CN210502977U

CN210502977U - Multifunctional children bicycle

Info

Publication number: CN210502977U
Application number: CN201921535100.9U
Authority: CN
Inventors: 沈建敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-12
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to a multi-functional children bicycle, including the bicycle frame, the bicycle frame is by preceding breeches pipe, back breeches pipe, and preceding stay tube and back stay tube are constituteed, and preceding breeches pipe and preceding stay tube fixed connection, back breeches pipe and back stay tube fixed connection install the front wheel on the preceding breeches pipe, install the rear wheel on the back breeches pipe, the tip of preceding stay tube stretches into in the back stay tube and fixed through clamping mechanism, the both sides installation auxiliary wheel subassembly of back breeches pipe, the junction of preceding breeches pipe and back breeches pipe is fixed with the seat pipe, and the top of seat pipe has the saddle, the bottom fixed mounting dish of seat pipe, and the bottom of mounting dish is through connecing subassembly fixed connection sprocket assembly soon. This bicycle possesses that the frame is scalable, supplementary wheel pole quick detach and the dual-purpose function of whole car, and the function is diversified, convenient to use.

Description

Multifunctional children bicycle

Technical Field

The utility model relates to a multi-functional children bicycle.

Background

The children bike is a large door class among the children bike, the children bike is including taking the children bike and the children's car of sliding of auxiliary wheel, present take auxiliary wheel children bike and children car of sliding all are single existence, can't come realization structure and the conversion in the function through the quick detach of subassembly between the two, therefore, parents are in order to adapt to child's exercise demand, need purchase auxiliary wheel children bike and children car of sliding for child, economic burden has been increaseed like this, the indoor space that two bicycles occupy is also very big, the children bike of this patent design can realize taking auxiliary wheel children bike and children car of sliding structure and the conversion in the function through the quick detach of subassembly, a children bike possesses above both functions, high durability and convenient use.

Disclosure of Invention

The utility model aims at providing a multifunctional children bicycle in order to solve the defects existing in the prior art.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a multi-functional children bicycle, includes the bicycle frame, and the bicycle frame comprises preceding spinal branch pipe, back spinal branch pipe, preceding spinal branch pipe and preceding spinal branch pipe fixed connection, back spinal branch pipe and back spinal branch pipe fixed connection, installs the front wheel on the preceding spinal branch pipe, installs the rear wheel on the back spinal branch pipe, the tip of preceding spinal branch pipe stretches into in the back spinal branch pipe and fixed through clamping mechanism, the supplementary wheel subassembly of both sides installation of back spinal branch pipe, the junction of preceding spinal branch pipe and back spinal branch pipe is fixed with the seat pipe, and the top of seat pipe has the saddle, and the bottom fixed mounting dish of seat pipe, the bottom of mounting dish are through connecing subassembly fixed connection sprocket assembly soon.

Further, clamping mechanism is including fixing the tight clamp of clamp at back stay tube tip, and the tight clamp of clamp has the opening, and the articulated adjustment handle of opening part of the tight clamp of clamp presss from both sides, presss from both sides tight clamp centre gripping in the junction of preceding stay tube and back stay tube.

Furthermore, the auxiliary wheel assembly comprises a fixed block fixed on the end part of the rear fork tube, the fixed block is connected with an auxiliary wheel rod, and the end part of the auxiliary wheel rod is connected with an auxiliary wheel.

Furthermore, the end of the auxiliary wheel rod, which is far away from the auxiliary wheel, is provided with a U-shaped bayonet, the two sides of the fixing block are provided with limiting ports corresponding to the U-shaped bayonet, and the auxiliary wheel rod is buckled on the outer side of the fixing block and is fixedly connected with the fixing block through a bolt.

Further, the chain wheel assembly comprises a front chain wheel arranged at the bottom of the seat tube and positioned on a rear chain wheel at the bottom of the rear fork tube, the front chain wheel is connected with the rear chain wheel through a chain, the middle of the front chain wheel is fixedly connected with a crankshaft, pedals are fixedly connected with the two ends of the crankshaft, and the middle of the crankshaft is connected with the bottom of the mounting disc through the quick-connection assembly.

Furthermore, the quick-connecting assembly comprises an upper connecting cover plate and a lower connecting cover plate which are connected through a bolt, the upper connecting cover plate and the lower connecting cover plate enclose a fixing sleeve, the fixing sleeve is sleeved on the outer side of the crankshaft, the upper connecting cover plate is fixedly connected with the bottom of the mounting disc through the bolt, a rotating support disc is fixed on the crankshaft, and the rotating support disc is located at the end of the fixing sleeve.

The utility model has the advantages that: the auxiliary wheel assemblies are installed on two sides of a rear fork tube of the children bicycle, a seat tube is fixed at the joint of a front fork tube and the rear fork tube, a saddle is arranged at the top of the seat tube, a mounting disc is fixed at the bottom of the seat tube, and the bottom of the mounting disc is fixedly connected with a chain wheel assembly through a quick connection assembly;

in addition, after the auxiliary wheel assembly and the chain wheel assembly are removed, the child bicycle can be changed into a child scooter, and when the auxiliary wheel assembly is removed, the bolt on the auxiliary wheel rod is directly unscrewed and the auxiliary wheel rod is pulled away, so that the U-shaped bayonet on the auxiliary wheel rod is separated from the limiting opening on the fixing block; when the chain wheel assembly is dismounted, the chain wheel assembly is supported and fixed at the bottom of the mounting disc mainly through the upper connecting cover plate and the lower connecting cover plate, the lower connecting cover plate at the bottom of the mounting disc is firstly dismounted, then the crankshaft is drawn out, the front chain wheel fixed on the crankshaft is dismounted, the supporting disc is rotated, the two pedals are dismounted together, and finally the rear chain wheel and the upper connecting cover plate are dismounted, so that the dismounting work of the chain wheel assembly can be completed;

in addition, the tip of the preceding stay tube of this bicycle stretches into in the back stay tube and fixed through clamping mechanism, tight mechanism is including fixing the tight clamp of clamp at back stay tube tip, it has the opening to press from both sides tight clamp, the articulated adjustment handle of opening part that presss from both sides tight clamp, press from both sides the tight clamp centre gripping in the junction of preceding stay tube and back stay tube, after rotating the adjustment handle, it becomes loose to press from both sides tight clamp, preceding stay tube and back stay tube can stretch out and draw back relatively, the whole horizontal length of bicycle frame can freely be adjusted, be fit for the children of different risees and use.

In conclusion, the bicycle has the advantages of telescopic frame, quick detachment of the auxiliary wheel rod and dual-purpose function of the bicycle, diversified functions and convenient use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of another aspect of the present invention;

FIG. 3 is a schematic bottom structure of the present invention;

FIG. 4 is a schematic structural view of the sprocket assembly of the present invention;

FIG. 5 is a schematic view of the sprocket assembly of the present invention after removal;

FIG. 6 is a schematic view of the present invention when the sprocket assembly is removed and turned into a scooter;

fig. 7 is a schematic view of the clamping mechanism of the present invention;

fig. 8 is an assembly diagram of the auxiliary wheel assembly of the present invention.

Detailed Description

As shown in fig. 1 to 8, a multifunctional children bicycle, which comprises a bicycle frame, the bicycle frame is composed of a front fork tube 1, a rear fork tube 2, a front supporting tube 3 and a rear supporting tube 4, the front fork tube 1 is fixedly connected with the front supporting tube 3, the rear fork tube 2 is fixedly connected with the rear supporting tube 4, a front wheel 5 is installed on the front fork tube 1, a rear wheel 6 is installed on the rear fork tube 2, the end part of the front supporting tube 3 extends into the rear supporting tube 4 and is fixed through a clamping mechanism 7, auxiliary wheel assemblies 8 are installed on two sides of the rear fork tube 2, a seat tube 9 is fixed at the joint of the front fork tube 1 and the rear fork tube 2, a saddle 10 is arranged at the top of the seat tube 9, a bottom fixing mounting disc 11 of the seat tube 9 is fixed at the bottom of the mounting disc 11 through a quick-connection assembly, and a chain wheel assembly 12 is fixedly connected at.

Further, the clamping mechanism 7 comprises a clamping hoop 71 fixed at the end of the rear support tube 4, the clamping hoop 71 is provided with an opening, the opening of the clamping hoop 71 is hinged with an adjusting handle 72, and the clamping hoop 71 is clamped at the joint of the front support tube 3 and the rear support tube 4.

The auxiliary wheel assembly 8 comprises a fixing block 81 fixed on the end part of the rear fork tube 2, the fixing block 81 is connected with an auxiliary wheel rod 82 in a quick mode, and the end part of the auxiliary wheel rod 82 is connected with an auxiliary wheel 83. One end of the auxiliary wheel rod 82, which is far away from the auxiliary wheel 83, is provided with a U-shaped bayonet 84, two sides of the fixing block 81 are provided with limiting ports 85 corresponding to the U-shaped bayonet 84, and the auxiliary wheel rod 82 is buckled on the outer side of the fixing block 81 and is fixedly connected with the fixing block 81 through a bolt 86.

Further, sprocket assembly 12 includes that setting up front sprocket 121 in seat pipe 9 bottom, is located back sprocket 122 in back breeches pipe 2 bottom, and front sprocket 121 passes through the chain with back sprocket 122 and is connected, and the middle part fixed connection bent axle 123 of front sprocket 121, the both ends fixed connection footboard 124 of bent axle 123, the middle part of bent axle 123 is connected with the bottom of mounting disc 11 through the quick-connect subassembly.

The quick connection assembly comprises an upper connection cover plate 125 and a lower connection cover plate 126 which are connected through a bolt, the upper connection cover plate 125 and the lower connection cover plate 126 are enclosed to form a fixed sleeve, the fixed sleeve is sleeved on the outer side of the crankshaft 123, the upper connection cover plate 125 is fixedly connected with the bottom of the mounting plate 11 through a bolt, a rotation support plate 127 is fixed on the crankshaft 123, and the rotation support plate 127 is located at the end of the fixed sleeve.

Auxiliary wheel assemblies 8 are mounted on two sides of a rear fork tube 2 of the children bicycle, a seat tube 9 is fixed at the joint of a front fork tube 1 and the rear fork tube 2, a saddle 10 is arranged at the top of the seat tube 9, a mounting disc 11 is fixed at the bottom of the seat tube 9, and the bottom of the mounting disc 11 is fixedly connected with a chain wheel assembly 12 through a quick-connection assembly;

in addition, after the auxiliary wheel assembly 8 and the chain wheel assembly 12 are removed, the children bicycle can be changed into a children scooter, and when the auxiliary wheel assembly 8 is removed, the bolt 86 on the auxiliary wheel rod 82 is directly unscrewed and is pulled away from the auxiliary wheel rod 82, so that the U-shaped bayonet 84 on the auxiliary wheel rod 82 is separated from the limiting port 85 on the fixing block 81; when the chain wheel assembly 12 is dismounted, the chain wheel assembly 12 is supported and fixed at the bottom of the mounting disc 11 mainly through the upper connecting cover plate 125 and the lower connecting cover plate 126, the lower connecting cover plate 126 at the bottom of the mounting disc 11 is firstly dismounted, then the crankshaft 123 is drawn out, the front chain wheel 121 fixed on the crankshaft 123, the rotating support plate 127 and the two pedals 124 are dismounted together, finally the rear chain wheel 122 and the upper connecting cover plate 125 are dismounted, the dismounting work of the chain wheel assembly 12 can be completed, after the auxiliary wheel assembly 8 and the chain wheel assembly 12 are dismounted, the children bicycle can be changed into a children scooter, the quick change of functions can be completed through the quick dismounting of the assemblies, and the dual-purpose function of one bicycle;

in addition, the end part of the front supporting tube 3 of the bicycle extends into the rear supporting tube 4 and is fixed through the clamping mechanism 7, the clamping mechanism 7 comprises a clamping hoop 71 fixed at the end part of the rear supporting tube 4, the clamping hoop 71 is provided with an opening, an adjusting handle 72 is hinged to the opening of the clamping hoop 71, the clamping hoop 71 is clamped at the joint of the front supporting tube 3 and the rear supporting tube 4, the clamping hoop 71 is loosened after the adjusting handle 72 is rotated, the front supporting tube 3 and the rear supporting tube 4 can stretch out and draw back relatively, the overall horizontal length of the bicycle frame can be adjusted freely, and the bicycle frame is suitable for being used by children with different heights.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multi-functional children bicycle, includes the bicycle frame, and the bicycle frame comprises preceding breeches pipe, back breeches pipe, preceding stay tube and back stay tube, preceding breeches pipe and preceding stay tube fixed connection, back breeches pipe and back stay tube fixed connection, installation front wheel on the preceding breeches pipe, installation rear wheel on the back breeches pipe, its characterized in that, the tip of preceding stay tube stretches into in the back stay tube and fixed through clamping mechanism, the supplementary wheel subassembly of both sides installation of back breeches pipe, the junction of preceding breeches pipe and back breeches pipe are fixed with the seat pipe, and the top of seat pipe has the saddle, the bottom fixed mounting dish of seat pipe, and the bottom of mounting dish is through connecing subassembly fixed connection sprocket assembly soon.

2. A multi-function children's bicycle according to claim 1, wherein the clamping mechanism includes a clamping band fixed to an end of the rear support tube, the clamping band having an opening, the opening of the clamping band being hinged to an adjustment handle, the clamping band being clamped at a junction of the front support tube and the rear support tube.

3. A multi-function children's bicycle according to claim 1, wherein the auxiliary wheel assembly includes a fixing block fixed on the end of the rear fork tube, the fixing block is connected with the auxiliary wheel rod, and the end of the auxiliary wheel rod is connected with the auxiliary wheel.

4. The multifunctional children bicycle as claimed in claim 3, wherein the auxiliary wheel rod has a U-shaped bayonet at one end away from the auxiliary wheel, the fixing block has limiting openings at both sides corresponding to the U-shaped bayonet, and the auxiliary wheel rod is fastened to the outside of the fixing block and is fixedly connected to the fixing block through a bolt.

5. The multifunctional children bicycle as claimed in claim 4, wherein the sprocket assembly comprises a front sprocket arranged at the bottom of the seat tube and a rear sprocket arranged at the bottom of the rear fork tube, the front sprocket and the rear sprocket are connected through a chain, the middle of the front sprocket is fixedly connected with a crankshaft, the two ends of the crankshaft are fixedly connected with pedals, and the middle of the crankshaft is connected with the bottom of the mounting plate through the quick-connection assembly.

6. The multi-functional children's bicycle of claim 5, wherein the quick-connect assembly comprises an upper connection cover plate and a lower connection cover plate, the upper connection cover plate and the lower connection cover plate enclose a fixed sleeve, the fixed sleeve is sleeved outside the crankshaft, the upper connection cover plate is fixedly connected with the bottom of the mounting plate through a bolt, the crankshaft is fixedly provided with a rotation support plate, and the rotation support plate is located at the end of the fixed sleeve.