Child bicycle

Abstract

A rear fork is welded to the rear end of a main supporting beam, a front connecting seat is connected to the front end of the main supporting beam, a front fork is arranged in the front connecting seat, a steering handle is connected to the upper end of the front fork, a seat supporting rod is further welded to the rear side of the main supporting beam, a seat is connected to the seat supporting rod, and a channel is formed in the main supporting beam. The rear end of the main supporting beam is provided with a fixed seat which is connected with the main supporting beam in an inserted mode and integrally formed in an injection mode, a rotating seat capable of rotating in the fixed seat is arranged in the fixed seat, the rotating seat is connected with a steering control rope which penetrates through the fixed seat, the channel and the front connecting seat to be connected with the front fork, and a detachable push rod assembly is arranged in the rotating seat. Auxiliary wheel assemblies capable of being supported on the ground are further detachably connected to the two sides of the rear fork, a connecting frame is further fixedly connected to the main supporting beam, and a pedal assembly and a transmission mechanism capable of driving the rear wheel to rotate when the pedal assembly is pedaled are arranged on the connecting frame. The steering device is high in structural strength and can be controlled by an adult to steer.

Description

[Technical field]

[0001] The utility model relates to a children's bicycle. [Background technology]

[0002] Children's bicycles are tools for children to ride and play. They are common products for children to ride and play in their growth process.

[0003] Chinese patent announcement number (CN220262979U) discloses a baby stroller, wherein the front side of the frame of the baby stroller is connected with a front wheel and a direction control group for controlling the direction of the front wheel, the rear side of the frame is connected with a rear wheel, a rotating seat and a pedal group for driving the rotation are also connected to the frame, the rear wheel is fixedly connected with the rear wheel seat, and a linkage member connected with the rotating seat and the rear wheel seat is provided between the rotating seat and the rear wheel seat, which can drive the rear wheel to rotate when the rotating seat rotates. The frame includes a support beam, the front end of the support beam is connected with the direction control assembly, the rear end of the support beam is connected with a rear fork, the front end of the rear fork is provided with a support part, and the support part is provided with a seat for riding. It can be seen that the rear fork is connected to the front fork support beam through the support part, and the connection strength is low. Moreover, the baby stroller can only be ridden by the child himself. When the child is riding, the adult cannot control the direction of the baby stroller, and it is not suitable for children of younger age.

[0004] Therefore, the present invention is just produced based on the above shortcomings. [Utility Model Content]

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a children's bicycle which has high structural strength and can be steered by an adult.

[0006] The utility model is realized by the following technical solutions:

[0007] A children's bicycle comprises a frame 1, wherein the frame 1 comprises a main support beam 11, wherein a rear fork 12 for connecting a rear wheel 21 is welded to the rear end of the main support beam 11, wherein a front connecting seat 13 is connected to the front end of the main support beam 11, wherein a front fork 31 capable of rotating therein to control the direction is arranged in the front connecting seat 13, wherein the lower end of the front fork 31 is connected to the front wheel 22, wherein the upper end of the front fork 31 is connected to a steering handlebar 32, wherein a seat support rod 14 is welded to the rear side of the main support beam 11, wherein a seat 4 is connected to the seat support rod 14, and wherein a channel 15 is arranged in the main support beam 11, wherein the main support beam 11 The rear end is provided with a fixed seat 16 which is plug-connected and integrally injection-molded therewith, and the fixed seat 16 is provided with a rotating seat 51 which can rotate therein, and the rotating seat 51 is connected with a steering control rope 52 which passes through the fixed seat 16, the channel 15 and the front connecting seat 13 and is connected to the front fork 31, and a detachable push rod assembly 53 is provided in the rotating seat 51, and auxiliary wheel assemblies 6 which can be supported on the ground are detachably connected to both sides of the rear fork 12, and a connecting frame 17 is also fixedly connected to the main support beam 11, and a pedal assembly 7 and a transmission mechanism 8 which can drive the rear wheel 21 to rotate when the pedal assembly 7 is stepped on are provided on the connecting frame 17.

[0008] The main support beam 11 is a hollow tubular structure, the rear fork 12 is U-shaped, the closed end of the rear fork 12 is welded to the lower rear end of the main support beam 11, and the outer side surface of the rear fork 12 and the rear end surface of the main support beam 11 form a socket 18 connected to the channel 15, the fixed seat 16 includes a main body 161, the main body 161 is provided with a plug-in portion 162 inserted into the socket 18, the main body 161 is provided with a mounting groove 163, the rotating seat 51 is arranged in the mounting groove 163, and the plug-in portion 162 is provided with a wire groove 164 for the steering control rope 52 to move therein.

[0009] The two sides of the lower end of the body 161 are provided with abutting parts 165 which can abut against the inner wall of the rear fork 12 and match and fit with the outer surface of the rear fork 12 when the inserting part 162 is inserted into the socket 18.

[0010] The pedal assembly 7 is detachably connected to the connecting frame 17 , and the main body 161 is provided with a plug-in hole 166 for the pedal assembly 7 to be plugged in and placed when the pedal assembly 7 is detached from the connecting frame 17 .

[0011] The connecting frame 17 is arranged at the connecting position of the main support beam 11 and the rear fork 12. The connecting frame 17 includes a frame body 171. The frame body 171 is provided with a matching groove 172 that matches and fits with the rear part of the main support beam 11. The frame body 171 is also provided with a connecting plate 173 that extends backward and is connected to the lower end of the fixing seat 16 and wraps the lower surface of the rear fork 12. The pedal assembly 7 is connected to the frame body 171.

[0012] The frame 171 is also provided with a placing platform 174 for children to place their feet.

[0013] A shell 9 extending forward and backward is provided on one side of the connecting frame 17 , and the transmission mechanism 8 is provided in the shell 9 . The transmission mechanism 8 is a belt transmission assembly 81 provided between the pedal assembly 7 and the rear wheel 21 .

[0014] A plug connector 167 is disposed at the rear side of the body 161 , and a fender 100 is detachably connected to the plug connector 167 .

[0015] The lower end of the seat support rod 14 passes through the side wall of the main support beam 11 and is inserted into the main support beam 11 , and the outer wall of the main support beam 11 and the outer wall of the seat support rod 14 are welded and connected at the joint position.

[0016] When the plug-in portion 162 is plugged into the socket 18 , the shape of the end of the plug-in portion 162 matches and fits with the outer side surface of the seat support rod 14 .

[0017] Compared with the prior art, the utility model has the following advantages: the rear fork and the seat support rod of the utility model are welded and connected to the main support beam, so the frame has sufficient structural strength, and the rear end of the main support beam is plugged with an integral injection molded fixed seat, the fixed seat is connected to a rotating seat that can be driven and rotated by a push rod assembly, and the rotating seat is connected to a steering control rope, and the steering control rope passes through the fixed seat and the channel on the main support beam and is connected to the front fork, so that the adult can drive the rotating seat to rotate through the push rod assembly and then control the direction of the front wheel through the steering control rope, which is convenient for the adult to control the direction of the children's bicycle. Therefore, when a younger child rides on the children's bicycle, the push rod assembly is connected to the rotating seat, and the auxiliary wheel assembly is supported on the ground, and the adult can push the children's bicycle through the push rod assembly and control the direction of travel, which is convenient for caring for the children. When an older child rides, the auxiliary wheel assembly and the push rod assembly can be disassembled, and the child rides and plays alone. Therefore, the utility model children's bicycle can adapt to both younger children riding and older children riding alone, and has various functions. More importantly, while adults are able to control the direction of the children's bicycle, the frame can also have a sufficiently high structural strength, achieving the best of both worlds and being suitable for promotion and application.

Brief Description of the Drawings

[0018] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0019] Figure 2 This is the second stereogram of the utility model;

[0020] Figure 3 It is one of the three-dimensional diagrams of the components of the utility model;

[0021] Figure 4 This is the second stereogram of the components of the utility model;

[0022] Figure 5 It is an exploded view of the components of the utility model;

[0023] Figure 6 It is a three-dimensional diagram of the frame of the utility model;

[0024] Figure 7 It is one of the three-dimensional diagrams of the fixing seat of the utility model;

[0025] Figure 8 This is the second stereoscopic view of the fixing seat of the utility model;

[0026] Fig. 9 It is a three-dimensional diagram of the connecting frame of the utility model;

[0027] Fig.10 It is a cross-sectional view of the utility model. [Specific implementation method]

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] like Figures 1 to 10As shown, a children's bicycle comprises a frame 1, wherein the frame 1 comprises a main support beam 11, wherein a rear fork 12 for connecting a rear wheel 21 is welded to the rear end of the main support beam 11, wherein a front connecting seat 13 is connected to the front end of the main support beam 11, wherein a front fork 31 capable of rotating therein to control the direction is arranged in the front connecting seat 13, wherein the lower end of the front fork 31 is connected to the front wheel 22, wherein the upper end of the front fork 31 is connected to a steering handlebar 32, wherein a seat support rod 14 is welded to the rear side of the main support beam 11, wherein the rear fork 12 and the seat support rod 14 are welded to the main support beam 11, and therefore, the frame 1 has sufficient structural strength. The seat support rod 14 is connected to a seat 4, and the child sits on the seat 4 when riding. In addition, a channel 15 is provided in the main support beam 11, and a fixed seat 16 which is plug-connected and integrally injection-molded is provided at the rear end of the main support beam 11, and a rotating seat 51 which can rotate therein is provided in the fixed seat 16, and a steering control rope 52 which passes through the fixed seat 16, the channel 15 and the front connecting seat 13 and is connected to the front fork 31 is connected to the rotating seat 51, and a detachable push rod assembly 53 is provided in the rotating seat 51, and auxiliary wheel assemblies 6 which can be supported on the ground are detachably connected to both sides of the rear fork 12, and a connecting frame 17 is also fixedly connected to the main support beam 11, and a pedal assembly 7 and a transmission mechanism 8 which can drive the rear wheel 21 to rotate when the pedal assembly 7 is stepped on are provided on the connecting frame 17. When a younger child rides on the children's bicycle, a push rod assembly 53 is connected to the rotating seat 51, and the auxiliary wheel assembly 6 is supported on the ground. At this time, an adult can apply a driving force to the rotating seat 51 through the push rod assembly 53. When the rotating seat 51 rotates, the front fork 31 can be pulled to rotate through the steering control rope 52, thereby controlling the forward direction of the children's bicycle. The child sits on the seat 4 and holds the steering handle 32 with both hands. When an older child rides on the bicycle, the auxiliary wheel assembly 6 and the push rod assembly 53 can be removed. The child can drive the rear wheel 21 to rotate by stepping on the pedal assembly 7 and driving the transmission mechanism 8 to drive the children's bicycle forward. In this mode, the child controls the forward direction by the steering handle 32 and can ride and play alone. The children's bicycle can be adapted to both younger children riding and older children riding alone, and has a wide range of applications. In particular, while satisfying the requirement that adults can control the forward direction of the children's bicycle, the frame 1 can also be ensured to have a sufficiently high structural strength, achieving the best of both worlds.

[0030] like Figures 3 to 8As shown, the main support beam 11 is a hollow tubular structure, the rear fork 12 is U-shaped, the closed end of the rear fork 12 is welded to the lower rear end of the main support beam 11, and the outer side surface of the rear fork 12 and the rear end surface of the main support beam 11 form a socket 18 communicated with the channel 15, the fixed seat 16 includes a main body 161, the main body 161 is provided with a plug-in portion 162 for inserting the socket 18, the main body 161 is provided with a mounting groove 163, the rotating seat 51 is arranged in the mounting groove 163, the plug-in portion 162 is provided with a wire groove 164 for the steering control rope 52 to move therein, and the lower end of the main body 161 is provided with abutment portions 165 on both sides, which can abut against the inner wall of the rear fork 12 and match and fit with the outer surface of the rear fork 12 when the plug-in portion 162 is plugged into the socket 18. The fixed seat 16 for mounting the rotating seat 51 is inserted into the socket 18 of the main support beam 11 through the plug-in portion 162, and the abutment portion 165 on the fixed seat 16 abuts against the outer surface of the rear fork 12 and can match and fit, which can ensure that the fixed seat 16 is firmly connected to the main support beam 1. When the adult rotates the rotating seat 51 through the push rod assembly 53, the steering control rope 52 moves in the wire groove 164 and the channel 15, thereby controlling the front fork 31 to rotate and turn.

[0031] like Figure 1 , Figure 7 and Figure 8 As shown, the pedal assembly 7 is detachably connected to the connecting frame 17, and the main body 161 is provided with a plug hole 166 for inserting and placing the pedal assembly 7 when the pedal assembly 7 is detached from the connecting frame 17. When an older child rides alone, the pedal assembly 7 is connected to the connecting frame 17, and when a younger child rides, the pedal assembly 7 can be removed from the connecting frame 17 and inserted into the plug hole 166 of the fixing seat 16, so as to prevent the pedal assembly 7 from rotating continuously and scratching the child's legs when the adult pushes the children's bicycle forward.

[0032] like Figure 3 , Figure 5 and Fig. 9As shown, the connecting frame 17 is arranged at the connection position between the main support beam 11 and the rear fork 12, and the connecting frame 17 includes a frame body 171, and the frame body 171 is provided with a matching groove 172 that matches and fits with the rear part of the main support beam 11, and the frame body 171 is also provided with a connecting plate 173 that extends backward and is connected to the lower end of the fixing seat 16 and wraps the lower surface of the rear fork 12, and the pedal assembly 7 is connected to the frame body 171, and the frame body 171 is also provided with a placing table 174 for children's feet to rest. The main support beam 11 is clamped in the matching groove 172, and the connecting frame 17 semi-encloses the main support beam 11, so that the two are firmly connected. In addition, the connecting plate 173 on the frame body 171 is connected to the lower end of the fixing seat 16, so that the connecting frame 17 and the fixing seat 16 together clamp the closed end of the U-shaped rear fork 12, and the plug-in portion 162 is plugged into the main support beam 11, so that the connection between the connecting frame 17 and the fixing seat 16 and the frame 1 is very secure.

[0033] like Figure 2 , Figure 3 and Figure 5 As shown, a shell 9 extending forward and backward is provided on one side of the connecting frame 17, and the transmission mechanism 8 is provided in the shell 9, and the transmission mechanism 8 is a belt transmission assembly 81 provided between the pedal assembly 7 and the rear wheel 21. A shelf 91 for children's feet can also be provided on the shell 9, and the children can place their feet on the shelf 174 and the shelf 91 when riding.

[0034] like Figure 2 , Figure 8 and Fig.10 As shown, a plug connector 167 is disposed at the rear side of the body 161 , and a fender 100 is detachably connected to the plug connector 167 .

[0035] like Fig.10 As shown, the lower end of the seat support rod 14 passes through the side wall of the main support beam 11 and is inserted into the main support beam 11. The outer wall of the main support beam 11 and the outer wall of the seat support rod 14 are welded and connected at the joint position, so that the connection between the seat support rod 14 and the main support beam 11 is very firm. In addition, when the plug-in portion 162 is plugged into the socket 18, the shape of the end of the plug-in portion 162 matches and fits the outer side of the seat support rod 14.

[0036] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A children's bicycle, characterized in that: The bicycle frame (1) comprises a main support beam (11), a rear fork (12) for connecting a rear wheel (21) is welded to the rear end of the main support beam (11), a front connection seat (13) is connected to the front end of the main support beam (11), a front fork (31) which can rotate therein to control the direction is arranged in the front connection seat (13), the lower end of the front fork (31) is connected to the front wheel (22), the upper end of the front fork (31) is connected to the steering handle (32), a seat support rod (14) is welded to the rear side of the main support beam (11), a seat (4) is connected to the seat support rod (14), and a channel (15) is arranged in the main support beam (11), and the rear end of the main support beam (11) is provided with a A fixed seat (16) is plug-connected and integrally injection-molded therewith, a rotating seat (51) is arranged inside the fixed seat (16) and can rotate therein, a steering control rope (52) is connected to the rotating seat (51) and passes through the fixed seat (16), a channel (15) and a front connecting seat (13) and is connected to the front fork (31), a detachable push rod assembly (53) is arranged inside the rotating seat (51), auxiliary wheel assemblies (6) that can be supported on the ground are detachably connected to both sides of the rear fork (12), a connecting frame (17) is also fixedly connected to the main supporting beam (11), and a pedal assembly (7) and a transmission mechanism (8) that can drive the rear wheel (21) to rotate when the pedal assembly (7) is stepped on are arranged on the connecting frame (17).

2. The children's bicycle according to claim 1, characterized in that: The main support beam (11) is a hollow tubular structure, the rear fork (12) is U-shaped, the closed end of the rear fork (12) is welded to the lower rear end of the main support beam (11), and the outer side surface of the rear fork (12) and the rear end surface of the main support beam (11) form a socket (18) communicating with the channel (15), the fixed seat (16) includes a body (161), the body (161) is provided with a plug-in portion (162) inserted into the socket (18), the body (161) is provided with a mounting groove (163), the rotating seat (51) is arranged in the mounting groove (163), and the plug-in portion (162) is provided with a wire groove (164) for the steering control rope (52) to move therein.

3. The children's bicycle according to claim 2, characterized in that: Both sides of the lower end of the body (161) are provided with abutment portions (165) which can abut against the inner wall of the rear fork (12) and match and fit with the outer surface of the rear fork (12) when the insertion portion (162) is inserted into the socket (18).

4. The children's bicycle according to claim 2, characterized in that: The pedal assembly (7) is detachably connected to the connecting frame (17), and the body (161) is provided with a plug-in hole (166) for plugging and placing the pedal assembly (7) when the pedal assembly (7) is detached from the connecting frame (17).

5. The children's bicycle according to any one of claims 1 to 4, characterized in that: The connecting frame (17) is arranged at the connection position between the main support beam (11) and the rear fork (12), and the connecting frame (17) includes a frame body (171). The frame body (171) is provided with a matching groove (172) that matches and fits with the rear part of the main support beam (11). The frame body (171) is also provided with a connecting plate (173) that extends backward and is connected to the lower end of the fixing seat (16) and wraps around the lower surface of the rear fork (12). The pedal assembly (7) is connected to the frame body (171).

6. The children's bicycle according to claim 5, characterized in that: The frame (171) is also provided with a placing platform (174) for children to place their feet.

7. The children's bicycle according to claim 5, characterized in that: A shell (9) extending forward and backward is provided on one side of the connecting frame (17), and the transmission mechanism (8) is arranged in the shell (9). The transmission mechanism (8) is a belt transmission assembly (81) arranged between the pedal assembly (7) and the rear wheel (21).

8. The children's bicycle according to claim 2, characterized in that: A plug connector (167) is provided at the rear side of the body (161), and a fender (100) is detachably connected to the plug connector (167).

9. The children's bicycle according to claim 2, characterized in that: The lower end of the seat support rod (14) passes through the side wall of the main support beam (11) and is inserted into the interior of the main support beam (11), and the outer wall of the main support beam (11) and the outer wall of the seat support rod (14) are welded and connected at the joint position.

10. The children's bicycle according to claim 9, characterized in that: When the plug-in portion (162) is plugged into the socket (18), the shape of the end of the plug-in portion (162) matches and fits the outer side surface of the seat support rod (14).

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