Carrying base and infant carrier

Abstract

A carrying base and an infant carrier. The carrying base (100) comprises a base (110), a swivel platform (120), and a rotary sliding mechanism (130). The base (110) is used for being fixed to a vehicle seat. The swivel platform (120) is used for mounting a seating module (200), and is movably arranged on the base (110). The rotary sliding mechanism (130) is arranged between the swivel platform (120) and the base (110). The rotary sliding mechanism (130) comprises a transmission gear (131) and a rack (132). The transmission gear (131) is fixed to the swivel platform (120). The rack (132) is fixed to the base (110). The swivel platform (120) is capable of rotating and sliding relative to the base (110) by means of the engagement of the rack (132) and the transmission gear (131). When the base (110) is mounted on a vehicle seat and the seating module (200) is mounted on the swivel platform (120), the swivel platform (120) can rotate and slide relative to the base (110) to a position close to any side door, such that an infant can be conveniently taken out from or placed in the seating module (200), thereby greatly improving the user experience and satisfaction with the infant carrier (10).

Description

Support base and infant carrier Technical Field

[0001] This application relates to the technical field of infant and toddler vehicles, and in particular to a support base and an infant and toddler vehicle. Background Technology

[0002] Currently, child safety seats have become an indispensable tool for infants and toddlers traveling by car. Existing child safety seats are generally fixed to car seats. When placing an infant or toddler in a child safety seat, factors such as the size of the car door, the height of the car interior, and the child's size often make it inconvenient to lift or place the infant. Furthermore, the head of the caregiver or the infant may easily collide with the car's interior wall, affecting the user experience and satisfaction with the child safety seat. Summary of the Invention

[0003] Therefore, it is necessary to provide a support base and an infant carrier that can be rotated and moved as needed, making it convenient for caregivers to pick up or place infants.

[0004] A support base includes a base, a turntable, and a rotary sliding mechanism. The base is used to fix to a car seat. The turntable is used to install a passenger compartment and is movably disposed on the base. The rotary sliding mechanism is disposed between the turntable and the base. The rotary sliding mechanism includes a transmission gear and a rack. The transmission gear is fixed to the turntable. The rack is fixed to the base. The turntable can rotate and slide relative to the base through the meshing of the rack and the transmission gear.

[0005] The turntable of the aforementioned support base can rotate and slide relative to the base through the meshing of the transmission gears and racks in the rotation sliding mechanism. When the base is installed on a car seat and the turntable is equipped with a passenger compartment, the turntable can rotate and slide relative to the base to a position close to either side of the car door. This makes it convenient to take infants out or place them in the passenger compartment, greatly improving the user experience and satisfaction of infant vehicles.

[0006] In some embodiments, the turntable can be locked relative to the base in at least a first direction, and the rack extends perpendicular to the first direction.

[0007] In some embodiments, the rack extends along a second direction or a third direction, and when the turntable rotates from toward the first direction to toward the second direction or toward the third direction, the rack drives the transmission gear to move toward the second direction or the third direction, so that the passenger cabin moves toward the second direction or the third direction and extends relative to the base.

[0008] In some embodiments, the base has a receiving cavity and a groove communicating with the receiving cavity, and the axis of the transmission gear can move along the groove.

[0009] In some embodiments, the slide is disposed on the side of the base facing the turntable, and the slide extends along a second direction or a third direction, the second direction and the third direction being parallel and opposite.

[0010] In some embodiments, when the turntable is oriented toward the second direction or the third direction relative to the base, the transmission gear drives the turntable to rotate and slide along the groove toward the second direction or the third direction relative to the base.

[0011] In some embodiments, the rack extends in a direction parallel to the groove.

[0012] In some embodiments, the groove is located on one side of the rack in a first direction.

[0013] In some embodiments, the rotary sliding mechanism further includes:

[0014] A connecting protrusion, the first end of which is connected to the turntable, and the second end of which is connected to the shaft of the transmission gear;

[0015] The transmission gear and the rack are both located in the receiving cavity, and the second end of the connecting protrusion, away from the turntable, passes through the groove into the receiving cavity and connects to the shaft of the transmission gear.

[0016] In some embodiments, the turntable can be locked relative to the base in at least a first direction, the slide has a first end and a second end, and when the transmission gear is moved such that the connecting protrusion approaches or is located at the first end, the turntable is oriented relative to the base in a second direction; when the transmission gear is moved such that the connecting protrusion approaches or is located at the second end, the turntable is oriented relative to the base in a third direction; wherein the second direction and the third direction are opposite, and both the second direction and the third direction are perpendicular to the first direction.

[0017] In some embodiments, the support base further includes a locking mechanism that can switch between a locked state and an unlocked state. When the locking mechanism is in the locked state, it locks the turntable relative to the base in at least a first direction. When the locking mechanism is in the unlocked state, the turntable can rotate and slide relative to the base via the rotation sliding mechanism.

[0018] In some embodiments, the locking mechanism includes:

[0019] A locking hook is provided on the turntable and is movable between a locked position and an unlocked position; and

[0020] The locking lever is fixedly mounted on the base.

[0021] When the locking mechanism is in the locked state, the locking hook is in the locked position and is engaged with the locking rod; when the locking mechanism is in the unlocked state, the locking hook is in the unlocked position and is disengaged from the locking rod.

[0022] In some embodiments, the locking mechanism further includes:

[0023] An operating element is operably disposed on the turntable;

[0024] A driving component, one end of which is drivenly connected to the operating component, and the other end of which is connected to the locking hook; and

[0025] The first elastic element abuts against the driving element;

[0026] The operating member can be operated to move the driving member, causing the driving member to move the locking hook toward the unlocking position, and the first elastic member biases the driving member to cause the driving member to move the locking hook toward the locking position.

[0027] In some embodiments, one end of the driving member has a driving post, the operating member has a driving groove, the driving post is inserted into the driving groove and is used to move along the driving groove.

[0028] In some embodiments, the locking hook is pivotally connected to the turntable at a first connection point, and the other end of the drive member is connected to the locking hook at a second connection point. The first connection point and the second connection point do not coincide, and the drive member is used to drive the locking hook to rotate between the locked position and the unlocked position.

[0029] In some embodiments, the base has a receiving cavity and an insertion hole communicating with the receiving cavity. The locking rod is located in the receiving cavity. When the locking hook is in the locked position, the locking hook passes through the insertion hole into the receiving cavity to engage with the locking rod. When the locking hook is in the unlocked position, the locking hook exits the receiving cavity through the insertion hole and abuts against the side of the base facing the turntable.

[0030] In some embodiments, the locking hook includes a first locking hook and a second locking hook spaced apart from the turntable, and the locking rod includes a first locking rod and a second locking rod spaced apart and fixed to the base;

[0031] The driving component includes a first driving component and a second driving component. One end of the first driving component is drivenly connected to the operating component, and the other end of the first driving component is connected to the first locking hook. One end of the second driving component is drivenly connected to the operating component, and the other end of the second driving component is connected to the second locking hook.

[0032] The first elastic member has two ends that abut against the first driving member and the second driving member, respectively;

[0033] The operating member can be operated to move the first driving member and the second driving member, such that the first driving member and the second driving member respectively drive the first locking hook and the second locking hook to move toward the unlocking position, and the first elastic member biases the first driving member and the second driving member to drive the first locking hook and the second locking hook to move toward the locking position.

[0034] In some embodiments, the locking mechanism comprises at least two sets, and at least two sets of the locking mechanism are simultaneously in a locked state or an unlocked state.

[0035] In some embodiments, the operating element includes at least two, and the operating directions of the at least two operating elements form an angle with each other. When any one of the at least two operating elements is operated, it can drive the driving elements of at least two sets of locking mechanisms to move, so that the driving elements of the at least two sets of locking mechanisms drive the corresponding locking hook to move toward the unlocking position.

[0036] In some embodiments, the locking mechanism includes two operating elements, the two operating elements being operated in opposite directions, and / or, the two operating elements are respectively disposed on one side of the turntable in the left-right direction.

[0037] In some embodiments, a shielding mechanism is also included, which is used to selectively shield the slide.

[0038] In some embodiments, the shielding mechanism includes:

[0039] A shielding member is pivotally connected to the base and is rotatable between a shielded position and an open position;

[0040] The second elastic element abuts against the base and the shielding element;

[0041] The second elastic member biases the blocking member toward the blocking position.

[0042] In some embodiments, the rotary sliding mechanism further includes: a connecting protrusion, one end of which is connected to the turntable, and a second end of which is connected to the shaft of the transmission gear;

[0043] When the turntable rotates relative to the base to face a first direction, the blocking member is in a blocking position; and / or, when the turntable rotates relative to the base to face a second or third direction, the connecting protrusion pushes against the blocking member to cause the blocking member to rotate to the open position.

[0044] In some embodiments, one end of the shield is pivotally connected to the base, and the other end of the shield is provided with a pushing slope. The connecting protrusion pushes against the pushing slope to rotate the shield toward the open position.

[0045] In some embodiments, the slide has a first segment and a second segment that are in communication with each other, the first segment extending in a second direction and the second segment extending in a third direction, the blocking member including a first blocking member and a second blocking member, the first blocking member selectively blocking at least a portion of the first segment and the second blocking member selectively blocking at least a portion of the second segment.

[0046] In some embodiments, with the connection point between the first segment and the second segment as the center point, the first blocking member and the second blocking member are respectively located on both sides of the center point. When the turntable rotates to face the first direction, the rotation axis of the turntable is located at the center point, and both the first blocking member and the second blocking member are located at the blocking position.

[0047] In some embodiments, when the turntable rotates relative to the base to face a second direction, the first blocking member is in an open position and the second blocking member is in a blocking position; when the turntable rotates relative to the base to face a third direction, the second blocking member is in an open position and the first blocking member is in a blocking position.

[0048] In some embodiments, with the connection point of the first segment and the second segment as the center point, the first shielding member and the second shielding member are respectively located on both sides of the center point. The first shielding member and the second shielding member each have a first pushing slope and a second pushing slope, and the first pushing slope and the second pushing slope are respectively located at one end of the first shielding member and the second shielding member closer to the center point.

[0049] In some embodiments, the support base further includes:

[0050] A power transmission mechanism is movably mounted on the turntable or the base and is used for drive connection with the transmission gear;

[0051] The power transmission mechanism is used to drive the transmission gear to rotate.

[0052] In some embodiments, the power transmission mechanism includes:

[0053] An electrically driven device is movably mounted on the turntable or the base; and

[0054] The transmission module is connected to the output end of the electric drive device and is also connected to the transmission gear drive.

[0055] In some embodiments, the power transmission mechanism includes:

[0056] The drive gear is connected to the output terminal of the electric drive device; and

[0057] The driven gear is connected to the transmission gear and meshes with the driving gear.

[0058] In some embodiments, the driven gear is connected to the central shaft of the transmission gear.

[0059] In some embodiments, the power transmission mechanism further includes:

[0060] The mounting bracket is slidably mounted on the base;

[0061] The electric drive device is mounted on the mounting bracket, the transmission module is located on the side of the mounting bracket facing the transmission gear, and the central shaft of the transmission gear is connected to the mounting bracket.

[0062] In some embodiments, the support base further includes:

[0063] A fastener is provided on the base and forms a strip groove between it and the base;

[0064] The strip groove extends approximately along the length of the rack, and the mounting bracket has a sliding flange that is inserted into the strip groove and can slide along the strip groove.

[0065] In some embodiments, the support base further includes:

[0066] The operating component is electrically connected to the electrically driven device;

[0067] The operating component is used to activate the electric drive device to rotate when operated.

[0068] In some embodiments, the electric drive device is a bidirectional motor, and the operating component includes a first operating button and a second operating button. When the first operating button is operated, the electric drive device drives the turntable to rotate relative to the base in a first rotation direction; when the second operating button is operated, the electric drive device drives the turntable to rotate relative to the base in a second rotation direction, wherein the first rotation direction and the second rotation direction are opposite.

[0069] In some embodiments, the support base further includes a reinforcing hook disposed on the base, wherein when the turntable rotates relative to the base to face a first direction, the reinforcing hook engages with the edge of the turntable.

[0070] An infant carrier includes a seating compartment and a support base as described in any of the foregoing embodiments, the seating compartment being mounted on the turntable. Attached Figure Description

[0071] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0072] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0073] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0074] Figure 1 is a schematic diagram of the structure of an infant carrier according to an embodiment of this application, wherein the turntable of the infant carrier in the figure faces a first direction;

[0075] Figure 2 is a schematic diagram of the structure of an infant carrier according to an embodiment of this application, wherein the turntable of the infant carrier in the figure faces the second direction;

[0076] Figure 3 is a structural schematic diagram of an infant carrier according to an embodiment of this application, wherein the turntable of the infant carrier in the figure faces a third direction;

[0077] Figure 4 is a schematic diagram of the supporting base in the infant carrier shown in Figure 1;

[0078] Figure 5 is a schematic diagram of the supporting base in the infant carrier shown in Figure 2;

[0079] Figure 6 is a schematic diagram of the supporting base in the infant carrier shown in Figure 3;

[0080] Figure 7 is an enlarged view of the AA sectional view of Figure 1 and the part circled in dashed circles;

[0081] Figure 8 is a top view of the infant carrier shown in Figure 1 without the bottom cover;

[0082] Figure 9 is a top view of the infant carrier shown in Figure 2 without the bottom cover;

[0083] Figure 10 is a top view of the infant carrier shown in Figure 3 without the bottom cover;

[0084] Figure 11 is a top view of the bearing base shown in Figure 4 after the bottom cover is omitted;

[0085] Figure 12 is a schematic diagram of the structure of the bearing base shown in Figure 4 after omitting the first cover, and an enlarged view of the part circled in dashed circles.

[0086] Figure 13 is a schematic diagram of the drive component in Figure 12;

[0087] Figure 14 is a side view of Figure 12;

[0088] Figure 15 is an enlarged view of the BB cross-sectional view in Figure 4 and the part circled in dashed circles. At this time, the locking mechanism is in the locked state.

[0089] Figure 16 is another BB cross-sectional view of Figure 4 and an enlarged view of the part circled in dashed circles. At this time, the locking mechanism is in the unlocked state.

[0090] Figure 17 is a top view of the base in the bearing base shown in Figure 4;

[0091] Figure 18 is a bottom view of the turntable in the bearing base shown in Figure 4;

[0092] Figure 19 is a bottom view of the base of the bearing base shown in Figure 4 after the bottom cover is removed, and an enlarged view of the part circled in dashed circles.

[0093] Figure 20 is a top view of the bearing base shown in Figure 4 and a top view of the bearing base without the top cover;

[0094] Figure 21 is a top view of the bearing base shown in Figure 5 and a top view of the bearing base without the top cover;

[0095] Figure 22 is a top view of the bearing base shown in Figure 6 and a top view of the bearing base without the top cover.

[0096] Figure 23 is a structural schematic diagram of the infant carrier according to the second embodiment of this application, wherein the turntable of the infant carrier shown in the figure faces the first direction;

[0097] Figure 24 is a structural schematic diagram of the infant carrier according to the second embodiment of this application, wherein the turntable of the infant carrier shown in the figure faces the second direction;

[0098] Figure 25 is a structural schematic diagram of the infant carrier according to the second embodiment of this application, wherein the turntable of the infant carrier shown in the figure faces a third direction;

[0099] Figure 26 is a schematic diagram of the supporting base in the infant carrier shown in Figure 23;

[0100] Figure 27 is a schematic diagram of the structure of the bearing base shown in Figure 24 after the bottom cover is omitted;

[0101] Figure 28 is a schematic diagram of the structure of the bearing base shown in Figure 27 after omitting the bottom cover and further omitting the installation bracket;

[0102] Figure 29 is an exploded view of the transmission gears and power transmission mechanism;

[0103] Figure 30 is a CC sectional view of Figure 26;

[0104] Figure 31 is a schematic diagram of the structure of the bearing base shown in Figure 26 after omitting the turntable and top cover;

[0105] Figure 32 is a CC cross-sectional view of Figure 26 in another example.

[0106] Explanation of reference numerals in the attached drawings: 10. Infant carrier; 100. Support base; 110. Base; 111. Receiving cavity; 112. Front; 113. Rear; 114. Supporting surface; 1141. Through hole; 1142. Slide groove; 1142a. First end; 1142b. Second end; 1142c. First section; 1142d. Second section; 115. Top cover; 116. Bottom cover; 117. Seating compartment release mechanism; 118. Locking hook; 1192. Fixing seat; 1193. Through hole; 120. Turntable; 121. First cover; 122. Second cover; 1221. Through hole; 123. Mounting cavity; 124. Mounting assembly; 1241. Mounting seat; 1242. Mounting rod; 1242a. Sliding groove; 125. Support seat; 126. Opening; 130. Rotary sliding mechanism; 131. Transmission gear; 1311. Notch; 1312. Central shaft; 1312a. Elastic finger; 1313. Protrusion; 1314. Connector; 132. Rack; 133. Connecting protrusion; 134. Power transmission mechanism; 1340. Accommodating space; 1341. Electrical drive device; 1342. Transmission module; 1342a. Driving gear; 1342b. Driven gear; 1342c. First through hole; 1342d. Second through hole; 1344. Mounting bracket; 1344a. Mounting part; 1344b. Connecting part; 1344c. First side; 1344d. Second side; 1344e. First mounting hole; 1344f. Second mounting hole; 1344g. Sliding flange; 135. Operating component; 1351. First operating button; 1352. Second operating button; 140. Locking mechanism; 141. Locking hook; 141A. First locking hook; 141B. Second locking hook; 142. Locking lever; 142A. First locking lever; 142B. Second locking lever; 143. Operating component; 1431. Operating handle; 1432. Operating body; 1432a. Drive groove; 144. Drive component; 144A. First drive component; 144B. Second drive component; 1441. Drive column; 1442. Drive body; 1443. Sleeve column; 1444. Sliding column; 145. First elastic element; 150. Shielding mechanism; 151. Shielding component; 151a. First shielding component; 151b. Second shielding component; 1511. Pushing ramp; 1511a. First pushing ramp, 1511b. Second pushing ramp; 152. Second elastic component; 101. Pivot column; 170. Bracket; 200. Passenger compartment; 160. Reinforcing hook; 161. Hook portion; 190. Fastener; 180. Fixing component; 181. Strip groove; 182. Fixing body; 183. Fixing part; M. First connection point; N. Second connection point; Q. Center point; O. Rotation axis. Detailed Implementation

[0107] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this application. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this application.

[0108] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0109] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0110] First Embodiment

[0111] As shown in Figure 1, the first embodiment of this application proposes an infant carrier 10, such as a child safety seat. The infant carrier 10 includes a seating compartment 200 for carrying an infant and a support base 100 for mounting the seating compartment 200 onto a car seat. The seating compartment 200 can be an infant carrier or a child seat; this embodiment uses an infant carrier as an example.

[0112] As shown in Figure 1, during use, the infant carrier 10 typically consists of a support base 100 fixedly installed inside the vehicle, while the seating compartment 200 is mounted above the support base 100 and can rotate relative to it. The seating compartment 200 can rotate to a first direction D1 and be fixed facing that direction, allowing the infant to sit in the seating compartment 200 facing the first direction D1 while the vehicle is in motion. In this embodiment, the seating compartment 200 is an infant carrier, typically used by infants weighing no more than 35 pounds or taller than 87 cm. Therefore, the first direction D1 is opposite to the vehicle's direction of travel (i.e., facing rearward) to meet relevant safety requirements. In other embodiments not shown, for example, when the seating compartment 200 is a child seat, if the passenger is an older child, the seating compartment 200 can be rotated and fixed facing either the first direction D1 or the opposite direction. As shown in Figures 2 and 3, when it is necessary to remove an infant from or place an infant inside the seating compartment 200, the seating compartment 200 can be moved toward the second direction D2 (as shown in Figure 2) or the third direction D3 (as shown in Figure 3), and offset toward the side of the base 110. In some embodiments, the second direction D2 and the third direction D3 correspond to the side of the right-hand door and the left-hand door of the vehicle, respectively. This allows the seating compartment 200 to be closer to one side of the door or at least partially extended from one side of the door, facilitating the caregiver's operation of picking up or placing the infant from either side of the door.

[0113] Specifically, as shown in Figures 4 to 6, the support base 100 includes a base 110 and a turntable 120 (or a rotating base). The base 110 is used to fix it to a car seat (not shown). In embodiments not shown, the base 110 can be fixed to the car seat, for example, via ISOFIX (not shown) or connecting webbing (not shown). The base 110 may also be provided with support feet (not shown) for auxiliary support of the support base 100 and the passenger compartment 200. The passenger compartment 200 is mounted on the turntable 120 in a detachable or non-detachable manner. In this embodiment, the passenger compartment 200 is detachably mounted on the turntable 120. The turntable 120 is movably mounted on the base 110 and can drive the passenger compartment 200 to rotate and move relative to the base 110. In this embodiment, the turntable 120 is provided with engaging hooks 118, and the bottom of the passenger compartment 200 is provided with engaging rods (not shown). The engaging hooks 118 and engaging rods can be selectively engaged to achieve detachable installation of the passenger compartment 200 on the base 110. In this embodiment, there are four engaging hooks 118 symmetrically arranged along the front and rear axes of the turntable 120, and there are also four engaging rods, whose positions correspond to the engaging hooks 118. Of course, in other embodiments, the number and position of the engaging hooks 118 and engaging rods can be adjusted as needed. The base 110 is provided with a passenger compartment release mechanism 117, which is drivenly connected to the engaging hooks 118 through a traction member (not shown) and a corresponding linkage mechanism (not shown). The passenger compartment release mechanism 117 can be operated to drive the engaging hooks 118 to disengage from the corresponding engaging rods, thereby detaching the passenger compartment 200 from the base 110. As shown in Figures 4 to 6, in this embodiment, the base 110 has a shell structure, including a top cover 115 and a bottom cover 116 that interlock. The interior of the top cover 115 and the bottom cover 116 forms a hollow receiving cavity 111 (as shown in Figure 7). The base 110 has an upwardly curved rear portion 113 and a slightly downwardly inclined front portion 112. When the support base 100 is installed in a car, its front portion 112 faces the front of the car, and its rear portion 113 faces the rear of the car (e.g., near the back of the car seat), that is, the front portion 112 is located in front of the rear portion 113. The side of the base 110 facing the turntable 120 has a generally circular support surface 114, which is located between the front portion 112 and the rear portion 113. The support surface 114 is provided with a groove 1142 communicating with the receiving cavity 111 and an insertion hole 1141. A groove 1142 is provided, extending approximately along the left-right direction of the base 110 and passing through the geometric center of the bearing surface 114. The groove 1142 serves as a moving track for the connecting protrusion 133 (described in detail later). In this embodiment, the bearing surface 114 is approximately circular, so the groove 1142 passes through the center of the bearing surface 114. In other embodiments, if the bearing surface 114 is, for example, square, the groove 1142 passes through the intersection of the two diagonals of the bearing surface 114.In some other embodiments, the bearing surface 114 may also be of other shapes, and the groove 1142 may extend in the left-right direction.

[0114] Of course, in other embodiments, the slide 1142 may not pass through the geometric center of the bearing surface 114, that is, the slide 1142 may be offset from the geometric center of the bearing surface 114 by a certain distance, as long as it does not affect the rotation and movement of the turntable 120 relative to the base 110.

[0115] It is worth noting that since the turntable 120 rotates relative to the base 110, the front-back and left-right directions of the turntable 120 described herein are not always consistent with the front-back and left-right directions of the base 110. Specifically, since the base 110 is fixed relative to the car seat, the front-back direction of the base 110 corresponds to the front-back direction of the car's movement, i.e., the front and rear of the car, respectively; the left-right direction of the base 110 corresponds to the third direction D3 and the second direction D2 mentioned above, respectively, and the left and right directions of the base 110 correspond to the left side door and the rear side door of the car, respectively. The front-back and left-right directions of the turntable 120 are referenced to the passenger compartment 200 mounted on the turntable 120. As shown in Figures 1 and 4, the turntable 120 has four spaced-apart locking hooks 118. The passenger cabin 200 is detachably engaged with these four locking hooks 118. Two locking hooks 118 engage with the front side of the passenger cabin 200 (i.e., the side away from the backrest of the passenger cabin 200), and the other two locking hooks 118 engage with the rear side of the passenger cabin 200 (i.e., the side closer to the backrest of the passenger cabin 200). As shown in Figure 4, the turntable 120 also has an upwardly protruding support seat 125 near the other two locking hooks 118 to support the backrest of the passenger cabin 200. It can be understood that the front, back, left, and right directions of the turntable 120 correspond to the front, back, left, and right directions of the child sitting in the passenger cabin 200, respectively. For example, when the turntable 120 rotates relative to the base 110 to face the first direction D1, the second direction D2, or the third direction D3, it is equivalent to the front side of the passenger cabin 200 rotating relative to the base 110 to face the first direction D1, the second direction D2, or the third direction D3. Figures 4 to 6 use arrows F, B, L, and R to schematically indicate the "front," "rear," "left," and "right" directions of the turntable 120, respectively. It is important to note that these directional terms are used only to make the description of the embodiments of this application clearer and are not intended to unduly limit the scope of protection of this application.

[0116] Please refer to Figures 17 and 18 together. There are four through holes 1141, symmetrically arranged relative to the slide groove 1142. All four through holes 1141 extend along the front-rear direction of the base 110. Two through holes 1141 are spaced apart on the front side of the slide groove 1142 (i.e., one side along the first direction D1), and the other two through holes 1141 are spaced apart on the rear side of the slide groove 1142 (i.e., the other side along the opposite direction of the first direction D1). The locking hook 141 of the locking mechanism 140 (described in detail later) can extend into the receiving cavity 111 through the through holes 1141. In other embodiments, the arrangement direction of the slide groove 1142 and the through holes 1141 can also be changed according to the actual direction adjustment needs, and the number of through holes 1141 can also be adjusted as needed, for example, more than four or less than four. This application does not impose any limitations. In some embodiments, the base 110 can be a structure axially symmetrical along the center line of the first direction D1. The supporting surface 114 can be circular. When the turntable 120 faces the first direction D1 relative to the base 110, the rotation axis O of the turntable 120 relative to the base 110 (hereinafter referred to as the rotation axis O) can coincide with the geometric center of the supporting surface 114, that is, the groove 1142 passes through the geometric center of the supporting surface 114 in the left-right direction. The rotation axis O is located at the geometric center of the turntable 120. In this embodiment, the turntable 120 is approximately disc-shaped, and the rotation axis O is located at the center of the turntable 120. Of course, in other embodiments, the rotation axis O may not be located at the geometric center of the turntable 120, that is, the rotation axis O can be offset from the geometric center of the turntable 120 by a certain distance, as long as it does not affect the rotation and movement of the turntable 120 relative to the base 110.

[0117] Please refer to Figure 7. In this embodiment, the turntable 120 also has a shell structure. The turntable 120 includes a first cover 121 and a second cover 122 that are interlocked with each other. The first cover 121 is located above the second cover 122, and a mounting cavity 123 is formed between the first cover 121 and the second cover 122.

[0118] Further, as shown in Figures 8 to 10, the support base 100 also includes a rotational sliding mechanism 130 and a locking mechanism 140 disposed between the base 110 and the turntable 120. The locking mechanism 140 is switchable between a locked state and an unlocked state. When the locking mechanism 140 is in the locked state, it locks the turntable 120 relative to the base 110 at least in a first direction D1. When the locking mechanism 140 is in the unlocked state, the turntable 120 can rotate and slide relative to the base 110 via the rotational sliding mechanism 130.

[0119] Specifically, as shown in Figures 7 and 8, the rotary sliding mechanism 130 includes a transmission gear 131, a rack 132, and a connecting protrusion 133. The transmission gear 131 is fixed to the turntable 120, and the rack 132 is fixed to the base 110 or integrally formed with the base 110, and the rack 132 meshes with the transmission gear 131. When the transmission gear 131 moves relative to the base 110, the transmission gear 131 rotates and moves along the rack 132. In this embodiment, the second cover 122 has a connecting protrusion 133 protruding on the side facing the base 110. In this embodiment, the connecting protrusion 133 is located approximately at the center of the second cover 122. The end of the connecting protrusion 133 away from the second cover 122 extends into the receiving cavity 111 of the base 110 through a sliding groove 1142. The transmission gear 131 is located in the receiving cavity 111, and its axis is fixed to the connecting protrusion 133. It is understandable that since the turntable 120 is driven to rotate and move by the transmission gear 131, the rotation axis O of the turntable 120 is located at the connection point between the turntable 120 and the transmission gear 131. In this embodiment, the turntable 120 is connected to the axis of the transmission gear 131 via a connecting protrusion 133. Therefore, the rotation axis O of the turntable 120 coincides with the axis of the transmission gear 131, both located at the connection point between the turntable 120 and the transmission gear 131, i.e., the location of the connecting protrusion 133. In this embodiment, the connection point between the turntable 120 and the transmission gear 131 is located at the geometric center of the turntable 120. Therefore, the rotation axis O of the turntable 120 and the axis of the transmission gear 131 are also located at the geometric center of the turntable 120.

[0120] Thus, the rotation of the turntable 120 drives the transmission gear 131 to rotate within the receiving cavity 111 via the connecting protrusion 133. The rack 132 is positioned along the left-right direction of the base 110, meaning its orientation is approximately parallel to the extension direction of the slide groove 1142; both the rack 132 and the slide groove 1142 extend along the second direction D2 or the third direction D3. When the turntable 120 rotates from the first direction D1 towards the second direction D2 or the third direction D3, the rack 132 drives the transmission gear 131 to move towards the second direction D2 or the third direction D3. The transmission gear 131 then rotates the turntable 120 and slides along the slide groove 1142 towards the second direction D2 or the third direction D3, causing the passenger compartment 200 to move towards the second direction D2 or the third direction D3 and extend relative to the base 110. In this embodiment, the rack 132 is positioned on the front side of the slide groove 1142 (i.e., on the side opposite to the first direction D1). This arrangement allows the transmission gear 131 to rotate, driving the turntable 120 forward in either the left or right direction of the base 110 via the rack 132. The turntable 120 extends or approaches the door from one side, meaning the seat of the turntable 120 or the passenger compartment 200 extends or approaches the door, facilitating the placement or removal of the infant facing the caregiver. Conversely, if the transmission gear 131 and rack 132 are reversed, with the rack 132 located behind the slide groove 1142 (i.e., on the side along the first direction D1), the rack 132 will drive the transmission gear 131 backward instead of forward during rotation. In this case, the backrest of the turntable 120 or the passenger compartment 200 extends or approaches the door, making it inconvenient to place or remove the infant.

[0121] Thus, when the turntable 120 is rotated, it drives the transmission gear 131 to rotate. Since the transmission gear 131 meshes with the rack 132, during the rotation of the transmission gear 131, it exerts a force on the rack 132 in the left-right direction along the base 110. Because the rack 132 is fixed to the base 110 and does not move, it exerts a force in the opposite direction on the transmission gear 131, thereby pushing the transmission gear 131 to move in the left-right direction along the base 110. In this way, the turntable 120 can rotate while moving in the left-right direction along the base 110, allowing the seating compartment 200 to be moved closer to one side door when picking up or placing an infant, making operation more convenient.

[0122] Further, as shown in Figures 8 to 10, the transmission gear 131 has a notch 1311. As shown in Figure 8, when the turntable 120 (or the passenger compartment 200) is in the first direction D1 relative to the base 110, the notch 1311 faces the first direction D1, and the rack 132 is located on the side of the transmission gear 131 in the opposite direction of the first direction D1, that is, the rack 132 and the notch 1311 are located on both sides of the transmission gear 131 in the front-rear direction of the base 110, respectively. Optionally, when the turntable 120 (or the passenger compartment 200) is in the first direction D1 relative to the base 110, the rack 132 meshes with the midpoint of the transmission gear 131 in the circumferential direction. As shown in Figures 9 and 10, when the turntable 120 (or the passenger compartment 200) is in the second direction D2 or the third direction D3 relative to the base 110, the notch 1311 faces the second direction D2 or the third direction D3. In this way, the passenger compartment 200 (such as an infant carrier) can be prevented from rotating to the opposite direction (such as forward) of the first direction D1.

[0123] In this embodiment, the transmission gear 131 can be configured as a three-quarter gear, and the notch 1311 is a fan-shaped notch with a central angle of 90 degrees. Of course, in other embodiments, the transmission gear 131 can be configured as, for example, a half-gear, a third-gear, or a gear larger than three-quarters, depending on the steering angle requirements of the turntable 120. The notch 1311 corresponds to a semi-circular notch, a fan-shaped notch with a central angle of 120 degrees, or a fan-shaped notch with a central angle less than 90 degrees. This application does not impose any limitations on this. It is understood that, in embodiments not shown, when the passenger compartment 200 is a child seat, the turntable 120 can also be configured as a full-circle gear.

[0124] As shown in Figures 8 to 10, the slide 1142 has a first end 1142a and a second end 1142b. When the transmission gear 131 moves to the center point Q of the first end 1142a and the second end 1142b, it is the position of the geometric center of the bearing surface 114 (e.g., the center of the circle of the bearing surface 114). The turntable 120 faces the first direction D1 relative to the base 110. When the transmission gear 131 moves to the point that the connecting protrusion 133 is close to the first end 1142a, the edge of the transmission gear 131 abuts against the right side cavity wall of the receiving cavity 111. The turntable 120 faces the second direction D2 relative to the base 110. When the transmission gear 131 moves to the point that the connecting protrusion 133 is close to the second end 1142b, the edge of the transmission gear 131 abuts against the left side cavity wall of the receiving cavity 111. The turntable 120 faces the third direction D3 relative to the base 110. In this embodiment, the first end 1142a is located on the right side of the base 110, and the second end 1142b is located on the left side of the base 110. Thus, the groove 1142 can limit the travel of the connecting protrusion 133 (or the transmission gear 131), thereby limiting the rotation direction and travel distance of the passenger compartment 200 located on the turntable 120. For example, in this embodiment, the passenger compartment 200 can only rotate from the direction towards the second direction D2 to the direction towards the first direction D1 and then to the direction towards the third direction D3, or rotate in the opposite direction, but cannot rotate to the opposite direction towards the first direction D1. This prevents the infant carrier from being positioned forward, reducing safety hazards. Of course, in other embodiments, such as when the passenger compartment 200 is a child seat, the angle of the transmission gear 131, the position of the rack 132, and the size of the teeth can be adjusted to allow the passenger compartment 200 to be positioned forward, or both forward and rearward.

[0125] In another embodiment not shown, the first end 1142a and the second end 1142b can also be set as the endpoints of the active stroke of the connecting protrusion 133. In this case, when the transmission gear 131 moves to the point where the connecting protrusion 133 is located at the first end 1142a, the turntable 120 faces the second direction D2 relative to the base 110; when the transmission gear 131 moves to the point where the connecting protrusion 133 is located at the second end 1142b, the turntable 120 faces the third direction D3 relative to the base 110.

[0126] Specifically, as shown in Figures 11 to 13, the locking mechanism 140 includes a locking hook 141, a locking rod 142, an operating member 143, a driving member 144, and a first elastic member 145. In this embodiment, the locking hook 141, the operating member 143, the driving member 144, and the first elastic member 145 are all disposed within the mounting cavity 123 of the turntable 120, and the locking rod 142 is disposed within the receiving cavity 111 of the base 110. The locking hook 141 is movable between a locked position and an unlocked position. When the locking mechanism 140 is in the locked state, the locking hook 141 is in the locked position and is engaged with the locking rod 142. When the locking mechanism 140 is in the unlocked state, the locking hook 141 is in the unlocked position and is disengaged from the locking rod 142.

[0127] Further, as shown in Figures 12 and 13, a mounting assembly 124 is provided inside the mounting cavity 123, and the mounting assembly 124 is fixed to the second cover 122. In this embodiment, there are two sets of mounting assemblies 124, which are arranged at intervals. Taking one set of mounting assemblies 124 as an example, the mounting assembly 124 includes two mounting seats 1241 protruding from the second cover 122 and a mounting rod 1242 fixedly connected between the two mounting seats 1241. There are four locking hooks 141, which are pivotally connected to the four mounting seats 1241 respectively. The second cover 122 is provided with four through holes 1221 corresponding to the positions of the four locking hooks 141, so that the four locking hooks 141 can pass through the four through holes 1221 and exit the mounting cavity 123 respectively.

[0128] Specifically, as shown in Figures 12 and 13, there are two operating components 143, which are operably disposed on the side of the second cover 122 facing the mounting cavity 123. The following description uses one of the operating components 143 as an example. The operating component 143 includes an operating body 1432 that is generally rectangular in shape and an operating handle 1431 protruding from one end of the operating body 1432. When the turntable 120 faces the first direction D1, the operating body 1432 is positioned along the left-right direction of the base 110, and the operating body 1432 generally passes through the rotation axis O of the turntable 120 (which is the geometric center of the turntable 120 in this embodiment). The operating handle 1431 is located at the end of the operating body 1432 away from the rotation axis O. The operating body 1432 is provided with drive grooves 1432a. In this embodiment, there are four drive grooves 1432a, all of which extend approximately along the radial direction of the turntable 120. Two drive slots 1432a are located at the end of the operating member 143 away from the operating handle 1431, and the other two drive slots 1432a are located approximately in the middle of the operating body 1432. In this embodiment, the two operating members 143 are symmetrically arranged with respect to the rotation axis O of the turntable 120, and the driving slots 1432 of the operating bodies of the two operating members 143 partially overlap.

[0129] Further, as shown in Figures 12 and 13, there are four driving components 144, and their orientation is perpendicular to the orientation of the operating components 143. That is, the operating components 143 are arranged along the left-right direction of the turntable 120, and the driving components 144 are arranged along the front-back direction of the turntable 120. Two of the driving components 144 are located on one side of the rotation axis O of the turntable 120 and are symmetrically arranged with respect to the center line of any operating component 143; the other two driving components 144 are located on the other side of the rotation axis O of the turntable 120 and are symmetrically arranged with respect to the center line of any operating component 143. The structure and connection relationship of two of the driving components 144 are described in detail below as an example:

[0130] Referring to Figures 12 and 13, the two driving members 144 can be referred to as the first driving member 144A and the second driving member 144B, respectively. The two locking hooks 141 pivotally connected to the same mounting assembly 124 can be referred to as the first locking hook 141A and the second locking hook 141B, respectively. One end of the first driving member 144A is drivenly connected to the operating member 143, and the other end is fixedly connected to the first locking hook 141A. One end of the second driving member 144B is drivenly connected to the operating member 143, and the other end is rotatably connected to the second locking hook 141B. A first elastic member 145 abuts between the first driving member 144A and the second driving member 144B. In this embodiment, the first elastic member 145 is a spring.

[0131] The first driving member 144A and the second driving member 144B have the same structure. The structure of the first driving member 144A is described in detail below using it as an example: As shown in Figures 12 and 13, the first driving member 144A includes a generally elongated driving body 1442, a sleeve post 1443 fixed to the driving body 1442, and a driving post 1441. The sleeve post 1443 is located at one end of the driving body 1442, and the driving post 1441 is located on the side of the driving body 1442 facing the second cover 122. The end of the driving body 1442 away from the sleeve post 1443 is used to rotatably connect with the first locking hook 141A at the second connection point N. The first locking hook 141A is pivotally connected to the mounting base 1241 at the first connection point M. The first connection point M and the second connection point N do not coincide. Thus, when the first driving member 144A moves, it can drive the first locking hook 141A to rotate around the first connection point M, thereby switching between the locked and unlocked positions. The two ends of the first elastic member 145 are respectively sleeved on the sleeve posts 1443 of the first driving member 144A and the second driving member 144B, and abut against the first driving member 144A and the second driving member 144B. The sleeve posts 1443 prevent the first elastic member 145 from shifting during biasing. The first elastic member 145 can bias the first driving member 144A and the second driving member 144B so that the first driving member 144A and the second driving member 144B drive the first locking hook 141A and the second locking hook 141B to move to the locked position. The driving post 1441 is inserted into the driving groove 1432a of the operating member 143 to realize the driving connection between the first driving member 144A and the operating member 143. The operating member 143 can be operated to drive the first driving member 144A and the second driving member 144B to move. For example, as shown in FIG12, the operating member 143 can drive the first driving member 144A and the second driving member 144B to gradually move closer together through the driving groove 1432a, so that the first driving member 144A and the second driving member 144B drive the first locking hook 141A and the second locking hook 141B to move towards the unlocking position.

[0132] Further, referring to Figure 14, the mounting rod 1242 is also provided with at least two sliding grooves 1242a, and at least one sliding post 1444 is provided on the side of the first driving member 144A and the second driving member 144B facing the mounting rod 1242. The sliding post 1444 of the first driving member 144A and the sliding post 1444 of the second driving member 144B are respectively inserted into the at least two sliding grooves 1242a, thereby realizing the sliding of the first driving member 144A and the second driving member 144B relative to the mounting assembly 124 (i.e. relative to the turntable 120). At the same time, the length of the sliding groove 1242a can limit the sliding stroke of the first driving member 144A and the second driving member 144B. In this embodiment, the mounting rod 1242 is provided with four sliding grooves 1242a, and two sliding posts 1444 are respectively provided on the first driving member 144A and the second driving member 144B. Of course, in other embodiments, the mounting rod 1242 may be provided with more or fewer than four sliding grooves 1242a.

[0133] Referring to Figure 11, there are two locking rods 142, spaced apart, within the receiving cavity 111 of the base 110, referred to here as the first locking rod 142A and the second locking rod 142B. Both the first locking rod 142A and the second locking rod 142B extend along the left-right direction of the base 110, and each is respectively positioned corresponding to one of the two insertion holes 1141. Specifically, the supporting base 100 also includes two supports 170, which are spaced apart within the receiving cavity 111 and fixedly connected to the base 110. The first locking rod 142A and the second locking rod 142B are respectively fixed to the two supports 170.

[0134] Please refer to Figures 7 and 11. When the turntable 120 rotates relative to the base 110 to face the first direction D1, the four through holes of the turntable 120 correspond exactly to the four through holes 1141 of the base 110. At this time, if the locking mechanism 140 is in the locked state, the two first locking hooks 141A pass through two of the through holes 1221 to exit the mounting cavity 123 and pass through two of the through holes 1141 to enter the receiving cavity 111 and engage with the first locking rod 142A, that is, both first locking hooks 141A are in the locked position; the two second locking hooks 141B pass through the other two through holes 1221 to exit the mounting cavity 123 and pass through the other two through holes 1141 to enter the receiving cavity 111 and engage with the second locking rod 142B, that is, both second locking hooks 141B are in the locked position.

[0135] The working principle of the locking mechanism 140 is explained below using the first locking hook 141A, the second locking hook 141B, the operating member 143, the first driving member 144A, the second driving member 144B, and the first elastic member 145 located on one side of the front-back center line of the turntable 120 (i.e., a straight line passing through the rotation axis O of the turntable 120 along the front-back direction center line). For ease of explanation, the first locking hook 141A, the second locking hook 141B, the operating member 143, the first driving member 144A, the second driving member 144B, and the first elastic member 145 located on one side of the front-back center line of the turntable 120 are defined as a set of locking mechanisms 140. That is, the bearing base 100 in this embodiment includes two sets of locking mechanisms 140. These two sets of locking mechanisms 140 are symmetrically arranged along the front-back center line of the turntable 120 and are offset from the rotation axis O.

[0136] As mentioned above, as shown in Figure 15, when the turntable 120 rotates relative to the base 110 to face the first direction D1, if the locking mechanism 140 is in the locked state, the first locking hook 141A and the second locking hook 141B respectively pass through the corresponding two through holes 1221 out of the mounting cavity 123, and pass through the corresponding two through holes 1141 into the receiving cavity 111 to engage with the first locking rod 142A and the second locking rod 142B. That is, both the first locking hook 141A and the second locking hook 141B are in the locked position, and the first elastic member 145 pushes against the first driving member 144A and the second driving member 144B, so that both the first locking hook 141A and the second locking hook 141B remain in the locked position. In this way, the turntable 120 and the passenger compartment 200 are fixed relative to the base 110. When it is necessary to take an infant out or place them in the passenger compartment 200, the operating member 143 near the door can be pulled outward, that is, the operating member 143 on either side can be pulled in the left-right direction along the turntable 120 in Figure 12. The operating member 143 then drives the first driving member 144A and the second driving member 144B to move towards each other through the cooperation of the drive groove 1432a and the drive column 1441. That is, the first driving member 144A and the second driving member 144B move towards each other in a direction away from their respective mounting seats 1241, and the first elastic member 145 is compressed. Simultaneously, the first driving member 144A and the second driving member 144B respectively drive the first locking hook 141A and the second locking hook 141B to rotate from the locked position to the unlocked position. That is, the first locking hook 141A and the second locking hook 141B disengage from the first locking rod 142A and the second locking rod 142B respectively, and rotate out of the receiving cavity 111 through two of the insertion holes 1141. At this time, the locking mechanism 140 is in the unlocked state, and the turntable 120 can be rotated and slid relative to the base 110 via the rotation sliding mechanism 130 to the position facing the second direction D2 as shown in Figure 6, or the position facing the third direction D3 as shown in Figure 5.

[0137] During the rotation and sliding of the turntable 120 relative to the base 110, as shown in Figures 17 and 18, the bottom surface of the second cover 122 of the turntable 120 moves on the bearing surface 114 of the base 110, causing the first locking hook 141A and the second locking hook 141B to be abutted by the bearing surface 114. Therefore, even if the caregiver removes the force applied to the operating member 143, the first locking hook 141A and the second locking hook 141B will still remain in the unlocked position. Only when the turntable 120 is rotated back to the position facing the first direction D1, and the first locking hook 141A and the second locking hook 141B are aligned with the corresponding insertion holes 1141 on the base 110, do the first locking hook 141A and the second locking hook 141B return to the locked position by the elastic force applied to the first driving member 144A and the second driving member 144B by the first elastic member 145, that is, the first locking hook 141A and the second locking hook 141B again extend into the receiving cavity 111 through the corresponding insertion holes 1141 to engage with the first locking rod 142A and the second locking rod 142B, respectively. The second cover 122 of the turntable 120 substantially coincides with the bearing surface 114 of the base 110, and the turntable 120 and the passenger compartment 200 are again fixed relative to the base 110 facing the first direction D1.

[0138] It is worth noting that, as shown in Figures 12 and 13, since each operating element 143 is provided with four drive slots 1432a to be driven and connected to the drive columns 1441 of the four driving elements 144 respectively, pulling any one operating element 143 in the left-right direction of the turntable 120 can simultaneously drive all four driving elements 144 to move, thereby simultaneously rotating the four locking hooks 141 to the unlock position. It can be understood that the extension directions of the drive slots 1432a of the two operating elements 143 in this embodiment are opposite. Since the operating directions of the two operating elements 143 are opposite (i.e., facing the left-right direction of the turntable 120 respectively), pulling any one side of the operating element 143 can cause each pair of corresponding driving elements 144 to move closer to each other, thereby pulling the locking hooks 141 to unlock, thus facilitating one-handed operation. When the turntable 120 is fixed relative to the base 110 in the first direction D1, the two operating parts 143 are located on one side of the second direction D2 and the third direction D3, respectively. The caregiver can freely choose the operating part 143 closest to them to perform the unlocking operation, making the process of taking out or placing the infant more convenient. In this embodiment, the two locking hooks 141 in each locking mechanism 140 are arranged along the front-back direction of the turntable 120 and are offset from the rotation axis O. Their extension direction does not coincide with the extension direction of the slide groove 1142 during rotation. It is understandable that even if one locking hook 141 is located above the slide groove 1142 during rotation, the other corresponding locking hook 141 will be abutted by the bearing surface 114. That is, when the turntable 120 rotates to the second direction D2 or the third direction D3, the two slide grooves 1142 and the two locking hooks 141 in each set of locking mechanisms 140 are not aligned at the same time. That is, at least one locking hook 141 in each set of locking mechanisms 140 abuts against the bearing surface 114. Since the four locking hooks 141 are linked at the same time, the locking hook 141 located above the slide groove 1142 will not fall into the slide groove 1142. This can avoid the situation where a locking hook 141 moves to the top of the slide groove 1142 and is accidentally jammed or affected by the lack of the pushing force of the bearing surface 114 when it loses the pushing force of the bearing surface 1142. This makes the rotation and movement of the turntable 120 relative to the base 110 smoother.

[0139] It should be understood that the arrangement of the number and position of each component in the locking mechanism 140 in this embodiment is only for illustrative purposes and is not intended to be limiting. In other embodiments, for example, only one operating member 143, one first locking hook 141A, one second locking hook 141B, one first driving member 144A, one second driving member 144B, and one first elastic member 145 may be provided, and the first locking hook 141A and the second locking hook 141B may be selectively engaged with the first locking rod 142A and the second locking rod 142B, respectively, through the operating member 143 and the first elastic member 145. Alternatively, in some other embodiments, if the engaging force is sufficient, only one locking hook 141, one driving member 144, and one locking rod 142 may be provided. Or, in still other embodiments, three operating members 143 with different pulling directions may be provided, for example, in addition to being pulled along the left and right sides of the base 110, the operating members 143 may also be pulled from the front or rear side of the base 110.

[0140] Furthermore, as shown in Figures 18 and 19, the support base 100 also includes a blocking mechanism 150. The blocking mechanism 150 can prevent the slide groove 1142 from being partially exposed and causing a jamming risk during the rotation of the turntable 120. The blocking mechanism 150 includes a blocking member 151 and a second elastic member 152. The blocking member 151 is pivotally connected to the base 110 and is rotatable between a blocked position and an open position. The second elastic member 152 abuts against the base 110 and the blocking member 151, respectively. The second elastic member 152 constantly biases the blocking member 151 toward the blocked position, and the connecting protrusion 133 is used to push the blocking member 151 to rotate the blocking member 151 toward the open position.

[0141] Specifically, as shown in Figures 19 and 20, there are two blocking mechanisms 150, both located within the receiving cavity 111. The two blocking members 151 of the two blocking mechanisms 150 are used to block portions of the slide groove 1142 near the first end 1142a and near the second end 1142b, respectively. Each blocking member 151 is a long strip-shaped structure with a width slightly greater than or equal to the width of the slide groove 1142. One end of each blocking member 151 is pivotally connected to the base 110 near the first end 1142a and the second end 1142b, respectively, and the other end of each blocking member 151 is provided with a pushing slope 1511. The pushing slopes 1511 of the two blocking members 151 are spaced apart and arranged opposite to each other. The two second elastic members 152 of the two blocking mechanisms 150 are used to bias the two blocking members 151 toward their corresponding blocking positions. In this embodiment, the second elastic member 152 is a torsion spring.

[0142] As shown in Figure 19, taking one of the blocking mechanisms 150 as an example, the blocking member 151 is pivotally connected to the base 110 through the pivot post 101, and the second elastic member 152 is wound around the pivot post 101 at approximately the middle. The two ends of the second elastic member 152 abut against the base 110 and the blocking member 151, respectively.

[0143] Specifically, as shown in Figure 20, when the turntable 120 rotates relative to the base 110 to face the first direction D1, the turntable 120 approximately coincides with the bearing surface 114. At this time, the groove 1142 of the bearing surface 114 is completely blocked by the turntable 120. The connecting protrusion 133 is approximately located at the center point Q of the groove 1142, and both blocking members 151 are in the blocking position. In this embodiment, the center point Q is located at the geometric center of the bearing surface 114, that is, the center of the bearing surface 114. When the turntable 120 rotates relative to the base 110 to face the first direction D1, the rotation axis O coincides with the center point Q. As shown in Figure 21, when the turntable 120 rotates relative to the base 110 towards the second direction D2, the connecting protrusion 133 pushes against the pushing slope 1511 of the blocking member 151 near the first end 1142a, causing the blocking member 151 to rotate towards the open position. This allows the connecting protrusion 133 to move unimpeded towards the first end 1142a until the turntable 120 faces the second direction D2 relative to the base 110. At this time, the turntable 120 only overlaps with the right side of the bearing surface 114. The portion of the slide groove 1142 near the second end 1142b is not blocked by the turntable 120. Since the blocking member 151 near the second end 1142b is still in the blocking position, the portion of the slide groove 1142 not blocked by the turntable 120 will not be exposed, thus avoiding the risk of trapping. As shown in Figure 22, when the turntable 120 rotates relative to the base 110 to face the third direction D3, the connecting protrusion 133 pushes against the pushing slope 1511 of the blocking member 151 near the second end 1142b, causing the blocking member 151 to rotate towards the open position. This allows the connecting protrusion 133 to move unimpeded towards the second end 1142b until the turntable 120 faces the third direction D3 relative to the base 110. At this time, the turntable 120 only overlaps with the left side of the bearing surface 114. At this time, the part of the slide groove 1142 near the first end 1142a is not blocked by the turntable 120. Since the blocking member 151 near the first end 1142a is still in the blocking position, the part of the slide groove 1142 not blocked by the turntable 120 will not be exposed, avoiding the risk of entrapment.

[0144] Further, as shown in Figures 20 to 22, the slide 1142 has a first segment 1142c and a second segment 1142d that are interconnected. The first segment 1142c extends along a second direction D2, and the second segment 1142d extends along a third direction D3. The connection point between the first segment 1142c and the second segment 1142d is the center point Q of the slide 1142. The blocking member 151 may include a first blocking member 151a and a second blocking member 151b. The first blocking member 151a can selectively block at least a portion of the first segment 1142c, and the second blocking member 151b can selectively block at least a portion of the second segment 1142d. The first blocking member 151a and the second blocking member 151b are located on both sides of the center point Q. When the turntable 120 rotates to face the first direction D1, the rotation axis O of the turntable 120 is located at the center point Q, and both the first blocking member 151a and the second blocking member 151b are in the blocking position. When the turntable 120 rotates relative to the base 110 to face the second direction D2, the first blocking member 151a is in the open position and the second blocking member 151b is in the blocking position; when the turntable 120 rotates relative to the base 110 to face the third direction D3, the second blocking member 151b is in the open position and the first blocking member 151a is in the blocking position. The first blocking member 151a and the second blocking member 151b each have a first pushing inclined surface 1511a and a second pushing inclined surface 1511b, which are located at the ends of the first blocking member 151a and the second blocking member 151b near the center point Q, so that they can be pushed by the connecting protrusion 133.

[0145] In this embodiment, as shown in Figures 20 to 22, the pushing slopes 1511 of the two blocking members 151, namely the first pushing slope 1511a and the second pushing slope 1511b, are both inclined towards the first direction D1. Therefore, when pushed by the connecting protrusion 133, both the first pushing slope 1511a and the second pushing slope 1511b rotate and open towards the rear part 113 of the base 110. Of course, in other embodiments, the inclination direction of the first pushing slope 1511a and the second pushing slope 1511b may also be towards the opposite direction of the first direction D1, or one of the pushing slopes 1511 may be towards the first direction D1 and the other pushing slope 1511 may be towards the opposite direction of the first direction D1. This application does not limit this.

[0146] Second Embodiment

[0147] As shown in Figures 23 to 25, the second embodiment of this application proposes an infant carrier 10, such as a child safety seat. Similar to the first embodiment, the infant carrier 10 also includes a seating compartment 200 for carrying an infant and a support base 100 for mounting the seating compartment 200 onto a car seat. The seating compartment 200 in this embodiment has a basically the same structure as the seating compartment 200 in the first embodiment, and can be an infant carrier or a child seat. This embodiment uses an infant carrier as an example for explanation. The rotation sliding mechanism 130 and locking mechanism 140 of the support base 100 in this embodiment differ from those of the support base 100 in the first embodiment; the remaining structures are basically the same as those of the support base 100 in the first embodiment. The following mainly describes the differences between the support base 100 of this embodiment and the support base 100 of the first embodiment:

[0148] As shown in Figure 26, similar to the first embodiment, the base 110 has a shell structure, including a top cover 115 and a bottom cover 116 that interlock, with the interior of the top cover 115 and the bottom cover 116 forming a hollow receiving cavity 111 (see Figure 30). The base 110 has a rear portion 113 and a front portion 112. When the support base 100 is installed in a vehicle, its front portion 112 faces the front of the vehicle, and its rear portion 113 faces the rear of the vehicle (e.g., near the back of the vehicle seat), that is, the front portion 112 is located in front of the rear portion 113. In this embodiment, the rear portion 113 to the front portion 112 of the base 100 are arranged at an angle downwards. The rear portion 150 of the base 100 is raised higher than the front portion 140 of the base 100. The base 110 has a bearing surface 114 (see Figures 24 and 25) on the side facing the turntable 120 (or rotating seat). The bearing surface 114 is located between the front part 112 and the rear part 113, and a groove 1142 communicating with the receiving cavity 111 is provided on the bearing surface 114. Unlike the first embodiment, due to the structural change of the locking mechanism 140 in this embodiment (described in detail below), the bearing surface 114 in this embodiment does not have a through hole 1141.

[0149] Specifically, as shown in Figure 27, the rotary sliding mechanism 130 in this embodiment also includes a transmission gear 131, a rack 132, and a connecting protrusion 133 (see Figure 30). The specific structure and connection relationship of the transmission gear 131, rack 132, and connecting protrusion 133 are roughly the same as those in the first embodiment, and will not be repeated here. The difference is that the rotary sliding mechanism 130 in this embodiment also includes a power transmission mechanism 134. The power transmission mechanism 134 is movably disposed on the turntable 120 or the base 110 and is drivenly connected to the transmission gear 131. The power transmission mechanism 134 is used to drive the transmission gear 131 to rotate, thereby making it easier for the turntable 120 (or the passenger cabin 200) to rotate and slide relative to the base 110, thus improving the user experience.

[0150] Specifically, as shown in Figures 27 and 28, the power transmission mechanism 134 includes an electric drive device 1341 and a transmission module 1342. In this embodiment, the power transmission mechanism 134 is disposed on the base 110. The electric drive device 1341 is movably disposed on the base 110, and the transmission module 1342 is disposed between the output end of the electric drive device 1341 and the transmission gear 131. Thus, the power output by the electric drive device 1341 can be transmitted to the transmission gear 131 through the transmission module 1342, thereby driving the turntable 120 to rotate and slide relative to the base 110. Of course, in other embodiments, the power transmission mechanism 134 may also include other types of drive devices, such as pneumatic mechanisms, hydraulic mechanisms, etc., and is not limited to the electric drive device 1341. Optionally, the electric drive device 1341 may be, for example, a motor. In this embodiment, the electric drive device 1341 is a bidirectional motor, which can drive the turntable 120 to rotate relative to the base 110 about a first rotation direction R1 (e.g., counterclockwise in FIG. 26) or a second rotation direction R2 (e.g., clockwise in FIG. 26). The first rotation direction R1 and the second rotation direction R2 are opposite. Of course, in other embodiments, the electric drive device 1341 can also be a unidirectional motor, that is, the electric drive device 1341 can only drive the turntable 120 to rotate relative to the base 110 about the first rotation direction R1 or the second rotation direction R2.

[0151] Specifically, as shown in Figures 27 and 28, the transmission module 1342 includes a driving gear 1342a and a driven gear 1342b. The driving gear 1342a is connected to the output end (not shown) of the electric drive device 1341. The driven gear 1342b is connected to the transmission gear 131 and meshes with the driving gear 1342a. Thus, the power output by the electric drive device 1341 can be transmitted to the driven gear 1342b via the driving gear 1342a, and then to the transmission gear 131 via the driven gear 1342b, thereby driving the turntable 120 to rotate and slide relative to the base 110. In this embodiment, both the driving gear 1342a and the driven gear 1342b are full gears, and the radius of the driving gear 1342a is smaller than the radius of the driven gear 1342b. Therefore, the power output by the electric drive device 1341 is transmitted to the transmission gear 131 via the driving gear 1342a and the driven gear 1342b, which has the effect of reducing the rotational speed. In this embodiment, the driven gear 1342b is fixedly connected to the transmission gear 131.

[0152] Further, as shown in Figures 27 and 29, the power transmission mechanism 134 also includes a mounting bracket 1344. The mounting bracket 1344 is slidably disposed on the base 110. The electric drive device 1341 is mounted on the mounting bracket 1344, and the transmission module 1342 is located on the side of the mounting bracket 1344 facing the transmission gear 131. The central shaft 1312 of the transmission gear 131 is connected to the mounting bracket 1344. Specifically, the mounting bracket 1344 can be generally a U-shaped frame structure, including a mounting portion 1344a and two connecting portions 1344b connected to both ends of the mounting portion 1344a. The mounting portion 1344a has a first side 1344c facing away from the transmission gear 131 and a second side 1344d facing the transmission gear 131. The electric drive device 1341 is mounted on the mounting portion 1344a, and the central shaft 1312 is connected to the mounting portion 1344a. Specifically, the mounting portion 1344a may be provided with a first mounting hole 1344e. A portion of the electric drive device 1341 is located on the first side 1344c of the mounting portion 1344a. Another portion of the electric drive device 1341, including its output end, passes through the first mounting hole 1344e through the mounting portion 1344a and is located on the second side 1344d of the mounting portion 1344a to connect with the transmission module 1342. In this embodiment, the mounting portion 1344a may also be provided with a second mounting hole 1344f. The central shaft 1312 passes through the rotation center of the driven gear 1342b and the second mounting hole 1344f, respectively. In this embodiment, the driven gear 1342b has a first through hole 1342c approximately in its middle portion, and the rotation center is approximately located at the center of the first through hole 1342c. In this embodiment, the transmission gear 131 and the driven gear 1342b are fixedly connected, meaning that the transmission gear 131 and the driven gear 1342b can slide and rotate together. The transmission gear 131 and the driven gear 1342b are rotatably connected to the mounting part 1344a via the central shaft 1312, meaning that the transmission gear 131 and the driven gear 1342b can slide together with the mounting part 1344a, and at the same time, the transmission gear 131 and the driven gear 1342b can rotate relative to the mounting part 1344a. Specifically, please refer to Figures 29 and 30 together. The central shaft 1312 is also provided with an elastic finger 1312a. The elastic finger 1312a passes through the first through hole 1342c (that is, through the rotation center of the driven gear 1342b) and the second mounting hole 1344f of the driven gear 1342b in sequence and engages with the first side 1344c of the mounting part 1344a. Thus, the drive gear 131 and the driven gear 1342b can rotate relative to the mounting portion 1344a, and simultaneously, the drive gear 131 and the driven gear 1342b can slide together with the mounting portion 1344a. In this embodiment, there are two elastic fingers 1312a arranged opposite each other. Of course, in other embodiments, the number and position of the elastic fingers 1312a can be adjusted as needed; for example, four elastic fingers 1312a can be provided, with the four elastic fingers 1312a facing each other in pairs.Furthermore, the sidewall of the central shaft 1312 is also provided with a protrusion 1313. The driven gear 1342b is also provided with a second through hole 1342d offset from the first through hole 1342c, the second through hole 1342d being used for the protrusion 1313 to pass through. Specifically, the protrusion 1313 can be connected to the sidewall of the central shaft 1312 through a connector 1314. In this embodiment, there are two protrusions 1313, which are symmetrically arranged relative to the central shaft. The driven gear 1342b is provided with two second through holes 1342d, which are also symmetrically arranged relative to the first through hole 1342c. The two protrusions 1313 are respectively inserted into the two second through holes 1342d to achieve a fixed connection between the transmission gear 131 and the driven gear 1342b, that is, the transmission gear 131 and the driven gear 1342b can rotate together.

[0153] Further, as shown in Figures 27, 28, and 30, the base 110 may also include a fixing member 180, which is fixed to the base 110 and forms a strip groove 181 with the base 110. The strip groove 181 extends approximately along the length direction of the rack 132, that is, approximately along the length direction of the slide groove 1142. The mounting bracket 1344 has a sliding flange 1344g, which is inserted into the strip groove 181 and can slide along the strip groove 181. Specifically, there are two fixing members 180, which are respectively disposed on opposite sides of the transmission gear 131. In this embodiment, the fixing members 180 are respectively located on the front and rear sides of the transmission gear 131. The ends of the two connecting portions 1344b of the mounting bracket 1344 away from the mounting portion 1344a are respectively provided with sliding flanges 1344g. The two sliding flanges 1344g are respectively inserted into the two strip grooves 181 and can slide along the strip grooves 181. This makes the mounting bracket 1344 more securely mounted on the base 110. Referring to Figure 31, taking one of the fasteners 180 as an example, the fastener 180 includes a fastening body 182 and a fastening portion 183 connected to each other. The fastening body 182 is generally elongated. The fastening body 182 is connected to the base 110 via the fastening portion 183. In this embodiment, the fastening portion 183 is generally cylindrical. In this embodiment, there are two fastening portions 183, located at both ends of the fastening body 182. Specifically, the fastening body 182 is connected to the side of the top cover 115 facing the receiving cavity 111 via the two fastening portions 183, thus forming a strip groove 181 between the fastening body 182 and the top cover 115 for accommodating the sliding flange 1344g. When the mounting bracket 1344 is slidably connected to the two fixing members 180 via two sliding flanges 1344g, the mounting portion 1344a of the mounting bracket 1344 and the top cover 115 are spaced apart to form an accommodating space 1340. The accommodating space 1340 is used to accommodate part of the structure of the electric drive device 1341, the transmission gear 131, and the transmission module 1342. The mounting bracket 1344 will not interfere with the rotation of the transmission gear 131, the transmission module 1342, and the driven gear 1342b.

[0154] Further, as shown in Figure 26, the power transmission mechanism 134 may also include an operating component 135. The operating component 135 is electrically connected to the electric drive device 1341. The operating component 135 is used to activate the electric drive device 1341 to rotate when operated. As mentioned above, the electric drive device 1341 in this embodiment is a bidirectional motor. The operating component 135 includes a first operating button 1351 and a second operating button 1352. When the first operating button 1351 is operated, the electric drive device 1341 drives the turntable 120 to rotate relative to the base 110 along a first rotation direction R1; when the second operating button 1352 is operated, the electric drive device 1341 drives the turntable 120 to rotate relative to the base 110 along a second rotation direction R2. Specifically, the first operating button 1351 and the second operating button 1352 may be respectively located on the left and right sides of the turntable 120. When the first operation button 1351 is operated, the turntable 120 can rotate, for example, from the first rotation direction R1 to the second direction D2 as shown in FIG. 24; when the second operation button 1352 is operated, the turntable 120 can rotate, for example, from the second rotation direction R2 to the third direction D3 as shown in FIG. 25. Of course, in other embodiments, if the electric drive device 1341 is a unidirectional motor, the operation component 135 may include only one operation button.

[0155] Of course, in other embodiments, the operation component 135 may not be provided, and the electric drive device 1341 may be started by means of, for example, voice control, remote control by a mobile terminal (such as a mobile phone). Alternatively, while providing the operation component 135, additional means such as voice control or remote control by a mobile terminal (such as a mobile phone) may be added to start the electric drive device 1341.

[0156] Thus, when it is necessary to rotate the passenger compartment 200 from the direction of the first direction D1 as shown in Figure 23 to the direction of the second direction D2 as shown in Figure 24, the first operation button 1351 can be pressed. At this time, the output end of the electric drive device 1341 rotates along the second rotation direction R2, simultaneously driving the drive gear 1342a to rotate along the second rotation direction R2. Simultaneously, since the drive gear 1342a and the driven gear 1342b mesh with each other, the drive gear 1342a drives the driven gear 1342b to rotate along the first rotation direction R1, and the driven gear 1342b also drives the transmission gear 131 connected to it to rotate along the first rotation direction R1. The transmission gear 131, through its engagement with the rack 132, rotates along the first rotation direction R1 while sliding towards the base 110 in the second direction D2, causing the turntable 120, which is driven and connected to the transmission gear 131, to rotate and slide, thereby causing the passenger compartment 200 to slide to a position closer to the door in the second direction D2. When it is necessary to rotate the passenger compartment 200 from the first direction D1 as shown in Figure 23 to the third direction D3 as shown in Figure 25, the second operation button 1352 can be pressed. At this time, the electric drive device 1341 rotates along the first rotation direction R1, and simultaneously drives the drive gear 1342a to rotate along the first rotation direction R1. Simultaneously, since the drive gear 1342a and the driven gear 1342b mesh with each other, the drive gear 1342a drives the driven gear 1342b to rotate along the second rotation direction R2, and the driven gear 1342b drives the transmission gear 131 fixedly connected to it to rotate along the second rotation direction R2. The transmission gear 131, through its engagement with the rack 132, rotates along the second rotation direction R2 while sliding towards the third direction D3 of the base 110, causing the turntable 120, which is driven and connected to the transmission gear 131, to rotate and slide, thereby moving the passenger compartment 200 to a position close to the door in the third direction D3.

[0157] In another example, as shown in Figure 32, the power transmission mechanism 134 can also be disposed on the turntable 120. The power transmission mechanism 134 in this embodiment also includes an electric drive device 1341 and a transmission module 1342. The electric drive device 1341 is movably disposed on the turntable 120. The transmission gear 131 is connected to the turntable 120, and the rack 132 is connected to the base 110. The transmission module 1342 is disposed between the output end of the electric drive device 1341 and the transmission gear 131. Thus, the power output by the electric drive device 1341 can be transmitted to the transmission gear 131 through the transmission module 1342, thereby driving the turntable 120 to rotate and slide relative to the base 110. The driving gear 1342a is connected to the output end of the electric drive device 1341. The driven gear 1342b is connected to the transmission gear 131 and meshes with the driving gear 1342a. Thus, the power output by the electric drive device 1341 can be transmitted to the driven gear 1342b via the driving gear 1342a, and then to the transmission gear 131 via the driven gear 1342b, thereby driving the turntable 120 to rotate and slide relative to the base 110. Specifically, as shown in FIG32, the electric drive device 1341, the transmission module 1342, and the transmission gear 131 are all disposed in the mounting cavity 123 of the turntable 120. The rack 132 is fixed to the upper surface of the top cover 115 of the base 110. The second cover 122 of the turntable 120 is provided with an opening 126 communicating with the mounting cavity 123. The rack 132 extends into the mounting cavity 123 through the opening 126 to mesh with the transmission gear 131.

[0158] In this embodiment, the mounting bracket 1344 is slidably disposed on the turntable 120. Specifically, at least a portion of the mounting bracket 1344 is slidably disposed within the mounting cavity 123 of the turntable 120. An electric drive device 1341 is mounted on the mounting bracket 1344, and a transmission module 1342 is located on the side of the mounting bracket 1344 facing the transmission gear 131. The central shaft 1312 of the transmission gear 131 is connected to the mounting bracket 1344. Specifically, the second cover 122 of the turntable 120 has a connecting protrusion 133 protruding into the mounting cavity 123, and the connecting protrusion 133 is connected to the axis of the transmission gear 131. Specifically, the mounting bracket 1344 can be generally a U-shaped frame structure, including a mounting portion 1344a and two connecting portions 1344b connected to both ends of the mounting portion 1344a. The mounting portion 1344a has a first side 1344c facing away from the transmission gear 131 and a second side 1344d facing the transmission gear 131. An electric drive device 1341 is mounted on a mounting portion 1344a, and a central shaft 1312 is connected to the mounting portion 1344a. Specifically, the mounting portion 1344a may be provided with a first mounting hole 1344e. Part of the electric drive device 1341 is located on a first side 1344c of the mounting portion 1344a, and another part of the electric drive device 1341, including the output end, passes through the first mounting hole 1344e through the mounting portion 1344a and is located on a second side 1344d of the mounting portion 1344a to connect with the transmission module 1342. In this embodiment, the mounting portion 1344a may also be provided with a second mounting hole 1344f, and the central shaft 1312 passes through the rotation center of the driven gear 1342b and the second mounting hole 1344f, respectively. In this embodiment, the driven gear 1342b has a first through hole 1342c approximately in the middle, and the rotation center is approximately located at the center of the first through hole 1342c. In this embodiment, the transmission gear 131 and the driven gear 1342b are fixedly connected, meaning they can slide and rotate together. The transmission gear 131 and the driven gear 1342b are rotatably connected to the mounting portion 1344a via a central shaft 1312, meaning they can slide together with the mounting portion 1344a and rotate relative to it. The specific structure of the central shaft 1312 is the same as in the previous embodiment and will not be repeated here. The only difference is that in the previous embodiment, the electric drive device 1341 and the transmission module 1342 are both located below the transmission gear 131, while in this embodiment, both are located above the transmission gear 131.

[0159] Further, as shown in Figure 32, similar to the previous embodiment, the fixing member 180 is fixed to the base 110, and a strip groove 181 is formed between the fixing member 180 and the base 110. The strip groove 181 extends approximately along the length direction of the rack 132, that is, approximately along the length direction of the slide groove 1142. The mounting bracket 1344 has a sliding flange 1344g, which is inserted into the strip groove 181 and can slide along the strip groove 181. There are two fixing members 180, which are located on the front and rear sides of the transmission gear 131, respectively. It is worth noting that in this embodiment, the transmission gear 131 is located in the mounting cavity 123 of the turntable 120. The ends of the two connecting portions 1344b of the mounting bracket 1344 that are away from the mounting portion 1344a are respectively provided with sliding flanges 1344g. The difference from the previous embodiment is that, in this embodiment, the mounting bracket 1344 includes a mounting portion 1344a which is disposed in the mounting cavity 123 of the turntable 120. The two connecting portions 1344b of the mounting bracket 1344, each having a sliding flange 1344g, are respectively inserted into the receiving cavity 111 of the base 110 so that the two sliding flanges 1344g are respectively inserted into the two strip grooves 181, thereby further realizing the sliding connection between the power transmission mechanism 134 (or the turntable 120) and the base 110.

[0160] The power transmission mechanism 134 in this embodiment may also include an operation component 135, the structure and working principle of which are the same as those in the previous embodiment, and will not be described again here.

[0161] Specifically, as shown in Figures 30 and 31, the support base 100 in this embodiment does not have a locking mechanism 140. The support base 100 in this embodiment has a reinforcing hook 160. The reinforcing hook 160 is disposed on the base 110, and when the turntable 120 rotates relative to the base 110 to the first direction D1, the reinforcing hook 160 hooks with the edge of the turntable 120. In this embodiment, the reinforcing hook 160 is at least partially located within the receiving cavity 111 of the base 110 and connected to the base 110. The base 110 has a through hole 1193 (see Figure 26) that communicates with the receiving cavity 111. At least the hook portion 161 of the reinforcing hook 160 passes through the through hole 1193 out of the receiving cavity 111 and is located on the upper surface of the base 110. Specifically, a fixing seat 1192 is provided in the receiving cavity 111 of the base 110. The fixing seat 1192 is fixed to the bottom cover 116 of the base 110 by fasteners 190. The end of the reinforcing hook 160 away from the hook portion 161 is fixedly connected to the fixing seat 1192. When the turntable 120 rotates relative to the base 110 to face the first direction D1, the reinforcing hook 160 hooks with the edge of the turntable 120, thereby strengthening the connection between the turntable 120 and the base 110. When the turntable 120 rotates relative to the base 110 to face the second direction D2 or the third direction D3, the edge of the turntable 120 deviates from the reinforcing hook 160, and the reinforcing hook 160 does not hook with the edge of the turntable 120. Of course, in other embodiments, if the seating compartment 200 is a child seat instead of an infant carrier, the turntable 120 can rotate relative to the base 110 to face the fourth direction (not shown in the figure), which is opposite to the first direction D1. When the turntable 120 rotates relative to the base 110 to face the fourth direction, the reinforcing hook 160 can also hook onto the edge of the turntable 120 to strengthen the connection between the turntable 120 and the base 110.

[0162] In embodiments not shown, the transmission module 1342 can also be omitted, meaning the output end of the electric drive device 1341 can be directly connected to the transmission gear 131, thereby directly driving the transmission gear 131 to rotate. Alternatively, the driven gear 1342b in the transmission module 1342 can be omitted, with the driving gear 1342a directly meshing with the transmission gear 131, thus the electric drive device 1341 driving the transmission gear 131 to rotate via the driving gear 1342a. Alternatively, the transmission module 1342 can include the driving gear 1342a and multiple driven gears 1342b, with the driving gear 1342a and multiple driven gears 1342b meshing with each other, and the electric drive device 1341 driving the transmission gear 131 to rotate via the driving gear 1342a and multiple driven gears 1342b. In short, the form of the transmission module 1342 is not limited and can be omitted, and can be adjusted according to actual needs.

[0163] The aforementioned support base 100 and infant carrier 10 have at least the following technical effects:

[0164] The turntable 120 of the aforementioned support base 100 can rotate and slide relative to the base 110 through the meshing of the transmission gear 131 and rack 132 in the rotation sliding mechanism 130. When the base 110 is installed on a car seat and the passenger compartment 200 is installed on the turntable 120, the turntable 120 can rotate and slide relative to the base 110 to a position close to either side of the car door. This makes it convenient to take out or place infants and toddlers in the passenger compartment 200, greatly improving the user experience and satisfaction of infant and toddler vehicles.

[0165] 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.

[0166] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A load-bearing base, characterized in that, include: Base for securing to car seats; A turntable for installing the passenger cabin, and movably mounted on the base; and A rotary sliding mechanism is disposed between the turntable and the base, the rotary sliding mechanism comprising: The transmission gear is fixed to the turntable; and A rack is fixed to the base; The turntable can rotate and slide relative to the base through the meshing of the rack and the transmission gear.

2. The bearing base according to claim 1, characterized in that, The turntable can be locked relative to the base in at least a first direction, and the rack extends perpendicularly to the first direction.

3. The bearing base according to claim 2, characterized in that, The rack extends along a second direction or a third direction. When the turntable rotates from toward the first direction to toward the second direction or toward the third direction, the rack drives the transmission gear to move toward the second direction or the third direction, so that the passenger cabin extends toward the second direction or the third direction relative to the base.

4. The bearing base according to claim 1, characterized in that, The base has a receiving cavity and a sliding groove communicating with the receiving cavity, and the axis of the transmission gear can move along the sliding groove.

5. The bearing base according to claim 4, characterized in that, The slide is located on the side of the base facing the turntable, and the slide extends along a second direction or a third direction, wherein the second direction and the third direction are parallel and opposite.

6. The bearing base according to claim 5, characterized in that, When the turntable is oriented toward the second direction or the third direction relative to the base, the transmission gear drives the turntable to rotate and slide along the groove toward the second direction or the third direction relative to the base.

7. The bearing base according to claim 5, characterized in that, The rack extends in a direction parallel to the groove.

8. The bearing base according to claim 7, characterized in that, The groove is located on one side of the rack in the first direction.

9. The bearing base according to claim 4, characterized in that, The rotary sliding mechanism further includes: A connecting protrusion, the first end of which is connected to the turntable, and the second end of which is connected to the shaft of the transmission gear; The transmission gear and the rack are both located in the receiving cavity, and the second end of the connecting protrusion passes through the groove into the receiving cavity and is connected to the shaft of the transmission gear.

10. The bearing base according to claim 9, characterized in that, The turntable can be locked relative to the base in at least a first direction. The slide has a first end and a second end. When the transmission gear moves to make the connecting protrusion approach or be located at the first end, the turntable is oriented relative to the base in a second direction. When the transmission gear moves to make the connecting protrusion approach or be located at the second end, the turntable is oriented relative to the base in a third direction. The second direction and the third direction are opposite, and both the second direction and the third direction are perpendicular to the first direction.

11. The bearing base according to claim 1, characterized in that, Also includes: A locking mechanism that can switch between a locked state and an unlocked state, wherein when the locking mechanism is in the locked state, the locking mechanism locks the turntable relative to the base in at least a first direction; When the locking mechanism is in the unlocked state, the turntable can rotate and slide relative to the base through the rotation and sliding mechanism.

12. The bearing base according to claim 11, characterized in that, The locking mechanism includes: A locking hook is provided on the turntable and is movable between a locked position and an unlocked position; and The locking lever is fixedly mounted on the base. When the locking mechanism is in the locked state, the locking hook is in the locked position and is engaged with the locking rod; when the locking mechanism is in the unlocked state, the locking hook is in the unlocked position and is disengaged from the locking rod.

13. The bearing base according to claim 12, characterized in that, The locking mechanism also includes: An operating element is operably disposed on the turntable; A driving component, one end of which is drivenly connected to the operating component, and the other end of which is connected to the locking hook; and The first elastic element abuts against the driving element; The operating member can be operated to move the driving member, causing the driving member to move the locking hook toward the unlocking position, and the first elastic member biases the driving member to cause the driving member to move the locking hook toward the locking position.

14. The bearing base according to claim 13, characterized in that, One end of the driving member has a driving post, the operating member has a driving groove, the driving post is inserted into the driving groove and is used to move along the driving groove.

15. The bearing base according to claim 13, characterized in that, The locking hook is pivotally connected to the turntable at a first connection point, and the other end of the driving member is connected to the locking hook at a second connection point. The first connection point and the second connection point do not coincide. The driving member is used to drive the locking hook to rotate between the locked position and the unlocked position.

16. The bearing base according to claim 12, characterized in that, The base has a receiving cavity and an insertion hole communicating with the receiving cavity. The locking rod is located in the receiving cavity. When the locking hook is in the locked position, the locking hook passes through the insertion hole into the receiving cavity to engage with the locking rod. When the locking hook is in the unlocked position, the locking hook exits the receiving cavity through the insertion hole and abuts against the side of the base facing the turntable.

17. The bearing base according to claim 13, characterized in that, The locking hooks include a first locking hook and a second locking hook spaced apart from the turntable, and the locking rods include a first locking rod and a second locking rod fixed to the base at a distance. The driving component includes a first driving component and a second driving component. One end of the first driving component is drivenly connected to the operating component, and the other end of the first driving component is connected to the first locking hook. One end of the second driving component is drivenly connected to the operating component, and the other end of the second driving component is connected to the second locking hook. The first elastic member has two ends that abut against the first driving member and the second driving member, respectively; The operating member can be operated to move the first driving member and the second driving member, such that the first driving member and the second driving member respectively drive the first locking hook and the second locking hook to move toward the unlocking position, and the first elastic member biases the first driving member and the second driving member to drive the first locking hook and the second locking hook to move toward the locking position.

18. The bearing base according to claim 12, characterized in that, The locking mechanism has at least two sets, and at least two sets of the locking mechanism are simultaneously in a locked state or an unlocked state.

19. The bearing base according to claim 13, characterized in that, The operating components include at least two, and the operating directions of the at least two operating components form an angle with each other. When any one of the at least two operating components is operated, it can drive the driving components of at least two sets of locking mechanisms to move, so that the driving components of the at least two sets of locking mechanisms drive the corresponding locking hooks to move toward the unlocking position.

20. The bearing base according to claim 13, characterized in that, The locking mechanism includes two operating components, which are operated in opposite directions, and / or the two operating components are respectively located on one side of the turntable in the left-right direction.

21. The bearing base according to claim 4, characterized in that, It also includes a shielding mechanism for selectively shielding the slide.

22. The bearing base according to claim 21, characterized in that, The blocking mechanism includes: A shielding member is pivotally connected to the base and is rotatable between a shielded position and an open position; The second elastic element abuts against the base and the shielding element; The second elastic member biases the blocking member toward the blocking position.

23. The bearing base according to claim 22, characterized in that, The rotary sliding mechanism further includes: a connecting protrusion, one end of which is connected to the turntable, and the second end of which is connected to the shaft of the transmission gear; When the turntable rotates relative to the base to face a first direction, the blocking member is in a blocking position; and / or, when the turntable rotates relative to the base to face a second or third direction, the connecting protrusion pushes against the blocking member to cause the blocking member to rotate to the open position.

24. The bearing base according to claim 23, characterized in that, One end of the shield is pivotally connected to the base, and the other end of the shield is provided with a pushing slope. The connecting protrusion pushes against the pushing slope to make the shield rotate toward the open position.

25. The bearing base according to claim 22, characterized in that, The chute has a first section and a second section that are interconnected. The first section extends along a second direction, and the second section extends along a third direction. The blocking member includes a first blocking member and a second blocking member. The first blocking member can selectively block at least a portion of the first section, and the second blocking member can selectively block at least a portion of the second section.

26. The bearing base according to claim 25, characterized in that, With the connection point between the first segment and the second segment as the center point, the first blocking member and the second blocking member are respectively located on both sides of the center point. When the turntable rotates to face the first direction, the rotation axis of the turntable is located at the center point, and both the first blocking member and the second blocking member are located at the blocking position.

27. The bearing base according to claim 26, characterized in that, When the turntable rotates relative to the base to face the second direction, the first blocking member is in the open position and the second blocking member is in the blocking position; When the turntable rotates relative to the base to face a third direction, the second blocking member is in the open position and the first blocking member is in the blocking position.

28. The bearing base according to claim 26, characterized in that, With the connection point between the first segment and the second segment as the center point, the first shielding member and the second shielding member are located on both sides of the center point. The first shielding member and the second shielding member each have a first pushing slope and a second pushing slope. The first pushing slope and the second pushing slope are located at the ends of the first shielding member and the second shielding member closer to the center point.

29. The bearing base according to claim 1, characterized in that, Also includes: A power transmission mechanism is movably mounted on the turntable or the base and is used for drive connection with the transmission gear; The power transmission mechanism is used to drive the transmission gear to rotate.

30. The bearing base according to claim 29, characterized in that, The power transmission mechanism includes: An electrically driven device is movably mounted on the turntable or the base; and The transmission module is connected to the output end of the electric drive device and is also connected to the transmission gear drive.

31. The bearing base according to claim 30, characterized in that, The transmission module includes: The drive gear is connected to the output terminal of the electric drive device; and The driven gear is connected to the transmission gear and meshes with the driving gear.

32. The bearing base according to claim 31, characterized in that, The driven gear is connected to the central shaft of the transmission gear.

33. The bearing base according to claim 30, characterized in that, The power transmission mechanism also includes: The mounting bracket is slidably mounted on the base; The electric drive device is mounted on the mounting bracket, the transmission module is located on the side of the mounting bracket facing the transmission gear, and the central shaft of the transmission gear is connected to the mounting bracket.

34. The bearing base according to claim 33, characterized in that, Also includes: A fastener is provided on the base and forms a strip groove between it and the base; The strip groove extends approximately along the length of the rack, and the mounting bracket has a sliding flange that is inserted into the strip groove and can slide along the strip groove.

35. The bearing base according to claim 30, characterized in that, Also includes: The operating component is electrically connected to the electrically driven device; The operating component is used to activate the electric drive device to rotate when operated.

36. The bearing base according to claim 35, characterized in that, The electric drive device is a bidirectional motor, and the operating component includes a first operating button and a second operating button. When the first operating button is operated, the electric drive device drives the turntable to rotate relative to the base in a first rotation direction; when the second operating button is operated, the electric drive device drives the turntable to rotate relative to the base in a second rotation direction, wherein the first rotation direction and the second rotation direction are opposite.

37. The bearing base according to claim 1, characterized in that, It also includes a reinforcing hook, which is disposed on the base. When the turntable rotates relative to the base to face the first direction, the reinforcing hook engages with the edge of the turntable.

38. An infant carrier, characterized in that, include: Passenger cabin; and, The carrying base as described in any one of claims 1-37, wherein the passenger cabin is for mounting on the turntable.

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