Baby carriage

Abstract

A baby carriage. The baby carriage comprises rear supporting legs (3200), sliding seats (6000), a push handle (5000), first locking devices (8100), and a first operating device (8200). Each sliding seat (6000) is slidably connected to the corresponding rear supporting leg (3200) and can slide to a first position and a second position relative to the rear supporting leg (3200); when the sliding seat (6000) slides to the first position, the baby carriage is in an unfolded state, and when the sliding seat (6000) slides to the second position, the baby carriage is in a folded state. The push handle (5000) is rotatably connected to the sliding seats (6000), the push handle (5000) is suitable for rotating downwards to drive each sliding seat (6000) to slide from the first position to the second position, and the push handle (5000) is suitable for rotating upwards to drive each sliding seat (6000) to slide from the second position to the first position. Each first locking device (8100) is arranged on the corresponding rear supporting leg (3200) and is suitable for locking the corresponding sliding seat (6000) when the sliding seat (6000) slides to the first position. The first operating device (8200) is connected to the first locking devices (8100), and the first operating device (8200) is suitable for being operated to drive each first locking device (8100) to unlock the corresponding sliding seat (6000), such that the push handle (5000) can rotate downward to drive the sliding seat (6000) to slide from the first position to the second position.

Description

baby carriage

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 21, 2023, with application number 202323513251.3 and application name “Baby Carriage”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of children's vehicles, and in particular to a baby carriage. Background Art

[0004] A stroller consists of multiple interconnected components that form its frame. Generally, these components are designed to be rotatably connected to each other, allowing the stroller to switch between a folded and unfolded state. In related art, the unfolded state is maintained by restricting the relative rotation of certain components. By removing these restrictions, the stroller can be switched from the unfolded state to the folded state.

[0005] Taking the restriction of relative rotation between two parts as an example, if the two parts cannot rotate, then the remaining parts cannot rotate accordingly, so the baby stroller can maintain the unfolded state. When the restriction between the two parts is released, the two parts can rotate, which can drive the remaining parts to rotate, so that the baby stroller can switch from the unfolded state to the folded state.

[0006] Different baby strollers have different overall shapes, different numbers and positions of components, and there are also various ways to limit the rotation between components. In view of the diversity of baby strollers, this application specially proposes a new solution suitable for switching the form of baby strollers.

[0007] Application Contents

[0008] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a baby stroller.

[0009] To achieve the above objectives, the present application discloses a baby stroller, which has a folded state and an unfolded state, and comprises:

[0010] rear supporting leg;

[0011] a slide, the slide being slidably connected to the rear support leg and being slidable relative to the rear support leg to a first position and a second position, wherein when the slide slides to the first position, the stroller is in the unfolded state, and when the slide slides to the second position, the stroller is in the folded state;

[0012] a push handle, the push handle being rotatably connected to the slide, the push handle being adapted to rotate downward to drive the slide to slide from the first position to the second position, and the push handle being adapted to rotate upward to drive the slide to slide from the second position to the first position;

[0013] a first locking device provided on the rear support leg and adapted to lock the slide when the slide slides to the first position; and

[0014] A first operating device is connected to the first locking device, and the first operating device is suitable for being operated to drive the first locking device to unlock the slide, so that the push handle can be rotated downward to drive the slide to slide from the first position to the second position.

[0015] In some embodiments of the present application, the stroller comprises:

[0016] A support leg assembly, the support leg assembly comprising the rear support leg and the front support leg;

[0017] A connecting seat, the rear supporting leg and the front supporting leg are rotatably connected to the connecting seat respectively;

[0018] A bottom support assembly, the bottom support assembly is arranged below the connecting seat, the bottom support assembly includes a rear bottom support and a front bottom support that are rotatably connected, and the rear bottom support is rotatably connected to the rear support leg, and the front bottom support is rotatably connected to the front support leg;

[0019] A surrounding tube assembly, the surrounding tube assembly comprising a rear surrounding tube and a front surrounding tube, the rear surrounding tube being rotatably connected to the connecting seat and the push handle respectively, and the front surrounding tube being rotatably connected to the connecting seat;

[0020] A first connecting rod is rotatably connected to the slide seat and the rear bottom support respectively; and

[0021] a second connecting rod, rotatably connected to the front wall tube and the front support leg respectively;

[0022] When the push handle is rotated downward, the surrounding tube assembly, the bottom support assembly and the support leg assembly are folded, so that the baby carriage is in the folded state;

[0023] When the push handle is rotated upward, the surrounding tube assembly, the bottom support assembly and the support leg assembly are opened, so that the baby carriage is in the expanded state.

[0024] In some embodiments of the present application, the slide is sleeved on the rear support leg, the slide is provided with a lock hole, the first locking device includes a first lock pin and a first elastic member abutting against the first lock pin, and the first operating device is connected to the first lock pin;

[0025] When the slide seat slides to the first position, the first locking pin is engaged with the locking hole under the action of the first elastic member to lock the slide seat;

[0026] When the first operating device is operated, the first operating device drives the first locking pin to disengage from the locking hole to unlock the sliding seat.

[0027] In some embodiments of the present application, the first locking device further includes a first lock seat, the first lock pin and the first elastic member are disposed on the first lock seat, and the first lock seat is disposed inside the rear support leg.

[0028] In some embodiments of the present application, the rear support leg is provided with a stopper in the direction of the first position away from the second position, and the first locking pin has a guiding inclined surface and a stop surface;

[0029] The guide slope is adapted to contact the slide when the slide slides from the second position to the first position, so that the first lock pin is first retracted and then engaged with the lock hole, and the stopper is adapted to abut against the slide to limit the slide from sliding in a direction away from the second position from the first position;

[0030] The abutment surface is adapted to abut against the wall of the locking hole when the slide slides to the first position, so as to limit the slide from sliding from the first position toward the second position.

[0031] In some embodiments of the present application, the first operating device includes a first rope, the first rope is connected to the first locking pin, and the first rope is suitable for being pulled to drive the first locking pin to unlock the slide.

[0032] In some embodiments of the present application, the rear support legs are respectively provided on the left and right sides of the stroller, and the sliding seat and the first locking device correspond one-to-one to the rear support legs respectively;

[0033] The first operating device further includes:

[0034] a first fixing seat, the first fixing seat comprising a first seat body and a first connecting arm rotatably connected to the first seat body, the first connecting arm and the first locking pin on one side being connected via the first rope;

[0035] a second fixing seat, the second fixing seat comprising a second seat body and a second connecting arm rotatably connected to the second seat body, the second connecting arm and the first locking pin on the other side being connected via the first rope; and

[0036] A connecting belt connects the first connecting arm and the second connecting arm, and the connecting belt is suitable for being operated to drive the first connecting arm and the second connecting arm to rotate, so that the first rope is pulled.

[0037] In some embodiments of the present application, the first operating device is installed on the rear bottom support.

[0038] In some embodiments of the present application, the push handle includes a first tube segment and a second tube segment, the first tube segment and the second tube segment are telescopically connected so that the length of the push handle can be adjusted, and the second tube segment and the slide seat are rotatably connected.

[0039] In some embodiments of the present application, the push handle includes:

[0040] a second locking device, adapted to lock the first pipe segment and the second pipe segment so that the push handle is in a lengthened state; and

[0041] The second operating device is connected to the second locking device, and the second operating device is suitable for being operated to drive the second locking device to unlock the first pipe section and the second pipe section, so that the push handle can be switched from a lengthened state to a shortened state.

[0042] In some embodiments of the present application, the second locking device is provided on the first pipe section, the second locking device includes a second locking pin and a second elastic member abutting against the second locking pin, the second operating device is connected to the second locking pin, and the second pipe section is provided with a first limiting hole;

[0043] When the push handle is switched to the lengthened state, the second locking pin is engaged with the first limiting hole under the action of the second elastic member to lock the first pipe section and the second pipe section;

[0044] When the second operating device is operated, the second operating device drives the second locking pin to disengage from the first limiting hole, so as to unlock the first pipe section and the second pipe section.

[0045] In some embodiments of the present application, the second operating device includes:

[0046] A first release member configured to be movable; and

[0047] a second rope, the second rope being connected to the first release member and the second locking pin respectively;

[0048] The first release member is adapted to be operated to drive the second rope to pull the second locking pin, so that the second locking pin is disengaged from the first limiting hole.

[0049] In some embodiments of the present application, the second operating device further includes a stopper, which is configured to be movably arranged to be suitable for reaching the moving path of the first release member to limit the movement of the first release member, and leaving the moving path of the first release member to avoid the movement of the first release member.

[0050] In some embodiments of the present application, the push handle includes a first tube segment and a second tube segment, the first tube segment and the second tube segment are rotatably connected so that the length of the push handle can be adjusted, and the second tube segment and the slide seat are rotatably connected.

[0051] In some embodiments of the present application, the push handle further includes:

[0052] a third locking device, adapted to lock the first pipe segment and the second pipe segment so that the push handle is in a lengthened state; and

[0053] The third operating device is connected to the third locking device, and the third operating device is suitable for being operated to drive the third locking device to unlock the first pipe section and the second pipe section, so that the push handle can be switched from a lengthened state to a shortened state.

[0054] In some embodiments of the present application, the third locking device includes:

[0055] a first mounting seat, the first mounting seat being arranged on the first pipe section, the first mounting seat being provided with a first cavity and a first slot located in the first cavity;

[0056] a second mounting seat, the second mounting seat being rotatably connected to the first mounting seat, the second mounting seat being disposed on the second pipe section, the second mounting seat being provided with a second cavity and a second slot located in the second cavity;

[0057] a locking member and a third elastic member, wherein the third elastic member abuts against the locking member, and the locking member is adapted to move to the first cavity and the second cavity under the action of the third elastic member and be locked into the first slot and the second slot to lock the first pipe section and the second pipe section;

[0058] The third operating device includes a second releasing member, which is movably arranged on the second mounting seat. The second releasing member is suitable for being operated to drive the locking member to leave the second cavity and move into the first cavity, so that the locking member disengages from the second slot to unlock the first pipe section and the second pipe section.

[0059] The technical solution of the present application limits the sliding of the slide relative to the rear support leg through a first locking device, so that the baby stroller can be maintained in the unfolded state. When the baby stroller is switched from the unfolded state to the folded state, the first locking device is linked to the first operating device so that the first locking device unlocks the slide, and then the baby stroller can be driven to switch to the folded state by operating the push handle. When the baby stroller needs to be switched from the folded state to the unfolded state, it is only necessary to operate the push handle in the opposite direction until the slide slides to the first position and is locked by the first locking device, so that the baby stroller is switched to the unfolded state. Through the setting of the above scheme, a new structure is provided for the baby stroller to switch between the folded state and the unfolded state, which is conducive to the development of more types of baby strollers.

[0060] Other advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0062] FIG1 is a perspective view of a baby carriage (in an unfolded state) in some embodiments;

[0063] FIG2 is a left side view of the stroller (in the unfolded state) in some embodiments;

[0064] FIG3 is a left side view of the stroller in some embodiments (the process of switching from the unfolded state to the folded state);

[0065] FIG4 is a left side view of the stroller (folded state) in some embodiments;

[0066] FIG5 is a schematic diagram of the assembly of the rear support legs and the slide seat in some embodiments;

[0067] FIG6 is an enlarged view of the portion marked A in FIG5 ;

[0068] FIG7 is an exploded view of the structure shown in FIG5 ;

[0069] FIG8 is a schematic diagram of the assembly of the rear support leg and the first locking device in some embodiments;

[0070] FIG9 is a schematic diagram of the cooperation between the first locking device and the first operating device in some embodiments;

[0071] FIG10 is a schematic diagram of a push handle in some embodiments (rotatable, variable length state);

[0072] FIG11 is an exploded view of the structure shown in FIG10 ;

[0073] FIG12 is an enlarged view of the portion marked B in FIG11 ;

[0074] FIG13 is an exploded view of the structure shown in FIG10 (from a different perspective than FIG11 );

[0075] FIG14 is an enlarged view of the portion marked C in FIG13 ;

[0076] FIG15 is a schematic diagram of a push handle in some embodiments (rotatable, shortened state);

[0077] FIG16 is a schematic diagram of a push handle in some embodiments (telescopic, variable length state);

[0078] FIG17 is an enlarged view of the portion marked D in FIG16 ;

[0079] FIG18 is an exploded view of a push handle in some embodiments;

[0080] FIG19 is an enlarged view of the portion marked E in FIG18 ;

[0081] FIG20 is an exploded view of the push handle in some embodiments (the exploded portion is different from that of FIG18 );

[0082] FIG21 is an enlarged view of the portion marked F in FIG20 ;

[0083] FIG. 22 is a schematic diagram showing the cooperation between the second locking device and the second operating device in some embodiments.

[0084] Description of the accompanying figures: Connecting seat 1000, surrounding pipe assembly 2000, front surrounding pipe 2100, rear surrounding pipe 2200, supporting leg assembly 3000, front supporting leg 3100, Rear support leg 3200, first through hole 3210, bottom support assembly 4000, front bottom support 4100, rear bottom support 4200, push handle 5000, first pipe section 5100, second pipe section 5200, first limiting hole 5210, second limiting hole 5220, slide seat 6000, lock hole 6100, first connecting rod 7100, second connecting rod 7200, first locking device 8100, first locking pin 8110, guide slope 8111, stop surface 8112, first elastic member 8120, first lock seat 8130, stop block 8140, first operating device 8200, first fixed seat 8210, first seat body 8211, first connecting arm 8212, second fixed seat 8220 , second seat body 8221, second connecting arm 8222, connecting belt 8230, first rope 8240, second locking device 8300, second locking pin 8310, second elastic member 8320, second lock seat 8330, second operating device 8400, first release member 8410, inclined groove 8411, sliding needle 8420, second rope 8430, stop member 8440, third locking device 8500, first mounting seat 8510, first cavity 8511, first card slot 8512, second mounting seat 8520, second cavity 8521, second card slot 8522, stopping member 8530, third elastic member 8540, third operating device 8600, second release member 8610.

[0085] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0086] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0087] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0088] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0090] The present application proposes a baby stroller, which has a folding state and an unfolding state. As shown in Figures 1 to 4, the baby stroller includes a rear support leg 3200, a slide 6000, a push handle 5000, a first locking device 8100 and a first operating device 8200. The slide 6000 and the rear support leg 3200 are slidably connected, and the slide 6000 can slide to a first position and a second position relative to the rear support leg 3200. When the slide 6000 slides to the first position, the baby stroller is in the unfolded state, and when the slide 6000 slides to the second position, the baby stroller is in the folded state; the push handle 5000 and the slide 6000 are rotatably connected, and when the push handle 5000 is rotated downward, the baby stroller can be folded. To drive the slide 6000 to slide from the first position to the second position, when the push handle 5000 is rotated upward, it can drive the slide 6000 to slide from the second position to the first position; the first locking device 8100 is set on the rear support leg 3200, when the slide 6000 slides to the first position, the first locking device 8100 locks the slide 6000; the first operating device 8200 is connected to the first locking device 8100, when the first operating device 8200 is operated, the first operating device 8200 can drive the first locking device 8100 to unlock the slide 6000, so that the push handle 5000 can be rotated downward to drive the slide 6000 to slide from the first position to the second position.

[0091] Specifically, the baby stroller has an unfolded state and a folded state. When the baby stroller is in the unfolded state, the baby can sit on it. When the baby stroller is in the folded state, it can be stored to save space. The overall outline of the baby stroller is composed of various connected components. The relative rotation of these components can switch the unfolded state and the folded state of the baby stroller. These components include the rear support legs 3200, the slide 6000 and the push handle 5000. By constraining and releasing the constraints of the rear support legs 3200, the slide 6000 and the push handle 5000, the baby can switch between the unfolded state and the folded state.

[0092] The baby stroller includes a front support leg 3100 and a rear support leg 3200, and the baby stroller is supported on the ground by the front support leg 3100 and the rear support leg 3200. Generally speaking, the front support leg 3100 and the rear support leg 3200 are respectively provided with wheels, which makes it convenient to push and pull the baby stroller.

[0093] Pushing and pulling the stroller can be achieved by the push handle 5000. The push handle 5000 is used for the user to hold. The user applies force to the push handle 5000 to drive the stroller to move on the ground. As shown in Figure 2, when the stroller is in the unfolded state, the push handle 5000 is tilted toward the rear and upward, which is convenient for the user to hold. It can be understood that in this article, the position of the push handle 5000 is the rear, and the other end opposite to the push handle 5000 is the front. When the user holds the push handle 5000, the left side corresponds to the user's left hand, and the right side corresponds to the user's right hand. The stroller is placed on the ground, the side close to the ground is the bottom, and the side away from the ground is the top.

[0094] The push handle 5000 is connected to the rear support leg 3200 via a slide 6000. The slide 6000 and the rear support leg 3200 are slidably connected. That is, the slide 6000 is disposed on the rear support leg 3200 and can slide relative to the rear support leg 3200 to reach a first position and a second position of the rear support leg 3200. For example, the first position is the lower portion of the rear support leg 3200, and the second position is the upper portion of the rear support leg 3200. When the slide 6000 slides to the first position, the stroller is in an unfolded state. When the slide 6000 slides to the second position, the stroller is in a folded state. The sliding of the slide 6000 is achieved by the push handle 5000.

[0095] The push handle 5000 and the slide 6000 are rotatably connected. When the stroller is in the unfolded state and needs to be switched to the folded state, the user holds the push handle 5000 and controls the push handle 5000 to rotate downward. The downward rotation of the push handle 5000 synchronously drives the slide 6000 to slide from the first position to the second position, thereby driving the remaining components of the stroller to move synchronously, and then the stroller is switched to the folded state; when the stroller is in the folded state and needs to be switched to the unfolded state, the user holds the push handle 5000 and controls the push handle 5000 to rotate upward. The upward rotation of the push handle 5000 synchronously drives the slide 6000 to slide from the second position to the first position, thereby driving the remaining components of the stroller to move synchronously, and then the stroller is switched to the unfolded state.

[0096] Since the rotation of the push handle 5000 can drive the slide 6000 to slide relative to the rear support leg 3200, thereby switching the stroller between the unfolded state and the folded state, when the stroller is in the unfolded state, in order to prevent the push handle 5000 from accidentally rotating, a first locking device 8100 is provided. The first locking device 8100 is provided on the rear support leg 3200 and is stationary relative to the rear support leg 3200. The locking and unlocking of the slide 6000 can be achieved through the cooperation of the first locking device 8100 and the slide 6000. When the first locking device 8100 locks the slide 6000, the slide 6000 is in the first position. At this time, the push handle 5000 cannot drive the slide 6000 to slide to the second position.

[0097] When the stroller needs to be switched from the unfolded state to the folded state, it is necessary to control the first locking device 8100 to unlock the slide 6000. In order to better unlock the first locking device 8100, in this embodiment, a first operating device 8200 is set, and the first operating device 8200 is connected to the first locking device 8100. The first operating device 8200 can be set to a position that is convenient for the user to access and operate. The user operates the first operating device 8200 so that the first operating device 8200 drives the first locking device 8100 to unlock the slide 6000. In this way, the push handle 5000 can drive the slide 6000 to slide from the first position to the second position, thereby realizing the folding of the stroller.

[0098] Based on the above solution, and in combination with Figures 1 to 4 , the folding and unfolding solution of the baby stroller is as follows:

[0099] The baby carriage includes a connecting seat 1000, a support leg assembly 3000, a bottom support assembly 4000, a surrounding tube assembly 2000, a sliding seat 6000, a push handle 5000, a first connecting rod 7100 and a second connecting rod 7200; the support leg assembly 3000 includes a rear support leg 3200 and a front support leg 3100, and the rear support leg 3200 and the front support leg 3100 are rotatably connected to the connecting seat 1000 respectively; the bottom support assembly 4000 is arranged below the connecting seat 1000, and the bottom support assembly 4000 includes a rear bottom support 4200 and a front bottom support 4100, and the rear bottom support 4200 and the front bottom support 4100 is rotatably connected, and the rear bottom support 4200 and the rear support leg 3200 are rotatably connected, and the front bottom support 4100 and the front support leg 3100 are rotatably connected; the enclosure tube assembly 2000 includes a rear enclosure tube 2200 and a front enclosure tube 2100, the rear enclosure tube 2200 is rotatably connected to the connecting seat 1000 and the push handle 5000 respectively, and the front enclosure tube 2100 is rotatably connected to the connecting seat 1000; the first connecting rod 7100 is rotatably connected to the sliding seat 6000 and the rear bottom support 4200 respectively, and the second connecting rod 7200 is rotatably connected to the front enclosure tube 2100 and the front support leg 3100 respectively.

[0100] The baby stroller switches from the unfolded state to the folded state: the user operates the first operating device 8200, so that the first operating device 8200 drives the first locking device 8100 to unlock the slide 6000, and the user holds the push handle 5000 to rotate the push handle 5000 downward. When the push handle 5000 rotates downward, it drives the rear tube 2200 to rotate downward relative to the connecting seat 1000, forcing the slide 6000 to slide from the first position to the second position (sliding from bottom to top). In the process of the slide 6000 sliding to the second position, the slide 6000 drives the rear bottom support 4200 to rotate upward through the first connecting rod 7100. When the rear bottom support 4200 rotates upward, it simultaneously drives the front bottom support 4100 to rotate upward, and the bottom support assembly 4000 composed of the front bottom support 4100 and the rear bottom support 4200 is folded upward in an inverted V shape, thereby causing the front support legs 3100 and the rear support legs 3200 to rotate relative to the connecting seat 1000 so as to be folded together. The front support legs 3100 drive the front surrounding tube 2100 to rotate downward relative to the connecting seat 1000 through the second connecting rod 7200, thereby causing the surrounding tube assembly 2000 composed of the front surrounding tube 2100 and the rear surrounding tube 2200 to be folded downward in a V shape, thereby enabling the stroller to switch to a folded state.

[0101] The baby stroller switches from the folded state to the unfolded state: the user holds the push handle 5000 and rotates the push handle 5000 upward. When the push handle 5000 rotates upward, it drives the rear tube 2200 to rotate upward relative to the connecting seat 1000, forcing the slide 6000 to slide from the second position to the first position (sliding from top to bottom) until the first locking device 8100 locks the slide 6000. In the process of the slide 6000 sliding to the first position, the slide 6000 drives the rear bottom support 4200 to rotate downward through the first connecting rod 7100. The rear bottom support 4200 rotates downward at the same time. The front bottom support 4100 is driven to rotate downward, and the bottom support assembly 4000 composed of the front bottom support 4100 and the rear bottom support 4200 is opened downward in an inverted V shape, which in turn causes the front supporting legs 3100 and the rear supporting legs 3200 to rotate away from each other relative to the connecting seat 1000, and the front supporting legs 3100 drive the front surrounding tube 2100 to rotate upward relative to the connecting seat 1000 through the second connecting rod 7200, so that the surrounding tube assembly 2000 composed of the front surrounding tube 2100 and the rear surrounding tube 2200 is opened upward in an inverted V shape, thereby enabling the baby stroller to switch to the unfolded state.

[0102] As shown in Figures 5 to 9, in some embodiments of the present application, the slide 6000 is mounted on the rear support leg 3200, and the slide 6000 is provided with a locking hole 6100, and the first locking device 8100 includes a first locking pin 8110 and a first elastic member 8120 abutting against the first locking pin 8110, and the first operating device 8200 needs to be connected to the first locking pin 8110.

[0103] The process of locking and unlocking the slide 6000 by the first locking device 8100 is as follows:

[0104] When the slide 6000 is in the first position, the first locking pin 8110 is inserted into the locking hole 6100 under the action of the first elastic member 8120 (such as a spring). The first locking pin 8110 and the locking hole 6100 cooperate with each other, and the slide 6000 cannot leave the first position and slide to the second position.

[0105] When the slide 6000 slides from the first position to the second position, the user operates the first operating device 8200, and the first operating device 8200 drives the first locking pin 8110 to leave the lock hole 6100, thereby releasing the lock on the slide 6000. At this time, the first elastic member 8120 deforms and continues to exert elastic potential energy (for example, compression), and the slide 6000 can leave the first position and slide to the second position.

[0106] When the slide 6000 slides from the second position to the first position, the slide 6000 slides to the first position, so that the first locking pin 8110 and the locking hole 6100 correspond to each other, and the first elastic member 8120 releases elastic potential energy, driving the first locking pin 8110 to be stuck in the locking hole 6100, thereby locking the slide 6000, and the slide 6000 cannot leave the first position.

[0107] Continuing with Figures 5 to 9 , in some embodiments of the present application, the first locking device 8100 also includes a first lock seat 8130 , the first lock pin 8110 and the first elastic member 8120 are arranged on the first lock seat 8130 , and the first lock seat 8130 is arranged inside the rear support leg 3200 .

[0108] Specifically, by setting the first lock seat 8130, a basis is provided for the installation of the first lock pin 8110 and the first elastic member 8120. The first elastic member 8120 can be set between the first lock pin 8110 and the first lock seat 8130 to support the first lock pin 8110. The whole composed of the first lock seat 8130, the first lock pin 8110 and the first elastic member 8120 is installed inside the rear support leg 3200 for fixation, thereby better realizing the assembly of the first locking device 8100 and the rear support leg 3200.

[0109] It is understood that the first lock seat 8130 is disposed inside the rear support leg 3200 and needs to be designed to be fixed, for example, by fastening the first lock seat 8130 to the interior of the rear support leg 3200 with a screw. Of course, other methods can also be used to secure the first lock seat 8130. Since the first lock seat 8130 is disposed inside the rear support leg 3200, a first through hole 3210 is provided on the rear support leg 3200 to facilitate the first locking pin 8110 to be inserted into the locking hole 6100. The first locking pin 8110 passes through the first through hole 3210 and is inserted into the locking hole 6100, thereby locking the slide 6000. When the first operating device 8200 drives the first locking pin 8110 to disengage the locking hole 6100, the first locking pin 8110 retracts toward the first lock seat 8130, thereby unlocking the slide 6000.

[0110] As shown in combination with Figures 2 and 5, in some embodiments of the present application, the rear support leg 3200 is provided with a stop block 8140 in the direction of the first position away from the second position, and the first locking pin 8110 is provided with a guide slope 8111 and a stop surface 8112. Through such a setting, when the slide 6000 slides from the second position to the first position, the first locking pin 8110 can be inserted into the locking hole 6100 without operating the first operating device 8200.

[0111] Specifically, when the baby carriage is in a folded state and needs to be switched to an unfolded state, the slide 6000 slides from the second position toward the first position. When the slide 6000 is about to slide to the first position, the slide 6000 contacts the guide slope 8111 of the first lock pin 8110. Under the action of force, the slide 6000 forces the first lock pin 8110 to retract first, until the slide 6000 slides to the first position so that the lock hole 6100 and the first lock pin 8110 correspond to each other. An elastic member 8120 engages with the locking hole 6100. To prevent the slide 6000 from sliding from the first position in a direction away from the second position, that is, to prevent the slide 6000 from sliding beyond the first position, a stopper 8140 is provided. This block 8140 blocks the slide 6000. This arrangement eliminates the need for the user to operate the first operating device 8200 to control the first locking pin 8110 when the slide 6000 slides from the second position toward the first position, providing a convenient and quick operation. When the slide 6000 is in the first position, if the slide 6000 attempts to slide toward the second position, it is blocked by the stop surface 8112. The stop surface 8112 is substantially parallel to the inner wall of the corresponding locking hole 6100. Therefore, the slide 6000 cannot force the first locking pin 8110 to retract, preventing the slide 6000 from sliding from the first position to the second position and maintaining the stroller in its unfolded state.

[0112] As shown in Figure 9, in some embodiments of the present application, the first operating device 8200 includes a first rope 8240, which is connected to the first locking pin 8110. By pulling the first rope 8240, the first locking pin 8110 can be driven to move, thereby disengaging the first locking pin 8110 from the lock hole 6100, thereby unlocking the slide 6000.

[0113] Specifically, the location where the first locking device 8100 is set may not be convenient for the user to perform a direct unlocking operation. Because the first rope 8240 is set, the first rope 8240 is connected to the first locking pin 8110, and the first rope 8240 has a certain length, the first rope 8240 can be extended to a position that is more convenient for the user to operate, thereby facilitating the user's unlocking operation. It is understandable that when the first rope 8240 is pulled, the first locking pin 8110 is moved. The pulling of the first rope 8240 can be direct or indirect. For example, the user can directly hold the first rope 8240 to pull the first rope 8240, or the user can indirectly act on the first rope 8240 to pull the first rope 8240. In addition, the first rope 8240 in this article (the same applies to the second rope 8430 below) should be understood broadly, and is a long flexible connection structure that can be made of a variety of materials, such as fiber, metal, etc. Generally speaking, in order to ensure the service life of the first rope 8240, the use of steel wire will be a more appropriate solution.

[0114] It can be understood that the left and right sides of the baby carriage are respectively provided with rear support legs 3200. As shown in Figures 1 and 9, the left and right sides of the baby carriage are respectively provided with front support legs 3100 and rear support legs 3200, thereby improving the overall stability of the baby carriage. For this reason, in this embodiment, the first locking device 8100 needs to correspond one-to-one with the rear support legs 3200, and the sliding seat 6000 also needs to correspond one-to-one with the first support legs. On this basis, in order to realize the control of the first locking devices 8100 on the left and right sides, it is achieved by structurally optimizing the first operating device 8200.

[0115] As shown in Figure 9, the first operating device 8200 also includes a first fixed seat 8210, a second fixed seat 8220 and a connecting belt 8230. The first fixed seat 8210 and the second fixed seat 8220 are arranged alternately. The first fixed seat 8210 includes a first seat body 8211 and a first connecting arm 8212. The first connecting arm 8212 and the first seat body 8211 are rotatably connected. The first connecting arm 8212 and the first locking pin 8110 on one side are connected by a first rope 8240. The second fixed seat 8220 includes a second seat body 8221 and a second connecting arm 8222. The second connecting arm 8222 and the second seat body 8221 are rotatably connected. The second connecting arm 8222 and the first locking pin 8110 on the other side are connected by a first rope 8240. The connecting belt 8230 connects the first connecting arm 8212 and the second connecting arm 8222.

[0116] When it is necessary to unlock the slides 6000 on the left and right sides, the user can pull the connecting belt 8230. The user pulls the connecting belt 8230 upward, thereby driving the first connecting arm 8212 and the second connecting arm 8222 to rotate, so that the first connecting arm 8212 and the second connecting arm 8222 pull the first rope 8240, thereby synchronously unlocking the corresponding slides 6000 by the first locking pins 8110 on the left and right sides.

[0117] As shown in FIG1 , in some embodiments of the present application, the first operating device 8200 is installed on the rear tube 2200 , that is, the first operating device 8200 is located at the lower position of the stroller and is not easily exposed, thereby improving the overall aesthetics of the stroller.

[0118] For example, the first seat body 8211 is fixed to the left side of the rear bottom support 4200, and the first seat body 8211 is located below the first locking device 8100 on the left side, so that the arrangement of the first rope 8240 connecting the first connecting arm 8212 and the first locking pin 8110 on the left side is more convenient. The second seat body 8221 is fixed to the right side of the rear bottom support 4200, and the second seat body 8221 is located below the first locking device 8100 on the right side, so that the arrangement of the first rope 8240 connecting the second connecting arm 8222 and the first locking pin 8110 on the right side is more convenient.

[0119] As shown in Figures 16 and 17, in some embodiments of the present application, the push handle 5000 includes a first tube segment 5100 and a second tube segment 5200, and the first tube segment 5100 and the second tube segment 5200 are telescopically connected, so that the length of the push handle 5000 can be adjusted to have a lengthened state and a shortened state. The rotatable connection between the push handle 5000 and the slide 6000 is achieved through the rotatable connection between the second tube segment 5200 and the slide 6000, and the rotatable connection between the push handle 5000 and the rear tube 2200 mentioned above is achieved through the rotatable connection between the second tube segment 5200 and the rear tube 2200.

[0120] It is understandable that, generally speaking, the push handle 5000 has a certain length, which makes it convenient for users to hold and apply force. When the stroller is in a folded state, the longer push handle 5000 will also take up space. Therefore, by designing the push handle 5000 to have a first tube segment 5100 and a second tube segment 5200, the first tube segment 5100 and the second tube segment 5200 are telescopically connected. When the first tube segment 5100 is retracted relative to the second tube segment 5200, the entire push handle 5000 is in a shortened state, which can further reduce the space occupied when the stroller is in a folded state. When the first tube segment 5100 is pulled apart relative to the second tube segment 5200, the entire push handle 5000 is in a lengthened state, which is convenient for users to hold.

[0121] As shown in Figures 18 and 19, in some embodiments of the present application, the push handle 5000 includes a second locking device 8300 and a second operating device 8400. The second locking device 8300 is used to lock the first pipe segment 5100 and the second pipe segment 5200 to maintain the push handle 5000 in a variable length state. The second operating device 8400 and the second locking device 8300 are connected. The second operating device 8400 is used to be operated, thereby driving the second locking device 8300 to unlock the first pipe segment 5100 and the second pipe segment 5200, so that the push handle 5000 can be switched from a variable length state to a shortened state.

[0122] Specifically, when a user grips the push handle 5000 to push the stroller, a second locking device 8300 is provided to lock the first and second tube segments 5100, 5200, to prevent accidental movement of the first and second tube segments 5100, 5200, which could cause the push handle 5000 to switch from an extended state to a shortened state. To prevent this, when the stroller needs to be stored, the user operates the second operating device 8400, which drives the second locking device 8300 to unlock the first and second tube segments 5100, 5200, allowing the first and second tube segments 5100, 5200 to move relative to each other, thereby switching the push handle 5000 from an extended state to a shortened state.

[0123] The specific structure of the second locking device 8300 is as follows:

[0124] Continuing with Figures 18 and 19, the second locking device 8300 is provided on the first pipe section 5100, the second locking device 8300 includes a second locking pin 8310 and a second elastic member 8320 abutting the second locking pin 8310, the second operating device 8400 is connected to the second locking pin 8310, and the second pipe section 5200 is provided with a first limiting hole 5210.

[0125] The locking and unlocking process of the first pipe section 5100 and the second pipe section 5200 is as follows:

[0126] When the push handle 5000 is in a lengthened state, the second locking pin 8310 is inserted into the first limiting hole 5210 under the action of the second elastic member 8320 (such as a spring). Since the second locking device 830 is relatively fixed to the first tube section 5100, the second locking pin 8310 and the first limiting hole 5210 cooperate with each other, so that the first tube section 5100 and the second tube section 5200 cannot move relative to each other and maintain the lengthened state of the push handle 5000.

[0127] When the push handle 5000 switches from a lengthened state to a shortened state, the user operates the second operating device 8400, and the second operating device 8400 drives the second locking pin 8310 to leave the first limiting hole 5210, thereby releasing the lock of the first pipe section 5100 and the second pipe section 5200. At this time, the first pipe section 5100 and the second pipe section 5200 can retract relative to each other, thereby switching the push handle 5000 to a shortened state.

[0128] When the push handle 5000 switches from a shortened state to a lengthened state, the user pulls the first tube section 5100 and the second tube section 5200 relative to each other until the first limiting hole 5210 and the second locking pin 8310 correspond to each other, and the second locking pin 8310 is snapped into the first limiting hole 5210 under the action of the second elastic member 8320, thereby achieving the locking of the first tube section 5100 and the second tube section 5200.

[0129] It can be understood that the second pipe section 5200 can also be provided with a second limiting hole 5220. When the push handle 5000 is switched to the shortened state, the second locking pin 8310 is engaged with the second limiting hole 5220, thereby locking the first pipe section 5100 and the second pipe section 5200 to maintain the shortened state of the push handle 5000. In this case, when switching the push handle 5000 from the shortened state to the lengthened state, it is necessary to first operate the second operating device 8400 to control the second locking pin 8310 to disengage from the second limiting hole 5220.

[0130] Alternatively, more holes may be provided between the first limiting hole 5210 and the second limiting hole 5220 in the second pipe segment 5200, so that multi-stage adjustment between the first pipe segment 5100 and the second pipe segment 5200 can be achieved.

[0131] Further, in combination with Figure 19, in some embodiments of the present application, the second locking device 8300 also includes a second lock seat 8330, the second lock pin 8310 and the second elastic member 8320 are arranged on the second lock seat 8330, and the second lock seat 8330 is arranged inside the first tube section 5100.

[0132] Specifically, by setting the second lock seat 8330, a basis is provided for the installation of the second lock pin 8310 and the second elastic member 8320. The second elastic member 8320 can be set between the second lock pin 8310 and the second lock seat 8330 to support the second lock pin 8310. The whole composed of the second lock seat 8330, the second lock pin 8310 and the second elastic member 8320 is installed inside the first pipe section 5100 for fixation, thereby better realizing the assembly of the second locking device 8300 and the first pipe section 5100.

[0133] It can be understood that the second lock seat 8330 is arranged inside the first pipe section 5100 and needs to be designed to be fixed, for example, the second lock seat 8330 is locked inside the first pipe section 5100 by screws. Of course, other methods can also be used to fix the second lock seat 8330.

[0134] For example, the second locking device 8300 is first installed in the first pipe section 5100, and the first pipe section 5100 is inserted into the second pipe section 5200 to achieve a telescopic fit. The second operating device 8400 is disposed on the first pipe section 5100, and the user grips the push handle 5000 by gripping the first pipe section 5100. Since the second operating device 8400 is also disposed on the first pipe section 5100, it is convenient for the user to operate the second operating device 8400. In this case, the first pipe section 5100 and the second pipe section 5200 can be unlocked by the second operating device 8400 driving the second locking pin 8310 to disengage from the first limiting hole 5210 (or the second limiting hole 5220).

[0135] In combination with Figures 18, 20, 21 and 22, in some embodiments of the present application, the second operating device 8400 includes a first release member 8410 and a second rope 8430. The first release member 8410 is configured to be movably set, and the second rope 8430 is respectively connected to the first release member 8410 and the second locking pin 8310. When the user controls the first release member 8410 to move, the first release member 8410 can drive the second rope 8430 to pull the second locking pin 8310, so that the second locking pin 8310 disengages from the first limiting hole 5210, thereby achieving the unlocking of the first pipe section 5100 and the second pipe section 5200.

[0136] The first release member 8410 can be in various forms. For example, the first release member 8410 can be designed as a button and can move back and forth. When the user holds the first tube section 5100, it is easy for the hand to hold the first release member 8410, and then control the first release member 8410 to move back and forth, thereby achieving control over the movement of the first release member 8410. When the first release member 8410 moves, it drives the second rope 8430 to move synchronously, so that the second lock pin 8310 is pulled by the second rope 8430. When the user no longer controls the first release member 8410, the second lock pin 8310 can be reset under the action of the second elastic member 8320.

[0137] For example, the first release member 8410 is provided with an inclined groove 8411, which is inclined relative to the reciprocating motion direction of the first release member 8410. A sliding needle 8420 is inserted into the inclined groove 8411, and the second rope 8430 is connected to the sliding needle 8420. When the first release member 8410 reciprocates, the sliding needle 8420 can move in the inclined groove 8411, thereby driving the second rope 8430 to move.

[0138] Furthermore, since the second operating device 8400 is located on (the first tube section 5100 of) the push handle 5000, to prevent accidental operation of the second operating device 8400 from unlocking the first tube section 5100 and the second tube section 5200, in this embodiment, the second operating device 8400 further includes a movable stopper 8440. The stopper 8440 can be moved into or out of the path of the first release member 8410 when unlocking the first tube section 5100 and the second tube section 5200 is not required. Thus, when the first tube section 5100 and the second tube section 5200 do not need to be unlocked, the stopper 8440 can be moved into the path of the first release member 8410. At this time, the stopper 8440 blocks the first release member 8410. Even if the user accidentally operates the first release member 8410, the first release member 8410 cannot move due to the obstruction of the stopper 8440, and the second lock pin 8310 cannot be driven to move by the second rope 8430, thereby preventing accidental locking. When the first tube section 5100 and the second tube section 5200 need to be unlocked, the stopper 8440 is moved away from the moving path of the first release member 8410. At this time, the stopper 8440 avoids the first release member 8410, and the user can operate the first release member 8410 to move.

[0139] As described above, the first tube segment 5100 and the second tube segment 5200 are telescopically connected to achieve the lengthened and shortened states of the push handle 5000. The first tube segment 5100 and the second tube segment 5200 can also be rotatably connected to adjust the length of the push handle 5000, thereby allowing the push handle 5000 to have a lengthened and shortened state. For example, as shown in Figures 10 and 15, when the first tube segment 5100 rotates relative to the second tube segment 5200 and toward the second tube segment 5200 until it overlaps the second tube segment 5200, the push handle 5000 is in the shortened state. When the first tube segment 5100 rotates relative to the second tube segment 5200 and away from the second tube segment 5200 until it is substantially coplanar with the second tube segment 5200, the push handle 5000 is in the lengthened state.

[0140] It is understandable that, similar to the telescopic connection, the rotatable connection between the first pipe segment 5100 and the second pipe segment 5200 also requires the provision of a third locking device 8500 and a third operating device 8600 to achieve locking and unlocking between the first pipe segment 5100 and the second pipe segment 5200.

[0141] When a user grips the push handle 5000 to push the stroller, a third locking device 8500 is provided to lock the first and second tube segments 5100, 5200, to prevent accidental rotation of the first and second tube segments 5100, 5200, which could cause the push handle 5000 to switch from an extended state to a shortened state. To prevent this from happening, the user operates the third operating device 8600, which drives the third locking device 8500 to unlock the first and second tube segments 5100, 5200, allowing the first and second tube segments 5100, 5200 to rotate relative to each other, thereby switching the push handle 5000 from an extended state to a shortened state.

[0142] 11 to 14 , the specific structures of the third locking device 8500 and the third operating device 8600 are as follows:

[0143] The third locking device 8500 includes a first mounting seat 8510, a second mounting seat 8520, a locking member 8530 and a third elastic member 8540. The first mounting seat 8510 is arranged on the first pipe section 5100. The first mounting seat 8510 is provided with a first cavity 8511 and a first groove 8512 located in the first cavity 8511. For example, the first groove 8512 is formed on the cavity wall of the first cavity 8511. The second mounting seat 8520 is provided on the second pipe section 5200. The second mounting seat 8520 and the first mounting seat 8510 are rotatably connected. The second mounting seat 8520 is provided with a second cavity 8521 and a second groove 8522 located in the second cavity 8521. For example, the second groove 8522 is formed on the cavity wall of the second cavity 8521. The rotatable connection between the first mounting seat 8510 and the second mounting seat 8520 realizes the rotatable connection between the first pipe section 5100 and the second pipe section 5200. The locking member 8530 is disposed in the first cavity 8511 and is locked into the first locking groove 8512 . The third elastic member 8540 is disposed between the locking member 8530 and the bottom of the first cavity 8511 .

[0144] When the push handle 5000 is in a lengthened state, under the action of the third elastic member 8540, part of the locking member 8530 moves into the second cavity 8521 and is locked into the second slot 8522. At this time, the remaining part of the locking member 8530 is still in the first cavity 8511 and is locked into the first slot 8512. At this time, through the action of the locking member 8530, the first mounting seat 8510 and the second mounting seat 8520 cannot rotate relative to each other, thereby realizing the locking of the first pipe section 5100 and the second pipe section 5200.

[0145] The third operating device 8600 includes a second release member 8610, and the second release member 8610 has various forms. For example, the second release member 8610 is designed to be in the form of a button, and the second release member 8610 is movably set in the second mounting seat 8520. When it is necessary to release the lock of the first tube segment 5100 and the second tube segment 5200, the user controls the second release member 8610 to move (such as the user presses the second release member 8610), and the second release member 8610 moves toward the first cavity 8511, driving the locking member 8530 to disengage from the second slot 8522 and leave the second cavity 8521. At this time, the unlocking is completed, and the first mounting seat 8510 and the second mounting seat 8520 can rotate relative to each other, that is, the first tube segment 5100 and the second tube segment 5200 can rotate relative to each other.

[0146] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A baby stroller, the baby stroller having a folded state and an unfolded state, wherein: The baby stroller comprises: rear supporting leg; a slide seat, the slide seat being slidably connected to the rear support leg and being slidable to a first position and a second position relative to the rear support leg, wherein the baby carriage is in the unfolded state when the slide seat slides to the first position, and is in the folded state when the slide seat slides to the second position; A push handle, wherein the push handle is rotatably connected to the slide seat, the push handle is adapted to rotate downward to drive the slide seat to slide from the first position to the second position, and the push handle is adapted to rotate upward to drive the slide seat to slide from the second position to the first position; A first locking device, the first locking device is provided on the rear supporting leg, and is suitable for locking the slide when the slide slides to the first position; and A first operating device is connected to the first locking device, and the first operating device is suitable for being operated to drive the first locking device to unlock the slide, so that the push handle can be rotated downward to drive the slide to slide from the first position to the second position.

2. The baby stroller according to claim 1, wherein: The baby stroller comprises: A support leg assembly, the support leg assembly comprising the rear support leg and the front support leg; A connecting seat, the rear supporting leg and the front supporting leg are rotatably connected to the connecting seat respectively; A bottom support assembly, the bottom support assembly is arranged below the connecting seat, the bottom support assembly comprises a rear bottom support and a front bottom support which are rotatably connected, the rear bottom support and the rear supporting leg are rotatably connected, and the front bottom support and the front supporting leg are rotatably connected; A surrounding tube assembly, the surrounding tube assembly comprising a rear surrounding tube and a front surrounding tube, the rear surrounding tube is rotatably connected to the connecting seat and the push handle respectively, and the front surrounding tube is rotatably connected to the connecting seat; A first connecting rod is rotatably connected to the sliding seat and the rear bottom support respectively; and A second connecting rod is rotatably connected to the front enclosure tube and the front supporting leg respectively; When the push handle is rotated downward, the surrounding tube assembly, the bottom support assembly and the supporting leg assembly are folded, so that the baby carriage is in the folded state; When the push handle is rotated upward, the surrounding tube assembly, the bottom support assembly and the supporting leg assembly are opened, so that the baby carriage is in the expanded state.

3. The baby carriage according to claim 1 or 2, wherein: The slide seat is sleeved on the rear support leg, the slide seat is provided with a locking hole, the first locking device comprises a first locking pin and a first elastic member abutting against the first locking pin, and the first operating device is connected to the first locking pin; When the slide seat slides to the first position, the first locking pin is inserted into the locking hole under the action of the first elastic member to lock the slide seat; When the first operating device is operated, the first operating device drives the first locking pin to disengage from the locking hole to unlock the sliding seat.

4. The baby stroller according to claim 3, wherein: The first locking device also includes a first locking seat, the first locking pin and the first elastic member are arranged on the first locking seat, and the first locking seat is arranged inside the rear supporting leg.

5. The baby carriage according to claim 3 or 4, wherein: The rear support leg is provided with a stopper in the direction of the first position away from the second position, and the first locking pin has a guiding inclined surface and a stop surface; The guide slope is adapted to contact the slide when the slide slides from the second position to the first position, so that the first lock pin is first retracted and then inserted into the lock hole, and the stopper is adapted to abut against the slide to limit the slide from the first position to slide in a direction away from the second position; The abutment surface is adapted to abut against a hole wall of the locking hole when the sliding seat slides to the first position, so as to limit the sliding seat from sliding from the first position toward the second position.

6. The baby carriage according to any one of claims 3 to 5, wherein: The first operating device includes a first rope connected to the first locking pin, and the first rope is suitable for being pulled to drive the first locking pin to unlock the sliding seat.

7. The baby carriage according to claim 6, wherein: The rear supporting legs are respectively provided on the left and right sides of the baby carriage, and the sliding seat and the first locking device correspond to the rear supporting legs one by one respectively; The first operating device also includes: A first fixed seat, the first fixed seat comprising a first seat body and a first connecting arm rotatably connected to the first seat body, the first connecting arm and the first locking pin on one side thereof being connected via the first rope; a second fixing seat, the second fixing seat comprising a second seat body and a second connecting arm rotatably connected to the second seat body, the second connecting arm and the first locking pin on the other side being connected via the first rope; and A connecting belt connects the first connecting arm and the second connecting arm, and the connecting belt is suitable for being operated to drive the first connecting arm and the second connecting arm to rotate, so that the first rope is pulled.

8. The baby carriage according to claim 7, wherein: The first operating device is installed on the rear bottom support.

9. The baby stroller according to any one of claims 1 to 8, wherein: The push handle comprises a first pipe section and a second pipe section, wherein the first pipe section and the second pipe section are telescopically connected so that the length of the push handle can be adjusted, and the second pipe section and the slide seat are rotatably connected.

10. The baby carriage according to claim 9, wherein: The push handle comprises: a second locking device, the second locking device being adapted to lock the first pipe section and the second pipe section so that the push handle is in a lengthened state; and The second operating device is connected to the second locking device, and the second operating device is suitable for being operated to drive the second locking device to unlock the first pipe section and the second pipe section, so that the push handle can be switched from a lengthened state to a shortened state.

11. The baby carriage according to claim 10, wherein: The second locking device is arranged on the first pipe section, the second locking device comprises a second locking pin and a second elastic member abutting against the second locking pin, the second operating device is connected to the second locking pin, and the second pipe section is provided with a first limiting hole; When the push handle is switched to the lengthened state, the second locking pin is snapped into the first limiting hole under the action of the second elastic member to lock the first pipe section and the second pipe section; When the second operating device is operated, the second operating device drives the second locking pin to disengage from the first limiting hole to unlock the first pipe section and the second pipe section.

12. The baby carriage according to claim 11, wherein: The second operating device comprises: A first release member is configured to be movable; and a second rope, the second rope being connected to the first release member and the second locking pin respectively; The first release member is suitable for being operated to drive the second rope to pull the second locking pin, so that the second locking pin is separated from the first limiting hole.

13. The baby carriage according to claim 12, wherein: The second operating device further includes a stopper, which is configured to be movably arranged to be suitable for reaching the moving path of the first release member to limit the movement of the first release member, and leaving the moving path of the first release member to avoid the movement of the first release member.

14. The baby stroller according to any one of claims 1 to 13, wherein: The push handle includes a first pipe section and a second pipe section, wherein the first pipe section and the second pipe section are rotatably connected to each other so that the length of the push handle can be adjusted, and the second pipe section and the slide seat are rotatably connected to each other.

15. The baby carriage according to claim 14, wherein: The push handle also includes: a third locking device, the third locking device being adapted to lock the first pipe section and the second pipe section so that the push handle is in a lengthened state; and The third operating device is connected to the third locking device, and the third operating device is suitable for being operated to drive the third locking device to unlock the first pipe section and the second pipe section, so that the push handle can be switched from a lengthened state to a shortened state.

16. The baby carriage according to claim 15, wherein: The third locking device comprises: A first mounting seat, the first mounting seat is arranged on the first pipe section, the first mounting seat is provided with a first cavity and a first slot located in the first cavity; a second mounting seat, the second mounting seat and the first mounting seat are rotatably connected, the second mounting seat is arranged on the second pipe section, and the second mounting seat is provided with a second cavity and a second slot located in the second cavity; A stopper and a third elastic member, wherein the third elastic member abuts against the stopper, and the stopper is adapted to move to the first cavity and the second cavity under the action of the third elastic member, and to be inserted into the first slot and the second slot to lock the first pipe section and the second pipe section; The third operating device includes a second releasing member, which is movably disposed on the second mounting seat. The second releasing member is suitable for being operated to drive the locking member to leave the second cavity and move into the first cavity, so that the locking member disengages from the second slot to unlock the first pipe section and the second pipe section.

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