CN112061290A

CN112061290A - Folding handlebar stem for bicycle

Info

Publication number: CN112061290A
Application number: CN202010992683.9A
Authority: CN
Inventors: 何潮辉
Original assignee: Foshan Nanhai Songgang Yichuang Hardware Co ltd
Current assignee: Foshan Nanhai Songgang Yichuang Hardware Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2020-12-11
Anticipated expiration: 2040-09-21
Also published as: CN112061290B

Abstract

The invention discloses a bicycle folding handle vertical pipe, which comprises a vertical pipe, a pipe seat and a folder, wherein the bottom of the vertical pipe covers the pipe seat, the vertical pipe can turn over relative to the pipe seat, the folder is arranged at the covering position of the vertical pipe and the pipe seat, the folder comprises a handle, a locking block and a deflector rod, one end of the handle is connected to the pipe seat, the locking block is arranged in the handle, one end of the locking block is connected to the other end of the handle, the other end of the locking block is clamped to the vertical pipe, and the deflector rod penetrates through the handle. The invention has the advantages of simple structure, good stability, simple operation and convenient disassembly and assembly.

Description

Folding handlebar stem for bicycle

Technical Field

The invention belongs to the field of folding bicycles, and particularly relates to a handlebar stem of a folding bicycle.

Background

The folding bicycle is convenient to carry and transport by folding the vertical tube and the frame. The existing vertical pipe folding device has many assembly parts and is not easy to disassemble and assemble, and the folding device is not firm enough when riding, thereby influencing the control of the handlebar. There is a need for a handle stem that is stable and simple to operate.

Disclosure of Invention

The invention aims to provide a bicycle folding handlebar vertical pipe which is simple in structure and convenient to operate.

According to one aspect of the invention, the bicycle folding handle vertical pipe comprises a vertical pipe, a pipe seat and a folder, wherein the bottom of the vertical pipe covers the pipe seat, the vertical pipe can turn over relative to the pipe seat, the folder is arranged at the covering position of the vertical pipe and the pipe seat and comprises a handle, a locking block and a deflector rod, one end of the handle is connected to the pipe seat, the locking block is arranged in the handle, one end of the locking block is connected to the other end of the handle, the other end of the locking block is clamped to the vertical pipe, and the deflector rod penetrates through the handle and is clamped.

The shifting rod is triggered to unlock from the locking block, and meanwhile, the locking block is unlocked from the vertical pipe, so that the vertical pipe is turned over relative to the pipe seat, the vertical pipe drives the handlebar and the pipe seat to drive the frame to be folded, the locking and unlocking structure is simple, the operation is convenient, and convenience is brought to disassembly and maintenance.

Furthermore, the other end of the bottom of the vertical pipe is provided with an ear platform, the ear platform is provided with a vertical stud, the vertical stud is fixed through a transverse screw, the other end of the locking block is provided with a groove, the head of the vertical stud is clamped in the groove, and the locking block is close to the vertical pipe and forms an included angle with the vertical stud. Therefore, the vertical pipe and the locking block are locked by clamping the vertical stud and the groove.

Further, the latch segment is equipped with the lock chamber, and the end of driving lever is equipped with the hook platform, and the hook platform hook joint is equipped with the guide pillar between hook platform, the handle in the lock chamber, and the guide pillar has cup jointed first spring, and the one end of guide pillar is connected in the handle, and the other end sliding connection of guide pillar is in the driving lever, and the latch segment compresses tightly the handle through the second spring. Therefore, the shifting rod is pushed, the hook platform is loosened from the lock cavity, and the hook platform can hook the lock cavity to be locked under the action of the first spring, so that the operation is convenient.

Furthermore, one end of the bottom of the vertical pipe is connected with the pipe seat through a pin, one end of the handle is connected with the pipe seat through a pin, and the other end of the handle is connected with the locking block through a pin. Therefore, the vertical pipe is ensured to overturn relative to the pipe seat through pin connection, the handle rotates relative to the pipe seat, and the handle rotates relative to the locking block.

This folding riser of handlebar of bicycle still includes the head pipe, and the one end of head pipe is pegged graft in the riser to it is fixed through fixture, and fixture includes clamp ring, lock nut, screw rod and clamp plate, and the clamp ring is along vertical cover in the end of riser, and the open end of clamp ring passes the screw rod and connects, and the lock nut who is used for compressing tightly the clamp ring is installed to the one end of screw rod, and the other end of screw rod is fixed with the round pin axle parallel with the riser, and the round pin hub connection has the clamp plate, and the clamp plate compresses tightly along the clamp. The other end of the head pipe is also provided with the same clamping mechanism, and a clamping ring of the clamping mechanism is arranged along the transverse direction. Therefore, the clamp ring is sleeved on the head pipe connected with the vertical pipe and clamped, the screw rod pulls the pin shaft through the screw transmission of the locking nut and the screw rod, the clamp plate further compresses the clamp ring to play a role in fixing the vertical pipe, and the technical effect of folding the handlebar relative to the frame is achieved.

Further, the tube holder includes a cartridge portion and a fracture portion, and the cartridge portion is connected through the fracture portion by a lock bolt. Therefore, the clamping barrel part of the tube seat is used for being sleeved with the vertical tube connected with the frame, the clamping barrel part is locked by the locking bolt, and the technical effect that the frame is folded relative to the handlebar is achieved.

The invention has the advantages of simple structure, good stability, simple operation and convenient disassembly and assembly.

Drawings

FIG. 1 is a perspective view of a folding handlebar stem of the bicycle of the present invention;

FIG. 2 is an exploded view of the seat tube and seat cover of the folding handlebar seat tube of the bicycle shown in FIG. 1;

FIG. 3 is a locking state view of the seat tube of the folding handlebar of the bicycle shown in FIG. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the bicycle folding handlebar stem comprises a head pipe 1, a stem pipe 2, a stem base 3 and a folder 4, wherein the bottom of the stem pipe 2 covers the stem base 3, and one end of the bottom of the stem pipe 2 is pinned with the stem base 3, so that the stem pipe 2 can be turned over relative to the stem base 3. Folder 4 is installed to the lid department of closing of riser 2, tube socket 3, and folder 4 includes handle 5, latch segment 6 and driving lever 7, and the lower extreme of handle 5 and tube socket 3 pin joint to handle 5 can rotate relative to tube socket 3, and the direction of rotation is the same with the relative tube socket 3 upset direction of riser 2. The locking block 6 is arranged in the handle 5, the upper end of the locking block 6 is in pin connection with the upper end of the handle 5, so that the handle 5 can rotate relative to the locking block 6, and the rotation direction is the same as the overturning direction of the vertical pipe 2 relative to the pipe seat 3.

The other end of riser 2 bottom is equipped with ear platform 8, and vertical stud 9 is installed to ear platform 8, and vertical stud 9 is fixed through horizontal screw 10, and the lower extreme of latch segment 6 is equipped with recess 11, and the joint of the head 9a of vertical stud 9 is in recess 11, and latch segment 6 is close to riser 2 and has contained angle 26 with vertical stud 9. The locking block 6 is provided with a locking cavity 12, the shift lever 7 transversely penetrates through the handle 5, the tail end of the shift lever 7 is provided with a hook platform 13, the hook platform 13 is hooked in the locking cavity 12, a guide pillar 14 is arranged between the hook platform 13 and the handle 5, the guide pillar 14 is sleeved with a first spring 15, one end of the guide pillar 14 is connected to the handle 5, the other end of the guide pillar 14 is inserted into the shift lever 7, and the locking block 6 tightly presses the handle 5 through a second spring 16.

One end of the head pipe 1 is inserted into the vertical pipe 2 and fixed by a clamping mechanism 17, the clamping mechanism 17 comprises a clamping ring 18, a locking nut 19, a screw rod 20 and a pressing plate 21, the clamping ring 18 is vertically sleeved at the tail end of the vertical pipe 2, the open end of the clamping ring 18 penetrates through the screw rod 20 to be connected, the locking nut 19 used for pressing the clamping ring 18 is installed at one end of the screw rod 20, a pin shaft 22 parallel to the vertical pipe 2 is fixed at the other end of the screw rod 20, the pin shaft 22 is connected with the pressing plate 21, and the pressing plate 21 is pressed along the clamping ring 18. The other end of the head tube 1 is also provided with the same clamping mechanism 17, and a clamping ring 18 of the clamping mechanism 17 is arranged along the transverse direction and used for clamping the handle transverse tube. The clamp ring 18 is sleeved on and clamped by the head tube 1 and the vertical tube 2 connected with the handlebar, and through the screw transmission of the locking nut 19 and the screw rod 20, the screw rod 20 pulls the pin shaft 22 tightly, so that the pressing plate 21 presses the clamp ring 18 tightly to play a role in fixing the head tube 1 and the vertical tube 2, and the handlebar is convenient to fold relative to the frame. The socket 3 includes a collet portion 23 and a cutout portion 24, and the collet portion 23 is connected through the cutout portion 24 by a lock bolt 25. The clamping barrel part 23 of the tube seat 3 is used for sleeving a vertical tube connected with the frame, and the locking bolt 25 locks the clamping barrel part 23 so as to be convenient for folding the frame relative to a handlebar.

As shown in fig. 1 and 2, the locking and unlocking processes of the folder 4 are as follows:

when the locking device is unlocked, the shift lever 7 is pushed transversely, the shift lever 7 slides along the guide post 14 and compresses the first spring 15 until the hook platform 13 is unhooked from the lock cavity 12, at the moment, the locking block 6 is popped up by the second spring 16 and rotates relative to the handle 5, so that the head 9a of the vertical stud 9 is separated from the groove 11, the handle 5 is pulled to rotate relative to the tube seat 3, the vertical tube 2 is turned over and opened relative to the tube seat 3, and the unlocking process of the vertical tube 2 and the tube seat 3 is realized.

As shown in fig. 3, during locking, the vertical pipe 2 is turned over and covered relative to the pipe seat 3, the handle 5 is pulled to rotate relative to the pipe seat 3 until the hook platform 13 is hooked in the lock cavity 12, and meanwhile, when the locking block 6 and the vertical stud 9 are located on the same straight line, the head 9a of the vertical stud 9 is completely clamped into the groove 11, but the locking block 6 and the vertical stud 9 are not completely locked, the handle 5 needs to be pulled continuously to enable the locking block 6 to be close to the vertical pipe 2 until the locking block 6 and the vertical stud 9 form an included angle 26, and the locking block 6 and the vertical stud 9 are completely locked, so that the locking process of the vertical pipe 2 and the pipe seat 3 is realized.

After the folder 4 is unlocked, the vertical pipe 2 drives the handlebar and the pipe seat 3 drives the frame to complete the folding process, the locking and unlocking structure is simple, the operation is convenient, and the convenience is brought to the disassembly and maintenance.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The folding riser of bicycle, its characterized in that, including riser (2), tube socket (3) and scray (4), the bottom lid of riser (2) fits tube socket (3), the one end and tube socket (3) pin joint of riser (2) bottom, riser (2), the lid of tube socket (3) is closed and is located to install scray (4), scray (4) are including handle (5), latch segment (6) and driving lever (7), the one end and the tube socket (3) pin joint of handle (5), place handle (5) in latch segment (6), the other end of handle (5) and the one end pin joint of latch segment (6), the other end joint in riser (2) of latch segment (6), driving lever (7) pass handle (5) joint in latch segment (6).

2. The bicycle folding handle stem according to claim 1, characterized in that the other end of the bottom of the stem (2) is provided with an ear platform (8), the ear platform (8) is provided with a vertical stud (9), the vertical stud (9) is fixed by a transverse screw (10), the other end of the locking block (6) is provided with a groove (11), and the head (9a) of the vertical stud (9) is clamped in the groove (11).

3. The bicycle folding handle stem according to claim 2, wherein the locking block (6) is provided with a locking cavity (12), the end of the shift lever (7) is provided with a hooking platform (13), the hooking platform (13) is hooked in the locking cavity (12), a guide pillar (14) is arranged between the hooking platform (13) and the handle (5), the guide pillar (14) is sleeved with a first spring (15), one end of the guide pillar (14) is connected to the handle (5), the other end of the guide pillar (14) is slidably connected to the shift lever (7), and the locking block (6) presses the handle (5) through a second spring (16).

4. The bicycle folding handle stand pipe according to claim 1 or 3, further comprising a head pipe (1), wherein one end of the head pipe (1) is inserted into the stand pipe (2) and fixed by a clamping mechanism (17), the clamping mechanism (17) comprises a clamping ring (18), a locking nut (19), a screw rod (20) and a pressing plate (21), the clamping ring (18) is vertically sleeved at the tail end of the stand pipe (2), the open end of the clamping ring (18) penetrates through the screw rod (20) to be connected, the locking nut (19) used for pressing the clamping ring (18) is installed at one end of the screw rod (20), a pin shaft (22) parallel to the stand pipe (2) is fixed at the other end of the screw rod (20), the pin shaft (22) is connected with the pressing plate (21), and the pressing plate (21) is pressed along the clamping ring (18).

5. Bicycle folding handle stem according to claim 4, characterized in that the other end of the head tube (1) is also provided with the same clamping means (17), the clamping ring (18) of which clamping means (17) is arranged in the transverse direction.

6. The bicycle folding handle riser according to claim 1 or 3, characterized in that the tube seat (3) comprises a cartridge part (23) and a break-away part (24), the cartridge part (23) being connected through the break-away part (24) by means of a locking bolt (25).