill liquid.

2. a kind of physics swing dynamics apparatus for demonstrating according to claim 1, it is characterised in that: the U-tube (18) is remote One end from cylinder (11) is equipped with graduation mark.

3. a kind of physics swing dynamics apparatus for demonstrating according to claim 1, it is characterised in that: in the U-tube (18) Liquid be copper-bath.

4. a kind of physics swing dynamics apparatus for demonstrating according to claim 1, it is characterised in that: under the sunpender (6) Side is equipped with protractor (19).

5. a kind of physics swing dynamics apparatus for demonstrating according to claim 1, it is characterised in that: the impingement plate (14) The top of top and baffle (4) is in sustained height.

6. a kind of physics swing dynamics apparatus for demonstrating according to claim 1, it is characterised in that: sliding on the baffle (4) It is dynamic to be connected with baffle (20).