Folding baby carriage based on mortise and tenon linkage locking

Abstract

The utility model discloses a folding baby carriage based on mortise and tenon linkage locking. The folding baby carriage comprises a frame, a rear support, a front support and a connecting rod. The handle assembly comprises a base part and an operation part, and the base part is connected with the frame through a mortise and tenon linkage mechanism; wherein the mortise and tenon linkage mechanism has the following characteristics: in a locking state, the base part is fixedly connected with the frame; the unlocking state is triggered through preset movement of the operation part relative to the base part; when the mortise and tenon linkage mechanism is in an unlocking state, the handle assembly can rotate and be folded around the stroller frame, and meanwhile the front support drives the connecting rod to rotate and be folded around the rear support so as to achieve overall folding of the baby stroller. Through the unique design of the mortise and tenon linkage mechanism, unlocking can be triggered only through the preset movement of a simple operation part, the functions which can be completed through a plurality of independent locking mechanisms originally are integrated into one linkage system, the integrated design not only optimizes the overall structure of the baby carriage, but also improves the safety of the baby carriage. And the number of parts and mechanical fault points are reduced, and the design and manufacturing cost of the baby carriage is reduced.

Description

Technical Field

[0001] This utility model particularly relates to a folding stroller based on a latch-lock mechanism. 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. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a folding stroller based on a latching interlocking mechanism.

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

[0007] A folding stroller based on a latching interlocking mechanism includes:

[0008] Frame;

[0009] The rear support bracket is fixedly connected to the frame and has the rear wheel assembly installed on it.

[0010] A front bracket is rotatably connected to a rear bracket and has a front wheel assembly installed thereon; a connecting rod is rotatably provided between the rear bracket and the front bracket.

[0011] The handlebar assembly includes a base component and an operating component, wherein the base component is connected to the frame via a latch linkage mechanism;

[0012] The latch linkage mechanism has the following features:

[0013] Locked state: Keeps the base component firmly connected to the frame;

[0014] Unlocked state: Triggered by a preset movement of the operating component relative to the base component;

[0015] When the latch linkage mechanism is in the unlocked state, the handle assembly can be rotated and folded around the frame, and at the same time the front bracket drives the connecting rod to rotate and fold around the rear bracket to achieve the overall folding of the stroller.

[0016] Preferably, the latch linkage mechanism includes a transmission component disposed in the base component and a locking mechanism disposed on the frame. The transmission component is linked with the locking mechanism. 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 a locked state to an unlocked state. At this time, the handle assembly can rotate relative to the frame.

[0017] 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.

[0018] 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 latch is released, the return spring pushes the latch to automatically return to the slot.

[0019] 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.

[0020] Preferably, the end of the operating component is provided with a boss, and when the operating component moves axially relative to the base component, the boss directly abuts against and pushes the rotating component to rotate.

[0021] Preferably, the operating component is provided with a button linkage mechanism, the button linkage mechanism comprising:

[0022] The buttons are located on the operating components;

[0023] A rotating block is rotatably mounted on the operating component;

[0024] A flexible connector, one end of which is connected to a rotating block, and the other end of which is connected to a boss;

[0025] The first elastic reset element is disposed between the boss and the base component;

[0026] Wherein: when the button is pressed, the rotating block rotates and pulls the flexible connector, so that the boss overcomes the elastic force of the first elastic reset element and moves upward and disengages from the rotating part;

[0027] When the button is released, the first elastic reset element returns to its original shape, pushes the boss down, and causes the boss to abut against and push the rotating part to rotate, thereby switching the locking mechanism to the unlocked state.

[0028] Preferably, the base component is provided with a guide groove, the boss is slidably disposed in the guide groove, and the upper and lower end faces of the guide groove are respectively formed with limiting stops to limit the movement stroke of the boss.

[0029] Preferably, the base component is provided with a positioning post, the button is provided with a limiting groove, and a second elastic reset element is provided between the button and the base component. When the button is pressed and the positioning post is limited in the limiting groove, the second elastic reset element is compressed, and the button is pressed to push the rotating block to rotate. When the button is pressed and the positioning post is dislodged from the limiting groove, the button is released from the rotating block.

[0030] Preferably, the traction cable and the flexible connector are steel wire ropes.

[0031] The beneficial effects of this utility model are:

[0032] This application discloses a folding stroller based on a latching linkage locking mechanism, comprising: a frame, a rear support, a front support, and a connecting rod; a handle assembly including a base component and an operating component, the base component being connected to the frame via a latching linkage mechanism; wherein, the latching linkage mechanism has: a locked state: maintaining a fixed connection between the base component and the frame; and an unlocked state: triggered by a preset movement of the operating component relative to the base component; when the latching linkage mechanism is in the unlocked state, the handle assembly can rotate and fold around the frame, while the front support drives the connecting rod to rotate and fold around the rear support to achieve overall folding of the stroller. This utility model, through the unique design of the latching linkage mechanism, requires only a simple preset movement of the operating component to trigger unlocking, integrating functions that originally required multiple independent locking mechanisms into a single linkage system. This integrated design not only optimizes the overall structure of the stroller but also reduces the number of components and mechanical failure points, lowering the design and manufacturing costs of the stroller. Attached Figure Description

[0033] 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:

[0034] Figure 1 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 3 ;

[0037] Figure 4 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 4 ;

[0038] Figure 5 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 5 ;

[0039] Figure 6 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 6 ;

[0040] Figure 7 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 7 ;

[0041] Figure 8This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 8 ;

[0042] Figure 9 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 9 ;

[0043] Figure 10 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 10 ;

[0044] Figure 11 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 10 one;

[0045] Figure 12 This is a schematic diagram of the structure of a folding stroller based on a latch-lock mechanism, as described in this application. Figure 10 two. Detailed Implementation

[0046] The embodiments of the present invention 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] A folding stroller based on a latching interlocking mechanism includes:

[0052] Frame 1;

[0053] The rear bracket 1-1 is fixedly connected to the frame 1 and has the rear wheel assembly installed on it;

[0054] The front bracket 1-2 is rotatably connected to the rear bracket 1-1 and is equipped with a front wheel assembly. A connecting rod 1-3 is rotatably arranged between the rear bracket 1-1 and the front bracket 1-2.

[0055] The handle assembly 2 includes a base component 21 and an operating component 22, wherein the base component 21 is connected to the frame 1 via a latch linkage mechanism;

[0056] The latch linkage mechanism has the following features:

[0057] Locked state: Keeps the base component 21 fixedly connected to the frame 1;

[0058] Unlocked state: triggered by a preset movement of the operating component 22 relative to the base component 21;

[0059] When the latch linkage mechanism is in the unlocked state, the handle assembly 2 can rotate and fold around the frame 1, and at the same time, the front bracket 1-2 drives the connecting rod 1-3 to rotate and fold around the rear bracket 1-1 to achieve the overall folding of the stroller.

[0060] Furthermore, the latch linkage mechanism includes a transmission component 5 disposed in the base component 21 and a locking mechanism 4 disposed on the frame 1. The transmission component 5 is 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 this time, the handle assembly 2 can rotate relative to the frame 1.

[0061] Furthermore, the transmission assembly 5 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 component 22 moves relative to the base component 21, the operating component 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.

[0062] Furthermore, the locking mechanism 4 includes a latch 41 slidably mounted on the base component 21 and a latch 42 provided on the frame 1. The latch 41 and the latch 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 latch 42, the return spring 43 is compressed. When the force on the latch 41 is released, the return spring 43 pushes the latch 41 to automatically return to the latch 42.

[0063] Furthermore, 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.

[0064] Furthermore, 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.

[0065] Furthermore, the operating component 22 is provided with a button linkage mechanism, the button linkage mechanism including:

[0066] Button 61 is set on the operating component 22;

[0067] Rotating block 611 is rotatably mounted on operating component 22;

[0068] The flexible connector 62 is connected to the rotating block 611 at one end and to the boss 223 at the other end.

[0069] The first elastic reset element 63 is disposed between the boss 223 and the base component 21;

[0070] When button 61 is pressed, rotating block 611 rotates and pulls flexible connector 62, causing boss 223 to overcome the elastic force of first elastic reset element 63 and move upward and disengage from rotating component 51.

[0071] When button 61 is released, the first elastic reset element 63 resumes its deformation, pushes the boss 223 downward, so that the boss 223 abuts against and pushes the rotating part 51 to rotate, thereby switching the locking mechanism 4 to the unlocked state.

[0072] Furthermore, the base component 21 is provided with a guide groove 212, and the boss 223 is slidably disposed in the guide groove 212. The upper and lower end faces of the guide groove 212 respectively form limiting stops 212a to limit the movement stroke of the boss 223.

[0073] Furthermore, a positioning post 7 is provided on the base component 21, a limiting groove 8 is provided on the button 61, and a second elastic reset element 631 is provided between the button 61 and the base component 21. When the button 61 is pressed and the positioning post 7 is limited within the limiting groove 8, the second elastic reset element 631 is compressed. At this time, pressing the button 61 pushes the rotating block 611 to rotate. When the positioning post 7 is pressed out of the limiting groove 8, the button 61 leaves the rotating block 611.

[0074] Furthermore, the traction cable 52 and the flexible connector 62 are steel wire ropes.

[0075] The working principle of this utility model is as follows:

[0076] See Figures 1 to 12 This utility model provides a folding stroller based on a latching and locking mechanism. The overall structure is compact, folding is convenient, and locking is reliable. The frame 1 serves as the main support component. The rear support 1-1 is fixedly connected to the frame 1 and has a rear wheel assembly installed. The front support 1-2 is rotatably mounted on the rear support 1-1, and a connecting rod 1-3 is provided between the front support 1-2 and the rear support 1-1. This structural design allows the stroller to be folded flexibly when needed.

[0077] The handle assembly 2 is an important component of the folding frame. Its base component 21 is connected to the frame 1 via a latching linkage mechanism, achieving a stable connection and quick unlocking between the handle assembly 2 and the frame 1. The latching linkage mechanism has a locked state and an unlocked state. In the locked state, the base component 21 is fixedly connected to the frame 1, ensuring stability when pushing the stroller. In the unlocked state, the locking mechanism 4 is switched to the unlocked state by triggering the preset movement of the operating component 22 (i.e., the boss 223 below acts on the rotating component 51, and then the rotating component 51 and the traction cable 52 move to switch the locking mechanism 4 to the unlocked state). This allows the handle assembly 2 to rotate and fold around the frame 1, while the front support 1-2 can rotate and fold around the rear support 1-1, also driving the connecting rod 1-3 to rotate, thus realizing the overall folding of the stroller. A schematic diagram of the folded stroller is shown below. Figure 6-11 As shown.

[0078] The specific structure of the latch linkage mechanism includes a transmission assembly 5 housed within the base component 21 and a locking mechanism 4 mounted on the frame 1, which are linked together. The transmission assembly 5 mainly consists of a rotating component 51 and a traction cable 52. The rotating component 51 is rotatably mounted on the base component 21 and connected to the traction cable 52, the other end of which is connected to the locking mechanism 4. When the operating component 22 moves, it pushes the rotating component 51 to rotate, thereby switching the locking mechanism 4 from the locked state to the unlocked state via the traction cable 52. At this time, the handle assembly 2 can rotate relative to the frame 1.

[0079] Based on the above technical solution, the locking mechanism 4 further includes a latch 41, a slot 42, and a return spring 43. The slot 42 is disposed on the frame 1, and the latch 41 is slidably mounted on the base component 21 and engages with the slot 42 to achieve locking. The return spring 43 is installed 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 latch 41 is released, the return spring 43 pushes the latch 41 to automatically return to the slot 42, thus the locking mechanism 4 locks the handle assembly 2 and the frame 1 in a locked state, preventing the handle assembly 2 from rotating relative to the frame 1 to achieve folding.

[0080] The base component 21 can be composed of two symmetrically arranged L-shaped rotating tubes 211, each L-shaped rotating tube 211 having a sliding channel 213 inside. The operating component 22 is a U-shaped operating rod, with its two ends inserted into the two sliding channels 213 respectively, and can slide along the sliding channels 213. When the operating component 22 slides, its two ends push the rotating component 51 to rotate, thereby driving the locking mechanism 4 to unlock through the traction cable 52. The end of the operating component 22 has a boss 223. When the operating component 22 moves axially, the boss 223 directly abuts against and pushes the rotating component 51 to rotate, thereby linking the locking mechanism 4 to achieve the unlocking action.

[0081] The button linkage mechanism includes a button 61, a rotating block 611, a flexible connector 62, and an elastic first reset element 63. The button 61 is mounted on the operating component 22, the rotating block 611 is rotatably mounted on the operating component 22, the flexible connector 62 connects the rotating block 611 and the boss 223, and the elastic first reset element 63 is installed between the boss 223 and the base component 21. When the user presses the button 61, the button 61 pushes the rotating block 611 to rotate and pulls the flexible connector 62, causing the boss 223 to overcome the elastic force of the elastic first reset element 63 and move upward, disengaging from the rotating component 51. At this time, the rotating component 51 resets under the action of the locking mechanism 4, and the latch 41 remains locked to the slot 42. When the button 61 is released, the elastic first reset element 63 returns to its original shape, pulling the boss 223 downward, causing the boss 223 to re-engage and push the rotating component 51 to rotate, thereby unlocking the locking mechanism 4 through the traction cable 52.

[0082] In addition, the base component 21 has a guide groove 212 inside, and the boss 223 slides in the guide groove 212. The upper and lower end faces of the guide groove 212 form limiting stops 212a to limit the movement of the boss 223 and prevent excessive movement of the boss 223 from causing structural failure. A positioning post 7 and a limiting groove 8 are also provided between the base component 21 and the button 61, which, together with the second elastic reset element 631, realize the positioning and reset functions of the button 61. When button 61 is pressed, positioning post 7 enters limiting groove 8, and second elastic reset element 631 is compressed. At this time, button 61 pushes rotating block 611 to rotate, and rotating block 611 drives flexible connector 62 to move upward, so that boss 223 overcomes the elastic force of first elastic reset element 63 and moves upward, disengaging from rotating part 51. When button 61 is pressed until positioning post 7 disengages from limiting groove 8, button 61 leaves rotating block 611, elastic first reset element 63 recovers its deformation, pulls boss 223 downward, so that boss 223 re-abuts and pushes rotating part 51 to rotate, thereby unlocking locking mechanism 4 through traction cable 52.

[0083] In the above technical solution, the traction cable 52 and the flexible connector 62 can be made of high-strength steel wire rope, which has good tensile strength and durability, can withstand frequent folding operations, and ensure the long-term stable operation of the latch linkage mechanism.

[0084] This application discloses a folding stroller based on a latching linkage locking mechanism, comprising: a frame, a rear support, a front support, and a connecting rod; a handle assembly including a base component and an operating component, the base component being connected to the frame via a latching linkage mechanism; wherein, the latching linkage mechanism has: a locked state: maintaining a fixed connection between the base component and the frame; and an unlocked state: triggered by a preset movement of the operating component relative to the base component; when the latching linkage mechanism is in the unlocked state, the handle assembly can rotate and fold around the frame, while the front support drives the connecting rod to rotate and fold around the rear support to achieve overall folding of the stroller. This utility model, through the unique design of the latching linkage mechanism, requires only a simple preset movement of the operating component to trigger unlocking, integrating functions that originally required multiple independent locking mechanisms into a single linkage system. This integrated design not only optimizes the overall structure of the stroller but also reduces the number of components and mechanical failure points, lowering the design and manufacturing costs of the stroller.

[0085] 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 stroller based on the locking of the card-to-linkage, characterized in that, include: Frame (1); The rear bracket (1-1) is fixedly connected to the frame (1) and has the rear wheel assembly installed on it; A front bracket (1-2) is rotatably connected to a rear bracket (1-1) and has a front wheel assembly installed thereon. A connecting rod (1-3) is rotatably arranged between the rear bracket (1-1) and the front bracket (1-2). The handle assembly (2) includes a base component (21) and an operating component (22), wherein the base component (21) is connected to the frame (1) via a latch linkage mechanism; The latch linkage mechanism has the following features: Locked state: Keeps the base component (21) fixedly connected to the frame (1); Unlocked state: triggered by a preset movement of the operating component (22) relative to the base component (21); When the latch linkage mechanism is in the unlocked state, the handle assembly (2) can rotate and fold around the frame (1), and at the same time, the front bracket (1-2) drives the connecting rod (1-3) to rotate and fold around the rear bracket (1-1) to realize the overall folding of the stroller.

2. The folding stroller based on the locking of the dovetail linkage as claimed in claim 1, wherein, The latch linkage mechanism includes a transmission component (5) disposed in the base component (21) and a locking mechanism (4) disposed on the frame (1). The transmission component (5) is 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), so that the locking mechanism (4) switches from the locked state to the unlocked state. At this time, the handle assembly (2) can rotate relative to the frame (1).

3. The folding stroller based on the locking of the dovetail linkage as claimed in claim 2, wherein, The transmission assembly (5) 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 component (22) moves relative to the base component (21), the operating component (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).

4. The folding stroller based on the locking of the dovetail linkage as claimed in claim 2, wherein, 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 latch (41) is released, the return spring (43) pushes the latch (41) to automatically return to the slot (42).

5. The folding stroller based on the locking of the dovetail linkage as claimed in claim 1, wherein, 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).

6. The folding stroller based on the locking of the dovetail linkage as claimed in claim 1, wherein, 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.

7. The folding stroller based on the locking of the dovetail linkage as claimed in claim 3, wherein, The operating component (22) is provided with a button linkage mechanism, which includes: Button (61) is set on the operating component (22); Rotating block (611) is rotatably mounted on operating component (22); A flexible connector (62) is connected at one end to a rotating block (611) and at the other end to a boss (223); The first elastic reset element (63) is disposed between the boss (223) and the base component (21); When the button (61) is pressed, the rotating block (611) rotates and pulls the flexible connector (62), so that the boss (223) overcomes the elastic force of the first elastic reset element (63) and moves upward and disengages from the rotating part (51). When the button (61) is released, the first elastic reset element (63) restores its deformation, pushes the boss (223) to move down, so that the boss (223) abuts against and pushes the rotating part (51) to rotate, thereby switching the locking mechanism (4) to the unlocked state.

8. The folding stroller based on the locking of the dovetail linkage according to claim 6, characterized in that, The base component (21) is provided with a guide groove (212), and the boss (223) is slidably disposed in the guide groove (212). The upper and lower end faces of the guide groove (212) respectively form limiting stops (212a) to limit the movement stroke of the boss (223).

9. The folding stroller based on the locking of the dovetail linkage according to claim 7, characterized in that, The base component (21) is provided with a positioning post (7), the button (61) is provided with a limiting groove (8), and a second elastic reset element (631) is provided between the button (61) and the base component (21). When the positioning post (7) is limited in the limiting groove (8) when the button (61) is pressed, the second elastic reset element (631) is compressed. At this time, pressing the button (61) pushes the rotating block (611) to rotate. When the positioning post (7) is dislodged from the limiting groove (8) when the button (61) is pressed, the button (61) leaves the rotating block (611).

10. The folding stroller based on the locking of the dovetail linkage according to claim 7, characterized in that, The traction cable (52) and the flexible connector (62) are steel wire ropes.

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