A basket and child's vehicle which can be folded and unfolded in cooperation

Abstract

The utility model discloses a sleep basket and child's car of coordinated collection and expansion, have the unfolded use state and the folding use state, including frame assembly, chassis component, front linkage assembly, rear linkage assembly, vertical slide bar, the front frame is rotatablely connected with rear frame through frame joint, and the joint avoidance slot hole is set on the front joint block or rear joint block, so that the front joint block or rear joint block rotatable and slidably constrained in vertical slide bar, so that the frame joint structure is more simple, compact, when the basket is collected and expanded, the front joint block, rear joint block slide along the vertical slide bar, and the front joint block or rear joint block with joint avoidance slot hole then rotates around the joint pivot of frame joint relative to vertical slide bar, avoids the interference simultaneously, also guides the collection and expansion action of front frame and rear frame, and then realizes the collection and expansion action smoothly.

Description

[Technical Field]

[0001] This utility model relates to the field of children's travel products technology, and in particular to a foldable and expandable baby carrier and stroller. [Background Technology]

[0002] As an important component of infant and toddler transportation, infant car seats are widely used in strollers and other similar scenarios. Their core requirements are to balance safety, comfort, and portability. Portability is mainly reflected in the fact that the car seat must be foldable for easy storage and carrying; while safety requires that the car seat be structurally stable when unfolded and to avoid the risk of accidental triggering or pinching during folding.

[0003] In the structural design of traditional baskets, a linkage component is provided between the frame and the base for vertical alignment, allowing the frame to align vertically with the corresponding base during folding. Furthermore, to ensure stable movement of the frame and base along the orthographic projection direction of the frame during vertical expansion and contraction, additional guide mechanisms are typically added to the frame joints, such as the structure disclosed in Chinese Patent 201820818641.1, where the sliders are rotatably connected to the first and second upper frames, making the frame joints relatively complex.

[0004] In addition, in existing baskets, although the base frame can move closer to the frame through the linkage component when the frame is folded, there is a problem of uncoordinated folding pace during the folding process because there is no synchronous linkage mechanism on the base frame, resulting in unsmooth folding and unfolding.

[0005] Therefore, this utility model was developed to address the aforementioned problems. [Utility Model Content]

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a folding and unfolding basket and stroller. The front frame and the rear frame are rotatably connected by a frame joint, and joint clearance slots are provided on the front or rear joint block, so that the front or rear joint block can be rotatably and slidably constrained to the vertical slide rod, thus making the frame joint structure simpler and more compact. When the basket is folded or unfolded, the front and rear joint blocks slide along the vertical slide rod, and the front or rear joint block with the joint clearance slot rotates relative to the vertical slide rod around the joint pivot of the frame joint, avoiding interference and guiding the folding and unfolding movements of the front and rear frames, thereby achieving smooth folding and unfolding movements.

[0007] This utility model discloses a basket that can be folded and unfolded in a coordinated manner, having an unfolded usage state and a folded usage state, including:

[0008] A frame assembly comprising a front frame and a rear frame that can be folded in opposite directions or unfolded in opposite directions, the front frame and the rear frame being rotatably connected by a frame joint, the frame joint comprising a front joint block fixedly connected to the front frame and a rear joint block fixedly connected to the rear frame and rotatably connected to the front joint block.

[0009] A chassis assembly, the chassis assembly including a front chassis, a chassis connecting seat and a rear chassis, the front side of the chassis connecting seat being rotatably connected to the front chassis about a first pivot A, and the rear side of the chassis connecting seat being rotatably connected to the rear chassis about a second pivot A;

[0010] A front linkage assembly, which is rotatably connected to the front frame and the front base frame respectively;

[0011] The rear linkage assembly is rotatably connected to the rear frame and the rear base frame respectively;

[0012] A vertical slide bar is located between the frame assembly and the base frame assembly. The lower end of the vertical slide bar is fixedly connected to the base frame connecting seat. The front or rear joint block is directly or indirectly provided with joint clearance slots for rotatable and slidable connection and cooperation with the vertical slide bar. When the basket switches between the unfolded and folded use states, the front and rear joint blocks rotate around the joint pivot of the frame joint along with the corresponding frame assembly. The front or rear joint block with the joint clearance slots rotates and slides relative to the vertical slide bar.

[0013] As described above, a basket that can be expanded and retracted in a coordinated manner has an expansion blocking wall and a folding blocking wall for engaging with the corresponding side wall of a vertical slide rod. When one side wall of the vertical slide rod abuts against the expansion blocking wall, the basket is in an expanded state; when the other side wall of the vertical slide rod abuts against the folding blocking wall, the basket is in a folded state.

[0014] As described above, in a basket that can be retracted and extended in a coordinated manner, a guide groove is provided on the vertical slide rod extending along its length direction, and the joint pivot between the front joint block and the rear joint block passes through the guide groove and can slide within the guide groove.

[0015] As described above, in the case of a basket that can be retracted and extended in coordination, when the basket is in the extended state, the front linkage component is connected to the front frame and the front base frame to form a parallel four-bar linkage mechanism, and / or the rear linkage component is connected to the rear frame and the rear base frame to form a parallel four-bar linkage mechanism.

[0016] As described above, a basket that can be retracted and extended in a coordinated manner includes a front linkage assembly comprising a first front linkage rod and a second front linkage rod arranged parallel to each other. The upper ends of both the first and second front linkage rods are rotatably connected to the front frame, and the lower ends of both the first and second front linkage rods are rotatably connected to the front base frame. When the basket is in the extended use state, the first front linkage rod, the second front linkage rod, the front frame, and the front base frame are connected to form a parallel four-bar linkage mechanism. The rear linkage assembly includes a rear linkage rod, the upper end of which is rotatably connected to the rear frame, and the lower end of which is rotatably connected to the rear base frame.

[0017] As described above, a basket that can be retracted and extended in coordination is provided between the front base frame and the rear base frame. The front end of the coordination link is rotatably connected to the front base frame about a third pivot A eccentric to the first pivot A, and the rear end of the coordination link is rotatably connected to the rear base frame about a fourth pivot A eccentric to the second pivot A.

[0018] As described above, a basket that can be retracted and extended in coordination includes a front guide assembly between the front base frame and the base frame connecting seat. The front guide assembly includes a front guide groove disposed on the base frame connecting seat and concentrically arranged with a first pivot A, and a front guide rod disposed on the front base frame and slidably connected to the front guide groove. And / or, a rear guide assembly is provided between the rear base frame and the base frame connecting seat. The rear guide assembly includes a rear guide groove disposed on the base frame connecting seat and concentrically arranged with a second pivot A, and a rear guide rod disposed on the rear base frame and slidably connected to the rear guide groove.

[0019] As described above, in a basket that can be retracted and extended in coordination, a joint locking component is provided between the front joint block and the rear joint block to lock them together, and a joint unlocking component is provided on the frame assembly in conjunction with the joint locking component.

[0020] As described above, in a basket that can be retracted and extended in coordination, the joint locking assembly includes joint locking grooves disposed on opposite sides of the front and rear joint blocks and a joint locking gear slidably disposed between the front and rear joint blocks and capable of simultaneously engaging with the joint locking grooves on the front and rear joint blocks. A joint locking elastic element is provided between the joint locking gear and the front joint block for driving the joint locking gear to simultaneously engage with the joint locking grooves on the front and rear joint blocks. The joint locking gear is linked to the joint unlocking assembly.

[0021] As described above, in a basket that can be retracted and extended in coordination, the joint unlocking assembly includes a joint unlocking operating component movably disposed on the front frame and a joint unlocking rotating block rotatably disposed between the joint locking gear and the rear joint block and linked with the joint locking gear. The joint unlocking operating component and the joint unlocking rotating block are linked together by a joint unlocking linkage component.

[0022] As described above, the collapsible basket also includes a canopy support rod, which is rotatably connected to a rear joint block via a support rod joint block. A support rod locking assembly is provided between the support rod joint block and the frame joint to lock the support rod joint block relative to the rear joint block.

[0023] As described above, in a basket that can be retracted and extended in coordination, the support rod locking assembly includes a support rod locking tooth groove provided on the support rod joint block; the support rod locking assembly also includes a support rod locking slider slidably disposed between the rear joint block and the joint locking gear and slidable with the joint locking gear, the support rod locking slider is provided with a support rod locking tooth block that can pass through the rear joint block and lock into the support rod locking tooth groove, a support rod locking elastic element is provided between the support rod locking slider and the front joint block for driving the support rod locking slider to elastically reset; a support rod unlocking button is movably provided on the outside of the support rod joint block and is linked to the support rod locking slider.

[0024] As described above, the collapsible basket further includes a canopy support rod, which is rotatably connected to a rear joint block via a support rod joint block. A support rod locking assembly is provided between the support rod joint block and the frame joint to lock the support rod joint block relative to the rear joint block. A support rod unlocking button is movably provided on the outside of the support rod joint block and is linked to the support rod locking assembly. The joint unlocking assembly is linked to the support rod locking assembly.

[0025] As described above, in a foldable basket, the base frame connector is fixedly connected to a basket adapter for detachable connection with a frame adapter of the vehicle frame.

[0026] This utility model also provides a children's stroller, including a foldable frame and a basket that can be folded and unfolded together as described above. The frame is provided with a frame adapter, and the base frame connecting seat is provided with a basket adapter that is detachably connected to the frame adapter.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. This utility model sets the joint clearance slot on the front joint block or the rear joint block, so that the front joint block or the rear joint block can be rotatably and slidably constrained to the vertical slide bar, thus making the frame joint structure simpler and more compact; when the basket is folded up or folded down, the front joint block and the rear joint block slide along the vertical slide bar, and the front joint block or the rear joint block with the joint clearance slot rotates relative to the vertical slide bar around the joint pivot of the frame joint, avoiding interference and guiding the folding up and folding down of the front frame and the rear frame, thereby achieving smooth folding up and folding down.

[0029] 2. To ensure the basket is stable and reliable when unfolded, an unfolding blocking wall is installed in the joint clearance slot to abut against one side wall of the vertical slide rod. The limiting effect of the unfolding blocking wall further avoids the possibility of the basket shaking when unfolded and further strengthens the stress strength of the frame joint when unfolded.

[0030] 3. Similarly, a folding stop wall is provided in the joint clearance slot for abutting against the other side wall of the vertical slide bar when in the folded state. Through the limiting effect of the folding stop wall, the folding action can be better restricted and prompted, avoiding damage to the frame joint due to excessive folding stroke.

[0031] 4. In order to stably constrain the movement trajectory of the frame joint sliding on the vertical slide bar and ensure that the extension and retraction movements are linear and smooth, the frame joint and the vertical slide bar are guided and matched through the joint pivot and the guide groove.

[0032] 5. In order to constrain the front frame and the front base frame, as well as the rear frame and the rear base frame, and to ensure stable movement trajectory during the up-and-down closing or unfolding process, the front linkage component is connected to the front frame and the front base frame to form a parallel four-bar mechanism, and / or the rear linkage component is connected to the rear frame and the rear base frame to form a parallel four-bar mechanism. That is, the parallel four-bar mechanism makes the basket move smoothly and steadily during the up-and-down closing and unfolding process.

[0033] 6. In this utility model, the coordinated linkage component coordinates the retraction and extension movements of the base frame assembly, enabling the front base frame and the rear base frame to move synchronously, further improving the smooth retraction and extension performance of the basket.

[0034] 7. This utility model utilizes the front linkage component and the rear linkage component to connect with the frame component and the base frame component to form at least one set of parallel four-bar linkage mechanism, and utilizes the coordinated linkage component set between the front base frame and the rear base frame to realize the coordinated linkage of the up and down and front and back extension and retraction actions respectively, which has the characteristics of efficient, stable and convenient extension and retraction operation.

[0035] 8. This utility model features a linkage between the joint unlocking component, the joint locking component, and the support rod locking component, as well as a linkage between the support rod unlocking button and the support rod locking component. When folding the basket, the user only needs to operate the joint unlocking component to trigger the unlocking action of the joint locking component and the support rod locking component, releasing the locking state between the front joint block, the rear joint block, and the support rod joint block, allowing for easy folding. When adjusting the canopy support rod, the user only needs to operate the support rod unlocking button to trigger the unlocking action of the support rod locking component, releasing the locking state of the support rod joint block relative to the rear joint block. Therefore, it is characterized by its convenient operation. [Attached Image Description]

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0037] Figure 1 This is a perspective view of the basket in the present invention when it is in the unfolded and in use state.

[0038] Figure 2 This is a side view of the basket in the present invention when it is in the unfolded and in use state.

[0039] Figure 3 This is a perspective view of the basket folding process in this utility model.

[0040] Figure 4 This is one of the side views of the basket during the folding process in this utility model.

[0041] Figure 5 This is the second side view of the basket during the folding process in this utility model.

[0042] Figure 6 This is a perspective view of the base frame assembly in this utility model.

[0043] Figure 7 This is one of the exploded views of the joint locking assembly in this utility model.

[0044] Figure 8 This is the second exploded view of the joint locking component in this utility model.

[0045] Figure 9 This is one of the cross-sectional views of the anterior joint block in this utility model.

[0046] Figure 10 This is the second cross-sectional view of the anterior joint block in this utility model.

[0047] Figure 11 This is a perspective view of the children's stroller in the unfolded and used state of this utility model.

[0048] Figure 12 This is a perspective view of the children's stroller in the folded-down state of this utility model.

Detailed Implementation Methods

[0049] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0050] like Figure 1-12As shown, this utility model discloses a basket that can be folded and unfolded in a coordinated manner, having an unfolded use state and a folded use state. It includes a frame assembly 1, a base frame assembly 2, a front linkage assembly 3, a rear linkage assembly 4, and a vertical slide bar 5. The frame assembly 1 includes a front frame 11 and a rear frame 12 that can be folded in opposite directions or unfolded in opposite directions. The front frame 11 and the rear frame 12 are rotatably connected via a frame joint 13. The frame joint 13 includes a front joint block 131 fixedly connected to the front frame 11 and a rear joint block 132 fixedly connected to the rear frame 12 and rotatably connected to the front joint block 131. The base frame assembly 2 includes a front base frame 21, a base frame connecting seat 22, and a rear base frame 23. The front side of the base frame connecting seat 22 is rotatably connected to the front base frame 21 around a first pivot A1, and the rear side of the base frame connecting seat 22 is rotatably connected to the rear base frame 23 around a second pivot A2. The front linkage assembly 3 is rotatably connected to both the front frame 11 and the front base frame 21. The rear linkage assembly... 4 is rotatably connected to the rear frame 12 and the rear base frame 23 respectively; the vertical slide rod 5 is located between the frame assembly 1 and the base frame assembly 2, and the lower end of the vertical slide rod 5 is relatively fixedly connected to the base frame connecting seat 22. The front joint block 131 or the rear joint block 132 is directly or indirectly provided with joint clearance slots 1311 for rotatably and slidably connecting and cooperating with the vertical slide rod 5; when the basket is switching between the unfolded use state and the folded use state, the front joint block 131 and the rear joint block 132 rotate around the joint pivot 133 of the frame joint 13 together with the corresponding frame assembly 1. The front joint block 131 or the rear joint block 132 with the joint clearance slots 1311 both rotates relative to the vertical slide rod 5 and slides relative to the vertical slide rod 5. In this invention, the front frame and the rear frame are rotatably connected by a frame joint, and joint clearance slots are provided on the front or rear joint block, so that the front or rear joint block can be rotatably and slidably constrained to the vertical slide rod, thus making the frame joint structure simpler and more compact. When the basket is folded up or down, the front and rear joint blocks slide along the vertical slide rod, and the front or rear joint block with the joint clearance slot rotates relative to the vertical slide rod around the joint pivot of the frame joint, avoiding interference and guiding the folding up and down movement of the front and rear frames, thereby achieving smooth folding up and down movement.

[0051] In some embodiments, the front underframe 21 and the rear underframe 23 are U-shaped, and the U-shaped ends of the front underframe 21 and the rear underframe 23 are connected by underframe connecting seats 22 to form a frame structure.

[0052] In some embodiments, the front base frame 21, the base frame connecting seat 22, and the rear base frame 23 are all configured as base plate structures. For example, the front base frame 21 and the rear base frame 23 are base plate structures, and the two base frame connecting seats 22 are connected by a connecting base plate to form a base plate structure.

[0053] like Figure 1-10 As shown, the joint clearance slot 1311 has an unfolding blocking wall 1312 and a folding blocking wall 1313 for abutting against the corresponding side wall of the vertical slide rod 5. When one side wall of the vertical slide rod 5 abuts against the unfolding blocking wall 1312, the basket is in the unfolded state; when the other side wall of the vertical slide rod 5 abuts against the folding blocking wall 1313, the basket is in the folded state. In this embodiment, to ensure the stability and reliability of the basket in the unfolded state, an unfolding blocking wall that abuts against one side wall of the vertical slide rod is provided in the joint clearance slot. Through the limiting effect of the unfolding blocking wall, the possibility of the basket shaking in the unfolded state is further avoided, and the stress strength of the frame joint is further enhanced when unfolded.

[0054] Similarly, a folding stop wall is provided in the joint clearance slot for abutting against the other side wall of the vertical slide bar when in the folded state. Through the limiting effect of the folding stop wall, the folding action can be better restricted and prompted, avoiding damage to the frame joint due to excessive folding stroke.

[0055] Furthermore, in this embodiment, the joint clearance slot 1311 is configured in a fan shape, and the two joint clearance slots 1311 are symmetrically arranged on the front joint block 131.

[0056] like Figure 1-5 As shown, in order to stably constrain the movement trajectory of the frame joint sliding on the vertical slide bar and ensure that the extension and retraction movements are linear and smooth, the vertical slide bar 5 is provided with a guide groove 51 extending along its length direction. The joint pivot 133 between the front joint block 131 and the rear joint block 132 passes through the guide groove 51 and can slide within the guide groove 51.

[0057] Preferably, when the basket is in the unfolded state, the joint pivot 133 cooperates with the upper wall of the guide groove 51 to provide a clear unfolding blocking position for the front joint block 131, ensuring the stability of the unfolded state. When unlocking and folding, the front joint block can only slide downwards, making the unlocking direction and folding direction unique. When the basket is in the folded state, the joint pivot 133 cooperates with the lower wall of the guide groove 51 to provide a clear folding blocking position for the front joint block 131, ensuring the stability of the folded state.

[0058] like Figure 1-5As shown, when the basket is in the unfolded state, the front linkage component 3 is connected to the front frame 11 and the front base frame 21 to form a parallel four-bar linkage, and / or the rear linkage component 4 is connected to the rear frame 12 and the rear base frame 23 to form a parallel four-bar linkage. This embodiment utilizes the front and rear linkage components connected to the frame and base frame components respectively to form at least one set of parallel four-bar linkages, and utilizes the coordinating linkage components between the front and rear base frames to achieve coordinated linkage of the up-and-down and forward-and-backward unfolding / retracting movements, resulting in efficient, stable, and convenient unfolding / retracting operations.

[0059] like Figure 1-5 As shown, in order to constrain the movement trajectory of the base frame and ensure smooth and stable opening and closing of the basket, the front linkage assembly 3 includes a first front linkage rod 31 and a second front linkage rod 32 arranged in parallel with each other. The upper ends of the first front linkage rod 31 and the second front linkage rod 32 are rotatably connected to the front frame 11, and the lower ends of the first front linkage rod 31 and the second front linkage rod 32 are rotatably connected to the front base frame 21. When the basket is in the unfolded use state, the first front linkage rod 31, the second front linkage rod 32, the front frame 11, and the front base frame 21 are connected to form a parallel four-bar linkage mechanism. The rear linkage assembly 4 includes a rear linkage rod 41. The upper end of the rear linkage rod 41 is rotatably connected to the rear frame 12, and the lower end of the rear linkage rod 41 is rotatably connected to the rear base frame 23.

[0060] Preferably, the angle between the front linkage rod 31 and the front frame 11 is equal to the angle between the rear linkage rod 41 and the rear frame 12. For example... Figure 2 As shown, the front linkage component 3 is tilted forward from bottom to top, and the rear linkage component 4 is tilted backward from bottom to top.

[0061] like Figure 1-6 As shown, a coordinating linkage 24 is provided between the front base frame 21 and the rear base frame 23. The front end of the coordinating linkage 24 is rotatably connected to the front base frame 21 about a third pivot A3 eccentric to the first pivot A1, and the rear end of the coordinating linkage 24 is rotatably connected to the rear base frame 23 about a fourth pivot A4 eccentric to the second pivot A2. The coordinating linkage enables the retraction and extension movements of the base frame components to be coordinated, allowing the front and rear base frames to move synchronously, further improving the smoothness of the basket's retraction and extension.

[0062] This embodiment uses a front linkage component, a coordinated linkage component, and a rear linkage component to coordinate the folding and unfolding actions of the frame component and the base frame component. That is, the user only needs to operate the corresponding folding action of the front frame, and the front frame will coordinate the corresponding folding action of the front base frame through the front linkage component, the front base frame will coordinate the corresponding folding action of the rear base frame through the coordinated linkage component, and the rear base frame will coordinate the corresponding folding action of the rear frame through the rear linkage component. This enables one-handed folding, meets the user's need for quick storage, and significantly improves the convenience of use.

[0063] To reduce manufacturing costs while ensuring reliable connection, the front base frame 21, base frame connecting seat 22, and rear base frame 23 are all integrally injection molded from plastic. The front base frame 21 is rotatably connected to the base frame connecting seat 22 via the front metal connecting seat 211, and the rear base frame 23 is rotatably connected to the base frame connecting seat 22 via the rear metal connecting seat 231. Furthermore, the coordinating linkage component 24 is a metal sheet, ensuring reliable linkage and structural stability.

[0064] like Figure 6 As shown, in order to achieve a synergistic improvement in structural strength, smooth retraction and extension, reliable positioning and safe use, the base frame connecting seat 22 includes a base frame connecting bottom 222 and a base frame connecting side 223 vertically connected to the base frame connecting bottom 222. The front base frame 21 is rotatably connected to the base frame connecting side 223 via a front metal connecting seat 211, and the rear base frame 23 is rotatably connected to the base frame connecting side 223 via a rear metal connecting seat 231. The lower end of the vertical slide rod 5 is fixedly connected to the base frame connecting side 223. The base frame connecting bottom 222 is provided with a positioning recess 224 for the coordinated linkage component 24 to be inserted and positioned. The two base frame connecting bottoms 222 are connected by a connecting base plate. The base frame connecting seat 22 forms a near-right-angle support structure through the vertically set base frame connecting bottom 222 and base frame connecting side 223, forming a load-bearing frame with better mechanical performance. It can effectively distribute the load transmitted by the front base frame 21, rear base frame 23 and vertical slide bar 5, and prevent the base frame connecting seat from deforming or breaking due to excessive force on one side, significantly improving the stability and safety of the base frame assembly 2 in the unfolded use state.

[0065] like Figure 1-6 As shown, in order to accurately constrain the movement trajectory of the front and rear underframes, a front guide assembly 25 is provided between the front underframe 21 and the underframe connecting seat 22. The front guide assembly 25 includes a front guide groove 251 disposed on the underframe connecting seat 22 and concentrically arranged with the first pivot A1, and a front guide rod 252 disposed on the front underframe 21 and slidably connected to the front guide groove 251; and / or, a rear guide assembly 26 is provided between the rear underframe 23 and the underframe connecting seat 22. The rear guide assembly 26 includes a rear guide groove 261 disposed on the underframe connecting seat 22 and concentrically arranged with the second pivot A2, and a rear guide rod 262 disposed on the rear underframe 23 and slidably connected to the rear guide groove 261.

[0066] like Figure 1-8As shown, for reliable locking and convenient unlocking, a joint locking assembly 6 is provided between the front joint block 131 and the rear joint block 132 to lock them together. A joint unlocking assembly 7, which is linked to the joint locking assembly 6, is provided on the frame assembly 1. Specifically, the joint locking assembly 6 includes joint locking grooves 61 located on opposite sides of the front joint block 131 and the rear joint block 132, and a joint locking gear 62 slidably located between the front joint block 131 and the rear joint block 132 and capable of simultaneously engaging with the joint locking grooves 61 on both the front and rear joint blocks 131. A joint locking elastic element 63 is provided between the joint locking gear 62 and the front joint block 131 to drive the joint locking gear 62 to simultaneously engage with the joint locking grooves 61 on both the front and rear joint blocks 131. The joint locking gear 62 is linked to the joint unlocking assembly 7. The joint unlocking assembly 7 includes a joint unlocking operating member 71 movably mounted on the front frame 11 and a joint unlocking rotating block 73 rotatably mounted between the joint locking gear 62 and the rear joint block 132 and linked with the joint locking gear 62. The joint unlocking operating member 71 and the joint unlocking rotating block 73 are linked together by a joint unlocking linkage 72. During unlocking, the user operates the joint unlocking operating member 71 to move relative to the front frame 11. The joint unlocking operating member 71 drives the joint unlocking rotating block 73 to rotate accordingly through the joint unlocking linkage 72. The joint unlocking rotating block 73 drives the joint locking gear 62 to slide accordingly through two mutually cooperating unlocking inclined parts 731 until the joint locking gear 62 separates from the joint locking groove 61 of the rear joint block 132.

[0067] like Figure 7 , 8 As shown, in this embodiment, the joint locking gear 62 has a joint locking tooth 622 for locking with the joint locking tooth groove 61 of the front joint block 131 and a joint locking protrusion 623 for locking with the joint locking tooth groove 61 of the rear joint block 132.

[0068] In some embodiments, the joint locking assembly 6 is configured to lock the front joint block 131 and the rear joint block 132 when the basket is in the unfolded and folded use states.

[0069] like Figure 1-8As shown, in order to ensure reliable locking and convenient unlocking, a canopy support rod 8 is also included. The canopy support rod 8 is rotatably connected to the rear joint block 132 through a support rod joint block 81. A support rod locking assembly 9 is provided between the support rod joint block 81 and the frame joint 13 for locking the support rod joint block 81 relative to the rear joint block 132. Specifically, the support rod locking assembly 9 includes a support rod locking tooth groove 91 provided on the support rod joint block 81; the support rod locking assembly 9 also includes a support rod locking slider 92 slidably provided between the rear joint block 132 and the joint locking gear 62 and slidable with the joint locking gear 62, the support rod locking slider 92 is provided with a support rod locking tooth block 921 that can pass through the rear joint block 132 and lock into the support rod locking tooth groove 91, the support rod locking slider 92 and the front joint block 131 are provided with a support rod locking elastic element 922 for driving the support rod locking slider 92 to elastically reset; the outside of the support rod joint block 81 is movably provided with a support rod unlocking button 93 that is linked to the support rod locking slider 92. When folding, the user operates the joint unlocking mechanism 71 to move relative to the front frame 11. The joint unlocking mechanism 71 drives the joint unlocking rotating block 73 to rotate accordingly through the joint unlocking linkage 72. The joint unlocking rotating block 73 drives the joint locking gear 62 to slide accordingly through the two unlocking inclined parts 731 that cooperate with each other, until the joint locking gear 62 separates from the joint locking tooth groove 61 of the rear joint block 132. At the same time, the joint locking gear 62 blocks the inner ring 621 and the blocking buckle 923 to block and link the support rod locking slider 92 to slide accordingly, so that the support rod locking tooth block 921 separates from the support rod locking tooth groove 91, making the unlocking operation simple. When only the tilt angle of the canopy support rod 8 needs to be adjusted, the user only needs to operate the support rod unlock button 93 to push the support rod locking slider 92 to slide accordingly, so that the support rod locking tooth block 921 is separated from the support rod locking tooth groove 91. At this time, the joint locking gear 62 always remains engaged with the joint locking tooth groove 61 on the front joint block 131 and the rear joint block 132. The adjustment is simple and the use is safe and reliable.

[0070] The support rod locking assembly 9 is configured to lock the support rod joint block 81 relative to the rear joint block 132 in multiple angle positions.

[0071] like Figure 1-8As shown, it also includes a canopy support rod 8, which is rotatably connected to a rear joint block 132 via a support rod joint block 81. A support rod locking assembly 9 is provided between the support rod joint block 81 and the frame joint 13 for locking the support rod joint block 81 relative to the rear joint block 132. A support rod unlocking button 93 is movably provided on the outside of the support rod joint block 81 and is linked to the support rod locking assembly 9. The joint unlocking assembly 7 is linked to the support rod locking assembly 9. The system features a linkage mechanism between the joint unlocking component, joint locking component, and support rod locking component. It also uses a support rod unlocking button to link with the support rod locking component. When folding the basket, the user simply operates the joint unlocking component to release the locking mechanisms of the front, rear, and support rod joints, allowing for easy folding. Similarly, when adjusting the canopy support rod, the user simply operates the support rod unlocking button to release the locking mechanism of the support rod joint relative to the rear joint. This design offers convenient operation.

[0072] like Figure 1-9 As shown, for easy assembly and disassembly, the base frame connecting seat 22 is fixedly connected to a basket adapter 221 for detachable connection with the frame adapter 110 of the frame 100.

[0073] like Figure 1-12 As shown, this utility model discloses a children's stroller, including a foldable frame 100 and a basket that can be folded and unfolded together as described above. The frame 100 is provided with a frame adapter 110, and the base frame connecting seat 22 is provided with a basket adapter 221 that is detachably connected to the frame adapter 110. By integrating the basket into the frame, it features a simple structure, smooth folding and unfolding, and a small overall size when folded.

Claims

1. A basket that can be opened and closed in a coordinated manner, having an opened state and a folded state, characterized in that... include: A frame assembly (1) includes a front frame (11) and a rear frame (12) that can be folded in opposite directions or unfolded in opposite directions. The front frame (11) and the rear frame (12) are rotatably connected by a frame joint (13). The frame joint (13) includes a front joint block (131) fixedly connected to the front frame (11) and a rear joint block (132) fixedly connected to the rear frame (12) and rotatably connected to the front joint block (131). The underframe assembly (2) includes a front underframe (21), an underframe connecting seat (22), and a rear underframe (23). The front side of the underframe connecting seat (22) is rotatably connected to the front underframe (21) about a first pivot (A1), and the rear side of the underframe connecting seat (22) is rotatably connected to the rear underframe (23) about a second pivot (A2). The front linkage assembly (3) is rotatably connected to the front frame (11) and the front base frame (21); The rear linkage assembly (4) is rotatably connected to the rear frame (12) and the rear base frame (23); A vertical slide bar (5) is located between the frame assembly (1) and the base frame assembly (2). The lower end of the vertical slide bar (5) is fixedly connected to the base frame connecting seat (22). The front joint block (131) or the rear joint block (132) is directly or indirectly provided with a joint clearance slot (1311) for rotatable and slidable connection and cooperation with the vertical slide bar (5). When the basket switches between the unfolded use state and the folded use state, the front joint block (131) and the rear joint block (132) rotate around the joint pivot (133) of the frame joint (13) together with the corresponding frame assembly (1). The front joint block (131) or the rear joint block (132) with the joint clearance slot (1311) rotates relative to the vertical slide bar (5) and slides relative to the vertical slide bar (5).

2. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... The joint clearance slot (1311) has an unfolding blocking wall (1312) and a folding blocking wall (1313) for abutting against the corresponding side wall of the vertical slide rod (5). When one side wall of the vertical slide rod (5) abuts against the unfolding blocking wall (1312), the basket is in the unfolded state; when the other side wall of the vertical slide rod (5) abuts against the folding blocking wall (1313), the basket is in the folded state.

3. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... The vertical slide bar (5) is provided with a guide groove (51) extending along its length. The joint pivot (133) between the front joint block (131) and the rear joint block (132) passes through the guide groove (51) and can slide within the guide groove (51).

4. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... When the basket is in the unfolded state, the front linkage assembly (3) is connected to the front frame (11) and the front base frame (21) to form a parallel four-bar linkage mechanism, and / or the rear linkage assembly (4) is connected to the rear frame (12) and the rear base frame (23) to form a parallel four-bar linkage mechanism.

5. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... The front linkage assembly (3) includes a front linkage rod one (31) and a front linkage rod two (32) arranged in parallel with each other. The upper ends of the front linkage rod one (31) and the front linkage rod two (32) are rotatably connected to the front frame (11), and the lower ends of the front linkage rod one (31) and the front linkage rod two (32) are rotatably connected to the front base frame (21). When the basket is in the unfolded use state, the front linkage rod one (31), the front linkage rod two (32), the front frame (11) and the front base frame (21) are connected to form a parallel four-bar linkage mechanism. The rear linkage assembly (4) includes a rear linkage rod (41). The upper end of the rear linkage rod (41) is rotatably connected to the rear frame (12), and the lower end of the rear linkage rod (41) is rotatably connected to the rear base frame (23).

6. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... A coordinating linkage (24) is provided between the front base frame (21) and the rear base frame (23). The front end of the coordinating linkage (24) is rotatably connected to the front base frame (21) about a third pivot (A3) eccentric to the first pivot (A1). The rear end of the coordinating linkage (24) is rotatably connected to the rear base frame (23) about a fourth pivot (A4) eccentric to the second pivot (A2).

7. The basket that can be retracted and extended in conjunction with claim 1, characterized in that... A front guide assembly (25) is provided between the front base frame (21) and the base frame connecting seat (22). The front guide assembly (25) includes a front guide groove (251) disposed on the base frame connecting seat (22) and concentrically disposed with the first pivot (A1) and a front guide rod (252) disposed on the front base frame (21) and slidably connected with the front guide groove (251). And / or, a rear guide assembly (26) is provided between the rear base frame (23) and the base frame connecting seat (22). The rear guide assembly (26) includes a rear guide groove (261) disposed on the base frame connecting seat (22) and concentrically disposed with the second pivot (A2) and a rear guide rod (262) disposed on the rear base frame (23) and slidably connected with the rear guide groove (261).

8. A basket that can be retracted and extended in conjunction with any one of claims 1-7, characterized in that... A joint locking component (6) for locking the front joint block (131) and the rear joint block (132) is provided between them, and a joint unlocking component (7) is provided on the frame component (1) in conjunction with the joint locking component (6).

9. A basket that can be retracted and extended in conjunction with claim 8, characterized in that... The joint locking assembly (6) includes a joint locking groove (61) disposed on the opposite side of the front joint block (131) and the rear joint block (132) and a joint locking gear (62) slidably disposed between the front joint block (131) and the rear joint block (132) and capable of simultaneously engaging the joint locking groove (61) on the front joint block (131) and the rear joint block (132). A joint locking elastic element (63) is provided between the joint locking gear (62) and the front joint block (131) for driving the joint locking gear (62) to simultaneously engage the joint locking groove (61) on the front joint block (131) and the rear joint block (132). The joint locking gear (62) is linked to the joint unlocking assembly (7).

10. A basket that can be retracted and extended in conjunction with claim 9, characterized in that... The joint unlocking assembly (7) includes a joint unlocking operating member (71) movably disposed on the front frame (11) and a joint unlocking rotating block (73) rotatably disposed between the joint locking gear (62) and the rear joint block (132) and linked with the joint locking gear (62). The joint unlocking operating member (71) and the joint unlocking rotating block (73) are linked together by a joint unlocking linkage member (72).

11. A basket that can be retracted and extended in accordance with claim 9, characterized in that... It also includes a canopy support rod (8), which is rotatably connected to a rear joint block (132) via a support rod joint block (81). A support rod locking assembly (9) is provided between the support rod joint block (81) and the frame joint (13) for locking the support rod joint block (81) relative to the rear joint block (132).

12. The basket that can be retracted and extended in accordance with claim 11, characterized in that... The support rod locking assembly (9) includes a support rod locking tooth groove (91) provided on the support rod joint block (81); the support rod locking assembly (9) also includes a support rod locking slider (92) slidably provided between the rear joint block (132) and the joint locking gear (62) and slidable with the joint locking gear (62), the support rod locking slider (92) is provided with a support rod locking tooth block (921) that can pass through the rear joint block (132) and lock into the support rod locking tooth groove (91), the support rod locking slider (92) and the front joint block (131) are provided with a support rod locking elastic element (922) for driving the support rod locking slider (92) to elastically reset; the outside of the support rod joint block (81) is movably provided with a support rod unlocking button (93) that is linked to the support rod locking slider (92).

13. A basket that can be retracted and extended in conjunction with claim 8, characterized in that... It also includes a canopy support rod (8), which is rotatably connected to a rear joint block (132) via a support rod joint block (81). A support rod locking assembly (9) for locking the support rod joint block (81) relative to the rear joint block (132) is provided between the support rod joint block (81) and the frame joint (13). A support rod unlocking button (93) is movably provided on the outside of the support rod joint block (81) and is linked to the support rod locking assembly (9). The joint unlocking assembly (7) is linked to the support rod locking assembly (9).

14. A basket that can be retracted and extended in conjunction with claim 1, characterized in that... The base frame connector (22) is fixedly connected to a basket adapter (221) for detachable connection with the frame adapter (110) of the frame (100).

15. A children's stroller, characterized in that... The device includes a foldable frame (100) and a basket that can be folded and unfolded in conjunction with the basket as described in any one of claims 1-14. The frame (100) is provided with a frame adapter (110), and the base frame connector (22) is provided with a basket adapter (221) that is detachably connected to the frame adapter (110).

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