Child carrier

By designing an unlocking mechanism in a child's vehicle, and using the unlocking member to move the first locking mechanism and the second locking mechanism in the longitudinal direction, the problem of inconvenient switching of the existing children's vehicle mode is solved, and convenient mode switching operation is realized.

CN119659731APending Publication Date: 2025-03-21SUNNYLOVE BABY PRODUCTS ZHUHAI CO LTD
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Patent Information

Application Number
CN202311226210.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-21
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

When switching between the cart mode and the safety seat mode, the existing children's vehicle is inconvenient to operate, making it difficult to achieve fast and convenient mode switching.

Method used

A children's vehicle is designed, which includes a vehicle body, a walking mechanism and an unlocking mechanism. The walking mechanism realizes mode switching through the forefoot assembly, the first locking mechanism, the rear foot assembly and the second locking mechanism. The unlocking mechanism moves in the longitudinal direction through the unlocking member to unlock the first locking mechanism and the second locking mechanism simultaneously.

Benefits of technology

It realizes convenient switching between children's vehicle in cart mode and safety seat mode. Users only need to control the unlocking element to move in the longitudinal direction to unlock two locks simultaneously. It is simple and convenient to operate, improving the user's convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a child carrier. The child carrier comprises a carrier body, a walking mechanism and an unlocking mechanism. The walking mechanism is connected with the carrier body and is unfolded or folded relative to the carrier body so that the child carrier can be switched between a cart mode and a safety seat mode. The walking mechanism comprises a front foot assembly, a first locking mechanism, a rear foot assembly and a second locking mechanism. In the safety seat mode, the front foot assembly is locked with the vehicle body through the first locking mechanism. The rear foot assembly is locked with the carrier body through a second locking mechanism. The unlocking mechanism comprises an unlocking piece. When the child carrier is switched from the safety seat mode to the cart mode, the unlocking piece is configured to move in the longitudinal direction relative to the carrier body under the action of external force, and the first locking mechanism and the second locking mechanism are synchronously unlocked in the moving process. According to the child carrier, only the unlocking piece needs to be controlled to move in the longitudinal direction, two positions can be unlocked synchronously through one action, and therefore operation is convenient.
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Description

Technical Field

[0001] The invention relates to a children's carrier. Background Art

[0002] In order to facilitate the use of the child carrier, the child carrier of the related art can be switched between a stroller mode and a safety seat mode by unfolding and folding. In the stroller mode, the child carrier is unfolded to be pushed on the ground. In the safety seat mode, the child carrier is folded to be installed on the car seat and used as a safety seat.

[0003] For the above-mentioned child carrier, how to make the mode switching convenient to operate is an urgent problem to be solved.

[0004] It should be noted that the statements in this background technology section only provide background technology related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0005] The present invention provides a children's vehicle to improve the operational convenience of user mode switching.

[0006] The present invention provides a child carrier, comprising:

[0007] The vehicle body includes a back plate assembly and a seat plate assembly;

[0008] a walking mechanism connected to the carrier body and unfolded or folded relative to the carrier body to switch the child carrier between a stroller mode and a safety seat mode, the walking mechanism comprising a front foot assembly, a first locking mechanism, a rear foot assembly and a second locking mechanism, in the safety seat mode, the front foot assembly is locked with the carrier body by the first locking mechanism, and the rear foot assembly is locked with the carrier body by the second locking mechanism; and

[0009] The unlocking mechanism includes an unlocking member. When the child carrier is switched from a safety seat mode to a stroller mode, the unlocking member is configured to move in a longitudinal direction relative to the carrier body under the action of an external force, and during the movement, the first locking mechanism and the second locking mechanism are synchronously unlocked.

[0010] In some embodiments, an unlocking slide groove extending along the longitudinal direction is provided on the back panel assembly, and the unlocking member is configured to slide in the unlocking slide groove.

[0011] In some embodiments, the unlocking member extends in the longitudinal direction, and the unlocking mechanism also includes a first unlocking structure corresponding to the first locking mechanism and a second unlocking structure corresponding to the second locking mechanism, and the first unlocking structure and the second unlocking structure are located at different positions in the longitudinal direction.

[0012] In some embodiments, the first unlocking structure includes an unlocking rope connected to the unlocking member and a front foot unlocking member connected to the end of the unlocking rope. A first slide groove extending along the transverse direction is provided on the seat plate assembly. The front foot unlocking member is configured to slide with the first slide groove. When the unlocking member moves along the longitudinal direction, the front foot unlocking member slides laterally outward in the first slide groove driven by the unlocking member to unlock the first locking mechanism.

[0013] In some embodiments, the front foot assembly includes two front foot tubes arranged opposite to each other, and the front foot tubes are rotatably connected to the end of the seat plate assembly. The first locking mechanism includes a groove arranged on one of the front foot tube and the seat plate assembly and a protrusion arranged on the other of the front foot tube and the seat plate assembly. In the safety seat mode, the front foot tube is rotated to the side of the seat plate assembly and the protrusion is engaged in the groove to lock the front foot tube. When the mode is switched, the front foot unlocking piece slides laterally outward to push the front foot tube away from the seat plate assembly so as to disengage the protrusion and the groove.

[0014] In some embodiments, the first unlocking structure further includes a first compression spring disposed between the end of the unlocking rope and the forefoot unlocking member.

[0015] In some embodiments, the unlocking member has a first abutment surface, the second unlocking structure includes an unlocking rod extending in the transverse direction, a second slide groove extending along the transverse direction is provided on the back panel assembly, the unlocking rod is configured to slide with the second slide groove, and when the unlocking member moves along the longitudinal direction, the unlocking rod slides laterally inward in the second slide groove under the abutment of the first abutment surface to unlock the second locking mechanism.

[0016] In some embodiments, the first abutting surface includes an inclined surface, and the end of the unlocking rod abuts against the inclined surface.

[0017] In some embodiments, the unlocking member includes a locking hole, a locking block is provided at the end of the unlocking rod, the locking hole has an inclined surface, and the locking block is locked on the inclined surface.

[0018] In some embodiments, the rear foot assembly includes a rear foot tube and a rear joint, and the second locking mechanism includes a rear foot group locking tooth arranged on the inner side of the rear joint, a locking tooth boss arranged on the rear foot group locking tooth, and a locking bayonet arranged on the back plate assembly 110. In the safety seat mode, the unlocking rod is arranged on the lower side of the locking bayonet to form a locking groove together with the locking bayonet, and the locking tooth boss is engaged in the locking groove. When the mode is switched, the unlocking rod slides laterally inward in the second slide groove to release the locking tooth boss.

[0019] In some embodiments, the unlocking mechanism further includes an unlocking rod compression spring disposed at an inner end of the unlocking rod.

[0020] In some embodiments, the outer end of the unlocking lever has a guiding slope.

[0021] In some embodiments, the walking mechanism includes a third locking mechanism. In the stroller mode, the rear foot assembly is locked to the carrier body through the third locking mechanism. When the child carrier is switched from the stroller mode to the safety seat mode, the unlocking member is configured to move in the longitudinal direction relative to the carrier body under the action of an external force to unlock the third locking mechanism.

[0022] In some embodiments, the unlocking mechanism also includes a third unlocking structure arranged corresponding to the third locking mechanism, the unlocking member has a second abutting surface, the third unlocking structure includes an unlocking push block, and a third slide groove extending along the transverse direction is provided on the back plate assembly. The unlocking push block is configured to slide with the third slide groove. When the unlocking member moves along the longitudinal direction, the unlocking push block slides laterally outward in the third slide groove under the abutment of the second abutting surface to unlock the third locking mechanism.

[0023] In some embodiments, the third locking structure further includes a second compression spring disposed on a side of the unlocking push block away from the second abutting surface.

[0024] In some embodiments, the second abutting surface includes an inclined surface; and / or the unlocking push block includes an inclined surface.

[0025] In some embodiments, the rear foot assembly includes a rear foot tube and a rear joint, and the rear foot tube is rotatably connected to the back plate assembly through the rear joint. The third locking mechanism includes a first locking tooth arranged on the inner side of the rear joint and a third locking tooth arranged on the back plate assembly. In the stroller mode, the first locking tooth and the third locking tooth are engaged. When the mode is switched, the unlocking push block slides laterally outward in the third slide groove to push the rear joint away from the back plate assembly.

[0026] In some embodiments, the unlocking push block includes a push block body and a push rod disposed on the push block body, and the push rod passes through the side of the back plate assembly to push the rear foot assembly away from the back plate assembly to unlock the third locking mechanism.

[0027] In some embodiments, when the child carrier is switched from the stroller mode to the safety seat mode, the rear leg set is configured to move upward along the side of the back panel assembly.

[0028] In some embodiments, a fourth slide groove and a fifth slide groove are provided on the side of the back plate assembly, the fourth slide groove is inclined outward relative to the fifth slide groove, and the rear foot group is configured to move along the fourth slide groove and the fifth slide groove.

[0029] In some embodiments, the rear foot assembly includes a rear foot tube and a rear joint, and a sliding block slidably matched with the fourth sliding groove and a sliding boss slidably matched with the fifth sliding groove are arranged on the inner side of the rear joint.

[0030] In some embodiments, the walking mechanism further includes a side support rod connecting the front foot assembly and the rear foot assembly.

[0031] In some embodiments, the child carrier further includes a second lock and a second lock compression spring, the unlocking member has a receiving groove, the second lock is rotatably connected to the unlocking member, the first end of the second lock compression spring is connected to the second lock, the second end of the second lock compression spring is connected to the receiving groove and applies a force to the second lock away from the receiving groove, and when the child carrier switches from the safety seat mode to the stroller mode, the second lock overcomes the force of the second lock compression spring under the action of external force and rotates into the receiving groove.

[0032] In some embodiments, the child carrier also includes an unlocking handle arranged at the top of the unlocking member, the unlocking handle is supported on the back panel assembly, the first end of the unlocking handle is connected to the unlocking member, the second end of the unlocking handle is freely set, and the second end of the unlocking handle is configured to be lifted upward under the action of external force to move the unlocking member downward.

[0033] In some embodiments, the unlocking member is made of engineering plastic.

[0034] Based on the technical solution provided by the present invention, a child carrier includes a carrier body, a walking mechanism and an unlocking mechanism. The carrier body includes a back plate assembly and a seat plate assembly. The walking mechanism is connected to the carrier body and is unfolded or folded relative to the carrier body to switch the child carrier between a stroller mode and a safety seat mode. The walking mechanism includes a front foot assembly, a first locking mechanism, a rear foot assembly and a second locking mechanism. In the safety seat mode, the front foot assembly is locked with the carrier body through the first locking mechanism. The rear foot assembly is locked with the carrier body through the second locking mechanism. The unlocking mechanism includes an unlocking member. When the child carrier switches from the safety seat mode to the stroller mode, the unlocking member is configured to move in the longitudinal direction relative to the carrier body under the action of an external force, and the first locking mechanism and the second locking mechanism are unlocked synchronously during the movement. The unlocking member of the present invention moves in the longitudinal direction and can trigger the unlocking of both the first locking mechanism and the second locking mechanism during the movement. Therefore, when the user wants to switch the child carrier from the safety seat mode to the stroller mode, it is only necessary to control the unlocking member to move in the longitudinal direction. One action can simultaneously unlock the two locks, so it is easy to operate and improves the user's convenience.

[0035] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0037] Figure 1 FIG. 1 is a schematic diagram of a three-dimensional structure of a child carrier in a stroller mode according to an embodiment of the present invention at one angle.

[0038] Figure 2 FIG. 1 is a schematic three-dimensional structural diagram of the child carrier in the stroller mode according to an embodiment of the present invention from another angle.

[0039] Figure 3 FIG. 1 is a schematic diagram of a three-dimensional structure of a child carrier in a safety seat mode according to an embodiment of the present invention at one angle.

[0040] Figure 4 FIG. 1 is a schematic three-dimensional structural diagram of a child carrier in a safety seat mode according to an embodiment of the present invention from another angle.

[0041] Figure 5 FIG. 4 is a schematic diagram of the exploded structure of a child carrier according to an embodiment of the present invention.

[0042] Figure 6 Schematic diagram of the structure of the unlocking member of the child carrier according to an embodiment of the present invention.

[0043] Figure 7 FIG. 1 is a schematic diagram of the coordination between the child carrier body and the rear leg assembly when the child carrier according to an embodiment of the present invention is in a stroller mode.

[0044] Figure 8 The figure is a schematic side view of the back panel assembly of the children's carrier according to an embodiment of the present invention.

[0045] Fig. 9 Schematic diagram of the structure of a child carrier body and a rear leg assembly of an embodiment of the present invention.

[0046] Fig.10 Schematic diagram of the coordination structure of the child carrier body and the rear legs when the child carrier according to an embodiment of the present invention is in the stroller mode.

[0047] Fig.11 It is a schematic diagram of the matching structure of the front foot assembly and the seat plate assembly according to an embodiment of the present invention.

[0048] Fig.12 FIG. 1 is a side structural diagram of a child carrier according to an embodiment of the present invention in a stroller mode.

[0049] Fig.13 for Fig.12 A schematic cross-sectional structure diagram of the child carrier in the MM direction is shown.

[0050] Fig.14 FIG. 1 is a side structural schematic diagram of a child carrier in a safety seat mode according to an embodiment of the present invention.

[0051] Fig.15 for Fig.14 The child carrier shown is a schematic cross-sectional structure diagram of the child carrier in the NN direction.

[0052] Fig.16Schematic diagrams of the exploded structures of child carriers according to other embodiments of the present invention. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0056] like Figures 1 to 4As shown, the child carrier of some embodiments of the present invention includes a carrier body 100 and a running mechanism. The running mechanism is connected to the carrier body 100, and the running mechanism is unfolded or folded relative to the carrier body 100 to switch the child carrier between a stroller mode and a safety seat mode. Figure 1 and Figure 2 As shown, when the walking mechanism is unfolded relative to the carrier body 100, the child carrier switches to a stroller mode, and the user can push the child carrier on the ground. Figure 3 and Figure 4 As shown, when the walking mechanism is folded relative to the carrier body 100 , the child carrier switches to a safety seat mode. At this time, the user can install the child carrier on a car seat to use it as a safety seat.

[0057] The walking mechanism includes a front foot assembly 300 and a rear foot assembly 200. Figures 1 to 4 As shown, in the safety seat mode, the front leg assembly 300 is locked on the carrier body 100. The rear leg assembly 200 is locked on the carrier body 100. To switch the child carrier from the safety seat mode to the stroller mode, both the front leg assembly 300 and the rear leg assembly 200 need to be unlocked from the safety seat mode position to unfold.

[0058] In order to improve the operation convenience when the user switches modes, the child carrier 1000 of the embodiment of the present invention includes a carrier body 100, a walking mechanism and an unlocking mechanism. Figure 2 As shown, the carrier body 100 includes a back panel assembly 110 and a seat panel assembly 120. The walking mechanism is connected to the carrier body 100, and is unfolded or folded relative to the carrier body 100 to switch the child carrier between the stroller mode and the safety seat mode. The walking mechanism includes a front foot assembly 300, a first locking mechanism, a rear foot assembly 200, and a second locking mechanism. In the safety seat mode, the front foot assembly 300 is locked with the carrier body 100 by the first locking mechanism. The rear foot assembly 200 is locked with the carrier body 100 by the second locking mechanism. The unlocking mechanism includes an unlocking member 051. When the child carrier switches from the safety seat mode to the stroller mode, the unlocking member 051 is configured to move relative to the carrier body 100 along the longitudinal direction Y under the action of an external force, and the first locking mechanism and the second locking mechanism are unlocked during the movement.

[0059] The unlocking member 051 of the embodiment of the present invention moves along the longitudinal direction Y and can trigger the unlocking of both the first locking mechanism and the second locking mechanism during the movement. Therefore, when the user wants to switch the child carrier from the safety seat mode to the stroller mode, it is only necessary to control the unlocking member 051 to move along the longitudinal direction. One action can unlock the two locks, so the operation is convenient, which improves the user's convenience.

[0060] like Figure 2As shown, the carrier body 100 includes a back panel assembly 110 and a seat panel assembly 120. The back panel assembly 110 is disposed at the rear end of the seat panel assembly 120 for the child to lean on. The front foot assembly 300 is rotatably connected to the front end of the seat panel assembly 120. The rear foot assembly 200 is disposed on the back panel assembly 110. Figure 5 As shown, the longitudinal direction Y refers to the extension direction of the back plate assembly 110. The transverse direction X refers to the extension direction of the width direction of the back plate assembly 110 and / or the seat plate assembly 120. Figure 5 In the specific embodiment shown, the movement of the unlocking member 051 along the longitudinal direction Y means that the unlocking member 051 moves downward relative to the back panel assembly 110. The downward movement of the unlocking member 051 can unlock the first locking mechanism and the second locking mechanism, that is, the user only needs to push the unlocking member 051 downward to unlock the first locking mechanism and the second locking mechanism, thereby switching the child carrier from the safety seat mode to the stroller mode. Of course, after unlocking, the user also needs to move the rear foot assembly downward so that it moves from top to bottom along the side of the back panel assembly 110 to achieve deployment.

[0061] like Figure 1 and Figure 2 As shown, when the child carrier is in the stroller mode, one end of the front foot assembly 300 away from the seat plate assembly 120 contacts the ground to support the carrier body 100, and as shown in FIG. Figure 3 and Figure 4 As shown, when the child carrier is in the safety seat mode, the front foot assembly 300 is arranged on the side of the seat plate assembly 120 to complete the folding. At this time, in order to prevent the front foot assembly 300 from swinging downward under the action of gravity, the front foot assembly 300 is locked with the carrier body 100 through a first locking mechanism.

[0062] The first locking mechanism includes a groove arranged on one of the front leg tube 067 and the seat plate assembly 120 and a protrusion arranged on the other of the front leg tube 067 and the seat plate assembly 120. In the safety seat mode, the front leg tube 067 is rotated to the side of the seat plate assembly 120 and the protrusion is stuck in the groove to lock the front leg tube 067.

[0063] like Fig.11As shown, the front foot assembly 300 includes a front foot tube 067, a connecting tube 066 and a connecting limiter 065 which are arranged relatively to each other. A front caster is arranged at the bottom end of the front foot tube 067, and the top end of the front foot tube 067 is rotatably connected to the seat plate assembly 120. A connecting hole I extending in the transverse direction is arranged at the front end of the seat plate assembly 120. The connecting tube 066 is coaxially inserted into the connecting hole I. The top end of the front foot tube 067 is connected to the connecting tube 066. A groove H is arranged on the front foot tube 067. When the front foot tube 067 is rotated backward so that the front foot tube 067 is rotated to the side of the seat plate assembly 120, the groove H on the front foot tube 067 cooperates with the protrusion arranged on the seat plate assembly 120 to lock the position of the front foot tube 067.

[0064] In some other embodiments, a convex block may be provided on the front leg tube 067, and a concave groove may be provided on the seat plate assembly 120, so as to form a concave-convex matching first locking mechanism. Of course, in other embodiments, the first locking mechanism may also be other structures, such as a limit structure of a hook and a slot.

[0065] like Figure 5 As shown, in some embodiments, the back plate assembly 110 is provided with an unlocking slide groove D extending along the longitudinal direction Y. The unlocking member 051 is configured to slide in the unlocking slide groove D.

[0066] In some embodiments, the unlocking member 051 extends in the longitudinal direction Y. The unlocking mechanism also includes a first unlocking structure corresponding to the first locking mechanism and a second unlocking structure corresponding to the second locking mechanism, and the first unlocking structure and the second unlocking structure are located at different positions in the longitudinal direction Y. The first unlocking structure is used to unlock the first locking mechanism, and the first locking mechanism is used to lock the front foot assembly 300 and the seat plate assembly 120, so the position of the first locking mechanism is located on the seat plate assembly 120, then the first unlocking structure is also located on the seat plate assembly 120. The second unlocking structure is used to unlock the second locking mechanism, and the second locking mechanism is used to lock the rear foot assembly 200 and the back plate assembly 110, and the rear joint of the rear foot assembly 200 is locked at the upper end of the back plate assembly 110, so the second locking mechanism is set at a position close to the upper end of the back plate assembly 110, then the second unlocking structure is also set at a position close to the upper end of the back plate assembly 110. That is to say, the unlocking mechanism of the embodiment of the present invention includes the unlocking member 051 extending along the longitudinal direction Y and the first unlocking structure and the second unlocking structure set at different positions of the unlocking member 051.

[0067] like Figure 5 As shown, the unlocking member 051 includes an unlocking plate extending along the longitudinal direction Y. The unlocking plate is made of engineering plastics. Engineering plastics have stable performance in extreme temperature / humidity use environments, effectively ensuring the function of the unlocking member 051 under extreme working conditions.

[0068] In some embodiments, Figure 5 As shown, the first unlocking structure includes an unlocking rope 060 connected to the unlocking member 051 and a front foot unlocking member 058 connected to the end of the unlocking rope 060. The seat plate assembly 120 is provided with a first slide groove A extending along the transverse direction X. The front foot unlocking member 058 is configured to slide with the first slide groove A. When the unlocking member 051 moves along the longitudinal direction Y, the front foot unlocking member 058 is driven by the unlocking member Y to slide in the first slide groove A toward the transverse outer side to unlock the first locking mechanism.

[0069] like Figure 5 As shown, the first unlocking structure includes two unlocking ropes 060 and two front foot unlocking members 058 arranged opposite to each other. The first end of the unlocking rope 060 is connected to the unlocking member 051, and the second end of the unlocking rope 060 is connected to the front foot unlocking member 058. In this way, when the unlocking member 051 moves downward, the first end of the unlocking rope 060 will also move downward, and the overall length of the unlocking rope 060 is unchanged, so that the second end of the unlocking rope 060 also moves, thereby driving the front foot unlocking member 058 to move. The front foot unlocking member 058 is slidably matched with the first slide groove A, so the front foot unlocking member 058 will slide toward the lateral outer side along the first slide groove A driven by the unlocking rope 060. The front foot unlocking member 058 slides toward the lateral outer side in the first slide groove A, exerting an outward force on the front foot assembly 300 to make the front foot assembly 300 move toward the lateral outer side, thereby making the groove H set on the front foot tube 067 disengage from the match with the protrusion set on the seat plate assembly 120, thereby achieving the unlocking of the first locking mechanism. The forefoot assembly 300 can then be rotated downward to switch to stroller mode.

[0070] like Fig.11 As shown, in some embodiments, the front foot assembly 300 includes two front foot tubes 067 arranged opposite to each other. The front foot tube 067 is rotatably connected to the end of the seat plate assembly 120. The first locking mechanism includes a groove arranged on one of the front foot tube 067 and the seat plate assembly 120 and a protrusion arranged on the other of the front foot tube and the seat plate assembly 120. In the safety seat mode, the front foot tube 067 rotates to the side of the seat plate assembly 120 and the protrusion is clamped in the groove to lock the front foot tube 067. When the mode is switched, the front foot unlocking member 058 slides toward the lateral outside to push the front foot tube 067 away from the seat plate assembly 120 so as to disengage the protrusion and the groove.

[0071] like Figure 5As shown, the seat plate assembly 120 is provided with a first slide groove A that is slidably matched with the front foot unlocking member 058. The first slide groove A is formed by the inner cavity of a cylinder installed on the seat plate assembly 120. Moreover, the cylinder is axially penetrated so that the front foot unlocking member 058 passes through the inner cavity of the cylinder to the outside of the seat plate assembly 120 to push the front foot assembly 300. In other words, the first slide groove A extends all the way to the side of the seat plate assembly 120 so that the front foot unlocking member 058 can slide along the first slide groove A to the outside of the seat plate assembly 120 to push the front foot assembly 300.

[0072] Specifically, in some embodiments, the front foot unlocking member 058 is a square structure. Correspondingly, the inner cavity of the cylinder forming the first slide slot A is also a square cavity.

[0073] like Figure 5 , Fig.12 and Fig.13 As shown, in some embodiments, the first unlocking structure further includes a first compression spring 059 disposed between the end of the unlocking rope 060 and the front foot unlocking member 058. The first compression spring 059 applies a pulling force toward the lateral inner side to the front foot unlocking member 058. Then, when switching from the safety seat mode to the stroller mode, the unlocking member 051 moves downward under the action of an external force, and transmits the force to the front foot unlocking member 058 through the unlocking rope 060 to push the front foot unlocking member 058. It can be seen that the force needs to overcome the pulling force of the first compression spring 059 to push the front foot unlocking member 058. Correspondingly, after the external force on the unlocking member 051 is removed, the force on the front foot unlocking member 058 also disappears, and at this time the front foot unlocking member 058 can return to its position under the action of the first compression spring 059.

[0074] like Figure 1 and Figure 2 As shown, in the pushcart mode, one end of the rear foot assembly 200 away from the vehicle body 100 contacts the ground to support the vehicle body 100 together with the front foot assembly 300. Figure 3 , Figure 4 as well as Fig.14 and Fig.15 As shown, in the safety seat mode, the rear foot assembly 200 moves upward relative to the backboard assembly 110 to be folded on the side of the backboard assembly 110. At this time, in order to prevent the rear foot assembly 200 from falling downward under the action of gravity, the rear foot assembly 200 is locked with the backboard assembly 110 through a second locking mechanism.

[0075] like Figure 7As shown, the rear foot assembly 200 includes a rear foot tube 068 and a rear joint 064, and the second locking mechanism includes a rear foot assembly locking tooth 062 disposed on the inner side of the rear joint, a locking tooth boss 0621 disposed on the rear foot assembly locking tooth 062, and a locking bayonet disposed on the back plate assembly 110. In the safety seat mode, the unlocking rod 054 is disposed at the lower side of the locking bayonet to form a locking groove together with the locking bayonet, and the locking tooth boss 0621 is engaged in the locking groove. When the mode is switched, the unlocking rod 054 slides laterally inward in the second slide groove to release the locking tooth boss 0621. In this way, the rear foot assembly 200 can be locked in this position, thereby ensuring the stability of the child carrier in the safety seat mode.

[0076] In some embodiments, the unlocking mechanism also includes an unlocking rod compression spring 055 arranged at the inner end of the unlocking rod 054.

[0077] In some embodiments, the outer end of the unlocking rod 054 has a guiding slope. When the locking tooth boss 0621 moves upward, it slides to the locking groove under the guidance of the guiding slope of the unlocking rod 054, and the unlocking rod 054 is pushed out to the outside by the force of the unlocking rod compression spring 055 to complete the locking.

[0078] like Figure 1 and Figure 2 As shown, when the child carrier is in the stroller mode, the rear leg assembly 200 is located at the lower side of the backboard assembly 110. The rear leg assembly 200 is locked with the backboard assembly 110 through a third locking mechanism. Figure 2 and Figure 3 It can be seen that in the stroller mode, the rear foot assembly 200 is located below the backboard assembly 110, and the rear joint of the rear foot assembly 200 is located at the lower end of the backboard assembly 110. In the safety seat mode, the rear foot assembly 200 is folded at the side of the backboard assembly 110, and the rear joint of the rear foot assembly 200 is located at the upper end of the backboard assembly 110. In other words, in the stroller mode and the safety seat mode, the position of the rear joint of the rear foot assembly 200 relative to the backboard assembly 110 is different. In order to ensure the stability of the child carrier structure in different modes, the second locking mechanism is used to lock the rear foot assembly 200 below the backboard assembly 110. The third locking mechanism is used to lock the rear foot assembly 200 at the side of the backboard assembly 110.

[0079] like Figure 7 As shown, the rear foot assembly 200 includes a rear foot tube 068 and a rear joint 064. The third locking mechanism includes a rear foot assembly locking tooth 063 disposed inside the rear joint 064. A back plate locking tooth 110a is disposed at the bottom end of the side of the back plate assembly 110. In the stroller mode, the rear foot assembly locking tooth 063 is engaged with the back plate locking tooth 110a.

[0080] Corresponding to the two different positions of the rear foot assembly 200 in the safety seat mode and the stroller mode, the rear foot assembly 200 is locked by the second locking mechanism and the third locking mechanism respectively. Accordingly, the unlocking mechanism of the embodiment of the present invention includes a second unlocking structure corresponding to the second locking mechanism and a third unlocking structure corresponding to the third locking structure. The structure and working process of the second unlocking structure and the third unlocking structure are described in detail below. In some embodiments, Figure 5 and 6 As shown, the unlocking member 051 has a first abutting surface 051a. Figure 5 As shown, the second unlocking structure includes an unlocking rod 054 extending in the transverse direction. A second slide groove B extending in the transverse direction X is provided on the back plate assembly 110, and the unlocking rod 054 is configured to slide with the second slide groove B. When the unlocking member 051 moves in the longitudinal direction Y, the unlocking rod 054 slides inwardly in the second slide groove B under the contact of the first contact surface 051a to unlock the second locking mechanism.

[0081] like Fig. 9 and Fig.10 As shown, the second locking mechanism includes a rear foot group locking tooth 062 disposed on the inner side of the rear joint 064, a locking tooth boss 0621 disposed on the rear foot group locking tooth 062, and a locking bayonet disposed on the back plate assembly 110. In the safety seat mode, the unlocking rod 054 is disposed at the lower side of the locking bayonet to form a locking groove together with the locking bayonet, and the locking tooth boss 0621 is engaged in the locking groove. When the mode is switched, the unlocking rod 054 slides inwardly in the second slide groove Y to make the locking tooth boss 0621 disengage from the locking groove, thereby unlocking the second locking mechanism.

[0082] Specifically in the present embodiment, the unlocking rod 054 moves under the abutment of the first abutting surface 051a. The first abutting surface 051a includes an inclined surface, and the end of the unlocking rod 054 abuts against the inclined surface. The upper end of the abutting surface is closer to the middle part, and the lower end of the abutting surface is away from the middle part. In other words, the distance between the upper end of the abutting surface and the center line of the unlocking member 051 is smaller than the distance between the lower end of the abutting surface and the center line of the unlocking member 051. In this way, when the unlocking member 051 moves downward, the unlocking rod 054 moves inwardly driven by the abutting surface, thereby causing the unlocking tooth boss 0621 to disengage from the locking groove. In this way, the rear foot assembly 200 can move downward and switch to the stroller mode.

[0083] In some embodiments, the unlocking member 051 includes a locking hole. A locking block is disposed at the end of the unlocking rod 054. The locking hole has an inclined surface, and the locking block is locked on the inclined surface.

[0084] like Figure 6As shown, the unlocking member 051 includes a triangular clamping hole. Specifically, the triangular clamping hole is a right-angled triangular clamping hole. The hypotenuse of the right-angled triangular clamping hole forms the above-mentioned abutment surface.

[0085] In order to reduce weight, the unlocking member 051 is provided with a plurality of weight reducing holes.

[0086] In some embodiments, the rear foot assembly 200 includes a rear foot tube 068 and a rear joint 064. The second locking mechanism includes a rear foot assembly locking tooth 062 disposed inside the rear joint 064, a locking tooth boss 0621 disposed on the rear foot assembly locking tooth 062, and a locking bayonet disposed on the back plate assembly 110. In the safety seat mode, the unlocking rod 054 is disposed at the lower side of the locking bayonet to form a locking groove together with the locking bayonet, and the locking tooth boss 0621 is engaged in the locking groove. The locking bayonet includes two side walls perpendicular to each other. Specifically in this embodiment, the lateral outer side and the lower end of the locking bayonet are both provided with openings. In this way, when switching from the stroller mode to the safety seat mode, the rear foot assembly 200 can be pushed into the locking bayonet, and the unlocking rod 054 is subjected to the force of the unlocking rod compression spring 055 toward the lateral outer side and will be stuck on the lower side of the locking bayonet. In this way, the locking tooth boss 0621 is stuck in the locking bayonet. When the unlocking member 051 moves downward, the unlocking rod 054 moves laterally inward to release the locking tooth boss 0621 so that the rear foot assembly 200 can move downward to switch to the stroller mode.

[0087] like Figure 5 As shown, the unlocking mechanism of the embodiment of the present invention further includes an unlocking rod compression spring 055 arranged at the inner end of the unlocking rod 054. And the unlocking rod 054 includes a bent rod. The unlocking rod 054 includes a first rod segment and a second rod segment, wherein the first rod segment is arranged on the lateral outer side, the second rod segment is arranged on the lateral inner side, and the second rod segment is bent forward relative to the first rod segment. "Front" refers to the direction of the seat plate assembly 120 relative to the back plate assembly 110. The unlocking rod compression spring 055 is arranged on the inner side of the first rod segment.

[0088] In some embodiments, the walking mechanism includes a third locking mechanism. In the stroller mode, the rear foot assembly 200 is locked with the carrier body 100 through the third locking mechanism, and when the child carrier is switched from the stroller mode to the safety seat mode, the unlocking member 051 is configured to move relative to the carrier body 100 along the longitudinal direction Y under the action of an external force to unlock the third locking mechanism.

[0089] That is to say, whether the child carrier of the embodiment of the present invention is switched from the stroller mode to the safety seat mode or from the safety seat mode to the stroller mode, the unlocking is achieved by operating the unlocking member 051 to move downward, so it is more convenient for users to use.

[0090] In some embodiments, the unlocking mechanism further includes a third unlocking structure arranged corresponding to the third locking mechanism. Figure 6 As shown, the unlocking member 051 has a second abutting surface 051b. Figure 5 As shown, the third unlocking structure includes an unlocking push block 057. A third slide groove C extending along the transverse direction X is provided on the back plate assembly 110, and the unlocking push block 057 is configured to slide with the third slide groove C. When the unlocking member 051 moves along the longitudinal direction Y, the unlocking push block 057 slides laterally outward in the third slide groove C under the abutment of the second abutting surface 051b to unlock the third locking mechanism.

[0091] In some embodiments, the rear foot assembly 200 includes a rear foot tube 068 and a rear joint 064. The rear foot tube 068 is rotatably connected to the back plate assembly 110 through the rear joint 064. The third locking mechanism includes a rear foot assembly locking tooth 062 disposed on the inner side of the rear joint 064 and a back plate locking groove 110a disposed on the back plate assembly 110. In the stroller mode, the rear foot assembly locking tooth 062 and the back plate locking groove 110a are engaged. When the mode is switched, the unlocking push block 057 slides laterally outward in the third slide groove to push the rear joint away from the back plate assembly.

[0092] The rear foot assembly locking teeth 062 are disc-shaped structures. A plurality of locking teeth are arranged on the disc-shaped structure. Correspondingly, a plurality of locking grooves corresponding to the plurality of locking teeth are arranged on the back plate locking groove 110a. The unlocking push block 057 slides laterally outward under the abutment of the second abutting surface 051b to push the rear joint open to achieve unlocking.

[0093] In some embodiments, the unlocking push block 057 includes a push block body and a push rod disposed on the push block body. The push rod passes through the side of the back plate assembly 110 to push the rear foot assembly 200 in a direction away from the back plate assembly to unlock the third locking mechanism. In other words, a through hole is provided in the portion of the back plate assembly 110 where the back plate locking groove 110a is provided. The position of the through hole is provided corresponding to the position of the push rod, so that when the push block body moves laterally outward under the abutment of the second abutment surface, the push rod will also follow and move laterally outward, thereby allowing the push rod to pass through the through hole to the outside of the back plate assembly 110, thereby achieving the pushing of the rear joint of the rear foot assembly 200.

[0094] Specifically, Figure 5 As shown, the unlocking push block 057 includes two push rods arranged on the push block body. The two push rods apply force to the rear joint at the same time, thereby improving the uniformity of the force applied to the rear joint.

[0095] In some embodiments, the third locking structure further comprises a second compression spring 056 disposed on a side of the unlocking push block 057 away from the second abutting surface 051b. The second compression spring 056 is used to set a force on the unlocking push block 057 toward the lateral inner side so that the unlocking push block 057 can return to its original position under the force of the second compression spring 056.

[0096] In some embodiments, the second abutment surface 051b includes an inclined surface. Figure 6 As shown, the distance between the bottom end of the second abutting surface 051b and the center line of the unlocking member 051 is smaller than the distance between the top end of the second abutting surface 051b and the center line of the unlocking member 051. In this way, when the unlocking member 051 moves downward, the portion of the second abutting surface 051b abutting against the unlocking push block 057 moves further and further away from the center line, thus pushing the unlocking push block 057 to a position further and further away from the center line.

[0097] like Figure 6 As shown, the second abutting surface 051 b refers to the lowermost portion of the unlocking member 051 .

[0098] like Figure 5 As shown, the unlocking push block 057 includes an inclined surface. The side surface of the unlocking push block 057 that abuts against the second abutting surface is also an inclined surface.

[0099] contrast Figure 2 and Figure 3 It can be seen that in the stroller mode, the rear leg assembly 200 is located below the backboard assembly 110, and the rear joint of the rear leg assembly 200 is located at the lower end of the backboard assembly 110. In the safety seat mode, the rear leg assembly 200 is folded at the side of the backboard assembly 110, and the rear joint of the rear leg assembly 200 is located at the upper end of the backboard assembly 110. In some embodiments, when the child carrier switches from the stroller mode to the safety seat mode, the rear leg assembly 200 is configured to move upward along the side of the backboard assembly 110.

[0100] like Figure 8 As shown, in some embodiments, a fourth slide groove E and a fifth slide groove F are provided on the side of the back panel assembly 110. The fourth slide groove E is inclined toward the rear side relative to the fifth slide groove F, and the rear foot assembly 200 is configured to move along the fourth slide groove E and the fifth slide groove F. The fourth slide groove E is arranged to be inclined toward the rear side relative to the fifth slide groove F, so that the rear foot assembly 200 has a tendency to move backward as a whole during the upward movement, thereby preventing the rear foot assembly 200 from being arranged on the side of the back panel assembly 110 and affecting the child passenger.

[0101] In some embodiments, the rear foot assembly 200 includes a rear foot tube 068 and a rear joint 064. The inner side of the rear joint 064 is provided with a slider 061 that is slidably matched with the fourth slide groove E and a locking tooth boss 0621 that is slidably matched with the fifth slide groove F. The locking tooth boss 0621 is provided on the locking tooth 062 of the rear foot assembly.

[0102] like Figure 1 As shown, in some embodiments, the walking mechanism further includes a side support rod 400 connecting the front foot assembly 300 and the rear foot assembly 200. The first end of the side support rod 400 is rotatably connected to the front foot assembly 300, and the second end of the side support rod 400 is rotatably connected to the rear foot assembly 200. In this way, when the user pushes the front foot assembly 300 to rotate, the force can be transmitted to the rear foot assembly 200 through the side support rod 400, so that the rear foot assembly 200 also moves upward synchronously, so that the user can achieve the synchronous folding of the front foot assembly 300 and the rear foot assembly 200 in one action, further improving the convenience of operation.

[0103] like Figure 5 As shown, in some embodiments, the child carrier further includes a second lock 053 and a second lock compression spring 052. The unlocking member 051 has a receiving groove. The second lock 053 is rotatably connected to the unlocking member 051. The first end of the second lock compression spring 052 is connected to the second lock 053, and the second end of the second lock compression spring 052 is connected to the receiving groove and applies a force to the second lock 053 away from the receiving groove. When the child carrier switches from the safety seat mode to the stroller mode, the second lock 053 overcomes the force of the second lock compression spring 052 under the action of an external force and rotates into the receiving groove. The setting of the second lock 053 can prevent users from operating it incorrectly.

[0104] Specifically, the second lock 053 will rotate to the outside of the receiving groove under the action of the second lock compression spring 052, that is, it will exceed the edge of the unlocking member 051. In this way, if the user directly presses down the unlocking member 051, the second lock 053 exceeds the boundary of the unlocking slot D, so that the unlocking member 051 cannot move downward and thus cannot be unlocked. When the user really wants to switch the use mode of the child carrier, the user needs to overcome the force of the second lock compression spring 052 to press the second lock 053 back into the receiving groove, and then press down the unlocking member 051 to unlock.

[0105] like Fig.16As shown, in other embodiments, the child carrier further includes an unlocking handle 085 disposed at the top of the unlocking member 088, the fulcrum of the unlocking handle 085 is supported on the back plate assembly 110, the first end of the unlocking handle 085 is connected to the unlocking member 088, the second end of the unlocking handle 085 is freely disposed, and the second end of the unlocking handle 085 is configured to be lifted upward under the action of an external force to move the unlocking member 085 downward. And the distance between the first end of the unlocking handle 085 and the fulcrum is smaller than the distance between the second end of the unlocking handle 085 and the fulcrum. In this way, a labor-saving lever structure is formed by adding the unlocking handle 085, thereby improving the comfort of user operation.

[0106] The child carrier also includes an unlocking handle positioning member 081, an unlocking handle connecting pin 082, a second lock compression spring 083, a second lock button 084, an unlocking handle connecting block 085, and an unlocking handle connecting block connecting pin 087. The unlocking handle 085 is connected to the unlocking member 088 through the unlocking handle connecting block 086 and the unlocking handle connecting block connecting pin 087. The unlocking handle 085 is connected to the unlocking handle positioning member 081 through the unlocking handle connecting pin 082, and the unlocking handle positioning member 081 is locked to the back plate assembly 110 through a fastener. When the mode switching is required, the second lock button 084 is first operated in the horizontal direction to unlock the second lock, and the unlocking handle 085 is pulled upward. At this time, the unlocking handle 085 pushes the unlocking handle connecting block 086, and the unlocking handle connecting block 086 pushes the unlocking member 088 to complete the unlocking.

[0107] like Figure 1 As shown, the child carrier according to the embodiment of the present invention further includes a push rod 500. The push rod 500 is detachably connected to the backboard assembly 110 so as to be pushed by the user in the stroller mode.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A child carrier, characterized in that: include: The carrier body (100) comprises a back plate assembly (110) and a seat plate assembly (120); a walking mechanism connected to the carrier body (100) and unfolded or folded relative to the carrier body (100) so that the child carrier (1000) can be switched between a stroller mode and a safety seat mode, the walking mechanism comprising a front foot assembly (300), a first locking mechanism, a rear foot assembly (200) and a second locking mechanism; in the safety seat mode, the front foot assembly (300) is locked with the carrier body (100) via the first locking mechanism, and the rear foot assembly (200) is locked with the carrier body (100) via the second locking mechanism; and The unlocking mechanism comprises an unlocking member (051). When the child carrier (1000) switches from the safety seat mode to the stroller mode, the unlocking member (051) is configured to move relative to the carrier body (100) along a longitudinal direction (Y) under the action of an external force, and during the movement, the first locking mechanism and the second locking mechanism are synchronously unlocked.

2. The child carrier according to claim 1, characterized in that: The back panel assembly (110) is provided with an unlocking slide groove (D) extending along the longitudinal direction (Y), and the unlocking member (051) is configured to slide in the unlocking slide groove (D).

3. The child carrier according to claim 1, characterized in that: The unlocking member (051) extends in the longitudinal direction (Y), and the unlocking mechanism also includes a first unlocking structure corresponding to the first locking mechanism and a second unlocking structure corresponding to the second locking mechanism, and the first unlocking structure and the second unlocking structure are located at different positions in the longitudinal direction (Y).

4. The child carrier according to claim 3, characterized in that: The first unlocking structure includes an unlocking rope (060) connected to the unlocking member (051) and a front foot unlocking member (058) connected to the end of the unlocking rope (060); a first slide groove (A) extending along the transverse direction (X) is provided on the seat plate assembly (120); the front foot unlocking member (058) is configured to slide with the first slide groove (A); when the unlocking member (051) moves along the longitudinal direction (Y), the front foot unlocking member (058) is driven by the unlocking member (051) to slide laterally outward in the first slide groove (A) to unlock the first locking mechanism.

5. The child carrier according to claim 4, characterized in that: The front foot assembly (300) includes two front foot tubes (067) arranged opposite to each other, and the front foot tubes (067) are rotatably connected to the end of the seat plate assembly (120). The first locking mechanism includes a groove arranged on one of the front foot tube (067) and the seat plate assembly (120) and a protrusion arranged on the other of the front foot tube (067) and the seat plate assembly (120). In the safety seat mode, the front foot tube (067) rotates to the side of the seat plate assembly (120) and the protrusion is clamped in the groove to lock the front foot tube (067). When the mode is switched, the front foot unlocking member (058) slides laterally outward to push the front foot tube (067) away from the seat plate assembly (120) so as to disengage the protrusion from the groove.

6. The child carrier according to claim 4, characterized in that: The first unlocking structure also includes a first compression spring (059) arranged between the end of the unlocking rope (060) and the forefoot unlocking member (058).

7. The child carrier according to claim 3, characterized in that: The unlocking member (051) has a first abutting surface (051a), the second unlocking structure includes an unlocking rod (054) extending in the transverse direction, and the back panel assembly (110) is provided with a second slide groove (B) extending in the transverse direction, and the unlocking rod (054) is configured to slide with the second slide groove (B). When the unlocking member (051) moves along the longitudinal direction (Y), the unlocking rod (054) slides laterally inward in the second slide groove (B) under the abutment of the first abutting surface (051a) to unlock the second locking mechanism.

8. The child carrier according to claim 7, characterized in that: The first abutting surface (051a) includes an inclined surface, and the end of the unlocking rod (054) abuts against the inclined surface.

9. The child carrier according to claim 8, characterized in that: The unlocking member comprises a locking hole, a locking block is arranged at the end of the unlocking rod (054), the locking hole has the inclined surface, and the locking block is locked on the inclined surface.

10. The child carrier according to claim 7, characterized in that: The rear foot assembly (200) comprises a rear foot tube (068) and a rear joint (064); the second locking mechanism comprises a rear foot assembly locking tooth (062) arranged on the inner side of the rear joint, a locking tooth boss (0621) arranged on the rear foot assembly locking tooth (062) and a locking bayonet arranged on the back plate assembly 110; in the safety seat mode, the unlocking rod (054) is arranged on the lower side of the locking bayonet to form a locking groove together with the locking bayonet; the locking tooth boss (0621) is engaged in the locking groove; when the mode is switched, the unlocking rod (054) slides laterally inward in the second sliding groove to release the locking tooth boss (0621).

11. The child carrier according to claim 10, characterized in that: The unlocking mechanism also includes an unlocking rod compression spring (055) arranged at the inner end of the unlocking rod (054).

12. The child carrier according to claim 10, characterized in that: The outer end of the unlocking rod (054) has a guiding inclined surface.

13. The child carrier according to claim 1, characterized in that: The walking mechanism comprises a third locking mechanism. In the stroller mode, the rear foot assembly (200) is locked with the carrier body (100) via the third locking mechanism. When the child carrier switches from the stroller mode to the safety seat mode, the unlocking member (051) is configured to move in a longitudinal direction relative to the carrier body (100) under the action of an external force so as to unlock the third locking mechanism.

14. The child carrier according to claim 13, characterized in that: The unlocking mechanism also includes a third unlocking structure arranged corresponding to the third locking mechanism, the unlocking member has a second abutting surface (051b), the third unlocking structure includes an unlocking push block (057), and the back panel assembly (110) is provided with a third slide groove (C) extending along the transverse direction, and the unlocking push block (057) is configured to slide with the third slide groove (C). When the unlocking member moves along the longitudinal direction, the unlocking push block (057) slides laterally outward in the third slide groove under the abutment of the second abutting surface (051b) to unlock the third locking mechanism.

15. The child carrier according to claim 14, characterized in that: The third locking structure further comprises a second compression spring (056) arranged on a side of the unlocking push block (057) away from the second abutting surface (051b).

16. The child carrier according to claim 14, characterized in that: The second abutting surface includes an inclined surface; and / or the unlocking push block includes an inclined surface.

17. The child carrier according to claim 14, characterized in that: The rear foot assembly (200) includes a rear foot tube and a rear joint, and the rear foot tube is rotatably connected to the back plate assembly through the rear joint. The third locking mechanism includes a first locking tooth arranged on the inner side of the rear joint and a third locking tooth arranged on the back plate assembly. In the stroller mode, the first locking tooth and the third locking tooth are engaged. When the mode is switched, the unlocking push block (057) slides laterally outward in the third slide groove to push the rear joint away from the back plate assembly.

18. The child carrier according to claim 13, characterized in that: The unlocking push block (057) comprises a push block body and a push rod arranged on the push block body, wherein the push rod passes through the side of the back plate assembly to push the rear foot assembly (200) in a direction away from the back plate assembly to unlock the third locking mechanism.

19. The child carrier according to claim 1, characterized in that: When the child carrier switches from the stroller mode to the safety seat mode, the rear leg group (200) is configured to move upward along the side of the back panel assembly.

20. The child carrier according to claim 19, characterized in that: A fourth slide groove (E) and a fifth slide groove (F) are provided on the side of the back panel assembly, the fourth slide groove (E) is inclined outward relative to the fifth slide groove (F), and the rear foot group (200) is configured to move along the fourth slide groove (E) and the fifth slide groove (F).

21. The child carrier according to claim 20, characterized in that: The rear foot assembly (200) comprises a rear foot tube and a rear joint, wherein the inner side of the rear joint is provided with a sliding block (061) slidably matched with the fourth sliding groove (E) and a sliding boss (0621) slidably matched with the fifth sliding groove (F).

22. The child carrier according to claim 1, characterized in that: The walking mechanism further comprises a side support rod (400) connecting the front foot assembly (300) and the rear foot assembly (200).

23. The child carrier according to claim 1, characterized in that: The child carrier further comprises a second lock (053) and a second lock compression spring (052); the unlocking member (051) has a receiving groove; the second lock (053) is rotatably connected to the unlocking member (051); a first end of the second lock compression spring (052) is connected to the second lock (053); a second end of the second lock compression spring (052) is connected to the receiving groove and applies a force to the second lock (053) away from the receiving groove; when the child carrier switches from the safety seat mode to the stroller mode, the second lock (053) overcomes the force of the second lock compression spring (052) under the action of an external force and rotates into the receiving groove.

24. The child carrier according to claim 1, characterized in that: The child carrier also includes an unlocking handle arranged at the top of the unlocking member, the unlocking handle is supported on the back panel assembly, the first end of the unlocking handle is connected to the unlocking member, the second end of the unlocking handle is freely set, and the second end of the unlocking handle is configured to be lifted upward under the action of an external force to move the unlocking member downward.

25. The child carrier according to claim 1, characterized in that: The unlocking piece is made of engineering plastics.