Inertia pitching science popularization device for displaying effect of inertia on object motion state

Abstract

The utility model discloses an inertia pitching science popularization device for displaying the action of inertia on the motion state of an object, which comprises a bracket, a model driving device and a ball pitching device, and is characterized in that the bracket is provided with a guide rail and a model driving device; an airplane model; the ball throwing device comprises a ball throwing pipeline, a first ball throwing baffle, a second ball throwing baffle, a ball throwing rotating shaft and a ball throwing driving device; the filling device comprises a filling pipeline, a first filling baffle, a second filling baffle, a filling rotating shaft and a filling driving device; according to the target indication detection device, a support is provided with a ball falling groove located below a guide rail; a ball return track; and the ball return device is lifted. According to the embodiment of the utility model, the inertial pitching science popularization device for displaying the action of inertia on the motion state of the object has the advantages of strong interactivity, high interestingness and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing popular science exhibits, in particular to an inertia ball pitching popular science device for demonstrating the effect of inertia on the motion state of an object. Background Art

[0002] Exhibition halls, such as the Science and Technology Museum, demonstrate scientific principles through popular science exhibits.

[0003] In the related art, exhibits that demonstrate the principle of inertia are made by installing a ball throwing mechanism on a train model. When the train is running on the track, the ball throwing mechanism throws the display ball, and the display ball can still fall into the train model after inertial motion, so as to demonstrate the effect of inertia on the display ball. However, it can only play a simple display role and lacks interactivity. Since inertia is a basic law of physics, the average age of the audience is relatively low, and exhibits that lack interactivity are not attractive enough to children. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object, and the inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object has the advantages of strong interactivity and high interest.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the utility model, an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object is proposed, and the inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object comprises: a bracket, on which a guide rail and a model driving device are provided; an airplane model, which can be slidably arranged on the guide rail and is in transmission connection with the model driving device; a pitching device, which is arranged on the airplane model, and comprises a pitching pipe, a first pitching baffle, a second pitching baffle, a pitching rotating shaft and a pitching driving device, wherein the pitching pipe is suitable for displaying a ball passing through, the first pitching baffle and the second pitching baffle are provided, and the pitching rotating shaft and the pitching driving device are provided. The ball baffles are arranged at intervals in the axial direction of the pitching shaft, and the pitching shaft is rotatably connected to the pitching drive device between a first pitching position and a second pitching position. When the pitching shaft is in the first pitching position, the first pitching baffle blocks the pitching pipe and the second pitching baffle avoids the pitching pipe. When the pitching shaft is in the second pitching position, the second pitching baffle blocks the pitching pipe and the first pitching baffle avoids the pitching pipe; a filling device, the filling device is arranged on the bracket, the filling device includes a filling pipe, a first filling baffle, a second filling baffle, a filling shaft and a filling drive device, the filling pipe is suitable for unfolding The first filling baffle and the second filling baffle are arranged at intervals in the axial direction of the filling shaft, and the filling shaft is rotatably connected to the filling drive device between the first filling position and the second filling position. When the filling shaft is in the first filling position, the first filling baffle blocks the filling pipe and the second filling baffle avoids the filling pipe. When the filling shaft is in the second filling position, the second filling baffle blocks the filling pipe and the first filling baffle avoids the filling pipe. When the aircraft model is located at the rear end of the guide rail, the outlet of the filling pipe is located directly above the inlet of the ball throwing pipe. The target indicating and detecting device is arranged on the bracket, and the target indicating and detecting device includes a target indicating device and a target detecting device. The bracket is provided with a ball falling groove below the guide rail, and the display ball thrown out from the lower end of the ball throwing pipe is suitable for falling into the ball falling groove, and the target indicating device is suitable for indicating a target area in the ball falling groove, and the target detecting device is suitable for detecting whether the display ball falls into the target area; a ball returning track, the ball returning track is arranged below the ball falling groove and extends downward from front to back; a lifting ball returning device, the lifting ball returning device is suitable for transporting the display ball at the rear end of the ball returning track to the inlet of the filling pipe.

[0006] The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to the embodiment of the utility model has the advantages of strong interactivity and high interest.

[0007] In addition, the inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to the above embodiment of the utility model may also have the following additional technical features:

[0008] According to one embodiment of the utility model, the ball-returning lifting device comprises: a spiral track, which is arranged on the bracket, the lower end of the spiral track is connected to the rear end of the ball-returning track and the upper end is connected to the filling pipe; a rotating drum, which is rotatably arranged on the bracket and is located radially inside the spiral track, and the outer peripheral surface of the rotating drum is provided with a plurality of push plates extending radially outward along the rotating drum, and the push plates are suitable for pushing the display ball to move along the spiral track; a lifting drive device, which is transmission-connected to the rotating drum.

[0009] According to an embodiment of the present utility model, the upper end of the spiral track is connected to the filling pipe through a filling track, and the filling track extends downwardly from the back to the front.

[0010] According to one embodiment of the utility model, the distance between the first pitching baffle and the second pitching baffle in the axial direction of the pitching shaft is greater than the diameter of the display ball, and the distance between the first loading baffle and the second loading baffle in the axial direction of the loading shaft is greater than the diameter of the display ball.

[0011] According to one embodiment of the utility model, the projections of the first pitching baffle and the second pitching baffle in a plane perpendicular to the axial direction of the pitching shaft do not overlap, and the projections of the first loading baffle and the second loading baffle in a plane perpendicular to the axial direction of the loading shaft do not overlap.

[0012] According to one embodiment of the utility model, the pitching pipe is provided with a first pitching avoidance groove for avoiding the first pitching baffle and a second pitching avoidance groove for avoiding the second pitching baffle, and the loading pipe is provided with a first loading avoidance groove for avoiding the first loading baffle and a second loading avoidance groove for avoiding the second loading baffle.

[0013] According to an embodiment of the utility model, the upper surface of the ball return track is covered with a buffer pad.

[0014] According to an embodiment of the utility model, the target indicating device includes a plurality of indicator lights arranged in the ball dropping groove and spaced apart along the front-to-back direction.

[0015] According to an embodiment of the utility model, a cable drag chain is connected between the airplane model and the bracket, and the pitching device is electrically connected to a power source through the cable drag chain.

[0016] According to an embodiment of the present invention, the target detection device is a through-beam photoelectric sensor.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 The utility model is a schematic structural diagram of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0020] Figure 2 The utility model is a schematic structural diagram of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0021] Figure 3 The utility model is a schematic structural diagram of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0022] Figure 4 The invention is a schematic structural diagram of an airplane model and a ball pitching device of an inertial ball pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0023] Figure 5 It is a structural schematic diagram of a loading device of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0024] Figure 6 The utility model is a partial structural schematic diagram of a pitching device of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0025] Figure 7 It is a partial structural schematic diagram of a ball-lifting and returning device of an inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the utility model.

[0026] Figure numerals: Inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object, bracket 10, guide rail 11, model driving device 12, airplane model 20, cable drag chain 21, pitching device 30, pitching pipe 31, first pitching baffle 32, second pitching baffle 33, pitching shaft 34, pitching driving device 35, loading device 40, loading pipe 41, first loading baffle 42, second loading baffle 43, loading shaft 44, loading driving device 45, target indication detection device 50, ball return track 60, lifting ball return device 70, spiral track 71, rotating drum 72, pushing plate 73, lifting driving device 74, loading track 75. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following describes an inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to an embodiment of the present utility model with reference to the accompanying drawings.

[0031] like Figure 1-Figure 7 As shown, according to an embodiment of the utility model, an inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object includes a bracket 10, an airplane model 20, a pitching device 30, a loading device 40, a target indication detection device 50, a ball return track 60 and a ball return lifting device 70.

[0032] A guide rail 11 and a model driving device 12 are provided on the bracket 10 .

[0033] The airplane model 20 is slidably disposed on the guide rail 11 and is drivingly connected to the model driving device 12 (the front-to-back and up-down directions are shown by arrows in the figure).

[0034] The pitching device 30 is arranged on the aircraft model 20, and the pitching device 30 includes a pitching pipe 31, a first pitching baffle 32, a second pitching baffle 33, a pitching shaft 34 and a pitching driving device 35. The pitching pipe 31 is suitable for display balls to pass through. The first pitching baffle 32 and the second pitching baffle 33 are spaced apart in the axial direction of the pitching shaft 34. The pitching shaft 34 is rotatably connected to the pitching driving device 35 between a first pitching position and a second pitching position. When the pitching shaft 34 is at the first pitching position, the first pitching baffle 32 blocks the pitching pipe 31 and the second pitching baffle 33 avoids the pitching pipe. When the pitching shaft 34 is at the second pitching position, the second pitching baffle 33 blocks the pitching pipe 31 and the first pitching baffle 32 avoids the pitching pipe 31.

[0035] The loading device 40 is arranged on the bracket 10, and the loading device 40 includes a loading pipe 41, a first loading baffle 42, a second loading baffle 43, a loading shaft 44 and a loading drive device 45. The loading pipe 41 is suitable for display balls to pass through, the first loading baffle 42 and the second loading baffle 43 are spaced apart in the axial direction of the loading shaft 44, and the loading shaft 44 is rotatably connected to the loading drive device 45 between a first loading position and a second loading position. When the loading shaft 44 is at the first loading position, the first loading baffle 42 blocks the loading pipe 41 and the second loading baffle 43 avoids the loading pipe 41. When the loading shaft 44 is at the second loading position, the second loading baffle 43 blocks the loading pipe 41 and the first loading baffle 42 avoids the loading pipe 41. When the aircraft model 20 is located at the rear end of the guide rail 11, the outlet of the loading pipe 41 is located directly above the inlet of the ball throwing pipe 31.

[0036] The target indication detection device 50 is arranged on the bracket 10, and the target indication detection device 50 includes a target indication device and a target detection device. The bracket 10 is provided with a ball falling groove located below the guide rail 11. The display ball thrown out from the lower end of the ball throwing pipe 31 is suitable for falling into the ball falling groove. The target indication device is suitable for indicating the target area in the ball falling groove. The target detection device is suitable for detecting whether the display ball falls into the target area.

[0037] The ball return track 60 is disposed below the ball drop groove and extends obliquely downward from front to rear.

[0038] The ball-returning device 70 is adapted to transport the display balls at the rear end of the ball-returning track 60 to the inlet of the filling pipe 41 .

[0039] Specifically, the inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object can demonstrate the effect of the law of inertia through two levels in succession.

[0040] In the first level, the target indication device of the target indication detection device 50 indicates a position as the target area. The model driving device 12 drives the aircraft model 20 to move forward and pause at several positions, including the position directly above the target area. The experiencer can choose to pitch when the aircraft model 20 is stationary directly above the target area, and control the pitching driving device 35 to drive the pitching shaft 34 to rotate to the first pitching position, so that the second pitching baffle 33 avoids the pitching pipe 31, and the display ball blocked by the second pitching baffle 33 falls from the outlet of the pitching pipe 31. If the target detection device of the target indication detection device 50 detects that the display ball passes the target area smoothly, it is considered that the level is passed. After passing this level, the experiencer has a clear understanding of the trajectory of the free fall motion of an object without horizontal velocity, laying a foundation for understanding the role of inertia later. The display ball that passes through the ball drop groove falls into the ball return track 60, rolls to the rear end of the ball return track 60 under the action of gravity, is lifted by the ball return device 70 and transported to the inlet of the filling pipe 41, and the filling drive device 45 drives the filling shaft 44 to rotate to the second filling position, so that the first filling baffle 42 avoids the filling pipe 41, so that the display ball is blocked in the filling pipe 41 by the second filling baffle 43. When the aircraft model 20 returns to the rear end of the guide rail 11, the filling drive device 45 drives the filling shaft 44 to rotate to the first filling position. The first loading position makes the second loading baffle 43 avoid the loading pipe 41, so that the display ball blocked by the second loading baffle 43 falls from the lower end outlet of the loading pipe 41 into the upper end inlet of the pitching pipe 31. At this time, the first pitching baffle 32 on the pitching shaft 34 located at the first pitching position blocks the display ball. Then the pitching drive device 35 drives the pitching shaft 34 to rotate to the second pitching position, so that the first pitching baffle 32 avoids the pitching pipe 31, and the display ball falls above the second pitching baffle 33, waiting for the next pitching.

[0041] In the second level, the airplane model 20 will not pause but keep moving driven by the model driving device 12. The experiencer needs to consider the horizontal speed caused by inertia, predict the landing point of the display ball, and control the pitching device 30 to drop the display ball at the appropriate time. If the target indication detection device 50 detects that the display ball successfully passes through the target area, it is considered that the level is passed. This level will allow the audience to have an intuitive understanding of the changes in motion trajectory caused by inertia.

[0042] The pitching device 30 may be connected to an operating device such as a button to facilitate the experiencer to control the timing of pitching. If the experiencer fails to throw the display ball into the target area, the display ball is transported back to the pitching device 30 to allow the experiencer to try again until all levels are passed.

[0043] According to the inertial ball throwing science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to the embodiment of the utility model, an airplane model 20 is provided, and the influence of inertia on the motion of a demonstration ball is simulated by the movement of the airplane model 20. The process of airplane bombing can also be simulated for the experiencer, thereby increasing interactivity and fun.

[0044] By providing the pitching device 30 on the aircraft model 20, the pitching timing of the exhibition ball can be controlled by the pitching device.

[0045] By providing the loading device 40 , the timing of replenishing the display balls into the pitching device 30 can be controlled by the loading device 40 , so that the airplane model 20 can be replenished when it returns to the rear end of the guide rail 11 .

[0046] By making the pitching device 30 include the pitching pipe 31, the first pitching baffle 32, the second pitching baffle 33, and the pitching shaft 34, and making the loading device 40 include the loading pipe 41, the first loading baffle 42, the second loading baffle 43, and the loading shaft 44, after the display ball enters from the pipe inlet, it will first be blocked by the upper baffle. By rotating the shaft, the upper baffle avoids the pipe and the lower baffle blocks the pipe, so that the display ball falls on the lower baffle. Then, the shaft is rotated in the opposite direction to make the lower baffle avoid the pipe so that the display ball can fall. In this way, the pitching and loading timing of the display ball can be controlled.

[0047] By providing the target indication detection device 50, the target indication device can be used to indicate the target area, and the target detection device can be used to detect whether the display ball falls into the target area.

[0048] By providing the ball return track 60 and extending downwardly from front to back, the display ball can be rolled to the rear end of the ball return track 60 under the action of gravity, so that the ball return device 70 can be lifted to lift the display ball to the loading device 40.

[0049] By providing the ball-lifting and returning device 70 , the display balls at the rear end of the ball-returning track 60 can be transported to the inlet of the filling pipe 41 by using the ball-lifting and returning device 70 .

[0050] That is to say, the inertial pitching science popularization device 1 that demonstrates the effect of inertia on the motion state of an object allows the experiencer to judge the pitching time by himself, and detects whether the demonstration ball falls into the target area, and enhances the fun and interactivity of the experiencer in a game-like manner, helping the experiencer to better experience the effect of inertia on the motion state of an object from the hands-on operation of trying to throw the ball into the target area, so as to have a more intuitive and vivid understanding of Newton's laws of kinematics. This simple and highly playful mode can help younger experiencers gain a basic understanding of classical physics kinematics, build curiosity for subsequent learning and exploration, and lay a cognitive foundation.

[0051] Therefore, the inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to the embodiment of the utility model has the advantages of strong interactivity and high interest.

[0052] The following describes an inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to a specific embodiment of the utility model with reference to the accompanying drawings.

[0053] In some specific embodiments of the present invention, Figure 1-Figure 7 As shown, according to an embodiment of the utility model, an inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object includes a bracket 10, an airplane model 20, a pitching device 30, a loading device 40, a target indication detection device 50, a ball return track 60 and a ball return lifting device 70.

[0054] Specifically, Figure 1 , Figure 3 and Figure 7 As shown, the ball lifting and returning device 70 includes a spiral track 71, a rotating drum 72 and a lifting driving device 74. The spiral track 71 is arranged on the bracket 10, and the lower end of the spiral track 71 is connected to the rear end of the ball returning track 60 and the upper end is connected to the filling pipe 41. The rotating drum 72 is rotatably arranged on the bracket 10 and is located radially inside the spiral track 71. The outer peripheral surface of the rotating drum 72 is provided with a plurality of push plates 73 extending radially outward along the rotating drum 72, and the push plates 73 are suitable for pushing the display ball to move along the spiral track 71. The lifting driving device 74 is connected to the rotating drum 72 in a transmission manner. In this way, the rotating drum 72 can be driven to rotate by the lifting driving device 74, and the display ball can be pushed to move along the spiral track 71 by the push plates 73 on the rotating drum 72, so that the display ball moves upward while revolving along the circumference of the rotating drum 72 under the guidance of the spiral track 71, so as to realize the lifting of the display ball, and lift the display ball to the filling pipe 41, so as to facilitate throwing the ball again.

[0055] More specifically, Figure 1 As shown, the upper end of the spiral track 71 is connected to the filling pipe 41 through the filling track 75, and the filling track 75 extends downward from the back to the front. In this way, the display ball can be lifted to the highest point by the lifting and returning ball device 70 and can roll along the filling track 75 to the inlet of the filling pipe 41 under the action of gravity.

[0056] Advantageously, the distance between the first pitching baffle 32 and the second pitching baffle 33 in the axial direction of the pitching shaft 34 is greater than the diameter of the display ball, and the distance between the first loading baffle 42 and the second loading baffle 43 in the axial direction of the loading shaft 44 is greater than the diameter of the display ball. This can prevent the baffle from interfering with the display ball when the shaft rotates.

[0057] Specifically, the distance between the first ball throwing baffle 32 and the second ball throwing baffle 33 in the axial direction of the ball throwing shaft 34 is less than 1.5 times the diameter of the display ball, and the distance between the first loading baffle 42 and the second loading baffle 43 in the axial direction of the loading shaft 44 is less than 1.5 times the diameter of the display ball. This makes it easier to throw one display ball at a time when there are multiple display balls.

[0058] More advantageously, if Figure 6 As shown, the projections of the first pitching baffle 32 and the second pitching baffle 33 in a plane perpendicular to the axial direction of the pitching rotation axis 34 do not overlap, and the projections of the first loading baffle 42 and the second loading baffle 43 in a plane perpendicular to the axial direction of the loading rotation axis 44 do not overlap. In this way, the two baffles on the same rotation axis can be staggered, which is convenient for controlling the blocking and avoidance of the display ball.

[0059] Furthermore, if Figure 4 and Figure 5 As shown, the pitching pipe 31 is provided with a first pitching avoidance groove for avoiding the first pitching baffle 32 and a second pitching avoidance groove for avoiding the second pitching baffle 33, and the loading pipe 41 is provided with a first loading avoidance groove for avoiding the first loading baffle 42 and a second loading avoidance groove for avoiding the second loading baffle 43. This makes it easier to rotate the baffle.

[0060] Optionally, the upper surface of the ball return track 60 is covered with a buffer pad, so as to avoid damage to the display ball or the ball return track 60 when the display ball collides with the ball return track 60, and reduce the noise generated during the collision.

[0061] Furthermore, the target indicating device comprises a plurality of indicator lights arranged in the ball-dropping groove and spaced apart along the front-back direction, so that the target area can be indicated by lighting up the indicator lights.

[0062] Furthermore, the target detection device is a through-beam photoelectric sensor, which can easily detect whether the display ball falls into the target area.

[0063] Figure 1 and Figure 2 The inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to some examples of the utility model is shown. Figure 1 and Figure 2 As shown, a cable drag chain 21 is connected between the aircraft model 20 and the bracket 10, and the pitching device 30 is electrically connected to the power supply through the cable drag chain 21. In this way, the cable drag chain 21 can be used to protect the cable, so as to avoid interference between the movement of the aircraft model 20 and the cable.

[0064] Specifically, the target detection device may also be connected to a sound-generating device to encourage and prompt the experiencer after falling into the target area.

[0065] The inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object may have a plurality of demonstration balls to reduce waiting time.

[0066] The model driving device 12 is a linear module, the pitching driving device 35 and the filling driving device 45 are stepping motors, and the lifting driving device 74 is a motor.

[0067] The ball throwing pipe 31 and the loading pipe 41 are nylon parts made of additive manufacturing, the first ball throwing baffle 32, the second ball throwing baffle 33 and the ball throwing shaft 34 are nylon parts and are integrally formed by additive manufacturing, and the first loading baffle 42, the second loading baffle 43 and the loading shaft 44 are nylon parts and are integrally formed by additive manufacturing. This can reduce friction and facilitate manufacturing.

[0068] The upper and lower ends of the rotating drum 72 are arranged on the bracket 10 through bearings. A plurality of support rods are arranged on the radial outer side of the spiral track 71. The support rods are connected to the bracket 10 through a support platform.

[0069] Other structures and operations of the inertial pitching science popularization device 1 for demonstrating the effect of inertia on the motion state of an object according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object, characterized in that: include: A bracket, wherein a guide rail and a model driving device are provided on the bracket; An airplane model, which is slidably disposed on the guide rail and is drivingly connected to the model driving device; A pitching device, the pitching device is arranged on the aircraft model, the pitching device comprises a pitching pipe, a first pitching baffle, a second pitching baffle, a pitching shaft and a pitching driving device, the pitching pipe is suitable for a display ball to pass through, the first pitching baffle and the second pitching baffle are arranged at intervals in the axial direction of the pitching shaft, the pitching shaft is rotatably connected to the pitching driving device between a first pitching position and a second pitching position, when the pitching shaft is at the first pitching position, the first pitching baffle blocks the pitching pipe and the second pitching baffle avoids the pitching pipe, when the pitching shaft is at the second pitching position, the second pitching baffle blocks the pitching pipe and the first pitching baffle avoids the pitching pipe; A filling device, the filling device is arranged on the bracket, the filling device comprises a filling pipe, a first filling baffle, a second filling baffle, a filling shaft and a filling drive device, the filling pipe is suitable for display balls to pass through, the first filling baffle and the second filling baffle are spaced apart in the axial direction of the filling shaft, the filling shaft is rotatably connected to the filling drive device between a first filling position and a second filling position, when the filling shaft is in the first filling position, the first filling baffle blocks the filling pipe and the second filling baffle avoids the filling pipe, when the filling shaft is in the second filling position, the second filling baffle blocks the filling pipe and the first filling baffle avoids the filling pipe, when the airplane model is located at the rear end of the guide rail, the outlet of the filling pipe is located directly above the inlet of the ball throwing pipe; a target indicating and detecting device, the target indicating and detecting device being arranged on the bracket, the target indicating and detecting device comprising a target indicating device and a target detecting device, the bracket being provided with a ball-dropping groove located below the guide rail, the display ball thrown out from the lower end of the ball-dropping pipe being suitable for falling into the ball-dropping groove, the target indicating device being suitable for indicating a target area in the ball-dropping groove, and the target detecting device being suitable for detecting whether the display ball falls into the target area; A ball return track, the ball return track is arranged below the ball drop groove and extends downwardly from front to back; A ball-lifting and returning device is adapted to transport the display balls at the rear end of the ball-returning track to the inlet of the filling pipe.

2. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The ball lifting and returning device comprises: A spiral track, wherein the spiral track is arranged on the bracket, the lower end of the spiral track is connected to the rear end of the ball return track and the upper end of the spiral track is connected to the filling pipe; A rotating drum, the rotating drum is rotatably arranged on the bracket and located radially inward of the spiral track, and a plurality of push plates extending radially outward from the rotating drum are arranged on the outer circumference of the rotating drum, and the push plates are suitable for pushing the display ball to move along the spiral track; A lifting drive device is drivingly connected to the rotating drum.

3. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 2, characterized in that: The upper end of the spiral track is connected to the filling pipe through a filling track, and the filling track extends downwardly from the back to the front.

4. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The distance between the first pitching baffle and the second pitching baffle in the axial direction of the pitching shaft is greater than the diameter of the display ball, and the distance between the first loading baffle and the second loading baffle in the axial direction of the loading shaft is greater than the diameter of the display ball.

5. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The projections of the first pitching baffle and the second pitching baffle in a plane perpendicular to the axial direction of the pitching shaft do not overlap, and the projections of the first loading baffle and the second loading baffle in a plane perpendicular to the axial direction of the loading shaft do not overlap.

6. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The pitching pipe is provided with a first pitching avoidance groove for avoiding the first pitching baffle and a second pitching avoidance groove for avoiding the second pitching baffle, and the loading pipe is provided with a first loading avoidance groove for avoiding the first loading baffle and a second loading avoidance groove for avoiding the second loading baffle.

7. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The upper surface of the ball return track is covered with a buffer pad.

8. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The target indicating device includes a plurality of indicator lights arranged in the ball-dropping groove and spaced apart along the front-rear direction.

9. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: A cable drag chain is connected between the airplane model and the bracket, and the ball throwing device is electrically connected to a power source through the cable drag chain.

10. The inertial pitching science popularization device for demonstrating the effect of inertia on the motion state of an object according to claim 1, characterized in that: The target detection device is a through-beam photoelectric sensor.

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