Snakelike pendulum demonstration device

Abstract

The utility model relates to a snake shape swing demonstration device relates to scientific demonstration equipment technical field, including demonstration subassembly and drive subassembly, demonstration subassembly includes first fixed frame, sets up the swing rope on first fixed frame and is connected in swing piece of swing rope, drive subassembly includes second fixed frame, rotates and connects drive frame of second fixed frame and drive and connects first driver of drive frame. Drive frame of drive subassembly rotates under the drive of first driver, pushes swing piece and moves in the rotating process, and releases swing piece under the drive of first driver, makes swing piece swing, presents its movement process. Swing piece does not need manual pushing, avoids the error of manual intervention, and simultaneously is entity form, presents the real movement process for audience.

Description

Technical Field

[0001] This utility model relates to the field of scientific demonstration equipment technology, specifically to a serpentine pendulum demonstration device. Background Technology

[0002] The serpentine pendulum, a classic mechanics demonstration device, is widely used in science museums for popular science education. Its core principle is to create a regular oscillating trajectory through the difference in the length of the pendulum bob.

[0003] Currently, the pendulum is driven manually, specifically by pushing it to a predetermined angle using a baffle before releasing it to swing. This method involves human intervention, which can easily lead to inconsistent initial states of the pendulum.

[0004] To avoid human intervention, virtual demonstrations are also available, which involve displaying a simulated animation of the serpentine pendulum's motion on a screen. While this method eliminates the error caused by human intervention, it lacks physical interaction, making it difficult for viewers to perceive the actual motion. Summary of the Invention

[0005] In view of this, it is necessary to provide a serpentine pendulum demonstration device, which drives the pendulum component of the demonstration component to swing under the action of the pendulum rope through the drive frame of the drive component, presenting the physical motion process, reducing the error caused by human intervention, and increasing the sense of realism through the physical form.

[0006] A serpentine pendulum demonstration device includes a demonstration component and a driving component. The demonstration component includes a first fixed frame, a pendulum rope disposed on the first fixed frame, and a pendulum member connected to the pendulum rope. The driving component includes a second fixed frame, a driving frame rotatably connected to the second fixed frame, and a first driver connected to the driving frame. The driving frame can be driven by the first driver to rotate relative to the fixed frame in a direction closer to or farther from the pendulum member. The speed at which the driving frame rotates towards the pendulum member is less than the speed at which it rotates away from the pendulum member. When the driving frame rotates towards the pendulum member, it pushes the pendulum member; when it rotates away from the pendulum member, it releases the pendulum member, so that the pendulum member swings relative to the first fixed frame under the action of the pendulum rope.

[0007] Preferably, the drive frame includes a first telescopic rod and a second telescopic rod rotatably connected to opposite sides of the second fixed frame, and a connecting rod connected between the first telescopic rod and the second telescopic rod. The connecting rod moves in a direction closer to or further away from the second fixed frame under the telescopic action of the first telescopic rod and the second telescopic rod.

[0008] Preferably, the first telescopic rod and the second telescopic rod are arranged in parallel, and the drive frame further includes a second driver connected to the first telescopic rod or the second telescopic rod to drive the first telescopic rod and the second telescopic rod to extend and retract synchronously.

[0009] Preferably, the drive frame further includes a plurality of pushers connected to the connecting rod, and the swing member is configured to correspond one-to-one with the plurality of pushers. The pushers can contact the swing member and push the swing member to swing relative to the first fixed frame under the action of the connecting rod. The swing member is formed into a spherical shape, and the pushers have gaps formed on them for the swing member to be partially inserted, so that the swing member can rest on the pushers.

[0010] Preferably, multiple ornaments are provided, and the multiple ornaments are located on the same horizontal line in the hanging state. The swing ropes are provided to correspond one-to-one with multiple ornaments, and the length of each swing rope is different. The vertical distance between the bottom of the second fixing frame and the ornament gradually decreases along the arrangement direction of the ornaments. Along the same arrangement direction of the ornaments, the lengths of different swing ropes decrease sequentially.

[0011] Preferably, the ornament has an internal cavity, and a light-emitting element is installed inside the cavity.

[0012] Preferably, the demonstration component also includes a winder disposed on the second fixed frame, the swing rope being connected to the second fixed frame via the winder, and the winder being configured to wind the swing rope to change the vertical distance between the swing and the second fixed frame.

[0013] Preferably, the winders are configured to correspond one-to-one with multiple swing ropes.

[0014] Preferably, the serpentine pendulum demonstration device further includes an observation component disposed directly below the demonstration component. The observation component includes an observation mirror with its mapping surface facing upward to map the demonstration component.

[0015] The present invention adopts the above-mentioned technical solution, and its beneficial effects are as follows: the drive frame of the drive component rotates under the drive of the first driver, pushing the pendant to move during the rotation, and releasing the pendant under the drive of the first driver, causing the pendant to swing, presenting its movement process. The pendant does not require manual pushing, avoiding errors caused by human intervention, and at the same time, it is in solid form, presenting a realistic movement process to the audience. Attached Figure Description

[0016] Figure 1 This is a perspective view of the snake-shaped pendulum demonstration device of this utility model.

[0017] Figure 2 for Figure 1 A 3D view of the drive components of the serpentine pendulum demonstration device.

[0018] Figure 3 for Figure 2 A 3D view of the drive frame of the drive component.

[0019] Figure 4 for Figure 1 A 3D view of the demonstration components of the serpentine pendulum demonstration device.

[0020] Figure 5 for Figure 4 A perspective view of the first mounting bracket of the demonstration component.

[0021] Figure 6 for Figure 1 A three-dimensional view of the observation components of the serpentine pendulum demonstration device.

[0022] In the diagram: Demonstration component 10, first fixed frame 11, mounting frame 111, connecting frame 112, mounting groove 1121, mounting cavity 1122, swing rope 12, ornament 13, winder 14, drive component 20, second fixed frame 21, drive frame 22, first telescopic rod 221, second telescopic rod 222, connecting rod 223, second driver 224, pusher 225, rotating rod 226, first driver 23, observation component 30, observation mirror 31, fence 32, base plate 33. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Please refer to Figures 1 to 6 This utility model provides a serpentine pendulum demonstration device, including a demonstration component 10 and a drive component 20. The demonstration component 10 includes a first fixed frame 11, a pendulum rope 12 disposed on the first fixed frame 11, and a pendulum piece 13 connected to the pendulum rope 12. The drive component 20 includes a second fixed frame 21, a drive frame 22 rotatably connected to the second fixed frame 21, and a first driver 23 driving the drive frame 22. The drive frame 22 can be driven by the first driver 23 to rotate relative to the fixed frame in a direction closer to or away from the pendulum piece 13. The speed at which the drive frame 22 rotates towards the pendulum piece 13 is less than the speed at which it rotates away from the pendulum piece 13. When the drive frame 22 rotates towards the pendulum piece 13, it pushes the pendulum piece 13; when it rotates away from the pendulum piece 13, it releases the pendulum piece 13, so that the pendulum piece 13 swings relative to the first fixed frame 11 under the action of the pendulum rope 12.

[0025] The first actuator 23 rotates forward at a first speed, driving the drive frame 22 to rotate relative to the second fixed frame 21 towards the pendulum 13, pushing the pendulum 13 to tilt upward to a predetermined height, i.e., forming a predetermined angle with the vertical plane. The first actuator 23 stops, and after the inertia of the pendulum 13 disappears, the first actuator 23 reverses at a second speed, driving the drive frame 22 to quickly detach from the pendulum 13, thus releasing the pendulum 13. The pendulum 13 then swings under the action of the pendulum rope 12, generating a physical motion process. The first speed is determined by the drive frame 22 contacting the pendulum 13 without causing it to bounce up, and the second speed is determined by the drive frame 22 releasing the pendulum 13 without the pendulum 13 moving synchronously with the drive frame 22. That is, the pendulum 13 can detach from the pendulum 13 as soon as the drive frame 22 begins to move. The first speed is less than the second speed. The swing of the ornament 13 is achieved by the first driver 23 driving the drive frame 22, which does not require manual pushing and releasing of the ornament 13, reducing or even avoiding errors caused by human intervention. Furthermore, the snake pendulum demonstration device uses a physical form, which can present a real motion process and avoid the lack of physical interaction caused by virtual demonstration.

[0026] Please refer to Figure 2 and Figure 3 Furthermore, the drive frame 22 includes a first telescopic rod 221 and a second telescopic rod 222 respectively rotatably connected to opposite sides of the second fixed frame 21, and a connecting rod 223 connected between the first telescopic rod 221 and the second telescopic rod 222. The connecting rod 223 moves in the direction of approaching or moving away from the second fixed frame 21 under the telescopic action of the first telescopic rod 221 and the second telescopic rod 222.

[0027] The position of the connecting rod 223 is determined according to the position of the swing piece 13. When the swing piece 13 descends under the action of the winder 14 (described in detail later), the first telescopic rod 221 and the second telescopic rod 222 extend, driving the connecting rod 223 to descend, ensuring that the pusher 225 of the drive frame 22 (described in detail later) can contact the swing piece 13 and push the swing piece 13 to move.

[0028] Please continue reading. Figure 2 and Figure 3 Furthermore, the first telescopic rod 221 and the second telescopic rod 222 are arranged in parallel, and the drive frame 22 also includes a second driver 224 connected to the first telescopic rod 221 or the second telescopic rod 222 to drive the first telescopic rod 221 and the second telescopic rod 222 to extend and retract synchronously.

[0029] Since the first telescopic rod 221 and the second telescopic rod 222 are parallel and connected by the connecting rod 223, only one second driver 224 needs to be set up and set on one of them to realize the synchronous extension and retraction of the first telescopic rod 221 and the second telescopic rod 222. Specifically, the second driver 224 drives one of the first telescopic rod 221 and the second telescopic rod 222 to extend and retract, and drives the other one to extend and retract synchronously.

[0030] Specifically, the first telescopic rod 221 and the second telescopic rod 222 are identical, both including a sleeve rotatably connected to the second fixed frame 21 and an inner rod slidably disposed within the sleeve. The second actuator 224 can be a cylinder, with its driving end connected to the inner rod and its fixed end connected to the sleeve. Figure 3 As shown, the inner rods and connecting rods 223 of both the first telescopic rod 221 and the second telescopic rod 222 can be integrated into a single unit, forming a "U"-shaped structure, which increases the overall structural strength. The second fixed frame 21 also includes a rotating rod 226 connected to the first driver 23. The two ends of the rotating rod 226 are respectively connected to the sleeves of the first telescopic rod 221 and the second telescopic rod 222. The first driver 23 drives the rotating rod 226 to rotate, which in turn causes the first telescopic rod 221 and the second telescopic rod 222 to rotate relative to the second fixed frame 21. The first driver 23 can be a motor or a combination of a motor and a reducer.

[0031] Please continue reading. Figure 2 and Figure 3 Furthermore, the drive frame 22 also includes a plurality of pushers 225 connected to the connecting rod 223. The swing member 13 is configured to correspond one-to-one with a plurality of pushers 225. The pushers 225 can contact the swing member 13 and push the swing member 13 to swing relative to the first fixed frame 11 under the action of the connecting rod 223. The swing member 13 is formed in a spherical shape. The pushers 225 have gaps formed for the swing member 13 to be partially inserted so that the swing member 13 can rest on the pushers 225.

[0032] The pusher 225 is used to contact the pendant 13, forming a form that adapts to the pendant 13, i.e., it has a gap. The side of the pendant 13 is inserted into the gap and overlaps the pusher 225, so that the spherical pendant 13 can only slide along the extension direction of the pusher 225 under the pushing action of the pusher 225, that is, slide from the position near the connecting rod 223 to the direction away from the connecting rod 223, thus preventing the spherical pendant 13 from shifting laterally. Each pendant 13 is pushed by one pusher 225, so that all pendants 13 are subjected to the same force, avoiding force deviation that would affect the movement process.

[0033] Specifically, the pusher 225 is made of hard steel wire, and its front view is a "U" shaped structure. The middle part of the "U" shaped structure is the gap. The side view of the pusher 225 is an "L" shaped structure. The short arm of the "L" shaped structure is connected to the connecting rod 223, and the extension direction of the long arm is the extension direction of the pusher 225.

[0034] Please refer to Figure 1 and Figure 4 Furthermore, multiple ornaments 13 are provided, and multiple ornaments 13 are located on the same horizontal line in the hanging state. Multiple swing ropes 12 are provided to correspond one-to-one with multiple ornaments 13. Each swing rope 12 has a different length. The vertical distance between the bottom of the second fixing frame 21 and the ornament 13 gradually decreases along the arrangement direction of the ornaments 13. Along the same arrangement direction of the ornaments 13, the lengths of different swing ropes 12 decrease sequentially.

[0035] The serpentine pendulum is achieved by connecting identical pendulum pieces 13 with pendulum ropes 12 of varying lengths, such as... Figure 4 As shown, the ornaments 13 are arranged horizontally. The vertical distance between the bottom of the second fixing frame 21 and the ornaments 13 gradually decreases from left to right in the horizontal direction. In the same direction, the length of the swing ropes 12 decreases sequentially. That is, the longest swing rope 12 is fixed at the leftmost end of the second fixing frame 21, and the shortest swing rope 12 is fixed at the rightmost end of the second fixing frame 21. The length of the swing ropes 12 decreases sequentially from the longest swing rope 12 to the shortest swing rope 12.

[0036] Specifically, the first mounting bracket 11 includes a mounting frame 111 installed on the ceiling or other support and a connecting frame 112 connected below the mounting frame 111. The connecting frame 112 is a concave arc shape facing the mounting frame 111, such as... Figure 4 As shown, the bottom of the connecting frame 112 is higher on the left and lower on the right, forming a shape in which the vertical distance from the ornament 13 gradually decreases.

[0037] Furthermore, the interior of the ornament 13 is provided with a cavity, and a light-emitting element is installed inside the cavity.

[0038] When the light-emitting components emit light, the ornament 13 will also emit light, which can enhance the observation effect and make it easier for the audience to clearly and quickly capture the movement process of the ornament 13. The light-emitting components on different ornaments 13 can be controlled individually, and by controlling the light of different ornaments 13, the movement process of a specific ornament 13 can be observed.

[0039] Specifically, the light-emitting element can be an electrodeless discharge lamp.

[0040] Please refer to Figure 4Furthermore, the demonstration component 10 also includes a winder 14 disposed on the second fixed frame 21, the swing rope 12 being connected to the second fixed frame 21 via the winder 14, the winder 14 being configured to wind the swing rope 12 to change the vertical distance between the swing piece 13 and the second fixed frame 21.

[0041] The distance between the ornament 13 and the second fixed frame 21 varies, resulting in different motion processes. To observe different motion processes, the distance between the ornament 13 and the second fixed frame 21 can be adjusted by winding the swing rope 12 with the winder 14, which is convenient to operate.

[0042] Continue reading Figure 4 Furthermore, the winders 14 are configured to correspond one-to-one with multiple swing ropes 12.

[0043] Each swing rope 12 is connected to a winder 14, which can precisely adjust the winding length of each swing rope 12, thereby adjusting the vertical distance between the swing piece 13 and the connecting frame 112, so that all the swing pieces 13 can be on the same horizontal line when they are hanging down.

[0044] Specifically, such as Figure 4 and Figure 5 As shown, the bottom of the connecting frame 112 is evenly spaced along its arc-shaped extension direction with a plurality of mounting slots 1121 corresponding to the winder 14. A mounting cavity 1122 is also formed between every two mounting slots 1121. The winder 14 includes a spool and a motor connected to the spool. The motor is located in the mounting slot 1121, and the spool is located in the mounting cavity 1122. The upper end of the swing rope 12 passes through the mounting cavity 1122 and is fixed on the spool. Driven by the motor, the spool rotates to wind or release the swing rope 12.

[0045] Please refer to Figure 1 and Figure 6 Furthermore, the serpentine pendulum demonstration device also includes an observation component 30 located directly below the demonstration component 10. The observation component 30 includes an observation mirror 31 with its mapping surface facing upwards to map the demonstration component 10.

[0046] The observation mirror 31 can reflect the movement of the ornament 13, so that the audience does not need to look up to observe, but only needs to look down to observe, thus avoiding fatigue caused by looking up for a long time.

[0047] Specifically, the observation component 30 also includes a base plate 33 fixed to the ground and a fence 32 surrounding the base plate 33. The observation mirror 31 is positioned above the base plate 33 and within the enclosure of the fence 32. The fence 32 is used to prevent viewers from walking directly under the demonstration component 10 and being hit by the ornament 13, thus avoiding safety accidents.

[0048] In practical use, the device is activated by turning on the light-emitting element corresponding to the ornament 13 to be observed, and the first driver 23 is operated to rotate forward at a first speed. The drive frame 22 rotates relative to the second fixed frame 21 towards the ornament 13, and pushes the ornament 13 to tilt to a predetermined angle through the pusher 225. The first driver 23 is then stopped. After the ornament 13 comes to rest, the first driver 23 is operated to rotate in reverse at a second speed. The drive frame 22 rotates relative to the second fixed frame 21 away from the ornament 13, and the ornament 13 is released. That is, the supporting force from the pusher 225 on the ornament 13 disappears, and it begins to swing back and forth relative to the first fixed frame 11, generating a motion process. This motion process is reflected by the observation mirror 31, and the audience can observe the motion process of the ornament 13 through the observation mirror 31.

[0049] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A serpentine pendulum demonstration device, characterized in that: The device includes a demonstration component and a drive component. The demonstration component includes a first fixed frame, a pendulum rope mounted on the first fixed frame, and a pendulum connected to the pendulum rope. The drive component includes a second fixed frame, a drive frame rotatably connected to the second fixed frame, and a first driver connected to the drive frame. The drive frame can be driven by the first driver to rotate relative to the fixed frame in a direction closer to or farther from the pendulum. The speed at which the drive frame rotates towards the pendulum is less than the speed at which it rotates away from the pendulum. When the drive frame rotates towards the pendulum, it pushes the pendulum; when it rotates away from the pendulum, it releases the pendulum, so that the pendulum swings relative to the first fixed frame under the action of the pendulum rope.

2. The serpentine pendulum demonstration device as described in claim 1, characterized in that: The drive frame includes a first telescopic rod and a second telescopic rod rotatably connected to opposite sides of the second fixed frame, and a connecting rod connecting the first telescopic rod and the second telescopic rod. The connecting rod moves in the direction of approaching or moving away from the second fixed frame under the telescopic action of the first telescopic rod and the second telescopic rod.

3. The serpentine pendulum demonstration device as described in claim 2, characterized in that: The first telescopic rod and the second telescopic rod are arranged in parallel. The drive frame also includes a second driver connected to the first telescopic rod or the second telescopic rod to drive the first telescopic rod and the second telescopic rod to extend and retract synchronously.

4. The serpentine pendulum demonstration device as described in claim 3, characterized in that: The drive frame also includes multiple pushers connected to the connecting rod. The swing pieces are configured to correspond one-to-one with the multiple pushers. The pushers can contact the swing pieces and push the swing pieces to swing relative to the first fixed frame under the action of the connecting rod. The swing pieces are spherical. The pushers have gaps formed on them for the swing pieces to be partially inserted, so that the swing pieces can rest on the pushers.

5. The serpentine pendulum demonstration device as described in claim 1, characterized in that: The ornaments are configured in multiple ways, and the multiple ornaments are located on the same horizontal line when they are hanging down. The swing ropes are configured to correspond one-to-one with the multiple ornaments, and each swing rope has a different length. The vertical distance between the bottom of the second fixing frame and the ornaments gradually decreases along the arrangement direction of the ornaments. Along the same arrangement direction of the ornaments, the lengths of the different swing ropes decrease sequentially.

6. The serpentine pendulum demonstration device as described in claim 1, characterized in that: The ornament has a cavity inside, and a light-emitting element is installed inside the cavity.

7. The serpentine pendulum demonstration device as described in claim 1, characterized in that: The demonstration component also includes a winder mounted on a second fixed frame. The swing rope is connected to the second fixed frame via the winder, which is configured to wind the swing rope to change the vertical distance between the swing and the second fixed frame.

8. The serpentine pendulum demonstration device as described in claim 7, characterized in that: The winders are configured to correspond one-to-one with multiple swing ropes.

9. The serpentine pendulum demonstration device as described in claim 1, characterized in that: The serpentine pendulum demonstration device also includes an observation component located directly below the demonstration component. The observation component includes an observation mirror with its mapping surface facing upwards to map the demonstration component.

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