CN110723192A

CN110723192A - Multifunctional baby carriage

Info

Publication number: CN110723192A
Application number: CN201910666027.7A
Authority: CN
Inventors: 芦立娟; 鲁晓东; 夏超凡; 张松然; 梁卓超; 李佳文
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-01-24

Abstract

The invention discloses a baby carriage, and aims to provide a multifunctional baby carriage which not only has the functions of a common baby carriage, but also can meet the riding requirements of people, is convenient to fold and is comfortable to ride. It includes two front wheels, a rear wheel, frame and baby seat, the frame includes the handlebar, first pipe and whippletree, the whippletree middle part is equipped with a rotatable camber beam, all be equipped with the through-hole that the size is the same on the lateral wall of first pipe and camber beam, be equipped with the U type ring of diameter and through-hole aperture adaptation on the camber beam, the U type ring is worn to establish in the through-hole, the one end that the whippletree was kept away from to the camber beam is equipped with sprocket group, sprocket group includes big sprocket, little sprocket and chain, sprocket group outside is equipped with the shell, be equipped with the seat pipe with shell swivelling joint on the shell, seat pipe one end is connected with the shell. The chain wheel set, the seat tube and the seat cushion can rotate to enable the baby carriage to be switched into a bicycle form for people to ride, and the application range of the baby carriage is enlarged.

Description

Multifunctional baby carriage

Technical Field

The invention relates to the field of baby strollers, in particular to a multifunctional baby stroller capable of being ridden by a person.

Background

Most families have idle strollers, even more than one, which is a pity to discard; no waste, resource waste and land occupation are avoided. How to design a section and baby carriage, mother ride baby carriage, child and bike, children's bicycle still can switch into the multi-functional folding car of electric bicycle as an organic whole when necessary, avoid the limitation of most baby carriages single function in the existing market to satisfy the demand that children grow up in each period of family.

Chinese patent publication No. CN109050643A, published 2018, 12 and 21, entitled "baby stroller convertible into a bicycle", discloses a baby stroller convertible into a bicycle, including a frame, a seat cushion, two front wheels, a rear wheel, a main frame, two front wheel holders, a rear wheel holder, a crossbar, a turnover mechanism, and a rotation mechanism, wherein the rotation of the seat holder by the rotation mechanism and the turnover of the main frame by the turnover mechanism realize the switching between pushing and riding states of a baby tricycle, so that the baby stroller is more suitable for pushing a baby, and can also be ridden. The baby stroller capable of being converted into the bicycle has different conversion modes, so that the bicycle can be converted into riding and pushing states. The seat tube below the seat cushion is in a pushing state after descending, and the seat tube can knock on the ground to influence the forward movement of the cart. In a riding state, the distance between the seat fixing frame and the handlebar keeps a certain distance and cannot be adjusted, so that people with different body conditions cannot ride the bicycle, and the bicycle is not comfortable to ride.

Disclosure of Invention

The multifunctional baby carriage overcomes the defects that most of the existing baby carriages have single functions and are only used for providing convenience for outdoor activities of babies, and the multifunctional baby carriage has the functions of a common baby carriage, can meet the riding requirements of people, is convenient to fold, comfortable to ride and stable in structure.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a multifunctional baby carriage comprises two front wheels, a rear wheel, a frame and a baby seat fixed on the frame, wherein the frame comprises a handlebar, a first pipe vertically arranged and a cross bar horizontally arranged, the middle part of the cross bar is provided with a bent beam capable of rotating around a center shaft of the cross bar, through holes with the same size are formed in the side wall of the first pipe and the side wall of the bent beam, the bent beam is provided with a U-shaped ring with the diameter matched with the aperture of the through holes, the U-shaped ring is arranged in the through holes in a penetrating manner, one end of the bent beam far away from the cross bar is provided with a chain wheel set, the chain wheel set is positioned between the front wheels and the rear wheels and is arranged under the baby seat, the chain wheel set comprises a large chain wheel, a small chain wheel and a chain, the large chain wheel is arranged at one end of the chain wheel set close to the front wheels, the small chain wheel is arranged near the rear wheels and coaxially rotates with the rear wheels, a, the other end of the seat tube is provided with a seat cushion.

The Head Tube (Head Tube) included in the frame is generally an intermediate connecting structure for the handlebar and the front fork. The handlebar is generally T-shaped, the handlebar horizontally and transversely extends to form a Grip (Grip), the handlebar vertically and downwards extends to form a handlebar vertical pipe, and the handlebar vertical pipe is generally arranged in the head pipe in a penetrating mode. The connection mode of the handlebar and the head pipe is also similar, the lower half part of the handle vertical pipe is arranged in the head pipe in a penetrating mode, and the handle vertical pipe can rotate freely in the head pipe.

The through holes are formed in the side wall of the bent beam and the side wall of the first pipe and are used for inserting the U-shaped ring. The U-shaped ring is generally made of galvanized iron materials, provides certain strength and is low in production cost. After two ends of the U-shaped ring in the opening direction are respectively inserted into the two through holes, the position relation between the bent beam and the first pipe is limited, relative displacement cannot occur due to the limiting effect of the U-shaped ring, and the stability of the whole vehicle structure is improved.

Because the camber beam can rotate around the central axis of the cross bar, the position relation between the camber beam and the head pipe has two forms.

In the first mode: the camber beam and the chain wheel group connected with the camber beam are both positioned below the handlebar, the chain wheel group and the camber beam are respectively arranged at the front side and the rear side of the handlebar, and the seat cushion (saddle) and the seat tube (seat post) are also positioned below the frame. When people push the baby carriage, the chain of the chain wheel set does not work at the moment, the advancing direction of the baby carriage is taken as a standard, the two front wheels are positioned at the rear of the whole baby carriage, and the rear wheels are positioned at the front of the baby carriage and are equivalent to the front wheels of the baby carriage.

In the second mode: through the upset for camber beam and the sprocket group that is connected with the camber beam are located one side of handlebar, then fix camber beam and head pipe through the U-shaped ring, can not take place the displacement between the two. When the bent beam is fixed, the chain wheel group below the bent beam is in a horizontal transverse state, and the seat tube is in a vertical state. At this time, the rear wheel is located behind the front wheel, with reference to the front traveling direction of the stroller.

Preferably, the connection between the sprocket set and the middle portion of the bar is achieved by adding a rotary connector. The rotary connector is a universal connecting piece in the market, and two ends of the rotary connector are provided with hinge holes.

Preferably, the handlebar further comprises a vertically arranged handlebar stem and a horizontally arranged handlebar, and the handlebar stem is provided with a folding rod hinged with the handlebar stem. If when using baby seat, expand the folding rod, original folding rod is attached to at the hand (hold) standpipe, and the folding rod is the level and arranges in sprocket group's top after expanding, and baby seat bottom can be fixed on the folding rod through modes such as joint or threaded connection. The original infant seat is generally provided with a hook at the outer edge, and then the infant seat is hung on a handlebar, so that the infant seat is really convenient to install, but the infant seat is not firm after being installed and cannot bump. The baby seat is additionally provided with a folding rod mechanism on the original basis, and the baby seat is supported and fixed from the lower part of the baby seat.

Preferably, the cross bar of the frame comprises two front fork transverse tubes arranged on two sides of the handle vertical tube, two front fork legs (fork) respectively connected with the front fork transverse tubes are arranged below the front fork transverse tubes, the front fork legs are rotatably connected with the front fork transverse tubes, and the front fork transverse tubes are rotatably connected with the bottom of the handle vertical tube. The front fork legs can rotate in the vertical direction by taking one end of the front fork transverse tube as a circle center, and the front fork transverse tube can rotate in the horizontal direction around the bottom of the handle vertical tube. In the design of the baby carriage, the front fork transverse pipes on the two sides of the vertical pipe can rotate around the shaft, so that the two front fork transverse pipes are gathered together and arranged on one side of the handle bar side by side, and after the front fork legs rotate upwards in the vertical direction, the front fork legs and the front fork transverse pipes connected with the front fork legs can be positioned on the same straight line, the supporting force for the front wheels can be transmitted along the straight line direction, and the load capacity of the whole baby carriage is improved.

Preferably, in consideration of the fact that the U-shaped ring inserted into the through hole is loosened due to bumping of the vehicle so as to fall off, a wing nut is provided at an end of the U-shaped ring exposed after being inserted into the through hole, so that the U-shaped ring is inserted into the through hole and fixed.

Preferably, the two front wheels are respectively a first front wheel and a second front wheel, a clamping groove capable of being clamped with a hub of the second front wheel is formed in the hub (hub) of the first front wheel, and the first front wheel and the second front wheel are connected in a clamping mode, so that the two front wheels are prevented from being outwards supported in the advancing process of the baby carriage.

Preferably, a seat tube bundle (seat post clamp) capable of adjusting the up-and-down position of the seat cushion is arranged outside the seat tube. This configuration is similar to the seat cushion adjustment configuration found on today's popular shared bicycles. Can meet the riding requirements of different people.

Preferably, a battery support is arranged below the seat cushion, a motor is arranged near the hub of the rear wheel, the motor and the battery support are connected through a wire, and the existing partially-shared electric bicycle is also designed in the way. After the motor is additionally arranged, the modified baby carriage can be used as an electric bicycle.

Preferably, the grip is provided with an anti-skid bulge and a brake grip, and the rear wheel is provided with a rear clamp matched with the brake grip for use. The anti-skid protrusions can increase the gripping force of riding or pushing personnel, the rear clamp arranged on the rear wheel is equivalent to a rear brake device of a bicycle, and the safety of riding is improved.

Compared with the prior art, the invention has the beneficial effects that:

the chain wheel set is rotationally connected with the frame, so that the baby stroller can be converted into a bicycle shape, the whole stroller is convenient to fold, and the riding requirements of people are met;

the seat is stored below the chain wheel group and is in a horizontal state, the seat and the seat tube cannot knock the ground, and the pushing of the baby carriage cannot be influenced;

through holes capable of inserting U-shaped rings are formed in the side wall of the bent beam and the side wall of the first pipe, so that the position between the bent beam and the first pipe can be fixed, and the stability and the safety of the whole vehicle are improved;

the folding rod arranged on the vertical tube of the handle can be used for fixing the baby seat, so that the safety of the baby seat in the using process is improved;

can connect through the joint mode between first front wheel and the second front wheel, two front wheels can be drawn together after connecting, improve the stability of riding.

Drawings

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

FIG. 2 is a schematic view of the present invention in use;

FIG. 3 is a schematic structural view of the present invention deformed into a bicycle;

FIG. 4 is a schematic view of a U-shaped ring structure according to the present invention

In the figure: the baby seat comprises a front wheel 1, a rear wheel 2, a baby seat 3, a handlebar 4, a head pipe 5, a cross bar 6, a bent beam 7, a through hole 8, a chain wheel set 9, a large chain wheel 10, a small chain wheel 11, a chain 12, a shell 13, a seat pipe 14, a seat cushion 15, a rotary connector 16, a handle vertical pipe 17, a handle 18, a folding rod 19, a front fork transverse pipe 20, a front fork leg 21, a seat pipe bundle 22, a U-shaped ring 23, a butterfly nut 24 and a brake handle 25.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, a multifunctional baby carriage comprises two front wheels 1, a rear wheel 2, a frame and a baby seat 3 fixed on the frame, wherein the frame comprises a handlebar 4, a vertically arranged first pipe 5 and a horizontally arranged cross bar 6, the middle part of the cross bar 6 is provided with a bent beam 7 capable of rotating around the central axis of the cross bar, the side wall of the first pipe 5 and the side wall of the bent beam 7 are both provided with through holes 8 with the same size, the bent beam 7 is provided with a U-shaped ring 23 with the diameter matched with the aperture of the through hole 8, the U-shaped ring 23 is arranged in the through hole 8 in a penetrating way, one end of the bent beam 7 far away from the cross bar 6 is provided with a chain wheel set 9, the chain wheel set 9 is positioned between the front wheel 1 and the rear wheel 2 and is arranged under the baby seat 3, the chain wheel set 9 comprises a large chain wheel 10, a small chain wheel 11 and a chain 12, the large chain wheel 10 is arranged at one end of the chain wheel set 9 close to, the sprocket wheel set 9 is externally provided with a shell 13, the shell 13 is provided with a seat tube 14 which is rotatably connected with the shell, one end of the seat tube 14 is connected with the shell 13, and the other end of the seat tube 14 is provided with a seat cushion 15.

The head tube 5 included in the frame is typically an intermediate connection structure for the handlebar and the front fork. The handle bar extends horizontally and transversely to form a handle 18, and the handle bar extends vertically and downwardly to form a handle stem 17. The latter half of hand (hold) standpipe is worn to establish in the head pipe and the hand (hold) standpipe can the free rotation in the head pipe, and the free rotation can be realized through installing structures such as car head bowl additional.

The through holes arranged on the side wall of the bent beam 7 and the side wall of the first pipe 5 are used for inserting the U-shaped ring. The U-shaped ring is generally made of galvanized iron materials, provides certain strength and is low in production cost. After the two tail ends in the opening direction of the U-shaped ring are respectively inserted into the two through holes, the position relation between the bent beam and the first pipe is limited.

Because the bending beam 7 can rotate around the central axis of the cross bar 6, the position relation between the bending beam and the head pipe has two forms, namely two working states.

In the first mode: as shown in fig. 1, the camber beam and the sprocket group connected to the camber beam are located below the handlebar, and the sprocket group and the camber beam are respectively disposed on the front and rear sides of the handlebar, and the seat cushion and the seat tube are also located below the frame. When people push the baby carriage, the chain of the chain wheel set does not work at the moment, the advancing direction of the baby carriage is taken as a standard, the two front wheels are positioned at the rear of the whole baby carriage, and the rear wheels are positioned at the front of the baby carriage and are equivalent to the front wheels of the baby carriage. At the moment, the seat tube is in a transverse state, and the seat tube and the seat cushion are both positioned below the chain wheel set and are idle.

In the second mode: as shown in fig. 2, the camber beam and the sprocket set connected to the camber beam are positioned at one side of the handlebar by turning, and then the camber beam and the head pipe are fixed by the U-shaped ring without displacement therebetween. When the bent beam is fixed, the chain wheel group below the bent beam is in a horizontal transverse state, and the seat tube is in a vertical state. At this time, the rear wheel is located behind the front wheel, with reference to the front traveling direction of the stroller.

The connection between the sprocket set 9 and the middle of the bar 6 can be achieved by adding a rotary connector 16. The rotary connector adopts a universal connecting piece on the market, and two ends of the rotary connector are provided with hinge holes.

The handlebar 4 further comprises a vertically arranged handlebar stem 17 provided with a folding bar 19 hinged thereto, and a horizontally arranged grip 18. Initial state: the folding rod is attached to the handle vertical tube. When the baby seat is used, the folding rod is unfolded, the folding rod is horizontal and arranged above the chain wheel set after being unfolded, and the bottom of the baby seat can be fixed on the folding rod in a clamping or threaded connection mode and the like.

As shown in fig. 3, the cross bar of the frame includes two front fork cross tubes 20 disposed on both sides of the handle vertical tube 17, two front fork legs 21 respectively connected to the front fork cross tubes are disposed below the front fork cross tubes, the front fork legs are rotatably connected to the front fork cross tubes, and the front fork cross tubes are rotatably connected to the bottom of the handle vertical tube. The front fork legs can rotate in the vertical direction by taking one end of the front fork transverse tube as a circle center, and the front fork transverse tube can rotate in the horizontal direction around the bottom of the handle vertical tube. The front fork transverse pipes on the two sides of the vertical pipe can rotate around the shaft, so that the two front fork transverse pipes are gathered together and arranged on one side of the handlebar side by side, and after the front fork legs rotate upwards in the vertical direction, the front fork legs and the front fork transverse pipes connected with the front fork legs can be located on the same straight line, and the supporting force of the front wheel can be transmitted along the straight line direction.

As shown in fig. 4, considering that the U-shaped ring 23 is loosened due to bumping after being inserted into the through hole 8 so as to fall off, a wing nut is provided at an exposed end of the U-shaped ring after being inserted into the through hole, so that the U-shaped ring is fixed after being inserted into the through hole.

As shown in fig. 3, the two front wheels 1 are respectively a first front wheel and a second front wheel, a clamping groove capable of being clamped with a hub of the second front wheel is arranged on the hub of the first front wheel, and the first front wheel and the second front wheel can be connected in a clamping manner.

The seat tube 14 is externally provided with a seat tube bundle 22 capable of adjusting the up-down position of the seat cushion. This configuration is similar to the seat cushion adjustment configuration found on today's popular shared bicycles. Can meet the riding requirements of different people.

A battery support is arranged below the seat cushion 15, a motor is arranged near the rear wheel hub, the motor is connected with the battery support through an electric wire, and the existing part sharing electric bicycle also adopts the design. After the motor is additionally arranged, the modified baby carriage can be used as an electric bicycle.

The handle is provided with an anti-skid bulge and a brake handle, and the rear wheel is provided with a rear clamp matched with the brake handle for use. The anti-skid protrusions can increase the gripping force of riding or pushing personnel, the rear clamp arranged on the rear wheel is equivalent to a rear brake device of a bicycle, and the safety of riding is improved.

Claims

1. A multifunctional baby carriage comprises two front wheels, a rear wheel, a frame and a baby seat fixed on the frame, and is characterized in that the frame comprises a handlebar, a first pipe vertically arranged and a cross bar horizontally arranged, the middle part of the cross bar is provided with a bent beam capable of rotating around a central shaft of the cross bar, the side wall of the first pipe and the side wall of the bent beam are provided with through holes with the same size, the bent beam is provided with a U-shaped ring with the diameter matched with the aperture of the through holes, the U-shaped ring is arranged in the through holes in a penetrating manner, one end of the bent beam far away from the cross bar is provided with a chain wheel group, the chain wheel group is positioned between the front wheel and the rear wheel and is arranged under the baby seat, the chain wheel group comprises a large chain wheel, a small chain wheel and a chain, the large chain wheel is arranged at one end of the chain wheel group close to the front wheel, the small chain wheel is arranged near the rear wheel and coaxially, the other end of the seat tube is provided with a seat cushion.

2. The multifunctional baby carriage according to claim 1, wherein the chain wheel set and the middle part of the bar are connected by a rotary connector, and the rotary connector is hinged with both the chain wheel set and the middle part of the bar.

3. The multifunctional baby carriage according to claim 1, wherein the handle bar further comprises a vertical handle stem and a horizontal handle, the handle stem is externally provided with a folding rod, one end of the folding rod is hinged with the bottom of the handle stem, and the other end of the folding rod can be connected with the bottom of the baby seat.

4. The multi-function stroller as claimed in claim 1, wherein the cross bar of the frame comprises two front fork cross tubes disposed at both sides of the handle vertical tube, two front fork legs respectively connected to the front fork cross tubes are disposed under the front fork cross tubes, the front fork legs are rotatably connected to the front fork cross tubes, and the front fork cross tubes are rotatably connected to the bottoms of the handle vertical tubes.

5. The multi-functional stroller of claim 1, wherein a wing nut is provided at the opening of the U-shaped ring to be threadedly coupled to the U-shaped ring.

6. The multifunctional baby carriage as claimed in claim 1, wherein the two front wheels are a first front wheel and a second front wheel, and a clamping groove capable of being clamped with a hub of the second front wheel is formed on the hub of the first front wheel.

7. The multifunctional stroller of claim 1, wherein the seat tube is externally provided with a seat tube bundle for adjusting the vertical position of the seat.

8. The multifunctional stroller as claimed in claim 1, wherein a battery support is provided under the seat cushion, a motor is provided near the rear hub, and the motor and the battery support are connected by a wire.

9. The multi-functional stroller of claim 1, wherein the grip is provided with an anti-slip protrusion and a brake grip, and the rear wheel is provided with a rear clip for cooperating with the brake grip.