Bouncing mechanism

Abstract

A bouncing mechanism relates to the technical field of mechanical engineering. The bouncing mechanism comprises a fixed frame and a movable frame in sliding connection with the fixed frame, and the lower end of the movable frame is located outside the lower end of the fixed frame. The front foot and the rear foot are respectively arranged at the upper end of the fixed frame and the lower end of the movable frame; the trigger is movably connected to the upper end of the fixed frame and used for locking the upper end of the movable frame before jumping; the sliding block can directionally slide on the fixing frame and is connected with the fixing frame through an elastic rope or a rubber band; the take-up and pay-off device is installed at the lower end of the fixed frame and provided with a traction rope, and the traction rope is connected with the upper end of the movable frame and the sliding block and used for driving the sliding block to move and stretching the elastic rope or the rubber band; after the sliding block moves in place, the trigger is pushed to rotate to release the movable frame, the elastic rope or the rubber band contracts and pulls the traction rope through the sliding block, and the lower end of the movable frame is driven to pop up to execute jumping action. The bouncing mechanism can improve energy storage capacity and stability and reduce energy loss.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a bouncing mechanism for realizing a jumping action. Background Art

[0002] Chinese patent document CN110126933A discloses an energy storage jumping mechanism using a spring as a driving mechanism. The mechanism relies on the elastic deformation of the spring to achieve the jumping action. Although many existing jumping devices use traditional springs (such as linear springs and torsion springs) to store and release energy, other energy storage elements, such as elastic ropes or rubber bands, often have better performance in energy storage capacity and stability compared to these traditional springs. In addition, traditional springs may lose some energy due to metal vibration during operation, which is one of their shortcomings. Utility Model Content

[0003] The utility model aims to provide a bouncing mechanism using an elastic rope or a rubber band as an energy storage element, so as to improve the energy storage capacity and stability and reduce energy loss.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bouncing mechanism, comprising:

[0005] A fixed frame, and a movable frame slidably connected thereto, wherein the lower end of the movable frame is located outside the lower end of the fixed frame;

[0006] The front foot and the rear foot are respectively arranged at the upper end of the fixed frame and the lower end of the movable frame;

[0007] A trigger, movably connected to the upper end of the fixed frame, used to lock the upper end of the movable frame before jumping;

[0008] A slider can slide directionally on the fixing frame and is connected to the fixing frame by an elastic cord or a rubber band;

[0009] A wire-retracting and -releasing device is installed at the lower end of the fixed frame and is equipped with a traction rope, wherein the traction rope connects the upper end of the movable frame and the slider, and is used to drive the slider to move and stretch the elastic rope or rubber band;

[0010] After the slider moves into position, it pushes the trigger to rotate to release the movable frame, and the elastic rope or rubber band contracts and pulls the traction rope through the slider, driving the lower end of the movable frame to pop out and perform a jumping action.

[0011] The traction rope is connected to the upper end of the movable frame and drives the slider to approach the upper end of the movable frame through a tightening action to stretch the elastic rope or rubber band. When the slider moves to the upper end of the movable frame, it pushes the trigger to rotate and release the movable frame. The slider is then subjected to the contraction effect of the elastic rope or rubber band and slides toward the lower end of the fixed frame and pulls the traction rope to drive the released movable frame to move quickly toward the lower end of the fixed frame, so that the lower end of the movable frame pops out toward the outer side of the lower end of the fixed frame and performs a jumping action.

[0012] Furthermore, the fixed frame includes an upper frame and a lower frame located at the upper and lower ends and fixedly connected, a guide rod is arranged between the upper frame and the lower frame, and the slider is slidably mounted on the guide rod and can move linearly along the guide rod.

[0013] Furthermore, one end of the elastic rope or rubber band is fixed on the slider, and the other end is fixed on the upper frame after passing through the lower frame.

[0014] Furthermore, when the front feet and the rear feet are placed on the ground, the moving direction of the movable frame after being released has an angle of 45 degrees with the ground.

[0015] Furthermore, the elastic ropes or rubber bands are in even number and are symmetrically arranged on both sides of the slider.

[0016] Furthermore, a reset spring is arranged between the trigger and the fixing frame.

[0017] Compared with the prior art, the bouncing mechanism of the utility model uses elastic ropes or rubber bands as energy storage elements, has stronger energy storage capacity, higher stability, and reduces energy loss, which helps to achieve longer-distance jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the bouncing mechanism in the embodiment Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the bouncing mechanism in the embodiment Figure 2 ;

[0020] Figure 3 The three-dimensional structure of the bouncing mechanism in the embodiment Figure 3 ;

[0021] Figure 4 The three-dimensional structure of the bouncing mechanism in the embodiment Figure 4 ;

[0022] Figure 5 is a cross-sectional view of the bouncing mechanism in the embodiment;

[0023] Figure 6 A three-dimensional diagram of a movable frame in an embodiment;

[0024] Figure 7 A three-dimensional diagram of a slider in an embodiment;

[0025] Figure 8 It is a three-dimensional diagram of the lower frame in the embodiment.

[0026] In the figure:

[0027] 1——Fixed frame 1a——Upper rack

[0028] 1b——Lower frame 1b1——Sliding hole

[0029] 1c——Guide rod 1d——Fixed rod

[0030] 2——Moveable frame 2a——Mounting seat

[0031] 2b - Slide 3 - Front foot

[0032] 4 - hind foot 5 - trigger

[0033] 6——Slider 6a——Bump

[0034] 7——Rubber band 8——Wire retracting and releasing device

[0035] 8a——rotating disk 8b——motor

[0036] 9——traction rope 10——mounting frame. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the innovative features and implementation methods of the present invention, the following is a detailed description in conjunction with the accompanying drawings and embodiments. It should be noted that the terms "front", "rear", "inside", "outside", etc. used herein are only for the convenience and simplification of description and do not limit the implementation direction or structure of the present invention. Similarly, "multiple" refers to two or more.

[0038] This embodiment provides a bouncing mechanism that innovatively uses elastic ropes or rubber bands to replace traditional springs as the main energy storage element. This design improvement significantly improves the energy storage efficiency and operational stability of the mechanism, while effectively reducing energy loss caused by metal vibration, thereby achieving a longer-distance jumping ability.

[0039] like Figure 1-8 As shown, the bouncing mechanism of this embodiment mainly includes a fixed frame 1 and a movable frame 2. The fixed frame 1 is the main structure of the mechanism, which is composed of an upper frame 1a and a lower frame 1b at the upper and lower ends, and is connected by multiple fixing rods 1d (such as carbon fiber tubes) to ensure stability. The movable frame 2 is slidably connected to the fixed frame 1, and its lower end is located outside the lower end of the fixed frame 1 (lower frame 1b). Figure 6 As shown, the movable frame 2 includes two slide bars 2b, a mounting seat 2a mounted on the upper end of the slide bars 2b, and a rear foot 4 mounted on the lower end of the slide bars 2b. The slide bars 2b are slidably mounted in the slide holes 1b1 of the lower frame 1b to achieve guided sliding of the movable frame 2. In order to improve the movement stability, the fixed rod 1d can be additionally provided with a guide component (not shown in the figure), such as a mounting block mounted on the fixed rod 1d, which is provided with a through hole for the slide bars 2b to pass through.

[0040] The upper end of the fixed frame 1 (upper frame 1a) and the lower end of the movable frame 2 are respectively equipped with front feet 3 and rear feet 4 to provide stable support. Among them, the rear foot 4 is a "sliding rear foot 4" that can move with the movable frame 2, while the front foot 3 is fixed to the fixed frame 1 and is called a "fixed front foot 3". The upper end of the fixed frame 1 (upper frame 1a) is movably connected (for example, hinged) with a trigger 5, which is responsible for locking the upper end of the movable frame 2 before the jumping action occurs, which can be seen in FIG. Figure 5 .

[0041] Two guide rods 1c may be provided between the two ends of the fixed frame 1 (i.e., between the upper frame 1a and the lower frame 1b), and a directional sliding block 6 capable of linearly moving along the guide rods 1c may be installed on the guide rods 1c. In order to simplify the structure and reduce the weight, four fixed rods 1d may be installed between the upper frame 1a and the lower frame 1b, and two of the fixed rods 1d may be used as guide rods 1c. Figure 7 As shown, a protrusion 6a for facilitating pushing the trigger 5 can be provided on the slider 6. The connection between the slider 6 and the fixing frame 1 is achieved through an elastic rope or rubber band 7. Such a design significantly enhances the energy storage capacity of the mechanism. This embodiment is mainly described by taking the rubber band 7 as an example. One end of the elastic rope or rubber band 7 is fixed to the slider 6, and the other end is passed around the lower frame 1b (for example, the pin on the lower frame 1b), and finally fixed to an appropriate position of the upper frame 1a, as shown in FIG. Figure 4 , 5. When the slider 6 moves along the guide rod 1c and stretches the elastic rope or rubber band 7, the stored potential energy provides the necessary power for bouncing. The elastic rope or rubber band 7 not only plays a role in energy storage, but the energy released by it also promotes the rapid release of the movable frame 2, thereby achieving an efficient bouncing action. In addition, the elastic properties of the elastic rope or rubber band 7 also ensure that it can rebound smoothly to the initial state after bouncing, making continuous jumping possible. In order to improve the energy storage capacity, this embodiment uses an even number (for example, two) of elastic ropes or rubber bands 7, which are symmetrically arranged on both sides of the slider 6.

[0042] like Figure 1 As shown, the fixed frame 1 is provided with a wire-retracting device 8, which is installed on the lower frame 1b and is equipped with a traction rope 9. The traction rope 9 connects the upper end of the movable frame 2 and the slider 6. Through the tightening action of the traction rope 9, the slider 6 is driven to move toward the upper end of the movable frame 2, thereby stretching the elastic rope or rubber band 7. Figure 1-3 As shown, the traction rope 9 is led out by the retractable wire device 8, and passes through the lower frame 1b, the upper end of the movable frame 2 (mounting seat 2a), the slider 6, the upper end of the movable frame 2 (mounting seat 2a) in sequence according to a predetermined path, and is finally fixed on the lower frame 1b to achieve mechanical connection between the components. Specifically, the traction rope 9 passes through the preset connection holes on each component, and the positioning and guiding functions of these holes are utilized to ensure the accuracy and stability of the traction rope 9 when transmitting power. This design not only simplifies the wiring of the traction rope 9, but also enhances the synchronization and coordination of the mechanism when performing jumping actions. The connection path of the traction rope 9 can be seen in Figure 3 It should be noted that the specific connection path of the traction rope 9 can be adjusted according to actual conditions, and this embodiment does not limit it.

[0043] The slider 6 is driven by the tightened traction rope 9 to move toward the upper frame 1a. When the slider 6 moves into place, it will push the trigger 5 to rotate, thereby releasing the movable frame 2. Subsequently, the contraction of the elastic rope or rubber band 7 drives the slider 6 to slide toward the lower end of the fixed frame 1 (lower frame 1b), and pulls the traction rope 9, causing the lower end of the movable frame 2 to pop out to the outside of the lower end of the fixed frame 1 (lower frame 1b). At this time, the hind foot 4 pushes the ground backward along the guide rod 1c to complete the jumping action. This design allows the force of the elastic rope or rubber band 7 to be efficiently transmitted to the sliding hind foot 4 (movable frame 2), thereby reducing energy loss. Among them, when the movable frame 2 is released, the traction rope 9 is usually no longer tightened or relaxed, so that the length of the traction rope 9 remains unchanged, so when the slider 6 moves toward the lower frame 1b, the movable frame 2 can be pulled by the traction rope 9.

[0044] The bouncing mechanism of this embodiment optimizes the energy storage and release process, improves the overall performance, and can be applied to application scenarios that require higher jumping capabilities.

[0045] In this embodiment, in order to ensure that the jumping mechanism can be recycled, a reset spring (not shown in the figure) can be provided between the trigger 5 and the upper frame 1a. The reset spring can also be replaced by other elastic reset components. The function of the reset spring is to automatically push the trigger 5 back to the initial position after each jumping action is completed. The reset process is as follows: 1. After the jump is completed, the reset spring acts to automatically return the trigger 5 to the initial position. 2. Then, the operator needs to manually move the upper end of the movable frame 2 to the trigger 5. 3. The trigger 5 is buckled with the upper end of the movable frame 2 (mounting seat 2a) to prepare for the next jumping action. 4. Finally, the slider 6 is slid along the guide rod 1c to its lowest position, that is, close to the lower frame 1b, to complete the entire reset process. Among them, the reset spring can also ensure that the trigger 5 effectively locks the movable frame 2 before the slider 6 pushes the trigger 5 to prevent it from automatically disengaging.

[0046] In this embodiment, the front foot 3 and the rear foot 4 of the jumping mechanism can be configured to have adjustable bottom surfaces, allowing the operator to adjust the angle between them and the ground according to specific jumping requirements. In particular, after the movable frame 2 is released, it can be configured to form a 45-degree angle with the ground, which is considered to be the optimal angle for achieving the most effective ejection. Of course, the jumping angle can be customized according to different application scenarios and jumping targets to achieve a variety of jumping performances.

[0047] In this embodiment, if Figure 1 As shown, the retractable wire device 8 mainly includes a rotating disk 8a and a motor 8b driving the rotating disk 8a to rotate, and one end of the traction rope 9 is fixed on the rotating disk 8a. The retractable wire rope 9 can be realized by the forward and reverse rotation of the rotating disk 8a. The motor 8b can be installed on the lower frame 1b through the mounting frame 10, and a battery can be installed on the mounting frame 10 for power supply. Of course, the retractable wire device 8 can also adopt other structures.

[0048] In this embodiment, the upper frame 1a, the lower frame 1b, the rear foot 4 and other components can be made of PLA (polylactic acid) material through 3D printing technology. PLA is a biodegradable thermoplastic with excellent printing performance and reasonable cost-effectiveness, suitable for rapid prototyping of complex structures. The front foot 3, the guide rod 1c, the fixed rod 1d, the slide rod 2b and other components that need to withstand greater stress can be made of carbon fiber material. Carbon fiber is known for its excellent strength-to-weight ratio and can provide excellent mechanical properties while maintaining the lightness of the overall structure. Precision components such as the trigger 5 and the slide 6 can be processed from 7075 aluminum alloy. 7075 aluminum alloy is a high-strength aluminum alloy that is often used in applications that need to withstand heavy loads and high stresses. It has excellent processing performance and is suitable for manufacturing precision mechanical parts. Through the combination of these materials and processes, the overall weight of the bouncing mechanism can be controlled within 100 grams (for example, 68 grams), achieving miniaturization and lightweight, while ensuring the strength and durability of the structure, and is suitable for a wide range of application scenarios.

[0049] Compared with the traditional spring drive mechanism, the bouncing mechanism of this embodiment uses an elastic rope or rubber band 7 as an energy storage element, showing the following significant advantages: 1. Energy storage capacity: The elastic rope or rubber band 7 can store more potential energy, providing the mechanism with a stronger jumping power. 2. Stability: Compared with metal springs, the elastic rope or rubber band 7 shows higher stability, ensuring the reliability of the long-term operation of the mechanism. 3. Energy efficiency: Due to the non-metallic material of the elastic rope or rubber band 7, the energy loss caused by metal vibration is effectively reduced, and the energy conversion efficiency is improved. 4. Jumping performance: Thanks to the above advantages, the present bouncing mechanism can achieve a longer distance jump and meet higher application requirements.

[0050] This embodiment is only one of the preferred implementations of the utility model and does not constitute a limitation on the protection scope of the utility model. Any technician familiar with the field can make equivalent embodiments or make appropriate modifications without departing from the technical solution of the utility model, and these embodiments or modifications fall within the protection scope of the utility model.

Claims

1. A bouncing mechanism, characterized in that: include: A fixed frame (1), and a movable frame (2) slidably connected thereto, wherein the lower end of the movable frame (2) is located outside the lower end of the fixed frame (1); The front foot (3) and the rear foot (4) are respectively arranged at the upper end of the fixed frame (1) and the lower end of the movable frame (2); A trigger (5) is movably connected to the upper end of the fixed frame (1) and is used to lock the upper end of the movable frame (2) before jumping; A slider (6) can slide directionally on the fixing frame (1) and is connected to the fixing frame (1) via an elastic cord or a rubber band (7); A wire-retracting and -releasing device (8) is mounted on the lower end of the fixed frame (1) and is equipped with a traction rope (9), wherein the traction rope (9) connects the upper end of the movable frame (2) and the slider (6) and is used to drive the slider (6) to move and stretch the elastic rope or rubber band (7); After the slider (6) moves into position, it pushes the trigger (5) to rotate to release the movable frame (2), and the elastic rope or rubber band (7) contracts and pulls the traction rope (9) through the slider (6), driving the lower end of the movable frame (2) to pop out and perform a jumping action.

2. The bouncing mechanism according to claim 1, characterized in that: The fixed frame (1) comprises an upper frame (1a) and a lower frame (1b) located at upper and lower ends and fixedly connected, a guide rod (1c) is provided between the upper frame (1a) and the lower frame (1b), and the slider (6) is slidably mounted on the guide rod (1c) and can move linearly along the guide rod (1c).

3. The bouncing mechanism according to claim 2, characterized in that: One end of the elastic rope or rubber band (7) is fixed to the slider (6), and the other end is passed around the lower frame (1b) and then fixed to the upper frame (1a).

4. The bouncing mechanism according to claim 1, characterized in that: When the front foot (3) and the rear foot (4) are placed on the ground, the moving direction of the movable frame (2) after being released has an angle of 45 degrees with the ground.

5. The bouncing mechanism according to claim 1, characterized in that: The elastic ropes or rubber bands (7) are in even number and are symmetrically arranged on both sides of the slider (6).

6. The bouncing mechanism according to claim 1, characterized in that: A resetting spring is provided between the trigger (5) and the fixing frame (1).

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