Damping bicycle with adjustable handlebar and saddle

Abstract

The utility model relates to a damping bicycle with an adjustable handlebar and an adjustable saddle, which comprises a head tube, a front fork, a handlebar vertical tube, a handlebar component, an upper tube, a lower tube, a vertical tube, a rear upper fork, a rear lower fork, a front wheel set and a rear wheel set, and the handlebar vertical tube is inserted into the head tube. A connecting arm is arranged on the head pipe, the tail end of the upper pipe is fixedly connected with the vertical pipe, an upper notch and a lower notch are formed in the peripheral wall of the head end of the upper pipe, and the connecting arm is inserted into the upper notch and the lower notch and can slide and be fixed relative to the upper notch and the lower notch. The bottom end of the vertical pipe is fixedly connected with a middle shaft sleeve, a lower pipe is erected between the middle shaft sleeve and the head pipe, and the head end of the lower pipe is hinged to the head pipe. And a saddle assembly which is provided with a saddle and can transversely move and be fixed is inserted into the top of the vertical pipe. The middle shaft sleeve is rotatably connected with the head end of the rear lower fork. The tail ends of the rear upper fork and the rear lower fork converge and are connected with a rear fork piece, and a damping spring is arranged between the head end of the rear upper fork and the vertical pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a shock-absorbing bicycle with adjustable handlebars and saddle. Background Art

[0002] At present, with the development of modernization, people's awareness of health and green life is constantly increasing, so bicycles have gradually become the simplest, most practical and most widely used means of transportation in the world. At the same time, bicycle technology is also constantly maturing and innovating.

[0003] The seat and handlebars of existing bicycles can generally be adjusted in height, but the distance between the seat and the handlebars remains unchanged. Due to different conditions such as people's height and arm length, this type of bicycle can only be used by people with suitable conditions, so it is limited in application, which brings a lot of inconvenience to users. Utility Model Content

[0004] The utility model provides a shock-absorbing bicycle with a simple and reasonable structural design, easy operation, and adjustable handlebars and saddle in order to solve the technical problems existing in the known technology.

[0005] The utility model adopts a technical solution to solve the technical problems existing in the known technology: a shock-absorbing bicycle with adjustable handlebars and saddle, comprising a head tube, a front fork, a handlebar stem, a handlebar assembly, an upper tube, a lower tube, a stem, a rear upper fork, a rear lower fork, a front wheel group and a rear wheel group, wherein the handlebar stem is inserted into the head tube, and the bottom end of the handlebar stem is fixedly connected to the front fork, and the top end is sleeved with the handlebar assembly; a connecting arm is provided on the outer peripheral wall of the head tube, the tail end of the upper tube is fixedly connected to the middle and upper part of the stem, and an upper notch and a lower notch are opened on the outer peripheral wall of the head end, and the connecting arm is inserted into the upper notch and the lower notch and can slide and be fixed relative to the upper and lower notches; A middle shaft sleeve is fixedly connected to the bottom end of the tube, a down tube is arranged between the middle shaft sleeve and the head tube, the head end of the down tube is hinged to the head tube, and the tail end is fixed to the middle shaft sleeve; a saddle assembly with a saddle that can move and fix laterally is inserted on the top of the seat tube; a rear fork connecting plate with an axial hole is welded and fixed to both ends of the middle shaft sleeve, a rear fork rotating shaft is arranged between the two axial holes, and the outer peripheral wall of the rear fork rotating shaft is fixed to the head end of the rear lower fork; the tail ends of the upper fork and the lower fork converge and are connected with a rear fork sheet, and a shock-absorbing spring is arranged between the head end of the upper fork and the seat tube; it also includes a front wheel group arranged between the front forks and a rear wheel group arranged between the two rear fork sheets.

[0006] Preferably: the connecting arm is provided with a plurality of first positioning holes, and also includes a first fastener which transversely penetrates the outer peripheral wall of the upper tube and the first positioning holes, and the fastener can fix the connecting arm and the upper tube in a relatively fixed position, and can also be released from the fixed position.

[0007] Preferably, the first fastener includes a bolt and a locking nut which transversely penetrate the outer peripheral wall of the upper tube and the first positioning hole.

[0008] Preferably: a first ear plate with an axial hole is welded and fixedly connected to the outer peripheral wall of the head pipe, and a second fastener is arranged in the axial hole; a side ear is fixedly connected to the head end of the down tube, and the first ear plate and the side ear are connected by the second fastener.

[0009] Preferably, the second fastener is a quick-release structure, which can fix the first ear plate and the side ear in a relatively fixed position and can also be released from the fixed position.

[0010] Preferably: the saddle assembly includes a seat tube whose bottom end is inserted into the vertical tube and the top end is fixedly connected to a saddle slide bar; the saddle slide bar is arranged horizontally, and a U-shaped seat with a downward opening is sleeved on the outer surface of the saddle slide bar; a saddle is arranged on the top of the U-shaped seat; and it also includes a third fastener passing through the cross section of the saddle slide bar and the U-shaped seat, and the third fastener can fix the saddle slide bar and the U-shaped seat in a relatively fixed position, and can also be released from the fixed position.

[0011] Preferably: a plurality of groups of second positioning through holes are provided on the side wall of the saddle slide bar, and a sliding through groove is provided between two adjacent second positioning through holes; the third fastener is a quick-release structure, the quick-release structure comprises a pull rod passing through the cross section of the U-shaped seat and the second positioning through holes and extending out of the outer sides of the walls of the U-shaped seat; one end of the pull rod is provided with a buffer pad and is hingedly connected to a wrench with a cam, and the other end of the pull rod is threaded and screwed with a positioning nut.

[0012] Preferably: a second ear plate with an axial hole is welded and fixedly connected to the outer peripheral wall of the upper middle part of the seat tube, a third ear plate with an axial hole is fixedly connected to the head end of the rear seat fork, and the shock absorbing spring is arranged between the axial holes of the two ear plates.

[0013] Preferably, an upper tube support tube is mounted and fixedly connected to the middle and lower part of the vertical tube and the middle and front part of the upper tube.

[0014] Preferably, a slot is provided on the top side wall of the seat tube along its axial direction and a seat tube fastener is provided, and the seat tube is fixedly connected to the seat tube via the seat tube fastener.

[0015] The advantages and positive effects of the utility model are as follows: the utility model provides a shock-absorbing bicycle with adjustable handlebars and saddles. Compared with existing bicycles, the first fastener is used to adjust the connecting arm to slide in the upper notch and the lower notch, thereby adjusting the angle of the handlebar riser; by adjusting the position of the third fastener in the second positioning through hole on the saddle slide bar, the position of the U-shaped seat on the saddle slide bar can be adjusted, thereby adjusting the front and rear position of the saddle; the setting of the sliding through groove allows the pull rod to move between the two second positioning through holes without pulling out the pull rod of the third fastener when adjusting the saddle position. Through the above settings, the distance between the handlebar and the saddle of the bicycle can be adjusted to meet the requirements of different riders. The setting of the shock-absorbing spring reduces the damage caused to the rider and the bicycle when the bicycle is traveling on bumpy roads, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the preferred main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of a preferred main view partial cross-sectional structure of the utility model;

[0018] Figure 3 yes Figure 2 A magnified schematic diagram of the middle A area;

[0019] Figure 4 It is a left sectional view of the connection state between the U-shaped seat and the saddle slide bar when the saddle is fixed in a horizontal position;

[0020] Figure 5 It is a left sectional view of the connection state between the U-shaped seat and the saddle slide bar when the horizontal position of the saddle is adjustable.

[0021] In the figure: 11, head tube; 111, first ear plate; 12, handlebar stem; 13, front fork; 14, handlebar assembly; 15, front wheel assembly; 16, connecting arm; 161, first positioning hole; 162, first fastener; 21, upper tube; 211, upper notch; 212, lower notch; 22, lower tube; 221, side ear; 23, stem; 231, second ear plate; 24, upper tube support tube; 25, seat tube fastener; 26, seat tube; 27, saddle slide bar; 2 71. second positioning through hole; 272. sliding through groove; 28. U-shaped seat; 29. ​​saddle; 30. middle shaft sleeve; 31. rear fork connecting plate; 311. rear fork rotating shaft; 32. rear lower fork; 33. rear upper fork; 331. third ear plate; 34. rear fork plate; 35. rear wheel assembly; 40. shock absorbing spring; 51. second fastener; 52. third fastener; 521. wrench; 522. cam; 523. buffer pad; 524. pull rod; 525. positioning nut. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0023] See also Figures 1 to 5 The utility model comprises a head tube 11, a front fork 13, a handlebar stem 12, a handlebar assembly 14, an upper tube 21, a lower tube 22, a stem 23, a rear seat fork 33, a rear chain fork 32, a front wheel assembly 15 and a rear wheel assembly 35. The handlebar stem 12 is inserted into the head tube 11, and the front fork 13 is fixedly connected to the bottom end of the handlebar stem 12, and the handlebar assembly 14 is sleeved on the top end. See further Figure 2 A connecting arm 16 is provided on the outer peripheral wall of the head tube 11. The tail end of the upper tube 21 is fixedly connected to the middle and upper part of the seat tube 23, and an upper notch 211 and a lower notch 212 are provided on the outer peripheral wall of the head end. The connecting arm 16 is inserted into the upper notch 211 and the lower notch 212 and can slide and be fixed relative to the upper and lower notches. The bottom end of the seat tube 23 is fixedly connected to the middle shaft sleeve 30, and the lower tube 22 is arranged between the middle shaft sleeve 30 and the head tube 11. The head end of the lower tube 22 is hinged to the head tube 11, and the tail end is fixed to the middle shaft sleeve 30. A saddle assembly with a saddle 29 is inserted on the top of the seat tube 23, and the saddle 29 can be moved and fixed laterally. A rear fork connecting plate 31 with an axial hole is welded and fixedly connected at both ends of the middle sleeve 30, a rear fork rotating shaft 311 is arranged between the two axial holes, and the outer peripheral wall of the rear fork rotating shaft 311 is fixedly connected to the head end of the rear lower fork 32. The rear upper fork 33 and the rear lower fork 32 converge at their tail ends and are connected to a rear fork sheet 34, and a shock absorbing spring 40 is arranged between the head end of the rear upper fork 33 and the seat tube 23. The front wheel group 15 arranged between the front forks 13 and the rear wheel group 35 arranged between the two rear fork sheets 34 are also included.

[0024] like Figure 1 and Figure 2 As shown, a plurality of first positioning holes 161 are provided on the connecting arm 16, and a first fastener 162 is also provided which transversely passes through the outer wall of the upper tube 21 and the first positioning holes 161. The fastener can fix the connecting arm 16 and the upper tube 21 in a relatively fixed position and can also be released from the fixed position.

[0025] The first fastener 162 includes a bolt and a locking nut that transversely penetrate the outer peripheral wall of the upper tube 21 and the first positioning hole 161 .

[0026] A first ear plate 111 with an axial hole is welded and fixedly connected to the outer peripheral wall of the head pipe 11, and a second fastener 51 is arranged in the axial hole. A side ear 221 is fixedly connected to the head end of the down tube 22, and the first ear plate 111 and the side ear 221 are connected by the second fastener 51.

[0027] In order to facilitate the adjustment of the angle of the handlebar stem 12 , the second fastener 51 is a quick-release structure, which can fix the first ear plate 111 and the side ear 221 in a relatively fixed position and can also be released from this fixed position.

[0028] When the angle of the handlebar stem 12 needs to be adjusted, the bolts and nuts of the first fastener 162 need to be unscrewed first, and the second fastener 51 needs to be turned so that the first ear plate 111 and the side ear 221 are in a loose fit and can move relative to each other; then the connecting arm 16 is adjusted to slide in the upper notch 211 and the lower notch 212, thereby adjusting the angle of the handlebar stem 12; when it is adjusted to a suitable position, the second fastener 51 is turned so that the first ear plate 111 and the side ear 221 are fixedly connected and cannot move relative to each other, and the connecting arm 16 and the upper tube 21 are fixedly connected by the bolts and nuts of the first fastener 162.

[0029] like Figure 1 As shown, the saddle assembly includes a seat tube 26 whose bottom end is inserted into the vertical tube 23 and whose top end is fixedly connected to a saddle slide bar 27. The saddle slide bar 27 is arranged horizontally, and a U-shaped seat 28 with an opening downward is sleeved on the outer surface of the saddle slide bar 27. A saddle 29 is arranged on the top of the U-shaped seat 28. A third fastener 52 is also included that passes through the cross section of the saddle slide bar 27 and the U-shaped seat 28. The third fastener 52 can fix the saddle slide bar 27 and the U-shaped seat 28 in a relatively fixed position and can also be released from the fixed position.

[0030] See also Figures 3 to 5 , multiple groups of second positioning through holes 271 are provided on the side wall of the saddle slide bar 27, and a sliding through slot 272 is provided between two adjacent second positioning through holes 271. The third fastener 52 is a quick-release structure, which includes a pull rod 524 that passes through the cross section of the U-shaped seat 28 and the second positioning through holes 271 and passes through the outer sides of the two side walls of the U-shaped seat 28. One end of the pull rod 524 is sleeved with a buffer pad 523 and is hinged with a wrench 521 with a cam 522, and the other end of the pull rod 524 is threaded and screwed with a positioning nut 525.

[0031] When the front-rear position of the saddle 29 needs to be adjusted, the wrench 521 of the third fastener 52 is simply turned to release the compression state between the cam 522 and the positioning nut 525 of the third fastener 52 and the two side walls of the U-shaped seat 28, and the third fastener 52 and the U-shaped seat 28 are lifted upward to disengage the pull rod 524 of the third fastener 52 from the second positioning through hole 271 and slide into the sliding through groove 272 (such as Figure 5 As shown), the U-shaped seat 28 and the third fastener 52 are further moved laterally, so that the pull rod 524 slides in the sliding groove 272. When the pull rod 524 of the third fastener 52 is adjusted to a suitable position, the pull rod 524 of the third fastener 52 is moved into a second positioning hole 271 (as shown in FIG. Figure 4As shown), the wrench 521 of the third fastener 52 is turned, so that the cam 522, the buffer pad 523 and the positioning nut 525 press the two side walls of the U-shaped seat 28, thereby fixing the U-shaped seat 28 and the saddle slide bar 27.

[0032] A second ear plate 231 with an axial hole is welded and fixedly connected to the outer peripheral wall of the upper middle part of the seat tube 23, and a third ear plate 331 with an axial hole is fixedly connected to the head end of the rear seat fork 33. The shock-absorbing spring 40 is arranged between the axial holes of the two ear plates. The arrangement of the shock-absorbing spring 40 reduces the damage to the rider and the bicycle when the bicycle is running on a bumpy road, thereby improving safety.

[0033] In order to increase the stability of the vehicle body, an upper tube support tube 24 is fixedly mounted between the middle and lower part of the seat tube 23 and the middle and front part of the upper tube 21 .

[0034] In order to facilitate the adjustment of the height of the saddle 29 , a slot is provided on the top side wall of the seat tube 23 along its axial direction and a seat tube fastener 25 is provided. The seat tube 26 is fixedly connected to the seat tube 23 via the seat tube fastener 25 .

Claims

1. A shock-absorbing bicycle with adjustable handlebars and saddle, comprising a head tube (11), a front fork (13), a handlebar stem (12), a handlebar assembly (14), an upper tube (21), a down tube (22), a stem tube (23), a rear upper fork (33), a rear lower fork (32), a front wheel assembly (15) and a rear wheel assembly (35), wherein: The handlebar stem (12) is inserted into the head tube (11), and the bottom end of the handlebar stem (12) is fixedly connected to a front fork (13), and the top end is sleeved with a handlebar assembly (14); a connecting arm (16) is provided on the outer peripheral wall of the head tube (11); the tail end of the upper tube (21) is fixedly connected to the middle and upper part of the stem tube (23), and an upper notch (211) and a lower notch (212) are opened on the outer peripheral wall of the head end; the connecting arm (16) is inserted into the upper notch (211) and the lower notch (212) and can slide and be fixed relative to the upper and lower notches; the bottom end of the stem tube (23) is fixedly connected to a middle shaft sleeve (30), and a lower tube (22) is arranged between the middle shaft sleeve (30) and the head tube (11), and the head end of the lower tube (22) is hinged to the head tube (11). The rear end is fixedly connected to the middle shaft sleeve (30); a saddle assembly with a saddle (29) is inserted on the top of the seat tube (23), and the saddle (29) can be laterally moved and fixed; a rear fork connecting plate (31) with an axial hole is welded and fixedly connected to both ends of the middle shaft sleeve (30), a rear fork rotating shaft (311) is arranged between the two axial holes, and the outer peripheral wall of the rear fork rotating shaft (311) is fixedly connected to the head end of the rear lower fork (32); the rear ends of the upper fork (33) and the rear lower fork (32) converge and are connected to a rear fork plate (34), and a shock absorbing spring (40) is arranged between the head end of the upper fork (33) and the seat tube (23); and it also includes a front wheel group (15) arranged between the front forks (13) and a rear wheel group (35) arranged between the two rear fork plates (34).

2. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 1, characterized in that: The connecting arm (16) is provided with a plurality of first positioning holes (161), and also includes a first fastener (162) which transversely penetrates the outer peripheral wall of the upper tube (21) and the first positioning holes (161). The fastener can fix the connecting arm (16) and the upper tube (21) in a relatively fixed position and can also be released from the fixed position.

3. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 2, characterized in that: The first fastener (162) comprises a bolt and a locking nut which transversely penetrate the outer peripheral wall of the upper tube (21) and the first positioning hole (161).

4. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 1, characterized in that: A first ear plate (111) with an axial hole is welded and fixedly connected to the outer peripheral wall of the head tube (11), and a second fastener (51) is arranged in the axial hole; a side ear (221) is fixedly connected to the head end of the lower tube (22), and the first ear plate (111) and the side ear (221) are connected via the second fastener (51).

5. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 4, characterized in that: The second fastener (51) is a quick-release structure, which can fix the first ear plate (111) and the side ear (221) in a relatively fixed position and can also be released from the fixed position.

6. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 1, characterized in that: The saddle assembly comprises a seat tube (26) whose bottom end is inserted into a stand tube (23) and whose top end is fixedly connected to a saddle slide bar (27); the saddle slide bar (27) is arranged transversely, and a U-shaped seat (28) with an opening facing downward is sleeved on the outer surface of the saddle slide bar (27); a saddle (29) is arranged on the top of the U-shaped seat (28); and a third fastener (52) passing through the cross section of the saddle slide bar (27) and the U-shaped seat (28), wherein the third fastener (52) can fix the saddle slide bar (27) and the U-shaped seat (28) in a relatively fixed position and can also be released from the fixed position.

7. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 6, characterized in that: A plurality of groups of second positioning through holes (271) are provided on the side wall of the saddle slide bar (27), and a sliding through groove (272) is provided between two adjacent second positioning through holes (271); the third fastener (52) is a quick-release structure, which includes a pull rod (524) passing through the cross section of the U-shaped seat (28) and the second positioning through holes (271) and extending outward from the outer sides of the two side walls of the U-shaped seat (28); one end of the pull rod (524) is sleeved with a buffer pad (523) and is hingedly connected to a wrench (521) with a cam (522), and the other end of the pull rod (524) is threaded and is screwed with a positioning nut (525).

8. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 1, characterized in that: A second ear plate (231) with an axial hole is welded and fixedly connected to the outer peripheral wall of the upper middle part of the seat tube (23), and a third ear plate (331) with an axial hole is fixedly connected to the head end of the rear seat fork (33), and the shock absorbing spring (40) is arranged between the axial holes of the two ear plates.

9. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 1, characterized in that: An upper tube support tube (24) is fixedly mounted on the middle and lower part of the vertical tube (23) and the middle and front part of the upper tube (21).

10. The shock-absorbing bicycle with adjustable handlebars and saddle as claimed in claim 6, characterized in that: A slot is provided on the top side wall of the stand pipe (23) along its axial direction and a seat pipe fastener (25) is provided, and the seat pipe (26) is fixedly connected to the stand pipe (23) via the seat pipe fastener (25).

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