Foldable seat and baby stroller with the seat

Abstract

The present invention discloses a foldable seat pocket, wherein the seat pocket frame comprises a surrounding frame and a seat pocket connecting piece, the surrounding frame comprises an upper surrounding frame and a lower surrounding frame, the upper surrounding frame, the lower surrounding frame and the seat pocket connecting piece are rotatably pin-connected, the surrounding frame has a plurality of working positions and unlockable positions, a first locking mechanism which can lock the surrounding frame when it is in the working position is arranged between the lower surrounding frame and the seat pocket connecting piece, and a second locking mechanism is arranged between the upper and lower surrounding frames; a first limiting mechanism is arranged between the locking piece of the second locking mechanism and the upper surrounding frame or the lower surrounding frame, when the surrounding frame is in the working position, the first limiting mechanism limits the locking piece, and the second locking mechanism cannot be unlocked; when the surrounding frame is in the unlockable position, the first limiting mechanism releases the limiting of the locking piece, and realizes the unlocking of the second locking mechanism; the present invention realizes the folding and folding of the seat pocket itself while realizing the adjustment of the seat pocket angle, and is safer and more reliable to use.

Description

Technical Field

[0001] The present invention relates to the field of baby products, and in particular to a foldable seat and a baby stroller with the seat. Background Art

[0002] The seat of a baby stroller in the prior art includes a seat frame with multiple working states and a seat cover installed on the seat frame. The existing seat frame usually includes a surrounding frame and a seat connector for connecting the seat to a component other than the seat such as a stroller. When the seat is switched between multiple working states, the surrounding frame needs to be flipped over, so a locking mechanism is often provided between the surrounding frame and the seat connector for locking the seat frame in different working states. Although this type of seat can be adjusted in angle, it cannot adjust its size and cannot meet the needs of users. Summary of the invention

[0003] The purpose of the present invention is to provide a foldable seat pocket and a baby stroller with the seat pocket, which can realize the folding and folding of the seat pocket itself while realizing the adjustment of the seat pocket angle, and the second locking mechanism can only be unlocked when the surrounding frame is in a specific unlockable position, so that it is safer and more reliable to use and avoids accidental unlocking due to misoperation during use.

[0004] The technical solution of the present invention is: a foldable seat pocket, comprising a seat pocket frame and a seat pocket cover, the seat pocket frame comprising a surrounding frame and a seat pocket connecting member, the surrounding frame comprising an upper surrounding frame and a lower surrounding frame, the upper surrounding frame, the lower surrounding frame and the seat pocket connecting member are rotatably pin-connected, the surrounding frame has a plurality of working positions and unlockable positions, a first locking mechanism is provided between the lower surrounding frame and the seat pocket connecting member, which can lock the surrounding frame when it is in the working position, and a second locking mechanism is provided between the upper surrounding frame and the lower surrounding frame;

[0005] When the first locking mechanism is unlocked, the surrounding frame can rotate relative to the seat pocket connector to change the angle between the two, thereby allowing the surrounding frame to switch between a plurality of working positions and unlockable positions;

[0006] A first limiting mechanism is provided between the locking piece of the second locking mechanism and the upper surrounding frame or the lower surrounding frame. When the surrounding frame is in the working position, the first limiting mechanism limits the locking piece, and the locking piece cannot perform an unlocking movement, and the second locking mechanism cannot be unlocked. When the surrounding frame is in the unlockable position, the first limiting mechanism releases the limiting of the locking piece, and the locking piece can perform an unlocking movement, thereby realizing the unlocking of the second locking mechanism.

[0007] Further, the first locking mechanism includes a first gear disposed between the lower enclosure frame and the seat pocket connecting member, a first tooth groove disposed on the lower enclosure frame and matched with the first gear, a second tooth groove disposed on the seat pocket connecting member and matched with the first gear, a first spring disposed between the first gear and the seat pocket connecting member, a linkage ring disposed between the first gear and the lower enclosure frame, a rotating ring disposed between the upper enclosure frame and the lower enclosure frame, and a first unlocking component disposed on the upper portion of the upper enclosure frame;

[0008] The linkage ring is provided with a first protrusion which passes through the through-opening groove of the lower frame and can slide axially with the corresponding through-opening groove, and the rotating ring is provided with a first inclined block, which can directly or indirectly drive the first protrusion to move toward the first gear through the cooperation of the inclined surface;

[0009] The first unlocking component is connected to the rotating circle through a first traction rope and is used to drive the rotating circle to rotate; when the first unlocking component drives the rotating circle to rotate, the rotating circle pushes the linkage circle to move axially through the inclined surface cooperation, driving the first gear to exit the first tooth groove and completely engage in the second tooth groove, thereby realizing the unlocking of the first locking mechanism.

[0010] Furthermore, a linkage piece is provided between the rotating circle and the lower frame, and the linkage piece has an inclined groove that cooperates with the inclined surface of the above-mentioned first inclined block, and the end face of the linkage piece is in conflict with the end of the first protrusion of the linkage circle; when the rotating circle rotates, the inclined surface of the first inclined block and the inclined groove cooperate to drive the linkage piece to move axially and push the linkage circle to move toward the side of the first gear.

[0011] Further, the second locking mechanism includes a second gear disposed between the upper enclosure frame and the lower enclosure frame, a third tooth groove disposed on the upper enclosure frame and matched with the second gear, a fourth tooth groove disposed on the lower enclosure frame and matched with the second gear, a second spring disposed between the second gear and the lower enclosure frame, a push block, and a second unlocking component disposed on the upper portion of the upper enclosure frame;

[0012] The locking member of the second locking mechanism is arranged in the third tooth groove and can slide radially relative thereto, a return spring is arranged between the locking member and the third tooth groove, and the pushing block is arranged between the second gear and the locking member; a second inclined block cooperating with the inclined surface of the locking member is convexly arranged on the pushing block;

[0013] The second unlocking component is connected to the locking member through a second traction rope and is used to drive the locking member to slide; when the second unlocking component drives the locking member to slide, the locking member pushes the pushing block axially through the inclined surface cooperation, driving the second gear to exit the third tooth groove and completely engage in the fourth tooth groove, thereby realizing the unlocking of the second locking mechanism.

[0014] Furthermore, the upper surrounding frame, the lower surrounding frame and the seat pocket connecting member are rotatably connected by a connecting pin, and the connecting pin is fixed on the seat pocket connecting member;

[0015] The first limiting mechanism comprises a limiting piece fixedly matched with the connecting pin, and a limiting block protruding from the locking member; the limiting piece has a limiting groove portion for allowing the limiting block to slide circumferentially only, and an unlocking groove portion for allowing the limiting block to slide circumferentially and radially at the same time;

[0016] When the surrounding frame is in the working position, the limit block is located in the limit groove of the limit plate, and the locking piece cannot perform radial unlocking movement; when the surrounding frame is in the unlockable position, the limit block is located in the unlocking groove of the limit plate, and the locking piece can perform radial unlocking movement.

[0017] Furthermore, a second limiting mechanism is provided between the seat pocket connecting member and the lower surrounding frame; when the upper surrounding frame and the lower surrounding frame are in the unfolded state, the second limiting mechanism enables the lower surrounding frame to rotate only in front of the seat pocket connecting member.

[0018] Further, the second limiting mechanism comprises a limiting block provided on the seat pocket connecting member and capable of axial movement relative thereto, a third spring provided between the limiting block and the seat pocket connecting member, a guide groove provided on the lower enclosure frame and for the limiting block to slide circumferentially, a mounting groove provided on the lower enclosure frame and communicating with the guide groove, and a slider provided in the mounting groove and capable of axial movement relative thereto; the upper enclosure frame has an active area for the slider to move when the upper enclosure frame is folded and retracted relative to the lower enclosure frame, and a boss is provided in the active area, and the boss has an inclined surface that matches the slider;

[0019] When the upper frame and the lower frame are in an unfolded state, the slider is located in the movable area of ​​the upper frame, and the limiting block is located in the guide groove and can move therein;

[0020] When the upper and lower frames are folded and closed, when the boss rotates to cooperate with the inclined surface of the slider, the slider moves axially and pushes the limiting block out of the guide groove. At this time, the lower frame can be rotated backward to the rear and lower side relative to the seat pocket connector.

[0021] Another technical solution of the present invention is: a baby stroller having the foldable seat pocket.

[0022] The advantages of the present invention are:

[0023] 1. The present invention provides a first locking mechanism between the lower enclosure and the seat pocket connector to lock the enclosure when it is in the working position, and a second locking mechanism between the upper enclosure and the lower enclosure, which can realize the folding and stowing of the seat pocket while realizing the adjustment of the seat pocket angle.

[0024] 2. The setting of the first limiting mechanism in the present invention enables the second locking mechanism to be unlocked only when the surrounding frame is in a specific unlockable position, which is safer and more reliable to use and avoids accidental unlocking due to misoperation during use.

[0025] 3. The second limiting mechanism of the present invention is set so that when the enclosure is in the unfolded state, the lower enclosure can only rotate in front of the seat pocket connector. This design can prevent the enclosure from tipping forward excessively during rotation adjustment, causing the occupant to fall, greatly improving the safety of use. At the same time, when the second limiting mechanism is released, the lower enclosure 5 can be rotated to the rear and lower part of the seat pocket connector 3, so that the folded and gathered seat pocket can better fit the folded frame, further optimizing the folding volume of the entire vehicle for storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of the present invention when it is in use;

[0028] Figure 2 It is a schematic diagram of the assembly structure of the rotary joint of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of one side;

[0030] Figure 4 for Figure 2 A partial enlarged view of the other side;

[0031] Figure 5 It is a schematic diagram of another angle assembly structure of the rotating joint of the present invention;

[0032] Figure 6 It is a side structural schematic diagram of the present invention when it is in a sitting state;

[0033] Figure 7 for Figure 6 Joint breakdown diagram when in state;

[0034] Figure 8 It is a schematic diagram of the side structure of the present invention when it is in a semi-lying state;

[0035] Fig. 9 It is a schematic diagram of the side structure of the present invention when it is in a fully lying state;

[0036] Fig.10 It is a schematic diagram of the side structure of the surrounding frame of the present invention when it is in an unlockable position;

[0037] Fig.11 for Fig.10 Joint breakdown diagram when in state;

[0038] Fig.12 It is a schematic diagram of the structure of the present invention when it is in a folded state.

[0039] Wherein: 1 seat rack; 2 surrounding frame; 3 seat pocket connecting piece; 4 upper surrounding frame; 5 lower surrounding frame; 6 first locking mechanism; 7 second locking mechanism; 8 locking piece; 9 first limiting mechanism; 10 first gear; 11 first tooth groove; 12 second tooth groove; 13 first spring; 14 linkage circle; 15 rotating circle; 16 first unlocking assembly; 17 through-mouth groove; 18 first protrusion; 19 first inclined block; 20 first traction rope; 21 linkage piece; 22 inclined groove; 23 second gear; 24 third tooth groove; 25 fourth tooth groove; 26 second spring; 27 pushing block; 28 second unlocking assembly; 29 second inclined block; 30 second traction rope; 31 connecting pin; 32 limiting piece; 33 limiting block; 34 limiting groove; 35 unlocking groove; 36 second limiting mechanism; 37 limiting block; 38 third spring 32; 39 guide groove; 40 mounting groove; 41 slider; 42 boss; 43 reset spring. DETAILED DESCRIPTION

[0040] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to specific conditions, and the unspecified implementation conditions are usually the conditions in routine experiments.

[0041] like Figures 1 to 12 As shown, a foldable seat bag comprises a seat bag frame 1 and a seat bag cover, the seat bag frame 1 comprises a surrounding frame 2 and a seat bag connector 3, the surrounding frame 2 comprises an upper surrounding frame 4 and a lower surrounding frame 5, the upper surrounding frame 4, the lower surrounding frame 5 and the seat bag connector 3 are rotatably pinned, and the surrounding frame 2 has multiple working positions and unlockable positions; a first locking mechanism 6 is provided between the lower surrounding frame 5 and the seat bag connector 3, which can lock the surrounding frame 2 when it is in the working position, and a second locking mechanism 7 is provided between the upper surrounding frame 4 and the lower surrounding frame 5. In this embodiment, two seat bag connectors 3 are provided, which are symmetrically arranged on both sides of the surrounding frame 2. The upper surrounding frame 4 is in a U-shape with the opening facing downward, and the lower surrounding frame 5 is in a U-shape with the opening facing upward.

[0042] like Figure 2 and Figure 3As shown, the specific structure of the first locking mechanism 6 is: the first locking mechanism 6 includes a first gear 10 arranged between the lower enclosure 5 and the seat pocket connecting member 3, a first tooth groove 11 arranged on the lower enclosure 5 and cooperating with the first gear 10, a second tooth groove 12 arranged on the seat pocket connecting member 3 and cooperating with the first gear 10, a first spring 13 arranged between the first gear 10 and the seat pocket connecting member 3, a linkage ring 14 arranged between the first gear 10 and the lower enclosure 5, a rotating ring 15 arranged between the upper enclosure 4 and the lower enclosure 5, and a first unlocking component 16 arranged on the upper part of the upper enclosure 4; the first unlocking component 16 is connected to the rotating ring 15 through a first traction rope 20 and is used to drive the rotating ring 15 to rotate; wherein, the first unlocking component 16 preferably adopts an unlocking handle or an unlocking button, which is an unlocking button in the figure of this embodiment.

[0043] Among them, the linkage ring 14 has a through-groove 17 that passes through the lower frame 5 and can slide axially with the corresponding through-groove 17. The rotating ring 15 is convexly provided with a first inclined block 19. The first inclined block 19 can directly or indirectly drive the first protrusion 18 to move toward the side of the first gear 10 through the inclined surface cooperation.

[0044] In the figure of this embodiment, a linkage piece 21 is provided between the rotating circle 15 and the lower frame 5. The linkage piece 21 has an inclined groove 22 that cooperates with the inclined surface of the above-mentioned first inclined block 19. The end face of the linkage piece 21 abuts against the end of the first protrusion 18 of the linkage circle 14.

[0045] The working principle of the first locking mechanism 6 is:

[0046] When the first locking mechanism 6 is in a locked state, the first gear 10 is simultaneously stuck in the first tooth groove 11 and the second tooth groove 12 . At this time, the lower frame 5 and the seat pocket connector 3 cannot rotate relative to each other.

[0047] When the first locking mechanism 6 needs to be unlocked, the first unlocking component 16 is operated. The first unlocking component 16 drives the rotating circle 15 to rotate through the first traction rope 20. The rotating circle 15 drives the linkage plate 21 to move axially and pushes the linkage circle 14 to move toward the side of the first gear 10 through the first inclined block 19 and the inclined surface of the inclined groove 22, thereby driving the first gear 10 to exit the first tooth groove 11 and completely engage in the second tooth groove 12, thereby unlocking the first locking mechanism 6.

[0048] When the first locking mechanism 6 is unlocked, the surrounding frame 2 can rotate relative to the seat pocket connector 3 to change the angle between the two, thereby allowing the surrounding frame 2 to switch between a plurality of working positions and unlockable positions.

[0049] like Figures 2 to 4As shown, the specific structure of the second locking mechanism 7 is as follows: the second locking mechanism 7 includes a second gear 23 arranged between the upper enclosure frame 4 and the lower enclosure frame 5, a third tooth groove 24 arranged on the upper enclosure frame 4 and matched with the second gear 23, a fourth tooth groove 25 arranged on the lower enclosure frame 5 and matched with the second gear 23, a second spring 26 arranged between the second gear 23 and the lower enclosure frame 5, a push block 27, and a second unlocking assembly 28 arranged on the upper part of the upper enclosure frame 4; wherein the locking member 8 of the second locking mechanism 7 is arranged in the third tooth groove 24 and can slide radially relative thereto, a return spring 43 is arranged between the locking member 8 and the third tooth groove 24, the push block 27 is arranged between the second gear 23 and the locking member 8; a second inclined block 29 is convexly arranged on the push block 27 to match the inclined surface of the locking member 8; the second unlocking assembly 28 is connected to the locking member 8 through a second traction rope 30 and is used to drive the locking member 8 to slide. wherein, the second unlocking assembly 28 preferably adopts an unlocking handle or an unlocking button, and the unlocking handle is used in the figure of this embodiment.

[0050] The working principle of the second locking mechanism 7 is:

[0051] When the second locking mechanism 7 is in the locked state, the second gear 23 is simultaneously stuck in the third tooth groove 24 and the fourth tooth groove 25. At this time, the upper frame 4 and the lower frame 5 cannot rotate relative to each other, and the frame 2 is in the expanded state.

[0052] When the second locking mechanism 7 needs to be unlocked, the second unlocking component 28 is operated. When the second unlocking component 28 drives the locking piece 8 to slide, the locking piece 8 pushes the pushing block 27 to move axially through the inclined surface cooperation, driving the second gear 23 to exit the third tooth groove 24 and completely engage in the fourth tooth groove 25, thereby unlocking the second locking mechanism 7.

[0053] like Figures 2 to 4 and Figure 7 , Fig.11 As shown, the upper surrounding frame 4 , the lower surrounding frame 5 and the seat pocket connecting member 3 are rotatably connected by a connecting pin 31 , and the connecting pin 31 is fixed on the seat pocket connecting member 3 .

[0054] Furthermore, a first limiting mechanism 9 is provided between the locking piece 8 of the second locking mechanism 7 and the upper surrounding frame 4 or the lower surrounding frame 5 .

[0055] When the surrounding frame 2 is in the working position, the first limiting mechanism 9 limits the locking member 8, the locking member 8 cannot be unlocked, and the second locking mechanism 7 cannot be unlocked; when the surrounding frame 2 is in the unlockable position, the first limiting mechanism 9 releases the limitation on the locking member 8, the locking member 8 can be unlocked, thereby realizing the unlocking of the second locking mechanism 7.

[0056] The specific structure of the first limiting mechanism 9 is as follows: the first limiting mechanism 9 includes a limiting piece 32 that is fixedly matched with the above-mentioned connecting pin 31, and a limiting block 33 protruding from the locking member 8; the limiting piece 32 has a limiting groove 34 that can only allow the limiting block 33 to slide circumferentially, and an unlocking groove 35 that can allow the limiting block 33 to slide circumferentially and radially at the same time. In this embodiment, the connecting pin 31 is relatively fixed by meshing the gear part at its end with the gear groove at the center of the limiting piece 32.

[0057] The specific working principle of the first limiting mechanism 9 is:

[0058] like Figures 6 to 9 As shown, when the surrounding frame 2 is in the working position, the limiting block 33 is located in the limiting groove 34 of the limiting plate 32, and the first limiting mechanism 9 limits the locking member 8, so that the locking member 8 cannot perform radial unlocking movement, thereby making the second locking mechanism 7 unable to unlock.

[0059] like Figure 10 to Figure 11 As shown, when the frame 2 is in the unlockable position, the limit block 33 is located in the unlocking groove 35 of the limit plate 32, the first limit mechanism 9 releases the limit on the locking piece 8, and the locking piece 8 can perform radial unlocking movement, thereby realizing the unlocking of the second locking mechanism 7.

[0060] The first limiting mechanism 9 enables the second locking mechanism 7 to be unlocked only when the surrounding frame 2 is in a specific unlockable position, which makes the use safer and more reliable and avoids accidental unlocking due to misoperation during use.

[0061] like Figures 2 to 4 As shown, a second limiting mechanism 36 is provided between the seat pocket connecting member 3 and the lower surrounding frame 5. When the upper surrounding frame 4 and the lower surrounding frame 5 are in the unfolded state, the second limiting mechanism 36 allows the lower surrounding frame 5 to rotate only in front of the seat pocket connecting member 3. This design can prevent the surrounding frame 2 from tipping forward excessively during rotation adjustment and causing the passenger to fall, greatly improving the safety of use.

[0062] The specific structure of the second limiting mechanism 36 is as follows: the second limiting mechanism 36 includes a limiting block 37 arranged on the seat pocket connecting member 3 and capable of axial movement relative to the seat pocket connecting member 3, a third spring 38 arranged between the limiting block 37 and the seat pocket connecting member 3, a guide groove 39 arranged on the lower surrounding frame 5 for the limiting block 37 to slide circumferentially, a mounting groove 40 arranged on the lower surrounding frame 5 and communicating with the guide groove 39, and a slider 41 arranged in the mounting groove 40 and capable of axial movement relative to the upper surrounding frame 4 has an active area for the slider 41 to move when the upper surrounding frame 4 is folded and retracted relative to the lower surrounding frame 5, and a boss 42 is provided in the active area, and the boss 42 has an inclined surface that cooperates with the slider 41.

[0063] The specific working principle of the second limiting mechanism 36 is:

[0064] When the upper enclosure 4 and the lower enclosure 5 are in the unfolded state, the slider 41 is located in the movable area of ​​the upper enclosure 4, and the limiting block 37 is located in the guide groove 39. When the enclosure 2 rotates, the limiting block 37 slides in the guide groove 39.

[0065] When the upper enclosure 4 and the lower enclosure 5 are folded and folded, when the boss 42 rotates to cooperate with the inclined surface of the slider 41, the slider 41 moves axially and pushes the limiting block 37 out of the guide groove 39. At this time, the lower enclosure 5 can rotate backward relative to the seat pocket connector 3 to its rear lower side. Fig.12 .

[0066] The use principle of the seat pocket of the present invention is:

[0067] like Figure 1 , Figure 6 , Figure 8 , Fig. 9 As shown, when the seat pocket is in use, the first locking mechanism 6 and the second locking mechanism 7 are both in the locking position, and the upper surrounding frame 4, the lower surrounding frame 5 and the seat pocket connector 3 are relatively fixed.

[0068] As shown Figure 6 , Figure 8 , Fig. 9 As shown, when the seat pocket needs to be adjusted in front and rear angles, the first locking mechanism 6 is unlocked, the second locking mechanism 7 is still in a locked state, and the surrounding frame 2 is in an unfolded state. At this time, the surrounding frame 2 can rotate relative to the seat pocket connector 3 to change the angle between the two, so that the surrounding frame 2 can be converted between multiple working positions. However, the second locking mechanism 7 cannot be unlocked due to the restriction of the first limiting mechanism 9, ensuring the safety of use. At the same time, due to the restriction of the second limiting mechanism 36, the lower surrounding frame 5 can only rotate in front of the seat pocket connector 3, and cannot rotate to the lower side and rear lower side of the seat pocket connector 3, further ensuring the safety of use.

[0069] Fig.10 , Fig.12 As shown, when the seat pocket needs to be folded and folded, first release the lock of the first locking mechanism 6, the second locking mechanism 7 is still in the locked state, the frame 2 is in the unfolded state, and the frame 2 is flipped forward to reach the unlockable position. At this time, the first limiting mechanism 9 releases the restriction on the locking member 8, and then the second unlocking assembly 28 releases the lock of the second locking mechanism 7, and the upper frame 4 is flipped forward, so that the upper frame 4 and the lower frame 5 are folded and folded and turned down together. When the two are folded to a certain angle, the second limiting mechanism 36 automatically releases the restriction on the lower frame 5. At this time, the lower frame 5 can be further rotated backward relative to the seat pocket connector 3 to its rear lower part, so that the folded and folded seat pocket can better fit the folded frame, and further optimize the folding volume of the whole vehicle for storage and transportation.

[0070] The present invention also provides a baby stroller, comprising the above-mentioned seat pocket, through which the seat pocket can be adjusted in angle and folded and collapsed, and when assembled on the stroller frame, the gap between the folded seat pocket and the folded frame can be reduced, so that the two can fit more closely, thereby further optimizing the folding volume of the entire stroller for storage and transportation.

[0071] The above are only specific application examples of the present invention and do not constitute any limitation on the protection scope of the present invention. In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

Claims

1. A foldable seat, comprising a seat frame (1) and a seat cover, wherein the seat frame (1) comprises a surrounding frame (2) and a seat connector (3), characterized in that: The enclosure frame (2) comprises an upper enclosure frame (4) and a lower enclosure frame (5); the upper enclosure frame (4), the lower enclosure frame (5) and the seat pocket connecting member (3) are rotatably pin-connected to each other; the enclosure frame (2) has a plurality of working positions and unlockable positions; a first locking mechanism (6) is provided between the lower enclosure frame (5) and the seat pocket connecting member (3) for locking the enclosure frame (2) when the enclosure frame (2) is in the working position; and a second locking mechanism (7) is provided between the upper enclosure frame (4) and the lower enclosure frame (5); When the first locking mechanism (6) is unlocked, the surrounding frame (2) can rotate relative to the seat pocket connecting member (3) so that the angle between the two changes, thereby allowing the surrounding frame (2) to switch between a plurality of working positions and unlockable positions; A first limiting mechanism (9) is provided between the locking member (8) of the second locking mechanism (7) and the upper surrounding frame (4) or the lower surrounding frame (5); when the surrounding frame (2) is in the working position, the first limiting mechanism (9) limits the locking member (8), the locking member (8) cannot be unlocked, and the second locking mechanism (7) cannot be unlocked; when the surrounding frame (2) is in the unlockable position, the first limiting mechanism (9) releases the limiting of the locking member (8), the locking member (8) can be unlocked, thereby realizing the unlocking of the second locking mechanism (7).

2. The foldable seat bag according to claim 1, characterized in that: The first locking mechanism (6) comprises a first gear (10) arranged between the lower enclosure (5) and the seat pocket connecting member (3), a first tooth groove (11) arranged on the lower enclosure (5) and cooperating with the first gear (10), a second tooth groove (12) arranged on the seat pocket connecting member (3) and cooperating with the first gear (10), a first spring (13) arranged between the first gear (10) and the seat pocket connecting member (3), a linkage ring (14) arranged between the first gear (10) and the lower enclosure (5), a rotating ring (15) arranged between the upper enclosure (4) and the lower enclosure (5), and a first unlocking component (16) arranged on the upper part of the upper enclosure (4); The linkage ring (14) is provided with a first protrusion (18) which passes through a through-groove (17) of the lower enclosure frame (5) and can slide axially with the corresponding through-groove (17); the rotating ring (15) is provided with a first inclined block (19) which can directly or indirectly drive the first protrusion (18) to move toward one side of the first gear (10) through the cooperation of the inclined surface; The first unlocking component (16) is connected to the rotating circle (15) via a first traction rope (20) and is used to drive the rotating circle (15) to rotate; when the first unlocking component (16) drives the rotating circle (15) to rotate, the rotating circle (15) pushes the linkage circle (14) to move axially through the inclined surface, driving the first gear (10) to exit the first tooth groove (11) and completely engage in the second tooth groove (12), thereby realizing the unlocking of the first locking mechanism (6).

3. The foldable seat bag according to claim 2, characterized in that: A linkage piece (21) is provided between the rotating circle (15) and the lower frame (5); the linkage piece (21) has an inclined groove (22) that cooperates with the inclined surface of the first inclined block (19); the end surface of the linkage piece (21) abuts against the end of the first protrusion (18) of the linkage circle (14); when the rotating circle (15) rotates, the first inclined block (19) cooperates with the inclined surface of the inclined groove (22) to drive the linkage piece (21) to move axially and push the linkage circle (14) to move toward the first gear (10).

4. The foldable seat bag according to claim 1, characterized in that: The second locking mechanism (7) comprises a second gear (23) arranged between the upper frame (4) and the lower frame (5), a third tooth groove (24) arranged on the upper frame (4) and matched with the second gear (23), a fourth tooth groove (25) arranged on the lower frame (5) and matched with the second gear (23), a second spring (26) arranged between the second gear (23) and the lower frame (5), a pushing block (27), and a second unlocking component (28) arranged on the upper part of the upper frame (4); The locking member (8) of the second locking mechanism (7) is arranged in the third tooth groove (24) and can slide radially relative thereto; a return spring (43) is arranged between the locking member (8) and the third tooth groove (24); the pushing block (27) is arranged between the second gear (23) and the locking member (8); and a second inclined block (29) is convexly provided on the pushing block (27) and matches the inclined surface of the locking member (8); The second unlocking component (28) is connected to the locking member (8) via a second traction rope (30) and is used to drive the locking member (8) to slide; when the second unlocking component (28) drives the locking member (8) to slide, the locking member (8) pushes the pushing block (27) to move axially through the inclined surface cooperation, driving the second gear (23) to exit the third tooth groove (24) and completely engage in the fourth tooth groove (25), thereby realizing the unlocking of the second locking mechanism (7).

5. The foldable seat bag according to claim 1, characterized in that: The upper surrounding frame (4), the lower surrounding frame (5) and the seat pocket connecting member (3) are rotatably connected via a connecting pin (31), and the connecting pin (31) is fixedly arranged on the seat pocket connecting member (3); The first limiting mechanism (9) comprises a limiting piece (32) fixedly matched with the connecting pin (31) and a limiting block (33) protruding from the locking member (8); the limiting piece (32) comprises a limiting groove (34) for allowing the limiting block (33) to slide circumferentially only and an unlocking groove (35) for allowing the limiting block (33) to slide circumferentially and radially at the same time; When the surrounding frame (2) is in the working position, the limiting block (33) is located in the limiting groove (34) of the limiting plate (32), and the locking member (8) cannot perform radial unlocking movement; when the surrounding frame (2) is in the unlocking position, the limiting block (33) is located in the unlocking groove (35) of the limiting plate (32), and the locking member (8) can perform radial unlocking movement.

6. The foldable seat bag according to claim 1, characterized in that: A second limiting mechanism (36) is provided between the seat pocket connecting member (3) and the lower surrounding frame (5); when the upper surrounding frame (4) and the lower surrounding frame (5) are in an unfolded state, the second limiting mechanism (36) enables the lower surrounding frame (5) to rotate only in front of the seat pocket connecting member (3).

7. The foldable seat bag according to claim 6, characterized in that: The second limiting mechanism (36) comprises a limiting block (37) arranged on the seat pocket connecting member (3) and capable of axial movement relative to the seat pocket connecting member (3), a third spring (38) arranged between the limiting block (37) and the seat pocket connecting member (3), a guide groove (39) arranged on the lower surrounding frame (5) and for the limiting block (37) to slide circumferentially, a mounting groove (40) arranged on the lower surrounding frame (5) and communicating with the guide groove (39), and a sliding block (41) arranged in the mounting groove (40) and capable of axial movement relative to the upper surrounding frame (4). The upper surrounding frame (4) has an active area for the sliding block (41) to move when the upper surrounding frame (4) is folded and retracted relative to the lower surrounding frame (5), and a boss (42) is arranged in the active area, and the boss (42) has an inclined surface that matches the sliding block (41). When the upper enclosure frame (4) and the lower enclosure frame (5) are in an unfolded state, the sliding block (41) is located in the movable area of ​​the upper enclosure frame (4), and the limiting block (37) is located in the guide groove (39) and can move therein; When the upper surrounding frame (4) and the lower surrounding frame (5) are folded and folded together, when the boss (42) rotates to cooperate with the inclined surface of the slider (41), the slider (41) moves axially and pushes the limiting block (37) out of the guide groove (39), and at this time, the lower surrounding frame (5) can rotate backward to the rear and lower side relative to the seat pocket connecting member (3).

8. A baby stroller, characterized in that: The utility model has a foldable seat bag as claimed in any one of claims 1 to 7.

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