Bionic frog bouncing structure

Abstract

The utility model discloses a bionic frog bouncing structure, which belongs to the technical field of bionic frog bouncing, and comprises a bionic frog body, and a driving rod is arranged above the bionic frog body; the limiting unhook is arranged on the bionic frog body; the energy storage part is arranged on the bionic frog body; the two bouncing parts are symmetrically arranged on the bionic frog body, the two bouncing parts are connected with the two ends of the driving rod correspondingly, and when the driving rod is separated from the limiting unhook and moves, the bouncing parts can be driven to bounce; according to the scheme, after the energy storage component releases energy, the driving rod acts on the bouncing component when moving rapidly, the bouncing component bounces rapidly, the best bouncing angle of 45 degrees is kept until the bouncing component is completely unfolded, leg skeleton movement of the frog is simulated through the bouncing component, and on the basis that the bouncing reliability of the bionic frog is guaranteed, the bouncing effect is greatly improved. The weight is reduced as much as possible, light-weight design is achieved, and therefore more efficient jumping movement can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bionic frog bouncing, and more particularly to a bionic frog bouncing structure. Background Art

[0002] Bionic frog refers to the process in the field of bionics where designers draw on the characteristics and functions of frogs to design and create mechanical devices or systems. Frogs possess many unique biological traits and behaviors, particularly renowned for their remarkable jumping ability. This ability is currently being studied to develop robots with similar leaping capabilities, which could be used to explore complex terrain or perform specific tasks. Bionic frog projects are also frequently featured in innovation competitions, encouraging students and researchers to utilize biological principles and technological means to create innovative works that replicate the leaping capabilities of frogs.

[0003] The current bionic frog's jumping structure cooperates with its energy storage structure to achieve jumping operations. However, the current bionic frog is heavy and large in size, and under the condition of its limited energy storage, the bionic frog's jumping distance is short, and its structure is relatively complex, with high design and production costs. It cannot achieve the biological characteristics of frog jumping, and the jumping effect is poor.

[0004] Therefore, it is necessary to provide a bionic frog jumping structure to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a bionic frog jumping structure to solve the above technical problems.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A bionic frog jumping structure, comprising:

[0008] A bionic frog body, wherein an active rod is provided above the bionic frog body;

[0009] A limit release hook is provided on the bionic frog body and is used to limit the active rod;

[0010] An energy storage component is provided on the bionic frog body and is used to enable the active rod to break away from the restriction of the limit release hook and move;

[0011] There are two bouncing components symmetrically arranged on the bionic frog body, and the two bouncing components are respectively connected to the two ends of the active rod. When the active rod is separated from the limit release hook and moves, it will drive the bouncing components to bounce.

[0012] Furthermore, the bouncing component includes:

[0013] An upper crossbar, both ends of which are rotatably arranged on the side of the bionic frog body through an axis, and a thigh rod and a calf rod are rotatably arranged on both ends of the upper crossbar, and one end of the thigh rod is connected to the active rod;

[0014] One end of the lower cross bar is rotatably arranged on the other end of the thigh bar through an axis, and the other end of the lower cross bar is rotatably connected to the calf bar through an axis.

[0015] Furthermore, a fin plate is provided below the bionic frog body, a support plate is provided on the fin plate, a rotating rod is rotatably provided on the support plate, and one end of the calf rod away from the upper cross bar is connected to the rotating rod.

[0016] Furthermore, the energy storage component includes:

[0017] A row of swords is arranged above the bionic frog body, and a pulley rope is connected to the row of swords;

[0018] An elastic member, both ends of which are respectively sleeved on the row of swords and the active rod;

[0019] The driving assembly is arranged below the bionic frog body and drives the row of swords to move by cooperating with the pulley rope.

[0020] Furthermore, a decoupling bracket is provided on the bionic frog body, a decoupling shaft is rotatably provided on the decoupling bracket, the limiting decoupling is connected to the decoupling shaft, a hook rope is provided on the limiting decoupling, and the other end of the hook rope is connected to the row of swords.

[0021] Furthermore, the driving assembly includes two driving members symmetrically arranged at the bottom of the bionic frog body, the output end of the driving member is provided with a driving shaft, and the two ends of the pulley rope are respectively connected to the two driving shafts.

[0022] Furthermore, a pulley sleeve is provided on the bionic frog body, a fixed pulley is rotatably provided on the pulley sleeve, and a movable pulley is provided on the row of swords. The other end of the pulley rope on one of the driving shafts passes through each of the fixed pulleys and movable pulleys in turn and is connected to the other driving shaft.

[0023] Furthermore, the bionic frog body is provided with a battery, and the battery is electrically connected to the driving component.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. In this solution, after the energy storage component releases energy, the active rod will act on the bouncing component when it moves rapidly, and the bouncing component will bounce quickly, driving the entire bionic frog to jump. The entire bionic frog is ejected at a forty-five-degree angle. Through the ingenious design of the bouncing component and the cooperation of the energy storage component, the overall weight and size of the bionic frog are small. At the same time, the bouncing component imitates the movement of the frog's leg bones. On the basis of ensuring the reliability of the bionic frog's jumping, the weight is reduced as much as possible to achieve a lightweight design, thereby achieving a more efficient jumping movement. The structure is simple and ingenious, the design and production cost is low, and the characteristics of frog jumping can be effectively achieved, with a good jumping effect.

[0026] 2. In this solution, the groove on the inner side of the limit release hook is formed by two smoothly connected arcs, wherein the inner arc is an arc tangent to the outer side of the active rod, and the outer arc is an arc with the axis of the release shaft as the rotation center C and the distance from C to the axis B of the active rod as the radius. These two arcs are smoothly connected and intersect with the arc with the center of the thigh rod as the rotation center A and the distance from A to the axis B of the active rod as the radius. This structure allows the limit release hook to be placed at the blocking point of the active rod, so that the bionic frog can prevent the active rod from moving during the energy storage stage, and the elastic part can be effectively stretched to obtain more stored energy; and at the moment of energy release, the limit release hook can be smoothly released by rotating along the release shaft and released instantly.

[0027] 3. In this scheme, when the stored energy is released, the active rod will drive the thigh rod to rotate, and then drive the lower crossbar and calf rod to unfold. Finally, the calf rod will bounce off the ground, and finally drive the entire bionic frog off the ground, and move freely in the air under the action of inertia until the bouncing component is fully unfolded, completing the ejection process, reducing air resistance, better releasing the stored energy, and achieving the longest jumping distance of the bionic frog under limited energy storage conditions. The structure is simple and reliable, and the strength is guaranteed with minimal weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the components of the bionic frog body of the utility model in the initial natural state;

[0029] Figure 2 This is a schematic diagram of the structure of the utility model in other viewing angles in its initial natural state;

[0030] Figure 3 This is a schematic diagram of the bottom perspective structure of the bionic frog body in the initial natural state of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the utility model in the energy storage state;

[0032] Figure 5This is a schematic diagram of the side cross-sectional three-dimensional structure of the bionic frog body in the energy storage state of the utility model;

[0033] Figure 6 This is a schematic diagram of the side cross-sectional planar structure of the bionic frog body in the energy storage state of the utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the utility model in the released state;

[0035] Figure 8 This is a schematic diagram of the state structure of the utility model during the take-off process;

[0036] Figure 9 This is a schematic diagram of the structure of the utility model after it bounces off the ground.

[0037] Description of the numbers in the figure:

[0038] 1. Bionic frog body; 2. Active rod; 3. Limit unhooking; 4. Energy storage component; 41. Row of swords; 411. Upper row of plates; 412. Lower row of plates; 42. Pulley rope; 43. Elastic member; 44. Driving assembly; 441. Driving member; 442. Driving shaft; 5. Bouncing component; 51. Upper crossbar; 52. Thigh bar; 53. Calf bar; 54. Lower crossbar; 6. Flipper board; 7. Support plate; 8. Unhooking bracket; 9. Unhooking shaft; 10. Hook rope; 11. Pulley sleeve; 12. Fixed pulley; 13. Movable pulley; 14. Battery. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0042] See also Figure 1-9 A bionic frog bouncing structure includes: a bionic frog body 1, with an active rod 2 provided above the bionic frog body 1; a limit release hook 3 provided on the bionic frog body 1, used to limit the active rod 2; an energy storage component 4 provided on the bionic frog body 1, used to make the active rod 2 break away from the limit release hook 3 and move; two bouncing components 5 are provided and symmetrically arranged on the bionic frog body 1, and the two bouncing components 5 are respectively connected to the two ends of the active rod 2. When the active rod 2 breaks away from the limit release hook 3 and moves, it will drive the bouncing component 5 to bounce.

[0043] In the initial state Figure 1-3 As shown, the active rod 2 is restrained by the energy storage component 4, which is in its natural state. The bouncing component 5 does not move and is in a folded state, which can simulate the legs of a bionic frog. When energy is stored, the energy storage component 4 can be used to store energy. At this time, the limit release hook 3 is still hooked to the active rod 2, restricting the active rod 2. When the energy storage component 4 releases the stored energy, the limit release hook 3 releases the restriction on the active rod 2, and the active rod 2 is disengaged from the limit release hook 3. The energy storage component 4 drives the active rod 2 to move rapidly. Then, when the active rod 2 moves rapidly, it acts on the bouncing component 5, causing the bouncing component 5 to quickly bounce, driving the entire bionic frog to jump, that is, cooperating with the energy storage component 4 to achieve a jumping operation.

[0044] The bouncing component 5 generates a downward pushing force, and the structural size design of the bouncing component 5 drives the entire bionic frog in the present application to be ejected at a forty-five-degree angle. The ingenious design of the bouncing component 5 and the cooperation of the energy storage component 4 make the overall weight and size of the bionic frog smaller, which makes the bionic frog jump a long distance. At the same time, the bouncing component 5 imitates the movement of the frog's leg bones. On the basis of ensuring the reliability of the bionic frog's jumping, the weight is reduced as much as possible to achieve a lightweight design, thereby achieving a more efficient jumping movement. The structure is simple and ingenious, the design and production cost is low, and the characteristics of frog jumping can be effectively achieved, with a good jumping effect.

[0045] In this embodiment, preferably, please refer to Figure 1-4 and Figure 6-9 The bouncing component 5 includes: an upper cross bar 51, both ends of which are rotatably arranged on the side of the bionic frog body 1 through an axis, and a thigh bar 52 and a calf bar 53 are rotatably arranged at both ends of the upper cross bar 51, and one end of the thigh bar 52 is connected to the active rod 2; a lower cross bar 54, one end of which is rotatably arranged on the other end of the thigh bar 52 through an axis, and the other end of the lower cross bar 54 is rotatably connected to the calf bar 53 through an axis.

[0046] In the natural state and energy storage stage, the upper crossbar 51, lower crossbar 54, thigh bar 52 and shank bar 53 of the bouncing component 5 are all in a folded state, imitating the leg bone structure of a frog. When the stored energy is released, the active rod 2 will drive the bouncing component 5 to move. During the energy release process, after the active rod 2 is released from the control of the limit release hook 3, the active rod 2 moves, and the active rod 2 drives the thigh bar 52 to rotate, which in turn drives the lower crossbar 54 and shank bar 53 to unfold. When the thigh bar 52 and shank bar 53 are unfolded and perpendicular to the ground, the upper crossbar 51 and the lower crossbar 54 are parallel to the ground. Figure 8 As shown, the center of gravity of the bionic frog is tilted at a forty-five-degree angle to the bottom end of the calf rod 53, that is, at this time, the angle between the bionic frog and the ground is forty-five degrees. Subsequently, as the energy of the energy storage component 4 continues to be released, the calf rod 53 will eventually bounce off the ground, and eventually drive the entire bionic frog off the ground, and move freely in the air under the action of inertia, maintaining the optimal jumping angle of forty-five degrees.

[0047] Under the combined effect of the residual force and inertia of the energy storage component 4, the body of the bionic frog bounces up, and the active rod 2 continues to move and rotates through the shank rod 53 until it is fully deployed, causing the bionic frog to fly forward and upward, completing the ejection process. Figure 9 The bionic frog's body is stretched flat, and the jumping component 5 extends at a 45-degree angle, reducing air resistance and effectively releasing stored energy, achieving the longest possible jump distance for the bionic frog under limited energy storage conditions. The bionic frog jumping device of the present invention has a simple and reliable structure, a low-cost design, and ensures strength with minimal weight, enabling the bionic frog to jump long distances under limited energy storage conditions with excellent jumping performance.

[0048] In this embodiment, preferably, please refer to Figure 1-4 and Figure 6-9 The bionic frog body 1 is further provided with a fin board 6 below, and a support board 7 is provided on the fin board 6. A rotating rod is rotatably provided on the support board 7, and the end of the calf rod 53 away from the upper cross bar 51 is connected to the rotating rod. The provision of the fin board 6 not only supports the ground in the initial state and the energy storage state, ensuring the stability of the bionic frog, but also increases the area of the ground when the bouncing part 5 jumps, which can better achieve the jumping operation.

[0049] In this embodiment, preferably, please refer to Figure 1-8The energy storage component 4 includes: a row of swords 41, which is located above the bionic frog body 1 and is connected to a pulley rope 42; an elastic member 43, the two ends of which are respectively sleeved on the row of swords 41 and the active rod 2; a driving component 44, which is located below the bionic frog body 1 and drives the row of swords 41 to move by cooperating with the pulley rope 42. The elastic member 43 in this application can be a rubber band. The use of rubber bands is low-cost and light-weight, and has a good energy storage effect, which is more in line with the characteristics of the bionic frog. The row of swords 41 can be driven to move by the pulley rope 42 through the drive of the driving component 44, and the movement of the row of swords 41 will stretch the elastic member 43. Figure 4-6 After the elastic member 43 is stretched, the energy storage is completed, that is, the energy storage effect is achieved.

[0050] In this embodiment, preferably, please refer to Figure 1-9 A decoupling bracket 8 is provided on the bionic frog body 1, and a decoupling shaft 9 is rotatably provided on the decoupling bracket 8. The limit decoupling hook 3 is connected to the decoupling shaft 9. The limit decoupling hook 3 is provided with a hook rope 10, and the other end of the hook rope 10 is connected to the row sword 41.

[0051] like Figure 5-6 The groove on the inner side of the limit unhooking 3 is formed by two smoothly connected arcs, wherein the inner arc is an arc tangent to the outer side of the active rod 2, and the outer arc is an arc with the axis of the unhooking shaft 9 as the rotation center C and the distance from C to the axis B of the active rod 2 as the radius. The two arcs are smoothly connected and intersect with the arc with the center of the thigh rod 52 as the rotation center A and the distance from A to the axis B of the active rod 2 as the radius. This structure can place the limit unhooking 3 at the blocking point position of the active rod 2, so that the bionic frog can prevent the active rod 2 from moving during the energy storage stage, and the elastic member 43 can be effectively stretched to obtain more stored energy; and at the moment of energy release, the limit unhooking 3 can be rotated along the unhooking shaft 9 to be smoothly released and released instantly.

[0052] That is, when the hook rope 10 is hooked on the active rod 2 in the initial natural state, the hook rope 10 is also in a relaxed state. Figure 1-2 and when energy is stored, the row of swords 41 moves and drives the hook rope 10 so that it gradually straightens. Figure 4-6 The state shown; when the stored energy is released, the row of swords 41 continues to move. At this time, the hook rope 10 in the straightened state is in a critical state. After the row of swords 41 continues to pull the hook rope 10, the hook rope 10 will drive the limit release hook 3 to rotate along the release axis 9. The limit release hook 3 will be free from the restriction on the active rod 2, and the active rod 2 will move together with the energy release of the elastic member 43.

[0053] In this embodiment, preferably, please refer to Figure 1-5The driving assembly 44 includes two driving members 441 symmetrically arranged at the bottom of the bionic frog body 1. The output end of the driving member 441 is provided with a driving shaft 442. The two ends of the pulley rope 42 are respectively connected to the two driving shafts 442. The driving member 441 in this application adopts a servo motor, and a gap is provided between the ends of the two driving shafts 442. After the driving member 441 is started, it will drive the driving shaft 442 to rotate. When storing energy, the driving shaft 442 will wrap around the pulley rope 42. The pulley rope 42 will drive the row of swords 41 to move while being wrapped. By adopting two driving members 441, not only can the efficiency of the energy storage power of the bionic frog of this application be improved, but the setting of the two driving members 441 can also be conducive to adjusting the center of gravity of the bionic frog. There is a gap between the two driving shafts 442, which avoids the problem of misalignment caused by the two driving shafts 442 during installation, thereby ensuring its normal use.

[0054] The bionic frog body 1 is also provided with a battery 14, which is electrically connected to the driving member 441. By charging the battery 14, the driving member 441 can be powered after being fully charged, without the need for an external power supply, which is convenient for use.

[0055] In this embodiment, preferably, please refer to Figure 1-9 A pulley sleeve 11 is provided on the bionic frog body 1, and a fixed pulley 12 is rotatably provided on the pulley sleeve 11. A movable pulley 13 is provided on the row of swords 41. The other end of the pulley rope 42 on one of the driving shafts 442 passes through each fixed pulley 12 and movable pulley 13 back and forth in sequence and is connected to another driving shaft 442.

[0056] After one end of the pulley rope 42 is connected to one of the drive shafts 442, the other end will sequentially pass from the fixed pulley 12 to the movable pulley 13, then to another fixed pulley 12, and then to another movable pulley 13, passing back and forth in sequence, and finally the other end of the pulley rope 42 is connected to another drive shaft 442. By using this fixed pulley 12 and movable pulley 13 combination, when storing energy, a single pulley rope 42 can drive multiple movable pulleys 13 to move. This structure can effectively increase the driving stroke. Although the energy storage time required to ultimately move the row of swords 41 and stretch the elastic member 43 is slightly longer, the use of multiple movable pulleys 13 can save more effort, eliminating the need for a high-power motor, reducing the overall weight and volume, that is, trading time for volume and effort. It can also greatly increase the stretching distance of the elastic member 43, increasing the energy storage capacity and achieving a longer jumping distance. The design and production cost of this structure is low, and it largely realizes the energy storage of the bionic frog, which is practical and ingenious.

[0057] The row of swords 41 includes an upper row of plates 411 and a lower row of plates 412. The upper row of plates 411 and the lower row of plates 412 are connected to each other, and the multiple movable pulleys 13 are located between the upper row of plates 411 and the lower row of plates 412. The arrangement of the upper row of plates 411 and the lower row of plates 412 can define the positions of the multiple movable pulleys 13 and effectively protect the multiple movable pulleys 13 and the pulley ropes 42.

[0058] It should be understood that the examples and implementation methods described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0059] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0060] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A bionic frog jumping structure, characterized in that: include: A bionic frog body (1), wherein an active rod (2) is provided above the bionic frog body (1); A limit release hook (3) is provided on the bionic frog body (1) and is used to limit the active rod (2); An energy storage component (4) is provided on the bionic frog body (1) and is used to enable the active rod (2) to escape from the restriction of the limit release hook (3) and move; Two bouncing components (5) are provided and symmetrically arranged on the bionic frog body (1), and the two bouncing components (5) are respectively connected to the two ends of the active rod (2). When the active rod (2) is separated from the limit release hook (3) and moves, it drives the bouncing components (5) to bounce.

2. The bionic frog jumping structure according to claim 1, characterized in that: The bouncing component (5) comprises: An upper crossbar (51), both ends of which are rotatably arranged on the side of the bionic frog body (1) via an axis, a thigh rod (52) and a calf rod (53) are rotatably arranged at the two ends of the upper crossbar (51), and one end of the thigh rod (52) is connected to the active rod (2); One end of the lower cross bar (54) is rotatably arranged on the other end of the thigh bar (52) through an axis, and the other end of the lower cross bar (54) is rotatably connected to the calf bar (53) through an axis.

3. The bionic frog jumping structure according to claim 2, characterized in that: A fin plate (6) is further provided below the bionic frog body (1), a support plate (7) is provided on the fin plate (6), a rotating rod is rotatably provided on the support plate (7), and one end of the calf rod (53) away from the upper cross bar (51) is connected to the rotating rod.

4. The bionic frog jumping structure according to claim 1, characterized in that: The energy storage component (4) comprises: A row of swords (41) is arranged above the bionic frog body (1), and a pulley rope (42) is connected to the row of swords (41); An elastic member (43), the two ends of which are respectively sleeved on the row of swords (41) and the active rod (2); A driving assembly (44) is provided below the bionic frog body (1) and drives the row of swords (41) to move by cooperating with the pulley rope (42).

5. The bionic frog jumping structure according to claim 4, characterized in that: The bionic frog body (1) is provided with a decoupling bracket (8), a decoupling shaft (9) is rotatably provided on the decoupling bracket (8), the position-limiting decoupling hook (3) is connected to the decoupling shaft (9), the position-limiting decoupling hook (3) is provided with a hook rope (10), and the other end of the hook rope (10) is connected to the row of swords (41).

6. The bionic frog jumping structure according to claim 4, characterized in that: The driving assembly (44) comprises two driving members (441) symmetrically arranged at the bottom of the bionic frog body (1); the output end of the driving member (441) is provided with a driving shaft (442); and the two ends of the pulley rope (42) are respectively connected to the two driving shafts (442).

7. The bionic frog jumping structure according to claim 6, characterized in that: The bionic frog body (1) is provided with a pulley sleeve (11), a fixed pulley (12) is rotatably provided on the pulley sleeve (11), and a movable pulley (13) is provided on the row of swords (41), and the other end of the pulley rope (42) on one of the driving shafts (442) passes through each of the fixed pulleys (12) and the movable pulley (13) in sequence and is connected to another driving shaft (442).

8. The bionic frog jumping structure according to claim 6, characterized in that: The bionic frog body (1) is also provided with a battery (14), and the battery (14) is electrically connected to the driving member (441).

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