CN218577828U

CN218577828U - Baby carriage capable of adjusting wheel track

Info

Publication number: CN218577828U
Application number: CN202221290913.8U
Authority: CN
Inventors: 蔡木章
Original assignee: Guangdong Shunde Jaeyong Hardware Co ltd
Current assignee: Guangdong Shunde Jaeyong Hardware Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2023-03-07
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to a baby carriage capable of adjusting wheel track, which comprises a seat and a walking wheel group positioned below the seat, wherein the walking wheel group comprises a wheel carrier component, a plurality of walking wheels and a wheel track changing mechanism; the wheel carrier component comprises a wheel carrier body combined with the seat and two movable arms symmetrically and swing on the wheel carrier body; wherein the two travelling wheels are respectively and rotatably combined with the two movable arms; the wheel track changing mechanism comprises two pressing parts and a connecting part which are combined with the wheel carrier body, and the two movable arms are pushed by the two pressing parts; the connecting piece is an extension spring and is connected with two connecting sections of the two movable arms, when the baby carriage leaves the ground, the two travelling wheels can oppositely approach to reduce the wheel track, the problem that the rear wheel of the baby carriage arranged on the bicycle is protruded out of the two sides of the bicycle and the safety is influenced because the conventional baby carriage lacks a mechanism for adjusting the wheel track can be solved, and the baby carriage capable of adjusting the wheel track and improving the use safety is provided.

Description

Baby carriage capable of adjusting wheel track

Technical Field

The present invention relates to a stroller for children, and more particularly to a stroller with adjustable track for adjusting track and improving safety.

Background

The baby carriage is a handcart special for carrying and transporting babies, so that children can take and rest in the baby carriage; most of the existing baby carriages have the wheel track of the rear wheel designed to be larger than that of the front wheel so as to improve the stability of the baby carriage when the baby carriage travels on the ground, but the rear wheel of the baby carriage protrudes out of two sides of the bicycle because the wheel track of the rear wheel of the baby carriage cannot be adjusted when the existing baby carriage is lack of a mechanism for adjusting the wheel track, so that parents need to pay special attention to the rear wheels of the baby carriage protruding out of two sides of the bicycle when riding the bicycle provided with the baby carriage, worry about whether the rear wheel of the baby carriage collides with other passersby or vehicles, so that parents cannot concentrate on the road condition in front when the bicycle is ridden, and further develop the problem of traffic accidents; therefore, the existing baby carriage has room for improvement and progress in structural design.

SUMMERY OF THE UTILITY MODEL

The baby carriage aims at solving the problems that when the existing baby carriage is lack of a mechanism for adjusting the wheel track and is installed on a bicycle, the rear wheel of the baby carriage protrudes out of the two sides of the bicycle, and the safety is affected. The utility model provides a can adjust perambulator of wheel base, two digging arms of its walking wheelset's wheel carrier subassembly are supported by two pressures of wheel base change mechanism respectively and are pushed to, make two walking wheels that combine together with two digging arms, can be close to in opposite directions, leave ground, install in the bicycle at perambulator, the wheel base of two walking wheels shortens, can reach the purpose that promotes safe in utilization.

To achieve the above object, the utility model provides a can adjust perambulator of wheel base, it includes:

a seat; and

the walking wheel set is combined with the seat and positioned below the seat, and comprises a wheel carrier assembly, a plurality of walking wheels and a wheel track changing mechanism;

the wheel carrier assembly comprises a wheel carrier body and two movable arms, wherein the wheel carrier body is combined with the seat, and the two movable arms are symmetrically arranged on the wheel carrier body in a swinging manner;

the two walking wheels are respectively combined with the two movable arms and can rotate;

the wheel track changing mechanism comprises two pressing and supporting pieces and a connecting piece, each pressing and supporting piece is elastic and is combined with the wheel carrier body, and the two movable arms are respectively pushed by the two pressing and supporting pieces so that the two travelling wheels combined with the two movable arms can approach in an opposite direction; the connecting piece is an extension spring and has elasticity and is connected with two connecting sections of the two movable arms, so that the two connecting sections can approach to each other oppositely.

Preferably, each of the movable arms includes an assembly section, the length of the assembly section of each of the movable arms is greater than the length of the connection section of the assembly section, the two traveling wheels are respectively combined with the two assembly sections of the two movable arms, and the two assembly sections of the two movable arms are respectively pushed by the two pushing members.

Preferably, each of the movable arms of the stroller with adjustable track comprises a sleeve rotatably sleeved on the wheel frame body.

Preferably, the connecting section and the assembling section of each movable arm extend from the sleeve of the movable arm to opposite directions.

Preferably, each of the pressing members has a U-shaped profile and includes two opposite ends, the two ends of each of the pressing members are coupled to the wheel frame body, each of the pressing members is provided with an elastic buffer sleeve, and each of the pressing members pushes the corresponding assembling section of the movable arm through the buffer sleeve.

Preferably, each of the two walking wheels combined with the two movable arms of the baby carriage capable of adjusting the wheel track comprises two wheel bodies.

Preferably, the track-adjustable stroller is capable of being combined with a bicycle combining device, the bicycle combining device comprises a main frame, the main frame comprises a supporting component, the supporting component comprises two supporting members, and the two supporting members can upwards support the two connecting sections of the two movable arms, so that the two travelling wheels combined with the two movable arms can further approach each other.

Preferably, in the stroller with adjustable track, each of the supporting members is cylindrical and is sleeved with an elastic damping sleeve, and the two supporting members are respectively pushed against the two assembling sections of the two movable arms by the two damping sleeves.

Preferably, the track-adjustable stroller is capable of being combined with a bicycle combining device, the bicycle combining device comprises a main frame, the main frame comprises a supporting component, the supporting component comprises two supporting pieces, and the two supporting pieces can upwards support the two movable arms, so that the two travelling wheels combined with the two movable arms can further approach.

Preferably, in the stroller with adjustable track, the plurality of pushing portions of the returning member of each wheel seat extend obliquely in opposite directions.

Preferably, the wheel track adjustable baby carriage has a restoring member of each wheel seat, the restoring member has elasticity and includes a combining portion, the combining portion includes an inner circumferential surface and an outer circumferential surface, and the plurality of pushing portions of the restoring member are disposed on the inner circumferential surface of the combining portion.

Preferably, each of the wheel seats of the stroller with adjustable track comprises a sheath sleeved on and abutted against the restoring member of the wheel seat.

Preferably, the stroller with adjustable track has a U-shaped connecting portion of the return element of each wheel seat.

Preferably, each of the repositioning members includes two fastening portions, each of the combining portions includes an opening end, the two fastening portions of each of the repositioning members are disposed on the outer peripheral surface of the combining portion of the repositioning member, are disposed at the opening end of the combining portion, and project in opposite directions, and the two fastening portions of each of the repositioning members abut against a sheath sleeved on the repositioning member.

Preferably, in the stroller with adjustable track, the plurality of pushing portions of each of the restoring members extend obliquely away from the opening end of the combining portion of the restoring member.

By means of the technical characteristics, the two movable arms of the utility model are respectively pushed by the two pressing pieces when the baby carriage leaves the ground, so that the two travelling wheels combined with the two movable arms can retract inwards and shorten the wheel track, and the collision between the baby carriage and a passerby or a vehicle when the baby carriage travels along with a bicycle is avoided; when the baby carriage contacts the ground, the two movable arms are opened to have sufficient wheel track with the two walking wheels, so that the baby carriage can stably walk, and the two movable arms are respectively pushed by the two pressing pieces to provide independent left and right shock absorption effects; the resetting piece of the utility model can elastically push the wheel shaft to reset, so that the running smoothness of the baby carriage is improved; synthesize foretell three kinds of functions, can promote the utility model discloses the convenience that uses and the comfort level of taking.

By means of the technical characteristics, the two movable arms of the wheel carrier component of the traveling wheel set of the baby carriage capable of adjusting the wheel track are respectively pushed by the two pressing pieces of the wheel track changing mechanism, so that the two traveling wheels combined with the two movable arms can approach oppositely; the wheel track changing mechanism of the utility model shortens the wheel track of the two walking wheels combined with the two movable arms when the baby carriage leaves the ground, and avoids colliding other passers-by or vehicles when the baby carriage is arranged on a bicycle in the process of walking; the pressing piece of the wheel track changing mechanism has elasticity, and can provide shock absorption and buffering effects when the baby carriage travels on the ground, so that the riding comfort of the baby carriage is improved; when the baby carriage travels on the ground, the two movable arms are opened, so that the two traveling wheels combined with the two movable arms have sufficient wheel track, the baby carriage of the utility model can stably travel on the ground, and the baby carriage is prevented from overturning; the utility model discloses a wheel base change mechanism also can provide the buffering for the perambulator when the perambulator falls to ground, avoids the child in the perambulator to feel uncomfortable.

Borrow by foretell technical characteristic, the utility model discloses a wheel track change mechanism, its connecting piece utensil elasticity and link two sections of connecting of two digging arms, the connecting piece stimulates two digging arms, provides the open power of two digging arms in advance, when making the two walking wheels contact ground that combine together with two digging arms, two digging arms can be fast, change the expansion state in a flexible way.

Borrow by foretell technical characteristic, the utility model discloses a wheel carrier subassembly, the length of the equipment section of its each digging arm is greater than the length of its section of connecing, when the perambulator passes through the bicycle combination device and installs in the bicycle, and two digging arms are received fashionably, and the equipment section length is greater than the design of connecing the section length, can balance the utility model discloses a rotational inertia of seat avoids installing the stability when the perambulator that installs in the bicycle influences the bicycle and marchs, and the condition of overturning on by the bicycle even takes place, makes the utility model discloses a perambulator can install in the bicycle steadily, can ensure the security in use.

By the above technical features, the utility model discloses a wheel track change mechanism's each presses piece cover to be equipped with elastic cushion collar, and the cushion collar that each pressure piece was established of overlapping has avoided pressing piece and digging arm direct contact, and when the perambulator was marchd, avoided pressing piece and digging arm wearing and tearing each other, can also further promote the function of buffering.

By means of the technical characteristics, the wheel seat of the walking wheel set is provided with the elastic reset piece, the reset piece is provided with the pushing part, and the wheel shaft can be pushed by the pushing part of the reset piece; when the walking wheels turn, wheel shafts combined with the walking wheels can press against the pushing and supporting part of the reset piece, so that the pushing and supporting part deforms; when the pushing and supporting part is restored, the pushing and supporting part can push the wheel shaft to restore, so that the smoothness of the baby carriage during traveling is improved; the utility model discloses in the piece that resets that the wheel seat was established, the buffer function that the wheel tread change mechanism of collocation provided makes the utility model discloses the comfort level of taking of preferred has.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is a perspective view of another angle of the preferred embodiment of the present invention.

Fig. 3 is a partially enlarged perspective view of a preferred embodiment of the present invention.

Fig. 4 is an enlarged bottom view of a portion of the preferred embodiment of the present invention.

Fig. 5 is an enlarged bottom view of a portion of the preferred embodiment of the present invention.

Fig. 6 is a rear view of the preferred embodiment of the present invention.

Fig. 7 is a bottom view of the preferred embodiment of the present invention.

Fig. 8 is a rear view of the preferred embodiment of the present invention.

Fig. 9 is a bottom view of the preferred embodiment of the present invention.

FIG. 10 is a rear elevational view of the preferred embodiment of the present invention mounted to a bicycle by a bicycle coupling device.

Detailed Description

The technical means of the present invention to achieve the predetermined purpose of the present invention will be further described with reference to the drawings and the preferred embodiments of the present invention.

As shown in fig. 1 and 2, the stroller capable of adjusting the track of the present invention comprises a seat 10 and a traveling wheel set 20; the traveling wheel set 20 is mounted on the seat 10.

As shown in fig. 1, the seat 10 includes a seat portion 11, a backrest portion 12, two side blocking portions 13, two pedal portions 14 and a handle 15; wherein, the sitting portion 11 includes a front end and a rear end opposite to each other; the backrest 12 is provided upright at the rear end of the seat 11; the two side blocking parts 13 are respectively positioned at two sides of the seat 10, and the sitting part 11, the backrest part 12 and the two side blocking parts 13 surround to form a wrapping sitting space, so that the probability that a child falls out of the seat 10 can be reduced; two these pedal portions 14 combine in this portion of taking 11 and be located the below of this portion of taking 11, and each pedal portion 14 is equipped with the perforation 141 of ventilative usefulness, promotes the comfort level of infant's foot, and this handle 15 is installed in this back 12 and can be closed in this back 12, and this handle 15 can supply the head of a family to grip and promote the utility model discloses an infant's car.

As shown in fig. 1, fig. 2 and fig. 3, the walking wheel set 20 is located below the seat 10, and the walking wheel set 20 includes two wheel seats 21, a wheel carrier assembly 22, four walking wheels 23 and a wheel track changing mechanism 24; wherein, the two wheel seats 21 are respectively located below the two pedals 14 of the seat 10 and combined with the seat 10, the two wheel seats 21 are symmetrically arranged, and only a single wheel seat 21 is described below: the wheel seat 21 includes a sheath 211 and a restoring member 212; the sheath 211 is combined with the seat 10 and includes two opposite ends and an accommodating space, and the accommodating space is disposed inside the sheath 211 and extends to the two ends of the sheath 211;

the reset element 212 is made of elastic material and includes a combination portion 2121, four pushing portions 2122 and two fastening portions 2123, the combination portion 2121 is U-shaped and includes an inner circumferential surface, an outer circumferential surface and an open end, the four pushing portions 2122 are obliquely disposed on the inner circumferential surface of the combination portion 2121, the four pushing portions 2122 are opposite to each other and symmetrically extended, in the preferred embodiment of the present invention, the four pushing portions 2122 are obliquely extended away from the open end of the combination portion 2121; the two buckling parts 2123 are disposed on the outer circumferential surface of the combining part 2121 and located at the opening end of the combining part 2121, the two buckling parts 2123 are protruded in opposite directions, and the two buckling parts 2123 are adjacent to the opening end of the combining part 2121; the combining portion 2121 of the resetting piece 212 is inserted into the accommodating space of the sheath 211, and the two buckling portions 2123 of the resetting piece 212 abut against one end of the sheath 211.

As shown in fig. 2 and fig. 3, two of the four walking wheels 23 are respectively and rotatably assembled to the two wheel shafts 24, the two wheel shafts 24 are respectively inserted into the two combining portions 2121 of the two restoring members 212 of the two wheel bases 21, each wheel shaft 24 abuts against the two abutting portions 2122 of the corresponding restoring member 212, and the two steering pivots 25 respectively penetrate through the two sheaths 211 of the two wheel bases 21 and the two wheel shafts 24 to pivotally connect the two wheel shafts 24 to the two wheel bases 21.

The wheel frame assembly 22 includes a wheel frame body 221 and two movable arms 222, the wheel frame body 221 is formed by bending a round bar, the two movable arms 222 are symmetrically and swingably disposed on the wheel frame body 221, the two movable arms 222 are symmetrically disposed, and only a single movable arm 222 is described below: the movable arm 222 includes a sleeve 2221, a connecting section 2222 and an assembling section 2223, the sleeve 2221 can be rotatably sleeved on the wheel frame body 221, so that the movable arm 222 can be swingably arranged on the wheel frame body 221, the connecting section 2222 and the assembling section 2223 extend from the sleeve 2221 in opposite directions, and the length of the assembling section 2223 is greater than that of the connecting section 2222.

As shown in fig. 2 and 3, of the four walking wheels 23, two walking wheels 23 are respectively and rotatably assembled on the two wheel bases 21, and the other two walking wheels 23 are respectively and rotatably combined with two assembling sections 2223 of the two movable arms 222; each walking wheel 23 of the two walking wheels 23 combined with the two movable arms 222 comprises two wheel bodies 231.

As shown in fig. 2, 3, 6 and 7, the track width varying mechanism 24 includes two pressing members 241 and a connecting member 242; each pressing and supporting member 241 has elasticity and a U-shaped contour, each pressing and supporting member 241 includes two opposite ends, the two ends of each pressing and supporting member 241 are combined with the wheel frame body 221 and sleeved with a buffer sleeve 243 having elasticity, the two pressing and supporting members 241 push against the two assembling sections 2223 of the two movable arms 222 through the two buffer sleeves 243, so that the two movable arms 222 are pushed against by the two pressing and supporting members 241, respectively, the two assembling sections 2223 of the two movable arms 222 are folded, and the two traveling wheels 23 combined with the two movable arms 222 can approach each other in opposite directions.

The connecting member 242 has elasticity and links the two connecting sections 2222 of the two movable arms 222, so that the two connecting sections 2222 can swing in opposite directions, and the two assembling sections 2223 of the two movable arms 222 are separated from each other, thereby providing an opening force for the two movable arms 222; in the preferred embodiment of the present invention, the connecting member 242 is annular, and the annular connecting member 242 passes through the two connecting sections 2222. For application, the connecting element 242 can also be an extension spring connecting the two connecting sections 2222.

For convenience of description, only the wheel base 21, the traveling wheel 23 and the wheel axle 24 mounted on the wheel base 21 will be described below, as shown in fig. 4 and 5, when a householder holds the handle 15 and applies a turning force, the wheel axle 24 pivoted to the wheel base 21 swings pivotally relative to the wheel base 21, and the wheel axle 24 pushes against the four pushing parts 2122 of the restoring element 212 of the wheel base 21, so as to deform the pushing part 2122 of the elastic restoring element 212; when the parent stops applying the turning force, the elastic pushing part 2122 of the restoring member 212 restores and pushes the axle 24 to the middle position of the combining part 2121 of the restoring member 212, so that the walking wheel 23 of the present invention has the restoring function.

The utility model discloses a baby carriage of walking wheel that utensil can reset, the portion 2122 that supports that pushes away of the piece 212 that resets of its each wheel seat 21 can push away this shaft 24 that supports against to the intermediate position of the joint portion 2121 of the piece 212 that should reset, makes the utility model discloses a walking wheel 23 has the function that resets, lets baby carriage more laborsaving when the implementation, promotes baby carriage's smoothness degree when the implementation.

As shown in fig. 6 and 7, although the connecting member 242 having elasticity and linking the two connecting sections 2222 of the two movable arms 222 provides an expanding force for the two movable arms 222; however, the force of the two pressing members 241 of the track width varying mechanism 24 pushing against the two assembling sections 2223 of the two movable arms 222 is greater than the opening force provided by the connecting member 242 for the two movable arms 222; therefore, when two walking wheels 23 combined with two movable arms 222 leave the ground G, the two movable arms 222 are slightly closed, and the two walking wheels 23 are slightly close to each other, so that the wheel distance of the two walking wheels 23 is shortened, and the utility model discloses when installing on the bicycle in marcing, the danger caused by colliding other passersby or vehicles can be avoided.

As shown in fig. 8 and 9, when the two walking wheels 23 combined with the two movable arms 222 contact the ground G, the two walking wheels 23 are pushed by the reaction force provided by the ground G, so that the two movable arms 222 can be in an open state, which helps the stroller of the present invention to stably travel on the ground. Since the connecting member 242 pulls the two movable arms 222 and provides the force for opening the two movable arms 222 in advance, the two movable arms 222 can be quickly and flexibly converted into the unfolded state when the two traveling wheels 23 combined with the two movable arms 222 contact the ground and are pushed by the reaction force provided by the ground G.

Furthermore, the track changing mechanism 24 of the present invention not only shortens the track of the two traveling wheels 23 coupled to the two movable arms 222, but also prevents the traveling bicycle from colliding with other pedestrians or vehicles; have elastic two should press and support piece 241 the utility model discloses a perambulator when advancing in ground G, can also provide the effect of buffering, promote the comfort level of taking of perambulator.

As shown in fig. 10, when the baby carriage of the present invention is installed on a bicycle 70 through a bicycle coupling device 60 and two movable arms 222 are folded, since the length of the assembly section 2223 of each movable arm 222 is greater than the length of the connection section 2222, the present invention can balance the generated moment of inertia of the seat 10, avoid installing on the bicycle 70 the present invention influences the stability of the bicycle 70 when traveling, even the situation of being overturned on the bicycle 70 occurs, so that the baby carriage of the present invention can be stably installed on the bicycle 70, and the safety in use can be ensured.

As shown in fig. 10, the bicycle combining device 60 includes a main frame 61, and the main frame 61 includes a supporting component 611, the supporting component 611 includes two supporting pieces 6111, both of the supporting pieces 6111 are cylindrical and can support two movable arms 222 upwards, so that the two traveling wheels 23 combined with the two movable arms 222 can further approach to each other to further reduce the wheel track; in application, each supporting member 6111 can also be sleeved with an elastic damping sleeve 6112, so that the two supporting members 6111 respectively push against the two assembling sections 2222 of the two movable arms 222 by the two sleeved damping sleeves 6112.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides a can adjust perambulator of wheel base which characterized in that is equipped with:

a seat; and

2. The stroller of claim 1, wherein each of the movable arms comprises an assembly section, the assembly section of each of the movable arms is longer than the connection section thereof, the two wheels are respectively coupled to the two assembly sections of the two movable arms, and the two assembly sections of the two movable arms are respectively pushed by the two pushing members.

3. The stroller of claim 2, wherein each of the movable arms includes a sleeve rotatably received in the frame body.

4. The track adjustable stroller as recited in claim 3, wherein the connecting section and the assembling section of each of the movable arms extend in opposite directions from the sleeve of the movable arm.

5. The stroller according to claim 4, wherein each of the pressing members has a U-shaped profile and includes two opposite ends, the two ends of each of the pressing members are coupled to the wheel frame body, each of the pressing members is provided with a resilient cushion sleeve, and each of the pressing members is pushed against the corresponding assembling section of the movable arm by the cushion sleeve.

6. The track adjustable stroller as recited in claim 5, wherein each of the two wheels coupled to the movable arms comprises two wheels.

7. The stroller of claim 6, wherein the adjustable track is combined with a bicycle coupling device, the bicycle coupling device comprises a main frame, and the main frame comprises a supporting member, the supporting member comprises two supporting members, and the two supporting members can upwardly support the two connecting sections of the two movable arms, so that the two traveling wheels combined with the two movable arms can further approach each other.

8. The stroller according to claim 7, wherein each of the supporting members is cylindrical and is sleeved with a resilient shock-absorbing sleeve, and the two supporting members respectively push against the two assembly sections of the two movable arms by the two shock-absorbing sleeves.

9. The stroller of claim 1, wherein the stroller is capable of being coupled to a bicycle coupling device, the bicycle coupling device comprises a main frame, and the main frame comprises a support member, the support member comprises two support members, and the support members are capable of supporting the movable arms upwardly to further approach the traveling wheels coupled to the movable arms.

10. The stroller of claim 1, wherein the seat comprises a seating portion and a backrest portion, the seating portion comprises a front end and a rear end opposite to each other, the backrest portion is vertically disposed at the rear end of the seating portion, the traveling wheel assembly comprises two wheel seats and two wheel axles, the two wheel seats are symmetrically disposed, each wheel seat comprises a restoring member, the restoring member comprises a plurality of elastic pushing portions, the pushing portions are opposite to each other and symmetrically extend, the two wheel axles are respectively and swingably disposed on the two wheel seats, each wheel axle can swing toward the front end and the rear end of the seating portion and abut against the corresponding pushing portions of the restoring member, and the two traveling wheels are respectively and rotatably coupled to the two wheel axles.