A child's vehicle having a bidirectionally adjustable seat
By designing a two-way adjustable seat assembly on a children's bicycle, the seat can be adjusted forward and backward as well as up and down, solving the problem of uncomfortable riding posture caused by the fixed position in the existing technology, and improving riding comfort and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGTAI CHENGBA CHILDRENS TOYS CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-14
AI Technical Summary
Existing children's bicycles lack front and rear adjustment design, resulting in a fixed relative position between the seat and handlebars. This makes it impossible to dynamically adjust the riding posture according to the child's arm length and torso length, affecting riding comfort and the vehicle's adaptability to children of different body types.
Design a children's stroller with a two-way adjustable seat. The two-way adjustable components enable the seat to be adjusted forward and backward as well as up and down. The components include a fixed seat, a lifting seat, a contact plate, a limiting plate, an up and down adjusting screw, a support rod, a slider, a forward and backward adjusting screw, and a limiting seat. The position and height of the seat are adjusted by using threaded connections and rotating the adjusting screw.
With a two-way adjustable seat, children can adjust their riding posture according to their arm length and torso length, improving riding comfort and enhancing the vehicle's adaptability to children of different body types.
Smart Images
Figure CN224491310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of children's vehicle technology, specifically to a children's vehicle with a two-way adjustable seat. Background Technology
[0002] There are many types of children's vehicles, but children's bicycles are the most common. Children's bicycles are two-wheeled pedal vehicles designed specifically for children, conforming to their physical development characteristics and riding abilities. They are usually made of lightweight metals (such as aluminum alloys) or high-strength engineering plastics for the frame, and are equipped with adjustable seats and handlebars to accommodate the height changes of children at different ages (generally covering the growth cycle of 3-12 years old). The pedal power is transmitted to the rear wheel through a chain drive system, making them an important tool for children's outdoor activities, physical exercise, and exploration of the environment.
[0003] While existing children's bicycle seats generally have height adjustment, the lack of fore-and-aft adjustment and the fixed relative position of the seat and handlebars make it impossible to adjust the riding posture according to the child's arm length and torso length. When the seat is too close, the child needs to excessively bend their elbows to grip the handlebars, which can easily lead to shoulder and neck fatigue; when the seat is too far, the child needs to deliberately stretch their torso forward, causing concentrated pressure on the lower back, which may affect the normal development of the spine with long-term use. This "height adjustable but fore-and-aft fixed" situation makes it difficult for children to maintain the ideal riding posture with their upper body naturally leaning forward and their arms slightly bent, which not only limits riding comfort but also weakens the adaptability of the vehicle to children of different body types. Therefore, a children's bicycle with a two-way adjustable seat is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a children's bicycle with a two-way adjustable seat to solve the problem mentioned in the background art, which is that the lack of front and rear adjustment design makes it impossible to dynamically adjust the riding posture according to the child's arm length and torso length. This "height adjustable but front and rear fixed" situation makes it difficult for children to maintain the ideal riding posture with their upper body naturally leaning forward and their arms slightly bent, which not only limits the riding comfort but also weakens the vehicle's adaptability to children of different body types.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a children's stroller with a bidirectional adjustable seat, including a frame, on which a bidirectional adjustment assembly is installed, the bidirectional adjustment assembly including a fixed seat, a lifting seat, a contact plate, a limiting plate, an up-down adjusting screw, a support rod, a slider, a front-back adjusting screw, two limiting seats and bolts;
[0006] The slider is fixedly connected to the outer wall of the support rod, and the slider is slidably connected to the inside of the lifting seat. The two limiting seats are symmetrically fixedly connected to the upper and lower surfaces of the lifting seat by bolts. One end of the front and rear adjusting screw is rotatably connected to the rear surface of the slider, and the front and rear adjusting screw is threadedly connected to the inside of the lifting seat. A limiting groove is opened on one side of the lifting seat, and a contact plate is fixedly connected to the inner side wall of the limiting groove. One end of the up and down adjusting screw is rotatably connected to one side of the limiting plate, and the lifting seat is slidably connected to the inner side wall of the fixed seat.
[0007] Preferably, the slider described above is fitted to the opposite surfaces of the two limiting seats and is slidably connected to the limiting seats.
[0008] Preferably, the rear of the aforementioned fixing seat is provided with a clearance groove, and the front and rear adjusting screws are located inside the clearance groove.
[0009] Preferably, the aforementioned up and down adjusting screws are threaded into the interior of the fixed base.
[0010] Preferably, the aforementioned limiting plate is slidably connected to the inner wall of the limiting groove, and the side of the limiting plate away from the front and rear adjusting screws is in contact with the contact plate.
[0011] Preferably, the aforementioned mounting bracket is fixedly connected to the top of the vehicle frame.
[0012] Preferably, a car seat is mounted on the top of the aforementioned support rod.
[0013] Preferably, wheels are installed at both the front and rear of the frame, and handlebars are installed at the front of the frame.
[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0015] This invention uses a rotating front-to-back adjusting screw to drive a slider to move back and forth inside the lifting seat. The slider, via a support rod, moves the bicycle seat, thus adjusting its position. Rotating the up-and-down adjusting screw clockwise separates the limiting plate from the contact plate, adjusting the seat height. Rotating the screw counter-clockwise locks the seat height. Compared to existing technologies, this invention, by incorporating a bidirectional adjustment component, achieves both front-to-back and up-and-down adjustment of the seat. This allows for adjustments to the riding posture based on the child's arm length and torso length, improving riding comfort and enhancing the vehicle's adaptability to children of different body types. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the bidirectional adjustment component structure of this utility model;
[0019] Figure 3 This is an exploded view of the bidirectional adjustment component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the lifting seat structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the fixing base structure of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 101, bidirectional adjustment assembly; 11, fixed seat; 12, clearance groove; 13, lifting seat; 14, limiting groove; 15, contact plate; 16, limiting plate; 17, up-down adjusting screw; 18, support rod; 19, slider; 20, front-to-back adjusting screw; 21, limiting seat; 22, bolt; 31, frame; 32, wheel; 33, seat; 34, handlebars. Detailed Implementation
[0023] 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.
[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0025] Example
[0026] In existing technology, the lack of fore-and-aft adjustment design and the fixed relative position of the seat and handlebars make it impossible to dynamically adjust the riding posture according to the child's arm length and torso length. When the seat is too close, the child needs to bend their elbows excessively to grip the handlebars, which can easily cause shoulder and neck fatigue. When the seat is too far, the child needs to deliberately stretch their torso forward, resulting in concentrated pressure on the lower back. Long-term use may affect the normal development of the spine. This "height adjustable but fore-and-aft fixed" situation makes it difficult for children to maintain the ideal riding posture with their upper body naturally leaning forward and their arms slightly bent. This not only limits riding comfort but also weakens the vehicle's adaptability to children of different body types.
[0027] Please see Figures 1-5 This utility model provides a technical solution: a children's stroller with a bidirectional adjustable seat, including a frame 31, on which a bidirectional adjustment assembly 101 is installed. The bidirectional adjustment assembly 101 includes a fixed seat 11, a lifting seat 13, a contact plate 15, a limiting plate 16, an up-down adjusting screw 17, a support rod 18, a slider 19, a front-back adjusting screw 20, two limiting seats 21 and bolts 22;
[0028] The slider 19 is fixedly connected to the outer wall of the support rod 18, and the top of the support rod 18 is fitted with a car seat 33;
[0029] The slider 19 is slidably connected to the inside of the lifting seat 13. The two limiting seats 21 are symmetrically fixed to the upper and lower surfaces of the lifting seat 13 by bolts 22. The slider 19 fits against the opposite surfaces of the two limiting seats 21 and is slidably connected to the limiting seats 21. The upper and lower limiting seats 21 can effectively limit the position of the slider 19 and provide it with stable support. When a child sits on the car seat 33, this design can ensure that the car seat 33 obtains a stable support effect.
[0030] One end of the front-to-back adjustment screw 20 is rotatably connected to the rear surface of the slider 19, and the front-to-back adjustment screw 20 is threadedly connected to the inside of the lifting seat 13. When the front-to-back adjustment screw 20 is rotated, since the front-to-back adjustment screw 20 and the lifting seat 13 are threadedly connected, the front-to-back adjustment screw 20 can drive the slider 19 to move back and forth inside the lifting seat 13. The slider 19 drives the bicycle seat 33 through the support rod 18, thereby realizing the adjustment of the front and back position of the bicycle seat 33, so as to adjust the riding posture according to the child's arm length and torso length, improve riding comfort, and enhance the vehicle's adaptability to children of different body types.
[0031] A limiting groove 14 is provided on one side of the lifting seat 13. A contact plate 15 is fixedly connected to the inner wall of the limiting groove 14. One end of the up and down adjusting screw 17 is rotatably connected to one side of the limiting plate 16. The lifting seat 13 is slidably connected to the inner wall of the fixed seat 11. The limiting plate 16 is slidably connected to the inner wall of the limiting groove 14. The position of the limiting plate 16 can be limited by the limiting groove 14.
[0032] The side of the limiting plate 16 away from the front and rear adjusting screw 20 is in contact with the contact plate 15. The up and down adjusting screw 17 is threaded into the inside of the fixed seat 11. By rotating the up and down adjusting screw 17 clockwise, the up and down adjusting screw 17 drives the limiting plate 16 to separate from the contact plate 15. At this time, the car seat 33 is pulled, and the lifting seat 13 can move freely up or down in the fixed seat 11, thereby adjusting the height of the car seat 33.
[0033] When the up-and-down adjusting screw 17 is rotated counterclockwise, the up-and-down adjusting screw 17 causes the limiting plate 16 to fit tightly against the contact plate 15. At this time, the position of the lifting seat 13 is fixed, and the height position of the car seat 33 is locked accordingly.
[0034] The contact surfaces of the contact plate 15 and the limiting plate 16 are both provided with anti-slip texture, which can effectively enhance friction and further improve the stability of the car seat 33. The anti-slip texture is a complementary serration with a module of 0.5-1mm.
[0035] When adjusting the height of the car seat 33, the fore-aft position of the car seat 33 remains unchanged.
[0036] Locking nuts (not shown in the figure) are provided on the up-down adjusting screw 17 and the front-back adjusting screw 20. After the adjusting screw is adjusted, the locking nuts are tightened to prevent the adjusting screw from becoming loose due to vibration.
[0037] In this embodiment, specifically: a clearance groove 12 is provided at the rear of the fixed base 11, and the front and rear adjustment screw 20 is located inside the clearance groove 12. When adjusting the height of the car seat 33, the clearance groove 12 can be used to avoid the position of the front and rear adjustment screw 20.
[0038] In this embodiment, specifically: the fixed seat 11 is fixedly connected to the top of the frame 31, the front and rear of the frame 31 are equipped with wheels 32, the front of the frame 31 is equipped with handlebars 34, and the frame 31 is also equipped with a chain for driving the wheels 32 to rotate, thus forming a complete children's bicycle structure.
[0039] In another embodiment, with other structures remaining unchanged, the lifting seat 13 is provided with limit grooves 14 on both sides, and limit plates 16 and up-down adjusting screws 17 on both sides, so the lifting seat 13 can be locked from both sides, thereby improving the stability of the car seat 33.
[0040] The working principle or structural principle is that when adjusting the front and rear position of the car seat 33, the front and rear adjustment screw 20 is rotated. Since the front and rear adjustment screw 20 is connected to the lifting seat 13 by a thread, the front and rear adjustment screw 20 can drive the slider 19 to move back and forth inside the lifting seat 13. The slider 19 drives the car seat 33 through the support rod 18, thereby realizing the adjustment of the front and rear position of the car seat 33.
[0041] When adjusting the height of the car seat 33, rotate the up-down adjusting screw 17 clockwise. The up-down adjusting screw 17 drives the limiting plate 16 to separate from the contact plate 15. At this time, the lifting seat 13 can move freely up or down within the fixed seat 11, thereby adjusting the height of the car seat 33. After the height of the car seat 33 is determined, rotate the up-down adjusting screw 17 counterclockwise. The up-down adjusting screw 17 drives the limiting plate 16 to fit tightly with the contact plate 15. At this time, the position of the lifting seat 13 is fixed, and the height of the car seat 33 is locked. The height of the car seat 33 is fixed.
[0042] In summary, compared with the prior art, this utility model, by setting up a two-way adjustment component 101, realizes the two-way adjustment of the bicycle seat 33 in both forward and backward and up and down directions. This allows the riding posture to be adjusted according to the child's arm length and torso length, thereby improving riding comfort and enhancing the vehicle's adaptability to children of different body types.
[0043] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A stroller with a bidirectional adjustable seat, comprising a frame (31), characterized in that: The frame (31) is equipped with a bidirectional adjustment assembly (101), which includes a fixed seat (11), a lifting seat (13), a contact plate (15), a limiting plate (16), an up and down adjusting screw (17), a support rod (18), a slider (19), a front and rear adjusting screw (20), two limiting seats (21) and a bolt (22). The slider (19) is fixedly connected to the outer wall of the support rod (18). The slider (19) is slidably connected to the inside of the lifting seat (13). The two limiting seats (21) are symmetrically fixedly connected to the upper and lower surfaces of the lifting seat (13) by bolts (22). One end of the front and rear adjusting screw (20) is rotatably connected to the rear surface of the slider (19), and the front and rear adjusting screw (20) is threadedly connected to the inside of the lifting seat (13). A limiting groove (14) is opened on one side of the lifting seat (13). A contact plate (15) is fixedly connected to the inner wall of the limiting groove (14). One end of the up and down adjusting screw (17) is rotatably connected to one side of the limiting plate (16). The lifting seat (13) is slidably connected to the inner wall of the fixed seat (11).
2. A stroller with a bidirectional adjustable seat according to claim 1, characterized in that: The slider (19) is attached to the opposite surfaces of the two limiting seats (21) and is slidably connected to the limiting seats (21).
3. A stroller with a bidirectional adjustable seat according to claim 1, characterized in that: The rear of the fixed base (11) is provided with a relief groove (12), and the front and rear adjusting screws (20) are located inside the relief groove (12).
4. A stroller with a bidirectional adjustable seat according to claim 1, characterized in that: The up and down adjusting screw (17) is threaded into the inside of the fixed seat (11).
5. A stroller with a bidirectional adjustable seat according to claim 4, characterized in that: The limiting plate (16) is slidably connected to the inner wall of the limiting groove (14), and the side of the limiting plate (16) away from the front and rear adjusting screw (20) is in contact with the contact plate (15).
6. A stroller with a bidirectional adjustable seat according to claim 1, characterized in that: The mounting base (11) is fixedly connected to the top of the frame (31).
7. A stroller with a bidirectional adjustable seat according to claim 6, characterized in that: The top of the support rod (18) is fitted with a car seat (33).
8. A stroller with a bidirectional adjustable seat according to claim 7, characterized in that: The frame (31) is equipped with wheels (32) at both the front and rear, and the frame (31) is equipped with handlebars (34) at the front.