Folding bicycle

Abstract

The utility model belongs to the technical field of outdoor foldable transportation equipment, and particularly relates to a folding vehicle. The utility model provides a folding bicycle and aims to solve the problem of poor stability of a folding bicycle in the prior art. A folding bicycle comprises a front stand column assembly and a rear stand column assembly, a third folding assembly is composed of a ninth rod piece, a tenth rod piece, an eleventh rod piece and a twelfth rod piece, and a stable structure is formed by connecting the ninth rod piece, the tenth rod piece, the eleventh rod piece and the twelfth rod piece through a first connector. The structure has high mechanical stability and can effectively resist external impact and deformation, so that the stability of the folding bicycle in the running process is remarkably improved. A third folding assembly in the side folding rod set is located between the second stand column and the third stand column, and stable connection between the front stand column and the rear stand column is achieved through rotating connection of rod pieces and arrangement of a sliding base. By means of the connecting mode, the overall structural strength of the folding bicycle is enhanced, and the stability of the folding bicycle under the complex road condition is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of outdoor foldable transportation equipment, and particularly relates to a folding bicycle. Background Art

[0002] With the rise of outdoor activities such as picnics and camping, outdoor folding carts have been widely used in such outdoor activities due to their strong cargo capacity and foldable and easy-to-carry features.

[0003] Common outdoor folding strollers in the prior art generally include a foldable frame and four wheels. The folding frame consists of two side folding frames, front and rear fixed frames, and a bottom folding frame. While these folding strollers can meet practical requirements, they suffer from an unreasonable structure and poor stability during use. Utility Model Content

[0004] The utility model provides a folding bicycle, aiming to solve the problem of poor stability of folding bicycles in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A folding bicycle comprises a front column assembly and a rear column assembly, wherein the front column assembly comprises a first column and a second column, and the rear column assembly comprises a third column and a fourth column;

[0007] A side folding rod assembly is provided between the front column assembly and the rear column assembly, the side folding rod assembly includes a third folding assembly provided between the second column and the third column, a second slide is slidably provided on the second column, and a third slide is provided on the third column;

[0008] The third folding assembly includes a ninth rod rotatably connected to the second column, a tenth rod rotatably connected to the third column, an eleventh rod rotatably connected to the second slide, and a twelfth rod rotatably connected to the third slide. An end of the ninth rod away from the second column and an end of the tenth rod away from the third column are connected via a first connector. The ninth rod is rotatably connected to the first connector. The tenth rod is rotatably connected to the first connector. An end of the eleventh rod away from the second slide is rotatably connected to the middle part of the ninth rod. An end of the twelfth rod away from the third slide is rotatably connected to the middle part of the tenth rod.

[0009] A further improved solution: the side folding rod group includes a fourth folding assembly arranged between the first column and the fourth column, the first slide being provided on the first column, and the fourth slide being provided on the fourth column, the fourth folding assembly including a thirteenth rod rotatably connected to the first column, a fourteenth rod rotatably connected to the fourth column, a fifteenth rod rotatably connected to the first slide, and a sixteenth rod rotatably connected to the fourth slide, an end of the thirteenth rod away from the first column and an end of the fourteenth rod away from the fourth column are connected via a second connector, the thirteenth rod is rotatably connected to the second connector, the fourteenth rod is rotatably connected to the second connector, the end of the fifteenth rod away from the first slide is rotatably connected to the middle portion of the thirteenth rod, and the end of the sixteenth rod away from the fourth slide is rotatably connected to the middle portion of the fourteenth rod.

[0010] Based on the above technical solution: By installing a side folding rod assembly between the front and rear pillar assemblies, and in particular introducing the fourth folding assembly, the overall rigidity and connection strength of the folding bicycle are effectively enhanced. This design makes the folding bicycle more stable in the unfolded state, reducing the shaking and tilting caused by uneven roads or improper operation, thereby improving the rider's sense of safety and comfort. The layout and rotational connection of the thirteenth, fourteenth, fifteenth, and sixteenth rods not only realize the folding function, but also form a stable frame through the interaction between the rods. This structure is more mechanically stable, can withstand greater external impact, and extend the service life of the folding bicycle.

[0011] A further improved solution: a first folding component is provided between the first column and the second column, a second folding component is provided between the third column and the fourth column, and a fifth folding component is further provided between the front column assembly and the rear column assembly. The first folding component, the second folding component, the third folding component, and the fourth folding component form the side walls of the folding cart, and the fifth folding component forms the bottom wall of the folding cart. The fifth folding component is folded from bottom to top, and when the fifth folding component is in the unfolded state, the first folding component, the second folding component, the third folding component, and the fourth folding component are all locked in the unfolded state.

[0012] Based on the above technical solution, the first, second, third, and fourth folding assemblies together form the side walls of the folding stroller. These folding assemblies are connected by a rotational connection, ensuring the stability of the side walls when the folding stroller is unfolded. They also provide flexibility and convenience when the folding stroller is folded. The fifth folding assembly serves as the bottom wall of the folding stroller. Its unique bottom-up folding design not only facilitates storage and portability, but also provides additional support and stability for the entire folding stroller when unfolded.

[0013] A further improved solution: the first folding component includes a first rod rotatably set on the first column, a second rod rotatably set on the second column, a third rod rotatably set on the first slide and a fourth rod rotatably set on the second slide, the middle part of the first rod is rotatably connected to the middle part of the third rod, the middle part of the second rod is rotatably connected to the middle part of the fourth rod, the end of the first rod away from the first column is rotatably connected to the end of the second rod away from the second column, and the end of the third rod away from the first slide is rotatably connected to the end of the fourth rod away from the second slide.

[0014] Based on the above technical solution, the rods in the first folding assembly are connected by a rotation, allowing the folding bicycle to be easily folded and unfolded. The user can achieve compact storage and quick deployment with simple operations. This design not only improves the folding bicycle's portability but also allows users to quickly adapt and use it in a variety of scenarios. The compact design of the first folding assembly also allows the folding bicycle to occupy a smaller space when folded.

[0015] A further improved solution: the second folding component includes a fifth rod rotatably set on the third column, a sixth rod rotatably set on the fourth column, a seventh rod rotatably set on the third slide and an eighth rod rotatably set on the fourth slide, the middle part of the fifth rod is rotatably connected to the middle part of the seventh rod, the middle part of the sixth rod is rotatably connected to the middle part of the eighth rod, the end of the fifth rod away from the third column is rotatably connected to the end of the sixth rod away from the fourth column, and the end of the seventh rod away from the third slide is rotatably connected to the end of the eighth rod away from the fourth slide.

[0016] Based on the above technical solution, the levers are connected by a rotating mechanism, allowing users to easily fold and unfold the folding scooter by adjusting the angle of the levers. This design not only improves the folding scooter's portability but also allows users to quickly fold or unfold it when needed. The folded scooter is smaller, making it easier to carry and store.

[0017] A further improved solution: the fifth folding component includes a seventeenth rod rotatably connected to the first column, an eighteenth rod rotatably connected to the second column, a nineteenth rod rotatably connected to the third column, a twentieth rod rotatably connected to the fourth column and a third connector, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are rotatably connected to the third connector, when the fifth folding component is in the unfolded state, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are all in a horizontal state, the third connector includes a positioning plate for positioning the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod in a horizontal state, a connecting portion is provided on the lower side of the positioning plate, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are all rotatably connected to the connecting portion.

[0018] Based on the above technical solution, since the rods in the fifth folding assembly are all connected by rotation, users can easily and quickly fold and unfold the folding bicycle. This design not only improves the portability of the folding bicycle, but also allows users to quickly operate it when needed, saving time and energy. The folded folding bicycle is smaller in size, making it easier to carry and store. The design of the fifth folding assembly allows the folding bicycle to occupy a smaller space when folded.

[0019] A further improved solution: wheels are provided at the lower ends of the first column, the second column, the third column and the fourth column.

[0020] Based on the above technical solution, four wheels give the folding scooter greater mobility. Whether on flat ground or slightly rough terrain, the folding scooter can be easily pushed or dragged, significantly reducing the user's physical exertion. A folding scooter with wheels is easier to carry and move. Users can easily move the folding scooter from one location to another by dragging or pushing it.

[0021] Further improved solution: a handle assembly is further provided on the rear column assembly.

[0022] Based on the above technical solution: the setting of the handle assembly allows the user to more intuitively control the moving direction of the folding bicycle, thereby improving the overall controllability.

[0023] A further improved solution: the handle assembly includes a handle body, and the handle body is installed on the rear column assembly through a connecting rod group.

[0024] Based on the above technical solution: the handle body can be easily installed on the rear column assembly through the connecting rod assembly, without complicated fixing or assembly processes. This design allows users to quickly install the handle assembly when needed, improving convenience.

[0025] A further improved solution: the connecting rod group includes a first connecting rod rotatably connected to the third column and a second connecting rod rotatably connected to the four columns, and the first connecting rod and the second connecting rod are both rotatably connected to the handle body.

[0026] Based on the above technical solution, the connecting rod assembly, through a rotating connection design, fits tightly against the main structure of the folding stroller when folded, reducing the space required for folding. This rotating connection design allows the connecting rod assembly to firmly support the handlebar when the folding stroller is unfolded, while allowing it to be compactly stowed away when folded, eliminating the need for additional space. This optimized layout not only improves the compactness of the folding stroller but also enhances its overall aesthetics.

[0027] The beneficial effects of the utility model are:

[0028] The third folding assembly in this utility model is composed of the ninth, tenth, eleventh, and twelfth rods, connected by a first connector to form a stable structure. This structure offers high mechanical stability, effectively resisting external impacts and deformation, thereby significantly improving the stability of the folding bicycle during travel. The third folding assembly in the side folding rod group is located between the second and third uprights. Through the rotational connection of the rods and the provision of a sliding seat, a secure connection is achieved between the front and rear uprights. This connection not only enhances the overall structural strength of the folding bicycle but also improves its stability in complex road conditions.

[0029] The rods in the third folding assembly are connected by a rotating mechanism, allowing the folding stroller to be easily folded and unfolded. This design not only improves the folding stroller's portability but also allows the user to quickly and conveniently fold or unfold it when needed. The sliding arrangement of the second slide on the second column and the sliding arrangement of the third slide on the third column provide a smooth sliding experience when folding and unfolding the folding stroller. This design reduces friction and resistance during folding, improving folding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For users of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 It is a schematic diagram of a folding bicycle of the present utility model.

[0032] Figure 2 It is a schematic diagram of the fifth folding assembly in a folding bicycle of the present invention.

[0033] Figure 3 It is a schematic diagram of a first direction of a third connector in a folding bicycle of the present invention.

[0034] Figure 4 It is a schematic diagram of the second direction of the third connector in a folding bicycle of the present invention.

[0035] Description of the numbers in the figure:

[0036] 1-first column; 11-first slide; 111-fifteenth rod; 112-third rod; 12-thirteenth rod; 13-first rod; 14-seventeenth rod; 2-second column; 21-second slide; 211-eleventh rod; 212-fourth rod; 22-ninth rod; 23-second rod; 24-eighteenth rod; 3-third column; 31-third slide; 311-twelfth rod; 312-seventh rod; 3 2-the tenth rod; 33-the first connector connection; 34-the fifth rod; 35-the nineteenth rod; 36-the first connecting rod; 4-the fourth column; 41-the fourth slide; 411-the sixteenth rod; 412-the eighth rod; 42-the fourteenth rod; 43-the sixth rod; 44-the twentieth rod; 45-the second connecting rod; 5-the third connector; 51-the positioning plate; 52-the connecting part; 6-the second connector; 7-the wheel; 8-the handle assembly. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by users of the present invention without creative work are within the scope of protection of the present invention.

[0038] refer to Figures 1 to 4 A folding bicycle comprises a front pillar assembly and a rear pillar assembly, wherein the front pillar assembly comprises a first pillar 1 and a second pillar 2, and the rear pillar assembly comprises a third pillar 3 and a fourth pillar 4;

[0039] A side folding rod assembly is provided between the front column assembly and the rear column assembly, and the side folding rod assembly includes a third folding assembly provided between the second column 2 and the third column 3, a second slide 21 is slidably provided on the second column 2, and a third slide 31 is provided on the third column 3;

[0040] The third folding assembly includes a ninth rod 22 rotatably connected to the second column 2, a tenth rod 32 rotatably connected to the third column 3, an eleventh rod 211 rotatably connected to the second slide 21, and a twelfth rod 311 rotatably connected to the third slide 31. An end of the ninth rod 22 away from the second column 2 and an end of the tenth rod 32 away from the third column 3 are connected via a first connector 33. The ninth rod 22 is rotatably connected to the first connector, and the tenth rod 32 is rotatably connected to the first connector. An end of the eleventh rod 211 away from the second slide 21 is rotatably connected to the middle part of the ninth rod 22, and an end of the twelfth rod 311 away from the third slide 31 is rotatably connected to the middle part of the tenth rod 32.

[0041] Wherein: the side folding rod group includes a fourth folding component arranged between the first column 1 and the fourth column 4, the first column 1 is provided with a first slide 11, the fourth column 4 is provided with a fourth slide 41, the fourth folding component includes a thirteenth rod 12 rotatably connected to the first column 1, a fourteenth rod 42 rotatably connected to the fourth column 4, a fifteenth rod 111 rotatably connected to the first slide 11 and a sixteenth rod 411 rotatably connected to the fourth slide 41, the The end of the thirteenth rod 12 away from the first column 1 is connected to the end of the fourteenth rod 42 away from the fourth column 4 through the second connector 6. The thirteenth rod 12 is rotatably connected to the second connector 6. The fourteenth rod 42 is rotatably connected to the second connector 6. The end of the fifteenth rod 111 away from the first slide 11 is rotatably connected to the middle of the thirteenth rod 12. The end of the sixteenth rod 411 away from the fourth slide 41 is rotatably connected to the middle of the fourteenth rod 42.

[0042] Wherein: a first folding assembly is provided between the first pillar 1 and the second pillar 2, a second folding assembly is provided between the third pillar 3 and the fourth pillar 4, and a fifth folding assembly is further provided between the front pillar assembly and the rear pillar assembly. The first folding assembly, the second folding assembly, the third folding assembly and the fourth folding assembly form the side walls of the folding bicycle, the fifth folding assembly forms the bottom wall of the folding bicycle, the fifth folding assembly folds from bottom to top, and when the fifth folding assembly is in the unfolded state, the first folding assembly, the second folding assembly, the third folding assembly and the fourth folding assembly are all locked in the unfolded state.

[0043] Specifically: the first folding component includes a first rod 13 rotatably set on the first column 1, a second rod 23 rotatably set on the second column 2, a third rod 112 rotatably set on the first slide 11 and a fourth rod 212 rotatably set on the second slide 21, the middle part of the first rod 13 is rotatably connected to the middle part of the third rod 112, the middle part of the second rod 23 is rotatably connected to the middle part of the fourth rod, the end of the first rod 13 away from the first column 1 is rotatably connected to the end of the second rod 23 away from the second column 2, and the end of the third rod 112 away from the first slide is rotatably connected to the end of the fourth rod 212 away from the second slide 21.

[0044] Wherein: the second folding assembly includes a fifth rod 34 rotatably set on the third column 3, a sixth rod 43 rotatably set on the fourth column 4, a seventh rod 312 rotatably set on the third slide 31 and an eighth rod 412 rotatably set on the fourth slide 41, the middle part of the fifth rod 34 is rotatably connected to the middle part of the seventh rod 312, the middle part of the sixth rod 43 is rotatably connected to the middle part of the eighth rod, the end of the fifth rod 34 away from the third column 3 is rotatably connected to the end of the sixth rod 43 away from the fourth column 4, and the end of the seventh rod 312 away from the third slide is rotatably connected to the end of the eighth rod 412 away from the fourth slide 41.

[0045] Specifically: the fifth folding component includes a seventeenth rod 14 rotatably connected to the first column 1, an eighteenth rod 24 rotatably connected to the second column 2, a nineteenth rod 35 rotatably connected to the third column 3, a twentieth rod 44 rotatably connected to the fourth column 4 and a third connector 5, the seventeenth rod 14, the eighteenth rod, the nineteenth rod 35 and the twentieth rod 44 are rotatably connected to the third connector 5, when the fifth folding component is in the unfolded state, the seventeenth rod 14, the eighteenth rod, the nineteenth rod 35 and the twentieth rod 44 are all in a horizontal state, the third connector 5 includes a positioning plate 51 for positioning the seventeenth rod 14, the eighteenth rod, the nineteenth rod 35 and the twentieth rod 44 in a horizontal state, and a connecting portion 52 is provided on the lower side of the positioning plate 51, the seventeenth rod 14, the eighteenth rod, the nineteenth rod 35 and the twentieth rod 44 are all rotatably connected to the connecting portion 52.

[0046] The first column 1, the second column 2, the third column 3, and the fourth column 4 are each provided with a wheel 7 at their lower ends. The wheels 7 can be mounted on different columns via wheel mounts. For example, the wheel 7 mounted on the first column 1 can be fixed to the first column 1 using screws.

[0047] Specifically, the rear column assembly is further provided with a handle assembly 8. The handle assembly 8 includes a handle body, which is mounted on the rear column assembly via a connecting rod assembly. The connecting rod assembly includes a first connecting rod 36 rotatably connected to the third column 3 and a second connecting rod 45 rotatably connected to the fourth column. Both the first connecting rod 36 and the second connecting rod are rotatably connected to the handle body.

[0048] Specifically, a groove can be provided on the first slide 11, and a rod rotatably connected to the first slide 11 can be rotatably connected to the groove via a rotating shaft. A groove can also be provided on the second slide 21, the third slide 31, and the fourth slide 41. The rods can be rotatably connected to each other via a rotating shaft.

[0049] The working principle of this embodiment is as follows:

[0050] When the user needs to fold the folding bicycle, the fifth folding assembly can be unlocked, and then the folding bicycle can be gradually folded into a compact shape by adjusting the angle and position of the rods. During the folding process, the connecting rod group allows the handle assembly 8 to be flexibly adjusted to adapt to the shape changes of the folding bicycle.

[0051] When the user needs to unfold the folding bicycle, they only need to follow the reverse order: first, adjust the angle and position of the rod to gradually unfold the folding bicycle into the riding position; then, lock the fifth folding assembly to ensure stability; and finally, adjust the angle and position of the handle assembly 8 to complete the unfolding of the folding bicycle.

[0052] The present invention is not limited to the above optional implementation methods. Under the premise of not conflicting with each other, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the scope of protection of the present invention.

Claims

1. A folding bicycle, characterized in that: It includes a front column assembly and a rear column assembly, wherein the front column assembly includes a first column and a second column, and the rear column assembly includes a third column and a fourth column; A side folding rod assembly is provided between the front column assembly and the rear column assembly, the side folding rod assembly includes a third folding assembly provided between the second column and the third column, a second slide is slidably provided on the second column, and a third slide is provided on the third column; The third folding assembly includes a ninth rod rotatably connected to the second column, a tenth rod rotatably connected to the third column, an eleventh rod rotatably connected to the second slide, and a twelfth rod rotatably connected to the third slide. An end of the ninth rod away from the second column and an end of the tenth rod away from the third column are connected via a first connector. The ninth rod is rotatably connected to the first connector. The tenth rod is rotatably connected to the first connector. An end of the eleventh rod away from the second slide is rotatably connected to the middle part of the ninth rod. An end of the twelfth rod away from the third slide is rotatably connected to the middle part of the tenth rod.

2. A folding bicycle according to claim 1, characterized in that: The side folding rod group includes a fourth folding assembly arranged between the first column and the fourth column, a first slide is provided on the first column, and a fourth slide is provided on the fourth column. The fourth folding assembly includes a thirteenth rod rotatably connected to the first column, a fourteenth rod rotatably connected to the fourth column, a fifteenth rod rotatably connected to the first slide, and a sixteenth rod rotatably connected to the fourth slide, an end of the thirteenth rod away from the first column and an end of the fourteenth rod away from the fourth column are connected through a second connector, the thirteenth rod is rotatably connected to the second connector, the fourteenth rod is rotatably connected to the second connector, an end of the fifteenth rod away from the first slide is rotatably connected to the middle part of the thirteenth rod, and an end of the sixteenth rod away from the fourth slide is rotatably connected to the middle part of the fourteenth rod.

3. A folding bicycle according to claim 2, characterized in that: A first folding assembly is provided between the first pillar and the second pillar, a second folding assembly is provided between the third pillar and the fourth pillar, and a fifth folding assembly is further provided between the front pillar assembly and the rear pillar assembly. The first folding assembly, the second folding assembly, the third folding assembly, and the fourth folding assembly form side walls of the folding bicycle, and the fifth folding assembly forms a bottom wall of the folding bicycle. The fifth folding assembly folds from bottom to top, and when the fifth folding assembly is in an unfolded state, it locks the first folding assembly, the second folding assembly, the third folding assembly, and the fourth folding assembly in the unfolded state.

4. A folding bicycle according to claim 3, characterized in that: The first folding assembly includes a first rod rotatably set on the first column, a second rod rotatably set on the second column, a third rod rotatably set on the first slide and a fourth rod rotatably set on the second slide, the middle part of the first rod is rotatably connected to the middle part of the third rod, the middle part of the second rod is rotatably connected to the middle part of the fourth rod, one end of the first rod away from the first column is rotatably connected to one end of the second rod away from the second column, and one end of the third rod away from the first slide is rotatably connected to one end of the fourth rod away from the second slide.

5. A folding bicycle according to claim 3, characterized in that: The second folding assembly includes a fifth rod rotatably set on the third column, a sixth rod rotatably set on the fourth column, a seventh rod rotatably set on the third slide and an eighth rod rotatably set on the fourth slide, the middle part of the fifth rod is rotatably connected to the middle part of the seventh rod, the middle part of the sixth rod is rotatably connected to the middle part of the eighth rod, one end of the fifth rod away from the third column is rotatably connected to one end of the sixth rod away from the fourth column, and one end of the seventh rod away from the third slide is rotatably connected to one end of the eighth rod away from the fourth slide.

6. A folding bicycle according to claim 3, characterized in that: The fifth folding component includes a seventeenth rod rotatably connected to the first column, an eighteenth rod rotatably connected to the second column, a nineteenth rod rotatably connected to the third column, a twentieth rod rotatably connected to the fourth column and a third connector, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are rotatably connected to the third connector, when the fifth folding component is in the unfolded state, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are all in a horizontal state, the third connector includes a positioning plate for positioning the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod in a horizontal state, a connecting portion is provided on the lower side of the positioning plate, the seventeenth rod, the eighteenth rod, the nineteenth rod and the twentieth rod are all rotatably connected to the connecting portion.

7. A folding bicycle according to claim 3, characterized in that: Wheels are provided at the lower ends of the first column, the second column, the third column and the fourth column.

8. The folding bicycle according to claim 2, characterized in that: The rear column assembly is also provided with a handle assembly.

9. A folding bicycle according to claim 8, characterized in that: The handle assembly comprises a handle body, and the handle body is mounted on the rear column assembly through a connecting rod group.

10. A folding bicycle according to claim 9, characterized in that: The connecting rod group includes a first connecting rod rotatably connected to the third column and a second connecting rod rotatably connected to the four columns. The first connecting rod and the second connecting rod are both rotatably connected to the handle body.

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