CN209064267U - A kind of child's tricycle - Google Patents

Abstract

The utility model discloses a kind of child's tricycle, including main body of vehicle frame, Rear frame, front fork assembly, wheel assembly set on the lower part of Rear frame, front component set on the lower part of front fork assembly and the handlebar assembly on the top set on front fork assembly, the top of Rear frame is connect with main body of vehicle frame, main body of vehicle frame includes bicycle beam component, sliding part, support component and first connecting rod, the front of bicycle beam component and front fork assembly are rotatablely connected, sliding part is connect with bicycle beam component slippage along the longitudinal direction, support component is rotatablely connected around the second axis and bicycle beam component, support component rotates with first connecting rod around first axle and connect, sliding part rotates with first connecting rod around the 5th axis and connect, first axle, second axis and the 5th axis are parallel to each other；Child's tricycle support component in the utility model offer can fold, and structure is simple, and folding procedure is easy.

Description

Children tricycle

Technical Field

The utility model belongs to the technical field of the bassinet and specifically relates to a children tricycle is provided.

Background

In the prior art, a child tricycle with a stroller function comprises a backrest and a push rod for an adult to operate, for example, a child tricycle disclosed in CN201484574U comprises a frame, wheels, a head and a push rod, wherein the wheels, the head and the push rod are arranged on the frame, and a side bracket consisting of a basket rod, a front bracket, a rear bracket and the push rod forms a four-bar linkage mechanism so as to realize folding, thereby realizing reduction of the height of the whole tricycle in a folded state. However, the side brackets of the child tricycle are arranged symmetrically left and right, so that the overall structure of the tricycle is complex; meanwhile, the frame of the children tricycle cannot be folded, so that the height and the whole volume of the whole children tricycle are still large after being folded.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a simple structure's children tricycle realizes the folding of back, and then reduces children tricycle's height.

In order to solve the problem, the utility model provides a children tricycle, including frame main part, back frame, with frame main part rotates the front fork subassembly of connection, locates the rear wheel subassembly of the lower part of back frame, locates the front wheel subassembly of the lower part of front fork subassembly and locating the handlebar assembly on the upper portion of front fork subassembly, the upper portion of back frame with frame main part connects, frame main part includes:

the front part of the beam assembly is rotationally connected with the front fork assembly;

the sliding piece is connected with the vehicle beam assembly in a sliding mode along the front-back direction;

the support assembly is rotatably connected with the vehicle beam assembly around a second shaft;

the support assembly is rotatably connected with the first connecting rod around a first shaft, the sliding piece is rotatably connected with the first connecting rod through a fifth shaft, and the length direction of the first shaft, the length direction of the second shaft and the length direction of the fifth shaft are parallel to each other.

The utility model discloses in, one side of front wheel subassembly is the place ahead, and one side of rear wheel subassembly is the rear. The two groups of rear frames and the rear wheel assemblies are symmetrically arranged on the left side and the right side relative to the vehicle beam assembly respectively.

In a specific embodiment, the children's tricycle has an unfolded state and a folded state, and the sliding piece is positioned at the rear part of the beam assembly when the children's tricycle is positioned in the unfolded state;

when the child tricycle is converted from the unfolding state to the folding state, the supporting assembly is turned forwards and downwards, and the sliding piece slides forwards along the tricycle beam assembly;

when the child tricycle is in a folded state, the sliding piece is located at the front part of the vehicle beam assembly, and the supporting assembly is close to the vehicle beam assembly.

In a specific embodiment, the child tricycle further includes a second connecting rod, the beam assembly is rotatably connected to the second connecting rod through a third axis, the rear frame is rotatably connected to the second connecting rod through a fourth axis, an upper portion of the rear frame is rotatably connected to the sliding member around a sixth axis, a length direction of the third axis, a length direction of the fourth axis, and a length direction of the sixth axis are parallel to each other, and a length direction of the first axis is oblique to a length direction of the third axis.

In a specific embodiment, the vehicle beam assembly comprises a rear beam mechanism and a front beam mechanism, and the rear beam mechanism and the front beam mechanism are rotatably connected through a seventh shaft.

In a specific embodiment, a vehicle beam locking mechanism for locking the rear beam mechanism and the front beam mechanism is arranged between the rear beam mechanism and the front beam mechanism, the sliding piece is matched with the vehicle beam locking mechanism, and when the sliding piece slides to the front part of the rear beam mechanism, the vehicle beam locking mechanism is unlocked.

In a specific embodiment, the tricycle further comprises a push rod assembly fixedly connected with the support assembly.

In a specific embodiment, the push rod assembly comprises an upper push rod and a lower push rod, the upper push rod is connected with the lower push rod in a sliding mode along the length direction of the lower push rod, and the lower portion of the lower push rod is fixedly connected with the support assembly in a detachable mode.

In a specific embodiment, the children's tricycle further comprises a saddle fixedly connected with the beam assembly; or,

the saddle is fixedly connected with the sliding piece.

In a specific embodiment, the handlebar assembly is rotatably connected with the front fork assembly, and is horizontally distributed when the children tricycle is in an unfolded state; when the child tricycle is converted from the unfolding state to the folding state, the handlebar assembly is turned downwards and is close to two sides of the front fork assembly.

In a particular embodiment, the support assembly includes a backrest portion on which the back of the child rests.

The beneficial effects of the utility model are that:

compared with the prior art, the utility model provides a children's tricycle drives supporting component's folding through the slider that sets up on car roof beam subassembly, and overall structure is simple and folding process is easy and simple to handle.

Meanwhile, the rear frame is driven by the sliding part to rotate towards the oblique rear upper part, namely, the rear wheel components on the two sides are closed in opposite directions, and the transverse width and the vertical height of the folded child tricycle are reduced. Meanwhile, in order to further reduce the volume of the child tricycle in a folded state, the length of the front part in the width direction can be reduced by downwards folding the handlebar assembly; the push rod assembly is provided with an upper push rod and a lower push rod which are arranged in a mutually sliding manner, so that the length of the folded children tricycle in the front-back direction can be reduced; the front fork assembly integrally rotates around the seventh shaft to the rear lower part and is close to the rear beam, so that the height of the folded child tricycle can be further reduced; the beam locking mechanism between the front beam mechanism and the rear beam mechanism is unlocked through sliding of the sliding piece, and the unlocking process is simple and convenient to operate. The folded children tricycle still can stand up to the ground through the front wheel assembly and the rear wheel assembly, and the problem of cleaning caused by the fact that other positions of the children tricycle are in contact with the ground is solved. This practical novel well children's tricycle overall structure is simple and folding process is easy and simple to handle, is showing the volume that reduces children's tricycle when not using.

Drawings

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

fig. 2 is a top view of the child tricycle according to the present invention in an expanded state;

fig. 3 is a side view of the child tricycle according to the present invention in a first state when it is converted between the unfolded state and the folded state;

fig. 4 is a first state top view of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 5 is a side view of the child tricycle of the present invention in a second state when it is converted between the unfolded state and the folded state;

fig. 6 is a second state top view of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 7 is a side view of a third state of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 8 is a top view of a third state of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 9 is a side view of a fourth state of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 10 is a fourth state top view of the child tricycle according to the present invention when it is converted between the unfolded state and the folded state;

fig. 11 is a side perspective view of the child tricycle of the present invention in a folded state;

fig. 12 is a top view of the child tricycle according to the present invention in a folded state.

In the drawings, 1-a front fork assembly; 2-a front wheel assembly; 3-treading; 4-a handlebar assembly; 5-seventh axis; 6-saddle seat; 7-a first link; 8-a support assembly; 9-a handle; 10-push up rod; 11-lower push rod; 12-a slide; 13-rear frame; 14-a second link; 15-a rear wheel assembly; 16-push handle unlock button; 17-a handlebar unlock button; 18-a first shaft; 19-a second axis; 20-a third axis; 21-fourth axis; 22-fifth axis; 23-sixth axis; 24-a base; 25-a back rest mechanism; 26-front beam mechanism.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Detailed Description

The invention will be further understood from the specific examples of the invention given below, which are not intended to limit the invention.

As shown in fig. 1-6, the present embodiment provides a tricycle for children, including a frame main body, a rear frame 13, a front fork assembly 1 rotatably connected to the frame main body, a rear wheel assembly 15 disposed at a lower portion of the rear frame 13, a front wheel assembly 2 disposed at a lower portion of the front fork assembly 1, a handlebar assembly 4 disposed at an upper portion of the front fork assembly 1, and a locking assembly for locking the tricycle for children in an unfolded state, wherein the frame main body includes a frame member, a slider 12, a support assembly 8, and a first connecting rod 7, a pedal 3 is disposed at a position of a wheel rotating shaft of the front wheel assembly 2 for supporting feet of children, and the front wheel assembly 2 rolls forward and/or backward by being stepped by the children, so that the tricycle for children moves forward and/or backward; the support assembly 8 is provided with a backrest portion for providing support to the back of the child; wherein:

the front part of the beam assembly is rotatably connected with the front fork assembly 1, and the length direction of a rotating shaft between the beam assembly and the front fork assembly 1 is downward, so that the direction control of children is facilitated; the sliding member 12 is slidably connected with the vehicle beam assembly along the front-back direction, the backrest assembly 8 is rotatably connected with the vehicle beam assembly around a second shaft 19, one end of the first connecting rod 7 is rotatably connected with the backrest assembly 8 around a first shaft 18, the other end of the first connecting rod 7 is rotatably connected with the sliding member 12 around a fifth shaft 22, the length direction of the first shaft 18, the length direction of the second shaft 19 and the length direction of the fifth shaft 22 are parallel to each other, in the embodiment, when the child tricycle is supported on the ground, the length direction of the first shaft 18, the length direction of the second shaft 19 and the length direction of the fifth shaft 22 are parallel to the horizontal plane, and therefore, the rotation plane of the push rod assembly is located in the vertical plane. The first link 7 includes a first section connected to the slider 12 and a second section connected to the support member 8, and the length direction of the first section intersects the length direction of the second section such that the entire first link 7 has an "L" shape.

The connection mode of the upper part of the rear frame 13 and the frame main body can be fixed connection or rotation connection, so long as the child tricycle can stably stand on the ground. For example, the rear frame 13 may be fixedly connected to the rear portion of the beam assembly, in which case the rear frame 13 cannot be folded; the rear frame 13 may also be pivotally connected to the rear portion of the beam assembly, and the rear frame 13 may be folded by being turned over forward or backward.

In the present embodiment, the rear frame 13 is rotatably connected to the sliding member 12, and specifically, the children's tricycle further includes a second connecting rod 14, one end of the second connecting rod 14 is rotatably connected to the frame member assembly about a third axis 20, the other end of the second connecting rod 14 is rotatably connected to the rear frame 13 about a fourth axis 21, an upper portion of the rear frame 13 is rotatably connected to the sliding member 12 about a sixth axis 23, a length direction of the third axis 20, a length direction of the fourth axis 21, and a length direction of the sixth axis 23 are parallel to each other, and a length direction of the first axis 18 intersects a length direction of the third axis 20. Thus, the plane of rotation of the rear frame 13 intersects the plane of rotation of the push rod assembly.

In this embodiment, the vehicle beam assembly includes a rear beam mechanism 25 and a front beam mechanism 26, the rear beam mechanism 25 includes a base 24 disposed at a rear end thereof, the rear beam mechanism 25 is rotatably connected to the front beam mechanism 26 about a seventh axis 5, and a length direction of the seventh axis 5 is parallel to a horizontal plane. The front beam mechanism 26 includes a front stem through which the front fork assembly 1 is inserted and a front beam intersecting the front stem. The sliding member 12 is a sliding sleeve sleeved on the back beam mechanism 25. A rotation limiting mechanism is provided between the rear beam mechanism 25 and the front beam, so that when the length direction of the front beam is the same as or parallel to the length direction of the rear beam mechanism 25, the front beam can only rotate downward and rearward relative to the rear beam mechanism 25.

In a specific embodiment, a beam locking mechanism cooperating with the slider 12 is disposed between the rear beam mechanism 25 and the front beam mechanism 26, the beam locking mechanism can be disposed in the rear beam mechanism 25, a beam button for controlling the beam locking mechanism is disposed on a front side wall of the rear beam mechanism 25, when the slider 12 slides to the front of the rear beam mechanism 25, the beam button is pressed by the slider 12, the beam locking mechanism is unlocked, and the front beam mechanism 26 can rotate relative to the rear beam mechanism 25; when the slider slides away from the front of the rear beam mechanism, the slider 12 moves away from the beam button, the beam button pops up under the action of the spring force, and the beam lock mechanism is locked, and the front beam mechanism 26 and the rear beam mechanism 25 are locked.

In this embodiment, the tricycle further includes a push rod assembly and a saddle 6, wherein the push rod assembly is detachably and fixedly connected with the support assembly 8 to form a whole. In this embodiment, the lower portion of the push rod assembly is inserted into the mounting hole of the lower portion of the support assembly 8. The saddle 6 is fixedly attached to a beam assembly or slide 12. In this embodiment, the saddle 6 is fixedly attached to the back beam mechanism 25, and the saddle 6 does not rotate or move relative to the back beam mechanism 25 during the entire folding process.

In the present embodiment, the handle bar assembly 4 is rotatably connected to the front fork assembly 1, and the length direction of the rotation axis between the handle bar assembly 4 and the front fork assembly 1 is distributed along the front-rear direction. The push rod assembly comprises an upper push rod 10, a lower push rod 11 and a handle 9 arranged at the top of the upper push rod 10, wherein the upper push rod 10 is connected with the lower push rod 11 in a sliding mode along the length direction of the lower push rod 11.

The locking assembly further comprises a handlebar locking mechanism for locking handlebar assembly 4 and a frame locking mechanism for locking the frame body, the handlebar locking mechanism comprises a handlebar unlocking button 17 arranged on the front fork assembly 1, and the other parts of the handlebar locking mechanism are arranged in the inner cavity of the pipe fitting of the front fork assembly 1.

One particular frame locking mechanism includes a handle release button 16 disposed on the handle 9, with the remainder of the frame locking mechanism disposed in the tubular cavity of the push rod assembly. A specific unlocking mode is that after the handle unlocking button 16 is pressed, the upper push rod 10 and the lower push rod 11 are unlocked, and when the upper push rod 10 and the lower push rod 11 are overlapped most, the upper push rod 10 contacts the pressing part inside the lower push rod 11, so that the sliding of the sliding part 12 and the rotation of the supporting component 8 are unlocked. Another specific unlocking manner is that, when the handle unlocking button 16 is pressed, the sliding of the unlocking slider 12 and the rotation of the support member 8 are unlocked directly.

Another specific frame locking mechanism is that when the push rod assembly is removed from the child tricycle, an unlocking button is disposed below the support assembly 8 or on the frame assembly, and the sliding of the sliding member 12 and the rotation of the support assembly 8 can be unlocked by pressing the unlocking button. The specific structure of the handlebar locking mechanism and the frame locking mechanism will not be described in detail, and the working principle thereof will be described in detail below.

The children tricycle in the embodiment comprises a folding state and an unfolding state,

when the child tricycle is in the unfolded state, as shown in fig. 1-2, the sliding member 12 is located at the rear of the rear beam mechanism 25 in the beam assembly, the handlebar assembly 4 and the saddle 6 are horizontal, the push rod assembly is in the longest extended state, and the support assembly 8 is also in the upright state, so that the back of the child can be reliably and comfortably supported. The rear frames 13 at the two sides are far away from each other, the two rear wheel assemblies 15 are parallel to each other and far away from each other, and the front wheel assembly 2 and the rear wheel assemblies 15 are abutted against the ground, so that the whole children tricycle is supported.

When the child tricycle is converted from the unfolded state to the folded state, as shown in the first state shown in fig. 3-4, the handlebar unlocking button 17 is pressed to unlock the handlebar assembly 4 from the unfolded state, and the handlebar assemblies 4 on the two sides are respectively turned over downwards, so that the handlebar assembly 4 and the front fork assembly 1 are close to each other; in the second state as shown in fig. 5-6, the push handle unlock button 16 is pressed, and the upper push rod 10 is pushed downward and inserted into the lower push rod 11.

Further, the push rod assembly is rotated forward and downward, the slider 12 is driven by the first connecting rod assembly 7 to slide forward along the length direction of the rear beam mechanism 25, the slider 12 drives the two rear frames 13 to move forward, each rear frame 13 rotates backward and upward, and the two rear wheel assemblies 15 move in opposite directions, so that the tricycle is in the third state as shown in fig. 7-8. In some embodiments, when the saddle 6 is fixedly attached to the slide 12, the saddle 6 slides forward along with the slide 12.

Continuing to rotate the push rod assembly forward and downward, when the child tricycle is in the fourth state as shown in fig. 9-10, the slide member 12 is located at the front of the rear beam mechanism 25, and the beam lock mechanism is unlocked, and the front beam mechanism 26 can rotate relative to the rear beam mechanism 25 about the seventh shaft 5; the push rod assembly is close to the vehicle beam assembly, the rear frame 13 is close to the vehicle beam assembly and is positioned below the vehicle beam assembly, the planes of the two rear wheel assemblies 15 are intersected and close to each other, and the support assembly 8 is attached to the saddle 6.

When the stroller has a fourth state, which is converted to the folded state shown in fig. 11-12, the front fork assembly 1 and the front beam mechanism 26 are rotated together around the seventh shaft 5 toward the rear and downward direction until the front fork assembly 1 and the front beam assembly are close to each other, the rear frame 13 is located between the front fork assembly 1 and the front beam assembly, the end of the handle 9 away from the rear wheel assembly 15 is flush or substantially flush with the end of the front fork assembly 1 away from the front wheel assembly 2, and the volume of the child tricycle is at a minimum.

Compared with the prior art, the children tricycle that this embodiment provided realizes supporting component 8 and rear wheel subassembly 15's folding through slider 12 that sets up on the roof beam subassembly, drives back frame 13 through slider 12 simultaneously and rotates to the back top that inclines, has realized simultaneously that the rear wheel subassembly 15 of both sides draws close in opposite directions promptly, has reduced the lateral width and the vertical height of the children tricycle of fold condition simultaneously. Meanwhile, in order to further reduce the volume of the child tricycle in the folded state, the length of the front part in the width direction can be reduced by folding the handlebar assembly 4 downwards; the push rod component is provided with an upper push rod 10 and a lower push rod 11 which are arranged in a mutually sliding way, so that the length of the folded children tricycle in the front-back direction can be reduced; the front fork assembly 1 integrally rotates around the seventh shaft 5 to the rear lower part and is close to the rear beam, so that the height of the folded child tricycle can be further reduced; the sliding of the sliding member 12 unlocks the vehicle beam locking mechanism between the front beam mechanism 26 and the rear beam mechanism 25, and the unlocking process is easy and convenient to operate. The folded children tricycle still can stand up to the ground through the front wheel assembly 2 and the rear wheel assembly 15, and the problem of cleaning caused by the fact that other positions of the children tricycle are in contact with the ground is solved. The child tricycle in the embodiment is simple in overall structure, simple and convenient to operate in the folding process, and capable of remarkably reducing the size of the child tricycle when the child tricycle is not used.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

1. The utility model provides a children tricycle, includes frame main part, back frame (13), front fork subassembly (1), locates rear wheel subassembly (15) of the lower part of back frame (13), locates front wheel subassembly (2) of the lower part of front fork subassembly (1) and locate handlebar assembly (4) on the upper portion of front fork subassembly (1), the upper portion of back frame (13) with the frame main part is connected, its characterized in that, the frame main part includes:

the front part of the beam component is rotationally connected with the front fork component (1);

a slider (12), the slider (12) being slidably connected to the vehicle beam assembly in a fore-and-aft direction;

a support assembly (8), the support assembly (8) being rotatably connected to the vehicle beam assembly about a second axis (19);

the support assembly (8) is rotatably connected with the first connecting rod (7) around a first shaft (18), the sliding piece (12) is rotatably connected with the first connecting rod (7) through a fifth shaft (22), and the length direction of the first shaft (18), the length direction of the second shaft (19) and the length direction of the fifth shaft (22) are parallel to each other.

2. The children's tricycle of claim 1, wherein: the slide (12) is located at the rear of the beam assembly when the child tricycle is in the unfolded state;

when the child tricycle is converted from the unfolding state to the folding state, the supporting assembly (8) is turned forwards and downwards, and the sliding piece (12) slides forwards along the beam assembly;

when the child tricycle is in a folded state, the sliding part (12) is located at the front part of the vehicle beam assembly, and the supporting assembly (8) is close to the vehicle beam assembly.

3. The children's tricycle of claim 1, wherein: the children tricycle further comprises a second connecting rod (14), the beam assembly is connected with the second connecting rod (14) through a third shaft (20) in a rotating mode, the rear frame (13) is connected with the second connecting rod (14) through a fourth shaft (21) in a rotating mode, the upper portion of the rear frame (13) is connected with the sliding piece (12) through a sixth shaft (23) in a rotating mode, the length direction of the third shaft (20), the length direction of the fourth shaft (21) and the length direction of the sixth shaft (23) are parallel to each other, and the length direction of the first shaft (18) is oblique to the length direction of the third shaft (20).

4. The children's tricycle of claim 1, wherein: the vehicle beam assembly comprises a rear beam mechanism (25) and a front beam mechanism (26), wherein the rear beam mechanism (25) is rotatably connected with the front beam mechanism (26) through a seventh shaft (5).

5. The children's tricycle of claim 4, wherein: a vehicle beam locking mechanism for locking the rear beam mechanism (25) and the front beam mechanism (26) is arranged between the rear beam mechanism (25) and the front beam mechanism (26), the sliding piece (12) is matched with the vehicle beam locking mechanism, and when the sliding piece (12) slides to the front part of the rear beam mechanism (25), the vehicle beam locking mechanism is unlocked.

6. The children's tricycle of claim 1, wherein: the children tricycle further comprises a push rod assembly, and the push rod assembly is fixedly connected with the supporting assembly (8).

7. The children's tricycle of claim 6, wherein: the push rod assembly comprises an upper push rod (10) and a lower push rod (11), the upper push rod (10) is arranged along the length direction of the lower push rod (11) and is in sliding connection with the lower push rod (11), and the lower portion of the lower push rod (11) is fixedly connected with the support assembly (8) in a detachable mode.

8. The children's tricycle of claim 1, wherein: the children tricycle further comprises a saddle (6), and the saddle (6) is fixedly connected with the beam assembly; or,

the saddle (6) is fixedly connected with the sliding piece (12).

9. The children's tricycle of claim 1, wherein: the handlebar assembly (4) is rotationally connected with the front fork assembly (1), and when the child tricycle is in an unfolded state, the handlebar assembly (4) is horizontally distributed;

when the child tricycle is converted from the unfolding state to the folding state, the handlebar assembly (4) is turned downwards and is close to the two sides of the front fork assembly.

10. The children's tricycle of claim 1, wherein: the support assembly (8) includes a backrest portion on which the back of the child rests.