A fast folding bassinet stroller

Abstract

The embodiment of the application provides a quick folding sleeping basket stroller, and relates to the technical field of the stroller, which comprises a frame and a sleeping basket detachably connected to the frame, and a linkage unlocking assembly is arranged at the connecting position of the frame and the sleeping basket; the sleeping basket comprises an upper frame, a lower frame and a folding assembly, the upper frame is provided with a sleeping basket unlocking assembly, the upper frame is synchronously driven to fold the lower frame through the folding assembly when the upper frame is folded, and the linkage unlocking assembly is driven to release the locking of the frame when the sleeping basket is completely folded. The three fences of the upper frame are sequentially and orderly folded through the cooperation of the first and second locking pins and the arc-shaped grooves; the bottom plate of the lower frame is synchronously folded through the connecting rod and the auxiliary connecting rod in the folding assembly; the linkage unlocking assembly transmits the driving force of the folding of the sleeping basket to the frame locking pin through the multi-stage inclined surface push block to realize unlocking. The upper frame folding, the lower frame folding and the frame folding can be sequentially completed through single operation, and the application has the advantages of simple operation, orderly folding and compact structure.

Description

Technical Field

[0001] This invention relates to the field of stroller technology, and more particularly to a quick-folding bassinet stroller. Background Technology

[0002] Strollers are an essential tool for traveling with infants and toddlers. For ease of storage and portability, existing strollers are typically designed with a foldable structure. Detachable strollers feature a bassinet that can be detached from the frame, allowing users to change the bassinet, seat, or other compartments as needed, offering good functional expandability.

[0003] For easy storage, bassinets are typically designed with a foldable structure, and the frame also folds using its own folding joints. Existing technologies include solutions that simultaneously fold the basket and frame, for example, using a linkage mechanism between the plug on the basket and the socket on the frame to unlock the frame's locking mechanism when the basket folds, achieving synchronized folding. However, in such solutions, folding the basket itself usually requires the user to operate in steps—first folding the upper frame's railings, then folding the lower frame, which remains cumbersome. Furthermore, the lack of linkage between the folding of the upper frame and the folding of the lower frame results in low folding efficiency. In addition, the transmission structure between basket folding and frame unlocking is relatively simple, lacking flexibility in the transmission path layout.

[0004] To address the aforementioned issues, there is an urgent need for a quick-folding bassinet stroller that can be folded with a single click. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a quick-folding bassinet stroller.

[0006] The present application provides a quick-folding bassinet stroller using the following technical solution: A quick-folding bassinet stroller includes a frame and a bassinet detachably connected to the frame. Both the frame and the bassinet are foldable. A linkage unlocking component is provided at the connection between the frame and the bassinet. The bassinet includes an upper frame, a lower frame, and a folding component. The upper frame includes a first barrier, a second barrier, and a third barrier. The lower frame includes a first base plate, a second base plate, a third base plate, a fourth base plate, and a fifth base plate that are hinged sequentially. The upper frame is equipped with a bassinet unlocking component, which includes a first rotating member and second and third rotating members rotatably disposed on both sides of the first rotating member. The first rotating member is connected to the first barrier, the second rotating member is connected to the second barrier, and the third rotating member is connected to the third barrier. A first locking pin is provided between the first and second rotating members, and a second locking pin is provided between the first and third rotating members. Pulling the bassinet unlocking component releases the first and second locking pins. The first, second, and third enclosures are rotated, folded, and brought closer together in sequence. The folding assembly includes a first connecting rod, a second connecting rod, and a slider synchronizing rod. A first slider and a second slider are slidably mounted on the first and second connecting rods, respectively. The slider synchronizing rod includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively hinged to the first slider and the second connecting rod, and the two ends of the second connecting rod are respectively hinged to the middle of the first connecting rod and the second slider. One end of the first connecting rod is hinged to the third base plate, and the other end is hinged to the first enclosure. One end of the second connecting rod is fixed to the third base plate, and the other end is hinged to the third enclosure. Auxiliary connecting rods are respectively hinged to the first slider and the second slider. The other ends of the two auxiliary connecting rods are respectively hinged to the second base plate and the fourth base plate. When the upper frame folds, the lower frame folds synchronously through the folding assembly. When the bassinet is folded to the fully folded state, the linkage unlocking assembly is instantly activated to release the locking state of the frame.

[0007] Optionally, the first rotating member and the second rotating member each have a first groove on their opposite sides. The first locking pin is slidably disposed in the first groove. In its natural state, the first locking pin is simultaneously located between the two first grooves to lock the relative rotation of the first rotating member and the second rotating member. The first locking pin has a first protrusion on the side near the first rotating member, and the first protrusion has a slope. The first rotating member has a second groove on the side near the third rotating member, and the third rotating member has an arc-shaped groove on the side near the first rotating member. The second locking pin is slidably disposed in the second groove and has an oblong hole. The second locking pin has a second protrusion slidably disposed in the arc-shaped groove on the side near the third rotating member, and a third protrusion on the side near the second rotating member. The third protrusion has a slope, and the slope of the first protrusion and the slope of the third protrusion are fitted together. An unlocking lever is hinged to the first enclosure, and the unlocking lever is connected to the second locking pin via a pull rope.

[0008] Optionally, the arc-shaped groove includes an inner groove and an outer groove. When the second protrusion is in the outer groove, it is limited by the groove wall and cannot rotate in the folding direction. When the second protrusion is in the inner groove, it can rotate freely in the folding direction.

[0009] Optionally, the first locking pin and the second locking pin are each provided with a return spring, which is used to automatically return to the locked position in the unfolded state.

[0010] Optionally, torsion springs are provided at the hinge joints of the first and second base plates and the hinge joints of the third and fifth base plates to help the first and fifth base plates remain horizontal in the unfolded state.

[0011] Optionally, the linkage unlocking component includes a connector plug and a connector socket; the two ends of the third base plate are respectively provided with connector plugs, and the frame is provided with corresponding connector sockets. The connector plug is inserted into the connector socket to realize the detachable connection between the bassinet and the frame; a first reset pin is slidably provided on the connector socket. After the connector plug is inserted into the connector socket, it automatically locks. Pressing the first reset pin releases the locking state to remove the bassinet.

[0012] Optionally, the frame includes a rear leg assembly, a handlebar assembly rotatably mounted on the rear leg assembly, and a front leg assembly rotatably mounted on the handlebar assembly. The connector socket is disposed on the handlebar assembly. The connector plug includes a plug housing. One end of the first connecting rod is provided with a first disc, which is rotatably mounted on the plug housing. The first disc has a fourth protrusion with an inclined surface. A first push block is slidably disposed inside the plug housing. One end of the first push block abuts against the first disc. The end of the first push block near the first disc has a fifth protrusion with an inclined surface. The inclined surface of the fourth protrusion contacts and engages with the inclined surface of the fifth protrusion. When the first connecting rod rotates, it drives the first disc to rotate, and the inclined surface engages to push the first push block to slide along the axial direction of the first disc. The connector socket includes... The device includes a socket housing, within which a second, third, and fourth push block are slidably mounted. When the first push block slides, it pushes the second push block to slide in the same direction. The sliding direction of the third push block is perpendicular to the sliding direction of the second push block. The second and third push blocks are connected by an inclined plane to change the direction of the pushing force. The third push block is connected to the fourth push block, and the fourth push block slides in the same direction as the third push block. A third locking pin is slidably mounted on the rear leg assembly. The socket housing has a through hole. In its natural state, the third locking pin passes through the through hole and abuts against one end of the fourth push block, locking the relative rotation of the armrest assembly and the rear leg assembly. When the bassinet is folded, the first disc sequentially drives the first, second, third, and fourth push blocks to slide. The fourth push block pushes the third locking pin out of the through hole, releasing the locking state of the armrest assembly and the rear leg assembly.

[0013] Optionally, a return spring is fitted on the third locking pin to automatically return it to the locking position through the through hole when it is in the unfolded state.

[0014] Optionally, the plug housing is provided with a slide rail groove, and the socket housing is provided with a slide rail on the side near the sleeping basket. The slide rail is inserted into the slide rail groove to realize the guiding insertion of the connector plug and the connector socket.

[0015] In summary, this application includes at least one of the following beneficial technical effects: Users only need to pull the unlock lever once to trigger the folding of the upper frame's three sides, the folding of the lower frame's bottom plate, the unlocking of the frame, and the folding of the entire vehicle in sequence, achieving "one pull for full folding", making the operation extremely simple; With the cooperation of the first locking pin, the second locking pin and the arc groove, the three enclosures fold in sequence according to the set order, avoiding interference and jamming caused by the simultaneous movement of each enclosure. The folding process is orderly and reliable. When the basket is fully folded, it automatically folds up and fits snugly against the armrest assembly. When the frame is folded, the basket moves together with the armrest assembly. The overall folded size is small, making it easy to store and carry. The force direction is converted by multi-stage inclined push blocks, and the unlocking drive is completed in a compact space. The sliding cooperation of each push block is simple and reliable, and the transmission efficiency is high. Each locking pin has an automatic reset function, automatically locking when unfolded to prevent accidental folding due to misoperation, ensuring high safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vehicle frame structure; Figure 3 Here is a schematic diagram of the bassinet structure: Figure 4 This is an exploded view of the bassinet unlock component; Figure 5 This is a schematic diagram of the internal structure of the first rotating component; Figure 6 This is a schematic diagram of the first and second locking pins; Figure 7 This is a schematic diagram of the connector plug structure; Figure 8 This is a schematic diagram of the frame structure; Figure 9 This is a schematic diagram of the core components of the linkage unlocking component; Figure 10 This is a schematic diagram of the internal structure of the connector socket; Figure 11 This is a schematic diagram of the folded sleeping basket of the present invention; Figure 12This is a schematic diagram of the entire invention after it has been folded.

[0017] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Rear leg assembly; 12. Handrail assembly; 13. Front leg assembly; 111. Third locking pin; 121. Handrail sleeve; 2. Basket; 211. First enclosure; 212. Second enclosure; 213. Third enclosure; 221. First floor plate; 222. Second floor plate; 223. Third floor plate; 224. Fourth floor plate; 225. Fifth floor plate; 231. First connecting rod; 232. Second connecting rod; 233. Auxiliary connecting rod; 234. First disc; 235. Fourth protrusion; 3. Linkage unlocking assembly; 3 1. Connector plug; 311. Plug housing; 312. First push block; 313. Fifth protrusion; 32. Connector socket; 321. First reset pin; 322. Second push block; 323. Third push block; 324. Fourth push block; 325. Socket housing; 4. Basket unlocking assembly; 41. First rotating component; 42. Second rotating component; 43. Third rotating component; 44. Unlock lever; 411. Second locking pin; 412. Second protrusion; 413. Third protrusion; 421. First locking pin; 422. First protrusion; 431. Arc groove. Detailed Implementation

[0018] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0019] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0020] The following is in conjunction with the appendix Figure 1-12 The present invention will be described in further detail below.

[0021] This application discloses a quick-folding bassinet stroller, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a frame 1, with a detachable basket 2 attached to the frame 1. Both the frame 1 and the basket 2 are foldable. A linkage unlocking component 3 is provided at the connection between the frame 1 and the basket 2. The basket 2 includes an upper frame, a lower frame, and a folding component. The upper and lower frames are connected by the folding component. A basket unlocking component 4 is provided on the upper frame for folding the upper frame. The folding of the upper frame synchronously drives the folding of the lower frame through the folding component, thereby achieving the overall folding of the basket 2. The moment the basket 2 is folded, it will drive the linkage unlocking component 3 to release the locking state of the frame 1. The frame will then automatically fold under the action of gravity, thus completing the folding of the basket 2 to the frame 1 with one click. The linkage unlocking component 3 includes a connector plug 31 and a connector socket 32. The connector plug 31 is located on the lower frame, and the connector socket 32 ​​is located on the frame 1.

[0022] Reference Figure 3 , Figure 4 and Figure 5 The upper frame includes a first enclosure 211, a second enclosure 212, and a third enclosure 213. The bassinet unlocking assembly 4 includes a first rotating component 41. The first rotating component 41 has a first rotating shaft in the middle. The first rotating component 41 has a second rotating component 42 and a third rotating component 43 on its two sides. The second rotating component 42 and the third rotating component 43 can rotate along the first rotating shaft. The first rotating component 41 is connected to the first enclosure 211, the second rotating component 42 is connected to the second enclosure 212, and the third rotating component 43 is connected to the third enclosure 213. The first rotating component 41 and the second rotating component 42 each have a first groove on opposite sides. The first rotating component 41 has a second groove on the side closer to the third rotating component 43, and the third rotating component 43 has an arc-shaped groove 431 on the side closer to the first rotating component 41.

[0023] Reference Figure 4 , Figure 5 and Figure 6 A first locking pin 421 is slidably disposed in the first groove. In its natural state, the first locking pin 421 is located between the first rotating member 41 and the second rotating member 42, thereby locking the independent rotation between the first rotating member 41 and the second rotating member 42. The first locking pin 421 has a first protrusion 422 near the first rotating member 41, and the first protrusion 422 has a bevel. A second locking pin 411 is slidably disposed in the second groove. The second locking pin 411 has an oblong hole through which the first rotating shaft passes. The second locking pin 411 has a second protrusion 412 near the third rotating member 43. The second locking pin 411 has a third protrusion 413 near the second rotating part. The second protrusion 412 can slide along the arc-shaped groove 431. The third protrusion 413 has an inclined surface. The inclined surface on the first protrusion 422 and the inclined surface on the third protrusion 413 have the same inclination angle and orientation. In the natural state, the first protrusion 422 and the third protrusion 413 are adjacent but do not contact each other. The arc-shaped groove 431 includes an inner groove and an outer groove. When the second protrusion 412 slides in different grooves, it is limited by different side walls. When the second protrusion 412 is in the outer groove, it is limited by the groove wall and cannot rotate along the folding direction. When the second protrusion 412 is in the inner groove, it can slide along the folding direction. The second locking pin 411 is located at one end of the second groove in its natural state, allowing free rotation in the folding direction. At this time, the arc groove 431 restricts the rotation of the second protrusion 412 in the folding direction. This, combined with the physical interference of the first rotating member 41 and the second rotating member 42, locks the third rotating member 43. An unlocking lever 44 is hinged to the first enclosure 211. The unlocking lever 44 is equipped with a pull rope, which passes through the inside of the first enclosure 211 and connects to the second locking pin 411. Pulling the unlocking lever 44 causes the second locking pin 411 to move to the other side of the second groove, and the second protrusion 412 enters the inner layer of the arc groove 431. At this time, the second protrusion 412 can rotate along the folding direction, realizing the rotation of the third rotating member 43 relative to the first rotating member 41. When the second locking pin 411 moves to the other side, the inclined surface of the first protrusion 422 coincides with the inclined surface of the third protrusion 413, pulling the first locking pin 421 to move towards the first groove on the first rotating member 41, thereby releasing the locking state of the second rotating member 42, realizing the rotation of the second rotating member 42 relative to the first rotating member 41, and finally realizing the rotational movement of the first enclosure 211, the second enclosure 212 and the third enclosure 213 and bringing them closer together, finally closing and fitting the frame 1.

[0024] Reference Figure 3 and Figure 7The folding assembly includes a first connecting rod 231 and a second connecting rod 232. A first slider and a second slider are slidably mounted on the first connecting rod 231 and the second connecting rod 232, respectively. The folding assembly also includes a slider synchronizing rod, which includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively hinged to the first slider and the second connecting rod 232, and the two ends of the second connecting rod are respectively hinged to the middle of the first connecting rod and the second slider. The slider synchronizing rod is used to realize the synchronous sliding of the first slider and the second slider. The lower frame includes five bottom plates that are hinged together in sequence. In a natural state, the five bottom plates are on the same horizontal plane to form the bottom plate of the sleeping basket 2. The five base plates are sequentially divided into a first base plate 221, a second base plate 222, a third base plate 223, a fourth base plate 224, and a fifth base plate 225. The third base plate 223 is connected to the folding assembly. The two ends of the third base plate 223 are respectively provided with connector plugs 31, and the frame 1 is provided with corresponding connector sockets 32. The connector plugs 31 are inserted into the connector sockets 32 to install the bassinet 2 on the frame 1. The connector sockets 32 are also provided with a first reset pin 321. When the connector plugs 31 are inserted into the connector sockets 32, they are automatically locked. The first reset pin 321 is manually pressed to release the locking state and remove the bassinet 2. One end of the first connecting rod 231 is hinged to the connector plug 31, and the other end is hinged to the first enclosure 211. One end of the second connecting rod 232 is fixed to the connector plug 31, and the other end is hinged to the third enclosure 213. Auxiliary connecting rods 233 are also provided on the first and second connecting rods 231 and 232, respectively. One end of the auxiliary connecting rod 233 is hinged to the corresponding first or second slider, and the other end is hinged to the corresponding second base plate 222 and fourth base plate 224, respectively. When the upper frame of the bassinet is folded, the first connecting rod 231 rotates towards the second connecting rod 232. Simultaneously, the slider synchronizing rod drives the first and second sliders to slide, causing the second base plate 222 and fourth base plate 224 to flip and fold upwards around the hinge axis under the action of the auxiliary connecting rod 233. Torsion springs are also provided at the hinge points of the first and second base plates 221 and 222, and the third and fifth base plates 223 and 225. The torsion springs, in conjunction with the physical limiting at the bottom of the base plates, ensure that the two base plates on both sides remain on the same plane.

[0025] Reference Figure 2 and Figure 8 The frame 1 includes a rear leg assembly 11, a handlebar assembly 12 rotatably mounted on the rear leg assembly 11, a front leg assembly 13 rotatably mounted on the handlebar assembly 12, and rollers rotatably mounted on both the front leg assembly 13 and the rear leg assembly 11. A connector socket 32 ​​is disposed on the handlebar assembly 12. The connector socket 32 ​​includes a socket housing 325, on which a second rotating shaft and a third rotating shaft are provided. The handlebar assembly 12 includes a handlebar sleeve 121, on which a handlebar is sleeved. An adjustment button is provided on the handlebar for adjusting the extension and retraction of the handlebar on the handlebar sleeve 121. The connector socket 32 ​​is provided at the end of the handlebar sleeve 121 away from the handlebar.

[0026] Reference Figure 9 and Figure 10 The first connecting rod 231 has a first disc 234 at one end near the lower frame. When the first connecting rod 231 is folded and rotated, it drives the first disc 234 to rotate. The first disc 234 has a fourth protrusion 235 with a bevel. The connector plug 31 includes a plug housing 311. A first push block 312 is slidably disposed inside the plug housing 311. One end of the first push block 312 abuts against the first disc 234. The plug housing 311 has a trapezoidal slide rail groove on the side near the frame 1. The first disc 234 is rotatably mounted on the plug housing 311. One end of the second connecting rod 232 is fixed to the plug housing 311. The first push block 312 has a fifth protrusion 313 at the end near the first disc 234. The fifth protrusion 313 also has a slope at the end near the first disc 234. When the first connecting rod 231 rotates, when the slope of the fourth protrusion 235 contacts the slope of the fifth protrusion 313, it will push the first push block 312 to slide along the axis of the first disc 234. The socket housing 325 has a slide rail near the side of the bassinet 2. The slide rail is trapezoidal and can be inserted into the slide rail groove. The two are vertically connected, thereby fixing the bassinet 2 to the vehicle. On the socket housing 325, a second push block 322 is slidably mounted on the socket housing 325. The second push block 322 moves in the same direction as the first push block 312. When the first push block 312 moves away from the first disc 234, it will also push the second push block 322 to move in the same direction. The end of the second push block 322 away from the first push block 312 has an inclined surface. A third push block 323 is slidably mounted on the socket housing 325. The sliding direction of the third push block 323 is perpendicular to the sliding direction of the second push block 322. The end of the third push block 323 near the second push block 322 also has an inclined surface. The inclined surface abuts against the inclined surface of the second push block 322, and the direction of the pushing force is changed through the inclined surface. A fourth push block 324 is slidably provided on the socket housing 325. The third push block 323 is connected to the fourth push block 324. The sliding direction of the fourth push block 324 is the same as that of the third push block 323. A third locking pin 111 is slidably provided on the rear leg assembly 11. A through hole is provided on the socket housing 325. The third locking pin 111 can pass through the through hole and abut against one end of the fourth push block 324. In the natural state, the third locking pin 111 passes through the through hole to lock the handrail assembly 12 and the rear leg assembly 11.

[0027] Reference Figure 11 and Figure 12At the end of the folding process of the bassinet 2, the first disc 234 and the first push block 312 cooperate to convert the rotational driving force of the bassinet 2 into a linear driving force. The third push block 323 changes the direction of the linear driving force. Finally, at the moment when the bassinet 2 is folded, the third locking pin 111 is pushed away from the socket housing 325, thereby unlocking the frame 1. At this time, the bassinet 2 has been folded and gathered at the armrest assembly 12 and can move with the armrest assembly 12. Under the action of gravity, the armrest assembly 12 naturally rotates towards the rear leg assembly 11 to achieve folding. During the folding process of the armrest assembly 12, it will drive the front leg assembly 13 to fold towards the rear leg assembly 11, and finally achieve complete folding.

[0028] It is worth noting that the first locking pin 421, the second locking pin 411, the third locking pin 111 and the first reset pin 321 all have an automatic reset function. When in the unfolded state, they automatically reset to the locked position, and the reset force comes from the reset spring.

[0029] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or variations made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A quick-folding bassinet stroller, comprising a frame (1) and a bassinet (2) detachably connected to the frame (1), wherein both the frame (1) and the bassinet (2) are foldable, characterized in that: A linkage unlocking assembly (3) is provided at the connection between the frame (1) and the sleeping basket (2); the sleeping basket (2) includes an upper frame, a lower frame and a folding assembly, the upper frame includes a first enclosure (211), a second enclosure (212) and a third enclosure (213), the lower frame includes a first base plate (221), a second base plate (222), a third base plate (223), a fourth base plate (224) and a fifth base plate (225) hinged in sequence; a sleeping basket unlocking assembly (4) is provided on the upper frame, the sleeping basket unlocking assembly (4) includes a first rotating part (41) and a rotatable part disposed on the first rotating part. The second rotating part (42) and the third rotating part (43) on both sides of the component (41) are connected to the first enclosure (211), the second rotating part (42) is connected to the second enclosure (212), and the third rotating part (43) is connected to the third enclosure (213). A first locking pin (421) is provided between the first rotating part (41) and the second rotating part (42), and a second locking pin (411) is provided between the first rotating part (41) and the third rotating part (43). When the sleeping basket (2) unlocking component (4) is pulled, the first locking pin (421) and the second locking pin (411) are released. This causes the first enclosure (211), the second enclosure (212), and the third enclosure (213) to rotate and fold sequentially and come closer together. The folding assembly includes a first connecting rod (231), a second connecting rod (232), and a slider synchronizing rod. A first slider and a second slider are slidably mounted on the first connecting rod (231) and the second connecting rod (232), respectively. The slider synchronizing rod includes a first connecting rod and a second connecting rod. The two ends of the first connecting rod are respectively hinged to the first slider and the second connecting rod (232), and the two ends of the second connecting rod are respectively hinged to the middle part of the first connecting rod and the second slider. One end of the first connecting rod (231) is hinged... The third base plate (223) is connected to the third base plate (223) and the other end is hinged to the first enclosure (211). One end of the second connecting rod (232) is fixed to the third base plate (223) and the other end is hinged to the third enclosure (213). The first slider and the second slider are respectively hinged to auxiliary connecting rods (233). The other ends of the two auxiliary connecting rods (233) are respectively hinged to the second base plate (222) and the fourth base plate (224). When the upper frame is folded, the lower frame is folded synchronously through the folding component. When the sleeping basket (2) is folded to the fully folded state, the linkage unlocking component (3) is driven to release the locking state of the frame (1).

2. The quick-folding bassinet stroller according to claim 1, characterized in that: The first rotating member (41) and the second rotating member (42) are provided with first grooves on opposite sides. The first locking pin (421) is slidably disposed in the first groove. In its natural state, the first locking pin (421) is located between the two first grooves to lock the relative rotation of the first rotating member (41) and the second rotating member (42). The first locking pin (421) is provided with a first protrusion (422) on the side near the first rotating member (41), and the first protrusion (422) is provided with an inclined surface. The first rotating member (41) is provided with a second groove on the side near the third rotating member (43), and the third rotating member (43) is provided with an arc-shaped groove (431) on the side near the first rotating member (41). The second locking pin (411) is slidably disposed in the second groove. The second locking pin (411) is provided with a waist-shaped hole. The second locking pin (411) is provided with a second protrusion (412) slidably disposed in the arc groove (431) on the side near the third rotating member (43). The second locking pin (411) is provided with a third protrusion (413) on the side near the second rotating member (42). The third protrusion (413) is provided with a slope. The slope of the first protrusion (422) and the slope of the third protrusion (413) are configured to cooperate. The first enclosure (211) is hinged with an unlocking lever (44). The unlocking lever (44) is connected to the second locking pin (411) by a pull rope.

3. A quick-folding bassinet stroller according to claim 2, characterized in that: The arc-shaped groove (431) includes an inner groove and an outer groove. When the second protrusion (412) is in the outer groove, it is limited by the groove wall and cannot rotate in the folding direction. When the second protrusion (412) is in the inner groove, it can rotate freely in the folding direction.

4. A quick-folding bassinet stroller according to claim 3, characterized in that: The first locking pin (421) and the second locking pin (411) are respectively provided with a return spring, which is used to automatically return to the locked position when the pin is unfolded.

5. A quick-folding bassinet stroller according to claim 1, characterized in that: Torsion springs are provided at the hinge joints of the first base plate (221) and the second base plate (222), and at the hinge joints of the third base plate (223) and the fifth base plate (225), respectively, to help the first base plate (221) and the fifth base plate (225) remain horizontal in the unfolded state.

6. A quick-folding bassinet stroller according to claim 1, characterized in that: The linkage unlocking component (3) includes a connector plug (31) and a connector socket (32); the two ends of the third base plate (223) are respectively provided with connector plugs (31), and the frame (1) is provided with corresponding connector sockets (32). The connector plug (31) is inserted into the connector socket (32) to realize the detachable connection between the bassinet (2) and the frame (1); the connector socket (32) is slidably provided with a first reset pin (321). After the connector plug (31) is inserted into the connector socket (32), it automatically locks. Pressing the first reset pin (321) releases the locking state to remove the bassinet (2).

7. A quick-folding bassinet stroller according to claim 6, characterized in that: The frame (1) includes a rear leg assembly (11), a handlebar assembly (12) rotatably mounted on the rear leg assembly (11), and a front leg assembly (13) rotatably mounted on the handlebar assembly (12). The connector socket (32) is mounted on the handlebar assembly (12). The connector plug (31) includes a plug housing (311). One end of the first connecting rod (231) is provided with a first disc (234). The first disc (234) is rotatably mounted on the plug housing (311). The first disc (234) is provided with a fourth protrusion (235), and the fourth protrusion (235) is provided with an inclined surface. A first push block (312) is slidably disposed inside the head housing (311). One end of the first push block (312) abuts against the first disc (234). A fifth protrusion (313) is provided at the end of the first push block (312) near the first disc (234). An inclined surface is provided on the fifth protrusion (313). The inclined surface of the fourth protrusion (235) contacts and cooperates with the inclined surface of the fifth protrusion (313). When the first connecting rod (231) rotates, it drives the first disc (234) to rotate. Through the inclined surface cooperation, the first push block (312) is pushed to slide along the axial direction of the first disc (234). The connector socket (32) includes a socket outer shell. The shell (325) and socket shell (325) are slidably provided with a second push block (322), a third push block (323) and a fourth push block (324). When the first push block (312) slides, it pushes the second push block (322) to slide in the same direction. The sliding direction of the third push block (323) is perpendicular to the sliding direction of the second push block (322). The second push block (322) and the third push block (323) change the direction of the pushing force through the inclined surface cooperation. The third push block (323) is connected to the fourth push block (324). The fourth push block (324) slides in the same direction as the third push block (323). The rear leg assembly (11) is slidably provided with There is a third locking pin (111), and the socket housing (325) has a through hole. In the natural state, the third locking pin (111) passes through the through hole and abuts against one end of the fourth push block (324), locking the relative rotation of the armrest assembly (12) and the rear leg assembly (11). When the bassinet (2) is folded, the first disc (234) drives the first push block (312), the second push block (322), the third push block (323) and the fourth push block (324) to slide in sequence. The fourth push block (324) pushes the third locking pin (111) out of the through hole, releasing the locking state of the armrest assembly (12) and the rear leg assembly (11).

8. A quick-folding bassinet stroller according to claim 7, characterized in that: A return spring is fitted on the third locking pin (111) to automatically return to the locking position through the through hole when the pin is unfolded.

9. A quick-folding bassinet stroller according to claim 8, characterized in that: The plug housing (311) is provided with a slide rail groove, and the socket housing (325) is provided with a slide rail on the side near the sleeping basket (2). The slide rail is inserted into the slide rail groove to realize the guiding insertion of the connector plug (31) and the connector socket (32).

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