CN216684726U

CN216684726U - Special mountain bike of improved generation children

Info

Publication number: CN216684726U
Application number: CN202122953000.1U
Authority: CN
Inventors: 张楠; 张世长
Original assignee: Shandong Uniku Sporting Goods Co ltd
Current assignee: Shandong Uniku Sporting Goods Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-06-07
Anticipated expiration: 2031-11-29

Abstract

The utility model belongs to the technical field of mountain bikes, and particularly relates to an improved mountain bike special for children, which comprises a frame, an upper tube, a support rod, a second toothed sheet fixing arm, an installation sleeve and a handle sleeve, wherein a rear upper fork and an improved rear lower fork are welded on one side of the frame respectively, a first toothed sheet fixing arm is installed on a rear end face bolt of the rear upper fork, a flywheel is clamped on the front end face of the first toothed sheet fixing arm, a front head is welded at one end of the upper tube, a front fork upper tube is fixedly installed on the lower end face of the front head, a flat brake clamp is installed on one side of the front fork upper tube through a screw, and the size of the flat brake clamp is two inches. The utility model shortens the length of the rear lower fork by arranging the improved rear lower fork, thereby increasing the strength of the chain, indirectly increasing the length of the chain, ensuring that the speed change is smoother during the speed change, reducing the size of the original brake by arranging the flat brake clamp, and changing the size of the original brake into a two-inch flat brake, thereby improving the concealment of the brake and the strength of the brake.

Description

Special mountain bike of improved generation children

Technical Field

The utility model relates to the technical field of mountain bikes, in particular to an improved mountain bike special for children.

Background

With the continuous development of society, outdoor exercises are becoming a new and fashionable modern healthy life. People walk out of home at leisure, exercise bodies, are close to nature, relax moods, and healthy and environment-friendly outdoor sports are being favored by more and more people, especially outdoor bicycle sports and more people enjoyed during outdoor bicycle traveling. Current special mountain bike of children, the length dimension overlength of back lower fork to the intensity of back lower fork has been reduced, back lower fork length overlength also can increase the length that just leads to the chain, and indirect influence chain's intensity can lead to the phenomenon that the variable speed card is pause when the variable speed, and the size of brake clamp ware is too big simultaneously, and the disguise that leads to the brake ware is poor, and the size is too big also can lead to the intensity reduction of brake ware.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an improved mountain bike special for children, and solves the problems that the length size of a rear lower fork is too long, the size of a brake clamp is too large, and the concealment is poor.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a special mountain bike of improved generation children, includes frame, top tube, bracing piece, second tooth piece fixed arm, mounting sleeve and handle cover, the fork is gone up to the welding respectively in frame one side and is pitched down behind the improved generation, the preceding terminal surface of fork is rotated down behind the improved generation and is installed the chain wheel, the fixed surface of frame installs not hard up handle, the rear end face bolt of fork is gone up in the back installs first tooth piece fixed arm, the preceding terminal surface joint of first tooth piece fixed arm has the flywheel, the one end welding of top tube has preceding first, the lower terminal surface fixed mounting of preceding first has the front fork top tube, one side screw mounting of front fork top tube has flat-packed brake clamp, the size of flat-packed brake clamp is two inches.

As a preferable technical scheme of the utility model, a support rod is arranged on the rear end face of the first tooth piece fixing arm, and the support rod and the chain wheel are made of alloy steel.

As a preferable technical scheme of the utility model, one end of the support rod is welded with a rim, and the outer surface of the rim is nested with an outer cover.

As a preferred technical scheme of the present invention, one end of the improved rear lower fork is provided with a rear pull, and a second tooth fixing arm is mounted on a rear end face bolt of the upper tube of the front fork.

As a preferable technical scheme of the utility model, a brake disc is mounted on a rear end face bolt of the second tooth plate fixing arm, and a mounting sleeve is nested on the outer surface of the front head.

As a preferable technical scheme of the utility model, the outer surface of the mounting sleeve is welded with a handle bar, and the outer surface of the handle bar is glued with a handle sleeve.

As a preferable technical scheme of the utility model, the handlebar sleeve is made of nitrile rubber, and a brake crank speed change handle is arranged in front of the handlebar sleeve.

As a preferred technical scheme of the utility model, the outer surfaces of the frame, the upper pipe, the rear upper fork, the improved rear lower fork and the front head are subjected to plastic spraying treatment, and the chain wheel and the handle sleeve are subjected to quenching treatment.

Compared with the prior art, the utility model provides an improved mountain bike special for children, which has the following beneficial effects:

1. this special mountain bike of improved generation children, through setting up the lower back fork, shortened the length of lower back fork to increased the intensity of chain, indirect increase the length of chain, make the variable speed more smooth and easy when the variable speed.

2. This special mountain bike of improved generation children through setting up flush mounting brake clamp, has reduced the size of original brake ware, changes two cun flush mounting brake wares into to the disguise of brake ware and the intensity of brake ware have been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of a brake disc according to the present invention.

In the figure: 1. a frame; 2. feeding a pipe; 3. a rear upper fork; 4. an improved rear lower fork; 5. a chain wheel; 6. loosening the handle; 7. a first tooth fixing arm; 8. a flywheel; 9. a support bar; 10. a rim; 11. an outer tire; 12. a front head; 13. a front fork upper tube; 14. a second gear-fixing arm; 15. A brake disc; 16. installing a sleeve; 17. transverse clamping; 18. covering the handlebar; 19. a brake crank speed change handle; 20. flatly installing a brake clamp; 21. and (6) pulling out.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a special mountain bike of improved generation children, which comprises a vehicle rack 1, the top tube 2, bracing piece 9, second tooth piece fixed arm 14, mounting sleeve 16 and

handle cover

18, 1 one side of frame has welded respectively and has pitched 3 and improved generation back lower fork 4, the preceding terminal surface of fork 4 rotates and installs chain wheel 5 behind the improved generation, the fixed surface of frame 1 installs not hard up handle 6, back upper fork 3's rear end face bolt installs first tooth piece fixed arm 7, the preceding terminal surface joint of first tooth piece fixed arm 7 has flywheel 8, the one end welding of top tube 2 has preceding head 12, the lower terminal surface fixed mounting of preceding head 12 has preceding fork top tube 13, one side screw mounting of preceding fork top tube 13 has flat-mounted brake clamp 20, the size of flat-mounted brake clamp 20 is two cuns.

In this embodiment, the frame 1 is a rear upper fork 3 and an improved rear lower fork 4, and the improved rear lower fork 4 is one hundred thirty-five centimeters long, and the chain wheel 5 is connected with the flywheel 8 through the chain so as to drive the rotation of the rear wheel, and the first tooth fixing arm 7 provides a mounting position for the flywheel 8, and the flush-mounted brake clamp 20 is used for braking the vehicle.

Specifically, the rear end face of the first tooth piece fixing arm 7 is provided with a support rod 9, and the support rod 9 and the chain wheel 5 are made of alloy steel.

In this embodiment, the support rod 9 is used for supporting the rim 10, and the alloy steel has high strength, so that the support rod 9 and the chain wheel 5 are not easily damaged.

Specifically, one end of the support rod 9 is welded with a rim 10, and the outer surface of the rim 10 is nested with an outer tire 11.

In this embodiment, the rim 10 raises the mounting position of the tire casing 11, and the rim 10 facilitates the movement of the vehicle.

Specifically, one end of the improved rear lower fork 4 is provided with a rear pull 21, and a second gear fixing arm 14 is mounted on a rear end face bolt of the front fork upper tube 13.

In this embodiment, when the vehicle changes the flywheel 8 to change the speed, the rear pull 21 acts as a buffer for the chain, and the second tooth fixing arm 14 is used to fix the brake disc 15.

Specifically, a brake disc 15 is mounted on the rear end face of the second tooth fixing arm 14 through a bolt, and a mounting sleeve 16 is nested on the outer surface of the front head 12.

In this embodiment, the brake disc 15 is engaged with the brake clamp 20 to brake the vehicle, and the mounting sleeve 16 is used to connect the lever 17 to the front head 12.

Specifically, the outer surface of the mounting sleeve 16 is welded with a handle bar 17, and the outer surface of the handle bar 17 is glued with a handle sleeve 18.

In this embodiment, the mounting position of the handle bar 17 for the handle sleeve 18 is increased, and the comfort of the child when holding the handle bar 17 is improved by the handle sleeve 18.

Specifically, the handle sleeve 18 is made of nitrile rubber, and a brake lever speed change handle 19 is arranged in front of the handle sleeve 18.

In this embodiment, the nitrile rubber has high aging resistance and high abrasion resistance, so that the grip sleeve 18 is not easily damaged by abrasion.

Specifically, the outer surfaces of the frame 1, the upper pipe 2, the rear upper fork 3, the improved rear lower fork 4 and the front head 12 are subjected to plastic spraying treatment, and the chain wheel 5 and the handle sleeve 18 are subjected to quenching treatment.

In this embodiment, the purpose of the plastic spraying process is to prevent the frame 1, the upper tube 2, the rear upper fork 3, the modified rear lower fork 4 and the front head 12 from being damaged due to corrosion of the outer surfaces thereof.

The working principle and the using process of the utility model are as follows: when the bicycle is used, a child treads on the pedal plate to complete the seat bag, holds the handle sleeve 18 with two hands, then treads on the pedal plate with two feet to drive the chain wheel 5 to rotate, drives the flywheel 8 to rotate through the driving of the chain, drives the hub to rotate through the flywheel 8 to drive the rear wheel to rotate, realizes the movement of the bicycle, replaces the original rear lower fork with the improved rear lower fork 4 according to the requirement of the child, the length of the improved rear lower fork 4 is one hundred, thirty-five centimeters long, shortens the length of the rear lower fork, increases the strength of the chain, indirectly increases the length of the chain, ensures that the speed change is smoother during the speed change, presses the brake lever speed change handle 19 backwards when the bicycle needs to be braked during the riding process, brakes the bicycle through the friction between the flat-mounted brake clamp 20 and the brake disc 15, reduces the volume of the brake, and mounts the improved flat-mounted brake clamp 20, the concealment of the brake and the strength of the brake are improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a special mountain bike of improved generation children, includes frame (1), top tube (2), bracing piece (9), second rack fixed arm (14), installation sleeve pipe (16) and handle cover (18), its characterized in that: frame (1) one side has welded back fork (3) and improved generation back lower fork (4) respectively, the preceding terminal surface of fork (4) rotates and installs chain wheel (5) down after the improved generation, the outer fixed surface of frame (1) installs not hard up handle (6), the rear end face bolt of fork (3) installs first tooth piece fixed arm (7) in the back, the preceding terminal surface joint of first tooth piece fixed arm (7) has flywheel (8), the one end welding of top tube (2) has preceding first (12), the lower terminal surface fixed mounting of preceding first (12) has front fork top tube (13), the one side screw mounting of front fork top tube (13) has flat-packed brake clamp (20), the size of flat-packed brake clamp (20) is two cuns.

2. The improved mountain bike for children as claimed in claim 1, wherein: the rear end face of the first tooth piece fixing arm (7) is provided with a support rod (9), and the support rod (9) and the chain wheel (5) are made of alloy steel.

3. The improved mountain bike for children as claimed in claim 1, wherein: one end of the supporting rod (9) is welded with a rim (10), and the outer surface of the rim (10) is nested with a cover tire (11).

4. The improved mountain bike for children as claimed in claim 1, wherein: one end of the improved rear lower fork (4) is provided with a rear pull rod (21), and a second gear fixing arm (14) is mounted on a rear end face bolt of the front fork upper pipe (13).

5. The improved mountain bike for children as claimed in claim 1, wherein: the rear end face of the second tooth piece fixing arm (14) is provided with a brake disc (15) through a bolt, and the outer surface of the front head (12) is nested with a mounting sleeve (16).

6. The improved mountain bike for children as claimed in claim 1, wherein: the outer surface of the mounting sleeve (16) is welded with a handle bar (17), and the outer surface of the handle bar (17) is glued with a handle sleeve (18).

7. The improved mountain bike for children as claimed in claim 1, wherein: the handlebar sleeve (18) is made of nitrile rubber, and a brake crank speed change handlebar (19) is arranged in front of the handlebar sleeve (18).

8. The improved mountain bike for children as claimed in claim 1, wherein: the outer surfaces of the frame (1), the upper pipe (2), the rear upper fork (3), the improved rear lower fork (4) and the front head (12) are subjected to plastic spraying treatment, and the chain wheel (5) and the handle sleeve (18) are subjected to quenching treatment.