A children's stroller

Abstract

A children's stroller includes a stroller body and an external support component detachably or movably mounted to the stroller body. The external support component has two states: in a first state, it is housed within the stroller body; in a second state, it forms a receiving area on one side of the stroller body. This embodiment of the invention, through the detachable or movably mounted external support component, enables spatial switching of the stroller body between different usage states. When the external support component is in the unfolded state, a receiving area for sitting or placing can be formed on one side of the stroller, thereby solving the problems of low space utilization and poor functional expandability in existing children's strollers.

Description

Technical Field

[0001] This utility model relates to the field of stroller technology, specifically to a children's stroller. Background Technology

[0002] In the current market, strollers are widely used in homes, shopping malls, and outings as a common tool for infants and toddlers. Most existing strollers have features such as folding, adjustable backrests, and sunshades, and their structural designs tend to be lightweight and portable, meeting the basic needs of short-term daily outings. Types include umbrella strollers, reclining strollers, and combination strollers, with diverse product forms.

[0003] However, in practical use, existing strollers still have certain limitations: Firstly, traditional strollers only have a single seat area and cannot flexibly expand the auxiliary space. When children need to stand, play, or rest temporarily, there is a lack of additional support structure, which limits the usage scenarios. Moreover, existing strollers generally cannot meet the needs of supervising multiple children or temporarily placing items.

[0004] Secondly, existing strollers also have limitations in terms of the number of seats and seating structure. Most strollers only have a single fixed seat, which cannot be removed or expanded according to actual usage needs. For families with multiple children, or in scenarios where rest shifts are required, traditional strollers lack flexible seat addition structures, resulting in a poor user experience and limited functional adaptability.

[0005] Third, current strollers also fall short in meeting the needs of children of different ages. For example, infants need to lie on their backs, toddlers need to lean against something, and older children may need to stand temporarily or walk with assistance. Different stages of growth require different spatial configurations, load-bearing methods, and safety support structures for strollers. Traditional strollers generally lack targeted designs, making it difficult to extend their functions across age groups, thus reducing the product's lifespan and overall cost-effectiveness. Utility Model Content

[0006] The purpose of this application is to provide a child stroller and its external support components and seat, which has the advantages of flexible expansion of the usable space to meet the needs of multiple scenarios, and improve the user experience and safety.

[0007] The technical solution of this utility model is as follows: A stroller includes a stroller body and an external support assembly detachably or movably mounted on the stroller body. The external support assembly has two states: in a first state, the external support assembly is housed within the stroller body; in a second state, the external support assembly forms a receiving area on one side of the stroller body.

[0008] In one embodiment, the accommodating area is detachably equipped with a seat for a child to sit on.

[0009] In one embodiment, the external support assembly includes a tray and a first connecting assembly, the first connecting assembly being connected to one side of the trolley body, and the tray being rotatably connected to the first connecting assembly.

[0010] In one embodiment, the trolley body includes a front frame and a second connecting assembly. The front frame includes a plurality of uprights, which are connected to the second connecting assembly. In the second state, the angle between the uprights and the tray is 45-120 degrees.

[0011] In one embodiment, the external support component includes a third connecting component, one end of which is connected to the column and the other end of which is connected to one side of the tray.

[0012] In one embodiment, the third connecting component includes a strap and a plurality of buckles. The buckles include connecting holes and through holes. The buckles are connected to the tray or the column through the connecting holes, and the straps are connected to the buckles through the through holes.

[0013] In one embodiment, the seat includes: Seat plate; A fourth connecting component is attached to one side of the seat plate, and the fourth connecting component is used for detachable snap-fit ​​to the stroller; The support leg is rotatably connected to the opposite side of the seat plate, and the support leg can switch between the first state and the second state during rotation; when the support leg is in the second state, the support leg and the seat plate are set at an angle and are engaged with each other.

[0014] In one embodiment, the support foot includes a protrusion, a reset member, and a positioning post. The protrusion has through holes on both sides, the positioning post passes through the through holes, and the reset member is used to drive the positioning post to move outward from the through holes. The tray is provided with a locking hole, and positioning grooves are provided on both sides of the bottom of the locking hole; wherein: When the protrusion moves in and out of the card hole, the positioning post can selectively enter or exit the positioning groove under the drive of the reset component.

[0015] In one embodiment, the tray is further provided with a rotating rod on the side near the front frame. The first connecting assembly includes a rotating part, a snap-fit ​​part, and a connecting part. The rotating rod is rotatably connected to the rotating part. The connecting part is connected to the column through the first connecting assembly. The snap-fit ​​part is snapped into the second connecting assembly.

[0016] In one embodiment, the pallet includes a first covering frame, a second covering frame, a first load-bearing plate, a second load-bearing plate, and a third load-bearing plate, wherein the first load-bearing plate, the second load-bearing plate, and the third load-bearing plate are spaced apart between the first covering frame and the second covering frame.

[0017] This invention utilizes a detachable or movable external support component to achieve spatial switching between different usage states of the stroller. When the external support component is in the unfolded state, a seating or placement area can be formed on one side of the stroller, thereby solving the problems of low space utilization and poor functional expandability of existing children's strollers.

[0018] In addition, this invention can flexibly adjust the carrying method according to the usage needs of children of different ages, and is suitable for various scenarios such as infants lying down, toddlers riding, and older children resting temporarily, thereby improving the stroller's applicability and service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is another structural schematic diagram of an embodiment of the present utility model; Figure 3 This is another structural schematic diagram of an embodiment of the present utility model; Figure 4 yes Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the structure of the buckle of this utility model; Figure 6 This is a structural diagram of the pallet; Figure 7 This is a schematic diagram of the card slot structure; Figure 8 yes Figure 3 AA section diagram; Figure 9 yes Figure 1 Enlarged view of part B; Figure 10 This is a schematic diagram of the structure of the first connecting component; Figure 11 This is a schematic diagram of the structure of the second connecting component; Figure 12 This is a structural diagram of the seat; Figure 13 This is a structural diagram of the seat from another perspective; Figure 14 This is a structural diagram of the support leg.

[0021] Figure label: 1. The cart itself; 11. Accommodation area; 12. Front frame; 121. Column; 13. Second connecting component; 2. External load-bearing components; 21. Pallet; 211. Rotating rod; 212. First covering frame; 213. Second covering frame; 214. First load-bearing plate; 215. Second load-bearing plate; 216. Third load-bearing plate; 22. First connecting component; 221. Rotating part; 222. Snap-fit ​​part; 223. Connecting part; 23. Third connecting component; 231. Strap; 232. Buckle; 2321. Connecting hole; 2322. Through hole; 24. Slot; 241. Positioning groove; 3. Seats; 31. Seat plate; 32. Fourth connecting component; 33. Support foot; 331. Protrusion; 3311. Through hole; 3312. Reset component; 3313. Positioning pin; 4. Back frame; 5. Side frame; 6. Base plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. In existing technologies, strollers, as a means of transportation for infants and toddlers, already possess basic functions such as folding and adjustable backrests, but they generally suffer from insufficient auxiliary space. Traditional strollers only have a single fixed seat, which cannot meet the needs of multiple usage scenarios. For example, when parents travel with multiple children, the stroller lacks an extended area for other children to stand or rest temporarily; when carrying items, the stroller cannot provide additional storage space, resulting in limited flexibility in use.

[0025] To address these issues, designers noticed the neglect of space expansion in existing stroller structures. Analysis of user scenarios revealed the need for a dynamically adjustable additional support structure. During the research, designers attempted to replace the fixed seat with a detachable module, but found it couldn't simultaneously meet storage and deployment requirements. Further consideration led to the proposal of incorporating deformable components on the exterior of the stroller body, allowing for space expansion through state switching.

[0026] Therefore, refer to Figure 3 This utility model provides a children's stroller, including a stroller body 1 and an external support component 2 that can be detached or movably assembled to the stroller body 1. The external support component 2 has two states. In the first state, the external support component 2 is housed in the stroller body 1. In the second state, the external support component 2 forms a receiving area 11 on one side of the stroller body 1. The external support component 2 refers to an additional structure that is mechanically connected to the stroller body 1 to provide variable space. The first state and the second state refer to the folded storage form and the unfolded use form of the external support component 2. The accommodating area 11 refers to the open or semi-enclosed area formed on the side of the stroller, which can be formed by the unfolded tray 21, fence, or support structure, and is used to carry children or items.

[0027] In practical implementation, when expanded functionality is required, the external support component 2 is moved to one side of the stroller by disassembly or unfolding to form a usable storage area 11. For example, the external support component 2 can be rotated and unfolded around the stroller frame to form a horizontal tray 21, or it can be moved outward via a slide rail to form a storage platform. During state switching, the connection structure ensures a stable connection between the component and the stroller body 1.

[0028] It should be noted that the external support component 2 is housed within the trolley body 1. This can be achieved by housing the external support component 2 within the internal structure of the trolley body 1, such as hiding it in a storage slot at the bottom or side; or by attaching it to the outer surface of the trolley body 1, for example, by using a hinge, buckle 232, or other structures to secure it tightly to the trolley body 1. When not in use, the external support component 2 can be completely disassembled and stored separately to further reduce the trolley's size or improve its portability. These various storage methods can be flexibly selected according to usage needs, facilitating quick switching and functional adjustments in different scenarios.

[0029] It should be noted that the accommodating area 11 is not limited to... Figure 3 The cubic space shown can be flexibly adjusted in shape and volume according to the structural design of the external support component 2. The accommodating area 11 shown is only an exemplary form, used to illustrate the basic position and range of the area in its unfolded state. In practical applications, the accommodating area 11 can be expanded through multiple unfoldable or sliding structures to form elongated, trapezoidal, or multi-segmented platforms, trays, or fence areas to accommodate items of different sizes or the temporary support or storage needs of children. The spatial form of the accommodating area 11 does not constitute a limitation on the scope of protection of this utility model.

[0030] This embodiment of the invention utilizes a detachable or movable external support component 2 to achieve spatial switching of the stroller body 1 between different usage states. When the external support component 2 is in the unfolded state, it can form a seating or placement area 11 on one side of the stroller, thereby solving the problems of low space utilization and poor functional expandability of existing children's strollers.

[0031] refer to Figures 1-2 This application further proposes that the accommodating area 11 is detachably equipped with a seat 3 for children to sit on.

[0032] The receiving area 11 refers to the space formed after the external support component 2 is unfolded on one side of the trolley body 1, which can be formed by the rotating structure of the tray 21 and the connecting component. The detachable seat 3 means that the seat 3 is fixed to the receiving area 11 by means of snap-fit ​​or strap 231, so that the seat 3 can be flexibly installed or removed as needed.

[0033] In practice, when the external support component 2 is deployed to its second state, the tray 21 and the stroller body 1 form a horizontal or inclined support surface. At this time, the seat 3 is fixed to the surface of the tray 21 by the buckle 232 or the strap 231. When it is necessary to add a child's seating position, the seat 3 is installed in the receiving area 11, and the child can sit on the seat 3; when not in use, the seat 3 can be removed and stored inside the stroller body 1. Thus, the installation and removal of the seat 3 can be completed manually without the aid of tools.

[0034] Compared to existing technologies, the seat 3 of current strollers is usually a fixed structure and there is only one, which cannot be expanded or removed according to actual needs. This solution avoids the storage inconvenience caused by the fixed seat 3 occupying space by setting a removable seat 3 in the expanded storage area 11.

[0035] Through the above technical solution, this application realizes the on-demand expansion of the number of seats 3, solving the problem that traditional strollers cannot flexibly add or remove seats. For example, when traveling with families with multiple children, the need for multiple children to ride at the same time can be met by installing additional seats 3; when used by a single person, removing seats 3 can free up space for placing items. In addition, the detachable design of seats 3 facilitates cleaning and maintenance, and reduces the size of the stroller after folding.

[0036] refer to Figures 12-13 Furthermore, the seat 3 includes: a seat plate 31; a fourth connecting component 32 connected to one side of the seat plate 31, the fourth connecting component 32 being detachably snapped onto the stroller; and a support leg 33 rotatably connected to the opposite side of the seat plate 31, the support leg 33 being able to switch between a first state and a second state during rotation; when the support leg 33 is in the second state, the support leg 33 and the seat plate 31 are set at an angle and snapped onto each other.

[0037] The fourth connecting component 32 is a mechanism for detachably connecting the seat 3 to the trolley body 1. Specifically, it can be implemented using a snap-fit ​​232 or a plug-in structure. For example, a plug with a flexible latch can be provided on the side of the seat plate 31, and a corresponding slot can be provided on the trolley body 1. The fourth connecting component 32 allows the seat 3 to be quickly installed or removed, adapting to different usage scenarios. The support foot 33 is a structure that provides support when the seat 3 is unfolded. Specifically, it can be implemented using a snap-fit ​​232 connection method, providing stable support by contacting the ground when unfolded.

[0038] In practical implementation, the seat plate 31, as the main load-bearing structure of the seat 3, is detachably connected to the external load-bearing component 2 of the trolley body 1 via the fourth connecting component 32. The support leg 33 is rotatably connected to the seat plate 31 via a rotating shaft mechanism. When the seat 3 needs to be unfolded, the support leg 33 rotates around the rotating shaft to form an angle with the seat plate 31, and the angle is fixed by a snap-fit ​​structure. When it needs to be folded up, the snap-fit ​​is released, allowing the support leg 33 to return to a parallel state with the seat plate 31. For example, an elastic locking block can be provided at the end of the support leg 33, and a corresponding slot can be provided at the position of the seat plate 31. When unfolded, the locking block is embedded in the slot to form a self-locking mechanism.

[0039] This embodiment enables independent installation and removal of the seat module 3, allowing for installation or removal as needed. The dual-state switching structure of the support leg 33 ensures stable support when the seat 3 is unfolded and maintains a compact size when folded. This design solves the problem of traditional stroller seats 3 being unable to be flexibly adjusted, allowing parents to quickly expand or shrink the stroller's carrying space when carrying multiple children or needing to temporarily place items.

[0040] In one embodiment, reference Figure 14 The support foot 33 includes a protrusion 331, a reset member 3312 and a positioning post 3313. The protrusion 331 has through holes 3311 on both sides. The positioning post 3313 passes through the through holes 3311. The reset member 3312 is used to drive the positioning post 3313 to move outward from the through holes 3311. The tray 21 is provided with a locking hole 24, and positioning grooves 241 are respectively provided on both sides of the bottom of the locking hole 24; wherein: When the protrusion 331 moves in and out of the card hole 24, the positioning post 3313 can selectively enter or exit the positioning groove 241 under the drive of the reset component.

[0041] The protrusion 331 refers to the protruding structure at the end of the support foot 33, which can be made of injection-molded plastic or stamped metal. Its function is to cooperate with the locking hole 24 to connect the support foot 33 to the support plate 21. The reset element 3312 is a mechanical element that can generate elastic restoring force, which can be made of helical spring or elastic rubber block. Its function is to drive the positioning post 3313 outward through elastic force, so that the positioning post 3313 automatically enters the positioning groove 241 when the protrusion 331 is inserted into the locking hole 24. The positioning groove 241 refers to the groove structure set on both sides of the bottom of the locking hole 24, which can be formed by stamping or milling. Its function is to cooperate with the positioning post 3313 to limit the displacement of the support foot 33 relative to the support plate 21, thereby improving the connection stability.

[0042] In practical implementation, when the support foot 33 needs to be connected to the tray 21, the protrusion 331 is inserted into the locking hole 24. At this time, the positioning pin 3313 moves outward under the drive of the reset member 3312 and embeds into the positioning groove 241, so that the support foot 33 and the tray 21 form a fixed connection. When it is necessary to disassemble the support foot 33, the positioning pin 3313 is pressed out of the positioning groove 241 by external force. At this time, the protrusion 331 can be pulled out from the locking hole 24, and the support foot 33 separates from the tray 21. This structure realizes the quick assembly and disassembly of the support foot 33 and the tray 21 through mechanical linkage, while using the elastic force of the reset member 3312 to maintain the stability of the connection state.

[0043] This embodiment enables quick assembly and disassembly of the support foot 33 and the tray 21 without the need for additional tools. Furthermore, the cooperation between the positioning column 3313 and the positioning groove 241 after connection can effectively prevent the support foot 33 from shaking, thereby improving the load-bearing stability of the seat 3 in the unfolded state.

[0044] In one embodiment, the external support component 2 includes a tray 21 and a first connecting component 22, the first connecting component 22 being connected to one side of the trolley body 1, and the tray 21 being rotatably connected to the first connecting component 22.

[0045] The pallet 21 refers to a plate-like structure used to form a bearing area, and its surface can be provided with anti-slip texture to enhance the stability of the placed items. The first connecting component 22 refers to a mechanical structure that realizes the movable connection between the pallet 21 and the trolley body 1. Specifically, it can be realized by using a rotating shaft in conjunction with a limiting buckle 232. The unfolding angle of the pallet 21 can be adjusted by rotation, and the unfolded state can be fixed by the limiting mechanism.

[0046] In practice, the tray 21 is rotatably connected to the side of the stroller body 1 via the first connecting assembly 22. When the carrying space needs to be expanded, the tray 21 rotates around the connecting shaft to unfold to a horizontal state, forming a platform for placing items or for a child to stand on; when it needs to be folded, the tray 21 rotates in the opposite direction and folds to fit against the side wall of the stroller body 1. The limiting mechanism in the first connecting assembly 22 can be configured as a multi-position adjustable structure, for example, by setting a ratchet and pawl engagement device at the pivot, so that the tray 21 can remain stable at multiple unfolding angles.

[0047] In one embodiment, reference is made to... Figure 11 The trolley body 1 includes a front frame 12 and a second connecting assembly 13. The front frame 12 includes a plurality of uprights 121. The uprights 121 are connected to the second connecting assembly 13. In the second state, the angle between the uprights 121 and the tray 21 is 45-120 degrees.

[0048] The front frame 12 refers to the support structure located at the front of the stroller body 1. Specifically, it can be a frame structure formed by welding or bolting metal tubing, providing an installation base for the external load-bearing component 2. The second connecting component 13 refers to the mechanical structure used to connect the front frame 12 and the external load-bearing component 2. Specifically, it can be a hinge, pivot, or adjustable-angle connector, such as a rotary joint with a locking function, to adjust the angle between the upright 121 and the tray 21. The upright 121 is a rod-shaped component in the front frame 12 that provides vertical support. Specifically, it can be a hollow cylinder or a rectangular cross-section rod, such as an aluminum alloy tube with a diameter of 20-30 mm, to enhance the load-bearing capacity of the front frame 12. The included angle of 45-120 degrees refers to the relative angle range between the upright 121 and the tray 21 after unfolding. This can be achieved through the limiting structure of the connecting component or angle scale, such as setting multiple locking positions at the hinge. This angle range ensures the stability of the tray 21 after unfolding while preventing the child's activity space from being restricted due to an excessively large angle.

[0049] In specific implementation, when the external load-bearing component 2 switches to the second state, the tray 21 is fixedly connected to the column 121 of the front frame 12 via the second connecting component 13. At this time, a specific angle is formed between the column 121 and the tray 21, for example, adjusted to 90 degrees by the hinge rotation axis, so that the tray 21 unfolds outward to form the receiving area 11. During this process, the second connecting component 13 fixes the angle through a locking mechanism, for example, by inserting spring pins into positioning holes at different positions, to ensure that the tray 21 will not shake due to external force after unfolding. The multiple columns 121 of the front frame 12 form a triangular support structure with the tray 21 through the second connecting component 13, for example, two columns 121 are respectively connected to both sides of the tray 21, thereby distributing the load and improving the structural strength.

[0050] In one embodiment, the external support component 2 includes a third connecting component 23, one end of which is connected to the column 121, and the other end of which is connected to one side of the tray 21.

[0051] In specific implementation, the third connecting component 23 enables the tray 21 to form a fixed angle with the column 121 when unfolded, and is also indirectly connected to the front frame 12 through the third connecting component 23. When the external bearing component 2 is in the second state, the tray 21 is connected to the column 121 at one end through the second connecting component 13, and the other end is connected to the front frame 12 through the third connecting component 23, thereby forming a stable triangular support structure.

[0052] Further, refer to Figures 4-5The third connecting component 23 includes a strap 231 and a plurality of buckles 232. The buckle 232 includes a connecting hole 2321 and a through hole 2322. The buckle 232 is connected to the support plate 21 or the column 121 through the connecting hole 2321, and the strap 231 is connected to the buckle 232 through the through hole 2322.

[0053] The strap 231 refers to a flexible connecting part 223 used to fix the relative position between the tray 21 and the column 121. It can be made of nylon webbing or an elastic band. The length of the strap 231 can be adjusted to accommodate the installation requirements of trays 21 or columns 121 of different sizes. The buckle 232 refers to a fixing component with a connecting hole 2321 and a through hole 2322. It can be made of injection-molded plastic or stamped metal. The connecting hole 2321 is used to fix the buckle 232 to the surface of the tray 21 or column 121, and the through hole 2322 is used for the strap 231 to pass through to achieve assembly between the strap 231 and the buckle 232. The connecting hole 2321 refers to a through hole 3311 or threaded hole provided on the buckle 232. It can be a circular hole or an elongated hole. Bolts or rivets are used to pass through the connecting hole 2321 to fix the buckle 232 to a preset position on the tray 21 or column 121. The through hole 2322 refers to the channel provided on the buckle 232 for the strap 231 to pass through. Specifically, it can be implemented by a U-shaped groove or an annular hole. The tension of the strap 231 can be adjusted by adjusting the path of the strap 231 through the through hole 2322.

[0054] Specifically, the tray 21 and the column 121 are connected by a buckle 232 and a strap 231. The buckle 232 is pre-fixed to the edge of the tray 21 or the surface of the column 121 through a connecting hole 2321. One end of the strap 231 passes through the through hole 2322 of the buckle 232 to form a closed loop structure, and the other end is adjusted for tightness via an adjustment mechanism. When the tray 21 is unfolded to form the receiving area 11, the strap 231, through the buckle 232, limits the angle between the tray 21 and the column 121 within a preset range, preventing the tray 21 from shifting due to external forces. When the tray 21 needs to be stored, the strap 231 can be loosened to release the constraint on the tray 21, allowing the tray 21 to rotate around the connection point to the storage position. The distribution of the buckles 232 can be adjusted according to the size of the tray 21; for example, two sets of buckles 232 can be symmetrically arranged on both sides of the tray 21 to enhance connection stability.

[0055] Compared to existing technologies, current strollers typically use rigid linkages or fixed slots to connect the tray 21 and the upright 121, which cannot flexibly adjust the connection position and is complicated to disassemble. This solution, however, utilizes the combination of straps 231 and buckles 232 to quickly adjust the tightness of the straps 231 without tools, adapting to the assembly needs of trays 21 or uprights 121 of different sizes. Furthermore, the distribution of multiple buckles 232 improves connection reliability.

[0056] In one embodiment, the tray 21 is further provided with a rotating rod 211 on the side near the front frame 12. The first connecting component 22 includes a rotating part 221, a snap-fit ​​part 222 and a connecting part 223. The rotating rod 211 is rotatably connected to the rotating part 221. The connecting part 223 is connected to the column 121 through the first connecting component 22. The snap-fit ​​part 222 is snapped into the second connecting component 13.

[0057] The rotating rod 211 is a rod-shaped component connecting the tray 21 and the front frame 12. It can be made of metal or high-strength plastic and provides rotational support for the tray 21, allowing it to rotate around the front frame 12. The rotating part 221 is a rotating structure that cooperates with the rotating rod 211, allowing the rotating rod 211 to rotate within a certain angle range, thus enabling the tray 21 to switch between a first and second state. The locking part 222 is a locking structure used to fix the connection position. Its function is to ensure the stability of the tray 21 in the second state by locking with the second connecting component 13. The connecting part 223 is a fixing structure that connects to the column 121, firmly connecting the first connecting component 22 to the column 121 and ensuring the overall structure's load-bearing capacity.

[0058] In practice, the tray 21 is rotatably connected to the front frame 12 through the cooperation of the rotating rod 211 and the rotating part 221. When the storage area 11 needs to be unfolded, the tray 21 rotates outward around the rotating part 221 to a preset angle. At this time, the locking part 222 engages with the second connecting component 13, and the connecting part 223 is fixedly connected to the column 121, thereby forming a stable storage area 11 structure. When it needs to be stored, the tray 21 rotates in the opposite direction to a position that fits against the front frame 12. The locking part 222 is unlocked, and the connecting part 223 remains connected to the column 121, achieving compact storage.

[0059] In some other embodiments, limit blocks may be provided at both ends of the rotating rod 211 to prevent it from disengaging from the rotating part 221 during rotation; the snap-fit ​​part 222 may adopt an elastic snap-fit ​​232 structure, which can be quickly unlocked by pressing the release button; the connecting part 223 may be designed as an adjustable telescopic rod to adapt to columns 121 of different sizes.

[0060] Compared to existing technologies, the external support components 2 of current strollers typically employ fixed connections or simple folding structures, which cannot achieve flexible angle adjustments and quick switching, resulting in insufficient expandability. This solution, however, utilizes the cooperation between the rotating rod 211 and the rotating part 221, combined with the synergistic effect of the snap-fit ​​part 222 and the connecting part 223, to enable the tray 21 to quickly switch between folded and unfolded states, while ensuring structural stability and load-bearing capacity after unfolding.

[0061] In one embodiment, the present application further proposes that the pallet 21 includes a first covering frame 212, a second covering frame 213, a first load-bearing plate 214, a second load-bearing plate 215 and a third load-bearing plate 216, wherein the first load-bearing plate 214, the second load-bearing plate 215 and the third load-bearing plate 216 are spaced apart between the first covering frame 212 and the second covering frame 213.

[0062] The first covering frame 212 and the second covering frame 213 refer to the frame structures set on both sides of the tray 21. They can be made of metal or high-strength plastic and are used to wrap and fix the load-bearing plate, thereby enhancing the overall structural strength of the tray 21. The first load-bearing plate 214, the second load-bearing plate 215, and the third load-bearing plate 216 refer to the parallel arranged support plates. They can be made of honeycomb composite material or aluminum alloy sheet. By setting them at intervals, multiple independent load-bearing areas are formed, which can distribute pressure and adapt to the placement needs of items of different sizes.

[0063] Specifically, the first covering frame 212 and the second covering frame 213 are located on both sides of the support plate 21 and are connected by welding or bolts to form a frame structure. The first load-bearing plate 214, the second load-bearing plate 215, and the third load-bearing plate 216 are laterally fixed between the two covering frames at a preset interval, for example, the distance between adjacent load-bearing plates can be controlled within the range of 50-200 mm. When the external load-bearing component 2 is unfolded into the second state, the support plate 21 is connected to the front frame 12 through the covering frame, and the three load-bearing plates form a stepped or flat support surface, providing independent support for multiple areas of the seat 3 or items. The spaced load-bearing plates can avoid localized stress concentration and allow for the installation of connectors or storage space between adjacent plates.

[0064] Compared to existing technologies, the tray 21 of current strollers typically uses a single-layer board or a one-piece frame, which cannot adjust the support distribution according to load-bearing requirements and is prone to deformation due to local overload. This solution uses a multi-load-bearing plate layout to achieve zoned load-bearing while maintaining lightweight design. It can accommodate seats 3 or items of different sizes, and the combined structure of the cover frame and load-bearing plates significantly improves bending resistance. Furthermore, the trolley body also includes a base plate 6, a rear frame 4, and a side frame 5, and the trolley body is formed by the front frame 12, the rear frame 4, the base plate 6, and the side frame 5.

[0065] It should be noted that when all the original seats 3 are removed and the external support component 2 is in its second state, a flat storage space can be formed inside the main body of the stroller. Combined with the storage area 11 formed by the external support component 2, the whole can serve as a temporary lying platform. At this time, the child can lie flat in it with their legs naturally straight. It can be used as a temporary nap bed for the child, or as a simple first aid support bed in an emergency, significantly improving the stroller's adaptability and emergency practicality.

[0066] In some alternative embodiments, to improve the comfort of children when lying flat, flexible cushioning layers or soft padding structures may be provided on the support plate 21 and the base plate 6, respectively.

[0067] In practice, removable pads can be covered on the surfaces of the tray 21 and the base plate 6. The pads can be made of high-density foam, latex cotton or environmentally friendly EVA material and covered with skin-friendly fabric to ensure both softness and breathability.

[0068] Furthermore, the cushion structure can be fixedly connected to the tray 21 and the base plate 6 via Velcro, buckles or slots, making it easy to disassemble, clean or replace daily.

[0069] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A children's stroller, characterized in that, The device includes a trolley body and an external support assembly that can be detachably or movably mounted on the trolley body. The external support assembly has two states: in the first state, the external support assembly is housed within the trolley body; in the second state, the external support assembly forms a receiving area on one side of the trolley body.

2. The stroller according to claim 1, characterized in that, The accommodating area is detachably equipped with a seat for children to sit in.

3. The stroller of claim 2, wherein, The external support assembly includes a tray and a first connecting assembly. The first connecting assembly is connected to one side of the trolley body, and the tray is rotatably connected to the first connecting assembly.

4. The stroller of claim 3, wherein, The trolley body includes a front frame and a second connecting assembly. The front frame includes multiple uprights, which are connected to the second connecting assembly. In the second state, the angle between the uprights and the tray is 45-120 degrees.

5. The stroller of claim 4, wherein, The external support assembly includes a third connecting assembly, one end of which is connected to the column and the other end of which is connected to one side of the tray.

6. The stroller of claim 5, wherein, The third connecting component includes a strap and multiple buckles. Each buckle includes a connecting hole and a through hole. The buckle is connected to the tray or the column through the connecting hole, and the strap is connected to the buckle through the through hole.

7. The stroller of claim 3, wherein, The seat includes: Seat plate; A fourth connecting component is attached to one side of the seat plate, and the fourth connecting component is used for detachable snap-fit ​​to the stroller; The support leg is rotatably connected to the opposite side of the seat plate, and the support leg can switch between the first state and the second state during rotation; when the support leg is in the second state, the support leg and the seat plate are set at an angle and are engaged with each other.

8. The stroller according to claim 7, characterized in that, The support foot includes a protrusion, a reset member, and a positioning post. The protrusion has through holes on both sides, the positioning post passes through the through holes, and the reset member is used to drive the positioning post to move outward from the through holes. The tray is provided with a locking hole, and positioning grooves are provided on both sides of the bottom of the locking hole; wherein: When the protrusion moves in and out of the card hole, the positioning post can selectively enter or exit the positioning groove under the drive of the reset component.

9. The stroller of claim 4, wherein, The tray is also provided with a rotating rod on the side near the front frame. The first connecting component includes a rotating part, a snap-fit ​​part, and a connecting part. The rotating rod is rotatably connected to the rotating part. The connecting part is connected to the column through the first connecting component. The snap-fit ​​part is snapped into the second connecting component.

10. The stroller of claim 3, wherein, The pallet includes a first covering frame, a second covering frame, a first load-bearing plate, a second load-bearing plate, and a third load-bearing plate, wherein the first load-bearing plate, the second load-bearing plate, and the third load-bearing plate are spaced apart between the first covering frame and the second covering frame.

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