CN112026968A

CN112026968A - Children tricycle

Info

Publication number: CN112026968A
Application number: CN202010861462.8A
Authority: CN
Inventors: 蔡辉; 陈星�
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-07-06
Filing date: 2020-08-25
Publication date: 2020-12-04
Also published as: CN212637780U; CN213292582U

Abstract

The invention discloses a children tricycle, which comprises a front frame, a main frame, and two groups of rear frames, wherein the front part of the main frame is connected with the front frame, the two groups of rear frames are respectively arranged on the left side and the right side of the main frame and are connected with the main frame, the rear frame on each side comprises a rear supporting rod and a connecting rod, a rear wheel is arranged at the bottom of the rear supporting rod, the upper part of the rear supporting rod is rotationally connected to the main frame, one end part of the connecting rod is rotationally connected to the rear supporting rod, and the other end part of the connecting rod can rotate relatively and can be connected to the main; the front frame is rotatably connected to the front portion of the main frame, and when the tricycle is in a folded state, the rear support rods turn forward and the front frame turns backward to be respectively folded with the main frame. This tricycle folding operation is convenient, and each member in the folding tricycle all draws in together closely, and the compactness of structure ten minutes, occupation space is less, has brought the facility for the user daily carries and accomodates etc..

Description

Children tricycle

Technical Field

The invention relates to the field of children products, in particular to a foldable children tricycle.

Background

The tricycle for children in the prior art comprises a front fork, a front fork sleeve, a front wheel, a handlebar, a rear support frame, a left rear wheel assembly, a right rear wheel assembly, pedals and a seat, wherein the front fork sleeve is sleeved on the front fork in a relatively rotatable mode, the front wheel is arranged on the lower portion of the front fork, the handlebar is arranged on the upper portion of the front fork and used for controlling the front wheel to steer, the rear support frame is connected with the front fork sleeve, the left rear wheel assembly and the right rear wheel assembly are respectively arranged on the left side and the right side of the rear. However, most of the existing children tricycles cannot be folded, are large in size when not applicable, and are very inconvenient to carry and store. At present, although some vehicle types can be folded, the size after folding is still larger.

Disclosure of Invention

The invention aims to provide a child tricycle with a novel structure.

In order to achieve the purpose, the invention adopts the technical scheme that: a children tricycle comprises a front frame, front wheels arranged at the bottom of the front frame, a main frame, a seat, two groups of rear frames and rear wheels, wherein the front part of the main frame is connected with the front frame;

the front frame comprises a front fork, a front fork sleeve pipe and a handlebar, wherein the front fork sleeve pipe is sleeved on the front fork in a relatively rotatable mode, the handlebar is arranged on the upper portion of the front fork and used for controlling the steering of front wheels, the front wheels are rotatably installed at the bottom of the front fork through a front wheel shaft, the front fork sleeve pipe is rotatably connected to the front portion of the main frame, and when the tricycle is in a folded state, the rear supporting rod overturns forwards and the front frame overturns backwards to be respectively folded with the main frame.

Preferably, the main frame is provided with a sliding part, the sliding part is arranged on the main frame in a manner of relatively sliding along the front-back direction and is positioned in front of the joint of the rear strut and the main frame, and the upper parts of the connecting rods at two sides are respectively and rotatably connected to the sliding part.

Furthermore, the main frame is provided with a cross rod extending along the front-rear direction, the sliding part can be arranged on the cross rod in a relative sliding mode along the length extending direction of the cross rod, when the tricycle is folded, the sliding part slides forwards along the cross rod, and the connecting rod and the rear support rod are mutually close to each other and are collected at the side part of the cross rod.

Furthermore, the main frame is provided with a cross rod extending along the front-back direction and a mounting seat fixedly arranged at the rear part of the cross rod, the sliding part can be arranged at the bottom of the cross rod in a relative sliding manner along the length extending direction of the cross rod, the upper parts of the connecting rods at two sides are respectively pivoted on the left side part and the right side part of the sliding part, the upper parts of the rear supporting rods at two sides are respectively pivoted on the left side part and the right side part of the mounting seat, and when the tricycle is in a folded state, the connecting rods and the rear supporting rods are folded at the side parts of the cross rod.

Furthermore, the mounting seat is provided with a seat body and connectors fixedly arranged on the left side and the right side of the seat body, the connectors extend forwards and downwards from the side part of the seat body, and the upper part of the rear supporting rod is pivotally connected to the connectors on the same side.

Further, on each of the left and right sides of the main frame, the upper portion of the rear stay is rotatably connected to the rear portion of the main frame through a first shaft, the upper portion of the connecting rod is connected to the slider through a second shaft pivot, the lower portion of the connecting rod is connected to the rear stay through a third shaft pivot, and the axial lines of the first shaft, the second shaft, and the third shaft are parallel to each other and are all inclined inwardly and downwardly in the left-right direction from the outside.

Preferably, the seat is fixedly arranged on the main frame, when the tricycle is in a folded state, the two rear wheels are respectively gathered at the left side and the right side of the main frame, and the rear wheels are positioned in front of the seat.

Preferably, when the tricycle is in a folded state, the front frame is folded under the rear frame, and the front wheel axle of the front wheel extends in an up-down direction.

Preferably, the front frame further comprises two sets of pedal levers respectively arranged at the left side and the right side of the front fork, the pedal levers are rotatably connected to the front fork and detachably connected with the front wheel shaft, the pedal levers have an open state and a folded state, and when the pedal levers are in the open state, the pedal levers extend along the horizontal direction; when the bicycle is in a folding state, the pedal rod is disconnected from the front wheel shaft, extends along the vertical direction and is folded with the front wheel.

Preferably, the handlebar has a vertical rod and a handle bar fixedly arranged on the upper portion of the vertical rod and extending in the left-right direction, the upper portion of the front fork has a front fork shaft rod extending in the up-down direction, the lower portion of the vertical rod and the upper portion of the front fork shaft rod are respectively connected with the front fork sleeve in a relatively rotating manner, the upper portion of the front fork shaft rod is connected with the lower portion of the vertical rod in a rotating manner, and the upper portion of the front fork shaft rod and the lower portion of the vertical rod are locked by a locking assembly, when the tricycle is in a folded state, the front fork shaft rod and the vertical rod rotate relatively, the front fork drives the front wheel to be folded below the main frame, and the handle bar extends in the left-right direction.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child tricycle disclosed by the invention is simple in structure and convenient to fold and operate, all rod pieces in the folded tricycle are tightly folded together, the structure is very compact, the occupied space is small, and convenience is brought to daily carrying and storage of a user.

Drawings

FIG. 1 is a perspective view of a child tricycle according to the present invention in an expanded state;

FIG. 2 is a side view of the child tricycle of the present invention in an expanded state;

FIG. 3 is a top view of the child tricycle of the present invention in an expanded state;

FIG. 4 is a rear view of the tricycle of the present invention in an expanded state;

FIG. 5-1 is a schematic perspective view of a front frame of a child's tricycle in accordance with the present invention;

FIG. 5-2 is a front elevational view of the front frame of the children's tricycle of the present invention;

FIG. 5-3 is a longitudinal cut-away schematic view of FIG. 5-2;

FIGS. 5-4 are side views of the front frame of the children's tricycle of the present invention;

FIGS. 5-5 are longitudinal sectional views of FIGS. 5-4;

FIGS. 5-6 are schematic views of the connection between the front fork sleeve and the front fork and the handlebar of the tricycle for children of the present invention;

FIGS. 5-7 are longitudinal sectional views of FIGS. 5-6;

FIG. 6-1 is a schematic perspective view of the front frame of the children's tricycle of the present invention, wherein the front fork is rotated 90 degrees relative to the handlebar at the front wheel;

FIG. 6-2 is a front elevational view of the front frame of FIG. 6-1;

FIG. 6-3 is a side view of the front frame of FIG. 6-1;

FIG. 7 is a perspective view of a semi-folded state I of the child tricycle of the present invention;

FIG. 8 is a side view of the children's tricycle of FIG. 7;

FIG. 9 is a top view of the child tricycle of FIG. 7;

FIG. 10 is a side view of a semi-folded configuration II of the child tricycle of the present invention;

FIG. 11 is a top view of the child tricycle of FIG. 10;

FIG. 12 is a perspective view of the child tricycle of the present invention in a folded configuration;

FIG. 13 is a side view of the child tricycle of the present invention in a folded configuration;

FIG. 14 is a top view of the child tricycle of the present invention in a folded configuration;

wherein: 10. a front frame; 20. a rear frame; 30. a main frame; 40. a seat; 1. a front fork; 11. a front fork shaft lever; 11a, a shaft body; 11b, connecting end heads; 2. a handlebar; 21. erecting a rod; 21a, a rod body; 21b, a connecting rod; 22. a handle bar; 3. a front fork sleeve; 4. a cross bar; 5. a rear support rod; 6. a connecting rod; 7. a slider; 8. a mounting seat; 81. a seat body; 82. a connector; 9. a foot rest lever; 101. a first shaft; 102. a second shaft; 103. a third axis; 104. a front wheel axle; 105. a connecting shaft; 106. a locking shaft;

100. a front wheel; 200. and a rear wheel.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 14, a tricycle for children includes a front frame 10, front wheels 100 provided at the bottom of the front frame 10, a main frame 30 having a front portion connected to the front frame 10, a seat 40 provided on the main frame 30, two rear frames 20 respectively provided at left and right sides of the main frame 30 and connected to the main frame 30, and rear wheels 200 provided at the bottom of the rear frames 20.

The rear frame 20 on each side includes a rear stay 5 and a link 6, the rear wheel 200 is provided at the bottom of the rear stay 5, the upper portion of the rear stay 5 is rotatably connected to the main frame 30, one end portion of the link 6 is rotatably connected to the rear stay 5, and the other end portion of the link 6 is connected to the main frame 30 so as to be relatively rotatable and slidable in the front-rear direction. The front frame 10 includes a front fork 1, a front fork sleeve 3 relatively rotatably fitted over the front fork 1, and a handle bar 2 provided at an upper portion of the front fork 1 for controlling the steering of a front wheel 100, the front wheel 100 being rotatably mounted to a bottom portion of the front fork 1 via a front wheel shaft 104, the front fork sleeve 3 being rotatably coupled to a front portion of the main frame 30.

Specifically, referring to the drawings, the main frame 30 has a cross bar 4 extending in the front-rear direction, and a mount 8 fixedly provided at the rear of the cross bar 4, and a seat 40 fixedly provided on the cross bar 4. The main frame 30 is provided with a slider 7, the slider 7 is provided at the bottom of the cross bar 4 so as to be relatively slidable in the front-rear direction, the upper portions of the links 6 on both sides are pivotally connected to both left and right side portions of the slider 7, respectively, and the upper portions of the rear links 5 on both sides are pivotally connected to both left and right side portions of the mount base 8, respectively. Here, specifically, the mounting base 8 has a base body 81, and connection heads 82 fixed to both left and right sides of the base body 81, the connection heads 82 extending forward and downward from the side of the base body 81, and the upper portion of the rear bar 5 is pivotally connected to the connection heads 82 on the same side. The seat body 81 may be used for the fixed mounting of the push handle.

On each of the left and right sides of the main frame 30, the upper portion of the rear stay 5 is pivotally connected to the mount base 8 by a first shaft 101, the upper portion of the link 6 is pivotally connected to the slider 7 by a second shaft 102, the lower portion of the link 6 is pivotally connected to the rear stay 5 by a third shaft 103, and the axial lines of the first shaft 101, the second shaft 102, and the third shaft 103 are parallel to each other and extend obliquely downward from the outer side to the inner side in the left-right direction. Thus, when the rear stays 5 at both sides are rotated and folded with respect to the main frame 30, the lateral distance between the lower portions of the rear stays 5 at both sides is gradually decreased, thereby enabling to reduce the lateral size of the folded tricycle.

Referring to the drawings, particularly to fig. 5-1 to 5-7 and 6-1 to 6-3, a fork 1 is rotatably connected to a handle bar 2 about a rotation center line extending in an up-down direction, and a locking assembly for locking the fork 1 and the handle bar 2 is provided between the two. The locking assembly has a locking state in which the handlebar 2 and the front fork 1 are relatively fixed and can be rotated together relative to the front fork sleeve 3 for controlling the steering operation of the front wheel 100 by the handlebar 2; in the unlocked state, the handlebar 2 and the front fork 1 can rotate relatively.

Specifically, the handlebar 2 has a stem 21 and a handle bar 22 fixed to an upper portion of the stem 21 and extending in the left-right direction, an upper portion of the front fork 1 has a front fork axle 11 extending in the up-down direction, a lower portion of the stem 21 and an upper portion of the front fork axle 11 are rotatably coupled to the front fork sleeve 3, respectively, and an upper portion of the front fork axle 11 and a lower portion of the stem 21 are rotatably coupled therebetween.

Here, the upright 21 includes a rod body 21a, a connecting rod 21b fixed to a lower portion of the rod body 21a and inserted into the front fork sleeve 3 in a rotation fit manner; the front fork shaft 11 has a shaft main body 11a extending in the up-down direction, and a connection tip 11b extending upward from an upper end of the shaft main body 11a, a diameter of the connection tip 11b is larger than that of the shaft main body 11a, the connection tip 11b and the connection rod 21b are rotatably connected together by a connection shaft 105, and the connection tip 11b is rotatably connected to the bottom of the front fork sleeve 3 around the connection shaft 105.

In the present embodiment, as shown in fig. 5-3, 5-5 to 5-7, the lock assembly includes a lock shaft 106 detachably connected between the front fork shaft 11 and the connecting rod 105, and the axis of the lock shaft 106 is offset from the connecting shaft 105 in the horizontal direction and parallel to the axis of the connecting shaft 105. When the locking shaft 106 is inserted into the front fork shaft lever 11 and the upright lever 21 at the same time, the upright lever 21 is fixed relative to the front fork shaft lever 11, so that the two can synchronously rotate relative to the front fork sleeve 3; after the lock shaft 106 is pulled out, the front fork shaft 11 can be rotated relative to the upright 21.

The front frame 10 further includes two sets of pedal levers 9 respectively disposed on the left and right sides of the front fork 1, and the pedal levers 9 are rotatably coupled to the front fork 1 and detachably coupled to the front wheel shaft. The foot bar 9 has an open state and a folded state, when in the open state, the foot bar 9 extends along the horizontal direction, and the front wheel axle can be driven to rotate by driving the foot bar 9 to rotate so as to drive the front wheel 100 to rotate; when in the folded state, the foot bar 9 is disconnected from the front wheel shaft, and the foot bar 9 extends in the up-down direction and is folded with the front wheel 100.

The child tricycle further includes a locking mechanism for locking the tricycle in the unfolded state, and in this embodiment, specifically, the locking mechanism includes a front locking assembly (not shown) provided at the rotational connection between the front frame 10 and the main frame 30 for locking the front frame and the main frame, and a rear locking assembly (not shown) provided between the slider 7 and the main frame 30 for locking the main frame and the main frame.

Thus, when the tricycle is in the unfolded state, as shown in fig. 1 to 4, the front frame 10 is unfolded in front of the main frame 30, the two sets of rear frames 20 are respectively unfolded outward and backward at the left and right sides of the main frame 30, the two sets of foot bars 9 are respectively unfolded, a child sits on the seat 40 and holds the handle bar 2 with hands, and the two foot bars 9 drive the front wheel shaft to rotate so as to drive the tricycle to run, and simultaneously, the running direction of the front wheel 200 is controlled by rotating the handle bar 2.

When it is desired to fold the child tricycle, after the locking mechanism is unlocked, as shown in fig. 7 to 9, the pedal levers 9 on both sides are folded with respect to the front fork 1, and then the locking between the front fork 1 and the handle bar 2 is released, and the front fork 1 is rotated by 90 ° with respect to the handle bar 2, so that the front wheel 200 extends in the left-right direction, that is, the front wheel shaft is changed to extend in the front-rear direction. Subsequently, referring to fig. 10 and 11, the rear wheels 200 on both sides are driven to move forward, so that the rear struts 5 on both sides are turned and folded forward relative to the main frame 30, and in the process, the sliding member 7 moves forward along the main frame 30, drives the connecting rod 6 to move forward and gradually fold relative to the main frame 30 and the rear struts 5; at the same time, the front frame 10 is driven to turn backwards and rotate to fold relative to the main frame 30.

Finally, as shown in fig. 12 to 14, in the folded tricycle, the connecting rod 6 and the rear supporting rod 5 of each side rear frame 20 are folded relatively and are folded with the main frame 30, and the two folded rear frames 20 are respectively folded at both sides of the cross bar 4, the two rear wheels 200 are respectively folded at both left and right sides of the main frame 30, and the rear wheels 200 are located in front of the seat 40, and the disk surface of the rear wheels 200 extends downward from the rear to the front and outward. The front frame 10 is folded under the rear frame 20 and the front wheel axle 104 of the front wheel 100 is converted to extend in the up-down direction, and the front wheel 100 is positioned behind the two sets of rear wheels 200, and the handlebar 22 still remains extended in the left-right direction. Therefore, in the folded tricycle, all the rod pieces are tightly folded together, the structure is very compact, the occupied space is very small, and the tricycle is convenient for a user to daily store and carry.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a children tricycle, includes preceding frame, locates preceding wheel, the front portion of preceding frame bottom with the main frame that preceding frame is connected, setting are in seat on the main frame, and the branch is located the main frame left and right sides and with two sets of back frames that the main frame is connected, locate the back wheel of back frame bottom, its characterized in that: the rear frame on each side comprises a rear support rod and a connecting rod, the rear wheels are arranged at the bottom of the rear support rod, the upper part of the rear support rod is rotatably connected to the main frame, one end part of the connecting rod is rotatably connected to the rear support rod, and the other end part of the connecting rod can relatively rotate and can relatively slide along the front-rear direction to be connected to the main frame;

2. The children's tricycle of claim 1, wherein: the main frame is provided with a sliding part, the sliding part can be arranged on the main frame in a relative sliding manner along the front-back direction and is positioned in front of the joint of the rear supporting rod and the main frame, and the upper parts of the connecting rods on two sides are respectively and rotatably connected to the sliding part.

3. The children's tricycle of claim 2, wherein: the tricycle is characterized in that the main frame is provided with a cross rod extending in the front-back direction, the sliding piece can be arranged on the cross rod in a relative sliding mode along the length extending direction of the cross rod, when the tricycle is folded, the sliding piece slides forwards along the cross rod, and the connecting rod and the rear support rod are mutually drawn close and furled at the side portion of the cross rod.

4. The children's tricycle of claim 2, wherein: the tricycle is characterized in that the main frame is provided with a cross rod extending in the front-back direction and a mounting seat fixedly arranged at the rear part of the cross rod, the sliding part can be arranged at the bottom of the cross rod in a relative sliding mode along the length extending direction of the cross rod, the upper parts of the connecting rods are respectively in pivot connection with the left side part and the right side part of the sliding part, the upper parts of the rear supporting rods are respectively in pivot connection with the left side part and the right side part of the mounting seat, and when the tricycle is in a folded state, the connecting rods and the rear supporting rods are folded at the side parts.

5. The children's tricycle of claim 4, wherein: the mounting seat is provided with a seat body and connectors fixedly arranged on the left side and the right side of the seat body, the connectors extend forwards and downwards from the side part of the seat body, and the upper part of the rear supporting rod is pivotally connected to the connectors on the same side.

6. The children's tricycle of claim 2, wherein: on each side about the main frame, the upper portion of back branch is connected through first axle rotation ground the rear portion of main frame, the upper portion of connecting rod is in through the second axle pivot connection on the slider, the lower part of connecting rod is in through the third axle pivot connection on the back branch, the axial lead of first axle, second axle and third axle is parallel to each other, and all inwards slope the extension downwards gradually from the outside on the left and right sides direction.

7. The children's tricycle of claim 1, wherein: the seat is fixedly arranged on the main frame, when the tricycle is in a folded state, the two rear wheels are respectively folded at the left side and the right side of the main frame, and the rear wheels are positioned in front of the seat.

8. The children's tricycle of claim 1, wherein: when the tricycle is in a folded state, the front frame is folded below the rear frame, and the front wheel shaft of the front wheel extends in the vertical direction.

9. The children's tricycle of claim 1, wherein: the front frame further comprises two groups of pedal rods which are respectively arranged on the left side and the right side of the front fork, the pedal rods are rotatably connected to the front fork and detachably connected with the front wheel shaft, the pedal rods have an opening state and a folding state, and when the pedal rods are in the opening state, the pedal rods extend along the horizontal direction; when the bicycle is in a folding state, the pedal rod is disconnected from the front wheel shaft, extends along the vertical direction and is folded with the front wheel.

10. The children's tricycle of claim 1 or 9, wherein: the tricycle is characterized in that the handlebar is provided with a vertical rod and a handle rod which is fixedly arranged on the upper portion of the vertical rod and extends along the left-right direction, the upper portion of the front fork is provided with a front fork shaft rod extending along the up-down direction, the lower portion of the vertical rod and the upper portion of the front fork shaft rod are respectively and relatively rotatably connected with the front fork sleeve, the upper portion of the front fork shaft rod and the lower portion of the vertical rod are rotatably connected and locked through a locking assembly, when the tricycle is in a folded state, the front fork shaft rod and the vertical rod rotate relatively, the front fork drives the front wheel to be folded below the main frame, and the handle rod extends along the left-right direction.