Foldable baby carriage

Abstract

The foldable baby carriage comprises a frame, a first locking piece, a seat pocket and an unlocking device, and the frame is of a foldable structure; the first locking piece is used for locking the frame in an unfolded state; the seat pocket is mounted on the frame and has a using posture and an overturning posture relative to the frame; the unlocking device is installed on the frame, when the seat pocket is switched from the using posture to the overturning posture, the unlocking device is provided with a triggering position which rotates along with the seat pocket and acts on the first locking piece to unlock the frame, and the unlocking device avoids the first locking piece after crossing the triggering position and allows the first locking piece to reset. And the first locking piece can lock the frame in the unfolded state. When the stroller frame is unfolded in the first step, although the seat pocket is still in the overturning posture, the stroller frame is locked in the unfolded state, the folding and unfolding logic of the baby stroller is different from that in the prior art, and in the unfolding process, the stroller frame can be stably kept in the unfolded state and is safer.

Description

Technical Field

[0001] This application relates to the technical field of children's products, and specifically to a foldable baby carriage. Background Art

[0002] Existing foldable baby carriages include a seat and a frame. The seat includes a seat cushion and a backrest. Among them, the seat itself has an unfolded state in which the backrest is away from the seat cushion for a child to sit on, and a folded state in which the backrest rotates and closes to the seat cushion. And the seat has a use posture and a flipped posture relative to the frame. In the use posture, it is for infants and toddlers to use normally for sitting and riding. At this time, the seat itself is in the unfolded state, and the flipped posture is other postures relative to the use posture. When the whole baby carriage is stored and folded, not only does the frame itself need to be folded, but also when the whole seat is flipped relative to the frame to the extreme position, it enters the folded posture.

[0003] The frame itself also has a folded state and an unfolded state. For example, the frame includes a push handle, front feet and rear feet. The corresponding folded state is that the push handle rotates and closes to the front feet or rear feet, and the front feet and rear feet approach each other. There is a linkage relationship between the push handle and the front feet or rear feet during the rotation process.

[0004] For the above-mentioned type of baby carriage, the seat and the frame are linked and folded. For example, during the process of the seat switching to the folded state or the flipped posture, the frame switches to the unlocked state, and then the frame is operated to rotate and fold. And as long as the seat is always in the flipped posture, the frame is always in the unlocked state. This results in that when unfolding the baby carriage, although the frame is switched to the unfolded state one step ahead of the seat, since the seat is still in the flipped posture, the frame is still in the unlocked state. Although the front feet and rear feet stand on the ground to prevent the push handle from rotating and folding, once the operation is improper, such as lifting or tilting the frame, the frame may refold, which is not conducive to the unfolding operation and there are also some safety hazards. Utility Model Content

[0005] This application provides a foldable baby carriage, providing a new folding and unfolding logic and improving the use safety.

[0006] This application provides a foldable baby carriage, including:

[0007] A frame, adopting a foldable structure;

[0008] A first locking member for locking the frame in the unfolded state;

[0009] A seat pocket, installed on the frame. Relative to the frame, the seat pocket has a use posture and a flipped posture;

[0010] An unlocking device is installed on the frame. When the seat pocket is switched from the use posture to the flip posture, the unlocking device has a trigger position that rotates with the seat pocket and acts on the first locking member to unlock the frame. After passing the trigger position, the unlocking device avoids the first locking member and allows the first locking member to reset, so that the first locking member can lock the frame in the unfolded state.

[0011] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0012] Optionally, relative to the first locking member, the unlocking device sequentially has an initial position, the trigger position and an avoidance position during the rotation process;

[0013] In the initial position, the seat pocket is in a use posture relative to the frame;

[0014] In the avoidance position, the seat pocket is in a flipped posture relative to the frame;

[0015] Wherein, the first locking member is allowed to reset in both the initial position and the avoidance position.

[0016] Optionally, the unlocking device includes:

[0017] A turntable is mounted on the frame and linked to the seat pocket, the outer periphery of the turntable is provided with an annular accommodation area, and when the unlocking device is in the initial position and the avoidance position, the first locking member is reset into the accommodation area;

[0018] A shift block is installed on the rotating disk. When the unlocking device is in the triggering position, the shift block abuts against the first locking member to implement unlocking.

[0019] Optionally, the shift block is movably mounted on the rotating disk, and has a first state of extending into the accommodating area and a second state of moving out of the accommodating area;

[0020] An elastic member is installed on the rotating disk to make the shift block tend to the first state.

[0021] Optionally, when the unlocking device moves from the initial position toward the triggering position, the shifting block remains in the first state and correspondingly triggers the first locking member to implement unlocking;

[0022] When the unlocking device moves from the avoidance position toward the triggering position, the shifting block is switched to the second state by the action of the first locking member to avoid triggering the first locking member.

[0023] Optionally, the rotating disk is provided with a mounting groove communicating with the accommodating area, and the shifting block is pivotally connected in the mounting groove;

[0024] In the first state, at least a portion of the shift block extends from the mounting slot into the accommodating area;

[0025] In the second state, the shift block is swung and received in the installation groove.

[0026] Optionally, one side of the installation groove is a limiting groove wall, and the shift block abuts against the limiting groove wall in the first state to prevent rotation.

[0027] Optionally, there are two symmetrically arranged shift blocks, and when the unlocking device is in an initial position, the first locking member is located between the two shift blocks;

[0028] The unlocking device can rotate in both directions, and moves from an initial position to a corresponding triggering position in any rotation direction.

[0029] Optionally, the accommodation area is divided into a first section and a second section by the two shifting blocks;

[0030] When the unlocking device is in the initial position, the first locking member is in the first section;

[0031] When the unlocking device is in the avoidance position, the first locking member is in the second section.

[0032] Optionally, the frame includes a plurality of supporting members that are rotatably matched around a first axis, and the first locking member is engaged with at least two of them to keep the frame in an unfolded state;

[0033] When unlocked, the first locking member releases the engagement with at least one supporting member.

[0034] The foldable baby stroller of the present application has a trigger position to unlock the frame in conjunction with the seat pocket when the seat pocket switches to the flipped position, and then the seat pocket continues to move until it reaches the flipped position. During this process, the first locking member is reset. When the frame is unfolded, although the seat pocket is still in the flipped position, the frame is already in a locked state. Therefore, the folding and unfolding logic of the baby stroller of the present application is different from that of the prior art. Based on this, during the unfolding process, the frame can be stably maintained in the unfolded state, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural view of a foldable baby carriage in an unfolded state according to an embodiment of the present application;

[0036] Figure 2 for Figure 1 An exploded view of the space between the seat and the frame of a foldable stroller;

[0037] Figure 3 is Figure 1 a structural view of the middle frame of a foldable baby stroller;

[0038] Figure 4 is Figure 1 a structural view of the foldable baby stroller in a folded state;

[0039] Figure 5 is Figure 3 a front view of the frame;

[0040] Figure 6 is an exploded view between the unlocking device and the frame of the foldable baby stroller according to an embodiment of the present application;

[0041] Figure 7 is an exploded view between the front legs, rear legs and the push handle of the foldable baby stroller according to an embodiment of the present application;

[0042] Figure 8 is Figure 5 a partial cross-sectional view in the A-A direction (the unlocking device is in the initial position) in;

[0043] Figure 9 is Figure 8 a schematic diagram of the positions of the first section and the second section in;

[0044] Figure 10 is Figure 5 a partial cross-sectional view in the A-A direction (the unlocking device rotates in the first rotation direction and is in the trigger position) in;

[0045] Figure 11 is Figure 5 a partial cross-sectional view in the A-A direction (the unlocking device is in the avoidance position) in;

[0046] Figure 12 is Figure 5 a partial cross-sectional view in the B-B direction (the push handle avoids the first locking member) in;

[0047] Figure 13 is Figure 11 a partial cross-sectional view in which the unlocking device rotates in the second rotation direction and the first locking member drives the dial to swing in;

[0048] Figure 14 is Figure 5 a partial cross-sectional view in the A-A direction (the unlocking device rotates in the second rotation direction and is in the trigger position) in;

[0049] Figure 15 is Figure 14 a partial cross-sectional view in which the unlocking device is in the avoidance position in;

[0050] Figure 16For Figure 15 Partial cross-sectional view of the unlocking device rotating in the first rotation direction and the first locking member driving the dial to swing;

[0051] Figure 17 Schematic diagram of the first locking member and the second locking member in the foldable stroller according to an embodiment of the present application;

[0052] Figure 18 Exploded view of the unlocking device, the third locking member and the frame in the foldable stroller according to an embodiment of the present application;

[0053] Figure 19 Front view of the seat pocket in the foldable stroller according to an embodiment of the present application;

[0054] Figure 20 Structural view of the seat pocket in the foldable stroller according to an embodiment of the present application;

[0055] Figure 21 For Figure 20 Enlarged view of part D in;

[0056] Figure 22 For Figure 19 Partial cross-sectional view in the C-C direction in.

[0057] Explanation of the reference numerals in the figure is as follows:

[0058] 1000, stroller;

[0059] 100, frame; 110, first locking member; 120, side frame; 130, front foot; 131, second locking groove;

[0060] 140, rear foot; 141, first unlocking member; 142, second locking member; 143, first return spring; 144, second return spring;

[0061] 150, push handle; 151, first locking groove; 152, avoidance area; 160, linkage rod; 170, third locking member;

[0062] 200, seat pocket; 201, rotation axis; 210, seat cushion; 211, button part; 212, adapter; 220, backrest; 230, trigger member; 240, transmission seat;

[0063] 300, unlocking member; 310, steel wire;

[0064] 400, unlocking device; 410, turntable; 411, accommodation area; 4111, first section; 4112, second section; 412, installation groove; 413, limiting groove wall; 414, adapter seat; 415, third unlocking member;

[0065] 420, dial; 421, arc surface. Detailed implementation manners

[0066] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0067] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0069] In this application, terms such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity or order of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0070] Refer to Figures 1 to 13 , this application provides a foldable baby stroller, which is hereinafter simply referred to as baby stroller 1000 for convenience of narration and understanding. The baby stroller 1000 of this application includes a frame 100 and a seat 200. The frame 100 adopts a foldable structure and has an unfolded state and a folded state. The baby stroller 1000 further includes a first locking member 110 for locking the frame 100 in the unfolded state. The seat 200 is installed on the frame 100 and has a use posture and a flipping posture relative to the frame 100. The seat 200 is for infants and toddlers to sit in the use posture, and the flipping posture is other postures relative to the use posture. When the whole vehicle is folded and stored, after the seat 200 releases the mutual limit with the frame 100, it can enter the flipping posture, and when it flips to the limit position (or the whole vehicle is folded and stored), it is used as the folded posture.

[0071] The baby stroller 1000 further includes an unlocking device 400 mounted on the frame 100. When the seat 200 is switched from the use posture to the folded posture, that is, in one of the flipped postures, the unlocking device 400 has a trigger position (such as the first locking member 110) that rotates with the seat 200 and acts on the first locking member 110 to unlock the frame 100. Figure 10 ), the unlocking device 400 may include one or more components, at least one of which may directly or indirectly act on the first locking member 110. Subsequently, the seat pocket 200 continues to flip, and the unlocking device 400 avoids the first locking member 110 after passing the trigger position, and allows the first locking member 110 to reset (such as Figure 11 ), as for the “resetting of the first locking member 110” at this time, it should be understood that the unlocking device 400 does not interfere with the resetting movement of the first locking member 110, for example, the first locking member 110 returns to its original position, but at this time it will not affect the frame 100 being locked in the unfolded state.

[0072] When the baby carriage 1000 of the present application is unfolded, the frame 100 can be unfolded first and the first locking member 110 can be reset to lock the frame 100 so that it remains stably in the unfolded state, regardless of the posture of the seat 200. The seat 200 can be switched to the use posture first, or the frame 100 can be unfolded and locked, and then the seat 200 can be rotated to unfold.

[0073] Therefore, the folding and unfolding logic of the baby stroller of the present application is different from that of the prior art, but the linkage folding of the whole stroller can still be realized. In particular, during the unfolding operation, the frame is unfolded before the seat pocket and is locked in the unfolded state, so as to prevent the frame from being refolded, thereby improving the safety of the unfolding operation. The resetting of the first locking member 110 is mainly to facilitate keeping the frame 100 in the unfolded state. When the frame is not in the unfolded state, it is not critical whether the first locking member 110 is reset.

[0074] In order to prevent the resetting of the first locking member 110 from being limited by the current state of the frame 100, in one embodiment, the frame 100 includes:

[0075] A first supporting member, wherein the first locking member 110 is movably mounted on the first supporting member;

[0076] The second support member is rotatably cooperated with the first support member around the first axis. The second support member is provided with a first locking groove 151. The first locking member 110 is placed in the first locking groove 151 to lock the frame 100 in the unfolded state. When unlocking, the first locking member 110 moves out of the first locking groove 151 and allows the second support member to rotate relative to the first support member. Relative to the first axis, the second support member has an avoidance area 152 corresponding to the radial position of the first locking groove 151. After the second support member rotates, the avoidance area 152 corresponds to the first locking member 110, thereby allowing the first locking member 110 to be reset.

[0077] In this embodiment, after one of the support members is folded, the first locking member 110 can still be reset. Therefore, when the number of support members is large, the phase position relationship between other support members can be selectively maintained, flexibly adapting to different scenario requirements.

[0078] Of course, if the second support member does not have an avoidance area 152 and abuts against the first locking member 110 to prevent its reset after rotation, the frame 100 needs to be switched to the unfolded state, that is, the first locking groove 151 is aligned with the first locking member 110, and the first locking member 110 is immediately reset. In any case, the unlocking device 400 does not interfere with the reset movement of the first locking member 110 during the whole process.

[0079] For easy understanding, the present application provides a structure of the frame 100. Refer to Figures 1 to 3 and Figure 7 , the frame 100 includes a push handle 150 as the second support member, a rear foot 140 as the first support member, and a front foot 130 hinged to the rear foot. In the figure, the top of the front foot 130 is hinged to the rear foot 140 around the second axis and is linked with the push handle 150 through a linkage rod 160. The push handle 150 is provided with an avoidance area 152 (such as Figure 12 the bold dashed area in).

[0080] Wherein, relative to the first locking member 110, the unlocking device 400 successively has an initial position, a triggering position, and an avoidance position during rotation. When the unlocking device 400 is in the initial position, the seat pocket 200 is in the use posture relative to the frame 100; when the unlocking device 400 is in the avoidance position, the seat pocket 200 is in the flipping posture relative to the frame 100. Among them, the unlocking device 400 allows the first locking member 110 to be reset both in the initial position and the avoidance position. For example, during the use posture, the folding posture of the seat pocket 200, and the rotation process from the folding posture to the use posture, the frame 100 can be locked in the unfolded state.

[0081] In one embodiment, the frame 100 includes two side frames 120 arranged oppositely, and the seat pocket 200 is rotatably installed between the two side frames 120 around a rotation axis 201, and the rotation axis 201 is in the same direction as the two side frames 120. Among them, the rotation axis 201 and the first axis are coaxial. As Figure 6 shown, the unlocking device 400 includes a turntable 410 and a dial block 420. The turntable 410 is installed on the frame 100 and is linked with the seat pocket 200. For example, the turntable 410 is rotatably connected to the frame 100 around the rotation axis 201 and rotates synchronously with the seat pocket 200. The outer periphery of the turntable 410 is provided with an annular accommodation area 411 (such as Figure 8(the thick dashed-line area), the accommodating area 411 extends around the rotation axis 201. In the initial position and the avoidance position of the unlocking device 400, the first locking member 110 can be reset to the accommodating area 411 or reset to the accommodating area 411 after the carriage 100 is in the unfolded state. Among them, the shifting block 420 is movably installed on the turntable 410 and has a first state of extending into the accommodating area 411 and a second state of moving out of the accommodating area 411. An elastic member that makes the shifting block 420 tend to the first state is installed on the turntable 410. Combining with the movement of the turntable 410:

[0082] The seat pocket 200 switches from the use posture to the folded posture. Correspondingly, the unlocking device 400 rotates and tends to the triggering position from the initial position. The shifting block 420 remains in the first state and, at the triggering position, triggers the first locking member 110 to move and unlock it; the unlocking device 400 continues to rotate. When the shifting block 420 passes over the first locking member 110, that is, when the unlocking device 400 passes over the triggering position and enters the avoidance position, the first locking member 110 resets;

[0083] On the contrary, when the seat pocket 200 switches from the folded posture to the use posture, when the unlocking device 400 rotates and tends to the triggering position from the avoidance position, the shifting block 420 is switched to the second state under the action of the first locking member 110 to avoid triggering the first locking member 110, thereby avoiding unlocking the carriage 100. Although the unlocking device 400 will pass through the triggering position during both the folding and unfolding processes of the seat pocket 200, only the first locking member 110 is triggered and unlocked during the folding process.

[0084] See Figures 8 to 13 As shown in, the turntable 410 is provided with an installation groove 412 communicating with the accommodating area 411, and the shifting block 420 is pivotally connected in the installation groove 412;

[0085] In the first state, at least a part of the shifting block 420 extends from the installation groove 412 into the accommodating area 411;

[0086] In the second state, the shifting block 420 swings and is received in the installation groove 412.

[0087] In a preferred embodiment, the plane formed by the swinging of the shifting block 420 is parallel to the plane of rotation of the turntable 410, making the structure more compact. Correspondingly, the elastic member acting on the shifting block 420 is a torsion spring. Among them, one side of the installation groove 412 is a limiting groove wall 413. When the shifting block 420 is in the first state, it abuts against the limiting groove wall 413 to be prevented from rotating, so as to be able to drive the first locking member 110 out of the first locking groove 151. When the seat pocket 200 switches from the folded posture to the use posture, the first locking member 110 abuts against the shifting block 420 to swing it to the second state to allow the first locking member 110 to pass through.

[0088] See Figures 8 to 16In one embodiment, the seat pocket 200 is detachably connected to the frame 100 and has two postures facing the front side and the rear side, and correspondingly has two folded postures of rotating close to the front foot 130 and the rear foot 140, and the corresponding unlocking device 400 can rotate in both directions and has a first rotation direction around the first axis (such as Figure 10 The dashed arrow in the figure) and the second rotation direction (such as Figure 14 Accordingly, two shifting blocks 420 are symmetrically arranged, and when the unlocking device 400 is in the initial position, the first locking member 110 is located between the two shifting blocks 420, and the unlocking device 400 moves from the initial position to the corresponding triggering position (such as Figure 10 and Figure 14 ).

[0089] Among them, see Figure 9 , the accommodation area 411 is divided into a first section 4111 and a second section 4112 by two shifting blocks 420;

[0090] The unlocking device 400 is in the initial position, and the first locking member 110 is in the first section 4111;

[0091] When the unlocking device 400 is in the avoidance position, the first locking member 110 is in the second section 4112 .

[0092] In one embodiment, an adapter seat 414 for mounting the seat pocket 200 is fixed on the turntable 410, and the adapter seat 414 is detachably connected to the seat pocket 200. The seat pocket 200 includes a seat cushion 210 for supporting the buttocks of a child, and a backrest 220 rotatably matched with the seat cushion 210. The backrest 220 is used to support the back of the child, and the angle between the backrest 220 and the seat cushion 210 is adjustable. Accordingly, the seat pocket 200 itself has an unfolded state in which the backrest 220 is away from the seat cushion 210, and a folded state in which the backrest 220 is close to the seat cushion 210. When the seat pocket 200 is in use, the seat pocket 200 is in the unfolded state. Adapters 212 detachably matched with the adapter seat 414 are provided on both sides of the seat cushion 210, and the unlocking device 400 rotates with the seat cushion 210.

[0093] The following describes the folding and unfolding operation of the entire vehicle and the state of the first locking member:

[0094] Folding operation: Unlock the seat pocket 200, causing the seat pocket 200 to drive the unlocking device 400 to rotate. During the process of the seat pocket 200 switching to the folded posture, lift the frame 100. For example, one can hold the buckle part 211 at the end of the seat cushion 210 with one hand. While accelerating the flipping of the seat pocket 200, make the front feet 130 and the rear feet 140 leave the ground. Until the unlocking device 400 rotates to the trigger position, the first locking member 110 exits the first locking groove 151, and the push handle 150 and the front feet 130 rotate and approach the rear feet 140 under the action of gravity. The unlocking device 400 passes over the trigger position and enters the avoidance position, and the first locking member 110 resets.

[0095] Unfolding operation: Unfold the push handle 150 and the front feet 130. During the rotation of the push handle 150, it slides against the first locking member 110. After the first locking groove 151 aligns with the first locking member 110, the first locking member 110 resets and extends into the first locking groove 151 to lock the frame 100 in the unfolded state. Then rotate the seat pocket 200 to the use posture, driving the unlocking device 400 to rotate. During this period, the first locking member 110 acts on the dial block 420 to make it swing and pass through the dial block 420 to prevent the frame 100 from being unlocked.

[0096] In the folding operation, since the time period of the unlocking device 400 at the trigger position is short, in one embodiment, the dial block 420 has an arc surface 421 extending along the swing axis. The arc surface 421 acts on the first locking member 110 corresponding to the trigger position. Then, extend the circumferential length of the arc surface 421 to extend this time period. In a preferred embodiment, a counterweight is provided on the push handle 150 to increase the gravity received by the push handle 150 to ensure that the push handle 150 rotates successfully during this time period. In another embodiment, a torsion spring is provided between the front feet 130 and the rear feet 140, and the torsion spring applies a driving force for the front feet 130 to rotate and approach the rear feet 140 to ensure that the front feet 130 rotate successfully during this time period.

[0097] In one embodiment, a first unlocking member 141 is provided on the frame 100. The first unlocking member 141 is linked with the first locking member 110 and is used to unlock the first locking member 110. Applicable to the foregoing situation, when the seat pocket 200 is rotating and the front feet 130 and the rear feet 140 still stand on the ground and miss the time period without folding, the first unlocking member 141 can be operated independently to fold the frame 100. Or, after the seat pocket 200 is disassembled from the frame 100, the first unlocking member 141 can be operated independently to fold the frame 100. The first unlocking member 141 can be movably arranged on the push handle 150, or as Figure 17 and Figure 18 shown, the first unlocking member 141 is slidably installed on the rear feet 140 and is directly connected to the first locking member 110. In the figure, the first locking member 110 slides in a plane perpendicular to the first axis, or in other embodiments, the first locking member 110 slides along the first axis.

[0098] Continue to refer to Figure 17 and Figure 18 In one embodiment, a second locking member 142 is slidably installed in the rear foot 140. The front foot 130 is provided with a second locking groove 131 that cooperates with the second locking member 142. The second locking member 142 and the first locking member 110 are linked by a guiding inclined surface. A first return spring 143 and a second return spring 144 are provided in the rear foot 140 and act on the first locking member 110 and the second locking member 142 respectively to reset the two. When the first locking member 110 slides out of the first locking groove 151, the second locking member 142 is driven to exit the second locking groove 131 through the guiding inclined surface, and the first return spring 143 and the second return spring 144 are compressed. If the linkage rod 160 is omitted between the front foot 130 and the push handle 150, that is, there is no linkage relationship between the two, when the push handle 150 is folded, the first locking member 110 is reset, and the second locking member 142 is reset to limit the rotation of the front foot 130.

[0099] Refer to Figures 18 to 22 In one embodiment, a third locking member 170 is movably provided on one of the turntable 410 and the vehicle frame 100, and has a locked state of extending into the other to limit the rotation of the turntable 410. In the figure, the third locking member 170 is a ratchet wheel and is slidably installed in the rear foot 140 along the first axis. A third unlocking member 415 is slidably provided at the center position of the turntable 410 along the first axis. The third unlocking member 415 is used to unlock the third locking member 170.

[0100] A trigger member 230 is slidably installed in the seat cushion 210 along the first axis. A lock release member 300 that is in transmission cooperation with the trigger member 230 is provided on the backrest 220. Specifically, a transmission seat 240 is rotatably provided in the seat cushion 210. The transmission seat 240 and the trigger member 230 are cooperated through a guiding inclined surface. The transmission seat 240 and the lock release member 300 are remotely linked by a steel wire 310. The specific unlocking operation is as follows: operate the lock release member 300 to drive the transmission seat 240 to rotate, drive the trigger member 230 to slide through the guiding inclined surface, the trigger member 230 pushes the third unlocking member 415 to make it slide, and the third unlocking member 415 abuts against the third locking member 170 to release the restriction on the turntable 410, thereby allowing the seat pocket 200 to rotate relative to the vehicle frame 100 together with the unlocking device 400.

[0101] For the baby stroller of the present application, its folding and unfolding logic is different from the prior art, but it can still achieve the linkage folding of the whole vehicle. Especially during the unfolding operation, the vehicle frame is unfolded first and then locked in the unfolded state to prevent the vehicle frame from refolding, so as to improve the safety of the unfolding operation.

[0102] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification. When the technical features in different embodiments are embodied in the same drawing, it can be regarded that the drawing also discloses the combined examples of the various embodiments involved at the same time.

[0103] The above embodiments only express several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A foldable baby stroller, characterized in that: include: The frame adopts a foldable structure; A first locking member, used to lock the frame in an unfolded state; A seat pocket is mounted on the frame, and relative to the frame, the seat pocket has a use posture and a flip posture; An unlocking device is installed on the frame. When the seat pocket is switched from the use posture to the flip posture, the unlocking device has a trigger position that rotates with the seat pocket and acts on the first locking member to unlock the frame. After passing the trigger position, the unlocking device avoids the first locking member and allows the first locking member to reset, so that the first locking member can lock the frame in the unfolded state.

2. The foldable baby stroller according to claim 1, characterized in that: Relative to the first locking member, the unlocking device sequentially has an initial position, the trigger position and an avoidance position during the rotation process; In the initial position, the seat pocket is in a use posture relative to the frame; In the avoidance position, the seat pocket is in a flipped posture relative to the frame; Wherein, the first locking member is allowed to reset in both the initial position and the avoidance position.

3. The foldable baby stroller according to claim 2, characterized in that: The unlocking device comprises: A turntable is mounted on the frame and linked to the seat pocket, the outer periphery of the turntable is provided with an annular accommodation area, and when the unlocking device is in the initial position and the avoidance position, the first locking member is reset into the accommodation area; A shift block is installed on the rotating disk. When the unlocking device is in the triggering position, the shift block abuts against the first locking member to implement unlocking.

4. The foldable baby stroller according to claim 3, characterized in that: The shift block is movably mounted on the rotating disk, and has a first state of extending into the accommodating area and a second state of moving out of the accommodating area; An elastic member is installed on the rotating disk to make the shift block tend to the first state.

5. The foldable baby stroller according to claim 4, characterized in that: When the unlocking device moves from the initial position to the triggering position, the shifting block remains in the first state and correspondingly triggers the first locking member to unlock; When the unlocking device moves from the avoidance position toward the triggering position, the shifting block is switched to the second state by the action of the first locking member to avoid triggering the first locking member.

6. The foldable baby stroller according to claim 5, characterized in that: The rotating disk is provided with a mounting groove communicating with the accommodating area, and the shifting block is pivotally connected in the mounting groove; In the first state, at least a portion of the shift block extends from the mounting slot into the accommodating area; In the second state, the shift block is swung and received in the installation groove.

7. The foldable baby stroller according to claim 6, characterized in that: One side of the installation slot is a limiting slot wall, and the shift block abuts against the limiting slot wall in the first state to prevent rotation.

8. The foldable baby stroller according to claim 3, characterized in that: There are two symmetrically arranged shift blocks, and when the unlocking device is in the initial position, the first locking member is located between the two shift blocks; The unlocking device can rotate in both directions, and moves from an initial position to a corresponding triggering position in either rotation direction.

9. The foldable baby stroller according to claim 8, characterized in that: The accommodating area is divided into a first section and a second section by the two dial blocks; When the unlocking device is in the initial position, the first locking member is in the first section; When the unlocking device is in the avoidance position, the first locking member is in the second section.

10. The foldable baby stroller according to claim 1, characterized in that: The frame comprises: a first supporting member, wherein the first locking member is movably mounted on the first supporting member; The second support member is rotatably cooperated with the first support member around a first axis, and the second support member is provided with a first locking groove. The first locking member is placed in the first locking groove to lock the frame in the unfolded state. When unlocking, the first locking member moves out of the first locking groove and allows the second support member to rotate relative to the first support member. Relative to the first axis, the second support member has an avoidance area corresponding to the radial position of the first locking groove. After the second support member rotates, the avoidance area corresponds to the first locking member and allows the first locking member to be reset.

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