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CN-122009368-A - Frame group for bicycle, bicycle component and bicycle

CN122009368ACN 122009368 ACN122009368 ACN 122009368ACN-122009368-A

Abstract

The application provides a frame group for a bicycle, a bicycle assembly and a bicycle, wherein the frame group comprises a lower tube, a rear lower fork, a vertical tube and a supporting tube, the rear lower fork comprises a connecting part and two fork parts, the rear end of the connecting part is connected with the front ends of the two fork parts, the front end of the connecting part is connected with the bottom of the lower tube, the vertical tube is arranged between the rear lower fork and the lower tube, the vertical tube is bent to obtain a first tube part and a second tube part which are encircled to form a second obtuse angle structure, the first tube part is connected with the part of the lower tube adjacent to the connecting part, the second tube part is obliquely arranged upwards and backwards relative to the connecting part, the first tube part, the second tube part and the lower tube are encircled to form an avoidance cavity, and the supporting tube is connected with the first tube part and the connecting part, so that the three form a triangle structure or a triangle-like structure. The bicycle frame group is beneficial to improving the loading stability of the vertical pipe, and has the advantage of obviously reducing the obstruction of the foot-crossing process of a user, so that the bicycle with the bicycle frame group has the advantage of convenient loading and unloading.

Inventors

  • HUANG HE
  • PENG TAO
  • ZHOU YUHANG
  • LUO KUN

Assignees

  • 深圳市十方运动科技有限公司

Dates

Publication Date
20260512
Application Date
20260319

Claims (15)

  1. 1. The frame group for the bicycle comprises a lower tube, a rear lower fork and a vertical tube, and is characterized in that the frame group is defined to be in a use state when being installed on an upright wheel, the rear lower fork is transversely arranged in the use state, the lower tube is obliquely arranged upwards and forwards relative to the rear lower fork so as to form a first obtuse angle structure together, the rear lower fork comprises a connecting part and two fork parts with opposite intervals, the rear ends of the connecting parts are connected with the front ends of the two fork parts so as to form a rear wheel accommodating cavity together, and the front ends of the connecting parts are connected with the bottom of the lower tube; The vertical pipe is arranged between the rear lower fork and the lower pipe, the vertical pipe is bent to obtain a first pipe part and a second pipe part which are encircled to form a second obtuse angle structure, an opening of the second obtuse angle structure faces to the lower pipe, the first pipe part is connected to a part of the lower pipe adjacent to the connecting part, the second pipe part is obliquely arranged upwards and backwards relative to the connecting part, an avoidance cavity is formed by encircling the first pipe part, the second pipe part and the lower pipe, the avoidance cavity is provided with an opening deviating from the rear lower fork, the avoidance cavity is used for a user to straddle a foot between the left side and the right side of the frame group, and accordingly boarding and disembarking are realized, and the second pipe part is used for installing a seat cushion; The frame group further comprises a support tube, wherein the support tube is connected with the first tube part and the connecting part, so that the support tube, the first tube part and the connecting part form a triangle structure or a triangle-like structure.
  2. 2. The vehicle frame set of claim 1, wherein the support tube and the connecting portion are disposed at an acute angle as viewed from the fork toward the connecting portion.
  3. 3. The vehicle frame set according to claim 1 or 2, wherein the first pipe portion includes a first arc-shaped pipe body and a first flat-plate pipe body that are circumferentially connected to form a pipe cavity, the first arc-shaped pipe body is transversely curved toward the avoiding cavity as viewed in a pipe diameter direction of the first pipe portion, the first flat-plate pipe body is disposed toward the connecting portion, and the support pipe is connected to the first flat-plate pipe body.
  4. 4. The vehicle frame set of claim 3, wherein the second tube portion includes a second arcuate tube and a second flat tube that enclose a tube cavity, the second arcuate tube being bowed laterally toward the relief cavity as viewed in a tube diameter direction of the second tube portion, the second flat tube being disposed away from the lower tube, the first arcuate tube and the second arcuate tube being contiguous, the second flat tube and the first flat tube being contiguous.
  5. 5. The vehicle frame set of claim 3, wherein the support tube includes a third arcuate tube and a third flat tube that enclose a lumen, the third arcuate tube being bowed laterally toward the first flat tube as viewed in a tube diameter direction of the support tube, the third flat tube being disposed away from the lower tube.
  6. 6. The vehicle frame set of claim 5, wherein the third arced tube is bent at an obtuse angle, the bent portion being disposed adjacent the first tube portion such that the support tube, the first tube portion and the connecting portion form a triangle-like structure.
  7. 7. The vehicle frame set of claim 1, further comprising: The fluted disc mount pad is connected in the bottom of down pipe, the fluted disc mount pad is used for installing the fluted disc of bicycle, the fluted disc mount pad with down pipe forms the second obtuse angle structure, connecting portion bear in the fluted disc mount pad, the stay tube still connect in the fluted disc mount pad.
  8. 8. A bicycle component, characterized in that it comprises a frame set according to any one of claims 1 to 7, said bicycle component further comprising: the rear clothes rack is connected with the two fork parts and comprises a carrying seat, and the carrying seat is arranged on one side of the rear wheel accommodating cavity, which is close to the vertical pipe; A rear fender arranged at one side of the carrier seat opposite to the rear lower fork, the rear fender bending toward the carrier seat, the rear fender for shielding part of the rear wheel of the bicycle, the rear fender connected to the rear hanger or the frame group, and The buffer rod is connected to the frame group, the buffer rod butt in the crooked interior terminal surface of back fender, the buffer rod bow to the crooked setting of back fender, the projection of buffer rod is arranged in outside the carrying seat, the buffer rod is used for carrying the thing seat to receive external force drive to descend to trigger to press when back fender can produce recoverable deformation in order to provide holding power.
  9. 9. The bicycle component according to claim 8, wherein the curved inner end surface of the buffer rod is recessed to form a first recess, the left and right end surfaces of the buffer rod are each recessed to form a second recess as viewed from the first recess, the first recess and the second recess each extend along the curved direction of the buffer rod such that the first recess and the second recess each are exposed at both extending ends of the buffer rod, the first recess having left and right outer edges as viewed from the groove depth direction of the first recess, and the second recess having left and right outer edges as viewed from the groove depth direction of the second recess.
  10. 10. The bicycle component according to claim 8, wherein the rear hanger further comprises: The touch strip is arranged on the rear fender in a protruding mode and used for being pressed when the rear fender is driven by external force to descend by the carrier seat, the touch strip comprises an arc-shaped portion and a straight strip portion, the arc-shaped portion is connected between the straight strip portion and the carrier seat, the straight strip portion extends along the tangential direction of the outer bending end face of the rear fender, and the inner bending end face of the arc-shaped portion faces or deviates from the vertical pipe.
  11. 11. The bicycle component according to claim 8, wherein the rear hanger further comprises two support brackets, each of the support brackets being coupled between one of the fork and the carrier, the support brackets comprising a first hanger bar, a second hanger bar and a third hanger bar; The first rack comprises a first rack part and a second rack part which are connected to form a third obtuse angle structure, an opening of the third obtuse angle structure faces the vertical pipe, an extending end of the first rack part is connected with the carrying seat, an extending end of the second rack part is connected with the fork part, the second rack part is connected with the third rack part in a triangular structure, the second rack part and the third rack part are located on one side, deviating from the vertical pipe, of the second rack part, and the second rack part is borne on the fork part.
  12. 12. The bicycle component according to claim 11, wherein the support bracket further comprises: A fourth frame bar comprising a third bar part and a fourth bar part which are connected to form a fourth obtuse angle structure, wherein the opening of the fourth obtuse angle structure is arranged away from the vertical pipe, the vertex of the fourth obtuse angle structure is higher than the vertex of the third obtuse angle structure when being observed from the fork part to the carrying seat, the extension end of the third bar part is connected with the carrying seat, the extension end of the fourth bar part is connected with the second bar part, and And a fifth rack bar connected between the first bar portion and the third bar portion.
  13. 13. A bicycle, characterized in that it comprises a frame set according to any one of claims 1 to 7.
  14. 14. A bicycle, characterized in that it comprises a bicycle component according to any one of claims 8 to 14.
  15. 15. The bicycle of claim 14, wherein the bicycle is an electric bicycle, the end surface of the lower tube facing away from the avoidance cavity is recessed to form a battery accommodating groove, the bicycle further comprises a battery cover, the battery cover is clamped in the battery accommodating groove and surrounds the battery accommodating groove to form a battery accommodating cavity, the battery accommodating cavity is used for installing a battery assembly for supplying power to a driving motor, and an opening groove is formed in the edge of the battery cover and used for a user to buckle and detach the battery cover.

Description

Frame group for bicycle, bicycle component and bicycle Technical Field The invention relates to the technical field of bicycle arrangement, in particular to a frame set for a bicycle, a bicycle component and a bicycle. Background In order to ensure stability, a stand pipe which is obliquely arranged and extends in one direction is convexly arranged at the joint of a lower pipe which is obliquely arranged and a transverse rear lower fork of a conventional bicycle frame group, a plurality of upper pipes are connected between the lower pipe and the stand pipe, and at least one upper pipe is connected with the top end of the lower pipe (a position close to a handle) and the top end of the stand pipe (a position close to a seat cushion), so that a user is difficult to get on or off the bicycle. Disclosure of Invention In order to overcome the defects in the prior art, the invention aims to provide a frame set for a bicycle, which is beneficial to improving the load stability of a vertical pipe and has the advantage of obviously reducing the obstruction to the foot-crossing process of a user, so that the bicycle with the frame set has the advantage of convenient loading and unloading. In order to solve the problems, the technical scheme adopted by the invention is as follows: The frame group for the bicycle comprises a lower tube, a rear lower fork and a vertical tube, wherein the state of the frame group when being installed on an upright wheel is defined as a use state, the rear lower fork is transversely arranged in the use state, the lower tube is obliquely arranged upwards and forwards relative to the rear lower fork so as to form a first obtuse angle structure together, the rear lower fork comprises a connecting part and two fork parts with opposite intervals, the rear end of the connecting part is connected with the front ends of the two fork parts so as to form a rear wheel accommodating cavity together, and the front end of the connecting part is connected with the bottom of the lower tube; The vertical pipe is arranged between the rear lower fork and the lower pipe, the vertical pipe is bent to obtain a first pipe part and a second pipe part which are encircled to form a second obtuse angle structure, an opening of the second obtuse angle structure faces to the lower pipe, the first pipe part is connected to a part of the lower pipe adjacent to the connecting part, the second pipe part is obliquely arranged upwards and backwards relative to the connecting part, an avoidance cavity is formed by encircling the first pipe part, the second pipe part and the lower pipe, the avoidance cavity is provided with an opening deviating from the rear lower fork, the avoidance cavity is used for a user to straddle a foot between the left side and the right side of the frame group, and accordingly boarding and disembarking are realized, and the second pipe part is used for installing a seat cushion; The frame group further comprises a support tube, wherein the support tube is connected with the first tube part and the connecting part, so that the support tube, the first tube part and the connecting part form a triangle structure or a triangle-like structure. In some possible embodiments, the support tube and the connection portion are disposed at an acute angle as viewed from the fork portion toward the connection portion. In some possible embodiments, the first pipe portion includes a first arc-shaped pipe body and a first flat pipe body that are connected in a surrounding manner to form a pipe cavity, and viewed along the pipe diameter direction of the first pipe portion, the first arc-shaped pipe body is arched towards the avoidance cavity and is transversely bent, the first flat pipe body is arranged towards the connecting portion, and the support pipe is connected to the first flat pipe body. In some possible embodiments, the second pipe portion includes a second arc-shaped pipe body and a second flat pipe body that are connected in a surrounding manner to form a pipe cavity, and viewed along a pipe diameter direction of the second pipe portion, the second arc-shaped pipe body is bent transversely toward the avoidance cavity, the second flat pipe body is arranged away from the lower pipe, the first arc-shaped pipe body is adjacent to the second arc-shaped pipe body, and the second flat pipe body is adjacent to the first flat pipe body. In some possible embodiments, the support tube includes a third arcuate tube body and a third flat tube body that enclose a lumen, the third arcuate tube body being disposed with a lateral curvature toward the first flat tube body, and the third flat tube body being disposed away from the lower tube, as viewed along a tube diameter direction of the support tube. In some possible embodiments, the third arced tube body is bent at an obtuse angle, and the bent portion is disposed adjacent to the first tube portion, such that the support tube, the first tube portion, and the connection