CN201951637U - Tricycle for children - Google Patents

Abstract

The utility model discloses a children's tricycle, which comprises a front wheel assembly, a base frame whose front end is connected to the front wheel assembly, a left rear frame whose front end is rotatably connected to the rear end of the base frame, and a front end which is rotatably connected to the base frame The rear end of the right rear frame of the rear end portion, the rear end of the left rear frame is rotatably connected with the left rear wheel assembly, the rear end of the right rear frame is rotatably connected with the right rear wheel assembly, the left rear frame and the right The side rear frame is provided with a rear basket that can be folded and unfolded, and the rear basket includes a left side, a right side, a front side, a rear side and a bottom, and the front side, the rear side and the bottom can be Folding toward the inner area of the rear basket, the bottom includes first and second retractable plates connected to the left and right rear wheel assemblies through horizontal shafts, and the first and second retractable plates can be flipped up respectively. The rear basket has two states of folding and unfolding, and it is locked by a locking mechanism. The structure is stable, and the structure of the whole vehicle is simple, which is convenient for storage and transportation.

Description

children's tricycle

technical field

The utility model relates to a children's tricycle, in particular to a children's tricycle with a foldable rear basket.

Background technique

Most of the children's tricycles on the market today cannot fold the baskets at the rear, which makes the whole vehicle larger, inconvenient for handling and storage, and has a single function. Moreover, the structures of traditional children's tricycles are uniform More complex and more expensive.

Contents of the invention

The utility model provides a children's tricycle with a foldable rear basket between two rear wheels and low cost.

For achieving the above object, the technical scheme that the utility model adopts is:

A children's tricycle, comprising a front fork, a front wheel assembly, a handlebar capable of controlling the rotation direction of the front wheel assembly, a rear frame, a saddle, a left rear wheel assembly and a right rear wheel assembly installed on the left and right sides of the rear frame wheel assembly,

The rear frame includes a base frame whose front end is fixedly connected to the front fork, a left rear frame whose front end is rotatably connected to the rear of the base frame through a first rotating shaft, and a front end connected to the front fork. The rear part of the base frame is rotatably connected to the right rear frame through the second rotating shaft, the rear end of the left rear frame is rotatably connected to the left rear wheel assembly, and the right rear The rear end of the vehicle frame is rotatably connected to the right rear wheel assembly,

A rear basket that can be folded and unfolded is installed above the rear frame, and the rear basket includes a left side, a right side, a front side, a rear side and a bottom, and the front side The bottom, the rear side and the bottom can all be folded towards the inner area of the rear basket. The bottom includes a first retractable board and a second retractable board arranged left and right, and the left side of the first retractable board is connected to the The left wheel assembly of the left side is rotatably connected through the third rotating shaft, the right side part of the second retractable plate is rotatably connected with the right wheel assembly through the fourth rotating shaft, and the rear basket is provided with There is a locking mechanism that can lock it in the folded state and the unfolded state; wherein, the axis lines of the first and second rotation shafts are perpendicular to the horizontal plane, and the axis lines of the third and fourth rotation shafts are located at within the horizontal plane.

Preferably, the left rear frame and the right rear frame each include a main rod and an auxiliary rod; further, the main rod and the auxiliary rod on the same side are distributed up and down.

Preferably, the front side and the back side are made of soft cloth or soft plastic.

Preferably, the locking mechanism is arranged at the bottom, when the rear basket is in the unfolded state, the first folding plate and the second folding plate are located in the horizontal plane, the locking mechanism will The first retractable plate and the second retractable plate are locked in this state; when the rear basket is in the folded state, the first retractable plate and the second retractable plate respectively rotate around the third rotating shaft and the fourth rotating shaft are rotated into the vertical plane, the first retractable plate and the second retractable plate are close to each other and locked by the locking structure in this state.

Preferably, the left rear wheel assembly and the right rear wheel assembly each include a wheel, a wheel shaft and a bushing, and the third rotating shaft and the fourth rotating shaft are respectively connected to the corresponding bushings.

Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art: the rear basket has two states of folding and unfolding, and, in the two states of folding and unfolding, the left rear wheel and the right rear wheel They are all parallel to each other, that is, they can ride normally in both states. At the same time, there are locking mechanisms to lock the rear basket in the corresponding state in both the folded state and the unfolded state, so that the whole bike is in a stable state. The frame of the children's tricycle is only composed of five rods: the frame, the left main pole, the left auxiliary pole, the right main pole and the right auxiliary pole. The structure is simple, the structure is stable, the weight of the whole vehicle is small, and it is easy to carry and storage.

Description of drawings

Accompanying drawing 1 is a kind of three-dimensional schematic diagram of children's tricycle of the present utility model (back basket is expanded);

Accompanying drawing 2 is the rear view schematic diagram of accompanying drawing 1;

Accompanying drawing 3 is the bottom view schematic diagram of accompanying drawing 1;

Accompanying drawing 4 is another three-dimensional schematic diagram of the children's tricycle of the present invention (the rear basket is folded);

Accompanying drawing 5 is the rear view schematic diagram of accompanying drawing 4;

Accompanying drawing 6 is the schematic bottom view of accompanying drawing 4.

In the accompanying drawings: 1, front fork; 2, front wheel; 3, front wheel crankshaft; 4, pedal; 5, handlebar; 6, saddle; 7, base frame; 8, first shaft; 9, second Rotating shaft; 10, rear basket; 101, left side; 102, right side; 103, front side; 104, rear side; 105, bottom; 106, first folding board; 107, second folding board; 11. The third rotating shaft; 12. The fourth rotating shaft; 13. Left main rod; 14. Left auxiliary rod; 15. Right main rod; 16. Right auxiliary rod; 17. Locking mechanism; 18. Left rear wheel ; 19, the right rear wheel; 20, the left rear wheel bushing; 21, the right rear wheel bushing.

Detailed ways

The utility model will be further described below in conjunction with the embodiment shown in the accompanying drawings:

As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, children's tricycle of the present utility model comprises front fork 1, front wheel assembly, the handlebar 5 that can control the rotation direction of front wheel assembly, rear vehicle frame, saddle 6 1. The left rear wheel assembly and the right rear wheel assembly installed on the left and right sides of the rear frame. It includes a base frame 7 whose front end is connected to the front fork 1, a left side rear frame that is rotatably connected to the rear end of the base frame 7 through a first rotating shaft 8 arranged in a direction perpendicular to the horizontal plane, and a The second rotating shaft 9 is rotatably connected to the right side rear vehicle frame of the rear end portion of the base frame 7, the rear part of the left side rear vehicle frame is rotatably installed on the left rear wheel assembly, and the rear part of the right side rear vehicle frame is rotatably installed on the right side. On the rear wheel assembly, the left rear wheel assembly includes the left rear wheel 18, the left rear wheel shaft and the left rear wheel bushing 20, the right side of the left rear wheel bushing 20 is provided with a third rotating shaft 11 positioned in the front and rear direction in the horizontal plane, and the right rear The wheel assembly includes a right rear wheel 19, a right rear wheel shaft and a right rear wheel bushing 21, and the left side of the right rear wheel bushing 21 is provided with a fourth rotating shaft 12 located in the front and rear directions in the horizontal plane;

A rear basket 10 that can be folded and unfolded is installed on the rear vehicle frame. , the rear side portion 104 and the bottom portion 105 can be folded towards the inside of the rear basket 10, the bottom portion 105 includes a first foldable plate 106 and a second foldable plate 107 arranged left and right, and the left side of the first foldable plate 106 passes through the third rotating shaft 11 is rotationally connected, the right side part of the second retractable plate 107 is rotationally connected by the fourth rotating shaft 12, and the first retractable plate 106 can be turned around the third rotating shaft 11 to the upper left to the position where it fits the left side part 101, and the second The second folding plate 107 can turn around the fourth rotating shaft 12 to the upper right to the position where it fits with the right side part 102;

The left side rear vehicle frame comprises the left main rod 13 that one end is rotatably connected by the first rotating shaft 8 and the left auxiliary rod 14 that one end is rotatably connected by the first rotating shaft 8, the other end of the left main rod 13, the left auxiliary rod 14 The other ends of the other ends are connected to the left rear wheel bushing 20 respectively; , the other end of the right main rod 15 and the other end of the right auxiliary rod 16 are connected to the right rear wheel bushing 21 at rotational points respectively, the left main rod 13 and the left auxiliary rod 14 are distributed up and down, the right main rod 15 and The right auxiliary rod 16 is distributed up and down;

The bottom 105 is provided with a locking mechanism 17. When the rear basket 10 is in the locked state, the first retractable plate 106 and the second retractable plate 107 are located in the horizontal plane, that is, the first retractable plate 106 and the second retractable plate 107 are supported on the left rear Between the wheel 18 and the right rear wheel 19, the locking mechanism 17 locks the first foldable plate 106 and the second foldable plate 107 in a horizontal state; when the rear basket 10 is in the folded state, the first foldable plate 106 and the second foldable plate The two folding plates 107 are turned around the third rotating shaft 11 and the fourth rotating shaft 12 respectively to the positions in the vertical plane that fit the left side part 101 and the right side part 102 respectively, and pass through the left rear frame and the right side The rear frame rotates around the first rotating shaft 8 and the second rotating shaft 9 in a direction close to each other, so that the left side part 101, the right side part 102, the first folding board 106 and the second folding board 107 are close to each other, so that The rear portion of the children's tricycle is folded, and now the left rear wheel 18 and the right rear wheel 19 are kept parallel to each other, as shown in accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6, after folding, the front side of the rear basket 10 part 103, rear side part 104 and bottom part 105 are all folded between the left side part 101 and the right side part 102, and the first folding board 106 and the second folding board 107 are sandwiched between the left side part 101 and the right side part 102, At this moment, lock between the rear vehicle frame on the left side and the rear vehicle frame on the right side by the locking mechanism 17 .

The aforementioned front side portion 103 and rear side portion 104 can be made of soft cloth or soft plastic.

Compared with the prior art, the utility model has two states: the rear basket 10 has two states of folding and unfolding, and, in these two states, the left rear wheel 18 and the right rear wheel 19 are all parallel to each other, that is, two All can ride normally under the state, simultaneously, all have locking mechanism 17 and this rear basket 10 is locked in the corresponding state in folded state and unfolded state, is that the whole vehicle is in a stable state, and the vehicle frame of this children's tricycle only It is composed of five rods including the base frame 7, the left main rod 13, the left auxiliary rod 14, the right main rod 15 and the right auxiliary rod 16. The structure is simple, the structure is stable, the weight of the whole vehicle is small, and it is convenient for transportation and storage. It also reduces the cost.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (6)

1. A children's tricycle, comprising a front fork, a front wheel assembly, a handlebar capable of controlling the direction of rotation of the front wheel assembly, a rear frame, a saddle, a left rear wheel assembly mounted on the left and right sides of the rear frame and The right rear wheel assembly is characterized in that: the rear frame includes a base frame whose front end is fixedly connected to the front fork, and a left wheel whose front end is rotatably connected to the rear of the base frame through a first rotating shaft. The side rear frame, the front end and the right rear frame that are rotatably connected to the rear of the base frame through the second rotating shaft, and the rear end of the left rear frame is rotatably connected to the left rear wheel On the assembly, the rear end of the right rear frame is rotatably connected to the right rear wheel assembly; a rear basket that can be folded and unfolded is installed above the rear frame, and the The rear basket includes a left side, a right side, a front side, a rear side and a bottom, and the front side, the rear side and the bottom can all be folded toward the inner area of the rear basket, and the bottom includes The first retractable plate and the second retractable plate arranged left and right, the left part of the first retractable plate and the left wheel assembly are rotatably connected through the third rotating shaft, and the right side of the second retractable plate The side part is rotationally connected with the right side wheel assembly through the fourth rotating shaft, and the rear basket is provided with a locking mechanism capable of locking it in a folded state and an unfolded state; wherein, the first rotating shaft The axis lines of the second rotating shaft and the second rotating shaft are perpendicular to the horizontal plane, and the axis centers of the third rotating shaft and the fourth rotating shaft are located in the horizontal plane. 2. The children's tricycle according to claim 1, characterized in that: said left rear frame and right rear frame both comprise a main rod and an auxiliary rod. 3. The children's tricycle according to claim 2, characterized in that: the main pole and the auxiliary pole on the same side are distributed up and down. 4. The children's tricycle according to claim 1, characterized in that: said front side and rear side are made of soft cloth or soft plastic. 5. The children's tricycle according to claim 1, wherein the locking mechanism is arranged at the bottom, and when the rear basket is in the unfolded state, the first folding plate and the second folding plate The two foldable plates are located in the horizontal plane, and the locking mechanism locks the first foldable plate and the second foldable plate in this state; when the rear basket is in the folded state, the first foldable plate and the second foldable plate are locked in this state; The second retractable plate rotates around the third rotating shaft and the fourth rotating shaft to the vertical plane respectively, and the first retractable plate and the second retractable plate approach each other and are locked by the locking structure in this state . 6. The children's tricycle according to claim 1, characterized in that: the left rear wheel assembly and the right rear wheel assembly each comprise a wheel, a wheel shaft and an axle sleeve, and the third and fourth rotating shafts are respectively connected to the The corresponding shaft sleeves are connected.

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