Baby stroller capable of being folded by one key

Abstract

The stroller comprises a supporting rod assembly, a handle rod assembly is hinged to the upper end of the supporting rod assembly, a rotary locking assembly is arranged between the supporting rod assembly and the handle rod assembly, an operation piece is arranged on the handle rod assembly, the lower end of the supporting rod assembly is connected with a rear wheel assembly, and the rear wheel assembly is hinged to a front wheel assembly. A lower connecting rod assembly is connected between the lower portion of the rear wheel assembly and the lower portion of the front wheel assembly, a handrail assembly capable of sliding front and back on the supporting rod assembly is slidably connected to the supporting rod assembly, a seat frame assembly is hinged to the front wheel assembly, a rotating rod capable of being driven by the handle rod assembly is hinged to the bottom of the handle rod assembly, and the rear end of the handrail assembly is connected with the rotating rod. The upper end of the rear wheel assembly is connected with the rotating rod, and the lower end of the rotating rod is connected with the lower connecting rod assembly. In the folding process, only the rotary locking assembly needs to be unlocked, and rapid gravity folding of the whole stroller is achieved under the action of gravity.

Description

[Technical field]

[0001] The invention relates to a child stroller which can be folded with one button. [Background technology]

[0002] A child stroller is a mobile tool designed for the convenience of infant travel, and baby strollers are becoming more and more popular among parents. However, while baby strollers are convenient for infant travel, the issue of carrying the stroller body is also a key concern of parents. Most strollers on the market have a folding function, but traditional strollers are large in size after folding, and the folding operation is cumbersome. Not only do they need to be unlocked, some also require both hands to operate, and some even require the cooperation of multiple people to complete the folding. This is very inconvenient for parents to travel, especially for the folding operation when riding in a car, bus or subway. In addition, the existing folding stroller structure is complex, the cost is high, the assembly is cumbersome, and the manufacturing time is long. [Summary of the invention]

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a child stroller which is easy to operate, convenient and quick to fold, can quickly fold the entire stroller under the action of gravity, has a simple structure, low cost, and can be assembled with one button, saving time and effort.

[0004] The object of the present invention is achieved in that:

[0005] The one-button folding stroller is characterized in that it includes a support rod assembly, the upper end of the support rod assembly is hinged with a handle rod assembly, a rotation locking assembly is provided between the support rod assembly and the handle rod assembly, and an operating member that can control the rotation locking assembly is provided on the handle rod assembly, the lower end of the support rod assembly is connected to the rear wheel assembly, the rear wheel assembly is hinged to a front wheel assembly, and a lower connecting rod assembly that supports both unfolding or contracting and folding is connected between the lower part of the rear wheel assembly and the lower part of the front wheel assembly, and an armrest assembly that can slide back and forth thereon is slidably connected to the support rod assembly, and a seat frame assembly is hinged on the front wheel assembly, and a bottom hinge of the handle rod assembly has a rotating rod that can be driven by it, the rear end of the armrest assembly is connected to the rotating rod, the upper end of the rear wheel assembly is connected to the rotating rod, and the lower end of the rotating rod is connected to the lower connecting rod assembly, the operating member is operated to unlock the rotation locking assembly, the handle rod assembly drives the rotating rod, and the rotating rod drives the support rod assembly, the handle rod assembly, the rear wheel assembly, the front wheel assembly and the armrest assembly to work synchronously, so as to realize one-button folding of the stroller.

[0006] The one-button folding stroller as described above is characterized in that a rotatable connecting sleeve is provided on the support rod assembly, and the armrest assembly is slidably connected to the connecting sleeve.

[0007] The one-button folding stroller as described above is characterized in that a handle extension rod is extended from the bottom of the handle rod assembly, and the rotating rod is connected to the handle extension rod.

[0008] The one-button folding stroller as described above is characterized in that the lower connecting rod assembly includes a first lower connecting rod hinged to the front wheel assembly, the first lower connecting rod is pivotally connected to the second lower connecting rod, the second lower connecting rod is hinged to the rear wheel assembly, the front end of the second lower connecting rod is connected to a short rod, and the other end of the short rod is hinged to the rotating rod.

[0009] The one-button folding stroller as described above is characterized in that the lower end of the support rod assembly is provided with a support rod lower pivot seat, the upper end of the rear wheel assembly is provided with a rear wheel pivot seat that cooperates with the support rod lower pivot seat, and the seat frame assembly is provided with a seat frame pivot seat that is pivotally connected to the support rod lower pivot seat and the rear wheel pivot seat.

[0010] The one-button folding stroller as described above is characterized in that an arc-shaped outer limit block is provided on the outer side of the pivot seat under the support rod, an arc-shaped limit groove matching with the arc-shaped outer limit block is provided on the inner side of the rear wheel pivot seat, an arc-shaped inner limit block is provided on the inner side of the pivot seat under the support rod, the rear wheel pivot seat is provided with a hollow shaft passing through the pivot seat under the support rod, a notch groove is provided on the inner side of the hollow shaft, the seat frame pivot seat is provided with a sleeve sleeved on the hollow shaft, a sleeve clamping block matching with the notch groove is provided on the inner wall of the sleeve, a sleeve outer limit block matching with the arc-shaped inner limit block is provided outside the sleeve, the front end of the rear wheel pivot seat is provided with a rear wheel pivot seat extension rod extending downward, and the upper part of the front wheel assembly is hinged to the rear wheel pivot seat extension rod.

[0011] The one-button folding stroller as described above is characterized in that the front end of the seat frame assembly is hinged to the upper part of the front wheel assembly through a seat frame connecting rod, and the two ends of the front end of the seat frame assembly are pivotally connected to U-shaped tubes through seat frame pivot seats; the inner sides of the seat frame pivot seats at both ends are connected to connecting rod connecting seats, a connecting rod is provided between the two connecting rod connecting seats, and seat plate fixing columns are provided on the two connecting rod connecting seats, and seat plate connecting holes are also provided on the seat frame assembly, the seat plate is fixed to the seat plate fixing columns and the seat plate connecting holes, and a backrest plate connecting clip is fixed to the backrest plate connecting clip.

[0012] The one-button folding stroller as described above is characterized in that the upper end of the support rod assembly is provided with a support rod upper pivot seat, the lower end of the handle rod assembly is provided with a handle pivot seat connected to the support rod upper pivot seat, the rotation locking assembly is arranged between the support rod upper pivot seat and the handle pivot seat, the rotation locking assembly includes a lower gear ring provided on the support rod upper pivot seat, the handle pivot seat is provided with an upper gear ring, a gear is provided between the lower gear ring and the upper gear ring, and a push-up inclined surface and a driving block that can be driven to rotate by the operating member and pushes the gear to move laterally under the action of the push-up inclined surface are also provided in the handle pivot seat.

[0013] The one-button folding stroller as described above is characterized in that the operating part includes a button seat arranged on the handle rod assembly, the button seat is provided with a transverse groove, the transverse groove is provided with a sliding rod that can slide transversely in the transverse groove, the sliding rod is connected with a rope, the rope is connected to the driving block of the rotation locking assembly, the button seat is also provided with a button that can slide up and down and a button spring that drives the button to reset, and the button is provided with an inclined groove that can drive the sliding rod to slide transversely.

[0014] The one-button folding stroller as described above is characterized in that the button seat is also provided with a second lock button and a second lock spring, a card slot is also provided in the button seat, the button is provided with a limit slot, and the second lock button is provided with a limit block which can slide forward and backward and be inserted into the card slot or the limit slot.

[0015] The beneficial effects of the present invention are:

[0016] The present invention unlocks the rotating locking assembly when operating the operating member, the handlebar assembly drives the rotating rod, the rotating rod drives the support rod assembly, the handlebar assembly, the rear wheel assembly, the front wheel assembly and the armrest assembly to be folded synchronously to realize one-button folding of the vehicle.

[0017] During the folding process of the present invention, only the rotating locking assembly needs to be unlocked, and the entire stroller can be quickly folded under the action of gravity without any other operation. The operation is simple, the folding is convenient and fast, the structure is simple, the cost is low, and the assembly is time-saving and labor-saving.

[0018] The size of the child stroller after being folded is smaller than the size for boarding, so the child stroller can be directly carried on board without checking in, which is more convenient.

[0019] The child stroller can stand up after being folded; after being folded, the rear wheels, the front wheels and the lower part of the handle extension rod are in the same horizontal plane, so that the child stroller can stand stably without tilting or falling down.

[0020] When the present invention is folded, the armrest assembly can slide backward when the rotating rod drives the armrest assembly. Since the connecting sleeve is rotatable, the armrest assembly can be rotated while sliding, so that the armrest assembly can be contracted to the entire folded size. Unlike existing child strollers, there is no need to disassemble the armrest assembly, which is more convenient.

Brief Description of the Drawings

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a structural diagram of the present invention;

[0023] Figure 3 is a side view of the present invention;

[0024] Figure 4 It is a structural diagram of the present invention;

[0025] Figure 5 is a structural diagram of a support rod assembly and a handle rod assembly;

[0026] Figure 6 It is a structural diagram of the rear wheel assembly, the front wheel assembly and the seat frame assembly;

[0027] Figure 7 It is the structural diagram of the operating parts and the structural diagram of the driving block;

[0028] Figure 8 is a three-dimensional diagram of the operating member;

[0029] Fig. 9 It is a structural diagram of the operating parts;

[0030] Fig.10 This is the structural exploded diagram of the operating parts

[0031] Fig.11 It is a structural diagram of the present invention during the folding process;

[0032] Fig.12 yes Fig.11 Side view of

[0033] Fig.13 It is a structural diagram of the present invention after folding;

[0034] Fig.14 It is a structural diagram of the present invention after being folded and the backrest plate is disassembled.

[0035] 1 , a plurality of rear wheels are provided with a plurality of rear wheels, each of which has a plurality of rear wheels, and each of which has a plurality of rear wheels, ... 3, brake 54, front wheel assembly 6, front wheel support rod 61, front wheel 62, pedal or pedal tube 63, lower connecting rod assembly 7, first lower connecting rod 71, second lower connecting rod 72, short rod 73, armrest assembly 8, seat frame assembly 9, seat frame pivot seat 900, shaft sleeve 90, shaft sleeve clamping block 901, shaft sleeve outer limit block 902, seat frame connecting rod 91, seat frame pivot seat 92, U-shaped tube 93, connecting rod connecting seat 94, connecting rod 941, seat plate fixing column 942, seat plate connecting hole 95, seat plate 96, back plate connecting clip 97, back plate 98, rotating rod 10, rotating rod connecting rod 101, connecting sleeve 11, support rod lower pivot seat 12, arc outer limit block 121, arc inner limit block 122, hollow shaft 123, notch groove 124, support rod upper pivot seat 13, lower gear ring 131. [Specific implementation method]

[0036] The present invention will be further described below in conjunction with the accompanying drawings:

[0037] A child stroller with one-touch folding comprises a support rod assembly 1, a handle rod assembly 2 is hingedly connected to the upper end of the support rod assembly 1, a rotation locking assembly 3 is provided between the support rod assembly 1 and the handle rod assembly 2, an operating member 4 for controlling the rotation locking assembly 3 is provided on the handle rod assembly 2, a rear wheel assembly 5 is connected to the lower end of the support rod assembly 1, the rear wheel assembly 5 is hinged to a front wheel assembly 6, a lower connecting rod assembly 7 is connected between the lower part of the rear wheel assembly 5 and the lower part of the front wheel assembly 6, which can keep the two in a supported and unfolded state or a retracted and folded state and can also make the two folded, an armrest assembly 8 which can slide back and forth thereon is slidably connected to the support rod assembly 1, a seat frame assembly 9 is hinged to the front wheel assembly 6, a rotating rod 10 which can be driven by the handle rod assembly 2 is hinged at the bottom hinge of the handle rod assembly 2, the rear end of the armrest assembly 8 is connected to the rotating rod 10, the upper end of the rear wheel assembly 5 is connected to the rotating rod 10, and the lower end of the rotating rod 10 is connected to the lower connecting rod assembly 7. The operating member 4 is operated to unlock the rotating lock assembly 3, the handlebar assembly drives the rotating rod, and the rotating rod 10 drives the support rod assembly 1, the handlebar assembly 2, the rear wheel assembly 5, the front wheel assembly 6 and the armrest assembly 8 to fold synchronously and realize one-key folding of the vehicle. During the folding process, only the rotating lock assembly 3 needs to be unlocked, so that the whole vehicle can be quickly folded under the action of gravity, without any other operation, and the operation is simple, and the folding of the vehicle is convenient and fast.

[0038] The support rod assembly 1, the handle rod assembly 2, the rotation locking assembly 3 and the rotating rod 10 of the present invention are all a pair. The rear wheel assembly 5 includes a pair of rear wheel support rods 51, and the lower parts of the pair of rear wheel support rods 51 are each provided with rear wheels 52. A rear wheel connecting rod 53 is provided between the pair of rear wheels 52, and a brake 54 is provided on the rear wheel connecting rod; the front wheel assembly 6 includes a pair of front wheel support rods 61, and the lower parts of the pair of front wheel support rods 61 are each provided with front wheels 62. A pedal or a pedal tube 63 is provided between the pair of front wheels.

[0039] The rear wheel assembly 5 and the rotating rod 10 of the present invention may be hinged with a connecting rod or a rotating shaft.

[0040] The present invention provides a rotatable connecting sleeve 11 on the support rod assembly 1, and the armrest assembly 8 is slidably connected to the connecting sleeve 11. When the rotating rod 10 drives the armrest assembly 8, the armrest assembly 8 can slide backward. Since the connecting sleeve 11 is rotatable, the armrest assembly 8 can rotate while sliding to facilitate folding.

[0041] The lower part between the pair of rotating rods 10 of the present invention is also connected with a rotating rod connecting rod 101 .

[0042] In the present invention, a handle extension rod 21 is extended from the lower part of the handle rod assembly 2, and the rotating rod 10 is connected to the handle extension rod 21. After the handle rod assembly 2 is flipped backward, the rotating rod 10 can be driven.

[0043] The lower connecting rod assembly 7 of the present invention includes a first lower connecting rod 71 hinged to the front wheel assembly 6, the first lower connecting rod 71 is pivotally connected to the second lower connecting rod 72, the second lower connecting rod 72 is hinged to the rear wheel assembly 5, the front end of the second lower connecting rod 72 is connected to a short rod 73, and the other end of the short rod 73 is hinged to the rotating rod 10.

[0044] The handrail assembly 8 of the present invention is a U-shaped rod or a U-shaped tube.

[0045] The lower end of the support rod assembly 1 of the present invention is provided with a support rod lower pivot seat 12, the upper end of the rear wheel assembly 5 is provided with a rear wheel pivot seat 50 that cooperates with the support rod lower pivot seat 12, and the seat frame assembly 9 is provided with a seat frame pivot seat 900 that is pivotally connected to the support rod lower pivot seat 12 and the rear wheel pivot seat 50.

[0046] The outer side of the support rod lower pivot seat 12 of the present invention is provided with an arc-shaped outer limit block 121, the inner side of the rear wheel pivot seat 50 is provided with an arc-shaped limit groove 511 that cooperates with the arc-shaped outer limit block 121, the inner side of the support rod lower pivot seat 12 is provided with an arc-shaped inner limit block 122, the rear wheel pivot seat 50 is provided with a hollow shaft 123 passing through the support rod lower pivot seat 12, the hollow shaft 123 is provided with a notch groove 124, the seat frame pivot seat 900 is provided with a sleeve 90 sleeved on the hollow shaft 123, the inner wall of the sleeve 90 is provided with a sleeve clamping block 901 that cooperates with the notch groove 124, the outer side of the sleeve 90 is provided with a sleeve outer limit block 902 that cooperates with the arc-shaped inner limit block 122, the front end of the rear wheel pivot seat 50 is provided with a rear wheel pivot seat extension rod 512 extending downward, and the upper part of the front wheel assembly 6 is hinged to the rear wheel pivot seat extension rod 512.

[0047] The seat frame pivot seat 900, the shaft sleeve 90, the shaft sleeve clamping block 901 and the shaft sleeve outer limiting block 902 of the present invention are an integrated structure.

[0048] The front end of the seat frame assembly 9 of the present invention is hinged to the upper part of the front wheel assembly 6 through a seat frame connecting rod 91, and the two ends of the front end of the seat frame assembly 9 are pivotally connected to a U-shaped tube 93 through a seat frame pivot seat 92; the inner sides of the seat frame pivot seats 92 at both ends are connected to connecting rod connecting seats 94, a connecting rod 941 is provided between the two connecting rod connecting seats 94, and seat plate fixing columns 942 are provided on the two connecting rod connecting seats 94. The seat frame assembly 9 is also provided with a seat plate connecting hole 95, a seat plate 96 is fixed to the seat plate fixing column 942 and the seat plate connecting hole 95, and a backrest plate connecting clamp 97 is fixed to the rear end of the seat frame assembly 9, and a backrest plate 98 is fixed to the backrest plate connecting clamp 97.

[0049] The upper end of the support rod assembly 1 of the present invention is provided with a support rod upper pivot seat 13, the lower end of the handle rod assembly 2 is provided with a handle pivot seat 22 connected to the support rod upper pivot seat 13, the rotation locking assembly 3 is arranged between the support rod upper pivot seat 13 and the handle pivot seat 22, the rotation locking assembly 3 includes a lower gear ring 131 provided on the support rod upper pivot seat 13, the handle pivot seat 22 is provided with an upper gear ring 221, a gear 31 is provided between the lower gear ring 131 and the upper gear ring 221, and a push-up inclined surface 222 and a driving block 32 that can be driven to rotate by the operating member and push the gear 31 to move horizontally under the action of the push-up inclined surface are also provided in the handle pivot seat 22. The driving block 32 is in the shape of a round pancake, and the driving block 32 is provided with a force-bearing inclined surface 321 that cooperates with the push-up inclined surface 222, and a connecting card hole 322 for fixing a connector, and the connector is connected to the rope 43 of the operating member 4.

[0050] The operating member 4 of the present invention includes a button seat 41 arranged on the handle rod assembly 2, and a transverse groove 411 is provided on the button seat 41. A sliding rod 42 that can slide horizontally in the transverse groove is provided in the transverse groove 411. The sliding rod 42 is connected to a rope 43, and the rope 43 is connected to the driving block 32 of the rotation locking assembly 3. The button seat 41 is also provided with a button 44 that can slide up and down and a button spring 45 that drives the button 44 to reset. The button 44 is provided with an inclined groove 46 for driving the sliding rod 42 to slide horizontally.

[0051] The present invention also provides a fixed limit seat 412 in the button seat 41, a transverse groove 411 is set in the middle of the fixed limit seat 412, a button push top is on the upper part of the button 44, and the button push top is divided into a front push top plate 441 and a rear push top plate 442. An intermediate groove 443 inserted into the middle of the fixed limit seat 412 is provided between the front push top plate 441 and the rear push top plate 442, and an inclined groove 46 that can push the sliding rod 42 to slide in the transverse groove 411 is provided in the middle of the front push top plate 441 and the rear push top plate 442.

[0052] The button seat 41 of the present invention is also provided with a second lock button 47 and a second lock spring (not shown in the figure), a card slot 413 is also provided in the button seat 41, and a limit slot 444 is provided in the button 44. The second lock button 47 is provided with a limit block 471 that can slide forward and backward and be inserted into the card slot 413 or the limit slot 444. The push-back top plate 442 of the button 44 is also provided with a clearance slot 445, and a second lock connecting rod 472 that cooperates with the clearance slot 445 is provided between the second lock button 47 and the limit block 471, so that when the button 44 slides up and down, the second lock button 47 will not restrict the button 44.

Claims

1. A child stroller that can be folded with one button, characterized by The invention comprises a support rod assembly (1), the upper end of the support rod assembly (1) is hingedly connected to a handle rod assembly (2), a rotation locking assembly (3) is arranged between the support rod assembly (1) and the handle rod assembly (2), an operating member (4) which can control the rotation locking assembly (3) is arranged on the handle rod assembly (2), the lower end of the support rod assembly (1) is connected to a rear wheel assembly (5), the rear wheel assembly (5) is hingedly connected to a front wheel assembly (6), a lower connecting rod assembly (7) which supports both unfolding or contracting and folding is connected between the lower part of the rear wheel assembly (5) and the lower part of the front wheel assembly (6), and a handrail assembly (8) which can slide forward and backward on the support rod assembly (1) is slidably connected to the support rod assembly (1). The front wheel assembly (6) is hinged with a seat frame assembly (9), the bottom hinge of the handlebar assembly (2) is provided with a rotating rod (10) which can be driven by the handlebar assembly (2), the rear end of the armrest assembly (8) is connected to the rotating rod (10), the upper end of the rear wheel assembly (5) is connected to the rotating rod (10), the lower end of the rotating rod (10) is connected to the lower connecting rod assembly (7), the operating member (4) is operated to unlock the rotation locking assembly (3), the handlebar assembly (2) drives the rotating rod (10), the rotating rod (10) drives the support rod assembly (1), the handlebar assembly (2), the rear wheel assembly (5), the front wheel assembly (6) and the armrest assembly (8) are synchronously linked to achieve one-key folding of the vehicle.

2. The one-button folding stroller according to claim 1, characterized in that The support rod assembly (1) is provided with a rotatable connecting sleeve (11), and the armrest assembly (8) is slidably connected to the connecting sleeve (11).

3. The one-button folding stroller according to claim 1, characterized in that A handle extension rod (21) extends from the bottom of the handle rod assembly (2), and the rotating rod (10) is connected to the handle extension rod (21).

4. The one-button folding stroller according to claim 1, characterized in that The lower connecting rod assembly (7) comprises a first lower connecting rod (71) hinged to the front wheel assembly (6); the first lower connecting rod (71) is pivotally connected to a second lower connecting rod (72); the second lower connecting rod (72) is hinged to the rear wheel assembly (5); the front end of the second lower connecting rod (72) is connected to a short rod (73); the other end of the short rod (73) is hinged to the rotating rod (10).

5. The one-button folding stroller according to claim 1, characterized in that The lower end of the support rod assembly (1) is provided with a support rod lower pivot seat (12), the upper end of the rear wheel assembly (5) is provided with a rear wheel pivot seat (50) matched with the support rod lower pivot seat (12), and the seat frame assembly (9) is provided with a seat frame pivot seat (900) pivotally connected with the support rod lower pivot seat (12) and the rear wheel pivot seat (50).

6. The one-button folding stroller according to claim 5, characterized in that The outer side of the support rod lower pivot seat (12) is provided with an arc-shaped outer limit block (121), the inner side of the rear wheel pivot seat (50) is provided with an arc-shaped limit groove (511) matched with the arc-shaped outer limit block, the inner side of the support rod lower pivot seat (12) is provided with an arc-shaped inner limit block (122), the rear wheel pivot seat (50) is provided with a hollow shaft (123) passing through the support rod lower pivot seat (12), the inner side of the hollow shaft (123) is provided with a notch groove (124), the seat frame pivot seat ( The front wheel assembly (6) is provided with a shaft sleeve (90) sleeved on a hollow shaft (123), the inner wall of the shaft sleeve (90) is provided with a shaft sleeve clamping block (901) matched with a notch groove (124), the outer side of the shaft sleeve (90) is provided with a shaft sleeve outer limit block (902) matched with an arc-shaped inner limit block (122), the front end of the rear wheel pivot seat (50) is provided with a rear wheel pivot seat extension rod (512) extending downward, and the upper part of the front wheel assembly (6) is hinged to the rear wheel pivot seat extension rod (512).

7. The one-button folding stroller according to claim 1, characterized in that The front end of the seat frame assembly (9) is hinged to the upper part of the front wheel assembly (6) through a seat frame connecting rod (91), and the two ends of the front end of the seat frame assembly (9) are connected to a U-shaped tube (93) through a seat frame pivot seat (92); the inner sides of the seat frame pivot seats (92) at both ends are connected to a connecting rod connecting seat (94), a connecting rod (941) is provided between the two connecting rod connecting seats (94), and a seat plate fixing column (942) is provided on the two connecting rod connecting seats (94); the seat frame assembly (9) is also provided with a seat plate connecting hole (95), and the seat plate (96) is fixed to the seat plate fixing column (942) and the seat plate connecting hole (95); the rear end of the seat frame assembly (9) is fixed with a backrest plate connecting clamp (97), and a backrest plate (98) is fixed on the backrest plate connecting clamp (97).

8. The one-button folding stroller according to claim 1, characterized in that The upper end of the support rod assembly (1) is provided with a support rod upper pivot seat (13), the lower end of the handle rod assembly (2) is provided with a handle pivot seat (22) connected to the support rod upper pivot seat (13), the rotation locking assembly (3) is arranged between the support rod upper pivot seat (13) and the handle pivot seat (22), the rotation locking assembly (3) comprises a lower gear ring (131) provided on the support rod upper pivot seat (13), the handle pivot seat (22) is provided with an upper gear ring (221), a gear (31) is provided between the lower gear ring (131) and the upper gear ring (221), and a push-up inclined surface (222) and a driving block (32) which can be driven to rotate by an operating member and pushes the gear (31) to move horizontally under the action of the push-up inclined surface are also provided in the handle pivot seat (22).

9. The one-button folding stroller according to claim 1, characterized in that The operating member (4) comprises a button seat (41) arranged on the handle bar assembly (2), the button seat (41) being provided with a transverse groove (411), a sliding rod (42) being provided in the transverse groove and being capable of sliding transversely in the transverse groove, the sliding rod (42) being connected with a rope (43), the rope (43) being connected with a driving block (32) of the rotation locking assembly (3), the button seat (41) being further provided with a button (44) being capable of sliding up and down and a button spring (45) for driving the button (44) to reset, the button (44) being provided with an oblique groove (46) for driving the sliding rod (42) to slide transversely.

10. The one-button folding stroller according to claim 8, characterized in that The button seat (41) is also provided with a second lock button (47) and a second lock spring. A clamping slot (413) is also provided in the button seat (41). The button (44) is provided with a limiting slot (444). The second lock button (47) is provided with a limiting block (471) which can slide forward and backward and be clamped into the clamping slot (413) or the limiting slot (441).

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