Carrier

Abstract

The utility model belongs to the technical field of children products, and discloses a carrier. The carrier comprises a frame, a seat pocket mounting seat, a seat pocket locking mechanism, a pocket locking assembly and a seat pocket unlocking mechanism. The seat pocket mounting seat is rotationally mounted on the frame, and the seat pocket locking mechanism is arranged on the frame and used for locking relative rotation of the seat pocket mounting seat and the frame; the seat pocket assembly is detachably mounted and fixed on the seat pocket mounting seat; the seat pocket unlocking mechanism is movably arranged on the seat pocket assembly or the frame and used for driving the seat pocket locking mechanism to be unlocked so that the seat pocket installation base and the frame can rotate relatively. According to the carrier disclosed by the utility model, the occupied space of the folded carrier can be reduced, and the folding storage performance of the carrier is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's articles technical field especially, relate to a carrier. BACKGROUND

[0002] The child stroller usually includes the car support that can be folded and opened and the seat pocket installed on the car support, in order to make the volume of the whole vehicle smaller after folding, the seat pocket of the existing child stroller usually adopts foldable design to realize the overall folding and unfolding of the child stroller.

[0003] The prior art provides a child stroller, which includes a car support and a seat pocket assembly. The seat pocket assembly includes a coaxial and rotatingly connected upper surrounding frame, a lower surrounding frame, and a seat pocket connecting piece. The seat pocket connecting piece is fixedly connected with the car support, and the upper surrounding frame and the lower surrounding frame rotate relative to each other to complete the opening and folding of the seat pocket assembly. When the whole vehicle is folded, the upper surrounding frame and the lower surrounding frame are folded relative to each other, and after being folded in place, the whole vehicle is rotated relative to the seat pocket connecting piece.

[0004] The seat pocket assembly and the child stroller provided by the prior art have the problem that the seat pocket adapter is fixedly installed on the car support, and since the seat pocket adapter is usually vertically arranged, after the car support and the seat pocket assembly are folded, the seat pocket adapter will protrude upward from the rotating and folding position of the car support, resulting in a large height dimension of the whole vehicle after folding, which affects the folding and storage performance of the child stroller. SUMMARY

[0005] The utility model aims at providing a seat pocket, a frame, and a carrier, which can reduce the floor space occupied by the carrier after folding, improve the folding and storage performance of the carrier, and improve the use stability and safety of the carrier.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A carrier includes

[0008] a frame;

[0009] a seat pocket mounting seat rotatably installed on the frame;

[0010] a seat pocket locking mechanism arranged on the frame and used for locking the relative rotation of the seat pocket mounting seat and the frame;

[0011] a seat pocket assembly detachably and fixedly installed on the seat pocket mounting seat;

[0012] a seat pocket unlocking mechanism movably arranged on the seat pocket assembly or the frame and used for unlocking the seat pocket locking mechanism to enable the relative rotation of the seat pocket mounting seat and the frame.

[0013] As an optional technical solution of the carrier, the seat pocket assembly comprises a seat frame and a backrest frame, the backrest frame is rotatably mounted on the seat frame; when the backrest frame is folded towards the seat frame, the backrest frame drives the seat pocket locking mechanism to be unlocked.

[0014] As an optional technical solution of the carrier, the seat pocket unlocking mechanism has an actuating member arranged in cooperation with the backrest frame, the actuating member has a first position and a second position relative to the seat pocket assembly; when the actuating member moves from the first position to the second position, the actuating member moves to cooperate with the seat pocket locking mechanism to drive the seat pocket locking mechanism to be unlocked.

[0015] As an optional technical solution of the carrier, the actuating member is movably arranged on the seat frame, the seat pocket unlocking mechanism further has a control assembly arranged in cooperation with the actuating member, the control assembly is arranged in cooperation with the backrest frame and drives the actuating member to move from the first position to the second position when the backrest frame is folded towards the seat frame.

[0016] As an optional technical solution of the carrier, the control assembly comprises an actuating protrusion arranged on the backrest frame, the actuating protrusion rotates synchronously with the backrest frame and pushes the actuating member to move towards the seat pocket locking mechanism during rotation to unlock the locking mechanism;

[0017] The profile of the actuating protrusion extends in a curve as a whole and is arranged around a first axis, the first axis is the rotation axis of the backrest frame, one side of the actuating protrusion towards the actuating member has an actuating helical surface, the actuating helical surface has an actuating starting end and an actuating ending end arranged oppositely, from the actuating starting end to the actuating ending end, the actuating helical surface gradually moves away from the backrest frame;

[0018] After the backrest frame is folded towards the seat frame, the part near the actuating ending end on the actuating helical surface cooperates with the actuating member, after the backrest frame and the seat frame are unfolded and separated, the part near the actuating starting end on the actuating helical surface cooperates with the actuating member.

[0019] As an optional technical solution of the carrier, the control assembly further has a transmission unit arranged between the actuating protrusion and the actuating member; the transmission unit cooperates with the actuating protrusion and the actuating member respectively;

[0020] The transmission unit comprises a first unlocking member, which is slidably mounted on the seat frame along the first axis, and has an unlocking matching part in abutment with the actuating spiral surface, which slides along the actuating spiral surface from the actuating start end to the actuating end when the actuating protrusion rotates with the backrest frame towards the seat frame, so that the first unlocking member moves towards the actuating member under the action of the actuating spiral surface and drives the actuating member;

[0021] The unlocking matching part is a groove provided on the side of the first unlocking member facing the actuating protrusion, and the actuating protrusion rotates in the groove and pushes the first unlocking member to move during rotation;

[0022] The actuating protrusion is provided in multiple, and the multiple actuating protrusions are arranged in a ring shape and are provided around the first axis;

[0023] The transmission unit further comprises a second unlocking member, which cooperates with the first unlocking member and the actuating member respectively.

[0024] As an optional technical solution of the carrier, the rotation axis of the backrest frame relative to the seat frame is a first axis, the rotation axis of the seat pocket mounting seat relative to the frame is a second axis, and the first axis is parallel and spaced apart from the rear side of the second axis;

[0025] The second unlocking member is movably mounted on the seat frame and has a first pushing part and a second pushing part at two ends respectively, the first pushing part is in abutment with the first unlocking member, and the second pushing part is in abutment with the actuating member, when the actuating protrusion rotates with the backrest frame towards the seat frame, the movement of the first unlocking member pushes the first pushing part, so that the second pushing part pushes the actuating member to move towards the seat pocket locking mechanism to drive the seat pocket locking mechanism to unlock;

[0026] The second unlocking member is slidably provided on the seat frame, and when the actuating protrusion rotates with the backrest frame towards the seat frame, the first unlocking member pushes the second unlocking member to slide towards the actuating member;

[0027] The first unlocking member has a pressing part matched with the first pushing part, the pressing part has a first inclined surface, the first pushing part has a second inclined surface, in the direction away from the backrest frame, the first inclined surface is inclined away from the actuating member, and the first inclined surface is in abutment with the second inclined surface;

[0028] The side of the actuating member away from the seat pocket unlocking mechanism is provided with a pushing fitting part, the second pushing part has a third slope, in the direction towards the seat pocket locking mechanism, the third slope is inclined in the direction towards the first unlocking member, the pushing fitting part has a fourth slope abutting with the third slope;

[0029] The pushing fitting part is a pushing groove provided on the actuating member, the second pushing part is slidingly arranged in the pushing groove, and a part of the groove wall of the pushing groove forms the fourth slope.

[0030] As an optional technical solution of the carrier, the actuating member is arranged on the backrest frame and moves synchronously with the backrest frame, when the backrest frame is folded towards the seat, the actuating member moves to the position of unlocking the seat pocket locking mechanism with the backrest frame.

[0031] As an optional technical solution of the carrier, the seat pocket mounting seat is rotationally mounted on the inner side of the frame;

[0032] The frame comprises a first support, a second support and an armrest support which are coaxially pivoted, the rotation axis of the second support and the first support is coaxial with the rotation axis of the seat pocket mounting frame relative to the frame.

[0033] As an optional technical solution of the carrier, the seat pocket locking mechanism comprises a seat pocket locking member mounted in the seat pocket mounting seat, and the seat pocket locking member is slidingly arranged between the seat pocket unlocking position and the seat pocket locking position, when the actuating member moves from the first position to the second position, the actuating member actuates the seat pocket locking member to slide to the seat pocket unlocking position to unlock;

[0034] The seat pocket locking member has a fitting part, the fitting part is inserted into the side of the seat pocket mounting seat towards the seat pocket assembly when the seat pocket locking member is in the seat pocket unlocking position, and the fitting part is slidingly arranged in the direction away from the seat pocket assembly when the actuating member moves in the direction towards the seat pocket locking mechanism to unlock;

[0035] The fitting part is spaced apart by at least two around the rotation axis of the seat pocket mounting seat;

[0036] The side of the actuating member towards the seat pocket locking mechanism has a protruding actuating part, when the actuating member moves from the first position to the second position, the actuating part protrudes out of the seat pocket assembly to unlock the seat pocket locking mechanism;

[0037] The actuating part is a columnar structure, and the length direction of the columnar structure is parallel to the rotation axis of the seat pocket mounting seat.

[0038] The carrier provided by the utility model, since the seat pocket mounting seat is rotatably installed on the frame and is detachably connected with the seat pocket assembly, the position of the folded seat pocket assembly and the frame can be adjusted through the rotation of the seat pocket mounting seat relative to the frame after the seat pocket assembly is folded, so that the height of the matching structure of the seat pocket mounting seat and the seat pocket assembly is prevented from being too high after the seat pocket is folded, the overall height of the folded carrier is reduced, the floor space is reduced, the folding storage performance of the carrier is improved, meanwhile, since the rotating structure of the rotation of the seat pocket assembly relative to the frame is arranged on the frame and is separated from the seat pocket assembly, the structure of the seat pocket assembly can be simplified, the processing difficulty of the seat pocket assembly is reduced, and the bidirectional installation of the seat pocket assembly relative to the frame is facilitated, furthermore, through the arrangement of the seat pocket locking mechanism and the seat pocket unlocking mechanism, the seat pocket mounting seat can be kept fixed with the frame without rotating relative to the frame, and the seat pocket assembly can be unlocked when it is needed to be folded and unfolded relative to the frame, so that the use safety and reliability of the carrier are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is the structure schematic view of the carrier in the forward folding state provided by the utility model embodiment;

[0040] Figure 2 is the structure schematic view of the carrier in the forward folding state provided by the utility model embodiment;

[0041] Figure 3 is the structure schematic view of the frame and the seat pocket mounting seat in the carrier in the forward folding state provided by the utility model embodiment;

[0042] Figure 4 is the structure schematic view of the carrier in the reverse folding state provided by the utility model embodiment;

[0043] Figure 5 is the structure schematic view of the carrier in the reverse folding state provided by the utility model embodiment;

[0044] Figure 6 is the structure schematic view of the frame and the seat pocket mounting seat in the carrier in the reverse folding state provided by the utility model embodiment;

[0045] Figure 7 is the structure schematic view of the seat pocket after the seat pocket mounting seat is removed provided by the utility model embodiment;

[0046] Figure 8 is the structure schematic view of the frame and the seat pocket mounting seat provided by the utility model embodiment;

[0047] Figure 9 is Figure 8 is the local structure schematic view of the structure in a section;

[0048] Figure 10 is a partial split structure schematic view of a rotary joint and seat pocket mounting seat provided by the embodiment of the utility model;

[0049] Figure 11 is a partial structure schematic view of a carrier under one section provided by the embodiment of the utility model;

[0050] Figure 12 is a structure schematic view of a carrier under another section provided by the embodiment of the utility model;

[0051] Figure 13 is Figure 12 is an enlarged view of I in the figure;

[0052] Figure 14 is Figure 12 is an enlarged view of J in the figure;

[0053] Figure 15 is a partial structure schematic view of a seat pocket provided by the embodiment of the utility model;

[0054] Figure 16 is a structure schematic view of a backrest rotating part provided by the embodiment of the utility model;

[0055] Figure 17 is a structure schematic view of a first unlocking part under one view angle provided by the embodiment of the utility model;

[0056] Figure 18 is a structure schematic view of a first unlocking part under another view angle provided by the embodiment of the utility model;

[0057] Figure 19 is a structure schematic view of a second unlocking part provided by the embodiment of the utility model;

[0058] Figure 20 is a structure schematic view of an actuating part under one view angle provided by the embodiment of the utility model;

[0059] Figure 21 is a structure schematic view of an actuating part under another view angle provided by the embodiment of the utility model;

[0060] Figure 22 is a folding schematic view of a carrier provided by the embodiment of the utility model.

[0061] in the figure:

[0062] 1, seat pocket assembly; 11, seat frame; 111, seat bottom plate; 112, seat side; 1121, first groove; 11211, first inner ring groove; 11212, first outer ring groove; 1122, seat tooth groove; 1123, first convex ring; 1124, anti-rotation bump; 1125, guide convex rib; 1126, through hole; 113, auxiliary support plate; 114, side sealing plate; 1141, avoidance jack; 115, seat back rotation shaft; 116, convex column part; 12, backrest frame; 121, backrest surrounding frame; 122, backrest rotating part; 1221, backrest main side; 1222, mounting rod part; 1223, second groove; 12231, second outer ring groove; 12232, second inner ring groove; 1225, second ring part; 1226, rotating ring part; 1227, backrest tooth groove; 13, seat pocket adapter; 14, seat back locking piece; 141, seat back lock tooth; 15, front armrest;

[0063] 2, seat pocket unlocking mechanism; 21, first unlocking piece; 211, mounting ring part; 2111, anti-rotation groove; 212, unlocking matching part; 2121, matching spiral surface; 213, pressing part; 2131, first inclined surface; 22, actuating piece; 221, ring main body; 2211, pushing matching part; 22111, fourth inclined surface; 2212, guide sliding groove; 2213, avoidance groove; 2214, accommodation groove; 222, actuating part; 23, second unlocking piece; 231, first pushing part; 2311, second inclined surface; 232, sliding rod part; 233, connecting plate part; 2331, long circular sliding hole; 234, second pushing part; 2341, third inclined surface; 235, mounting column part; 24, first reset piece; 25, second reset piece; 26, actuating bump; 261, actuating spiral surface; 2611, actuating starting end; 2612, actuating end;

[0064] 3, frame; 31, first support; 32, second support; 33, armrest frame; 34, rotating joint; 35, first support wheel; 36, second support wheel; 37, rotating mounting seat; 371, rotating shaft part; 372, mounting shaft part; 373, limiting sliding groove; 372, fixed tooth groove;

[0065] 4, seat pocket mounting seat; 41, rotating seat part; 411, insertion hole; 42, insertion part; 43, limiting bump;

[0066] 5, seat pocket locking mechanism; 51, seat pocket locking piece; 511, seat pocket lock tooth; 512, matching part; 52, locking reset piece;

[0067] 10a, first axis; 10b, second axis; 10c, third axis. DETAILED DESCRIPTION

[0068] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0069] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0070] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0071] In the description of the embodiment, the terms "upper", "lower", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0072] The utility model embodiment provides a kind of carrier, it can be switched between unfolding and folding state, to make carrier can be used for children to ride when unfolding, can be relatively folded and folded to reduce overall floor space when folding, improve the use and carrying convenience of carrier.

[0073] As Figure 1 , Figure 8 And Figure 12As shown, the carrier comprises a frame 3, a seat pocket mounting base 4, a seat pocket locking mechanism 5, a seat pocket assembly 1 and a seat pocket unlocking mechanism 2. Among them, the seat pocket mounting base 4 is rotatably mounted on the frame 3; the seat pocket locking mechanism 5 is arranged on the frame 3 and is used for locking the relative rotation of the seat pocket mounting base 4 and the frame 3; the seat pocket assembly 1 is detachably mounted and fixed on the seat pocket mounting base 4; and the seat pocket unlocking mechanism 2 is movably arranged on the seat pocket assembly 1 or the frame 3 and is used for driving the seat pocket locking mechanism 5 to unlock, so that the seat pocket mounting base 4 and the frame 3 can relatively rotate.

[0074] The carrier provided in the embodiment is characterized in that the seat pocket mounting base 4 is rotatably mounted on the frame 3 and detachably connected with the seat pocket assembly 1, so that after the seat pocket assembly 1 is folded, the position of the folded seat pocket assembly 1 relative to the frame 3 can be adjusted by rotating the seat pocket mounting base 4 relative to the frame 3, thereby avoiding that the matching structure of the seat pocket mounting base 4 and the seat pocket assembly 1 protrudes too high above the frame 3 after the seat pocket assembly 1 is folded, reducing the overall height of the carrier after being folded, thereby reducing the occupied space and improving the folding and storage performance of the carrier. Meanwhile, since the rotating structure of the seat pocket assembly 1 relative to the frame 3 is arranged on the frame 3 and separated from the seat pocket assembly 1, the structure of the seat pocket assembly 1 can be simplified, the processing difficulty of the seat pocket assembly 1 is reduced, and the bidirectional mounting of the seat pocket assembly 1 relative to the frame 3 is facilitated. Furthermore, by arranging the seat pocket locking mechanism 5 and the seat pocket unlocking mechanism 2, the seat pocket mounting base 4 can be kept fixed with the frame 3 without rotating relative to the frame 3, and can be unlocked when the seat pocket assembly 1 needs to be folded and unfolded relative to the frame 3, thereby ensuring the safety and reliability of the carrier.

[0075] In the embodiment, the carrier is a stroller, that is, the user moves the carrier by pushing the carrier from the rear side of the carrier. In other embodiments, the carrier can be a trailer, that is, the user drags the carrier to move the carrier. The specific structure of the carrier is introduced by taking the carrier as a stroller in the embodiment. It is worth noting that when the carrier is a trailer, the structure of the seat pocket assembly 1 and the matching structure thereof relative to the frame 3 can be arranged as in the embodiment, and the embodiment will not be repeated here.

[0076] As shown in the figures, Figures 1 to 6 The frame 3 and the seat pocket assembly 1 can be unfolded and folded. When the frame 3 is in the frame unfolded state and the seat pocket assembly 1 is in the seat pocket unfolded state, the carrier is in the unfolded use state. When the frame 3 is in the frame folded state and the seat pocket assembly 1 is in the seat pocket folded state, the carrier is in the folded storage state.

[0077] The frame 3 comprises coaxially and rotatably connected first support 31, second support 32 and handrail 33, the lower end of the first support 31 is rotatably installed with two first support wheels 35, the lower end of the second support 32 is rotatably installed with second support wheels 36. When the frame 3 is in the frame unfolded state, the first support 31 and the second support 32 are both inclined from top to bottom, and the inclination extending directions of the first support 31 and the second support 32 are opposite, so that the first support wheel 35 and the second support wheel 36 are both supported on the ground; the handrail 33 is inclined from bottom to top to the direction away from the upper end of the first support 31, and the upper end of the handrail 33 is above the second support wheel 36 in the vertical direction. When the frame 3 is in the frame folded state, the first support 31, the second support 32 and the handrail 33 are relatively folded in the front-back direction.

[0078] In the present embodiment, the carrier is a trolley, so the first support 31 is inclined downward from back to front, the second support 32 is inclined downward from front to back, and the handrail 33 is inclined downward from back to front. In other embodiments, the carrier is a trailer, so the first support 31 is inclined downward from front to back, the second support 32 is inclined downward from back to front, and the handrail 33 is inclined downward from back to front.

[0079] It is worth noting that the "front", "back", "left", "right", "up", "down", "inside" and "outside" in the foregoing and the following are based on the direction of the relative movement direction when the carrier is in the use state, that is, the front side of a structure refers to the side of the structure facing the movement direction, and the back side of a structure refers to the side of the structure away from the movement direction.

[0080] In the present embodiment, the first support 31 is a U-shaped structure with an opening facing the seat pocket assembly 1, which comprises first support rods arranged oppositely left and right and a first cross rod connected between the lower ends of the two first support rods, and the lower ends of the two first support rods are installed with first support wheels 35; the second support 32 comprises second support rods arranged oppositely left and right and a second cross rod connected between the lower ends of the two second support rods, and the lower ends of the two second support rods are installed with second support wheels 36; the handrail 33 comprises handrail connecting rods arranged oppositely left and right and a handrail rod connected between the upper ends of the two handrail rods, and the lower end of the handrail connecting rod on the same side, the upper end of the first support rod and the upper end of the second support rod are coaxially and rotatably connected.

[0081] The frame 3 further comprises a frame lock mechanism, the frame lock mechanism has a frame locking state and a frame unlocking state, when the frame lock mechanism is in the frame locking state, the relative rotation between the first support 31, the second support 32 and the handrail 33 is limited, and the frame 3 is fixed in the frame unfolded state; when the frame lock mechanism is in the unlocking state, the first support 31, the second support 32 and the handrail 33 can be relatively rotated to switch to the frame folded state.

[0082] In order to improve the rotating connection convenience of the first support 31, the second support 32 and the handrail 33, the first support 31, the second support 32 and the handrail 33 are coaxially and rotatably connected through the rotating joint 34. The frame lock mechanism is installed at the rotating joint 34 to provide sufficient accommodation space for the frame lock mechanism.

[0083] It is worth mentioning that the structure of the frame 3 described above is only an exemplary structure, and other forms of frame 3 structures can also be applied to the present application, and the specific structure of the frame 3 is not limited in the present application. At the same time, the specific structure of the frame lock mechanism and the rotating joint 34 can also be set according to the prior art, which is not the focus of the present application, and will not be limited and elaborated here.

[0084] In the present embodiment, the seat pocket mounting seat 4 is rotatably mounted on the inner side of the frame 3, so that the rotation of the seat pocket assembly 1 and the seat pocket mounting seat 4 relative to the frame 3 will not cause collision with the structure on the frame 3, reducing the influence of the structure of the frame 3 on the folding and unfolding of the seat pocket assembly 1. Further, the rotation axis of the second support 32 and the first support 31 is coaxially arranged with the rotation axis of the seat pocket mounting seat 4 relative to the frame 3, so that the rotation axis of the seat pocket assembly 1 relative to the frame 3 is the same as the rotation axis of the frame 3 itself, reducing the size of the folded carrier and improving the folding convenience.

[0085] The rotation axis of the seat pocket mounting seat 4 relative to the rotating mounting seat 37 is defined as the second axis 10b. When the carrier is in the unfolded and used state, the distance between the uppermost end of the seat pocket assembly 1 and the second axis 10b is L1, the distance between the uppermost end of the handrail 33 and the second axis 10b is L2, the distance between the lower end of the first support 31 and the second axis 10b is L3, and the distance between the lower end of the second support 32 and the second axis 10b is L4. L1 is less than L2, L3 and L4, thereby avoiding interference of the structure of the frame 3 with the unfolding or folding of the seat pocket assembly 1.

[0086] In order to improve the setting of the seat pocket mounting seat 4 and the seat pocket locking mechanism 5, in the present embodiment, a rotating mounting seat 37 is arranged on the inner side of the frame 3, and the seat pocket mounting seat 4 is rotatably mounted on the rotating mounting seat 37. The seat pocket mounting seat 4 and the rotating mounting seat 37 form an accommodation space, and the seat pocket locking mechanism 5 is movably mounted in the accommodation space. Specifically, the rotating mounting seat 37 is located on the inner side of the rotating joint 34, and it can be fixed relative to any one of the first support 31, the second support 32 or the handrail 33.

[0087] As Figure 1 and Figure 7As shown, in the embodiment, the seat pocket assembly 1 comprises a seat frame 11 and a backrest frame 12, the backrest frame 12 is rotatably mounted to the seat frame 11 around a first axis 10a. Further, the backrest frame 12 is rotatably mounted to the inner side of the seat frame 11, and the seat pocket adapter 13 is arranged on the outer sides of the seat frame 11, and the seat pocket adapter 13 is detachably connected with the seat pocket mounting seat 4. Thus, the rotation of the backrest frame 12 relative to the seat frame 11 can be avoided to collide with the seat pocket adapter 13 and the seat pocket mounting seat 4 arranged on the outer side of the seat frame 11.

[0088] The seat pocket assembly 1 further comprises a front armrest 15, the front armrest 15 is in a U-shaped structure, and the two ends of the front armrest 15 are rotatably connected with the left and right sides of the seat frame 11 respectively, and the front armrest 15 is arranged on the upper side of the seat frame 11 to prevent the child from falling out of the seat pocket assembly 1 forwardly. The front armrest 15 is rotatable relative to the seat frame 11 around a third axis 10c to realize the folding and unfolding of the front armrest 15 relative to the seat frame 11.

[0089] Further, the armrest locking assembly is arranged between the front armrest 15 and the seat frame 11, the armrest locking assembly has an armrest locking state for limiting the relative rotation of the front armrest 15 and the seat frame 11 and an armrest unlocking state for allowing the relative rotation of the front armrest 15 and the seat frame 11. The specific structure of the front armrest 15, the structure of the armrest locking assembly, and the unlocking mode and unlocking structure required for switching the armrest locking assembly from the armrest locking state to the armrest unlocking state can be arranged according to the prior art, which is not the focus of the present application, and will not be described here.

[0090] In the embodiment, the backrest frame 12 comprises a backrest surrounding frame 121 arranged in an inverted U-shaped structure and two backrest rotating components 122 arranged oppositely, the two ends of the backrest surrounding frame 121 are connected with the two backrest rotating components 122 respectively, and the two backrest rotating components 122 are connected with the left and right sides of the seat frame 11 respectively. By arranging the backrest rotating components 122, the rotatable connection structure between the backrest frame 12 and the seat frame 11 is facilitated.

[0091] Preferably, a back support rod is connected between the two sides of the backrest surrounding frame 121 and / or the back sides of the backrest rotating components 122 to enhance the support performance for the child and improve the overall structural strength and rigidity of the backrest frame 12, and the back support rod is preferably in an arc-shaped rod structure with an opening facing the front armrest 15 to adapt to the back of the child. The backrest rotating component 122 comprises a backrest main side 1221 and two mounting rod portions 1222, wherein the backrest main side 1221 is rotatably connected with the seat frame 11, and the two mounting rod portions 1222 are detachably connected with the backrest surrounding frame 121 and the back support rod respectively.

[0092] The seat frame 11 comprises a seat body, the left and right inner sides of the seat body are rotationally connected with the two lower ends of the backrest frame 12, and specifically are rotationally connected with the backrest rotation part 122. Further, the seat body comprises a seat bottom plate 111 and seat side parts 112 connected to the left and right sides of the seat bottom plate 111, and the backrest frame 12 and the seat pocket mounting seat 4 are both connected with the seat side parts 112.

[0093] Further, the seat body further comprises an auxiliary support plate 113 rotationally mounted to the front end of the seat bottom plate 111, and the auxiliary support plate 113 is used for supporting the legs of the child, so as to improve the comfort of the child riding the vehicle. Preferably, the angle between the auxiliary support plate 113 and the seat bottom plate 111 is adjustable, so as to meet the support requirements of different children on different inclination angles of the auxiliary support plate 113, and at the same time, the auxiliary support plate 113 can be folded towards the lower side of the seat bottom plate 111, so as to reduce the volume of the seat pocket assembly 1 after being folded.

[0094] It can be understood that the structure of the seat body described above is only an example structure, and other structures of the existing seat frame 11 can also be applied to the present application. For example, in other embodiments, the seat frame 11 can be a frame 3 type structure, and the left and right sides of the seat frame 11 have rotationally mounted structures rotationally matched with the backrest frame 12.

[0095] In the present embodiment, the outer sides of the seat side parts 112 are outwardly convexly provided with rotation bosses, the two ends of the front armrest 15 are respectively rotationally sleeved on the two rotation bosses, and the upper end of the seat pocket adapter 13 is detachably mounted on the rotation boss, so that the rotation connection structure of the front armrest 15 and the seat frame 11 can be avoided from scratching the child, and at the same time, the setting of the seat pocket mounting seat 4 can also avoid interfering with the rotation of the front armrest 15 relative to the seat frame 11.

[0096] As shown in Figure 7 and Figure 8 , the seat pocket adapter 13 is plug-in matched with the seat pocket mounting seat 4, so as to improve the installation and dismounting convenience of the seat pocket assembly 1 and the seat pocket mounting seat 4. It is worth mentioning that the specific structure of the seat pocket adapter 13, the plug-in matching structure on the seat pocket adapter 13 and the seat pocket mounting seat 4, and the setting of the locking and unlocking structure of the plug-in part 42 and the seat pocket adapter 13 can all be set according to the prior art, and the present application does not limit and elaborate on this.

[0097] As shown in Figures 1 to 6 , in the present embodiment, each seat pocket adapter 13 can be plug-in matched with any seat pocket mounting seat 4, so that the seat pocket assembly 1 has a forward installation state and a reverse installation state relative to the frame 3. When the seat pocket assembly 1 is in the forward installation state, the seat pocket assembly 1 faces away from the armrest frame 33 of the frame 3, and when the seat pocket assembly 1 is in the reverse installation state, the seat pocket assembly 1 faces towards the armrest frame 33.

[0098] That is, when the seat pocket assembly 1 is in the forward installation state, the seat frame 11 and the front armrest 15 are both arranged on the front side of the backrest frame 12, and the backrest frame 12 is arranged obliquely forward from top to bottom, i.e., the child on the seat pocket assembly 1 faces the pushing direction of the carrier; when the seat pocket assembly 1 is in the reverse installation state, the seat frame 11 and the front armrest 15 are both arranged on the rear side of the backrest frame 12, the backrest frame 12 is arranged on the front side of the armrest frame 33, and the backrest frame 12 extends obliquely rearward from top to bottom, i.e., the child on the seat pocket assembly 1 faces away from the pushing direction of the carrier.

[0099] The above arrangement enables the carrier to have two unfolded use states and two folded storage states: when the seat pocket assembly 1 is in the forward installation state, the carrier is in the forward unfolded use state when both the frame 3 and the seat pocket assembly 1 are unfolded, and the carrier is in the forward folded storage state when both the frame 3 and the seat pocket assembly 1 are folded; when the seat pocket assembly 1 is in the reverse installation state, the carrier is in the reverse unfolded use state when both the frame 3 and the seat pocket assembly 1 are unfolded, and the carrier is in the reverse folded storage state when both the frame 3 and the seat pocket assembly 1 are folded.

[0100] To improve the convenience of the cooperation between the seat pocket adapter 13 and the seat pocket mounting seat 4, the seat pocket adapter 13 extends in the vertical direction when the carrier is in any unfolded use state, so that the seat pocket adapter 13 can be plugged with the seat pocket mounting seat 4 vertically regardless of whether the seat pocket assembly 1 is installed forwardly or reversely. That is, in the present embodiment, the third axis 10c is arranged vertically to the plane where the second axis 10b is located when the carrier is in the use state. That is, the lower end of the seat pocket mounting seat 4 is rotationally connected with the frame 3, and the upper end of the seat pocket mounting seat 4 is pluggably connected with the seat pocket adapter 13 when the carrier is in the use state.

[0101] In the present embodiment, the seat pocket mounting seat 4 extends substantially in the front-rear direction when the carrier is in the folded storage state, so that the height of the seat pocket mounting seat 4 in the vertical direction can be reduced, thereby facilitating the reduction of the overall height after folding. Specifically, the first end of the seat pocket mounting seat 4 is rotationally connected with the frame 3, and the second end is pluggably connected with the seat pocket adapter 13. The seat pocket mounting seat 4 extends forward from the first end to the second end when the carrier is in the forward folded storage state (as shown in FIG. 8A); the seat pocket mounting seat 4 extends rearward from the first end to the second end when the carrier is in the reverse folded storage state (as shown in FIG. 8B). Figure 3 Figure 6

[0102] Figure 9 and Figure 10 ​​​As shown, the rotating mounting base 37 has a rotating shaft part 371, and the seat pocket mounting base 4 is sleeved on the rotating shaft part 371. The seat pocket mounting base 4 includes a rotating seat part 41 and a plug-in part 42 connected to the upper side of the rotating seat part 41, and the rotating seat part 41 is sleeved on the rotating shaft part 371. The seat pocket adapter 13 has a socket, and the plug-in part 42 is plug-in mounted in the socket. Further, the rotating seat part 41 is provided with a rotating groove, the rotating shaft part 371 is rotatably inserted into the rotating groove, and a limiting ring surface facing the rotating mounting base 37 is arranged in the rotating groove, and the limiting ring surface abuts against the end surface of the rotating shaft part 371 to limit the depth of plug-in cooperation of the two.

[0103] In order to limit the rotation angle of the rotating mounting base 37 and the seat pocket mounting base 4, one of the rotating mounting base 37 and the seat pocket mounting base 4 is provided with a limiting sliding groove 373, and the other is provided with a limiting protrusion 43, the limiting protrusion 43 is slidingly arranged in the limiting sliding groove 373, and the limiting sliding groove 373 is an arc-shaped groove coaxial with the second axis 10b. The abutment of the limiting protrusion 43 and the groove walls at both ends of the limiting sliding groove 373 can limit the relative rotation of the seat pocket mounting base 4 and the rotating mounting base 37, that is, limit the stroke of the rotation of the seat pocket mounting base 4 relative to the rotating mounting base 37, thereby limiting the stroke of the folding rotation of the seat pocket assembly 1 relative to the frame 3, avoiding collision between the seat pocket assembly 1 and the frame 3 due to over-rotation. In the embodiment, the limiting sliding groove 373 is arranged on the end surface of the rotating mounting base 37, and the groove bottom of the rotating groove is provided with the limiting protrusion 43.

[0104] The seat pocket locking mechanism 5 includes a seat pocket locking piece 51 mounted in the seat pocket mounting base 4, and the seat pocket locking piece 51 is slidingly arranged between the seat pocket unlocking position and the seat pocket locking position. The seat pocket unlocking mechanism 2 can actuate the seat pocket locking piece 51 to slide from the seat pocket locking position to the seat pocket unlocking position. By sliding the seat pocket locking piece 51, the unlocking and locking of the seat pocket locking mechanism 5 are realized, which can simplify the locking and unlocking operation of the seat pocket locking mechanism 5 and simplify the cooperation structure between the seat pocket locking mechanism 5 and the seat pocket unlocking mechanism 2.

[0105] In other embodiments, the seat pocket locking piece 51 can also be rotatably mounted in the seat pocket mounting base 4, and the locking and unlocking of the seat pocket locking mechanism 5 are realized by the rotation of the seat pocket locking piece 51 in the seat pocket mounting base 4. The seat pocket unlocking mechanism 2 actuates the seat pocket locking piece 51 to rotate.

[0106] The seat pocket locking member 51 is provided with seat pocket locking teeth 511, which are spaced apart around the second axis 10b. The rotating mounting seat 37 is provided with fixed tooth grooves 372, and the seat pocket mounting seat 4 is provided with rotating tooth grooves. The fixed tooth grooves 372 and the rotating tooth grooves are arranged one-to-one with the seat pocket locking teeth 511. Both the rotating tooth grooves and the fixed tooth grooves 372 extend along the direction of the second axis 10b. When the seat pocket locking mechanism 5 is in the rotating locking position, the seat pocket locking teeth 511 are inserted into the fixed tooth grooves 372 and the rotating tooth grooves at the same time. When the seat pocket locking mechanism 5 is in the rotating unlocking position, the seat pocket locking teeth 511 slide in the direction away from the seat pocket mounting seat 4 to exit the rotating tooth grooves.

[0107] The seat pocket locking mechanism 5 further includes a locking reset member 52. The seat pocket locking member 51 is slidably mounted between the rotating mounting seat 37 and the seat pocket mounting seat 4 along the second axis 10b. The locking reset member 52 is used to apply an elastic force to the seat pocket locking member 51 to keep it in the locking position cooperating with the rotating mounting seat 37 and the seat pocket mounting seat 4. In the absence of an unlocking force, the seat pocket locking member 51 is always stably in the rotating locking position.

[0108] To improve the installation convenience of the seat pocket locking mechanism 5, an end face of the rotating shaft portion 371 is provided with a fixed groove. The groove wall of the fixed groove and the groove wall of the rotating groove jointly form a containing space, and the seat pocket locking mechanism 5 is installed in the containing space. Further, the groove bottom of the fixed groove is provided with a mounting shaft portion 372, and the axis of the mounting shaft portion 372 is the second axis 10b. The seat pocket locking member 51 is slidably sleeved on the mounting shaft portion 372. The groove wall of the fixed groove is provided with the fixed tooth groove 372, and the groove wall of the rotating groove is provided with the rotating tooth groove. Further, a limiting sliding groove 373 is arranged on the end face of the mounting shaft portion 372.

[0109] The locking reset member 52 is installed in the fixed groove, and the first end of the locking reset member 52 abuts against the groove bottom of the fixed groove. The second end of the locking reset member 52 abuts against the seat pocket locking member 51. The locking reset member 52 is always in a compressed state to apply an elastic force to the seat pocket locking member 51 towards the seat pocket mounting seat 4. Preferably, an annular groove is formed in the end face of the seat pocket locking member 51, and the second end of the locking reset member 52 is inserted into the annular groove and abuts against the groove bottom of the annular groove.

[0110] Furthermore, the seat locking member 51 has a mating part 512. When the seat locking member 51 is in the seat unlock position, the mating part 512 is inserted into the side of the seat mounting base 4 facing the seat assembly 1. When the actuator 22 moves toward the seat locking mechanism 5, it pushes the mating part 2211 to slide away from the seat assembly 1 to unlock. The provision of the mating part 512 can shorten the distance between the seat locking member 51 and the seat unlocking mechanism 2 when the seat unlocking mechanism 2 is in the initial state, thereby reducing the stroke of the seat unlocking mechanism 2 when it pushes the mating part 2211, thus reducing the space occupied by the seat unlocking mechanism 2.

[0111] In this embodiment, at least two mating components 512 are spaced apart around the rotation axis of the seat mounting base 4 to improve the stability of the force on the seat locking member 51 when the seat unlocking mechanism 2 actuates the mating components 512.

[0112] Furthermore, the seat mounting base 4 has an insertion hole 411 on the side facing the seat assembly 1. When the seat locking member 51 is in the seat locked position, the mating member 512 is inserted into the insertion hole 411. The insertion hole 411 and the mating member 512 are arranged in a one-to-one correspondence. When the seat unlocking mechanism 2 pushes against the mating member 2211, a portion of the seat unlocking mechanism 2 can be inserted into the insertion hole to push the seat locking member 51 to move in a direction away from the seat assembly 1.

[0113] When the seat locking member 51 is in the seat locking position, the end face of the mating member 512 is flush with the side of the seat mounting base 4 facing the seat assembly 1 to prevent the mating member 512 from protruding from the seat mounting base 4 and causing scratches on the seat assembly 1. Furthermore, all mating members 512 are symmetrically arranged with respect to the plane containing the second axis 10b and the third axis 10c, so that the actuating part 222 can be inserted into the hole 411 regardless of whether the seat assembly 1 is in a forward or reverse installation state. In this embodiment, two actuating parts 222 are spaced apart in the vertical direction.

[0114] like Figure 7 and Figure 12 As shown, the seat frame 11 and the backrest frame 12 can rotate relative to each other to fold and unfold around the first axis 10a. When the backrest frame 12 moves towards the seat frame 11 to fold, the backrest frame 12 drives the seat locking mechanism 5 to unlock. Thus, by rotating the backrest frame 12, the user can simultaneously fold the backrest frame 12 relative to the seat frame 11 and actuate the seat unlocking mechanism 2 to unlock the seat locking mechanism 5. This allows the seat mounting base 4 and the seat assembly 1 to rotate and fold relative to the frame 3, improving the folding efficiency of the seat assembly 1 relative to the frame 3 and enhancing the convenience of the vehicle's folding operation.

[0115] like Figures 14 to 16As shown, the seat pocket assembly 1 further comprises a seat back locking assembly and a seat back unlocking mechanism, the seat back locking assembly comprises a seat back locking piece 14, the seat back locking piece 14 has a seat back locking state in which the seat frame 11 and the backrest frame 12 are fixed relative to each other and a seat back unlocking state in which the backrest frame 12 and the seat frame 11 can rotate relative to each other, and the seat back unlocking mechanism is used to switch the seat back locking assembly from the seat back locking state to the seat back unlocking state.

[0116] Specifically, the seat back locking piece 14 is slidably mounted between the backrest frame 12 and the seat frame 11 along the first axis 10a, when the seat back locking assembly is in the seat back locking state, the seat back locking piece 14 cooperates with both the seat frame 11 and the backrest frame 12 to limit the relative rotation between the seat frame 11 and the backrest frame 12; when the seat back locking assembly is in the seat back unlocking state, the seat back locking piece 14 cooperates with one of the seat frame 11 and the backrest frame 12 and is separated from the other, so that the backrest frame 12 and the seat frame 11 can rotate relative to each other. Further, the seat back locking assembly further comprises a seat back elastic piece, the seat back elastic piece is used to apply an elastic force to the seat back locking piece 14 to keep or restore it to the seat back locking state, so that the seat back locking assembly can be stably kept in the seat back locking state without unlocking external force, thereby improving the use safety of the seat pocket assembly 1 and the carrier.

[0117] The seat back locking piece 14 is a ring structure coaxial with the first axis 10a, and a plurality of seat back locking teeth 141 are arranged on the seat back locking piece 14 in a circumferential direction, the seat frame 11 is provided with seat tooth grooves 1122, and the backrest frame 12 is provided with backrest tooth grooves 1227, the seat tooth grooves 1122 and the backrest tooth grooves 1227 both extend along the direction of the first axis 10a, and the seat tooth grooves 1122 and the backrest tooth grooves 1227 are arranged one by one corresponding to the seat back locking teeth 141. When the seat pocket locking mechanism 5 is in the locked state, the seat back locking teeth 141 are inserted and fitted with the seat tooth grooves 1122 and the backrest tooth grooves 1227 to limit the relative rotation of the seat frame 11 and the backrest frame 12; when the seat pocket locking mechanism 5 is in the rotation unlocking position, one of the seat back locking teeth 141 and the seat tooth grooves 1122 is inserted and fitted, and the other is separated from the backrest tooth grooves 1227.

[0118] The carrier further comprises a seat back unlocking assembly, the seat back unlocking assembly can actuate the seat back locking piece 14 to move along the first axis 10a, so as to switch the seat back locking assembly between the seat back locking state and the seat back unlocking state. The specific structure of the seat back locking assembly and the seat back unlocking mechanism can be set according to the prior art, which is not the focus of the present application, and will not be described here.

[0119] That is, when the seat pocket assembly 1 needs to be folded, first, the seat back locking assembly is unlocked, and then the backrest frame 12 is rotated, so that in the process of rotating and folding relative to the seat frame 11, the seat pocket unlocking mechanism 2 is switched from the rotating locking position to the rotating unlocking position, so that the overall folding of the seat pocket assembly 1 and the seat pocket mounting seat 4 relative to the frame 3 is improved. The convenience of the folding operation; at the same time, the setting of the seat back locking assembly can also avoid the seat pocket unlocking mechanism 2 from being switched to the rotating unlocking position due to the accidental pushing of the backrest frame 12.

[0120] As shown in Figures 11 to 13 The seat pocket unlocking mechanism 2 has an actuating piece 22 matched with the backrest frame 12, and the actuating piece 22 has a first position and a second position relative to the seat pocket assembly 1; when the actuating piece 22 moves from the first position to the second position, the actuating piece 22 moves to cooperate with the seat pocket locking mechanism 5 to drive the seat pocket locking mechanism 5 to unlock. The setting of the actuating piece 22 can realize the transmission between the backrest frame 12 and the seat pocket locking mechanism 5, realize the rotating drive of the actuating piece 22 by the backrest frame 12, and realize the action of the seat pocket locking mechanism 5 by the actuating piece 22.

[0121] Specifically, in the embodiment, when the actuating piece 22 moves from the first position to the second position, the actuating seat pocket locking piece 51 slides to the seat pocket unlocking position to unlock. That is, in the embodiment, when the actuating piece 22 moves from the first position to the second position, the actuating piece 22 pushes the seat pocket locking piece 51 to act, so that the rotating movement of the backrest frame 12 is converted into the sliding operation of the seat pocket locking piece 51.

[0122] In the embodiment, the seat pocket unlocking mechanism 2 has an initial state and an unlocking actuating state, when the seat pocket unlocking mechanism 2 is in the initial state, the actuating piece 22 is in the first position, when the seat pocket unlocking mechanism 2 is in the unlocking actuating state, the actuating piece 22 is in the second position.

[0123] Preferably, when the seat pocket unlocking mechanism 2 is in the initial state, the seat pocket unlocking mechanism 2 is hidden inside the seat pocket assembly 1, so as to avoid the seat pocket unlocking mechanism 2 from being exposed and easily damaged by knocking, and also to avoid the seat pocket unlocking mechanism 2 from interfering with the disassembly of the seat pocket assembly 1 and the seat pocket mounting seat 4; when the seat pocket unlocking mechanism 2 is in the unlocking actuating state, the actuating piece 22 partially protrudes outside the seat pocket assembly 1 to push the seat pocket locking piece 51. In other embodiments, the seat pocket unlocking mechanism 2 can be partially located inside the seat pocket assembly 1, and the actuating piece 22 is exposed outside the seat pocket assembly 1.

[0124] To improve the actuation reliability of the actuating member 22 on the seat pocket locking member 51, in the embodiment, the side of the actuating member 22 towards the seat pocket locking mechanism 5 is provided with protruding actuating portions 222, and when the actuating member 22 is moved from the first position to the second position, the actuating portions 222 protrude out of the seat pocket assembly 1 to unlock the seat pocket locking mechanism 5. To improve the force stability of the seat pocket locking mechanism 5, the actuating portions 222 are preferably spaced apart at least two around the second axis 10b, and the insertion holes 411 and the avoiding insertion holes 1141 are one-to-one correspondingly arranged with the actuating portions 222.

[0125] Specifically, the side of the seat frame 11 towards the seat pocket locking mechanism 5 is provided with avoiding insertion holes 1141, the avoiding insertion holes 1141 are one-to-one correspondingly arranged with the actuating portions 222, and when the seat pocket locking mechanism 5 is in the locked state, the avoiding insertion holes 1141 are one-to-one correspondingly and alignedly arranged with the insertion holes 411. The actuating portions 222 can sequentially pass through the avoiding insertion holes 1141 and the insertion holes 411 to push the cooperating components 512 of the seat pocket locking member 51, thereby reducing the size of the hole on the seat frame 11, ensuring the overall structural beauty and structural reliability of the seat frame 11 and the carrier.

[0126] When the actuating member 22 is in the first position, the actuating portions 222 are arranged in the avoiding insertion holes 1141 and the outer ends of the actuating portions 222 are located inside the avoiding insertion holes 1141, so as to avoid the actuating portions 222 protruding outwards from the outer side of the seat frame 11. With such an arrangement, the distance between the actuating portions 222 and the seat pocket locking mechanism 5 when the actuating member 22 is in the first position can be shortened, so that when the actuating member 22 is switched from the first position to the second position, the distance of the actuating portions 222 moving along the second axis 10b can be reduced, thereby reducing the overall structural size of the seat pocket unlocking mechanism 2 and improving the structural compactness.

[0127] The actuating portions 222 are one-to-one correspondingly arranged with the cooperating components 512, so as to ensure the force stability of the actuating member 22 pushing the seat pocket locking member 51, and reduce the size of a single actuating portion 222. In other embodiments, one actuating portion 222 can simultaneously push two or more cooperating components 512.

[0128] The actuating portions 222 are columnar structures, and the length direction of the columnar structures is parallel to the rotation axis of the seat pocket mounting seat 4, thereby reducing the size of the actuating portions 222 and ensuring the smoothness of the actuating portions 222 sliding through the avoiding insertion holes 1141.

[0129] In the embodiment, the actuating member 22 is movably arranged on the seat frame 11, and the seat pocket unlocking mechanism 2 further comprises a control assembly arranged in cooperation with the actuating member 22, the control assembly is arranged in cooperation with the backrest frame 12 and drives the actuating member 22 to move from the first position to the second position when the backrest frame 12 is folded towards the seat frame 11. Arranging the actuating member 22 on the seat frame 11 can simplify the installation of the actuating member 22 and improve the flexibility of the arrangement of the actuating member 22 relative to the backrest frame 12.

[0130] In other embodiments, the actuating member 22 is arranged on the backrest frame 12 and moves synchronously with the backrest frame 12, and when the backrest frame 12 is folded towards the seat, the actuating member 22 moves with the backrest frame 12 to the position for unlocking the seat pocket locking mechanism 5.

[0131] As shown in Figures 13 to 17 , the control assembly comprises an actuating protrusion 26 arranged on the backrest frame 12, the actuating protrusion 26 rotates synchronously with the backrest frame 12 and pushes the actuating member 22 to move towards the seat pocket locking mechanism 5 during rotation to unlock the locking mechanism. By arranging the actuating protrusion 26, the rotation of the backrest frame 12 can be converted into the movement of the actuating member 22 through the actuating protrusion 26, which simplifies the arrangement of the actuating member 22 and facilitates the movement of the actuating member 22 to extend out of the seat pocket assembly 1 to push the locking member of the seat pocket locking mechanism.

[0132] Further, the actuating protrusion 26 has a curved profile extending as a whole and is arranged around a first axis 10a, the first axis 10a being the rotation axis of the backrest frame 12, and the side of the actuating protrusion 26 facing the actuating member 22 has an actuating helical surface 261, the actuating helical surface 261 has an actuating starting end 2611 and an actuating ending end 2612 arranged oppositely, and from the actuating starting end 2611 to the actuating ending end 2612, the actuating helical surface 261 gradually moves away from the backrest frame 12. Thus, when the actuating protrusion 26 rotates with the backrest frame 12, the cooperation position of the actuating member 22 and the actuating helical surface 261 gradually moves away from the backrest frame 12, so that the actuating helical surface 261 pushes the actuating member 22 to move in the direction towards the seat pocket locking mechanism 5; the arrangement of the actuating helical surface 261 can simplify the conversion structure of the rotation of the backrest frame 12 to the movement of the actuating member 22 and reduce the floor space occupied by the control assembly.

[0133] When the backrest 12 is folded towards the seat frame 11, the part of the actuating helical surface 261 close to the actuating end 2612 is matched with the actuating member 22, and when the backrest 12 is unfolded from the seat frame 11, the part of the actuating helical surface 261 close to the actuating start end 2611 is matched with the actuating member 22. Thus, the angle of rotation of the backrest 12 required when the actuating member 22 is switched from the first position to the second position can be controlled by the position setting of the start and end of the actuating helical surface 261, so as to ensure the driving reliability of the backrest 12 to the actuating member 22, and meanwhile, the size of the actuating protrusion 26 can be reduced when the backrest 12 actuates the actuating member 22 from the first position to the second position, so as to reduce the floor space occupied by the actuating protrusion 26.

[0134] In the embodiment, the control assembly further has a transmission unit arranged between the actuating protrusion 26 and the actuating member 22, and the transmission unit is matched with the actuating protrusion 26 and the actuating member 22 respectively. In this way, the actuating protrusion 26 does not need to be in direct contact with the actuating member 22, so as to improve the flexibility of the position setting of the actuating member 22 and the flexibility and rationality of the layout of the seat pocket unlocking mechanism 2 in the seat pocket assembly 1.

[0135] In other embodiments, the actuating member 22 is directly matched with the actuating protrusion 26, that is, the actuating member 22 is arranged on the side of the actuating protrusion 26 away from the backrest 12, and the backrest 12 is folded towards the seat frame 11 to push the actuating member 22 to move along the first axis 10a.

[0136] In the embodiment, the transmission unit includes a first unlocking member 21, which is slidably mounted on the seat frame 11 along the first axis 10a, and has an unlocking matching part 212 matched with the actuating helical surface 261. When the actuating protrusion 26 is rotated with the backrest 12 towards the seat frame 11, the unlocking matching part 212 slides along the actuating helical surface 261 from the actuating start end 2611 to the actuating end 2612, so as to drive the actuating member 22 to move towards the actuating member 22 under the action of the actuating helical surface 261. By arranging the first unlocking member 21 which can slide along the first axis 10a, the folding rotation of the backrest 12 relative to the seat frame 11 can push the first unlocking member 21 to slide along the first axis 10a, so as to push the actuating member 22 to slide, which can improve the convenience of the cooperation between the first unlocking member 21 and the actuating protrusion 26, and meanwhile, the sliding arrangement of the first unlocking member 21 and the actuating member 22 can simplify the cooperation structure between the first unlocking member and the actuating member 22.

[0137] In the embodiment, the unlocking fitting part 212 is a groove body arranged on the side of the first unlocking piece 21 facing the actuating protrusion 26, the actuating protrusion 26 rotates in the groove body and pushes the first unlocking piece 21 to move in the process of rotation. By arranging the unlocking fitting part 212 as a groove body structure, the actuating protrusion 26 can be located inside the groove body, avoiding the actuating protrusion 26 from being separated from the first unlocking piece 21, ensuring the stability and reliability of the cooperation between the actuating protrusion 26 and the first unlocking piece 21; at the same time, such arrangement can also reduce the floor space occupied by the operating assembly in the direction of the first axis 10a, thereby reducing the overall floor space of the seat pocket unlocking mechanism 2.

[0138] Further, part of the groove wall of the groove body forms a matching helical surface 2121, the matching helical surface 2121 abuts and cooperates with the actuating helical surface 261, thereby being able to increase the contact area between the unlocking fitting part 212 and the actuating helical surface 261, improve the pushing reliability and stability of the actuating protrusion 26 to the first unlocking piece 21, and increase the force balance of the first unlocking piece 21 sliding along the first axis 10a.

[0139] In order to further improve the movement reliability of the first unlocking piece 21, the actuating protrusion 26 is provided in plurality, and the plurality of actuating protrusions 26 are arranged in a ring shape and arranged around the first axis 10a. The unlocking fitting part 212 is arranged in one-to-one correspondence with the actuating protrusion 26, thereby making the first unlocking piece 21 have multiple force positions around the first axis 10a, improving the force stability of the first unlocking piece 21.

[0140] In other embodiments, the rotation of the backrest frame 12 around the first axis 10a can also drive the movement of the actuating piece 22 by using other structures, for example, a gear structure is arranged on the backrest frame 12, the axis of the gear structure is coaxial with the first axis 10a; a rack structure is arranged on the actuating piece 22, the rack structure extends along the first axis 10a, and the rack structure is engaged with the gear structure. Or, a screw structure can be connected to the backrest frame 12, and the actuating piece 22 is threadedly screwed on the screw structure, thereby making the rotation of the backrest frame 12 around the first axis 10a be converted into the movement of the first unlocking piece 21 along the first axis 10a.

[0141] Further, one of the first unlocking piece 21 and the seat frame 11 is provided with an anti-rotation protrusion 1124, and the other is provided with an anti-rotation groove 2111 extending along the first axis 10a, and the anti-rotation protrusion 1124 is slidingly arranged in the anti-rotation groove 2111 along the first axis 10a. Through the arrangement of the anti-rotation protrusion 1124 and the anti-rotation groove 2111, the position of the first unlocking piece 21 and the seat frame 11 in the circumferential direction of the first axis 10a can be limited, and relative rotation of the first unlocking piece 21 and the seat frame 11 is avoided, so as to ensure that the first unlocking piece 21 can only slide along the second axis 10b, and the actuation reliability of the first unlocking piece 21 to the second unlocking piece 23 is ensured. The anti-rotation groove 2111 is preferably spaced apart at least two around the first axis 10a.

[0142] As shown in Figures 14 to 16 To improve the installation convenience of the first unlocking piece 21 and the seat-back locking piece 14, the seat frame 11 and the backrest frame 12 are formed with a first annular cavity and a second annular cavity on the same side, the second annular cavity is coaxially and spaced apart from the outside of the first annular cavity, the seat-back locking piece 14 is in the form of an annular structure and is slidingly arranged in the second annular cavity, and the first unlocking piece 21 is in the form of an annular structure and is slidingly arranged in the first annular cavity. The outer annular cavity wall of the second annular cavity is provided with a backrest tooth groove 1227 and a seat tooth groove 1122. This arrangement allows the seat-back locking piece 14 to be spaced apart and arranged outside the first unlocking piece 21, which not only avoids interference between the seat-back locking piece 14 and the first unlocking piece 21, but also reduces the size requirement of the seat frame 11 and the backrest frame 12 in the direction of the second axis 10b, thereby improving the compactness of the interface.

[0143] Specifically, the side of the seat body facing the backrest frame 12 is provided with a first recess 1121, the bottom of the first recess 1121 is provided with a first protruding ring 1123, and the first protruding ring 1123 separates the inside and outside of the first recess 1121 into a first inner annular groove 11211 and a first outer annular groove 11212; the side of the backrest frame 12 facing the seat body is provided with a second recess 1223, the bottom of the second recess 1223 is provided with a second annular portion 1225, and the second annular portion 1225 separates the second recess 1223 into a second inner annular groove 12232 and a second outer annular groove 12231. The first inner annular groove 11211 and the second inner annular groove 12232 are opposite and form a first annular cavity, and the first outer annular groove 11212 and the second outer annular groove 12231 are opposite and form a second annular cavity. The bottom of the second inner annular groove 12232 is provided with an actuating protrusion 26.

[0144] One of the seat frame 11 and the backrest frame 12 is provided with a seat back rotating shaft 115, and the other rotatingly sleeved on the seat back rotating shaft 115, and the outer circumferential wall of the seat back rotating shaft 115 forms the inner annular cavity wall of the first annular cavity, i.e. the first unlocking member 21 is sleeved on the seat back rotating shaft 115. By arranging the seat back rotating shaft 115, the rotating cooperation convenience and reliability of the backrest frame 12 and the seat frame 11 can be improved. In the embodiment, the seat back rotating shaft 115 is arranged on the seat frame 11 and the axis thereof is the first axis 10a, and the center of the second groove 1223 is provided with a rotating ring part 1226 which is sleeved on the seat back rotating shaft 115.

[0145] In the embodiment, the actuating member 22 is arranged non-coaxially with the first unlocking member 21, so that the footprint of the seat pocket unlocking mechanism 2 in the direction of the first axis 10a can be reduced. In other embodiments, the actuating member 22 can also be arranged coaxially with the first unlocking member 21.

[0146] Further, the actuating member 22 is arranged inside the seat frame 11 and separated from the backrest frame 12, specifically, the actuating member 22 is arranged on the side of the seat body away from the backrest frame 12, so that the problem of requiring a large space between the seat frame 11 and the backrest frame 12 due to the arrangement of the seat unlocking mechanism therebetween can be avoided, the connecting structure between the seat frame 11 and the backrest frame 12 can be simplified, and the size requirement of the backrest rotating part 122 can be reduced.

[0147] In order to protect the actuating member 22 and improve the dismounting convenience of the actuating member 22, in an embodiment, side cover plates 114 can also be detachably connected to the left and right outer sides of the seat body, and an installation space is formed between the seat body and the side cover plates 114, and the actuating member 22 is movably installed between the seat body and the side cover plates 114. The arrangement of the side cover plates 114 is conducive to the dismounting of the actuating member 22 and the shielding protection of the actuating member 22. Specifically, the avoiding insertion hole 1141 is arranged on the side cover plate 114.

[0148] Further, in the embodiment, the first end of the seat back rotating shaft 115 is connected with the side cover plate 114, and the second end of the seat back rotating shaft 115 penetrates through the groove bottom of the first groove 1121 and is rotationally connected with the backrest frame 12, so that the structure of the seat body can be simplified, the processing difficulty of the seat body can be reduced, and the installation and positioning of the side cover plate 114 on the seat body can be realized through the plug-in cooperation of the seat back rotating shaft 115 and the seat body, and the assembly efficiency can be improved. The seat back rotating shaft 115 is preferably integrally formed with the side cover plate 114. In another embodiment, the seat back rotating shaft 115 is protruded on the groove bottom of the first groove 1121 and integrally formed with the seat body. In another embodiment, the seat back rotating shaft 115 can be fixedly arranged on the seat frame 11.

[0149] As Figures 12 to 14As shown, in the embodiment, the transmission unit further comprises a second unlocking member 23, which cooperates with the first unlocking member 21 and the actuating member 22 respectively, so that the movement cooperation between the first unlocking member 21 and the actuating member 22 can be realized while reducing the size of the actuating member 22 and the first unlocking member 21, and the position setting flexibility of the actuating member 22 is improved. In other embodiments, the first unlocking member 21 can also directly contact and cooperate with the actuating member 22, so that the movement of the first unlocking member 21 directly drives the actuating member 22 to act.

[0150] The first axis 10a is arranged in parallel and spaced apart behind the second axis 10b, so that the rotation connection position of the backrest 12 and the seat frame 11 can be arranged rearward relative to the rotation connection position of the seat pocket assembly 1 and the frame 3, so as to increase the depth of the seat pocket assembly 1 in the front-rear direction, and improve the stability and comfort of the child sitting in the seat pocket assembly 1.

[0151] In other embodiments, the first axis 10a and the second axis 10b can be coaxially arranged, and at this time the actuating member 22 can directly contact and cooperate with the actuating protrusion 26. In other embodiments, the first axis 10a and the second axis 10b can be arranged in vertical direction and in parallel and spaced apart.

[0152] Further, in the vertical direction, the first axis 10a is located between the second axis 10b and the third axis 10c, and the first axis 10a is located on the side of the seat pocket adapter 13 away from the front end of the seat frame 11, so as to ensure the space required for the cooperation between the seat pocket adapter 13 and the seat pocket mounting seat 4 while reducing the size of the seat pocket unlocking mechanism 2.

[0153] The second unlocking member 23 is movably mounted on the seat frame 11 and is provided with a first pushing member 231 and a second pushing member 234 at two ends respectively, the first pushing member 231 is in abutting cooperation with the first unlocking member 21, and the second pushing member 234 is in abutting cooperation with the actuating member 22. When the actuating protrusion 26 rotates with the backrest 12 towards the seat frame 11, the movement of the first unlocking member 21 pushes the first pushing member 231, so that the second pushing member 234 pushes the actuating member 22 to move in the direction towards the seat pocket locking mechanism 5 to drive the seat pocket locking mechanism 5 to unlock. This kind of arrangement makes the movement of the first unlocking member 21 push the second unlocking member 23 to move, and the movement of the second unlocking member 23 pushes the actuating member 22 to move, and there is no need for complex connection structure between the second unlocking member 23 and the first unlocking member 21 and the actuating member 22, which can simplify the structure of the seat pocket unlocking mechanism 2, reduce the occupied space, and at the same time improve the disassembly and assembly efficiency of the seat pocket unlocking mechanism 2.

[0154] In other embodiments, the two ends of the second unlocking member 23 can be hinged with the first unlocking member 21 and the actuating member 22, so that the movement of the first unlocking member 21 drives the actuating member 22 to move through the rotation of the second unlocking member 23.

[0155] Further, the second unlocking piece 23 is slidingly arranged on the seat frame 11, and when the actuating protrusion 26 rotates the seat frame 11 relative to the backrest frame 12, the first unlocking piece 21 pushes the second unlocking piece 23 to slide in a direction towards the actuating piece 22. By slidingly arranging the second unlocking piece 23, the installation of the second unlocking piece 23 on the seat frame 11 can be simplified, the space required by the second unlocking piece 23 can be reduced, and the structural compactness can be improved. Meanwhile, the second unlocking piece 23 moves in a direction towards the actuating piece 22, so that the moving direction of the second unlocking piece 23 is perpendicular to the moving directions of the first unlocking piece 21 and the actuating piece 22, which is beneficial to simplify the pushing structure between the first unlocking piece 21 and the second unlocking piece 23 and to simplify the pushing structure between the second unlocking piece 23 and the actuating piece 22.

[0156] As shown in Figure 14 , Figure 18 and Figure 19 , the first unlocking piece 21 has a pressing portion 213 matched with a first pushing portion 231, the pressing portion 213 has a first inclined surface 2131, and the first pushing portion 231 has a second inclined surface 2311. In a direction away from the backrest frame 12, the first inclined surface 2131 is inclined in a direction away from the actuating piece 22, and the first inclined surface 2131 is in abutment with the second inclined surface 2311. By abutting the first inclined surface 2131 and the second inclined surface 2311, the actuation of the first unlocking piece 21 on the second unlocking piece 23 is realized, the structure is simple, the operation is convenient, and the structure of the seat pocket unlocking mechanism 2 can be simplified, and the floor space of the seat pocket unlocking mechanism 2 can be reduced. Specifically, the movement of the first unlocking piece 21 away from the backrest frame 12 actuates the second unlocking piece 23 to slide in a direction towards the actuating piece 22.

[0157] To improve the setting convenience of the first unlocking piece 21, the first unlocking piece 21 includes a mounting ring portion 211 slidingly sleeved on the seat back rotating shaft 115, a first end of the mounting ring portion 211 is provided with an actuating sliding groove, a second end of the mounting ring portion 211 extends outward in an axial direction and has the pressing portion 213, the pressing portion 213 is provided with the first inclined surface 2131, the seat side portion 112 of the seat body is provided with a through hole 1126, and the pressing portion 213 slidingly passes through the seat body through the through hole 1126. Further, an anti-rotation groove 2111 is formed in the outer peripheral wall of the mounting ring portion 211. By arranging the pressing portion 213, the size of the first unlocking piece 21 passing out of the seat body can be reduced, so that the size of the avoiding through hole can be reduced, and the overall structural strength and rigidity of the seat frame 11 can be better ensured.

[0158] In this embodiment, the pressing part 213 that cooperates with the second unlocking member 23 is located below the seat back pivot 115, thereby allowing the second unlocking member 23 to be located below the seat back pivot 115 and thus avoiding interference between the second unlocking member 23 and the seat back pivot 115. In this embodiment, when the vehicle is in the unfolded state, the first inclined surface 2131 extends downward at an angle toward the backrest frame 12.

[0159] In this embodiment, both the actuator 22 and the second unlocking member 23 are installed between the side sealing plate 114 and the seat body to improve the ease of installation and removal of the actuator 22 and the second unlocking member 23, while avoiding excessive occupation of the inner space of the seat frame 11 by the seat unlocking mechanism 2. To improve the ease of cooperation between the actuator 22 and the first unlocking member 21, the end of the first unlocking member 21 away from the backrest 12 extends out of the seat body on the side away from the backrest 12.

[0160] like Figure 14 , Figure 19 and Figure 20 As shown, further, the actuator 22 has a push-fitting part 2211 on the side away from the seat unlocking mechanism 2. The second push-fitting member 234 has a third inclined surface 2341, which is inclined in the direction toward the seat locking mechanism 5 and toward the first unlocking member 21. The push-fitting part 2211 has a fourth inclined surface 22111 that fits and abuts against the third inclined surface 2341. The second unlocking member 23 slides along the set direction to push the actuator 22 to slide along the second axis 10b. The structure is simple and easy to implement.

[0161] The push-fit portion 2211 is a push-groove provided on the actuator 22, and the second push-member 234 is slidably disposed in the push-groove. A partial groove wall of the push-groove forms a fourth inclined surface 22111. By setting the push-fit portion 2211 as a push-groove, the second push-member 234 can be slidably disposed in the push-groove, preventing the second push-member 234 from disengaging from the push-fit portion 2211, and ensuring the stability and reliability of the fit between the second push-member 234 and the push-fit portion 2211. At the same time, the setting of the push-groove can reduce the size of the actuator 22 in the direction of the second axis 10b, and improve the structural compactness.

[0162] The fourth inclined surface 22111 preferably extends along the bottom of the groove of the pushing engagement portion 2211 to the opening of the groove of the pushing engagement portion 2211, ensuring that the second pushing member 234 can slide to partially exit the pushing engagement portion 2211. When the actuator 22 is in the first position, the second pushing member 234 is fully accommodated in the pushing groove.

[0163] In the embodiment, the second end of the second unlocking member 23 is located at the side of the actuating member 22 away from the seat pocket mounting base 4, i.e. the second end of the second unlocking member 23 extends into the space between the actuating member 22 and the seat body, so as to avoid the interference of the second unlocking member 23 with the sliding of the actuating member 22 towards the seat pocket mounting base 4 while achieving the pushing of the actuating member 22 by the second unlocking member 23.

[0164] In order to ensure that the actuating member 22 can reliably slide along the second axis 10b, in the embodiment, the seat body and / or the side cover plate 114 is provided with a protruding column portion 116, the axis of the protruding column portion 116 is coaxially arranged with the first rotation axis. The actuating member 22 is slidingly installed on the protruding column portion 116. The actuating member 22 comprises a ring body 221, one end of the ring body 221 is provided with the actuating portion 222, and the other end of the ring body 221 is provided with a pushing fitting portion 2211, and the ring body 221 is slidingly sleeved on the protruding column portion 116. Preferably, the seat body and the side cover plate 114 are fastened and connected by fasteners penetrating through the side cover plate 114 and the protruding column portion 116, so as to ensure the connection stability between the side cover plate 114 and the seat body, and at the same time, simplify the overall structure of the seat frame 11.

[0165] As shown in Figure 14 , Figure 19 and Figure 21 , further, the outer peripheral wall of the actuating member 22 is provided with a guide sliding groove 2212, and the seat frame 11 is provided with a guide protruding rib 1125, the guide sliding groove 2212 extends along the direction of the second axis 10b, and the guide protruding rib 1125 is slidingly arranged in the guide sliding groove 2212. The guide sliding groove 2212 is preferably spaced apart along the circumference of the actuating member 22. The cooperation of the guide sliding groove 2212 and the guide protruding rib 1125 can limit the rotation of the actuating member 22 relative to the seat frame 11.

[0166] The second unlocking member 23 comprises a first pushing member 231, a sliding rod portion 232 and a connecting plate portion 233 connected in sequence, the upper end of the first pushing member 231 is provided with a first inclined surface 2131, the connecting plate portion 233 is clamped between the second unlocking member 23 and the seat body, and the side of the connecting plate portion 233 facing the second unlocking member 23 is provided with a second pushing member 234.

[0167] Preferably, the width of the first pushing member 231 along the direction of the second axis 10b is greater than the width of the sliding rod portion 232 in the corresponding direction, so as to avoid the breakage of the second unlocking member 23 under the pushing action of the first unlocking member 21, and ensure the overall structural strength and rigidity of the second unlocking member 23.

[0168] The sliding rod part 232 is bently connected with the connecting plate part 233, and the connecting plate part 233 is farther away from the seat pocket mounting seat 4 than the sliding rod part 232, so that the connecting plate part 233 can be clamped between the second unlocking piece 23 and the seat body, while the sliding rod part 232 can be arranged directly above the second unlocking piece 23, so as to improve the layout rationality of the seat pocket unlocking mechanism 2 inside the seat pocket assembly 1, and reduce the overall size of the seat pocket unlocking mechanism 2. In the embodiment, the second unlocking piece 23 is provided with a avoiding recess 2213 on the side facing the first unlocking piece 21, and the lower end of the sliding rod part 232 is inserted into the avoiding recess 2213, so as to provide avoiding for the sliding of the second unlocking piece 23.

[0169] Preferably, a long circular sliding hole 2331 is formed on the connecting plate part 233, the length direction of the long circular sliding hole 2331 extends along the set direction, and the convex column part 116 is inserted into the long circular sliding hole 2331. This kind of arrangement makes the second unlocking piece 23 slideably arranged on the convex column part 116, and can ensure the smoothness and reliability of the sliding of the second unlocking piece 23 along the set direction. Further, a guide sliding hole for guiding the sliding of the sliding rod part 232 is formed between the side sealing plate 114 and the seat body, so as to ensure that the second unlocking piece 23 can only slide along the set direction.

[0170] In order to improve the actuating reliability of the second unlocking piece 23 to the actuating piece 22, in the embodiment, a plurality of second pushing parts 234 are arranged around the convex column part 116, and the pushing cooperation part 2211 is arranged one by one corresponding to the second pushing parts 234, so as to increase the acting position of the second unlocking piece 23 to the actuating piece 22, ensure the pushing reliability of the second unlocking piece 23 to the actuating piece 22, and also reduce the size of a single second pushing part 234.

[0171] As shown in Figures 12 to 14 In order to make the seat pocket unlocking mechanism 2 automatically return to the initial state from the actuating unlocking state, the seat pocket unlocking mechanism 2 comprises a first reset piece 24, a second reset piece 25 and / or a third reset piece. The first reset piece 24 is connected between the first unlocking piece 21 and the seat pocket assembly 1 and extends along the direction of the first axis 10a, and the first reset piece 24 always applies an elastic force to the first unlocking piece 21 to keep or return the seat pocket unlocking mechanism 2 to the initial state; the second reset piece 25 is connected between the actuating piece 22 and the seat frame 11 and extends along the direction of the second axis 10b, and the second reset piece 25 always applies an elastic force to the actuating piece 22 to keep or return the seat pocket unlocking mechanism 2 to the initial state; the third reset piece is connected between the seat frame 11 and the second unlocking piece 23 and extends along the set direction, and the third reset piece always applies an elastic force to the second unlocking piece 23 to keep or return the seat pocket unlocking mechanism 2 to the initial state.

[0172] Therefore, by setting the first reset member 24, the second reset member 25 and the third reset member, when the backrest frame 12 is rotated relative to the seat frame 11 to the unfolded state, the seat pocket unlocking mechanism 2 is reset to the separated position under the joint action of the first reset member 24, the second reset member 25 and the third reset member, without manual reset, improving the use reliability and use convenience of the seat pocket unlocking mechanism 2; at the same time, the reset member is arranged on the first unlocking member 21, the actuating member 22 and the second unlocking member 23 respectively, which can avoid the problem that any unlocking member running is stuck, causing the seat pocket unlocking mechanism 2 to be unable to reset smoothly, improving the reset reliability of the seat pocket unlocking mechanism 2. In other embodiments, the seat pocket unlocking mechanism 2 can also be provided with only one or two of the first reset member 24, the second reset member 25 and the third reset member.

[0173] Specifically, the first end of the first reset member 24 is in abutment with the first unlocking member 21, and the second end is connected with the seat frame 11, the first reset member 24 applies an elastic force to the first unlocking member 21 away from the seat frame 11; the first end of the second reset member 25 is in abutment with the actuating member 22, and the second end is in abutment with the seat frame 11, the second reset member 25 is used to apply an elastic force to the second unlocking frame away from the seat pocket mounting seat 4; the first end of the third reset member is in abutment with the second unlocking member 23, and the second end is in abutment with the seat frame 11, the third reset member always applies an elastic force to the second unlocking member 23 away from the actuating member 22.

[0174] Further, the first reset member 24 is sleeved on the seat back rotating shaft 115, and the second end is in abutment with the side sealing plate 114. The second end of the first unlocking member 21 is provided with a positioning groove, and the first end of the first reset member 24 is inserted into the positioning groove and in abutment with the groove bottom. The second reset member 25 is sleeved on the convex column part 116, and one end of the second reset member 25 is in abutment with the side sealing plate 114, and the actuating member 22 is provided with a containing groove 2214 facing the side sealing plate 114, and the other end of the second reset member 25 is inserted into the containing groove 2214.

[0175] In order to improve the setting convenience of the third reset member, the connecting plate part 233 away from the sliding rod part 232 is provided with a mounting column part 235, the lower end of the third reset member is in abutment with the seat body, and the upper end of the third reset member is sleeved on the mounting column part 235. It can be understood that the specific setting mode of the above-mentioned first reset member 24, the second reset member 25 and the third reset member is only an exemplary structure, and other mounting structures capable of realizing the first reset member 24, the second reset member 25 and / or the third reset member can also be applied to the utility model.

[0176] As Figure 22As shown in the figure, in the present embodiment, when the carrier is folded from the forward use state, first, the backrest locking member 14 is unlocked to enable the backrest frame 12 to rotate relative to the seat frame 11; the backrest frame 12 is pushed to rotate in the direction towards the seat frame 11 until the actuating portion 222 pushes the seat pocket locking mechanism 5 to the rotating unlocking position; the backrest frame 12 continues to rotate to enable the seat pocket assembly 1 and the seat pocket mounting seat 4 to rotate synchronously relative to the frame 3 to the folded state; and then the frame 3 is folded. The process of folding the carrier from the reverse unfolding use state is similar to the above process.

[0177] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle, characterized in that, include frame; The seat mounting base is rotatably mounted on the frame; A seat locking mechanism is provided on the frame and is used to lock the relative rotation between the seat mounting base and the frame; The seat assembly is detachably mounted and fixed to the seat mounting base; A seat unlocking mechanism is movably disposed on the seat assembly or the frame to drive the seat locking mechanism to unlock, so that the seat mounting base and the frame can rotate relative to each other.

2. The vehicle according to claim 1, characterized in that, The seat assembly includes a seat frame and a backrest frame, the backrest frame being rotatably mounted on the seat frame; when the backrest frame is folded towards the seat frame, the backrest frame drives the seat locking mechanism to unlock.

3. The vehicle according to claim 2, characterized in that, The seat unlocking mechanism has an actuator that cooperates with the backrest frame. The actuator has a first position and a second position relative to the seat assembly. When the actuator moves from the first position to the second position, the actuator moves to cooperate with the seat locking mechanism to drive the seat locking mechanism to unlock.

4. The vehicle according to claim 3, characterized in that, The actuator is movably disposed on the seat frame, and the seat unlocking mechanism also has a control component that cooperates with the actuator. The control component cooperates with the backrest frame and drives the actuator to move from the first position to the second position when the backrest frame moves towards the seat frame and folds.

5. The vehicle according to claim 4, characterized in that, The control component includes an actuating protrusion disposed on the backrest frame. The actuating protrusion rotates synchronously with the backrest frame and pushes the actuator toward the seat locking mechanism during rotation to unlock the locking mechanism. The outline of the actuating protrusion is generally curved and arranged around a first axis, which is the rotation axis of the backrest. The actuating protrusion has an actuating spiral surface on the side facing the actuator. The actuating spiral surface has an actuation start end and an actuation end end arranged opposite to each other. From the actuation start end to the actuation end end, the actuating spiral surface gradually moves away from the backrest. After the backrest is folded and closes towards the seat, the portion of the actuation spiral surface near the actuation end engages with the actuator. After the backrest and the seat are unfolded and separated, the portion of the actuation spiral surface near the actuation start engages with the actuator.

6. The vehicle according to claim 5, characterized in that, The control assembly further includes a transmission unit disposed between the actuating protrusion and the actuating member; the transmission unit cooperates with the actuating protrusion and the actuating member respectively; The transmission unit includes a first unlocking member, which is slidably mounted on the seat frame along the first axis. The first unlocking member has an unlocking engagement portion that abuts against the actuation helical surface. When the actuation protrusion rotates toward the seat frame with the backrest, the unlocking engagement portion slides relative to the actuation helical surface from the actuation start end to the actuation end end, so that the first unlocking member moves toward the actuator under the action of the actuation helical surface and drives the actuator. The unlocking engagement part is a groove disposed on the side of the first unlocking member facing the actuating protrusion. The actuating protrusion rotates within the groove and pushes the first unlocking member to move during the rotation. The actuating protrusions are provided in multiple ways, and the multiple actuating protrusions are arranged in a ring and arranged around the first axis. The transmission unit also has a second unlocking component, which cooperates with the first unlocking component and the actuator respectively.

7. The vehicle according to claim 6, characterized in that, The rotation axis of the backrest relative to the seat frame is the first axis, and the rotation axis of the seat pocket mounting base relative to the frame is the second axis. The first axis is parallel to and spaced apart from the rear side of the second axis. The second unlocking member is movably installed on the seat frame and has a first pushing member and a second pushing member respectively at both ends. The first pushing member abuts against the first unlocking member, and the second pushing member abuts against the actuating member. When the actuating protrusion rotates with the backrest towards the seat frame, the movement of the first unlocking member pushes against the first pushing member, so that the second pushing member pushes the actuating member to move in the direction toward the seat locking mechanism to drive the seat locking mechanism to unlock. The second unlocking member is slidably disposed on the seat frame. When the actuating protrusion rotates toward the seat frame with the backrest, the first unlocking member pushes the second unlocking member to slide in the direction toward the actuating member. The first unlocking member has a pressing portion that cooperates with the first pushing member. The pressing portion has a first inclined surface, and the first pushing member has a second inclined surface. In the direction away from the backrest, the first inclined surface is inclined in the direction away from the actuator, and the first inclined surface is in contact with the second inclined surface. The actuator is provided with a push-fitting part on the side away from the seat unlocking mechanism. The second push-fitting part has a third inclined surface in the direction toward the seat locking mechanism. The third inclined surface is inclined in the direction toward the first unlocking part. The push-fitting part has a fourth inclined surface that fits and abuts against the third inclined surface. The pushing engagement part is a pushing groove provided in the actuator, the second pushing component is slidably disposed in the pushing groove, and a part of the groove wall of the pushing groove forms the fourth inclined surface.

8. The vehicle according to claim 3, characterized in that, The actuator is disposed on the backrest frame and moves synchronously with the backrest frame. When the backrest frame moves toward the seat and folds, the actuator moves with the backrest frame to the position of unlocking the seat pocket locking mechanism.

9. The vehicle according to any one of claims 1-8, characterized in that, The seat mounting base is rotatably mounted on the inside of the frame; The frame includes a first support, a second support, and an armrest frame that are coaxially pivotally connected. The rotation axes of the second support and the first support are coaxial with the rotation axis of the seat mounting frame relative to the frame.

10. The vehicle according to any one of claims 4-8, characterized in that, The seat locking mechanism includes a seat locking member installed in the seat mounting base, and the seat locking member is slidably disposed between a seat unlock position and a seat locking position. When the actuator moves from the first position to the second position, it actuates the seat locking member to slide to the seat unlock position to unlock. The seat locking member has a mating component, which is inserted into the side of the seat mounting base facing the seat assembly when the seat locking member is in the seat unlock position. When the actuator moves toward the seat locking mechanism, it pushes the mating component to slide away from the seat assembly to unlock. The mating components are provided in at least two spaced intervals around the rotation axis of the seat mounting base; The actuator has a protruding actuating part on the side facing the seat locking mechanism. When the actuator moves from the first position to the second position, the actuating part extends out of the seat assembly to unlock the seat locking mechanism. The actuating part is a columnar structure, and the length direction of the columnar structure is parallel to the rotation axis of the seat mounting base.

Images