Child safety seat

Abstract

Disclosed is a child safety seat, comprising: a base; a rotating disc, which is rotatably arranged on the base along a first axis; a support member, which is arranged on the rotating disc and is configured to rotate with the rotating disc relative to the base; and a seat portion, which is configured to be driven by the rotating disc to rotate relative to the base. The seat portion is rotatably connected to the support member along a second axis, such that the seat portion can swing in a transverse direction of the seat portion.

Description

Child safety seats Technical Field

[0001] This disclosure relates to child safety seats, and in particular, to steerable child safety seats. Background Technology

[0002] Child safety seats provide a comfortable and safe sitting or lying space for children when traveling in vehicles. To accommodate different usage needs, steerable child safety seats exist, allowing them to switch between at least forward-facing and rear-facing modes. In forward-facing mode, the child in the safety seat faces forward of the vehicle, while in rear-facing mode, the child faces rearward of the vehicle. Such child safety seats typically include a base, a turntable, and a seat unit. The base is fixed to the vehicle's seat, and the seat unit is mounted on the turntable. The turntable is rotatably mounted on the base and can rotate the seat unit relative to the base, allowing the seat unit to be rotated to face forward of the vehicle (i.e., forward-facing mode) or to face away from the front of the vehicle (i.e., rear-facing mode).

[0003] To facilitate the loading and unloading of children into and out of vehicle seats, or for side-facing use, child safety seats exist that can be rotated to face the side of the vehicle (i.e., towards the door). When the seat faces the side of the vehicle, the child safety seat is in side-facing mode. Side-facing mode is typically the position of the child safety seat after rotating approximately 90 degrees from forward-facing or rear-facing mode. Because the seat of the child safety seat is directly facing the open door in side-facing mode, it facilitates easy entry and exit for children.

[0004] Child safety seats with multiple usage modes, such as side-facing mode, are often made with a shorter seat section to maintain a sufficient safe distance between the seat and the car door when used sideways, which is not conducive to larger children riding in them. Summary of the Invention

[0005] The purpose of this disclosure is to provide an improved child safety seat that enhances the comfort of children or facilitates the use of larger children in side-facing mode.

[0006] In one aspect of this disclosure, a child safety seat is provided, comprising: a base; a turntable rotatably disposed on the base along a first axis; a support member disposed on the turntable and adapted to rotate relative to the base with the turntable; and a seat portion adapted to rotate relative to the base by being driven by the turntable. The seat portion is rotatably connected to the support member along a second axis, such that the seat portion is swingable in the lateral direction of the seat portion.

[0007] In some embodiments, the base has a bearing surface inclined in a front-to-back direction, and the turntable is positioned on the bearing surface. When the seat portion rotates relative to the base to a position deviating from the front-to-back direction, the seat portion can swing to a horizontal position.

[0008] In some embodiments, the support member includes a first arm, a second arm, and an intermediate section located between the first arm and the second arm. The seat portion includes a front end and a rear end, the front end being rotatably connected to the first arm of the support member, and the rear end being rotatably connected to the second arm of the support member, such that a gap is formed between the seat portion and the turntable. The intermediate section of the support member is disposed on the turntable.

[0009] In some embodiments, the middle section of the support is fixedly connected to the turntable, or slidably connected to the turntable in the radial direction relative to the turntable.

[0010] In some embodiments, the turntable includes an upper cover and a lower cover, with the middle section of the support member sandwiched between the upper cover and the lower cover. The upper cover or the lower cover has a first receiving groove for holding the middle section, one of the first receiving groove and the middle section having a plurality of locking holes, and the other of the first receiving groove and the middle section having a locking pin, such that the support member can be lockably slid along the first receiving groove.

[0011] In some embodiments, the child safety seat further includes a locking element configured to prevent the swaying of the seat portion when the child safety seat is in a non-lateral mode, and to allow the swaying of the seat portion when the child safety seat is in a lateral mode.

[0012] In some embodiments, the locking member is disposed on the turntable and includes an engaging pin and a first driving member. The first driving member is disposed between the turntable and the base and is adapted to drive the engaging pin to move between an engaged position and a disengaged position. The seat portion is provided with an engaging hole. When the turntable rotates to a lateral position, the first driving member drives the engaging pin to the disengaged position, thereby disengaging it from the engaging hole; and when the turntable rotates to a non-lateral position, the engaging pin moves to the engaged position, thereby engaging with the engaging hole.

[0013] In some embodiments, the base has an annular inner edge, and the turntable is rotatably fitted onto the inner edge; the inner edge is provided with a clearance groove, and the first driving member has a push protrusion that slidably extends out of the outer peripheral surface of the turntable. When the turntable rotates to a lateral position, the push protrusion extends into the clearance groove, thereby driving the engaging pin to a disengaged position. When the turntable rotates to a non-lateral position, the inner edge abuts against the push protrusion, thereby driving the engaging pin to an engaged position.

[0014] In some embodiments, the child safety seat further includes a limiting mechanism configured to restrict the swing of the seat portion within a predetermined swing angle range. The limiting mechanism includes a limiting groove and a limiting protrusion. The limiting groove is disposed on one of the bottom of the seat portion and the top of the turntable, and the limiting protrusion is disposed on the other of the bottom of the seat portion and the top of the turntable. The limiting protrusion is located in the limiting groove, and when the seat portion swings to the predetermined swing angle, the sidewall of the limiting protrusion is adapted to contact the sidewall of the limiting groove to limit further increase in the swing angle of the seat portion.

[0015] In some embodiments, the turntable includes an upper cover and a lower cover, the middle section of the support member is clamped between the upper cover and the lower cover, the lower surface of the upper cover is formed with a first receiving groove for clamping the middle section, and the upper surface of the upper cover is formed with the limiting protrusion corresponding to the first receiving groove.

[0016] In some embodiments, the first arm of the support is higher than the second arm of the support.

[0017] In some embodiments, the width of the limiting groove gradually increases from one end of the limiting groove near the first support arm to the other end of the limiting groove near the second support arm.

[0018] In some embodiments, the support member is slidably connected to the turntable. The child safety seat further includes: a locking mechanism having a locked state and an unlocked state, wherein when the locking mechanism is in the locked state, the locking mechanism prevents the support member from sliding relative to the turntable, and when the locking mechanism is in the unlocked state, the locking mechanism allows the support member to slide relative to the turntable; and a second operating member configured to operate to switch the locking mechanism from the locked state to the unlocked state.

[0019] In some embodiments, the second operating member is sleeved on the support member and is slidable relative to the support member. The support member is a hollow tubular structure, and the locking mechanism is disposed inside the support member. When the second operating member is operated to slide relative to the support member, the locking mechanism switches from the locked state to the unlocked state.

[0020] In some embodiments, the second actuating member is connected to the locking mechanism via a second driving member. The second driving member has a sliding cavity within which the locking mechanism is slidably connected relative to the second driving member. The second driving member includes two shift pins offset in the lateral direction, and movement of the second driving member is adapted to drive the two shift pins to move between an extended position and a retracted position, respectively.

[0021] In some embodiments, the child safety seat further includes a first locking member and a second locking member. The first locking member is configured to prevent the seat portion from swinging when the child safety seat is in a forward-facing or rear-facing mode, and to allow the seat portion to swing when the child safety seat is in a side-facing mode. The second locking member is configured to prevent the seat portion from swinging when the child safety seat is in a side-facing mode, and to allow the seat portion to swing when the child safety seat is in a forward-facing or rear-facing mode.

[0022] In another aspect of this disclosure, a child safety seat is provided, comprising: a base; and a seat portion movably mounted to the base. When the child safety seat is in side-facing use, the seat portion is movable relative to the base in a direction away from the adjacent door.

[0023] In some embodiments, the child safety seat further includes a locking mechanism comprising: a locking member for locking the seat portion in a position away from an adjacent door; and a release member for releasing the locking of the seat portion.

[0024] In some embodiments, the seat portion has a seat portion and a backrest portion. The seat portion is configured to move from a first position to a second position in a direction toward the backrest portion.

[0025] In some embodiments, the child safety seat further includes a turntable rotatably disposed on the base. The seat portion is mounted to the base via the turntable. The turntable or the base is provided with a slide rail, and the seat portion is configured to move between a first position and a second position via the slide rail when the turntable rotates the seat portion to a lateral position.

[0026] In some embodiments, the slide rail is disposed on the base, and the turntable is provided with at least two sliding pins that slidably engage with the slide rail. During the rotation of the turntable, the turntable can be driven to slide laterally relative to the base through the sliding engagement of the at least two sliding pins with the slide rail, thereby moving the seat portion from the first position to the second position.

[0027] In some embodiments, the slide rail includes a first slide groove and a second slide groove, the extending directions of the first slide groove and the second slide groove being perpendicular to each other. The at least two sliding pins include a first sliding pin and a second sliding pin, the first sliding pin being configured to slide within the first slide groove, and the second sliding pin being configured to slide within the second slide groove. When the first sliding pin slides along the first slide groove towards the center of the bearing surface of the base, the turntable drives the second sliding pin to slide along the second slide groove away from the center of the bearing surface of the base, thereby moving the seat portion from the first position to the second position.

[0028] In some embodiments, the slide rail is a cross-shaped slide groove disposed on the base. The cross-shaped slide groove includes a front slide groove, a right slide groove, a rear slide groove, and a left slide groove that communicate with each other. The longitudinal slide groove formed by the front slide groove and the rear slide groove is perpendicular to the transverse slide groove formed by the right slide groove and the left slide groove. The at least one sliding pin includes a first sliding pin and a second sliding pin. The first sliding pin and the second sliding pin are arranged along the radial direction of the turntable, and the first sliding pin is closer to the front end of the turntable than the second sliding pin. The first sliding pin is configured to slide within the longitudinal slide groove, and the second sliding pin is configured to slide within the transverse slide groove.

[0029] In some embodiments, when the second sliding pin slides to the end of the transverse groove and the first sliding pin slides to the intersection of the longitudinal groove and the transverse groove, the turntable rotates to the lateral position.

[0030] In some embodiments, the base includes a base cover, and the cross-shaped sliding groove is disposed on the base cover. A cross-shaped groove is provided on the bottom surface of the base cover at a position corresponding to the cross-shaped sliding groove, the cross-shaped groove opening downwards, and the cross-shaped sliding groove being formed on the top surface of the cross-shaped groove. The cross-shaped groove includes a front groove, a right groove, a rear groove, and a left groove corresponding to the front groove, the right groove, the rear groove, and the left groove. The longitudinal groove formed by the front groove and the rear groove is perpendicular to the transverse groove formed by the right groove and the left groove, and they communicate at their intersection. The base is provided with a first slider and a second slider. The first slider is configured to slide along the longitudinal groove, and the second slider is configured to slide along the transverse groove. A first sliding pin is connected to the first slider, and a second sliding pin is connected to the second slider.

[0031] In some embodiments, the slide rail is disposed between the turntable and the seat portion, allowing the seat portion to slide relative to the turntable. When the turntable rotates to a lateral position relative to the base, the seat portion can slide relative to the turntable via the slide rail to move from the first position to the second position.

[0032] In some embodiments, the slide rail is disposed at the bottom of the turntable. A fifth sliding pin is disposed at the top of the base, which slides in conjunction with the slide rail. When the turntable rotates to a lateral position, the turntable can slide relative to the base through the sliding engagement of the fifth sliding pin and the slide rail, thereby moving the seat portion from the first position to the second position.

[0033] In some embodiments, the base is provided with a forward locking hole, a rear locking hole, a first lateral locking hole, and a second lateral locking hole. The turntable is provided with a first locking pin adapted to selectively engage with any one of the forward locking hole, the rear locking hole, the first lateral locking hole, and the second lateral locking hole. The first lateral locking hole and the second lateral locking hole are located at different distances from the center of the bearing surface of the base relative to either the forward or rear locking hole.

[0034] In some embodiments, the base includes a limiting mechanism configured such that when the seat portion moves between the first position and the second position, the limiting mechanism engages with the turntable from above with a clearance.

[0035] In some embodiments, the child safety seat further includes an anti-misuse mechanism, which includes a blocking member. The blocking member is movable between an extended position and a retracted position. When the blocking member is in the extended position, it prevents the first sliding pin from sliding along the first groove to prevent the turntable from turning from a lateral position to a forward position. When the blocking member is in the retracted position, it allows the turntable to rotate between the lateral position and the forward position.

[0036] In some embodiments, the child safety seat further includes a support member disposed on the turntable and adapted to rotate with the turntable relative to the base. The seat portion is rotatably connected to the support member. The base has a bearing surface inclined in a front-rear direction, and the turntable is positioned on the bearing surface. When the seat portion rotates with the turntable relative to the base to a position deviating from the front-rear direction, the seat portion can swing to a horizontal position. Attached Figure Description

[0037] The features and advantages of this disclosure will be better understood through the following detailed description of exemplary embodiments utilizing the principles of this disclosure, with reference to the accompanying drawings:

[0038] Figure 1 is a side view of a child safety seat according to an embodiment of the present disclosure, wherein the child safety seat is in a forward-facing mode;

[0039] Figure 2 is a schematic diagram of the child safety seat shown in Figure 1 from another perspective;

[0040] Figure 3 is a side view of the child safety seat shown in Figure 1 in rear-facing mode;

[0041] Figure 4 is a side view of the child safety seat shown in Figure 1 in the side-facing mode;

[0042] Figure 5 is a side view of the child safety seat shown in Figure 1 in another lateral orientation mode;

[0043] Figure 6 is a cross-sectional view along line U1-U1 in Figure 2;

[0044] Figures 6A, 6B, and 6C are enlarged views of areas H, I, and J of the child safety seat in Figure 6, respectively.

[0045] Figure 7A schematically illustrates a support member slidably connected to a turntable according to another embodiment of the present disclosure;

[0046] Figure 7B is a cross-sectional view along line U2-U2 in Figure 7A;

[0047] Figure 8 is a schematic diagram of a seat portion according to another embodiment of the present disclosure;

[0048] Figure 9 is a schematic diagram showing the bottom of a seat portion according to an embodiment of the present disclosure;

[0049] Figure 10 is a schematic diagram showing the top of a turntable according to an embodiment of the present disclosure, wherein a child safety seat is in a forward-facing mode;

[0050] Figure 10A is a schematic diagram showing the top of the turntable according to another embodiment of the present disclosure, wherein the child safety seat is in a forward-facing mode;

[0051] Figure 11 is a schematic diagram showing the top of a turntable according to an embodiment of the present disclosure, wherein a child safety seat is in a side-facing mode;

[0052] Figure 12 is a schematic diagram of part of the structure of the child safety seat shown in Figure 11 with the turntable removed;

[0053] Figure 13A is a cross-sectional view showing one side of a locking member according to an embodiment of the present disclosure;

[0054] Figure 13B is a side view showing the other side of a locking member according to an embodiment of the present disclosure;

[0055] Figure 14 is a schematic diagram of a child safety seat according to another embodiment of the present disclosure, wherein the child safety seat is in a forward-facing mode;

[0056] Figure 15 is a side view of the child safety seat shown in Figure 14;

[0057] Figure 16 is a side view of the child safety seat shown in Figure 14 in rear-facing mode;

[0058] Figure 17 is a side view of the child safety seat shown in Figure 14 in lateral mode;

[0059] Figure 18 is a bottom view of the seat section in Figure 14;

[0060] Figure 19 is a schematic diagram of the child safety seat in Figure 14 after the seat section has been removed;

[0061] Figure 20 is a cross-sectional view along line U3-U3 in Figure 14;

[0062] Figure 21 is a schematic diagram of a child safety seat according to another embodiment of the present disclosure, wherein the seat portion is in a relatively upright position;

[0063] Figure 22 is a side view of the child safety seat shown in Figure 21;

[0064] Figure 23 is a side view of the child safety seat shown in Figure 21 when the seat is in a relatively flat position;

[0065] Figure 24 is a schematic diagram of the child safety seat in Figure 23 after the seat section has been removed;

[0066] Figure 25 is a schematic diagram of the child safety seat in Figure 24 after the decorative cover has been removed;

[0067] Figure 26 is a cross-sectional view along line U4-U4 in Figure 25;

[0068] Figure 27 is a schematic diagram of an assembly of a locking mechanism and a second fixed base according to an embodiment of the present disclosure, wherein the locking mechanism is in a locked state;

[0069] Figure 28 is a schematic diagram of the assembly shown in Figure 27 when the locking mechanism is in the unlocked state;

[0070] Figure 29 is an exploded view of the assembly shown in Figure 27;

[0071] Figure 30 is a schematic diagram of a child safety seat according to an embodiment of the present disclosure, wherein the child safety seat is in a forward-facing mode;

[0072] Figure 31 is a schematic diagram of the child safety seat shown in Figure 30 in rear-facing mode;

[0073] Figure 32 is a schematic diagram of the child safety seat shown in Figure 30 in the left-facing lateral mode;

[0074] Figure 33 is a schematic diagram of the child safety seat shown in Figure 30 in the right-facing lateral mode;

[0075] Figure 34 is a schematic diagram of the child safety seat shown in Figure 30 from another perspective;

[0076] Figure 35A is a schematic diagram of the child safety seat shown in Figure 30 after the seat and support components have been removed;

[0077] Figure 35B is a schematic diagram of the child safety seat shown in Figure 31 after the seat and support components have been removed;

[0078] Figure 35C is a schematic diagram of the child safety seat shown in Figure 3 after the seat and support components have been removed;

[0079] Figure 35D is a schematic diagram of the child safety seat shown in Figure 33 after the seat and support components have been removed;

[0080] Figure 36 is a bottom schematic diagram of a turntable according to an embodiment of the present disclosure;

[0081] Figure 37 is a schematic diagram of a base according to an embodiment of the present disclosure;

[0082] Figures 38A to 38D schematically show the positions of the first and second sliding pins in the cross groove in the forward, left, backward, and right modes, respectively.

[0083] Figure 39 is a schematic diagram of the bottom of the base cover in Figure 37;

[0084] Figure 40 is a cross-sectional view along line U5-U5 in Figure 35C;

[0085] Figure 41 is a schematic diagram of a turntable according to an embodiment of the present disclosure;

[0086] Figure 42 is a schematic diagram of the turntable shown in Figure 41 with a support structure installed;

[0087] Figure 43 is a schematic diagram of the turntable shown in Figure 41 after the turntable cover has been removed;

[0088] Figure 44 is a schematic diagram of part of the structure in Figure 43;

[0089] Figure 45 is a cross-sectional view along line U6-U6 in Figure 43, wherein the first locking pin is in the locked position;

[0090] Figure 46 is a cross-sectional view along line U6-U6 in Figure 43, wherein the first locking pin is in the unlocked position;

[0091] Figure 47 is a schematic diagram of the child safety seat shown in Figure 31 after the seat and support components have been removed, wherein the anti-misuse operation component is in the forward mode prohibited position.

[0092] Figure 48 is a schematic diagram of the child safety seat shown in Figure 31 after the seat part and support are removed, wherein the anti-misuse operation device is in the forward-facing mode permitted position.

[0093] Figure 49 is a schematic diagram of the blocking component in the extended position;

[0094] Figure 50 is an enlarged view of region A in Figure 49;

[0095] Figure 51 is a schematic diagram of the blocking component in the retracted position;

[0096] Figure 52 is an enlarged view of region B in Figure 51;

[0097] Figure 53 is a schematic diagram of a turntable according to another embodiment of the present disclosure;

[0098] Figure 54 is a schematic diagram of a base according to another embodiment of the present disclosure;

[0099] Figure 55 is a schematic diagram of the base shown in Figure 54 from another perspective;

[0100] Figure 56 is a schematic diagram of the base shown in Figure 54 from another perspective;

[0101] Figure 57 is a schematic diagram of the base shown in Figure 54 after the base cover has been removed;

[0102] Figure 58 is a schematic diagram of part of the structure of the turntable described in Figure 53 after the turntable cover and bracket are removed, wherein the pusher is in the retracted position;

[0103] Figure 59 is a schematic diagram of part of the structure of the turntable described in Figure 53 after the turntable cover and bracket are removed, wherein the pusher is in the extended position;

[0104] Figures 60A and 60B are schematic diagrams showing the forward locking mechanism in the engaged and disengaged positions, respectively, when the child safety seat is in forward-facing mode.

[0105] Figures 61A and 61B are schematic diagrams showing the rearward locking mechanism in the engaged and disengaged positions, respectively, when the child safety seat is in rear-facing mode.

[0106] Figures 62A to 62C are schematic diagrams of the steering of a child safety seat according to another embodiment of the present disclosure. In Figure 62A, the child safety seat is in a forward-facing mode and the seat portion is in a first position relative to the turntable. In Figure 62B, the child safety seat is in a right-facing mode and the seat portion is in a second position relative to the turntable. In Figure 62C, the child safety seat is in a right-facing mode and the seat portion is in a third position relative to the turntable.

[0107] Figures 63A to 63C are schematic diagrams of the steering of a child safety seat according to another embodiment of the present disclosure. In Figure 63A, the turntable is in a forward position and in a first position relative to the base. In Figure 63B, the turntable is in a right-facing position and in a first position relative to the base. In Figure 63C, the turntable is in a right-facing position and in a second position relative to the base.

[0108] Explanation of reference numerals in the attached figures:

[0109] A10. Child safety seat;

[0110] A100, base; A110, inner edge; A111, clearance groove;

[0111] A200, Seat section; A210, Front end; A211, Front end connector; A2111, Front end connection hole; A220, Rear end; A221, Rear end connector; A2211, Rear end connection hole; A230, First operating member; A240, Limiting groove; A250, Engaging hole; A260, First part; A270, Second part; A271, Front end; A272, Rear end;

[0112] A300, Turntable; A310, Top cover; A311, Protrusion; A312, Top surface; A320, Lower cover; A330, Limiting protrusion; A340, First receiving groove; A350, Locking pin; A360, Reset component; A370, Traction component; A380, Bracket; A381, Bushing; A382, Roller; A383, Gear hole; A384, Limiting groove;

[0113] A400, Support component; A410, First support arm; A411, First connecting shaft; A412, First connector; A413, Damping spring; A420, Second support arm; A421, Second connecting shaft; A422, Second connector; A430, Intermediate section; A431, Fixing component; A440, Locking hole; A450, Slide rod;

[0114] A500, Locking element; A500a, First locking element; A500b, Second locking element; A510, Engaging pin; A510a, First engaging pin; A510b, Second engaging pin; A520, First fixing seat; A521, Guide groove; A522, First pin; A530, First driving element; A531, Pushing protrusion; A532, First driving inclined groove; A540, First elastic element;

[0115] A600, Decorative cover; A610, Cover body; A620, Front baffle; A630, Rear baffle; A640, Second receiving slot;

[0116] A700, Locking mechanism; A710, Position pin; A720, Second fixing seat; A721, Receiving cavity; A722, Guide groove; A730, Second latch;

[0117] A810, Second operating element; A820, Second driving element; A821, Sliding cavity; A822, Second driving groove; A830, Second elastic element;

[0118] Z1, first axis; Z2, second axis;

[0119] B1000, child safety seat;

[0120] B1100, Base; B1111, Front end; B1112, Rear end; B1120, Support foot; B1130, Limiting mechanism; B1131, First limiting mechanism; B1132, Second limiting mechanism; B1140, Base cover; B1141, Forward locking hole; B1142, Rear locking hole; B1143, First lateral locking hole; B1144, Second lateral locking hole; B1150, Cross slide groove; B1150a, Front slide groove; B1150b, Right slide groove; B1150c, Rear slide groove; B1150d, Left slide groove; B1150e 1. Intersection; B1151. Cross groove; B1151a. Front groove; B1151b. Right groove; B1151c. Rear groove; B1151d. Left groove; B1152. Limiting rib; B1153. Abutment rib; B1154a. First slider; B1154b. Second slider; B1156. Blocking member; B1157. Second elastic member; B1158. Elastic member mounting base; B1160. Forward locking member; B1161. Third elastic member; B1170. Rear locking member; B1171. Fourth elastic member; B1180. Base cover;

[0121] B1200, Seat section; B1210, Seat section; B1220, Backrest section; B1230, Lock release mechanism;

[0122] B1300, Turntable; B1311, First sliding pin; B1312, Second sliding pin; B1320, First locking pin; B1331, Turntable upper cover; B1332, Turntable lower cover; B1333, Front and rear locking holes; B1340, Bracket; B1341a, First connecting piece; B1341b, Second connecting piece; B1342, First guide groove; B1343, Second guide groove; B1344, Third guide groove; B1351, First driving component; B1352, Second driving component; B1353, First driving inclined groove; B1361, First sliding rod; B1362, Second sliding rod; B1370, Driving rod; B1380, First elastic element; B1390, Pushing component; B1391, Pushing part; B1392, Elastic arm;

[0123] B1400, Support component; B1410, Operating component;

[0124] B1510, First traction component;

[0125] B1600, Anti-misuse operating component; B1610, First marking; B1620, Second marking;

[0126] B2110, First slide rail; B2120, Second slide rail; B2130, Slide locking hole;

[0127] B2210, Third sliding pin; B2220, Fourth sliding pin; B2230, Second locking pin;

[0128] B3110, Third slide rail; B3120, Third locking pin; B3130, Fifth elastic element;

[0129] B3210, the fifth sliding pin. Detailed Implementation

[0130] When a feature or element is referred to herein as "on another feature or element," it may be directly on the other feature or element, or there may be intermediate features and / or elements present. Conversely, when a feature or element is referred to herein as "directly" on another feature or element, there are no intermediate features or elements present. It should also be understood that when a feature or element is referred to herein as "connected," "attached," or "joined" to another feature or element, it may be directly connected, attached, or joined to the other feature or element, or there may be intermediate features or elements present. Conversely, when a feature or element is referred to herein as "directly connected," "directly attached," or "directly joined" to another feature or element, there are no intermediate features or elements present.

[0131] While the terms “first” and “second” are used herein to describe various features or elements, these features or elements should not be limited by these terms unless otherwise specified. These terms are used to distinguish one feature or element from another. Thus, the first feature or element discussed below may be referred to as the second feature or element, and similarly, the second feature or element discussed below may be referred to as the first feature or element. In this document, “multiple” means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined. Words such as “a” or “one” do not necessarily indicate a quantity limitation. Words such as “including” or “contains” mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Words such as “connected” or “linked” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Above,” “below,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the terms “upward,” “downward,” “vertical,” and “horizontal” used in this article are for illustrative purposes only.

[0132] In this document, "front" refers to the side of the child safety seat facing the front of the vehicle when it is secured to the seat; "rear" refers to the side facing the rear of the vehicle when it is secured to the seat; "left" refers to the left side when viewed from the rear of the child safety seat; and "right" refers to the right side when viewed from the rear of the child safety seat. Other directional terms involving "front," "rear," "left," and "right" mentioned in the document have similar meanings. "Lateral" refers to the direction roughly parallel to the child's shoulders when the child is seated in the child safety seat. When the child safety seat is in forward-facing or rear-facing mode, "latency" generally points to the "left" or "right." When the child safety seat is in side-facing mode, "latency" generally points to the "front" or "rear." It should be noted that unless otherwise explicitly stated or limited, the directional terms "front," "rear," "left," and "right" for various components of the child safety seat in this document are based on the orientations shown in the accompanying drawings. These directional terms will change accordingly when the components of the child safety seat are rotated. In the accompanying drawings, arrows L and R schematically indicate the "left" and "right" directions, and arrows F and B schematically indicate the "front" and "back" directions. These directional terms are used only to make the description of the embodiments of this disclosure clearer and are not intended to unduly limit the scope of protection of this disclosure.

[0133] Child safety seats are designed specifically for children of different weights and ages to provide safety protection within a vehicle, effectively reducing the risk of injury to children in traffic accidents. Child safety seats can be secured to the vehicle seat using ISOFIX connectors or the car's seatbelt. With advancements in safety standards and technology, multi-functional child safety seats have emerged on the market, adaptable to various seating configurations. These seats offer forward-facing or rear-facing modes, and some also provide a side-facing mode. A forward-facing mode means the child in the safety seat faces the front of the vehicle while it is in motion; a rear-facing mode means the child faces the rear of the vehicle; and a side-facing mode means the child faces the left or right side of the vehicle (approximately perpendicular to the direction of travel).

[0134] According to one known child safety seat, it includes a base and a seat portion that can rotate relative to the base. The base has a slide rail, and when the seat portion is rotated so that its opening faces the door, the seat portion can slide outwards along the slide rail towards the door, thus facilitating the loading and unloading of a child from outside the vehicle when the vehicle is not in motion. This type of child safety seat does not have a side-facing mode, meaning it cannot be used sideways while the vehicle is in motion. According to another known child safety seat, it includes a base and a seat portion that can rotate relative to the base. The seat portion has a side-facing mode, meaning that when the vehicle is in motion, the seat portion carrying the child can be fixed in a lateral position perpendicular to the vehicle's direction of travel. When the seat portion is fixed in the side-facing position, the opening of the seat portion faces either the left or right side of the vehicle. Since the length of the seat portion is often greater than its width, when the seat portion is used in the side-facing mode, the distance between the end of the seat portion in the length direction and the door is relatively short, making it difficult to provide sufficient buffer space. Some designers have attempted to increase the distance between the end of the seat portion and the door in the side-facing mode by reducing the length of the seat portion, but such child safety seats are not suitable for larger children.

[0135] It is particularly important to note that the techniques discussed above provide the discloser's understanding of the art and the current state of practice; however, it should be understood that the specific embodiments and details mentioned herein are not intended to constitute part of the prior art. Therefore, those skilled in the art should recognize that, unless specifically stated otherwise, any specific implementation mentioned herein should not be considered prior art.

[0136] In one aspect of this disclosure, a child safety seat is provided, comprising a base, a turntable, a seat portion, and a support member. The turntable is rotatably disposed on the base along a first axis, and the seat portion is adapted to rotate relative to the base by being driven by the turntable. The support member is disposed on the turntable and adapted to rotate relative to the base with the turntable. The seat portion is rotatably connected to the support member along a second axis, such that the seat portion is swingable in the lateral direction of the seat portion. For example, when the child safety seat is in a side-facing mode, the seat portion can swing from a tilted position in the lateral direction to a horizontal position. In this way, the child placed in the child safety seat will not tilt to the right or left, thereby improving the child's riding comfort when using the child safety seat in a side-facing position.

[0137] In another aspect of this disclosure, a child safety seat is provided, including a base and a seat portion movably mounted on the base. When the child safety seat is used in a side-facing mode, the seat portion can move relative to the base in a direction away from the adjacent door. For example, when the child safety seat is installed on the right rear seat of a vehicle, the right rear door of the vehicle is the adjacent door to the child safety seat. In the side-facing mode, the seat portion can move relative to the base in a direction away from the right door (i.e., to the left). This allows sufficient clearance between the seat portion and the door to be maintained without reducing the size of the seat portion, improving the child's riding comfort when using the child safety seat in a side-facing position.

[0138] Figures 1 and 2 illustrate a child safety seat A10 in forward-facing mode according to an embodiment of the present disclosure. The child safety seat A10 includes a base A100, a seat portion A200, and a turntable A300. The base A100 is adapted to be fixed to a vehicle seat. Specifically, the base A100 can be placed on the seat surface of the vehicle seat and is fixedly connected to the vehicle seat via, for example, an ISOFIX (International Standards Organization FIX) interface. The turntable A300 is rotatably disposed on the base A100 along a first axis Z1 and is adapted to drive the seat portion A200 to rotate relative to the base A100 along the first axis Z1, thereby switching between forward-facing, side-facing, and rear-facing modes. Optionally, the base A100 has a bearing surface inclined in the longitudinal direction, and the turntable A300 is positioned on the bearing surface; therefore, the turntable A300 is also inclined in the longitudinal direction. In the event of a collision, the inclined bearing surface design helps to disperse the impact force on the connection structure between the seat portion A200 and the base A100 in a traffic accident. In this embodiment, the turntable A300 is a roughly circular plate, with the first axis Z1 passing through the center of the turntable A300. The turntable A300 can rotate A360 degrees relative to the base A100 around the first axis Z1. Correspondingly, driven by the turntable A300, the seat part A200 can also rotate 360 ​​degrees relative to the base A100, allowing the child safety seat A10 to freely switch between forward-facing mode, the rear-facing mode shown in Figure 3, and the side-facing mode shown in Figure 4. In this document, "forward-facing mode" refers to the mode in which the child in the child safety seat A10 faces forward of the vehicle, "rear-facing mode" refers to the mode in which the child in the child safety seat A10 faces rear of the vehicle, and "side-facing mode" refers to the mode in which the child in the child safety seat A10 faces the left or right side of the vehicle. Specifically, the side-facing mode means that when the door on the side closest to the child safety seat A10 is opened, the seat portion A200 of the child safety seat A10 can face the open door, making it easy to put on or take off the child safety seat A10. When the child safety seat A10 is in "forward-facing mode," the opening direction of the seat portion A200 faces forward as shown in the diagram; when the child safety seat A10 is in "side-facing mode," the opening direction of the seat portion A200 (or the direction the child faces) forms a certain angle with the fore-and-aft direction, for example, an angle of 90 degrees, or an angle range of 70 to 110 degrees.

[0139] In this embodiment, the child safety seat A10 may further include a rotation locking mechanism (not shown in Figures 1 to 4), which selectively prevents or allows rotation of the turntable A300 relative to the base A100. Exemplarily, the rotation locking mechanism includes a locking pin disposed on the base A100 and a locking hole disposed on the bottom surface of the turntable A300. When the child safety seat A10 is in a "forward-facing mode" or a "rear-facing mode," the locking pin aligns with and extends into the locking hole, thereby locking the child safety seat A10 in the "forward-facing mode" or "rear-facing mode." The seat portion A200 is provided with a first operating member A230. The first operating member A230 can be operated by a user to switch the rotation locking mechanism between a locked state and an unlocked state. When the rotation locking mechanism is in the locked state, rotation of the turntable A300 relative to the base A100 is prevented, while when the rotation locking mechanism is in the unlocked state, rotation of the turntable A300 relative to the base A100 is allowed. In other embodiments, the first operating element A230 may also be disposed on the base A100.

[0140] As shown in Figures 1 and 3, in both forward-facing and rearward-facing modes, the seat portion A200 is inclined to the base A100 in its longitudinal direction. Specifically, the bottom surface of the seat portion A200 is inclined rearward to the bearing surface of the base A100. The bearing surface at the top of the base A100 is inclined in the longitudinal direction, and correspondingly, the turntable A300 located on the top surface of the base A100 is also inclined in the longitudinal direction. For example, the plane containing the turntable A300 forms an angle of approximately 10 degrees with the longitudinal direction. Therefore, when the seat portion A200 is fixed above the turntable A300, the seat portion A200 is inclined in the longitudinal direction. When the seat portion A200 rotates relative to the base A100, putting the child safety seat A10 into a side-facing mode, the lateral direction of the seat portion A200 corresponds to the longitudinal direction. Traditional child safety seats, in side-facing mode, tend to tilt laterally (i.e., to the left or right), which can cause discomfort for the child in the seat.

[0141] In this embodiment, when the seat portion A200 rotates relative to the base A100 to a position deviating from the front-to-back direction, the seat portion A200 is capable of pivoting about the lateral direction. For example, when the child safety seat A10 is in side-facing mode, the seat portion A200 can swing from a tilted position in the lateral direction to a horizontal position. In this document, describing a device as being in a “tilted position” means that the device is in a position where its longitudinal or lateral axis is deviated from the horizontal plane when the device is placed on a horizontal plane, and describing a device as being in a “horizontal position” means that the device is in a position where its longitudinal or lateral axis is parallel to the horizontal plane when the device is placed on a horizontal plane.

[0142] In this embodiment, the seat portion A200 is positioned above and spaced apart from the turntable A300 to allow the seat portion A200 to swing relative to the base A100 in the lateral direction. For example, the seat portion A200 can automatically swing from an inclined position to a horizontal position under the influence of gravity. In other embodiments, the caregiver can also manually rotate the seat portion A200 along the second axis Z2 (described later) to automatically swing the seat portion A200 from an inclined position to a horizontal position. Referring to Figures 4 and 5, when the seat portion A200 is in the horizontal position, the bottom surface or seat surface of the seat portion A200 forms a certain angle with the inclined top surface of the base A100.

[0143] Referring again to Figures 1 through 4, the child safety seat A10 further includes a support member A400, which is disposed on the turntable A300 and adapted to rotate relative to the base A100 with the turntable A300. The seat portion A200 is rotatably connected to the support member A400 about a second axis Z2, allowing the seat portion A200 to swing laterally towards the seat portion A200. In Figure 2, the child safety seat A10 is in a forward-facing mode, with the lateral direction of the seat portion A200 corresponding to the left-right direction. In Figure 4, the child safety seat A10 is in a side-facing mode, with the lateral direction of the seat portion A200 corresponding to the front-back direction. In this embodiment, the support member A400 is a suspension member that suspends the seat portion A200 above the turntable A300. A gap L is formed between the bottom surface of the seat portion A200 and the top surface of the turntable A300 (refer to Figures 4 and 5) to allow the seat portion A200 to swing relative to the support member A400 along the second axis Z2 within the gap L. When the turntable A300 drives the support member A400 to rotate relative to the base A100 along the first axis Z1, the seat portion A200 disposed on the support member A400 will correspondingly rotate relative to the base A100 along the first axis Z1. Since the seat portion A200 is suspended above the turntable A300 located on top of the base A100 via the support member A400, when the seat portion A200 rotates to put the child safety seat A10 in a side-facing mode, the lateral swinging configuration of the seat portion A200 will allow the seat portion A200 to automatically swing from a tilted position in the lateral direction to a horizontal position.

[0144] Figure 5 also shows the child safety seat A10 in its side-facing mode. The difference between the child safety seat A10 shown in Figure 5 and the child safety seat A10 shown in Figure 4 is that they are installed on the left and right seats of the vehicle, respectively. For example, the child safety seat A10 shown in Figure 4 is installed on the left seat of the vehicle, and when in the side-facing mode shown in Figure 4, the seat portion A200 faces the left side of the vehicle (i.e., the left side of the base A100); the child safety seat A10 shown in Figure 5 is installed on the right seat of the vehicle, and when in the side-facing mode shown in Figure 5, the seat portion A200 faces the right side of the vehicle (i.e., the right side of the base A100). Regardless of whether the seat portion A200 is rotated to face the left or right side of the base A100, the seat portion A200 will swing freely relative to the support A400 to a horizontal position under the influence of gravity. In this way, the child placed in the child safety seat A10 will not tilt to the right (i.e., the right side of the seat part A200 shown in Figure 4, which corresponds to the front of the vehicle) or to the left (i.e., the left side of the seat part A200 shown in Figure 5, which corresponds to the front of the vehicle), thus making the child placed in the child safety seat A10 more comfortable.

[0145] Referring to Figures 6, 6A, and 6C, the support member A400 is generally U-shaped, including a first support arm A410, a second support arm A420, and an intermediate section A430 located between the first support arm A410 and the second support arm A420. The seat portion A200 includes a front end A210 and a rear end A220. The front end A210 is the end of the seat portion A200 that is closer to the child's feet when the child is placed, and the rear end A220 is the end of the seat portion A200 that is closer to the child's head when the child is placed. When the child safety seat A10 is in forward-facing mode, the front end A210 faces the front of the vehicle; when the child safety seat A10 is in rear-facing mode, the front end A210 faces the rear of the vehicle; and when the child safety seat A10 is in side-facing mode, the front end A210 faces the side of the vehicle (left or right). The front end A210 is rotatably connected to the first arm A410 of the support member A400, and the rear end A220 is rotatably connected to the second arm A420 of the support member A400, so that a gap is formed between the seat portion A200 and the turntable A300. Since the front end A210 and the rear end A220 of the seat portion A200 are rotatably connected to the first arm A410 and the second arm A420 of the support member A400, respectively, the seat portion A200 can swing about a second axis Z2 in the lateral direction relative to the support member A400. Referring to Figures 2 and 3, the second axis Z2 passes through the connection point between the front end A210 and the first arm A410 and the connection point between the rear end A220 and the second arm A420. In this embodiment, the front end A210 of the seat portion A200 is rotatably connected to the first arm A410 of the support member A400 via a first connecting shaft A411, and the rear end A220 of the seat portion A200 is rotatably connected to the second arm A420 of the support member A400 via a second connecting shaft 430. Specifically, the first connecting shaft A411 passes through the first arm A410 of the support member A400, and its two ends are respectively fixed to the front end A210 of the seat portion A200; the second connecting shaft 411 passes through the second arm A420 of the support member A400, and its two ends are respectively fixed to the rear end A220 of the seat portion A200. It is understood that the front end A210 and the rear end A220 of the seat portion A200 can be rotatably connected to the first arm A410 and the second arm A420 of the support member A400 in any other suitable manner, which will not be elaborated here. In some other embodiments, the support A400 may be a generally L-shaped bracket (not shown), with one end fixed to the turntable A300 and the other end forming a support arm, through which the seat portion A200 is pivotally connected. In still other embodiments, the support A400 may have one or more ball joints (not shown) disposed at the bottom of the seat portion A200, and correspondingly, the top surface of the turntable A300 is provided with one or more ball sockets, in which the ball joints are rotatably inserted, allowing the seat portion A200 to swing relative to the turntable A300 in the lateral direction.In other embodiments, the support A400 may include a universal joint or multiple links capable of rotating relative to the lateral direction. No particular limitation is made here.

[0146] Optionally, the rear end A220 of the seat portion A200 is higher than the front end A210 of the seat portion A200. Correspondingly, the second arm A420 of the support member A400 connected to the rear end A220 is higher than the first arm A410 of the support member A400 connected to the front end A210. When the seat portion A200 swings relative to the support member A400, the swing radius of the rear end A220 is greater than the swing radius of the front end A210.

[0147] The middle section A430 of the support member A400 is mounted on the turntable A300. As shown in FIG6C, the turntable A300 includes an upper cover A310 and a lower cover A320, with the middle section A430 sandwiched between the upper cover A310 and the lower cover A320. A first receiving groove A340 for holding the middle section A430 is formed on the lower surface of the upper cover A310. Specifically, in this embodiment, the turntable A300 is generally disc-shaped, and the middle section A430 radially penetrates the circular cross-section of the turntable A300 between the upper cover A310 and the lower cover A320. The upper cover A310 and the lower cover A320 sandwich the middle section A430 in the turntable A300, and fix the middle section A430 to the turntable A320 by the fastener A431, so that the support member A400 can rotate relative to the base A100 together with the turntable A300. In some embodiments, the support member A400 may be fixedly connected to the turntable A300. In still other embodiments, the support member A400 may be integral with the turntable A300. In yet other embodiments, the support member A400 may be pivotally connected to the base A100, and the turntable A300 may be fixedly connected to the support member A400, with the support member A400 driving the turntable A300 to rotate relative to the base A100 (see Figure 12).

[0148] In other embodiments, the intermediate section A430 may be slidably connected to the turntable A300 radially relative to the turntable A300. Thus, by sliding the intermediate section A430 of the support A400 relative to the turntable A300, the relative height of the first arm A410 and the second arm A420 of the support A400 can be adjusted. In this way, when the child safety seat A10 is in forward-facing or rear-facing mode, by sliding the intermediate section A430 of the support A400 relative to the turntable A300, the relative height of the front end A210 and the rear end A220 of the seat portion A200, which are respectively connected to the first arm A410 and the second arm A420, can be adjusted, thereby adjusting the tilt angle of the seat portion A200 in its longitudinal direction. For example, referring to Figures 7A and 7B, an example of a support slidably connected to a turntable is schematically shown. The turntable A300 is provided with a first receiving groove A340 extending radially along the turntable A300. The first receiving groove A340 can be disposed on the upper cover A310 or the lower cover A320. The middle section A430 is an arc shape protruding downwards. When the middle section A430 slides back and forth radially along the turntable A300, the tilt angle of the seat part A200 relative to the base A100 changes accordingly, thereby providing children with different sitting or lying positions. A portion of the support member A400 is slidably fitted into the first receiving groove A340. Specifically, at least a portion of the middle section A430 of the support member A400 is slidably fitted into the first receiving groove A340. Through the sliding engagement of this portion of the middle section A430 with the first receiving groove A340, the support member A400 is slidable relative to the turntable A300 radially. A plurality of locking holes A440 are respectively provided on opposite sides of the middle section A430. For example, as shown in FIG7B, three locking holes A440 are respectively provided on opposite sides of the middle section A430. The locking hole A440 located on one side of the middle section A430 and the locking hole A440 located on the other side of the middle section A430 are symmetrically arranged along the extension direction of the middle section A430.

[0149] The first receiving groove A340 is provided with a locking pin A350, which is movable between an extended position and a retracted position. When the locking pin A350 is in the extended position, it is adapted to extend into the first receiving groove A340 and insert into one of the locking holes 400 to prevent the support member A400 from sliding relative to the turntable A300. When the locking pin A350 is in the retracted position, it retracts from the first receiving groove A340 to allow the support member A400 to slide relative to the turntable A300. The turntable A300 also includes a reset member A360 and a traction member A370. In the embodiment shown in FIG. 7B, the reset member A360 is a helical compression spring; in other embodiments, the reset member A360 can be a wave spring, torsion spring, or any other suitable type of spring. The reset member A360 is adapted to bias the locking pin A350 toward the extended position. One end of the traction member A370 is connected to the locking pin A350, and the other end of the traction member A370 is connected to the operating element (not shown) provided on the child safety seat A10. In the embodiment shown in Figure 7B, the turntable A300 is provided with a locking pin A350, a reset member A360, and a traction member A370 on both sides of the support member A400, respectively. The locking pins A350 on both sides can be selectively inserted into a pair of locking holes A440. The following description mainly focuses on one side as an example; the other side has the same structure and will not be described again. When the user wants to adjust the tilt angle of the seat part A200 in its longitudinal direction via the support member A400, the operating element can be operated to pull the traction member A370. Driven by the traction member A370, the locking pin A350 moves from the extended position to the retracted position, thereby allowing the support member A400 to slide relative to the turntable A300. When the operation of the operating member is completed, under the elastic restoring force of the reset member A360, the reset member A360 will move toward the extended position to insert into one of the selected locking holes A440 of the plurality of locking holes A440, thereby preventing the support member A400 from sliding relative to the turntable A300.

[0150] It is understood that, although in the embodiment shown in FIG7B, the locking hole 400 is disposed in the middle section A430 of the support member A400 and the locking pin A350 is disposed in the first receiving groove A340, in other embodiments, the locking hole A440 can be disposed in the first receiving groove A340 and the locking pin A350 can be disposed in the middle section A430 of the support member A400.

[0151] It is understood that, apart from the support member A400 proposed in this embodiment, the seat portion A200 can be disposed above and spaced apart from the turntable A300 using any other components to allow the seat portion A200 to swing relative to the base A100 in the lateral direction of the seat portion A200, and this disclosure does not limit this. For example, two separate components can be used to connect the front end A210 and the rear end A220 of the seat portion A200 to the turntable A300 respectively, and the front end A210 and the rear end A220 can be rotatably supported so that the seat portion A200 can be swayably suspended above the turntable A300.

[0152] Optionally, in other embodiments, as shown in FIG8, the seat portion A200 includes a first portion A260 for supporting a child and a second portion A270 pivotally connected to a support member A400. The first portion A260 is the upper housing of the seat portion A200 and forms the backrest and seat portion of the seat portion A200, and is slidable relative to the second portion A270 to change the tilt angle of the first portion A260 relative to the base A100. The second portion A270 is the lower housing of the seat portion A200, and the front end portion A271 and the rear end portion A272 of the second portion A270 correspond to the front end portion A210 and the rear end portion 230 of the seat portion A200, respectively. FIG8 schematically shows the positions of the front end portion A271 and the rear end portion A272 of the second portion A270. For example, referring to Figures 6, 6A, and 6B, the front end A271 is rotatably connected to the first arm A410 of the support A400 via a first connecting shaft A411, and the rear end A272 is rotatably connected to the second arm A420 of the support A400 via a second connecting shaft 430, so that the second part A270 can rotate relative to the support A400 along the second axis Z2. The first part A260 is provided with an arc-shaped sliding groove, and the second part A270 is provided with a sliding rod. The sliding rod is slidably embedded in the sliding groove and can slide back and forth along the sliding groove. When the sliding rod slides to the rear end of the sliding groove (i.e., near the rear end of the second part A270), the back part of the first part A260 is approximately parallel to the vertical direction; when the sliding rod slides to the front end of the sliding groove (i.e., near the front end of the second part A270), the tilt angle of the back part of the first part A260 relative to the vertical direction reaches its maximum. Therefore, the seat A200 can not only swing laterally relative to the base A100, but also adjust the tilt angle of the first part A260 of the seat A200 relative to the vertical direction.

[0153] In this embodiment, the child safety seat A10 may further include a limiting mechanism, which is configured to limit the swing of the seat portion A200 relative to the base A100 within a predetermined swing angle range. Referring to Figures 9 and 10, the limiting mechanism includes a limiting groove A240 and a limiting protrusion A330. The limiting groove A240 is disposed at the bottom of the seat portion A200, and the limiting protrusion A330 is disposed at the top of the turntable A300. As described above, the lower surface of the upper cover A310 has a first receiving groove A340 for holding the middle section A430 of the support member A400, and the upper surface of the upper cover A310 has a limiting protrusion A330 corresponding to the first receiving groove A340. The limiting protrusion A330 may be integrally formed with the upper cover A310 of the turntable A300, or it may be installed on the upper cover A310 by a permanent connection method such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners. A groove structure is formed on the underside of the limiting protrusion A330 to accommodate the middle section A430 of the support A400, thereby making the structure of the turntable A300 more compact. It is understood that in other embodiments, the limiting groove A240 may be provided at the top of the turntable A300, and the limiting protrusion A330 may be provided at the bottom of the seat portion A200.

[0154] In this embodiment, the limiting protrusion A330 is disposed on the upper cover A310 along the path of the middle section A430 of the support member A400 through the turntable A300 (i.e., the first receiving groove A340). When the seat part A200, the turntable A300, and the support member A400 are assembled together, the limiting protrusion A330 is located in the limiting groove A240. When the seat part A200 swings to a predetermined swing angle, the sidewall of the limiting protrusion A330 is adapted to contact the sidewall of the limiting groove A240 to limit the further increase of the swing angle of the seat part A200. The limiting protrusion A330 has a constant width, and the width of the limiting groove A240 gradually increases from one end of the limiting groove A240 near the first support arm A410 (near the front end A210 of the seat portion A200, hereinafter referred to as the front end of the limiting groove A240) to the other end of the limiting groove A240 near the second support arm A420 (near the rear end A220 of the seat portion A200, hereinafter referred to as the rear end of the limiting groove A240), and the width of the front end of the limiting groove A240 is greater than the width of the limiting protrusion A330. The difference between the width of the front end of the limiting groove A240 and the width of the limiting protrusion A330 can be set according to actual needs (e.g., a predetermined swing angle). If the predetermined swing angle is large, the difference between the width of the front end of the limiting groove A240 and the width of the limiting protrusion A330 will be large; conversely, if the predetermined swing angle is small, the difference between the width of the front end of the limiting groove A240 and the width of the limiting protrusion A330 will be small. As described above, the swing radius of the rear end A220 of the seat part A200 is greater than the swing radius of the front end A210 of the seat part A200. Therefore, during the swinging process of the seat part A200 relative to the base A100, the displacement of the rear part of the seat part A200 in the lateral direction is greater than the displacement of the front part of the seat part A200 in the lateral direction. Setting the limiting groove A240 to be narrower at the front and wider at the rear allows for a larger contact area when the sidewall of the limiting protrusion A330 contacts the sidewall of the limiting groove A240. Specifically, the limiting groove A240 can be configured such that when one sidewall of the limiting protrusion A330 contacts the other sidewall of the limiting groove A240, the entire sidewall of that side of the limiting protrusion A330 contacts the other sidewall of the limiting groove A240, or the entire sidewall of that side of the limiting protrusion A330 contacts the other sidewall of the limiting groove A240. In other embodiments, the limiting groove A240 can be configured to have a constant width, and the limiting protrusion A330 can be configured to have a width that gradually decreases from the front end of the limiting protrusion A330 (near the front end A210 of the seat portion A200) to the rear end of the limiting protrusion A330 (near the rear end A220 of the seat portion A200), with the width of the front end of the limiting protrusion A330 being smaller than the width of the limiting groove A240.

[0155] Referring again to Figure 10, the child safety seat A10 also includes a locking element A500. The locking element A500 is configured to prevent the seat portion A200 from swinging relative to the base A100 when the child safety seat A10 is in a non-side-facing mode, and to allow the seat portion A200 to swing relative to the base A100 when the child safety seat A10 is in a side-facing mode. In this document, describing the child safety seat A10 as being in a non-side-facing mode means that the child safety seat A10 is not in a side-facing mode; that is, the child safety seat A10 can be in a forward-facing mode, a rear-facing mode, or a combination of forward-facing, rear-facing, and side-facing modes. The "non-lateral mode" can correspond only to the "forward mode" and "rearward mode," or it can correspond to situations where the angle between the opening direction of the seat A200 and the fore-and-aft direction is not within all angle ranges of the "lateral mode." For example, when the angle range of the "lateral mode" is configured as an angle range of 70 to 110 degrees of counterclockwise or clockwise rotation of the seat A200 from the forward mode, the "non-lateral mode" can be an angle range of 0 to 70 degrees and 110 to 180 degrees of counterclockwise or clockwise rotation of the seat A200 from the forward mode. No particular limitation is made here. The locking member A500 has a locked state and an unlocked state. When the locking member A500 is in the locked state, it prevents the seat A200 from swinging relative to the base A100. When the locking member A500 is in the unlocked state, it allows the seat A200 to swing relative to the base A100. It is understandable that when the child safety seat is in non-side-facing mode, the locking mechanism not only prevents the seat A200 from swinging relative to the base A100, but also increases the stability of the seat A200.

[0156] Referring to Figure 11, a locking element A500 is disposed on the turntable A300 and includes a locking pin A510. The locking pin A510 passes through a through-hole in the upper cover A310 of the turntable A300 and can extend out of the upper cover A310. The locking pin A510 is configured to be movable between an engaged position extending out of the through-hole (see Figure 10) and a disengaged position at least partially retracted into the through-hole (see Figure 11). When the locking pin A510 is in the engaged position (as shown in Figure 10), the locking element A500 is in a locked state, and when the locking pin A510 is in the disengaged position (as shown in Figure 11), the locking element A500 is in the unlocked state. The seat portion A200 is provided with a locking hole A250. The locking hole A250 is located at the bottom of the seat portion A200. When the seat A200 and the turntable A300 are assembled together, the position of the engaging hole A250 corresponds to the position of the engaging pin 250. When the engaging pin A510 is in the engaged position (as shown in Figure 10), the engaging pin A510 engages with the engaging hole A250, that is, the engaging pin A510 is inserted into the engaging hole A250. When the engaging pin A510 is in the disengaged position (as shown in Figure 11), the engaging pin A510 disengages from the engaging hole A250, that is, the engaging pin A510 is removed from the engaging hole A250. It can be understood that although only one locking member A500 and one engaging hole A250 cooperating with the engaging pin A510 of the locking member A500 are provided in this embodiment, in other embodiments, two or more locking members A500 can be provided, and correspondingly two or more engaging holes A250 can be provided. In other embodiments, other interlocking components such as hooks and levers can be used instead of locking pins and locking holes. In other embodiments, locking member A500 can also be provided on the seat portion A200 or the support member A400.

[0157] In this embodiment, the locking member A500 can be configured such that when the seat part A200 rotates to allow the child safety seat A10 to enter the side-facing mode, the locking member A500 automatically switches from the locked state to the unlocked state, and when the seat part A200 rotates to allow the child safety seat A10 to leave the side-facing mode, the locking member A500 automatically switches from the unlocked state to the locked state. Specifically, when the seat part A200 rotates to allow the child safety seat A10 to enter the side-facing mode, the engaging pin A510 moves from the engaging position (as shown in FIG. 10) to the disengaged position (as shown in FIG. 11), and when the seat part A200 rotates to allow the child safety seat A10 to leave the side-facing mode, the engaging pin A510 moves from the disengaged position (as shown in FIG. 11) to the engaging position (as shown in FIG. 10). In some other embodiments, the locking member A500 can be configured such that the locking member A500 is switched from the locked state to the unlocked state by the caregiver manually operating the release mechanism.

[0158] Referring to Figures 12, 13A, and 13B, the locking member A500 further includes a first fixing seat A520 and a first driving member A530. The first fixing seat A520 is disposed in the turntable A300. Specifically, the first fixing seat A520 can be fixedly connected to the bottom surface of the turntable A300, or disposed between the upper cover A310 and the lower cover A320. The first driving member A530 is disposed between the turntable A300 and the base A100, and is adapted to drive the engaging pin A510 to move between an engaged position and a disengaged position. When the turntable A300 rotates to a non-lateral position, the first driving member A530 drives the engaging pin A510 to the disengaged position, thereby disengaging it from the engaging hole A250; and when the turntable A300 rotates to a lateral position, the engaging pin A510 moves to the engaged position, thereby engaging it with the engaging hole A250.

[0159] The first driving member A530 is slidably connected to the first fixed base A520 relative to the first fixed base A520. The first fixed base A520 and the first driving member A530 are arranged radially along the turntable A300 such that the first driving member A530 is slidable relative to the first fixed base A520 in the radial direction of the turntable A300, for example, in the X-X' direction shown in Figures 13A and 13B. In this embodiment, the base A100 has an annular inner edge A110, and the turntable A300 is rotatably fitted onto the inner edge A110. The inner edge A110 is provided with an arc-shaped clearance groove A111, and the two ends of the clearance groove A111 have guide slopes (see Figure 12). Referring to Figure 13B, the first driving member A530 has a push protrusion A531 that slidably extends out of the outer peripheral surface of the turntable A300. The push-up protrusion A531 extends from the outer peripheral surface of the turntable A300 and can be inserted into the clearance groove A111 in the inner edge A110 of the base A100. When the turntable A300 rotates to the lateral position, the push-up protrusion A531 extends into the clearance groove A111 along the guide slope, thereby driving the engaging pin A510 to the disengaged position. When the turntable A300 rotates to the non-lateral position, the inner edge A110 abuts against the push-up protrusion A531, thereby driving the engaging pin A510 to the engaged position. In Figures 13A and 13B, the child safety seat A10 is in forward-facing or rear-facing mode, i.e., the non-lateral position. At this time, the push-up protrusion A531 is abutted by the surface of the inner edge A110 of the base A100 and moves in the X' direction, thereby guiding the engaging pin A510 to extend upward along the Y direction through the through hole and engage with the engaging hole A250.

[0160] Figure 13A is a cross-sectional view of the locking member A500 taken in half along the radial direction of the turntable A300, showing the internal structure of the locking member A500. Referring to Figure 13A, a first elastic member A540 is provided between the first fixed base A520 and the first driving member A530. The first elastic member A540 is adapted to bias the first driving member A530 so that the pushing protrusion A531 tends to move away from the first fixed base A520. In this embodiment, the first elastic member A540 is a helical compression spring. In other embodiments, the first elastic member A540 can be a wave spring, torsion spring, or any other suitable type of spring.

[0161] A locking pin A510 is disposed in the first fixed seat A520 and is slidable relative to the first fixed seat A520 in a direction perpendicular to the top surface of the turntable A300, for example, in the Y-Y' direction shown in Figures 13A and 13B. One end of the locking pin A510 extends out of the first fixed seat A520 and is adapted to pass through the upper cover A310 to be inserted into a locking hole A250 disposed at the bottom of the seat portion A200. Guide grooves A521 are provided on opposite sides of the first fixed seat A520, and the guide grooves A521 extend along a direction perpendicular to the top surface of the turntable A300. The first pin A522 passes through the locking pin A510 and extends through the two guide grooves A521 located on opposite sides of the first fixed base A520, so that the middle part of the first pin A522 is slidably embedded in the two guide grooves A521 to guide the locking pin A510 to move in a direction perpendicular to the top surface of the turntable A300, so that the locking pin A510 can engage with or disengage from the locking hole A250.

[0162] First drive grooves A532 are provided on opposite sides of the first drive member A530. The two ends of the first pin A522 protrude from the two guide grooves A521 and are slidably embedded in the two first drive grooves A532 located on opposite sides of the first drive member A530. The first drive grooves A532, the first pin A522, and the guide grooves A521 cooperate with each other, so that the radial movement of the first drive member A530 along the turntable A300 can be converted into the movement of the first pin A522 in a direction perpendicular to the top surface of the turntable A300. Correspondingly, when the first drive member A530 moves radially relative to the first fixed base A520 along the turntable A300, the drive engaging pin A510 moves relative to the first fixed base A520 in a direction perpendicular to the top surface of the turntable A300. Specifically, when the first driving member A530 moves relative to the first fixed seat A520 in the X' direction (i.e., the direction that brings the push protrusion A531 closer to the first fixed seat A520), the locking pin A510 moves relative to the first fixed seat A520 in the Y direction, and when the first driving member A530 moves relative to the first fixed seat A520 in the X direction (i.e., the direction that moves the push protrusion A531 further away from the first fixed seat A520), the locking pin A510 moves relative to the first fixed seat A520 in the Y' direction.

[0163] When the child safety seat A10 is in non-side-facing mode, the push-up protrusion A531 is abutted by the inner edge A110 of the base A100 and positioned close to the first fixing seat A520. At this time, the engaging pin A510 is in the engaged position inserted into the engaging hole A250 (as shown in Figure 10). In this situation, because the engaging pin A510 is engaged with the engaging hole A250, the seat portion A200 cannot swing relative to the base A100. When the child safety seat A10 is in side-facing mode, the push-up protrusion A531 aligns with the clearance groove A111 provided in the inner edge A110. Under the elastic restoring force of the first elastic member A540, the push-up protrusion A531 will insert into the clearance groove A111. As a result, the first driving member A530 will move in the X direction relative to the first fixed seat A520. Driven by the first driving groove A532, the engaging pin A510 will move in the Y' direction relative to the first fixed seat A520 until the engaging pin A510 is in the disengaged position of the disengaged engagement hole A250 (as shown in Figure 11). In this case, since the engaging pin A510 is disengaged from the engagement hole A250, the seat part A200 can swing relative to the base A100.

[0164] In this embodiment, the clearance groove A111 is designed to smoothly transition with the inner edge A110, allowing the push protrusion A531 to automatically slide into and out of the clearance groove A111 during the rotation of the turntable A300 relative to the base A100. This enables the locking member A500 to automatically switch between locked and unlocked states. When the push protrusion A531 is pushed by the inner edge A110, the locking member A500 remains in the locked state until the push protrusion A531 slides into the clearance groove A111, at which point the locking member A500 switches from the locked state to the unlocked state. This prevents the seat portion A200 from swaying relative to the base A100 when the child safety seat A10 is in a non-side-facing mode.

[0165] In this embodiment, as shown in FIG12, the inner edge A110 is provided with two clearance grooves A111. The clearance groove A111 near the front end of the base A100 is actually not visible at the angle shown in FIG12, and is therefore represented by a dashed line. Since the child safety seat A10 may rotate to the left or right relative to the forward-facing mode when in the side-facing mode, the two clearance grooves A111 ensure that the locking member A500 is unlocked regardless of whether the child safety seat A10 is in the left-facing side-facing mode or the right-facing side-facing mode, thereby allowing the seat part A200 to automatically swing from the tilted position to the horizontal position under the action of gravity.

[0166] It is understood that in some other embodiments, two locking members A500 may be provided, and when the child safety seat A10 is in the side-facing mode, the pushing protrusions A531 of the two locking members A500 extend into the clearance grooves A111 respectively. In other still embodiments, three or more locking members A500 may be provided, and correspondingly three or more clearance grooves A111 may be provided. The number of locking members A500 and the number of clearance grooves A111 may be the same or different. This disclosure does not limit the number of locking members A500 and clearance grooves A111.

[0167] Optionally, two sets of locking members can be provided at different heights of the turntable A300, and two sets of clearance grooves can be provided correspondingly on the inner edge A110. The first set of locking members includes at least one first locking member A500a with a first engaging pin A510a, which is used to lock the seat part A200 in a forward or rearward mode. The second set of locking members includes a pair of second locking members A500b with second engaging pins A510b, which are located on both sides of the upper surface of the turntable A300, respectively, for locking the seat part A200 in a lateral mode after it has been laterally swung. The first locking member A500a and the second locking member A500b have the same structure as the locking member A500 described above, so the structure of the first locking member A500a and the second locking member A500b will not be described again. Referring to Figures 10A and 13B, when the turntable A300 is in forward or backward mode, the push protrusion A531 of the first locking member A500a extends into the first set of clearance grooves (i.e., clearance groove A111), and the engaging pin A510a protrudes upward from the upper surface of the turntable A300 and engages with the engaging hole A250 of the seat part A200 to prevent the seat part A200 from rotating laterally; the second locking member A500b retracts into the upper surface of the turntable A300 to avoid interfering with the lateral rotation of the seat part A200. Referring to Figure 11, when the turntable A300 pivots to disengage from the forward or backward mode, for example, when the turntable A300 rotates 30 to 60 degrees clockwise or counterclockwise from the forward or backward mode position, the push protrusion A531 of the first locking member A500a slides out of the first set of clearance grooves and moves towards the inside of the turntable A300 due to the pressure of the inner edge of the base A100. The first locking pin A510 retracts downward into the upper surface of the turntable A300, so that the first locking pin A510a releases its engagement with the seat part A200, thereby allowing the seat part A200 to swing laterally to the equilibrium position under its own weight (refer to Figures 4 and 5). When the turntable A300 further pivots to disengage from the lateral mode (not shown), for example, when the turntable A300 rotates 90 degrees clockwise or counterclockwise from the forward or rearward mode position, the push protrusions A531 of the two second locking members 510b of the second set of locking members extend into the second set of clearance grooves, and the second engaging pin A510b protrudes upward from the upper surface of the turntable A300 and engages with the second set of engaging holes of the seat part A200 to prevent the seat part A200 from continuing to rotate laterally. This ensures that the child safety seat A10 does not wobble when in the lateral mode, improving the child's passenger safety.

[0168] Figure 14 shows a child safety seat A10 in forward-facing mode according to another embodiment of the present disclosure. The following will primarily describe the differences between the child safety seat in this embodiment and the child safety seat in the above embodiment shown in Figure 1; similarities will not be repeated.

[0169] Referring to Figures 15 to 17, similar to the embodiments described above, the turntable A300 is rotatable relative to the base A100, so that the seat portion A200, connected to the turntable A300 via the support A400, is also rotatable relative to the base A100. This allows the child safety seat A10 to freely switch between the forward-facing mode shown in Figure 15, the rear-facing mode shown in Figure 16, and the lateral mode shown in Figure 17. When the child safety seat A10 is in the lateral mode shown in Figure 17, the seat portion A200 is swingable relative to the support A400, allowing the seat portion A200 to automatically swing from an inclined position in the lateral direction to a horizontal position.

[0170] Referring to Figure 18, a front connector A211 is fixedly connected to the front end A210 of the seat portion A200, and a rear connector A221 is fixedly connected to the rear end A220 of the seat portion A200. The front connector A211 and the rear connector A221 can be permanently fixed to the front end A210 and the rear end A220 respectively by methods such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivets. The front connector A211 has a front connecting hole A2111 through which a first connecting shaft A411 passes, and the rear connector A221 has a rear connecting hole A2211 through which a second connecting shaft A421 passes. The front connector A211 is rotatably connected to the first arm A410 of the support A400 via a first connecting shaft A411 passing through the front connecting hole A2111, and the rear connector A221 is rotatably connected to the second arm A420 of the support A400 via a second connecting shaft A421 passing through the rear connecting hole A2211.

[0171] Referring to Figures 19 and 20, a first connector A412 is fixedly connected to the end of the first arm A410 of the support member A400. A first connecting shaft A411 passes through the first connector A412 to rotatably connect the front connector A211 to the first connector A412. A second connector A422 is fixedly connected to the end of the second arm A420 of the support member A400. A second connecting shaft A421 passes through the second connector A422 to rotatably connect the rear connector A221 to the second connector A422. The first connector A412 and the second connector A422 can be permanently fixed to the first arm A410 and the second arm A420 respectively by means of permanent connection such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners. Damping springs A413 are also provided on both sides of the first connector A412. One end of each damping spring A413 is connected to the first connector A412, and the other end is connected to the seat part A200. These two damping springs A413 can prevent the seat part A200 from swaying in the lateral direction when subjected to a small force.

[0172] Referring again to Figure 19, in this embodiment, the top of the upper cover A310 of the turntable A300 has a cylindrical, upwardly protruding protrusion A311, and the top surface A312 of the protrusion A311 is a concave spherical surface. The middle section A430 of the support member A400 passes through the top surface A312 and is connected to the turntable 200. The middle section A430 is generally arc-shaped. In Figure 19, the middle section A430 is obscured by a decorative cover A600 fixed to the upper cover A310 and is therefore not visible. The decorative cover A600 can be permanently connected by means such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners. The upper edge of the protrusion A311 is formed as an upwardly extending circular flange. When the seat portion A200 is mounted on the turntable A300, the circular flange of the protrusion A311 approaches the bottom surface of the seat portion A200, leaving only the gap required for the seat portion A200 to swing relative to the turntable A300. Since the top of the circular flange is higher than the bottom of the seat portion A200 relative to the horizontal plane, the circular flange can at least cover the gap between the bottom of the seat portion A200 and the turntable A300. The decorative cover A600 includes a cover body A610 and a front baffle A620 and a rear baffle A630 located at opposite ends of the cover body A610. The cover body A610 is disposed on the upper cover A310 along the path of the middle section A430 of the support member A400 through the top surface A312. The cover body A610 is generally arc-shaped in its extending direction and has a convex cross-section to form a second receiving groove A640 below it to at least accommodate the middle section A430. The cover body A610 can function as the limiting protrusion A330 described in the above embodiments. The top surfaces A312 of the protrusions A311 extend from both ends of the cover body A610. The front baffle A620 and the rear baffle A630 extend outward from both ends of the cover body A610 in a direction perpendicular to the extending direction of the cover body A610. When the seat portion A200 is mounted on the turntable A300, the front baffle A620 and the rear baffle A630 are adapted to cover at least the lowermost portion of the limiting groove A240 provided at the bottom of the seat portion A200.

[0173] Figure 21 shows a child safety seat A10 in forward-facing mode according to another embodiment of the present disclosure. The following will primarily describe the differences between the child safety seat in this embodiment and the child safety seat in the above embodiment shown in Figure 14; similarities will not be repeated.

[0174] In this embodiment, the support member A400 is slidably connected to the turntable A300 and can drive the seat portion A200 to slide relative to the turntable A300 to adjust the tilt angle of the seat portion A200. The child safety seat A10 also includes a locking mechanism A700 (not shown in FIG. 21) and a second operating member A810, which will be described in detail below. The locking mechanism A700 has a locked state and an unlocked state. When the locking mechanism A700 is in the locked state, it prevents the support member A400 from sliding relative to the turntable A300, while when the locking mechanism A700 is in the unlocked state, it allows the support member A400 to slide relative to the turntable A300. The second operating member A810 can be operated by the user to switch the locking mechanism from the locked state to the unlocked state.

[0175] In other embodiments, the child safety seat A10 may also omit the turntable A300, and the support member A400 may be slidably connected to the base A100, thereby allowing the tilt angle adjustment of the seat portion A200 independently when the seat portion A200 cannot rotate relative to the base A100. In this case, when the locking mechanism A700 is in the locked state, the locking mechanism A700 prevents the support member A400 from sliding relative to the base A100, while when the locking mechanism A700 is in the unlocked state, the locking mechanism A700 allows the support member A400 to slide relative to the base A100.

[0176] Referring to Figures 22 and 23, in this embodiment, the seat portion A200 can be adjusted to different tilt angles by sliding the support member A400 relative to the turntable A300. For example, in Figure 22, the seat portion A200 is in a more upright position, and the backrest of the seat portion A200 is approximately parallel to the vertical direction, while in Figure 23, the seat portion A200 is in a more reclined position, and the tilt angle of the backrest of the seat portion A200 relative to the vertical direction reaches its maximum.

[0177] Referring to Figure 24, similar to the embodiment described above, the two ends of the support member A400 (i.e., the ends of the first support arm A410 and the second support arm A420) are adapted to be connected to the front end A210 and the rear end A220 of the seat portion A200, respectively. Specifically, the front end A210 of the seat portion A200 is rotatably connected to the first support arm A410 via a first connecting shaft A411 and a first connecting member A412, and the rear end A220 of the seat portion A200 is rotatably connected to the second support arm A420 via a second connecting shaft A421 and a first connecting member A422. In other embodiments, the front end A210 and the rear end A220 of the seat portion A200 may also be fixedly connected to the first support arm A410 and the second support arm A420, respectively. In this case, the seat portion A200 cannot swing laterally relative to the support member A400. The support member A400 may be made of a high-strength material, such as metal. Therefore, the support component A400 can enhance the strength of the child safety seat A10.

[0178] In this embodiment, the second operating member A810 is sleeved on the support member A400 and is slidable relative to the support member A400. Specifically, the second operating member A810 is sleeved on the end of the first support arm A410 of the support member A400 extending from the decorative cover A600 and is slidable relative to the end of the first support arm A410 to drive the locking mechanism A700, which will be described in detail below, to switch between a locked state and an unlocked state. The support member A400 is a hollow tubular structure. The locking mechanism A700 is disposed inside the support member A400. By pulling the second operating member A810 to slide it relative to the support member A400, the locking mechanism A700 can be switched from a locked state to an unlocked state, thereby allowing the support member A400 to slide relative to the turntable A300, and correspondingly allowing the seat portion A200 connected to the support member A400 to be tilted.

[0179] Referring to Figures 25 and 26, a bracket A380 is mounted on the lower cover A320 of the turntable A300, and a support member A400 is slidably connected to the bracket A380. In this embodiment, the tilt angle of the seat portion A200 is adjusted by sliding the support member A400 relative to the bracket A380. The bracket A380 can be permanently fixed to the upper surface of the lower cover A320 by means of permanent connection such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivet fasteners. The bracket A380 is provided with a bushing A381. The bushing A381 is inverted U-shaped and located between the support member A400 and the bracket A380. The bushing A381 allows for smoother sliding of the support member A400 relative to the bracket A380. The bracket A380 is also provided with a roller A382, which is rotatably connected to the bracket A380. Roller A382 is positioned below support A400 and contacts the lower surface of support A400. Rotation of roller A382 assists in the sliding of support A400 relative to bracket A380. In this embodiment, the positions of roller A382 and bushings A381 correspond, and two rollers A382 and two bushings A381 are provided. It is understood that in other embodiments, only one roller or bushing may be provided, or more than three rollers or bushings may be provided, and the positions of the rollers and bushings may not correspond.

[0180] The support member A400 is provided with a slide rod A450, which passes through the support member A400 in a direction perpendicular to its extending direction, and both ends of the slide rod A450 extend out of the support member A400. Limiting grooves A384 are provided on opposite sides of the bracket A380. The two ends of the slide rod A450 are slidably fitted into the two limiting grooves A384 located on opposite sides of the bracket A380. When the tilt angle of the seat A200 is adjusted, the support member A400 causes the two ends of the slide rod A450 to slide within the two limiting grooves A384. The limiting grooves A384 limit the sliding distance of the support member A400. Specifically, for example, when the seat A200 is in the more upright position shown in FIG22, the end of the slide bar A450 is located at the rear end of the limiting groove A384, while when the seat A200 is in the more reclined position shown in FIG23, the end of the slide bar A450 is located at the front end of the limiting groove A384.

[0181] Referring again to Figures 25 and 26, and in conjunction with Figures 27 to 29, the second operating member A810 is connected to the locking mechanism A700 via the second driving member A820. When the second operating member A810 is operated by the user, the movement of the second operating member A810 drives the movement of the second driving member A820. The second driving member A820 is provided with a sliding cavity A821. The locking mechanism A700 is slidably connected to the second driving member A820 relative to the second driving member A820 within the sliding cavity A821. The locking mechanism A700 includes a stop pin A710 and a second fixed seat A720. The stop pin A710 is slidably disposed within the second fixed seat A720 and is movable between an extended position and a retracted position. When the gear shift pin A710 is in the extended position, it extends from the second fixed seat A720, and the locking mechanism A700 is in the locked state. When the gear shift pin A710 is in the retracted position, it retracts into the second fixed seat A720, and the locking mechanism A700 is in the unlocked state. The movement of the second drive member A820 is adapted to drive the gear shift pin A710 to move between the extended and retracted positions.

[0182] In this embodiment, the locking mechanism A700 includes two stop pins A710, which are offset laterally and adapted to extend from opposite sides of the second fixed base A720. The second fixed base A720 has two accommodating cavities A721 laterally. Each stop pin A710 is slidably disposed within a corresponding cavity A721. Two pairs of guide grooves A722 are provided at the top and bottom of the second fixed base A720 at positions corresponding to the two accommodating cavities A721, and each pair of guide grooves A722 communicates with a corresponding cavity A721. Each stop pin A710 is provided with a second pin A730, which passes through the stop pin A710. The two ends of the second pin A730 extending from the stop pin A710 are slidably embedded within corresponding pairs of guide grooves A722. The sliding engagement between the second pin A730 and the guide groove A722 guides the movement of the stop pin A710 between the extended and retracted positions. In this embodiment, since the two stop pins A710 are staggered in the lateral direction, the space occupied by the locking mechanism A700 can be saved.

[0183] The bracket A380 has multiple pairs of position holes A383 on opposite sides. Two position pins A710 are adapted to selectively insert into one pair of position holes A383, thereby preventing the support A400 from sliding relative to the bracket A380, and locking the seat A200 at a specific tilt angle. In this embodiment, multiple pairs of position holes A383 are provided, so the seat A200 can be locked at multiple tilt angles. The number of position holes A383 can be set as needed, and this disclosure does not limit it.

[0184] Two pairs of second driving grooves A822 are provided above and below the sliding cavity A821 of the second driving member A820, and each pair of driving grooves 822 communicates with the sliding cavity A821. Each second pin A730, after its two ends protrude from the corresponding pair of guide grooves A722, is slidably embedded in the corresponding pair of driving grooves 822. When the second driving member A820 moves relative to the second fixed seat A720, each pair of second driving grooves A822 is adapted to drive the corresponding second pin A730 to move. The second pin A730 will drive the corresponding stop pin A710 to move between an extended position and a retracted position, thereby switching the locking mechanism A700 between a locked state and an unlocked state. A second elastic member A830 is provided in the sliding cavity A821, and the second elastic member A830 is connected between the second driving member A820 and the second fixed seat A720. The second elastic member A830 is adapted to drive the locking mechanism A700 to automatically return from the unlocked state to the locked state. In this embodiment, the second elastic element A830 is a helical compression spring. In other embodiments, the second elastic element A830 can be a wave spring, torsion spring, or any other suitable type of spring.

[0185] Specifically, for example, when the locking mechanism A700 is in the locked state shown in FIG. 27, the two shift pins A710 extend from opposite sides of the second fixed seat A720 and are adapted to selectively insert into one of the pair of shift holes A383. In this case, the support member A400 cannot slide relative to the bracket A380, and therefore, the seat part A200 is locked at a specific tilt angle. When it is necessary to adjust the tilt angle of the seat part A200, the user pulls the second operating member A810, causing the second operating member A810 to slide relative to the support member A400. The second operating member A810 drives the second driving member A820 to move, and the two pairs of driving grooves 822 on the second driving member A820 drive the two shift pins A710 from the extended position to the retracted position, thereby disengaging the two shift pins A710 from the pair of shift holes A383, and the locking mechanism A700 is in the unlocked state shown in FIG. 28. In this configuration, the support member A400 can slide relative to the bracket A380, allowing the user to adjust the tilt angle of the seat section A200. After the seat section A200 is adjusted to the desired tilt angle, the user releases the second operating member A810. Under the elastic restoring force of the second elastic member A830, the locking mechanism A700 automatically returns from the unlocked state shown in Figure 28 to the locked state shown in Figure 27.

[0186] Figures 30 to 33 respectively illustrate a child safety seat B1000 in a forward-facing mode, a rear-facing mode, a left-facing side-facing mode, and a right-facing side-facing mode according to another embodiment of the present disclosure. The child safety seat B1000 includes a base B1100, a seat portion B1200, and a turntable B1300. The seat portion B1200 includes a seat portion B1210 and a backrest portion B1220. The base B1100 is adapted to be fixed to a vehicle seat. Specifically, the base B1100 can be placed on the seat surface of a vehicle seat and fixedly connected to the vehicle seat via, for example, an ISOFIX (International Standards Organization FIX) interface. The turntable B1300 is rotatably disposed on the base B1100 and is adapted to rotate the seat portion B1200 relative to the base B1100, thereby switching the child safety seat B1000 between a forward-facing mode, a side-facing mode (including a left-facing side-facing mode and a right-facing side-facing mode), and a rear-facing mode. When the turntable B1300 rotates to the forward position, as shown in Figure 30, the child safety seat B1000 switches to forward-facing mode. When the turntable B1300 rotates to the rearward position, as shown in Figure 31, the child safety seat B1000 switches to rear-facing mode. When the turntable B1300 rotates to the lateral position, as shown in Figures 32 and 33, the child safety seat B1000 switches to lateral mode. Optionally, the base B1100 has a load-bearing surface that is inclined in the front-rear direction, and the turntable B1300 is positioned on the load-bearing surface; therefore, the turntable B1300 is also inclined in the front-rear direction. In the event of a collision, the inclined load-bearing surface design helps to disperse the impact force on the connection structure between the seat unit B1200 and the base B1100 in a traffic accident. In this embodiment, the turntable B1300 is a generally circular disc, and it can rotate 360 ​​degrees relative to the base B1100. Correspondingly, driven by the turntable B1300, the seat portion B1200 can also rotate 360 ​​degrees relative to the base B1100, allowing the child safety seat B1000 to freely switch between the forward-facing mode shown in Figure 30, the rear-facing mode shown in Figure 31, and the left-facing and right-facing side-facing modes shown in Figure 32 and Figure 33, respectively. In other embodiments, the child safety seat may also include a base and a seat portion, with the seat portion detachably mounted in multiple different engagement positions on the base, allowing the child safety seat to switch between a side-facing mode and at least one of a forward-facing and a rear-facing mode. When the seat portion is mounted in the engagement position corresponding to the side-facing mode, it can be further away from the adjacent door than in the forward-facing and / or rear-facing modes compared to the base.

[0187] In this article, "forward-facing mode" refers to the mode in which the child in the child safety seat B1000 faces forward of the vehicle while the vehicle is in motion; "rear-facing mode" refers to the mode in which the child in the child safety seat B1000 faces rearward of the vehicle while the vehicle is in motion; and "side-facing mode" refers to the mode in which the child in the child safety seat B1000 faces left or right of the vehicle while the vehicle is in motion. In other words, in forward-facing mode, the opening of the seat section B1200 faces forward of the vehicle; in rear-facing mode, the opening of the seat section B1200 faces rearward of the vehicle; and in side-facing mode, the opening of the seat section B1200 forms a certain angle with the forward / rear direction, for example, an angle of 90 degrees, or an angle ranging from 70 degrees to 110 degrees. The side-facing mode facing left will be referred to as "left-facing mode" and the side-facing mode facing right will be referred to as "right-facing mode". When the child safety seat B1000 is in left-facing mode, the position of the turntable B1300 facing left will be called "left-facing position" and when the child safety seat B1000 is in right-facing mode, the position of the turntable B1300 facing right will be called "right-facing position".

[0188] Referring to FIG34, optionally, in one or more embodiments, the child safety seat B1000 further includes a support member B1400, which is disposed on the turntable B1300 and adapted to rotate with the turntable B1300 relative to the base B1100. The front end and rear end of the seat portion B1200 are rotatably connected to the two ends of the support member B1400, and are spaced apart from the turntable B1300 and located above the turntable B1300 to allow the seat portion B1200 to swing relative to the base B1100 in the lateral direction of the seat portion B1200. For example, the seat portion B1200 can automatically swing from an inclined position to a horizontal position under the action of gravity. As shown in FIG30 and FIG31, in forward-facing and rearward-facing modes, the seat portion B1200 is inclinedly disposed on the base B1100 in its longitudinal direction. In particular, the bottom surface of the seat portion B1200 is inclined rearwardly above the bearing surface of the base B1100. The bearing surface at the top of the base B1100 is inclined in the front-rear direction. Correspondingly, the turntable B1300 located on the top surface of the base B1100 is also inclined in the front-rear direction. For example, the plane on which the turntable B1300 is located forms an angle of approximately 10 degrees with the front-rear direction. Therefore, when the seat part B1200 is fixed above the turntable B1300, the seat part B1200 is inclined in the front-rear direction. When the seat part B1200 rotates relative to the base B1100, causing the child safety seat B1000 to be in a side-facing mode, the lateral direction of the seat part B1200 corresponds to the front-rear direction. In this embodiment, when the seat part B1200 rotates with the turntable B1300 relative to the base B1100 to a position deviating from the front-rear direction, for example, when the child safety seat B1000 is in a side-facing mode, the seat part B1200 can swing from an inclined position in the lateral direction to a horizontal position by rotating the seat part B1200 relative to the support member B1400. In this document, describing a device as being in an “tilted position” means that the device is in a position where its longitudinal or transverse axis is deviated from the horizontal plane when the device is placed on a horizontal plane, while describing a device as being in a “horizontal position” means that the device is in a position where its longitudinal or transverse axis is parallel to the horizontal plane when the device is placed on a horizontal plane.

[0189] The support member B1400 is slidably connected to the turntable B1300 relative to the turntable B1300. Thus, the relative height of the front and rear ends of the seat portion B1200, respectively connected to both ends of the support member B1400, can be adjusted by sliding the support member B1400 relative to the turntable B1300, thereby adjusting the tilt angle of the seat portion B1200 in its longitudinal direction. The child safety seat B1000 also includes a locking mechanism (not shown) and an operating element B1410. The locking mechanism has a locked state and an unlocked state. When the locking mechanism is in the locked state, it prevents the support member B1400 from sliding relative to the turntable B1300, while when the locking mechanism is in the unlocked state, it allows the support member B1400 to slide relative to the turntable B1300. The operating element B1410 can be operated by a caregiver to switch the locking mechanism from the locked state to the unlocked state.

[0190] In some other embodiments, the seat portion B1200 may be fixedly connected to the support member B1400, so that the seat portion B1200 does not swing laterally relative to the base B1100. In some other embodiments, the support member B1400 may be fixedly connected to the turntable B1300, or may be integral with the turntable B1300. In still other embodiments, the support member B1400 may be pivotally connected to the base B1100, and the turntable B1300 is fixedly connected to the support member B1400, with the support member B1400 driving the turntable B1300 to rotate relative to the base B1100. In still other embodiments, the support member B1400 may be omitted, in which case the seat portion B1200 is directly connected to the turntable B1300.

[0191] In some embodiments of this disclosure, the turntable or base has a slide rail, and the seat portion B1200 slidably engages with the slide rail and can slide between a first position and a second position. When the turntable B1300 rotates to a lateral position, the seat portion B1200 can slide along the slide rail towards the backrest portion B1220 from the first position to the second position. For example, if a child safety seat B1000 is installed on the left rear seat of a vehicle, i.e., the child safety seat B1000 is adjacent to the left door of the vehicle (not shown), referring first to FIG30, the child safety seat B1000 is in a forward-facing mode, and the seat portion B1200 is located in a first position closer to the left door. Referring further to Figure 32, when the turntable B1300 rotates to the left position, the seat portion B1200 slides along the lateral direction of the base B1100 (i.e., the left-right direction in Figure 32) from a first position corresponding to the center of the bearing surface of the base B1100, toward the backrest portion B1220 (i.e., toward the right direction in Figure 32) to a second position away from the center of the bearing surface of the base B1100, that is, to the position where the seat portion B1200 is located in Figure 32. For example, when the turntable B1300 rotates to the right position, the seat portion B1200 slides along the lateral direction of the base B1100 (i.e., the left-right direction in Figure 33) from a first position corresponding to the center of the bearing surface of the base B1100, toward the backrest portion B1220 (i.e., toward the left direction in Figure 33) to a second position further away from the center of the bearing surface of the base B1100, that is, to the position where the seat portion B1200 is located in Figure 33. As mentioned earlier, turntable B1300 is roughly circular in shape. It can be understood that the position of turntable B1300 described in this article corresponds to the center of the circular cross-section of turntable B1300.

[0192] In some other embodiments, when the child safety seat B1000 is in a side-facing mode, the seat portion B1200 is also configured to move along a slide rail toward the side of the seat portion B1210. For example, when the child safety seat B1000 is installed on the left rear seat of a vehicle, and the seat portion B1200 is rotated so that the opening faces the right side of the vehicle, the seat portion B1200 can be moved toward the side of the seat portion B1210, so that the seat portion B1200 is closer to the right rear seat of the vehicle.

[0193] It should be noted that although the child safety seat B1000 switches from a forward-facing mode to a left-facing side-facing mode during the transition from Figure 30 to Figure 32 (i.e., the seat portion B1200 moves to the right from the base B1100 from the first position to the second position), the longer length of the seat portion B1200 faces the door after rotating to face the left. This should not be interpreted as the distance between the edge of the seat portion B1200 (e.g., the edge of the seat portion corresponding to the child's feet in Figure 32) and the adjacent door being greater when the seat portion B1200 is in the second position than the distance between the edge of the seat portion B1200 (e.g., the edge of the seat portion corresponding to the child's left hand in Figure 30) and the adjacent door being in the first position. It is sufficient that the seat portion B1200 can move away from the adjacent door relative to the base B1100.

[0194] Referring to Figures 35A to 35D, and in conjunction with Figures 30 to 33, when the child safety seat B1000 is in forward-facing mode, the turntable B1300 is positioned closer to the front end B1111 of the base B1100. When the child safety seat B1000 is in rear-facing mode, the turntable B1300 is positioned closer to the rear end B1112 of the base B1100. The front end B1111 of the base B1100 is the end where the support foot B1120 is located, and the rear end B1112 of the base B1100 is the end opposite to the front end B1111. In this embodiment, since the seat portion B1200 is fixed to the turntable B1300 via the support member B1400, the seat portion B1200 can rotate and move synchronously with the turntable B1300. When the child safety seat B1000 is in forward-facing mode, the seat section B1200 is positioned closer to the front end B1111 of the base B1100. Therefore, there is more space between the backrest section B1220 and the backrest of the vehicle seat in which the child safety seat B1000 is installed, allowing for greater tilt angle adjustment of the seat section B1200 in its longitudinal direction.

[0195] When the child safety seat B1000 is in left-facing mode, the turntable B1300 is positioned further to the left of the base B1100, as shown in Figure 35C. When the child safety seat B1000 is in right-facing mode, the turntable B1300 is positioned further to the right of the base B1100, as shown in Figure 35D. In other words, when the turntable B1300 is rotated from a forward or rearward position to a left-facing position, it shifts to the right side of the base B1100, moving away from the left side; conversely, when the turntable B1300 is rotated from a forward or rearward position to a right-facing position, it shifts to the left side of the base B1100, moving away from the right side. Accordingly, when the child safety seat B1000 is in either the left-facing or right-facing mode, the seat portion B1200 is able to move away from the door facing the opening direction of the seat portion B1200, so that when the seat portion B1200 is rotated to the side by the turntable B1300, it can maintain a sufficient distance from the door, thereby preventing the seat portion B1200 or the child placed in the child safety seat B1000 from touching the door, and meeting the regulatory requirements related to the size of the seat portion B1200 of the child safety seat B1000 in the side-facing mode.

[0196] Referring again to Figures 35A to 35D, the base B1100 includes a limiting mechanism B1130, which is adapted to have a clearance fit with the turntable B1300. Specifically, when the turntable B1300 is rotated to a lateral position, as the turntable B1300 moves from an initial first position to a second position (i.e., the left-right direction in Figures 35C and 35D) away from the base B1100 along the lateral direction (i.e., the left-right direction in Figures 35C and 35D), away from the left or right side of the base B1100, the limiting mechanism B1130 maintains a clearance fit with the turntable B1300 from above. The limiting mechanism B1130 extends in the lateral direction of the base B1100 such that during the movement of the turntable B1300 from the first position to the second position, the limiting mechanism B1130 maintains a clearance fit with the turntable B1300 from above. Because the center of gravity of the seat section B1200 moves away from the connection structure of the base B1100 after movement in lateral mode, the connection structure between the turntable B1300 and the base B1100 will bear a greater torque in the front-rear direction under the action of inertia when the vehicle collides. Therefore, adding a limiting structure at the top can enhance the connection strength between the turntable B1300 and the base B1100 and simplify the connection structure between the turntable B1300 and the seat 1100. The second position to which the turntable B1300 moves after rotating to the left position (i.e., the position of the turntable B1300 in Figure 35C) is referred to as the "second left position", and the second position to which the turntable B1300 moves after rotating to the right position is referred to as the "second right position" (i.e., the position of the turntable B1300 in Figure 35C). Specifically, the limiting mechanism B1130 includes a first limiting mechanism B1131 disposed at the front end of the base B1100 and a second limiting mechanism B1132 disposed at the rear end of the base B1100. Both the first limiting mechanism B1131 and the second limiting mechanism B1132 are in clearance fit with the turntable B1300 at opposite ends of the turntable B1300. Furthermore, both the first limiting mechanism B1131 and the second limiting mechanism B1132 extend in the lateral direction of the base B1100 at least between a second left-hand position and a second right-hand position, such that regardless of whether the turntable B1300 rotates to the left-hand position or the right-hand position, during the process of the turntable B1300 moving from the first position to the second left-hand position or the second right-hand position, both the first limiting mechanism B1131 and the second limiting mechanism B1132 maintain a clearance fit with the turntable B1300.

[0197] Referring to Figures 36 and 37, in this embodiment, the slide rail is implemented by a cross-shaped slide groove B1150 disposed on the base B1100. The base B1100 includes a base cover B1140, and the base cover B1140 is provided with the cross-shaped slide groove B1150. The bottom of the turntable B1300 is provided with a first sliding pin B1311 and a second sliding pin B1312 that slide in cooperation with the cross-shaped slide groove B1150. The cross-shaped slide groove B1150 includes a front slide groove B1150a, a right slide groove B1150b, a rear slide groove B1150c, and a left slide groove B1150d that are interconnected. The front slide groove B1150a and the rear slide groove B1150c are collinear and extend along the longitudinal direction of the base B1100 (i.e., the front-rear direction in FIG. 37). The right slide groove B1150b and the left slide groove B1150d are collinear and extend along the transverse direction of the base B1100 (i.e., the left-right direction in FIG. 37). The longitudinal slide groove formed by the front slide groove B1150a and the rear slide groove B1150c is perpendicular to the transverse slide groove formed by the right slide groove B1150b and the left slide groove B1150d and intersects at the intersection B1150e. The first sliding pin B1311 and the second sliding pin B1312 are arranged along the radial direction of the turntable B1300, for example, along the longitudinal direction of the turntable B1300 (i.e., the front-rear direction in FIG. 36). The first sliding pin B1311 is located near the front end of the turntable B1300, and the second sliding pin B1312 is located near or at the center of the turntable B1300. The first sliding pin B1311 is configured to slide within a longitudinal groove formed by the front slide groove B1150a and the rear slide groove B1150c, and the second sliding pin B1312 is configured to slide within a transverse groove formed by the right slide groove B1150b and the left slide groove B1150d. By sliding the first sliding pin B1311 and the second sliding pin B1312 within the cross slide groove B1150, the turntable B1300 can be rotated.

[0198] Figures 38A to 38D schematically illustrate the positions of the first sliding pin B1311 and the second sliding pin B1312 in the cross groove B1150 in forward, left, backward, and right modes, respectively. Specifically, Figures 38A to 38D show the positions of the first sliding pin B1311 and the second sliding pin B1312 in the cross groove B1150 as the turntable B1300 rotates counterclockwise from the forward mode to the left, backward, and right modes, respectively. As shown in Figure 38A, in the forward mode, the first sliding pin B1311 is located at or near the end of the front groove B1150a, and the second sliding pin B1312 is located at the intersection B1150e. The end of the front slide rail B1150a refers to the end of the front slide rail B1150a opposite to the intersection B1150e. The ends of the right slide rail B1150b, rear slide rail B1150c, and left slide rail B1150d described below have the same meaning. During the process of the turntable B1300 rotating counterclockwise by approximately 90 degrees relative to the base B1100, the second sliding pin B1312 slides from the intersection B1150e along the right slide rail B1150b to the end of the right slide rail B1150b, and the first sliding pin B1311 slides from the end of the front slide rail B1150a along the front slide rail B1150a to the intersection B1150e. After the turntable B1300 rotates counterclockwise by approximately 90 degrees relative to the base B1100, it enters the left-hand mode. In the left-facing mode, because the second sliding pin B1312, which is closer to the center of turntable B1300 than the first sliding pin B1311, is located at the end of the right slide groove B1150b, the center of turntable B1300 is closer to the right side of the turntable. In Figure 38B, the starting position of turntable B1300 in the forward-facing mode is indicated by a dashed line. As can be seen from Figure 38B, when turntable B1300 rotates to the left-facing position, turntable B1300 shifts to the right side of base B1100, thus moving away from the left side of base B1100.

[0199] The process of turntable B1300 continuing to rotate counterclockwise from the left-facing mode, sequentially entering the rear-facing mode and then the right-facing mode, is similar to the process of turntable B1300 rotating from the forward-facing mode to the left-facing mode, and will not be described again here. It should be understood that turntable B1300 can also rotate clockwise. That is, turntable B1300 can rotate in both directions. For example, when turntable B1300 is in the rear-facing position, it can rotate counterclockwise to the right-facing position and clockwise to the left-facing position. As shown in Figure 38C, in the rear-facing mode, the first sliding pin B1311 is located at or near the end of the rear slide groove B1150c, and the second sliding pin B1312 is located at the intersection B1150e. As shown in Figure 38D, in the right-facing mode, the second sliding pin B1312 is located at or near the end of the left slide groove B1150d, and the first sliding pin B1311 is located at the intersection B1150e. In right-hand mode, because the second sliding pin B1312, which is closer to the center of turntable B1300 than the first sliding pin B1311, is located at the end of the left slide groove B1150d, the center of turntable B1300 is closer to the left side of the turntable. In Figure 38D, the starting position of turntable B1300 in rear-hand mode is indicated by a dashed line. As can be seen from Figure 38D, when turntable B1300 rotates to the right-hand position, turntable B1300 shifts to the left side of base B1100, thus moving away from the right side of base B1100.

[0200] Optionally, in other embodiments, the slide rail may include a first slide groove and a second slide groove. The first slide groove may be the front slide groove B1150a of FIG. 38A, and the second slide groove may be the right slide groove B1150b of FIG. 38A. The extending directions of the first and second slide grooves are substantially perpendicular, that is, the first and second slide grooves form an L-shaped slide groove. In this case, the child safety seat B1000 can switch between a forward-facing mode and a left-facing side-facing mode. The bottom of the turntable B1300 is provided with at least one sliding pin. The at least one sliding pin includes, for example, a first sliding pin B1311 and a second sliding pin B1312. The first sliding pin B1311 is slidably fitted into the front slide groove B1150a and is able to slide within the front slide groove B1150a; the second sliding pin (1312) is slidably fitted into the right slide groove B1150b and is able to slide within the right slide groove B1150b. Referring to Figure 38A, the intersection of the front slide rail B1150a and the right slide rail B1150b is approximately located at the center of the base's bearing surface. When the caregiver rotates the seat portion B1200 counterclockwise, the first sliding pin B1311 slides along B1150a towards the center of the base's bearing surface. The turntable then drives the second sliding pin B1312 to slide along the right slide rail B1150b towards the center of the base's bearing surface, thereby moving the seat portion B1200 from a first position to a second position. In another embodiment, the first slide rail can be the rear slide rail B1150c of Figure 38A, and the second slide rail can be the left slide rail B1150d and the right slide rail B1150b of Figure 38A. The extension directions of the first and second slide rails are substantially perpendicular, i.e., the first and second slide rails form a T-shaped slide rail. At this point, the B1000 child safety seat can switch between rear-facing mode, left-facing side-facing mode, and right-facing side-facing mode, which will not be described in detail here.

[0201] In some embodiments of this disclosure, the child safety seat B1000 may further include a rotation locking mechanism for selectively preventing or allowing rotation of the turntable B1300 relative to the base B1100 to lock the turntable B1300 in a specific orientation. Referring back to Figures 36 and 37, the rotation locking mechanism includes a first locking pin B1320 disposed at the bottom of the turntable B1300 and a plurality of locking holes disposed on the base cover B1140 of the base B1100. When the turntable B1300 is in a forward, rearward, leftward, or rightward position, the first locking pin B1320 can be aligned and inserted into the corresponding locking hole, thereby locking the turntable B1300 in a specific orientation, and correspondingly locking the child safety seat B1000 in a specific mode among forward, rearward, leftward, and rightward modes. Specifically, the first locking pin B1320 is movably disposed on the turntable B1300 in a direction substantially perpendicular to the bottom surface of the turntable B1300. A plurality of locking holes include a forward locking hole B1141, a rear locking hole B1142, a first lateral locking hole B1143, and a second lateral locking hole B1144 disposed on the base cover B1140. The forward locking hole B1141 and the rear locking hole B1142 are located at opposite ends of the base B1100 in the longitudinal direction, and the first lateral locking hole B1143 and the second lateral locking hole B1144 are located at opposite ends of the base B1100 in the transverse direction. The first locking pin B1320 is adapted to selectively engage with any one of the forward locking hole B1141, the rear locking hole B1142, the first lateral locking hole B1143, and the second lateral locking hole B1144. For example, when the child safety seat B1000 is in forward-facing mode, i.e., when the turntable B1300 is in the forward-facing position, the first locking pin B1320 is adapted to be inserted into the forward-facing locking hole B1141, and the turntable B1300 is locked in the forward-facing position by the engagement of the first locking pin B1320 with the forward-facing locking hole B1141. When the first locking pin B1320 is engaged with the rearward locking hole B1142, the turntable B1300 is locked in the rearward position. When the first locking pin B1320 is engaged with the first lateral locking hole B1143 or the second lateral locking hole B1144, the turntable B1300 is locked in the lateral position. In this embodiment, the first lateral locking hole B1143 corresponds to the left position, and the second lateral locking hole B1144 corresponds to the right position. That is, when the first locking pin B1320 engages with the first lateral locking hole B1143, the turntable B1300 is locked in the left position, and when the first locking pin B1320 engages with the second lateral locking hole B1144, the turntable B1300 is locked in the right position.As shown in Figure 37, the first lateral locking hole B1143 and the second lateral locking hole B1144 are further away from the center of the bearing surface of the base B1100 than the first lateral locking hole B1141 and the second lateral locking hole B1142. In other words, the distance between the first lateral locking hole B1143 and the second lateral locking hole B1144 in the lateral direction of the base B1100 is greater than the distance between the first lateral locking hole B1141 and the second lateral locking hole B1142 in the longitudinal direction of the base B1100.

[0202] The first locking pin B1320 is movable between an engaged position and a disengaged position. When the first locking pin B1320 is in the engaged position, it engages with a corresponding locking hole, thereby preventing rotation of the turntable B1300 relative to the base B1100. When the first locking pin B1320 is in the disengaged position, it disengages from the corresponding locking hole, thereby allowing rotation of the turntable B1300 relative to the base B1100. The child safety seat B1000 is provided with a release operation B1230 (see Figure 30). The release operation B1230 is provided, for example, in the seat portion B1200, and can be operated by a caregiver to move the first locking pin B1320 from the engaged position to the disengaged position.

[0203] Referring to Figures 39 and 40, the base B1100 is provided with a first slider B1154a and a second slider B1154b. When the turntable B1300 is installed on the base B1100, the first sliding pin B1311 and the second sliding pin B1312 pass through the cross groove B1150 and are connected to the first slider B1154a and the second slider B1154b respectively. A cross groove B1151 is provided on the bottom surface of the base cover B1140 at a position corresponding to the cross groove B1150. The cross groove B1151 opens downwards, and the cross groove B1150 is formed on the top surface of the cross groove B1151. The cross-shaped groove B1151 includes a front groove B1151a, a right groove B1151b, a rear groove B1151c, and a left groove B1151d corresponding to the front groove B1150a, the right groove B1150b, the rear groove B1150c, and the left groove B1150d. The front groove B1151a and the rear groove B1151c are collinear and extend along the longitudinal direction of the base B1100 (i.e., the front-rear direction in FIG. 39), while the right groove B1151b and the left groove B1151d are collinear and extend along the transverse direction of the base B1100 (i.e., the left-right direction in FIG. 39). The longitudinal groove formed by the front groove B1151a and the rear groove B1151c is perpendicular to the transverse groove formed by the right groove B1151b and the left groove B1151d, and they communicate at their intersection. The first slider B1154a can slide along the longitudinal groove, and the second slider B1154b can slide along the transverse groove.

[0204] The front groove B1151a, right groove B1151b, rear groove B1151c, and left groove B1151d have the same structure. The rear groove B1151c will be described below as an example. Referring to Figure 39, a limiting rib B1152 is provided at the end of the rear groove B1151c, and two abutment ribs B1153 extending along the extending direction of the rear groove B1151c are provided on the top surface of the rear groove B1151c. Similarly, each of the front groove B1151a, right groove B1151b, and rear groove B1151c is also provided with a limiting rib B1152 and two abutment ribs B1153. The limiting ribs B1152 of the front groove B1151a and the rear groove B1151c limit the sliding distance of the first slider B1154a along the longitudinal groove. The limiting ribs B1152 of the right groove B1151b and the left groove B1151d limit the sliding distance of the second slider B1154b along the transverse groove. Both the first slider B1154a and the second slider B1154b may be equipped with multiple rollers (not shown). The rollers abut against the abutting ribs B1153 located in the cross groove B1151 of the base cover B1140. When the turntable B1300 rotates relative to the base B1100 to change direction, the turntable B1300 will drive the first slider B1154a and the second slider B1154b to slide along the longitudinal groove and the transverse groove, respectively. The rollers allow the first slider B1154a and the second slider B1154b to slide more smoothly.

[0205] Referring to Figures 41 to 43, the turntable B1300 includes an upper cover B1331 and a lower cover B1332. A bracket B1340 is mounted on the lower cover B1332 of the turntable B1300, and a support member B1400 is slidably connected to the bracket B1340. In this embodiment, the tilt angle of the seat portion B1200 is adjusted by sliding the support member B1400 relative to the bracket B1340. The bracket B1340 is arranged radially along the turntable B1300. The bracket B1340 can be permanently fixed to the upper surface of the lower cover B1332 by means of connection such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivets. The top of the bracket B1340 protrudes from an opening in the upper cover B1331. The turntable B1300 also includes a first connecting piece B1341a and a second connecting piece B1341b. Both the first connecting piece B1341a and the second connecting piece B1341b are fixed to the bracket B1340. A first sliding pin B1311 and a second sliding pin B1312 are respectively fixed to the first connecting piece B1341a and the second connecting piece B1341b. The first connecting piece B1341a and the second connecting piece B1341b can be fixed to the bracket B1340 by a permanent connection method such as welding or bonding, or by fasteners such as threaded fasteners, pin fasteners, or rivets. The first sliding pin B1311 and the second sliding pin B1312 can be fixed to the first connecting piece B1341a and the second connecting piece B1341b in a similar manner.

[0206] Referring to Figures 44 to 46, a first guide groove B1342 is provided on opposite sides of the front portion of the bracket B1340, and a second guide groove B1343 is provided on opposite sides of the rear portion of the bracket B1340. Both the first guide groove B1342 and the second guide groove B1343 extend radially along the turntable B1300. The rotation locking mechanism also includes a driving member disposed within the bracket B1340 and slidable relative to the bracket B1340 radially along the turntable B1300. In this embodiment, the driving member includes a first driving member B1351 and a second driving member B1352, both having the same structure. The front ends of the first driving member B1351 and the second driving member B1352 are connected via a first sliding rod B1361, and the rear ends of the first driving member B1351 and the second driving member B1352 are connected via a second sliding rod B1362. The two ends of the first sliding rod B1361 are slidably embedded in two first guide grooves B1342 located on opposite sides of the front of the bracket B1340. The two ends of the second sliding rod B1362 are slidably embedded in two second guide grooves 1343 located on opposite sides of the rear of the bracket B1340. Through the sliding engagement of the first sliding rod B1361 with the first guide grooves B1342 and the second sliding rod B1362 with the second guide grooves 1343, the first driving member B1351 and the second driving member B1352 are slidable relative to the bracket B1340.

[0207] Both the first driving member B1351 and the second driving member B1352 are provided with a first driving groove B1353. The bracket B1340 also has third guide grooves B1344 on opposite sides. The first guide groove 6521 extends in a direction substantially perpendicular to the sliding direction of the first driving member B1351 and the second driving member B1352. The rotation locking mechanism also includes a driving rod B1370. A first locking pin B1320 is fixed between the first driving member B1351 and the second driving member B1352 to the driving rod B1370. The two ends of the driving rod B1370, after passing through the first driving grooves B1353 of the first driving member B1351 and the second driving member B1352, are slidably embedded in the two third guide grooves B1344 located on opposite sides of the bracket B1340. The drive rod B1370, the first drive groove B1353, and the third guide groove B1344 cooperate to convert the radial movement of the first drive member B1351 and the second drive member B1352 along the turntable B1300 into the movement of the first locking pin B1320 in a direction substantially perpendicular to the bottom surface of the turntable B1300. Accordingly, when the first drive member B1351 and the second drive member B1352 move radially relative to the bracket B1340 along the turntable B1300, they drive the first locking pin B1320 to move between an engaged position and a disengaged position in a direction perpendicular to the bottom surface of the turntable B1300. When the first locking pin B1320 is in the engaged position, it protrudes from the bottom surface of the turntable B1300, as shown in Figure 45. At this time, the first locking pin B1320 is adapted to be inserted into and engaged with the corresponding locking hole. When the first locking pin B1320 is in the disengaged position, the first locking pin B1320 retracts into the turntable B1300, as shown in Figure 46. At this time, the first locking pin B1320 disengages from the corresponding locking hole.

[0208] In this embodiment, the rotation locking mechanism is connected to the release operation member B1230 via the first traction member B1510 (see FIG. 30). Specifically, one end of the first traction member B1510 is connected to the first sliding rod B1361, and the other end of the first traction member B1510 is connected to the release operation member. As described above, the release operation member can be provided, for example, in the seat portion B1200. A first elastic member B1380 is connected between the second sliding rod B1362 and the bracket B1340. In this embodiment, the first elastic member B1380 is a tension spring, one end of which is connected to the second sliding rod B1362, and the other end is connected to the rear end of the bracket B1340. In other embodiments, the first elastic member B1380 can be a compression spring, a wave spring, a torsion spring, or any other suitable type of spring. Similarly, other elastic members mentioned below can also be tension springs, compression springs, wave springs, torsion springs, or any other suitable type of spring, which will not be described in detail further.

[0209] Figure 45 shows the first locking pin B1320 in the engaged position. In this position, the turntable B1300 cannot rotate relative to the base B1100. When the caregiver operates the release mechanism B1230, the first traction member B1510 is pulled. The first traction member B1510 drives the first drive member B1351 and the second drive member B1352 forward via the first sliding rod B1361, stretching the first elastic member B1380 connected between the second sliding rod B1362 and the bracket B1340. During this process, driven by the first drive groove B1353, the drive rod B1370 moves upward, and the first locking pin B1320 fixed to the drive rod B1370 also moves upward, causing the first locking pin B1320 to retract into the turntable B1300. Thus, the first locking pin B1320 disengages from the corresponding locking hole and is in the disengaged position shown in Figure 46. At this time, the turntable B1300 is allowed to rotate relative to the base B1100 to achieve the turning of the seat section B1200. When the caregiver finishes operating the release mechanism B1230, the first traction member B1510 no longer applies tension to the first sliding rod B1361, and under the elastic restoring force of the first elastic member B1380, the first drive member B1351 and the second drive member B1352 tend to move backward. When the first locking pin B1320 is aligned with the corresponding locking hole, the first locking pin B1320 is inserted into the corresponding locking hole, and the first drive member B1351 and the second drive member B1352 move backward. The first locking pin B1320 returns to the engaged position shown in FIG. 45.

[0210] It is understood that the structure and operation of the rotary locking mechanism described above are merely illustrative examples, and this disclosure is not limited thereto. Those skilled in the art can use any other suitable method to lock and unlock the orientation of the turntable B1300 after it has been turned.

[0211] It is generally recommended that smaller children (e.g., children under 15 months old, shorter than 76 cm, or weighing less than 18 kg) use a child safety seat in rear-facing mode to ensure their safety. In some embodiments of this disclosure, to prevent caregivers from mistakenly placing smaller children in a child safety seat B1000 in a usage mode other than rear-facing (e.g., forward-facing mode), the child safety seat B1000 is provided with an anti-misuse mechanism that restricts the forward position of the turntable B1300.

[0212] Referring to Figure 40, the anti-misuse mechanism includes a blocking member B1156, which is adapted to slide along the front groove B1151a of the first slider B1154a to prevent the first slider B1154a from sliding forward along the front groove B1151a. Correspondingly, it prevents the first sliding pin B1311 connected to the first slider B1154a from sliding forward along the front groove B1150a, thereby preventing the turntable B1300 from rotating to the forward position. Specifically, the blocking member B1156 is disposed on the base cover B1140 and is movable between an extended position and a retracted position. Figure 40 shows the blocking member B1156 in the retracted position. When the blocking member B1156 moves to the extended position, it extends into the front groove B1151a to prevent the first slider B1154a from sliding forward along the front groove B1151a. The base cover B1140 is provided with a resilient mounting seat B1158. A second elastic element B1157 is disposed between the elastic element mounting base B1158 and the blocking element B1156. In this embodiment, the second elastic element B1157 is a compression spring. In other embodiments, the second elastic element B1157 can be a tension spring, a wave spring, a torsion spring, or any other suitable type of spring. One end of the second elastic element B1157 abuts against the blocking element B1156, and the other end of the second elastic element B1157 is fixed to the elastic element mounting base B1158. When the blocking element B1156 is in the retracted position shown in FIG. 40, the second elastic element B1157 is in a compressed state, which is adapted to bias the blocking element B1156 toward the extended position. The anti-misuse mechanism also includes an anti-misuse operating element B1600, which will be described in detail below. The blocking element B1156 is connected to the anti-misuse operating element B1600 via a traction element (not shown). The anti-misuse operating component B1600 can pull the blocking component B1156 via the traction component and keep the blocking component B1156 in the retracted position. When the anti-misuse operating component B1600 releases the pulling force on the blocking component B1156, the blocking component B1156 can move to the extended position under the elastic restoring force of the second elastic component B1157.

[0213] Referring to Figures 47 and 48, in this embodiment, an anti-misuse operating element B1600 is disposed on the base B1100. The anti-misuse operating element B1600 is in the form of a push-button mechanism and is movable between a forward-facing mode prohibited position and a forward-facing mode permitted position. When the anti-misuse operating element B1600 is pushed to the forward-facing mode prohibited position, for example, as shown in Figure 47, when the anti-misuse operating element B1600 is pushed to the right, the child safety seat B1000 cannot be used in forward-facing mode. When the anti-misuse operating element B1600 is on the right side, a first mark B1610 is exposed. The first mark B1610 indicates that the child safety seat B1000 is intended for children under 15 months of age, weighing under 18 kg, and / or under 76 cm in height. In this embodiment, the first mark B1610 is displayed as "0-15M". When the anti-misuse operating component B1600 is in the forward mode prohibited position, the blocking component B1156 is in the extended position under the push of the second elastic component B1157. For example, referring to Figures 49 and 50, when the blocking component B1156 is in the extended position, the blocking component B1156 extends into the front slide groove B1150a to prevent the first slider B1154a from sliding forward along the front slide groove B1150a. In Figures 49 and 50, the first slider B1154a is located at the intersection of the longitudinal groove formed by the front groove B1151a and the rear groove B1151c and the transverse groove formed by the right groove B1151b and the left groove B1151d, and the second slider B1154b is adjacent to the limiting rib B1152 provided in the left slide groove B1150d. Accordingly, the first sliding pin B1311 is located at the intersection B1150e, and the second sliding pin B1312 is located at the end of the left slide groove B1150d. In this case, the turntable B1300 is in the rightward position. Because the forward sliding of the first slider B1154a along the front slide groove B1150a is blocked by the blocking member B1156, the first slider B1154a cannot continue to slide forward along the front slide groove B1150a. Therefore, the turntable B1300 cannot rotate to the forward position. Similarly, when the turntable B1300 is in the leftward position, it will also be unable to rotate to the forward position due to the obstruction of the blocking member B1156, which will not be elaborated further here.

[0214] When the anti-misuse operating component B1600 is pushed to the forward-facing mode permitted position, for example, as shown in FIG48, when the anti-misuse operating component B1600 is pushed to the left, the child safety seat B1000 is permitted to be used in forward-facing mode. When the anti-misuse operating component B1600 is on the left, the second mark B1620 is exposed. The second mark B1620 indicates that the child safety seat B1000 is applicable to children older than 15 months, weighing more than 18 kg, and / or taller than 76 cm. In this embodiment, the second mark B1620 is shown as "15M+". When the anti-misuse operating component B1600 is in the forward-facing mode permitted position, the blocking component B1156 is in a retracted position under the pull of the traction component. For example, referring to FIG51 and FIG52, when the blocking component B1156 is in the retracted position, the blocking component B1156 disengages from the front slide rail B1150a to allow the first slider B1154a to slide forward along the front slide rail B1150a. Therefore, turntable B1300 can be rotated from the right-hand position or the left-hand position to the forward position.

[0215] Figures 53 and 54 illustrate a turntable B1300 and a base B1100 according to another embodiment of the present disclosure. The main difference between this embodiment and the embodiments described above lies in the forward and rearward locking methods of the turntable B1300; the lateral locking method of the turntable B1300 is the same as in the embodiments described above. Specifically, only a first lateral locking hole B1143 and a second lateral locking hole B1144 are provided on the base cover B1140. By engaging the first locking pin B1320 as described above with the first lateral locking hole B1143 or the second lateral locking hole B1144, the turntable B1300 can be locked in a lateral position, for example, a leftward or rightward position.

[0216] In this embodiment, the rotation locking mechanism includes a front-to-back locking hole B1333, a front locking member B1160, and a rear locking member B1170 disposed on the turntable B1300. Specifically, the front-to-back locking hole B1333 is disposed at the front end of the turntable B1300. The front-to-back locking hole B1333 is adapted to engage with the front locking member B1160 or the rear locking member B1170, which will be described in detail below, to lock the turntable B1300 in a front or rear position.

[0217] Referring to Figures 55 and 56, a forward locking member B1160 is disposed at the front end of the base B1100, and a rearward locking member B1170 is disposed at the rear end of the base B1100. Both the forward locking member B1160 and the rearward locking member B1170 are movable between an engaged position and a disengaged position. When the forward and rearward locking hole B1333 is aligned with the forward locking member B1160, the forward locking member B1160 is adapted to move from the disengaged position to the engaged position to insert into the forward and rearward locking hole B1333, thereby engaging the forward locking member B1160 with the forward and rearward locking hole B1333, thus preventing the turntable B1300 from rotating relative to the base B1100, thereby locking the turntable B1300 in the forward position. When the rearward locking hole B1333 is aligned with the rearward locking member B1170, the rearward locking member B1170 is adapted to move from the disengaged position to the engaged position to insert into the rearward locking hole B1333, so that the rearward locking member B1170 engages with the rearward locking hole B1333, thereby preventing the turntable B1300 from rotating relative to the base B1100. Thus, the turntable B1300 is locked in the rearward position.

[0218] Referring to Figure 57, the forward locking member B1160 and the rearward locking member B1170 have similar structures. Both the forward locking member B1160 and the rearward locking member B1170 are slidably connected to the lower base cover B1180 of the base B1100. A third elastic member B1161 is provided between the forward locking member B1160 and the lower base cover B1180. In this embodiment, the third elastic member B1161 is a tension spring. In other embodiments, the third elastic member B1161 can be a compression spring, a wave spring, a torsion spring, or any other suitable type of spring. One end of the third elastic member B1161 is connected to the forward locking member B1160, and the other end of the third elastic member B1161 is fixed to the lower base cover B1180. The third elastic member B1161 is adapted to apply a pulling force to the forward locking member B1160 towards its engagement position, such that when the forward and backward locking holes B1333 are aligned with the forward locking member B1160, the forward locking member B1160 can be inserted into the forward and backward locking holes B1333 to engage with them. A fourth elastic member B1171 is provided between the backward locking member B1170 and the lower cover B1180 of the base. In this embodiment, the fourth elastic member B1171 is a compression spring. In other embodiments, the fourth elastic member B1171 can be a tension spring, a wave spring, a torsion spring, or any other suitable type of spring. One end of the fourth elastic member B1171 abuts against the backward locking member B1170, and the other end of the fourth elastic member B1171 is fixed to the lower cover B1180 of the base. The fourth elastic member B1171 is adapted to apply a thrust to the rear locking member B1170 toward the engagement position of the rear locking member B1170, so that when the front rear locking hole B1333 is aligned with the rear locking member B1170, the rear locking member B1170 can be inserted into the front and rear locking hole B1333 to engage with the front and rear locking hole B1333.

[0219] Referring to Figures 58 and 59, the turntable B1300 includes a pusher B1390, which is slidably disposed on the lower cover B1332 of the turntable and movable between an extended position and a retracted position. Specifically, one end of the pusher B1390 is connected to a first sliding rod B1361, and the other end of the pusher B1390 forms a push portion B1391. The sliding direction of the pusher B1390 corresponds to the front-rear locking hole B1333. The push portion B1391 is adapted to extend into the front-rear locking hole B1333. When one of the front locking member B1160 or the rear locking member B1170 is inserted into the front-rear locking hole B1333, the push portion B1391 extending into the front-rear locking hole B1333 can push the corresponding one of the front locking member B1160 or the rear locking member B1170 out of the front-rear locking hole B1333. The pusher B1390 is provided with an elastic arm B1392, the end of which abuts against the inner wall of the turntable B1300. When the pusher B1390 is in the extended position, the elastic arm B1392 is adapted to bias the pusher B1390 toward the retracted position. As described in the previous embodiment, the first sliding rod B1361 is connected to the release operation member B1230 via the first traction member B1510. When the caregiver operates the release operation member, the first traction member B1510 is pulled. The first traction member B1510 drives the pusher B1390 forward via the first sliding rod B1361, moving the pusher B1390 from the retracted position shown in FIG. 58 to the extended position shown in FIG. 59. When the caregiver finishes operating the release mechanism, the first traction member B1510 no longer applies a pulling force to the first sliding rod B1361. Under the action of the elastic restoring force of the elastic arm B1392, the pusher member B1390 will move from the extended position shown in Figure 59 to the retracted position shown in Figure 58.

[0220] Referring to Figures 60A, 60B, 61A, and 61B, Figures 60A and 60B show the forward locking member B1160 in the engaged and disengaged positions respectively when the child safety seat is in forward-facing mode, and Figures 61A and 61B show the rearward locking member B1170 in the engaged and disengaged positions respectively when the child safety seat is in rear-facing mode. As shown in Figure 60A, when the child safety seat B1000 is in forward-facing mode, the forward locking member B1160 is inserted into the front-rear locking hole B1333, so that the forward locking member B1160 engages with the front-rear locking hole B1333, thereby preventing the turntable B1300 from rotating relative to the base B1100, and the child safety seat B1000 is locked in forward-facing mode. When it is necessary to release the steering lock of the child safety seat B1000, the caregiver operates the release mechanism. The release mechanism pulls the first sliding rod B1361 via the first traction member B1510. The first sliding rod B1361 drives the push member B1390 to move towards the front-rear locking hole B1333, so that the push member B1391 extends into the front-rear locking hole B1333. The push member B1391 pushes the forward locking member B1160 in the front-rear locking hole B1333, so that the forward locking member B1160 disengages from the front-rear locking hole B1333, as shown in Figure 60B. As shown in Figure 61A, when the child safety seat B1000 is in rear-facing mode, the rear-facing locking member B1170 is inserted into the front-rear locking hole B1333, engaging with the front-rear locking hole B1333 and preventing the turntable B1300 from rotating relative to the base B1100. The child safety seat B1000 is thus locked in rear-facing mode. When it is necessary to release the steering lock of the child safety seat B1000, the caregiver operates the release mechanism B1230. The release mechanism B1230 pulls the first sliding rod B1361 via the first traction member B1510. The first sliding rod B1361 causes the pusher B1390 to move towards the front-rear locking hole B1333, allowing the pusher B1391 to extend into the front-rear locking hole B1333. The pusher B1391 pushes the rear locking member B1170 in the front-rear locking hole B1333, causing the front locking member B1160 to exit the front-rear locking hole B1333 and disengage from it, as shown in Figure 61B.

[0221] Figures 62A and 62C are schematic diagrams illustrating the steering of a child safety seat according to another embodiment of the present disclosure, wherein the seat portion B1200 is schematically shown with dashed lines for ease of explanation. In this embodiment, the seat portion B1200 employs a different shifting method than the embodiment described above when the child safety seat B1000 is in the side-facing mode. The main differences between this embodiment and the embodiment described above will be described below, and similarities will not be repeated.

[0222] In this embodiment, the top of the turntable B1300 is provided with a slide rail. For example, the slide rail may include a first slide rail B2110 and a second slide rail B2120. The bottom of the seat portion B1200 is provided with a third sliding pin B2210 and a fourth sliding pin B2220 that respectively slide in cooperation with the first slide rail B2110 and the second slide rail B2120. Through the sliding cooperation of the third sliding pin B2210 and the fourth sliding pin B2220 with the first slide rail B2110 and the second slide rail B2120, the seat portion B1200 is slidable relative to the turntable B1300. In this embodiment, the child safety seat B1000 also includes a sliding locking mechanism. The sliding locking mechanism is disposed between the seat portion B1200 and the turntable B1300, and includes a sliding locking hole B2130 disposed on the turntable B1300, and a second locking pin B2230 disposed at the bottom of the seat portion B1200. When the child safety seat B1000 is in the side-facing mode, that is, when the turntable B1300 is in the side position, the second locking pin B2230 is adapted to insert into the sliding locking hole B2130 to lock the seat portion B1200 in a specific side-facing position. The following description uses the example of the child safety seat B1000 according to this embodiment being installed in the right rear seat of a vehicle. The sliding locking mechanism may also include a release operation member B1230, which can be referred to in Figure 30 and will not be described again here. In other embodiments, the length of the slide rail at the top of the turntable B1300 can be set to be shorter, allowing the seat portion B1200 to slide and lock between a first position corresponding to the forward and / or rearward modes and a second position corresponding to the side-facing mode.

[0223] As shown in Figure 62A, the turntable B1300 is in the forward position, and the opening of the seat portion B1200 faces the front of the vehicle. The seat portion B1200 is in the first position relative to the turntable B1300. After the seat portion B1200 rotates approximately 90 degrees to the right with the turntable B1300 to the right-facing position, the opening of the seat portion B1200 faces the right rear door of the vehicle. Through the sliding engagement of the third sliding pin B2210 and the fourth sliding pin B2220 with the first slide rail B2110 and the second slide rail B2120 respectively, the seat portion B1200 can move relative to the turntable B1300 from the first position to the right (i.e., towards the right rear door) or to the left (i.e., away from the right rear door). For example, as shown in Figure 62B, the seat portion B1200 can move relative to the turntable B1300 from the first position to the right to the third position. At this point, the third position of the seat B1200 is closer to the right rear door than the first position, making it easier for the caregiver to place the child in the child safety seat B1000 when not in use. As shown in Figure 62C, the seat B1200 can move to the left relative to the turntable B1300 from the first position to the second position. At this point, the second position of the seat B1200 is further away from the right rear door than the first position. When the seat B1200 is in the second position, the second locking pin B2230 aligns with the sliding locking hole B2130, so the second locking pin B2230 can be inserted into the sliding locking hole B2130 to engage with the sliding locking hole B2130, thereby locking the seat B1200 in the second position to maintain an appropriate distance between the seat B1200 and the right rear door. It is understood that the first position described here is the position of the seat part B1200 relative to the turntable B1300 when the child safety seat B1000 is used in a forward or rearward manner, and the second and third positions are the positions that the seat part B1200 can move to relative to the turntable B1300 when the child safety seat B1000 is used in a side-facing manner.

[0224] It is understood that when the second locking pin B2230 disengages from the sliding locking hole B2130, the seat portion B1200 can move between a second position and a third position relative to the turntable B1300. Furthermore, the sliding locking mechanism includes another sliding locking hole (not shown) provided on the turntable B1300, which is close to or located at the center of the turntable B1300. When the seat portion B1200 is in the first position relative to the turntable B1300, the second locking pin B2230 is adapted to engage with this other sliding locking hole to lock the seat portion B1200 in the first position. When the vehicle is in motion, the seat portion B1200 can be locked relative to the turntable B1300 in the first position (at which time the turntable B1300 also needs to be rotated to the forward or rearward direction) and the second position, thereby providing multiple seating modes such as forward-facing and side-facing modes. Furthermore, it is also understood that after the seat part B1200 rotates from the forward position to the left position, or from the rear position to the right or left position with the turntable B1300, the same method can be used to move the seat part B1200 relative to the turntable B1300 and lock the position of the seat part B1200 relative to the turntable B1300, which will not be elaborated here.

[0225] Figures 63A to 63C are schematic diagrams illustrating the steering of a child safety seat according to yet another embodiment of the present disclosure. In this embodiment, when the turntable B1300 is in the lateral position, a different displacement method is used than that described in the embodiments above. The main differences between this embodiment and the embodiments described above will be described below, and the similarities will not be repeated.

[0226] In this embodiment, a third slide rail B3110 is provided at the bottom of the turntable B1300, and a fifth sliding pin B3210 is provided at the top of the base B1100, which slides in cooperation with the third slide rail B3110. The fifth sliding pin B3210 is fixed to the base B1100 and is generally located at the rotation center position when the turntable B1300 rotates relative to the base B1100. The third slide rail B3110 is configured to rotate around the fifth sliding pin B3210 when the turntable B1300 rotates relative to the base B1100. Through the sliding cooperation between the third slide rail B3110 and the fifth sliding pin B3210, the turntable B1300 can slide relative to the base B1100. The third slide rail B3110 has a first end and a second end, and when the third slide rail B3110 rotates around the fifth sliding pin B3210, the fifth sliding pin B3210 is generally located at the first end of the third slide rail B3110. In this embodiment, the sliding locking mechanism includes a second locking pin B2230 disposed at the bottom of the seat portion B1200. The turntable B1300 is provided with a third locking pin B3120, which is disposed near the second end of the third slide rail B3110 and is movable between an extended position and a retracted position. When the third locking pin B3120 is in the extended position, it extends into the third slide rail B3110 to prevent the fifth sliding pin B3210 from sliding relative to the third slide rail B3110. When the third locking pin B3120 is in the retracted position, it retracts from the third slide rail B3110. Specifically, when the third and fifth sliding pins B3210 are at the second end of the third slide rail B3110, the third locking pin B3120 in the extended position can lock the fifth sliding pin B3210 at the second end of the third slide rail B3110. The turntable B1300 also includes a locking operation member (not shown) and a fifth elastic member B3130. The fifth elastic member B3130 is adapted to bias the fifth sliding pin B3210 toward the extended position. The locking operation member is configured such that, when not operated, a pulling force is applied to the third locking pin B3120, keeping the third locking pin B3120 in the retracted position; and when operated, the pulling force on the third locking pin B3120 is released, and under the elastic restoring force of the fifth elastic member B3130, the third locking pin B3120 moves from the retracted position to the extended position. The following description uses the example of installing the child safety seat B1000 according to this embodiment in the right rear seat of a vehicle.

[0227] As shown in Figure 63A, when the turntable B1300 is in the forward position, the fifth sliding pin B3210 is located at the first end of the third slide rail B3110. As shown in Figure 63B, when the turntable rotates approximately 90 degrees to the right to the right position, the fifth sliding pin B3210 remains located at the first end of the third slide rail B3110, and the turntable B1300 is in the first position relative to the base B1100. Through the sliding engagement of the third slide rail B3110 and the fifth sliding pin B3210, the turntable B1300 can move relative to the base B1100 from the first position to the left (i.e., away from the right rear door). As shown in Figure 63C, the turntable B1300 moves relative to the base B1100 to the second position, at which point the fifth sliding pin B3210 is located at the second end of the third slide rail B3110. Compared to the first position, the seat portion B1200 is further away from the right rear door of the vehicle in the second position. When turntable B1300 is in the second position, that is, when the fifth sliding pin B3210 is located at the second end of the third slide rail B3110, the caregiver can operate the locking mechanism to move the third locking pin B3120 from the retracted position to the extended position, thereby locking the fifth sliding pin B3210 at the second end of the third slide rail B3110. It can be understood that after turntable B1300 is rotated from the forward position to the left position, or from the rear position to the right or left position, the same method can be used to move and lock the position of turntable B1300 relative to base B1100, which will not be elaborated further here.

[0228] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0229] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this disclosure. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be determined by the appended claims.

Claims

1. A child safety seat (A10), comprising: Base (A100); A turntable (A300) is rotatably disposed on the base (A100) along a first axis; A support member (A400) is disposed on the turntable (A300) and is adapted to rotate with the turntable (A300) relative to the base (A100); The seat portion (A200) is adapted to rotate relative to the base (A100) by being driven by the turntable (A300), wherein, The seat portion (A200) is rotatably connected to the support member (A400) along the second axis, such that the seat portion (A200) is swingable in the lateral direction of the seat portion (A200).

2. The child safety seat (A10) according to claim 1, characterized in that, The base (A100) has a bearing surface that is inclined in the front-to-back direction, and the turntable (A300) is positioned on the bearing surface. When the seat portion (A200) rotates relative to the base to deviate from the front-rear direction, the seat portion (A200) can swing to a horizontal position.

3. Child safety seat (A10) according to claim 1 or 2, characterized in that ； The support member (A400) includes a first arm (A410), a second arm (A420), and an intermediate section (A430) located between the first arm (A410) and the second arm (A420); The seat portion (A200) includes a front end (A220) and a rear end (A230), the front end (A220) being rotatably connected to the first support arm (A410) of the support member (A400), and the rear end (A230) being rotatably connected to the second support arm (A420) of the support member (A400), such that a gap is formed between the seat portion (A200) and the turntable (A300); The middle section (A430) of the support member (A400) is disposed on the turntable (A300).

4. The child safety seat (A10) according to claim 3, characterized in that, The middle section (A430) of the support member (A400) is fixedly connected to the turntable (A300), or is slidably connected to the turntable (A300) in the radial direction relative to the turntable (A300).

5. The child safety seat (A10) according to claim 4, characterized in that, The turntable (A300) is provided with a first receiving groove for clamping the intermediate section. One of the first receiving groove and the intermediate section is provided with a plurality of locking holes, and the other of the first receiving groove and the intermediate section is provided with a locking pin, so that the support (A400) can slide lockably along the first receiving groove.

6. The child safety seat (A10) according to claim 1, characterized in that, The child safety seat (A10) also includes a locking element (A500) configured to prevent the swinging of the seat portion (A200) when the child safety seat (A10) is in a non-lateral mode, and to allow the swinging of the seat portion (A200) when the child safety seat (A10) is in a lateral mode.

7. The child safety seat (A10) according to claim 6, characterized in that: The locking element (A500) is disposed on the turntable (A300) and includes a locking pin (A510) and a first driving element (A530). The first driving element (A530) is disposed between the turntable (A300) and the base (A100) and is adapted to drive the locking pin (A510) to move between an engaged position and a disengaged position. The seat portion (A200) is provided with a locking hole (A250); When the turntable (A300) rotates to the lateral position, the first driving member (A530) drives the engaging pin (A510) to move to the disengaged position, thereby disengaging from the engaging hole (A250); and when the turntable (A300) rotates to the non-lateral position, the engaging pin (A510) moves to the engaging position, thereby engaging with the engaging hole (A250).

8. The child safety seat (A10) according to claim 7, characterized in that, The base (A100) has an annular inner edge (A110), and the turntable (A300) is rotatably fitted onto the inner edge (A110); the inner edge (A110) is provided with a relief groove (A111), and the first driving member (A530) has a push protrusion (A531) that slidably extends out of the outer peripheral surface of the turntable; When the turntable (A300) rotates to the lateral position, the push protrusion (A531) extends into the relief groove (A111), thereby driving the locking pin (A510) to move to the disengaged position; When the turntable (A300) rotates to a non-lateral position, the inner edge abuts against the push protrusion (A531), thereby driving the locking pin (A510) to move to the locking position.

9. The child safety seat (A10) according to claim 1, characterized in that, The child safety seat (A10) further includes a limiting mechanism configured to restrict the swing of the seat portion (A200) within a predetermined swing angle range. The limiting mechanism includes a limiting groove (A240) and a limiting protrusion (A330). The limiting groove (A240) is disposed on one of the bottom of the seat portion (A200) and the top of the turntable (A300), and the limiting protrusion (A330) is disposed on the other of the bottom of the seat portion (A200) and the top of the turntable (A300). The limiting protrusion (A330) is located in the limiting groove (A240). When the seat part (A200) swings to a predetermined swing angle, the side wall of the limiting protrusion (A330) is adapted to contact the side wall of the limiting groove (A240) to limit the further increase of the swing angle of the seat part (A200).

10. The child safety seat (A10) according to claim 3, characterized in that, The first arm (A410) of the support member (A400) is higher than the second arm (A420) of the support member (A400).

11. The child safety seat (A10) according to claim 10, characterized in that: The width of the limiting groove (A240) at the end near the first arm is greater than the width at the other end near the second arm.

12. The child safety seat (A10) according to claim 1, characterized in that: The support member (A400) is slidably connected to the turntable (A300); The child safety seat (A10) also includes: A locking mechanism (A700) has a locked state and an unlocked state. When the locking mechanism (A700) is in the locked state, it prevents the support member (A400) from sliding relative to the turntable (A300). When the locking mechanism (A700) is in the unlocked state, it allows the support member (A400) to slide relative to the turntable (A300). as well as The second operating element (A810) is configured to operate to switch the locking mechanism (A700) from the locked state to the unlocked state.

13. The child safety seat (A10) according to claim 1, characterized in that, The child safety seat (A10) also includes a first locking element (A500a) and a second locking element (A500b), wherein The first locking member (A500a) is configured to prevent the swinging of the seat portion (A200) when the child safety seat (A10) is in forward or rearward mode, and to allow the swinging of the seat portion (A200) when the child safety seat (A10) is in lateral mode. The second locking member (A500b) is configured to prevent the swinging of the seat portion (A200) when the child safety seat (A10) is in the side-facing mode, and to allow the swinging of the seat portion (A200) when the child safety seat (A10) is in the forward-facing or rear-facing mode.

14. A child safety seat (B1000), comprising: Base (B1100); as well as A seat (B1200) is movably mounted to the base (B1100); When the child safety seat (B1000) is in side-facing use, the seat portion (B1200) can move relative to the base (B1100) in a direction away from the adjacent door.

15. The child safety seat (B1000) according to claim 14, characterized in that, The child safety seat (B1000) also includes a locking mechanism, which includes: A locking element for locking the seat portion (B1200) in a position away from the adjacent door; and Release mechanism, used to release the lock on the seat (B1200).

16. The child safety seat (B1000) according to claim 14, characterized in that: The seat (B1200) has a seat (B1210) and a backrest (B1220); The seat portion (B1200) is configured to move from a first position to a second position in the direction of the backrest portion (B1220).

17. The child safety seat (B1000) according to claim 16, characterized in that: The child safety seat (B1000) also includes: A turntable (B1300) is rotatably mounted on the base (B1100); The seat (B1200) is mounted on the base (B1100) via the turntable (B1300); The turntable (B1300) or the base (B1100) is provided with a slide rail, and the seat part (B1200) is configured to move between the first position and the second position via the slide rail when the turntable (B1300) drives the seat part (B1200) to rotate to the side.

18. The child safety seat (B1000) according to claim 16 or 17, characterized in that: The slide rail is disposed on the base (B1100), and the turntable (B1300) is provided with at least two sliding pins that slide in cooperation with the slide rail; During the rotation of the turntable (B1300), the turntable (B1300) can be driven to slide laterally relative to the base (B1100) through the sliding engagement of the at least two sliding pins with the slide rail, thereby driving the seat part (B1200) to move from the first position to the second position.

19. The child safety seat (B1000) according to claim 18, characterized in that: The slide rail includes a first slide groove and a second slide groove, wherein the extension directions of the first slide groove and the second slide groove are perpendicular to each other; The at least two sliding pins include a first sliding pin (B1311) and a second sliding pin (B1312), wherein the first sliding pin (B1311) is configured to slide within the first sliding groove, and the second sliding pin (B1312) is configured to slide within the second sliding groove. When the first sliding pin (B1311) slides along the first groove toward the center of the bearing surface of the base, the turntable drives the second sliding pin (B1312) to slide along the second groove toward the center of the bearing surface of the base, so that the seat part (B1200) moves from the first position to the second position.

20. The child safety seat (B1000) according to claim 18, characterized in that: The slide rail is a cross slide groove (B1150) provided on the base (B1100). The cross slide groove (B1150) includes a front slide groove (B1150a), a right slide groove (B1150b), a rear slide groove (B1150c), and a left slide groove (B1150d) that are connected to each other. The longitudinal slide groove formed by the front slide groove (B1150a) and the rear slide groove (B1150c) is perpendicular to the transverse slide groove formed by the right slide groove (B1150b) and the left slide groove (B1150d). The at least two sliding pins include a first sliding pin (B1311) and a second sliding pin (B1312), the first sliding pin (B1311) and the second sliding pin (B1312) are arranged along the radial direction of the turntable (B1300), and the first sliding pin (B1311) is closer to the front end of the turntable (B1300) than the second sliding pin (B1312); The first sliding pin (B1311) is configured to slide within the longitudinal groove, and the second sliding pin (B1312) is configured to slide within the transverse groove.

21. The child safety seat (B1000) according to claim 17, characterized in that: The slide rail is disposed between the turntable (B1300) and the seat portion (B1200) so that the seat portion can slide relative to the turntable; when the turntable (B1300) rotates to a lateral position relative to the base, the seat portion (B1200) can slide relative to the turntable via the slide rail to move from the first position to the second position; or, The slide rail is located at the bottom of the turntable (B1300); the top of the base (B1100) is provided with a fifth sliding pin (B3210) that slides with the slide rail; when the turntable (B1300) rotates to the side position, the turntable (B1300) can slide relative to the base (B1100) through the sliding engagement of the fifth sliding pin (B3210) and the slide rail, and drive the seat part (B1200) to move from the first position to the second position.

22. The child safety seat (B1000) according to claim 17, characterized in that: The base (B1100) is provided with a front locking hole (B1141), a rear locking hole (B1142), a first lateral locking hole (B1143), and a second lateral locking hole (B1144); The turntable (B1300) is provided with a first locking pin (B1320), which is adapted to selectively engage with any one of the forward locking hole (B1141), the rear locking hole (B1142), the first lateral locking hole (B1143), and the second lateral locking hole (B1144). The distance between the first lateral locking hole (B1143) and the second lateral locking hole (B1144) and the center of the bearing surface of the base (B1100) is different relative to the distance between the first lateral locking hole (B1141) and the second lateral locking hole (B1144) and the center of the bearing surface of the base (B1100).

23. The child safety seat (B1000) according to claim 16, characterized in that The base (B1100) includes a limiting mechanism (B1130), which is configured such that when the seat (B1200) moves between the first position and the second position, the limiting mechanism (B1130) engages with the turntable (B1300) from above with a clearance.

24. The child safety seat (B1000) according to claim 19, characterized in that: The child safety seat (B1000) also includes an anti-misuse mechanism, which includes a blocking element (B1156); The blocking member (B1156) is movable between an extended position and a retracted position. When the blocking member (B1156) is in the extended position, it prevents the first sliding pin (B1311) from sliding along the first groove to prevent the turntable from turning from a lateral position to a forward position. When the blocking member (B1156) is in the retracted position, it allows the turntable to rotate between the lateral position and the forward position.

25. The child safety seat (B1000) according to claim 14, characterized in that: The seat portion (B1200) has a seat portion (B1210) and a backrest portion (B1220). The seat portion (B1200) is configured to move from a first position to a second position away from the adjacent door in the direction of the backrest portion (B1220), and from the first position to a third position close to the door in the direction of the seat portion (B1210); The child safety seat (B1000) also includes a locking mechanism configured to operably lock the seat portion (B1200) in the first position or the second position.

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