Curvilinear motion speed and direction tester

Abstract

The utility model relates to an experiment teaching aid, in particular to a curvilinear motion speed and direction tester which comprises a flat plate and a ball moving on the flat plate, a ball launching device is arranged on one side of the flat plate, a motion track for the ball to move is arranged on the flat plate, and the motion track comprises a first section of arc, and a first opening is formed in the middle of the first section of arc. A detachable first baffle with the same radian as the first section of arc is arranged at the first opening, a first containing groove for containing the ball is formed in the outer side of the first opening, and the opening of the first containing groove is larger than the movement tangential direction of the ball. The planar curvilinear motion is adopted to eliminate the influence of the gravity effect, and the planar teaching aid with a simple structure can meet the requirement of one student; multiple experiment effects can be obtained during one-time launching by adopting multiple groups of connecting rails, and the movement effect of each section of arc can be self-defined, disassembled and self-defined by adopting multiple groups of notches; the launching device adopts a button form to ensure that the initial motion potential energy of the ball is approximate in each launching process.

Description

Technical Field

[0001] The utility model relates to a demonstration tester, especially a tester for the direction of the velocity of curvilinear motion. Background Art

[0002] Teaching aids are particularly important for demonstrating functional principles. Many physical experiment demonstration structures are complex, difficult to assemble, inconvenient to store and transport, wasting teaching time. For example, the utility model patent of a demonstration instrument for the direction of curvilinear motion with the publication number of CN2798219Y uses the form of a roller coaster to set gaps in the track. During the experiment, the small ball is easy to fall and be lost, and the track must be made of metal, which is easy to rust and is very inconvenient to fall off and damage. Content of the Utility Model

[0003] In order to solve the above deficiencies of the existing curvilinear motion demonstration, the utility model provides an experimental device for the direction of the velocity of curvilinear motion that is convenient to demonstrate, low in cost, and simple to assemble.

[0004] The beneficial effects of the utility model are as follows: The use of planar curvilinear motion excludes the influence of gravity. The simple planar teaching aids can meet the needs of each student to have one. The use of multiple sets of connecting tracks can obtain multiple experimental effects in one launch. The use of multiple sets of gaps can be disassembled customarily and the motion effects of each arc can be customized. The launch device uses a button form to ensure that the initial motion potential energy of the ball is close each time during the launch process.

[0005] The technical solution adopted by the utility model is: An experimental device for the direction of the velocity of curvilinear motion, including a flat plate and a ball moving on the flat plate. A ball launch device is provided on one side of the flat plate. A motion track for the ball to move is provided on the flat plate. The motion track includes a first arc. A first opening is provided in the middle of the first arc. A first baffle with the same radian as the first arc is provided at the first opening and is detachable. A first receiving groove for receiving the ball is provided outside the first opening. The opening of the first receiving groove is larger than the tangential direction of the ball movement.

[0006] As one of the preferred solutions of an experimental device for the direction of the velocity of curvilinear motion, a second arc is further provided at the end of the first arc. A second opening is provided at the position where the small ball enters the second arc. A second baffle with the same radian as the second arc is provided at the second opening. The second arc can be in the opposite direction to the first arc to better layout the track space on the flat plate.

[0007] As one of the preferred solutions of an experimental device for the direction of the velocity of curvilinear motion, a third opening is further provided on the second arc. A third baffle with the same radian as the second arc is provided at the third opening. Chute grooves are provided on both sides of the fixing positions of the first baffle, the second baffle, and the third baffle. Slide pieces slidably arranged in the chute grooves are provided on both sides of the first baffle, the second baffle, and the third baffle. Reinforcing pieces perpendicular to the arc direction are provided on the sides of the first baffle, the second baffle, and the third baffle.

[0008] As one of the preferred embodiments of an experimental device for the direction of the velocity of curvilinear motion, it further includes a third arc connected to the rear end of the second arc. A second receiving groove is provided at the end of the third arc, and the opening of the second receiving groove expands outward along the arc direction to avoid obstructing the movement of the spherical ball. An engaging groove for limiting the movement of the spherical ball is provided in and / or on the second receiving groove.

[0009] As one of the preferred embodiments of an experimental device for the direction of the velocity of curvilinear motion, it further includes four adjusting feet pads provided around the flat plate for adjusting the balance.

[0010] As one of the preferred embodiments of an experimental device for the direction of the velocity of curvilinear motion, the launching device is arranged at the starting point of the motion track. The launching device includes a push rod, a spring, and a locking plate. The spring is sleeved on the push rod and acts on the push rod to make the push rod have a tendency to impact the spherical ball. A first opening is provided in the middle of the locking plate, and at least one notch for clamping the inner edge of the first opening of the locking plate is provided on the push rod. After pulling the push rod backward, the locking plate is clamped in the notch to maintain the spring potential energy. It further includes a cover plate covering the launching device, and a second opening for the locking plate to extend out is provided on the cover plate.

[0011] As one of the preferred embodiments of an experimental device for the direction of the velocity of curvilinear motion, it further includes a placement groove for placing the spherical ball. Description of the Drawings

[0012] Figure 1 Isometric view of the present utility model

[0013] Figure 2 Isometric view of the disassembled baffle of the present utility model.

[0014] Figure 3 Isometric view of the launching device of the present utility model.

[0015] Figure 4 Isometric view of the launching device of the present utility model.

[0016] Wherein: 1, flat plate; 2, spherical ball; 3, launching device; 4, motion track; 41, first arc; 411, first opening; 412, first baffle; 44, first receiving groove; 42, second arc; 421 second opening; 422, second baffle; 423, third opening; 424, third baffle; 43, third arc; 45, second receiving groove; 46, engaging groove; 5, foot pad; 31, push rod; 32, spring; 33, locking plate; 332, notch; 333, cover plate; 331, first opening; 334, second opening; 11, sliding groove; 12, sliding piece; 13, reinforcing piece. Detailed Embodiments

[0017] To make the objectives, technical solutions, and advantages of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Listing the technical features in all dependent claims in a certain embodiment does not mean that this part is an essential technical feature. In this embodiment, it is for simply and clearly describing the technical solution. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. The following further describes the present utility model with reference to specific drawings.

[0018] As Figures 1 to 4 shown: As Figures 1 to 4 shown: A curve motion speed direction experimenter includes a flat plate 1 and a spherical ball 2 moving on the flat plate 1. A spherical ball 2 launching device 3 is provided on one side of the flat plate 1. A motion track 4 for the spherical ball 2 to move is provided on the flat plate 1. The motion track 4 includes a first arc 41. A first opening 411 is provided in the middle of the first arc 41. A first baffle 412 with the same radian as the first arc 41 is detachably provided at the first opening 411. A first receiving groove 44 for accommodating the spherical ball 2 is provided outside the first opening 411. The opening of the first receiving groove 44 is larger than the tangential direction of the movement of the spherical ball 2. It also includes four adjustment foot pads 5 provided around the flat plate 1 for adjusting balance.

[0019] For the convenience of demonstration and to achieve the effect comparison of multiple different situations in one ejection, a second arc 42 is further provided at the end of the first arc 41. In this device, the second arc 42 is arranged in the opposite direction to the first arc. A second opening 421 is provided at the position where the small ball enters the second arc 42. A second baffle 422 with the same radian as the second arc 42 is provided at the second opening 421.

[0020] In this embodiment, a third opening 423 is further provided on the second arc 42. A third baffle 424 with the same radian as the second arc 42 is provided at the third opening 423. The third opening 423 is connected to the first receiving groove 44. Chute grooves 11 are provided on both sides of the fixed positions of the first baffle 412, the second baffle 422, and the third baffle 424. Slide pieces 12 slidably arranged in the chute grooves are provided on both sides of the first baffle 412, the second baffle 422, and the third baffle 424. Reinforcing pieces 13 perpendicular to the arc direction are provided on the sides of the first baffle 412, the second baffle 422, and the third baffle 424.

[0021] In this embodiment, it further includes a third arc 43 connected to the rear end of the second arc 42. A second receiving groove 45 is provided at the end of the third arc 43. The opening of the second receiving groove 45 expands outward along the arc direction to avoid obstructing the movement of the ball 2. An engaging groove 46 for limiting the movement of the ball 2 is provided in the first receiving groove 44 and / or the second receiving groove 45.

[0022] To ensure the same potential energy for each launch and the same experimental effect for each experiment, the launching device 3 is operated. The launching device 3 is arranged at the starting point of the moving track 4. The launching device 3 includes a push rod 31, a spring 32, and a locking plate 33. The spring 32 is sleeved on the push rod 31 and acts on the push rod 31 to make the push rod 31 have a movement tendency to impact the ball 2. A first opening 331 is provided in the middle of the locking plate 33. Three notches 332 are provided on the push rod 31 for clamping the inner edge of the first opening 331 of the locking plate 33. The notches are arranged at the bottom of the push rod. A spring for moving the locking plate upward is provided at the lower end of the locking plate. Any one of the notches can be selected for the experiment according to the situation during the experiment. After pulling the push rod 31 backward, the locking plate 33 is clamped in the notch 332 to maintain the potential energy of the spring 32. It further includes a cover plate 333 covering the launching device 3. A second opening 334 for the locking plate 33 to extend out is provided on the cover plate 333. When demonstrating, the push rod can be pressed to limit the push rod by the locking plate, and when in use, the locking plate is pressed to release the push rod.

[0023] As an improvement to the launching device in the above embodiment, refer to Figure 3 The end of the push rod is bent upward to form a handle (311). A slot (335) for the handle to slide is provided on the cover plate. The push rod can be pulled back directly by pulling the handle.

[0024] Only one embodiment of the present application is shown above. Any third party can make routine modifications and replacements according to the solution shown in the present application, such as changing the arc length and changing the arc direction. It should be understood that it is still within the protection scope of the present application.

Claims

1. Curve motion velocity direction experimenter, including a flat plate (1) and a spherical ball (2) moving on the flat plate (1), a spherical ball (2) launching device (3) is arranged on one side of the flat plate (1), and it is characterized in that: The flat plate (1) is provided with a movement track (4) for the movement of the spherical ball (2). The movement track (4) includes a first arc (41). A first opening (411) is provided in the middle of the first arc (41). At the first opening (411), a first baffle plate (412) which is detachably the same as the radian of the first arc (41) is provided. A first receiving groove (44) for receiving the spherical ball (2) is provided outside the first opening (411). The opening of the first receiving groove (44) is larger than the tangential direction of the movement of the spherical ball (2).

2. The curve motion speed direction experimenter according to claim 1, characterized in that: A second arc (42) is further provided at the end of the first arc (41). A second opening (421) is provided at the position where the small ball enters the second arc (42). At the second opening (421), a second baffle plate (422) which is the same as the radian of the second arc (42) is provided.

3. The curve motion speed direction experimenter according to claim 2, characterized in that: A third opening (423) is further provided on the second arc (42). At the third opening (423), a third baffle plate (424) which is the same as the radian of the second arc (42) is provided.

4. The curve motion speed direction experimenter according to claim 3, characterized in that: Chute grooves (11) are provided on both sides of the fixed positions of the first baffle plate (412), the second baffle plate (422), and the third baffle plate (424). Slide pieces (12) which are slidably arranged in the chute grooves (11) are provided on both sides of the first baffle plate (412), the second baffle plate (422), and the third baffle plate (424). Reinforcing pieces (13) perpendicular to the arc direction are provided on the sides of the first baffle plate (412), the second baffle plate (422), and the third baffle plate (424).

5. The curve motion speed direction experimenter according to claim 2 or 3, characterized in that: It further includes a third arc (43) connected to the rear end of the second arc (42). A second receiving groove (45) is provided at the end of the third arc (43). The opening of the second receiving groove (45) expands outward along the arc direction to avoid hindering the movement of the spherical ball (2).

6. The curve motion speed direction experimenter according to claim 5, characterized in that: Chamfered grooves (46) for limiting the movement of the spherical ball (2) are provided in the first receiving groove (44) and / or the second receiving groove (45).

7. The experimental device for the direction of the velocity of curvilinear motion according to claim 1, wherein: It further includes four adjusting feet pads (5) provided around the flat plate (1) for adjusting the balance.

8. The experimental device for the direction of the velocity of curvilinear motion according to claim 1, wherein: The launching device (3) is arranged at the starting point of the movement track (4). The launching device (3) includes a push rod (31), a spring (32), and a locking plate (33). The spring (32) is sleeved on the push rod (31) and acts on the push rod (31) to make the push rod (31) have a movement tendency to impact the spherical ball (2). A first opening (331) is provided in the middle of the locking plate (33). At least one notch (332) for clamping the inner edge of the first opening (331) of the locking plate (33) is provided on the push rod (31). After the push rod (31) is pulled backward, the locking plate (33) is clamped in the notch (332) to maintain the potential energy of the spring (32). It further includes a cover plate (333) covering the launching device (3). A second opening (334) for the locking plate (33) to extend out is provided on the cover plate (333).

9. The curve motion speed direction experimenter according to claim 8, characterized in that: The end of the push rod is bent upward to form a handle (311). A slot (335) for the handle to slide is provided on the cover plate.

10. The curve motion speed direction experimenter according to claim 1, characterized in that: It further includes a placing groove for placing the spherical ball.

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