Four-wheel swing car without external force
By installing a travel and drive assembly on the rocking car, and utilizing the combination of foot pedals and drive wheels, forward movement can be achieved without a power source. Furthermore, by adjusting the center of gravity through a counterweight assembly and an adjustment assembly, the problems of existing rocking cars being unable to be fully seated and adaptable to different heights are solved, thus improving both fun and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-03-31
AI Technical Summary
Existing rocking cars require users to push off the ground with their feet, making it impossible to sit completely on the car. This results in a less immersive experience and fails to meet the needs of users of different heights, reducing the fun and comfort of the ride.
Design a four-wheeled rocking car that does not require external force. By installing a travel component and a drive component at the bottom of the seat, and using the cooperation of foot pedals and drive wheels, it can move forward without a power source. The center of gravity can be adjusted by a counterweight component and an adjustment component to maintain balance and safety.
It enhances the fun and safety of the ride, accommodates users of different heights, and ensures that the vehicle is less likely to overturn when going up or down slopes.
Smart Images

Figure CN224061127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rocking vehicle, specifically a four-wheeled rocking vehicle that does not require external force. Background Technology
[0002] A rocking car is a new type of transportation that falls between a scooter and a tricycle. It is a novel gadget that can be used as a toy for children and as a convenient means of transportation for adults.
[0003] However, conventional rocking cars require users to push off the ground with their feet to move the vehicle. This design has significant drawbacks: firstly, users cannot sit fully on the car, resulting in a less immersive experience; secondly, the fixed structure cannot accommodate users of different heights, greatly reducing the fun and comfort of the ride. Therefore, this invention provides a four-wheeled rocking car that does not require external force to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a four-wheeled rocking vehicle that does not require external force, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A four-wheeled rocking car that does not require external force includes a seat cushion. A mounting tube is installed at the bottom of the seat cushion for mounting. Traveling components for moving the seat cushion are installed at both ends of the mounting tube. The traveling components include first connectors fixedly connected to both ends of the mounting tube and travel wheels rotatably connected to the tail ends of the first connectors. A drive component for balancing and providing power to the seat cushion is provided at the front end of the seat cushion. A connecting component for mounting the drive component is installed inside the mounting tube. The connecting component includes a second connector installed inside the mounting tube and a connecting block fixedly connected to the tail end of the second connector. The drive component includes a foot pedal rotatably connected to the bottom end of the connecting block, a third connector bolted to the inner wall of the bottom of the foot pedal, and drive wheels rotatably connected to both ends of the third connector. A counterweight component for providing gravity is installed inside the second connector, and an adjustment component for adjusting the position of the counterweight component is also installed inside the second connector.
[0007] As a further embodiment of this utility model, the mounting tube has a through threaded hole, and the second connector has multiple locking holes arranged linearly on the side away from the connecting rotating block. The locking holes are adapted to the threaded holes, and a locking bolt is threaded into the threaded holes.
[0008] As a further embodiment of this utility model, the counterweight assembly includes a connecting pipe and a counterweight block, with the connecting pipe fixedly connected to the middle position of the inner wall of the second connector.
[0009] As a further embodiment of this utility model, the adjustment component includes a drive shaft and a second magnet strip. Mounting discs are fixedly connected to both ends of the inner wall of the second connector. Mounting seats are fixedly connected to the outer walls of the two mounting discs on opposite sides. The drive shaft is rotatably connected to the inner wall of the mounting seat. The second magnet strip is fixedly connected to the middle position of the outer wall of the drive shaft. The magnetic poles of the drive shafts on both sides are in opposite directions.
[0010] As a further embodiment of this utility model, a through fixing groove is provided at the axial position of the inner wall of the counterweight block, and a first magnet strip is fixedly connected to the inner wall of the fixing groove.
[0011] As a further embodiment of this utility model, a rotating plate is fixedly connected to the top of the drive shaft, and a counterweight ball for providing weight is installed inside the rotating plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. When using this utility model, the seat cushion, the second connecting piece, and the foot pedal are designed so that the user can move the seat cushion forward by moving the foot pedal left and right in a regular manner. No power source is required, which allows the user to be more engaged and improves the fun of the game. The position of the foot pedal can be adjusted by passing the locking bolt through different locking holes, which is convenient for people of different heights to play.
[0014] 2. When using this utility model, the counterweight and adjustment components allow for adjustment of the counterweight position when the seat cushion goes up or down slopes, thereby facilitating the overall center of gravity adjustment of the seat cushion. This prevents the seat cushion from tipping over due to stress bias on one side when going up or down slopes, thus ensuring the safety of the ride. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a four-wheeled rocking car that does not require external force.
[0016] Figure 2 Detailed view of the propulsion component in a four-wheeled rocking vehicle that does not require external force.
[0017] Figure 3 A detailed view of the drive assembly in a four-wheeled rocking car that does not require external force.
[0018] Figure 4 This is a partial cross-sectional view of the second connecting member in a four-wheeled rocking vehicle that does not require external force.
[0019] Figure 5 A detailed drawing of the counterweight assembly in a four-wheeled rocking car that does not require external force.
[0020] Figure 6 Detailed view of the adjustment component in a four-wheeled rocking car that does not require external force.
[0021] In the diagram: 10. Seat cushion; 11. First connecting piece; 12. Traveling wheel; 13. Mounting tube; 14. Locking bolt; 20. Second connecting piece; 21. Connecting rotating block; 22. Locking hole; 30. Foot pedal; 31. Third connecting piece; 32. Drive wheel; 40. Connecting tube; 41. Counterweight; 42. Limiting slider; 43. Ball bearing; 44. First magnet strip; 50. Mounting plate; 51. Mounting base; 52. Drive shaft; 53. Second magnet strip; 60. Rotating plate; 61. Counterweight ball. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-3 In this embodiment of the utility model, a four-wheeled rocking car that does not require external force includes a seat 10. To facilitate riding, the top of the seat 10 has a concave structure that adapts to the user's buttocks. However, when the user is playing, the seat 10 only provides a riding function and cannot be used for actual play. Therefore, accessories for assisting play need to be installed on the seat 10. Since the accessories cannot be directly installed on the seat 10, a mounting plate is bolted to the bottom of the seat 10. A mounting tube 13 for mounting is fixedly connected to the bottom of the mounting plate. The mounting tube 13 has a hollow structure. During play, accessories are used to assist the movement of the seat 10 to enhance the enjoyment of the ride. The mounting tube 13 has accessories at both ends for... The traveling component that drives the seat cushion 10 to move includes a first connector 11 fixedly connected to both ends of the mounting tube 13 and a traveling wheel 12 rotatably connected to the tail end of the first connector 11. The first connector 11 and the traveling wheel 12 can only assist the movement of the seat cushion 10 and cannot provide it with power. Furthermore, the two traveling wheels 12 are in contact with the ground and cannot maintain the balance of the seat cushion 10. Therefore, a drive component for balancing the seat cushion 10 and providing power is provided at the front end of the seat cushion 10. The drive component needs to be connected to the seat cushion 10 to form an integral structure. The drive component provides the power for the seat cushion 10 to move and maintain the balance of the seat cushion 10. Therefore, a connecting component that is installed in the mounting tube 13 to cooperate with the drive component is installed.
[0024] The connecting assembly includes a second connector 20 installed inside the mounting tube 13 and a connecting rotating block 21 fixedly connected to the tail end of the second connector 20. The driving assembly includes a foot pedal 30 rotatably connected to the bottom end of the connecting rotating block 21, a third connector 31 bolted to the inner wall of the bottom of the foot pedal 30, and drive wheels 32 rotatably connected to both ends of the third connector 31. The foot pedal 30, the third connector 31, and the drive wheels 32 are connected to the bottom of the seat cushion 10 through the second connector 20 and the connecting rotating block 21, and then the four points of contact with the ground are achieved through the travel wheels 12 and the drive wheels 32. Contact is made to maintain the balance and stability of the seat cushion 10. Specifically, when it is necessary to drive the movement, the user places their feet on both ends of the foot pedal 30 and swings them left and right in a regular manner. At this time, the foot pedal 30 can swing left and right around the connecting rotating block 21, and drive the drive wheels 32 on both sides to swing left and right in a regular manner. The forward component force generated during the swing can drive the drive wheels 32 to move forward. At this time, the seat cushion 10 is driven to move forward synchronously through the driving wheel 12 via the connecting rotating block 21 and the second connecting piece 20. No power is required to drive the seat cushion 10 forward for play.
[0025] See Figure 4 The second connector 20 is equipped with a counterweight assembly for providing gravity, and an adjustment assembly for adjusting the position of the counterweight assembly. The position of the counterweight in the second connector 20 is adjusted by the adjustment assembly to keep the center of gravity of the rocking car stable and prevent it from tipping over.
[0026] See Figure 2 The mounting tube 13 has a through threaded hole that extends into the mounting plate on one side of the mounting tube 13. The second connector 20 has multiple linearly arranged locking holes 22 on the side away from the connecting rotating block 21. The locking holes 22 are adapted to the threaded holes, and locking bolts 14 are threaded into the threaded holes. When it is necessary to fix the second connector 20, the second connector 20 is inserted into the mounting tube 13, and the locking bolts 14 are screwed into the threaded holes on the mounting tube 13 and then through the locking holes 22 on the second connector 20 into the threaded holes on the mounting plate to fix the second connector 20. When the locking bolts 14 pass through different locking holes 22, the distance between the foot pedal 30 and the seat 10 can be adjusted to facilitate use by users of different heights.
[0027] See Figures 4-5The counterweight assembly includes a connecting pipe 40 and a counterweight block 41. The connecting pipe 40 is fixedly connected to the middle position of the inner wall of the second connecting member 20. Limiting grooves are provided at both ends of the connecting pipe 40, and limiting cavities are provided at both ends of the limiting grooves. Limiting sliders 42 are fixedly connected to both ends of the counterweight block 41. Protrusions are provided at both ends of the limiting sliders 42. The limiting sliders 42 and the protrusions thereon are slidably connected to the inner walls of the limiting grooves and limiting cavities, respectively. The counterweight block 41 is slidably connected to the inner wall of the connecting pipe 40 through the limiting sliders 42. The sliding of the limiting sliders 42 and the protrusions in the limiting grooves and limiting cavities can limit the sliding movement of the counterweight block 41.
[0028] More specifically, the connecting pipe 40 is connected to a plurality of linearly arranged ball bearings 43 on the inner wall of the limiting groove. The ball bearings 43 are connected to the limiting slider 42 on the outer wall of the counterweight 41. Specifically, when the counterweight 41 moves, the friction between the two can be reduced by the rolling of the ball bearings 43 in the limiting groove inside the connecting pipe 40, so as to avoid jamming when it slides.
[0029] See Figure 6 The adjustment assembly includes a drive shaft 52 and a second magnet strip 53. Mounting discs 50 are fixedly connected to both ends of the inner wall of the second connector 20. Mounting bases 51 are fixedly connected to the outer wall of the two mounting discs 50 on opposite sides. The drive shaft 52 is rotatably connected to the inner wall of the mounting base 51. The second magnet strip 53 is fixedly connected to the middle position of the outer wall of the drive shaft 52. The magnetic poles of the drive shafts 52 on both sides are opposite. When the drive shaft 52 rotates in the mounting base 51, the second magnet strip 53 on it can rotate synchronously, and then the magnetic poles on the side close to the counterweight 41 will change.
[0030] See Figure 5 A through-hole fixing groove is provided on the inner wall axis of the counterweight 41. A first magnet strip 44 is fixedly connected to the inner wall of the fixing groove. The first magnet strip 44 and the second magnet strip 53 are located on the same axis. When the magnetic pole direction of the second magnet strip 53 changes when it approaches the counterweight 41, the magnetic force between the first magnet strip 44 and the second magnet strip 53 changes accordingly.
[0031] See Figure 6 The drive shaft 52 passes through the mounting base 51 and extends to the outer wall of the mounting base 51. A rotating plate 60 is fixedly connected to the top of the drive shaft 52. A counterweight ball 61 for providing weight is installed in the rotating plate 60. When the seat cushion 10 is going downhill, the counterweight ball 61 is offset and rotated to the side of the seat cushion 10's travel direction due to gravity. This allows the second magnet strip 53 to rotate through the drive shaft 52. When the seat cushion 10 is going uphill, the counterweight ball 61 can rotate to the side opposite to the travel direction of the seat cushion 10 under gravity.
[0032] The working principle of this utility model is as follows: When it is time to play, the user sits on the seat cushion 10 and places his feet on both ends of the foot pedal 30. The foot pedal 30 and the drive wheel 32 move synchronously by moving the feet left and right in a regular manner. The drive wheel 32 can be moved by the component force when moving left and right, and the seat cushion 10 is moved forward by the travel wheel 12 for playing.
[0033] When the seat 10 is going downhill, the counterweight ball 61 drives the rotating plate 60 to rotate towards the direction of travel under gravity. At this time, the second magnetic strip 53 can be driven to rotate through the drive shaft 52. The second magnetic strip 53 on the side of travel has the same magnetic pole as the first magnetic strip 44 and attracts it. The second magnetic strip 53 on the other side has the same magnetic pole direction as the first magnetic strip 44 and repels the ball 43. This causes the counterweight block 41 to move closer to the foot pedal 30, which increases the gravity at the drive wheel 32. When going uphill, the counterweight block 41 is moved closer to the driving wheel 12. By changing the position of the counterweight block 41, the center of gravity of the seat 10 is kept in the middle, preventing tipping.
[0034] When this utility model is in use, the seat 10, the second connecting piece 20 and the foot pedal 30 are designed so that the seat 10 can move forward simply by the user moving the foot pedal 30 left and right in a regular manner. No power source is required, so the user can be more engaged and improve the fun of playing. The position of the foot pedal 30 can be adjusted by passing the locking bolt 14 through different locking holes 22, so that people of different heights can play.
[0035] By setting up counterweight components and adjustment components, the position of counterweight block 41 can be adjusted when the seat 10 goes up or down slopes, thereby facilitating the adjustment of the overall center of gravity of the seat 10 and preventing the seat 10 from tipping over due to stress bias on one side when going up or down slopes, which would affect the safety of the ride.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A four-wheel swing vehicle without the aid of external force, comprising a seat cushion (10), characterized in that, The seat cushion (10) is provided with a mounting pipe (13) at the bottom for cooperation installation, and the mounting pipe (13) is provided with a traveling assembly at both ends for driving the seat cushion (10) to move, the traveling assembly comprises a first connecting piece (11) fixedly connected to both ends of the mounting pipe (13) and a traveling wheel (12) rotatably connected to the tail end of the first connecting piece (11), the seat cushion (10) is provided with a driving assembly at the front end for balancing and providing power for the seat cushion (10), and the mounting pipe (13) is provided with a connecting assembly installed in the mounting pipe (13) for cooperation with the driving assembly; The connecting assembly comprises a second connecting piece (20) installed in the mounting pipe (13) and a connecting rotating block (21) fixedly connected to the tail end of the second connecting piece (20), and the driving assembly comprises a foot pedal (30) rotatably connected to the bottom end of the connecting rotating block (21), a third connecting piece (31) installed on the inner wall of the bottom of the foot pedal (30) through bolts and a driving wheel (32) rotatably connected to both ends of the third connecting piece (31). The second connecting piece (20) is provided with a counterweight assembly for providing gravity, and the second connecting piece (20) is provided with an adjusting assembly for adjusting the position of the counterweight assembly.
2. A four-wheel rocking vehicle according to claim 1, wherein The mounting pipe (13) is provided with a threaded hole penetrating through, the second connecting piece (20) is provided with a plurality of locking holes (22) arranged in a linear array on the side away from the connecting rotating block (21), the locking holes (22) are matched with the threaded hole, and the threaded hole is threadedly connected with a locking bolt (14).
3. The four-wheel rocking vehicle of claim 1, wherein, The counterweight assembly comprises a connecting pipe (40) and a counterweight block (41), and the connecting pipe (40) is fixedly connected to the inner wall of the second connecting piece (20) at the middle position.
4. The four-wheel rocking vehicle of claim 1, wherein, The adjusting assembly comprises a transmission shaft (52) and a second magnet strip (53), the inner wall of the second connecting piece (20) is fixedly connected with a mounting disc (50) at both ends, the outer wall of the opposite side of the two mounting discs (50) is fixedly connected with a mounting seat (51), the transmission shaft (52) is rotatably connected to the inner wall of the mounting seat (51), the second magnet strip (53) is fixedly connected to the outer wall of the transmission shaft (52) at the middle position, and the magnetic pole directions of the transmission shafts (52) on both sides are opposite.
5. The four-wheel rocking vehicle of claim 3, wherein, The inner wall of the counterweight block (41) is provided with a penetrating fixing groove at the axis position, and the inner wall of the fixing groove is fixedly connected with a first magnet strip (44).
6. A four-wheel rocking vehicle according to claim 4, wherein The top end of the transmission shaft (52) is fixedly connected with a rotating plate (60), and the rotating plate (60) is provided with a counterweight bead (61) for providing weight.