Child carrier

Abstract

The utility model relates to a carrier for children, which comprises a backrest component, a backrest component and a backrest component, and a child heightening seat cushion. The heightening seat cushion for children comprises a seat cushion main body, wherein a matching groove suitable for accommodating a cross rod is formed in the lower surface of the seat cushion main body; the connecting mechanism is arranged on the seat cushion body, and the heightening seat cushion for children can be connected with the backrest assembly through the connecting mechanism. The connecting mechanism comprises a locking piece, the locking piece is movably connected with the seat cushion body and can be switched between an unlocking position and a locking position, and a clamping hook part used for being connected with the transverse rod in a clamping mode is formed at one end of the locking piece. When the locking piece is located at the locking position, the locking piece is connected with the backrest assembly in a clamped mode so as to allow the child heightening seat cushion to be connected with the backrest assembly. When the locking piece is located at the locking position, the locking piece and the backrest assembly are unclamped, so that the child heightening seat cushion is allowed to be separated from the backrest assembly. By arranging the detachable child heightening seat cushion, the child safety seat can have multiple use modes, and therefore the use requirements of children of different age groups can be met.

Description

Technical Field

[0001] This application relates to the technical field of children's products, and particularly to a children's carrier. Background Art

[0002] Children's safety seats provide safety guarantees for children traveling by car. To extend the usage stage of the safety seats, children's safety seats are designed with multiple usage modes so that children of different ages can use them. Currently, some children's booster seats configured in children's safety seats on the market have problems such as complex structures and inconvenient disassembly of the booster seats. Summary of the Invention

[0003] According to various embodiments of the present application, a children's carrier is provided, and at the same time, a children's booster seat that can be used independently, a tilt adjustment device, and a children's chair with the tilt adjustment device are also provided.

[0004] According to one aspect of the present application, a children's booster seat is provided. The children's booster seat is adapted to be detachably connected to a backrest assembly. The children's booster seat includes: a seat cushion main body and a connecting mechanism. The connecting mechanism is provided on the seat cushion main body. The children's booster seat can be connected to the backrest assembly through the connecting mechanism. Among them, the connecting mechanism includes a locking member. The locking member is movably connected to the seat cushion main body and can switch between an unlocking position and a locking position. When the locking member is in the locking position, the locking member is engaged with the backrest assembly to allow the children's booster seat to be connected to the backrest assembly; when the locking member is in the unlocking position, the locking member is disengaged from the backrest assembly to allow the children's booster seat to be separated from the backrest assembly.

[0005] In one embodiment, the locking member is pivotally connected to the seat cushion main body and can pivot between an unlocking position and a locking position. The backrest assembly includes a cross bar. One end of the locking member forms a hook portion for engaging with the cross bar.

[0006] In one embodiment, the backrest assembly further includes a backrest main body and a mating rib. Among them, the mating rib extends in the front-rear direction. One end of the mating rib is connected to the backrest main body, and the other end of the mating rib is connected to the cross bar.

[0007] In one embodiment, the connecting mechanism further includes an unlocking member. The unlocking member is pivotally connected to the seat cushion main body and can switch between a first position and a second position to drive the locking member to switch between a locking position and an unlocking position. When the unlocking member is in the first position, the locking member is in the locking position. When the unlocking member is in the second position, the locking member is in the unlocking position.

[0008] In one embodiment, the unlocking member is pivotally connected to the seat cushion body such that the unlocking member can pivot between a first position and a second position, wherein the angle between the unlocking member and the seat cushion body when the unlocking member is in the second position is greater than the angle between the unlocking member and the seat cushion body when the unlocking member is in the first position.

[0009] In one embodiment, the unlocking member has a handle portion, and a receiving groove is provided on the upper surface of the seat cushion body; when the unlocking member pivots to the first position, the handle portion is received in the receiving groove, and when the unlocking member pivots to the second position, the handle portion of the unlocking member disengages from the receiving groove.

[0010] In one embodiment, the unlocking member has a pivot recess, the locking member is provided with a driving portion, and the unlocking member has a third position between the first position and the second position; when the unlocking member pivots from the first position to the third position, the pivot recess of the unlocking member does not abut against the driving portion, and the locking member remains in the locked position; when the unlocking member pivots from the third position to the second position, the pivot recess of the unlocking member pushes against the driving portion, causing the locking member to pivot from the locked position to the unlocked position.

[0011] In one embodiment, the locking member includes a pivot portion pivotally connected to the seat cushion body and a driving portion connected to the pivot portion. The unlocking member has a third position between the first position and the second position and is provided with a pivot recess, the pivot portion is at least partially received in the pivot recess, and the driving portion can at least partially extend out of the pivot recess. When the unlocking member pivots to the third position, the end of the pivot recess can push against the driving portion to drive the locking member to pivot.

[0012] In one embodiment, the seat cushion body is further provided with a channel, and at least a part of the locking member can extend into the receiving groove through the channel to be connected to the unlocking member.

[0013] In one embodiment, the pivot axis of the locking member relative to the seat cushion body and the pivot axis of the unlocking member relative to the seat cushion body are collinear or parallel.

[0014] In one embodiment, the connecting mechanism further includes a first elastic member, which has: a first end connected to the seat cushion body, a second end connected to the unlocking member, and a third end connected to the locking member. Wherein, the second end biases the unlocking member in the direction of the first position, and the third end biases the locking member in the direction of the locked position.

[0015] In one embodiment, the connecting mechanism further includes a second elastic member, one end of which is connected to the seat cushion body and the other end of which is connected to the unlocking member; wherein the second elastic member biases the unlocking member in the direction of the first position.

[0016] In one embodiment, the connecting mechanism further includes a third elastic member. One end of the third elastic member is connected to the seat cushion body, and the other end of the third elastic member is connected to the locking member. Wherein, the third elastic member biases the locking member in the direction of the locking position.

[0017] In one embodiment, the seat cushion body is provided with a storage recess and a cover body that is openably and closably disposed in the storage recess. The unlocking member is pivotally connected to the cover body.

[0018] In one embodiment, the seat cushion body has a lower surface adapted to be placed on an automobile seat, and the lower surface is provided with a mating groove that is adapted to at least partially receive the backrest assembly.

[0019] In one embodiment, the seat cushion body includes a front end and a rear end. The lower surface of the seat cushion body is provided with a mating groove, and the mating groove includes: a first groove portion and a second groove portion. The first groove portion extends from the rear end to the front end, and two first groove portions are adapted to respectively at least partially receive the mating ribs. The second groove portion is located at the front end, and the end of the second groove portion is connected to the first groove portion. The second groove portion is adapted to at least partially receive the cross bar. When the locking member is in the locking position, the hook portion is inserted into the second groove portion to be engaged with the cross bar.

[0020] In one embodiment, the locking member is disposed at the front end of the child booster seat; the rear end of the child booster seat is provided with a first engaging inclined surface for engaging with the backrest assembly.

[0021] In one embodiment, the upper surface of the seat cushion body is provided with a storage recess adapted to store items, and an openable and closable cover body is disposed at the opening of the storage recess. The cover body has an open state and a closed state, and an opening and closing mechanism is disposed on the cover body for locking the cover body in the closed state.

[0022] In one embodiment, the seat cushion body is provided with an engaging hole, and the opening and closing mechanism includes an opening and closing unlocking member. The opening and closing unlocking member is movably disposed on the cover body and has a first position and a second position. The opening and closing unlocking member has an engaging end portion and an unlockable unlocking portion. When the opening and closing unlocking member is in the first position, the engaging end portion can be engaged with the engaging hole; when the opening and closing unlocking member is in the second position, the engaging end portion is separated from the engaging hole.

[0023] In one embodiment, the opening and closing mechanism further includes an opening and closing reset member. The opening and closing reset member is disposed between the cover body and the opening and closing unlocking member, and the opening and closing reset member abuts against the opening and closing unlocking member to bias the opening and closing unlocking member to move towards the first position.

[0024] In one embodiment, a receiving recess is formed in the cover body, and an operation port communicating with the receiving recess is disposed on the upper surface of the cover body. The opening and closing unlocking member is movably disposed in the receiving recess. When the opening and closing unlocking member is in the first position, the unlocking portion faces the operation port. When the opening and closing unlocking member is in the second position, the engaging end portion extends out of the receiving recess to be engaged with the engaging hole.

[0025] In one embodiment, the child booster seat further includes armrest portions. Wherein, the armrest portions are disposed on both sides of the seat cushion body, and a first through-hole adapted for a vehicle seat belt to pass through is formed between the armrest portions and the seat cushion body.

[0026] In one embodiment, the child booster seat further includes a storage cup holder. Each armrest portion includes a first armrest portion located in front of the first through-hole and a second armrest portion located behind the first through-hole. A cup holder recess is provided on at least one of the first armrest portions. The storage cup holder includes a storage cup, a connecting convex is provided on the side wall of the storage cup, and an access groove communicating with a limiting hole is provided in the cup holder recess. The connecting convex enters and locks in the limiting hole through the access groove to fix the storage cup holder at the cup holder recess.

[0027] In one embodiment, a connecting post is provided on the bottom wall of the storage cup. A first connecting hole for the connecting post to be inserted and fitted is provided in the cup holder recess. The cup holder recess is further provided with a plurality of deformation holes, and the plurality of deformation holes are symmetrically distributed on both sides of the limiting hole.

[0028] In one embodiment, a connecting belt assembly is further provided in the storage recess. The connecting belt assembly includes a webbing and a connector. The connector is connected to the webbing and can be used to engage with a vehicle seat. One end of the cover body is pivotally connected to the seat cushion body, and an opening and closing mechanism is provided at the other end of the cover body. When the cover body is in a closed state, the cover body is adapted to position at least a part of the connecting belt assembly in the storage recess. The rotation direction when the cover body is opened is opposite to the rotation direction when the unlocking member is unlocked.

[0029] In one embodiment, the webbing includes a first webbing and a second webbing. Connectors are respectively provided at both ends of the first webbing. One end of the second webbing is connected to the middle of the first webbing, and the other end of the second webbing is connected to the storage recess. The child booster seat is provided with two armrest portions, and each armrest portion has a second through-hole for the corresponding connector to pass through.

[0030] In one embodiment, the child booster seat further includes a crotch belt hole. A storage recess adapted for storing items is provided on the upper surface of the seat cushion body. A lid that can be opened and closed is provided at the opening of the storage recess. The crotch belt hole is provided through the lid.

[0031] According to another aspect of the present application, a child carrier is further provided. The child carrier includes a seat assembly. The seat assembly includes: a backrest assembly and the child booster seat in any of the above embodiments, and the child booster seat is detachably connected to the backrest assembly.

[0032] In one embodiment, the backrest assembly includes a backrest main body, a fitting rib, and a cross bar. Wherein, one end of the fitting rib is connected to the backrest main body, and the other end is connected to the cross bar.

[0033] In one embodiment, the backrest assembly further comprises a base. The backrest body is connected to the base via a matching rib, and a gap is formed between the crossbar and the base.

[0034] In one embodiment, a second engaging slope is provided on the backrest body or the matching rib, and the second engaging slope is arranged opposite to the crossbar. The second engaging slope is suitable for abutting against the first engaging slope of the child booster seat cushion to engage the child booster seat cushion between the backrest body and the base.

[0035] In one embodiment, the backrest assembly includes a backrest body, two matching ribs connected to the backrest body, and a cross bar connected between the two matching ribs. The child carrier also includes an adjustment mechanism, which includes a seat belt locking assembly and a seat belt adjustment release member. The seat belt locking assembly is arranged on the cross bar for allowing the adjustment belt of the seat belt to pass through, and has a locked state and a released state. The seat belt adjustment release member can be movably passed through the child booster seat cushion, and the seat belt adjustment release member has an operating section and a driving end, the operating section is exposed on the upper surface of the child booster seat cushion, and the driving end is located on the lower surface of the child booster seat cushion, and the operating section can be operated to allow the seat belt locking assembly to switch from the locked state to the released state by pushing the driving end.

[0036] In one embodiment, the safety belt adjustment and release member is pivotally connected to the seat cushion body of the child booster seat via a pivot shaft, and the pivot shaft is connected to an end of the operating section away from the driving end.

[0037] In one embodiment, the seat cushion body of the child booster seat is provided with a through-channel, and the safety belt adjustment and release member is movably provided in the through-channel and can at least partially extend out of the through-channel.

[0038] In one embodiment, the child carrier further comprises a seat pad. The seat pad comprises a first pad. One end of the first pad is connected to the child booster seat and serves as a pivot end to allow the first pad to flip between an open position and a closed position. When the first pad is in the open position, the cover of the child booster seat can be operated to allow the cover to be opened or closed.

[0039] In one embodiment, the seat pad further includes a second pad. The second pad is connected to the child booster seat and covers at least a portion of the child booster seat, and the second pad is provided with an escape recess to allow the cover to be exposed from the escape recess. When the first pad is in the covering position, the first pad and the second pad jointly cover the upper surface of the child booster seat.

[0040] In one embodiment, the pivot end defines a pivot axis of the seat cushion, the booster seat is provided with a second set of holes for the connecting strap assembly to pass through, and the pivot axis of the seat cushion is located between the backrest body of the backrest assembly and the second set of holes.

[0041] In one embodiment, the pivot end is connected between the seat body of the child booster seat, which is located between the first side of the cover body and the backrest body of the backrest assembly.

[0042] According to another aspect of the present application, there is also provided a tilt adjustment device for a child carrier. The child carrier includes a base and a seat assembly. The seat assembly includes a backrest assembly and a seat body connected to the backrest assembly. The seat assembly is slidably disposed on the base to change the tilt angle of the seat assembly relative to the base. The tilt adjustment device is respectively connected to the base and the seat assembly, and the tilt adjustment device selectively allows or restricts the relative sliding between the seat assembly and the base.

[0043] In one embodiment, the seat assembly includes a backrest assembly. The backrest assembly includes a backrest body and a mating rib connected to the backrest body. The mating rib is slidably disposed on the base. The tilt adjustment device includes: an engaging mechanism and an operating component. The engaging mechanism is connected between the base and the mating rib and can be switched between a locking position and an unlocking position. When the engaging mechanism is in the locking position, the mating rib is restricted from sliding relative to the base; when the engaging mechanism is in the unlocking position, the mating rib is allowed to slide relative to the base. The operating component is movably disposed on the seat body. The operating component is drivingly connected to the engaging mechanism and the two can be separated from each other. The operating component can be operated to drive the engaging mechanism to switch from the locking position to the unlocking position.

[0044] In one embodiment, the operating component includes: a first operating member and an operating return member. The first operating member is movably disposed on the seat body and is drivingly connected to the engaging mechanism. The operating return member is disposed between the first operating member and the seat body. The operating return member is adapted to bias the first operating member to move the first operating member towards the initial position.

[0045] In one embodiment, the engaging mechanism includes an engaging rod, a driving member, and a plurality of engaging recesses. The driving member is pivotally disposed on one of the mating rib and the base. The driving member has a first driving end and a second driving end. The first driving end is drivingly connected to the first operating member, and the second driving end is connected to the engaging rod. The plurality of engaging recesses are disposed on the other of the mating rib and the base. Wherein, when the engaging mechanism is in the locking position, the engaging rod engages with one of the plurality of engaging recesses to restrict the mating rib from sliding relative to the base. When the engaging mechanism is in the unlocking position, the engaging rod disengages from the plurality of engaging recesses to allow the seat assembly to slide relative to the base.

[0046] In one embodiment, the driving member is pivotally disposed on the mating rib. The mating rib is provided with a limiting groove, and at least one end of the engaging rod passes through the limiting groove.

[0047] In one embodiment, a second connection hole is provided at the second driving end portion, and the engaging rod passes through the second connection hole and extends into the limiting groove. The second connection hole is elongated, the limiting groove is elongated, and the extending direction of the second connection hole intersects with the extending direction of the limiting groove.

[0048] In one embodiment, the engaging mechanism further includes an engaging reset member. The driving member is pivotally arranged on the fitting rib, and the engaging reset member is arranged between the fitting rib and the driving member. The engaging reset member is adapted to bias the driving member to rotate the engaging mechanism in the direction towards the locking position.

[0049] In one embodiment, the operating assembly includes a first operating member movably arranged on the seat body. The first operating member has an operating driving portion provided with a driving groove extending along the moving direction of the first operating member. The first driving end portion is inserted into the driving groove. The operating driving portion is located inside the seat body, and the seat body is provided with a penetrating hole. The first driving end portion extends into the seat body through the penetrating hole and is inserted into the driving groove.

[0050] In one embodiment, the driving member includes a driving main body and is configured with a plurality of first driving end portions. The driving main body includes a first driving connection portion respectively connected to the plurality of first driving end portions.

[0051] In one embodiment, the driving main body further includes a second driving connection portion. The second driving connection portion is closer to the engaging rod than the first driving connection portion, and an operating hole is formed between the second driving connection portion and the first driving connection portion. The second driving end portion is connected to the second driving connection portion.

[0052] According to another aspect of the present application, a children's carrier is further provided. The children's carrier includes a base, a seat assembly, and the tilt adjustment device in any of the above embodiments.

[0053] In one embodiment, the seat assembly includes a backrest assembly. The backrest assembly includes a backrest main body and a fitting rib connected to the backrest main body. The base is provided with a fitting member. One of the fitting rib and the fitting member is provided with a fitting concave portion, and the other of the fitting rib and the fitting member is provided with a fitting convex portion. The fitting convex portion is slidably connected in the fitting concave portion, so that the fitting rib is slidably arranged on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0055] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0056] In addition, the drawings are not drawn to a scale of 1:1, and the relative sizes of the respective elements are only drawn illustratively in the drawings and not necessarily to the actual scale. In the drawings:

[0057] Figure 1 A perspective view of a child safety seat according to an embodiment of the present application is shown;

[0058] Figure 2 Shown Figure 1 The right view of the child safety seat in;

[0059] Figure 3 Shown Figure 1 The front view of the child safety seat in;

[0060] Figure 4 Shown Figure 1 The front view of the child safety seat in, where the seat belt is removed;

[0061] Figure 5 Shown Figure 1 The perspective view and partial enlarged view of the backrest assembly in;

[0062] Figure 6 Shown Figure 2 The sectional view and partial enlarged view of the child safety seat at U1-U1 in;

[0063] Figure 7 Shown Figure 3 The sectional view and partial enlarged view of the child safety seat at U2-U2 in;

[0064] Figure 8 Shown Figure 4 The sectional view and partial enlarged view of the child safety seat at U3-U3 in, where the connecting mechanism is in the locked state;

[0065] Figure 9 Shown Figure 4 The sectional view and partial enlarged view of the child safety seat at U3-U3 in, where the connecting mechanism is in the unlocked state;

[0066] Figure 10 A perspective view of a child booster seat according to an embodiment of the present application is shown;

[0067] Figure 11 Shown Figure 10Stereogram and partial enlarged view of the child booster seat in another perspective;

[0068] Figure 12 Show Figure 10 Stereogram and partial enlarged view of the child booster seat in the [reference] after removing the first seat shell;

[0069] Figure 13 Stereogram of the elastic member according to some embodiments of the present application;

[0070] Figure 14 Show Figure 13 Front view of the elastic member in the [reference];

[0071] Figure 15 Stereogram of the elastic member according to another embodiment of the present application;

[0072] Figure 16 Stereogram and partial enlarged view of the child booster seat in another embodiment of the present application after removing the first seat shell;

[0073] Figure 17 Stereogram and partial enlarged view of the child booster seat in an embodiment of the present application when the cover is in the open state;

[0074] Figure 18 Show Figure 10 Cross-sectional view and partial enlarged view of the child booster seat in the [reference] at U4 - U4;

[0075] Figure 19 Stereogram of the child safety seat in another embodiment of the present application;

[0076] Figure 20 Show Figure 19 Top view of the child safety seat in the [reference];

[0077] Figure 21 Show Figure 19 Cross-sectional view of the child safety seat in the [reference] along U5 - U5 and its partial enlarged view;

[0078] Figure 22 Show Figure 19 Cross-sectional view of the child safety seat in the [reference] along U6 - U6 and its partial enlarged view;

[0079] Figure 23 Show Figure 19 Stereogram of the first operating member of the child safety seat in the [reference];

[0080] Figure 24 Show Figure 19 Stereogram and partial enlarged view of the child safety seat in the [reference] after removing the child booster seat;

[0081] Figure 25 Shows Figure 19 The three-dimensional view and partial enlarged view of the child safety seat in after removing the child booster seat and the outer housing;

[0082] Figure 26 Shows Figure 19 The three-dimensional view and partial enlarged view of the child safety seat in after removing the child booster seat and the inner housing;

[0083] Figure 27 Shows Figure 19 The three-dimensional view of the child booster seat of the child safety seat in , wherein the child booster seat is provided with a connecting belt assembly and the cover is in a closed state;

[0084] Figure 28 Shows Figure 27 The three-dimensional view and partial enlarged view of the child booster seat in from another perspective, wherein the cover is in an open state;

[0085] Figure 29 Shows Figure 27 The three-dimensional view of the child booster seat in from another perspective, wherein the child booster seat is not provided with a connecting belt assembly;

[0086] Figure 30 Shows Figure 29 The three-dimensional view of the child booster seat in after removing a part of the second seat housing;

[0087] Figure 31 Shows Figure 29 The three-dimensional view of the child booster seat in from another perspective, wherein the cover is in an open state;

[0088] Figure 32 Shows Figure 31 The three-dimensional view of the child booster seat in after removing the upper cover, wherein the cover is in a closed state;

[0089] Figure 33 Shows Figure 27 The sectional view of the child booster seat in along U7-U7;

[0090] Figure 34 Shows Figure 27 The exploded schematic view of the child booster seat in , wherein the child booster seat is not provided with a connecting belt assembly;

[0091] Figure 35 Shows the three-dimensional view of the child safety seat according to another embodiment of the present application;

[0092] Figure 36 Shows Figure 35 The exploded schematic view of the child safety seat in , wherein the seat belt is removed;

[0093] Figure 37 Show Figure 36 An enlarged view of location A in;

[0094] Figure 38 Show Figure 35 The top view of the child safety seat in after removing part of the seat belt;

[0095] Figure 39 Show Figure 38 The cross-sectional view of the child safety seat in along U8 - U8;

[0096] Figure 40 Show Figure 36 The perspective view of the child safety seat in after removing the child booster seat and the outer housing;

[0097] Figure 41 Show Figure 35 The perspective view of the outer housing of the child safety seat in;

[0098] Figure 42 Show Figure 36 The perspective view of the child booster seat in from another angle, where the cover is in the closed state;

[0099] Figure 43 Show Figure 36 The perspective view of the child booster seat in from another angle, where the cover is in the open state;

[0100] Figure 44 Show Figure 35 The perspective view of the opening and closing release member of the child safety seat in;

[0101] Figure 45 Show Figure 42 The cross-sectional view of the child booster seat in along U9 - U9;

[0102] Figure 46 Show Figure 35 The perspective view of the child safety seat in after removing the child booster seat;

[0103] Figure 47 Show Figure 42 The perspective view of the child booster seat in from another angle;

[0104] Figure 48 Show Figure 38 The cross-sectional view of the child safety seat in along U10 - U10;

[0105] Figure 49 Show Figure 35 The perspective view of the child safety seat in after configuring the seat fabric pad, where the first fabric pad is in the lifted position; and

[0106] Figure 50 Show Figure 35 A perspective view of the child safety seat with the seat fabric pad configured, where the first fabric pad is in the covering position.

[0107] Explanation of reference numerals

[0108] 100, child safety seat,

[0109] 10, seat assembly,

[0110] 1, seat body,

[0111] 2, backrest assembly,

[0112] 21, backrest main body, 211, first connection channel, 212, second connection channel,

[0113] 22, mating rib, 221, lower end face, 222, second engaging slope, 223, abutting portion, 225, mating recess, 225a, rear mating recess, 225b, front mating recess, 226, rib main body, 2261, first rib segment, 2262, second rib segment, 227, rib housing, 227a, outer housing, 227b, inner housing, 224, limiting groove,

[0114] 23, cross bar, 231, upper side face, 232, lower side face, 233, rear side face, 234, front side face,

[0115] 3, child booster seat, 301, first seat cushion housing, 302, second seat cushion housing, 303, accommodation cavity,

[0116] 31, seat cushion main body, 31a, upper surface, 31b, lower surface, 31c, front end, 31d, rear end, 3101, rotation recess, 3102, covering recess, 3103, operation notch, 311, mating groove, 3111, first groove portion, 3112, second groove portion, 312, accommodation groove, 313, channel, 3131, second limiting portion, 3132, first limiting portion, 314, storage recess, 315, engaging hole, 316, operation recess, 317, guiding recess, 318, shoulder strap adjustment hole, 319, engaging slot, 3191, first engaging slope,

[0117] 32, connecting mechanism,

[0118] 321, locking member, 3211, hook portion, 3212, wedge-shaped surface, 3213, driving portion, 3214, pivot portion,

[0119] 322, unlocking member, 3221, pivot recess, 3222, top portion, 3223, side portion, 3224, handle portion,

[0120] 323. Elastic member, 323a. First elastic member, 3233. First end, 3234. Second end, 3235. Third end, 323b. Second elastic member, 323c. Third elastic member,

[0121] 324. Pin shaft,

[0122] 33. Cover, 33a. Upper cover, 33b. Lower cover, 33c. Accommodating recess, 33d. First cover part, 33e. Second cover part, 331. First side, 332. Second side, 3524. First limiting part, 3525. Limiting hook part, 3526. Second boss, 353. Adjusting and resetting member; 333. Engaging part, 3331. Elastic arm part, 3332. Elastic convex part, 3333. Operating end, 334. Operating port, 335. Abutting rib, 336. Passing channel, 3361. Second limiting part, 3362. First boss,

[0123] 34. Armrest part, 34a. First armrest part, 34b. Second armrest part, 341. Inner side surface, 342. Outer side surface, 343. Cup holder recess, 3431. Side wall of cup holder recess, 3431a. Inner side wall of cup holder recess, 3432. Bottom wall of cup holder recess, 344. Entering groove, 3441. First groove section, 3442. Second groove section, 345. Limiting hole, 346. First connection hole, 347. Deformation hole, 348. Second sleeve hole, 349. Limiting convex part,

[0124] 35. Adjusting mechanism,

[0125] 351. Seat belt locking assembly, 3511. Locking seat, 3512. Locking block,

[0126] 352. Seat belt adjusting and unlocking member, 3521. Pivoting shaft, 3522. Driving end, 3523. Pressing recess, 3523a. Operating section,

[0127] 36. First sleeve hole, 37. Hip belt hole, 38. Storage cup holder, 381. Connecting convex, 3811. Connecting part, 3812. Locking part, 382. Connecting column, 383. Storage cup,

[0128] 39. Opening and closing mechanism, 391. Opening and closing unlocking member, 391a. Unlocking push button, 391b. Engaging pin, 3911. Engaging end, 3912. Unlocking part, 3913. Resetting member recess, 392. Opening and closing resetting member, 3914. Operating recess, 3915. Limiting part,

[0129] 4. Seat belt, 41. Hip belt, 42. Adjusting belt, 43. Shoulder belt, 433. Shoulder belt section, 434. Waist belt section, 44. First connection buckle, 45. Second connection buckle,

[0130] 5. Tilt adjustment device

[0131] 501. Connecting pin

[0132] 51. Engaging mechanism, 511. Engaging rod, 512. Driving member, 5121. First driving end, 5122. Second driving end, 5123. Second connecting hole, 5124. Limiting hook portion, 5125. Driving body, 51251. First driving connection portion, 51252. Second driving connection portion, 51253. Operation hole, 513. Engaging reset member

[0133] 520. Operation assembly

[0134] 52. First operating member, 521. Operating portion, 522. Operating driving portion, 523. Driving groove

[0135] 53. Fastening member, 531. Engaging recess

[0136] 54. Operating reset member, 56. Second operating member

[0137] 8. Seat cloth pad, 81. Second cloth pad, 811. Avoidance recess, 82. First cloth pad, 821. Hip belt perforation, 822. Adjustment opening, 823. Pivoting end, 833. First mating portion, 337. Second mating portion, 831. First connecting member, 832. Second connecting member

[0138] 9. Base, 98. Fitting member, 981. Fitting convex portion

[0139] 99. Connecting groove

[0140] X. Pivoting axis of the driving member, S. Pivoting axis of the second cloth pad, D1. First direction, D2. Second direction, D3. Third direction, R1. Rotation direction Detailed implementation manners

[0141] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0142] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0143] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0144] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0145] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0146] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0147] The present application provides a child carrier, where the child carrier is, for example, a child safety seat, a baby stroller, etc. Hereinafter, the child safety seat will be taken as an example for illustration. The child safety seat can be fixed on the vehicle seat through structures such as its own configured ISOFIX connectors, upper pull belts, etc., or fixed on the vehicle seat through the vehicle seat belts configured by the vehicle. Among them, the child safety seat can be installed forward on the vehicle seat or backward on the vehicle seat.

[0148] Figures 1 to 4 A perspective view of a child safety seat 100 provided according to an embodiment of the present application is shown. Figure 19 A perspective view of a child safety seat 100 according to another embodiment of the present application is shown. Figure 35 A perspective view of a child safety seat 100 according to still another embodiment of the present application is shown.

[0149] As Figures 1 to 4 shown, in one embodiment, the child safety seat 100 may include a seat assembly 10. The seat assembly 10 includes a backrest assembly 2 and a seat body 1, and the seat body 1 is, for example, a child booster seat 3 provided according to some embodiments of the present application. The child booster seat 3 will be described together while the child safety seat 100 is being described below.

[0150] As Figures 1 to 4As shown, in one embodiment, the child booster seat 3 is detachably connected to the backrest assembly 2, that is, the seat body 1 is detachably connected to the backrest assembly 2. The child booster seat 3 can be either connected to the backrest assembly 2 for use (the first usage mode) or detached from the backrest assembly 2 for independent use (the second usage mode). In the first usage mode, the child booster seat 3 and the backrest assembly 2 jointly define the seating space of the child safety seat 100, and the child is restricted within the seating space by the seat belt 4. The first usage mode is suitable for children in a relatively young age group (such as one to four years old), and the child safety seat 100 in this mode can be used forward or backward. In the second usage mode, the child booster seat 3 and the backrest of the vehicle seat jointly define the seating space of the child booster seat, and the child can be restricted within the seating space by the vehicle seat belt. The second usage mode is suitable for children in a relatively older age group (such as four to twelve years old), and the child booster seat 3 in this mode can be used forward. By providing the detachable child booster seat 3, the child safety seat 100 has multiple usage modes, thus meeting the usage requirements of children of different age groups, and further improving the utilization rate of the child safety seat 100.

[0151] Continuing to refer to Figures 1 to 4 , in one embodiment, the child safety seat 100 further includes a base 9 and a tilt adjustment device 5. In this embodiment, the backrest assembly 2 is slidably disposed on the base 9. The backrest assembly 2 includes a backrest main body 21, and the angle θ of the backrest main body 21 relative to the base 9 can be adjusted by adjusting the tilt adjustment device 5. Among them, as Figure 2 and Figure 22 shown, the tilt angle θ can be the angle between the plane where the backrest main body 21 is located and the plane of the contact surface between the base 9 and the vehicle seat. In some other embodiments, the child safety seat 100 does not include the base 9, and the child safety seat 100 does not provide the tilt adjustment device 5, and this application does not make any restrictions on this.

[0152] As Figure 5As shown, in one embodiment, the backrest assembly 2 further includes a mating rib 22 and a crossbar 23. One end of the mating rib 22 is connected to the backrest main body 21, and the other end of the mating rib 22 is connected to the crossbar 23. The lower end surface 221 of the mating rib 22 is arc-shaped. The base 9 is provided with a connecting groove 99. The lower end surface 221 of the mating rib 22 is at least partially received in the connecting groove 99 and can move along the connecting groove 99. When the mating rib 22 slides along the connecting groove 99, the inclination angle of the backrest main body 21 relative to the base 9 changes. The connecting groove 99 extends in a direction substantially parallel to the first direction D1 (i.e., the front-back direction), and the mating rib 22 extends in a direction substantially parallel to the first direction D1. In this embodiment, the backrest assembly 2 is configured with two mating ribs 22, and the two mating ribs 22 are substantially parallel to each other. The two ends of the crossbar 23 are respectively connected to the two mating ribs 22. Among them, the two mating ribs 22 and the crossbar 23 are connected into a substantially U-shaped structure. The crossbar 23 is detachably connected to the mating rib 22, for example, by a threaded connector or the like.

[0153] As Figure 5 and Figure 7 shown, in one embodiment, the tilt adjustment device 5 is connected between the base 9 and the mating rib 22. The tilt adjustment device 5 has a locked state and an unlocked state. When the tilt adjustment device 5 is in the unlocked state, the mating rib 22 of the backrest assembly 2 can move along the connecting groove 99 of the base 9 to adjust the inclination angle of the backrest main body 21 relative to the base 9; when the tilt adjustment device 5 is in the locked state, the mating rib 22 is restricted from moving along the connecting groove 99 to lock the inclination angle of the backrest main body 21 relative to the base 9. Regarding the specific structure of the tilt adjustment device 5, no detailed description is given in this embodiment.

[0154] Figure 19 Fig. shows a schematic structural diagram of a child safety seat 100 according to another embodiment of the present application.

[0155] As Figures 19 to 22 shown, in another embodiment, the child safety seat 100 includes a seat assembly 10, a base 9, and a tilt adjustment device 5. The seat assembly 10 includes a backrest assembly 2 and a seat body 1. Among them, the backrest assembly 2 includes a backrest main body 21, a mating rib 22, and a crossbar 23. The backrest assembly 2 is slidably disposed on the base 9 through the mating rib 22, and the angle θ of the seat assembly 10 relative to the base 9 can be adjusted by adjusting the tilt adjustment device 5. The tilt adjustment device 5 in this embodiment will be described in detail later. In this embodiment, the seat body 1 is detachably connected to the backrest assembly 2, and the seat body 1 is, for example, the child booster seat 3 provided by the embodiments of the present application.

[0156] In an alternative embodiment, the seat body 1 and the backrest assembly 2 are an integral part. An exemplary seat assembly 10 is a baby carrier. The seat body 1 and the backrest assembly 2 are integrally formed of polyethylene material. Two connecting rods are provided at the lower part of the baby carrier and are detachably connected to the base 9 through the connecting rods and can slide back and forth relative to the base 9. In yet another alternative embodiment, the seat body 1 is slidably connected to the base 9. When the seat body 1 slides relative to the base 9, the angle between the plane where the seat body 1 is located and the plane where the contact surface between the base 9 and the vehicle seat is located changes with the position of the seat body 1.

[0157] As Figures 24 to 26 shown, in another embodiment, the backrest assembly 2 has two mating ribs 22 extending generally in the front-rear direction, and the two mating ribs 22 are generally parallel to each other. Each mating rib 22 is connected to the backrest main body 21 and extends away from the backrest main body 21 in the front-rear direction. Each mating rib 22 can be slidably connected to the base 9 in the front-rear direction to drive the backrest assembly 2 to move relative to the base 9, thereby changing the inclination angle θ between the backrest main body 21 of the backrest assembly 2 and the base 9. The two mating ribs 22 can both slide relative to the base 9 and can be stably supported on the base 9. A cross bar 23 is connected to one end of the two mating ribs 22 away from the backrest main body 21. In this embodiment, the cross bar 23 is a complete rod body. In some other embodiments, the cross bar 23 is two discontinuous rod bodies, and the two rod bodies are respectively connected to one of the two mating ribs 22, and the two rod bodies are arranged oppositely with a gap therebetween.

[0158] For ease of description, the mating rib 22 on the left side will be taken as an example for illustration below. It should be noted that the mating rib 22 on the left side refers to the mating rib 22 located on the left side of the child when the child is sitting in the child safety seat 100 installed forward on the vehicle seat.

[0159] As Figure 24 and Figure 26 shown, in another embodiment, the mating rib 22 includes a rib main body 226 and a rib housing 227 at least partially covering the rib main body 226, and the rib housing 227 is detachably connected to the rib main body 226. The rib main body 22 has an arc-shaped lower end surface 221. One end of the rib main body 226 is connected to the backrest main body 21, and the other end extends forward.

[0160] Among them, the base 9 is provided with a fitting member 98 that slidably cooperates with the fitting rib 22. One of the fitting rib 22 and the fitting member 98 is provided with a fitting recess 225, and the other of the fitting rib 22 and the fitting member 98 is provided with a fitting protrusion 981. The fitting recess 225 is arc-shaped and extends in the front-rear direction. The fitting protrusion 981 is slidably connected within the fitting recess 225. Through the sliding connection between the fitting protrusion 981 and the fitting recess 225, the seat assembly 10 is movably connected to the base 9. When the seat assembly 10 slides relative to the base 9 in the front-rear direction, the adjustment of the angle θ between the backrest assembly 2 and the base 9 changes accordingly. Refer to Figure 25 and Figure 26 , in this embodiment, the fitting rib 22 is provided with a fitting recess 225, and the fitting member 98 is provided with a fitting protrusion 981. The fitting member 98 includes a rear-end fitting member 98a and a front-end fitting member 98b. The fitting recess 225 includes a rear-end fitting recess 225a that is inserted and cooperates with the fitting protrusion 981 of the rear-end fitting member 98a and a front-end fitting recess 225b that is inserted and cooperates with the fitting protrusion 981 of the front-end fitting member 98b. Among them, the opening of the rear-end fitting recess 225a faces inward (that is, faces the other fitting rib 22 among the two fitting ribs 22), and the opening of the front-end fitting recess 225b faces outward (that is, faces away from the other fitting rib 22 among the two fitting ribs 22). Both the rear-end fitting recess 225a and the front-end fitting recess 225b are arc-shaped, and the centers of the rear-end fitting recess 225a and the front-end fitting recess 225 are overlapped, so that the seat assembly 10 can pivot around the same pivot point or the same pivot axis when moving on the base 9, thereby making the angle adjustment of the backrest assembly 2 relative to the base 9 more convenient, reliable and smooth to slide.

[0161] Such as Figure 25 and Figure 26As shown, in another embodiment, the rib main body 226 is generally L-shaped or J-shaped. The rib main body 226 is, for example, a hollow square tube structure. The rib main body 226 includes a first rib segment 2261 and a second rib segment 2262. The extending direction of the second rib segment 2262 is the same as the extending direction of the backrest main body 21. The second rib segment 2262 extends substantially in the up-and-down direction and is connected to the backrest main body 21. The first rib segment 2261 extends substantially in the front-and-back direction. The rib housing 227 includes an inner housing 227b and an outer housing 227a that are snap-fitted to each other. The first rib segment 2261 of the rib main body 226 is received between the inner housing 227b and the outer housing 227a. Among them, at least a part of the inner housing 227b is located between the rib main bodies 226 of the two mating ribs 22, and at least a part of the outer housing 227a is located on the side of the rib main body 226 away from the inner housing 227b. In this embodiment, the inner housing 227b and the outer housing 227a are detachably connected. Abuttment portions 223 are provided on both the inner housing 227b and the outer housing 227a. In other embodiments, the abutment portion 223 may also be provided on only one of the inner housing 227b and the outer housing 227a.

[0162] Continuing to refer to Figure 25 and Figure 26 , the rib housing 227 is provided with a rear-end mating recess 225a and a front-end mating recess 225b. Both the front-end mating recess 225b and the rear-end mating recess 225a are located below the rib main body 226, that is, it is equivalent to that both the front-end mating recess 225b and the rear-end mating recess 225a are located between the rib main body 226 and the base 9. Among them, as Figure 25 shown, the front-end mating recess 225b is provided on the inner housing 227b, and the opening of the front-end mating recess 225b faces the outer housing 227b. As Figure 26 shown, the rear-end mating recess 225a is provided on the outer housing 227a, and the opening of the rear-end mating recess 225a faces the inner housing 227b. Of course, in another alternative embodiment, it may be that the front-end mating recess 225b is provided on the outer housing 227a and the rear-end mating recess 225a is provided on the inner housing 227b, and the present application does not limit this.

[0163] As Figure 24 and Figure 25 shown, in some embodiments, the backrest main body 21 is provided with a storage space 213, and the storage space 213 can be closed or opened. The storage space 213 can be used to store items. For example, it can be used to store a five-direction buckle set. When the user no longer needs to use the buckle set on the child safety seat 100, the buckle set can be put into the storage space 213 together with a part of the webbing connected to the buckle set, and the other part of the webbing can still be exposed outside the storage space 213. Thus, it is not necessary to remove the buckle and the webbing together.

[0164] As Figures 1 to 3and Figure 7 As shown, in one embodiment, the child safety seat 100 is further provided with a seat belt 4 for fixing a child on the child safety seat 100. The seat belt 4 is, for example, a five-point seat belt. The seat belt 4 includes a crotch strap 41, shoulder straps 43, an adjustment strap 42, a first connecting buckle 44, and a second connecting buckle 45 adapted to engage with the first connecting buckle 44. Among them, the first connecting buckle 44 is, for example, a male buckle, and the second connecting buckle 45 is, for example, a female buckle. The first connecting buckle 44 is sleeved on the shoulder strap 43 and can slide along the shoulder strap 43. The first connecting buckle 44 divides the shoulder strap 43 into a waist belt section 434 and a shoulder strap section 433. By adjusting the position of the first connecting buckle 44 on the shoulder strap 43, the lengths of the shoulder strap section 433 and the waist belt section 434 can be adjusted without changing the effective length of the shoulder strap 43. The backrest main body 21 is provided with a first connecting channel 211 adapted for the shoulder strap 43 to pass through. The waist belt section 434 of the shoulder strap 43 is connected to the mating rib 22, and the shoulder strap section 433 of the shoulder strap 43 is connected to the adjustment strap 42 through the first connecting channel 211. The backrest main body 21 is further provided with a second connecting channel 212 adapted for the adjustment strap 42 to pass through. One end of the adjustment strap 42 is connected to the shoulder strap section 433, and the other end of the adjustment strap 42 passes through the second connecting channel 212 and extends forward of the child safety seat 100. In this way, the effective length of the shoulder strap 43 can be conveniently adjusted by operating the adjustment strap 42. It should be noted that the effective length of the shoulder strap 43 refers to the length of the shoulder strap 43 from the mating rib 22 to the first connecting channel 211, that is, the sum of the effective lengths of the shoulder strap section 433 and the waist belt section 434.

[0165] Referring to Figure 1 、 Figure 3 and Figure 7 , the number of the shoulder straps 43 is two, and each shoulder strap 43 is sleeved with a first connecting buckle 44. The waist belt section 434 of each shoulder strap 43 is connected to the corresponding mating rib 22, and the shoulder strap sections 433 of the two shoulder straps 43 are connected to the same adjustment strap 42. The crotch strap 41 is connected to the seat cushion main body 31, and the second connecting buckle 45 is provided on the crotch strap 41. By connecting the two first connecting buckles 44 to the second connecting buckle 45 respectively, the child sitting can be limited on the child safety seat.

[0166] Figures 6 to 7 respectively show cross-sectional views of the child safety seat 100 provided according to an embodiment of the present application at U1-U1 and U2-U2; Figure 8 shows a cross-sectional view of the child safety seat 100 provided according to an embodiment of the present application at U3-U3, where the connecting mechanism 32 is in a locked state; Figure 9 shows a cross-sectional view of the child safety seat 100 provided according to an embodiment of the present application at U3-U3, where the connecting mechanism 32 is in an unlocked state. Figures 10 to 12Shows a perspective view of the child booster seat 3 provided according to an embodiment of the present application. The child booster seat 3 can be used alone.

[0167] As Figure 10 shown, in one embodiment, the child booster seat 3 includes a seat cushion main body 31 and two armrest portions 34 provided on both sides of the seat cushion main body 31. A first set hole 36 is formed between each of the two armrest portions 34 and the seat cushion main body 31. The first set hole 36 is adapted for an automobile seat belt to pass through, so as to allow the automobile seat belt to pass through the first set hole 36 to fix the child booster seat 3 on an automobile seat. Thus, when used in the second usage mode (i.e., when the child booster seat 3 is used alone), the child booster seat 3 can be fixed on the automobile seat by using an automobile seat belt (not shown), and at the same time, the child sitting on it can be limited to the child booster seat 3. When in the first usage mode (refer to Figures 1 to 4 ), the child safety seat 100 can also be fixed on the automobile seat by using an automobile seat belt.

[0168] As Figure 10 and Figure 11 shown, the seat cushion main body 31 is fixedly connected to the two armrest portions 34. The two armrest portions 34 have inner side surfaces 341 facing each other and outer side surfaces 342 facing away from each other. The seat cushion main body 31 has an upper surface 31a and a lower surface 31b. The upper surface 31a is adapted for a child to sit on. The lower surface 31b is adapted to be placed on an automobile seat and is adapted to be placed on the base 9 and connected to the fitting rib 22 of the backrest assembly 2. The child booster seat 3 includes a first seat cushion shell 301 and a second seat cushion shell 302. The first seat cushion shell 301 and the second seat cushion shell 302 enclose to form a receiving cavity 303 (refer to Figure 17 ). The first seat cushion shell 301 forms the upper surface 31a of the seat cushion main body 31 and the inner side surfaces 341 of the two armrest portions 34. The second seat cushion shell 302 forms the lower surface 31b of the seat cushion main body 31 and the outer side surfaces 342 of the two armrest portions 34. Among them, the first seat cushion shell 301 is an integrally formed member.

[0169] As Figure 17 , Figure 18 , Figure 27 and Figure 28 shown, in some embodiments, a storage recess 314 adapted for storing items (such as a pull-up belt) is provided on the upper surface 31a of the seat cushion main body 31, and a cover body 33 is rotatably and openably provided at the opening of the storage recess 314. Among them, the cover body 33 has an open state (refer to 17 and Figure 28 ) and a closed state (refer to Figure 18 and Figure 27)。An opening and closing mechanism 39 is provided on the cover body 33. The seat cushion main body 31 has a connecting portion and a covering portion. The cover body 33 is pivotally connected to the connecting portion and can be locked to the covering portion through the opening and closing mechanism 39, so as to lock the cover body 33 in the closed state.

[0170] As Figure 17 and Figure 18 shown, in an embodiment, one side of the cover body 33 is the first side 331 and is pivotally connected to the connecting portion. Specifically, the cover body 33 is pivotally connected to a side wall of the storage recess 314 (that is, a side wall of the storage recess 314 adjacent to the first side 331 forms the connecting portion). The side of the cover body 33 opposite to the first side 331 is the second side 332, and a engaging portion 333 is provided on the second side 332. The engaging portion 333 can be engaged with the covering portion, wherein the engaging portion 333 is formed as the opening and closing mechanism 39. Refer to Figure 17 and Figure 18 , the engaging portion 333 includes an elastic arm portion 3331 and an elastic convex portion 3332 provided on the elastic arm portion 3331. The elastic arm portion 3331 has an operable end 3333. In this embodiment, the elastic arm portion 3331 is generally U-shaped or V-shaped. A engaging hole 315 is provided on the covering portion of the seat cushion main body 31, and the elastic convex portion 3332 can be engaged with the engaging hole 315. Among them, the engaging hole 315 is provided on the bottom wall of the storage recess 314 (that is, the bottom wall of the storage recess 314 forms the covering portion), and the elastic convex portion 3332 can pass through the engaging hole 315 and be engaged with the end face of the engaging hole 315. In some other embodiments not shown, the engaging hole 315 can also be provided on the side wall of the storage recess 314 (that is, a side wall of the storage recess 314 adjacent to the second side 332 forms the covering portion).

[0171] As Figure 17 and Figure 18 shown, an operation recess 316 is further provided on the upper surface 31a of the seat cushion main body 31, and the operation recess 316 is communicated with the storage recess 314. When the elastic convex portion 3332 of the engaging portion 333 is engaged with the engaging hole 315, the engaging portion 333 is at least partially received in the operation recess 316 to allow the operation end 3333 to be pushed through the operation recess 316, so that the elastic convex portion 3332 is disengaged from the engaging hole 315. In some embodiments not shown, the engaging hole 315 can be provided on the bottom wall of the operation recess 316, and this application does not limit this.

[0172] Figures 31 to 32 shows a perspective view of the child booster seat 3 provided according to another embodiment of the present application, wherein, Figure 31 the cover body 33 in Figure 32 is in the closed state,

[0173] As Figures 31 to 33As shown, in another embodiment, the cover 33 is provided with a receiving recess 33c, which may be a groove, a cavity, etc. provided on the cover 33. Among them, the cover 33 includes an upper cover 33a and a lower cover 33b, and the upper cover 33a and the lower cover 33b jointly form a receiving cavity, which is formed as the receiving recess 33c. At least a part of the opening and closing mechanism 39 is movably provided in the receiving recess 33c. Among them, the seat cushion main body 31 is provided with a rotating shaft 3104, and the rotating shaft 3104 is connected between a pair of side walls of the storage recess 314. The cover 33 is pivotally connected to the rotating shaft 3104. Specifically, the lower cover 33b of the cover 33 is pivotally connected to the rotating shaft 3104. The rotating shaft 3104 is formed as a connecting part of the seat cushion main body 31. The covering part is a covering recess 3102 that is recessed downward from the upper surface 31a of the seat cushion main body 31. The covering recess 3102 communicates with the storage recess 314, and a stepped portion is formed at the connection between the two. Among them, the bottom wall of the covering recess 3102 is higher than the bottom wall of the storage recess 314, and the covering recess 3102 is located in front of the storage recess 314. The cover 33 includes a first cover portion 33d covering the storage recess 314 and a second cover portion 33e covering the covering part. One side of the first cover portion 33d away from the second cover portion 33e forms a first side 331 of the cover 33, and the first side 331 is pivotally connected to the side wall of the storage recess 314. One side of the second cover portion 33e away from the first cover portion 33d forms a second side 332 of the cover 33, and the second side 332 can be locked with the covering part through the opening and closing mechanism 39.

[0174] As Figure 31 and Figure 33 shown, in another embodiment, the opening and closing mechanism 39 includes an opening and closing unlocking member 391. The opening and closing unlocking member 391 is movably provided on the cover 33 and has a first position and a second position. The opening and closing unlocking member 391 has an engaging end 3911 and an operable unlocking portion 3912. Referring to Figure 33 , when the opening and closing unlocking member 391 is in the first position, the engaging end 3911 can be engaged with the engaging hole 315; referring to Figure 31, when the opening and unlocking member 391 is in the second position, the engaging end portion 3911 is separated from the engaging hole 315. Specifically, the engaging hole 315 is provided on the side wall of the covering recess 3102. More specifically, the engaging hole 315 is provided on the side wall of the covering recess 3102 opposite to the first side 331 of the cover body 33, and the engaging end portion 3911 can at least partially extend out of the second side 332 of the cover body 33 and engage with the engaging hole 315. Among them, the opening and unlocking member 391 is movably provided in the accommodating recess 33c. The upper cover body 33a (that is, the upper surface of the cover body 33) is provided with an operation port 334 communicating with the accommodating recess 33c. When the opening and unlocking member 391 is in the first position, the unlocking portion 3912 faces the operation port 334, so that the unlocking portion 3912 can be operated through the operation port 334 to move the unlocking member 391; when the opening and unlocking member 391 is in the second position, the engaging end portion 3911 extends out of the accommodating recess 33c to engage with the engaging hole 315. The rotation direction of the unlocking member 322 when unlocking is opposite to the rotation direction of the cover body 33 when opening. Taking Figure 31 as an example, when the unlocking member 322 rotates counterclockwise to unlock, the cover body 33 rotates clockwise to open the cover body. Thus, it can be avoided that the cover body 33 is accidentally opened when the unlocking member 322 unlocks.

[0175] With reference to Figure 32 , the opening and closing mechanism 39 further includes an opening and closing reset member 392. The opening and closing reset member 392 is provided between the cover body 33 and the opening and unlocking member 391, and the opening and closing reset member 392 abuts against the opening and unlocking member 391 to bias the opening and unlocking member 391 to move towards the first position. The opening and closing reset member 392 is, for example, a compression spring. With further reference to Figure 33 , the upper cover body 33a is provided with an abutting rib 335, and the abutting rib 335 is located in the accommodating recess 33c. The opening and closing reset member 392 is accommodated in the accommodating recess 33c. One end of the opening and closing reset member 392 abuts against the opening and unlocking member 391, and the other end of the opening and closing reset member abuts against the abutting rib 335. Specifically, the opening and unlocking member 391 is provided with a reset member recess 3913, and the reset member recess 3913 is a groove with an opening facing the upper cover body 33a. The abutting rib 335 extends into the reset member recess 3913, and the opening and closing reset member 392 is accommodated in the reset member recess 3913 and abuts against the side wall of the reset member recess 3913. More specifically, the reset member recess 3913 is provided between the engaging end portion 3911 and the unlocking portion 3912 and in front of the unlocking portion 3912.

[0176] As Figure 31 and Figure 32As shown, the child booster seat 3 is provided with two opening and closing mechanisms 39, but is not limited thereto. The two opening and closing mechanisms 39 are symmetrically arranged on the cover 33. The moving directions of the opening and closing unlocking members 391 of the two opening and closing mechanisms 39 are substantially parallel to each other. Specifically, the moving direction of each opening and closing unlocking member 391 is substantially perpendicular to the second side 331 of the cover 33. That is to say, when the cover 33 is in the closed state, each opening and closing unlocking member 391 can move substantially in the front-rear direction.

[0177] Figures 42 to 43 Fig. shows a perspective view of the child booster seat 3 provided according to another embodiment of the present application. Among them, Figure 42 the cover 33 is in the closed state, Figure 43 and the cover 33 is in the open state.

[0178] As Figures 42 to 43 shown, the cover 33 is openably and closably arranged at the opening of the storage recess 314 through the opening and closing mechanism 39. The cross-section of the cover 33 is substantially rectangular, but is not limited thereto. The cover 33 has a left side and a right side arranged oppositely. The opening and closing mechanism 39 in this embodiment has at least the following differences from the opening and closing mechanism 39 in the embodiment shown above Figures 31 to 33 shown.

[0179] Combined with Figure 45 shown, the opening and closing mechanism 39 includes two opening and closing unlocking members 391 and an opening and closing reset member 392 arranged between the two opening and closing unlocking members 391. The two opening and closing unlocking members 391 are symmetrically distributed on the left side and the right side of the cover 33. The two opening and closing unlocking members 391 are movably arranged on the cover 33. When the two opening and closing unlocking members 391 move between the first position and the second position, the two opening and closing unlocking members 391 move in opposite directions respectively. In some alternative embodiments, the left side and the right side of the cover 33 are respectively provided with an opening and closing mechanism 39, and each opening and closing mechanism 39 includes an opening and closing unlocking member 391 and an opening and closing reset member 392 arranged between the opening and closing unlocking member 391 and the cover 33.

[0180] For the convenience of description, with reference to Figure 43 and Figure 45 , in this embodiment, an opening and closing unlocking member 391 arranged on the left side of the cover 33 is taken as an example for description.

[0181] As Figure 43 and Figure 45As shown, the moving direction of the opening and closing unlocking member 391 is substantially perpendicular to the left side of the cover body 33. That is to say, the moving direction of the opening and closing unlocking member 391 is substantially parallel to the first side 331 of the cover body 33. That is to say, the moving direction of the opening and closing unlocking member 391 is substantially parallel to the left-right direction. Correspondingly, the engaging hole 315 is provided on the side wall of the storage recess 314 or on the side wall of the covering recess 3102. The engaging end portion 3911 of the opening and closing unlocking member 391 can at least partially protrude from the left side of the cover body 33 so that the engaging end 3911 can engage with the engaging hole 315. Specifically, when the opening and closing unlocking member 391 is in the first position, the engaging end portion 3911 protrudes from the left side of the cover body 33 and can engage with the engaging hole 315; when the opening and closing unlocking member 391 is in the second position, the engaging end portion 3911 retracts into the cover body 33, so that the engaging end portion 3911 is separated from the engaging hole 315.

[0182] Combined with Figure 44 As shown, the opening and closing unlocking member 391 includes an unlocking push knob 391a and an engaging pin 391b inserted through the unlocking push knob 391a. The engaging pin 391b is fixedly or detachably connected to the unlocking push knob 391a. A part of the engaging pin 391b that penetrates through the unlocking push knob 391a forms the engaging end portion 3911. The opening and closing unlocking member 391 is provided with an operation recess 3914, and the operation recess 3914 is a groove with an upward opening provided on the unlocking push knob 391a. The side wall of the operation recess 3914 away from the engaging end portion 3911 forms at least a part of the unlocking portion 3912. When the opening and closing unlocking member 391 is in the first position, at least a part of the operation recess 3914 is aligned with the operation port 334 of the cover body 33, and at least a part of the operation recess 3914 is exposed from the operation port 334 to allow reaching into the groove 3912a through the operation port 334 and pushing against the operation recess 3914, so as to push the opening and closing unlocking member 391 to move to the second position. When the opening and closing unlocking member 391 is in the second position, at least a part of the operation recess 3914 is exposed from the operation port 334. The opening and closing unlocking member 391 is further provided with a limiting portion 3915. The limiting portion 3915 protrudes from the opening of the operation recess 3914 and can at least partially extend into the operation port 334. In this way, the movement stroke of the opening and closing unlocking member 391 can be limited by the blocking effect of the side wall of the operation port 334 on the limiting portion 3915 to prevent the unlocking portion 3912 from being moved out of alignment with the operation port 334, and the opening and closing unlocking member 391 can be operated by using the limiting portion 3915 and the unlocking portion 3912 together.

[0183] As Figure 45As shown, the opening and closing reset member 392 is, for example, a compression spring. The opening and closing reset member 392 is respectively abutted against the two opening and closing unlocking members 391 so that the two opening and closing unlocking members 391 respectively move to the first position. That is to say, when any one of the opening and closing unlocking members 391 is not operated, the unoperated opening and closing unlocking member 391 is maintained at the first position under the action of the opening and closing reset member 392. Specifically, each opening and closing unlocking member 391 is provided with a reset member recess 3913. The reset member recess 3913 is provided on the unlocking push knob 391a and is located on the side of the operation recess 3914 away from the engaging end portion 3911. A boss 3916 is provided in the reset member recess 3913. Both ends of the opening and closing reset member 392 are respectively received in the reset member recesses 3913 of the two opening and closing unlocking members 391, and both ends of the opening and closing reset member 392 are respectively sleeved on the corresponding bosses 3916. This can prevent the opening and closing reset member 392 from shifting during the elastic energy storage process. In this embodiment, when the two opening and closing unlocking members 391 respectively move from the first position to the second position, the two opening and closing unlocking members 391 respectively move in a direction approaching each other. Specifically, the opening and closing unlocking member 391 distributed on the left side of the cover body 33 moves to the right, and the opening and closing unlocking member 391 distributed on the right side of the cover body 33 moves to the left. In other words, when it is necessary to unlock the opening and closing mechanism 39, push or simultaneously press the opening and closing unlocking members 391 in a direction that makes the two opening and closing unlocking members 391 approach each other, so that the two opening and closing unlocking members 391 simultaneously move from the first position to the second position.

[0184] As Figure 10 , Figure 12 and Figure 34 shown, the child booster seat 3 further includes a storage cup holder 38. The storage cup holder 38 is detachably connected to at least one armrest portion 34. The cross-section of the storage cup holder 38 is generally circular, so as to facilitate placing objects such as water cups, and at the same time reduce the interference of the storage cup holder 38 on adjacent objects or adjacent passengers. At least one armrest portion 34 is provided with a cup holder recess 343 adapted to snap-fit the storage cup holder 38. In this embodiment, cup holder recesses 343 are provided on the outer side surfaces 342 of both armrest portions 34, and the number of storage cup holders 38 is one. The user can choose to snap-fit the storage cup holder 38 at one of the cup holder recesses 343 according to needs. In another embodiment, referring to Figure 1 , the number of storage cup holders 38 is two, and the two storage cup holders 38 are respectively snap-fitted at the two cup holder recesses 343. It should be understood that in other embodiments, the number of storage cup holders 38 can also be greater than two, and the number of cup holder recesses 343 can also be greater than two. This application does not limit this.

[0185] For ease of description, the following takes one of the armrest portions 34 and the storage cup holder 38 provided thereon as an example for illustration.

[0186] As Figure 34As shown, the armrest portion 34 includes a first armrest portion 34a located on the front side of the first socket 36 and a second armrest portion 34b located on the rear side of the first socket 36. The cup holder recess 343 is provided in the first armrest portion 34a. The storage cup holder 38 is provided with a connecting projection 381. The cup holder recess 343 is provided with an access groove 344 communicating with a limiting hole 345. The connecting projection 381 enters the limiting hole 345 through the access groove 344 for locking, so as to fix the storage cup holder 38 at the cup holder recess 343. Among them, the storage cup holder 38 includes a storage cup 383, and the connecting projection 381 is provided on the side wall of the storage cup 383. Specifically, the connecting projection 381 includes a connecting portion 3811 and a locking portion 3812. The connecting portion 3811 is connected between the locking portion 3812 and the side wall of the storage cup 383. The locking portion 3812 is connected to the connecting portion 3811 and extends along a direction parallel to the side wall of the connecting portion 3811 at an interval from the connecting portion 3811. The cup holder recess 343 has a side wall 3431 and a bottom wall 3432. Both the access groove 344 and the limiting hole 345 penetrate through the side wall 3431. The locking portion 3812 of the connecting projection 381 passes through the access groove 3411, so that the locking portion 3812 can penetrate from the inner side wall 3431a of the cup holder recess 343 to the outer side wall of the cup holder recess (not shown in the drawing). The connecting portion 3811 of the connecting projection 381 enters the limiting hole 345 along the access groove 3411, so that the locking portion 3812 abuts against the outer side wall of the cup holder recess 343 at the limiting hole 345, thereby locking the connecting projection 381 at the limiting hole 345.

[0187] Continue to refer to Figure 34 , the access groove 344 is generally L-shaped. The access groove 344 includes a first groove section 3441 and a second groove section 3442 that communicate with each other. The second groove section 3442 is located between the first groove section 3441 and the limiting hole 345. The first groove section 3441 extends in a direction substantially perpendicular to the bottom wall 3432, and the second groove section 3442 extends in a direction substantially parallel to the bottom wall 3432 (that is, extends in a direction substantially parallel to the circumferential direction of the cup holder recess 343). The distance between the opposite side walls of the first groove section 3441 is greater than the distance between the opposite side walls of the second groove section 3442. Among them, the connecting projection 381 can freely pass through the first groove section 3441 (that is, the locking portion 3812 of the connecting projection 381 can freely penetrate into or out of the first groove section 3441), while the locking portion 3812 of the connecting projection 381 cannot freely penetrate into or out of the second groove section 3442, and the connecting projection 381 slides relative to the second groove section 3442 along its extending direction.

[0188] As Figure 34As shown, a limiting convex part 349 is provided at the transition between the second slot section 3442 of the inlet slot 344 and the limiting hole 345. The limiting convex part 349 protrudes from the side wall of the second slot section 3442 and is used to limit the connecting part 3811 of the connecting convex 381 within the limiting hole 345, thereby preventing the accidental separation of the connecting convex 381 from the limiting hole 345. The connecting part 3811 of the connecting convex 381 can push against the limiting convex part 349 to cause it to deform, so that the connecting convex 381 can slide to or out of the position of the limiting hole 345. Specifically, the number of the limiting convex parts 349 is two, and the two limiting convex parts 349 are symmetrically distributed at the transition between the second slot section 3442 of the inlet slot 344 and the limiting hole 345. The cup holder recess 343 is provided with deformation holes 347, and the number of the deformation holes 347 is the same as that of the limiting convex parts 349. In this embodiment, the number of the deformation holes 347 is two, and the two deformation holes 347 are symmetrically distributed on both sides of the limiting hole 345 and are respectively located on both sides of the two limiting convex parts 349. Specifically, the two deformation holes 347 are arranged near the upper and lower sides of the limiting hole 345 and are symmetrically distributed with respect to the limiting hole 345. The arrangement of the deformation holes 347 can cause the limiting convex part 349 and its vicinity to deform during the process of the connecting part 3811 of the connecting convex 381 pushing against the limiting convex part 349, so that the connecting convex 381 can cross over the limiting convex part 349, and then the connecting convex 381 can be conveniently snapped into or out of the limiting hole 345.

[0189] To make the storage cup holder 38 more firmly connected to the cup holder recess 343, the storage cup holder 38 is further provided with a connecting column 382, and the connecting column 382 is arranged on the bottom wall of the storage cup 383. The cup holder recess 343 is provided with a first connecting hole 346, and the connecting column 382 is inserted and matched with the first connecting hole 346.

[0190] In the above embodiment, the process of installing the storage cup holder 38 at the cup holder recess 343 is as follows: First, align the connecting column 382 with the first connecting hole 346 and pass the connecting convex 381 through the first slot section 3441 of the inlet slot 344; then move the storage cup holder 38 downward along the first slot section 3441 so that the connecting convex 381 slides to the transition between the first slot section 3441 and the second slot section 3442. During this process, the connecting column 382 is inserted into the first connecting hole 346; then rotate the storage cup holder 38 clockwise so that the connecting convex 381 slides along the second slot section 3442 of the inlet slot 344 towards the limiting hole 345; continue to rotate the storage cup holder 38 clockwise, and the connecting part 3811 of the connecting convex 381 pushes against the limiting convex part 349 and crosses over the limiting convex part 349 so that the connecting convex 381 slides to the position of the limiting hole 345, thereby locking the connecting convex 381 with the limiting hole 345.

[0191] The process of detaching the storage cup holder 38 from the cup holder recess 343 is the reverse of the above process of installing it in the cup holder recess 343, which is as follows: First, rotate the storage cup holder 38 counterclockwise, and the connecting portion 3811 of the connecting convex 381 pushes against the limiting convex portion 349 and passes over the limiting convex portion 349 so that the connecting convex 381 slides from the limiting hole 345 into the second groove section 3442 of the entry groove 344; continue to rotate the storage cup holder 38 clockwise so that the connecting convex 381 slides along the second groove section 3442 of the entry groove 344 towards the first groove section 3441; when the connecting convex 381 slides to the transition between the first groove section 3441 and the second groove section 3442, move the storage cup holder 38 upward so that the connecting convex 381 slides along the first groove section 3441, and during this process, the connecting column 382 exits from the first connecting hole 346; finally, withdraw the connecting convex 381 from the first groove section 3441 of the entry groove 344.

[0192] As Figure 27 and Figure 28 shown, in an embodiment, to facilitate fixing the child booster seat 3, the child booster seat 3 is further configured with a connecting belt assembly 7. The connecting belt assembly 7 includes a webbing and a connector 73 provided on the webbing. The webbing includes a first webbing 71 and a second webbing 72. Connectors 73 are respectively provided at both ends of the first webbing 71. The first end of the second webbing 72 is connected to the middle part of the first webbing 71, and the second end of the second webbing 72 is connected to the seat cushion main body 31. The child booster seat 3 is provided with two armrest portions 34, and each armrest portion 34 has a second sleeve hole 348. The two second sleeve holes 348 are respectively used for the corresponding connectors 73 to pass through. In this embodiment, the second sleeve hole 348 is provided on the first armrest portion 34a. The child booster seat 3 can be fixed to the vehicle seat by using the connecting belt assembly 7. The second end of the second webbing 72 away from the first webbing 71 is connected to the bottom wall of the storage recess 314, or passes through the bottom wall of the storage recess 314 and is connected to other structures provided on the seat cushion main body 31. When the connecting belt assembly 7 is not in use, it can be stored in the storage recess 314, that is, the second webbing 7 and the connector 73 can both be accommodated in the storage recess 314. When using the connecting assembly 7, the two connectors 73 respectively provided on the first webbing 71 pass through the second sleeve holes 348 on the corresponding armrest portions 34 and are locked with the vehicle seat connectors configured on the vehicle seat; at the same time, by closing the cover body 33, a part of the second webbing 72 and the first webbing 71 is clamped in the storage recess 314 to prevent the first webbing 72 from rising above the upper surface of the child booster seat 3 when tightened and strangling the child's buttocks.

[0193] As Figures 10 to 11As shown, in one embodiment, the seat cushion body 31 includes a front end 31c and a rear end 31d. In one embodiment, the front end 31c refers to the front half of the seat cushion body 31 in the front-rear direction (i.e., the first direction D1), and the rear end 31d refers to the rear half of the seat cushion body 31 in the front-rear direction. The center line of the seat cushion body 31 in the left-right direction (i.e., the second direction D2) forms the demarcation line between the front end 31c and the rear end 31d. Exemplarily, referring to Figure 2 , the part of the seat cushion body 31 to the left of the U1-U1 section line is the front end 31c, and the part to the right of the A-A section line is the rear end 31d. Continuing to refer to Figure 10 and Figure 11 , the seat cushion body 31 is provided with a mating groove 311, and the mating groove 311 is located on the lower surface 31b of the seat cushion body 31. The mating groove 311 is adapted to be snap-fitted with at least a part of the backrest assembly 2. Specifically, the mating groove 311 is generally U-shaped. The mating groove 311 includes two first groove portions 3111 and a second groove portion 3112 communicating with the two first groove portions 3111. The two first groove portions 3111 are generally parallel to each other, and each first groove portion 3111 extends from the rear end 31d towards the front end 31c, that is, extends forward along the first direction D1. The two first groove portions 3111 are adapted to be respectively snap-fitted with the two mating ribs 22 to limit the movement of the child booster seat 3 relative to the mating ribs 22 in a direction perpendicular to the first direction D1. The two ends of the second groove portion 3112 are respectively communicated with the first groove portions 3111. In combination with referring to Figure 9 , the second groove portion 3112 is adapted to at least partially receive the cross bar 23, and the side wall of the second groove portion 3112 close to the backrest body 21 can abut against the cross bar 32, thereby limiting the movement of the child booster seat 3 relative to the cross bar 23 in the first direction D1, that is, limiting the forward movement of the child booster seat 3 relative to the cross bar 23. Of course, in other embodiments not shown, the mating groove 311 may be provided with only the first groove portion 3111, and the first groove portion 3111 is snap-fitted with the mating rib 22, and this application does not make any restrictions on this.

[0194] In one embodiment, as Figure 8 , Figure 9 and Figure 12As shown, the child booster seat 3 is provided with a connecting mechanism 32. The connecting mechanism 32 is connected to the seat cushion main body 31, and the child booster seat 3 is connected to the backrest assembly 2 through the connecting mechanism 32. The connecting mechanism 32 is provided near the front end 31c of the seat cushion main body 31. The connecting mechanism 32 includes a locking member 321, an unlocking member 322, and an elastic member 323. The locking member 321 is pivotally connected to the seat cushion main body 31 and has a hook portion 3211. The locking member 321 can pivot between an unlocking position and a locking position. When the locking member 321 is in the locking position, the locking member 321 is engaged with the backrest assembly 2 to allow the child booster seat 3 to be connected to the backrest assembly 2; when the locking member 321 is in the unlocking position, the locking member 321 is disengaged from the backrest assembly 2 to allow the child booster seat 3 to be separated from the backrest assembly 2. Specifically, referring to Figure 8 , when the locking member 321 is in the locking position, the hook portion 3211 of the locking member 321 is inserted into the second groove portion 3112 to be engaged with the cross bar 23; referring to Figure 9 , when the locking member 321 is in the unlocking position, the hook portion 3211 is adapted to be disengaged from the cross bar 23 (i.e., the hook portion 3211 disengages from the cross bar 23 and leaves the second groove portion 3112).

[0195] In other embodiments not shown, the locking member 321 can also slide relative to the seat cushion main body 31 along the first direction D1, the second direction D2, or the third direction D3. In these embodiments, the end of the locking member 321 is connected to the end of the unlocking member 322 through a driving structure such as a steel wire or an inclined surface. When the locking member 321 slides relative to the seat cushion main body 31, the locking member 321 drives the driving structure to move, and the driving structure pulls or pushes the end of the locking member 322, so that the locking member 322 rotates in the direction of the unlocking position.

[0196] Referring to Figure 8 and Figure 9, in one embodiment, the locking member 321 is generally C-shaped. The locking member 321 is provided with a pivoting portion 3214 and a driving portion 3213 connected to the pivoting portion 3214. The seat cushion body 31 is provided with a channel 313 that penetrates through the first seat cushion housing 301 and the second seat cushion housing 302. The locking member 321 is inserted through the channel 313, and the pivoting portion 3214 and the driving portion 3213 can protrude from one end of the channel 313. The pivoting portion 3214 is pivotally connected to the seat cushion body 31 and connected to the unlocking member 322, and the unlocking member 322 is pivotally connected to the seat cushion body 31. When the unlocking member 322 pivots, it can drive the locking member 321 to pivot through the driving portion 3213. The hook portion 3211 can at least partially protrude from the channel 313. Specifically, the hook portion 3211 can protrude from the other end of the channel 313 and be inserted into the second groove portion 3112 to engage with the cross bar 23. Wherein, the cross bar 23 has an upper side surface 231, a lower side surface 232, a rear side surface 233 facing the backrest main body 21, and a front side surface 234 facing away from the backrest main body 21. The locking member 321 is engaged with the cross bar 23 from the rear side surface 233 of the cross bar 23 towards the front side surface 234 (i.e., engaged with the cross bar 23 in the counterclockwise direction). The side walls of the channel 313 form a first limiting portion 3132 and a second limiting portion 3131, thereby restricting the pivoting range of the locking member 321. In this embodiment, the side wall on one side of the second groove portion 3112 of the mating groove 311 (the side wall of the second groove portion 3112 close to the backrest main body 21) is formed as the first limiting portion 3132. When the locking member 321 is in the locked position, the locking member 321 is abutted by the first limiting portion 3132, and the hook portion 3211 can protrude from the channel 313 and be inserted into the second groove portion 3112 to engage with the lower side surface 232 of the cross bar 23. Thus, the child booster seat 3 cannot move forward along the front-back direction (i.e., the first direction) or upward along the up-down direction (i.e., the third direction D3) relative to the cross bar 23 (the backrest assembly 2). When the locking member 321 is in the unlocked position, the locking member 321 abuts against the second limiting portion 3131. By providing the first limiting portion 3132 and the second limiting portion 3131, the pivoting range of the locking member 321 can be restricted between the locked position and the unlocked position, thereby preventing the locking member 321 from pivoting excessively.

[0197] As Figure 8 and Figure 9As shown, the hook portion 3211 of the locking member 321 is provided with a wedge surface 3212, and the wedge surface 3212 is provided at one end of the hook portion 3211. The wedge surface 3212 is adapted to be pushed by the cross bar 23 so that the locking member 321 pivots, thereby allowing the hook portion 3211 to be engaged with the cross bar 23. The upper side surface 231 of the cross bar 23 is an arc surface or an inclined surface to facilitate more stable pushing of the wedge surface 3212. The lower side surface 232 of the cross bar 23 is substantially a plane, and the lower side surface 232 is slightly inclined from the front side surface 234 towards the rear side surface 233 so that the lower side surface 232 can be more firmly engaged with the hook portion 3211.

[0198] In one embodiment, as Figure 8 、 Figure 9 and Figure 12 shown, the unlocking member 322 has a pivot recess 3221. Specifically, the unlocking member 322 includes a top portion 3222 and two opposite side portions 3223. The two side portions 3223 are respectively connected to both sides of the top portion 3222 and are substantially parallel to each other. The top portion 3222 and the two side portions 3223 enclose to form the pivot recess 3221. The unlocking member 322 is generally U-shaped. The pivot recess 3221 is formed at both ends of the unlocking member 322, and a handle portion 3224 is provided between the two ends of the unlocking member 322. The upper surface 31a of the seat cushion main body 31 is provided with a receiving groove 312, and the receiving groove 312 is formed by the first seat cushion housing 301. The unlocking member 322 is received in the receiving groove 312 and is pivotally connected to the side wall of the receiving groove 312. Specifically, the two ends of the unlocking member 322 are respectively pivotally connected to the side wall of the receiving groove 312. More specifically, the two side portions 3223 are pivotally connected to the side wall of the receiving groove 312 through a pin shaft 324.

[0199] Continue to refer to Figure 8 、 Figure 9 and Figure 12, the receiving groove 312 communicates with the channel 313, so that the pivoting portion 3214 of the locking member 321 can extend into the receiving groove 312 to pivotally connect with the side wall of the receiving groove 312. Wherein, the pivoting portion 3214 is at least partially received in the pivoting recess 3221, and the driving portion 3213 can at least partially extend out of the pivoting recess 3221, so that the driving portion 3213 can be pushed by the unlocking member 322. The pivoting axis of the locking member 321 relative to the seat cushion main body 31 and the pivoting axis of the unlocking member 322 relative to the seat cushion main body 31 are collinear or parallel. In this embodiment, the unlocking member 322 and the locking member 321 are pivotally connected to the seat cushion main body 31 through the same pin shaft 324, and the locking member 321 and the unlocking member 322 can pivot relative to the pin shaft 324. Specifically, the pin shaft 324 is respectively passed through the locking member 321 and the unlocking member 322, and both ends of the pin shaft 324 are fixedly connected to the two side walls of the receiving groove 312. More specifically, the pin shaft 324 passes through the two side portions 3223 of the unlocking member 322 and is connected to the side wall of the receiving groove 312 through the locking member 321. In another embodiment, the unlocking member 322 and the locking member 321 can be pivotally connected to the seat cushion main body 31 through a plurality of pin shafts 324. For example, each pivoting recess 3221 is respectively pivotally connected to the two side walls of the receiving groove 312 through two pin shafts 324 and is connected to the locking member 321, and the present application does not limit this.

[0200] As Figure 8 and Figure 9 shown, the unlocking member 322 can pivot between a first position and a second position to drive the locking member 321 to pivot between a locking position and an unlocking position. When the unlocking member 322 is in the second position, the angle between the unlocking member 322 and the seat cushion main body 31 is greater than the angle between the unlocking member 322 and the seat cushion main body 31 when the unlocking member 322 is in the first position. In this embodiment, when the unlocking member 322 is in the first position, the locking member 321 is in the locking position, and the unlocking member 322 can be completely received in the receiving groove 312 (that is, the unlocking member 322 does not protrude from the receiving groove 312). More specifically, when the unlocking member 322 is in the first position, the unlocking member 322 is just flush with the upper surface 31a of the seat cushion main body 31. In this way, a relatively flat riding surface can be provided, improving the comfort of a child when sitting on the child booster seat 3. When the unlocking member 322 pivots to the second position, the locking member 321 is in the unlocking position, and the handle portion 3224 of the unlocking member 322 disengages from the receiving groove 312. In this way, the unlocking member 322 can be conveniently operated.

[0201] Optionally, the unlocking member 322 is provided with a third position located between the first position and the second position. When the unlocking member 322 pivots from the first position to the third position, the pivoting recess 3221 of the unlocking member 322 cannot push against the driving portion 3213 of the locking member 321 to pivot, that is to say, the first position to the third position is the buffer stroke of the unlocking member 322. During the buffer stroke of the unlocking member 322, the locking member 321 remains in the locked position. By setting the buffer stroke, it can be avoided that the unlocking member 322 causes the locking member 321 to disengage from the cross bar 23 due to misoperation, improving the safety of the connection between the child booster seat 3 and the backrest assembly 2. When the unlocking member 322 is in the third position, the end of the pivoting recess 3221 of the unlocking member 322 just abuts against the driving portion 3213 of the locking member 321, and the locking member 321 is in the locked position. The end of the pivoting recess 3221 can push against the driving portion 3213 to drive the locking member 321 to pivot. When the unlocking member 322 pivots from the third position to the second position, the end of the pivoting recess 3221 can push against the driving portion 3213 to drive the locking member 321 to pivot from the locked position to the unlocked position. In this embodiment, when the unlocking member 322 is in the first position, the unlocking member 322 is substantially parallel to the upper surface 31a of the seat cushion body 31, that is, the angle between the unlocking member 322 and the upper surface 31a is approximately 0°. When the unlocking member 322 is in the second position, the angle between the unlocking member 322 and the upper surface 31a is approximately 90°. When the unlocking member 322 is in the third position, the angle between the unlocking member 322 and the upper surface 31a is approximately 60°. The buffer stroke range of the unlocking member 322 is approximately (0°, 60°). Of course, the angles between the unlocking member 322 and the upper surface 31a when the unlocking member 322 is in the first position, the third position, and the second position can also be set to other angles, and this application does not limit this.

[0202] As Figure 8 , Figure 9 and Figure 12 shown, in this embodiment, the number of the locking members 321 is one. The locking member 321 is connected to the pivoting recess 3221 at one end of the unlocking member 322. In other embodiments, the number of the locking members 321 can be two, and the two locking members 321 are respectively connected to the pivoting recesses 3221 at the two ends of the unlocking member 322 through the pin shafts 324. Of course, in another other embodiment, more than two locking members 321 can also be configured according to the shape of the unlocking member 322 and actual needs, and these locking members 321 are respectively pivotally connected to the unlocking member 322, and this application does not limit this. The unlocking member 322 pushes against the driving portion 3213 through the end of the top 3222 to drive the locking member 321 to pivot in the same direction as the unlocking member 322 (such as the rotation direction R1, that is, the clockwise direction).

[0203] As Figure 31 and Figure 32, in another embodiment, the connecting mechanism 32 includes a lock release member 322, a locking member 321, and an elastic member 323. Among them, the structure of the locking member 321 can be set with reference to the structure of the locking member 321 in the above embodiment, and the structure of the elastic member 323 can be set with reference to the structure of the third elastic member 323c in the following embodiment, which will not be elaborated here. The lock release member 322 in this embodiment is mainly different from the lock release member 322 in the embodiment shown in the following Figure 8 and Figure 9 as follows.

[0204] For example Figure 31 and Figure 32 , in another embodiment, the lock release member 322 is separably drivingly connected to the locking member 321, that is, the lock release member 322 is drivingly connected to the locking member 321 and the two can be separated from each other. Among them, the lock release member 322 is pivotally connected to the second cover portion 33e of the cover body 33. Specifically, a concave receiving groove 312 is provided on the upper surface 31a of the cover body 33, and the receiving groove 312 is used to receive the lock release member 322. Two end portions of the lock release member 322 are respectively pivotally connected to the side walls of the receiving groove 312. The locking member 321 is pivotally connected to the rotating recess 3101 of the seat cushion main body 31, where the rotating recess 3101 penetrates the bottom wall of the covering recess 3102. With reference to Figure 28 , a through hole 3105 is provided on the lower housing 33b of the cover body 33, and the through hole 3105 communicates with the receiving groove 312. The through hole 3105 is used for at least one of the lock release member 322 and the locking member 321 to pass through, so that the lock release member 322 can drive the locking member 321 to rotate. The driving portion 3213 of the locking member 321 at least partially passes through the rotating recess 3101 and extends into the covering recess 3102. When the cover body 33 is in the closed state, the receiving groove 312 communicates with the covering recess 3102 through the through hole 3105, so that when the lock release member 322 rotates, it can push against the driving portion 3213, thereby driving the locking member 321 to pivot.

[0205] Figures 13 to 14 Shows a perspective view of the elastic member 323 according to an embodiment of the present application. Figure 15 Shows a perspective view of the elastic member 323 according to another embodiment of the present application.

[0206] For example Figures 12 to 14As shown, in one embodiment, the elastic member 323 includes a first elastic member 323a, which is, for example, a torsion spring. The elastic member 323a is sleeved on the pin shaft 324. The elastic member 323a includes a first end 3233 connected to the seat cushion main body 31, a second end 3234 connected to the unlocking member 322, and a third end 3235 connected to the locking member 321. Specifically, the first end 3233 is received in the receiving cavity 303 and abuts against the second seat cushion housing 302 of the seat cushion main body 31. The second end 3234 is snap-connected to the unlocking member 322, and the third end 3235 is snap-connected to the locking member 321. The second end 3234 biases the unlocking member 322 in the direction of the first position, so that the unlocking member 322 pivots to the first position. The third end 3235 biases the locking member 321 in the direction of the locking position, so that the locking member 321 pivots to the locking position. In this embodiment, the first elastic member 323a is an integral member, which is convenient for installing the first elastic member 323a.

[0207] As Figure 15 and Figure 16 shown, in another embodiment, the elastic member 323 includes a second elastic member 323b and a third elastic member 323c. The second elastic member 323b and the third elastic member 323c are, for example, torsion springs respectively. With reference to Figure 12 , both the second elastic member 323b and the third elastic member 323c are sleeved on the pin shaft 324. One end of the second elastic member 323b abuts against the seat cushion main body 31, and the other end of the second elastic member 323b is snap-connected to the unlocking member 322. The second elastic member 323b biases the unlocking member 322 in the direction of the first position, so that the unlocking member 322 pivots to the first position. One end of the third elastic member 323c abuts against the seat cushion main body 31, and the other end is snap-connected to the locking member 321. The third elastic member 323c biases the locking member 321 in the direction of the locking position, so that the locking member 321 pivots to the locking position. The elastic member 323 in this embodiment includes two independent torsion springs, which has a simple structure and a low cost.

[0208] In other embodiments not shown, the elastic member 323 may only include the third elastic member 323c that biases the locking member 321 in the direction of the locking position. In this embodiment, when the locking member 321 pivots from the unlocking position to the locking position, it drives the unlocking member 322 to pivot from the second position to the third position. When the unlocking member 322 is in the third position, the unlocking member 322 pivots from the third position to the first position under its own gravity.

[0209] In another embodiment, the elastic member 323 may only include a second elastic member 323b that biases the locking member 321 in the direction of the first position. The unlocking member 322 is provided with a bottom (not shown) opposite to the top 3222, and the bottom is connected between the two side portions 3223. At least a part of the driving portion 3213 of the locking member 321 can extend from between the top 3222 and the bottom to the outside of the pivot recess 3221. When the unlocking member 322 pivots from the second position to the first position, the bottom can push against the driving portion 3213 to pivot the locking member 321 from the unlocked position to the locked position.

[0210] In one embodiment, as Figure 5 and Figure 7 shown, a card slot 319 is provided at the rear end 31d of the seat cushion body 31, and the card slot 319 communicates with the first groove portion 3111 of the mating groove 311. The groove wall (such as the bottom wall) of the card slot 319 forms a first engaging inclined surface 3191. The first engaging inclined surface 3191 is inclined with respect to the upper surface 31a of the seat cushion body 31. The mating rib 22 is provided with an abutting portion 223. The abutting portion 223 is provided with a second engaging inclined surface 222 adapted to cooperate with the first engaging inclined surface 3191. In this embodiment, the abutting portion 223 is provided inside the mating rib 22. When the child booster seat 3 is connected to the backrest assembly 2, the abutting portion 223 is at least partially received in the card slot 319, and the first engaging inclined surface 3191 abuts against the second engaging inclined surface 222 to prevent the child booster seat 3 from moving relative to the backrest 2 in the first direction D1 (i.e., the front-back direction) and in the third direction D3 (i.e., the vertical direction, also known as the up-down direction), thereby clamping the child booster seat 3 between the backrest main body 21 and the base 9. Wherein, the third direction D3 is substantially perpendicular to the first direction D1. As Figure 24 shown, in another embodiment, abutting portions 223 are provided on both the inner side and the outer side of the mating rib 22. In another alternative embodiment, the abutting portion 223 can be provided on the backrest main body 21. It can be understood that in other embodiments not shown, it can also be that the rear end 31d of the seat cushion body 31 is provided with an abutting portion 223, the abutting portion 223 is provided with a first engaging inclined surface 3191, the backrest main body 21 is provided with a card slot 319, and the card slot 319 is provided with a second engaging inclined surface 222 adapted to cooperate with the first engaging inclined surface 3191, and the present application is not limited thereto.

[0211] In this embodiment, the front end 31c of the seat cushion main body 31 is snap-fitted to the cross bar 23 of the backrest assembly 2 through the connecting mechanism 32. The rear end 31d of the seat cushion main body 31 restricts the movement of the child booster seat 3 in the first direction D1 and the third direction D3 through the cooperation of the first engaging inclined surface 3191 and the second engaging inclined surface 222. And through the snap-fit cooperation between the engaging rib 22 and the engaging groove 311, the movement of the child booster seat 3 in the direction perpendicular to the first direction D1 (i.e., the second direction D2, also known as the left-right direction or the transverse direction) is restricted. In this way, the child booster seat 3 can be stably connected to the backrest assembly 2.

[0212] In this embodiment, when it is necessary to disassemble the child booster seat 3 from the backrest assembly 2, refer to Figure 8 , and rotate the unlocking member 322 in the clockwise direction R1. When the unlocking member 322 rotates from the first position to the third position, the end of the U-shaped unlocking member 322 abuts against the driving portion 3213 of the locking member 321. When the unlocking member 322 further rotates from the third position to the second position, the end of the unlocking member 322 pushes against the driving portion 3213 to rotate clockwise, causing the locking member 321 to move from the locking position to the unlocking position. Refer to Figure 9 , when the unlocking member 322 rotates to the second position, the locking member 321 is pushed to the unlocking position, and the hook portion of the locking member 321 retracts from the second groove portion 3112 to the channel 313, and the locking member 321 is disengaged from the cross bar 23. Keep the unlocking member 322 in the second position, and apply an external force to the child booster seat 3 in the forward direction along the first direction D1 to move it forward, so that the first engaging inclined surface 3191 of the child booster seat 3 is separated from the second engaging inclined surface 222 (refer to Figure 7 ). Thus, the child booster seat 3 can be separated from the backrest assembly 2. At this time, the external force applied to the unlocking member 322 can be released, and the unlocking member 322 rotates from the second position to the first position under the elastic restoring force of the elastic member 323, and the locking member 321 pivots from the unlocking position to the locking position under the elastic restoring force of the elastic member 323.

[0213] When it is necessary to install the child booster seat 3 to the backrest assembly 2, push the seat cushion main body 31 in the opposite direction of the first direction D1 to make the first engaging inclined surface 3191 cooperate with the second engaging inclined surface 222. Press the front end 31c of the seat cushion main body 31 in the opposite direction of the third direction D3, and the upper side surface 231 of the cross bar 23 pushes against the wedge surface 3212 of the locking member 321 to make the locking member 321 pivot clockwise. When the cross bar 23 moves relative to the base 3 in the third direction D3 to be separated from the wedge surface 3212, the locking member 321 pivots counterclockwise under the elastic restoring force of the elastic member 323 to engage with the cross bar 23, thereby realizing the installation of the child booster seat 3 to the backrest assembly 2.

[0214] In other embodiments not shown, the first engaging slope 3191 and the second engaging slope 222 may not be provided either. For example, connection mechanisms 32 are provided at positions on the seat cushion body 31 close to the rear end 31d and the front end 31c, and cross bars 23 are provided at both ends of the fitting rib 22 close to and away from the backrest body 21. The two connection mechanisms 32 are arranged back to back, that is, the two connection mechanisms 32 are respectively engaged with the corresponding cross bars 23 in opposite directions (for example, along the first direction D1 and the opposite direction of the first direction D1). In this embodiment, the two connection mechanisms 32 are respectively clamped with the two cross bars 23 to limit the movement of the child booster seat 3 in the direction parallel to the first direction D1 (i.e., in the front-rear direction) and the direction parallel to the third direction D3 (i.e., in the up-down direction), thereby firmly connecting the child booster seat 3 to the backrest assembly 2.

[0215] As Figures 10 to 12 shown, the child booster seat 3 is further provided with a crotch belt hole 37 for the crotch belt 41 (refer to Figure 1 ) of the child safety seat to pass through, and the crotch belt hole 37 penetrates through the seat cushion body 31. Among them, the crotch belt hole 37 penetrates through the upper surface 31a and the lower surface 31b of the seat cushion body 31, that is, the crotch belt hole 37 has a crotch belt outlet 37a on the upper surface 31a and a crotch belt inlet 37b on the lower surface 31b. One end of the crotch belt 41 is located on the lower surface 31b, and the other end passes through the crotch belt hole 37 and exits to the upper surface 31a. Continuing to refer to Figure 12 , the crotch belt hole 37 communicates with the guiding recess 317 on the lower surface 31b of the seat cushion body 31. Specifically, the crotch belt inlet 37b is located on the bottom wall of the guiding recess 317. Among them, the number of the crotch belt holes 37 is two, and the crotch belt holes 37 are distributed along the first direction D1 to allow the crotch belt 41 to pass through the crotch belt hole 37 selected according to the body type of the child. In other embodiments, the number of the crotch belt holes 37 can be set to one or more than two, and the present application does not limit this.

[0216] As Figure 12 shown, in one embodiment, the crotch belt hole 37 deviates from the storage recess 314, that is, at least one of the crotch belt inlet 37b and the crotch belt outlet 37a of the crotch belt hole 37 does not communicate with the storage recess 314. Combining Figure 10 shown, in this embodiment, the crotch belt outlet 37a deviates from the cover body 33 (that is, the crotch belt outlet 37a is not provided on the cover body 33).

[0217] As Figure 27 and Figure 28As shown, in another embodiment, the crotch strap hole 37 penetrates through the cover 33 and communicates with the storage recess 314. Specifically, the crotch strap hole 37 is located in the first cover portion 33d. The crotch strap outlet 37a is located on the upper cover 33a, and the crotch strap inlet 37b is located on the lower cover 33b. In this way, when the crotch strap 41 is not in use, the crotch strap 41 can be directly stored in the storage recess 314.

[0218] As Figure 7 , Figure 11 and Figure 12 shown, in one embodiment, the booster seat 3 is further provided with a shoulder strap adjustment hole 318. The shoulder strap adjustment hole 318 is used for the adjustment strap 42 to pass through to adjust the effective length of the shoulder strap 43. The child safety seat 100 is further provided with an adjustment mechanism 35, at least a part of the adjustment mechanism 35 is arranged on the seat cushion main body 31 and at least partially accommodated in the shoulder strap adjustment hole 318. The adjustment mechanism 35 is connected to the adjustment strap 42 to adjust and lock the effective length of the shoulder strap 43. With reference to Figure 10 , at least a part of the adjustment mechanism 35 is located on the upper surface 31a of the seat cushion main body 31 and at the front end 31c of the seat cushion main body 31, so as to facilitate the operation of the adjustment mechanism 35. A guiding recess 317 is provided on the lower surface 31b of the seat cushion main body 31, and the guiding recess 317 extends from the rear end 31d of the seat cushion main body 31 to the front end 31c. The extending direction of the guiding recess 317 is substantially parallel to the first direction D1. In this embodiment, the guiding recess 317 is located between the two first groove portions 3111, and the shoulder strap adjustment hole 318 communicates with the accommodation cavity 303. One end of the shoulder strap adjustment hole 318 is located on the upper surface 31a, and the other end of the shoulder strap adjustment hole 318 is located on the bottom wall of the second groove portion 3112 of the mating groove 311. The shoulder strap adjustment hole 318 communicates with the guiding recess 317. At least a part of the adjustment mechanism 35 is mounted on the upper surface 31a of the seat cushion main body 31. The cross bar 23 is provided with a mounting portion 235, and the adjustment mechanism 35 is connected to the mounting portion 235 through the shoulder strap adjustment hole 318. The adjustment strap 42 can extend along the guiding recess 317 and is connected to the adjustment mechanism 35 through the shoulder strap adjustment hole 318. The adjustment mechanism 35 has a locked state and an unlocked state. When the adjustment mechanism 35 is in the unlocked state, the adjustment strap 42 can move bidirectionally relative to the adjustment mechanism 35, so that the effective length of the shoulder strap 43 can be increased or decreased. When the adjustment mechanism 35 is in the locked state, the adjustment strap 42 can only move unidirectionally relative to the adjustment mechanism 35, so that the effective length of the shoulder strap 43 can be decreased by pulling the adjustment strap 42.

[0219] Figure 21 FIG. shows a schematic structural diagram of an adjustment mechanism 35 according to another embodiment of the present application.

[0220] As Figure 21As shown, in another embodiment, the child safety seat 100 further includes an adjustment mechanism 35. In this embodiment, the adjustment mechanism 35 in this embodiment has at least the following differences from the adjustment mechanisms 35 in the embodiments shown in Figure 7 , Figure 11 and Figure 12 . The adjustment mechanism 35 includes a seat belt locking assembly 351 and a seat belt adjustment unlocking member 352. With reference to Figure 24 , the seat belt locking assembly 351 is disposed on the cross bar 23 for the adjustment strap 42 of the seat belt 4 to pass through and lock the adjustment strap 42 of the seat belt 4, and has a locked state and an unlocked state. When the seat belt locking assembly 351 is in the locked state, the adjustment strap 42 can move unidirectionally relative to the seat belt locking assembly 351 in a direction to tighten the shoulder strap 43 of the seat belt 4. When the seat belt locking assembly 351 is in the unlocked state, the adjustment strap 42 can move bidirectionally relative to the seat belt locking assembly 351 in directions to tighten and loosen the shoulder strap 43 of the seat belt 4.

[0221] With reference to Figure 21 , the seat belt adjustment unlocking member 352 is movably passed through the child booster seat 3. Specifically, the seat belt adjustment unlocking member 352 is movably passed through the cover body 33. The seat belt adjustment unlocking member 352 is drivingly connected to the seat belt locking assembly 351 in a separable manner, that is, the seat belt adjustment unlocking member 352 is drivingly connected to the seat belt locking assembly 351 and the two can be separated from each other. The seat belt adjustment unlocking member 352 has an operation section 3523a and a driving end 3522. The operation section 3523a is exposed on the upper surface 31a of the child booster seat 3, and the driving end 3522 is located on the lower surface 31b of the child booster seat 3. The operation section 3523a can be operated to allow the seat belt locking assembly 351 to be pushed by the driving end 3522 to switch from the locked state to the unlocked state. Specifically, the seat belt adjustment unlocking member 352 is pivotally connected to the seat cushion main body 31 of the child booster seat 3 through a pivot shaft 3521. The pivot shaft 3521 is connected to one end of the operation section 3523a far from the driving end 3522. In this embodiment, the seat belt adjustment unlocking member 352 is an integrally formed member. The upper surface of the operation section 3523a forms a concave pressing recess 3523. The pivot shaft 3521 is connected to the lower surface of the operation section 3523a. The pressing recess 3523 and the driving end 3522 are both located on the same side of the pivot shaft 3521. When the pressing recess 3523 is pressed downward, the driving end 3522 rotates around the pivot shaft 3521 and pushes the seat belt locking assembly 351. With reference to Figure 31 and Figure 32 shown, the seat belt adjustment unlocking member 352 is located between two opening and closing mechanisms 39 (that is, the opening and closing unlocking member 391).

[0222] With reference to Figure 21 andFigure 24 , the seat belt locking assembly 351 includes a locking seat 3511 and a locking block 3512, and the locking block 3512 is pivotally connected to the locking seat 3511. The locking seat 3511 is fixedly provided on or integrally formed with the cross bar 23. A torsion spring (not shown in the drawings) is provided between the locking seat 3511 and the locking block 3512. When the seat belt adjustment unlocking member 352 is operated, the driving end 3522 rotates around the pivot shaft 3521 and pushes the locking block 3512 to rotate, so that the adjustment mechanism 35 switches from the locked state to the unlocked state. When the unlocking member 352 is not operated, the locking block 3512 rotates towards the initial position under the elastic restoring force of the torsion spring. During this process, the locking block 3512 pushes the seat belt adjustment unlocking member 352 to rotate towards the initial position.

[0223] Figure 48 Shows a schematic structural diagram of the adjustment mechanism 35 provided according to another embodiment of the present application. The adjustment mechanism 35 in this embodiment is at least different from the adjustment mechanism 35 in the embodiment shown above Figure 21 in the following aspects.

[0224] Combined with Figure 35 , Figures 46 to 48As shown, the adjustment mechanism 35 includes a seat belt locking assembly 351 and a seat belt adjustment unlocking member 352. Among them, the seat belt locking assembly 351 can refer to its setting in the above-mentioned another embodiment, which will not be elaborated here. The seat belt adjustment unlocking member 352 is movably arranged on the cover 33. The seat belt adjustment unlocking member 352 moves substantially in the up and down direction, that is, the seat belt adjustment unlocking member 352 moves substantially in a direction perpendicular to the upper surface 31a of the seat cushion main body 31. The cover 33 is provided with a through channel 336, and the through channel 336 penetrates through the upper cover 33a and the lower cover 33b. The upper cover 33a and the lower cover 33b respectively form two outlets of the through channel 336. The seat belt adjustment unlocking member 352 has an operation section 3523a and a driving end 3522. The operation section 3523a is exposed on the upper surface 31a of the child booster seat 3 through the outlet on the upper cover 33a, and the driving end 3522 can extend out of the lower surface 31b of the child booster seat 3 through the outlet on the lower cover 33b. In this embodiment, the seat belt adjustment unlocking member 352 is an integrally formed member. The upper surface of the operation section 3523a forms a concave pressing recess 3523. The operation section 3523a is provided with a first limiting portion 3524, and the through channel 336 is provided with a second limiting portion 3361. The second limiting portion 3361 is arranged on the upper cover 33a and is located at the opening of the upper cover 33a. The first limiting portion 3524 is adapted to abut against the second limiting portion 3361 for limiting, so as to at least partially limit the seat belt adjustment unlocking member 352 in the through channel 336 and prevent the seat belt adjustment unlocking member 352 from disengaging from the through channel 336. The driving end 3522 is provided with a limiting hook portion 3525, and the side wall of the through channel 336 is provided with a limiting recess 3363. The limiting recess 3363 is arranged at the outlet of the lower cover 33b. The limiting hook portion 3525 is adapted to engage with the limiting recess 3363 to prevent the seat belt adjustment unlocking member 352 from disengaging from the through channel 336.

[0225] When the seat belt adjustment unlocking member 352 is operated, the seat belt adjustment unlocking member 352 moves downward, and the driving end 3522 extends out of the through channel 336 and pushes the locking block 3512 of the seat belt locking assembly 351 to rotate, so that the adjustment mechanism is switched from the locked state to the unlocked state, and thus the adjustment belt 42 can be adjusted bidirectionally.

[0226] Refer to Figure 48, the adjustment mechanism 35 further includes an adjustment reset member 353. The adjustment reset member 353 is disposed in the threading channel 336 and abuts against the operation section 3523a of the seat belt adjustment unlocking member 352. The adjustment reset member 353 provides a force for the seat belt adjustment unlocking member 352 to move the seat belt adjustment unlocking member 352 back to the initial position, so that the adjustment mechanism 35 switches from the unlocked state to the locked state. Specifically, when the seat belt adjustment unlocking member 352 is not operated, the seat belt adjustment unlocking member 352 moves towards the initial position under the action of the adjustment reset member 353, and the driving end 3522 no longer pushes against the locking block 3512 of the seat belt locking assembly 351. The locking block 3512 rotates and resets under the action of the torsion spring, so that the adjustment mechanism 35 switches to the locked state. In this embodiment, the adjustment reset member 353 is, for example, a compression spring. A first boss 3362 is provided in the threading channel 336, and a second boss 3526 is provided on the operation section 3523a. The first boss 3362 and the second boss 3526 are arranged opposite to each other. One end of the adjustment reset member 353 is sleeved on the first boss 3362, and the other end is sleeved on the second boss 3526 and abuts against the operation section 3523a. This can prevent the adjustment reset member 353 from shifting during the elastic energy storage process.

[0227] The present application also provides a tilt adjustment device, which can be configured on the child safety seat 100.

[0228] As can be seen from the above, in some embodiments, the child safety seat 100 is further provided with a tilt adjustment device 5. By adjusting the tilt adjustment device 5, the tilt angle θ between the backrest assembly 2 and the base 9 (that is, the tilt angle θ of the backrest main body 21 relative to the base 9) can be adjusted.

[0229] As Figure 21 and Figure 22 shown, in another embodiment, the tilt adjustment device 5 is connected between the base 9 and the seat assembly 10, and at least a part of the tilt adjustment device 5 is located between the base 9 and the fitting rib 22. The tilt adjustment device 5 has a locked state and an unlocked state. The tilt adjustment device 5 includes an engaging mechanism 51 and an operating assembly 520. The engaging mechanism 51 is connected between the base 9 and the fitting rib 22 and can switch between a locking position and an unlocking position. The operating assembly 520 is drivingly connected to the engaging mechanism 51, and the operating assembly 520 can be operated to drive the engaging mechanism 51 to switch from the locking position to the unlocking position. When the engaging mechanism 51 is in the unlocking position, the tilt adjustment device 5 is in the unlocked state, and the fitting rib 22 of the backrest assembly 2 is allowed to slide relative to the base 9, so that the tilt angle θ of the backrest main body 21 relative to the base 9 can be adjusted and changed; when the engaging mechanism 51 is in the locking position, the tilt adjustment device 5 is in the locked state, and the fitting rib 22 is restricted from sliding relative to the base 9, so as to lock the tilt angle θ of the backrest main body 21 relative to the base 9.

[0230] As Figure 21 and Figure 22 shown, in another embodiment, the tilt adjustment device further includes a fastening member 53. The engaging mechanism 51 is pivotally disposed on one of the seat assembly 10 and the base 9 and is provided with an engaging rod 511. The fastening member 53 is disposed on the other of the seat assembly 10 and the base 9 and is sequentially provided with a plurality of engaging recesses 531 along the front-rear direction. Among them, the engaging rod 511 can selectively engage with one of the plurality of engaging recesses 531 to limit the seat assembly 10 at a desired angle, and when the engaging mechanism 51 pivots to disengage the engaging rod 511 from the plurality of engaging recesses 531, the seat assembly 10 can move relative to the base 9 in the front-rear direction. In this embodiment, in combination with Figures 24 to 26 shown, the engaging mechanism 51 is pivotally disposed on the seat assembly 10. Specifically, the engaging mechanism 51 is pivotally connected to the mating rib 22. The fastening member 53 is fixedly disposed on the base 9. When the engaging rod 511 engages with the engaging recess 531 at the rearmost side of the base 9, the angle θ between the backrest assembly 2 and the base 9 is the largest (i.e., the seat assembly 10 is in the upright position). When the engaging rod 511 engages with the engaging recess 531 at the foremost side of the base 9, the angle θ between the backrest assembly 2 and the base 9 is the smallest (i.e., the seat assembly 10 is in the lying position). Of course, according to actual needs, the engaging mechanism 51 can be disposed on the base 9 and the fastening member 53 can be disposed on the seat assembly 10. In other embodiments not shown, the fastening member 53 may not be provided, but a plurality of engaging recesses 531 may be directly provided on the base 9 or the seat assembly 10, and the present application does not limit this.

[0231] Referring to Figure 21 and Figure 30 , in another embodiment, the operation component 520 is movably disposed on the seat body 1. Among them, the seat body 1 is, for example, a child booster seat 3. The operation component 520 includes a first operation member 52, a second operation member 56, and an operation reset member 54. Among them, the second operation member 56 is movably disposed on the seat body 1, the first operation member 52 is movably disposed on the seat body 1 and is drivingly connected to the driving member 512 of the engaging mechanism 51, and the moving direction of the second operation member 56 is parallel to the moving direction of the first operation member 52. The second operation member 56 is connected to the first operation member 52 and can be operated to drive the first operation member 52 to move, thereby driving the engaging mechanism 51 to switch from the locked position to the unlocked position. In combination with reference to Figure 23, the first operating member 52 is generally U-shaped. The first operating member 52 is movably disposed within the seat body 1 and has an operating portion 521 and operating driving portions 522 connected to both ends of the operating portion 521. The operating portion 521 is connected to the second operating member 56, and the operating driving portions 522 are drivingly connected to the engaging mechanism 51. When the second operating member 56 is operated, the first operating member 52 is driven to move within the seat body 1 through the operating portion 521, and the operating driving portions 522 of the first operating member 521 drive the engaging mechanism 51 to rotate relative to the engaging rib 22 about the pivot axis X (see Figure 24 ), so that the engaging mechanism 51 rotates from the locked position to the unlocked position. In this embodiment, the seat body 1 is provided with an operating notch 3103, and the operating notch 3103 is located at the front end 31c of the seat body 1 and on the lower surface 31b of the seat body 1. The second operating member 56 is located at the operating notch 3103. In this way, the second operating member 56 can be conveniently operated via the operating notch 3103, the second operating member 56 can be prevented from interfering with a child sitting within the seat body 1, and at the same time, the child can be prevented from accidentally moving the second operating member 56.

[0232] As Figure 21 shown, an operating return member 54 is disposed between the first operating member 52 and the seat body 1, and the operating return member 54 is adapted to bias the first operating member 52 to move the first operating member 52 towards the initial position. Wherein, when the first operating member 52 is in the initial position, the tilt adjustment device 5 is in a locked state, and the engaging mechanism 51 is in the locked position. In this embodiment, the operating return member 54 is, for example, a compression spring. The operating return member 54 is located within the seat body 1. One end of the operating return member 54 abuts against the seat body 1, and the other end of the operating return member 54 abuts against the first operating member 52. Specifically, the other end of the operating return member 54 abuts against the operating portion 521 of the first operating member 52.

[0233] As Figure 22 , Figures 24 to 26 shown, in another embodiment, the engaging mechanism 51 includes an engaging rod 511 and two driving members 512 connected to the engaging rod 511. The two driving members 512 and the engaging rod 511 together form a generally U-shaped structure. The two driving members 512 are respectively pivotally connected to the corresponding engaging ribs 22 through connecting pins 501. Specifically, the driving member 512 is pivotally connected to the rib housing 227 of the corresponding engaging rib 22 through the connecting pin 501. The driving member 512 is generally L-shaped. The driving member 512 has a first driving end portion 5121 and a second driving end portion 5122. The first driving end portion 5121 extends substantially vertically (i.e., in the up and down direction), and the second driving end portion 5122 extends substantially horizontally (i.e., in the front and back direction). Refer to Figure 22, the first driving end 5121 is drivingly connected to the operation driving part 522 of the first operating member 52. Specifically, the operation driving part 522 is provided with a driving groove 523, and the first driving end 5121 is inserted into the driving groove 523. The end of the driving groove 523 can push against the first driving end 5121, so as to drive the driving member 512 to rotate around the connecting pin 501 (i.e., the pivot axis X). With reference to Figure 29 and Figure 30 , in this embodiment, the operation driving part 522 is located inside the seat body 1. The lower surface 31b of the seat body 1 is provided with a penetrating hole 31b1. The first driving end 5121 extends into the seat body 1 through the penetrating hole 31b1 and is inserted into the driving groove 523. Of course, in other alternative embodiments, it may also be that the operation driving part 522 of the first operating member 52 passes through the penetrating hole 31b1 and extends below the seat body 1, and the first driving end 5121 is inserted into the driving groove 523 of the first operating member 52.

[0234] With reference to Figure 22 and Figure 23 , in another embodiment, the driving groove 523 is elongated and extends along the moving direction of the first operating member 52. In this way, only when the moving distance of the first operating member 52 (i.e., the second operating member 56) reaches a certain value, the end of the driving groove 523 will push against the first driving end 5121 (i.e., it provides a certain amount of idle travel for the second operating member 56), avoiding the tilting adjustment device 5 being accidentally switched to the unlocked state due to accidental touch, especially avoiding the situation that the tilting adjustment device 5 is accidentally unlocked when a child is sitting on the child safety seat 100, thereby improving the riding safety of the child safety seat 100. As Figure 22 shown, in this embodiment, the first driving end 5121 forms a limiting hook part 5124, and the limiting hook part 5124 is locked with the end of the driving groove 523, so as to avoid accidental separation of the end of the driving groove 523 and the first driving end 5121 when they push against each other.

[0235] Combined with Figure 22 and Figure 24As shown, the engaging rod 511 extends in a substantially left - right direction (i.e., perpendicular to the first direction D1). To limit the pivoting stroke of the engaging mechanism 51, at least one mating rib 22 is provided with a limiting groove 224, and at least one end of the engaging rod 511 penetrates into the limiting groove 224. The limiting groove 224 is, for example, arc - shaped or strip - shaped. The engaging rod 511 is fixedly or movably connected to the driving member 512. In this embodiment, the engaging rod 511 is movably connected to the second driving end 5122 of the driving member 512. The engaging rod 511 passes through the second connection hole 5123 provided on the second driving end 5122 and penetrates into the limiting groove 224 provided on the rib main body 22. Limiting grooves 224 are provided on both mating ribs 22, and both ends of the engaging rod 511 penetrate into the limiting grooves 224 respectively.

[0236] Continue to refer to Figure 22 and Figure 24 , the second connection hole 5123 is strip - shaped, and the limiting groove 224 is strip - shaped. The extending direction of the second connection hole 5123 intersects with the extending direction of the limiting groove 224. Specifically, the extending direction of the second connection hole 5123 and the extending direction of the limiting groove 224 form an angle of approximately 90 degrees. The second connection hole 5123 extends substantially in the front - rear direction, and the limiting groove 224 extends substantially in the up - down direction. Thus, when the driving member 512 is driven to rotate, it can drive the engaging rod 511 to rotate around the pivot axis X. Of course, in other embodiments, the limiting groove 224 and the second connection hole 5123 can also be other shapes, as long as the engaging rod 511 can be driven to rotate around the pivot axis X within the set stroke. Referring again to Figure 24 , in this embodiment, the limiting groove 224 is formed in the rib housing 227 of the mating rib 22. Specifically, the limiting groove 224 is formed on the inner housing 227b.

[0237] As Figure 22 and Figure 24 shown, in another embodiment, the engaging mechanism 51 further includes an engaging return member 513. The engaging return member 513 is arranged between the mating rib 22 and the driving member 512. The engaging return member 513 is adapted to bias the driving member 512 to rotate the engaging mechanism 51 in the direction of the locking position. Specifically, the engaging return member 513 is, for example, a torsion spring. The engaging return member 513 is sleeved on the connecting pin shaft 501 on the mating rib 22. One end of the engaging return member 513 abuts against the mating rib 22, and the other end abuts against the driving member 512.

[0238] In the above - mentioned another embodiment, the operating principle of the tilt adjustment device 5 for angle adjustment is as follows.

[0239] Refer to Figure 21, when it is necessary to adjust the angle of the seat assembly 10 relative to the base 9, the second operating member 56 is pulled forward in the front-rear direction (i.e., along the first direction D1), and the second operating member 56 drives the first operating member 52 to move forward. When the first operating member 52 moves to a position where the end of the driving groove 523 abuts against the first driving end 5121 of the driving member 512, the end of the driving groove 523 drives the first driving end 5121 to rotate counterclockwise about the pivot axis X (see Figure 24 ) and drives the second driving end 5122 of the driving member 512 to rotate counterclockwise about the pivot axis X. Since the engaging rod 511 is connected to the second driving end 5122, the second driving end 5122 drives the engaging rod 511 to rotate counterclockwise about the pivot axis X, that is, the engaging rod 511 moves upward relative to the base 9, so that the engaging rod 511 disengages from the engaging recess 531 (i.e., the engaging rod 511 is disengaged from the engaging recess 531), enabling the fitting rib 22 to move in the front-rear direction relative to the base 9.

[0240] When the seat assembly 10 is adjusted to the desired angle, the second operating member 56 is released, and the operating portion 521 moves backward under the elastic restoring force of the operating return member 54. The end of the driving groove 523 of the first operating member 52 no longer abuts against the first driving end 5121 of the driving member 512. The driving member 512 rotates clockwise about the pivot axis X under the elastic restoring force of the engaging return member 513 and drives the second driving end 5122 of the driving member 512 to rotate clockwise about the pivot axis X. Since the engaging rod 511 is connected to the second driving end 5122, the second driving end 5122 drives the engaging rod 511 to rotate clockwise about the pivot axis X, that is, the engaging rod 511 moves downward relative to the base 9, so that the engaging rod 511 engages with the engaging recess 531, thereby locking the seat assembly 10 at the desired angle. Thus, the angle adjustment of the seat assembly 10 can be achieved.

[0241] Figure 35 A perspective view of a child safety seat 100 provided according to another embodiment of the present application is shown.

[0242] As Figures 35 to 36[[ shown, in another embodiment, the child safety seat 100 includes a seat assembly 10, a base 9, and a tilt adjustment device 5. The seat assembly 10 includes a backrest assembly 2 and a seat body 1. Among them, the backrest assembly 2 includes a backrest main body 21, a fitting rib 22, and a cross bar 23. The backrest assembly 2 is slidably disposed on the base 9 through the fitting rib 22, and the angle θ of the seat assembly 10 relative to the base 9 can be adjusted by adjusting the tilt adjustment device 5.

[0243] Combined with ​ 、 ​ and ​As shown, the mating rib 22 includes a rib main body 226 and a rib housing 227 that at least partially covers the rib main body 226. The rib housing 227 is detachably connected to the rib main body 226. The rib housing 227 includes an inner housing 227b and an outer housing 227a that are snap-fitted to each other. The first rib section 2261 of the rib main body 226 is received between the inner housing 227b and the outer housing 227a. The base 9 is provided with a mating member 98 that slidably mates with the mating rib 22. One of the mating rib 22 and the mating member 98 is provided with a mating recess 225, and the other of the mating rib 22 and the mating member 98 is provided with a mating protrusion 981. The mating recess 225 is arc-shaped and extends in the front-rear direction (i.e., the direction parallel to the first direction D1). The mating protrusion 981 is slidably connected within the mating recess 225. The mating member 98 includes a rear-end mating member 98a and a front-end mating member 98b. The mating recess 225 includes a rear-end mating recess 225a that is inserted and mated with the mating protrusion 981 of the rear-end mating member 98a and a front-end mating recess 225b that is inserted and mated with the mating protrusion 981 of the front-end mating member 98b. Both the front-end mating recess 225b and the rear-end mating recess 225a are located below the rib main body 226, that is, equivalently, both the front-end mating recess 225b and the rear-end mating recess 225a are located between the rib main body 226 and the base 9. Among them, the front-end mating recess 225b is provided on the inner housing 227b, and the opening of the front-end mating recess 225b faces the outer housing 227b. The rear-end mating recess 225a is provided on the outer housing 227a, and the opening of the rear-end mating recess 225a faces the inner housing 227b.

[0244] The child safety seat 100 in this embodiment is at least different from the child safety seat 100 in another embodiment as shown in ​ the above in the following aspects.

[0245] As ​As shown, the tilt adjustment device 5 is connected between the base 9 and the seat assembly 10, and at least a part of the tilt adjustment device 5 is located between the base 9 and the mating rib 22 of the backrest assembly 2. The tilt adjustment device 5 includes an engaging mechanism 51 and an operating component 520. The engaging mechanism 51 is connected between the base 9 and the mating rib 22 and can be switched between a locking position and an unlocking position. The operating component 520 is drivingly connected to the engaging mechanism 51, and the operating component 520 can be operated to drive the engaging mechanism 51 to switch from the locking position to the unlocking position. The operating component 520 is movably arranged on the seat body 1 (i.e., the child booster seat 3). The engaging mechanism 51 includes an engaging rod 511, a driving member 512 connected to the engaging rod 511, and a fastening member 53 provided with an engaging recess 531. The driving member 512 is pivotally connected to the two mating ribs 22 through a connecting pin 501. The engaging rod 511 is disposed on the driving member 512 and can pivot with the driving member 512. Optionally, the driving member 512 is pivotally connected to the two mating ribs 22 respectively through one connecting pin 501; or, the driving member 512 is pivotally connected to the corresponding mating rib 22 on each side respectively through two connecting pins 501, and the two connecting pins 501 are coaxially arranged.

[0246] Referring to ​ and ​ , the driving member 512 is located between the two mating ribs 22. The driving member 512 includes a driving body 5125, a first driving end 5121 and a second driving end 5122. The first driving end 5121 and the second driving end 5122 are respectively connected to both ends of the driving body 5125. Specifically, the first driving end 5121 and the second driving end 5122 are respectively connected to the front and rear ends of the driving body 5125. Among them, the first driving end 5121 extends substantially vertically (i.e., the up and down direction) upward. The second driving end 5122 extends substantially in the front and rear direction. In other words, the angle between the connection line between the first driving end 5121 and the pivot axis X of the driving member 512 and the connection line between the second driving end 5122 and the pivot axis X is approximately 90°. Optionally, the number of the first driving ends 5121 is two, and the number of the second driving ends 5122 is two. In other embodiments, the number of the first driving ends 5121 can be more than two or one. Similarly, the number of the second driving ends 5122 can be more than two or one. Returning to ​As shown, two first driving ends 5121 are respectively arranged on the left and right sides of the driving main body 5125, and two second driving ends 5122 are respectively arranged on the left and right sides of the driving main body 5125. Specifically, the two first driving ends 5121 and the two second driving ends 5122 are symmetrically arranged on the left and right sides of the driving main body 5125, so that the force on the driving member 512 can be more balanced and uniform. More specifically, in the left-right direction, the first driving end 5121 and the second driving end 5122 arranged on the same side of the driving main body 5125 are respectively located between the corresponding fitting ribs 22 and the fastening member 53. The engaging rod 511 is passed through the two first driving ends 5121. At least one end of the engaging rod 511 can pass through the first driving end 5121 and penetrate into the limiting groove 224 of the fitting rib 22. The engaging rod 511 can rotate relative to the limiting groove 224 along with the driving member 512, and the rotation stroke of the engaging rod 511 can be limited by the blocking action of the end of the limiting groove 224 on the engaging rod 511.

[0247] The driving main body 5125 is generally plate-shaped. The first driving end 5121 is integrally formed on the driving main body 5125, or is fixedly arranged on the driving main body 5125 by means of bonding, welding, etc., or is arranged on the driving main body 5125 by means of snap connection, etc., and the first driving end 5121 protrudes upward from the driving main body 5125. The second driving end 5122 is integrally formed on the driving main body 5125, or is fixedly arranged on the driving main body 5125 by means of bonding, welding, etc., or is arranged on the driving main body 5125 by means of snap connection, etc., and the second driving end 5122 extends backward from the driving main body 5125. The driving main body 5125 includes a first driving connection part 51251 and a second driving connection part 51252. The first driving connection part 51251 is connected between the two first driving ends 5121, so that the force on the driving member 512 can be more balanced. The second driving connection part 51252 is closer to the engaging rod 511 than the first driving connection part 51251, and the second driving connection part 51252 is located between the pivot axis X and the engaging rod 511. An operation hole 51253 is formed between the first driving connection part 51251 and the second driving connection part 51252, so as to facilitate pulling the second driving connection part 51252 through the operation hole 51253 to rotate the driving member 512, and then drive the engaging rod 511 to rotate. In this way, when the seat body 1 (i.e., the child booster seat 3) is not installed on the backrest assembly 2, the driving member 512 can also be rotated by operating the second driving connection part 51252, so as to adjust the angle θ between the backrest assembly 2 and the base 9. In this embodiment, a gap is formed between the engaging rod 511 and the driving member 512, which is more convenient for holding the second driving connection part 51252.

[0248] As ​As shown, the child safety seat 100 is also provided with a seat cloth pad 8. The seat cloth pad 8 includes a second cloth pad 81 and a first cloth pad 82. One end of the first cloth pad 82 is connected to the child booster seat 3 or the second cloth pad 81 and serves as a pivot end 823, allowing the first cloth pad 82 to flip between a closed position and an opened position. The second cloth pad 81 is provided with an avoidance recess 811. When the second cloth pad 81 is disposed on the child booster seat 3, the position of the avoidance recess 811 is opposite to the position of the cover body 33. Thus, the cover body 33 can be opened or closed through the avoidance recess 811 without disassembling the seat cloth pad 8. Specifically, the avoidance recess 811 is generally U-shaped, and the opening of the avoidance recess 811 faces the backrest main body 21 direction. The second cloth pad 81 is provided with a handrail sleeve portion 812, and the handrail sleeve portion 812 is used to be sleeved on the second handrail portion 34b behind the first sleeve hole 36, which can facilitate the installation of the second cloth pad 81 on the child booster seat 3 and prevent the second cloth pad 81 from shifting. In this embodiment, the second cloth pad 81 is provided with a first engaging portion 833, and the child booster seat 3 is provided with a second engaging portion 337. The first engaging portion 833 is adapted to be detachably connected to the second engaging portion 337, so that the second cloth pad 81 is detachably disposed on the child booster seat 3. Optionally, one of the first engaging portion 833 and the second engaging portion 337 is, for example, a buckle body, a convex column or a hanging buckle, and the other of the first engaging portion 833 and the second engaging portion 337 is, for example, a buttonhole or a hanging ring. Or, the first engaging portion 833 and the second engaging portion 337 are snap buttons or Velcro that can cooperate with each other.

[0249] When the first cloth pad 82 is in the closed position, the first cloth pad 82 covers the avoidance recess 811 of the second cloth pad 81 and covers the cover body 33. The second cloth pad 81 and the first cloth pad 82 together cover the child booster seat 3, so that the child booster seat 3 provides a relatively soft and comfortable seating surface. When the first cloth pad 82 is in the opened position, the cover body 33 is exposed from the avoidance recess 811, allowing the cover body 33 to be switched between an opened state and a closed state. By the first cloth pad 82 that is flipably disposed on the child booster seat 3, the cover body 33 can be switched between an opened state and a closed state without disassembling the seat cloth pad 8, so that it is more convenient to take or use the items (such as the connecting belt assembly 7) stored in the storage recess 314. Refer to ​The pivot end of the first cloth pad 82 is connected to the seat cushion body 31 of the child booster seat 3, and the rotation direction of the first cloth pad 82 from the covered position to the uncovered position is the same as the rotation direction of the cover body 33 from the closed state to the open state. Specifically, the pivot end of the first cloth pad 82 is connected to the seat cushion body 31 at a position close to the first side 331. More specifically, the pivot end is located behind the first side 331, which is equivalent to the pivot end being connected to the seat cushion body 31 at a position between the first side 331 and the backrest body 21. The pivot end of the first cloth pad 82 defines the pivot axis S of the second cloth pad. In combination ​ and ​ As shown, the pivot axis S of the first cloth pad 82 is located behind the second set of holes 348 of the armrest portion 34. That is, the pivot axis S of the first cloth pad 82 is closer to the backrest body 21 than the second set of holes 348. This can avoid mutual interference between the first cloth pad 82 and the connecting belt assembly 7 that may pass through the second set of holes 348. The opening of the avoidance recess 811 of the second cloth pad 81 faces the pivot axis S. The first cloth pad 82 is also provided with a crotch belt through hole 821, which is used for the crotch belt 45 to pass through (see ​ ). When the first cloth pad 82 is in the covering position, the crotch belt through-holes 821 are substantially aligned with the crotch belt holes 37. The number of the crotch belt through-holes 821 corresponds to the number of the crotch belt holes 37. ​ The first cloth pad 82 is also provided with an adjustment opening 822 for allowing a user to operate the adjustment mechanism 35. When the first cloth pad 82 is located at the covering position, the adjustment opening 822 is aligned with the safety belt adjustment release member 352 of the adjustment mechanism 35 to allow the safety belt adjustment release member 352 to be operated through the adjustment opening 822.

[0250] The first cloth pad 82 is detachably connected to the second cloth pad 81. The second cloth pad 81 is provided with a first connecting member 831, and the first cloth pad 82 is provided with a second connecting member 832, and the second connecting member 832 is suitable for being detachably connected to the first connecting member 831. Optionally, the first connecting member 831 and the second connecting member 832 are, for example, Velcro that can be bonded to each other. The second connecting member 832 is provided at an end of the second cloth pad away from the pivot end 823, and the position of the first connecting member 831 corresponds to the position of the second connecting member 832. Through the mutual cooperation of the first connecting member 831 and the second connecting member 832, the second cloth pad 81 and the first cloth pad 82 can be connected together to prevent the second cloth pad 81 from being offset or folded, etc.

[0251] In an embodiment not shown, the second cloth pad 81 may not be provided. The pivot end 823 of the first cloth pad 82 is connected to the seat cushion body 31. A second connecting member 832 is provided at one end of the first cloth pad 82 away from the pivot end 823, and a first connecting member 831 is correspondingly provided on the seat cushion body 31. In this way, the first cloth pad 82 can be flipably arranged on the seat cushion body 31, and when the first cloth pad 82 is in the covering position, the first cloth pad 82 can be fixed on the seat cushion body 31 by detachably connecting the first connecting member 831 and the second connecting member 832.

[0252] It should be noted that the seat cloth pad 8 provided in this embodiment can be applied to the child safety seat 100 provided in any of the above embodiments as needed, and this application does not make any restrictions on this.

[0253] According to the child carrier and the child booster seat provided by the embodiments of the present application, the child booster seat is detachably connected to the backrest assembly through a connecting mechanism, so that the child booster seat can be combined with the backrest assembly and the base as a child safety seat, and can also be disassembled and used alone as a child booster seat, thus meeting the usage requirements of children of different ages and increasing the utilization rate of the child safety seat. The connecting mechanism of the present application has a simple structure and is easy to operate, and can quickly disassemble and install the child booster seat.

[0254] According to the tilt adjustment device provided by the embodiments of the present application and the child carrier having the tilt adjustment device, by operating the tilt adjustment device, the seat assembly can be allowed or restricted to slide relative to the base, so that the tilt angle of the seat assembly relative to the base can be changed or locked, thereby realizing the adjustment of the tilt angle between the seat assembly and the base. The tilt adjustment device provided by the embodiments of the present application has a simple structure and is convenient to operate.

[0255] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0256] The above embodiments only express several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A child carrier, characterized in that: include: a backrest assembly including a crossbar; and Children's booster seat, Wherein, the child booster seat cushion comprises: A seat cushion body, the lower surface of which is provided with a matching groove suitable for accommodating the cross bar; and a connecting mechanism, which is arranged on the seat cushion body, and the child booster seat cushion can be connected to the backrest assembly through the connecting mechanism, wherein the connecting mechanism includes a locking member, the locking member is movably connected to the seat cushion body and can be switched between a release position and a locking position, and one end of the locking member forms a hook portion for clamping the cross bar; When the locking member is located at the locking position, the locking member is engaged with the backrest assembly to allow the child booster seat to be connected to the backrest assembly; when the locking member is located at the unlocking position, the locking member is disengaged from the backrest assembly to allow the child booster seat to be separated from the backrest assembly.

2. The child carrier according to claim 1, characterized in that: The locking member is pivotally connected to the seat cushion body and can pivot between a release position and a locking position. When the locking member is located at the locking position, the hook portion is inserted into the matching groove to be connected with the cross bar; when the locking member is located at the unlocking position, the hook portion is disengaged from the matching groove to release the connection with the cross bar.

3. The child carrier according to claim 2, characterized in that: The backrest assembly further comprises a backrest body and a matching rib, wherein the matching rib extends along the front-back direction, one end of the matching rib is connected to the backrest body, and the other end of the matching rib is connected to the crossbar. The matching groove comprises: a first groove portion extending from the rear end to the front end of the seat cushion body, wherein the two first groove portions are adapted to at least partially accommodate the matching ribs respectively; and a second groove portion, the second groove portion being located at a front end of the seat cushion body, an end of the second groove portion being connected to the first groove portion, and the second groove portion being adapted to at least partially accommodate the crossbar; Wherein, when the locking piece is located at the locking position, the hook portion is inserted into the second groove portion to engage with the cross bar, and the locking piece is arranged at the front end of the child booster seat; the rear end of the child booster seat is provided with a first engaging inclined surface for engaging with the backrest assembly, and the backrest body or the matching rib is provided with a second engaging inclined surface, and the second engaging inclined surface is arranged opposite to the cross bar; the second engaging inclined surface is suitable for abutting against the first engaging inclined surface of the child booster seat to engage the child booster seat between the backrest body and the matching rib.

4. The child carrier according to claim 1, characterized in that: The connecting mechanism also includes a release member, The release member is pivotally connected to the seat cushion body and can be switched between a first position and a second position to drive the locking member to pivot between the locking position and the release position. When the release member is located at the first position, the locking member is located at the locking position. When the release member is located at the second position, the locking member is located at the release position. The release member has a handle portion, and a receiving groove is provided on the upper surface of the seat cushion body; when the release member pivots to the first position, the handle portion is received in the receiving groove, and when the release member pivots to the second position, the handle portion of the release member is disengaged from the receiving groove.

5. The child carrier according to claim 4, characterized in that: The release member further has a pivoting recess, the locking member is provided with a driving portion, and the release member has a third position between the first position and the second position; When the release member pivots from the first position to the third position, the pivot recess of the release member does not abut the driving portion, and the locking member remains in the locked position; when the release member pivots from the third position to the second position, the pivot recess of the release member pushes the driving portion, so that the locking member pivots from the locked position to the release position.

6. The child carrier according to claim 4, characterized in that: The connecting mechanism further comprises a first elastic member, the first elastic member having: a first end connected to the seat cushion body, a second end connected to the release member, and a third end connected to the locking member, wherein the second end biases the release member toward the first position, and the third end biases the locking member toward the locking position; or The connecting mechanism also includes a second elastic member and a third elastic member, one end of the second elastic member is connected to the seat cushion body, and the other end of the second elastic member is connected to the release member; wherein the second elastic member biases the release member toward the first position, one end of the third elastic member is connected to the seat cushion body, and the other end of the third elastic member is connected to the locking member, wherein the third elastic member biases the locking member toward the locking position.

7. The child carrier according to any one of claims 4 to 6, characterized in that: The seat cushion body is provided with a storage recess and a cover body rotatably opened and closed on the storage recess, the release member is pivotally connected to the cover body, when the cover body is in a closed state, the release member is engaged with the locking member; when the cover body is in an open state, the release member is separated from the locking member. Wherein, the rotation direction of the cover body when it is opened is opposite to the rotation direction of the release member when it is released.

8. The child carrier according to claim 1, characterized in that: The child booster seat also includes a crotch strap hole, the upper surface of the seat body is provided with a storage recess suitable for storing articles, the opening of the storage recess is provided with an openable cover, the cover is provided with an opening and closing mechanism, and the opening and closing mechanism is used to lock the cover in a closed state. The crotch strap hole is penetratingly arranged on the cover body.

9. The child carrier according to claim 8, characterized in that: The storage recess is also provided with a connecting belt assembly, which includes a webbing and a connector, the connector is connected to the webbing and can be used to engage the car seat, one end of the cover body is pivotally connected to the seat cushion body, and the opening and closing mechanism is arranged at the other end of the cover body. When the cover body is in a closed state, the cover body is suitable for positioning at least a part of the connecting belt assembly in the storage recess. The webbing includes a first webbing and a second webbing, the two ends of the first webbing are respectively provided with connectors, one end of the second webbing is connected to the middle of the first webbing, and the other end of the second webbing is connected to the storage recess; The child booster seat cushion is provided with two armrests, each of which has a second set of holes and a first set of holes arranged in a front-to-back direction, the two second sets of holes are respectively used for the corresponding connectors to pass through, and the two first sets of holes are respectively used for the vehicle safety belts to pass through.

10. The child carrier according to claim 1, characterized in that: The child carrier further comprises an adjustment mechanism, wherein the adjustment mechanism comprises: A seat belt locking assembly, which is arranged on the backrest assembly and is used to lock the adjustment belt of the seat belt, and has a locked state and a released state; and A seat belt adjustment release member is movably disposed on the child booster seat, and has an operating section and a driving end. The operating section is exposed on the upper surface of the child booster seat, and the driving end is located on the lower surface of the child booster seat. The operating section can be operated to allow the seat belt locking assembly to be pushed by the driving end to switch from a locked state to a released state.

11. The child carrier according to claim 1, characterized in that: The child carrier also includes a base and a tilt adjustment device, wherein the backrest assembly is slidably disposed on the base to change the tilt angle of the child booster seat relative to the base. The backrest assembly includes a backrest body and a matching rib connected to the backrest body, wherein the matching rib is slidably arranged on the base. The tilt adjustment device comprises: a locking mechanism connected between the base and the matching rib and capable of switching between a locked position and an unlocked position, wherein when the locking mechanism is in the locked position, the matching rib is restricted from sliding relative to the base, and when the locking mechanism is in the unlocked position, the matching rib is allowed to slide relative to the base; and An operating component is movably arranged on the child booster seat, the operating component is drivingly connected to the engaging mechanism and the two can be separated from each other, and the operating component can be operated to drive the engaging mechanism to switch from a locked position to an unlocked position.

12. The child carrier according to claim 11, characterized in that: The operating components include: A first operating member, movably disposed on the child booster seat and drivingly connected to the engaging mechanism; and an operating reset member, the operating reset member being disposed between the first operating member and the child booster seat cushion, the operating reset member being adapted to bias the operating assembly to move the first operating member toward an initial position, The engaging mechanism comprises: Snap-on lever; a driving member pivotally disposed on one of the matching rib and the base, the driving member having a first driving end and a second driving end, the first driving end being drivingly connected to the first operating member, and the second driving end being connected to the engaging rod; and A plurality of engaging recesses, disposed on the other of the matching rib and the base; Wherein, when the locking mechanism is in the locking position, the locking rod is engaged with one of the multiple locking recesses to limit the sliding of the mating rib relative to the base, and when the locking mechanism is in the unlocking position, the locking rod is disengaged from the multiple locking recesses to allow the backrest assembly to slide relative to the base.

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