Baby stroller

Abstract

The utility model discloses a child stroller which comprises a stroller frame, a seat mechanism and a supporting assembly connected with the stroller frame and the seat mechanism respectively so that the seat mechanism can rotate around a first rotating shaft extending in the vertical direction relative to the stroller frame to change the position, and the seat mechanism comprises a seat and a backrest. Two of the seat, the backrest and the supporting assembly are rotationally connected, the third one is rotationally connected with any one of the seat and the backrest, or the seat, the backrest and the supporting assembly are coaxially and rotationally connected around a second rotating shaft, so that when the stroller is folded, the seat can rotate relative to the supporting assembly to be close to the backrest; the whole seat mechanism can rotate relative to the supporting assembly to be close to the stroller frame. The seat mechanism can be closely close to the stroller frame after the stroller is folded, so that the stroller is compact in structure, small in size and convenient to carry and store after being folded.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field, concretely relates to a children's pushchair. BACKGROUND

[0002] The children's pushchair comprises a pushchair frame and a seat mechanism arranged on the pushchair frame. When the children's pushchair is used, the seat mechanism of some children's pushchairs can be arranged in a forward direction or in a reverse direction to facilitate the care of children by adults. In the prior art, a mounting seat is arranged on the pushchair frame of some children's pushchairs, and the seat mechanism is rotatably arranged on the mounting seat about a rotating shaft extending in an up-down direction. In this way, the orientation of the seat mechanism can be changed by rotating the seat mechanism relative to the mounting seat. However, the children's pushchair with the above structure has the problem that the structure is large in size after being folded, which is inconvenient for carrying and storing. SUMMARY

[0003] The utility model aims at the deficiency in the prior art and provides a children's pushchair with a small structure size after being folded.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0005] A children's pushchair has an unfolded state and a folded state, and comprises a pushchair frame and a seat mechanism. The children's pushchair further comprises a support assembly connected to the pushchair frame and the seat mechanism, respectively, so that the seat mechanism can be rotated relative to the pushchair frame about a first rotating shaft extending in an up-down direction to change position. The seat mechanism comprises a seat and a backrest. Two of the seat, the backrest and the support assembly are rotationally connected, and the third one is rotationally connected to any one of the two. Alternatively, the three are coaxially rotationally connected about a second rotating shaft. When the children's pushchair is folded, the seat can be rotated relative to the support assembly to be close to the backrest, and the seat mechanism as a whole can be rotated relative to the support assembly to be close to the pushchair frame.

[0006] In some embodiments, the children's pushchair further comprises a first locking mechanism arranged between one of the seat and the backrest and the support assembly to lock the relative position of the two. The first locking mechanism comprises a locking piece movably arranged on one of the seat or the backrest and the support assembly, and a matching part arranged on the other one to disengageably cooperate with the locking piece. The children's pushchair further comprises an unlocking mechanism connected to or cooperating with the first locking mechanism, so that when the unlocking mechanism is operated, the locking piece and the matching part are disengaged.

[0007] In some embodiments, the seat mechanism further comprises a pedal, one end of the pedal is rotatably connected with the seat, the pedal has a first position and a second position relative to the seat, when the stroller is in the unfolded state, the pedal is in the first position, when the stroller is folded, the pedal is rotated to the second position relative to the seat.

[0008] In some embodiments, the unlocking mechanism comprises a pedal, the unlocking mechanism further comprises a first linkage mechanism, the first linkage mechanism is connected or cooperated with the pedal and the locking member respectively, so that when the pedal is switched from the first position to the second position, the first locking mechanism is driven to be unlocked.

[0009] In some embodiments, the first linkage mechanism comprises a driving member movably arranged on the seat or the support assembly, the driving member is cooperated or connected with the pedal and the locking member respectively.

[0010] In some embodiments, a protrusion is arranged on the driving member, a resisting portion is arranged on the pedal, the protrusion is resistingly cooperated with the resisting portion, or the protrusion is releasably cooperated with the resisting portion.

[0011] And / or, a first inclined surface is further arranged on the driving member, a second inclined surface is arranged on the locking member, the first inclined surface is resistingly cooperated with the second inclined surface.

[0012] In some embodiments, the stroller further comprises a second locking mechanism, the second locking mechanism is arranged on the seat mechanism or between the seat mechanism and the support assembly to lock the position of the other one of the seat and the backrest, the stroller further comprises a second linkage mechanism, one end of the second linkage mechanism is connected or cooperated with the second locking mechanism, the other end of the second linkage mechanism is connected or cooperated with the unlocking mechanism or the locking member, so that when the unlocking mechanism or the locking member is actuated to unlock the first locking mechanism, the second locking mechanism is unlocked.

[0013] In some embodiments, the second linkage mechanism comprises a traction cable, one end of the traction cable is arranged on the second locking mechanism, the other end of the traction cable is arranged on the locking member.

[0014] In some embodiments, the seat mechanism further comprises an armrest and a connecting rod, one end of the armrest is rotatably connected with the backrest, one end of the connecting rod is rotatably connected with the armrest, the other end of the connecting rod is rotatably connected with the seat.

[0015] In some embodiments, the support assembly includes a base disposed on the trolley frame and a rotating seat rotatably disposed on the base about the first pivot axis, wherein two of the seat, the backrest, and the rotating seat are rotatably connected, the third is rotatably connected to either of the aforementioned two, or the three are coaxially rotatably connected about the second pivot axis.

[0016] In some embodiments, the base is rotatably mounted on the stroller frame such that when the stroller is folded, the support assembly can cause the seat mechanism to rotate relative to the stroller frame and move closer to the stroller frame.

[0017] In some embodiments, the trolley frame includes a front support, a rear support, and a push rod, wherein two of the front support, the rear support, and the push rod are rotatably connected, the third is rotatably connected to either of the aforementioned two, or the aforementioned three are coaxially rotatably connected, and the base is rotatably connected to the front support or the rear support.

[0018] And / or, the front bracket, the rear bracket, the push rod, and the base are coaxially rotatably connected.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The seat mechanism of the stroller of this utility model can rotate around a first pivot extending in the vertical direction, so that the stroller can be reversed without taking the child out of the seat mechanism, which facilitates the reversing operation of the stroller. Moreover, when the stroller is folded, the seat can rotate relative to the support component and move closer to the backrest, and the seat mechanism as a whole can also rotate relative to the support component and move closer to the stroller frame, so that the seat mechanism can be closely close to the stroller frame after the stroller is folded, making the stroller compact in structure, small in size, and easy to carry and store. Attached Figure Description

[0020] Appendix Figure 1 This is a three-dimensional schematic diagram of the stroller in the unfolded state (viewed from front to back) according to this embodiment;

[0021] Appendix Figure 2 This is a three-dimensional schematic diagram (viewed from back to front) of the stroller in the unfolded state according to this embodiment;

[0022] Appendix Figure 3 This is a side view of the stroller in the unfolded state according to this embodiment;

[0023] Appendix Figure 4 This is a cross-sectional view of the stroller in the unfolded state according to this embodiment.

[0024] Appendix Figure 5 For the appendix Figure 4 Enlarged view of a portion of point A in the middle;

[0025] Appendix Figure 6 This is a schematic diagram of the seat mechanism of the stroller in this embodiment after removing part of the structure;

[0026] Appendix Figure 7 This is a side view of the stroller in this embodiment during the folding process (pedestal rotated to the second position);

[0027] Appendix Figure 8 This is a side view of the stroller in this embodiment during the folding process (the seat rotates to be close to the backrest);

[0028] Appendix Figure 9 This is a side view of the stroller in this embodiment during the folding process (after the seat mechanism has rotated a certain angle relative to the support assembly);

[0029] Appendix Figure 10 This is a three-dimensional schematic diagram of the stroller in the folded state according to this embodiment;

[0030] Appendix Figure 11 This is a side view of the stroller in the folded state according to this embodiment.

[0031] The components are as follows: 11. Front support; 12. Rear support; 13. Push rod; 2. Seat mechanism; 21. Seat; 22. Backrest; 221. Backrest main body; 222. Backrest side wing; 23. Pedal; 231. Abutment part; 232. Recess; 24. Armrest; 25. Linkage rod; 3. Support assembly; 31. Base; 32. Rotating seat; 321. Fitting part; 41. First rotating shaft; 42. Second rotating shaft; 43. Third rotating shaft; 5. Locking element; 51. Locking part; 52. Second inclined surface; 6. Driving element; 61. Protrusion; 62. First inclined surface; 7. Second locking mechanism; 8. Traction cable; 91. Front wheel assembly; 92. Rear wheel assembly. Detailed Implementation

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] In the following description, the directions "front," "back," "left," "right," "up," and "down" all refer to... Figure 3 In the figure, the left direction is "front", the right direction is "back", the top direction is "up", and the bottom direction is "down". The directions perpendicular to the paper are "left" and "right". The above definitions of directions are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] likeFigures 1-4 As shown in the drawings, the utility model discloses a child stroller including a stroller frame with an unfolded state and a folded state, a seat mechanism 2, a support assembly 3, a front wheel assembly 91 arranged at the bottom front part of the stroller frame and a rear wheel assembly 92 arranged at the bottom rear part of the stroller frame.

[0035] The support assembly 3 is connected with the stroller frame and the seat mechanism respectively, so that the seat mechanism 2 can rotate relative to the stroller frame around the first rotation shaft 41, and the first rotation shaft 41 extends in the up-down direction. In this way, the seat mechanism 2 can rotate around the first rotation shaft 41, so that the seat mechanism 2 is rotated to different positions, so that the child stroller can have a forward use state and a reverse use state. When the child stroller is in the forward use state, the face of the child is forward when the child is seated in the seat mechanism 2. When the child stroller is in the reverse use state, the face of the child is backward when the child is seated in the seat mechanism 2. The seat mechanism 2 rotates relative to the support assembly 3 around the first rotation shaft 41, so that the child stroller can be switched between the forward use state and the reverse use state without taking the child out of the seat mechanism 2, so that the reversing operation of the child stroller is convenient.

[0036] As shown in the drawings, Figure 8 and Figure 9 The support assembly 3 includes a base 31 and a rotating seat 32. The base 31 is arranged on the stroller frame, the rotating seat 32 is arranged on the base 31 and can rotate around the first rotation shaft 41, and the seat mechanism 2 is arranged on the rotating seat 32. In this way, when the rotating seat 32 rotates relative to the base 31 around the first rotation shaft 41, the seat mechanism 2 is driven to rotate synchronously around the first rotation shaft 41 to change the position.

[0037] The seat mechanism 2 includes a seat 21 and a backrest 22. Two of the seat 21, the backrest 22 and the rotating seat 32 are rotationally connected, and the third one is rotationally connected with any one of the two; or the three are coaxially rotationally connected around the second rotation shaft 42, and the second rotation shaft 42 extends in the left-right direction. When the child stroller is folded, the seat 21 can rotate relative to the support assembly 3 and approach the backrest 22. After the seat 21 approaches the backrest 22, the seat mechanism 2 as a whole can also rotate relative to the support assembly 3 and approach the stroller frame. In this way, after the child stroller is folded, the seat mechanism 2 can be closely approached together with the stroller frame, so that the structural volume of the child stroller after being folded can be reduced.

[0038] In this embodiment, the seat 21 and the backrest 22 are rotationally connected, and the seat 21, the backrest 22 and the rotating seat 32 are coaxially rotationally connected around the second rotation shaft 42.

[0039] The backrest 22 comprises a backrest body 221 and backrest side wings 222 respectively arranged at left and right sides of the backrest body 221, and the backrest side wings 222 respectively extend forward from the connection positions with the backrest body 221. The backrest side wings 222 can protect the child seated in the seat mechanism 2. When the stroller is folded, the seat 21 is located between the backrest side wings 222, and the backrest side wings 222 can shield the seat 21, so that the appearance of the folded stroller is neat and beautiful.

[0040] The seat mechanism 2 further comprises a footboard 23, one end of the footboard 23 being rotationally connected with the seat 21. The footboard 23 has a first position and a second position relative to the seat 21.

[0041] When the stroller is in the unfolded state, the footboard 23 is in the first position. At this time, the footboard 23 extends obliquely downward from the connection position with the seat 21, specifically, when the stroller is in the forward use state, the footboard 23 extends obliquely downward and forward from the connection position with the seat 21; when the stroller is in the reverse use state, the footboard 23 extends obliquely downward and backward from the connection position with the seat 21. The footboard 23 is used to support the legs and feet of the child, as shown in FIG. 2. Figures 1-4

[0042] When the stroller is folded, the footboard 23 is in the second position, at this time, the footboard 23 is approximately in the same plane as the seat 21.

[0043] The rotation of the footboard 23 relative to the seat 21 can convert the footboard 23 between the first position and the second position. When the stroller is in the folded state, the footboard 23 is kept in the second position, and is accommodated between the backrest side wings 222 and is close to the backrest body 221 together with the seat 21.

[0044] The seat mechanism 2 further comprises a handrail 24 and a connecting rod 25. One end of the handrail 24 is rotationally connected with the backrest 22. One end of the connecting rod 25 is rotationally connected with the handrail 24, and the other end of the connecting rod 25 is rotationally connected with the seat 21.

[0045] In this way, a four-bar linkage mechanism is formed between the seat 21, the backrest 22, the handrail 24 and the connecting rod 25. When the seat 21 rotates relative to the backrest 22 during folding and unfolding of the stroller, the handrail 24 can be driven to rotate relative to the backrest 22 by the connecting rod 25, so that the handrail 24 is synchronously folded or unfolded, and the folding operation of the stroller is convenient.

[0046] ​The stroller further comprises a first locking mechanism arranged between one of the seat 21 and the backrest 22 and the rotating seat 32 to lock the relative position of the two. When the stroller is in the unfolded state, the first locking mechanism is in the locked state, thereby locking the relative position between the seat 21 or the backrest 22 and the rotating seat 32, so that the seat 21 or the backrest 22 cannot rotate relative to the support assembly 3. When the first locking mechanism is unlocked, the seat 21 or the backrest 22 can rotate relative to the support assembly 3. In this embodiment, the first locking mechanism is arranged between the seat 21 and the rotating seat 32 to lock the relative position of the two.

[0047] The first locking mechanism comprises a locking piece 5 and a matching part 321 disengageably matched with the locking piece 5, the locking piece 5 is movably arranged on one of the seat 21 and the rotating seat 32, and the matching part 321 is arranged on the other one of the seat 21 and the rotating seat 32. When the first locking mechanism is in the locked state, the locking piece 5 is matched with the matching part 321, as shown in Figure 4 and Figure 5 When the first locking mechanism is in the unlocked state, the matching of the locking piece 5 and the matching part 321 is disengaged.

[0048] Specifically, the locking piece 5 is provided with a locking part 51, and the matching part 321 is a locking groove. When the first locking mechanism is in the locked state, the locking part 51 is inserted into the locking groove, as shown in Figure 4 and Figure 5 When the first locking mechanism is in the unlocked state, the locking part 51 is disengaged from the locking groove.

[0049] In this embodiment, the locking piece 5 is slidably arranged on the seat 21, and in other embodiments, the locking piece 5 can also be rotatably arranged on the seat 21. The matching part 321 is arranged on the rotating seat 32 of the support assembly 3.

[0050] The child stroller further comprises a second locking mechanism 7 arranged on the seat mechanism 2 or between the seat mechanism 2 and the rotating seat 32, and used for locking the position of the other one of the seat 21 and the backrest 22. In this embodiment, the second locking mechanism locks the position of the backrest 22, and can be arranged between any two rotatable connections of the four-bar linkage formed by the seat 21, the backrest 22, the armrest 24 and the connecting rod 25. When the second locking mechanism 7 is in the locked state, the second locking mechanism 7 locks the position of the seat mechanism, so that the four-bar linkage formed by the seat 21, the backrest 22, the armrest 24 and the connecting rod 25 cannot act. When the second locking mechanism 7 is in the unlocked state, each rod of the four-bar linkage formed by the seat 21, the backrest 22, the armrest 24 and the connecting rod 25 can rotate relative to each other. When the child stroller is in the unfolded state, the seat mechanism 2 is locked in the unfolded state by the second locking mechanism 7. The second locking mechanism 7 can adopt the structure in the prior art, which will not be described in detail here.

[0051] The child stroller further comprises an unlocking mechanism connected or matched with the first locking mechanism, so that when the unlocking mechanism is operated, the locking piece 5 can act relative to the seat 21 and disengage from the matching part 321, i.e. the first locking mechanism is unlocked.

[0052] In this embodiment, the unlocking mechanism comprises the pedal 23, and further comprises a first linkage mechanism connected or matched with the locking piece 5 and the pedal 23, so that when the pedal 23 is switched from the first position to the second position, the first locking mechanism can be driven to be unlocked. In this way, when the child stroller is folded and the pedal 23 is rotated relative to the seat 21 to be folded, the first locking mechanism can be unlocked, so that the unlocking operation of the first locking mechanism is convenient and the folding operation of the child stroller is facilitated.

[0053] The first linkage mechanism comprises a driving piece 6 movably arranged on the seat 21 or the rotating seat 32, and matched with the pedal 23 and the locking piece 5. When the pedal 23 is rotated from the first position to the second position relative to the seat 21, the pedal 23 can act on the driving piece 6, so that the driving piece 6 acts relative to the seat 21 or the rotating seat 32, and when the driving piece 6 acts, it acts on the locking piece 5, so that the locking piece 5 acts and disengages from the matching part 321, i.e. the first locking mechanism is unlocked.

[0054] In this embodiment, the driving piece 6 is slidably arranged on the seat 21.

[0055] As shown in FIGS. 1, 2 and 3, the driving piece 6 is arranged on the seat 21, and the pedal 23 is arranged on the seat 21. Figure 4 Figure 5 As shown in FIGS. 1, 2 and 3, the driving piece 6 is arranged on the seat 21, and the pedal 23 is arranged on the seat 21.

[0056] ​The convex part 61 can be in abutting engagement with the abutting part 231, and when the pedal 23 rotates relative to the seat 21, the convex part 61 is located in the rotating path of the abutting part 231. Thus, when the pedal 23 rotates from the first position, the convex part 61 is driven by the abutting part 231, thereby driving the driving member 6 to slide relative to the seat 21 and driving the locking member 5 to slide. When the pedal 23 rotates to the second position, the first locking mechanism is unlocked. That is, the movement stroke of the pedal 23 from the first position to the second position is consistent with the movement stroke of the driving member 6 and the locking member 5 when the first locking mechanism is unlocked.

[0057] The convex part 61 can also be in releasable engagement with the abutting part 231, that is, when the stroller is in the unfolded state, the convex part 61 and the abutting part 231 are in a state of disengagement, as shown in Figure 4 and Figure 5 When the pedal 23 rotates from the first position, the driving member 6 remains stationary, and the locking member 5 also remains stationary. When the pedal 23 rotates by a certain angle, the convex part 61 is in abutting engagement with the abutting part 231, thereby driving the driving member 6 to slide relative to the seat 21 and driving the locking member 5 to slide when the pedal 23 rotates. When the pedal 23 rotates to the second position, the first locking mechanism is unlocked. That is, the movement stroke of the pedal 23 from the first position to the second position is inconsistent with the movement stroke of the driving member 6 and the locking member 5 when the first locking mechanism is unlocked. The pedal 23 acts on the driving member 6 only after rotating by a certain angle, thereby shortening the movement stroke of the driving member 6 and the locking member 5, reducing the occupied space of the first locking mechanism and the unlocking mechanism, and helping to reduce the size of the stroller.

[0058] In this embodiment, the pedal 23 is provided with a recess 232 extending in the rotating direction thereof, and the abutting part 231 is a side wall of the recess 232, and the convex part 61 extends into the recess 232, as shown in Figure 4 and Figure 5 .

[0059] The driving member 6 and the locking member 5 are in engagement in the following manner: the driving member 6 is further provided with a first inclined surface 62, which is inclined relative to the sliding direction of the driving member 6. The locking member 5 is provided with a second inclined surface 52, which is inclined relative to the sliding direction of the locking member 5. The first inclined surface 62 and the second inclined surface 52 are in abutting engagement, as shown in Figure 4 and Figure 5 .

[0060] In other embodiments, an unlocking member can be additionally provided on the seat 21, or the rotating seat 32, or the pedal 23, which can be connected to the locking member 5 directly or through a linkage mechanism by using the mechanisms in the prior art, so as to drive the locking member 5 to disengage from the engaging part 321 when the unlocking member is operated.

[0061] The stroller further comprises a second linkage mechanism, one end of the second linkage mechanism is connected or cooperated with the second locking mechanism 7, and the other end of the second linkage mechanism is connected or cooperated with the unlocking mechanism or locking member 5, so that the unlocking mechanism or locking member 5 is actuated to unlock the first locking mechanism when the second locking mechanism 7 is unlocked. In this way, when the stroller is folded, the second locking mechanism 7 does not need to be separately operated to be unlocked, so that the folding operation of the stroller is convenient.

[0062] The second linkage mechanism comprises a traction cable 8, one end of the traction cable 8 is arranged on the second locking mechanism 7, and the other end of the traction cable 8 is arranged on the pedal 23, the driving member 6 or the locking member 5. In this embodiment, the other end of the traction cable 8 is arranged on the locking member 5, as shown in FIG. 5, so that the length of the traction cable 8 can be shortened, and the structure is simpler. Figure 6

[0063] During the conversion of the pedal 23 from the first position to the second position, the second locking mechanism 7 is pulled by the traction cable 8 to be actuated, so that the second locking mechanism 7 can be unlocked.

[0064] The base 31 can be fixedly arranged on the stroller frame. The base 31 can also be rotatably arranged on the stroller frame about a third rotation shaft 43 extending in the left-right direction. In this way, when the stroller is folded, the base 31 can drive the rotating seat 32 and the seat mechanism 2 to rotate relative to the stroller frame and approach the stroller frame, so that the seat mechanism 2 can be more closely approached to the stroller frame after the stroller is folded, and the structure of the folded stroller is smaller.

[0065] A specific structure of the stroller frame is given below, but the stroller frame is not limited to the structure given in this embodiment.

[0066] The stroller frame comprises a front support 11, a rear support 12 and a push rod 13. Two of the front support 11, the rear support 12 and the push rod 13 are rotatably connected, the third one is rotatably connected with any one of the two, or the three are coaxially rotatably connected. The front wheel assembly 91 is arranged at the lower part of the front support 11, and the rear wheel assembly 92 is arranged at the lower part of the rear support 12. The base 31 is rotatably connected with the front support 11 or the rear support 12.

[0067] Preferably, the front support 11, the rear support 12, the push rod 13 and the base 31 are coaxially rotatably connected about the third rotation shaft 43. In this way, the structure of the stroller is simple.

[0068] When the stroller is in the unfolded state, the stroller frame and the seat mechanism 2 are both in the unfolded state, the pedal 23 is in the first position relative to the seat 21, and the first locking mechanism and the second locking mechanism are both in the locked state, as shown in FIG. 1. Figures 1-4 ​​

[0069] When the stroller is folded from its unfolded state, the footrest 23 is rotated upward relative to the seat 21 until the footrest 23 is rotated to the second position, such as... Figure 7 As shown. During this process, when the pedal 23 rotates a certain angle, and continues to rotate in the current direction, the pedal 23 acts on the drive member 6, causing the drive member 6 to slide downward relative to the seat 21. The drive member 6 acts on the locking member 5, causing the locking member 5 to slide relative to the seat 21, thus disengaging the locking member 5 from the mating part 321, i.e., unlocking the first locking mechanism. During the sliding of the locking member 5 relative to the seat 21, the traction cable 8 acts on the second locking mechanism 7, causing the second locking mechanism 7 to unlock. This causes the seat 21 and pedal 23 to rotate backward relative to the support assembly 3 until both the seat 21 and pedal 23 are close to the backrest body 221, and the seat 21 is at least partially separated from the rotating seat 32, as shown. Figure 8 As shown. The seat mechanism 2 rotates rearward around the second pivot 42 relative to the support assembly 3, bringing it closer to the push rod 13, as shown. Figure 9 As shown. The push rod 13 rotates downwards around the third pivot 43 to approach the rear support 12, causing the base 31 to drive the rotating seat 32 and the seat mechanism 2 to rotate backwards around the third pivot 43, causing the front support 11 to rotate backwards around the third pivot 43 to approach the rear support 12, until the front support 11, rear support 12, push rod 13, and seat mechanism 2 are all tightly close together, finally folding as shown. Figure 10 and Figure 11 As shown.

[0070] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A children's stroller, characterized in that: The stroller has an unfolded state and a folded state, including a stroller frame and a seat mechanism, and a support assembly connected to the stroller frame and the seat mechanism respectively, so that the seat mechanism can rotate relative to the stroller frame about a first pivot extending in the vertical direction to change its position. The seat mechanism includes a seat and a backrest. Two of the seat, the backrest and the support assembly are rotatably connected, and the third is rotatably connected to either of the aforementioned two, or the three are coaxially rotatably connected about a second pivot, so that when the stroller is folded, the seat can rotate relative to the support assembly and move closer to the backrest, and the seat mechanism as a whole can rotate relative to the support assembly and move closer to the stroller frame.

2. The stroller according to claim 1, characterized in that: The stroller further includes a first locking mechanism disposed between one of the seat and the backrest and the support assembly to lock their relative positions. The first locking mechanism includes a locking member movably disposed on one of the seat or the backrest and the support assembly and a mating part disposed on the other and detachably engaged with the locking member. The stroller further includes an unlocking mechanism connected to or engaged with the first locking mechanism such that operating the unlocking mechanism disengages the locking member from the mating part.

3. The stroller according to claim 2, characterized in that: The seating mechanism also includes a pedal, one end of which is rotatably connected to the seat. The pedal has a first position and a second position relative to the seat. When the stroller is in the unfolded state, the pedal is in the first position. When the stroller is folded, the pedal rotates to the second position relative to the seat.

4. The stroller according to claim 3, characterized in that: The unlocking mechanism includes a pedal and a first linkage mechanism. The first linkage mechanism is connected to or cooperates with the locking member and the pedal, so that the first locking mechanism is unlocked when the pedal changes from the first position to the second position.

5. The stroller according to claim 4, characterized in that: The first linkage mechanism includes a drive component movably mounted on the seat or the support assembly, the drive component cooperating with or connected to the pedal and the locking component respectively.

6. The stroller according to claim 5, characterized in that: The driving component is provided with a protrusion, and the pedal is provided with an abutment portion. The protrusion and the abutment portion abut against each other, or the protrusion and the abutment portion can be detachably engaged. And / or, the driving member is further provided with a first inclined surface, and the locking member is provided with a second inclined surface, the first inclined surface and the second inclined surface abutting and cooperating.

7. The stroller according to claim 2, characterized in that: The stroller also includes a second locking mechanism, which is disposed on the seat mechanism or between the seat mechanism and the support assembly to lock the position of the other of the seat and the backrest. The stroller also includes a second linkage mechanism, one end of which is connected to or cooperates with the second locking mechanism, and the other end of which is connected to or cooperates with the unlocking mechanism or the locking member, such that when the unlocking mechanism or the locking member is activated to unlock the first locking mechanism, the second locking mechanism is also unlocked.

8. The stroller according to claim 7, characterized in that: The second linkage mechanism includes a traction cable, one end of which is disposed on the second locking mechanism, and the other end of which is disposed on the locking member.

9. The stroller according to claim 1, characterized in that: The seating mechanism also includes an armrest and a connecting rod. One end of the armrest is rotatably connected to the backrest, one end of the connecting rod is rotatably connected to the armrest, and the other end of the connecting rod is rotatably connected to the seat.

10. The stroller according to any one of claims 1 to 9, characterized in that: The support assembly includes a base disposed on the stroller frame and a rotating seat disposed on the base that can rotate around the first pivot axis. Two of the seat, the backrest, and the rotating seat are rotatably connected, and the third is rotatably connected to either of the aforementioned two, or the three are coaxially rotatably connected around the second pivot axis. When the stroller is folded, the seat rotates and moves closer to the backrest, causing the seat to separate at least partially from the support assembly.

11. The stroller according to claim 10, characterized in that: The base is rotatably mounted on the stroller frame so that when the stroller is folded, the support assembly can drive the seat mechanism to rotate relative to the stroller frame and move closer to the stroller frame.

12. The stroller according to claim 11, characterized in that: The trolley frame includes a front support, a rear support, and a push rod. Two of the three components, namely the front support, the rear support, and the push rod, are rotatably connected. The third component is rotatably connected to either of the aforementioned two components, or the three components are rotatably connected coaxially. The base is rotatably connected to either the front support or the rear support. And / or, the front bracket, the rear bracket, the push rod, and the base are coaxially rotatably connected.

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