Inertial energy storage driven toy for children

Abstract

The present application relates to the technical field of children's toys, in particular to a children's toy driven by inertia energy storage, comprising a vehicle body, wheels and a flywheel unit; the flywheel unit comprises a flywheel body; the flywheel body is provided with a plurality of first counterweights and second counterweights; a first return spring is arranged between the first counterweights and the flywheel body; a second return spring is arranged between the second counterweights and the flywheel body. Through the cooperation of centrifugal force and return springs, the radial position of the counterweights can be automatically adjusted according to the pushing force of the vehicle body; when the vehicle is pushed gently, the small rotational inertia is automatically maintained, and when the vehicle is pushed with great force, the large rotational inertia is automatically switched to; in the small rotational inertia gear, the overall counterweight of the flywheel body is close to the center of the circle, the force storage resistance is small, and the vehicle can be easily pushed by young children; in the large rotational inertia gear, the counterweight moves outward to increase the effective rotational radius of the flywheel body, the energy storage capacity is significantly improved, the sliding distance of the vehicle is prolonged, and the racing needs of older children are met.

Description

Technical Field

[0001] This invention relates to the field of children's toy technology, and more specifically to an inertial energy storage driven children's toy. Background Technology

[0002] Inertia-powered toy cars are a classic category with a wide audience in the children's toy market. Their core principle is to drive the wheels to rotate the built-in flywheel at high speed to store kinetic energy. When the flywheel releases energy, it drives the wheels to glide continuously. No battery power is required, and it has the advantages of being environmentally friendly, durable, and easy to operate.

[0003] Currently, most conventional inertia toy cars on the market use a fixed-weight integrated flywheel structure. The flywheel's mass distribution and inner and outer diameter dimensions are fixed values, and the moment of inertia cannot be adjusted, creating an intractable technical contradiction. When the flywheel's weight is biased towards the inner ring, the effective rotation radius and moment of inertia are small, meaning that even with strong pushing, it cannot store enough kinetic energy, resulting in a short gliding distance and insufficient entertainment value. When the flywheel's weight is biased towards the outer ring, the effective rotation radius and moment of inertia are large. Although this results in strong energy storage capacity and a long gliding distance, the resistance is too great when young children push it lightly to store energy, making it difficult to push and challenging to master, which can easily dampen children's interest in playing. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing an inertial energy storage driven children's toy.

[0005] The objective of this invention is achieved through the following technical solution: an inertial energy storage driven children's toy, comprising a body, a wheel rotatably disposed on the body, and a flywheel unit rotatably disposed within the wheel; a linkage component is provided between the flywheel unit and the wheel; The flywheel unit includes a flywheel body; the flywheel body is provided with a plurality of first counterweights and second counterweights arranged alternately along the circumference; the first counterweights and second counterweights are slidably arranged along the diameter of the flywheel body; a fixing hole is provided through the center of the flywheel body; A first return spring is provided between the end of the first counterweight away from the fixing hole and the flywheel body; a second return spring is provided between the end of the second counterweight away from the fixing hole and the flywheel body. A first locking assembly is provided between the first counterweight, the flywheel body, and the second counterweight; a second locking assembly is provided between the second counterweight and the flywheel body.

[0006] The present invention is further configured such that the first locking component includes a first locking pin, a first locking hole penetrating the flywheel body, and a connecting hole provided in the second counterweight; When the second counterweight moves to the end near the fixing hole, the bottom of the first locking pin passes through the first locking hole and the connecting hole in sequence.

[0007] The present invention is further configured such that the first locking assembly includes a guide rod connected to the first locking pin and a guide groove disposed on the first counterweight; the guide rod is movably disposed in the guide groove.

[0008] The present invention is further configured such that the guide groove includes a vertical guide groove disposed at the end of the first counterweight away from the fixing hole, an inclined guide groove disposed at the end of the first counterweight close to the fixing hole, and a horizontal guide groove disposed between the vertical guide groove and the inclined guide groove; the horizontal guide groove extends along the diameter direction of the flywheel body. The top of the vertical guide groove is provided with a first locking spring for abutting against the guide rod.

[0009] The present invention is further configured such that the second locking assembly includes a second locking pin telescopically movably disposed on the top of the second counterweight and a second locking hole penetrating the flywheel body; a second locking spring is provided between the bottom of the second locking pin and the second counterweight; when the second counterweight moves to one end away from the fixing hole, the top of the second locking pin passes through the second locking hole.

[0010] The present invention is further configured such that the second counterweight is fan-shaped.

[0011] The present invention is further configured such that the second counterweight has driving inclined surfaces on both sides for abutting against the bottom of the first locking pin.

[0012] The present invention is further configured such that the top of the flywheel body is provided with a limiting groove extending along the diameter direction of the flywheel body; the first counterweight is slidably disposed in the limiting groove; the flywheel body is provided with a limiting rod extending along the diameter direction of the flywheel body; and the second counterweight is slidably disposed outside the limiting rod.

[0013] The invention is further configured such that an unlocking rod is provided on the outer edge of the vehicle body in a horizontally telescopic manner; an unlocking spring is provided between the unlocking rod and the vehicle body; an unlocking ring is connected to the unlocking rod; a permanent magnet ring is provided at the bottom of the unlocking ring; the second locking pin is a permanent magnet; and the magnetism of the bottom surface of the unlocking ring is the same as the magnetism of the top surface of the second locking pin.

[0014] The present invention is further configured such that the linkage assembly includes a drive shaft rotatably mounted on the vehicle body, a first gear fixedly connected to the drive shaft, a second gear rotatably mounted on the vehicle body, a third gear coaxially driven with the second gear, a fourth gear rotatably mounted on the vehicle body, a first bevel gear coaxially driven with the fourth gear, a main shaft disposed in a fixed hole, and a second bevel gear connected to the main shaft; the first gear meshes with the second gear; the third gear meshes with the fourth gear; the first bevel gear meshes with the second bevel gear; and the drive shaft is connected to the wheel.

[0015] The beneficial effects of this invention are as follows: By combining centrifugal force with a return spring, this invention can automatically adjust the radial position of the counterweight according to the magnitude of the thrust used to push the vehicle body; it automatically maintains a small moment of inertia when pushed lightly, and automatically switches to a large moment of inertia when pushed hard; in the small moment of inertia setting, the overall counterweight of the flywheel body is close to the center, resulting in low resistance to energy storage, making it easy for young children to push; in the large moment of inertia setting, the counterweight moves outward, increasing the effective rotation radius of the flywheel body, significantly improving energy storage capacity, and extending the gliding distance of the vehicle, thus meeting the racing needs of older children. Attached Figure Description

[0016] The invention will be further illustrated with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a diagram of the internal structure of the present invention; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is an internal structural diagram from another perspective of the present invention; Figure 5 This is a schematic diagram of the flywheel unit of the present invention; Figure 6 This is a cross-sectional view of the flywheel unit of the present invention; Figure 7 This is a cross-sectional view of the flywheel unit of the present invention from another perspective; The components include: 1. Body; 11. Wheel; 12. Drive shaft; 2. Flywheel body; 21. Fixing hole; 22. First locking hole; 23. Second locking hole; 3. First counterweight; 31. First return spring; 4. Second counterweight; 41. Second return spring; 42. Connecting hole; 43. Second locking pin; 44. Second locking spring; 45. Drive inclined surface; 51. First locking pin; 52. Guide rod; 61. Vertical guide groove; 62. Horizontal guide groove; 63. Inclined guide groove; 64. First locking spring; 71. Limiting groove; 72. Limiting rod; 81. Unlocking rod; 82. Unlocking spring; 83. Unlocking ring; 84. Permanent magnet ring; 91. First gear; 92. Second gear; 93. Third gear; 94. Fourth gear; 95. First bevel gear; 96. Second bevel gear; 97. Main shaft. Detailed Implementation

[0018] The present invention will be further described in conjunction with the following embodiments.

[0019] Depend onFigures 1 to 7 As can be seen, the inertial energy storage driven children's toy described in this embodiment includes a body 1, a wheel 11 rotatably disposed on the body 1, and a flywheel unit rotatably disposed in the wheel 11; a linkage component is provided between the flywheel unit and the wheel 11. The flywheel unit includes a flywheel body 2; the flywheel body 2 is provided with a plurality of first counterweights 3 and second counterweights 4 alternately distributed along the circumference; the first counterweights 3 and second counterweights 4 are both slidably arranged along the diameter of the flywheel body 2; a fixing hole 21 is provided through the center of the flywheel body 2; A first return spring 31 is provided between the end of the first counterweight 3 away from the fixing hole 21 and the flywheel body 2; a second return spring 41 is provided between the end of the second counterweight 4 away from the fixing hole 21 and the flywheel body 2. A first locking assembly is provided between the first counterweight 3, the flywheel body 2 and the second counterweight 4; a second locking assembly is provided between the second counterweight 4 and the flywheel body 2.

[0020] Specifically, in the inertial energy storage driven children's toy described in this embodiment, when the body 1 is pushed forward, the wheels 11 rotate synchronously and drive the transmission shaft 12 to rotate. The transmission shaft 12 transmits power to the main shaft 97 through the linkage component in stages. The main shaft 97 passes through the fixing hole 21 in the center of the flywheel body 2 and drives the flywheel body 2 to rotate synchronously. During the rotation of the flywheel body 2, the first counterweight 3 and the second counterweight 4 are subjected to centrifugal force and tend to slide outward radially. The first return spring 31 and the second return spring 41 continuously provide the elastic force to retract inward.

[0021] When the vehicle body 1 is gently pushed, causing the flywheel body 2 to rotate at a low speed, the centrifugal force is less than the return spring force. The first counterweight 3 and the second counterweight 4 are both brought close to the fixing hole 21 at the center of the flywheel body 2. The second counterweight 4 is locked by the first locking component. The mass of the entire flywheel body 2 is concentrated in the inner circle, with a small moment of inertia. The resistance to pushing by children is low, and young children can easily glide. When the vehicle body 1 is pushed hard, causing the flywheel body 2 to rotate at a higher speed, the centrifugal force overcomes the return spring force. The first counterweight 3 slides outward first, and the first locking component releases the lock on the second counterweight 4. The second counterweight 4 then slides outward and is locked in the outer circle position by the second locking component. The effective rotation radius of the flywheel body 2 increases, the moment of inertia increases, the energy storage capacity is significantly improved, and the car glides a longer distance.

[0022] This embodiment utilizes the combination of centrifugal force and a return spring to automatically adjust the radial position of the counterweight according to the magnitude of the thrust applied to the vehicle body 1. It automatically maintains a small moment of inertia during light pushes and automatically switches to a large moment of inertia during strong pushes. In the small moment of inertia setting, the overall counterweight of the flywheel body 2 is close to the center, resulting in low resistance and easy propulsion for younger children. In the large moment of inertia setting, the counterweight moves outward, increasing the effective rotation radius of the flywheel body 2, significantly improving energy storage capacity, and extending the vehicle's gliding distance, thus meeting the racing needs of older children.

[0023] The inertial energy storage driven children's toy described in this embodiment includes a first locking component comprising a first locking pin 51, a first locking hole 22 penetrating the flywheel body 2, and a connecting hole 42 disposed in the second counterweight 4. When the second counterweight 4 moves to one end near the fixing hole 21, the bottom of the first locking pin 51 passes through the first locking hole 22 and the connecting hole 42 in sequence.

[0024] Specifically, when the vehicle body 1 is gently pushed, the second counterweight 4 retracts to the inner side near the fixing hole 21 under the action of the second return spring 41. At this time, the connecting hole 42 on the second counterweight 4 is vertically aligned with the first locking hole 22 of the flywheel body 2. The first locking pin 51 passes through the first locking hole 22 and the connecting hole 42 downwards, locking the second counterweight 4 in the inner position and restricting the second counterweight 4 from sliding outwards. At this time, the flywheel body 2 maintains a small moment of inertia, and the counterweight is concentrated at the center, saving energy. When the flywheel body 2 is pushed hard to increase the speed, the first counterweight 3 moves outwards and drives the first locking pin 51 to rise upwards. The first locking pin 51 disengages from the connecting hole 42, and the second counterweight 4 loses its locking constraint. Under the action of centrifugal force, it slides outwards to switch to a high inertia gear.

[0025] The inertial energy storage driven children's toy described in this embodiment includes a first locking assembly that further comprises a guide rod 52 connected to a first locking pin 51 and a guide groove disposed on a first counterweight 3; the guide rod 52 is movably disposed in the guide groove. Specifically, the guide rod 52 moves radially along the flywheel body 2 synchronously with the first counterweight 3, and is engaged within the guide groove throughout its movement, following the trajectory of the guide groove, thereby driving the first locking pin 51 to rise and fall.

[0026] The inertial energy storage driven children's toy described in this embodiment includes a guide groove comprising a vertical guide groove 61 located at the end of the first counterweight 3 away from the fixing hole 21, an inclined guide groove 63 located at the end of the first counterweight 3 near the fixing hole 21, and a horizontal guide groove 62 located between the vertical guide groove 61 and the inclined guide groove 63; the horizontal guide groove 62 extends along the diameter direction of the flywheel body 2; the top of the vertical guide groove 61 is provided with a first locking spring 64 for abutting against the guide rod 52.

[0027] Specifically, in the low-speed retraction state, the first locking spring 64 continuously presses downward against the guide rod 52, forcing the guide rod 52 to remain stably at the bottom of the vertical guide groove 61, ensuring that the first locking pin 51 always presses down to lock the second counterweight 4, and the locked state is not easy to loosen; when gently pushed to accelerate slightly, the guide rod 52 only moves slightly in the horizontal guide groove 62, and the first locking pin 51 still locks the second counterweight 4, avoiding the slight push force from accidentally triggering the gear shift; when the push force is large enough, the guide rod 52 slides to the area of ​​the inclined guide groove 63, the inclined surface of the inclined guide groove 63 lifts the guide rod 52, and the locking pin lifts up simultaneously to unlock.

[0028] The inertial energy storage driven children's toy described in this embodiment includes a second locking assembly comprising a second locking pin 43 telescopically disposed on the top of the second counterweight 4 and a second locking hole 23 penetrating the flywheel body 2; a second locking spring 44 is provided between the bottom of the second locking pin 43 and the second counterweight 4; when the second counterweight 4 moves to one end away from the fixing hole 21, the top of the second locking pin 43 passes through the second locking hole 23.

[0029] Specifically, after the first locking pin 51 is unlocked from the connecting hole 42, the second counterweight 4 slides to the limit position of the outer ring of the flywheel body 2 under the action of centrifugal force. The second locking hole 23 and the second locking pin 43 are aligned vertically. The second locking spring 44 pushes the second locking pin 43 upward, and the top of the second locking pin 43 extends into the second locking hole 23 to complete the locking, fixing the second counterweight 4 to the outer ring and maintaining the large rotational inertia energy storage mode. When the flywheel body 2 rotates at high speed, the second counterweight 4 will not retract inward. After the vehicle stops gliding and the flywheel speed decreases, it cannot be unlocked by itself by the elastic force of the second return spring 41 alone. The second counterweight 4 continues to maintain the large inertia state of the outer ring, and long-distance gliding can be achieved without continuous and strong pushing. The second locking spring 44 continuously provides the tightening force, and there will be no problem of pin detachment or slippage under high-speed rotation.

[0030] In this embodiment, an inertial energy storage driven children's toy is described, in which the second counterweight 4 is fan-shaped. Specifically, when multiple fan-shaped second counterweights 4 are gathered close to the inner side of the fixing hole 21, adjacent fan rings are spliced ​​together to form a circular structure. The overall mass distribution of the flywheel body 2 is uniform, the rotational dynamic balance performance is excellent, the rotational vibration is small and the noise is low, and the gliding process is smooth and stable. The fan-shaped design can maximize the use of the internal annular space of the flywheel body 2. The second counterweight 4 has a larger mass for the same volume, which increases the upper limit of energy storage. After sliding outward, the second counterweights 4 of each fan ring are evenly distributed to the outer ring, which evenly increases the overall rotational radius of the flywheel body 2. The rotational inertia is increased in a balanced way, and there will be no one-sided weight imbalance that causes the flywheel to wobble or jam.

[0031] In this embodiment, an inertial energy storage driven children's toy is provided with driving inclined surfaces 45 on both sides of the second counterweight 4 for abutting against the bottom of the first locking pin 51. Specifically, when the unlocking lever 81 is pressed to release the second locking pin 43, the second return spring 41 pushes the second counterweight 4 to return inward. During the return process, the driving inclined surfaces 45 on both sides of the second counterweight 4 push the first locking pin 51 upward to avoid the retraction path of the second counterweight 4. After the second counterweight 4 is completely retracted to the inside and the connecting hole 42 is aligned with the first locking hole 22, the first locking spring 64 presses down the guide rod 52, and the first locking pin 51 falls down to relock the second counterweight 4.

[0032] This embodiment describes an inertial energy storage driven children's toy. The top of the flywheel body 2 is provided with a limiting groove 71 extending along the diameter of the flywheel body 2. The first counterweight 3 is slidably disposed in the limiting groove 71. A limiting rod 72 extending along the diameter of the flywheel body 2 is provided inside the flywheel body 2. The second counterweight 4 slidably passes through the limiting rod 72. Specifically, the limiting groove 71 restricts the first counterweight 3 to slide only linearly along the radial direction of the flywheel body 2, and the limiting rod 72 restricts the second counterweight 4 to slide only linearly along the radial direction of the flywheel body 2.

[0033] This embodiment describes an inertial energy storage driven children's toy. The outer edge of the body 1 is horizontally telescopically equipped with an unlocking rod 81; an unlocking spring 82 is provided between the unlocking rod 81 and the body 1; the unlocking rod 81 is connected to an unlocking ring 83; a permanent magnet ring 84 is provided at the bottom of the unlocking ring 83; the second locking pin 43 is a permanent magnet; the magnetism of the bottom surface of the unlocking ring 83 is the same as the magnetism of the top surface of the second locking pin 43. Specifically, when it is necessary to reset the high inertia gear to the low inertia gear, manually press the unlocking lever 81 on the outer side of the vehicle body 1 inward. The unlocking lever 81 overcomes the thrust of the unlocking spring 82 and moves horizontally towards the flywheel body 2, causing the unlocking ring 83 and the permanent magnet ring 84 to approach the second locking pin 43 on the flywheel body 2. The second locking pin 43 and the permanent magnet ring 84 have the same magnetic poles. The magnetic force of like poles repelling each other pushes the permanent magnet material of the second locking pin 43 downward, compressing the second locking spring 44, so that the top of the second locking pin 43 exits the second locking hole 23, releasing the outer ring lock of the second counterweight 4. After releasing the unlocking lever 81, the unlocking spring 82 pushes the unlocking lever 81, and the permanent magnet ring 84 resets away from the flywheel body 2. The second counterweight 4 retracts inward under the thrust of the second reset spring 41 and resets, relying on the drive inclined surface 45 to cooperate with the first locking assembly to complete the relocking.

[0034] This embodiment describes an inertial energy storage driven children's toy. The linkage assembly includes a drive shaft 12 rotatably mounted on the body 1, a first gear 91 fixedly connected to the drive shaft 12, a second gear 92 rotatably mounted on the body 1, a third gear 93 coaxially driven with the second gear 92, a fourth gear 94 rotatably mounted on the body 1, a first bevel gear 95 coaxially driven with the fourth gear 94, a main shaft 97 located in a fixing hole 21, and a second bevel gear 96 connected to the main shaft 97. The first gear 91 meshes with the second gear 92; the third gear 93 meshes with the fourth gear 94; the first bevel gear 95 meshes with the second bevel gear 96; and the drive shaft 12 is connected to the wheel 11.

[0035] Specifically, when the vehicle body 1 is pushed forward, the ground friction drives the wheel 11 to rotate, the wheel 11 drives the transmission shaft 12 to rotate synchronously, the transmission shaft 12 drives the first gear 91 to rotate, and the first gear 91 meshes with the second gear 92 to complete the first stage of transmission; the second gear 92 coaxially drives the third gear 93 to operate synchronously, the third gear 93 meshes with the fourth gear 94 to complete the second stage of transmission, and the fourth gear 94 is linked with the coaxial first bevel gear 95; the first bevel gear 95 and the second bevel gear 96 mesh vertically, converting the horizontal rotational power into vertical torque, driving the main shaft 97 to rotate, and the main shaft 97 drives the flywheel body 2 to rotate synchronously to store inertial kinetic energy; after the vehicle body 1 is released and the pushing stops, the flywheel continues to rotate on its own axis based on the stored kinetic energy, and in the opposite direction, through the main shaft 97, the second bevel gear 96, the first bevel gear 95, the fourth gear 94, the third gear 93, the second gear 92, the first gear 91 and the transmission shaft 12, it drives the wheel 11 to continue sliding forward.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A children's toy driven by inertial energy storage, characterized in that: It includes a body (1), a wheel (11) rotatably mounted on the body (1), and a flywheel unit rotatably mounted inside the wheel (11); a linkage component is provided between the flywheel unit and the wheel (11); The flywheel unit includes a flywheel body (2); the flywheel body (2) is provided with a plurality of first counterweights (3) and second counterweights (4) arranged alternately along the circumferential direction; the first counterweights (3) and second counterweights (4) are both slidably arranged along the diameter direction of the flywheel body (2); a fixing hole (21) is provided through the center of the flywheel body (2); A first return spring (31) is provided between the end of the first counterweight (3) away from the fixing hole (21) and the flywheel body (2); a second return spring (41) is provided between the end of the second counterweight (4) away from the fixing hole (21) and the flywheel body (2); A first locking assembly is provided between the first counterweight (3), the flywheel body (2) and the second counterweight (4); a second locking assembly is provided between the second counterweight (4) and the flywheel body (2).

2. The inertial energy storage driven children's toy according to claim 1, characterized in that: The first locking assembly includes a first locking pin (51), a first locking hole (22) penetrating the flywheel body (2), and a connecting hole (42) in the second counterweight (4); When the second counterweight (4) moves to the end near the fixing hole (21), the bottom of the first locking pin (51) passes through the first locking hole (22) and the connecting hole (42) in sequence.

3. The inertial energy storage driven children's toy according to claim 2, characterized in that: The first locking assembly also includes a guide rod (52) connected to the first locking pin (51) and a guide groove provided on the first counterweight (3); the guide rod (52) is movably provided in the guide groove.

4. A children's toy driven by inertial energy storage according to claim 3, characterized in that: The guide groove includes a vertical guide groove (61) located at the end of the first counterweight (3) away from the fixing hole (21), an inclined guide groove (63) located at the end of the first counterweight (3) close to the fixing hole (21), and a horizontal guide groove (62) located between the vertical guide groove (61) and the inclined guide groove (63); the horizontal guide groove (62) extends along the diameter direction of the flywheel body (2); The top of the vertical guide groove (61) is provided with a first locking spring (64) for abutting against the guide rod (52).

5. A children's toy driven by inertial energy storage according to claim 1, characterized in that: The second locking assembly includes a second locking pin (43) telescopically movably disposed on the top of the second counterweight (4) and a second locking hole (23) penetrating the flywheel body (2); a second locking spring (44) is provided between the bottom of the second locking pin (43) and the second counterweight (4); when the second counterweight (4) moves to one end away from the fixing hole (21), the top of the second locking pin (43) passes through the second locking hole (23).

6. A children's toy driven by inertial energy storage according to claim 2, characterized in that: The second counterweight (4) is fan-shaped.

7. A children's toy driven by inertial energy storage according to claim 6, characterized in that: The second counterweight (4) has driving ramps (45) on both sides for abutting against the bottom of the first locking pin (51).

8. A children's toy driven by inertial energy storage according to claim 1, characterized in that: The top of the flywheel body (2) is provided with a limiting groove (71) extending along the diameter direction of the flywheel body (2); the first counterweight (3) is slidably disposed in the limiting groove (71); the flywheel body (2) is provided with a limiting rod (72) extending along the diameter direction of the flywheel body (2); the second counterweight (4) is slidably disposed outside the limiting rod (72).

9. A children's toy driven by inertial energy storage according to claim 5, characterized in that: The vehicle body (1) is provided with an unlocking rod (81) that can be extended and retracted horizontally along its outer edge; an unlocking spring (82) is provided between the unlocking rod (81) and the vehicle body (1); the unlocking rod (81) is connected to an unlocking ring (83); a permanent magnet ring (84) is provided at the bottom of the unlocking ring (83); the second locking pin (43) is a permanent magnet; the magnetism of the bottom surface of the unlocking ring (83) is the same as the magnetism of the top surface of the second locking pin (43).

10. A children's toy driven by inertial energy storage according to claim 1, characterized in that: The linkage assembly includes a drive shaft (12) rotatably mounted on the vehicle body (1), a first gear (91) fixedly connected to the drive shaft (12), a second gear (92) rotatably mounted on the vehicle body (1), a third gear (93) coaxially driven with the second gear (92), a fourth gear (94) rotatably mounted on the vehicle body (1), a first bevel gear (95) coaxially driven with the fourth gear (94), a main shaft (97) mounted in the fixing hole (21), and a second bevel gear (96) connected to the main shaft (97); the first gear (91) meshes with the second gear (92); the third gear (93) meshes with the fourth gear (94); the first bevel gear (95) meshes with the second bevel gear (96); and the drive shaft (12) is connected to the wheel (11).

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