Folding baby carriage

Abstract

The invention provides a folding baby carriage, and relates to the technical field of baby carriers. The folding baby carriage includes: a frame body having a mounting frame; the moving mechanism is provided with a mounting frame body, and a moving assembly is arranged below the mounting frame body; a folding mechanism is arranged between the mounting frame and the mounting frame body, and the folding mechanism is provided with a first folding assembly arranged at the front end of the folding baby carriage and two second folding assemblies arranged on the two sides of the folding baby carriage; the first folding assembly is provided with a first U-shaped movable part and a second U-shaped movable part which are hinged to each other. The second folding assembly is provided with a first movable rod hinged to the installation frame body, a second movable rod hinged to the installation frame body and a third movable rod hinged to the installation frame. And a linkage rod is arranged between the first folding assembly and the second folding assembly. The folding efficiency is improved, the size is reduced after folding, and operation is more convenient and saves more labor.

Description

A folding stroller Technical Field

[0001] This invention relates to the field of infant vehicle technology, specifically a folding stroller. Background Technology

[0002] A stroller is a tool vehicle designed to provide convenience for infants and toddlers' outdoor activities. It is not only a comfortable mobile space for babies, but also a powerful assistant for parents when taking their babies out. A qualified stroller will integrate multiple functions to ensure the baby's comfort and safety.

[0003] Most existing stroller frames use an articulated folding design, but this has the following technical problems: First, the folding operation is cumbersome. Some strollers require multiple steps to fold, such as first folding the wheels and then folding the frame, which consumes the user's time and energy. Second, they take up a lot of space: the folded size is still not compact enough, which is not conducive to storage and carrying. For example, it is difficult to make efficient use of space in small home storage spaces or when traveling by car. At the same time, some folding mechanisms are complex in design, and users need to apply a lot of force to complete the folding or unfolding action, which is especially unfriendly to users with less strength (such as women and the elderly). Summary of the Invention

[0004] To address the problems of cumbersome folding operation, large folded size, and laborious operation of existing folding strollers, this invention provides a folding stroller with improved folding efficiency, reduced folded size, and more portable and labor-saving operation.

[0005] The technical solution adopted in this invention is:

[0006] A folding stroller, comprising:

[0007] The main frame of the vehicle must have at least a mounting bracket;

[0008] The moving mechanism has at least one mounting frame, and a moving component is disposed below the mounting frame;

[0009] A folding mechanism is disposed between the mounting bracket and the mounting frame, the folding mechanism having at least a first folding assembly disposed at the front end of the folding stroller, and two second folding assemblies on both sides;

[0010] The first folding assembly has at least a first U-shaped movable member and a second U-shaped movable member that are hinged to each other, and the first U-shaped movable member and the second U-shaped movable member are respectively hinged to the mounting frame and the mounting body; the second folding assembly has at least a first movable rod with one end hinged to the mounting body, a second movable rod with one end hinged to the mounting body, and a third movable rod with one end hinged to the mounting frame, the other end of the third movable rod being hinged to the other end of the second movable rod, and the middle part of the third movable rod being hinged to the other end of the first movable rod; and a linkage rod is provided between the first folding assembly and the second folding assembly, so that when the first folding assembly rotates, it can drive the folding stroller to fold or unfold, and when the folding stroller is unfolded, the third movable rod can abut against the bottom of the first movable rod.

[0011] Furthermore, the mounting frame is provided with extension components on both sides of the folding stroller; the extension components have at least an upper extension and a lower extension; the upper extension is provided with a plug with a snap fastener, and a linked snap-fit ​​block is provided below the snap fastener; the lower extension is connected to the crossbars on both sides of the mounting frame, and the lower extension is provided with a slot adapted to the plug and a snap-fit ​​interface adapted to the snap-fit ​​block.

[0012] Furthermore, the mounting frame is provided with a first U-shaped support frame, and the two ends of the first U-shaped support frame are respectively inserted into two slots provided on the mounting frame.

[0013] Furthermore, a sliding rod parallel to the horizontal bar is provided below the two side crossbars of the mounting frame, and a sliding seat is slidably sleeved on the sliding rod, and a second U-shaped support frame is provided on the sliding seat.

[0014] Furthermore, a shelf is provided on one side of the mounting frame, and the shelf is connected to the crossbar of the mounting frame via a fifth mounting seat. A buckle on one side of the fifth mounting seat is engaged with the crossbar of the mounting frame, and a buckle on the other side of the fifth mounting seat is engaged with the edge of the shelf. A hinge shaft is provided in the middle of the fifth mounting seat.

[0015] Furthermore, the mounting frame has at least a first mounting rod located in front of the folding stroller and a third mounting rod located behind the folding stroller; both ends of the first mounting rod are provided with first apex connectors, and both ends of the third mounting rod are provided with second apex connectors; a second mounting rod and a fourth mounting rod are respectively connected between the first apex connectors and the second apex connectors on both sides.

[0016] Furthermore, the moving component includes a first moving component disposed below two first apex connectors, the first moving component having at least a guide wheel, the guide wheel being rotatably connected to the bottom of the first apex connector via a rotating shaft; the moving component also includes a second moving component disposed below two second apex connectors, the second moving component having at least a roller, the diameter of the roller being larger than the diameter of the guide wheel, the two rollers being coaxially connected by a rotating connecting rod, and a foot pedal being disposed in the middle of the rotating connecting rod, the area near both ends of the curved surface of the foot pedal being provided with anti-slip texture.

[0017] Furthermore, the U-shaped bottom of the first U-shaped movable component is rotatably fitted with a third mounting seat, and the other end of the third mounting seat is fastened to the crossbar of the mounting frame by a ring buckle; the U-shaped bottom of the second U-shaped movable component is rotatably fitted with a fourth mounting seat, and the other end of the fourth mounting seat is fastened to the mounting frame by a ring buckle; the two ends of the first U-shaped movable component and the second U-shaped movable component are respectively hinged to each other by a first movable joint and a second movable joint; a hinge seat is provided in the middle of the third movable rod, and two hinge holes are provided on both sides of the hinge seat, and the two hinge holes are rotatably connected to the other end of the first movable rod by a hinge shaft; both ends of the linkage rod are provided with hinge holes, and the hinge hole at one end is connected to the hinge hole in the middle of the first U-shaped movable component by a rivet; the hinge hole at the other end of the linkage rod is connected to the hinge hole in the middle of the first movable rod by a rivet.

[0018] Furthermore, a locking buckle is provided on the first movable rod, at a position where it abuts against the third movable rod in the unfolded state; and a locking groove is provided on the third movable rod, at a position where it abuts against the first movable rod in the unfolded state; the locking buckle and the locking groove are adapted to each other.

[0019] Furthermore, an extension sleeve is provided on the third movable rod, located at one end of the connecting mounting bracket, and both ends of the handrail are inserted into the extension sleeves on both sides; a notch is provided on the locking buckle, and a movable positioning member that can extend into the notch is slidably disposed in the locking slot; and a linkage button is provided on the handrail, which is connected to the movable positioning member through a connecting component disposed in the internal cavity of the handrail and the third movable rod; when it is necessary to close, pressing the linkage button can drive the movable positioning member to disengage from the notch.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention features an upper frame body, a lower moving mechanism, and a folding mechanism between the frame body and the moving mechanism. The folding mechanism serves as both a connecting support mechanism and a movable deformation mechanism. A stable unfolded state is achieved through a linked first and second folding component structure on the folding mechanism. The first, second, and third movable rods of the second movable component rotate and then abut against each other, creating a counter-current contact. This linked structure, working in conjunction with other components, enables rapid unfolding and folding of the stroller. Users can complete the folding or unfolding action within seconds, significantly improving efficiency and reducing effort. The folded stroller is smaller than existing similar products, thus solving the problems of cumbersome folding operations, large folded size, and strenuous operation associated with existing folding stroller designs.

[0022] 2. This invention adopts a flattened folding method, which can be easily moved even when folded. When folded, it can also be used as a temporary trailer, making it more convenient for home storage and carrying when going out. For example, it can be easily put into the small space of a car trunk, improving the practicality of the product.

[0023] 3. The present invention also enhances the stability of the connection between the components by using high-strength iron rivets to connect the key stress parts of the frame. This avoids the problem that the connecting parts of the folding mechanism of existing strollers are prone to loosening after long-term use, which affects the stability of the overall structure of the stroller and causes safety hazards. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a perspective view of the stroller in the unfolded state according to an embodiment of the present invention;

[0026] Figure 2 is a top view of the stroller in the unfolded state according to an embodiment of the present invention;

[0027] Figure 3 is an enlarged view of point B in Figure 2;

[0028] Figure 4 is a cross-sectional view of side AA in Figure 2;

[0029] Figure 5 is an enlarged view of point C in Figure 4;

[0030] Figure 6 is a side view of the stroller in the unfolded state according to an embodiment of the present invention;

[0031] Figure 7 is an enlarged view of point D in Figure 6;

[0032] Figure 8 is a perspective view of the stroller in the folded state according to an embodiment of the present invention;

[0033] Figure 9 is an enlarged view of point E in Figure 8;

[0034] Figure 10 is a perspective view of the first folding component according to an embodiment of the present invention.

[0035] Reference numerals: 100-Chassis body, 110-Mounting bracket, 113-First mounting hole, 120-Extension assembly, 122-Upper extension, 124-Lower extension, 130-First U-shaped support frame, 140-Second U-shaped support frame, 150-Slide bar, 160-Cargo rack, 162-Fifth mounting seat, 170-Slide seat;

[0036] 200-Moving mechanism, 210-First mounting rod, 220-Second mounting rod, 222-First mounting seat, 230-Third mounting rod, 240-Fourth mounting rod, 242-Second mounting seat, 250-First apex connector, 260-Second apex connector, 270-U-shaped connecting frame, 280-Guide wheel, 290-Roller, 292-Rotating connecting rod, 294-Foot pedal;

[0037] 300 - Folding mechanism, 310 - First movable rod, 312 - Locking buckle, 320 - Second movable rod, 330 - Third movable rod, 332 - Hinge seat, 334 - Locking slot, 335 - Movable positioning component, 338 - Extending sleeve, 340 - Second U-shaped movable component, 342 - Fourth mounting seat, 350 - First movable joint, 360 - Second movable joint, 370 - Linkage rod, 380 - Handrail, 382 - Linkage button, 383 - Sliding lock, 390 - First U-shaped movable component, 392 - Third mounting seat. Detailed Implementation

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention.

[0040] The embodiments of the invention will now be described in detail with reference to the accompanying drawings.

[0041] Example 1

[0042] Most existing stroller frames use an articulated folding design, but this has the following technical problems: First, the folding operation is cumbersome. Some strollers require multiple steps to fold, such as first folding the wheels and then folding the frame, which consumes the user's time and energy. Second, they take up a lot of space: the folded size is still not compact enough, which is not conducive to storage and carrying. For example, it is difficult to make efficient use of space in small home storage spaces or when traveling. At the same time, some folding mechanisms are complex in design, and users need to apply a lot of force to complete the folding or unfolding action, which is especially unfriendly to users with less strength (such as women and the elderly).

[0043] To address the aforementioned problems in the prior art, this embodiment provides a foldable stroller for use as a vehicle for infants and toddlers during outdoor activities. This foldable stroller significantly improves folding efficiency, reduces its size when folded, and is more portable and effortless to operate. Referring to Figures 1-10, the foldable stroller mainly comprises: a frame body 100, a moving mechanism 200, and a folding mechanism 300, etc.

[0044] The frame body 100 is located on the upper part of the folding stroller in this embodiment and is used to set up a baby storage area. As shown in Figures 1 and 2, the frame body 100 is composed of multiple iron pipes connected by rivets and hinges, and mainly includes a ring-shaped mounting frame 110. The mounting frame 110 is composed of multiple sections of tubing connected together, roughly forming a rectangular shape, with rounded corners to avoid injury to the baby and the stroller operator. On the symmetrical crossbars on both sides of the mounting frame 110, and near the rear end of the stroller, there are two symmetrical first mounting holes 113. The first mounting holes 113 are used to connect to the folding mechanism 300 below.

[0045] The moving mechanism 200 is located at the lower part of the folding stroller in this embodiment, and is used to provide mobility for the stroller. The moving mechanism 200 is disposed below the folding mechanism 300, and mainly includes an upper mounting frame and a lower moving component. The mounting frame is roughly rectangular and mainly includes four mounting rods; the first mounting rod 210 is located at the front of the stroller, and the third mounting rod 230 is located at the rear of the stroller; the first mounting rod 210 has a first apex connector 250 at both ends, and the third mounting rod 230 has a second apex connector 260 at both ends; the first apex connector 250 and the second apex connector 260 on both sides are respectively connected to the second mounting rod 220 and the fourth mounting rod 240. Furthermore, on the second mounting rod 220 and the fourth mounting rod 240, near the front end of the stroller, symmetrically arranged are first mounting seats 222 and second mounting seats 242. The first mounting seats 222 and second mounting seats 242 have roughly the same shape and structure, with their downward-facing ends respectively fitted onto the second mounting rod 220 and the fourth mounting rod 240. The upward-facing ends of the first mounting seats 222 and the second mounting seats 242 have hinge holes facing each other on both sides. On the second mounting rod 220 and the fourth mounting rod 240, near the rear end of the stroller, symmetrically arranged are second mounting holes and third mounting holes. The first mounting seats 222, the second mounting seats 242, and the second and third mounting holes are all used to connect to the upper folding mechanism 300. Simultaneously, four moving components are respectively arranged below the two first corner connectors 250 and the two second corner connectors 260.

[0046] The folding mechanism 300 is located in the middle of the folding stroller in this embodiment. It serves two purposes: firstly, it connects the upper frame body 100 and the lower moving mechanism 200; secondly, it allows the stroller to change its overall shape. The folding mechanism 300 is positioned between the mounting bracket 110 of the upper frame body 100 and the frame structure of the moving mechanism 200. It mainly includes a first folding component located below the mounting bracket 110 and at the front of the stroller, and two second folding components respectively located on either side below the mounting bracket 110. The first folding component mainly includes a first U-shaped movable member 390 and a second U-shaped movable member 340. The first U-shaped movable component 390 has two third mounting seats 392 symmetrically arranged at its U-shaped bottom. One end of the third mounting seat 392 is rotatably sleeved on the U-shaped bottom of the first U-shaped movable component 390, and the other end of the third mounting seat 392 is provided with an annular buckle, which is engaged with the outer wall of the front crossbar of the mounting frame 110, thereby hinged the first U-shaped movable component 390 to the front end of the mounting frame 110. The second U-shaped movable component 340 has two fourth mounting seats 342 symmetrically arranged at its U-shaped bottom. One end of the fourth mounting seat 342 is rotatably sleeved on the U-shaped bottom of the second U-shaped movable component 340, and the other end of the fourth mounting seat 342 is provided with an annular buckle, which is engaged with the outer wall of the first mounting rod 210 of the moving mechanism 200, thereby hinged the first U-shaped movable component 390 to the front end of the mounting frame 110. The second U-shaped movable component 340 is hinged to the front end of the mounting frame of the moving mechanism 200; and the two ends of the first U-shaped movable component 390 and the second U-shaped movable component 340 are respectively connected by the first movable joint 350 and the second movable joint 360. The first movable joint 350 and the second movable joint 360 are both rotary joints, which can move flexibly when deformation is required, and can lock and bear load after deformation to maintain shape stability; the first movable joint 350 and the second movable joint 360 are mainly composed of joint components that can rotate relative to each other, and each joint component is provided with a sleeve. The two ends of the first U-shaped movable component 390 and the second U-shaped movable component 340 are inserted into the sleeves provided on the first movable joint 350 and the second movable joint 360, thereby hinged to each other. At the same time, the second folding assembly mainly includes the first movable rod 310, the second movable rod 320, and the third movable rod 330, etc.The first movable rod 310 has hinge holes at both ends. One end of the hinge hole is connected to a hinge hole on the first mounting base 222 or the second mounting base 242 of the moving mechanism 200 via a rivet, thus hinged one end of the first movable rod 310 to the mounting frame of the moving mechanism 200. The second movable rod 320 also has hinge holes at both ends. One end of the hinge hole is connected to a second mounting hole on the second mounting rod 220 or a third mounting hole on the fourth mounting rod 240 of the moving mechanism 200 via a rivet, thus hinged one end of the second movable rod 320 to the mounting frame of the moving mechanism 200. Furthermore, the third movable rod 330 has hinge holes at both ends. A hinge hole is provided, and one end of the hinge hole is connected to the first mounting hole 113 on the mounting bracket 110 by a rivet, so that one end of the third movable rod 330 is hinged to the mounting bracket 110. The hinge hole at the other end of the third movable rod 330 is connected to the hinge hole at the other end of the second movable rod 320 by a rivet, so that the other end of the third movable rod 330 is hinged to the other end of the second movable rod 320. A hinge seat 332 is provided in the middle of the third movable rod 330. The hinge seat 332 has two opposing hinge holes on both sides. The two hinge holes are rotatably connected to the other end of the first movable rod 310 by a hinge shaft. Furthermore, a linkage rod 370 is provided between the first folding assembly and the second folding assembly. Both ends of the linkage rod 370 are provided with hinge holes. The hinge hole at one end is connected to the hinge hole in the middle of the side of the first U-shaped movable part 390 of the first folding assembly through a rivet, so that one end of the linkage rod 370 is hinged to the first folding assembly. The hinge hole at the other end of the linkage rod 370 is connected to the hinge hole in the middle of the first movable rod 310 of the second folding assembly through a rivet, so that the other end of the linkage rod 370 is hinged to the first movable rod 310. Thus, when the user operates the second folding assembly to fold or unfold, the first folding assembly can be folded or unfolded synchronously.

[0047] One specific working method of this embodiment is as follows:

[0048] When unfolding is required, the operator lifts the frame body 100 or rotates the third movable rod 330 to drive the folding mechanism 300 to deform. This includes: relative rotation of the hinge point between the first movable rod 310 and the mounting frame of the moving mechanism 200; relative rotation of the hinge point between the second movable rod 320 and the mounting frame of the moving mechanism 200; relative rotation of the hinge point between the third movable rod 330 and the mounting frame 110; relative rotation of the hinge point between the first movable rod 310 and the third movable rod 330; relative rotation of the hinge point between the second movable rod 320 and the third movable rod 330; and causing the hinge point between the first U-shaped movable member 390 and the mounting frame 110 to rotate relative to each other. The stroller rotates relative to the hinge point between the second U-shaped movable member 340 and the mounting frame of the moving mechanism 200; the hinge point between the first U-shaped movable member 390 and the second U-shaped movable member 340 rotates relative to each other; until the third movable rod 330 abuts against the bottom of the first movable rod 310, the stroller changes to a stable unfolded state; when it needs to be folded, simply rotate the second movable rod 320 or the third movable rod 330 in the opposite direction, and the gravity of the frame body 100 will drive the folding mechanism 300 to automatically deform and fold, and the above-mentioned components perform the opposite movement to when unfolded; until the first movable rod 310 falls above the mounting frame of the moving mechanism 200, the stroller changes to a folded state.

[0049] In this embodiment, the folding stroller consists of an upper frame body 100, a lower moving mechanism 200, and a folding mechanism 300 between the frame body 100 and the moving mechanism 200. The folding mechanism 300 serves as both a connecting support mechanism and a movable deformation mechanism. A stable unfolded state is achieved by a linked first folding component and a second folding component structure on the folding mechanism 300, through the reverse abutment generated by the rotation of the first movable rod 310, the second movable rod 320, and the third movable rod 330 of the second movable component. This linked structure, in conjunction with the various components, enables the stroller to be quickly unfolded and folded. Users can complete the folding or unfolding action within seconds, significantly improving efficiency and reducing effort. The folded stroller is smaller than existing similar products, thus solving the problems of cumbersome folding operations, large folded size, and strenuous operation inherent in existing folding stroller designs.

[0050] Meanwhile, the folding stroller in this embodiment adopts a flat folding method, which allows for easy movement even when folded. It can also be used as a temporary trailer when folded, making it more convenient for family storage and travel. For example, it can easily fit into the small space of a car trunk, enhancing the product's practicality. Furthermore, this embodiment uses high-strength iron rivets to connect key stress-bearing parts of the frame, strengthening the stability of the connections between components and avoiding the problem of loosening of the folding mechanism's connectors in existing strollers after long-term use, which could affect the overall structural stability of the stroller and create safety hazards.

[0051] Furthermore, in this embodiment, the mounting bracket 110 of the frame body 100 is also provided with extension components 120 on both sides of the stroller. The extension components 120 mainly include an upper extension 122 and a lower extension 124 that are detachable from each other. The upper extension 122 has a snap-fit ​​plug, and a locking block is provided below the snap-fit. The lower extension 124 has a slot adapted to the snap-fit ​​plug and a locking interface adapted to the locking block, thus allowing for easy installation and removal of the upper extension 122 and the lower extension 124. The lower extension 124 is connected to the crossbars on both sides of the mounting bracket 110, and additional stroller accessories such as guardrails can be installed on the upper extension 122. Additionally, a first U-shaped support frame 130 is provided on the side of the mounting bracket 110 located at the front of the stroller. The two ends of the first U-shaped support frame 130 are inserted into two slots on the mounting bracket 110, maintaining a vertical position, for installing a sunshade (not shown in the figure). On the mounting frame 110, below the crossbars on both sides of the stroller, there are sliding rods 150 parallel to the crossbars. Sliding seats 170 are slidably mounted on both sides of the sliding rods 150. One end of the sliding seat 170 has a sleeve that slides onto the sliding rod 150, and the other end of the sliding seat 170 has a socket. A second U-shaped support frame 140 is horizontally positioned, with both ends inserted into the sockets of the sliding seats 170. Thus, when the sliding seats 170 slide, the second U-shaped support frame 140 can be extended outwards to serve as a traction component at the front of the stroller. Simultaneously, a storage rack 160 is also provided on the rear side of the mounting frame 110. The storage rack 160 is roughly rectangular in shape, and a diaper or basket can be placed in the middle of the storage rack 160 for storing small baby items such as diapers and bottles. Furthermore, the storage rack 160 and the crossbar of the mounting frame 110 are connected by a fifth mounting seat 162. The fifth mounting seat 162 mainly consists of two interlocking annular buckles. One annular buckle of the fifth mounting seat 162 is engaged with the crossbar of the mounting frame 110, and the other annular buckle of the fifth mounting seat 162 is engaged with the edge of the storage rack 160. A hinge shaft is provided in the middle of the fifth mounting seat 162, allowing the storage rack 160 to rotate relative to the mounting frame 110. Thus, the storage rack 160 can be detached from the frame body 100 by removing the annular buckles, or it can be rotated to fold inward when the stroller is closed, providing a variety of adjustment options.

[0052] Furthermore, in the moving mechanism 200 of this embodiment, the moving component located below the two first apex connectors 250 on both sides of the first mounting rod 210 at the front of the stroller is the first moving component. The first moving component mainly includes guide wheels 280. The top of the guide wheels 280 is rotatably connected to the bottom of the first apex connectors 250 via a pivot, thereby facilitating the operator's steering operation while pushing the stroller. The moving component located below the two second apex connectors 260 on both sides of the third mounting rod 230 at the rear of the stroller is the second moving component. The second moving component mainly includes rollers 290. The diameter of the rollers 290 is larger than the diameter of the guide wheels 280, which is used to improve the stability and safety of the stroller during movement. At the same time, the two rollers 290 are coaxially connected by a rotating connecting rod 292, and an arc-shaped foot pedal 294 is provided in the middle of the rotating connecting rod 292. The area near both ends of the arc surface of the foot pedal 294 is provided with anti-slip texture, which is used by the operator to stop the stroller by stepping on it during use. Furthermore, two U-shaped connecting frames 270 are provided between the middle of the second mounting rod 220 and the fourth mounting rod 240; by providing the U-shaped connecting frames 270, the frame structure strength of the moving mechanism is improved, making it more robust and durable; in addition, a diaper or shelf can be provided on the U-shaped connecting frames 270 for placing small baby supplies.

[0053] Furthermore, in this embodiment, a locking buckle 312 is provided on the second folding component of the folding mechanism 300, on the first movable rod 310, and at a position that abuts against the third movable rod 330 when the stroller is unfolded; and a locking groove 334 is provided on the third movable rod 330, and at a position that abuts against the first movable rod 310 when the stroller is unfolded, wherein the locking buckle 312 and the locking groove 334 are adapted to each other. Furthermore, in this embodiment, an extension sleeve 338 is provided on the third movable rod 330 of the folding mechanism 300, located at one end of the connecting mounting bracket 110. The handle 380, which is used by the operator to push the stroller, is roughly U-shaped, with both ends inserted into the extension sleeves 338 on both sides. Thus, when the stroller is unfolded, the handle 380 is positioned near the rear end of the stroller, making it convenient for the operator to use. When the stroller is folded, the handle 380 can rotate and fold synchronously with the third movable rod 330. During the unfolding process, since the handle 380 can be used as an extension arm of the third movable rod 330, the folding mechanism 300 can be deformed by operating the longer handle 380, which is more labor-saving and easier for elderly and female users to operate. As shown in Figure 5, the locking buckle 312 has a notch, and a movable positioning member 335 that can extend into the notch is slidably disposed in the locking groove 334. A linkage button 382 is provided on the handlebar 380, at the end furthest from the third movable rod 330. The linkage button 382 is connected to the movable positioning member 335 via a steel cable disposed within the internal cavity of the handlebar 380 and the third movable rod 330. When folding is required, pressing the linkage button 382 will cause the movable positioning member 335 to disengage from the notch, unlocking the locking buckle 312 from the locking groove 334, thus allowing the stroller to fold. Furthermore, in this embodiment, a sliding lock 383 is also provided on the handlebar 380, on the side opposite to the linkage button 382. Moving the sliding lock 383 can lock the linkage button 382, ​​preventing it from being pressed, thereby preventing the user from accidentally pressing the linkage button 382 while pushing the stroller.

[0054] Alternatively, in one or more other embodiments, the length of the linkage rod 370 can be changed, and the hinge hole at one end of the linkage rod 370 can be connected to the hinge hole provided in the middle of the side of the second U-shaped movable member 340 of the first folding assembly through a rivet, so that one end of the linkage rod 370 is hinged to the first folding assembly. In one or more other embodiments, the linkage button 382 and the movable positioning member 335 can also be connected using other connecting parts instead of a steel cable.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding stroller, characterized in that, Includes: a frame body (100) having at least a mounting frame (110); a moving mechanism (200) having at least one mounting frame with a moving component disposed below the mounting frame; a folding mechanism (300) disposed between the mounting frame (110) and the mounting frame, the folding mechanism (300) having at least a first folding component disposed at the front end of the folding stroller and two second folding components on both sides; wherein the first folding component has at least a first U-shaped movable member (390) and a second U-shaped movable member (340) hinged to each other, the first U-shaped movable member (390) and the second U-shaped movable member (340) being hinged to the mounting frame (110) and the mounting frame respectively; the second folding component has at least one end connected to... The first movable rod (310) is hinged to the mounting frame, the second movable rod (320) is hinged to the mounting frame at one end, and the third movable rod (330) is hinged to the mounting bracket (110) at one end. The other end of the third movable rod (330) is hinged to the other end of the second movable rod (320), and the middle part of the third movable rod (330) is hinged to the other end of the first movable rod (310). A linkage rod (370) is provided between the first folding assembly and the second folding assembly so that the first folding assembly can drive the folding stroller to fold or unfold when it rotates. When the folding stroller is unfolded, the third movable rod (330) can abut against the bottom of the first movable rod (310).

2. The folding stroller as described in claim 1, characterized in that, The mounting frame (110) is provided with extension components (120) on both sides of the folding stroller; the extension components (120) have at least an upper extension (122) and a lower extension (124); the upper extension (122) is provided with a plug with a snap, and a locking block is provided below the snap; the lower extension (124) is connected to the crossbars on both sides of the mounting frame (110), and the lower extension (124) is provided with a slot adapted to the plug and a card interface adapted to the locking block.

3. The folding stroller as described in claim 1, characterized in that, The mounting bracket (110) is provided with a first U-shaped support bracket (130), and the two ends of the first U-shaped support bracket (130) are respectively inserted into two slots provided on the mounting bracket (110).

4. The folding stroller as described in claim 1, characterized in that, The mounting bracket (110) has a sliding rod (150) parallel to the horizontal bar on both sides below it. A sliding seat (170) is slidably sleeved on the sliding rod (150), and a second U-shaped support frame (140) is provided on the sliding seat (170).

5. The folding stroller as described in claim 1, characterized in that, A shelf (160) is provided on one side of the mounting frame (110). The shelf (160) is connected to the crossbar of the mounting frame (110) via a fifth mounting seat (162). A buckle on one side of the fifth mounting seat (162) is engaged with the crossbar of the mounting frame (110), and a buckle on the other side of the fifth mounting seat (162) is engaged with the edge of the shelf (160). A hinge shaft is provided in the middle of the fifth mounting seat (162).

6. The folding stroller as described in claim 1, characterized in that, The mounting frame has at least a first mounting rod (210) located in front of the folding stroller and a third mounting rod (230) located behind the folding stroller; both ends of the first mounting rod (210) are provided with a first apex connector (250), and both ends of the third mounting rod (230) are provided with a second apex connector (260); a second mounting rod (220) and a fourth mounting rod (240) are respectively connected between the first apex connector (250) and the second apex connector (260) on both sides.

7. The folding stroller as described in claim 6, characterized in that, The moving component includes a first moving component disposed below two first apex connectors (250), the first moving component having at least a guide wheel (280), the guide wheel (280) being rotatably connected to the bottom of the first apex connector (250) via a rotating shaft; the moving component also includes a second moving component disposed below two second apex connectors (260), the second moving component having at least a roller (290), the diameter of the roller (290) being larger than the diameter of the guide wheel (280), the two rollers (290) being coaxially connected by a rotating connecting rod (292), and a foot pedal (294) being disposed in the middle of the rotating connecting rod (292), the area near both ends of the arc surface of the foot pedal (294) being provided with anti-slip texture.

8. The folding stroller as described in claim 1, characterized in that, The first U-shaped movable component (390) has a third mounting seat (392) rotatably fitted at its U-shaped bottom, and the other end of the third mounting seat (392) is fastened to the crossbar of the mounting frame (110) by a ring buckle; the second U-shaped movable component (340) has a fourth mounting seat (342) rotatably fitted at its U-shaped bottom, and the other end of the fourth mounting seat (342) is fastened to the mounting frame by a ring buckle; and the two ends of the first U-shaped movable component (390) and the second U-shaped movable component (340) are respectively connected by a first movable joint (350) and a second movable joint (360). The three movable rods (330) are hinged to each other; and the middle part of the third movable rod (330) is provided with a hinge seat (332), and the hinge seat (332) is provided with two opposing hinge holes on both sides. The two hinge holes are rotatably connected to the other end of the first movable rod (310) through a hinge shaft; both ends of the linkage rod (370) are provided with hinge holes, and the hinge hole at one end is connected to the hinge hole in the middle part of the first U-shaped movable part (390) through a rivet; the hinge hole at the other end of the linkage rod (370) is connected to the hinge hole in the middle part of the first movable rod (310) through a rivet.

9. The folding stroller as described in claim 1, characterized in that, A locking buckle (312) is provided on the first movable rod (310) at a position where it abuts against the third movable rod (330) in the unfolded state; and a locking groove (334) is provided on the third movable rod (330) at a position where it abuts against the first movable rod (310) in the unfolded state; the locking buckle (312) and the locking groove (334) are adapted to each other.

10. The folding stroller as described in claim 9, characterized in that, An extension sleeve (338) is provided on the third movable rod (330) and located at one end of the connecting mounting bracket (110). Both ends of the handrail (380) are inserted into the extension sleeves (338) on both sides. A notch is provided on the locking buckle (312), and a movable positioning member (335) that can extend into the notch is slidably provided in the locking groove (334). A linkage button (382) is provided on the handrail (380). The linkage button (382) is connected to the movable positioning member (335) through a connecting component provided in the internal cavity of the handrail (380) and the third movable rod (330). When it is necessary to close, pressing the linkage button (382) can drive the movable positioning member (335) to disengage from the notch.

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