WO2022104892A1

WO2022104892A1 - Display model for circulating motion of carrying spherical object

Info

Publication number: WO2022104892A1
Application number: PCT/CN2020/132486
Authority: WO
Inventors: 王瑞; 陈文强
Original assignee: 唐山维数科技有限公司
Priority date: 2020-11-19
Filing date: 2020-11-27
Publication date: 2022-05-27

Abstract

A display model for circulating motion of a carrying spherical object, comprising a bracket assembly (1) comprising a display panel (12); a plurality of sets of fixing support members (2) fixedly mounted on the display panel (12), the heights of the plurality of sets of fixing support members (2) sequentially and gradually changing; a first guide rod (3) located above the plurality of sets of fixing support members (2); a second guide rod (4), one end of which is adjacent to a set of fixing support members among the plurality of sets of fixing support members (2) located on the outermost side; a pushing member assembly (5) movably mounted on the display panel (12); and a cam mechanism (6) rotatably mounted on the display panel (12) by means of an eccentric shaft (60) and used for pushing the pushing member assembly (5) to move up and down. The display model visually presents the principle of realizing the circulating motion of a sphere by using the eccentric mechanism, the cam mechanism, and the dead weight of the sphere, thereby helping to understand and learn related physical knowledge.

Description

A display model carrying the cyclic motion of spherical objects

【Technical field】

The invention relates to the fields of teaching tools, models and toys, in particular to a display model for carrying spherical objects in circular motion.

【Background technique】

Motion is a central concept in physics. In physics, motion is the change in the relative position of an object in space over time, we refer to the change in the position of an object relative to another object or the position of some parts of an object relative to other parts over time The process is called mechanical movement.

Eccentric wheel mechanism and cam mechanism are two kinds of mechanisms commonly used in mechanical motion. The eccentric wheel means that the rotation point of the wheel is not on the center of the circle, but rotates with other points in the circle as the rotation point. Eccentric wheel is a kind of cam, and its main purpose is to generate vibration or cooperate with other mechanisms to form reciprocating motion, such as electric sieves, vibration motors in mobile phones, etc. The cam generally forms a cam mechanism with the follower. Similar to the eccentric mechanism, the cam mechanism also converts continuous rotational motion into reciprocating linear motion, which can realize complex motion laws.

However, in the existing teaching related to mechanical motion, most of the above-mentioned motion laws are displayed in the form of drawings, photos or videos, and there is a lack of corresponding teaching motion models for students to observe and experience. Therefore, it is necessary to develop a kind of motion model. A model showing the laws of motion, which intuitively presents various mechanisms and the laws of motion realized by the kinematic system composed of these mechanisms.

[Content of the invention]

The present invention provides a display model for carrying the cyclic motion of spherical objects, which can intuitively present the cyclic motion principle of spherical objects.

According to the display model for carrying the cyclic movement of spherical objects proposed by the present invention, it includes a bracket assembly, and the bracket assembly includes a display board; a plurality of sets of fixed supports, which are fixedly installed on the display board and are arranged at equal intervals, and the plurality of sets of fixed supports The heights of the supports gradually change in sequence, and each set of fixed supports includes at least one fixed support element; a first guide rod, which is fixedly installed on the display board, and located above the plurality of sets of fixed supports; a second guide rod, which is fixed It is installed on the display board, and is located below the first guide rod and on one side of the fixed support member, and one end of the second guide rod is adjacent to the outermost set of fixed support members among the plurality of sets of fixed support members; the combination of the push members, It is movably installed on the display board, the pusher combination includes at least one pusher, the pusher includes a horizontal bar and a plurality of vertical bars, the plurality of vertical bars are vertically connected to one side of the horizontal bar, and the height of the plurality of vertical bars is Change gradually, in the assembled state, the vertical rod can move up and down in the interval between the adjacent two sets of fixed supports; the cam mechanism, the cam mechanism is rotatably installed on the display board through the eccentric shaft, and is located on the pusher Below the combination, it is used to push the pusher combination to move up and down.

In one embodiment, the height variation trend of the plurality of vertical rods is consistent with the height variation trend of the plurality of sets of fixed supports.

In one embodiment, the top surface of the fixed support element is an inclined surface, the top surfaces of the vertical rods other than the outermost vertical rod among the plurality of vertical rods are inclined surfaces, and the inclined direction of the inclined surface of the vertical rod and the inclined surface of the fixed support element is Consistent and contrary to the trend of height change.

In one embodiment, the first guide rod is located above the pusher assembly and is inclined, and the inclination direction of the first guide rod is consistent with the height change trend; when the pusher assembly moves upward to the highest position, the first guide rod One end abuts the top surface of the outermost vertical rod.

In one embodiment, the second guide rod is shorter than the first guide rod, the second guide rod is inclined, and the inclination direction of the second guide rod is opposite to the inclination direction of the first guide rod.

In one embodiment, the display model further includes a first baffle plate, which is arranged on one side of the display board and is close to the side where the height variation trend reaches the highest height, for blocking the small balls and preventing the small balls from leaving the display model.

In one embodiment, the display model further includes a second baffle plate, which is disposed above the end of the second guide rod away from the fixed support, and, in the vertical direction, the upper end of the second baffle plate exceeds the adjacent first baffle plate. one end of a guide rod.

In one embodiment, each set of fixed supports includes a plurality of fixed support elements, and the plurality of fixed support elements are arranged in an overlapping manner, and the pusher combination includes a plurality of pushers, and the plurality of pushers are arranged in an overlapping manner.

In one embodiment, the cam mechanism includes a plurality of cam pieces, the plurality of cam pieces are arranged overlappingly, and an operating handle is provided on the cam mechanism for manually rotating the cam mechanism.

The display model for carrying the cyclic motion of the spherical object of the present invention intuitively presents the principle of using the eccentric mechanism, the cam mechanism, the pushing mechanism, and the self-weight of the spherical object to realize the circular motion of the spherical object. The user can manually operate the display model to experience and observe The motion relationship and motion law of each mechanism is to help users understand and learn the physical knowledge related to eccentric motion, cam mechanism and reciprocating motion.

【Description of drawings】

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 is a schematic diagram of a display model for carrying a cyclic motion of a spherical object according to a preferred embodiment of the present invention;

Figure 2 is a schematic diagram of the bracket assembly of the model shown in Figure 1;

Fig. 3 is another schematic view of the stand assembly of the model shown in Fig. 1 with the display plate of the stand assembly removed.

Fig. 4a is the schematic diagram showing the motion state one of the model in Fig. 1;

Fig. 4b is a schematic diagram showing motion state two of the model in Fig. 1;

Fig. 4c is a schematic diagram showing motion state three of the model in Fig. 1;

FIG. 4d is a schematic diagram showing motion state four of the model shown in FIG. 1 .

In the attached picture:

100 is the display model, 1 is the bracket assembly, 2 is the fixed support, 3 is the first guide rod, 4 is the second guide rod, 5 is the pusher combination, 6 is the cam mechanism, 7 is the first baffle, 8 is the The second baffle, 10 is a small ball, 11 is a bottom plate, 12 is a display board, 13 is a support plate, 14 is a connecting plate, 20 is a fixed support element, 50 is a pusher, 51 is a horizontal bar, 52 is a vertical bar, 60 is the eccentric shaft, 61 is the cam piece, 62 is the operating handle, 110 is the edge of the bottom plate, 120 is the hole, 131 is the right angle side, 132 is the hypotenuse, 133 is the protrusion, 200 is the inclined surface of the fixed support element, 520 is the vertical the slope of the rod.

【Detailed ways】

The technical solutions of the present invention will be more clearly and completely described below through the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

As shown in FIG. 1 , a display model 100 for carrying a spherical object cyclic motion according to a preferred embodiment of the present invention includes: a bracket assembly 1 , a plurality of sets of fixed supports 2 , a first guide rod 3 , a second conductor 4 , and a combination of pushers 5 and cam mechanism 6.

As shown in FIGS. 2 and 3 , the bracket assembly 1 includes: a bottom plate 11 , a display plate 12 , a pair of support plates 13 and a connecting plate 14 . The bottom plate 11 is used for contact with the table top or other support. A pair of support plates 13 have the same structure and are mounted on both ends of the bottom plate 11, respectively. In this embodiment, the support plate 13 is a right triangle, a right side 131 of the right triangle contacts and connects with the bottom plate 11 , and one end of the hypotenuse 132 of the right triangle extends to one side edge 110 of the bottom plate 11 . The connection plate 14 is connected between the pair of support plates 13 . The bottom edge of the display board 12 is connected with the edge 110 of the aforementioned bottom plate 11 through protrusions and grooves, and the back surface of the display board 12 is connected with the hypotenuse 132 of the right triangle. A hole 120 is opened on the 12 , and the protrusion 133 is inserted into the hole 120 , thereby connecting the display board 12 to the support board 13 . Since the display board 12 is connected with the oblique side 132 of the support board, the display board 12 is in an inclined state.

A plurality of sets of fixed supports 2 are fixedly mounted on the display board 12 and are arranged at equal intervals. Each set of fixed supports 2 comprises at least one fixed support element 20 . In this embodiment, each set of fixed supports 2 includes a plurality of fixed support elements 20, and the plurality of fixed support elements 20 are arranged in an overlapping manner. Each group of fixed supports 2 has different heights, and their heights gradually change in sequence, and become larger or smaller in sequence. In the present embodiment, the plurality of sets of fixed supports 2 gradually increase in height from the left side to the right side of the display model shown in FIG. 1 . The fixed support elements 20 of the same group have the same height.

The top surface of the fixed support element 20 is an inclined surface 200, and the inclined direction of the inclined surface 200 is opposite to the changing trend of the heights of the plurality of sets of fixed supports 2, that is, the heights of the multiple sets of fixed supports 2 gradually increase from left to right. The height change trend is inclined toward the upper right of the display model 100 , and the inclination direction of the inclined plane 200 is inclined to extend toward the lower right of the display model 100 .

The first guide rod 3 is fixedly mounted on the display board 12 and is located above the plurality of sets of fixed supports 2 . Specifically, the first guide rod 3 is obliquely disposed on the display board 12 , and the inclination direction thereof is consistent with the changing trend of the heights of the plurality of sets of fixed supports 2 .

The second guide rod 4 is fixedly mounted on the display board 12 and is located on one side of the plurality of sets of fixed supports 2 and below the first guide rod 12 . Specifically, the second guide rod 4 is shorter than the first guide rod 3 , which is obliquely disposed on the display board 12 , and its inclination direction is opposite to that of the first guide rod 4 , and is opposite to the inclination of the inclined surface 200 of the fixed support member 20 . the same direction. One end of the second guide rod 4 is in abutment with the outermost set of fixed supports among the plurality of sets of fixed supports 2 .

The pusher assembly 5 is movably mounted on the display board 12 and includes at least one pusher 50 . In this embodiment, the pusher assembly 5 includes a plurality of pushers 50 , and the plurality of pushers 50 are arranged in an overlapping manner. The pusher 50 includes a horizontal bar 51 and a plurality of vertical bars 52 . The plurality of vertical bars 52 are vertically connected to one side of the horizontal bar 51 and are arranged at equal intervals. The plurality of vertical rods 52 have different heights, and their heights gradually change in sequence, and the height change trend is consistent with the height change trend of the plurality of sets of fixed supports 2 . In the present embodiment, the height of the vertical rod 52 gradually increases from the left side to the right side of the display model shown in FIG. 1 .

Except for the outermost one of the vertical bars 52 , the top surfaces of the other vertical plates 52 are inclined surfaces 520 , and the inclined directions of the inclined surfaces 520 are consistent with the inclined directions of the inclined surfaces 200 of the fixed support element 20 . In this embodiment, the top surface of the outermost vertical rod is preferably a flat surface. In other embodiments, the top surface can also be an inclined surface, which does not affect the display of the display model.

In the assembled state, the vertical rod 52 is located in the interval between the two adjacent sets of fixed supports 2, and can move up and down within the interval. Since the number of the vertical rods 52 is the same as the number of groups of the fixed support member 2 , there is one vertical rod 52 , that is, the vertical rod with a flat top surface is located on one side of the fixed support member 2 . When the pusher assembly 5 moves to the highest position, the outermost vertical rod, that is, the vertical rod with a flat top surface, reaches the height of the first guide rod 3 and is adjacent to one end of the first guide rod 3 .

The cam mechanism 6 is rotatably mounted on the display board 12 through an eccentric shaft 60, and is located below the pusher assembly 5 for pushing the pusher assembly 5 to move up and down. The cam mechanism 6 includes at least one cam piece 61 . In the present embodiment, the cam mechanism 6 includes a plurality of cam pieces 61 , and the plurality of cam pieces 61 are provided to overlap. An operating handle 62 is provided on the cam mechanism 6 for the user to operate to rotate the cam mechanism 6 and push the pusher assembly 5 to move up and down.

The display model 100 of the present invention also includes a first baffle 7 and a second baffle 8 . The first baffle 7 is arranged on one side of the display board 12, and is close to the side where the height variation trend of the pusher assembly 5 reaches the highest height, that is, the right side of the display board 12 shown in FIG. 1, for blocking the small balls 10. Prevent the ball 10 from leaving the display model 100. The position of the second baffle 8 is opposite to the first baffle 7 , and it is located above the end of the second guide rod 4 away from the fixed support 2 and close to the end of the second guide rod 4 . In the vertical direction, the upper end of the second baffle plate 8 protrudes beyond the end of the first guide rod 3 adjacent to it, so as to ensure that the ball 10 can move from the first guide rod 3 to the second guide rod 4 and prevent the ball from falling .

As shown in Figures 4a to 4d, the process of the circular motion of the spherical object displayed by the display model of the present invention is as follows: As shown in Figure 4a, it is assumed that the initial position of the small ball 10 is the position of the leftmost set of fixed supports 2 On the slope 200 , at this time, the pusher assembly 5 is at its highest position, and the top slope 520 of the vertical rod 52 of the pusher assembly 5 exceeds the top slope 200 of the fixed support 2 . In this state, when the user rotates the operating handle 62, the cam plate 61 rotates eccentrically around the eccentric shaft 60, and makes the pusher assembly 5 move down to the lowest position shown in FIG. The inclined surface 520 is adjacent to the inclined surface 200 of the fixed support 2 , that is, the highest edge of the inclined surface 520 is engaged with the lowest edge of the inclined surface 200 , and the ball 10 automatically rolls onto the inclined surface 520 of the vertical rod 52 under the action of self-gravity. At this time, the cam sheet 61 continues to rotate, driving the pusher assembly 5 to move upward, and the vertical rod 52 pushes the ball 10 to move upward. When the inclined plane 520 exceeds the inclined plane 200, the ball 10 automatically rolls to the next under the action of self-gravity. On the inclined surface 200 of the fixed support member 2, that is, the state shown in Fig. 4c. As the cam piece 61 continues to rotate, the pusher assembly 5 moves downward again. When it moves to the lowest position shown in FIG. 4d , the ball 10 rolls from the slope 200 of the fixed support 20 to the slope of the next vertical rod 52 520 on. By analogy, with the eccentric rotation of the cam piece 61, the pusher assembly 5 continuously reciprocates up and down, and the small ball 10 continuously rises and moves forward during the rise and fall of the vertical rod 52, from the leftmost set of fixed The support member 2 moves up to the rightmost vertical rod 52 .

As shown in FIG. 1, when the small ball 10 reaches the top surface of the rightmost vertical rod 52, the push assembly 5 is in the highest position, the top surface of the rightmost vertical rod 52 is adjacent to the first guide rod 3, and the small The ball 10 reaches the first guide rod 3 and rolls to the left along the inclined first guide rod 3. When it rolls to the leftmost end of the first guide rod 3, it falls onto the second guide rod 4, and then rolls along the second guide rod 4. Rolling along the inclined second guide rod 4, since the second guide rod 4 is adjacent to the leftmost set of fixed supports 2, the ball 10 rolls onto the leftmost fixed support 2, that is, as shown in FIG. 4a. displayed status. Then the above-mentioned movement process is repeated, with the continuous rotation of the cam piece 61, the small ball 10 cyclically rolls on the fixed support 2, the pusher combination 5, the first guide rod 3, and the second guide rod 4, thereby showing an eccentricity Movement and up and down movement, as well as the self-gravity of the ball, to realize the mechanical movement principle of the circular movement of the ball.

The various specific embodiments described above and shown in the accompanying drawings are only used to illustrate the present invention, but not all of the present invention. Within the scope of the basic technical idea of the present invention, any form of modification made by those of ordinary skill in the relevant technical field to the present invention is within the protection scope of the present invention.

Claims

A display model (100) for carrying cyclic motion of spherical objects, characterized in that it includes:

A stand assembly (1), the stand assembly (1) comprising a display board (12);

A plurality of sets of fixed supports (2) are fixedly mounted on the display panel (12) and are arranged at equal intervals, the heights of the multiple sets of fixed supports (2) are gradually changed in sequence, and each set of fixed supports (2) comprising at least one fixed support element (20);

a first guide rod (3), which is fixedly mounted on the display board (12) and located above the plurality of sets of fixed supports (2);

A second guide rod (4) is fixedly mounted on the display board (12), and is located below the first guide rod (3) and on one side of the plurality of sets of fixed supports (2), so One end of the second guide rod (4) is adjacent to the set of fixed supports located at the outermost among the plurality of sets of fixed supports (2);

A pusher assembly (5) is movably mounted on the display panel (12), the pusher assembly (5) includes at least one pusher (50), and the pusher (50) includes a cross bar ( 51) and a plurality of vertical bars (52), the plurality of vertical bars (52) are vertically connected to one side of the horizontal bar (50), and the heights of the plurality of vertical bars (52) gradually change in turn, In the assembled state, the vertical rod (52) can move up and down within the interval between the adjacent two sets of fixed supports (2);

A cam mechanism (6), the cam mechanism (6) is rotatably mounted on the display board (12) through an eccentric shaft (60), and is located below the pusher assembly (5) for pushing all The pusher assembly (5) moves up and down.
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 1, characterized in that:

The height change trend of the plurality of vertical rods (52) is consistent with the height change trend of the plurality of sets of fixed supports (2).
The display model (100) for carrying the cyclic motion of spherical objects as claimed in claim 2, characterized in that:

The top surface of the fixed support element (20) is an inclined surface (200), and the top surfaces of the vertical rods other than the outermost vertical rod among the plurality of vertical rods (52) are inclined surfaces (520). The inclined surface (520) of the rod is consistent with the inclined direction of the inclined surface (200) of the fixed support element, and is opposite to the changing trend of the height.
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 3, characterized in that:

The first guide rod (3) is located above the pusher assembly (5), and is arranged obliquely, and the inclination direction of the first guide rod (3) is consistent with the change trend of the height;

When the pusher assembly (5) moves upward to the highest position, one end of the first guide rod (3) is in abutment with the top surface of the outermost vertical rod (52).
The display model (100) for carrying the cyclic motion of spherical objects as claimed in claim 4, characterized in that:

The second guide rod (4) is shorter than the first guide rod (3), the second guide rod (4) is inclined, and the inclination direction of the second guide rod (4) is opposite to the inclination direction of the first guide rod (3). .
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 5, characterized in that:

The display model (100) further includes a first baffle plate (7), which is arranged on one side of the display board (12) and is close to a point where the height variation trend of the pusher assembly (5) reaches the highest height. The side is used to block the small ball (10) to prevent the small ball (10) from leaving the display model (100).
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 5, characterized in that:

The display model (100) further comprises a second baffle plate (8), which is arranged above the end of the second guide rod (4) away from the fixed support (2), and in the vertical direction , the upper end of the second baffle plate (8) protrudes beyond the end of the first guide rod (7) close to it.
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 1, characterized in that:

Each set of fixed supports (2) includes a plurality of the fixed support elements (20), the plurality of fixed support elements (20) are arranged in an overlapping manner, and the pusher combination (5) includes a plurality of the pushers (50) ), a plurality of push members (50) are arranged overlappingly.
The display model (100) for carrying cyclic motion of spherical objects as claimed in claim 1, characterized in that:

The cam mechanism (6) includes a plurality of cam pieces (61), and the plurality of cam pieces (61) are arranged overlappingly, and an operating handle (62) is arranged on the cam mechanism (6) for manually rotating the cam mechanism (6) .