CN217649500U

CN217649500U - Children's barrow

Info

Publication number: CN217649500U
Application number: CN202221777183.4U
Authority: CN
Inventors: 唐凌伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-25
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a children's shallow, including folding bottom sprag frame, the bottom sprag frame lower extreme is equipped with the wheel, be connected with the upper portion support frame that can bear the weight of the seat subassembly on the bottom sprag frame, the upper portion support frame rotates and draws close the push rod subassembly on folding bottom sprag frame including bottom sprag frame relatively, the push rod subassembly lower extreme is connected with horizontal support piece, the bottom sprag frame upper end is equipped with down connecting portion, be equipped with on the horizontal support piece and rotate around vertical axis with lower connecting portion and be connected and make the relative bottom sprag frame of upper portion support frame can be at the rotatory last connecting portion of horizontal plane direction, at least one side that connecting portion were equipped with first lock location on the bottom sprag frame and lie in down, at least one side that connecting portion were equipped with on the upper portion support frame and lie in is equipped with the second sticking department that can fix a position the kayser with corresponding first lock. The utility model discloses simple structure, stability is good.

Description

Children's barrow

[ technical field ] A method for producing a semiconductor device

The utility model relates to a children's shallow.

[ background of the invention ]

The baby stroller is a common product in the growth process of children. Present children's shallow generally includes folding bottom sprag frame, be connected with the upper portion support frame that is used for bearing the seat subassembly on the bottom sprag frame, in order to realize the front and back switching-over of seat subassembly, the relative bottom sprag frame of seat subassembly is generally taken to the upper portion support frame rotatory on the horizontal plane direction, its concrete structure is connecting seat under the upper end middle part of bottom sprag frame sets up, the connecting seat is gone up in the lower extreme middle part of upper portion support frame, through last connecting seat and lower connecting seat realization upper portion support frame and bottom sprag frame's rotatable coupling, and locking mechanical system between upper portion support frame and the bottom sprag frame sets up at last connecting seat equally under and between the connecting seat. Therefore, the supporting point of the upper supporting frame of the baby stroller is only supported at the position of the lower connecting seat, the upper half part of the baby stroller is easy to shake, and the stability is not high.

Therefore, the present invention is based on the above disadvantages.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a baby stroller with simple structure and good stability.

The utility model discloses a realize through following technical scheme:

the utility model provides a child stroller, includes folding bottom sprag frame 1, bottom sprag frame 1 lower extreme be equipped with wheel 1a, bottom sprag frame 1 on be connected with the upper portion support frame 3 that can bear seat subassembly 2, upper portion support frame 3 including can rotate and draw close the push rod subassembly 31 on the bottom sprag frame 1 relatively bottom sprag frame 1, push rod subassembly 31 lower extreme be connected with horizontal support piece 32, bottom sprag frame 1 upper end be equipped with down connecting portion 11, horizontal support piece 32 on be equipped with lower connecting portion 11 around vertical axis A rotate be connected and make upper portion support frame 3 can be relative bottom sprag frame 1 at the rotatory last connecting portion 321 of horizontal plane direction, bottom sprag frame 1 on and be located connecting portion 11 at least one side be equipped with first locking position 41, upper portion support frame 3 on and be located at least one side of connecting portion 321 be equipped with the second locking position 42 that can block with corresponding first locking position 41, push rod subassembly 31 and horizontal support piece 32 rotatable coupling, push rod subassembly 31 and horizontal support piece 32 between be equipped with the first locking structure 33 that can lock piece can lock, first locking structure 33 include on the horizontal support piece 32, the sliding lock piece subassembly 331 is equipped with the unlocking piece component 331 and pulling element 331 on the locking piece 331 and locking piece 332 still be equipped with unlocking piece 332, the locking piece 331 when the locking piece component is equipped with unlocking piece 331 and pulling locking piece 333 that can break away from the locking piece 332 still be equipped with unlocking piece 332 on the locking piece 332.

The lateral support member 32 is provided with a protrusion 322 capable of extending into the push rod assembly 31, the locking position 331 comprises a plurality of first grooves 3311 radially disposed along the protrusion 322 and a plurality of second grooves 3312 laterally disposed along the lateral support member 32, the locking member 332 comprises a locking block 3321 capable of being clamped into the first grooves 3311, and the locking block 3321 is provided with an extending portion 3322 transversely extending and capable of being clamped into the second grooves 3312.

The transverse support member 32 is provided with a bearing part 34 for bearing the seat assembly 2, the seat assembly 2 comprises a seat part 21 capable of being seated, the seat part 21 is connected with an installation seat 22 which can rotate relative to the seat part and can be detachably connected to the bearing part 34, the installation seat 22 is connected with a backrest part 23 in a rotating way, a gear adjusting assembly 24 capable of adjusting the inclined gears of the backrest part 23 and the seat part 21 is arranged between the backrest part 23 and the installation seat 22, and a first locking assembly 91 capable of locking the bearing part 34 and the seat assembly 2 is arranged among the installation seat 22, the backrest part 23 and the bearing part 34.

The bearing part 34 is rotatably connected to the transverse support member 32 around a second axis B, a second locking assembly 92 which enables the bearing part 34 to drive the seat assembly 2 to rotate relative to the transverse support member 32 and to move close to the bottom support frame 1 in a rotating manner when the transverse support member 32, the bearing part 34 and the seat assembly 2 are unlocked is arranged among the transverse support member 32, the bearing part 34 and the seat assembly 2, a third locking assembly 93 is arranged between the installation seat 22 and the seat part 21, when the third locking assembly 93 is unlocked, the seat part 21 can rotate relative to the installation seat 22 and move close to the backrest part 23 in a rotating manner, and when the seat part 21 rotates, the seat part 21 can also unlock the second locking assembly 92 in a linkage manner.

The bearing part 34 is provided with a clamping convex block 341, the mounting seat 22 is provided with a clamping groove 221 which can be matched and clamped with the clamping convex block 341, the first locking component 91 comprises a lock tongue 911 which is connected to the bearing part 34 in a sliding manner and extends into the mounting seat 22, the mounting seat 22 is provided with a first locking position 912 into which the lock tongue 911 can be clamped, the backrest part 23 is provided with a top leaning part 913 which can push the lock tongue 911 out of the first locking position 912 when the backrest part rotates to a vertical state relative to the mounting seat 22, a first elastic resetting piece 914 is arranged between the lock tongue 911 and the bearing part 34, the bearing part 34 is provided with a second locking position 915, the mounting seat 22 is connected with a first locking piece 916 which can be clamped into or separated from the second locking position 915 in a sliding manner, the bearing part 34 is provided with an operating button 917 which can push the first locking piece 916 out of the second locking position, a second elastic resetting piece is arranged between the first locking piece 916 and the mounting seat 22, and a third elastic resetting piece 917 is arranged between the operating button 34.

Second locking subassembly 92 including locating second locking position 921 on carrier 34, horizontal support member 32 on be equipped with and can slide relatively it and go into or break away from first fastener 922 of second locking position 921, mount pad 22 and seat portion 21 between be equipped with and push away first fastener 922 and break away from first slider 923 of second locking position 921 when being the roof pressure, first slider 923 and mount pad 22 between be equipped with fourth elasticity piece 924 that resets, seat portion 21 on be equipped with and push away the protruding 925 of roof pressure that can push away first slider 923 lateral sliding when its relative mount pad 22 rotates.

The third locking assembly 93 includes a second engaging position 931 disposed on the mounting seat 22, the seat 21 is provided with a sliding block 932 capable of sliding transversely relative to the mounting seat, the sliding block 932 is connected with a second engaging member 933 capable of sliding relative to the sliding block 933 to be engaged with or disengaged from the second engaging position 931, the seat 21 is further connected with a sliding unlocking block 934 capable of driving the sliding block 932 to move when sliding relative to the sliding block 932, so that the second engaging member 933 is disengaged from the second engaging position 931, a fifth elastic resetting member 935 is disposed between the second engaging member 933 and the sliding block 932, a sixth elastic resetting member 936 is disposed between the sliding block 932 and the seat 21, and a seventh elastic resetting member 937 is disposed between the sliding unlocking block 934 and the seat 21.

First locking positions 41 are arranged on the bottom support frame 1 and positioned on the left side and the right side of the lower connecting part 11, second locking parts 42 capable of being locked with the corresponding first locking positions 41 are arranged on the upper support frame 3 and positioned on the left side and the right side of the upper connecting part 321, and driving parts 35 capable of unlocking the second locking parts 42 and the first locking positions 41 when the push rod assembly 31 rotates forwards to a set position relative to the transverse support member 32 are further arranged on the push rod assembly 31; the first locking position 41 is a locking groove arranged on the bottom support frame 1, the second locking part 42 comprises a locking block 421 which can slide up and down in the transverse support member 32 to be clamped with or separated from the locking groove, the locking block 421 is provided with a transverse shaft 422 which can transversely extend into the push rod assembly 31, the driving part 35 is a first driving groove which is arranged at the lower end of the push rod assembly 31 and can be used for the transverse shaft 422 to enter, when the push rod assembly 31 rotates forwards relative to the transverse support member 32, the groove wall of the first driving groove pushes the transverse shaft 422 to enable the locking block 421 to withdraw from the locking groove, and a first return spring 36 is also arranged between the transverse support member 32 and the locking block 421; the first lock positioning part 41 is a locking groove vertically arranged on the bottom support frame 1, the second lock part 42 comprises a lock block 421 which can slide up and down relative to the transverse support member 32 and is clamped with the locking groove, the transverse support member 32 is also provided with a transverse hole 51 extending along the transverse direction, the bottom support frame 1 is provided with a transverse rod 52 which can be clamped with or separated from the transverse hole 51, a third return spring 53 which can push the transverse rod 52 to return is arranged between the transverse rod 52 and the bottom support frame 1, a linkage member 6 which can ensure that the transverse rod 52 is clamped with the transverse hole 51 when the lock block 421 is clamped with the locking groove and can ensure that the transverse rod 52 is separated from the transverse hole 51 when the lock block 421 is separated from the locking groove is arranged between the transverse rod 52 and the lock block 421, the linkage member 6 comprises a sliding groove which is arranged on the bottom support frame 1 and is communicated with the locking groove, the sliding groove is internally provided with a sliding block 61 which can slide up and down in the sliding groove and can push the lock block 421 to push downwards to be clamped with the locking groove, and a sliding block 61 which can move downwards when the lock block 421 is clamped with the locking groove, and a sliding surface 61 which drives the sliding block 52 to move downwards and the sliding block 51 to return the sliding block 1; the bottom support frame 1 comprises a front frame 12 and a rear frame 13 rotatably connected with the front frame 12, a linkage rod 14 is arranged between the front frame 12 and the rear frame 13, the front end of the linkage rod 14 is hinged with the front frame 12, a transverse protruding part 15 is arranged at the rear end of the linkage rod 14, the transverse protruding part 15 is slidably connected with a sliding groove 16 on the rear frame 13, a locking device used for locking the bottom support frame 1 in a unfolding state is arranged between the linkage rod 14 and the rear frame 13, the locking device comprises a locking rod 71 which can slide relative to the bottom support frame 1 along with a sliding block 61 and can abut against the transverse protruding part 15 to prevent the transverse protruding part 15 from sliding along the sliding groove 16, a locking groove 71 communicated with a first driving groove is further arranged on the push rod assembly 31, when the push rod assembly 31 rotates backwards relative to a transverse support 32 and is closed to the bottom support frame 1, the groove wall of the second driving groove 37 pushes a locking block 422 to enable the locking block 421 to withdraw from the inside, the locking rod 71 and the sliding block 61 can be slidably connected with the sliding block 61, and a fifth return spring 72 is further arranged between the sliding groove and the transverse shaft.

Push rod subassembly 31 and bottom sprag frame 1 between be equipped with and prevent push rod subassembly 31 when push rod subassembly 31 rotates forward to the set position to and can ensure that upper portion support frame 3 and seat subassembly 2 only towards the limit structure 8 of one direction rotation on the horizontal plane direction, limit structure 8 including establishing the portion of colluding 81 at the push rod subassembly 31 lower extreme, bottom sprag frame 1 on be equipped with outside convex stopper 82, stopper 82 rear side be equipped with can be pushed away by portion of colluding 81 and make stopper 82 horizontal indentation's sloping wall 82a when upper portion support frame 3 is rotatory on the horizontal plane direction relative to bottom sprag frame 1, stopper 82 and bottom sprag frame 1 between still be equipped with and promote stopper 82 outside reset sixth reset spring 83, stopper 82 front side still be equipped with and can support and lean on with portion 81 and prevent upper portion support frame 3 counter rotation after stopper 82 resets outside and support and lean on wall 82b.

The bottom support frame 1 comprises a front frame 12 and a rear frame 13 which can be unfolded or folded relative to the front frame 12, a transverse component 10 which transversely extends is arranged at the upper end of the front frame 12 or the rear frame 13, a lower connecting part 11 is arranged on the transverse component 10, a first locking part 41 is arranged at the upper end of the rear frame 13, and a second locking part 42 is arranged at the lower end of a push rod assembly 31.

Compared with the prior art, the utility model discloses there is following advantage: in this embodiment, the bottom sprag frame on and be located the left and right sides of lower connecting portion and all be equipped with first lock location, the upper sprag frame on and be located the left and right sides of upper connecting portion all be equipped with the second sticking department that can fix a position the kayser with corresponding first lock. The upper supporting frame and the bottom supporting frame are rotatably connected through the upper connecting portion and the lower connecting portion, so that the upper supporting frame can rotate in the horizontal plane direction relative to the bottom supporting frame, and the front and back directions of the seat assembly of the stroller are changed. After the seat assembly of the child stroller is reversed, the push rod assembly is located on the rear side of the seat assembly, and therefore the push rod assembly needs to be moved to the front side of the seat assembly, so that an adult can push the child in the seat assembly conveniently. And, the both sides that are located lower junction portion on the bottom sprag frame are provided with first lock location, and be equipped with on the upper sprag frame and correspond the complex second sticking department with first lock location, the cooperation through second sticking department and first lock location makes the upper sprag frame not only rely on this a support location of lower junction portion to support, thereby the position that is located outside the lower junction portion on the bottom sprag frame has also realized the support to the upper sprag frame, multi-point support has been realized, make the upper sprag frame of children's shallow be difficult for rocking, good stability, and the security is higher.

[ description of the drawings ]

FIG. 1 is a perspective view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a side view of the seat assembly of the present invention during a forward and rearward reversal;

FIG. 4 is a side view of the seat assembly of the present invention after reversing the front and rear directions;

FIG. 5 is a perspective view of the present invention with the seat assembly removed;

fig. 6 is an exploded view of the present invention;

fig. 7 is one of exploded views of components of the present invention;

fig. 8 is a second exploded view of the components of the present invention;

fig. 9 is a third exploded view of the components of the present invention;

fig. 10 is a fourth exploded view of the components of the present invention;

fig. 11 is a perspective view of a component of the present invention;

FIG. 12 is one of the exploded views of the second and third locking assemblies of the present invention;

fig. 13 is a second exploded view of the second and third locking assemblies of the present invention;

fig. 14 is a third exploded view of the second and third locking assemblies of the present invention;

fig. 15 is a fourth exploded view of the second and third locking assemblies of the present invention;

figure 16 is a partial cross-sectional view of a third closure assembly of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 6, a stroller includes a foldable bottom support frame 1, a wheel 1a is disposed at a lower end of the bottom support frame 1, an upper support frame 3 capable of supporting a seat assembly 2 is connected to the bottom support frame 1, the upper support frame 3 includes a push rod assembly 31 capable of rotating relative to the bottom support frame 1 and being folded on the bottom support frame 1, a transverse support member 32 is connected to a lower end of the push rod assembly 31, a lower connection member 11 is disposed at an upper end of the bottom support frame 1, an upper connection member 321 rotatably connected to the lower connection member 11 around a vertical axis a so that the upper support frame 3 can rotate in a horizontal direction relative to the bottom support frame 1 is disposed on the bottom support frame 1 and on at least one side of the lower connection member 11 is disposed with a first locking member 41, a second locking member 42 capable of locking with the corresponding first locking member 41 is disposed on the upper support frame 3 and on at least one side of the upper connection member 321, the push rod assembly 31 is connected to the transverse support member 32, the first locking member 33 includes a plurality of locking members 331 disposed on the transverse support member 32, a sliding member 331 is disposed on the push rod assembly 31 and a sliding member 332 capable of being separated from the sliding member 332, and an unlocking member 333, and an unlocking member 332 capable of being pulled by pulling the sliding member 332 and pulling the sliding member 332, and an unlocking member 332, wherein the locking member 332 is disposed between the locking member 332 and the sliding member 332 and the locking member 332.

In this embodiment, the bottom bracket 1 is provided with first locking locations 41 on the left and right sides of the lower connecting portion 11, and the upper bracket 3 is provided with second locking portions 42 capable of locking with the corresponding first locking locations 41 on the left and right sides of the upper connecting portion 321. The upper support frame 3 and the bottom support frame 1 are rotatably connected through the upper connecting portion 321 and the lower connecting portion 11, so that the upper support frame 3 can rotate in the horizontal plane direction relative to the bottom support frame 1, and the front and back directions of the stroller seat assembly 2 can be changed. When the seat assembly 2 of the stroller is reversed, the push rod assembly 31 is still located at the rear side of the seat assembly 2, and therefore the push rod assembly 31 needs to be moved to the front side of the seat assembly 2, so as to facilitate the adult to push the child facing the seat assembly 2, first, the sliding unlocking part 333 is pulled, the sliding unlocking part 333 drives the pulling element 334 to move upwards when being pulled, the pulling element 334 drives the locking part 332 to move when being pulled, the locking part 332 is simultaneously disengaged from the locking position 331, the push rod assembly 31 can rotate relative to the transverse support 32, when the push rod assembly 31 is rotated to the front side of the seat assembly 2 and reaches a predetermined position, the elastic part 335 pushes the locking part 332 to reset, the locking part 332 slides reversely and simultaneously snaps into the locking position 331 corresponding to the position, the push rod assembly 31 and the transverse support 32 are locked again, the reversing of the push rod assembly 31 is completed, the operation is simple, and the first locking structure 33 is simple in structure, occupies a small space, and the unlocking is convenient. Moreover, the bottom support frame 1 is provided with the first lock positions 41 on the two sides of the lower connecting portion 11, the upper support frame 3 is provided with the second lock portions 42 correspondingly matched with the first lock positions 41, the upper support frame 3 is only supported by the supporting position of the lower connecting portion 11 through the matching of the second lock portions 42 and the first lock positions 41, so that the upper support frame 3 is supported by the supporting position of the lower connecting portion 11 on the bottom support frame 1, the supporting of the upper support frame 3 is realized at the position outside the lower connecting portion 11, multi-point supporting is realized, the upper support frame 3 of the stroller is not easy to shake, the stability is good, and the safety is higher.

As shown in fig. 8 to 9, the lateral support 32 is provided with a protrusion 322 capable of extending into the push rod assembly 31, the locking part 331 includes a plurality of first grooves 3311 radially disposed along the protrusion 322 and a plurality of second grooves 3312 laterally disposed along the lateral support 32, the locking member 332 includes a locking block 3321 capable of being snapped into the first grooves 3311, and the locking block 3321 is provided with an extension portion 3322 laterally extending and capable of being snapped into the second grooves 3312. Lateral support 32 snaps into push rod assembly 31 via protrusion 322, making the connection between the two more tight. The first groove 3311 is radially disposed on the protrusion 322, and the second groove 3312 is transversely disposed on the transverse support member 32, so that the locking block 3321 and the extension portion 3322 are required to be locked simultaneously when locking, both the transverse position and the radial position can be locked, the locking effect is better, the transverse support member 32 and the push rod assembly 31 are locked more stably, and the shake does not occur.

As shown in fig. 2 to 15, the transverse support member 32 is provided with a bearing portion 34 for bearing the seat assembly 2, the seat assembly 2 includes a seating portion 21 capable of seating, the seating portion 21 is connected with an installation seat 22 which is rotatably and detachably connected to the bearing portion 34, the installation seat 22 is rotatably connected with a backrest portion 23, a shift adjusting assembly 24 capable of adjusting the tilt shift of the backrest portion 23 and the seat portion 21 is provided between the backrest portion 23 and the installation seat 22, and a first locking assembly 91 capable of locking the bearing portion 34 and the seat assembly 2 with each other is provided between the installation seat 22, the backrest portion 23 and the bearing portion 34. After the gear adjusting assembly 24 is unlocked, the user can adjust the tilting gear of the backrest part 23 relative to the seat part 21 according to the requirement. When the first locking assembly 91 is unlocked, the entire seat assembly 2 can be removed from the upper support frame 3 for easy removal.

As shown in fig. 1 to 15, the supporting portion 34 is rotatably connected to the transverse supporting member 32 around a second axis B, a second locking member 92 is disposed between the transverse supporting member 32, the supporting portion 34 and the seat member 2 for allowing the supporting portion 34 to rotate relative to the transverse supporting member 32 and move toward the bottom bracket 1 when unlocked, a third locking member 93 is disposed between the mounting seat 22 and the seat portion 21, when the third locking member 93 is unlocked, the seat portion 21 can rotate relative to the mounting seat 22 and move toward the backrest portion 23, and when the seat portion 21 rotates, the seat portion 21 can also unlock the second locking member 92 in a linked manner. When the third locking assembly 93 is unlocked, the seat portion 21 rotates towards the backrest portion 23 relative to the mounting seat 22, and the second locking assembly 92 is interlocked and unlocked during the process that the seat portion 21 rotates towards the backrest portion 23 relative to the mounting seat 22, so that the whole seat assembly 2 can rotate and fold relative to the upper support frame 3.

As shown in fig. 12 to 13, the supporting portion 34 is provided with an engaging protrusion 341, the mounting seat 22 is provided with an engaging groove 221 capable of engaging with the engaging protrusion 341 in a matching manner, the first locking assembly 91 includes a locking tongue 911 slidably connected to the supporting portion 34 and extending into the mounting seat 22, the mounting seat 22 is provided with a first locking position 912 capable of allowing the locking tongue 911 to be locked in, the backrest portion 23 is provided with a propping portion 913 capable of propping the locking tongue 911 out of the first locking position 912 when the backrest portion rotates to a vertical state relative to the mounting seat 22, a first elastic reset piece 914 is provided between the locking tongue 911 and the supporting portion 34, the supporting portion 34 is provided with a second locking position 915, the mounting seat 22 is slidably connected with a first locking piece 916 capable of being locked in or separated from the second locking position 915, the supporting portion 34 is provided with an operating button 916 capable of propping the first locking piece out of the second locking position 915, a second elastic reset piece 916 is provided between the first locking piece 916 and the mounting seat 22, and a third elastic reset piece 917 is provided between the operating button 918 and the supporting portion 34. The supporting portion 34 and the mounting base 22 are engaged with each other by the engaging protrusion 341 and the engaging groove 221, and are locked by the first locking component 91, so as to prevent the seat component 2 from being separated from the supporting portion 34. When the seat assembly 2 needs to be detached from the bearing part 34, the gear adjusting assembly 24 is unlocked, the backrest part 23 is rotated to be perpendicular to the horizontal plane, the abutting part 913 on the backrest part 23 gradually abuts against the bolt 911 in the rotation process of the backrest part 23, the bolt 911 is gradually ejected from the first locking position 912, the operating button 917 is pressed, the first locking piece 916 is ejected from the second locking position 915 by the operating button 917, the mounting seat 22 is separated from the bearing part 34 at the moment, the seat assembly 2 is lifted upwards, and the whole seat assembly 2 can be taken down from the upper supporting frame 3.

As shown in fig. 13 to 14, the second locking assembly 92 includes a second locking position 921 disposed on the supporting portion 34, the transverse supporting member 32 is provided with a first engaging member 922 capable of sliding relative to the transverse supporting member to be engaged with or disengaged from the second locking position 921, a first sliding member 923 capable of pushing the first engaging member 922 to disengage from the second locking position 921 is disposed between the mounting seat 22 and the seat portion 21 when being pressed, a fourth elastic restoring member 924 is disposed between the first sliding member 923 and the mounting seat 22, and the seat portion 21 is provided with a pressing protrusion 925 capable of pushing the first sliding member 923 to slide transversely when rotating relative to the mounting seat 22.

As shown in fig. 13 to 15, the third locking assembly 93 includes a second engaging position 931 disposed on the mounting seat 22, a slider 932 capable of sliding transversely relative to the seat 21 is disposed on the seat 21, a second engaging member 933 capable of sliding relative to the slider 932 and engaging or disengaging the second engaging position 931 is connected to the slider 932, a slide unlocking block 934 capable of driving the slider 932 to move when sliding relative to the seat 21 so as to disengage the second engaging member 933 from the second engaging position 931 is further connected to the seat 21, a fifth elastic reset member 935 is disposed between the second engaging member 933 and the slider 932, a sixth elastic reset member 936 is disposed between the slider 932 and the seat 21, and a seventh elastic reset member 937 is disposed between the slide unlocking block 934 and the seat 21.

When the seat assembly 2 needs to be rotated and folded, the third locking assembly 93 needs to be unlocked first, the sliding unlocking block 934 is operated, the inclined surface of the sliding unlocking block 934 abuts against the slider 932 when sliding, so that the sliding unlocking block 934 drives the slider 932 to slide laterally, at this time, the second engaging member 933 on the slider 932 can be disengaged from the second engaging position 931, at this time, the mounting seat 22 and the seat portion 21 are unlocked, the seat portion 21 can rotate relative to the mounting seat 22, when the seat portion 21 is operated to rotate relative to the mounting seat 22, the pressing protrusion 925 on the seat portion 21 gradually presses against the first sliding member 923 along with the movement thereof, the first sliding member 923 presses against the mounting seat 22 to slide laterally to press the first engaging member 922, when the first engaging member disengages from the second locking position 921, the bearing portion 34 is separated from the lateral support 32, at this time, the bearing portion 34 can rotate relative to the lateral support 32 to rotate and fold the bottom support 1.

The backrest 23 is also rotatably connected with an armrest 25, and a connecting rod 26 capable of rotating relative to the armrest 25 and the seat 21 is arranged between the armrests 25 and the seat. When the seat portion 21 rotates relative to the mounting seat 22 and is folded in a rotating manner, the connecting rod 26 and the armrest 25 are driven to be close to the backrest portion 23 and folded, and meanwhile, when the seat assembly 2 is unfolded, the armrest 25 and the connecting rod 26 are matched with the backrest portion 23 and the seat portion 21 to form a sitting base, so that a child can sit more safely.

As shown in fig. 2 to 8, the push rod assembly 31 is further provided with a driving portion 35 capable of unlocking the second locking portion 42 from the first locking position 41 when the push rod assembly is rotated forward to a set position relative to the transverse support 32. When the seat assembly 2 needs to be reversed back and forth, the first locking structure 33 is unlocked, then the push rod assembly 31 is rotated forwards, the push rod assembly 31 drives the second locking part 42 and the first locking part 41 to be unlocked through the driving part 35 on the push rod assembly when rotating to the set position, at this time, the upper support frame 3 can be rotated around the vertical axis A relative to the whole bottom support frame 1, so that the seat assembly 2 is reversed, after the upper support frame 3 rotates 180 degrees, the push rod assembly 31 is rotated backwards, and at this time, the second locking part 42 and the first locking part 41 are locked again and support the upper support frame 3.

As shown in fig. 2 to 5, a limiting structure 8 is disposed between the push rod assembly 31 and the bottom bracket 1, which can prevent the push rod assembly 31 from continuing to rotate forward when the push rod assembly 31 rotates forward to a set position, and can ensure that the upper bracket 3 and the seat assembly 2 rotate only in one direction in the horizontal direction. The limiting structure 8 prevents the push rod assembly 31 from rotating forward to a position where the second locking portion 42 and the first locking portion 41 can rotate forward, so that the operation of rotating and reversing the seat assembly 2 by the push rod assembly 3 is more convenient and stable, and the push rod assembly 31 is prevented from falling forward onto the bottom support frame 1. In addition, the limiting structure 8 also enables the upper support frame 3 to rotate only in one direction after the second locking part 42 is unlocked with the first locking position 41, thereby facilitating the operation of a user.

As shown in fig. 2, fig. 3 and fig. 7, the limiting structure 8 includes a hook 81 disposed at the lower end of the push rod assembly 31, the bottom support frame 1 is provided with a limiting block 82 protruding outward, the rear side of the limiting block 82 is provided with an inclined wall 82a which can be pushed by the hook 81 to enable the limiting block 82 to retract transversely when the upper support frame 3 rotates in the horizontal plane direction relative to the bottom support frame 1, a sixth return spring 83 which pushes the limiting block 82 to return outward is further disposed between the limiting block 82 and the bottom support frame 1, and a support wall 82b which can support against the hook 81 to prevent the upper support frame 3 from rotating reversely after the limiting block 82 returns outward is further disposed at the front side of the limiting block 82. When the push rod assembly 31 rotates forwards to the set position, the hook part 81 abuts against the abutting wall 82b of the limit block 82, the second locking part 42 is separated from the first locking part 41, the abutting wall 82b prevents the push rod assembly 31 from rotating forwards, and the push rod assembly 31 is ensured to carry the seat assembly 2 to rotate towards a set direction in the horizontal plane direction, so that the reversing operation of the seat assembly 2 is stable and reliable. When the upper support frame 3 rotates in the horizontal direction, the hook portions 81 on both sides of the push rod assembly 31 may have positions exchanged, and the hook portions 81 may press the inclined wall 82a on the limiting block 82, so that the limiting block 82 retracts, and when the hook portions 81 pass through the limiting block 82, the abutting walls 82b may abut against the hook portions 81 to prevent the upper support frame 3 from rotating reversely.

As shown in fig. 6 to 8, the first locking position 41 is a locking groove formed on the bottom bracket 1, the second locking portion 42 includes a locking block 421 capable of sliding up and down in the transverse support member 32 to engage with or disengage from the locking groove, the locking block 421 is provided with a transverse shaft 422 capable of transversely extending into the push rod assembly 31, the driving portion 35 is a first driving groove formed at the lower end of the push rod assembly 31 and capable of allowing the transverse shaft 422 to enter, when the push rod assembly 31 rotates forward relative to the transverse support member 32, the groove wall of the first driving groove pushes the transverse shaft 422 to enable the locking block 421 to withdraw from the locking groove, and a first return spring 36 is further disposed between the transverse support member 32 and the locking block 421. When push rod assembly 31 rotates forward, the groove wall of the first driving groove pushes cross shaft 422, and through the change of the distance between the first driving groove and the rotating shaft center of push rod assembly 31, cross shaft 422 drives locking block 421 to withdraw from the locking groove for unlocking.

As shown in fig. 6 and 7, the first locking position 41 is a locking groove vertically disposed on the bottom bracket 1, the second locking portion 42 includes a locking block 421 capable of sliding up and down relative to the transverse support member 32 to engage with the locking groove, the transverse support member 32 is further provided with a transverse hole 51 extending in a transverse direction, the bottom bracket 1 is provided with a transverse rod 52 capable of engaging with or disengaging from the transverse hole 51, a third return spring 53 capable of pushing the transverse rod 52 to return is disposed between the transverse rod 52 and the bottom bracket 1, and a linkage member 6 capable of ensuring that the transverse rod 52 engages with the transverse hole 51 when the locking block 421 engages with the locking groove and the transverse rod 52 disengages from the transverse hole 51 when the locking block 421 disengages from the locking groove is disposed between the transverse rod 52 and the locking block 421. Therefore, the transverse rod 52 is locked with the transverse hole 51 in the transverse direction while the second locking part 42 is locked with the first locking part 41 in the vertical direction, so that the upper support frame 3 of the stroller is more stable, and the safety of the stroller is better ensured.

As shown in fig. 6, 7 and 10, the linkage member 6 includes a sliding groove, not shown, disposed on the bottom support frame 1 and communicating with the locking groove, a sliding block 61 capable of sliding up and down in the sliding groove and pushed by the locking block 421 to slide down when the locking block 421 is engaged with the locking groove, an inclined surface 62 capable of pushing the transverse rod 52 to move transversely to engage with the transverse hole 51 when the sliding block 61 slides down is disposed on the sliding block 61, and a fourth return spring 63 for returning the sliding block 61 is disposed between the sliding block 61 and the bottom support frame 1. When the second locking part 42 moves downwards to be clamped into the first locking position 41, the second locking part 42 pushes the sliding block 61 to slide downwards, the sliding block 61 pushes the transverse rod 52 to move transversely through the inclined surface 62 on the sliding block to be locked with the transverse hole 51 in the sliding process, the upper support frame 3 is ensured to be locked on the bottom support frame 1 in the transverse direction and the longitudinal direction, and the stability of the upper support frame 3 is ensured. When the second locking portion 42 moves upward to withdraw from the first locking position 41, the fourth return spring 63 urges the slide block 61 to move upward, the inclined surface 62 releases the lateral rod 52, and the third return spring 53 urges the lateral rod 52 to withdraw from the lateral hole 51.

As shown in fig. 2, 6, 10 and 11, the bottom bracket 1 includes a front frame 12 and a rear frame 13 capable of being unfolded or folded relative to the front frame 12, a transverse member 10 extending transversely is provided at an upper end of the front frame 12 or the rear frame 13, the lower connecting portion 11 is provided on the transverse member 10, the first locking position 41 is provided at an upper end of the rear frame 13, and the second locking portion 42 is provided at a lower end of the push rod assembly 31. Therefore, the lower connecting portion 11 of the cross member 10 on the bottom support frame 1 supports the upper support frame 2 at the middle position of the stroller in the left-right transverse direction, and the cooperation of the first locking portion 41 and the second locking portion 42 enables the bottom support frame 1 to support the upper support frame 2 at the two sides of the stroller, so that a supporting structure with multiple positions and multiple supporting points is formed, and the stability and safety of the stroller are ensured.

As shown in fig. 2, 10 and 11, further, the bottom support frame 1 includes a front frame 12 and a rear frame 13 rotatably connected to the front frame 12, a linkage rod 14 is disposed between the front frame 12 and the rear frame 13, a front end of the linkage rod 14 is hinged to the front frame 12, a transverse protrusion 15 is disposed at a rear end of the linkage rod 14, the transverse protrusion 15 is slidably connected to a sliding slot 16 of the rear frame 13, a locking device for locking the bottom support frame 1 in an unfolded state is disposed between the linkage rod 14 and the rear frame 13, the locking device includes a locking rod 71 which can slide relative to the bottom support frame 1 along with the sliding block 61 and can abut against the transverse protrusion 15 to prevent the transverse protrusion 15 from sliding along the sliding slot 16, the locking rod 71 is slidably connected to the rear frame 61, a fifth return spring 72 is disposed between the locking rod 14 and the locking groove, a second driving groove 37 communicated with the first driving groove is disposed on the push rod assembly 31, and when the push rod assembly 31 rotates backward relative to the transverse support 32 and approaches the bottom support frame 1, the second driving groove 421 of the sliding rod drives the locking groove to withdraw from the locking groove. When the stroller needs to be folded, the first locking structure 33 is unlocked, then the push rod assembly 31 is rotated backwards to make the push rod assembly 31 close to the rear frame 13, in the process, the groove wall of the second driving groove 37 pushes the transverse shaft 422, so that the transverse shaft 422 carries the locking block 421 to move upwards, at this time, the locking block 421 is separated from the first locking position 41, the sliding block 61 carries the locking rod 71 to move upwards under the action of the fourth return spring 63, in the process, the transverse rod 52 is separated from the transverse hole 51, the locking rod 71 does not abut against the transverse bulge 15 any more, at this time, only the upper end of the bottom support frame 1 needs to be lifted upwards, under the gravity action of the front frame 12, the front frame 12 rotates close to the rear frame 13, and the transverse bulge 15 slides downwards in the sliding groove 16. During the unfolding process of the child, the front frame 12 is rotated to unfold, then the push rod assembly 31 is rotated to unfold, when the push rod assembly 31 is unfolded to the proper position, the cross shaft 422 falls into the low position of the second driving groove 37, the first return spring 36 drives the locking hole 42 to return and is clamped into the first locking position 41, and at the moment, the sliding block 61 and the locking rod 71 are pushed downwards, so that the child stroller is locked in the unfolded state. When the user first deploys push rod assembly 31, locking rod 71 is pushed to move downward, then when front frame 12 is rotated, lateral projection 15 pushes against the side wall of locking rod 71, so that locking rod 71 slides relative to sliding block 61, and when lateral projection 15 moves to the set position of slide groove 16 and does not push locking rod 71 any more, fifth return spring 72 pushes locking rod 71 to reset to abut against lateral projection 15 again, thereby locking the position of lateral projection 15 in slide groove 16. Therefore, when the stroller is unfolded, the entire stroller can be smoothly unfolded regardless of whether the push rod assembly 31 is unfolded first or the front frame 12 is unfolded first.

The folding principle of the whole vehicle is as follows: firstly, the first locking structure 33 is unlocked, the push rod assembly 31 is pushed to rotate and approach to the rear frame 13 relative to the transverse support member 32 after the first locking structure 33 is unlocked, at the moment, the locking device capable of locking the bottom support frame 1 is also driven to be unlocked, at the moment, the bottom support frame 1 is still in an unfolded state, then the third locking assembly 93 is unlocked, after the third locking assembly 93 is unlocked, the seat part 21 can rotate relative to the installation seat 22 to move upwards to approach and fold with the backrest part 23, in the rotating process of the seat part 21, the third locking assembly 93 is unlocked in a linkage mode, the bearing part 34 drives the seat assembly 2 to rotate and approach to the front frame 12 or the rear frame 13 relative to the transverse support member 32 around the second axis B, after the push rod assembly 31 and the seat assembly 2 rotate to the proper position, the upper end of the bottom support frame 1 is lifted upwards, and under the action of gravity of the front frame 12, the front frame 12 rotates and approaches to the rear frame 13, so that the folding of the whole vehicle is completed, and the operation is convenient.

Claims

1. A stroller, characterized in that: comprises a foldable bottom support frame (1), wheels (1 a) are arranged at the lower end of the bottom support frame (1), an upper support frame (3) capable of bearing a seat component (2) is connected onto the bottom support frame (1), the upper support frame (3) comprises a push rod component (31) which can rotate relative to the bottom support frame (1) and is folded onto the bottom support frame (1), a transverse support component (32) is connected with the lower end of the push rod component (31), a lower connecting part (11) is arranged at the upper end of the bottom support frame (1), a first locking location (41) is arranged on at least one side of the bottom support frame (1) and positioned on the lower connecting part (11) and is rotatably connected with the lower connecting part (11) around a vertical axis (A) so that the upper support frame (3) can rotate relative to the bottom support frame (1) in the horizontal plane direction, a second locking part (42) capable of being locked with the corresponding first locking location (41) is arranged on at least one side of the upper support frame (3) and positioned on the lower connecting part (11), a locking part structure capable of rotatably connecting the push rod component (31) and a locking part (32) is arranged between the upper support frame (3) and the transverse support component (31), first locking structure (33) including locating a plurality of lock positions (331) on horizontal support piece (32), push rod subassembly (31) on still be equipped with locking piece (332) that can slide relatively and go into or break away from lock position (331), push rod subassembly (31) on still be equipped with slip unlocking piece (333), slip unlocking piece (333) and locking piece (332 between be equipped with and can make locking piece (332) break away from pulling element (334) of lock position (331) when slip unlocking piece (333) is pulled, locking piece (332) and push rod subassembly (31) between still be equipped with elastic component (335).

2. The stroller of claim 1, wherein: horizontal support piece (32) be equipped with can stretch into protruding (322) in push rod subassembly (31), lock position (331) including along protruding (322) radial a plurality of first recess (3311) that set up and along horizontal a plurality of second recess (3312) that set up of horizontal support piece (32), locking piece (332) including can block into locking block (3321) in first recess (3311), locking block (3321) on be equipped with horizontal extension and can block into extension (3322) in second recess (3312).

3. The stroller of claim 1, wherein: transverse support member (32) on be equipped with bearing part (34) that is used for bearing weight of seat subassembly (2), seat subassembly (2) including seat portion (21) that can take, seat portion (21) on be connected with installation seat (22) that can rotate and detachably connect on bearing part (34) relatively, installation seat (22) on rotate and be connected with back portion (23), back portion (23) and installation seat (22) between be equipped with gear adjusting component (24) that can adjust back portion (23) and seat portion (21) tilt gear, installation seat (22), back portion (23) and bearing part (34) between be equipped with first locking component (91) that can lock bearing part (34) and seat subassembly (2) each other.

4. The stroller of claim 3, wherein: the bearing part (34) is rotatably connected to the transverse supporting part (32) around a second axis (B), a second locking component (92) which can enable the bearing part (34) to drive the seat component (2) to rotate relative to the transverse supporting part (32) and to approach towards the bottom supporting frame (1) in a rotating mode when the transverse supporting part (32), the bearing part (34) and the seat component (2) are unlocked is arranged between the transverse supporting part (32), a third locking component (93) is arranged between the installation seat (22) and the seat part (21), and the seat part (21) can rotate relative to the installation seat (22) to approach towards the backrest part (23) when the third locking component (93) is unlocked and the seat part (21) can also unlock the second locking component (92) in a linkage mode when the seat part (21) rotates.

5. The stroller of claim 3, wherein: the bearing part (34) is provided with a clamping convex block (341), the mounting seat (22) is provided with a clamping groove (221) which can be matched and clamped with the clamping convex block (341), the first locking component (91) comprises a bolt (911) which is connected on the bearing part (34) in a sliding way and extends into the mounting seat (22), a first locking position (912) which can be clamped by the locking bolt (911) is arranged on the mounting seat (22), the backrest part (23) is provided with an abutting part (913) which can eject the bolt (911) out of the first locking position (912) when the backrest part rotates to be vertical relative to the mounting seat (22), a first elastic reset piece (914) is arranged between the bolt (911) and the bearing part (34), the bearing part (34) is provided with a second clamping position (915), the mounting seat (22) is connected with a first clamping and locking piece (916) which can be clamped into or separated from the second clamping and locking position (915) in a sliding way, an operating button (917) which can push the first clamping and locking piece (916) out of the second clamping and locking position (915) is arranged on the bearing part (34), a second elastic reset piece (918) is arranged between the first clamping and locking piece (916) and the mounting seat (22), and a third elastic reset piece (919) is arranged between the operating button (917) and the bearing part (34).

6. The stroller of claim 3, wherein: second closure subassembly (92) including locating second closure position (921) on load-bearing part (34), horizontal support piece (32) on be equipped with first fastener (922) that can slide relatively and block into or break away from second closure position (921), mount pad (22) and seat portion (21) between be equipped with first slider (923) that can push away first fastener (922) and break away from second closure position (921) when by the roof pressure, first slider (923) and mount pad (22) between be equipped with fourth elasticity piece (924) that resets, seat portion (21) on be equipped with and can push away the protruding (925) of roof pressure of first slider (923) horizontal slip when its relative mount pad (22) rotates.

7. The stroller of claim 4, wherein: the third locking assembly (93) comprises a second clamping position (931) arranged on the mounting seat (22), a sliding block (932) capable of sliding transversely relative to the seat (21) is arranged on the seat (21), the sliding block (932) is connected with a second clamping piece (933) capable of sliding relative to the sliding block (932) and being clamped into or separated from the second clamping position (931), the seat (21) is further connected with a sliding unlocking piece (934) capable of driving the sliding block (932) to move when sliding relative to the sliding block (932) so that the second clamping piece (933) is separated from the second clamping position (931), a fifth elastic resetting piece (935) is arranged between the second clamping piece (933) and the sliding block (932), a sixth elastic resetting piece (936) is arranged between the sliding block (932) and the seat (21), and a seventh elastic resetting piece (937) is arranged between the sliding unlocking piece (934) and the seat (21).

8. The stroller of claim 1, wherein: the bottom support frame (1) is provided with first lock positioning parts (41) on the left side and the right side of the lower connecting part (11), the upper support frame (3) is provided with second lock parts (42) capable of being locked with the corresponding first lock positioning parts (41) on the left side and the right side of the upper connecting part (321), and the push rod assembly (31) is further provided with a driving part (35) capable of unlocking the second lock parts (42) and the first lock positioning parts (41) when the push rod assembly rotates forwards to a set position relative to the transverse support member (32); the locking device is characterized in that the first locking position (41) is a locking groove arranged on the bottom support frame (1), the second locking part (42) comprises a locking block (421) which can slide up and down in the transverse support member (32) to be clamped with or separated from the locking groove, a transverse shaft (422) which can transversely extend into the push rod assembly (31) is arranged on the locking block (421), the driving part (35) is a first driving groove which is arranged at the lower end of the push rod assembly (31) and can be used for the transverse shaft (422) to enter, when the push rod assembly (31) rotates forwards relative to the transverse support member (32), the groove wall of the first driving groove pushes the transverse shaft (422) to enable the locking block (421) to withdraw from the locking groove, and a first return spring (36) is arranged between the transverse support member (32) and the locking block (421); the locking device is characterized in that the first locking position (41) is a locking groove vertically arranged on the bottom support frame (1), the second locking part (42) comprises a locking block (421) which can slide up and down relative to the transverse support piece (32) and is clamped with the locking groove, a transverse hole (51) extending along the transverse direction is further arranged on the transverse support piece (32), a transverse rod (52) which can be clamped with or separated from the transverse hole (51) is arranged on the bottom support frame (1), a third reset spring (53) which can push the transverse rod (52) to reset is arranged between the transverse rod (52) and the locking block (421), a locking groove (6) which can ensure that the transverse rod (52) is clamped with the transverse hole (51) when the locking block (421) is clamped with the locking groove and can push the transverse rod (52) to be separated from the transverse hole (51) when the locking block (421) is separated from the locking groove is arranged between the transverse rod (52) and the locking groove, the linkage member (6) comprises a sliding groove (61) which is arranged on the bottom support frame (1) and is communicated with the sliding groove, a sliding block (421) which can slide up and is pushed down when the sliding block (421) is clamped with the sliding groove (61), a sliding block (61) which can slide up and can be pushed down, a fourth return spring (63) for driving the sliding block (61) to return is arranged between the sliding block (61) and the bottom support frame (1); the bottom support frame (1) comprises a front frame (12) and a rear frame (13) rotatably connected with the front frame (12), a linkage rod (14) is arranged between the front frame (12) and the rear frame (13), the front end of the linkage rod (14) is hinged with the front frame (12), a transverse protruding part (15) is arranged at the rear end of the linkage rod (14), the transverse protruding part (15) is slidably connected with a sliding groove (16) on the rear frame (13), a locking device used for locking the bottom support frame (1) in an unfolded state is arranged between the linkage rod (14) and the rear frame (13), the locking device comprises a locking groove (71) which can follow the locking rod (61) to slide relative to the bottom support frame (1) and can abut against the transverse protruding part (15) to prevent the transverse protruding part (15) from sliding along the sliding groove (16), a second driving groove (37) communicated with the first driving groove is further arranged on the push rod assembly (31), when the push rod assembly (31) rotates relative to the transverse support member (32) and approaches the transverse support frame (16) to slide, a sliding groove (71) to enable the sliding block (421) to move backwards from the sliding groove (422), and the sliding groove (422) to be connected with the sliding block (422) which drives the sliding groove (71) and the sliding groove wall of the sliding groove (71) which drives the sliding groove (21) to push rod assembly (31), and a fifth return spring (72) is arranged between the first and the second return springs.

9. Child stroller according to claim 1 or 2, characterized in that: push rod subassembly (31) and bottom sprag frame (1) between be equipped with and prevent push rod subassembly (31) to continue to rotate forward when push rod subassembly (31) forward rotates the settlement position to and can ensure that upper portion support frame (3) and seat subassembly (2) only towards a rotatory limit structure (8) of direction on the horizontal plane direction, limit structure (8) including establishing colluding portion (81) at push rod subassembly (31) lower extreme, bottom sprag frame (1) on be equipped with outside convex stopper (82), stopper (82) rear side be equipped with can be pushed away by colluding portion (81) and make stopper (82) horizontal indentation's sloping wall (82 a) when upper portion support frame (3) relative bottom sprag frame (1) is rotatory on the horizontal plane direction, stopper (82) and bottom sprag frame (1) between still be equipped with and promote stopper (82) sixth reset spring (83) that outwards reset, stopper (82) front side still be equipped with and can support and lean on and prevent the reverse rotation wall (82 b) that upper portion (3) leaned on with colluding portion (81) after stopper (82) outwards reset.

10. Child stroller according to claim 1 or 2, characterized in that: the bottom support frame (1) comprises a front frame (12) and a rear frame (13) which can be unfolded or folded relative to the front frame (12), a transverse component (10) transversely extending is arranged at the upper end of the front frame (12) or the upper end of the rear frame (13), a lower connecting part (11) is arranged on the transverse component (10), a first locking part (41) is arranged at the upper end of the rear frame (13), and a second locking part (42) is arranged at the lower end of a push rod assembly (31).