Device for adjusting front and back of handlebar

Abstract

The utility model discloses a device for adjusting the front and back of a steering handle, which comprises the steering handle, a steering column welding assembly and a connecting vertical pipe, and the connecting vertical pipe is connected between the steering handle and the steering column welding assembly; a left steering handle upper mounting seat and a right steering handle upper mounting seat are arranged on the steering handle, the left steering handle upper mounting seat and the right steering handle upper mounting seat are respectively connected with the connecting vertical pipe through upper fixing bolts, and the steering handle is clamped between the upper end of the connecting vertical pipe and the left steering handle upper mounting seat and the right steering handle upper mounting seat. The utility model provides a device for adjusting the relative distance between a steering handle and the center of a seat cushion, which is suitable for different use groups and meets the riding triangle of groups with different heights, and improves the riding comfort.

Description

Technical Field

[0001] The utility model relates to the technical field of front and rear adjustment of motorcycle handlebars. More specifically, it relates to a device for adjusting the front and rear of handlebars. Background Art

[0002] The heights of the users of bicycles and motorcycles are different, and the relative distance between the handlebar and the center of the seat needs to be adjusted appropriately. Generally, the existing method is to adjust by moving the lower end of the seat up and down in the riser tube, and the adjustment range is very limited.

[0003] The utility model patent with the application number 201520325493.6 applied by the State Intellectual Property Office discloses a children's tricycle, which includes a frame and a seat. The frame includes a frame cross beam. The front end of the frame cross beam is connected with a front fork. The top of the front fork is provided with a handlebar, the bottom of the front fork is provided with a front steering wheel, and a footrest is installed on the front steering wheel. The end of the frame cross beam is connected with two inclined support rods in a plug-in connection through a three-way joint. The ends of the two inclined support rods are connected with a rear wheel axle through a plug-in part. Rear wheels are installed at both ends of the rear wheel axle. A hand push rod is sleeved in the three-way joint. The bottom of the hand push rod is connected to the front fork through a steering rod. A hand push handle is installed at the top of the hand push rod. A seat mounting seat is installed on the upper part of the frame cross beam. A plurality of groups of plug holes are arranged on the seat mounting seat from front to back. The bottom of the seat is provided with plug joints corresponding to the plug holes. The seat is installed on the seat mounting seat through the plug holes and the plug joints; this new type is convenient for adjusting the distance and direction between the seat and the handlebar, and there is no welded connection in the whole vehicle. This application inserts the seat into different front and rear plug holes through the plug joints to adjust the distance between the seat and the handlebar to be suitable for children of different heights to ride and use, realizing the adjustment of the distance between the seat and the handlebar, with a very complex structure and occupying a large amount of space. Summary of the Invention

[0004] The purpose of the utility model is to provide a device for adjusting the front and rear of a handlebar, which can adapt to different user groups, meet the riding triangles of user groups of different heights, and improve the riding comfort.

[0005] A device for adjusting the front and rear of a handlebar includes a handlebar, a steering column welding assembly, and a connecting riser tube. The connecting riser tube is connected between the handlebar and the steering column welding assembly; on the top of the handlebar, there are a left handlebar upper mounting seat and a right handlebar upper mounting seat. The left handlebar upper mounting seat and the right handlebar upper mounting seat are respectively connected to the connecting riser tube through upper fixing bolts. The handlebar is clamped between the upper end of the connecting riser tube, the left handlebar upper mounting seat, and the right handlebar upper mounting seat.

[0006] Preferably, the connecting riser is a handlebar seat. An upper connecting cross tube of the steering column is provided at the upper end of the steering column welding assembly. A lower mounting seat of the steering column is provided below the upper connecting cross tube of the steering column. The lower mounting seat of the steering column and the handlebar seat are connected by a lower fixing bolt. The upper connecting cross tube of the steering column is clamped between the lower mounting seat of the steering column and the lower end of the handlebar seat.

[0007] Preferably, there are two lower mounting seats of the steering column, which are respectively arranged on both sides of the steering column welding assembly. The lower mounting seat of the steering column and the handlebar seat are connected by two lower fixing bolts.

[0008] Preferably, the connecting riser includes a front riser adjusting seat, a rear riser adjusting seat and an angle adjusting handle. The front riser adjusting seat and the rear riser adjusting seat are movably connected by connecting rods at the upper and lower ends respectively; several grooves are provided on the upper and lower sides of the front riser adjusting seat close to the rear riser adjusting seat. The handle connecting column pin is located in the groove. The handle connecting column pin is connected to the angle adjusting handle through a connecting column. The connecting column passes through the rear riser adjusting seat and can move relatively. A spring is provided between the rear riser adjusting seat and the handle connecting column pin.

[0009] Loosen the bolt, change the position of the handle connecting column pin on the front riser adjusting seat, so as to change the distance from the direction to the center of the seat cushion, thereby changing the riding triangle.

[0010] Preferably, the connecting rod includes a lower handlebar mounting seat and an upper steering column mounting seat. The lower handlebar mounting seat is provided below the handlebar. The lower handlebar mounting seat is respectively connected to the left upper handlebar mounting seat and the right upper handlebar mounting seat by upper fixing bolts; the upper steering column mounting seat is provided on the upper connecting cross tube of the steering column. The lower fixing bolt is connected between the lower mounting seat of the steering column and the upper mounting seat of the steering column.

[0011] Preferably, the upper ends of the front riser adjusting seat and the rear riser adjusting seat are respectively located between the lower handlebar mounting seats on both sides and are connected by a horizontally arranged bolt; the lower ends of the front riser adjusting seat and the rear riser adjusting seat are respectively located between the upper steering column mounting seats on both sides and are connected by a horizontally arranged bolt.

[0012] Preferably, the number of the grooves is 3.

[0013] Preferably, the tail end of the grip of the handlebar bends to one side.

[0014] Preferably, the tail end of the grip of the handlebar bends downward.

[0015] The tail end of the grip bends downward, so that the hand of the driver will not slip off the handlebar cover when driving the vehicle, increasing the safety performance of riding.

[0016] Preferably, it further includes a handlebar cover. The handlebar cover is sleeved on the grip of the handlebar. An annular groove is provided in the middle of the handlebar cover.

[0017] Beneficial effects:

[0018] The utility model is suitable for different user groups, satisfies the riding triangles of different height groups, provides a device for adjusting the relative distance between the handlebar and the center of the seat cushion, and improves the riding comfort. Description of the drawings

[0019] Figure 1 It is a three-dimensional view of the device for adjusting the handlebar before and after for Embodiment 1 of the utility model.

[0020] Figure 2 It is a three-dimensional view of one perspective of the device for adjusting the handlebar before and after for Embodiment 2 of the utility model.

[0021] Figure 3 It is a three-dimensional view of another perspective of the device for adjusting the handlebar before and after for Embodiment 2 of the utility model.

[0022] Figure 4 It is a side view of the device for adjusting the handlebar before and after for Embodiment 2 of the utility model.

[0023] In the figure: 1, forming belt; 2, left handlebar upper mounting seat; 3, handlebar; 4, cross tube connected to the steering column above; 5, steering column lower mounting seat; 6, steering column welding assembly; 7, lower fixing bolt; 8, handlebar seat; 9, handlebar grip; 91, annular groove; 10, upper fixing bolt; 11, right handlebar upper mounting seat; 12, angle adjustment handle; 13, rear riser adjustment seat; 14, front riser adjustment seat; 15, inner plate; 16, groove; 17, handle connecting column pin; 18, spring; 19, handlebar lower mounting seat; 20, steering column upper mounting seat. Detailed implementation manners

[0024] The following will further specifically illustrate the technical solutions of the utility model through specific embodiments and in conjunction with the drawings.

[0025] Embodiment 1: As Figure 1As shown in the figure, the utility model discloses a device for adjusting the front and rear of a handlebar, which includes a handlebar 3, a left handlebar upper mounting seat 2, a right handlebar upper mounting seat 11, a steering column lower mounting seat 5 and a handlebar seat 8; the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11 are located above the handlebar 3 and are respectively connected to the handlebar seat 8 through two upper fixing bolts 10. The handlebar 3 is clamped between the upper end of the handlebar seat 8 and the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11; there is a forming belt 1 connected between the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11. A grip sleeve 9 is sleeved on the end of the handlebar 3. There is a steering column lower mounting seat 5 below the transverse tube 4 connected to the steering column. The steering column lower mounting seat 5 and the handlebar seat 8 are connected through a lower fixing bolt 7. The transverse tube 4 connected to the steering column is clamped between the steering column lower mounting seat 5 and the lower end of the handlebar seat 8; the transverse tube 4 connected to the steering column is located at the upper end of the steering column welding assembly 6.

[0026] When in use, the handlebar 3 is fixed on the handlebar seat 8 by the left and right handlebar upper mounting seats 2, 11 and the upper fixing bolts 10, and the handlebar seat 8 is fixed on the transverse tube 4 connected to the steering column by the steering column lower mounting seat 5 and the lower fixing bolt 7. When the upper fixing bolts 10 of the left and right handlebar upper mounting seats are loosened, the handlebar 3 can rotate, so as to change the distance between the grip part and the middle of the seat cushion, achieving the purpose of adjusting the riding posture. Or loosen the lower fixing bolt 7 of the steering column lower mounting seat, rotate the handlebar seat 8 successively, turn the handlebar seat 8 over for use, and also adjust the distance between the handlebar 3 and the center of the seat cushion to adjust the posture.

[0027] In this embodiment, by loosening the fixing bolts and rotating the handlebar 3 or the handlebar seat 8, the distance between the hand-holding part of the handlebar 3 and the middle of the seat cushion is changed, achieving the purpose of adjusting the riding posture.

[0028] In this embodiment, both the handlebar seat and the handlebar can rotate.

[0029] Currently, most of the handlebar grippers on two-wheeled vehicles are straight bars, and the hand is easy to slip from the end; in order to prevent the hand from slipping off the handlebar, the grip part on the handlebar is made bent. The tails of the gripper parts at both ends of the handlebar 3 are bent downward. Although this design increases the processing difficulty, it improves the riding safety performance. Since the gripper part is bent, the hand is not easy to slip off from it.

[0030] The grip sleeve 9 can be made by opening a mold according to a straight bar. The mold making is simple, and the processed grip sleeve 9 can match the bent handlebar 3.

[0031] There is an annular groove 91 on the grip sleeve 9, so that the grip sleeve 9 can be made by opening a mold according to a straight bar, and the finished grip sleeve 9 can be used on the bent handlebar 3.

[0032] Embodiment 2: To adapt to different user groups and meet the riding triangles of different height groups, this embodiment provides another device for adjusting the front and rear of the handlebar, which can quickly adjust the relative distance between the handlebar and the center of the seat cushion.

[0033] As Figures 2 - 4 shown, the device for adjusting the front and rear of the handlebar includes a handlebar 3, a left handlebar upper mounting seat 2, a right handlebar upper mounting seat 11, a steering column lower mounting seat 5, a front riser adjusting seat 14, a rear riser adjusting seat 13, an angle adjusting handle 12, a handle connecting column pin 17, a handlebar lower mounting seat 19, and a steering column upper mounting seat 20.

[0034] The left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11 are located above the handlebar 3 and are respectively connected to the handlebar lower mounting seat 19 by two upper fixing bolts 10. The handlebar 3 is clamped between the handlebar lower mounting seat 19, the left handlebar upper mounting seat 2, and the right handlebar upper mounting seat 11; a forming belt 1 is provided between the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11.

[0035] A steering column lower mounting seat 5 is provided below the transverse pipe 4 connected to the steering column, and a steering column upper mounting seat 20 is provided above the transverse pipe 4 connected to the steering column. A lower fixing bolt 7 is connected between the steering column lower mounting seat 5 and the steering column upper mounting seat 20; the upper ends of the front riser adjusting seat 14 and the rear riser adjusting seat 13 are respectively located between the handlebar lower mounting seats 19 on both sides and are connected by horizontally arranged bolts; the lower ends of the front riser adjusting seat 14 and the rear riser adjusting seat 13 are respectively located between the steering column upper mounting seats 20 on both sides and are connected by horizontally arranged bolts; the handlebar lower mounting seat 19, the front riser adjusting seat 14, the steering column upper mounting seat 20, and the rear riser adjusting seat 13 form a quadrilateral structure. The front riser adjusting seat 14 and the rear riser adjusting seat 13 can rotate relative to the handlebar lower mounting seat 19 and the steering column upper mounting seat 20. A plurality of grooves 16 are provided up and down on one side of the front riser adjusting seat 14 close to the rear riser adjusting seat 13. The handle connecting column pin 17 is located in the grooves 16. The handle connecting column pin 17 is connected to the angle adjusting handle 12 through a connecting column. The connecting column passes through the rear riser adjusting seat 13 and can move relatively. A spring 18 is provided between the rear riser adjusting seat 13 and the handle connecting column pin 17. The elastic force of the spring 18 pushes the handle connecting column pin 17 into the grooves 16. The distance between the handlebar 3 and the center of the seat cushion is adjusted by the handle connecting column pin 17 being located in the upper and lower grooves 16; when adjusting, the upper fixing bolt 10 or the lower fixing bolt 7 needs to be loosened.

[0036] During use, loosen the four fixing bolts on the riser kit, pull the handlebar angle adjusting handle on the riser kit, rotate the rear riser adjusting seat, change the position of the handle connecting column pin in the front riser adjusting seat, thereby changing the distance between the handlebar and the center of the seat cushion, and thus changing the riding triangle.

[0037] In this embodiment, by pulling the angle adjustment handle, the position of the pin of the handle connecting column in the front adjustment seat of the riser pipe is changed to change the distance between the handlebar and the center of the seat cushion.

[0038] Embodiment 3: Refer to Figure 1 , the present utility model discloses a device for adjusting the front and rear of a handlebar, including a handlebar 3, a left handlebar upper mounting seat 2, a right handlebar upper mounting seat 11, a steering column lower mounting seat 5, and a handlebar seat 8; the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11 are located above the handlebar 3 and are respectively connected to the handlebar seat 8 by two upper fixing bolts 10. The handlebar 3 is clamped between the upper end of the handlebar seat 8 and the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11; a forming belt 1 is provided between the left handlebar upper mounting seat 2 and the right handlebar upper mounting seat 11. A handlebar grip 9 is sleeved on the end of the handlebar 3. A steering column lower mounting seat 5 is provided below the transverse tube 4 connected to the steering column. The steering column lower mounting seat 5 is connected to the handlebar seat 8 by a lower fixing bolt 7. The transverse tube 4 connected to the steering column is clamped between the steering column lower mounting seat 5 and the lower end of the handlebar seat 8; the transverse tube 4 connected to the steering column is located at the upper end of the steering column welding assembly 6.

[0039] During use, the handlebar 3 is fixed on the handlebar seat 8 by the left and right handlebar upper mounting seats 2, 11 and the upper fixing bolts 10, and the handlebar seat 8 is fixed on the transverse tube 4 connected to the steering column by the steering column lower mounting seat 5 and the lower fixing bolt 7. When the upper fixing bolts 10 on the left and right handlebar upper mounting seats are loosened, the handlebar 3 can rotate, so as to change the distance between the grip part and the middle of the seat cushion, achieving the purpose of adjusting the riding posture. Or loosen the lower fixing bolt 7 of the steering column lower mounting seat, rotate the handlebar seat 8 successively, turn the handlebar seat 8 over for use, and also adjust the distance between the handlebar 3 and the center of the seat cushion to adjust the posture.

[0040] In this embodiment, by loosening the fixing bolts and rotating the handlebar 3 or the handlebar seat 8, the distance between the grip part of the handlebar 3 and the middle of the seat cushion is changed, achieving the purpose of adjusting the posture.

[0041] In this embodiment, both the handlebar seat and the handlebar can rotate.

[0042] The tail end of the grip part of the handlebar in this embodiment bends upward. Since the grip part is bent, it is also not easy for the hand to slip off from above.

[0043] The handlebar grip 9 can be manufactured by opening a mold according to a straight handlebar. The mold manufacturing is simple, and the processed handlebar grip 9 can match the bent handlebar 3.

[0044] An annular groove 91 is provided on the handlebar grip 9. In this way, the handlebar grip 9 can be manufactured by opening a mold according to a straight handlebar, and the finished handlebar grip 9 can be used on the bent handlebar 3.

[0045] Compared with Embodiment 1, the end of the handlebar grip is bent upward, and the grip is bent, so that the hand is not likely to slip off from above.

[0046] Embodiment 4: To adapt to different user groups and meet the riding triangles of different height groups, this embodiment provides another device for adjusting the front and rear of the handlebar, which can quickly adjust the relative distance between the handlebar and the center of the seat cushion.

[0047] A device for adjusting the front and rear of the handlebar includes a handlebar 3, a steering column welding assembly 6, and a connecting riser. The connecting riser is connected between the handlebar 3 and the steering column welding assembly 6; the connecting riser includes a front riser adjusting seat 14, a rear riser adjusting seat 13, and an angle adjusting handle 12. The front riser adjusting seat 14 and the rear riser adjusting seat 13 are movably connected by connecting rods at the upper and lower ends respectively; several grooves 16 are provided on the upper and lower sides of the front riser adjusting seat 14 close to the rear riser adjusting seat 13. A handle connecting column pin 17 is located in the groove 16. The handle connecting column pin 17 is connected to the angle adjusting handle 12 through a connecting column. The connecting column passes through the rear riser adjusting seat 13 and can move relatively. A spring 18 is provided between the rear riser adjusting seat 13 and the handle connecting column pin 17.

[0048] The upper connecting rod is welded under the handlebar 3, the lower connecting rod is a mounting seat 20 on the steering column, and the mounting seat 20 on the steering column is arranged on the upper connecting cross tube 4 of the steering column. The lower fixing bolt 7 is connected between the lower mounting seat 5 of the steering column and the mounting seat 20 on the steering column.

[0049] The upper ends of the front riser adjusting seat 14 and the rear riser adjusting seat 13 are respectively located between the handlebar lower mounting seats 19 on both sides and are connected by horizontally arranged bolts; the lower ends of the front riser adjusting seat 14 and the rear riser adjusting seat 13 are respectively located between the mounting seats 20 on the steering column on both sides and are connected by horizontally arranged bolts.

[0050] When in use, loosen the lower fixing bolt 7, pull the handlebar angle adjusting handle on the riser kit, rotate the rear riser adjusting seat, change the position of the handle connecting column pin in the front riser adjusting seat, so as to change the distance between the handlebar and the center of the seat cushion, and thus change the riding triangle.

[0051] The difference between this embodiment and Embodiment 2 is that the connecting riser is composed of a quadrilateral, and the upper connecting rod is welded to the handlebar. It is necessary to loosen the lower fixing bolt 7 and adjust the device for the front and rear of the handlebar by rotating the upper connecting cross tube 4 of the steering column.

[0052] Embodiment 5: To adapt to different user groups and meet the riding triangles of different height groups, this embodiment provides another device for adjusting the front and rear of the handlebar, which can quickly adjust the relative distance between the handlebar and the center of the seat cushion.

[0053] The device for adjusting the front and rear of the handlebar includes a handlebar 3, a left handlebar upper mount 2, a right handlebar upper mount 11, a steering column lower mount 5, a front riser adjustment seat 14, a rear riser adjustment seat 13, an angle adjustment handle 12, a handle connection column pin 17, a handlebar lower mount 19, and a steering column upper mount 20.

[0054] The left handlebar upper mount 2 and the right handlebar upper mount 11 are located above the handlebar 3 and are respectively connected to the handlebar lower mount 19 by two upper fixing bolts 10. The handlebar 3 is clamped between the handlebar lower mount 19, the left handlebar upper mount 2, and the right handlebar upper mount 11.

[0055] Below the upper connecting cross tube 4 of the steering column is provided with a steering column lower mount 5, and above the upper connecting cross tube 4 of the steering column is provided with a steering column upper mount 20. The lower fixing bolt 7 is connected between the steering column lower mount 5 and the steering column upper mount 20; the upper ends of the front riser adjustment seat 14 and the rear riser adjustment seat 13 are respectively located between the handlebar lower mounts 19 on both sides and are connected by laterally arranged bolts; the lower ends of the front riser adjustment seat 14 and the rear riser adjustment seat 13 are respectively located between the steering column upper mounts 20 on both sides and are connected by laterally arranged bolts; the handlebar lower mount 19, the front riser adjustment seat 14, the steering column upper mount 20, and the rear riser adjustment seat 13 form a quadrilateral structure. The front riser adjustment seat 14 and the rear riser adjustment seat 13 can rotate relative to the handlebar lower mount 19 and the steering column upper mount 20. An inner plate 15 is provided inside the front riser adjustment seat 14. The side of the inner plate 15 facing the rear riser adjustment seat 13 is an outwardly convex arc. A number of grooves 16 are provided on the inner plate 15. The handle connection column pin 17 is located in the grooves 16. The handle connection column pin 17 is connected to the angle adjustment handle 12 through a connection column. The connection column passes through the rear riser adjustment seat 13 and can move relatively. A spring 18 is provided between the rear riser adjustment seat 13 and the handle connection column pin 17. The elastic force of the spring 18 pushes the handle connection column pin 17 into the grooves 16. The distance between the handlebar 3 and the center of the seat cushion is adjusted by the handle connection column pin 17 being located in the upper and lower grooves 16; when adjusting, the upper fixing bolt 10 or the lower fixing bolt 7 needs to be loosened.

[0056] When in use, loosen the four fixing bolts on the riser kit, pull the handlebar angle adjustment handle on the riser kit, rotate the rear riser adjustment seat, change the position of the handle connection column pin in the front riser adjustment seat, thereby changing the distance between the handlebar and the center of the seat cushion, and thus changing the riding triangle.

[0057] The difference between this embodiment and Embodiment 2 is that the rear riser adjustment seat 13 is a two-piece structure and can be disassembled, which is convenient for repairing and replacing the inner plate of the rear riser adjustment seat 13.

[0058] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for adjusting the front and rear of a handlebar, comprising a handlebar (3) and a steering column welding assembly (6), characterized in that, It further includes a connecting riser pipe, which is connected between the handlebar (3) and the steering column welding assembly (6); on the upper surface of the handlebar (3), there are a left handlebar upper mounting seat (2) and a right handlebar upper mounting seat (11), and the left handlebar upper mounting seat (2) and the right handlebar upper mounting seat (11) are respectively connected to the connecting riser pipe through upper fixing bolts (10), and the handlebar (3) is clamped between the upper end of the connecting riser pipe and the left handlebar upper mounting seat (2) and the right handlebar upper mounting seat (11).

2. The device for adjusting the front and back according to the adjustment direction described in claim 1, wherein, The connecting riser pipe is a handlebar seat (8), and the upper end of the steering column welding assembly (6) is provided with a steering column upper connecting cross pipe (4). Below the steering column upper connecting cross pipe (4), there is a steering column lower mounting seat (5). The steering column lower mounting seat (5) and the handlebar seat (8) are connected through a lower fixing bolt (7), and the steering column upper connecting cross pipe (4) is clamped between the steering column lower mounting seat (5) and the lower end of the handlebar seat (8).

3. The device before and after according to the adjustment direction described in claim 2, characterized in that There are two of the steering column lower mounting seats (5), which are respectively arranged on both sides of the steering column welding assembly (6), and the steering column lower mounting seat (5) and the handlebar seat (8) are connected through two lower fixing bolts (7).

4. The device before and after according to the adjustment direction described in claim 1, characterized in that, The connecting riser pipe includes a riser front adjusting seat (14), a riser rear adjusting seat (13) and an angle adjusting handle (12). The riser front adjusting seat (14) and the riser rear adjusting seat (13) are respectively movably connected at the upper and lower ends through connecting rods; on the side of the riser front adjusting seat (14) close to the riser rear adjusting seat (13), there are a number of grooves (16) up and down. A handle connecting column pin (17) is located in the groove (16), and the handle connecting column pin (17) is connected to the angle adjusting handle (12) through a connecting column. The connecting column passes through the riser rear adjusting seat (13) and can move relatively. A spring (18) is provided between the riser rear adjusting seat (13) and the handle connecting column pin (17).

5. The device for adjusting the front and back according to the direction as claimed in claim 4, wherein, The connecting rod includes a handlebar lower mounting seat (19) and a steering column upper mounting seat (20). The handlebar lower mounting seat (19) is arranged below the handlebar (3), and the handlebar lower mounting seat (19) is respectively connected to the left handlebar upper mounting seat (2) and the right handlebar upper mounting seat (11) through upper fixing bolts (10); the steering column upper mounting seat (20) is arranged above the steering column upper connecting cross pipe (4), and the lower fixing bolt (7) is connected between the steering column lower mounting seat (5) and the steering column upper mounting seat (20).

6. The device for adjusting the front and rear directions according to claim 5, characterized in that, The upper ends of the riser front adjusting seat (14) and the riser rear adjusting seat (13) are respectively located between the handlebar lower mounting seats (19) on both sides and are connected through horizontally arranged bolts; the lower ends of the riser front adjusting seat (14) and the riser rear adjusting seat (13) are respectively located between the steering column upper mounting seats (20) on both sides and are connected through horizontally arranged bolts.

7. The device for adjusting the front and rear directions according to claim 4 or 5 or 6, characterized in that The number of the grooves (16) is three.

8. The device for adjusting the front and back in the direction according to claim 1, characterized in that, The tail end of the grip part of the handlebar (3) bends to one side.

9. The device for adjusting the front and back in the direction according to claim 8, characterized in that, The tail end of the grip part of the handlebar (3) bends downward.

10. The device for adjusting the front and back in the direction according to claim 8, characterized in that, It further includes a handlebar grip (9), which is sleeved on the grip part of the handlebar (3), and an annular groove (91) is provided in the middle of the handlebar grip (9).

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