Baby carrier

Abstract

The invention relates to a baby carrier which comprises a handrail fixing seat, a seat fixing seat, a connecting fixing seat, a first locking mechanism and a frame assembly, the handrail fixing seat, the seat fixing seat and the connecting fixing seat are coaxially pivoted, the connecting fixing seat is connected to the frame assembly, and the first locking mechanism has a locking state and an unlocking state. The armrest fixing seat rotates to enable the first locking mechanism to be converted into an unlocking state from a locking state, when the first locking mechanism is in the locking state, the seat fixing seat and the connecting fixing seat are relatively fixed, and when the first locking mechanism is in the unlocking state, the seat fixing seat and the connecting fixing seat rotate relatively. The folding process of the seat and the frame assembly of the baby carrier can be well controlled, and the baby carrier is convenient to use and higher in safety.

Description

[0001] This application is a divisional application of Chinese patent application No. 2021113289698, filed on November 10, 2021, entitled “Infant Vehicle”. Technical Field

[0002] This invention relates to the technical field of vehicles, and in particular to an infant vehicle. Background Technology

[0003] Currently, most baby carriers on the market, such as strollers, fold down with the seat along with the frame assembly to reduce the overall size. Typically, folding down the backrest triggers the seat release mechanism, allowing the seat to rotate relative to the frame. However, this method can lead to the seat accidentally folding down while adjusting the backrest. Some baby carriers allow the backrest to be folded down to a certain angle first, followed by a separate release mechanism. However, with this method, the release mechanism driven by the backrest adjustment and the release mechanism driven by the separate mechanism are the same part, making manufacturing difficult to control. This can result in the seat releasing automatically when the backrest is folded down, causing inconvenience. Summary of the Invention

[0004] This invention provides an infant carrier whose seat and frame components have better control over the folding process, making it convenient to use and safer.

[0005] An infant vehicle includes an armrest fixing seat, a seat fixing seat, a connecting fixing seat, a first locking mechanism, and a frame assembly. The armrest fixing seat, the seat fixing seat, and the connecting fixing seat are coaxially pivotally connected. The connecting fixing seat is connected to the frame assembly. The first locking mechanism has a locked state and an unlocked state. Rotation of the armrest fixing seat causes the first locking mechanism to change from the locked state to the unlocked state. In the locked state, the seat fixing seat and the connecting fixing seat are relatively fixed. In the unlocked state, the seat fixing seat and the connecting fixing seat rotate relative to each other.

[0006] In the aforementioned infant carrier, the armrest fixing seat, seat fixing seat, and connecting fixing seat are sequentially and coaxially pivotally connected. The armrest fixing seat and seat fixing seat are fixed to the frame assembly via the connecting fixing seat. That is, when the armrest support rod and seat support rod are connected to the armrest fixing seat and seat fixing seat respectively, the armrest support rod and seat support rod are fixed to the frame assembly. The first locking mechanism can be used to control the relative fixation and relative rotation between the seat fixing seat and the connecting fixing seat, i.e., to control the relative fixation and relative rotation between the seat support rod and the frame assembly. When the infant carrier needs to be folded, rotating the armrest fixing seat will change the first locking mechanism from a locked state to an unlocked state, thus releasing the lock between the seat support rod and the frame assembly. The seat support rod can then rotate and fold, thereby folding the entire seat, resulting in a smaller overall size of the infant carrier after folding. This method of rotating the armrest fixing seat (i.e., rotating the armrest support rod) to fold the seat provides better process control and is more convenient to use compared to the traditional method of folding the seat support rod by rotating the back support rod. It also avoids the situation where directly folding the back support rod will release the seat support rod, thus ensuring a higher safety factor.

[0007] In one embodiment, the first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on one of the connecting fixing seat and the seat fixing seat, and the first locking groove is disposed on the other of the connecting fixing seat and the seat fixing seat. Rotation of the armrest fixing seat disengages the first locking member from the first locking groove. (Parental Claim 2)

[0008] In one embodiment, the first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on the connecting fixing seat and reciprocates in a direction that approaches or moves away from the seat fixing seat. The first locking groove is disposed on the seat fixing seat. The armrest fixing seat rotates to move the first locking member away from the seat fixing seat so that the first locking member is disengaged from the first locking groove.

[0009] In one embodiment, the first locking mechanism further includes a drive member, which is rotated by the armrest mounting to push the first locking member away from the seat mounting to disengage from the first locking groove.

[0010] In one embodiment, the armrest fixing seat has a first pushing slope, one end of the driving member has a second pushing slope that cooperates with the first pushing slope, and the other end of the driving member abuts against the first locking member.

[0011] In one embodiment, the first locking mechanism further includes a first elastic member, the two ends of which abut against the first locking member and the connecting fixing seat, respectively, and the first elastic member causes the first locking member to move constantly in the direction of the first locking groove.

[0012] In one embodiment, the first locking element is a gear, and the first locking groove is a gear groove that engages with the gear.

[0013] In one embodiment, the infant carrier further includes a second locking mechanism and a first frame mounting base and a second frame mounting base pivotally connected to each other. The second locking mechanism has a locked state and an unlocked state. The armrest mounting base rotates to change the second locking mechanism from the locked state to the unlocked state. In the locked state, the first frame mounting base and the second frame mounting base are fixed relative to each other. In the unlocked state, the first frame mounting base and the second frame mounting base rotate relative to each other.

[0014] In one embodiment, the second locking mechanism includes a second locking member, a second locking groove, and a third locking groove. The first frame mounting base is provided with the second locking groove, and the second frame mounting base is provided with the third locking groove. The second locking groove is simultaneously locked and engaged with the second locking groove and the third locking groove. The armrest mounting base rotates to drive the second locking member to disengage from one of the second locking groove and the third locking groove, so that the second locking mechanism changes from a locked state to an unlocked state.

[0015] In one embodiment, the second locking mechanism further includes a frame release member mounted on the first frame mounting base. The frame release member includes a release body and a release protrusion connected to each other. The release body is located on the side of the first frame mounting base facing away from the second frame mounting base. The first frame mounting base has a release hole. The release protrusion passes through the release hole and abuts against the second locking member. The armrest mounting base rotates to cause the release protrusion to push the second locking member away from the second locking groove.

[0016] In one embodiment, the first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on the connecting fixing seat and reciprocates in a direction toward or away from the seat fixing seat. The first locking groove is disposed on the seat fixing seat. The second locking mechanism further includes a pushing member, which is fixed to the first locking member. The connecting fixing seat is provided with a pushing hole. The armrest fixing seat rotates to drive the first locking member to move away from the seat fixing seat, so that the pushing member passes through the pushing hole and pushes against the frame release member.

[0017] In one embodiment, the second locking mechanism includes a frame release member and a pusher member. The frame release member is mounted on the first frame mounting base. The armrest mounting base rotates to drive the pusher member to push against the frame release member, thereby releasing the second locking mechanism.

[0018] In one embodiment, the second locking mechanism further includes a second elastic member, the two ends of which abut against the second locking member and the second frame fixing seat, respectively, and the second elastic member causes the second locking member to move constantly toward the second locking groove.

[0019] In one embodiment, the connecting mounting base and the first frame mounting base are detachably connected.

[0020] In one embodiment, the connecting fixing seat is provided with a locking member, and the first frame fixing seat is provided with a locking hole that cooperates with the locking member.

[0021] In one embodiment, the connection mounting base further includes a connection release member that is driven to cause the engaging member to retract away from the first frame mounting base and disengage from the engaging hole.

[0022] In one embodiment, the infant carrier further includes a backrest fixing seat and a third locking mechanism. The armrest fixing seat, the backrest fixing seat, the seat fixing seat, and the connected fixing seat are coaxially pivotally connected. The backrest fixing seat rotates relative to the armrest fixing seat to a first position, and the armrest fixing seat is locked to the seat fixing seat by the third locking mechanism. The backrest fixing seat rotates relative to the armrest fixing seat to a second position, and the third locking mechanism releases the lock on the armrest fixing seat and the seat fixing seat.

[0023] In one embodiment, the third locking mechanism includes a first locking part disposed on the armrest fixing seat and a second locking part disposed on the seat fixing seat. When the backrest fixing seat rotates relative to the armrest fixing seat to a first position, the first locking part and the second locking part are locked together. When the backrest fixing seat rotates relative to the armrest fixing seat to a second position, the first locking part and the second locking part are disengaged.

[0024] In one embodiment, the first locking part is a locking block disposed on the armrest fixing seat, and the second locking part is a locking groove disposed on the seat fixing seat and cooperating with the locking block.

[0025] In one embodiment, the infant carrier further includes a backrest fixing seat and a fourth locking mechanism, the fourth locking mechanism locking the armrest fixing seat and the seat fixing seat; the backrest fixing seat rotates relative to the armrest fixing seat to a second position, and the fourth locking mechanism is operated so that the armrest fixing seat and the seat fixing seat rotate relative to each other.

[0026] In one embodiment, the fourth locking mechanism includes a third locking part disposed on the armrest fixing seat and a fourth locking part disposed on the seat fixing seat. The third locking part is operated to cooperate with the fourth locking part to lock or unlock, or the fourth locking part is operated to cooperate with the third locking part to lock or unlock.

[0027] In one embodiment, the third locking part is a locking pin movably disposed on the armrest fixing seat, and the fourth locking part is a fourth locking groove disposed on the seat fixing seat and cooperating with the locking pin.

[0028] In one embodiment, the infant carrier further includes an armrest support rod and a seat support rod, the armrest support rod and the seat support rod being connected to the armrest fixing seat and the seat fixing seat, respectively. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the infant carrier according to an embodiment of the present invention, in which the infant carrier is in the unfolded state;

[0030] Figure 2 for Figure 1 The diagram shown is a partial structural schematic of an infant vehicle omitting the seat assembly.

[0031] Figure 3 for Figure 2 Exploded view;

[0032] Figure 4 for Figure 1 The diagram shown is a partial structural schematic of the infant vehicle without the frame assembly.

[0033] Figure 5 for Figure 4 A structural diagram from another perspective;

[0034] Figure 6 for Figure 4 A structural diagram from yet another perspective;

[0035] Figure 7 for Figure 4 Partial exploded view;

[0036] Figure 8 for Figure 7 Enlarged view of point A;

[0037] Figure 9 for Figure 4 The diagram shown is a partially exploded view of the structure in another state, where the infant carrier is partially folded.

[0038] Figure 10 for Figure 9 Enlarged view of point B;

[0039] Figure 11 for Figure 9 Side view;

[0040] Figure 12 for Figure 9 Another exploded view of the structure shown;

[0041] Figure 13 for Figure 12 Enlarged view of point C;

[0042] Figure 14 for Figure 4 Partial exploded view;

[0043] Figure 15 for Figure 14 Enlarged view of point D;

[0044] Figure 16 for Figure 6 Exploded view;

[0045] Figure 17 for Figure 16 Enlarged view of point G;

[0046] Figure 18 for Figure 17 A schematic diagram of the handrail fixing base in the structure shown;

[0047] Figure 19 for Figure 17 A schematic diagram of the connecting fixing seat and the first locking member in the structure shown;

[0048] Figure 20 for Figure 17 A schematic diagram of the connecting fixing seat in the structure shown from another perspective;

[0049] Figure 21 for Figure 1 The image shows a side view of the infant vehicle in its unfolded state.

[0050] Figure 22 for Figure 1 The image shows a side view of the infant carrier, which is in a partially folded state.

[0051] Figure 23 for Figure 1 The image shows a side view of the infant carrier, which is in a folded-up state.

[0052] Figure 24 for Figure 21 MM section view;

[0053] Figure 25 for Figure 24 Enlarged view of point E;

[0054] Figure 26 for Figure 21 The diagram shown is a partial structural schematic of an infant vehicle omitting the seat assembly.

[0055] Figure 27 for Figure 26 NN cross-sectional view;

[0056] Figure 28 for Figure 27 Enlarged view of point F.

[0057] Explanation of reference numerals in the attached figures

[0058] 110. Seat assembly; 111. Armrest support rod; 112. Backrest support rod; 113. Seat support rod; 114. Armrest crossbar; 120. Frame assembly; 121. Rider support rod; 122. Front foot support; 123. Rear foot support; 124. U-shaped linkage rod; 124a. Linkage crossbar; 124b. Linkage side bar; 200. Armrest mounting base; 210. First main body; 211. Mounting channel; 212. Limiting post; 213. Mounting groove; 220. First connecting part; 230. First pushing slope; 300. Backrest fixing. 310, Second main body, 311, First through-hole, 312, Guide rail groove, 320, Second connecting part, 400, Seat fixing seat, 410, Third main body, 411, Locking boss, 412, Second through-hole, 420, Third connecting part, 500, Connecting fixing seat, 510, Fourth main body, 511, Connecting groove, 512, Engaging part, 513, Connecting release part, 514, Push hole, 520, Mounting shaft, 600, First frame fixing seat, 610, Fifth main body, 611, Connecting rib, 612, Engaging hole, 613 620, 700, 710, 720, 810, 811, 812, 813, 814, 815, 816, 820, 821, 822, 823, 824, 825, 824, 824, 825, 826, 827, 828, 829, 820, 820, 821, 822, 823, 824, 825, 826, 824 ...6, 827, 828, 824, 825, 826, 827, 828, 829, 820, 824, 825, 826, 827, 828, 829, 820, 824, 825, 826, 827, 828, 829, 820, 826, 827, 828, 829, 820, 826, 827, 828, 829, 820, 820, 5. Pushing component, 825a. Pushing rib, 826. Second elastic component, 830. Fourth locking mechanism, 831. Locking pin, 831a. Limiting hole, 831b. Through hole, 832. Fourth locking groove, 833. Fourth elastic component, 834. Operating component, 840. Third locking mechanism, 841. Engaging block, 841a. Engaging part, 841b. Guide post, 841c. Mounting platform, 841d. Abutting part, 841e. Protrusion, 842. Engaging groove, 843. Third elastic component, 850. Fifth locking mechanism, 851. Back-to-back release component. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0060] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] like Figure 1 As shown, one embodiment of the present invention provides an infant carrier, such as a stroller, in which the folding of the seat relative to the frame can be well controlled, making it convenient to use and safer.

[0063] Specifically, such as Figure 1 , Figure 3 , Figure 8 and Figure 13 As shown, the stroller includes a seat assembly 110, a frame assembly 120, an armrest fixing seat 200, a backrest fixing seat 300, a seat fixing seat 400, a connecting fixing seat 500, a first frame fixing seat 600, a second frame fixing seat 700, a first locking mechanism 810, a second locking mechanism 820, a third locking mechanism 840, a fourth locking mechanism 830, and a fifth locking mechanism 850.

[0064] Specifically, such as Figures 1 to 6 As shown, the seat assembly 110 includes an armrest support rod 111, a backrest support rod 112, a seat support rod 113, and an armrest crossbar 114. The armrest crossbar 114 is horizontally positioned at the front of the seat assembly 110 for the infant to grasp. Both ends of the armrest crossbar 114 are connected to the armrest support rod 111. The backrest support rod 112 and a backrest body (not shown in the attached figure) covering the backrest support rod 112 form a backrest for supporting the infant's back. The seat support rod 113 and a seat body (not shown in the attached figure) covering the seat support rod 113 form a seat for supporting the infant's buttocks. The frame assembly 120 includes a handrail support rod 121, a front foot support rod 122, a rear foot support rod 123, and a U-shaped linkage rod 124. The seat assembly 110 and the frame assembly 120 are detachably connected.

[0065] Specifically, such as Figure 1 , Figure 16 and Figure 17 As shown, the armrest fixing seat 200, backrest fixing seat 300, seat fixing seat 400 and connecting fixing seat 500 are coaxially pivotally connected in sequence.

[0066] The handrail fixing base 200 includes a first main body 210 and a first connecting part 220 connected to each other. The first main body 210 is generally disc-shaped, and the first connecting part 220 is generally sleeve-shaped and can be used to be sleeved and fixed with the handrail support rod 111.

[0067] The backrest fixing base 300 includes a second main body 310 and a second connecting part 320 connected to each other. The second main body 310 is generally annular, that is, a generally circular first through-hole 311 is formed in the middle of the second main body 310. The second connecting part 320 is generally sleeve-shaped and is used to be sleeved and fixed with the backrest support rod 112.

[0068] The seat fixing base 400 includes a third main body portion 410 and a third connecting portion 420 connected to each other. The third main body portion 410 is generally frustoconical in shape. A locking boss 411 is formed on the side of the third main body portion 410 facing back against the fixing base 300. A generally circular second through-hole 412 is formed in the middle of the locking boss 411. The second through-hole 412 is disposed opposite to the first through-hole 311. The third connecting portion 420 is generally sleeve-shaped and is used to be sleeved and fixed with the seat support rod 113.

[0069] Please refer to this as well. Figure 19 and Figure 20 The connecting fixing seat 500 is fixed on the frame assembly 120. The connecting fixing seat 500 includes a fourth main body 510 that is generally disc-shaped and a mounting shaft 520 fixed in the middle of the fourth main body 510. The seat fixing seat 400, the backrest fixing seat 300 and the armrest fixing seat 200 are sequentially sleeved on the mounting shaft 520 to achieve coaxial pivot connection.

[0070] In this embodiment, the first connecting part 220, the second connecting part 320 and the third connecting part 420 are respectively sleeved and fixed on the armrest support rod 111, the backrest support rod 112 and the seat support rod 113, or they can be connected to the armrest support rod 111, the backrest support rod 112 and the seat support rod 113 in other ways, such as by fixing with pins, or by being integrally formed with the armrest support rod 111, the backrest support rod 112 and the seat support rod 113 respectively.

[0071] Furthermore, such as Figure 3As shown, the U-shaped linkage 124 includes a linkage crossbar 124a and two linkage side bars 124b connected to both ends of the linkage crossbar 124a. Both sides of the seat assembly 110 are provided with a hand support rod 121, a front foot support rod 122, and a rear foot support rod 123. The hand support rod 121 and the front foot support rod 122 on the same side of the seat assembly 110 are pivotally connected to each other, and the rear foot support rod 123 is also pivotally connected to the hand support rod 121. The rear foot support rod 123 and the front foot support rod 122 are connected through one of the linkage side bars 124b to achieve the linkage folding of the rear foot support rod 123 and the front foot support rod 122.

[0072] Furthermore, such as Figures 1 to 3 As shown, the first frame mounting base 600 and the second frame mounting base 700 are pivotally connected to each other, and the first frame mounting base 600 and the connecting mounting base 500 are detachably connected. The first frame mounting base 600 includes a fifth main body portion 610 and a fifth connecting portion 620 connected to each other. The fifth main body portion 610 is generally disc-shaped, and the fifth connecting portion 620 is generally sleeve-shaped. The second frame mounting base 700 includes a sixth main body portion 710 and a sixth connecting portion 720 connected to each other. The sixth main body portion 710 is generally disc-shaped, and the sixth connecting portion 720 is generally sleeve-shaped. Please refer to both. Figure 4 The fifth main body 610 has a connecting rib 611 on one side. The side of the connecting fixing seat 500 facing away from the seat fixing seat 400, specifically the side of the fourth main body 510 facing away from the third main body 410, has a connecting groove 511 that mates with the connecting rib 611. One side of the fifth main body 610 has a locking hole 612. The side of the connecting fixing seat 500 facing away from the seat fixing seat 400, specifically the side of the fourth main body 510 facing away from the third main body 410, has a locking member 512 that mates with the locking hole 612. The connecting fixing seat 500 also has a connecting release member 513 (e.g., a pressing member), which can be driven to cause the locking member 512 to retract away from the first frame fixing seat 600 and disengage from the locking hole 612. Thus, a detachable connection between the first frame fixing seat 600 and the connecting fixing seat 500 can be achieved. Of course, the positions of the connecting rib 611 and the connecting groove 511 can be interchanged, and the positions of the engaging hole 612 and the engaging piece 512 can also be interchanged. In this embodiment, the first frame fixing seat 600 and the second frame fixing seat 700 can be respectively sleeved and fixed to the front foot support member 122 and the rider support rod 121 through the fifth connecting part 620 and the sixth connecting part 720, or connected to the rider support rod 121 and the front foot support member 122 through other means, or they can be integrally formed with the rider support rod 121 and the front foot support member 122. Of course, in other embodiments, it can also be the other way around, with the first frame fixing seat 600 and the second frame fixing seat 700 respectively sleeved and fixed to the rider support rod 121 and the front foot support member 122.

[0073] like Figures 12 to 15 As shown, the first locking mechanism 810 has a locked state and an unlocked state. Rotating the armrest fixing seat 200 allows the first locking mechanism 810 to switch from the locked state to the unlocked state. Specifically, when the first locking mechanism 810 is in the locked state, the seat fixing seat 400 and the connecting fixing seat 500 are relatively fixed; when the first locking mechanism 810 is in the unlocked state, the seat fixing seat 400 and the connecting fixing seat 500 can rotate relative to each other. Thus, when the infant carrier needs to be folded, rotating the armrest fixing seat 200 will release the first locking mechanism 810 from the locked state to the unlocked state, thereby disengaging the seat assembly 110 and the frame assembly 120. The seat assembly 110 can then be rotated and folded, resulting in a smaller overall size of the folded infant carrier. This method of rotating the armrest fixing seat 200 (i.e., rotating the armrest support rod 111) to fold the seat assembly provides better process control, ease of use, and a higher safety factor.

[0074] Specifically, such as Figures 12 to 15 The first locking mechanism 810 includes a first locking member 811 and a first locking groove 812 that can cooperate and lock together. The first locking member 811 is disposed on the connecting fixing seat 500, specifically, the first locking member 811 can be sleeved on the mounting shaft 520, and the first locking member 811 can only reciprocate along the direction of approaching or moving away from the seat fixing seat 400, that is, the first locking member 811 cannot rotate around the mounting shaft 520, but can only reciprocate along the axial direction of the mounting shaft 520. The first locking groove 812 is disposed on the side of the seat fixing seat 400 facing the connecting fixing seat 500. In this embodiment, the first locking member 811 is a gear, and the first locking groove 812 is a gear groove that can cooperate with the gear. Of course, in other embodiments, the first locking member 811 and the first locking groove 812 can also be other shapes. Rotation of the armrest fixing seat 200 can disengage the first locking member 811 from the first locking groove 812. Thus, the lock between the connecting base 500 and the seat base 400 can be released by rotating the armrest fixing base 200, and the structure is simple and easy to implement.

[0075] Furthermore, such as Figure 13 As shown, the first locking mechanism 810 also includes a driving component 813. The driving component 813 is sleeved on the mounting shaft 520; please refer to the diagram for further details. Figure 10 and Figure 17 Specifically, it can be located within the accommodating space formed by the first through-hole 311 and the second through-hole 412. Rotation of the armrest fixing seat 200 causes the driving member 813 to push against the first locking member 811 and move away from the seat fixing seat 400 to disengage from the first locking groove 812. Please refer to the following: Figure 18Specifically, a first pushing slope 230 can be provided in the armrest fixing seat 200. The driving member is roughly cylindrical in shape. One end of the driving member 813 is provided with a second pushing slope 813a that can cooperate with the first pushing slope 230. The other end of the driving member 813 abuts against the first locking member 811. More specifically, the other end of the driving member 813 is provided with a driving protrusion 813b, which abuts against the first locking member 811. Thus, when the armrest fixing seat 200 is rotated, the first pushing slope 230 rotates and pushes the second pushing slope 813a to move axially, that is, pushes the driving member 813 to move axially. The driving member 813 then pushes the first locking member 811, and the first locking member 811 disengages from the first locking groove 812, thereby unlocking the seat fixing seat 400 and the connecting fixing seat 500.

[0076] Furthermore, such as Figures 24 to 28 As shown, the first locking mechanism 810 also includes a first elastic member 814. The two ends of the first elastic member 814 abut against the first locking member 811 and the fourth main body 510, respectively. The first elastic member 814 causes the first locking member 811 to have a constant tendency to move towards the first locking groove 812 (i.e., the seat fixing seat 400). In this embodiment, the first elastic member 814 is a spring or elastic rubber post sleeved on the mounting shaft 520, and there are no restrictions on its type. Thus, after the infant carrier's state transition is completed, for example, when the infant carrier changes from a folded state to an unfolded state for use, the first elastic member 814 can automatically spring the first locking member 811 back into the first locking groove 812, automatically relocking the seat fixing seat 400 and the connecting fixing seat 500, making operation convenient.

[0077] Specifically, such as Figures 1 to 3 As shown, the second locking mechanism 820 has a locked state and an unlocked state. The rotation of the armrest fixing seat 200 can change the second locking mechanism 820 from the locked state to the unlocked state. Specifically, when the second locking mechanism 820 is in the locked state, the first frame fixing seat 600 and the second frame fixing seat 700 are fixed relative to each other; when the second locking mechanism 820 is in the unlocked state, the first frame fixing seat 600 and the frame fixing seat rotate relative to each other.

[0078] Specifically, such as Figures 1 to 3As shown, the second locking mechanism 820 includes a second locking member 821, a second locking groove (not shown in the figure), and a third locking groove 823. The first frame mounting base 600 has a second locking groove, and the second frame mounting base 700 has a third locking groove 823. The second locking member 821 can simultaneously lock into both the second locking groove and the third locking groove 823. Rotation of the armrest mounting base 200 can drive the second locking member 821 to disengage from either the second locking groove or the third locking groove 823, thereby changing the second locking mechanism 820 from a locked state to an unlocked state. In this embodiment, the second locking member 821 is a gear, and both the second locking groove and the third locking groove 823 are gear grooves that engage with the second locking member 821. Of course, in other embodiments, the second locking member 821 can also be of other shapes, such as an irregular polygon, and the second locking groove and the third locking groove 823 can correspondingly be of other shapes.

[0079] Furthermore, such as Figure 3 and Figure 4 As shown, the second locking mechanism 820 also includes a frame release member 824 and a push member 825. The frame release member 824 is mounted on the first frame mounting base 600. Specifically, the frame release member 824 may include a release body 824a and a release protrusion 824b connected to each other. The release body 824a is located on the side of the first frame mounting base 600 facing away from the second frame mounting base 700. The first frame mounting base 600 is provided with a release hole 613. The release protrusion 824b passes through the release hole 613 and abuts against the second locking member 821. The push member 825 is fixed to the first locking member 811. For example, the push member 825 may be integrally formed with the first locking member 811. Specifically, the push member 825 may include two push ribs 825a spaced apart on the side of the first locking member 811 facing away from the seat mounting base 400. The side of the connecting fixing seat 500 facing away from the seat fixing seat 400 is opposite to the side of the first frame fixing seat 600 where the frame release member 824 is located. The connecting fixing seat 500 is provided with a push hole 514 for the push member 825 to pass through. Figure 6 (As shown). The rotation of the armrest fixing seat 200 drives the first locking member 811 to move axially, so that the pushing member 825 can pass through the pushing hole 514 and push the frame release member 824. At the same time, the release protrusion 824b of the frame release member 824 pushes the second locking member 821 to disengage from the second locking groove. Thus, the second locking mechanism 820 changes from the locked state to the unlocked state. Meanwhile, the pushing member 825, which is integrally formed with the first locking member 811, passes through the pushing hole 514 and can also limit the movement of the first locking member 811 only in the direction of approaching or moving away from the seat fixing seat 400, that is, only in the axial direction, preventing the first locking member 811 from rotating around the mounting axis 520, thereby realizing the locking function of the first locking mechanism 810.

[0080] Furthermore, such as Figure 3 , Figure 4 and Figure 8 As shown, the second locking mechanism 820 also includes a second elastic member 826. The two ends of the second elastic member 826 abut against the second locking member 821 and the second frame mounting base 700 (specifically, the sixth main body 710), respectively. The second elastic member 826 causes the second locking member 821 to move constantly towards the second locking groove (i.e., the first frame mounting base). In this embodiment, the second elastic member 826 is a spring or elastic rubber post sleeved on the mounting shaft 520, and there are no restrictions on its type. Thus, after the infant carrier's state transition is completed, for example, when the infant carrier changes from a folded state to an unfolded state for use, the second elastic member 826 can automatically spring the second locking member 821 back into the second locking groove, automatically relocking the first frame mounting base 600 and the second frame mounting base 700, making operation convenient.

[0081] Furthermore, such as Figures 7 to 10 As shown, the third locking mechanism 840 has a locked state and an unlocked state. When the backrest fixed seat 300 rotates relative to the armrest fixed seat 200 to the first position, the armrest fixed seat 200 and the seat fixed seat 400 are locked by the third locking mechanism 840. When the backrest fixed seat 300 rotates relative to the armrest fixed seat 200 to the second position, the third locking mechanism 840 releases the lock on the armrest fixed seat 200 and the seat fixed seat 400.

[0082] In this embodiment, as Figure 22 As shown, the second position can be a position where the backrest fixing base 300 is rotated relative to the armrest fixing base 200 until the armrest support rod 111 and the backrest support rod 112 are approximately parallel or coincident; additionally, as Figure 21 As shown, the first position refers to all positions other than the second position. Thus, when the infant carrier needs to be folded, the backrest fixing seat 300 can be rotated from the first position to the second position relative to the armrest fixing seat 200, that is, the armrest support rod 111 and the backrest support rod 112 are approximately parallel or overlapped. At this time, the third locking mechanism 840 releases the lock on the armrest fixing seat 200 and the seat fixing seat 400, and further operation can be performed to fold the armrest support rod 111, the backrest support rod 112 and the seat support rod 113 into a state where the three are approximately parallel, so as to save storage space after the seat assembly 110 is folded.

[0083] Specifically, such as Figures 7 to 10 and Figure 17As shown, the third locking mechanism 840 includes a first locking part disposed on the armrest fixing seat 200 and a second locking part disposed on the seat fixing seat 400. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to a first position, the first locking part and the second locking part lock into each other. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to a second position, the first locking part and the second locking part disengage. In this embodiment, the first locking part is a locking block 841 disposed on the armrest fixing seat 200, and the second locking part is a locking groove 842 disposed on the seat fixing seat 400 and capable of engaging with the locking block 841. Of course, the positions of the locking block 841 and the locking groove 842 can also be interchanged, or the third locking mechanism 840 can also take other forms, such as hooks and holes that cooperate with each other, which is not limited.

[0084] Optional, such as Figure 10 and Figure 17 As shown, the engaging groove 842 is provided on the locking boss 411. The engaging block 841 is provided on the side of the armrest fixing seat 200 facing the back of the fixing seat 300. Please refer to this as well. Figure 18 The first main body 210 of the armrest fixing seat 200 is provided with a radially arranged mounting groove 213. A locking block 841 is disposed in the mounting groove 213 and extends out of the groove of the mounting groove 213 to engage with the locking groove 842. A locking boss 411 passes through the first through-hole 311 so that the locking block 841 can be locked into the locking groove 842. Optionally, the mounting groove 213 and the mounting channel 211 are arranged along the same radial direction of the armrest fixing seat 200, that is, the locking block 841 and the locking pin 831 are arranged along the same radial direction of the armrest fixing seat 200. In this way, the locking block 841 and the locking pin 831 can lock the seat fixing seat 400 from both opposite sides of the armrest fixing seat 200.

[0085] Furthermore, such as Figures 7 to 10 and Figure 17As shown, the second main body 310 backing the fixed base 300 has a guide groove 312. The distance between the guide groove 312 and the opening of the engaging groove 842 varies at different positions, that is, the extension path of the guide groove 312 is gradually changing. The engaging block 841 has an engaging part 841a and a guide post 841b. The engaging part 841a can be inserted into the engaging groove 842, and the guide post 841b is inserted into the guide groove 312 and moves along the guide groove 312. When the fixed base 300 is rotated to the second position relative to the armrest fixed base 200, the guide groove 312 is farthest from the center of the second main body 310, that is, the guide groove 312 is farthest from the locking boss 411. The engaging block 841 moves along the guide groove 312 until the engaging part 841a disengages from the engaging groove 842. When the backrest fixing seat 300 rotates to the first position relative to the armrest fixing seat 200, the engaging block 841 moves along the guide rail groove 312 until the engaging part 841a can be inserted into the engaging groove 842. In this way, on the one hand, when the backrest fixing seat 300 rotates to the first position relative to the armrest fixing seat 200, the third locking mechanism 840 is in a locked state; when the backrest fixing seat 300 rotates to the second position relative to the armrest fixing seat 200, the third locking mechanism 840 is in an unlocked state. On the other hand, during the unfolding process of the infant carrier, due to the cooperation between the guide post 841b on the engaging block 841 and the guide rail groove 312, the armrest fixing seat 200 and the backrest fixing seat 300 are linked during pivoting. Thus, the armrest support rod 111 unfolds along with the backrest support rod 112 and even the entire infant carrier, and automatically returns to its initial position, thereby achieving automatic return of the armrest support rod 111 during the unfolding process. Thus, during the folding process of the infant carrier, the backrest fixing seat 300 can drive the armrest fixing seat 200 to continue rotating in the original direction relative to the seat fixing seat 400 until the folding process is completed.

[0086] Furthermore, such as Figure 8 , Figure 10 and Figure 28 As shown, the third locking mechanism 840 also includes a third elastic element 843. The two ends of the third elastic element 843 abut against the armrest fixing seat 200 and the engaging block 841, respectively. Specifically, the two ends of the third elastic element 843 abut against the engaging block 841 and the bottom of the mounting groove 213, respectively. The third elastic element 843 causes the engaging block 841 to move constantly towards the engaging groove 842. Thus, after the infant carrier's state transition is completed, such as from a folded state to an unfolded state, the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the first position. The engaging block 841 can then automatically engage into the engaging groove 842 under the action of the third elastic element 843, thereby locking the armrest fixing seat 200 and the seat fixing seat 400 and improving safety performance.

[0087] Specifically, such as Figure 28As shown, the third elastic member 843 can be installed by setting a mounting platform 841c on the engaging block 841. The mounting platform 841c includes an abutment portion 841d and a protrusion portion 841e connected to each other. The third elastic member 843 is partially sleeved outside the protrusion portion 841e, and the end of the third elastic member 843 away from the bottom of the mounting groove 213 abuts against the abutment portion 841d. Of course, other methods can also be used to install the third elastic member 843. The third elastic member 843 can be a spring, an elastic rubber column, etc., and there is no limitation on this.

[0088] Furthermore, such as Figures 7 to 10 As shown, the fourth locking mechanism 830 can lock the armrest fixing seat 200 and the seat fixing seat 400 relative to each other. When the backrest fixing seat 300 rotates relative to the armrest fixing seat 200 to the second position, the fourth locking mechanism 830 can be operated, causing the armrest fixing seat 200 and the seat fixing seat 400 to rotate relative to each other. Thus, when the fourth locking mechanism 830 is operated, the armrest fixing seat 200 and the seat fixing seat 400 are unlocked, and the armrest fixing seat 200 and the seat fixing seat 400 rotate relative to each other, ultimately causing the armrest support rod 111, the seat support rod 113 and the backrest support rod 112 to be in a nearly parallel state. The armrest support rod 111 does not tilt or extend outward, resulting in a smaller overall volume after folding, reducing transportation costs and facilitating storage and placement. The clever cooperation between the fourth locking mechanism 830 and the third locking mechanism 840 provides a double-locking safety feature for the infant carrier. Simply operating the fourth locking mechanism 830 or rotating the backrest support 300 relative to the armrest support 200 to the second position, thus releasing the third locking mechanism 840, will not unlock the infant carrier. Only when both the fourth and third locking mechanisms 830 and 840 are released simultaneously can the armrest support rod 111, backrest support rod 112, and seat support rod 113 of the infant carrier rotate relative to each other. This prevents the infant carrier from being accidentally folded when the fourth locking mechanism 830 is accidentally activated or when the backrest support rod 112 is rotated to be approximately parallel or overlapped with the armrest support rod 111, greatly improving the safety performance of the infant carrier.

[0089] Specifically, such as Figures 7 to 10 As shown, the fourth locking mechanism 830 includes a third locking part disposed on the armrest fixing seat 200 and a fourth locking part disposed on the seat fixing seat 400. The third locking part can be operated to cooperate with the fourth locking part to lock or unlock, or the fourth locking part can be operated to cooperate with the third locking part to lock or unlock.

[0090] Optionally, such as Figures 7 to 10 and Figure 17As shown, the third locking part is a locking pin 831 movably mounted on the armrest fixing seat 200, and the fourth locking part is a fourth locking groove 832 mounted on the seat fixing seat 400 and capable of engaging with the locking pin 831. Thus, the armrest fixing seat 200 and the seat fixing seat 400 can be locked by the engagement of the locking pin 831 and the fourth locking groove 832. By operating the locking pin 831, causing it to disengage from the fourth locking groove 832, the fourth locking mechanism 830 can be released, allowing the armrest fixing seat 200 and the seat fixing seat 400 to rotate relative to each other, i.e., the armrest support rod 111 and the seat support rod 113 can rotate relative to each other. Of course, the positions of the locking pin 831 and the fourth locking groove 832 can be interchanged, or the third and fourth locking parts can be in other forms, such as hooks and holes that can engage with each other; there are no limitations on this.

[0091] Furthermore, such as Figure 17 As shown, the fourth locking groove 832 is provided on the locking boss 411. The locking pin 831 is provided on the side of the handrail fixing seat 200 facing the back of the fixing seat 300. Please refer to this as well. Figure 18 Specifically, a radially penetrating mounting channel 211 can be provided on the first main body 210 of the handrail fixing base 200. One end of the locking pin 831 can pass through the mounting channel 211 and engage with the fourth locking groove 832, while the other end of the locking pin 831 can protrude out of the mounting channel 211 for easy operation. The locking boss 411 passes through the first through-hole 311 so that the locking pin 831 can be locked into the fourth locking groove 832.

[0092] Furthermore, such as Figure 10 and Figure 13 As shown, the fourth locking mechanism 830 also includes a fourth elastic element 833. The two ends of the fourth elastic element 833 abut against the armrest fixing seat 200 and the locking pin 831, respectively. The fourth elastic element 833 causes the locking pin 831 to move constantly towards the fourth locking groove 832. Thus, after completing the state transition of the infant carrier, such as from a folded state to an unfolded state, the locking pin 831 can automatically engage with the fourth locking groove 832 under the action of the fourth elastic element 833 to relock the armrest fixing seat 200 and the seat fixing seat 400. No further manual operation of the locking pin 831 is required, saving time and effort, and improving safety performance.

[0093] Optionally, such as Figure 10 and Figure 13As shown, the fourth elastic element 833 can be configured such that a limiting post (not shown in the attached diagram) is provided on the inner wall of the mounting channel 211, and a limiting hole 831a is provided on the locking pin 831 arranged radially. The limiting post is inserted into the limiting hole 831a, and the two ends of the fourth elastic element 833 abut against the limiting post and the side of the limiting hole 831a away from the locking boss 411, respectively. In this way, the fourth elastic element 833 can assist the locking pin 831 in resetting. Of course, the fourth elastic element 833 can also be configured in other ways. The fourth elastic element 833 can be a spring, an elastic rubber post, etc., and there are no restrictions on this.

[0094] Furthermore, such as Figure 11 As shown, the fourth locking mechanism 830 also includes an operating element 834 connected to the locking pin 831. The operating element 834 can be operated to move the locking pin 831. This facilitates user operation of the locking pin 831 and improves the user experience. Optionally, the operating element 834 can be a webbing. Using webbing as the operating element 834 takes up almost no storage space and adds almost no weight to the baby carrier. Of course, the operating element 834 can also be a pull ring, etc., without limitation. The end of the locking pin 831 protruding from the mounting channel 211 can be provided with a through hole 831b. The webbing can pass through the through hole 831b and be wrapped and fixed to the locking pin 831. Of course, the webbing can also be fixed to the locking pin in other ways, without limitation.

[0095] Furthermore, such as Figure 7 and Figure 9 As shown, the fifth locking mechanism 850 has a locked state and an unlocked state. In this embodiment, the fifth locking mechanism 850 includes a back-off release member 851 located at the top of the back support rod 112. By pressing the back-off release member 851, the fifth locking mechanism 850 can be switched from the locked state to the unlocked state, thereby realizing the angle adjustment of the back support rod 112 relative to the handrail support rod 111. Specifically, when the fifth locking mechanism 850 is in the locked state, the back-off fixing seat 300 and the handrail fixing seat 200 are locked relative to each other; when the fifth locking mechanism 850 is in the unlocked state, the back-off fixing seat 300 and the handrail fixing seat 200 rotate relative to each other.

[0096] The following is a detailed process for converting an infant carrier from its unfolded state to its folded state:

[0097] like Figures 21 to 23 As shown, first press the backrest release member 851 to release the fifth locking mechanism 850, allowing the backrest fixing seat 300 to rotate relative to the armrest fixing seat 200 to the second position (as shown). Figure 22As shown, the backrest support rod 112 coincides with or is parallel to the armrest support rod 111, and the backrest support rod 112 is blocked by the armrest support rod 111 and cannot continue to rotate forward. At the same time, the third locking mechanism 840 releases, and the locking block 841 disengages from the locking groove 842. At this time, the webbing is pulled, causing the locking pin 831 to disengage from the fourth locking groove 832, and the fourth locking mechanism 830 releases. Then, the armrest fixing seat 200 and the seat fixing seat 400 can rotate relative to each other until they respectively drive the armrest support rod 111 and the seat support rod 113 to rotate towards the backrest support rod 112, and finally make the armrest support rod 111, the seat support rod 113 and the backrest support rod 112 in a nearly parallel state, with the armrest support rod 111 not tilted or extended outward. Simultaneously, when the armrest fixing seat 200 rotates, it can push the first locking member 811 through the driving member 813, causing the first locking member 811 to disengage from the first locking groove 812, that is, the first locking mechanism 810 is released. The seat fixing seat 400 and the connecting fixing seat 500 can rotate relative to each other, so that the seat support rod 113 can rotate and fold relative to the frame assembly 120. Moreover, when the first locking member 811 is pushed, the pushing member 825 on the first locking member 811 will push the frame release member 824 of the second locking mechanism 820, thereby releasing the lock between the hand support rod 121 and the front foot support rod 122, causing the hand support rod 121 and the front foot support rod 122 to rotate and fold together. In this way, the entire infant carrier can be folded (e.g., Figure 23 (As shown).

[0098] The aforementioned infant carriers have at least the following technical effects:

[0099] In this infant carrier, the armrest fixing seat 200, the seat fixing seat 400, and the connecting fixing seat 500 are coaxially pivotally connected, and the armrest fixing seat 200 and the seat fixing seat 400 are fixed to the frame assembly 120 through the connecting fixing seat 500. That is, when the armrest support rod 111 and the seat support rod 113 are connected to the armrest fixing seat 200 and the seat fixing seat 400 respectively, the armrest support rod 111 and the seat support rod 113 are fixed to the frame assembly 120. The first locking mechanism 810 can be used to control the relative fixation and relative rotation between the seat fixing seat 400 and the connecting fixing seat 500, that is, to control the relative fixation and relative rotation between the seat support rod 113 and the frame assembly 120. When the infant carrier needs to be folded, rotating the armrest fixing seat 200 will release the first locking mechanism 810 from the locked state, thus disengaging the seat support rod 113 from the frame assembly 120. The seat support rod 113 can then be rotated and folded, thereby folding the entire infant carrier and reducing its overall size. This method of folding the seat assembly 110 by rotating the armrest fixing seat 200 (i.e., rotating the armrest support rod 111) provides better process control and ease of use compared to the traditional method of folding the seat support rod 113 by directly folding the backrest support rod 112, resulting in a higher safety factor.

[0100] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An infant carrier, characterized in that, include: Chassis components; A connecting mounting bracket is attached to the vehicle frame assembly; Seat mounting base; Armrest fixing base; It is backed by a fixed base and is coaxially pivotally connected to the fixed base, the seat fixed base, and the armrest fixed base; The third locking mechanism has a first locking state capable of locking the armrest fixing seat and the seat fixing seat or a first unlocking state capable of releasing the locking of the armrest fixing seat and the seat fixing seat; The third locking mechanism can switch from the first locked state to the first unlocked state as the back fixed base rotates.

2. The infant carrier according to claim 1, characterized in that, When the backrest fixing seat rotates relative to the armrest fixing seat to the first position, the third locking mechanism locks the armrest fixing seat and the seat fixing seat in the first locking state. The backrest fixing seat rotates to the second position relative to the armrest fixing seat, which allows the third locking mechanism to release the locking of the armrest fixing seat and the seat fixing seat and enter the first unlocked state.

3. The infant carrier according to claim 2, characterized in that, The third locking mechanism includes a first locking part disposed on the armrest fixing seat and a second locking part disposed on the seat fixing seat. When the backrest fixing seat rotates relative to the armrest fixing seat to a first position, the first locking part and the second locking part are locked together. When the backrest fixing seat rotates relative to the armrest fixing seat to a second position, the first locking part and the second locking part are disengaged.

4. The infant carrier according to claim 3, characterized in that, The first locking part is a locking block disposed on the armrest fixing seat, and the second locking part is a locking groove disposed on the seat fixing seat and cooperating with the locking block; and / or The backrest is provided with a guide rail groove, which can guide the first locking part to engage or disengage with the second locking part.

5. The infant carrier according to claim 1, characterized in that, It also includes a fourth locking mechanism, which has a second locking state capable of locking the armrest fixing seat and the seat fixing seat or a second unlocking state capable of releasing the locking of the armrest fixing seat and the seat fixing seat, and the fourth locking mechanism can be operated to switch from the second locking state to the second unlocking state.

6. The infant carrier according to claim 1, characterized in that, It also includes a fourth locking mechanism, which has a second locking state capable of locking the armrest fixing seat and the seat fixing seat or a second unlocking state capable of releasing the locking of the armrest fixing seat and the seat fixing seat; When one of the third locking mechanism and the fourth locking mechanism is released, the armrest fixing seat and the seat fixing seat are fixed relative to each other. Optionally, when both the third and fourth locking mechanisms are released, the armrest fixing seat, the seat fixing seat, and the backrest fixing seat can rotate relative to each other.

7. The infant carrier according to claim 5 or 6, characterized in that, When the backrest fixing seat rotates to the second position relative to the armrest fixing seat, the fourth locking mechanism is operated, so that the armrest fixing seat and the seat fixing seat rotate relative to each other.

8. The infant carrier according to claim 7, characterized in that, The fourth locking mechanism includes a third locking part disposed on the armrest fixing seat and a fourth locking part disposed on the seat fixing seat. The third locking part is operated to cooperate with the fourth locking part to lock or unlock, or the fourth locking part is operated to cooperate with the third locking part to lock or unlock.

9. The infant carrier according to claim 7, characterized in that, The third locking part is a locking pin movably disposed on the armrest fixing seat, and the fourth locking part is a fourth locking groove disposed on the seat fixing seat and cooperating with the locking pin.

10. The infant carrier according to claim 1, characterized in that, It also includes a first locking mechanism, which has a locked state and an unlocked state. Rotation of the armrest fixing seat causes the first locking mechanism to switch from the locked state to the unlocked state. When the first locking mechanism is in the locked state, the seat fixing seat and the connecting fixing seat are relatively fixed; when the first locking mechanism is in the unlocked state, the seat fixing seat and the connecting fixing seat rotate relative to each other.

11. The infant carrier according to claim 10, characterized in that, The first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on one of the connecting fixing seat and the seat fixing seat, and the first locking groove is disposed on the other of the connecting fixing seat and the seat fixing seat. The armrest fixing seat rotates to disengage the first locking member from the first locking groove.

12. The infant carrier according to claim 10, characterized in that, The first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on the connecting fixing seat and reciprocates along the direction of approaching or moving away from the seat fixing seat. The first locking groove is disposed on the seat fixing seat. The armrest fixing seat rotates to move the first locking member away from the seat fixing seat so that the first locking member is disengaged from the first locking groove.

13. The infant carrier according to claim 11 or 12, characterized in that, The first locking mechanism further includes a driving member, which is driven by the rotation of the armrest fixing seat to push the first locking member away from the seat fixing seat to disengage from the first locking groove.

14. The infant carrier according to claim 13, characterized in that, The handrail fixing seat has a first pushing slope, one end of the driving member has a second pushing slope that cooperates with the first pushing slope, and the other end of the driving member abuts against the first locking member.

15. The infant carrier according to claim 11 or 12, characterized in that, The first locking mechanism further includes a first elastic element, the two ends of which abut against the first locking element and the connecting fixing seat, respectively, and the first elastic element causes the first locking element to move constantly in the direction of the first locking groove.

16. The infant carrier according to claim 1, characterized in that, It also includes a second locking mechanism and a first frame mounting base and a second frame mounting base that are pivotally connected to each other. The second locking mechanism has a locked state and an unlocked state. The armrest mounting base rotates to change the second locking mechanism from the locked state to the unlocked state. In the locked state, the first frame mounting base and the second frame mounting base are fixed relative to each other. In the unlocked state, the first frame mounting base and the second frame mounting base rotate relative to each other.

17. The infant carrier according to claim 16, characterized in that, The second locking mechanism includes a second locking member, a second locking groove, and a third locking groove. The first frame mounting base is provided with the second locking groove, and the second frame mounting base is provided with the third locking groove. The second locking member is locked and engaged with both the second locking groove and the third locking groove. The armrest mounting base rotates to drive the second locking member to disengage from one of the second locking groove and the third locking groove, so that the second locking mechanism changes from a locked state to an unlocked state.

18. The infant carrier according to claim 17, characterized in that, The second locking mechanism further includes a frame release member mounted on the first frame mounting base. The frame release member includes a release body and a release protrusion connected to each other. The release body is located on the side of the first frame mounting base facing away from the second frame mounting base. The first frame mounting base is provided with a release hole. The release protrusion passes through the release hole and abuts against the second locking member. The armrest mounting base rotates to cause the release protrusion to push the second locking member away from the second locking groove.

19. The infant carrier according to claim 18, characterized in that, The first locking mechanism includes a first locking member and a first locking groove that cooperate to lock each other. The first locking member is disposed on the connecting fixing seat and reciprocates in the direction of approaching or moving away from the seat fixing seat. The first locking groove is disposed on the seat fixing seat. The second locking mechanism also includes a pushing member, which is fixed to the first locking member. The connecting fixing seat is provided with a pushing hole. The armrest fixing seat rotates to drive the first locking member to move away from the seat fixing seat, so that the pushing member passes through the pushing hole and pushes against the frame release member.

20. The infant carrier according to claim 16, characterized in that, The second locking mechanism includes a frame release member and a push member. The frame release member is mounted on the first frame mounting base. The armrest mounting base rotates to drive the push member to push against the frame release member, thereby releasing the second locking mechanism.

21. The infant carrier according to claim 18, characterized in that, The second locking mechanism further includes a second elastic member, the two ends of which abut against the second locking member and the second frame fixing seat, respectively, and the second elastic member causes the second locking member to move constantly toward the second locking groove.

22. The infant carrier according to claim 16, characterized in that, The connecting mounting base and the first frame mounting base are detachably connected.

23. The infant carrier according to claim 22, characterized in that, The connecting fixing seat is provided with a locking component, and the first frame fixing seat is provided with a locking hole that cooperates with the locking component.

24. The infant carrier according to claim 23, characterized in that, The connecting mounting base also includes a connecting release member, which is driven to cause the engaging member to retract away from the first frame mounting base and disengage from the engaging hole.

25. The infant carrier according to claim 1, characterized in that, Also includes: The handrail support rod is detachably connected to the handrail mounting base or fixedly connected by pins: and / or A seat support rod is detachably connected to the seat fixing seat or fixedly connected by a pin; and / or a backrest support rod is connected to the backrest fixing seat.

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