Folding and locking system for baby carriage

Abstract

The utility model discloses a baby carriage folding and locking system which comprises a frame and a handle assembly, and the handle assembly comprises a base component arranged on the frame; an operating member movable relative to the base member; a locking mechanism is arranged on the frame, and the locking mechanism has a locking state and an unlocking state; a transmission assembly is arranged in the base part and is in linkage with the locking mechanism. When the operating part moves relative to the base part, the movement of the operating part is transmitted to the locking mechanism through the transmission assembly, so that the locking mechanism is switched from a locking state to an unlocking state, and at the moment, the handle assembly can rotate relative to the frame. According to the folding and locking system of the baby carriage, through linkage matching of the operating component, the base component, the transmission component and the locking mechanism, a user can control locking and unlocking between the handle component and the frame in an extremely simple and convenient operation mode, the use convenience and the operation efficiency are greatly improved, and the user experience is improved.

Description

A stroller folding locking system Technical Field

[0001] This utility model particularly relates to a folding locking system for children's strollers. Background Technology

[0002] Strollers, as a common means of transportation for children, typically consist of a handlebar assembly and a frame. The handlebar assembly is used for pushing and pulling the stroller, while the frame is the main supporting structure. The handlebar assembly generally comprises a base component and an operating component, with the base component connected to the frame. In existing stroller folding designs, to achieve the folding function, a locking mechanism is usually required to release the lock between the base component and the operating component, allowing the handlebar assembly to be adjusted to the designated position. Then, another separately designed locking mechanism releases the handlebar assembly from the frame. This design necessitates multiple independent locking systems to achieve folding and unfolding operations.

[0003] However, this existing design has significant limitations. First, the separate locking and unlocking steps increase operational complexity, requiring users to remember multiple operating sequences and repeat these steps each time the stroller is folded or unfolded. This cumbersome process not only easily confuses users but can also lead to operational errors, affecting the normal use of the stroller. Second, due to the lack of linkage, users need to operate each locking mechanism individually when folding or unfolding, which is not only time-consuming and laborious but may also result in insecure locking due to improper operation, thus affecting the stability and safety of the stroller.

[0004] Furthermore, multiple independent locking systems increase the design and manufacturing costs of the stroller, while also making its structure more complex and prone to failure. This complexity not only reduces the stroller's reliability and durability but also increases the difficulty of repair and maintenance. Users need to spend more time and effort maintaining and checking the condition of each locking component to ensure the stroller's safety. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a folding locking system for children's strollers.

[0006] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0007] A folding locking system for a stroller includes a frame and a handlebar assembly, the handlebar assembly comprising:

[0008] Base components mounted on the chassis;

[0009] Operating components that can move relative to the base components;

[0010] The frame is equipped with a locking mechanism, which has a locked state and an unlocked state;

[0011] The base component is equipped with a transmission assembly, which is linked to the locking mechanism.

[0012] When the operating component moves relative to the base component, the movement of the operating component is transmitted to the locking mechanism through the transmission component, causing the locking mechanism to switch from the locked state to the unlocked state. At this time, the handle assembly can rotate relative to the frame.

[0013] Preferably, the transmission assembly includes a rotating member rotatably mounted on the base component. The rotating member is linked to the locking mechanism via a traction cable. When the operating component moves relative to the base component, the operating component pushes the rotating member to rotate relative to the base component, so as to switch the locking mechanism to the unlocked state via the traction cable.

[0014] Preferably, the locking mechanism includes a latch slidably mounted on the base component and a slot provided on the frame. The latch and the slot engage to achieve locking. A return spring is provided between the latch and the base component. When the transmission component drives the latch to disengage from the slot, the return spring is compressed. When the force on the operating component is released, the return spring pushes the latch to automatically return to the slot.

[0015] Preferably, the base component includes two symmetrically arranged L-shaped tubes rotatably mounted on the frame. Each L-shaped tube has a sliding channel extending along its length. The operating component is a U-shaped operating rod with its two ends slidably inserted into the two sliding channels. When the operating component slides along the sliding channel, its two ends push the corresponding rotating parts to rotate and drive the locking mechanism to unlock through the traction cable.

[0016] Preferably, the end of the operating component is provided with a retractable limiting block, and a preload spring is provided between the limiting block and the operating component. The L-shaped rotating tube is provided with a limiting slot that cooperates with the limiting block. When the limiting block is pressed to compress the preload spring, the limiting block can be disengaged from the limiting slot. At this time, the operating component can move axially relative to the L-shaped rotating tube.

[0017] Preferably, the L-shaped rotating tube has a fixed shaft seat and a clearance notch communicating with it on its tube wall. The rotating component is rotatably installed inside the L-shaped rotating tube through the fixed shaft seat, and part of the rotating component is exposed outside the L-shaped rotating tube through the clearance notch. When the operating component moves, the rotating component rotates, which in turn drives the locking mechanism to operate through the traction cable.

[0018] Preferably, the end of the operating component is provided with a boss. When the operating component moves axially relative to the base component, the boss directly abuts against and pushes the rotating component to rotate around the fixed shaft.

[0019] Preferably, the traction cable is a steel wire rope.

[0020] The beneficial effects of this utility model are:

[0021] This utility model's folding locking system for children's strollers, through the coordinated operation of operating components, base components, transmission components, and locking mechanisms, allows users to control the locking and unlocking of the handle assembly and frame in an extremely simple manner, greatly improving ease of use and operational efficiency, and enhancing the user experience. It integrates functions that previously required multiple independent locking mechanisms into a single coordinated system. This integrated design not only optimizes the overall structure of the stroller but also reduces the number of components and potential mechanical failure points, lowering the design and manufacturing costs. Simultaneously, the simpler structural design improves the stroller's reliability and durability, reducing the difficulty of maintenance and upkeep caused by complex components. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0024] Figure 2 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0025] Figure 3 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0026] Figure 4 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0027] Figure 5 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0028] Figure 6 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0029] Figure 7 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0030] Figure 8 is a structural schematic diagram of a folding locking system for a children's stroller according to this application;

[0031] Figure 9 is a structural schematic diagram of a folding locking system for a children's stroller according to this application. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0033] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0034] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0035] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0036] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0037] As shown in Figures 1-9, the present invention provides a folding locking system for a children's stroller, comprising a frame 1 and a handle assembly 2.

[0038] The handlebar assembly 2 includes a base component 21 mounted on the frame 1 and an operating component 22 movable relative to the base component 21. The frame 1 is equipped with a locking mechanism 4, which has a locked state and an unlocked state. A transmission assembly 5 is housed within the base component 21, and the transmission assembly 5 is linked to the locking mechanism 4. When the operating component 22 moves relative to the base component 21, the movement of the operating component 22 is transmitted to the locking mechanism 4 via the transmission assembly 5, causing the locking mechanism 4 to switch from the locked state to the unlocked state. At this time, the handlebar assembly 2 can rotate relative to the frame 1.

[0039] The transmission assembly includes a rotating member 51 rotatably mounted on the base component 21. The rotating member 51 is linked to the locking mechanism 4 via a traction cable 52. When the operating member 22 moves relative to the base component 21, the operating member 22 pushes the rotating member 51 to rotate relative to the base component 21, so as to switch the locking mechanism 4 to the unlocked state via the traction cable 52.

[0040] The locking mechanism 4 includes a latch 41 slidably mounted on the base component 21 and a slot 42 provided on the frame 1. The latch 41 and the slot 42 cooperate to achieve locking. A return spring 43 is provided between the latch 41 and the base component 21. When the transmission component 5 drives the latch 41 to disengage from the slot 42, the return spring 43 is compressed, and the handlebar assembly 2 can rotate relative to the frame 1 to achieve folding. When the force on the latch 41 is released, the return spring 43 pushes the latch 41 to automatically return to the slot 42, and the locking mechanism 4 locks the handlebar assembly 2 and the frame 1, preventing the handlebar assembly 2 from rotating relative to the frame 1 to achieve folding.

[0041] The base component 21 includes two symmetrically arranged L-shaped tubes 211 rotatably mounted on the frame 1. Each L-shaped tube 211 has a sliding channel 213 extending along its length. The operating component 22 is a U-shaped operating lever with both ends slidably inserted into the two sliding channels 213. When the operating component 22 slides along the sliding channel 213, its two ends push the corresponding rotating component 51 to rotate, and the locking mechanism 4 is unlocked by the traction cable 52. As an embodiment 1, the traction cable 52 can be made of steel wire rope, which has high strength and durability.

[0042] The end of the operating component 22 is provided with a retractable limiting block 221, and a preload spring 222 is provided between the limiting block 221 and the operating component 22. The L-shaped rotating tube 211 is provided with a limiting slot 214 that cooperates with the limiting block 221. When the limiting block 221 is pressed to compress the preload spring 222, the limiting block 221 can be disengaged from the limiting slot 214. At this time, the operating component 22 can move axially relative to the L-shaped rotating tube 211.

[0043] The L-shaped rotating tube 211 has a fixed bearing 215 and a clearance notch 217 communicating with it on its tube wall. The rotating component 51 is rotatably mounted inside the L-shaped rotating tube 211 through the fixed bearing 215, and part of the rotating component 51 is exposed outside the L-shaped rotating tube 211 through the clearance notch 217. When the operating component 22 moves, it causes the rotating component 51 to rotate, which in turn drives the locking mechanism 4 to operate through the traction cable 52.

[0044] The end of the operating component 22 is provided with a boss 223. When the operating component 22 moves axially relative to the base component 21, the boss 223 directly abuts against and pushes the rotating component 51 to rotate around the fixed shaft seat 215.

[0045] Working principle:

[0046] When the stroller needs to be folded, press the limiting block 221 at the end of the operating component 22 to compress the preload spring 222 and disengage it from the limiting slot 214. At this time, the operating component 22 can move axially along the sliding channel 213. When the operating component 22 slides inward, the boss 223 at its end abuts against and pushes the rotating component 51 to rotate around the fixed shaft seat 215 (as shown in Figure 9). The rotation of the rotating component 51 drives the latch 41 to move outward against the elastic force of the return spring 43 through the traction cable 52, causing the latch 41 to disengage from the slot 42 on the frame 1, thereby releasing the locking state between the handle assembly 2 and the frame 1. At this time, the handle assembly 2 can rotate relative to the frame 1, realizing the folding operation of the stroller.

[0047] When the stroller needs to be unfolded, pull the operating component 22 to restore it to its original position relative to the base component 21, that is, the boss 223 moves away from the rotating component 51 (as shown in Figure 4), and the rotating component 51 (which can be reset under gravity or by a torsion spring installed on the fixed shaft seat 215) is reset. Then, rotate the handle assembly 2 to the initial position, and under the elastic force of the return spring 43, the latch 41 automatically resets into the slot 42, thereby locking the handle assembly 2 and the frame 1 again and ensuring the stability of the stroller during use.

[0048] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A folding locking system for a children's stroller, comprising a frame (1) and a handle assembly (2), characterized in that: The handle assembly (2) includes: a base component (21) disposed on the frame (1); an operating component (22) movable relative to the base component (21); a locking mechanism (4) disposed on the frame (1), the locking mechanism (4) having a locked state and an unlocked state; a transmission component (5) disposed inside the base component (21), the transmission component (5) being linked with the locking mechanism (4); when the operating component (22) moves relative to the base component (21), the movement of the operating component (22) is transmitted to the locking mechanism (4) through the transmission component (5), causing the locking mechanism (4) to switch from the locked state to the unlocked state, at which time the handle assembly (2) can rotate relative to the frame (1); the transmission component (5) includes a rotating component (51) rotatably disposed on the base component (21), the rotating component (51) being connected by a traction cable (52) When the locking mechanism (4) is linked, the operating component (22) moves relative to the base component (21), the operating component (22) pushes the rotating component (51) to rotate relative to the base component (21) so as to switch the locking mechanism (4) to the unlocked state through the traction cable (52). The locking mechanism (4) includes a latch (41) slidably mounted on the base component (21) and a slot (42) provided on the frame (1). The latch (41) and the slot (42) engage to achieve locking. A return spring (43) is provided between the latch (41) and the base component (21). When the transmission component (5) drives the latch (41) to disengage from the slot (42), the return spring (43) is compressed. When the force on the operating component (22) is released, the return spring (43) pushes the latch (41) to automatically return to the slot (42).

2. The stroller folding locking system according to claim 1, characterized in that, The base component (21) includes two symmetrically arranged L-shaped tubes (211) rotatably mounted on the frame (1). Each L-shaped tube (211) has a sliding channel (213) extending along its length. The operating component (22) is a U-shaped operating rod with its two ends slidably inserted into the two sliding channels (213). When the operating component (22) slides along the sliding channel (213), its two ends push the corresponding rotating component (51) to rotate and drive the locking mechanism (4) to unlock through the traction cable (52).

3. The stroller folding locking system according to claim 2, characterized in that, The end of the operating component (22) is provided with a retractable limiting block (221). A preload spring (222) is provided between the limiting block (221) and the operating component (22). The L-shaped rotating tube (211) is provided with a limiting slot (214) that cooperates with the limiting block (221). When the limiting block (221) is pressed to compress the preload spring (222), the limiting block (221) can be disengaged from the limiting slot (214). At this time, the operating component (22) can move axially relative to the L-shaped rotating tube (211).

4. A folding locking system for a stroller according to claim 2, characterized in that, The L-shaped tube (211) has a fixed shaft seat (215) and a clearance notch (217) connected to it. The rotating part (51) is rotatably installed inside the L-shaped tube (211) through the fixed shaft seat (215), and part of the rotating part (51) is exposed outside the L-shaped tube (211) through the clearance notch (217). When the operating component (22) moves, the rotating part (51) rotates, and then the locking mechanism (4) is driven to move through the traction cable (52).

5. A folding locking system for a stroller according to claim 1, characterized in that, The end of the operating component (22) is provided with a boss (223). When the operating component (22) moves axially relative to the base component (21), the boss (223) directly abuts against and pushes the rotating component (51) to rotate around the fixed shaft seat (215).

6. A folding locking system for a stroller according to claim 2, characterized in that, The traction cable (52) is a steel wire rope.

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