A stroller joint folding and unlocking component

Abstract

This application belongs to the field of stroller technology, specifically relating to a stroller joint folding and unlocking component. It includes a drive ring for mounting the seat assembly and a frame unlocking mechanism connecting the drive ring and the main frame. The drive ring rotates relative to the frame unlocking mechanism, causing the frame unlocking mechanism to unlock the main frame for folding. This application, by providing a drive ring for mounting the seat assembly and connecting it to the frame unlocking mechanism between the drive ring and the main frame, allows the rotation of the drive ring relative to the frame unlocking mechanism to directly drive the unlocking mechanism, thereby achieving automatic unlocking and folding of the frame. This structure utilizes the rotation of the seat assembly to drive the drive ring, eliminating the need for the user to operate the unlocking device separately. It synchronizes the seat folding action with the frame unlocking process, significantly improving the convenience and efficiency of stroller folding operations and reducing the difficulty of use.

Description

[Technical Field]

[0001] This application belongs to the field of children's vehicle technology, specifically relating to a children's vehicle joint folding and unlocking component. [Background Technology]

[0002] Existing strollers generally employ independent unlocking mechanisms to control frame folding. When users wish to fold the stroller, they typically need to manually operate buttons, levers, or sliders on the frame to release the locking mechanism. This method is difficult to operate and provides a poor user experience, especially when holding a child with one hand or needing to fold quickly. It also fails to effectively link the folding action of the seat or backrest to the frame folding and unlocking process. Therefore, there is an urgent need for a mechanism that synchronizes the folding action of the seat and backrest with the frame unlocking action, thereby simplifying the operation and improving the convenience and safety of the stroller folding process. [Utility Model Content]

[0003] To address the problem that the existing technology lacks a mechanism that can synchronize the folding action of components such as seats and backrests with the unlocking action of the frame, which leads to operational difficulties in certain special usage scenarios, this application provides a children's stroller joint folding and unlocking component.

[0004] This application is achieved through the following technical solution:

[0005] A folding and unlocking assembly for a stroller includes a drive ring for mounting a seat assembly and a frame unlocking mechanism connecting the drive ring and the frame body. The drive ring rotates relative to the frame unlocking mechanism, causing the frame unlocking mechanism to unlock the frame body for folding.

[0006] As described above, in a stroller joint folding and unlocking assembly, the drive ring has an inwardly protruding insertion platform.

[0007] As described above, a children's stroller joint folding and unlocking assembly includes a frame unlocking mechanism comprising a joint unlocking slider disposed on the frame body and a joint locking pin that engages obliquely with the joint unlocking slider. The drive ring is provided with a drive abutment for pushing the joint unlocking slider to slide away from the drive ring. The frame body is provided with a locking hole for the joint locking pin to be inserted into, and the joint locking pin is inserted into the locking hole to restrict the folding of the frame body.

[0008] As described above, in a children's stroller joint folding and unlocking assembly, the frame unlocking mechanism further includes a third elastic element disposed between the joint unlocking slider and the frame body. The joint unlocking slider is provided with a sliding groove for the joint locking pin to slide and engage, allowing the joint locking pin to insert into or retract from the locking hole. When the drive ring rotates, the drive abutment presses down on the joint unlocking slider, causing the joint locking pin to retract from the locking hole, thereby releasing the restriction on the frame body to fold. The third elastic element drives the joint unlocking slider to slide back to its original position, causing the joint locking pin to insert into the locking hole, thereby restricting the frame body from folding.

[0009] As described above, in a stroller joint folding and unlocking assembly, the joint unlocking slider is provided with a release groove for the joint locking pin to move relative to the joint unlocking slider and the lock hole.

[0010] As described above, in a stroller joint folding and unlocking assembly, the joint locking pin is provided with a pin that passes through both sides and through the sliding groove, and the sliding groove is set towards the locking hole in a direction away from the drive ring.

[0011] As described above, in a stroller joint folding and unlocking assembly, the driving abutment is disposed along the outer edge of the driving ring, the driving abutment has a first driving slope near the joint unlocking slider, and the joint unlocking slider has a second driving slope that cooperates with the first driving slope.

[0012] As described above, a children's stroller joint folding and unlocking assembly has an edge portion corresponding to the outer contour of the drive ring on the joint unlocking slider, and an abutment portion extending upward from the edge portion, with the second drive inclined surface disposed on the abutment portion.

[0013] As described above, a children's stroller joint folding and unlocking assembly includes a frame body comprising a connector, a rear leg assembly connected to the connector, a front leg assembly hinged to the connector, and a handlebar assembly, as well as a synchronization mechanism for folding the front leg assembly and the handlebar assembly together towards the rear leg assembly.

[0014] As described above, a folding and unlocking assembly for a children's stroller includes a synchronization mechanism comprising a connecting rod, a first connecting hole on the front leg assembly for inserting one end of the connecting rod, a second connecting hole on the handle assembly for inserting the other end of the connecting rod, and a first clearance groove on the connector corresponding to the displacement trajectory of the first connecting hole and a second clearance groove corresponding to the displacement trajectory of the second connecting hole. When the handle assembly moves towards the rear leg assembly, the connecting rod synchronously moves the front leg assembly towards the rear leg assembly; when the front leg assembly moves towards the rear leg assembly, the connecting rod synchronously moves the handle assembly towards the rear leg assembly.

[0015] Compared with the prior art, this application has the following advantages:

[0016] This application discloses a stroller joint folding and unlocking component. By providing a drive ring for mounting the seat assembly and connecting this drive ring to a frame unlocking mechanism between the stroller frame and the main frame, the rotation of the drive ring relative to the frame unlocking mechanism directly drives the unlocking mechanism, thereby achieving automatic unlocking and folding of the stroller frame. This structure utilizes the rotation of the seat assembly to drive the drive ring, eliminating the need for the user to operate the unlocking device separately. The seat folding action and the frame unlocking process are synchronized, significantly improving the convenience and efficiency of stroller folding operations and reducing the difficulty of use. It demonstrates stronger practicality and user-friendly design advantages, especially in scenarios requiring one-handed operation or quick storage. [Attached Image Description]

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional perspective view of an embodiment of this application;

[0019] Figure 2 yes Figure 1 Installation diagram;

[0020] Figure 3 It is a partial exploded view of the frame body. Figure 1 ;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 It is a partial exploded view of the frame body. Figure 2 ;

[0023] Figure 6 yes Figure 5 Enlarged view at point B;

[0024] Figure 7 This is a schematic diagram of the internal structure before unlocking in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram of the internal structure after unlocking in an embodiment of this application;

[0026] Figure 9 This is a schematic diagram of the internal structure of the synchronization mechanism in the embodiment of this application when it is deployed;

[0027] Figure 10 This is a schematic diagram of the internal structure of the synchronization mechanism during folding in an embodiment of this application.

Detailed Implementation Methods

[0028] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0029] Please see Figures 1 to 10 A folding and unlocking assembly for a children's stroller includes a drive ring 51 for mounting a seat assembly 2, and a frame unlocking mechanism 6 connecting the drive ring 51 and the frame body 1. The drive ring 51 rotates relative to the frame unlocking mechanism 6, causing the frame unlocking mechanism 6 to unlock the frame body 1 for folding.

[0030] This application discloses a stroller joint folding and unlocking component. By providing a drive ring for mounting the seat assembly and connecting this drive ring to a frame unlocking mechanism between the stroller frame and the main frame, the rotation of the drive ring relative to the frame unlocking mechanism directly drives the unlocking mechanism, thereby achieving automatic unlocking and folding of the stroller frame. This structure utilizes the rotation of the seat assembly to drive the drive ring, eliminating the need for the user to operate the unlocking device separately. The seat folding action and the frame unlocking process are synchronized, significantly improving the convenience and efficiency of stroller folding operations and reducing the difficulty of use. It demonstrates stronger practicality and user-friendly design advantages, especially in scenarios requiring one-handed operation or quick storage.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the drive ring 51 is provided with an inwardly protruding insertion platform 513.

[0032] In this embodiment, the drive ring 51 is provided with an inwardly protruding insertion platform 513. This insertion platform is used to connect with the corresponding structure of the seat assembly. When the seat assembly is rotated or folded, the insertion platform 513 serves as the drive interface of the drive ring, synchronously transmitting the movement of the seat assembly to the drive ring, thereby causing the drive ring to rotate relative to the frame unlocking mechanism, and thus realizing the linkage unlocking of the frame. By establishing a stable power transmission relationship between the seat and the drive ring through the insertion platform, no additional manual operation of the unlocking components is required, significantly simplifying the folding operation process and improving user convenience and safety.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the frame unlocking mechanism 6 includes a joint unlocking slider 61 disposed on the frame body 1, and a joint locking pin 62 that obliquely engages with the joint unlocking slider 61. The drive ring 51 is provided with a drive abutment 63 for pushing the joint unlocking slider 61 to slide away from the drive ring 51. The frame body 1 is provided with a locking hole 64 for the joint locking pin 62 to be inserted. The joint locking pin 62 is inserted into the locking hole 64 to restrict the folding of the frame body 1.

[0034] In this embodiment, the frame unlocking mechanism 6, through the joint unlocking slider 61 and the joint locking pin 62 wedge-fitting it on the frame body 1, and combined with the driving abutment 63 on the drive ring 51, constitutes a compact, precise, and highly interconnected unlocking and limiting mechanism. When the seat assembly 2 starts to rotate, the driving abutment 63 on the drive ring 51 will move synchronously and push the joint unlocking slider 61 to slide away from the drive ring 51. Since the sliding process is wedge-fitting with the joint locking pin 62, it will drive the joint locking pin 62 to move axially, thereby pulling it out of the locking hole 64 on the frame body 1, realizing the unlocking of the frame body 1 folding action. With the locking pin inserted into the lock hole, the frame can be firmly restricted from unfolding, ensuring structural stability. The frame cannot be folded directly without operating the seat, improving the overall safety and preventing accidental operation. When the seat assembly rotates to fold, the unlocking slider is driven by the drive ring, and the locking pin is unlocked through the wedge linkage. This process not only links the frame unlocking action with the seat action, but also avoids the problem of having to manually operate the frame locking pin separately in traditional structures. This greatly simplifies the operation process and improves efficiency and user experience.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the frame unlocking mechanism 6 further includes a third elastic element 65 disposed between the joint unlocking slider 61 and the frame body 1. The joint unlocking slider 61 is provided with a sliding groove 66 for the joint locking pin 62 to slide and engage, allowing the joint locking pin 62 to insert into or withdraw from the locking hole 64. When the drive ring 51 rotates, the drive abutment 63 presses down on the joint unlocking slider 61, causing the joint locking pin 62 to withdraw from the locking hole 64, thereby releasing the restriction on the frame body 1 to fold. The third elastic element 65 drives the joint unlocking slider 61 to slide back to its original position, causing the joint locking pin 62 to insert into the locking hole 64, thereby restricting the frame body 1 from folding.

[0036] In this embodiment, a linkage-type unlocking and locking structure with a self-resetting function is achieved by setting a third elastic element 65 between the joint unlocking slider 61 and the frame body 1, and forming a sliding groove 66 on the joint unlocking slider 61 for sliding engagement of the joint locking pin 62. When the seat assembly 2 rotates, the driving abutment 63 on the driving ring 51 simultaneously presses the joint unlocking slider 61 downward, causing the slider 61 to move along the sliding direction. The sliding groove 66 drives the joint locking pin 62, which is wedge-engaged with it, to slide axially, thereby causing the locking pin 62 to be pulled out of the lock hole 64 on the frame body 1, completing the unlocking operation of the frame in the unfolded state, making the frame body 1 possible to fold. When the seat assembly resets or no longer triggers the unlocking action, the third elastic element 65 will drive the joint unlocking slider 61 to slide back to its original position, thereby driving the locking pin 62 to re-insert into the lock hole 64, realizing the re-locking of the frame structure. In terms of operation, this structure enables the seat component rotation to trigger the frame unlocking action, allowing users to complete both unlocking steps with just one operation. This effectively improves the efficiency of the stroller folding process, reduces repetitive steps, and significantly enhances convenience. Secondly, the third elastic element 65 provides the structure with automatic reset capability, allowing the unlocking structure to automatically return to its original position and restore the locking function after operation without user intervention. This effectively avoids safety hazards such as structural loosening or accidental folding caused by forgetting to reset or improper operation.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the joint unlocking slider 61 is provided with a release groove 611 for the joint locking pin 62 to move relative to the joint unlocking slider 61 and the lock hole 64.

[0038] In this embodiment, the release groove 611 provides space for the joint locking pin 62 to move between the joint unlocking slider 61 and the lock hole 64. When the drive structure causes the joint unlocking slider 61 to move relative to the lock, the joint locking pin 62, guided by the release groove 611, disengages from its original locked state embedded in the lock hole 64, thereby unlocking the frame joint. By setting the release groove 611, controlled movement of the joint locking pin during the unlocking process is achieved, making the unlocking operation smoother and more stable, and effectively avoiding jamming, misoperation, and other phenomena.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the joint locking pin 62 is provided with a pin 621 that passes through both sides and through the sliding groove 66, and the sliding groove 66 is arranged to gradually approach the locking hole 64 in a direction away from the drive ring 51.

[0040] In this embodiment, the joint locking pin 62 is precisely guided within the sliding groove 66 by a pin 621 that passes through both sides and through the sliding groove 66. The sliding groove 66 is positioned to gradually approach the lock hole 64 in a direction away from the drive ring 51. The working principle is that when the drive ring moves the unlocking slider, the joint unlocking slider pushes the pin 621 along the sliding groove 66. Because the path of the sliding groove is designed to gradually approach the lock hole, the locking pin 62, under the guidance, achieves both lateral unlocking and longitudinal approaching of the lock hole, allowing it to smoothly engage or disengage from the lock hole 64, thus completing the locking or unlocking operation. Through the cooperation between the pin and the sliding groove, controllable guided movement of the locking pin is achieved, preventing deviation, jamming, or interference during unlocking or locking, ensuring reliable and smooth operation, and improving the overall mechanical stability and operational feel of the structure.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the driving abutment 63 is disposed along the outer edge of the driving ring 51, and a first driving inclined surface 67 is provided on the driving abutment 63 near the joint unlocking slider 61, and a second driving inclined surface 68 is provided on the joint unlocking slider 61 to cooperate with the first driving inclined surface 67.

[0042] In this embodiment, when the seat assembly 2 rotates, causing the drive ring 51 to rotate, the drive abutment 63 moves accordingly. Its first drive ramp 67 gradually slides into and presses against the second drive ramp 68 on the joint unlocking slider 61. Utilizing the relative sliding and contact pressure between the ramps, the circular motion of the drive ring is effectively converted into the axial sliding of the joint unlocking slider 61, thereby causing the joint locking pin 62 to disengage from the locking hole 64, achieving smooth unlocking of the frame body 1. This structure, on the one hand, forms an adaptive contact through ramp engagement, ensuring smooth transmission and possessing a certain degree of self-positioning and self-alignment, effectively mitigating meshing problems caused by component manufacturing errors or installation deviations, and improving the reliability and consistency of the structural transmission. On the other hand, the wedge structure has the mechanical advantage of amplifying force, achieving a larger pushing stroke with a smaller driving force, helping to reduce user operating force and improve operating feel and user comfort.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the joint unlocking slider 61 is provided with an edge portion 612 corresponding to the outer contour of the drive ring 51, and an abutment portion 613 extending upward from the edge portion 612, and the second drive inclined surface 68 is provided on the abutment portion 613.

[0044] In this embodiment, the joint unlocking slider 61 has an edge portion 612 that matches the outer contour of the drive ring 51, and an abutment portion 613 extends upward from this edge portion. The second driving inclined surface 68 is provided on the abutment portion 613. This structure allows the drive ring to be guided along the edge portion by its outer contour when rotating, and to generate an oblique contact thrust between the second driving inclined surface 68 and the abutment portion 613, thereby pushing the unlocking slider 61 to slide in a predetermined direction, realizing the synchronous unlocking of the joint locking pin. Its working principle is to use the oblique force generated by the drive ring rotating and the inclined surface on the abutment portion to convert the rotational power into the linear displacement of the unlocking slider, driving the slider to move precisely and complete the extraction or insertion operation of the locking pin. The rotational motion of the drive ring is efficiently converted into the linear motion of the unlocking slider through structural guidance, simplifying the transmission path, reducing the number of intermediate components, improving structural compactness and response efficiency, and especially enabling efficient and stable linkage unlocking operation in limited installation space.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the frame body 1 includes a connector 11, a rear leg assembly 12 connected to the connector 11, a front leg assembly 13 hinged to the connector 11 and a handlebar assembly 14, and a synchronization mechanism 15 for folding the front leg assembly 13 and the handlebar assembly 14 together towards the rear leg assembly 12.

[0046] In this embodiment, the front leg assembly 13 and the handlebar assembly 14 can simultaneously and collaboratively move towards the rear leg assembly 12 during the folding process, forming an integrated folding motion. When the user performs the folding operation, the synchronization mechanism 15 links the front leg assembly 13 and the handlebar assembly 14 through the mechanical transmission structure, so that the two move synchronously along the corresponding trajectory in the same amount of time, thereby achieving fast, simple, and symmetrical folding of the entire frame. This structure not only effectively improves folding efficiency and avoids the jamming, swaying, or chaotic operation caused by the individual movement of parts during the folding process of traditional children's vehicles, but also makes the frame shape more compact and regular after folding, which is convenient for storage and transportation, and improves the overall user experience and space utilization.

[0047] Furthermore, as a preferred embodiment of this solution and not a limitation, the synchronization mechanism 15 includes a connecting rod 151, a first connecting hole 152 on the front foot assembly 13 for inserting one end of the connecting rod 151, a second connecting hole 153 on the handle assembly 14 for inserting the other end of the connecting rod 151, and a first clearance groove 154 and a second clearance groove 155 on the connecting member 11 corresponding to the displacement trajectory of the first connecting hole 152 and the second clearance groove 155 corresponding to the displacement trajectory of the second connecting hole 153. The handle assembly 14 moves closer to the rear foot assembly 12, driving the connecting rod 151 to synchronously drive the front foot assembly 13 to move closer to the rear foot assembly 12; the front foot assembly 13 moves closer to the rear foot assembly 12, driving the connecting rod 151 to synchronously drive the handle assembly 14 to move closer to the rear foot assembly 12.

[0048] In this embodiment, a transmission connection is formed between the first connecting hole 152 and the second connecting hole 153 between the connecting rod 151 and the front foot assembly 13 and the handlebar assembly 14. A first clearance groove 154 and a second clearance groove 155 corresponding to the displacement trajectory of the two connecting holes are provided on the connector 11, thereby constructing a folding synchronization system with structural guidance function and bidirectional linkage capability. When the handlebar assembly 14 or the front foot assembly 13 moves towards the rear foot assembly 12, the transmission action of the connecting rod 151 can drive another component to move towards the rear foot assembly 12 synchronously, realizing bidirectional drive-type coordinated folding of the front foot assembly 13 and the handlebar assembly 14. This significantly improves the folding smoothness and consistency of the whole vehicle, avoiding the problems of disordered steps and jamming caused by the independent folding of multiple parts in the traditional structure. It allows the user to complete the folding action of the entire frame by pushing only one part, greatly improving the convenience and intelligence of operation. Meanwhile, the clearance slots 154 and 155 provide necessary spatial guidance for the connecting rod 151 during the folding motion, ensuring that the connecting rod maintains a reasonable movement path during the overall structural deformation process, avoiding deformation jamming caused by spatial interference or sliding offset, thereby improving the reliability of the structural movement.

[0049] The working principle of this embodiment is as follows:

[0050] This application discloses a stroller joint folding and unlocking component. By providing a drive ring for mounting the seat assembly and connecting this drive ring to a frame unlocking mechanism between the stroller frame and the main frame, the rotation of the drive ring relative to the frame unlocking mechanism directly drives the unlocking mechanism, thereby achieving automatic unlocking and folding of the stroller frame. This structure utilizes the rotation of the seat assembly to drive the drive ring, eliminating the need for the user to operate the unlocking device separately. The seat folding action and the frame unlocking process are synchronized, significantly improving the convenience and efficiency of stroller folding operations and reducing the difficulty of use. It demonstrates stronger practicality and user-friendly design advantages, especially in scenarios requiring one-handed operation or quick storage.

[0051] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A folding and unlocking assembly for a stroller, characterized in that, Includes a drive ring (51) for mounting the seat assembly (2), and a frame unlocking mechanism (6) connecting the drive ring (51) and the frame body (1). The drive ring (51) rotates relative to the frame unlocking mechanism (6) to drive the frame unlocking mechanism (6) to unlock the frame body (1) for folding.

2. The stroller joint folding and unlocking assembly according to claim 1, characterized in that, The drive ring (51) is provided with an inwardly protruding insertion platform (513).

3. The stroller joint folding and unlocking assembly according to claim 1, characterized in that, The frame unlocking mechanism (6) includes a joint unlocking slider (61) disposed on the frame body (1) and a joint locking pin (62) that cooperates obliquely with the joint unlocking slider (61). The drive ring (51) is provided with a drive abutment (63) for pushing the joint unlocking slider (61) to slide away from the drive ring (51). The frame body (1) is provided with a locking hole (64) for the joint locking pin (62) to be inserted. The joint locking pin (62) is inserted into the locking hole (64) to restrict the folding of the frame body (1).

4. A stroller joint folding and unlocking assembly according to claim 3, characterized in that, The frame unlocking mechanism (6) further includes a third elastic element (65) disposed between the joint unlocking slider (61) and the frame body (1). The joint unlocking slider (61) is provided with a sliding groove (66) for the joint locking pin (62) to slide and engage, allowing the joint locking pin (62) to insert or withdraw from the lock hole (64). When the drive ring (51) rotates, the drive abutment (63) presses down on the joint unlocking slider (61) to drive the joint locking pin (62) to withdraw from the lock hole (64), thereby releasing the restriction on the frame body (1) to fold. The third elastic element (65) drives the joint unlocking slider (61) to slide back to its original position, thereby driving the joint locking pin (62) to insert into the lock hole (64) to restrict the frame body (1) from folding.

5. A stroller joint folding and unlocking assembly according to claim 3, characterized in that, The joint unlocking slider (61) is provided with a release groove (611) for the joint locking pin (62) to move relative to the joint unlocking slider (61) and the lock hole (64).

6. A stroller joint folding and unlocking assembly according to claim 4, characterized in that, The joint locking pin (62) is provided with a pin (621) that passes through both sides and through the sliding groove (66), and the sliding groove (66) is set to gradually approach the lock hole (64) in a direction away from the drive ring (51).

7. A stroller joint folding and unlocking assembly according to claim 3, characterized in that, The driving abutment (63) is disposed along the outer edge of the driving ring (51). The driving abutment (63) has a first driving slope (67) at one end near the joint unlocking slider (61). The joint unlocking slider (61) has a second driving slope (68) that cooperates with the first driving slope (67).

8. A stroller joint folding and unlocking assembly according to claim 7, characterized in that, The joint unlocking slider (61) is provided with an edge portion (612) corresponding to the outer contour of the drive ring (51) and an abutment portion (613) extending upward from the edge portion (612), and the second drive inclined surface (68) is provided on the abutment portion (613).

9. A stroller joint folding and unlocking assembly according to claim 3, characterized in that, The frame body (1) includes a connector (11), a rear leg assembly (12) connected to the connector (11), a front leg assembly (13) hinged to the connector (11) and a handlebar assembly (14), and a synchronizing mechanism (15) for folding the front leg assembly (13) and the handlebar assembly (14) together towards the rear leg assembly (12).

10. A stroller joint folding and unlocking assembly according to claim 9, characterized in that, The synchronization mechanism (15) includes a connecting rod (151), a first connecting hole (152) on the front foot assembly (13) for inserting one end of the connecting rod (151), a second connecting hole (153) on the handle assembly (14) for inserting the other end of the connecting rod (151), a first clearance groove (154) on the connector (11) corresponding to the displacement trajectory of the first connecting hole (152), and a second clearance groove (155) corresponding to the displacement trajectory of the second connecting hole (153). The handle assembly (14) moves closer to the rear foot assembly (12), driving the connecting rod (151) to synchronously drive the front foot assembly (13) to move closer to the rear foot assembly (12); the front foot assembly (13) moves closer to the rear foot assembly (12), driving the connecting rod (151) to synchronously drive the handle assembly (14) to move closer to the rear foot assembly (12).

Images