Rotation angle adjusting mechanism, fixing device and child carrier

Abstract

The utility model relates to a rotation angle adjusting mechanism, a fixing device and a child carrier. The rotation angle adjusting mechanism is used for the child carrier. The child carrier comprises a base and a seat assembly rotatably arranged on the base, and the rotation angle adjusting mechanism comprises a limiting piece arranged on the base; the pushing piece is arranged on the seat assembly and can rotate relative to the base along with the seat assembly; and the elastic reset piece is suitable for providing elastic restoring force for the pushing piece so that the pushing piece can abut against the limiting piece. When the seat assembly rotates to enable the pushing piece to be located in a specific angle range, the limiting piece drives the pushing piece to rotate towards the position in the preset direction, when the pushing piece is located in the preset direction, the limiting piece can be matched with the pushing piece to enable the pushing piece to be limited in the preset direction by the limiting piece, and therefore the seat assembly is limited in the preset use mode. The rotation angle adjusting mechanism can automatically adjust the rotation angle of the seat assembly, and therefore the situation that the rotation angle of the seat assembly is insufficient or excessive can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of infant products, and in particular to a rotation angle adjustment mechanism, a fixing device and a child carrier. Background Art

[0002] As people pay more and more attention to children's travel safety, child carriers have become an indispensable means of transportation for children when traveling. In order to be suitable for children of different ages or body shapes, child carriers need to have at least a forward use mode and a rearward use mode. In existing child carriers, when switching between different use modes, the seat needs to be fully rotated to the right position to lock the seat in that use mode (for example, when switching from the forward use mode to the rearward use mode, the seat needs to be rotated to the position opposite the rearward use mode to lock the seat in that use mode). When switching the use mode, existing child carriers have problems such as insufficient rotation angle or excessive rotation angle, which reduces the user's operating experience. In addition, existing child carriers also have problems with poor protection of the headrest and side wings.

[0003] In addition, the child carrier currently on the market generally includes a base and a seat mounted on the base, and a fixing device, such as an ISOFIX connector, is provided on the base. The child carrier is fixed to the car seat through the fixing device. However, the fixing device of the existing child carrier is not convenient when releasing the lock, and the release process is not smooth, and the problem of the locking of the engaging parts is easy to occur. In addition, the existing fixing device has a complex structure, resulting in a high cost and inconvenience in transportation. Utility Model Content

[0004] According to various embodiments of the present invention, a rotation angle adjustment mechanism, a fixing device and a child carrier are provided.

[0005] According to one aspect of the utility model, a rotation angle adjustment mechanism is provided for a child carrier, the child carrier comprising a base and a seat assembly rotatably disposed on the base, the rotation angle adjustment mechanism comprising a limiter and a pusher. The limiter is disposed on the base. The pusher is disposed on the seat assembly and can rotate relative to the base together with the seat assembly. When the seat assembly is rotated to make the pusher located within a specific angle range, the limiter drives the pusher to rotate to a position in a predetermined direction, and when the pusher is located in the predetermined direction, the limiter can cooperate with the pusher so that the pusher is restricted by the limiter in the predetermined direction, thereby restricting the seat assembly to a preset usage mode.

[0006] In one embodiment, the limiting member is provided with a limiting recess, and the pushing member has a clamping end, and when the pushing member is located in the predetermined direction, the clamping end is clamped with the limiting recess.

[0007] In one embodiment, the rotation angle adjustment mechanism further includes an elastic reset member, which is suitable for providing an elastic restoring force for the pushing member so that the pushing member pushes against the limiting member.

[0008] The limiting member is provided with a guiding surface, and the guiding surface limits the specific angle range.

[0009] The pushing member is movably arranged on the seat assembly and is provided with a pushing surface suitable for cooperating with the guide surface. When the seat assembly is rotated so that the pushing surface at least partially contacts the guide surface, the pushing member is rotated to the position in the predetermined direction and engages with the limiting recess through the cooperation between the pushing surface and the guide surface under the action of the elastic restoring force of the elastic reset member.

[0010] In one embodiment, the elastic return member is a compression spring.

[0011] In one embodiment, the number of the pushing members is two, and the two pushing members are symmetrically arranged on the seat assembly, and the two ends of the elastic return member are respectively in contact with the two pushing members.

[0012] In one embodiment, the base is provided with a plug-in hole, and the seat assembly includes a seat body and a fixed cover, the fixed cover is at least partially accommodated in the plug-in hole and is connected to the seat body, so that the seat body can rotate around the rotation axis relative to the base together with the fixed cover, and the pushing member is provided on the fixed cover.

[0013] In one of the embodiments, the fixed cover is provided with a sliding groove, the pushing member is disposed in the sliding groove and can slide along the sliding groove, and at least a portion of the pushing member can extend out of the sliding groove to engage with the limiting member.

[0014] In one of the embodiments, one of the fixed cover and the pushing member is provided with a travel groove, and the other of the fixed cover and the pushing member is provided with a limiting protrusion, and the limiting protrusion is inserted and cooperated with the travel groove to limit the moving travel of the pushing member.

[0015] In one of the embodiments, the rotation angle adjustment mechanism further includes a fastener, wherein the fastener at least partially passes through the travel slot and is connected to the limiting protrusion.

[0016] In one embodiment, the moving direction of the pushing member is perpendicular to the rotation axis of the seat assembly, and the pushing member or an extension line of the pushing member passes through the rotation axis.

[0017] In one embodiment, the limiting member further includes a gently sloping surface, which is connected to a side of the guide surface away from the limiting recess and smoothly transitions to the guide surface, and when the pushing member contacts the gently sloping surface, the elastic reset member is in an energy storage state.

[0018] In one embodiment, the distance between any point on the gentle slope surface and the rotation axis is smaller than the distance between the point on the limiting recess that is farthest from the rotation axis and the rotation axis.

[0019] In one of the embodiments, the limiting member is further provided with a lifting surface that enables the gentle slope surface to smoothly transition to the guiding surface, and two sides of the lifting surface are respectively connected to the gentle slope surface and the guiding surface.

[0020] In one of the embodiments, the limiting member is further provided with a driving surface, and the driving surface and the guiding surface are respectively provided on both sides of the limiting recess, so that the pushing member can exit the limiting recess along the driving surface.

[0021] In one embodiment, the driving surface and the guiding surface are symmetrically arranged on both sides of the limiting recess.

[0022] In one embodiment, the limiting member includes at least two limiting recesses, and the number of the limiting recesses is an integer multiple of the number of the pushing members.

[0023] According to another aspect of the present invention, a child carrier is provided, which includes a seat assembly, a base, and a rotation angle adjustment mechanism in any of the above embodiments.

[0024] In one embodiment, the seat assembly includes a seat body and a buffer body disposed on the seat body, the buffer body includes a plurality of buffer blocks, and a buffer gap is formed between two adjacent buffer blocks.

[0025] In one embodiment, the buffer gap includes a plurality of transverse gaps extending in a transverse direction and parallel to each other.

[0026] In one embodiment, the buffer gap includes a plurality of longitudinal gaps extending along the longitudinal direction and parallel to each other.

[0027] In one embodiment, the buffer gap includes a first inclined gap extending along a first inclined direction angled to both the transverse direction and the longitudinal direction, and a second inclined gap extending along a second inclined direction angled to both the transverse direction and the longitudinal direction, wherein the first inclined direction and the second inclined direction are staggered with each other.

[0028] In one embodiment, the buffer body further includes a connecting portion, and a plurality of the buffer blocks are connected together via the connecting portion.

[0029] In one embodiment, the seat body includes a headrest portion, and the headrest portion is provided with the buffer body.

[0030] In one embodiment, the seat body includes a headrest portion and side portions located at both sides of the headrest portion, and the side portions are provided with the buffer body.

[0031] In one embodiment, the child carrier further includes a rotating locking mechanism, which is disposed on the seat assembly. The base is provided with a locking hole, and the rotating locking mechanism can be engaged with the locking hole to lock the seat assembly into the preset usage mode.

[0032] In one embodiment, the base includes a base body and a fixing device. The fixing device includes: a connecting assembly connected to the base body; a snap mechanism including a snap member and a first reset member, the snap member is pivotally connected to the connecting assembly, the snap member is rotatable between an open position and a closed position, the snap member can be engaged with a latch rod on a car seat when in the closed position, the first reset member is arranged between the snap member and the connecting assembly, the first reset member is suitable for biasing the snap member to rotate toward the open position; and a locking mechanism is arranged on the connecting assembly, the locking mechanism can be switched between a locked state and a released state, the locking mechanism locks the snap member in the closed position when in the locked state, and releases the locking of the snap member in the closed position when in the released state.

[0033] In one embodiment, the locking mechanism comprises: a locking assembly, which is arranged on the connecting assembly and is movable between a first locking position and a first unlocking position, wherein the locking assembly can cooperate with a limiting portion of the engaging member to lock the engaging member in the closed position when the locking assembly is in the first locking position, and is released from the limiting portion when the locking assembly is in the first unlocking position; and a second reset member, which is arranged between the connecting assembly and the locking assembly. The locking assembly can be operated to move to the first unlocking position, and the second reset member is suitable for biasing the locking assembly to move toward the first locking position.

[0034] In one embodiment, the locking assembly includes: a driving member, which is provided in the connecting assembly and can be operated to move from the first unlocking position to the first locking position; and a limit pin, which is fixed to the driving member, and the limit pin can be abutted against the limit portion to lock the engaging member in the closed position.

[0035] In one embodiment, a rotation direction of the engaging member from the closed position to the open position is taken as a first direction, and when the engaging member is located at the closed position, the limiting pin abuts against one side of the limiting portion in the first direction.

[0036] In one of the embodiments, the rotation direction of the engaging member from the closed position to the open position is a first direction, the engaging member pivots relative to the connecting assembly with the pivot axis as the rotation center, the engaging member has an engaging groove for engaging with the engaging rod, the engaging groove and the limiting portion are both located at the edge of the engaging member, and the engaging groove is located in the first direction of the limiting portion.

[0037] In one embodiment, the fixing device also includes an indication component fixed on the driving member, the indication component includes at least a first indication mark for indicating that the locking mechanism is in a locked state and a second indication mark for indicating that the locking mechanism is in an unlocked state, and the connecting component is provided with a display window allowing the first indication mark or the second indication mark to be exposed.

[0038] In one embodiment, the driving member is provided with a first safety locking portion, and the connecting component is provided with a second safety locking portion, and the first safety locking portion and the second safety locking portion can detachably abut or engage with each other to prevent the driving member from moving to the first unlocking position.

[0039] In one embodiment, the connection assembly comprises: a connection housing having a snap-fit ​​opening, the snap-fitting member at least partially extending out of the snap-fit ​​opening to snap-fit ​​with a snap-fitting rod on a car seat; and a reinforcement member fixed in the connection housing. The snap-fitting member is pivotally connected to the reinforcement member, the first reset member is disposed between the reinforcement member and the snap-fitting member, and the locking mechanism at least partially extends out of the connection housing to be operated.

[0040] According to another aspect of the utility model, a fixing device for a child carrier is provided. The child carrier comprises a base and a seat assembly mounted on the base, wherein the base comprises a base body and the fixing device. The fixing device comprises: a connecting assembly connected to the base body; a clamping mechanism comprising a clamping member and a first reset member, wherein the clamping member is pivotally connected to the connecting assembly, wherein the clamping member is rotatable between an open position and a closed position, wherein the clamping member can be engaged with a clamping rod on a car seat when the clamping member is in the closed position, wherein the first reset member is arranged between the clamping member and the connecting assembly, wherein the first reset member is suitable for biasing the clamping member to rotate toward the open position; and a locking mechanism arranged on the connecting assembly, wherein the locking mechanism is switchable between a locking state and a unlocking state, wherein the locking mechanism locks the clamping member in the closed position when the locking mechanism is in the locking state, and releases the locking of the clamping member in the closed position when the locking mechanism is in the unlocking state.

[0041] In one embodiment, the locking mechanism comprises: a locking assembly, which is arranged on the connecting assembly and is movable between a first locking position and a first unlocking position, wherein the locking assembly can cooperate with a limiting portion of the engaging member to lock the engaging member in the closed position when the locking assembly is in the first locking position, and is released from the limiting portion when the locking assembly is in the first unlocking position; and a second reset member, which is arranged between the connecting assembly and the locking assembly. The locking assembly can be operated to move to the first unlocking position, and the second reset member is suitable for biasing the locking assembly to move toward the first locking position.

[0042] In one embodiment, the locking assembly includes: a driving member, which is provided in the connecting assembly and can be operated to move from the first unlocking position to the first locking position; and a limit pin, which is fixed to the driving member, and the limit pin can be abutted against the limit portion to lock the engaging member in the closed position.

[0043] In one embodiment, a rotation direction of the engaging member from the closed position to the open position is taken as a first direction, and when the engaging member is located at the closed position, the limiting pin abuts against one side of the limiting portion in the first direction.

[0044] In one of the embodiments, the rotation direction of the engaging member from the closed position to the open position is a first direction, the engaging member pivots relative to the connecting assembly with the pivot axis as the rotation center, the engaging member has an engaging groove for engaging with the engaging rod, the engaging groove and the limiting portion are both located at the edge of the engaging member, and the engaging groove is located in the first direction of the limiting portion.

[0045] In one embodiment, the first restoring member is a torsion spring, which is sleeved on the pivot shaft and has two movable ends respectively abutting against the engaging member and the connecting assembly.

[0046] In one embodiment, the fixing device also includes an indication component fixed on the driving member, the indication component includes at least a first indication mark for indicating that the locking mechanism is in a locked state and a second indication mark for indicating that the locking mechanism is in an unlocked state, and the connecting component is provided with a display window allowing the first indication mark or the second indication mark to be exposed.

[0047] In one embodiment, the driving member is provided with a first safety locking portion, and the connecting component is provided with a second safety locking portion, and the first safety locking portion and the second safety locking portion can detachably abut or engage with each other to prevent the driving member from moving to the first unlocking position.

[0048] In one embodiment, the locking mechanism further includes a third reset member, which is disposed between the driving member and the first safety locking portion, and is used to provide an elastic force for engaging or abutting the first safety locking portion with the second safety locking portion.

[0049] In one embodiment, the first safety locking portion is a safety pin slidably disposed on the driving member, and the second safety locking portion is a stop pin fixed to the connecting assembly.

[0050] In one embodiment, the third reset member is a torsion spring, and the two ends of the torsion spring are respectively a connecting end and a deformation end, the connecting end is connected to the safety pin, and the deformation end can be abutted against the driving member to provide an elastic force to make the first safety locking part and the second safety locking part engage or abut each other, and the part of the torsion spring located between the connecting end and the deformation end is fixed to the driving member.

[0051] In one embodiment, a sliding hole extending along the protruding direction of the resist pin is formed on the driving member, and the safety pin is slidably arranged in the sliding hole. The sliding hole has a first end and a second end. When the safety pin slides to the first end, it abuts against the side of the resist pin facing the engaging member, and when the safety pin slides to the second end, it disengages from the resist pin.

[0052] In one embodiment, the locking mechanism further includes: a safety release member, which is movably disposed on the connecting assembly, and the safety release member can be switched between a second locking position and a second release position, and the safety release member can be operated to move to the second release position and drive the safety pin to slide and disengage from the abutment of the blocking pin.

[0053] In one embodiment, the safety release member is slidably disposed on the connecting assembly and has an inclined surface or an arc surface that pushes the safety pin to slide.

[0054] In one embodiment, the locking mechanism further includes: a fourth restoring member, disposed between the safety release member and the connecting assembly, wherein the fourth restoring member is adapted to bias the safety release member to move toward the second locking position.

[0055] In one embodiment, one end of the safety release member extends out of the connecting assembly to be operated, and the other end of the safety release member is in a fork-shaped structure and has two fork legs, and the retaining pin is located between the two fork legs.

[0056] In one of the embodiments, the two fork legs are provided with inclined surfaces or arc-shaped surfaces for pushing the safety pin to slide.

[0057] In one embodiment, when the locking mechanism is in a locked state and the safety release member is not operated, there is an idle stroke between the driving member and the stop pin, and when the driving member is operated and moves within the idle stroke, the limit pin and the limit portion maintain abutment against each other, and the safety release member and the safety pin are spaced apart.

[0058] In one embodiment, the connection assembly comprises: a connection housing having a snap-fit ​​opening, the snap-fitting member at least partially extending out of the snap-fit ​​opening to snap-fit ​​with a snap-fitting rod on a car seat; and a reinforcement member fixed in the connection housing. The snap-fitting member is pivotally connected to the reinforcement member, the first reset member is disposed between the reinforcement member and the snap-fitting member, and the locking mechanism at least partially extends out of the connection housing to be operated.

[0059] According to another aspect of the present invention, a base of a child carrier is provided, the base comprising a base body and a fixing device as described in any of the above embodiments, wherein the fixing device is arranged on the base body.

[0060] According to another aspect of the present invention, a child carrier is provided. The child carrier comprises the base as described above and a seat assembly installed on the base.

[0061] The rotation angle adjustment mechanism and the child carrier including the same according to the utility model can automatically adjust the rotation angle of the seat assembly, thereby avoiding insufficient rotation angle or excessive rotation angle of the seat assembly, and improving the operational experience of adjusting the use mode of the seat assembly.

[0062] According to the utility model, the buffer body with the above structure can be deformed more easily, so that the buffering performance of the buffer body can be improved, thereby better protecting the child riding in the child carrier.

[0063] The fixing device of the child carrier according to the utility model is connected to the base body through its connecting assembly. A clamping mechanism and a locking mechanism are provided on the connecting assembly. The clamping member in the locking mechanism is pivotally connected to the connecting assembly and can rotate between an open position and a closed position. When the clamping member is in the closed position, it can be clamped with the clamping rod of the car seat, thereby realizing the connection between the base (or the child carrier) and the car seat. The first reset member is suitable for biasing the clamping member to move to the open position. The locking mechanism can switch between a locking state in which the clamping member is locked in the closed position and a release state in which the clamping member is unlocked. In this way, when the locking mechanism is in the release state, the clamping member will automatically switch to the open position under the action of the first reset member, so that the release is convenient and smooth, and the problem of the clamping member being locked is not likely to occur. The fixing device according to the utility model has a simple structure, is easy to manufacture, has a low cost and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic structural diagram showing a child carrier in a forward use mode according to some embodiments of the present invention.

[0065] Figure 2 A schematic structural diagram showing a child carrier in a rearward-facing use mode according to some embodiments of the present invention.

[0066] Figure 3 A cross-sectional view showing a child carrier according to some embodiments of the present invention in a forward-facing use mode.

[0067] Figure 4 Show Figure 3 A partial enlarged view of the frame A shows the engagement of the rotary engagement mechanism with the forward positioning hole of the base.

[0068] Figure 5 A view showing the engaging member of the rotary engaging mechanism in a retracted state.

[0069] Figure 6 A cross-sectional view showing a child carrier according to some embodiments of the present invention in a rearward-facing use mode.

[0070] Figure 7 Show Figure 6 A partial enlarged view of the area at frame B in the middle shows that the rotating engaging mechanism is engaged with the rearward positioning hole of the base.

[0071] Figure 8 A schematic structural diagram of a child carrier according to some embodiments of the present invention is shown, wherein the base is removed and the upper surface of the seat assembly is partially removed to illustrate the locking fixture of the rotating locking mechanism.

[0072] Fig. 9 Show Figure 8A partial enlargement of box C.

[0073] Fig.10 A structural schematic diagram of a child carrier and an enlarged diagram of its rotation angle adjustment mechanism according to some embodiments of the present invention are shown, wherein the base is partially removed and the seat assembly is in a forward use mode.

[0074] Fig.11 Show Fig.10 A schematic diagram of the structure of the child carrier when it is rotated to make the pushing member within a specific angle range and an enlarged diagram of the rotation angle adjustment mechanism thereof.

[0075] Fig.12 Show Fig.11 A structural schematic diagram of the child carrier when the child carrier is rotated to make the pusher in a predetermined direction and an enlarged diagram of the rotation angle adjustment mechanism thereof, at which time the seat assembly is in a left-facing use mode.

[0076] Fig.13 Show Fig.12 A schematic diagram of the structure of a child carrier when the child carrier is rotated to make the pushing member within a specific angle range and an enlarged diagram of the rotation angle adjustment mechanism thereof.

[0077] Fig.14 Show Fig.13 A structural schematic diagram of the child carrier in FIG. 1 when the child carrier is rotated to make the pusher in a predetermined direction and an enlarged diagram of the rotation angle adjustment mechanism thereof, at which time the seat assembly is in a rearward use mode.

[0078] Fig.15 Show Fig.10 Exploded view of the child carrier in the video.

[0079] Fig.16 An exploded view of a seat assembly and a rotation angle adjustment mechanism of a child carrier according to some embodiments of the present invention is shown.

[0080] Fig.17 An exploded view of a base of a child carrier according to some embodiments of the present invention is shown.

[0081] Fig.18 A schematic structural diagram of a child carrier according to some embodiments of the present invention is shown.

[0082] Fig.19 A schematic structural diagram of a headrest rear buffer body according to some embodiments of the utility model is shown.

[0083] Fig. 20 A schematic structural diagram of a headrest right side buffer body according to some embodiments of the utility model is shown.

[0084] Fig.21A schematic structural diagram of a left side buffer body of a headrest according to some embodiments of the utility model is shown.

[0085] Fig. 22 A schematic structural diagram of a right wing buffer body according to some embodiments of the utility model is shown.

[0086] Fig.23 A schematic structural diagram of a left wing buffer body according to some embodiments of the utility model is shown.

[0087] Fig.24 It is a structural schematic diagram of a base and an enlarged diagram of a fixing device thereof according to some embodiments of the utility model, wherein the telescopic rod is in a retracted state.

[0088] Fig.25 It is a structural schematic diagram of a base and an enlarged diagram of a fixing device thereof according to some embodiments of the utility model, wherein the telescopic rod is in an extended state.

[0089] Fig.26 for Fig.25 The longitudinal section view of the base and the enlarged view of its fixing device are shown, and the locking mechanism is in the locked state.

[0090] Fig. 27 for Fig.25 The longitudinal section view of the base and the enlarged view of its fixing device are shown, and the locking mechanism is in the unlocked state.

[0091] Fig.28 for Fig.26 A cross-sectional view of the fixing device in the base along line MM is shown.

[0092] Fig.29 for Fig. 27 A cross-sectional view of the fixing device in the base is shown along line NN.

[0093] Fig.30 for Fig.25 The shown schematic diagram is a structural diagram of the base at another angle, at which time the locking mechanism is in a locked state.

[0094] Fig.31 for Fig.30 The shown structure diagram of the base with the first shell hidden and the enlarged diagram of the fixing device.

[0095] Fig.32 for Fig.31 The shown structure diagram of the base with the first shell hidden from another viewing angle and an enlarged view of the fixing device.

[0096] Fig.33 for Fig.30 The shown structure diagram of the base after hiding the first shell and the reinforcement member and the enlarged diagram of the fixing device.

[0097] Fig.34 for Fig.33 The base shown is a structural schematic diagram from another perspective and an enlarged view of the fixing device after the first shell and the reinforcement are hidden.

[0098] Fig.35 for Fig.25 The shown schematic diagram is a structural diagram of the base at another angle, at which time the locking mechanism is in a released state.

[0099] Fig.36 for Fig.35 The shown structure diagram of the base without the first shell and the enlarged diagram of the fixing device.

[0100] Fig.37 for Fig.36 The shown structure diagram of the base with the first shell hidden from another viewing angle and an enlarged view of the fixing device.

[0101] Fig.38 for Fig.35 The shown structure diagram of the base after hiding the first shell and the reinforcement member and the enlarged diagram of the fixing device.

[0102] Fig.39 for Fig.38 The base shown is a structural schematic diagram from another perspective and an enlarged view of the fixing device after the first shell and the reinforcement are hidden.

[0103] Fig.40 for Fig.25 A partial exploded view of the fixture and telescopic rod in the base is shown.

[0104] Fig.41 for Fig.40 An enlarged view of the third reduction member in the fixing device is shown.

[0105] Description of Reference Numerals

[0106] 1. Child carrier, 100. Seat assembly,

[0107] 110. Rotating engagement mechanism,

[0108] 111. a locking member, 112. a pulling member, 1121. a first pulling member, 1122. a second pulling member, 113. a locking reset member, 114. a locking fixing member, 115. a screw, 116. a release operating member,

[0109] 120. Rotation angle adjustment mechanism,

[0110] 121. a stopper, 1211. a stopper recess, 12111. an arcuate surface of the stopper recess, 1212. a guide surface, 12121. a starting side, 1213. a driving surface, 1214. a gentle slope surface, 1215. a lifting surface,

[0111] 122, a push member, 1221, a clamping end, 1222, a connecting end, 1223, a connecting protrusion, 1224, a travel groove, 1225, a push surface,

[0112] 123. Elastic reset member, 124. Fastener,

[0113] 130, seat body, 131, headrest, 132, side,

[0114] 140, fixed cover, 143, sliding groove, 1431, opening end, 144, rib plate, 145, limiting protrusion,

[0115] 150, buffer body, 150a, buffer body at the rear side of the headrest, 150b, buffer body at the right side of the headrest, 150c, buffer body at the left side of the headrest, 150d, buffer body at the right wing, 150e, buffer body at the left wing, 151, buffer block, 152, connecting part, 153, back side, 154, front side, 155, buffer gap, 155a, lateral gap,

[0116] 200, base, 201, positioning hole, 2011, forward positioning hole, 2012, rearward positioning hole, 210, base upper cover, 211, plug hole, 220, base lower cover, 240, base body, 250, fixing device, 260, telescopic release button, 270, telescopic rod,

[0117] 1000, connecting component, 1100, connecting shell, 1110, first shell, 1111, first side, 1112, second side, 1113, first groove, 1120, second shell, 11210, display window, 11210a, first display window, 11210b, second display window, 11220, operation port, 11230, shielding member, 1200, reinforcement member, 1210, first reinforcement plate, 12110, first elongated groove, 1220, second reinforcement plate, 12210, second elongated groove, 1230, installation cavity, 1240, second groove, 125, locking port,

[0118] 2000, engaging mechanism, 2100, engaging member, 2110, engaging groove, 2120, limiting portion, 21210, second matching portion, 2200, first resetting member, 2210, movable end, 2220, first sleeve ring, 2300, pivot shaft,

[0119] 300, locking mechanism, 310, locking assembly, 311, driving member, 3112, first operating portion, 3113, mounting groove, 3113a, first groove wall, 3113b, second groove wall, 3113c, first mounting protrusion, 3114, sliding hole, 3114a, first end, 3114b, second end, 3115, card slot, 3111, first matching portion, 312, limit pin, 320, first Second reset member, 330, third reset member, 331, connecting end, 332, deformation end, 333, second ring, 340, safety release member, 341, release member body, 3411, second mounting protrusion, 342, second operating portion, 343, fork foot, 3431, inclined surface or arc surface, 350, fourth reset member, 361, positioning pin, 362, safety pin, 363, blocking pin, 364, mounting pin,

[0120] 400, indication component, 410, first indication mark, 420, second indication mark,

[0121] Dp1, first predetermined direction, Dp2, second predetermined direction, Dp3, third predetermined direction, Dp4, fourth predetermined direction, D1, first direction, D2, second direction, S, rotation axis, F, thrust, F1, first component force, F2, second component force, D3, third direction, L, idle stroke, D4, fourth direction, D5, fifth direction. DETAILED DESCRIPTION

[0122] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0123] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0124] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0125] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0126] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0127] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0128] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0129] Figure 1 and Figure 2The schematic diagrams respectively show the structures of the child carrier 1 in different usage modes.

[0130] Some embodiments of the present invention provide a child carrier. The child carrier may be, for example, a child safety seat, an infant stroller, etc. The following description will be made by taking the child carrier as a child safety seat as an example.

[0131] like Figure 1 to Figure 2 As shown, the child carrier 1 includes a seat assembly 100 and a base 200. The seat assembly 100 is disposed on the base 200 and can rotate relative to the base 200. The seat assembly 100 of the child carrier 1 has four usage modes: a forward usage mode (such as Figure 1 ), that is, arranged in the direction toward which the child carrier 1 moves; a rearward use mode (as shown Figure 2 The child carrier 1 has two use modes: a forward use mode (shown in the drawings), that is, it is arranged in the opposite direction of the forward direction of the child carrier 1; a left-hand use mode (not shown in the drawings), that is, it is arranged toward the left side of the forward direction of the child carrier 1; and a right-hand use mode (not shown in the drawings), that is, it is arranged toward the right side of the forward direction of the child carrier 1. Taking a child safety seat as an example, the forward use mode and the rearward use mode can be used during the forward movement of the vehicle, and the left-hand use mode and the right-hand use mode are used when the vehicle is parked, so as to facilitate children to get on and off the child carrier 1, but the present invention is not limited to this. In some other embodiments, the child carrier may have only a forward use mode and a rearward use mode. The child carrier 1 of the present invention switches between different use modes by rotating its seat assembly 100 relative to the base 200.

[0132] Figures 3 to 5 The rotating engaging mechanism of the child carrier 1 is shown when the child carrier 1 is in the forward use mode. Figure 6 and Figure 7 The rotating locking mechanism of the child carrier 1 is shown when the child carrier 1 is in the rear-facing use mode, and Figures 8 to 10 The locking fixture of the rotating locking mechanism and its internal structure are shown respectively.

[0133] In some embodiments, Figures 3 to 7As shown, the child carrier 1 of the utility model includes a rotating engaging mechanism 110, which is arranged on the seat assembly 100, and the rotating engaging mechanism 110 can be engaged and fixed to the corresponding positioning hole 201 arranged on the base 200. The positioning hole 201 at least includes a forward positioning hole 2011 and a rearward positioning hole 2012, so that the seat assembly can be locked in at least a forward use mode and a rearward use mode. When the seat assembly 100 is in the forward use mode, the rotating engaging mechanism 110 engages with the forward positioning hole 2011; and when the seat assembly 100 is in the rearward use mode, the rotating engaging mechanism 110 engages with the rearward positioning hole 2012. In some other embodiments, other positioning holes 201 can also be arranged on the base 200, for example, a left positioning hole (not shown in the drawings) and a right positioning hole (not shown in the drawings), so that the seat assembly 100 can be locked in other use modes.

[0134] like Figure 4 As shown, the rotary engagement mechanism 110 includes a release operating member 116 (see Fig.10 ), the engaging member 111, the pulling member 112 and the engaging fixing member 114. The engaging fixing member 114 is fixedly arranged in the seat assembly 100. Fig. 9 The snap-fitting member 114 can be fixed on the seat assembly 100 by screws 115 located on both sides of the snap-fitting member 114 so as to rotate with the seat assembly 100 relative to the base 200. One end of the snap-fitting member 114 is open, and the snap-fitting member 111 is disposed in the snap-fitting member 114 and can slide in the snap-fitting member 114, so that one end of the snap-fitting member 111 can extend from the open end of the snap-fitting member 114, thereby snapping with the forward positioning hole 2011 or the rearward positioning hole 2012.

[0135] like Figure 4 As shown, one end of the pulling member 112 is connected to the other end of the engaging member 111, and the other end of the pulling member 112 is connected to the unlocking operating member 116 (refer to Fig.10 ). For example, the traction member 112 may be a steel wire, and the release operating member 116 may be a release button, but the present invention is not limited thereto. Fig.10, a release operating member 116 may be provided on both sides of the child carrier 1 (for example, the left side and the right side of the child carrier 1), and the traction member 112 of the rotating engaging mechanism 110 may include a first traction member 1121 and a second traction member 1122. One end of the first traction member 1121 and the second traction member 1122 are respectively connected to the corresponding release operating member 116, and the other ends of the first traction member 1121 and the second traction member 1122 are connected to the engaging member 111, so that when any of the release operating members 116 on both sides of the child carrier 1 is operated, the engaging member 111 can be driven to achieve synchronous adjustment. In other embodiments, a release operating member 116 may also be provided only on one side of the child carrier 1 (for example, the left side or the right side of the child carrier 1), and the present invention is not limited to this.

[0136] In addition, if Figure 4 , Figure 7 and Fig. 9 As shown, the rotating locking mechanism 110 may further include a locking reset member 113, which is disposed between the locking fixing member 114 and the locking member 111, and constantly provides a force to drive one end of the locking member 111 to extend out of the locking fixing member 114, so that when the seat body 100 is rotated to a position (i.e., rotated to a position for forward use or backward use) and the locking operating member 116 (refer to Fig.10 ) is not operated, the engaging member 111 is always inserted into the positioning hole 201 to achieve engagement. The engaging reset member 113 is, for example, a compression spring, but the present invention is not limited thereto.

[0137] Through the above structure, refer to Figure 4 When the child carrier 1 is in the forward use mode, one end of the engaging member 111 is kept extending from the engaging fixing member 114 under the action of the engaging reset member 113, and then extends from the shell of the seat body 130 to engage with the forward positioning hole 2011 of the base 200, so that the seat assembly 100 is locked relative to the base 200 and no longer rotates; when the child carrier 1 needs to be switched from the forward use mode to the rearward use mode, the traction member 112 is driven by operating the release operating member 116, and then the protruding end of the engaging member 111 is retracted into the engaging fixing member 114 by the pulling force of the traction member 112 (refer to Figure 5 ), thereby allowing the seat assembly 100 to rotate relative to the base 200 to other use modes, such as the rearward use mode. During the rotation process, due to the restriction of the inner shell of the base 200 on the engaging member 111, the engaging member 111 always remains in a retracted state until it reaches the position of the rearward positioning hole 2012 according to the rotation of the seat assembly 100, and extends out of the engaging fixing member 114 again under the action of the engaging restoring member 113 to engage with the rearward positioning hole 2012, thereby locking the seat assembly 100 in the rearward use mode.

[0138] Figures 10 to 14 A schematic structural diagram showing a child carrier 1 and its rotation angle adjustment mechanism during adjustment from a forward use mode to a rearward use mode; Fig.15 An exploded view of the child carrier 1 and an enlarged view of its rotation angle adjustment mechanism are shown; Fig.16 An exploded view showing the seat assembly 100 and an enlarged view of its rotation angle adjustment mechanism; and Fig.17 An exploded view of the base 200 and an enlarged view of the stopper 121 are shown.

[0139] In some embodiments, Figures 10 to 14 As shown, the child carrier 1 further includes a rotation angle adjustment mechanism 120. The rotation angle adjustment mechanism 120 includes a stopper 121, a pusher 122, and an elastic reset member 123. The stopper 121 is disposed on the base 200. The pusher 122 is disposed on the seat assembly 100 (e.g., the fixed cover 140 of the seat assembly 100) and can rotate relative to the base 200 together with the seat assembly 100. Fig.11 and Fig.13 When the seat assembly 100 is rotated to make the pushing member 122 within a specific angle range, the limiting member 121 drives the pushing member 122 to rotate to a position in a predetermined direction. When the pushing member 122 is located in the predetermined direction, the limiting member 121 can cooperate with the pushing member 122 to limit the pushing member 122 in the predetermined direction, so that the seat assembly 100 is limited to a preset usage mode (for example, a forward usage mode, a rearward usage mode, a left usage mode or a right usage mode). The specific angle range can be limited by the limiting member 121. The predetermined direction, for example, includes a first predetermined direction Dp1 corresponding to the forward usage mode, a second predetermined direction Dp2 corresponding to the left usage mode, a third predetermined direction Dp3 corresponding to the rearward usage mode, and a fourth predetermined direction Dp4 corresponding to the right usage mode, but the present invention is not limited thereto. The first predetermined direction and the third predetermined direction are parallel to each other, and the second predetermined direction and the fourth predetermined direction are parallel to each other. Reference Fig.12 and Fig.14 When the pushing member 122 is located in a predetermined direction (Dp2 or Dp3), the pushing member 122 can be restricted in the predetermined direction (Dp2 or Dp3) by the limiting member 121.

[0140] In one embodiment, the seat assembly 100 can be locked in at least a part of the predetermined direction relative to the base 200. For example, when the pusher 122 is in the first predetermined direction or the third predetermined direction (i.e., the seat assembly 100 is in the forward use mode or the rearward use mode), the engaging member 111 of the rotating engaging mechanism 110 can engage with the corresponding positioning hole (or referred to as the engaging hole 201) on the base 200, so that the seat assembly 100 is locked at the rotation angle corresponding to the forward or rearward use mode, thereby locking the seat assembly 100 in the forward use mode or the rearward use mode. At this time, it is necessary to operate the release operating member 116 of the rotating engaging mechanism 110 to make the engaging member 111 withdraw from the corresponding positioning hole 201, and apply an external force to the pusher 122 (or the seat assembly 100), so that the pusher 122 drives the seat assembly 100 to rotate relative to the base 200. In this way, the seat assembly 100 can be prevented from rotating unexpectedly during the travel of the vehicle or the child carrier 1. When the pusher 122 is in the second predetermined direction or the fourth predetermined direction (that is, when the seat assembly 100 is in the left-hand or right-hand use mode), the engaging member 111 of the rotating engaging mechanism 110 may be engaged with the corresponding positioning hole 201, or may not be engaged with the positioning hole 201, and the present invention does not limit this. In this embodiment, when the pusher 122 is in the predetermined direction (Dp1, Dp2, Dp3 or Dp4), when the engaging member 111 is not engaged with the positioning hole 201, the limiting member 121 can still limit the pusher 122 in the predetermined direction (Dp1, Dp2, Dp3 or Dp4), and at this time, an external force that can rotate the pusher 122 (or the seat assembly 100) is applied to the pusher 122 (or the seat assembly 100), so that the pusher 122 and the seat assembly 100 can rotate relative to the base 200.

[0141] In some embodiments, Figures 10 to 14 As shown, combined with reference Fig.17The base 200 includes a base upper cover 210 and a base lower cover 220 detachably connected to the base upper cover 210. The base 200 is provided with a plug hole 211. The plug hole 211 is provided through the base upper cover 210 and extends in the direction where the rotation axis S is located. At least a portion of the seat assembly 100 is plugged into the plug hole 211 and can rotate around the rotation axis S. In this embodiment, the seat assembly 100 includes a seat body 130 and a fixed cover 140. The seat body 130 is rotatably connected to the base 200. The fixed cover 140 is detachably connected to the seat body 130, and the fixed cover 140 is at least partially accommodated in the plug hole 211, so that the seat body 130 can drive the fixed cover 140 to rotate relative to the base 200 around the rotation axis S. The cross section of the fixed cover 140 is roughly circular. The pusher 122 is disposed on the fixed cover 140, so that when the seat body 130 rotates, the pusher 122 can be driven to rotate relative to the base 200 through the fixed cover 140. In this embodiment, the fixed cover 140 disposed on the seat body 130 can drive the pusher 122 to rotate when the seat body 130 rotates, and can provide a platform for the pusher 122 to move in the radial direction of the circumferential plane perpendicular to the rotation axis S. In other embodiments, the fixed cover 140 can also be a component fixed to the seat body 130, and the present invention does not limit this. Figures 10 to 14 The pusher 122 is movably disposed on the fixed cover 140 of the seat assembly 100, and can extend out of the fixed cover 140 to engage with the stopper 121. The fixed cover 140 is provided with a sliding groove 143, and both ends of the sliding groove 143 are open ends 1431, so that the pusher 122 can at least partially pass through the corresponding open ends 1431 and extend out of the sliding groove 143. The sliding groove 143 can be formed by two ribs 144 that are provided on the fixed cover 140 and are parallel to each other, but the utility model is not limited thereto. The pusher 122 is disposed in the sliding groove 143 and can slide along the sliding groove 143. The extending direction of the sliding groove 143 is the first direction D1, and the moving direction of the pusher 122 is parallel to the first direction D1. In one embodiment, the sliding groove 143 is located in the radial direction of the circumferential plane perpendicular to the rotation axis S. That is, the plane in which the moving direction of the pusher 122 lies is perpendicular to the rotation axis S of the seat assembly 100 , and the pusher 122 or an extension line of the pusher 122 passes through the rotation axis S.

[0142] In one embodiment, one end of the push member 122 is a snap-fit ​​end 1221, and the snap-fit ​​end 1221 can pass through the corresponding opening end 1431 and extend out of the sliding slot 143 to snap-fit ​​with the stop member 121. Fig.15, the fixed cover 140 is provided with a limiting protrusion 145, and the push member 122 is provided with a travel groove 1224, and the limiting protrusion 145 is inserted and matched with the travel groove 1224 to limit the moving stroke of the push member 122. Among them, the push member 122 is connected to the fixed cover 140 through the fastener 124 to prevent the push member 122 from being separated from the fixed cover 140. Specifically, the fastener 124 is, for example, a screw, and the fastener 124 at least partially passes through the travel groove 1224 and is threadedly connected with the limiting protrusion 145, so that the push member 122 is connected to the fixed cover 140 and can move relative to the fixed cover 140. In other embodiments, the travel groove 143 may be provided on the fixed cover 140, and the limiting protrusion 145 may be provided on the push member 122.

[0143] In some embodiments, Figures 10 to 14 As shown, the elastic return member 123 is suitable for providing an elastic restoring force for the pushing member 122, so that the pushing member 122 constantly moves in the direction of the limiting member 121. The elastic return member 123 is, for example, a compression spring, but the present invention is not limited thereto. The elastic return member 123 is at least partially accommodated in the sliding groove 143. With the end of the pushing member 122 away from the engaging end 1221 as the connecting end 1222, the elastic return member 123 abuts against the connecting end 1222 of the pushing member 122 so that the engaging end 1221 of the pushing member 122 can extend out of the opening end 1431 of the sliding groove 143 and abut against the limiting member 121. In the present embodiment, the number of the pushing members 122 is two, and the two pushing members 122 are symmetrically arranged on the fixed cover 140 of the seat assembly 100, but the present invention is not limited thereto. For example, in other embodiments not shown, the number of the pushing members 122 may be, for example, one or more than two. Referring to Figures 10 to 14, the number of elastic reset member 123 is one, and the two ends of the elastic reset member 123 are respectively in contact with the two pushers 122, so that the two pushers 122 move in opposite directions at the same time and respectively contact with the limiter 121. Among them, the connection end 1222 of each pusher 122 is provided with a connection convex portion 1223, one end of the elastic reset member 123 is sleeved on the connection convex portion 1223 of one of the pushers 122, and the other end of the elastic reset member 123 is sleeved on the connection convex portion 1223 of another pusher 122, so as to avoid the elastic reset member 123 from deflecting during the compression process (i.e., during the energy storage process of the elastic reset member 123). In other embodiments not shown, the number of elastic reset members 123 can be greater than one, one end of each elastic reset member 123 is in contact with the corresponding connection end 1222 of the pusher 122, and the other end of each elastic reset member 123 is connected to a protrusion (not shown in the drawings) on the fixed cover 140. The utility model does not limit the number of pushers 122, the number of elastic reset members 123, and the specific arrangement. In some other embodiments not shown, the elastic reset member 123 may not be provided. For example, the pusher 122 and the limiter 121 may cooperate with each other by magnetic attraction, so that when the pusher 122 rotates to a specific angle range, the pusher 122 can be automatically rotated to a predetermined direction.

[0144] In some embodiments, Figures 10 to 14 As shown, the stopper 121 is a closed ring structure. The stopper 121 is disposed on the base cover 210. Specifically, (refer to Fig.17 ) The limiter is located on the side of the base upper cover 210 facing the base lower cover 220. The projection of the plug-in hole 211 (or the fixed cover 140) on the plane perpendicular to the rotation axis S is located within the projection of the limiter 121 on the plane perpendicular to the rotation axis S. In other words, the projection of the limiter 121 on the plane perpendicular to the rotation axis S surrounds the projection of the plug-in hole 211 (or the fixed cover 140) on the plane perpendicular to the rotation axis S. It should be noted that the annular structure in this embodiment should be understood in a broad sense. It does not only refer to a circular ring, but should be understood as any closed structure connected end to end, such as a rectangular ring, a polygonal ring, etc. In this embodiment, the limiter 121 is roughly a rectangular ring. The pusher 122 is suitable for being accommodated in the limiter 121 to abut against the limiter 121.

[0145] In one embodiment, Figures 10 to 14As shown, the limiting member 121 is provided with a limiting recess 1211 and a guide surface 1212, and the limiting recess 1211 defines a predetermined direction. When the pushing member 122 is located in the predetermined direction, the engaging end 1221 of the pushing member 122 can engage with the limiting recess 1211, so that the pushing member 122 is limited in the predetermined direction. The limiting recess 1211 has an arc surface 12111 protruding away from the rotation axis S, and the engaging end 1221 of the pushing member 122 is provided with an arc segment that cooperates with the limiting recess 1211, so that the engaging end 1221 can not only engage with the limiting recess 1211, but also withdraw from the limiting recess 1211 under the action of an external force.

[0146] In this embodiment, the stopper 121 is a rotationally symmetrical structure and an axisymmetric structure. The stopper 121 includes at least two stopper recesses 1211, and the number of the stopper recesses 1211 is an integer multiple of the number of the pushers 122. Figures 10 to 14 As shown, the number of the pushers 122 is two, the number of the limiting recesses 1211 is four, and the four limiting recesses 1211 are symmetrically distributed about the rotation axis S, but the utility model is not limited thereto. The angle between two adjacent limiting recesses 1211 is approximately 90°. The four limiting recesses 1211 correspond to the forward use mode, the left use mode, the rearward use mode and the right use mode of the child carrier 1, respectively, and the rotation angles of each use mode differ by approximately 90°. In other embodiments not shown, the number of limiting recesses 1211 can be, for example, one, two, three, or more than four. Through the cooperation of the limiting recesses 1211 and the pusher 122, the limiting member 121 can at least limit the pusher 122 to the forward use mode and the rearward use mode. Those skilled in the art can adjust the number of limiting recesses 1211 and the pusher 122 according to actual use requirements.

[0147] like Figures 10 to 14 As shown, at least one side of the limiting recess 1211 is provided with a guide surface 1212, and the guide surface 1212 can be an inclined surface or an arc-shaped surface and smoothly transition to the limiting recess 1211. The guide surface 1212 can limit a specific angle range of the seat assembly 100. Specifically, the specific angle range refers to the rotatable angle range of the pushing member 122 when the seat assembly 100 is rotated to make the pushing member 122 abut against the guide surface 1212 of the limiting member 121. The engaging end 1221 of the pushing member 122 is provided with a pushing surface 1225 suitable for cooperating with the guide surface 1212, and the pushing surface 1225 is provided on at least one side of the arc segment. In this embodiment, the pushing surfaces 1225 are respectively provided on both sides of the arc segment. Referring to Fig.11 and Fig.13When the seat assembly 100 rotates to make the push surface 1225 at least partially contact the guide surface 1212, the push member 122 is rotated to a position in a predetermined direction and engaged with the limiting recess 1211 through the cooperation between the push surface 1225 and the guide surface 1212 under the elastic restoring force of the elastic reset member 123 (refer to Fig.12 and Fig.14 ). The distance between any point on the arc surface 12111 of the limiting recess 1211 and the rotation axis S is greater than or equal to the distance between any point on the guide surface 1212 and the rotation axis S, and the distance between the point on the arc surface 12111 of the limiting recess 1211 that is farthest from the rotation axis S (i.e., the valley) and the rotation axis S is greater than the distance between any point on the guide surface 1212 and the rotation axis S. With such an arrangement, when the pushing member 122 changes from a position abutting against the guide surface 1212 to a position engaging with the limiting recess 1211, the elastic reset member 123 at least partially releases the stored elastic potential energy, so that the elastic potential energy released by the elastic reset member 123 can be used to push the pushing member to move in the direction of the limiting recess 1211. Specifically, referring to Fig.11 and Fig.13 When the engaging end 1221 of the push member 122 begins to abut against the guide surface 1212 (i.e., when the push member 122 contacts the starting side 12121 of the guide surface 1212), the elastic reset member 123 is compressed, so that the elastic reset member 123 is in an elastic energy storage state, and the elastic reset member 123 generates an elastic restoring force along the first direction D1 on the push member 122, so that the guide surface 1212 generates a thrust force F perpendicular to the direction of the guide surface 1212 on the push member 122. The thrust force F can be decomposed into a first force component F1 parallel to the first direction D1 and a second force component F2 parallel to the second direction D2. Among them, the first direction D1 and the second direction D2 are perpendicular to each other, and the first force component F1 can interact with the elastic restoring force to enable the push member 122 to move along the first direction D1, and the second force component F2 can enable the push member 122 to automatically rotate to a position in a predetermined direction. During the rotation of the push member 122 to the position in the predetermined direction, the elastic potential energy stored in the elastic reset member 123 is slowly released, and the engaging end 1221 of the push member 122 moves along the guide surface 1212 to the position engaged with the limiting recess 1211. When the engaging end 1221 of the push member 122 is engaged with the limiting recess 1211, the push member 122 is restricted in the predetermined direction.

[0148] In some embodiments, Figures 10 to 14As shown, the limiting member 121 also includes a driving surface 1213, and the driving surface 1213 and the guiding surface 1212 are respectively arranged on both sides of the limiting recess 1211, so that the pushing member 122 can exit the limiting recess 1211 along the driving surface 1213. The driving surface 1213 can be an inclined surface or an arc surface, and smoothly transitions to the limiting recess 1211. Among them, the driving surface 1213 and the guiding surface 1212 are symmetrically arranged on both sides of the limiting recess 1211, that is, the two ends of the arc surface 12111 of the limiting recess 1211 are respectively connected to the driving surface 1213 and the guiding surface 1212. In this embodiment, the structures of the driving surface 1213 and the guiding surface 1212 are exactly the same (that is, it can be considered that both sides of the limiting recess 1211 are provided with the guiding surface 1212, or both sides of the limiting recess 1211 are provided with the driving surface 1213). But the utility model is not limited to this. Such arrangement enables the seat assembly 100 to automatically rotate in a clockwise direction relative to the base 200 or in a counterclockwise direction relative to the base 200 when the seat assembly 100 is located within a specific angle range.

[0149] In one embodiment, Figures 10 to 14 As shown, the limiting member 121 is also provided with a gentle slope surface 1214, which is connected to the side of the guide surface 1212 away from the limiting recess 1211, that is, the gentle slope surface 1214 is connected to the starting side 12121 of the guide surface 1212. The gentle slope surface 1214 smoothly transitions to the guide surface 1212. The gentle slope surface 1214 is, for example, an arcuate surface protruding away from the rotation axis S. The distance between any point on the gentle slope surface 1214 and the rotation axis S is less than the distance between the point farthest from the rotation axis S on the arcuate surface 12111 of the limiting recess 1211 (i.e., the valley of the limiting recess 1211) and the rotation axis S. The engaging end 1221 of the pusher 122 can abut against the gentle slope surface 1214 and compress the elastic reset member 123, so that the elastic reset member 123 is in an elastic energy storage state. In this embodiment, there are two gentle slope surfaces 1214 , and the two gentle slope surfaces 1214 are symmetrically distributed on both sides of the limiting recess 1211 , but the present invention is not limited thereto.

[0150] In some embodiments, Figures 10 to 14 As shown, the stopper 121 is further provided with a lifting surface 1215 that allows the gentle slope surface 1214 to smoothly transition to the guide surface 1212, and the two sides of the lifting surface 1215 are respectively connected to the gentle slope surface 1214 and the guide surface 1212. By providing the lifting surface 1215 between the gentle slope surface 1214 and the guide surface 1212, the inclination angle of the guide surface 1212 can be increased, and the second component force F2 of the guide surface 1212 parallel to the second direction L2 can be increased, so that the seat assembly 100 can be more easily automatically rotated relative to the base 200.

[0151] Through the above structure setting, refer to Figure 3 , Figure 4 as well as Fig.10 When the seat assembly 100 of the child carrier 1 is in the forward use mode, the push member 122 is in the first predetermined direction Dp1, and the engaging member 111 of the rotating engaging mechanism 110 engages with the forward positioning hole 2011. The caregiver operates the release operating member 116 of the rotating engaging mechanism 110 to make the engaging member 111 withdraw from the forward positioning hole 2011 (refer to Figure 5 ), the caregiver applies external force to the seat assembly 100 (or the pusher 122) to make the pusher 122 rotate in the clockwise direction and exit the limiting recess 1211 along the push surface 1213. Fig.11 When the seat assembly 100 (or the pusher 122) rotates in a clockwise direction under the action of an external force until the pusher 122 is within a specific angle range (i.e., when the push surface 1225 of the pusher 122 abuts against the guide surface 1212), under the action of the elastic restoring force of the elastic reset member 123, the pusher 122 pushes against the guide surface 1212, so that the guide surface 1212 generates a thrust F perpendicular to the direction of the guide surface 1212 on the pusher 122. The thrust F can be decomposed into a first force component F1 along the first direction D1 and a second force component F2 perpendicular to the first direction D1. The first force component F1 can interact with the elastic restoring force, so that the pusher 122 can move along the first direction D1 relative to the fixed cover 140, and the second force component F2 causes the pusher 122 to rotate to a position in a predetermined direction Dp2, so that the pusher 122 can automatically move along the guide surface 1212 toward the direction of the limiting recess 1211. Refer to Fig.12 When the engaging end 1221 of the pushing member 122 engages with the limiting recess 1211, the pushing member 122 is in the second predetermined direction Dp2, and the seat assembly 100 is in the left-hand use mode. At this time, the pushing member 122 is restricted by the limiting member 121 in the second predetermined direction (that is, the seat assembly 100 is restricted in the right-hand use mode).

[0152] In the process of adjusting the seat assembly 100 from the forward use mode to the left use mode, when the seat assembly 100 is rotated to make the pusher 122 in a specific angle range, the pusher 122 can be further automatically rotated to a predetermined direction through the cooperation between the pusher 122 and the limiter 121 in the rotation angle adjustment mechanism 120, thereby adjusting the seat assembly 100 from the forward use mode to the left use mode. In this process, it is not necessary to accurately rotate the seat assembly 100 to make the pusher 122 in the predetermined direction, thereby improving the operating experience of adjusting the use mode of the seat assembly.

[0153] When the seat assembly 100 needs to be further adjusted from the left-facing mode to the rear-facing mode, the caregiver applies an external force to the seat assembly 100 (or the pusher 122) to rotate the pusher 122 in a clockwise direction and exit the limiting recess 1211 along the push surface 1213. Fig.13 When the seat assembly 100 (or the pusher 122) rotates clockwise under the action of an external force until the pusher 122 is within a specific angle range (i.e., when the push surface 1225 of the pusher 122 abuts against the guide surface 1212), under the action of the elastic restoring force of the elastic reset member 123, the pusher 122 pushes against the guide surface 1212, so that the guide surface 1212 generates a thrust F perpendicular to the direction of the guide surface 1212 on the pusher 122. The thrust F can be decomposed into a first force component F1 along the first direction D1 and a second force component F2 perpendicular to the first direction D1. The first force component F1 can interact with the elastic restoring force, so that the pusher 122 can move relative to the fixed cover 140 along the first direction D1, and the second force component F2 causes the pusher 122 to rotate to a position in a predetermined direction Dp3. Refer to Fig.14 When the pushing member 122 can automatically move to the limiting recess 1211 along the guiding surface 1212, the pushing member 122 is in the third predetermined direction Dp3, and the seat assembly 100 is in the rearward use mode. At this time, the pushing member 122 is limited by the limiting member 121 in the third predetermined direction (that is, the seat assembly 100 is limited in the rearward use mode).

[0154] According to the rotation angle adjustment mechanism of the utility model and the child carrier including the same, the rotation angle of the seat assembly can be automatically adjusted, thereby avoiding the seat assembly from rotating at an insufficient angle or rotating at an excessive angle. In other words, according to the child carrier and the rotation angle adjustment mechanism of the embodiment of the utility model, during the process of adjusting the use mode of the seat assembly, it is only necessary to rotate the seat assembly until the pusher is within a specific angle range, and then the pusher can be further automatically rotated to a predetermined direction through the cooperation of the limiter and the pusher, so as to adjust the seat assembly to the desired use mode. In this process, there is no need to accurately rotate the seat assembly until the pusher is in a predetermined direction, thereby avoiding the problem of insufficient rotation angle of the seat assembly and excessive rotation angle, and improving the operational experience of adjusting the use mode of the seat assembly.

[0155] Figures 18 to 23 FIG. 1 is a schematic diagram showing the structure of a buffer body 150 of a child carrier. Fig.18As shown, the seat assembly 100 also includes a buffer body 150 disposed on the seat body 130 to enhance the protection effect on the child. The buffer body 150 is made of, for example, foam. The buffer body 150 includes a headrest rear buffer body 150a, a headrest right buffer body 150b, a headrest left buffer body 150c, a right wing buffer body 150d and a left wing buffer body 150e. The seat body 130 includes a headrest portion 131 and side portions 132 located on both sides of the headrest portion 131, and the headrest rear buffer body 150a, the headrest right buffer body 150b and the headrest left buffer body 150c are respectively disposed on the headrest portion 131, wherein the headrest right buffer body 150b and the headrest left buffer body 150c are symmetrically disposed on both sides of the headrest rear buffer body 150a, so that a good buffering effect can be provided for the head of the child riding in the child carrier 1. The right side wing buffer body 150d and the left side wing buffer body 150e are respectively arranged on the two side parts 132 of the seat body 130. The shapes of the headrest rear side buffer body 150a, the headrest right side buffer body 150b, the headrest left side buffer body 150c, the right side wing buffer body 150d and the left side wing buffer body 150e can be set according to the shapes of the headrest part 131 and the side part 132. In this embodiment, the longitudinal section of the headrest rear side buffer body 150a is roughly rectangular, the longitudinal section of the rear left side buffer body 150 and the longitudinal section of the headrest right side buffer body 150b are roughly trapezoidal, and the longitudinal section of the left side wing buffer body 150e and the longitudinal section of the right side wing buffer body 150d are roughly right-angled trapezoidal, but the utility model is not limited to this.

[0156] like Figures 19 to 23 As shown, the side of the buffer body 150 (such as the headrest rear buffer body 150a, the headrest right buffer body 150b, the right wing buffer body 150d or the left wing buffer body 150e) used for connecting with the seat body 130 is the back side 153, and the side of the buffer body 150 opposite to the back side 153 is the front side 154. The buffer body 150 is provided with a plurality of buffer blocks 151 arranged at intervals, and a buffer gap 155 is formed between adjacent buffer blocks 151. The buffer gap 155 can be formed by CNC computer machine or die cutting. The above-mentioned structural arrangement makes the buffer body 150 easier to deform, thereby improving the buffering performance of the buffer body 150. In some embodiments, such as Figures 19 to 23As shown, the buffer gap 155 includes a plurality of lateral gaps 155a extending in the lateral direction and parallel to each other, but the present invention is not limited thereto. For example, in other embodiments, the buffer gap 155 includes a plurality of longitudinal gaps extending in the longitudinal direction and parallel to each other. In yet other embodiments, the buffer gap 155 includes a plurality of lateral gaps 155a extending in the lateral direction and parallel to each other, and a plurality of longitudinal gaps extending in the longitudinal direction and parallel to each other. In some other embodiments, the buffer gap 155 may include a first inclined gap extending in a first inclined direction that is angled to both the lateral direction and the longitudinal direction, and a second inclined gap extending in a second inclined direction that is angled to both the lateral direction and the longitudinal direction, wherein the first inclined direction and the second inclined direction are interlaced with each other. The present invention does not limit the specific extension direction of the buffer gap 155. In one embodiment, refer to Figures 19 to 23 , the buffer body 150 also includes a connecting portion 152, and a plurality of buffer blocks 151 are connected together by the connecting portion 152. Among them, the buffer body 150 is an integrally formed component. A plurality of buffer gaps 155 (for example, transverse gaps 155a) penetrate the buffer body 150 in its extension direction (for example, transverse direction). For example, a plurality of transverse gaps 155a penetrate both sides of the buffer body 150 in the transverse direction. The plurality of buffer gaps 155 do not penetrate the buffer body 150 in the thickness direction, that is, the plurality of buffer gaps 155 extend from the front side 154 of the buffer body 150 into the interior of the buffer body 150 but do not reach the back side 153 of the buffer body 150. The portion of the buffer body 150 that is not penetrated by the buffer gaps 155 can form a connecting portion 152, for example, a connecting portion 152 is formed near the back side 153 of the buffer body 150. Such arrangement can not only make the front surface 153 of the buffer body 150 easy to deform to improve the buffer performance of the buffer body 150 , but also connect the buffer body 150 into a whole, so as to facilitate setting the buffer body 150 on the seat body 130 .

[0157] In other embodiments not shown, the plurality of buffer gaps 155 may not penetrate the buffer body 150 in the extension direction thereof (e.g., the transverse direction, the longitudinal direction, the first oblique direction, the second oblique direction, etc.). For example, the transverse gap 155a does not penetrate the buffer body 150 in the transverse direction. The portion of the buffer body 150 not penetrated by the buffer gap 155 (e.g., near the left and right sides or near the left side or near the right side) forms the connecting portion 152. The plurality of buffer gaps 155 all penetrate the buffer body 150 in the thickness direction; or the plurality of buffer gaps 155 partially penetrate the buffer body 150 in the thickness direction (e.g., the transverse gap 155a of the buffer body 150 penetrates the buffer body 150 in the thickness direction, but the longitudinal gap of the buffer body 150 does not penetrate the buffer body 150 in the thickness direction; or the transverse gap 155a of the buffer body 150 does not penetrate the buffer body 150 in the thickness direction, but the longitudinal gap of the buffer body 150 penetrates the buffer body 150 in the thickness direction, etc.); or the plurality of buffer gaps 155 do not penetrate the buffer body 150 in the thickness direction. The present invention does not limit whether the buffer gap 155 penetrates the buffer body 150 in the thickness direction. In other embodiments not shown, the buffer body 150 may not be provided with the connecting portion 152, and the plurality of buffer blocks 151 are separated from each other, that is, the buffer gap 155 penetrates the buffer body 150 in both its extension direction and thickness direction.

[0158] The buffer body 150 with the above-mentioned structure can make the buffer body 150 more easily deformable, thereby improving the buffering performance of the buffer body 150 and better protecting the child riding in the child carrier.

[0159] According to another embodiment of the present invention, the base 200 of the child carrier 1 includes a base body 240 and a fixing device 250. Figure 1 , Fig.24 and Fig.25 The base body 240 is provided with a telescopic release button 260 and a telescopic rod 270. One end of the telescopic rod 270 is fixed to the base body 240, and the other end can be in an extended state (such as Fig.25 as shown) and the retracted state (as shown Fig.24 The telescopic release button 260 can be operated to release the telescopic rod 270 and allow it to switch between the extended state and the retracted state. The fixing device 250 is connected to the other end of the telescopic rod 270, so that the fixing device 250 can be extended or retracted relative to the base body 240. In this embodiment, there are two fixing devices 250 and two telescopic rods 270, and they are correspondingly arranged on both sides of the base body 240. The structure of one of the fixing devices 250 is described in detail below:

[0160] like Fig.24 and Fig.25As shown, the fixing device 250 includes a connecting assembly 1000, a locking mechanism 2000 and a locking mechanism 300. The connecting assembly 1000 is connected to the base body 240 via a telescopic rod 270. Fig.26 and Fig. 27 As shown, the engaging mechanism 2000 includes an engaging member 2100 and a first restoring member 2200 (as shown in FIG. Fig.33 The engaging member 2100 is pivotally connected to the connecting assembly 1000. The engaging member 2100 is in the open position (as shown in FIG. Fig. 27 ) and the closed position (as shown Fig.26 The first reset member 2200 is disposed between the clamping member 2100 and the connecting assembly 1000, and the first reset member 2200 is adapted to bias the clamping member 2100 to rotate toward the open position. The locking mechanism 300 is disposed on the connecting assembly 1000, and the locking mechanism 300 is switchable between a locking state and a release state. When the locking mechanism 300 is in the locking state, the clamping member 2100 is locked in the closed position, and when the locking mechanism 300 is in the release state, the clamping member 2100 is released from the locking state. In this way, when the locking mechanism 300 is in the release state, the clamping member 2100 will automatically switch to the open position under the action of the first reset member 2200, so that the release is convenient and smooth, and the problem of the clamping member 2100 being locked is not likely to occur. The fixing device 250 of this embodiment has a simple structure, is easy to manufacture, has a low cost and is convenient to operate.

[0161] Specifically, Figure 24 to Figure 27 As shown, the connection assembly 1000 includes a connection housing 1100 and a reinforcement member 1200 .

[0162] Furthermore, if Fig.24 and Fig.25 As shown, the connection housing 1100 is generally a rectangular shell structure. The connection housing 1100 includes a first housing 1110 and a second housing 1120 spliced ​​together. The first housing 1110 has a first side 1111 and a second side 1112 along the length direction. The second side 1112 of the first housing 1110 is provided with a first groove 1113 recessed inwardly.

[0163] like Fig.24 and Fig.25As shown, the second housing 1120 is located at the first side 1111 of the first housing 1110. The second housing 1120 is connected to the base body 240 by a telescopic rod 270. The second housing 1120 is also roughly a rectangular housing structure. In this embodiment, the size of the second housing 1120 in the width direction is roughly the same as the size of the first housing 1110 in the width direction, and the size of the second housing 1120 in the length direction is smaller than the size of the first housing 1110 in the length direction. Of course, in other embodiments, the sizes of the first housing 1110 and the second housing 1120 can also be appropriately adjusted as needed. The second housing 1120 is provided with a display window 11210 that can be used to display the indication mark (described later) of the indication assembly 400. In this embodiment, two display windows 11210 are provided on the second housing 1120, namely a first display window 11210a and a second display window 11210b, and the two display windows 11210 are arranged at intervals along the length direction of the second housing 1120. An operation opening 11220 is provided on a side of the second housing 1120 away from the first housing 1110 , and at least a portion of the locking mechanism 300 can be extended from the operation opening 11220 to be operated.

[0164] Furthermore, if Figure 26 to Figure 29 As shown, the reinforcement member 1200 includes a first reinforcement plate 1210 and a second reinforcement plate 1220 that are arranged opposite to each other and are substantially rectangular plate-shaped. The first reinforcement plate 1210 and the second reinforcement plate 1220 are arranged at intervals to form a mounting cavity 1230. One side of the first reinforcement plate 1210 and the second reinforcement plate 1220 is also recessed inward to form a second groove 1240 (as shown in FIG. Fig.31 and Fig.32 12). The connecting housing 1100 is covered outside the first reinforcing plate 1210 and the second reinforcing plate 1220, and the first reinforcing plate 1210 is located on the side of the second reinforcing plate 1220 that faces away from the display window 11210. More specifically, the shape of the first reinforcing plate 1210 roughly matches the shape of the connecting housing 1100, that is, matches the overall shape after the first housing 1110 and the second housing 1120 are spliced. The shape of the second reinforcing plate 1220 matches the shape of the first housing 1110, that is, the second reinforcing plate 1220 is shorter in length than the first reinforcing plate 1210. In this way, it is convenient for the driving member 311 (described later) of the locking mechanism 300 to extend out of the mounting cavity 1230.

[0165] like Figure 30 to Figure 32As shown, the two second grooves 1240 are opposite to and connected to the first groove 1113 to form a snap-fit ​​opening 125. The snap-fit ​​opening 125 can expose at least part of the snap-fit ​​member 2100 to snap-fit ​​with the snap-fit ​​rod of the car seat extending into the snap-fit ​​opening 125. The reinforcement member 1200 can facilitate the arrangement of the snap-fit ​​mechanism 2000 and the locking mechanism 300, and the connection housing 1100 is covered outside the first reinforcement plate 1210 and the second reinforcement plate 1220 to make the appearance of the fixing device 250 more concise and prevent some parts of the snap-fit ​​mechanism 2000 and the locking mechanism 300 from being trapped by the user.

[0166] As described above, the engaging mechanism 2000 includes an engaging member 2100 and a first restoring member 2200. Figure 32 to Figure 34 As shown, the engaging member 2100 is disposed in the mounting cavity 1230, and is specifically a engaging hook pivotally connected to the reinforcing member 1200 through a pivot shaft 2300. The engaging member 2100 is generally an elliptical sheet structure, and an engaging groove 2110 is provided at the edge of the engaging member 2100. When the engaging member 2100 is in a closed position, at least the portion of the engaging member 2100 having the engaging groove 2110 can be exposed at the engaging opening 125. The lever of the car seat can be engaged in the engaging groove 2110 to achieve the connection between the base 200 and the car seat. Fig.26 and Fig. 27 As shown, a portion of the engaging member 2100 protrudes in a direction away from the pivot axis 2300 to form a limiting portion 2120. The rotation direction of the engaging member 2100 from the closed position to the open position is the third direction D3. The engaging member 2100 pivots relative to the reinforcing member 1200 (or pivots relative to the connecting assembly 1000) with the pivot axis 2300 as the rotation center, and the engaging groove 2110 is located in the third direction D3 of the limiting portion 2120. That is, in this embodiment, Fig.26 and Fig. 27 As shown, the front and rear up and down directions of the base body 240 are taken as the reference, that is, Fig.26 and Fig. 27 In the embodiment, the same direction as the fourth direction D4 is the front (indicated by arrow "F"), the opposite direction to the fourth direction D4 is the rear (indicated by arrow "B"), and the upper (indicated by arrow "U") and the lower (indicated by arrow "D") are respectively perpendicular to the fourth direction D4. When the engaging member 2100 is in the closed position, the limiting portion 2120 is located at the upper front of the pivot shaft 2300, and the engaging slot 2110 is located at the lower front of the pivot shaft 2300; when the engaging member 2100 is in the closed position, the limiting portion 2120 is located at the lower front of the pivot shaft 2300, and the engaging slot 2110 is located at the lower rear of the pivot shaft 2300.

[0167] In this embodiment, Fig.33 and Fig.34As shown, the first reset member 2200 is a torsion spring. The torsion spring includes two movable ends 2210 and a first collar 2220 located between the two movable ends 2210. The first collar 2220 is sleeved on the pivot shaft 2300, and the two movable ends 2210 are respectively against the engaging member 2100 and the reinforcing member 1200 (i.e., the first reinforcing plate 1210 or the second reinforcing plate 1220), so that the first reset member 2200 is suitable for biasing the engaging member 2100 to rotate toward the open position.

[0168] Specifically, Figure 26 to Figure 29 As shown, the locking mechanism 300 includes a locking assembly 310 , a second restoring member 320 , a third restoring member 330 , a safety release member 340 and a fourth restoring member 350 .

[0169] Furthermore, the locking assembly 310 is movably disposed in the installation cavity 1230 and is movable between a first locking position and a first unlocking position. When the locking assembly 310 is in the first locking position, it can cooperate with the limiting portion 2120 of the engaging member 2100 to lock the engaging member 2100 in the closed position, and when the locking assembly 310 is in the first unlocking position, it is released from the limiting portion 2120.

[0170] Specifically, Fig.26 and Fig. 27 As shown, the locking assembly 310 includes a driving member 311 and a stop pin 312. The driving member 311 can be operated to move from the first unlocking position to the first locking position. The driving member 311 is generally a rectangular plate-shaped structure. A mounting groove 3113 is provided on a side of the driving member 311 close to the engaging member 2100. A side of the driving member 311 away from the engaging member 2100 is connected to the housing 1100 (i.e., Fig.28 and Fig.29 The first operating portion 3112 protrudes out of the mounting cavity 1230 through one of the display windows 11210 to be operated.

[0171] Furthermore, if Figure 26 to Figure 29 As shown, the limiting pin 312 is fixed to the driving member 311, and the limiting pin 312 can abut against the limiting portion 2120 to lock the engaging member 2100 in the closed position. Fig.31 and Fig.32As shown, the first reinforcing plate 1210 and the second reinforcing plate 1220 are respectively provided with a first elongated slot 12110 and a second elongated slot 12210 which are arranged opposite to each other, and the limiting pin 312 passes through the first elongated slot 12110, the driving member 311 and the second elongated slot 12210 in sequence, so that the limiting pin 312 is fixed to the driving member 311 and can move along the first elongated slot 12110 and the second elongated slot 12210. In this embodiment, the first elongated slot 12110 and the second elongated slot 12210 are both arranged along the length direction of the connecting housing 1100, so that the driving member 311 can drive the limiting pin 312 to move between the first locking position and the first unlocking position.

[0172] In this embodiment, the first elongated slot 12110 and the second elongated slot 12210 have the same shape and completely overlap. In other embodiments, the first elongated slot 12110 and the second elongated slot 12210 may also have different shapes and partially overlap, and the limiting pin 312 is limited to move along the overlapping portion of the first elongated slot 12110 and the second elongated slot 12210.

[0173] Further, the second reset member 320 is arranged between the connecting assembly 1000 and the locking assembly 310, and the second reset member 320 is suitable for biasing the locking assembly 310 to move to the first locking position. Specifically, the second reset member 320 is suitable for biasing the driving member 311 and the limiting pin 312 fixed to the driving member 311 to move to the first locking position and lock in the first locking position. The driving member 311 has a first matching portion 3111 (for example, an inclined surface) at one end close to the engaging member 2100, and the limiting portion 2120 has a second matching portion 21210 (for example, an inclined surface) matched with the first matching portion 3111. In the process of the driving member 311 moving to the first locking position, the first matching portion 3111 pushes the second matching portion 21210, and the driving member 311 drives the engaging member 2100 to rotate from the open position to the direction opposite to the third direction D3 to the closed position. The limiting pin 312 moved to the first locking position abuts against the limiting portion 2120 to lock the engaging member 2100 in the closed position. Fig.26 and Fig. 27As shown, the driving member 311 is provided with a mounting groove 3113 close to the limiting pin 312. The second reset member 320 is a spring and is accommodated in the mounting groove 3113. The locking mechanism 300 may further include a positioning pin 361, which passes through the first reinforcing plate 1210, the mounting groove 3113 and the second reinforcing plate 1220 in sequence. The mounting groove 3113 has a first groove wall 3113a and a second groove wall 3113b that are arranged opposite to each other. The first groove wall 3113a is closer to the limiting pin 312 than the second groove wall 3113b. The first groove wall 3113a has a first mounting protrusion 3113c, one end of the second reset member 320 is sleeved on the first mounting protrusion 3113c and abuts against the first groove wall 3113a, and the other end of the second reset member 320 abuts against the positioning pin 361. In this way, the second reset member 320 can be prevented from shifting during the biasing process. When the driving member 311 is in the first locking position, as shown in FIG. Fig.26 As shown in FIG. 1 , the positioning pin 361 abuts against the second groove wall 3113b. When the driving member 311 moves from the first locking position to the first unlocking position, as shown in FIG. Fig. 27 As shown, the positioning pin 361 is located between the first groove wall 3113a and the second groove wall 3113b, and the second restoring member 320 is compressed.

[0174] Furthermore, the driving member 311 is provided with a first safety locking portion, and the connecting assembly 1000 is provided with a second safety locking portion, and the first safety locking portion and the second safety locking portion can be detachably pressed against or engaged with each other to prevent the driving member 311 from moving to the first unlocking position. The third reset member 330 is provided between the driving member 311 and the first safety locking portion, and the third reset member 330 is used to provide an elastic force to make the first safety locking portion engage or press against the second safety locking portion. In this way, the first operating portion 3112 of the driving member 311 can be prevented from being accidentally touched and accidentally unlocked.

[0175] Specifically, the first safety locking portion is a safety pin 362 slidably disposed on the driving member 311, and the second safety locking portion is a stop pin 363 fixed to the connecting assembly 1000 and protruding toward the mounting cavity 1230 between the first reinforcing plate 1210 and the second reinforcing plate 1220. Fig.28 and Fig.29 As shown, the installation method of the safety pin 362 can be that a sliding hole 3114 is set on the driving member 311, and the safety pin 362 is inserted into the sliding hole 3114 and can slide in the sliding hole 3114. The sliding hole 3114 is along the direction from the first reinforcing plate 1210 to the second reinforcing plate 1220 (i.e., along Fig.28 and Fig.29The safety pin 362 has a first end 3114a and a second end 3114b. When the safety pin 362 slides to the first end 3114a, it abuts against the side of the blocking pin 363 facing the engaging member 2100. When the safety pin 362 slides to the second end 3114b, it disengages from the blocking pin 363. Specifically, the blocking pin 363 is fixed to the first reinforcing plate 1210. Specifically, the sliding hole 3114 is along the direction from the first reinforcing plate 1210 to the second reinforcing plate 1220 (i.e., along the Fig.28 and Fig.29 The strip-shaped holes extend in the fifth direction D5), that is, the length direction of the strip-shaped holes is perpendicular to the first reinforcing plate 1210 and the second reinforcing plate 1220.

[0176] In this embodiment, Fig.28 , Fig.29 and Fig.41 As shown, the third reset member 330 is two mutually connected torsion springs. Each torsion spring includes a connecting end 331, a deforming end 332 and a second collar 333 located between the connecting end 331 and the deforming end 332. The deforming ends 332 of the two torsion springs are connected to each other. A mounting pin 364 is fixed on the driving member 311, and the mounting pin 364 is substantially parallel to the safety pin 362 and is located on the side of the sliding hole 3114 close to the engaging member 2100. The connecting ends 331 of the two torsion springs are annular and are both sleeved on the safety pin 362, and the second collars 333 of the two torsion springs are both sleeved on the mounting pin 364. The deforming ends 332 of the two torsion springs and the connection between the two deforming ends 332 can abut against the driving member 311 to provide an elastic force to engage or abut the first safety locking portion with the second safety locking portion. Specifically, a slot 3115 is provided on the driving member 311, which is roughly opposite to the sliding hole 3114. The deformation ends 332 of the two torsion springs and the connection between the two deformation ends 332 extend into the slot 3115 and can be abutted against the slot wall of the slot 3115 to provide an elastic force to engage or abut the first safety locking part and the second safety locking part.

[0177] Furthermore, if Figure 26 to Figure 29 As shown, the safety release member 340 can be movably disposed on the connection assembly 1000 and can be switched between the second locking position and the second unlocking position. The safety release member 340 can be operated to move to the second unlocking position and drive the safety pin 362 to slide and disengage from the abutment with the blocking pin 363. The second unlocking position is closer to the engaging member 2100 than the second locking position, that is, the second locking position is located in the fourth direction D4 of the second unlocking position. Specifically, as shown in FIG. Fig.40As shown, the safety release member 340 includes a release member body 341. One end of the release member body 341 protrudes toward the operation port 1122 of the second housing 1120 to form a second operating portion 342. The second operating portion 342 can be operated to drive the safety release member 340 to move. The other end of the release member body 341 has a fork-shaped structure and includes two fork legs 343, and the stop pin 363 is located between the two fork legs 343. The two fork legs 343 are provided with an inclined surface or an arc surface 3431 for pushing the safety pin 362 to slide.

[0178] Further, the fourth reset member 350 is disposed between the safety release member 340 and the connecting assembly 1000. The fourth reset member 350 is adapted to bias the safety release member 340 to move toward the second locking position. Fig.28 and Fig.29 As shown, a second mounting protrusion 3411 is provided on one side of the release member body 341 facing the safety pin 362. The fourth reset member 350 is a spring. One end of the fourth reset member 350 is sleeved on the second mounting protrusion 3411 and abuts against the release member body 341, and the other end abuts against the abutting pin 363. In this way, the fourth reset member 350 can be prevented from shifting during the biasing process.

[0179] The release process of the locking mechanism 300 is described below:

[0180] When the locking mechanism 300 needs to be released, so that the engaging member 2100 switches from the closed position to the open position to disengage from the engaging rod, as shown in FIG. Fig.30 and Fig.31 As shown, first, the second operating portion 342 of the safety release member 340 needs to be pushed toward the direction close to the engaging member 2100 (ie, the opposite direction of the fourth direction D4) so ​​that the safety release member 340 moves from the second locking position to the second unlocking position. Fig.34 and Fig.39 As shown, during the movement of the safety release member 340, the inclined surfaces or arcuate surfaces 3431 on the two fork legs 343 push the safety pin 362, so that the safety pin 362 moves from the first end 3114a of the sliding hole 3114 to the second end 3114b, so that the safety pin 362 no longer abuts against the blocking pin 363 or is no longer blocked by the blocking pin 363. Fig.30 and Fig.35 As shown, at this time, the first operating portion 3112 of the driving member 311 can be pushed in a direction away from the engaging member 2100 (ie, the fourth direction D4), so that the driving member 311 moves from the first locking position to the first unlocking position. Fig.33 and Fig.38As shown, the driving member 311 drives the limiting pin 312 fixedly connected thereto to move in a direction away from the engaging member 2100 (i.e., the fourth direction D4) during the movement, and disengages from the limiting portion 2120. The engaging member 2100, which loses the thrust of the limiting pin 312, pivots from the closed position to the open position under the elastic force of the first restoring member 2200, so that the engaging groove 2110 of the engaging member 2100 is disengaged from the engaging rod, allowing the child carrier 1 to be removed from the car seat.

[0181] Furthermore, if Fig.26 As shown, when the locking mechanism 300 is in a locked state and the safety release member 340 is not operated, that is, the driving member 311 is in the first locking position, and the safety release member is in the second locking position, there is an idle stroke L between the driving member 311 and the blocking pin 363. When the driving member 311 is operated and moves within the idle stroke L, the limiting pin 312 and the limiting portion 2120 are kept against each other, and the safety release member 340 and the safety pin 362 are spaced apart. In this way, when the first operating portion 3112 of the driving member 311 is accidentally touched, if the moving stroke of the driving member 311 is within the idle stroke L, the limiting pin 312 will not be separated from the limiting portion 2120, and the safety pin 362 will not be pushed by the inclined surface or arc surface 3431 of the safety release member 340 to move. At the same time, when the second operating portion 342 of the safety release member 340 is accidentally touched, if the moving stroke of the safety release member 340 is within the idle stroke L, the limit pin 312 will not be separated from the limit portion 2120, and the safety pin 362 will not be pushed by the inclined surface or arc surface 3431 of the safety release member 340 to move, thereby causing the driving member 311 to be unlocked. In this way, the safety of the fixing device 250 can be further guaranteed, and the damage of the first operating portion 3112 caused by accidental touching and rigid touching after the accidental touching can be reduced.

[0182] Furthermore, if Fig.30 , Fig.31 , Fig.35 and Fig.36 As shown, the fixing device 250 may further include an indication component 400 for indicating the state of the locking mechanism 300. The indication component 400 includes at least a first indication mark 410 for indicating that the locking mechanism 300 is in a locked state and a second indication mark 420 for indicating that the locking mechanism 300 is in an unlocked state. In this embodiment, the first indication mark 410 is a green indication bar, and the second indication mark 420 is a red indication bar. In other embodiments, the first indication mark 410 and the second indication mark 420 may also be indication bars of different shapes or patterns.

[0183] The first indicator mark 410 and the second indicator mark 420 are disposed at intervals on the end of the driving member 311 away from the engaging member 2100. In this embodiment, the first indicator mark 410 and the second indicator mark 420 are disposed at intervals on the first operating portion 3112 of the driving member 311. The first display window 11210a on the second shell 1120 is closer to the engaging member 2100 than the second display window 11210b, that is, the second display window 11210b is located in the fourth direction D4 of the first display window 11210a. The second shell 1120 is provided with a shielding member 11230 located between the first display window 11210a and the second display window 11210b. When the driving member 311 is in the first locking position, as shown in FIG. Fig.30 and Fig.31 As shown, the first indicator mark 410 is displayed in the first display window 11210a, and the second indicator mark 420 is blocked by the shielding member 11230, that is, the first operating portion 3112 displays a green indicator bar, so that the user can know that the locking mechanism 300 is in a locked state. Fig.35 and Fig.36 As shown, when the driving member 311 is located at the first unlocking position, the second indicator mark 420 is displayed in the second display window 11210b, and the first indicator mark 410 is blocked by the shielding member 11230, that is, the first operating part 3112 displays a red indicator bar, so that the user can know that the locking mechanism 300 is in the unlocking state.

[0184] The fixing device 250, the base 200 and the child carrier 1 in the present invention have at least the following technical effects:

[0185] The fixing device 250 of the above-mentioned child carrier 1 is connected to the base body 240 through its connecting assembly 1000. The connecting assembly 1000 is provided with a clamping mechanism 2000 and a locking mechanism 300. The clamping member 2100 in the locking mechanism 300 is pivotally connected to the connecting assembly 1000 and can rotate between an open position and a closed position. When the clamping member 2100 is in the closed position, it can be clamped with the clamping rod of the car seat, so as to realize the connection between the base 200 (or the child carrier 1) and the car seat. The first reset member 2200 is suitable for biasing the clamping member 2100 to move to the open position. The locking mechanism 300 can switch between a locking state in which the clamping member 2100 is locked in the closed position and a release state in which the clamping member 2100 is released. Thus, when the locking mechanism 300 is in the unlocked state, the engaging member 2100 will automatically switch to the open position under the action of the first reset member 2200, so that the unlocking can be performed smoothly and conveniently, and the locking problem of the engaging member 2100 is not likely to occur. The fixing device 250 of the utility model has a simple structure, is easy to manufacture, has a low cost and is easy to operate.

[0186] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rotation angle adjustment mechanism for a child carrier, the child carrier comprising a base and a seat assembly rotatably disposed on the base, characterized in that: The rotation angle adjustment mechanism comprises: A limiting member, arranged on the base; A pusher, disposed on the seat assembly and rotatable relative to the base together with the seat assembly; and An elastic restoring member, adapted to provide an elastic restoring force for the pushing member so that the pushing member pushes against the limiting member; Wherein, when the seat assembly is rotated to make the pushing member located within a specific angle range, the limiting member drives the pushing member to rotate toward a position in a predetermined direction, and when the pushing member is located in the predetermined direction, the limiting member can cooperate with the pushing member to limit the pushing member to the predetermined direction, so that the seat assembly is limited to a preset use mode; Wherein, the limiting member is provided with a limiting recess and a guiding surface, and the guiding surface limits the specific angle range; The pushing member has a clamping end, and when the pushing member is located in the predetermined direction, the clamping end is clamped with the limiting recess; The pushing member is movably arranged on the seat assembly and is provided with a pushing surface suitable for cooperating with the guide surface. When the seat assembly is rotated to make the pushing surface at least partially contact with the guide surface, the pushing member is rotated to the position of the predetermined direction and engaged with the limiting recess through the cooperation between the pushing surface and the guide surface under the action of the elastic restoring force of the elastic reset member; The number of the pushing members is two, and the two pushing members are symmetrically arranged on the seat assembly, and the two ends of the elastic reset member are respectively in contact with the two pushing members.

2. The rotation angle adjustment mechanism according to claim 1, characterized in that: The base is provided with a plug-in hole, the seat assembly comprises a seat body and a fixing cover, the fixing cover is at least partially accommodated in the plug-in hole and connected to the seat body, so that the seat body can rotate with the fixing cover relative to the base around a rotation axis, and the pushing member is provided on the fixing cover; Among them, one of the fixed cover and the pushing member is provided with a travel groove, and the other of the fixed cover and the pushing member is provided with a limiting protrusion, and the limiting protrusion is inserted and matched with the travel groove to limit the moving travel of the pushing member.

3. The rotation angle adjustment mechanism according to claim 1, characterized in that: The moving direction of the pushing member is perpendicular to the rotation axis of the seat assembly, and the pushing member or an extension line of the pushing member passes through the rotation axis.

4. The rotation angle adjustment mechanism according to claim 1, characterized in that: The limiting member is also provided with: a gentle slope surface, the gentle slope surface is connected to a side of the guide surface away from the limiting recess and smoothly transitions to the guide surface, and when the pusher contacts the gentle slope surface, the elastic reset member is in an energy storage state; as well as A lifting surface, wherein the lifting surface allows the gentle slope surface to smoothly transition to the guiding surface, and two sides of the lifting surface are respectively connected to the gentle slope surface and the guiding surface.

5. A child carrier, characterized in that: include: A seat assembly, the seat assembly comprising a seat body and a buffer body arranged on the seat body; Base; as well as The rotation angle adjustment mechanism according to any one of claims 1 to 4, Wherein, the buffer body includes a plurality of buffer blocks, a buffer gap is formed between two adjacent buffer blocks, the seat body includes a headrest portion and side portions respectively located on both sides of the headrest portion, and the headrest portion and the side portions are provided with the buffer body.

6. A fixing device for a child carrier, the child carrier comprising a base and a seat assembly mounted on the base, the base comprising a base body and the fixing device, characterized in that: The fixing device comprises: A connecting component connected to the base body; A locking mechanism, comprising a locking member and a first reset member, wherein the locking member is pivotally connected to the connecting assembly, the locking member is rotatable between an open position and a closed position, and the locking member can be locked with a locking rod on the car seat when in the closed position, the first reset member is disposed between the locking member and the connecting assembly, and the first reset member is adapted to bias the locking member to rotate toward the open position; and a locking mechanism, disposed on the connecting assembly, wherein the locking mechanism is switchable between a locking state and a releasing state, wherein the locking mechanism locks the engaging member in the closed position when the locking mechanism is in the locking state, and releases the locking of the engaging member in the closed position when the locking mechanism is in the releasing state; Wherein, the locking mechanism comprises: a locking assembly, which is disposed on the connecting assembly and is movable between a first locking position and a first unlocking position, wherein the locking assembly can cooperate with the limiting portion of the engaging member to lock the engaging member in the closed position when the locking assembly is in the first locking position, and is released from the limiting portion when the locking assembly is in the first unlocking position; and A second restoring member, disposed between the connecting assembly and the locking assembly; The locking assembly can be operated to move to the first unlocking position, and the second reset member is suitable for biasing the locking assembly to move toward the first locking position.

7. The fixing device according to claim 6, characterized in that: The locking assembly comprises: a driving member, disposed on the connecting assembly, operable to move from the first unlocking position to the first locking position; and A limit pin fixed to the driving member, wherein the limit pin can abut against the limit portion to lock the engaging member in the closed position; The rotation direction of the engaging member from the closed position to the open position is taken as a first direction, the engaging member pivots relative to the connecting assembly with the pivot axis as the rotation center, the engaging member has an engaging groove for engaging with the engaging rod, the engaging groove and the limiting portion are both located at the edge of the engaging member, and the engaging groove is located in the first direction of the limiting portion.

8. The fixing device according to claim 7, characterized in that: The first restoring member is a torsion spring, which is sleeved on the pivot shaft and has two movable ends that respectively abut against the engaging member and the connecting assembly.

9. The fixing device according to claim 7, characterized in that: The driving member is provided with a first safety locking portion, and the connecting assembly is provided with a second safety locking portion, wherein the first safety locking portion and the second safety locking portion can be detachably pressed against or engaged with each other to prevent the driving member from moving to the first unlocking position; The first safety locking portion is a safety pin slidably disposed on the driving member, and the second safety locking portion is a resisting pin fixed to the connecting assembly; The locking mechanism also includes: A safety release member, movably disposed on the connecting assembly, the safety release member can be switched between a second locking position and a second release position, and the safety release member can be operated to move to the second release position and drive the safety pin to slide and disengage from the abutment of the blocking pin; One end of the safety release member extends out of the connecting assembly so as to be operated, and the other end of the safety release member is in a fork-shaped structure and has two fork legs, and the blocking pin is located between the two fork legs; The two fork legs are provided with arc-shaped surfaces for pushing the safety pin to slide.

10. The fixing device according to claim 7, characterized in that: The driving member is provided with a first safety locking portion, and the connecting assembly is provided with a second safety locking portion, wherein the first safety locking portion and the second safety locking portion can be detachably pressed against or engaged with each other to prevent the driving member from moving to the first unlocking position; The first safety locking portion is a safety pin slidably disposed on the driving member, and the second safety locking portion is a resisting pin fixed to the connecting assembly; The locking mechanism also includes: A safety release member, movably disposed on the connecting assembly, the safety release member can be switched between a second locking position and a second release position, and the safety release member can be operated to move to the second release position and drive the safety pin to slide and disengage from the abutment of the blocking pin; When the locking mechanism is in a locked state and the safety release member is not operated, there is an idle stroke between the driving member and the blocking pin. When the driving member is operated and moves within the idle stroke, the limit pin and the limit portion remain in abutment with each other, and the safety release member and the safety pin are spaced apart.

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