High-safety swing car

Abstract

The invention discloses a high-safety swing car, and belongs to the technical field of child toy cars. A seat face of the swing car body is composed of a fixed part and a movable part, when the backrest is used, the movable part is opened in place and is matched and locked with the fixed part to form a fixed backrest of the swing car, a fence connecting assembly is detachably installed on the back face of the fixed backrest, and a supporting rod is detachably connected to the fixed part of the seat face. The two ends of the two semi-fences are respectively assembled with the matched parts of the fence connecting components and the supporting rods to form a closed fence; and after the semi-fences and the supporting rods are detached, the fixed backrest is unlocked, turned over and closed, and the movable part and the fixed part of the seat surface form a complete seat surface of the swing car. According to the swing car backrest, the defect that an existing swing car backrest cannot provide effective support for children after leaning over is effectively overcome, and meanwhile, the safety problem when young children sit on the swing car backrest can be solved.

Description

Technical Field

[0001] This invention relates to the field of children's toy vehicle technology, specifically to a highly safe twist car. Background Technology

[0002] The twist car, also known as a rocking car, is a cleverly designed, flexible and fun children's toy. It does not require a battery, motor or other power source, nor does it require human effort to push or the child to slide on their feet. The child only needs to turn the steering wheel left and right to make the twist car move forward.

[0003] Currently, hoverboards with backrests can be broadly categorized into three types: The first type is a fixed backrest, which is an integrated design with the seat, typically an injection-molded or blow-molded single structure. The backrest extends from the rear of the seat and cannot be removed or adjusted independently. The second type is a foldable / detachable backrest, connected to the vehicle body via hinges, buckles, or quick-release mechanisms, allowing it to be folded to the side or completely removed. The third type is an adjustable backrest, where an adjustable joint (such as a rotating shaft with a locking device) connects the backrest to the vehicle body, allowing users to adjust the backrest's tilt angle (e.g., 90°, 100°, 110°, etc.) as needed.

[0004] The backrests of the three types of scooters mentioned above are usually installed too far back. When young children ride in them, the backrests cannot provide effective support and are not matched with the child's center of gravity, causing the body to lean forward or become unstable when leaning against them.

[0005] In addition, the design of safety barriers for scooters has the following three problems: First, the existing safety barriers or enclosures for scooters are generally too low (e.g., only reaching a child's waist or lower), failing to effectively prevent active children from trying to stand up. Second, some safety barriers or enclosures are only located behind or on one side of the seat, failing to form a complete enclosure structure, making it easy for children to climb out from the side or front. Third, most safety barriers or enclosures are fixed structures, making it inconvenient to switch between different usage modes of the scooter, while detachable structures are complex, resulting in cumbersome assembly and disassembly and higher manufacturing costs. Summary of the Invention

[0006] In view of this, the present invention provides a high-safety twist car that can effectively overcome the shortcomings of existing twist cars where the backrest is too far back and cannot provide effective support for children, while also solving the safety problem when young children ride in it.

[0007] A high-safety scooter is disclosed, wherein the seat surface of the scooter body consists of a fixed part and a movable part. When the backrest is needed, the movable part is separated from the fixed part and opened by flipping or disassembling. After opening and locking with the fixed part, it forms the fixed backrest of the scooter. A fence connecting component is detachably installed on the back of the fixed backrest. A support rod is detachably connected to the fixed part of the seat surface. The two ends of the two half fences are assembled with the fence connecting component and the support rod respectively to form a closed fence. After the half fences and the support rod are removed, the fixed backrest is unlocked and flipped closed, and the movable part and the fixed part of the seat surface form the complete seat surface of the scooter.

[0008] Furthermore, the body of the scooter includes an upper body, a lower body, a cover backrest, a locking screw, and an unlocking button; The cover plate has an unlocking button in the middle of one end of the backrest, and the other end has a rod structure extending horizontally on the left and right sides, with a waist-shaped hole machined on the rod structure. The locking screw passes through the waist-shaped hole on the cover plate backrest insert structure and movably connects the cover plate backrest to the upper body. The cover plate backrest is locked and unlocked with the lower body through the unlocking button. The lower body has a limiting groove in the middle. When the cover backrest is flipped counterclockwise to a set angle, it is lifted up and then inserted into the limiting groove of the lower body to form a fixed backrest. When the cover backrest needs to be lowered, the cover backrest is lifted along the direction of the limiting groove to disengage it from the limiting groove and then flipped clockwise until it fits against the lower body. The unlocking button locks the cover backrest and the lower body together.

[0009] Furthermore, the upper half of the unlock button has a spring mounting cavity on the left side, a recessed pressing part on the right side of the upper half, and a hook extending downwards in the lower half of the unlock button, with a protruding edge extending horizontally from the bottom of the hook. After the spring is installed in the spring mounting cavity of the unlock button, it cooperates with the mounting groove on the back of the cover plate. The hook of the lower half of the unlock button passes through the through hole of the mounting block. Under the action of the spring, the unlock button moves to the right. The right end face of the hook fits against the inner wall of the through hole. When the back of the cover plate is closed, the protruding edge of the hook of the lower half of the unlock button hooks the limiting structure at the corresponding position of the lower body.

[0010] Furthermore, an ejection mechanism is installed on the end face of the lower vehicle body that contacts the cover backrest. The height of the movable end of the ejection mechanism is higher than the end face. After the cover backrest is closed, it presses down the movable end of the ejection mechanism to store energy. After the cover backrest is unlocked, the ejection mechanism releases energy to eject the cover backrest outward.

[0011] Furthermore, a plug is installed on the waist-shaped hole of the cover plate backrest insert structure.

[0012] Furthermore, the fence connection assembly includes a body, a top cover, a button, and a spring; The upper end of the main body has a mounting cavity on each of the left and right sides. The bottom surface of the mounting cavity has a spring mounting groove and two upper cover positioning grooves. The two positioning grooves are distributed in front and behind. The outer sides of the left and right mounting cavities extend outward in the left and right directions respectively. A connecting edge is machined on the connecting edge through the thickness direction. The lower end of the main body has a downward protruding foot. The upper cover has an internal mounting cavity, and the bottom of the upper cover has a protrusion that mates with the positioning groove in the mounting cavity of the main body; The button has a spring mounting cavity at the bottom and a slotted hook at the top; After the button is installed into the mounting cavity of the top cover, the two ends of the spring are respectively installed into the spring mounting slot in the mounting cavity of the main body and the spring mounting cavity at the bottom of the button. Then the top cover is pressed down into the mounting cavity of the main body, and the protrusion at the bottom of the top cover is embedded in the positioning groove of the mounting cavity. The top cover is fixed to the main body by screws. At this time, the spring is in a compressed state.

[0013] Furthermore, the semi-fence includes an upper cover, a lower cover, a limit button, and a compression spring; Both the upper and lower covers have an overall shape that is bent at both ends. One end of the upper cover has two parallel connecting ears, and the other end is a round tube with an outer diameter smaller than the outer diameter of the rest of the cover. The limit button consists of two different cylindrical segments. The cavity inside the larger cylindrical segment is fitted with a compression spring, while the smaller cylindrical segment passes through the through hole in the lower cover. After the upper and lower covers are fixed together, the limit button is compressed and confined inside the tubular structure, with the smaller cylindrical segment of the limit button located outside the tubular structure.

[0014] Furthermore, the support rod includes a front cover, a rear cover, a button, and a compression spring; The front cover of the support rod has a T-shaped structure, and the upper horizontal part is a tubular structure. The front cover and the rear cover of the support rod are snapped together to form a mounting cavity for the support rod button. The support rod button is confined in the mounting cavity with the help of a compression spring. Under the action of the compression spring, the front end of the support rod button is outside the front cover of the support rod, and there is a horizontal notch below the front end of the support rod button.

[0015] Furthermore, the surface of the upper body is provided with a support rod mounting groove. When the support rod button is pressed down in the horizontal direction, the horizontal notch at the front end of the support rod button retracts into the support rod front cover. The support rod is aligned with the mounting groove and inserted. After the support rod is fully inserted, the support rod button is released, the compression spring releases the pressure, and the horizontal notch at the front end of the support rod button locks the edge of the upper body, realizing the connection between the support rod and the upper body. The back of the cover plate backrest is provided with a fence connection component mounting groove. A limiting groove is provided on the horizontal bottom surface of the mounting groove, and two limiting grooves are provided on the horizontal top surface of the mounting groove. The protruding foot at the lower end of the main body is inserted downward into the limiting groove. When the button is pressed down, the slot hook on the button moves downward simultaneously, pushing the main body forward into the mounting groove. After the button is released, the internal spring releases the pressure and moves upward. The slot hook above the button locks the limiting groove, realizing the connection between the fence connection component and the cover plate backrest. One end of the semi-fence with a connecting ear is movably connected to the connecting edge on the fence connecting assembly body via bolts. The semi-fence can rotate horizontally around the connection point. The other end of the semi-fence cooperates with the tubular structure at the upper end of the support rod front cover to realize the opening and closing of the fence. When closing the fence, press the limit button to retract it into the round tube, insert the round tube into the tubular structure at the upper end of the support rod front cover. The tubular structure has a limit hole that matches the small cylindrical section of the limit button. After the limit button moves to the correct position, the small cylindrical section enters the limit hole under the action of the compression spring, realizing the connection between the fence, the fence connecting assembly, and the support rod.

[0016] Beneficial effects: 1. This invention designs the movable part of the seat surface as an openable cover backrest. After being flipped open, it can be locked into a fixed backrest, so that the backrest position is moved forward and closer to the child's waist, providing effective support and avoiding safety accidents caused by leaning forward or backward during exercise. The backrest and seat are integrated into one design, forming a complete seat surface when closed, which can accommodate children of different ages.

[0017] 2. The fence and support rods of this invention can be completely disassembled, and the cover plate backrest can be reset into a seat surface. It can quickly switch between "with guardrail mode" and "normal mode" to meet the needs of children of different ages: young children need guardrail protection, while older children can remove the guardrail to expand their activity space. In addition, the modular design makes it easy to store and replace, reducing maintenance costs.

[0018] 3. This invention uses a fence connecting component and a support rod to form a three-point support structure in the backrest and the front half of the seat. Connecting two half-fences forms a closed fence, creating a complete ring-shaped protection to prevent children from tipping over or falling forward, effectively improving the safety of the ride-on vehicle. The half-fences are quickly locked to the support rod via a limit button, and the fence connecting component can be easily installed and removed with a single button spring mechanism, allowing for quick switching between usage modes without tools.

[0019] 4. This invention adopts a modular and state-changeable design concept, which not only improves the safety of the product, but also systematically solves the defects of traditional twist cars in terms of support, protection and flexibility. It especially optimizes the safety experience of young children riding in the car, while taking into account the convenience and adaptability of the product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the hovercraft of the present invention; Figure 2 for Figure 1 Rear view; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 2 BB cross-sectional view; Figure 5 for Figure 2 CC section view; Figure 6 Exploded view of fence connection components, half-fence, and support poles; Figure 7 This is a schematic diagram showing the mating relationship between the fence connecting components and the cover plate backrest; Figure 8 This is a schematic diagram of the twist car of the present invention after the fence and support poles have been removed (cover and backrest closed). Figure 9 for Figure 8 Top view; Figure 10 for Figure 9 AA section view; Figure 11 for Figure 10 Enlarged view of a section at point C; Figure 12 for Figure 9 BB cross-sectional view; Figure 13 for Figure 9 DD sectional view.

[0021] Among them, 1-cover backrest, 2-lower body, 3-upper body, 4-unlock button, 5-block cover, 6-swivel wheel, 7-front wheel set, 8-top-out mechanism, 9-half fence, 9-1-upper right cover, 9-2-lower right cover, 9-3-limit button, 9-4-compression spring, 9-5-upper left cover, 9-6-lower left cover, 10-support rod, 10-1-support rod front cover, 10-2-support rod rear cover, 10-3-support rod button, 10-4-compression spring, 11-fence connecting assembly, 11-1-body, 11-2-button, 11-3-upper cover, 11-4-spring, 12-compression spring, 13-locking screw. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This invention provides a high-safety scooter, comprising three main parts: a body frame, a deformable backrest system, and a safety protection system. The body consists of an upper body 3 and a lower body 2 forming a basic load-bearing structure. A front wheel assembly 7 is installed at the front of the body, and two omnidirectional wheels 6 are equipped at the rear of the body, forming a stable three-point support system.

[0024] like Figure 2 and 7 As shown, the core component of the deformable backrest, the cover backrest 1, achieves its shape transformation through a special connecting mechanism. An unlocking button 4 is located in the center of one end of the cover backrest 1, and insert rod structures extend horizontally from the left and right sides of the other end. The insert rod structures are machined with oblong holes.

[0025] Figure 12 The diagram illustrates the specific method by which the locking screw 13 passes through the oblong hole in the insert structure of the cover backrest 1, thereby movably connecting the cover backrest 1 to the upper body 3. The oblong hole design provides the necessary adjustment space for the flipping process. An ejection mechanism 8 is installed on the end face of the lower body 2 that contacts the cover backrest 1. This mechanism is pressed down to store energy when the cover backrest 1 is closed. When the unlock button 4 is pressed, the ejection mechanism 8 quickly releases energy, pushing the cover backrest 1 outwards for easy opening.

[0026] like Figure 11 As shown, the unlock button 4 adopts a split structure design. The upper half of the unlock button 4 has a spring mounting cavity on the left and a recessed pressing part on the right; the lower half is a hook that extends downward, with a raised edge extending horizontally from the bottom of the hook. After the spring 12 is installed in the spring mounting cavity, it cooperates with the mounting groove on the backrest of the cover plate 1 to realize the automatic reset function.

[0027] like Figure 12 As shown, a limiting groove is provided in the middle of the lower body 2. When the cover backrest 1 is flipped counterclockwise to a set angle, it is lifted up, and then the insert rod structure on the cover backrest 1 is inserted into the limiting groove of the lower body 2 to form a fixed backrest. When it needs to be lowered, the cover backrest 1 is lifted along the direction of the limiting groove to make it disengage from the limiting groove, and then flipped clockwise until it is completely attached to the lower body 2.

[0028] like Figure 6 As shown, the safety protection system includes a fence connection assembly 11, a support post 10, and two half-fences 9, wherein, as Figure 4 As shown, the fence connection assembly 11 includes a body 11-1, a top cover 11-3, a button 11-2, and a spring 11-4; The main body 11-1 has a mounting cavity on each of its left and right sides at the upper end. The bottom surface of each mounting cavity has a spring mounting groove and two upper cover positioning grooves, which are arranged front to back. Connecting edges extend outwards from the outer sides of the two mounting cavities in the left and right directions, and connecting holes are machined through these edges in the thickness direction. The lower end of the main body has a downward-facing protrusion, corresponding to... Figure 7 Point C in the diagram; the upper cover 11-3 has an internal mounting cavity, and the bottom of the upper cover has two protrusions that mate with the positioning grooves in the mounting cavity of the main body. The button 11-2 has a spring mounting cavity at the bottom and a slot-type hook at the top, which mates with slots A and B on the backrest 1 of the cover plate; during assembly, after the button 11-2 is inserted into the mounting cavity of the upper cover 11-3, the two ends of the spring 11-4 are respectively inserted into the spring mounting groove in the mounting cavity of the main body and the spring mounting cavity at the bottom of the button. Then the upper cover 11-3 is pressed down into the mounting cavity of the main body 11-1, and the protrusions at the bottom of the upper cover 11-3 are embedded in the positioning grooves of the mounting cavity. After the upper cover 11-3 and the main body 11-1 are fixed with screws, a complete assembly is formed. At this time, the spring 11-4 is in a compressed state.

[0029] Taking the right-side semi-fence 9 as an example, it consists of an upper right cover 9-1, a lower right cover 9-2, a limit button 9-3, and a compression spring 9-4. Both the upper right cover 9-1 and the lower right cover 9-2 have a bent-end structure, with two parallel connecting ears at one end and a cylindrical structure at the other. The limit button 9-3 consists of two cylindrical segments of different diameters; the larger cylindrical segment has a cavity into which the compression spring 9-4 is installed to achieve an elastic limit function.

[0030] The support rod 10 includes a front cover 10-1, a rear cover 10-2, a button 10-3, and a compression spring 10-4. The front cover 10-1 has a T-shaped structure, with the upper horizontal portion being a tubular structure. The button 10-3, in conjunction with the compression spring 10-4, is confined within the mounting cavity formed by the interlocking of the front cover 10-1 and the rear cover 10-2, achieving a one-button locking function.

[0031] The formation process of a complete fence: A complete fence requires three support points: both ends of the fence connecting assembly 11 mounted on the back of the cover plate backrest 1, and the support rod 10 at the front of the seat. (See attached...) Figure 7 As shown, the three connection points A, B, and C on the fence connecting component 11 correspond to the three points on the cover plate backrest 1. First, insert the protruding foot at the lower end of the body 11-1 into point C of the cover plate backrest 1, then press button 11-2 to engage points B and C, thus completing the connection between the fence connecting component 11 and the cover plate backrest 1. The connecting ears at one end of the two half-fences 9 are movably connected to the connecting edge on the body 11-1 by bolts, and the other ends of the two half-fences 9 are inserted into the tubular structure at the upper end of the support rod front cover 10-1 in the support rod 10, forming a complete ring-shaped protective structure.

[0032] Assembly process with guardrails: 1. Flip open the cover backrest 1 and lock it in the backrest position; 2. Install the fence connection assembly 11 on the back of the cover plate backrest 1; 3. Install support rod 10 at the front of the seat; 4. Connect both ends of the semi-fence 9 to the fence connection components and the support rods, respectively.

[0033] Normal mode conversion process: 1. Disassemble the connections at both ends of the semi-fence 9; 2. Remove the support pole 10 and the fence connection assembly 11; 3. Lower the cover backrest 1 back to its original position to form a complete seat surface.

[0034] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-safety hoverboard, characterized in that, The seat surface of the aforementioned scooter consists of a fixed part and a movable part. When the backrest is needed, the movable part is separated from the fixed part and opened by flipping or disassembling. After opening and locking with the fixed part, it forms the fixed backrest of the scooter. The back of the fixed backrest is detachably equipped with a fence connecting component. A support rod is detachably connected to the fixed part of the seat surface. The two ends of the two half fences are assembled with the fence connecting component and the support rod respectively to form a closed fence. After the half fences and support rods are removed, the fixed backrest is unlocked, flipped, and closed. The movable part and the fixed part of the seat surface form the complete seat surface of the scooter.

2. The high-safety hoverboard as described in claim 1, characterized in that, The body of the scooter includes an upper body, a lower body, a cover backrest, a locking screw, and an unlocking button; The cover plate has an unlocking button in the middle of one end of the backrest, and the other end has a rod structure extending horizontally on the left and right sides, with a waist-shaped hole machined on the rod structure. The locking screw passes through the waist-shaped hole on the cover plate backrest insert structure and movably connects the cover plate backrest to the upper body. The cover plate backrest is locked and unlocked with the lower body through the unlocking button. The lower body has a limiting groove in the middle. When the cover backrest is flipped counterclockwise to a set angle, it is lifted up and then inserted into the limiting groove of the lower body to form a fixed backrest. When the cover backrest needs to be lowered, the cover backrest is lifted along the direction of the limiting groove to disengage it from the limiting groove and then flipped clockwise until it fits against the lower body. The unlocking button locks the cover backrest and the lower body together.

3. A high-safety hoverboard as described in claim 2, characterized in that, The upper half of the unlock button has a spring mounting cavity on the left side, a recessed pressing part on the right side of the upper half, and a hook extending downwards in the lower half of the unlock button, with a protruding edge extending horizontally from the bottom of the hook. After the spring is installed in the spring mounting cavity of the unlock button, it cooperates with the mounting groove on the back of the cover plate. The hook of the lower half of the unlock button passes through the through hole of the mounting block. Under the action of the spring, the unlock button moves to the right. The right end face of the hook fits against the inner wall of the through hole. When the back of the cover plate is closed, the protruding edge of the hook of the lower half of the unlock button hooks the limiting structure at the corresponding position of the lower body.

4. A high-safety hoverboard as described in claim 3, characterized in that, An ejection mechanism is installed on the end face of the lower vehicle body that contacts the cover backrest. The height of the movable end of the ejection mechanism is higher than the end face. After the cover backrest is closed, it presses down the movable end of the ejection mechanism to store energy. After the cover backrest is unlocked, the ejection mechanism releases energy to eject the cover backrest outward.

5. A high-safety hoverboard as described in claim 4, characterized in that, The fence connection assembly includes a body, a top cover, a button, and a spring; The upper end of the main body has a mounting cavity on each of the left and right sides. The bottom surface of the mounting cavity has a spring mounting groove and two upper cover positioning grooves. The two positioning grooves are distributed in front and behind. The outer sides of the left and right mounting cavities extend outward in the left and right directions respectively. A connecting edge is machined on the connecting edge through the thickness direction. The lower end of the main body has a downward protruding foot. The upper cover has an internal mounting cavity, and the bottom of the upper cover has a protrusion that mates with the positioning groove in the mounting cavity of the main body; The button has a spring mounting cavity at the bottom and a slotted hook at the top; After the button is installed into the mounting cavity of the top cover, the two ends of the spring are respectively installed into the spring mounting slot in the mounting cavity of the main body and the spring mounting cavity at the bottom of the button. Then the top cover is pressed down into the mounting cavity of the main body, and the protrusion at the bottom of the top cover is embedded in the positioning groove of the mounting cavity. The top cover is fixed to the main body by screws. At this time, the spring is in a compressed state.

6. A high-safety hoverboard as described in claim 5, characterized in that, The semi-fence includes an upper cover, a lower cover, a limit button, and a compression spring; Both the upper and lower covers have an overall shape that is bent at both ends. One end of the upper cover has two parallel connecting ears, and the other end is a round tube with an outer diameter smaller than the outer diameter of the rest of the cover. The limit button consists of two different cylindrical segments. The cavity inside the larger cylindrical segment is fitted with a compression spring, while the smaller cylindrical segment passes through the through hole in the lower cover. After the upper and lower covers are fixed together, the limit button is compressed and confined inside the tubular structure, with the smaller cylindrical segment of the limit button located outside the tubular structure.

7. A high-safety hoverboard as described in claim 6, characterized in that, The support rod includes a front cover, a rear cover, a button, and a compression spring; The front cover of the support rod has a T-shaped structure, and the upper horizontal part is a tubular structure. The front cover and the rear cover of the support rod are snapped together to form a mounting cavity for the support rod button. The support rod button is confined in the mounting cavity with the help of a compression spring. Under the action of the compression spring, the front end of the support rod button is outside the front cover of the support rod, and there is a horizontal notch below the front end of the support rod button.

8. A high-safety hoverboard as described in claim 6 or 7, characterized in that, The surface of the upper body is provided with a support rod mounting groove. When the support rod button is pressed down horizontally, the horizontal notch at the front end of the support rod button retracts into the support rod front cover. The support rod is aligned with the mounting groove and inserted. After the support rod is fully inserted, the support rod button is released, the compressed spring releases the pressure, and the horizontal notch at the front end of the support rod button locks the edge of the upper body, realizing the connection between the support rod and the upper body. The back of the cover plate backrest is provided with a fence connection component mounting groove. A limiting groove is provided on the horizontal bottom surface of the mounting groove, and two limiting grooves are provided on the horizontal top surface of the mounting groove. The protruding foot at the lower end of the main body is inserted downward into the limiting groove. When the button is pressed down, the slot hook on the button moves downward simultaneously, pushing the main body forward into the mounting groove. After the button is released, the internal spring releases the pressure and moves upward. The slot hook above the button locks the limiting groove, realizing the connection between the fence connection component and the cover plate backrest. One end of the semi-fence with a connecting ear is movably connected to the connecting edge on the fence connecting assembly body via bolts. The semi-fence can rotate horizontally around the connection point. The other end of the semi-fence cooperates with the tubular structure at the upper end of the support rod front cover to realize the opening and closing of the fence. When closing the fence, press the limit button to retract it into the round tube, insert the round tube into the tubular structure at the upper end of the support rod front cover. The tubular structure has a limit hole that matches the small cylindrical section of the limit button. After the limit button moves to the correct position, the small cylindrical section enters the limit hole under the action of the compression spring, realizing the connection between the fence, the fence connecting assembly, and the support rod.

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