CN203996644U

CN203996644U - A kind of child's bicycle

Info

Publication number: CN203996644U
Application number: CN201420362923.7U
Authority: CN
Inventors: 胡杰
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2014-07-02
Filing date: 2014-07-02
Publication date: 2014-12-10
Anticipated expiration: 2024-07-02

Abstract

The utility model discloses a bicycle for children, which at least comprises a main frame, a rear fork fixed at the rear of the main frame, and a rear wheel arranged at the bottom of the rear fork. The two rear fork tubes on the side, each of the rear fork tubes is equipped with auxiliary wheel frames, the lower part of each of the auxiliary wheel frames is equipped with auxiliary wheels, and the upper part of the auxiliary wheel frames has a A branch pipe matched with the fork pipe, an elastic locking piece is provided between the branch pipe and the rear fork pipe, and the auxiliary wheel frame has a plurality of positions with different heights relative to the rear fork pipe, when the auxiliary wheel frame When the rear fork tube is at a certain height position, the elastic locking member cooperates with the branch tube and the rear fork tube at the same time to fix the auxiliary wheel frame at the height position. The auxiliary wheel frame on the children's bicycle is convenient for installation, disassembly and height adjustment, and can meet different use demands of children at different stages.

Description

A kind of child's bicycle

Technical field

the utility model relates to a kind of child's bicycle.

Background technology

on child's bicycle, for preventing that the children that just learn riding bicycle from falling down, and is provided with jockey pulley in the both sides of trailing wheel conventionally.But in prior art, the jockey pulley on child's bicycle is to be all fixedly mounted on the back vent of bicycle by auxiliary wheel carrier, and jockey pulley height overhead often can not regulate, the common like this operating needs that can not meet each stage children.When children can independent riding bicycle, the dismounting of this jockey pulley is also more loaded down with trivial details, uses comparatively inconvenience.

Summary of the invention

the purpose of this utility model is the shortcoming that overcomes prior art, and a kind of child's bicycle of jockey pulley fast demountable is provided.

for achieving the above object, the technical solution adopted in the utility model is: a kind of child's bicycle, described child's bicycle at least comprises main car frame, be fixedly arranged on the back vent at described main car frame rear portion, be located at the trailing wheel of described back vent bottom, described back vent comprises two back breeches pipes that lay respectively at the described trailing wheel left and right sides, auxiliary wheel carrier is all installed on back breeches pipe described in each, described in each, the bottom of auxiliary wheel carrier is all provided with jockey pulley, the top of described auxiliary wheel carrier has the arm matching with described back breeches pipe, between described arm and described back breeches pipe, be provided with elastic locking part, described auxiliary wheel carrier has the position of a plurality of differing heights relatively with described back breeches pipe, when the relatively described back breeches pipe of described auxiliary wheel carrier is during at a certain height and position, described elastic locking part matches and described auxiliary wheel carrier is fixed on to this height and position with described arm and described back breeches pipe simultaneously.

preferably, in described arm, two parts of described back breeches pipe, parts can along self length direction corresponding matching insert in the tube chamber of another parts.

further preferably, described arm can insert in the tube chamber of described back breeches pipe along self length direction, described elastic locking part is located in the tube chamber of described arm, on the sidepiece of described elastic locking part, there is lock, the sidepiece of described arm offers through hole, on described back breeches pipe, offer a plurality of lock holes that distribute separately, described arm is located in described back breeches pipe, described lock can along described through hole axially movably through described through hole and be plugged in accordingly described in one of them in lock hole.

further, described elastic locking part is bullet pin, and described lock is located on the sidepiece of described bullet pin, and described bullet pin can be telescopically located in the tube chamber of described arm along the radial elastic of described arm.

further, described back breeches pipe favours horizontal surface setting, and a plurality of described lock holes are evenly spaced apart along the length bearing of trend of described back breeches pipe.

preferably, described back breeches pipe can insert in the tube chamber of described arm along self length direction, described elastic locking part is located in the tube chamber of described back breeches pipe, on the sidepiece of described elastic locking part, there is lock, the sidepiece of described back breeches pipe offers through hole, on described arm, offer a plurality of lock holes that distribute separately, described back breeches pipe is located in described arm, described lock can along described through hole axially movably through described through hole and be plugged in accordingly described in one of them in lock hole.

further, described elastic locking part is bullet pin, and described lock is located on the sidepiece of described bullet pin, and described bullet pin can be telescopically located in the tube chamber of described back breeches pipe along the radial elastic of described back breeches pipe.

further, described back breeches pipe favours horizontal surface setting, and a plurality of described lock holes are evenly spaced apart along the length bearing of trend of described arm.

as preferred embodiment a kind of, described bullet pin is V-shape.

preferably, described auxiliary wheel carrier comprises superposed described arm, in bottom for install described jockey pulley mounting pipe, be connected to the connection pipe between described arm and described mounting pipe, described mounting pipe, described arm are arranged in parallel.

utilization due to technique scheme, the utility model compared with prior art has following advantages: child's bicycle of the present utility model, wherein by auxiliary wheel carrier is removably mounted on back vent, auxiliary wheel carrier has different setting height(from bottom)s on back vent, overhead Height Adjustable of the jockey pulley that makes to be located at auxiliary wheel carrier bottom, thus can meet the different demands of different phase children when using this child's bicycle.Meanwhile, the connection structure between auxiliary wheel carrier and back vent is simple, and the installation of auxiliary wheel carrier, dismounting and adjustment operation are all very convenient.

Accompanying drawing explanation

accompanying drawing 1 is the structural representation of child's bicycle in the utility model;

accompanying drawing 2 is the mounting structure schematic diagram one of jockey pulley in child's bicycle of the present utility model;

accompanying drawing 3 is the mounting structure schematic diagram two of jockey pulley in child's bicycle of the present utility model;

wherein: 1, main car frame; 2, back vent; 21, back breeches pipe; 22, lock hole; 3, trailing wheel; 4, jockey pulley; 5, auxiliary wheel carrier; 51, arm; 52, connection pipe; 53, mounting pipe; 6, bullet pin (elastic locking part); 61, lock; 7, front fork; 8, handlebar; 9, front-wheel; 10, seat.

The specific embodiment

below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further elaborated.

child's bicycle shown in Figure 1, comprise main car frame 1, be fixedly arranged on main car frame 1 rear portion back vent 2, be installed on the trailing wheel 3 of back vent 2 bottoms, be located at rotationally main car frame 1 front portion front fork 7, be installed on front fork 7 bottoms front-wheel 9, be fixedly arranged on front fork 7 handlebar 8 for turning to, be fixedly arranged on the seat 10 on main car frame 1.

shown in Fig. 2, Fig. 3, back vent 2 comprises two back breeches pipes 21 that lay respectively at trailing wheel 3 left and right sides, on each back breeches pipe 21, by auxiliary wheel carrier 5, jockey pulley 4 is installed respectively.Auxiliary wheel carrier 5 comprises arm 51, connection pipe 52, for the mounting pipe 53 of jockey pulley 4 is installed, wherein arm 51 and mounting pipe 53 are located at respectively the two ends of connection pipe 52, and arm 51 arranges in parallel to each other with mounting pipe 53, make auxiliary wheel carrier 5 roughly be Z-shaped.

arm 51 setting that matches with back breeches pipe 21, be provided with elastic locking part 6 between the two, the relative back breeches pipe 21 of auxiliary wheel carrier 5 has the position of differing heights, when the relative back breeches pipe 21 of auxiliary wheel carrier 5 is during at a certain height and position, elastic locking part 6 matches and auxiliary wheel carrier 5 is locked in to this height and position, thereby jockey pulley 4 is arranged under different height and positions with arm 51, back breeches pipe 21 simultaneously.

in the present embodiment, arm 51 can along self length bearing of trend corresponding matching penetrate in the tube chamber of back breeches pipe 21, elastic locking part adopts bullet pin 6, this bullet pin 6 is V-shape, the outside face of one sidepiece is provided with lock 61, on the sidepiece of arm 51, offering can be for the corresponding through hole inserting of above-mentioned lock 61 (not indicating in figure), on back breeches pipe 21, offer a plurality of lock holes 22 that distribute separately, bullet pin 6 can be telescopically located in the tube chamber of arm 51 along the radial elastic of arm 51, make lock 61 can along through hole axially movably through in the through hole on arm 51.When arm 51 and back breeches pipe 21 are mutually during locking, the lock 61 on bullet pin 6 is through the through hole on arm 51, and corresponding matching be plugged in one of them lock hole 22.

on back breeches pipe 21, the setting of from top to bottom successively decreasing successively of the spacing of a plurality of lock hole 22 center vertically and between trailing wheel 3 bottom surfaces, can guarantee that like this auxiliary wheel carrier 5 is installed on different height on back vent 2, thereby jockey pulley 4 alterable height is overhead changed.In the present embodiment, back breeches pipe 21 favours horizontal surface setting, and on back breeches pipe 21, lock hole 22 is provided with 3, and these 3 lock holes 22 length bearing of trend along back breeches pipe 21 on back breeches pipe 21 is evenly spaced apart.

during installation, first bullet pin 6 is inserted in the tube chamber of arm 51 on auxiliary wheel carrier 5, and make the lock 61 on bullet pin 6 pass the through hole on arm 51, then arm 51 is inserted in the tube chamber of back breeches pipe 21 along its length, when initial, be subject to the extruding of back breeches pipe 21 lumen walls, bullet pin 6 is radially extruded along arm 51, in lock 61 retraction through holes, until while arriving the position of one of them lock hole 22, under the resilient force of bullet pin 6, lock 61 inserts in lock hole 22 accordingly, realizing arm 51 is connected with the locking of back breeches pipe 21, also being about to jockey pulley 4 is installed on back vent 2 by auxiliary wheel carrier 5.

in the time jockey pulley 4 need to being disassembled or adjusts the height of jockey pulley 4, first press lock 61, make it exit lock hole 22.If need to heighten jockey pulley 4, upwards promote arm 51, lock 61 is snapped in the lock hole 22 of top accordingly; If need to turn down jockey pulley 4, pull down arm 51, lock 61 is snapped in the lock hole 22 of below accordingly; If jockey pulley 4 need to be disassembled, directly arm 51 be extracted from back breeches pipe 21.In use, user can need to regulate jockey pulley 4 apart from the height on ground according to children's use to this child's bicycle like this, and from the bottom up, lock 61 snaps in first lock hole 22, for just learning by bike, the bad children of degree of balance; Lock 61 snaps in second lock hole 22, for riding some times of bicycle but degree of balance is not also very good children; Lock 61 snaps in the 3rd lock hole 22, and for the reasonable children of degree of balance, the installation of jockey pulley 4 can prevent that child accident from falling down.

in addition, in above-described embodiment, as the bullet pin 6 of elastic locking part also replaceable one-tenth lock pin, this lock pin can be set to: comprise the lock pin body in the tube chamber that can insert arm 51, on the sidepiece of this lock pin body, lock is set, and between lock pin body and lock, spring is set, lock can be moved relative to lock pin body under the effect of spring, like this, can make lock insert in arm 51 can along through hole axially movably through this through hole.During installation, this lock pin is inserted in arm 51, then arm 51 is inserted in back breeches pipe 21 together with lock pin, also can realize the result of use of fast assembling-disassembling.

certainly, auxiliary wheel carrier 5 when mounted, also can arrange in the following manner: back breeches pipe 21 can along self length bearing of trend corresponding matching insert in the arm 51 on auxiliary wheel carrier 5 tops, through hole is opened on back breeches pipe 21, bullet pin 6 is located in the tube chamber of back breeches pipe 21, lock hole 22 is opened on arm 51, during installation, first bullet pin 6 inserted in the tube chamber of back breeches pipe 21 and make lock 61 pass through hole, then back breeches pipe 21 is inserted in the tube chamber of arm 51 together with bullet pin 6, lock 61 is inserted in one of them knock hole.So also can reach the result of use of fast assembling-disassembling.

above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.

Claims

1. A bicycle for children, the bicycle for children at least comprises a main frame, a rear fork fixed at the rear of the main frame, and a rear wheel at the bottom of the rear fork, characterized in that: the rear fork It includes two rear fork tubes respectively located on the left and right sides of the rear wheel, each of the rear fork tubes is equipped with an auxiliary wheel frame, and the lower part of each of the auxiliary wheel frames is equipped with an auxiliary wheel. The upper part of the wheel frame has a branch pipe matched with the rear fork tube, an elastic locking piece is arranged between the branch pipe and the rear fork pipe, and the auxiliary wheel frame has multiple different heights relative to the rear fork pipe position, when the auxiliary wheel frame is at a certain height position relative to the rear fork tube, the elastic locking part cooperates with the branch tube and the rear fork tube at the same time to fix the auxiliary wheel frame on the height position.

2. The children's bicycle according to claim 1, characterized in that: among the two parts of the branch pipe and the rear fork pipe, one part can be inserted into the lumen of the other part along its own length direction in a corresponding manner.

3. The bicycle for children according to claim 2, characterized in that: the branch pipe can be inserted into the lumen of the rear fork pipe along its length direction, the elastic locking member is arranged in the lumen of the branch pipe, There is a lock column on the side of the elastic locking member, through holes are opened on the side of the branch pipe, a plurality of locking holes distributed at intervals are opened on the rear fork pipe, and the branch pipe is set on the rear fork pipe. In the fork tube, the lock column can move through the through hole along the axial direction of the through hole and is correspondingly inserted in one of the locking holes.

4. The children's bicycle according to claim 3, characterized in that: the elastic locking member is a spring pin, the lock column is arranged on the side of the spring pin, and the spring pin can be moved along the side of the branch pipe. It is radially elastically and telescopically arranged in the lumen of the branch pipe.

5 . The children's bicycle according to claim 3 , wherein the rear fork tube is arranged obliquely to the horizontal plane, and a plurality of the locking holes are evenly spaced along the extending direction of the rear fork tube. 6 .

6. The children's bicycle according to claim 2, characterized in that: the rear fork tube can be inserted into the lumen of the branch tube along its length direction, and the elastic locking member is arranged in the lumen of the rear fork tube Among them, the side of the elastic locking member has a lock column, the side of the rear fork tube is provided with through holes, the branch tube is provided with a plurality of locking holes distributed at intervals, and the rear fork tube is penetrated In the branch pipe, the lock column can move through the through hole along the axial direction of the through hole and is correspondingly inserted in one of the locking holes.

7. The children's bicycle according to claim 6, characterized in that: the elastic locking member is a spring pin, the lock column is arranged on the side of the spring pin, and the spring pin can move along the rear fork The radial direction of the tube is elastically and telescopically arranged in the lumen of the rear fork tube.

8 . The children's bicycle according to claim 6 , wherein the rear fork tube is arranged obliquely to the horizontal plane, and a plurality of the locking holes are evenly spaced along the extending direction of the branch tube.

9. The children's bicycle according to claim 4 or 7, wherein the spring pin is V-shaped.

10. The children's bicycle according to claim 1, characterized in that: the auxiliary wheel frame includes the branch pipe located at the upper part, the installation pipe located at the lower part for installing the auxiliary wheel, and the auxiliary wheel frame connected between the branch pipe and the The connecting pipe between the installation pipes, the installation pipe and the branch pipe are arranged parallel to each other.