CN114906199A

CN114906199A - Foldable sliding baby trolley

Info

Publication number: CN114906199A
Application number: CN202110184445.XA
Authority: CN
Inventors: 马志威
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2022-08-16
Anticipated expiration: 2041-02-08
Also published as: CN114906199B

Abstract

The invention provides a foldable sliding baby trolley which comprises a frame, a wheel assembly, a seat assembly and a push handle, wherein the lower end of a push rod extends into a hollow sleeve, locking structures are arranged on the push rod and the hollow sleeve, and the push rod can slide in the hollow sleeve when the locking structures are in an unlocking state; when the push rod slides to the first locking position along the hollow sleeve, the first locking position is pushed to slide out of the hollow sleeve, and the wheel mounting seat is unlocked and can rotate downwards to be close to the frame; when the push rod slides to the second locking position along the hollow sleeve, the second locking position is pushed to slide out of the hollow sleeve, and the seat mounting seat can be unlocked and can rotate downwards to be close to the frame. Only need control locking structure unblock in one place, just can indirect control wheel subassembly and seat subassembly unblock, can realize pushing away simultaneously to fold with wheel subassembly, seat subassembly folding, it is very convenient that the user uses.

Description

Foldable sliding baby trolley

Technical Field

The invention belongs to the technical field of baby carriages, and particularly relates to a sliding baby carriage.

Background

The baby sliding vehicle is a 'vehicle' for babies, can be moved only by assisting with pushing or pulling by people, and is a necessary vehicle for assisting parents in carrying babies to walk and walk. Among the prior art, swift current child car generally has the frame, is connected with the wheel subassembly at the frame downside, is connected with at the frame rear side and pushes away the handle, is connected with the seat subassembly at the upside of frame, in the use, can put into the seat subassembly with baby or child to promote swift current child car through pushing away the handle and remove.

The wheel assembly and the seat assembly of the most conventional baby sliding vehicle are locked and fixed on the frame, namely, the wheel assembly and the seat assembly are always in an open state, so that a user is very inconvenient to carry the baby sliding vehicle; therefore, a foldable baby trolley also appears in the prior art, namely, the wheel assembly and the seat assembly are mounted on the frame through independent complex mounting structures, and a user needs to control a plurality of switches to realize final folding when folding the baby trolley, so that the baby trolley is very inconvenient to operate.

Based on this, the prior art is in need of improvement.

Disclosure of Invention

The invention provides a foldable baby sliding vehicle, which can simultaneously realize folding of a pushing handle and wheel assemblies and folding of a seat assembly through simple operation, and is very convenient for a user to use.

The invention provides a foldable baby sliding vehicle, which comprises:

the bicycle frame is provided with a hollow sleeve;

the wheel assembly comprises a wheel mounting seat and a first wheel, one end of the wheel mounting seat is connected with the first wheel, the other end of the wheel mounting seat is rotatably connected with the lower side of the frame, a first locking clamp position is arranged on the wheel mounting seat, and the first locking clamp position extends into and is locked in the hollow sleeve;

the seat assembly comprises a seat mounting seat and a seat arranged on the seat mounting seat, the seat mounting seat is rotatably connected to the upper side of the frame, a second locking clamping position is arranged on the seat mounting seat, and the second locking clamping position extends into and is locked in the hollow sleeve;

the push handle comprises a handle and a push rod, the handle is arranged at the upper end of the push rod, the lower end of the push rod extends into the hollow sleeve, locking structures are arranged on the push rod and the hollow sleeve, and when the locking structures are in a locking state, the push rod and the hollow sleeve are locked; when the locking structure is in an unlocking state, the push rod can slide in the hollow sleeve;

when the push rod slides to the first locking position along the hollow sleeve, the first locking position is pushed to slide out of the hollow sleeve, and the wheel mounting seat is unlocked and can rotate downwards to be close to the frame; when the push rod slides to the second locking screens along the hollow sleeve, the second locking screens are pushed to slide out of the hollow sleeve, and the seat mounting seat can rotate downwards to be close to the frame when unlocked.

According to the foldable sliding baby car, after the locking structure is controlled to be unlocked, the push rod of the push handle can slide in the hollow sleeve, namely, the push rod is folded in the hollow sleeve of the car frame, meanwhile, in the sliding process of the push rod in the hollow sleeve, the first locking clamp position can be pushed to slide out of the hollow sleeve, and at the moment, the wheel mounting seat is unlocked and can rotate downwards to be close to the car frame; the second detent can also be pushed to slide out of the hollow sleeve, at which time the seat mount is unlocked and can be rotated downwardly proximate the frame. From this only need control locking structure unblock in one place, just can the unblock of indirect control wheel subassembly and seat subassembly, can realize pushing away simultaneously through simple operation and fold and wheel subassembly, seat subassembly folding, it is very convenient that the user uses.

Optionally, the locking structure includes an elastic buckle disposed on the push rod and a corresponding notch disposed in the hollow sleeve, and when the elastic buckle is clamped in the notch, the locking structure is in a locked state; after the elastic buckle slides out of the notch, the locking structure is in an unlocking state. The locking structure is simple in structure and low in cost, when the locking structure needs to be adjusted to be in an unlocking state, only the elastic buckle needs to be pressed to be contracted into the notch, and the push rod can slide in the hollow sleeve; on the contrary, when the locking structure needs to be adjusted to be in a locking state, the elastic buckle can be automatically popped out to realize locking only by pulling the push rod to enable the elastic buckle to slide to the position of the notch.

Optionally, a first elastic element is disposed between the first locking position and the wheel mounting seat, and an inclined guide surface corresponding to the push rod is disposed at an end of the first locking position. When the push rod slides to be in contact with the inclined guide surface at the end part of the first locking clamp position, the first locking clamp position is slowly compressed and slides out of the hollow sleeve, and the wheel mounting seat is unlocked and can rotate downwards to be close to the frame; when wheel subassembly is expanded to needs, outwards twitch the push rod and let its locking on the cavity sleeve, expand wheel subassembly to first locking screens when corresponding the hole site on the cavity sleeve, under the effect of first elastic component, first locking screens stretches into in the cavity sleeve to the realization is locked wheel subassembly.

Optionally, a second elastic element is arranged between the second locking position and the seat mounting seat, and an inclined guide surface corresponding to the push rod is arranged at the end of the second locking position. When the push rod slides to be in contact with the inclined guide surface at the end part of the second locking clamping position, the second locking clamping position is slowly compressed and slides out of the hollow sleeve, and the seat mounting seat is unlocked and can rotate downwards to be close to the frame; when the seat assembly needs to be unfolded, the push rod is pulled outwards to lock the seat assembly on the hollow sleeve, when the seat assembly is unfolded to the position, corresponding to the hole position, on the hollow sleeve, of the second locking clamping position, the second locking clamping position extends into the hollow sleeve under the action of the second elastic piece, and therefore the seat assembly is locked.

Optionally, the seat mounting seat and the seat are rotatably connected, one of the seat and the seat mounting seat is provided with a buckle, the other of the seat and the seat mounting seat is provided with a first clamping groove and a second clamping groove which are matched with the buckle and symmetrical along a seat rotation center, when the seat faces the front of the frame, the buckle is locked in the first clamping groove, and when the seat faces the rear of the frame, the buckle is locked in the second clamping groove. Through be equipped with assorted buckle and first draw-in groove, second draw-in groove on seat and seat mount pad, and when the seat orientation during frame the place ahead, the buckle is locked in the first draw-in groove, when the seat orientation during the frame rear, the buckle locking is in the second draw-in groove, realize promptly that the seat has towards the place ahead or towards rear two kinds of states to satisfy the use that the user can be more nimble when swift current child, can cooperate folding of seat subassembly simultaneously, let swift current child car after folding occupy less space.

Optionally, a pedal is arranged on the front side of the seat, the pedal is rotatably mounted on the seat, a pedal mounting seat is arranged on the seat, the pedal is connected with the pedal mounting seat through a bolt, and a locking nut matched with the bolt is arranged on the pedal mounting seat. The footboard is rotatable design for the product uses more in a flexible way, can satisfy the diversified demand of user, and the rotatory angle modulation that realizes of pine lock nut footboard screws lock nut, and the footboard is compressed tightly and is fixed on the footboard mount pad, thereby avoids the footboard angle to change.

Optionally, a sun visor is arranged above the seat, and the sun visor is rotatably mounted on the upper part of the backrest of the seat. The sunshading board is rotatable design for the product uses more in a flexible way, can satisfy user's diversified demand.

Optionally, be equipped with the handrail on the seat, the handrail is articulated with the seat, be equipped with the screens on the handrail, be equipped with on the seat with the draw-in groove of a plurality of gears that the screens corresponds, the screens card is gone into arbitrary behind the draw-in groove, the handrail is locked. The screens and the draw-in groove cooperation of a plurality of gears can realize fixing a position the handrail in the angle of difference to match the different user demand of user, improve the practicality of product.

Optionally, the handle and the push rod are rotatably connected, a sawtooth-shaped limit sleeve is arranged on the handle, and a sawtooth-shaped clamping sleeve matched with the sawtooth-shaped limit sleeve is arranged on the push rod. The handle is rotatable design for the product uses more in a flexible way, can satisfy user's diversified demand, through the cooperation of zigzag cutting ferrule and zigzag stop collar, can realize the angle of simple nimble adjustment handle, and easy operation practicality is strong.

Optionally, a second wheel is arranged on the frame, and when the wheel mounting seat is unlocked to rotate downwards and is close to the frame, the first wheel and the second wheel are distributed in a staggered mode. After the wheel assembly is folded and is close to the frame, the first wheel and the second wheel are staggered and distributed to realize more compactness of folding, so that the folded baby carriage occupies smaller space.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic view of the stroller of the present invention in an extended position.

FIG. 2 is a schematic sectional view of the stroller of the present invention in the expanded position.

Fig. 3 is a schematic view of the seat of the baby walker of the present invention oriented rearward of the frame.

Fig. 4 is a schematic view of the foldable baby trolley of the invention.

Fig. 5 is a schematic sectional view of the baby walker in a folded state.

Figure 6 is an exploded view of the push handle of the swing cart of the present invention.

Figure 7 is an exploded view of the seat and seat mount of the walk baby vehicle of the present invention.

Figure 8 is a schematic view of the sleeve and slide of the baby walker of the present invention.

Fig. 9 is an exploded view of the foot plate of the stroller of the present invention.

Fig. 10 is an exploded view of the sun visor for a stroller of the present invention.

Figure 11 is an exploded view of the armrest structure of the walk baby vehicle of the present invention.

Reference numerals are as follows:

10-a frame; 11-a hollow sleeve; 12-a notch; 13-a second wheel; 20-a wheel assembly; 21-a wheel mount; 22-a first wheel; 23-a first locking detent; 24-a first elastic member; 30-a seat assembly; 31-seat mount; 311-a first card slot; 312-a second card slot; 313-a slider; 314-a sleeve; 32-seat; 321-buckling; 33-a second lock position; 34-a second elastic member; 40-pushing the handle; 41-a handle; 42-a push rod; 43-elastic snap; 44-a sawtooth-shaped stop collar; 45-sawtooth-shaped cutting sleeves; 50-a pedal; 51-pedal mount; 52-bolt; 53-lock nuts; 54-nut caps; 55-pressing the convex hull; 60-sun visor; 61-a sun visor mount; 62-a tooth-shaped limiting sleeve; 63-a toothed cutting sleeve; 64-a spring; 70-handrails; 71-clamping; 72-card slot; 73-control knob.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The foldable baby stroller of the invention is described in detail with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

Referring to fig. 1 to 11, the foldable baby stroller provided in the present invention includes:

a frame 10 provided with a hollow sleeve 11;

a wheel assembly 20, including a wheel mounting seat 21 and a first wheel 22, wherein one end of the wheel mounting seat 21 is connected to the first wheel 22, and the other end is rotatably connected to the lower side of the frame 10, the wheel mounting seat 21 is provided with a first locking position 23, and the first locking position 23 extends into and is locked in the hollow sleeve 11;

a seat assembly 30, including a seat mounting seat 31 and a seat 32 disposed on the seat mounting seat 31, wherein the seat mounting seat 31 is rotatably connected to the upper side of the frame 10, the seat mounting seat 31 is provided with a second detent 33, and the second detent 33 extends into and is locked in the hollow sleeve 11;

the push handle 40 comprises a handle 41 and a push rod 42, the handle 41 is arranged at the upper end of the push rod 42, the lower end of the push rod 42 extends into the hollow sleeve 11, the push rod 42 and the hollow sleeve 11 are provided with locking structures, and when the locking structures are in a locking state, the push rod 42 and the hollow sleeve 11 are locked; when the locking structure is in the unlocking state, the push rod 42 can slide in the hollow sleeve 11;

when the push rod 42 slides to the first locking position 23 along the hollow sleeve 11, the first locking position 23 is pushed to slide out of the hollow sleeve 11, and the wheel mounting seat 21 is unlocked and can rotate downwards to be close to the frame 10; when the push rod 42 slides along the hollow sleeve 11 to the second lock position 33, the second lock position 33 is pushed to slide out of the hollow sleeve 11, and the seat mounting seat 31 is unlocked and can rotate downward close to the frame 10.

According to the foldable baby sliding vehicle, after the locking structure is controlled to be unlocked, the push rod 42 of the push handle 40 can slide in the hollow sleeve 11, namely, the foldable baby sliding vehicle is folded in the hollow sleeve 11 of the vehicle frame 10, meanwhile, in the sliding process of the push rod 42 in the hollow sleeve 11, the first locking clamping position 23 can be pushed to slide out of the hollow sleeve 11, and at the moment, the wheel mounting seat 21 is unlocked and can rotate downwards to be close to the vehicle frame 10; the second detent 33 can also be pushed to slide out of the hollow sleeve 11, and the seat mount 31 is unlocked and can be rotated downward proximate to the frame 10. Therefore, only one locking structure needs to be controlled to unlock, the wheel assembly 20 and the seat assembly 30 can be controlled to unlock indirectly, the push handle 40 can be folded and the wheel assembly 20 and the seat assembly 30 can be folded simultaneously through simple operation, and the use is very convenient for a user.

More specifically, in the embodiment, as shown in fig. 2, the locking structure includes an elastic catch 43 disposed on the push rod 42 and a corresponding notch 12 disposed in the hollow sleeve 11, and when the elastic catch 43 is caught in the notch 12, the locking structure is in a locking state; after the elastic buckle 43 slides out of the notch 12, the locking structure is in an unlocked state. The elastic buckle 43 is directly an integrally formed elastic sheet with a columnar protrusion, the result is simple, the cost is low, when the locking structure needs to be adjusted to be in an unlocking state, only the elastic buckle 43 needs to be pressed to be contracted into the notch 12, and at the moment, the push rod 42 can slide in the hollow sleeve; on the contrary, when the locking structure needs to be adjusted to be in the locking state, the elastic buckle 43 can be automatically ejected to realize locking only by pulling the push rod 42 to slide the elastic buckle 43 to the position of the notch 12.

In the present embodiment, a first elastic member 24 is disposed between the first locking detent 23 and the wheel mounting seat 21, and an inclined guide surface corresponding to the push rod 42 is disposed at an end of the first locking detent 23. When the push rod 42 slides to contact with the inclined guide surface at the end part of the first locking position 23, the first locking position 23 is slowly compressed to slide out of the hollow sleeve 11, and the wheel mounting seat 21 is unlocked and can rotate downwards to be close to the frame 10; when the wheel assembly 20 needs to be unfolded, the push rod 42 is pulled outwards to be locked on the hollow sleeve 11, and when the wheel assembly 20 is unfolded until the first locking position 23 corresponds to a hole position (not shown in the drawings) on the hollow sleeve, the first locking position 23 extends into the hollow sleeve 11 under the action of the first elastic piece 24, so that the wheel assembly 20 is locked. Similarly, a second elastic member 34 is disposed between the second lock stopper 33 and the seat mounting seat 31, and an inclined guide surface corresponding to the push rod 42 is disposed at an end of the second lock stopper 33. When the push rod 42 slides to be in contact with the inclined guide surface at the end part of the second locking position 33, the second locking position 33 is slowly compressed and slides out of the hollow sleeve 11, and the seat mounting seat 31 is unlocked and can rotate downwards to be close to the frame 10; when the seat assembly 30 needs to be unfolded, the push rod 42 is pulled outwards to be locked on the hollow sleeve 11, and when the seat assembly 30 is unfolded until the second locking position 33 corresponds to a hole position (not shown in the drawings) on the hollow sleeve 11, the second locking position 33 extends into the hollow sleeve 11 under the action of the second elastic member 34, so that the seat assembly 30 is locked.

In this embodiment, as shown in fig. 6, the handle 41 and the push rod 42 are rotatably connected, a saw-toothed stop sleeve 44 is disposed on the handle 41, and a saw-toothed cutting sleeve 45 matched with the saw-toothed stop sleeve 44 is disposed on the push rod 42. Handle 41 is rotatable design for the product uses more in a flexible way, can satisfy the diversified demand of user, through the cooperation of zigzag cutting ferrule 45 and zigzag stop collar 44, can realize simple nimble adjustment handle 41's angle, and easy operation practicality is strong.

In this embodiment, as shown in fig. 7 and 8, the seat mounting seat 31 and the seat 32 are rotatably connected, one of the seat 32 and the seat mounting seat 31 is provided with a buckle 321, and the other is provided with a first locking groove 311 and a second locking groove 312 which are matched with the buckle 321 and symmetrical along the rotation center of the seat 32, when the seat 32 faces the front of the frame 10, the buckle 321 is locked in the first locking groove 311, and when the seat 32 faces the rear of the frame 10, the buckle 321 is locked in the second locking groove 312. Through being equipped with assorted buckle 321 and first draw-in groove 311, second draw-in groove 312 on seat 32 and seat mount pad 31, and when seat 32 was towards this frame 10 the place ahead, this buckle 321 locks in this first draw-in groove 311, when seat 32 was towards this frame 10 rear, this buckle 321 locks in this second draw-in groove 312, realize letting seat 32 have towards the place ahead or towards the two kinds of states of back promptly, thereby satisfy the user and can more nimble use when the swift current child, can cooperate the folding of seat subassembly 30 simultaneously, can rotate seat 32 to towards frame 10 rear when folding seat subassembly 30 promptly, the back of folding back seat 32 just is close to frame 10, can further realize letting the swift current child car after folding occupy littleer space.

In this embodiment, the seat mounting seat 31 is provided with a sliding block 313, the sliding block 313 is circumferentially limited and can be vertically slidably mounted on the seat mounting seat 31, the first locking groove 311 and the second locking groove 312 are both disposed on the sliding block 313, the middle portion of the sliding block 313 is a through hole structure, and a circumferentially limited protrusion (not shown in fig. 8) is disposed in the through hole, so that the sliding block 313 can slide vertically but cannot rotate circumferentially. The first clamping groove 311 and the second clamping groove 312 are integrated on the same sliding block 313, so that the product structure is simplified; meanwhile, the sliding block 313 is circumferentially limited and can be vertically and slidably mounted on the seat mounting seat 31, so that the first clamping groove 311 and the second clamping groove 312 can be conveniently adjusted to be separated from the matching state with the buckle 321, and the seat 32 can be adjusted to be in a forward state or a backward state. A spring is provided between the slider 313 and the seat mount 31, and the spring pushes the slider 313 to move toward the side where the catch 321 is located. The first clamping groove 311, the second clamping groove 312 and the buckle 321 are in a reliable matching state by the spring pressing sliding block 313 moving to one side where the buckle 321 is located, and the seat 32 can be guaranteed to be stable and not to shake in the normal use process. The seat mounting seat 31 is provided with a sleeve 314 outside, or the sleeve 314 and the sliding block 313 are integrally formed, but in another embodiment, the sleeve 314 and the sliding block 313 may be connected to satisfy the requirement that the sleeve 314 can drive the sliding block 313 to slide. The manual control sleeve 314 slides downwards to drive the sliding block 313 to move downwards, so that the first clamping groove 311 and the second clamping groove 312 on the sliding block 313 are separated from the buckle 321, and at the moment, the seat 32 can rotate, namely, the adjustment of the seat 32 can be controlled through the sleeve 314.

In this embodiment, the latch 321 is disposed on the seat 32, and a spring is disposed between the latch 321 and the seat 32, and the spring pushes the latch 321 to move toward a side where the first latch slot 311 and the second latch slot 312 are located. The buckle 321 is pressed by the spring to move towards one side where the first clamping groove 311 and the second clamping groove 312 are located, so that the first clamping groove 311, the second clamping groove 312 and the buckle 321 are in a reliable matching state, and the seat 32 can be guaranteed to be stable and not to shake in the normal use process. When the position of the seat 32 needs to be adjusted from a forward direction (as shown in fig. 2) to a backward direction (as shown in fig. 3), the sleeve 314 is first manually moved downward, at this time, the catch 321 is separated from the first engaging groove 311, the locking state of the seat 32 is released, the seat 32 can be rotated normally, after the seat 32 is rotated until the catch 321 is deviated from the first engaging groove 311, the sleeve 314 can be released, the seat 32 can be rotated to 180 degrees continuously, and when the catch 321 is opposite to the second engaging groove 312, the catch 321 is engaged into the second engaging groove 312 under the tensioning action of the spring, so that the direction of the seat 32 is adjusted to the backward direction. Conversely, when it is desired to adjust the position of the seat 32 from rearward facing (as shown in FIG. 3) to forward facing (as shown in FIG. 2), the operation is the same and will not be described further herein.

In this embodiment, as shown in fig. 9, a pedal 50 is disposed on the front side of the seat 32, the pedal 50 is rotatably mounted on the seat 32, a pedal mounting seat 51 is disposed on the seat 32, the pedal 50 and the pedal mounting seat 51 are connected by a bolt 52, and a lock nut 53 matching with the bolt 52 is disposed on the pedal mounting seat 51. Footboard 50 is rotatable design for the product uses more in a flexible way, can satisfy user's diversified demand, and lock nut 53 overcoat has nut lid 54, thereby the user operation of being convenient for, unscrews lock nut 53, and footboard 50 is rotatable to realize the angle modulation, screws lock nut 53, and footboard 50 is compressed tightly and is fixed on footboard mount pad 51, thereby avoids the footboard angle change. Meanwhile, in order to ensure a more reliable press fit between the pedal 50 and the pedal mounting seat 51, a pressing convex hull 55 is arranged on the pedal 51, and when the locking nut 53 is screwed, the pressing convex hull 55 on the pedal 50 is pressed and fixed on the pedal mounting seat 51. In addition, the footboard 50 can cooperate with the folding of the seat assembly 30, that is, the footboard 50 can be rotated to be close to the bottom of the seat 32 when the seat assembly 30 is folded, so that the folded baby stroller can further occupy less space.

In the present embodiment, as shown in fig. 10, a sunshade 60 is provided above the seat 32, and the sunshade 60 is rotatably mounted on an upper portion of the backrest of the seat 32. The sun visor 60 is designed to be rotatable, so that the product is more flexible to use, and diversified requirements of users can be met. In this embodiment, a sun visor mounting seat 61 is disposed on the upper portion of the backrest of the seat 32, a tooth-shaped position-limiting sleeve 62 is disposed on the sun visor mounting seat 61, a tooth-shaped cutting sleeve 63 matched with the tooth-shaped position-limiting sleeve 62 is disposed on the sun visor 60, the tooth-shaped cutting sleeve 63 is connected to a spring 64, and the spring pushes the tooth-shaped cutting sleeve 63 to move toward the side where the tooth-shaped position-limiting sleeve 62 is located, so that the tooth-shaped cutting sleeve 63 and the tooth-shaped position-limiting sleeve 62 are always in a matching state, a user can rotate the sun visor 60 by using a certain force, and the sun visor 60 can be locked by matching the tooth-shaped cutting sleeve 63 and the tooth-shaped position-limiting sleeve 62 when not receiving an external force, so that the angle of the sun visor 60 can be adjusted simply and flexibly, and the operation is simple and has strong practicability. In addition, the sunshade 60 can be matched with the folding of the seat assembly 30, that is, when the seat assembly 30 is folded, the sunshade 60 can be rotated to be close to the inner side of the backrest of the seat 32, so that the folded baby stroller can further occupy less space.

In this embodiment, as shown in fig. 11, an armrest 70 is disposed on the seat 32, the armrest 70 is hinged to the seat 32, a locking portion 71 is disposed on the armrest 70, a plurality of locking slots 72 corresponding to the locking portion 71 are disposed on the seat 32, and after the locking portion 71 is locked in any one of the locking slots 72, the armrest 70 is locked. The positions of the plurality of positions of the clamping portion 71 are matched with the positions of the clamping groove 72, so that the handrail 70 can be positioned at different angles, different use requirements of users can be matched, and the practicability of products is improved. In addition, the armrest 70 can be matched with the folding of the seat assembly 30, that is, the armrest 70 can be rotated to be close to the inner side of the seat 32 when the seat assembly 30 is folded, so that the folded baby stroller can further occupy less space.

More specifically, as shown in fig. 11, the locking grooves 72 of the plurality of shift positions are circumferentially spaced apart from each other around the center of the hinge of the armrest 70 and the seat 32. Therefore, only one clamping position 71 needs to be designed, when the armrest 70 rotates, the clamping position 71 rotates together and can be switched to be matched with the clamping grooves 72 at different angles, and therefore the armrest can be locked at different angles. The position clip 71 is connected with a spring which pushes the position clip 71 to move towards the direction of the slot 72, so that the position clip 71 can be reliably clipped into the slot 72 and cannot easily slide out, and the reliability is ensured; in addition, after the blocking position 71 is separated from the blocking groove 72 of one shift position, the blocking position 71 is always in a tensioning state, and when the blocking position 71 rotates to the blocking groove 72 of the next shift position along with the armrest 70, the blocking position 71 can automatically spring into the blocking groove 72, so that the operation is more convenient. Meanwhile, a control button 73 is connected to the detent 71, the control button 73 extends to the outside of the armrest 70 and the seat 32, and the detent 71 can be separated from the notch 72 by operating the control button 73, so that the armrest 70 is unlocked. The control knob 73 can separate the detent 71 from the notch 72, so that the armrest 70 can rotate relative to the seat 32, and the operation is very convenient. As shown in fig. 11, the locking portion 71 is provided with two locking positions symmetrically disposed along the center of the armrest 70 and the seat 32, and the locking slots 72 of the plurality of gears each include two notches corresponding to the two locking positions. Through the design of two detain positions and two notches, can bear away the atress when screens 71 and draw-in groove 72 cooperate, reduce the risk that screens 71 damaged, improve the reliability of product.

In this embodiment, as shown in fig. 4 and 5, the second wheel 13 is disposed on the frame 10, and when the wheel mounting seat 21 is unlocked to rotate downward close to the frame 10, the first wheel 22 and the second wheel 13 are staggered. After the wheel assembly 20 is folded to be close to the frame 10, the first wheel 22 and the second wheel 13 are staggered to realize more compact folding, so that the folded baby stroller occupies less space.

In this embodiment, when the stroller is in a use state (as shown in fig. 1 and fig. 2), the stroller needs to be folded, the adjustment pedal 50, the sun visor 60, and the armrest 70 are first rotated to be close to the seat 32; pushing the sleeve 314 downward controls the seat 32 to rotate to the rearward direction; then pressing the elastic buckle 43 to contract into the hollow sleeve 11 of the frame 10, and pushing the handle 41 downwards to allow the push rod 42 to be accommodated in the hollow sleeve 11; finally, during the sliding of the push rod 42, the wheel assembly 20 and the seat assembly 30 are unlocked and can be rotated downward close to the frame 10, i.e., the stroller is folded (as shown in fig. 4 and 5). On the contrary, when the stroller needs to be unfolded from the folded state to the use state, the handle 41 is firstly pulled outwards, the push rod 42 slowly slides out of the hollow sleeve 11 and is finally locked at the notch 12; subsequently, the wheel assembly 20 and the seat assembly 30 are unfolded and the seat 32 is oriented; finally, the pedals 50, the sun visor 60 and the armrests 70 are unfolded, so that the pedal is turned open for normal use.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A foldable sliding baby trolley is characterized by comprising:

the bicycle frame (10), wherein a hollow sleeve (11) is arranged on the bicycle frame (10);

the wheel assembly (20) comprises a wheel mounting seat (21) and a first wheel (22), one end of the wheel mounting seat (21) is connected with the first wheel (22), the other end of the wheel mounting seat is rotatably connected with the lower side of the frame (10), a first locking clamping position (23) is arranged on the wheel mounting seat (21), and the first locking clamping position (23) extends into and is locked in the hollow sleeve (11);

the seat assembly (30) comprises a seat mounting seat (31) and a seat (32) arranged on the seat mounting seat (31), the seat mounting seat (31) is rotatably connected to the upper side of the frame (10), a second locking clamping position (33) is arranged on the seat mounting seat (31), and the second locking clamping position (33) extends into and is locked in the hollow sleeve (11);

the push handle (40) comprises a handle (41) and a push rod (42), the handle (41) is arranged at the upper end of the push rod (42), the lower end of the push rod (42) extends into the hollow sleeve (11), the push rod (42) and the hollow sleeve (11) are provided with locking structures, and when the locking structures are in a locking state, the push rod (42) and the hollow sleeve (11) are locked; when the locking structure is in an unlocking state, the push rod (42) can slide in the hollow sleeve (11);

when the push rod (42) slides to the first locking position (23) along the hollow sleeve (11), the first locking position (23) is pushed to slide out of the hollow sleeve (11), and the wheel mounting seat (21) is unlocked and can rotate downwards to be close to the frame (10); when the push rod (42) slides to the second locking position (33) along the hollow sleeve (11), the second locking position (33) is pushed to slide out of the hollow sleeve (11), and the seat mounting seat (31) can be unlocked and can be downwards rotated to be close to the frame (10).

2. Foldable stroller according to claim 1, characterized in that said locking structure comprises an elastic catch (43) provided on said push rod (42) and a corresponding notch (12) provided in said hollow sleeve (11), said locking structure being in a locked state when said elastic catch (43) is snapped into said notch (12); after the elastic buckle (43) slides out of the notch (12), the locking structure is in an unlocking state.

3. Foldable stroller according to claim 1, characterized in that a first elastic member (24) is provided between said first locking detent (23) and said wheel mounting seat (21), and an inclined guide surface corresponding to said push rod (42) is provided at the end of said first locking detent (23).

4. Foldable stroller according to claim 1, wherein a second elastic member (34) is provided between said second lock detent (33) and said seat mount (31), and an end of said second lock detent (33) is provided with an inclined guide surface corresponding to said push rod (42).

5. Foldable stroller according to claim 1, characterized in that said seat mount (31) and said seat (32) are rotatably connected, one of said seat (32) and said seat mount (31) is provided with a buckle (321), the other is provided with a first locking slot (311) and a second locking slot (312) matching said buckle (321) and symmetrical about the center of rotation of said seat (32), said buckle (321) is locked in said first locking slot (311) when said seat (32) faces the front of said frame (10), and said buckle (321) is locked in said second locking slot (312) when said seat (32) faces the rear of said frame (10).

6. Foldable baby stroller according to claim 5, wherein a pedal (50) is provided at the front side of the seat (32), the pedal (50) is rotatably mounted on the seat (32), a pedal mounting seat (51) is provided on the seat (32), the pedal (50) and the pedal mounting seat (51) are connected by a bolt (52), and a locking nut (53) matching with the bolt (52) is provided on the pedal mounting seat (51).

7. Foldable stroller according to claim 5, characterized in that a sun visor (60) is provided above said seat (32), said sun visor (60) being rotatably mounted to the upper part of the backrest of said seat (32).

8. Foldable baby stroller according to claim 5, wherein the seat (32) is provided with an armrest (70), the armrest (70) is hinged to the seat (32), the armrest (70) is provided with a locking portion (71), the seat (32) is provided with a plurality of engaging slots (72) corresponding to the locking portion (71), and the armrest (70) is locked after the locking portion (71) is engaged into any one of the engaging slots (72).

9. Foldable baby stroller according to any of claims 1 to 8, characterized in that the handle (41) is rotatably connected to the push rod (42), the handle (41) is provided with a saw-toothed stop collar (44), and the push rod (42) is provided with a saw-toothed cutting sleeve (45) matching with the saw-toothed stop collar (44).

10. A foldable stroller according to any of claims 7-9, wherein a second wheel (13) is provided on said frame (10), said second wheel (13) and said first wheel (22) being staggered when said wheel mount (21) is unlocked and rotated downwardly proximate to said frame (10).