Baby carriage with folded seat to drive frame to be automatically folded

Abstract

The utility model belongs to the technical field of baby carriages, and particularly relates to a baby carriage with a folded seat to drive a frame to be automatically folded. Comprising a frame assembly, a seat assembly which is connected with the frame assembly, rotates relative to the frame assembly and can be folded, a locking and releasing assembly arranged on the frame assembly, and a first unlocking mechanism used for driving the locking and releasing assembly to unlock when the seat assembly rotates and is folded relative to the frame assembly. According to the baby carriage capable of driving the frame to be folded automatically by folding the seat, the first unlocking mechanism is arranged, so that when the seat assembly rotates and is folded relative to the frame assembly, the locking and unlocking assembly can be automatically driven to be unlocked, and the folding action of the seat assembly and the unlocking action of the frame assembly are conducted in a linkage mode; therefore, the seat assembly and the frame assembly do not need to be unlocked through key operation, the operation frequency of a user is reduced, the operation steps are simplified, and the use convenience of the user is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of baby strollers, and particularly relates to a stroller with a seat folding to drive the frame to be automatically folded. BACKGROUND

[0002] Baby strollers are common products in the growth process of babies. Common baby strollers can generally be unfolded or folded, and are folded in a folded state for storage or carrying. The baby strollers on the market currently all include a foldable frame and a seat assembly connected to the frame. When the baby stroller needs to be folded, the locking mechanism between the seat assembly and the frame is first unlocked, the seat assembly is rotated relative to the frame to fold onto the frame, and then the locking mechanism of the frame is operated to unlock and fold the frame. Therefore, two locking mechanisms need to be operated twice to unlock the entire baby stroller when the baby stroller is folded, which is relatively complicated. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problem that the seat assembly and the frame assembly need to be unlocked by key operation in the prior art, the present application provides a stroller with a seat folding to drive the frame to be automatically folded.

[0004] The present application is achieved by the following technical solutions:

[0005] A stroller with a seat folding to drive the frame to be automatically folded, comprising a frame assembly, a seat assembly connected to the frame assembly, rotatable relative to the frame assembly and foldable itself, a lock release assembly provided on the frame assembly, wherein the lock release assembly comprises a lock piece for limiting movement of the frame assembly between unfolding and folding, and a first unlocking mechanism for driving the lock release assembly to be unlocked when the seat assembly is rotated and folded relative to the frame assembly.

[0006] The stroller with a seat folding to drive the frame to be automatically folded as described above further comprises a lock release mechanism for limiting or releasing the rotation of the seat assembly relative to the frame assembly.

[0007] The stroller with a seat folding to drive the frame to be automatically folded as described above, the frame assembly comprises a front body member, a rear body member hinged to the front body member, and a handrail member hinged to the rear body member; the lock piece is used to limit folding of the front body member and the rear body member relative to the handrail member.

[0008] The front body member is provided with a first lock opening for the one end of the lock piece to be clamped into, and / or the rear body member is provided with a second lock opening for the other end of the lock piece to be clamped into.

[0009] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0010] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0011] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0012] When the frame unlocking lever rotates, the frame unlocking lever pushes the frame grain push block to release the locking of the frame assembly.

[0013] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0014] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0015] And / or;

[0016] When the frame and the seat are folded, the frame unlocking push block is misaligned or collapsed relative to the frame grain push block, so that the frame grain push block is reset; when the frame is unfolded, and the seat is still in the folded state, the lock is elastically extruded and engaged with the first lock port and / or the second lock port.

[0017] A stroller with seat folding driving frame automatic folding, the first unlocking mechanism includes seat back rotating seat connected with the seat assembly, adapter seat pop cover provided on the frame assembly, top block abutting with the adapter seat pop cover and being elastically extruded, and frame unlocking lever operating with the adapter seat pop cover, when the seat assembly is folded and the release mechanism releases the restriction of the seat assembly rotating relative to the frame assembly, the seat assembly pushes the top block to press down the adapter seat pop cover to drive the frame unlocking lever to rotate, drives the lock release assembly to unlock, so that the frame assembly can be folded.

[0018] Or, the first elastic member is provided between the frame unlocking lever and the frame assembly.

[0019] Or, a second elastic member is arranged between the frame unlocking push block and the frame unlocking lever.

[0020] Or, a third elastic member is arranged between the adapter cover and the frame assembly.

[0021] The child stroller as described above, wherein the first unlocking mechanism further comprises a push column arranged on the adapter cover, and a third inclined surface arranged on the frame unlocking lever and abutting against the push column.

[0022] Or, a first elastic member is arranged between the frame unlocking lever and the frame assembly.

[0023] Or, a second elastic member is arranged between the frame unlocking push block and the frame unlocking lever.

[0024] Or, a third elastic member is arranged between the adapter cover and the frame assembly.

[0025] The child stroller as described above, wherein the seat assembly and the frame assembly are respectively provided with a through hole corresponding to the top block.

[0026] When the seat is folded, the first inclined surface of the seat back rotating seat pushes the top block to top out of the through hole, so that the top block presses down the adapter cover.

[0027] The child stroller as described above, wherein the seat assembly is provided with a seat back rotating seat, the release mechanism comprises a rotating limiting block arranged on the frame assembly, an adapter rotating unlocking block having one end abutting against the rotating limiting block, the seat back rotating seat is provided with a gap slot for the rotating limiting block to be clamped into to limit the rotation of the seat assembly relative to the frame assembly, the seat back rotating seat is provided with a fourth inclined surface for the other end of the adapter rotating unlocking block to abut against, and a fourth elastic member is arranged between the rotating limiting block and the frame assembly.

[0028] The child stroller as described above, wherein the lock release assembly further comprises a release member for controlling the lock, and the release member is in abutting linkage with the frame clamping block push block of the first unlocking mechanism.

[0029] Or, the lock is in abutting linkage with the frame clamping block push block of the first unlocking mechanism.

[0030] The child stroller as described above, wherein when the seat assembly is folded, the fourth inclined surface pushes the adapter rotating unlocking block to make the rotating limiting block exit the gap slot.

[0031] The stroller with the seat folding driving the frame automatically folding as described above further comprises a second unlocking mechanism for directly driving the lock releasing assembly to be unlocked, wherein the second unlocking mechanism comprises an unlocking key protruding from the frame,

[0032] When the seat assembly is detached from the frame assembly, the operation of the unlocking key directly releases the locking of the frame assembly by the lock, or the operation of the unlocking key drives the first unlocking mechanism.

[0033] Compared with the prior art, the present application has the following advantages:

[0034] The stroller with the seat folding driving the frame automatically folding according to the present application is provided with the first unlocking mechanism, so that the lock releasing assembly can be automatically driven to be unlocked when the seat assembly is folded by rotating relative to the frame assembly, and the folding action of the seat assembly and the unlocking action of the frame assembly are linked to be performed, thereby eliminating the need for the user to separately operate the keys to unlock the seat assembly and the frame assembly, reducing the number of operations of the user, simplifying the operation steps, and improving the convenience of use of the user. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0036] Figure 1 is a three-dimensional view of the embodiment of the present application;

[0037] Figure 2 is an exploded view of the first unlocking mechanism in the embodiment of the present application; Figure 1 ;

[0038] Figure 3 is an exploded view of the first unlocking mechanism in the embodiment of the present application; Figure 2 ;

[0039] Figure 4 is a side view of Figure 1 ;

[0040] Figure 5 is a partial exploded view of the lock releasing assembly in the embodiment of the present application; Figure 1 ;

[0041] Figure 6 is a partial exploded view of the lock releasing assembly in the embodiment of the present application; Figure 2 ;

[0042] Figure 7 is a folding state diagram of the embodiment of the present applicationFigure 1 ;

[0043] Figure 8 is a folding state of the embodiment of the present application Figure 2 ;

[0044] Figure 9 is Figure 1 a schematic diagram of the internal structure of the joint;

[0045] Figure 10 is Figure 7 a schematic diagram of the internal structure of the joint;

[0046] Figure 11 is Figure 8 a schematic diagram of the internal structure of the joint.

DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0048] Please refer to Figures 1 to 11 , a stroller with seat folding driving frame automatic folding, comprising a frame assembly 1, a seat assembly 2 rotatably connected with the frame assembly 1, rotatable relative to the frame assembly 1 and foldable itself, a lock release assembly 3 provided on the frame assembly 1, wherein the lock release assembly 3 comprises a lock piece 331 for limiting the movement of the frame assembly 1 between unfolding and folding, and a first unlocking mechanism 4 for driving the lock release assembly 3 to be unlocked when the seat assembly 2 is folded by rotating relative to the frame assembly 1.

[0049] The stroller with seat folding driving frame automatic folding of the present application, by setting the first unlocking mechanism, can automatically drive the lock release assembly to be unlocked when the seat assembly is folded by rotating relative to the frame assembly, so that the folding action of the seat assembly and the unlocking action of the frame assembly are linked to be performed, thereby eliminating the need for separate key operation unlocking of the seat assembly and the frame assembly, reducing the number of user operations, simplifying the operation steps, and improving the convenience of user use.

[0050] Further, as a preferred embodiment of the present application but not limited, it further comprises a lock release mechanism 5 for limiting or releasing the rotation of the seat assembly 2 relative to the frame assembly 1.

[0051] In this embodiment, the arrangement of the release mechanism 5 can effectively limit or release the rotation of the seat assembly 2 relative to the frame assembly 1, thereby ensuring the stability between the seat assembly 2 and the frame assembly 1 when the stroller is unfolded for use, avoiding the impact on the safety in use caused by accidental rotation of the seat due to external force or misoperation; at the same time, when folding is needed, the release action of the release mechanism 5 can quickly release the restriction on the seat assembly 2, so that it can rotate smoothly relative to the frame assembly 1.

[0052] Further, as a preferred embodiment of the present scheme but not limited, the first unlocking mechanism 4 includes a seat back rotating seat 41 connected with the seat assembly 2, an adapter seat pop cover 42 provided on the frame assembly 1, a top block 43 abutting against the adapter seat pop cover 42, a frame unlocking lever 44 abutting against the adapter seat pop cover 42, and a frame unlocking push block 45 hinged with the frame unlocking lever 44, a frame locking grain push block 46 of the frame unlocking push block 45, the frame locking grain push block 46 abutting against the lock release assembly 3, the seat back rotating seat 41 being provided with a first inclined surface 411 for the rear end of the top block 43 to abut against, the adapter seat pop cover 42 being provided with a top push column 421 and a second inclined surface 422 for the front end of the top block 43 to abut against, the frame unlocking lever 44 being provided with a third inclined surface 441 for the top push column 421 to abut against, the frame unlocking lever 44 being provided with a first elastic member 442 between the frame unlocking lever 44 and the frame assembly 1, the frame unlocking push block 45 being provided with a second elastic member 451 between the frame unlocking push block 45 and the frame unlocking lever 44, and the adapter seat pop cover 42 being provided with a third elastic member 423 between the adapter seat pop cover 42 and the frame assembly 1.

[0053] In this embodiment, through the ingenious mechanical linkage design, the automatic association of the folding action of the seat assembly 2 and the unlocking action of the frame assembly 1 is realized, which significantly improves the convenience and efficiency of folding the stroller. When the seat assembly 2 starts to fold, the first inclined surface 411 pushes the top block 43 to abut against the second inclined surface 422, thereby pressing down the adapter seat pop cover 42, so that the top push column 421 thereon pushes the frame unlocking lever 44 to rotate along the third inclined surface 441. This rotating action is transmitted to the frame locking grain push block 46 through the hinged frame unlocking push block 45, and finally pushes the lock release assembly 3 to unlock, completing the folding preparation of the frame assembly 1. During the whole process, the arrangement of the first elastic member 442, the second elastic member 451 and the third elastic member 423 ensures the timely resetting of each component after unlocking, preparing for the next folding operation. The operation steps of the user are reduced, and the consistency and reliability of the folding action are improved through the mechanical linkage. At the same time, such linkage unlocking mechanism also makes it possible to design the overall structure of the stroller to be compact and lightweight, further improving the competitiveness and user experience of the product.

[0054] Further, as a preferred embodiment of the present application but not as a limitation, the seat assembly is provided with a seat back rotating seat, and the release mechanism 5 comprises a rotating limiting block 51 provided on the frame assembly 1, an adaptive seat rotating unlocking block 52 with a front end abutting against the rotating limiting block 51, the seat back rotating seat 41 is provided with a gap slot 412 for the rotating limiting block 51 to be clamped into to limit the rotation of the seat assembly 2 relative to the frame assembly 1, and the seat back rotating seat 41 is provided with a fourth inclined surface 413 for the rear end of the adaptive seat rotating unlocking block 52 to abut against, and a fourth elastic member is arranged between the rotating limiting block 51 and the frame assembly 1.

[0055] In the present embodiment, in the unfolded state, the rotating limiting block 51 is clamped into the gap slot 412 on the seat back rotating seat 41, effectively preventing accidental rotation of the seat assembly 2. When folding is needed, the fourth inclined surface 413 pushes the adaptive seat rotating unlocking block 52 to push the rotating limiting block 51 out of the gap slot 412, thereby releasing the rotation restriction of the seat assembly 2, so that it can be folded smoothly. The arrangement of the fourth elastic member ensures the timely resetting of the rotating limiting block 51 after unlocking, preparing for the next use. This design not only simplifies the folding operation, but also improves the stability of the stroller during use through mechanical limiting, avoiding potential safety hazards caused by accidental rotation of the seat assembly 2.

[0056] Further, as a preferred embodiment of the present application but not as a limitation, the frame assembly 1 comprises a front body member 11, a rear body member 12 hinged to the front body member 11, and an armrest member 13 hinged to the rear body member 12.

[0057] In the present embodiment, a three-section hinged structure of the front body member 11, the rear body member 12 and the armrest member 13 is adopted, which not only improves the folding convenience of the stroller, but also enhances the stability and flexibility of the structure. Specifically, the hinge between the front body member 11 and the rear body member 12 allows them to rotate relative to each other when folding, thereby significantly reducing the occupied space of the stroller, facilitating storage and carrying. The hinge between the armrest member 13 and the rear body member 12 further increases the folding flexibility, so that the entire frame assembly 1 can be folded more compactly together. This three-section structure also helps to distribute the force during use, improving the carrying capacity and durability of the stroller. In addition, the hinge design between the members also provides a basis for other possible embodiments, for example, by adjusting the position of the hinge point or adding additional support members, the mechanical properties of the frame assembly 1 can be optimized to adapt to different terrains or different use intensity requirements.

[0058] Further, as a preferred embodiment of the present scheme but not limited, the lock release assembly 3 comprises a pressing block 31 arranged on the frame assembly 1, a sliding block 32 arranged in the frame assembly 1 and abutting against the pressing block 31 along an inclined surface, a release member 33 arranged in the armrest member 13 and connected with the sliding block 32 through a steel wire rope, the release member 33 is provided with a lock piece 331 abutting against the frame clamping block 46 and used for limiting the folding of the front body member 11 and the rear body member 12 relative to the armrest member 13, the front body member 11 is provided with a first lock opening 111 for clamping one end of the lock piece 331, the rear body member 12 is provided with a second lock opening 121 for clamping the other end of the lock piece 331, and the sliding block 32 is provided with a fifth elastic member 321.

[0059] In the embodiment, the linkage design of the pressing block 31, the sliding block 32, the release member 33 and the lock piece 331 realizes effective locking and quick unlocking of the unfolded state of the frame assembly 1, and the working principle is that when the child stroller is in the unfolded state, the two ends of the lock piece 331 are clamped into the first lock opening 111 of the front body member 11 and the second lock opening 121 of the rear body member 12, thereby limiting the folding action of the front body member 11 and the rear body member 12 relative to the armrest member 13, and ensuring the stability of the frame; when folding is needed, the pressing block 31 is pressed, the inclined surface pushes the sliding block 32 to move, the sliding block 32 pulls the release member 33 through the steel wire rope, the lock piece 331 is pulled out of the first lock opening 111 and the second lock opening 121, the limitation on the frame is released, and at the same time the fifth elastic member 321 provides a reset force for the sliding block 32 after unlocking, so that the whole system can automatically restore the locking state when unfolded; this design not only improves the safety and operation convenience of the child stroller, but also reduces the operation steps of the user through mechanical linkage, avoiding the cumbersome process of manual unlocking multiple times in the traditional design.

[0060] Further, as a preferred embodiment of the present scheme but not limited, when the seat assembly 2 is folded, the first inclined surface 411 pushes the top block 43 to abut against the second inclined surface 422, and the fourth inclined surface 413 pushes the adapter seat rotation unlocking block 52 to exit the rotation limiting block 51 from the accommodation groove 412, the seat assembly 2 rotates and falls down under the action of gravity, and at the same time the top block 43 presses the adapter seat spring cover 42 to make the push column 421 push the frame unlocking lever 44 to rotate along the third inclined surface 441, driving the frame unlocking push block 45 to push the frame clamping block 46 to push the lock piece 331 out of the first lock opening 111 and the second lock opening 121 to complete the unlocking.

[0061] Further, as a preferred embodiment of the present solution but not limited, when the pressing block 31 is pressed down, the sliding block 32 is pushed to move closer to each other, thereby pulling the lock piece 331 of the release member 33 to move away from the first lock port 111 and the second lock port 121, to release the restriction of folding the front body member 11 and the rear body member 12 relative to the armrest member 13, while the fifth elastic member 321 is compressed under force, the sliding block 32 is reset to the initial position under the elastic force of the fifth elastic member 321, and the lock piece 331 is clamped into the first lock port 111 and the second lock port 121 to limit the folding of the front body member 11 and the rear body member 12 relative to the armrest member 13.

[0062] Further, as a preferred embodiment of the present solution but not limited, it further comprises a second unlocking mechanism 6 for directly driving the lock release assembly 3 to unlock, the second unlocking mechanism 6 comprises an unlocking key 61, and a boss 62 provided on the frame clamping block 46 and abutting against the unlocking key 61 along the inclined surface.

[0063] In this embodiment, a backup mode for directly driving the lock release assembly 3 to unlock is provided, which takes into account the situation after the seat is removed, so that the second unlocking mechanism 6 can be operated independently, further enhancing the flexibility and convenience of using the stroller. Specifically, the second unlocking mechanism 6 comprises an unlocking key 61 and a boss 62 provided on the frame clamping block 46. When the seat is removed, the user can still push the boss 62 by pressing the unlocking key 61, thereby driving the frame clamping block 46 to push the lock piece 331 in the lock release assembly 3 out of the first lock port 111 and the second lock port 121, completing the unlocking action. This design ensures that the user can still fold the frame assembly 1 even without the seat, which is convenient for storage or carrying. In addition, the provision of the second unlocking mechanism 6 also provides a basis for other possible embodiments, for example, by adjusting the cooperation between the unlocking key 61 and the boss 62, the force and speed of the unlocking action can be optimized to adapt to the operation habits of different users or the influence of different environmental conditions. At the same time, this second unlocking mechanism 6 that can be operated independently after the seat is removed reduces the risk that may be caused by the failure of a single unlocking mode or the inability to fold after the seat is removed.

[0064] Further, as a preferred embodiment of the present solution but not limited, the second inclined surface 422 comprises an abutting section 4221 and a pressing section 4222 protruding upward relative to the abutting section 4221, and the abutting section 4221 and the pressing section 4222 are connected by an inclined surface.

[0065] In this embodiment, when the top block 43 moves along the second inclined surface 422, the abutting section 4221 first provides a stable contact surface to ensure accurate transmission in the initial stage, and the pressing section 4222, due to the design of the relative protrusion, after the release mechanism is released from the restriction, the seat assembly falls down under the action of gravity, at this time the top block slides to the pressing section, thereby pushing the adapter seat pop-up cover 42 to press down and trigger the unlocking mechanism; this segmented design not only improves the transmission efficiency, but also avoids the jamming or impact caused by the sudden change through the slope transition, thereby enhancing the durability and user experience of the entire system.

[0066] In this embodiment, as shown in Figure 9 When the seat assembly 2 is unfolded, the vehicle frame unlocking push block 45 is hinged with the vehicle frame unlocking lever 44, and the vehicle frame locking block 46 is in abutment with the vehicle frame unlocking push block 45.

[0067] In this embodiment, as shown in Figure 10 When the seat assembly 2 starts to fold, the push column 421 pushes the vehicle frame unlocking lever 44 to rotate, and the rotation is transmitted to the vehicle frame locking block 46 through the hinged vehicle frame unlocking push block 45, and then the vehicle frame locking block 46 pushes the lock release assembly 3 to unlock, thereby completing the folding preparation of the vehicle frame assembly 1.

[0068] In this embodiment, as shown in Figure 11 After the vehicle frame assembly 1 completes the folding preparation, the vehicle frame unlocking lever 44 drives the vehicle frame unlocking push block 45 to push the vehicle frame locking block 46, and then the adapter seat pop-up cover 42 continues to drive the vehicle frame unlocking lever 44 to the position shown in the figure, so that the vehicle frame unlocking push block 45 rotates and collapses to allow the vehicle frame locking block 46 to reset.

[0069] The working principle of this embodiment is as follows:

[0070] The stroller of the present application is provided with a first unlocking mechanism, which can automatically drive the lock release assembly to unlock when the seat assembly is folded relative to the vehicle frame assembly, so that the folding action of the seat assembly and the unlocking action of the vehicle frame assembly are linked to operate, thereby eliminating the need for separate key operation to unlock the seat assembly and the vehicle frame assembly, reducing the number of user operations, simplifying the operation steps, and improving the convenience of user use.

[0071] The above is an embodiment provided in combination with specific content, and it is not intended that the specific implementation of the present application is limited to these descriptions. Any similar structure or method as the present application, or any technical deduction or replacement made on the basis of the concept of the present application, should be considered as the protection scope of the present application.

Claims

1. A stroller in which the seat folds down to automatically fold the frame, characterized in that, The utility model relates to a folding bicycle, comprising a frame assembly (1), a seat assembly (2) connected with the frame assembly (1) and rotatable relative to the frame assembly (1) and foldable, and a lock releasing assembly (3) arranged on the frame assembly (1), wherein the lock releasing assembly (3) comprises a lock piece (331) for limiting movement of the frame assembly (1) between unfolding and folding, and a first unlocking mechanism (4) for driving the lock releasing assembly (3) to be unlocked when the seat assembly (2) is folded by rotating relative to the frame assembly (1).

2. A stroller according to claim 1, wherein: The utility model further comprises a lock releasing mechanism (5) for limiting or releasing limitation of rotation of the seat assembly (2) relative to the frame assembly (1).

3. A stroller according to claim 2, wherein: The frame assembly (1) comprises a front body member (11), a rear body member (12) hinged to the front body member (11), and an armrest member (13) hinged to the rear body member (12); the lock piece (331) is used for limiting folding of the front body member (11) and the rear body member (12) relative to the armrest member (13). The front body member (11) is provided with a first lock opening (111) for clamping one end of the lock piece (331), and / or the rear body member (12) is provided with a second lock opening (121) for clamping the other end of the lock piece (331).

4. A stroller according to claim 3, wherein: The first unlocking mechanism (4) comprises a seat backrest rotating seat (41) connected with the seat assembly (2), an adapter seat spring cover (42) arranged on the frame assembly (1), a top block (43) in abutment with the adapter seat spring cover (42) and subjected to elastic extrusion, and a frame unlocking lever (44) in operating linkage with the adapter seat spring cover (42); when the seat assembly (2) is folded and the lock releasing mechanism (5) releases limitation of rotation of the seat assembly (2) relative to the frame assembly (1), the seat assembly (2) pushes the top block (43) to press down the adapter seat spring cover (42) to drive the frame unlocking lever (44) to rotate, drive the lock releasing assembly (3) to be unlocked, and enable the frame assembly (1) to be folded.

5. A stroller according to claim 4, wherein: The seat backrest rotating seat (41) is provided with a first inclined surface (411) for abutment of one end of the top block (43), the adapter seat spring cover (42) is provided with a second inclined surface (422) for abutment of the other end of the top block (43), and rotation of the first inclined surface (411) can push the top block (43) to abut against the second inclined surface (422) to move the top block (43).

6. A stroller according to claim 4 wherein: The first unlocking mechanism (4) further comprises a frame clamping particle pushing block (46) for driving the lock releasing assembly (3) to move and subjected to elastic biasing. When the frame unlocking lever (44) rotates, the frame unlocking lever (44) pushes the frame clamping particle pushing block (46) to release locking of the frame assembly (1).

7. A stroller according to claim 6 wherein: The first unlocking mechanism (4) further comprises A frame unlocking push block (45) movably connected with the frame unlocking lever (44), when the frame unlocking lever (44) rotates, the frame unlocking push block (45) drives the frame unlocking push block (46) to push, so as to release the locking of the frame assembly (1), and the frame assembly (1) is folded; And / or; When the frame and the seat are folded and in the folded state, the frame unlocking push block (45) is misaligned or collapsed relative to the frame locking block (46), so that the frame locking block (46) is reset; when the frame is unfolded and the seat is still in the folded state, the locking piece (331) is elastically pressed and engaged with the first lock opening (111) and / or the second lock opening (121).

8. A stroller according to claim 2 or 3 wherein: The first unlocking mechanism (4) further comprises A top block (43) movably arranged on the seat assembly (2), a frame unlocking lever (44) arranged on the frame assembly (1) and driven by the top block (43), a frame unlocking push block (45) movably connected with the frame unlocking lever (44), and a frame locking block (46) for driving the locking piece (331) to unlock and being elastically biased; when the seat assembly (2) rotates relative to the frame assembly (1), the top block (43) drives the frame unlocking lever (44) to rotate, so that the frame unlocking push block (45) drives the frame locking block (46) to push the locking piece (331) to move in the unlocking direction; when the frame and the seat are folded and in the folded state, the frame unlocking push block (45) is misaligned or collapsed relative to the frame locking block (46), so that the frame locking block (46) is reset and away from the locking piece (331).

9. The stroller of claim 7, wherein: The first unlocking mechanism (4) further comprises a pushing column (421) arranged on the adapter cover (42), and a third inclined surface (441) arranged on the frame unlocking lever (44) and abutting against the pushing column (421); Or, a first elastic member (442) is arranged between the frame unlocking lever (44) and the frame assembly (1); Or, a second elastic member (451) is arranged between the frame unlocking push block (45) and the frame unlocking lever (44); Or, a third elastic member (423) is arranged between the adapter cover (42) and the frame assembly (1).

10. The stroller of claim 4, wherein: The seat assembly (2) and the frame assembly (1) are respectively provided with a through hole corresponding to the top block (43); When the seat is folded, the first inclined surface (411) of the seat back rotating seat (41) pushes the top block (43) to be ejected from the through hole, so that the top block (43) presses down the adapter cover (42).

11. A stroller according to claim 2, wherein: The seat assembly (2) is provided with a seat backrest rotating seat (41), the release mechanism (5) comprises a rotating limiting block (51) provided on the frame assembly (1), an adaptive seat rotating unlocking block (52) with one end abutting against the rotating limiting block (51), the seat backrest rotating seat (41) is provided with a gap slot (412) for the rotating limiting block (51) to be clamped into to limit the rotation of the seat assembly (2) relative to the frame assembly (1), the seat backrest rotating seat (41) is provided with a fourth inclined surface (413) for the other end of the adaptive seat rotating unlocking block (52) to abut against, and a fourth elastic member is arranged between the rotating limiting block (51) and the frame assembly (1).

12. A stroller according to claim 6, wherein: The lock release assembly (3) further comprises a release member (33) for controlling the lock piece (331), and the release member (33) is in abutment linkage with the frame clamping particle pushing block (46) of the first unlocking mechanism (4). Alternatively, the lock piece (331) is in abutment linkage with the frame clamping particle pushing block (46) of the first unlocking mechanism (4).

13. The stroller of claim 11, wherein: When the seat assembly (2) is folded, the fourth inclined surface (413) pushes the adaptive seat rotating unlocking block (52) to make the rotating limiting block (51) exit the gap slot (412).

14. The stroller of claim 1, wherein: Further comprising a second unlocking mechanism (6) for directly driving the lock release assembly (3) to unlock, wherein the second unlocking mechanism (6) comprises an unlocking key (61) protruding from the frame; When the seat assembly (2) is detached from the frame assembly (1), the operation of the unlocking key (61) can directly release the locking of the lock piece (331) on the frame assembly (1), or the operation of the unlocking key (61) drives the first unlocking mechanism (4).

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