Joint unlocking mechanism for a stroller

Abstract

The application belongs to the technical field of baby strollers, and particularly relates to a joint unlocking mechanism of a baby stroller. The joint unlocking mechanism comprises a joint unlocking slider arranged on a main body of a stroller frame, and a joint locking pin matched with the joint unlocking slider. The main body of the stroller frame is provided with a locking hole for inserting the joint locking pin. The joint unlocking slider is pressed downward to drive the joint locking pin to be inserted into the locking hole to limit the folding of the main body of the stroller frame. The joint unlocking slider is pressed downward to drive the joint locking pin to be inserted into the locking hole to realize the locking or unlocking of the stroller frame. Compared with the traditional method of relying on independent unlocking components such as a button or a pull rod, the structure can realize linkage control in combination with the folding action of components such as a seat and a backrest, so that the user does not need to additionally operate the unlocking mechanism when folding the baby stroller, thereby significantly simplifying the operation steps and improving the continuity and efficiency of the folding process.

Description

Technical Field

[0001] This application belongs to the field of children's vehicle technology, specifically relating to a children's vehicle joint unlocking mechanism. 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 joint unlocking mechanism for children's strollers.

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

[0005] A children's stroller joint unlocking mechanism includes a joint unlocking slider disposed on the main body of the frame and a joint locking pin that cooperates with the joint unlocking slider. The main body of the frame is provided with a locking hole for the joint locking pin to be inserted. The joint unlocking slider is pressed down to drive the joint locking pin to be inserted into the locking hole to restrict the folding of the main body of the frame.

[0006] The children's stroller joint unlocking mechanism described above 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 withdraw from the locking hole. When the joint unlocking slider is pressed down, it causes the joint locking pin to withdraw 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.

[0007] As described above, in a stroller joint unlocking mechanism, 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.

[0008] As described above, in a stroller joint unlocking mechanism, the joint locking pin is provided with a pin that passes through both sides and through the sliding groove, and the sliding groove is arranged from top to bottom, gradually approaching the lock hole.

[0009] As described above, a children's stroller joint unlocking mechanism has an edge portion on the joint unlocking slider and an abutment portion extending upward from the edge portion.

[0010] As described above, a children's stroller joint unlocking mechanism has a second driving ramp on the abutment portion.

[0011] As described above, a children's stroller joint unlocking mechanism 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.

[0012] As described above, a children's stroller joint unlocking mechanism includes a linkage, a first connecting hole on the front leg assembly for inserting one end of the linkage, a second connecting hole on the handlebar assembly for inserting the other end of the linkage, 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 handlebar assembly moves towards the rear leg assembly, the linkage synchronously drives the front leg assembly towards the rear leg assembly; when the front leg assembly moves towards the rear leg assembly, the linkage synchronously drives the handlebar assembly towards the rear leg assembly.

[0013] Compared with the prior art, this application has the following advantages:

[0014] This application discloses a stroller joint unlocking mechanism that uses the downward pressing action of the joint unlocking slider to drive the locking pin into the lock hole to lock or unlock the stroller frame. Compared with the traditional method that relies on independent unlocking components such as buttons or levers, this structure can be linked to the folding action of components such as the seat and backrest to achieve linkage control. This allows users to fold the stroller without having to operate the unlocking mechanism separately, thus significantly simplifying the operation steps, improving the continuity and efficiency of the folding process, and is particularly suitable for actual use scenarios where one hand is holding a child or where quick folding is required. This improves the user experience and enhances safety during use. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a three-dimensional perspective view of an embodiment of this application;

[0017] Figure 2This is a schematic diagram of assembly and disassembly of an embodiment of this application. Figure 1 ;

[0018] Figure 3 yes Figure 2 Enlarged view at point A in the middle;

[0019] Figure 4 This is a schematic diagram of assembly and disassembly of an embodiment of this application. Figure 2 ;

[0020] Figure 5 yes Figure 4 Enlarged view at point B;

[0021] Figure 6 This is a schematic diagram of the internal structure before unlocking in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the internal structure after unlocking in an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the internal structure of the synchronization mechanism in the embodiment of this application when it is deployed;

[0024] Figure 9 This is a schematic diagram of the internal structure of the synchronization mechanism during folding in an embodiment of this application. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 9 A children's stroller joint unlocking mechanism 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 frame body 1 is provided with a locking hole 64 for the joint locking pin 62 to be inserted. The joint unlocking slider 61 is pressed down to drive the joint locking pin 62 to be inserted into the locking hole 64 to restrict the folding of the frame body 1.

[0027] This application discloses a stroller joint unlocking mechanism that uses the downward pressing action of the joint unlocking slider to drive the locking pin into the lock hole to lock or unlock the stroller frame. Compared with the traditional method that relies on independent unlocking components such as buttons or levers, this structure can be linked to the folding action of components such as the seat and backrest to achieve linkage control. This allows users to fold the stroller without having to operate the unlocking mechanism separately, thus significantly simplifying the operation steps, improving the continuity and efficiency of the folding process, and is particularly suitable for actual use scenarios where one hand is holding a child or where quick folding is required. This improves the user experience and enhances safety during use.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a third elastic member 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 joint unlocking slider 61 is pressed down, it causes 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 member 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.

[0029] In this embodiment, a linkage-type unlocking and locking structure with a self-resetting function is realized 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 the joint locking pin 62 to slide and engage. When the joint unlocking slider 61 moves along the sliding direction, it drives the joint locking pin 62, which is engaged with its wedge, to slide axially through the sliding groove 66, thereby causing the locking pin 62 to be pulled out of the locking hole 64 on the frame body 1, completing the unlocking operation of the frame in the unfolded state, and making the frame body 1 possible to fold. 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 locking 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.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the joint unlocking slider 61 is provided with an release groove 611 for the joint locking pin 62 to move relative to the joint unlocking slider 61 and the lock hole 64.

[0031] 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.

[0032] 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 from top to bottom, gradually approaching the locking hole 64.

[0033] 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. When the drive ring moves the unlocking slider, the joint unlocking slider pushes the pin 621 along the sliding groove 66. Since the path of the sliding groove is designed to gradually approach the keyhole, the locking pin 62 moves towards the keyhole under the guidance, allowing it to smoothly engage or disengage from the keyhole 64, thereby completing the locking or unlocking operation. Through the cooperation between the pin and the sliding groove, the controllable guided movement of the locking pin is achieved, avoiding deviation, jamming, or interference during unlocking or locking, ensuring reliable and smooth operation, and improving the mechanical stability and operating feel of the overall structure.

[0034] 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 and an abutment portion 613 extending upward from the edge portion 612.

[0035] 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. Guided by its outer contour along the edge portion, when applied in a stroller structure, Fang Baini pushes the unlocking slider 61 to slide in a predetermined direction, realizing the synchronous unlocking of the joint locking pin. Rotational power can be converted into linear displacement of the unlocking slider, driving the slider to move precisely and complete the extraction or insertion of the locking pin. This simplifies the transmission path, reduces the number of intermediate components, improves structural compactness and response efficiency, and especially enables efficient and stable linkage unlocking operations within limited installation space.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the abutment portion 613 is provided with a second driving ramp 68.

[0037] In this embodiment, the adaptive contact formed by the inclined plane not only ensures smooth transmission but also has a certain self-positioning and self-aligning function. This can effectively alleviate the meshing problems caused by component manufacturing errors or installation deviations, and improve the reliability and consistency of the structural transmission. On the other hand, the inclined wedge structure has the mechanical advantage of amplifying force, which can achieve a large pushing stroke with a small driving force, which helps to reduce the user's operating force and improve the operating feel and user comfort.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The working principle of this embodiment is as follows:

[0043] This application discloses a stroller joint unlocking mechanism that uses the downward pressing action of the joint unlocking slider to drive the locking pin into the lock hole to lock or unlock the stroller frame. Compared with the traditional method that relies on independent unlocking components such as buttons or levers, this structure can be linked to the folding action of components such as the seat and backrest to achieve linkage control. This allows users to fold the stroller without having to operate the unlocking mechanism separately, thus significantly simplifying the operation steps, improving the continuity and efficiency of the folding process, and is particularly suitable for actual use scenarios where one hand is holding a child or where quick folding is required. This improves the user experience and enhances safety during use.

[0044] 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 stroller joint unlocking mechanism, characterized in that, The frame includes a joint unlocking slider (61) on the frame body (1) and a joint locking pin (62) that engages with the joint unlocking slider (61). The frame body (1) has a locking hole (64) for the joint locking pin (62) to be inserted. The joint unlocking slider (61) is pressed down to drive the joint locking pin (62) to be inserted into the locking hole (64) to restrict the folding of the frame body (1).

2. A stroller joint unlocking mechanism according to claim 1, wherein, It also 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, so that the joint locking pin (62) can be inserted into or withdrawn from the lock hole (64). When the joint unlocking slider (61) is pressed down, it causes the joint locking pin (62) to withdraw from the lock hole (64) to release 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 be inserted into the lock hole (64) to restrict the frame body (1) from folding.

3. A stroller joint unlocking mechanism according to claim 1, wherein 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).

4. A stroller joint unlocking mechanism according to claim 2, wherein 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 provided from top to bottom to gradually approach the lock hole (64).

5. A stroller joint unlocking mechanism according to claim 1, wherein, The joint unlocking slider (61) has an edge portion (612) and an abutment portion (613) extending upward from the edge portion (612).

6. A stroller joint unlocking mechanism according to claim 5, wherein, The abutment portion (613) is provided with a second driving ramp (68).

7. A stroller joint unlocking mechanism according to claim 1, wherein 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).

8. A stroller joint unlocking mechanism according to claim 7, wherein, 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).

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