CN112331039A

CN112331039A - Multifunctional horizontal projectile motion tester

Info

Publication number: CN112331039A
Application number: CN202011294557.2A
Authority: CN
Inventors: 吴松轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-02-05

Abstract

The invention discloses a multifunctional horizontal projectile motion tester which comprises a base, a display panel and a display screen, wherein the surface of the display panel is positioned at the lower end of a small ball slideway and is rotatably connected with a vertical separation blade, the surface of the display panel is rotatably connected with a horizontal separation blade at the horizontal level with the lower end of the small ball slideway, the upper ends of the small ball slideway and the small ball slideway are respectively provided with a stop lever used for limiting the movement of a small ball, the back of the display panel is provided with a hollow support column matched with the stop lever, the stop lever extends out of the back of the display panel and is integrally connected with a limiting block at the end part, a spring is connected between the back of the display panel and the limiting block on the stop lever, the back of the display panel is rotatably connected with a linkage rod through a rotating shaft, and the linkage rod is provided with an arc groove of a first limiting hook rod and. Compared with the prior art, the invention has the advantages that: can well demonstrate the motion law of the horizontal projectile motion and is convenient for collecting the small balls.

Description

Multifunctional horizontal projectile motion tester

Technical Field

The invention relates to a physical experiment device, in particular to a multifunctional horizontal projectile motion tester.

Background

In a physical experiment device, particularly a mechanical experiment device, the motion law of horizontal projectile motion is often required to be demonstrated. It is known that in projectile motion there is a special case where the initial velocity direction of the object when it is thrown is horizontal, i.e. the object has a horizontal initial velocity, and the curvilinear motion made by gravity alone is called horizontal projectile motion. When analyzing the horizontal projectile motion, the horizontal projectile motion can be decomposed into two partial motions in the horizontal direction and the vertical direction. The motion in the horizontal direction is uniform linear motion, and the motion in the vertical direction is free-fall motion. In order to research the law of horizontal projectile motion, describe the motion trail of a horizontal projectile object and verify that the horizontal projectile motion is the composite motion of horizontal forward uniform linear motion and vertical downward free falling body motion in physical teaching, a plurality of experimental devices are available, but the experimental devices have advantages and disadvantages respectively.

The existing flat projectile motion demonstration instrument has the main defects that only one small ball is used for a projectile body, the movement time of the projectile body is short, the speed is high, students cannot see the movement track of the projectile body completely, most of the existing demonstration instruments cannot show the track of the flat projectile motion, although the existing flat projectile motion demonstration instrument uses a magnetic sucking and releasing piece, a sucking and releasing projectile body and translation instead of rolling, when an object makes flat projectile motion, a pen point fixed on the projectile body is in soft contact with coordinate paper of a steel track recording panel, and a clear movement track is automatically and accurately described at one time. However, the demonstration instrument gives students the feeling that the projectile makes translational motion and the projectile in the imagination of the students is not very same, and the same demonstration instrument gives students too short observation time due to too high projectile motion speed, and the students can not map the translational motion deeply.

If the sensor technology is used for obtaining accurate time measurement during projectile motion, the time value of small ball motion can be recorded, the measured time value data is displayed, and the combination of teaching experiments and a computer is realized. However, the invention still does not solve the problem of projectile motion trajectory presentation, and students' knowledge of projectile motion trajectories still can be obtained through theoretical analysis of teachers. The teacher can only go through the traditional methods of multimedia courseware or stroboscopic photographs in order to present the trajectory of the projectile to the student. Therefore, the above methods can not make students intuitively know the movement characteristics of the horizontal projectile motion, and the images of the students are not deeply reflected by the demonstration instrument.

And current test instrument is not convenient for collect the bobble, and the bobble of high-speed motion usually can bounce off under the effect of gravity when falling on the base, not only influences the teaching progress, still can cause the loss of bobble, causes the difficulty and the waste of accomodating.

Disclosure of Invention

The invention aims to overcome the technical defects and provide a multifunctional flat projectile motion tester, so that a demonstration instrument can well demonstrate the motion law of flat projectile motion, students can see that the projectile of the flat projectile motion is a small ball and is consistent with the projectile in the imagination of the students, and can see that the track of the projectile motion is a parabola, thereby being convenient for analyzing the law and the motion track of the flat projectile motion and collecting the small balls.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a multifunctional flat projectile motion tester comprises a base, a display panel and a display screen, wherein a small ball slideway I is fixedly arranged at the upper end of one side of the display panel, a small ball slideway II is fixedly arranged at the lower end of the small ball slideway I, the surface of the display panel is rotatably connected with a vertical separation blade, a horizontal separation blade is rotatably connected with the horizontal parallel and level position of the lower end of the small ball slideway I, a limit groove matched with the horizontal separation blade is arranged on the display panel, stop rods used for limiting the movement of the small ball are respectively arranged at the upper ends of the small ball slideway I and the small ball slideway II, hollow support columns matched with the stop rods are arranged at the back of the display panel, the stop rods extend out of the back of the display panel and are integrally connected with limit blocks at the end parts, springs are connected between the back of the display panel and the limit blocks on the stop, the upper end and the lower extreme of hollow support column all be equipped with shelves pole matched with vertical through-hole, the display panel back rotate through the pivot and be connected with the gangbar, vertical separation blade rotate through one the coupler rod and connect on the display panel, horizontal separation blade rotate through two the coupler rod and connect on the display panel, the gangbar on be equipped with the spacing hole of spacing hook rod one's arc groove and spacing hook rod two.

Furthermore, the base is provided with a positioning bolt for fixing on the table-board.

Furthermore, the ball slideway two are located under the ball slideway one, and the ball slideway one and the ball slideway two have the same shape and both comprise an arc part and a straight part.

Furthermore, the middle of the hollow support column is provided with a vertical mounting hole, and the hollow support column is mounted on the back of the display panel through a limiting bolt penetrating through the vertical mounting hole.

Furthermore, the upper end of the hollow support column is connected with a pressing block, and the pressing block is made of flexible materials.

Furthermore, the base on be equipped with the through-hole, through-hole department is connected with the sponge string bag.

Furthermore, the display screen is rotatably connected to the outer side of the display panel through a hinge.

Further, the base outside be equipped with the bend slide rail, the bend slide rail on slidable mounting have the shooting device, the shooting device include the horizontal support pole of sliding connection bend slide rail, rotate the vertical support pole of connecting in the horizontal support pole outer end and rotate the high-speed camera of connecting in the vertical support pole upper end, the slow-speed camera picture of shooting be present on the display screen, horizontal support pole and vertical support pole be adjustable telescopic link.

Compared with the prior art, the invention has the advantages that: the invention can well present the motion rules of horizontal projectile motion, vertical motion, horizontal motion or combination thereof on the display screen through the expression form of the slow lens through the linkage rod and the high-speed camera, so that students can see that the projectile body of the horizontal projectile motion is a small ball and is consistent with the projectile body in imagination of the students, and can also see that the trajectory of the projectile body motion is a parabola, and can also record the intersection of the small balls of the horizontal projectile motion and the vertical motion, and the sponge string bag arranged on the base can not only prevent the falling small balls from bouncing off, but also can well collect the small balls, thereby being convenient for next use.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of a part of the structure of the present invention from above.

Fig. 3 is a rear view structure diagram of the present invention.

As shown in the figure: 1. the display screen comprises a base, 2, a display panel, 3, a display screen, 4, a first small ball slide way, 5, a second small ball slide way, 6, a vertical blocking piece, 7, a horizontal blocking piece, 8, a limiting groove, 9, a blocking rod, 10, a hollow supporting column, 11, a spring, 12, a vertical through hole, 13, a linkage rod, 14, a first hook rod, 15, a second hook rod, 16, an arc groove, 17, a limiting hole, 18, a positioning bolt, 19, a vertical mounting hole, 20, a limiting bolt, 21, a pressing block, 22, a sponge string bag, 23, a curve slide rail, 24, a horizontal supporting rod, 25, a vertical supporting rod, 26 and a high-speed camera.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A multifunctional flat throw motion tester comprises a base 1, a display panel 2 and a display screen 3, wherein the upper end of one side of the display panel 2 is fixedly provided with a small ball slideway 4, the lower end of the display panel 2 is fixedly provided with a small ball slideway two 5, the lower end of the small ball slideway 4 on the surface of the display panel 2 is rotatably connected with a vertical catch 6, the horizontal level part of the lower end of the small ball slideway 4 on the surface of the display panel 2 is rotatably connected with a horizontal catch 7, the display panel 2 is provided with a limit groove 8 matched with the horizontal catch 7, the upper ends of the small ball slideway 4 and the small ball slideway two 5 are respectively provided with a stop lever 9 used for limiting the movement of a small ball, the back of the display panel 2 is provided with a hollow support column 10 matched with the stop lever 9, the stop lever 9 extends out of the back of the display panel 2 and is integrally connected with a limit block at the end, the stop lever 9 is connected with a spring, the upper end and the lower extreme of hollow support column 10 all be equipped with shelves pole 9 matched with vertical through-hole 12, 2 backs of show panel rotate through the pivot and be connected with gangbar 13, vertical separation blade 6 rotate through a hooked pole 14 and connect on show panel 2, horizontal separation blade 7 rotate through two 15 of hooked poles and connect on show panel 2, gangbar 13 on be equipped with spacing hook rod 14's arc groove 16 and spacing hole 17 of two 15 of spacing hook poles.

The base 1 is provided with a positioning bolt 18 for fixing on the table-board.

The second small ball slide way 5 is positioned right below the first small ball slide way 4, and the first small ball slide way 4 and the second small ball slide way 5 are identical in shape and respectively comprise an arc-shaped part and a flat straight part.

The middle of the hollow support column 10 is provided with a vertical mounting hole 19, and the hollow support column 10 is mounted on the back of the display panel 2 through a limit bolt 20 penetrating through the vertical mounting hole 19.

The upper end of the hollow support column 10 is connected with a pressing block 21, and the pressing block 21 is made of flexible materials.

The base 1 on be equipped with the through-hole, through-hole department is connected with sponge string bag 22.

The display panel 2 is connected with the display screen 3 through a hinge in a rotating way.

Base 1 outside be equipped with bend slide rail 23, bend slide rail 23 on slidable mounting have the shooting device, the shooting device include the horizontal support pole 24 of sliding connection bend slide rail 23, rotate the vertical support pole 25 of connecting in the 24 outer ends of horizontal support pole and rotate the high-speed camera 26 of connecting in the vertical support pole 25 upper end, the slow-speed camera 26 shoot the slow-speed lens picture be now on display screen 3, horizontal support pole 24 and vertical support pole 25 be adjustable telescopic link.

When the invention is implemented in detail, when the horizontal throwing movement and the vertical movement are carried out, the limiting block at the rear end of the blocking rod is extruded on the inner wall of the hollow support column through the action of the spring, so that the front end of the blocking rod can block a small ball at the upper end of the small ball slideway, the first hooking rod and the second hooking rod are respectively hooked on the linkage rod at the back of the display panel, the shooting device is moved to the front of the display panel, the lengths of the horizontal support rod and the vertical support rod are adjusted, the high-speed camera is convenient to shoot, the small ball is put into the upper end of the small ball slideway and is blocked by the blocking rod, the small ball is put into the limiting groove and the horizontal blocking piece, the high-speed camera is started, the pressing block is pressed down, the limiting block connected with the blocking rod is ejected out under the action of the spring, the front end of the blocking rod is contracted to enable the small ball to slide down along the arc part, when the small, the hook rod I slides out of the arc groove of the linkage rod, so that the hook rod II is driven to simultaneously slide out of the linkage rod, the horizontal blocking piece is driven to rotate downwards to enable the small balls to fall down simultaneously, the slow lens pictures shot by the high-speed camera are displayed on the display screen, the falling small balls fall into the sponge net bag and cannot be popped out, and the small balls are convenient to collect.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a multi-functional flat throw motion tester which characterized in that: comprises a base (1), a display panel (2) and a display screen (3), wherein the upper end of one side of the display panel (2) is fixedly provided with a ball slideway I (4), the lower end of the display panel (2) is fixedly provided with a ball slideway II (5), the lower end of the surface of the display panel (2) is positioned at the ball slideway I (4) and is rotatably connected with a vertical baffle (6), the surface of the display panel (2) is rotatably connected with a horizontal baffle (7) at the horizontal parallel and level position of the lower end of the ball slideway I (4), the display panel (2) is provided with a limiting groove (8) matched with the horizontal baffle (7), the upper ends of the slideway I (4) and the ball slideway II (5) are respectively provided with a small ball rod (9) used for limiting the movement of the ball, the back surface of the display panel (2) is provided with a hollow supporting column (10) matched with the small ball rod (9), the small ball rod (9) extends out from the back, the utility model discloses a show panel (2) with the stopper, link rod (9) on lie in and be connected with spring (11) between show panel (2) the back and the stopper, upper end and the lower extreme of hollow support post (10) all be equipped with link rod (9) matched with vertical through-hole (12), show panel (2) the back rotate through the pivot and be connected with gangbar (13), vertical separation blade (6) rotate through coupler rod one (14) and connect on show panel (2), horizontal separation blade (7) rotate through coupler rod two (15) and connect on show panel (2), gangbar (13) on be equipped with spacing hole (17) of arc groove (16) and spacing coupler rod two (15) of spacing coupler rod one (14).

2. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the base (1) is provided with a positioning bolt (18) for fixing on the table-board.

3. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the ball slideway II (5) is positioned under the ball slideway I (4), and the ball slideway I (4) and the ball slideway II (5) have the same shape and both comprise an arc part and a flat part.

4. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the display panel is characterized in that a vertical mounting hole (19) is formed in the middle of the hollow supporting column (10), and the hollow supporting column (10) is mounted on the back face of the display panel (2) through a limiting bolt (20) penetrating through the vertical mounting hole (19).

5. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the upper end of the hollow supporting column (10) is connected with a pressing block (21), and the pressing block (21) is made of flexible materials.

6. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the base (1) on be equipped with the through-hole, through-hole department is connected with sponge string bag (22).

7. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: the display panel (2) is connected with the display screen (3) through a hinge in a rotating way.

8. The multifunctional horizontal projectile motion tester as recited in claim 1, wherein: base (1) outside be equipped with bend slide rail (23), bend slide rail (23) on slidable mounting have the shooting device, the shooting device include horizontal support pole (24) of sliding connection bend slide rail (23), rotate vertical support pole (25) of connecting in horizontal support pole (24) outer end and rotate high-speed camera (26) of connecting in vertical support pole (25) upper end, high-speed camera (26) the slow-speed lens picture of shooing present on display screen (3), horizontal support pole (24) and vertical support pole (25) be adjustable telescopic link.