Folding baby carriage

Abstract

The utility model discloses a folding baby carriage which comprises a carriage body, a seat assembly and a linkage folding frame. The vehicle body comprises a front foot stool, a rear foot stool and a first push frame, one end of the front foot stool is rotatably connected with one end of the rear foot stool, and one end of the first push frame is rotatably connected with one end of the rear foot stool; the seat assembly comprises a seat cushion frame and a backrest frame, and the seat cushion frame is arranged on the vehicle body; the linkage folding frame is arranged between the seat assembly and the vehicle body; wherein one end of the backrest frame is rotatably arranged on the linkage folding frame, an angle locking mechanism is arranged between the backrest frame and the linkage folding frame, the angle locking mechanism is used for locking or unlocking the angle position between the backrest frame and the linkage folding frame, and the folding baby carriage has an unfolded state and a folded state. When the folding baby carriage is switched from the unfolded state to the folded state, the front foot frame, the first push frame and the rear foot frame can rotate and draw close, and the backrest frame is driven by the linkage folding frame to rotate and fold relative to the cushion frame.

Description

Technical Field

[0001] The utility model relates to the field of infant and child products, in particular to a folding baby carriage. Background Art

[0002] Some existing folding baby strollers include a body and a seat assembly arranged on the body, wherein the body includes a front leg frame, a rear leg frame and a first push frame, and the seat assembly includes a cushion frame and a backrest frame. In order to facilitate transportation and storage, the front leg frame, the rear leg frame and the first push frame of the body can be rotated, brought together and folded, and the backrest frame can also be rotated and folded relative to the cushion frame, and a linkage folding frame is arranged between the body and the seat assembly, and the seat assembly is driven to fold synchronously through the linkage folding frame when the body is folded. However, in this type of folding baby stroller, since the linkage folding frame directly links the folding and unfolding of the body and the seat assembly, when the folding baby stroller is unfolded, the backrest frame can only be fixed in angle relative to the cushion frame, which cannot meet the needs of different body postures of the baby. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a folding baby stroller, on the basis of the body and the seat assembly being able to be folded in a linked manner, so that the backrest frame can independently adjust the angle position relative to the cushion frame.

[0004] According to an embodiment of the utility model, the folding baby stroller comprises a body, a seat assembly and a linkage folding frame. The body comprises a front leg frame, a rear leg frame and a first push frame, one end of the front leg frame is rotatably connected to one end of the rear leg frame, and one end of the first push frame is rotatably connected to the one end of the rear leg frame; the seat assembly comprises a cushion frame and a backrest frame, the cushion frame is arranged on the body; the linkage folding frame is arranged between the seat assembly and the body; wherein the one end of the backrest frame is rotatably arranged on the linkage folding frame, an angle locking mechanism is arranged between the backrest frame and the linkage folding frame, and the angle locking mechanism is used to lock or unlock the angle position between the backrest frame and the linkage folding frame, the folding baby stroller has an unfolded state and a folded state, and when the folding baby stroller switches from the unfolded state to the folded state, the front leg frame, the first push frame and the rear leg frame can rotate close together, and drive the backrest frame to rotate and fold relative to the cushion frame through the linkage folding frame.

[0005] The folding baby stroller according to the embodiment of the utility model has at least the following beneficial effects: the angle locking mechanism is usually in a state of locking the angle position of the backrest frame. When the folding baby stroller is in the unfolded state and the angle of the backrest frame needs to be adjusted, the angle locking mechanism unlocks the rotation of the backrest frame, so that the backrest frame can be independently rotated relative to the seat cushion frame to adjust the angle position to meet the needs of different body postures of the baby, and then the angle locking mechanism re-locks the backrest frame; when the folding baby stroller is switched from the unfolded state to the folded state, the front leg frame, the rear leg frame and the first push frame of the vehicle body are rotated, retracted and folded, and at the same time, the backrest frame is driven to rotate and fold relative to the seat cushion frame through the linkage of the folding frame and the angle locking mechanism.

[0006] According to some embodiments of the utility model, a tripod link assembly is further included, wherein the tripod link assembly includes a front link and a rear link, one end of the front link is rotatably connected to one end of the rear link, the other end of the front link is rotatably connected to the front tripod, and the other end of the rear link is rotatably connected to the rear tripod.

[0007] According to some embodiments of the utility model, the linked folding frame includes an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is rotatably connected to one end of the lower connecting rod, the other end of the upper connecting rod is rotatably connected to the first pushing frame, the lower connecting rod is rotatably connected to the rear leg frame, the backrest frame is rotatably connected to the lower connecting rod, and the angle locking mechanism is fixedly arranged on the lower connecting rod.

[0008] According to some embodiments of the utility model, a tripod link assembly is also included, wherein the tripod link assembly includes a front link and a rear link, one end of the front link is rotatably connected to one end of the rear link, the other end of the front link is rotatably connected to the front tripod, and the other end of the rear link is rotatably connected to the rear tripod, and the tripod link assembly and the linked folding frame can be linked to each other when folded.

[0009] According to some embodiments of the utility model, the linkage folding frame also includes a guide member, which is slidably connected to the rear connecting rod and can slide along the length direction of the rear connecting rod, and the guide member is rotationally connected to the other end of the lower connecting rod.

[0010] According to some embodiments of the utility model, the angle locking mechanism includes a locking member, a locking driver and at least two gear slots arranged around the rotation axis of the backrest frame, the gear slot is arranged on the lower connecting rod, the locking member is telescopically arranged on the backrest frame and can be inserted into or removed from the gear slot, and the locking driver can drive the locking member to insert or remove from the gear slot.

[0011] According to some embodiments of the utility model, the gear slot is provided with a first side wall and a second side wall, and when the back frame is subjected to an external force along a first rotation direction, the first side wall of the gear slot can push the locking member out of the current gear slot and cause the back frame to rotate until the locking member is inserted into the next gear slot; when the back frame is subjected to an external force along a second rotation direction, the second side wall abuts against the locking member and limits the rotation of the back frame, the first rotation direction is the rotation direction of the back frame approaching the seat cushion frame, and the second rotation direction is opposite to the first rotation direction.

[0012] According to some embodiments of the utility model, the seat assembly also includes a front support rod, the rear end of the seat cushion frame is rotatably connected to the one end of the upper connecting rod, one end of the front support rod is rotatably connected to the front end of the seat cushion frame, and the other end of the front support rod is rotatably connected to the front leg frame.

[0013] According to some embodiments of the present invention, the first push frame includes an upper frame and a lower frame, one end of the lower frame is rotatably connected to one end of the upper frame, and when the folding baby stroller is in the unfolded state, the upper frame is unfolded relative to the lower frame; when the folding baby stroller switches from the unfolded state to the folded state, the upper frame rotates closer relative to the lower frame.

[0014] According to some embodiments of the present invention, the vehicle body further comprises a second push frame, and the second push frame can be rotated relative to the seat assembly to a position where the seat assembly faces toward or faces away from the second push frame.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of the foldable baby stroller in the unfolded state according to the embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the foldable baby stroller in the folded state according to the embodiment of the utility model;

[0019] Figure 3 For the utility model embodiment Figure 1 A local enlarged schematic diagram of point A;

[0020] Figure 4It is an exploded schematic diagram of a part of the structure of the linkage folding frame and the angle locking mechanism of an embodiment of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of a linkage folding frame and a backrest frame of other embodiments of the utility model;

[0022] Figure 6 Schematic diagram of a foldable baby stroller in an unfolded state according to some other embodiments of the present invention.

[0023] Reference numerals:

[0024] Vehicle body 100, front tripod 110, rear tripod 120, first push frame 130, upper frame 131, lower frame 132, second push frame 140;

[0025] Seat assembly 200, cushion frame 210, backrest frame 220, front support rod 230;

[0026] Linkage folding frame 300, upper connecting rod 310, lower connecting rod 320, guide member 330;

[0027] Angle locking mechanism 400, locking member 410, locking driver 420, spring 421, pull rope 422, handle 423, gear slot 430, first side wall 431, second side wall 432;

[0028] Tripod link assembly 500 , front link 510 , rear link 520 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] When an adult takes a baby out, he or she can usually carry the baby on his or her back with a sling or a folding baby carriage. Some existing folding baby carriages include a body 100 and a seat assembly 200 arranged on the body 100. The body 100 includes a front leg frame 110, a rear leg frame 120 and a first push frame 130. The seat assembly 200 includes a cushion frame 210 and a backrest frame 220. In order to facilitate transportation and storage, the front leg frame 110, the rear leg frame 120 and the first push frame 130 of the body 100 can be rotated, brought together and folded, and the backrest frame 220 can also be rotated and folded relative to the cushion frame 210. A linkage folding frame 300 is arranged between the body 100 and the seat assembly 200. When the body 100 is folded, the linkage folding frame 300 drives the seat assembly 200 to fold synchronously. However, in this folding baby stroller, since the linkage folding frame 300 directly links the folding and unfolding of the body 100 and the seat assembly 200, when the folding baby stroller is unfolded, the backrest frame 220 can only be fixed in angle relative to the cushion frame 210, which cannot meet the needs of different body postures of the baby.

[0034] There are also some existing folding baby strollers, in which the body 100 and the seat assembly 200 can be folded separately to reduce storage and transportation space, and the backrest frame 220 of the seat assembly 200 can adjust the tilt angle relative to the cushion frame 210. However, in this type of folding baby stroller, the body 100 and the seat assembly 200 need to be folded separately and independently, and the folding of the body 100 and the seat assembly 200 cannot be linked, the folding method is not convenient, and the folding efficiency is insufficient.

[0035] Reference Figures 1 to 6, is a folding baby stroller of an embodiment of the utility model, comprising a body 100, a seat assembly 200 and a linkage folding frame 300. The body 100 comprises a front leg frame 110, a rear leg frame 120 and a first push frame 130, one end of the front leg frame 110 is rotatably connected to one end of the rear leg frame 120, and one end of the first push frame 130 is rotatably connected to one end of the rear leg frame 120; the seat assembly 200 comprises a cushion frame 210 and a backrest frame 220, and the cushion frame 210 is arranged on the body 100; the linkage folding frame 300 is arranged between the seat assembly 200 and the body 100; wherein one end of the backrest frame 220 is rotatably arranged on the linkage folding frame 30 0, an angle locking mechanism 400 is provided between the backrest frame 220 and the linkage folding frame 300, and the angle locking mechanism 400 is used to lock or unlock the angle position between the backrest frame 220 and the linkage folding frame 300. The folding baby stroller has an unfolded state and a folded state. When the folding baby stroller is switched from the unfolded state to the folded state, the front leg frame 110, the first push frame 130 and the rear leg frame 120 can rotate close together, and drive the backrest frame 220 to rotate and fold relative to the cushion frame 210 through the linkage folding frame 300.

[0036] The angle locking mechanism 400 is usually in a state of locking the angle position of the backrest frame 220. When the folding baby stroller is in the unfolded state and the angle of the backrest frame 220 needs to be adjusted, the angle locking mechanism 400 unlocks the rotation of the backrest frame 220, so that the backrest frame 220 can be independently rotated relative to the seat cushion frame 210 to adjust the angle position to meet the needs of different body postures of the baby. Then the angle locking mechanism 400 re-locks the backrest frame 220; when the folding baby stroller switches from the unfolded state to the folded state, the front leg frame 110, the rear leg frame 120 and the first push frame 130 of the body 100 are rotated, retracted and folded, and at the same time, the backrest frame 220 is driven to rotate and fold relative to the seat cushion frame 210 through the linkage folding frame 300 and the angle locking mechanism 400.

[0037] It can be understood that due to the presence of the linked folding frame 300, when the folding baby stroller switches from a folded state to an unfolded state, the rotation and unfolding of the front leg frame 110, the rear leg frame 120 and the first push frame 130 will link and drive the backrest frame 220 to rotate to the unfolded position relative to the seat cushion frame 210, making the folding or unfolding of the folding baby stroller relatively convenient.

[0038] Specifically, the front leg frame 110, the rear leg frame 120 and the first push frame 130 can be made of metal materials to improve the structural strength and load-bearing capacity of the vehicle body 100; of course, the front leg frame 110, the rear leg frame 120 and the first push frame 130 can also be made of plastic materials to make the vehicle body 100 relatively light and easy to move.

[0039] Specifically, the seat cushion frame 210 and the backrest frame 220 can be made of metal materials to improve the structural strength and load-bearing capacity of the seat assembly 200; of course, the seat cushion frame 210 and the backrest frame 220 can also be made of plastic materials to make the seat assembly 200 relatively light and reduce the overall weight of the folding stroller.

[0040] In the embodiment, a tripod link assembly 500 is also included, and the tripod link assembly 500 includes a front link 510 and a rear link 520, one end of the front link 510 is rotatably connected to one end of the rear link 520, the other end of the front link 510 is rotatably connected to the front tripod 110, and the other end of the rear link 520 is rotatably connected to the rear tripod 120. The front connecting rod 510, the rear connecting rod 520, the front tripod 110 and the rear tripod 120 form a four-link structure. The rotation of the front tripod 110 and the rear tripod 120 can be linked to each other. When the front tripod 110 rotates close to the rear tripod 120, the tripod connecting rod assembly 500 can drive the rear tripod 120 to rotate close to the front tripod 110. Similarly, when unfolding, the front tripod 110 can be unfolded away from each other through the tripod connecting rod assembly 500 to link the rear tripod 120, thereby improving the folding and unfolding efficiency of the folding baby stroller and facilitating the folding and unfolding process of the folding baby stroller; and in the unfolded state, the tripod connecting rod assembly 500 can also fix the angular position of the front tripod 110 and the rear tripod 120 to improve the structural stability of the unfolded state of the folding baby stroller.

[0041] In the embodiment, the linkage folding frame 300 includes an upper connecting rod 310 and a lower connecting rod 320, one end of the upper connecting rod 310 is rotatably connected to one end of the lower connecting rod 320, the other end of the upper connecting rod 310 is rotatably connected to the first push frame 130, the lower connecting rod 320 is rotatably connected to the rear leg frame 120, the backrest frame 220 is rotatably connected to the lower connecting rod 320, and the angle locking mechanism 400 is fixedly arranged on the lower connecting rod 320. When the folding baby carriage is in the unfolded state, the angle position of the backrest frame 220 relative to the lower connecting rod 320 can be adjusted by unlocking the angle locking mechanism 400, that is, adjusting the angle position of the backrest frame 220 relative to the cushion frame 210, and then re-locking the backrest frame 220, so as to meet the body posture requirements of the baby, and the baby's waist and back can be supported at various tilt angles. When the folding baby stroller is switched to the folding state, the first push frame 130 and the rear leg frame 120 rotate together, so that the lower connecting rod 320 and the upper connecting rod 310 both rotate together, and the first push frame 130, the rear leg frame 120, the upper connecting rod 310 and the lower connecting rod 320 are relatively flat after being folded. During this period, the lower connecting rod 320 drives the backrest frame 220 to rotate and flatten through the angle locking mechanism 400, thereby realizing the folding of the seat assembly 200 by the folding of the vehicle body 100, and the backrest frame 220 can be locked or adjusted in angle relative to the linkage folding frame 300. The structure is simple and easy to implement.

[0042] Specifically, when the folding baby carriage is in the unfolded state, the upper connecting rod 310 and the lower connecting rod 320 are both arranged substantially in the vertical direction; when the folding baby carriage is in the folded state, the upper connecting rod 310 and the lower connecting rod 320 are both arranged substantially in the horizontal direction.

[0043] In the embodiment, a tripod link assembly 500 is further included, and the tripod link assembly 500 includes a front link 510 and a rear link 520, one end of the front link 510 is rotatably connected to one end of the rear link 520, the other end of the front link 510 is rotatably connected to the front leg 110, and the other end of the rear link 520 is rotatably connected to the rear leg 120, and the tripod link assembly 500 and the linkage folding frame 300 can be mutually linked when folding. In the above structure, the rotation of the tripod link assembly 500 is mutually linked with the rotation of the linkage folding frame 300, so that the rotation of the first push frame 130, the front leg 110 and the rear leg 120 are mutually linked, further simplifying the folding and unfolding process of the folding baby stroller, and enabling the tripod link assembly 500 and the linkage folding frame 300 to maintain the position of each other in the unfolded position, thereby improving the structural stability of the folding baby stroller.

[0044] In this embodiment, the linkage folding frame 300 further includes a guide member 330, which is slidably connected to the rear link 520 and can slide along the length direction of the rear link 520, and the guide member 330 is rotatably connected to the other end of the lower link 320. Through the sliding of the guide member 330, the rotation of the lower link 320 and the rear link 520 is linked, and when the folding baby stroller is in the unfolded state, the position of the linkage folding frame 300 and the footrest link assembly 500 is more stable, the structure is simple, and it is easy to implement.

[0045] Specifically, the guide member 330 is a sleeve, which is slidably mounted on the rear connecting rod 520, so that the guide member 330 can slide along the length direction of the rear connecting rod 520. It is conceivable that the guide member 330 can also be a slider, the rear connecting rod 520 is provided with a slide rail groove, the slider is slidably connected to the slide rail groove, and the other end of the lower connecting rod 320 is rotatably connected to the slider.

[0046] It is conceivable that the linkage folding frame 300 can also be linked with the tripod link assembly 500 through other structures. For example, the rear link 520 and the lower link 320 can also be made into an integral part, so that the rear link 520 and the lower link 320 rotate synchronously; or the linkage folding frame 300 also includes a connecting rod, one end of the connecting rod is rotatably connected to the other end of the lower link 320, and the other end of the connecting rod is rotatably connected to the middle part of the rear link 520; or the first pushing frame 130 is rotatably connected to the middle part of the rear link 520 through the connecting frame, and one end of the first pushing frame 130 is an integral part with the connecting frame, and the tripod link assembly 500 and the linkage folding frame 300 are indirectly linked through the first pushing frame 130 and the connecting frame.

[0047] In the embodiment, the angle locking mechanism 400 includes a locking member 410, a locking driver 420, and at least two gear slots 430 arranged around the rotation axis of the backrest frame 220. The gear slot 430 is provided on the lower connecting rod 320. The locking member 410 is telescopically provided on the backrest frame 220 and can be inserted into or removed from the gear slot 430. The locking driver 420 can drive the locking member 410 to be inserted into or removed from the gear slot 430. In normal use, the locking driver 420 keeps the locking member 410 inserted into a certain gear slot 430. When the gear of the backrest frame 220 needs to be adjusted, the locking member 410 can be driven to be removed from the gear slot 430 by the locking driver 420, and then the user can rotate the backrest frame 220 to other gears. Finally, the locking driver 420 drives the locking member 410 to be reinserted into another gear slot 430 to complete the gear adjustment of the backrest frame 220. The above structure can adjust the tilt angle of the backrest frame 220 relative to the cushion frame 210 when unlocked, and the linkage folding frame 300 can drive the backrest frame 220 to rotate together when locked. The structure is ingenious and relatively convenient to use.

[0048] Specifically, the angle locking mechanism 400 may be provided with two, three, four or more gear slots 430 , and those skilled in the art may configure the gear slots 430 according to actual needs.

[0049] In an embodiment, the gear slot 430 is provided with a first side wall 431 and a second side wall 432. When the back frame 220 is subjected to an external force along a first rotation direction, the first side wall 431 of the gear slot 430 can push the locking member 410 out of the current gear slot 430 and rotate the back frame 220 until the locking member 410 is inserted into the next gear slot 430; when the back frame 220 is subjected to an external force along a second rotation direction, the second side wall 432 abuts against the locking member 410 and limits the rotation of the back frame 220. The first rotation direction is the rotation direction of the back frame 220 approaching the cushion frame 210, and the second rotation direction is opposite to the first rotation direction. The above-mentioned gear slot 430 can make the locking member 410 automatically leave the current gear slot 430 and enter the next gear slot 430 when the back frame 220 is subjected to a large external force along the first rotation direction without using the locking driver 420. During continuous operation, it is convenient for the user to quickly and quickly rotate the back frame 220 along the first rotation direction to straighten it; however, the back frame 220 cannot be directly rotated along the second rotation direction, and the locking member 410 needs to be pulled out using the locking driver 420 before the back frame 220 can be rotated, thereby firmly supporting the baby's back.

[0050] Specifically, in some embodiments, the locking member 410 is a bayonet, and the locking driver 420 includes a spring 421, a pull rope 422, and a handle 423. The handle 423 is connected to the bayonet through the pull rope 422. The spring 421 is disposed between the bayonet and the backrest frame 220 and is used to push the bayonet into the gear slot 430. When the handle 423 is not pulled, the spring 421 drives the bayonet to insert into the gear slot 430, locking the position of the backrest frame 220; when the handle 423 is moved, the handle 423 pulls the bayonet out of the gear slot 430 through the pull rope 422, so that the backrest frame 220 can be freely rotated to adjust the angle, and then the handle 423 is released and the bayonet is driven by the spring 421 to reinsert into the gear slot 430, re-locking the angle position of the backrest frame 220.

[0051] Specifically, in some embodiments, the latch is also provided with an inclined surface matching the first side wall 431 , so that when the backrest frame 220 is straightened, the latch is pushed out of the current gear slot 430 by the first side wall 431 .

[0052] In some embodiments, the angle locking mechanism 400 includes a locking seat, the gear slot 430 is disposed on the locking seat, and the locking seat is fixedly connected to the lower connecting rod 320, that is, the locking seat can be fixed to the lower connecting rod 320 by welding, riveting or screw locking. It is conceivable that in other embodiments, the locking seat can also be an integral part with the lower connecting rod 320 to reduce the number of parts of the folding stroller, and those skilled in the art can make specific configurations according to actual needs.

[0053] It is conceivable that the locking member 410 can also be a hook body, which is rotatably arranged on the back frame 220, and the lower connecting rod 320 is provided with two, three, four or more gear holes, and the hook body can be rotated to get in or out of a gear hole to lock or unlock the rotation of the back frame 220; in this case, the locking driver 420 can adopt a torsion spring and a handle, and the torsion spring applies a force to make the hook body rotate and get into the gear hole, and the handle is connected to the hook body. When the user pulls the hook body, the hook body can be disengaged from the gear, thereby locking or unlocking the angular position of the back frame 220.

[0054] It is conceivable that the angle locking mechanism 400 can also be other structures. For example, the angle locking mechanism 400 includes a friction block, a spring 421, a pull rope 422 and a handle 423. The lower connecting rod 320 is provided with a friction disk. During normal use, the spring 421 pushes the friction block to abut against the friction disk, and locks the angle position of the back frame 220 by friction force; when the angle position of the back frame 220 needs to be adjusted, the handle 423 is used to pull the friction block away from the friction disk through the pull rope 422. At this time, the back frame 220 can adjust the angle, and then the spring 421 drives the friction block to abut against the friction disk again, and re-locks the angle position of the back frame 220; or the angle locking mechanism 400 can adopt other structures. There are many types of structures of the angle locking mechanism 400, and technicians in this field can make specific configurations according to actual needs.

[0055] Specifically, the pull rope 422 can be a rope made of metal material, such as a steel wire rope, a cable, etc., or a plastic twisted rope with higher strength. Those skilled in the art can configure it according to actual needs.

[0056] Specifically, the handle 423 is disposed at one end of the back frame 220 away from the angle locking mechanism 400 . When the folding stroller is in the unfolded state, the handle 423 is located at the upper part of the back frame 220 . At this time, the user can directly pull the handle 423 to unlock the angle locking mechanism 400 .

[0057] Specifically, if the backrest frame 220 has not rotated to the last gear position along the first rotation direction when the foldable baby stroller is in the unfolded state, that is, the backrest frame 220 has not been straightened, then during the switching to the folded state, the lower connecting rod 320 drives the backrest frame 220 to rotate through the angle locking mechanism 400, during which the backrest frame 220 can contact the ground and be pushed by the ground to rotate relative to the angle locking mechanism 400 along the first rotation direction, so that the backrest frame 220 automatically rotates to the last gear position along the first rotation direction. After the foldable baby stroller is switched from the folded state to the unfolded state, the backrest frame 220 will be in the straightened position, which is convenient for normal use.

[0058] It is conceivable that in other embodiments, the angle locking mechanism 400 may also be fixedly connected to the upper connecting rod 310. When the folding baby stroller is switched to the folded state, since the upper connecting rod 310 is also folded and laid roughly flat, the angle locking mechanism 400 drives the backrest frame 220 to rotate and fold. At this time, the folded backrest frame 220 should overlap with the cushion frame 210. When the folding baby stroller is in the unfolded state, when the angle locking mechanism 400 unlocks the rotation of the backrest frame 220, the backrest frame 220 can rotate and adjust the angle relative to the upper connecting rod 310, that is, rotate and adjust the angle relative to the cushion frame 210, to achieve the same function.

[0059] In the embodiment, the seat assembly 200 further includes a front support rod 230, a rear end of the seat cushion frame 210 is rotatably connected to one end of the upper connecting rod 310, one end of the front support rod 230 is rotatably connected to the front end of the seat cushion frame 210, and the other end of the front support rod 230 is rotatably connected to the front leg frame 110. The above structure facilitates the folding of the baby stroller, and the seat cushion frame 210 can be folded relatively flat relative to the body 100 when the baby stroller is in the folded state.

[0060] In the embodiment, the first push frame 130 includes an upper frame 131 and a lower frame 132, one end of the lower frame 132 is rotatably connected to one end of the upper frame 131, and when the folding baby stroller is in the unfolded state, the upper frame 131 is unfolded relative to the lower frame 132; when the folding baby stroller switches from the unfolded state to the folded state, the upper frame 131 rotates and moves closer relative to the lower frame 132. The first push frame 130 can also be folded or unfolded, and when in use, a normal adult can directly push the first push frame 130 by hand, which is adapted to the height of a normal person, and when folded, the folded size of the folding baby stroller can be further reduced.

[0061] In some embodiments, the stroller body 100 further includes a second push frame 140, which can rotate relative to the seat assembly 200 to a position where the seat assembly 200 faces toward or faces away from the second push frame 140. The second push frame 140 can be used to push the baby stroller, so that the baby's orientation when sitting on the seat assembly 200 can be adjusted, so that the baby can face or face away from the adult, meeting different usage requirements.

[0062] Specifically, wheels are provided at the lower ends of the front leg frame 110 and the rear leg frame 120 to facilitate the movement of the foldable baby carriage.

[0063] Specifically, the rotational connection described above can be achieved by providing a rotational shaft hole in the two components and passing a pivot through the rotational shaft hole to achieve the rotational connection between the two components; or a rotational shaft can be provided in one component and a rotational shaft hole in the other component, and the rotational shaft can be passed through the rotational shaft hole to enable the two components to be rotationally connected.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A foldable baby stroller, characterized in that: include: A vehicle body (100) comprises a front tripod (110), a rear tripod (120) and a first push frame (130), one end of the front tripod (110) being rotatably connected to one end of the rear tripod (120), and one end of the first push frame (130) being rotatably connected to the one end of the rear tripod (120); A seat assembly (200) comprising a seat cushion frame (210) and a backrest frame (220), wherein the seat cushion frame (210) is arranged on the vehicle body (100); A linkage folding frame (300) is arranged between the seat assembly (200) and the vehicle body (100); Wherein, the one end of the backrest frame (220) is rotatably arranged on the linkage folding frame (300), and an angle locking mechanism (400) is arranged between the backrest frame (220) and the linkage folding frame (300), and the angle locking mechanism (400) is used to lock or unlock the angle position between the backrest frame (220) and the linkage folding frame (300). The folding baby carriage has an unfolded state and a folded state. When the folding baby carriage switches from the unfolded state to the folded state, the front leg frame (110), the first push frame (130) and the rear leg frame (120) can be rotated together, and the backrest frame (220) is driven to rotate and fold relative to the cushion frame (210) through the linkage folding frame (300).

2. The foldable baby stroller according to claim 1, characterized in that: It also includes a tripod link assembly (500), which includes a front link (510) and a rear link (520), one end of the front link (510) is rotatably connected to one end of the rear link (520), the other end of the front link (510) is rotatably connected to the front tripod (110), and the other end of the rear link (520) is rotatably connected to the rear tripod (120).

3. The foldable baby stroller according to claim 1, characterized in that: The linkage folding frame (300) comprises an upper connecting rod (310) and a lower connecting rod (320), one end of the upper connecting rod (310) is rotatably connected to one end of the lower connecting rod (320), the other end of the upper connecting rod (310) is rotatably connected to the first push frame (130), the lower connecting rod (320) is rotatably connected to the rear leg frame (120), the backrest frame (220) is rotatably connected to the lower connecting rod (320), and the angle locking mechanism (400) is fixedly arranged on the lower connecting rod (320).

4. The foldable baby stroller according to claim 3, characterized in that: It also includes a tripod connecting rod assembly (500), the tripod connecting rod assembly (500) includes a front connecting rod (510) and a rear connecting rod (520), one end of the front connecting rod (510) is rotatably connected to one end of the rear connecting rod (520), the other end of the front connecting rod (510) is rotatably connected to the front tripod (110), and the other end of the rear connecting rod (520) is rotatably connected to the rear tripod (120), and the tripod connecting rod assembly (500) and the linked folding frame (300) can be linked to each other when folded.

5. The foldable baby stroller according to claim 4, characterized in that: The linkage folding frame (300) further comprises a guide member (330), wherein the guide member (330) is slidably connected to the rear connecting rod (520) and can slide along the length direction of the rear connecting rod (520), and the guide member (330) is rotatably connected to the other end of the lower connecting rod (320).

6. The foldable baby stroller according to claim 3, characterized in that: The angle locking mechanism (400) comprises a locking member (410), a locking driver (420) and at least two gear slots (430) arranged around the rotation axis of the backrest frame (220), wherein the gear slot (430) is arranged on the lower connecting rod (320), the locking member (410) is telescopically arranged on the backrest frame (220) and can be inserted into or removed from the gear slot (430), and the locking driver (420) can drive the locking member (410) to be inserted into or removed from the gear slot (430).

7. The foldable baby stroller according to claim 6, characterized in that: The gear slot (430) is provided with a first side wall (431) and a second side wall (432). When the backrest frame (220) is subjected to an external force along a first rotation direction, the first side wall (431) of the gear slot (430) can push the locking member (410) out of the current gear slot (430) and make the backrest frame (220) rotate until the locking member (410) is inserted into the next gear slot (430); when the backrest frame (220) is subjected to an external force along a second rotation direction, the second side wall (432) abuts against the locking member (410) and limits the rotation of the backrest frame (220). The first rotation direction is the rotation direction of the backrest frame (220) approaching the cushion frame (210), and the second rotation direction is opposite to the first rotation direction.

8. The foldable baby stroller according to claim 3, characterized in that: The seat assembly (200) further comprises a front support rod (230), the rear end of the seat cushion frame (210) being rotatably connected to the one end of the upper connecting rod (310), one end of the front support rod (230) being rotatably connected to the front end of the seat cushion frame (210), and the other end of the front support rod (230) being rotatably connected to the front leg frame (110).

9. The foldable baby stroller according to claim 1, characterized in that: The first push frame (130) comprises an upper frame (131) and a lower frame (132), one end of the lower frame (132) being rotatably connected to one end of the upper frame (131); when the folding baby carriage is in the unfolded state, the upper frame (131) is unfolded relative to the lower frame (132); when the folding baby carriage switches from the unfolded state to the folded state, the upper frame (131) rotates closer relative to the lower frame (132).

10. The foldable baby stroller according to claim 9, characterized in that: The vehicle body (100) further comprises a second push frame (140), and the second push frame (140) can be rotated relative to the seat assembly (200) to a position where the seat assembly (200) faces toward or faces away from the second push frame (140).

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