Base device suitable for child safety seat

Abstract

The invention belongs to the technical field of children products and appliances, and discloses a base device suitable for a child safety seat. The device comprises a base shell, a rotating disc, a locking assembly and a memory structure, the rotating disc is rotatably arranged on the base shell, and a plurality of inserting grooves are formed in the circumferential direction of the rotating disc; the locking assembly is arranged in the base shell in a sliding mode along the X axis, and the locking assembly is provided with a locking position and an unlocking position which are switched in a sliding mode along the X axis; the memory structure is provided with a locking piece which can slide along the Z axis, when the locking assembly is switched to the unlocking position, part of the locking piece can be clamped to the locking assembly so that the locking assembly can be kept at the unlocking position, when the rotating disc rotates, the locking piece can be pressed downwards along the Z axis so that the locking piece can be separated from the locking assembly, and when the rotating disc rotates till any inserting groove right faces the locking handle along the X axis, the locking assembly can be locked. The locking handle is inserted into the inserting groove in a sliding mode so as to be switched to the locking position. The base device supports one-hand operation of an operator during angle adjustment, emergency situations can be dealt with in time, safety is high, and operation is easy.

Description

Technical Field

[0001] The present invention relates to the technical field of children's products and appliances, and in particular to a base device suitable for a child safety seat. Background Art

[0002] Child safety seats are widely used in motor vehicles to restrain and protect infants and young children. In the prior art, these seats typically consist of a child safety carrier and a base assembly, which in turn includes a base shell, handles, and a turntable. The child safety carrier is removably or fixedly mounted on the turntable, which is rotatably mounted on the base shell, allowing the carrier to adjust its angle relative to the vehicle seat.

[0003] To achieve angular positioning, the turntable's outer circumference or end surface is equipped with several limit slots. The handle is mounted on the base shell in an axially or radially movable manner, with one end engaging the limit slot. To adjust the angle, the operator continuously pulls the handle outward until the end of the handle disengages the limit slot. Then, with the other hand, rotate the turntable to the desired angle and release the handle. A spring or other reset element automatically rebounds the handle and reinserts it into the corresponding limit slot, completing the locking process.

[0004] However, this structure has significant drawbacks: during adjustment, the operator must maintain pressure on the handle with one hand while rotating the dial with the other. Both hands are occupied, making it impossible to comfort or support the baby simultaneously. If the baby cries, slips, or experiences other unexpected situations, the operator cannot free their hands in time to respond, posing a potential safety hazard.

[0005] Therefore, it is necessary to provide a base device suitable for a child safety seat to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a base device suitable for a child safety seat, which supports the operator to operate with one hand when adjusting the angle, so that the operator can deal with emergencies of infants and children when adjusting the angle, with high safety and simple and convenient operation.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A base device suitable for a child safety seat, comprising:

[0009] A base shell and a turntable, wherein the turntable is rotatably arranged on the base shell, and a plurality of plug-in slots are opened on the circumference of the turntable;

[0010] a locking assembly slidably disposed within the base shell along an X-axis, the locking assembly having a locked position for engaging with the insertion slot and an unlocked position away from the insertion slot, the locking assembly sliding along the X-axis to switch between the locked position and the unlocked position;

[0011] A memory structure is fixedly provided on the base shell, and the memory structure has a locking piece slidably provided along the Z-axis. When the locking assembly is switched to the unlocked position, part of the locking piece can be clamped in the locking assembly to keep the locking assembly in the unlocked position. When the turntable rotates, the locking piece can be pressed downward along the Z-axis to disengage the locking piece from the locking assembly. When the turntable rotates to any of the plug-in slots facing the locking handle along the X-axis, the locking handle is slidably inserted into the plug-in slot to switch to the locked position.

[0012] Preferably, the base shell has a avoidance opening, and the locking member has a protrusion, the protrusion is opposite to the avoidance opening, and along the Z axis, the end face of the protrusion is higher than the end face of the base shell, when the locking assembly is in the locked position, the avoidance opening is opposite to the plug-in slot, and when the locking member is in the unlocked position, rotating the turntable can press the protrusion downward along the Z axis.

[0013] Preferably, along the rotation direction of the turntable, both sides of the protrusion have guiding slopes, and the guiding slopes are used to guide the rotation of the turntable.

[0014] Preferably, the locking member includes a braking portion, which is located on the side of the protrusion away from the turntable along the X-axis. The locking assembly includes a locking handle, which has a plug-in portion, which can be plugged into the plug-in slot. The plug-in portion is provided with a locking slot and an avoidance slot at intervals along the X-axis on the side facing the locking assembly. When the locking assembly is in the locked position, the braking portion is located in the avoidance slot. When the locking assembly slides along the X-axis to switch to the unlocked position, the plug-in portion can press the braking portion downward along the Z-axis to make the braking portion disengage from the avoidance slot. Until the locking slot is facing the braking portion, the braking portion is reset upward along the Z-axis to be stuck in the locking slot.

[0015] Preferably, along the X-axis, one side of the braking portion has a guiding slope, and the guiding slope is used to guide the plug-in portion to slide along the X-axis.

[0016] Preferably, the memory structure further comprises:

[0017] a mounting member fixed to the base shell, the mounting member having a receiving groove extending along the Z axis, the locking member being slidably disposed in the receiving groove along the Z axis;

[0018] The first elastic member extends along the Z axis, one end of the first elastic member is connected to or abuts the accommodating groove, the other end of the first elastic member is connected to or abuts the mounting member, and the first elastic member is used to drive the locking member to move and reset along the Z axis.

[0019] Preferably, the memory structure further comprises:

[0020] The limiting member has a connecting section and a limiting portion. The connecting section is inserted into the mounting member from the bottom of the mounting member along the Z axis and is threadedly connected to the locking member. The limiting portion is abutted against the bottom of the mounting member. The limiting member is used to limit the extreme position of the upward movement of the locking member along the Z axis.

[0021] Preferably, the base device suitable for the child safety seat further comprises:

[0022] The limiting assembly is arranged in the base shell. When the locking assembly is located at the locking position, the locking assembly abuts against the limiting assembly along the X-axis.

[0023] Preferably, the locking handle further comprises a handle portion, the plug-in portion and the handle portion are distributed in a T-shape, and the connection between the plug-in portion and the handle portion can abut against the limit assembly along the X-axis.

[0024] Preferably, the locking assembly also includes a second elastic member, which extends along the X-axis, one end of the second elastic member is connected to the handle portion, and the other end of the second elastic member is connected to the base shell, and the second elastic member is used to drive the locking handle to slide along the X-axis and be inserted into the insertion slot.

[0025] Beneficial effects of the present invention:

[0026] The base device for a child safety seat includes a base shell, a turntable, a locking assembly and a memory structure. The turntable is rotatably arranged on the base shell, and a plurality of plug-in slots are opened in the circumference of the turntable; the locking assembly is slidably arranged in the base shell along the X-axis, and the locking assembly has a locking position plugged into the plug-in slot and an unlocked position away from the plug-in slot. The locking assembly slides along the X-axis to switch between the locked position and the unlocked position; the memory structure is fixedly arranged on the base shell, and the memory structure has a locking piece slidably arranged along the Z-axis. When the locking assembly is switched to the unlocked position, part of the locking piece can be clamped in the locking piece to keep the locking piece in the unlocked position. When the turntable rotates, it can press the locking piece downward along the Z-axis to disengage the locking piece from the locking assembly. When the turntable rotates to any plug-in slot facing the locking handle along the X-axis, the locking handle is slidably plugged into the plug-in slot to switch to the locked position.

[0027] During normal use, the base device is in a fixed state, that is, the locking assembly is in the locked position and engages with one of the plurality of insertion slots defined in the turntable. In this state, the turntable is fixed and cannot rotate, and the angle of the child safety carrier mounted on the base device relative to the vehicle seat is fixed. When the angle needs to be adjusted, the locking assembly is operated to slide along the X-axis to the unlocked position, at which point the locking assembly moves away from the insertion slot. Simultaneously, a locking member slidable along the Z-axis in the memory structure is partially engaged with the locking member when the locking assembly switches to the unlocked position, thereby retaining the locking member in the unlocked position and eliminating the need for the operator to continuously apply force to maintain the unlocked state. Because the locking member is retained in the unlocked position by the locking member, the turntable can rotate freely. During rotation, the turntable presses downwardly along the Z-axis against the locking member, disengaging the locking member from the locking member. However, the locking member remains in the unlocked position, allowing the turntable to continue rotating to the desired angle. When the turntable rotates until any insertion slot is aligned with the locking assembly along the X-axis, the locking member can slide along the X-axis into the insertion slot, switching to the locked position and re-locking the turntable angle.

[0028] The base device for a child safety seat of the present invention, after being unlocked, maintains the locking assembly in the unlocked position through a memory structure. This eliminates the need for the operator to constantly maintain the unlocked state, freeing both hands to comfort or support the infant, improving operational convenience and safety. During the angle adjustment process, if the infant cries, slips, or experiences other emergencies, the operator can promptly free their hands to respond, effectively avoiding potential safety hazards caused by being unable to promptly address emergencies due to having both hands occupied. This better ensures the safety of the infant and resolves the existing problem of requiring both hands for angle adjustment. When the turntable rotates to any insertion slot facing the locking assembly, the locking assembly automatically slides and engages within the insertion slot to complete the locking process, eliminating the need for the operator to perform additional complex locking operations. This further simplifies the operational process and improves ease of use and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a base device suitable for a child safety seat provided by the present invention;

[0030] Figure 2 This is a schematic structural diagram of a base device (with the base shell hidden) suitable for a child safety seat provided by the present invention;

[0031] Figure 3 This is a cross-sectional view of a base device for a child safety seat provided by the present invention (with the locking assembly in the locked position);

[0032] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle

[0033] Figure 5 This is a second cross-sectional view of the base device for a child safety seat provided by the present invention (the locking assembly is in the unlocked position);

[0034] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0035] Figure 7 It is a structural diagram of the memory structure provided by the present invention;

[0036] Figure 8 is a cross-sectional view of the memory structure provided by the present invention;

[0037] Figure 9 It is a structural schematic diagram of the locking handle provided by the present invention;

[0038] Figure 10 It is a structural schematic diagram of the locking assembly provided by the present invention.

[0039] In the picture:

[0040] 1. Base shell; 11. Avoidance;

[0041] 2. Turntable; 21. Plug-in slot; 22. Pause slot;

[0042] 3. Locking assembly; 31. Locking handle; 311. Insertion portion; 3111. Locking slot; 3112. Avoidance slot; 312. Handle portion; 3121. Handle slot; 32. Second elastic member;

[0043] 4. Memory structure; 41. Locking member; 411. Protrusion; 4111. Guide slope; 412. Braking member; 4121. Guide slope; 42. Mounting member; 421. Accommodating groove; 43. First elastic member; 44. Limiting member; 51. Limiting column. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0045] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0048] like Figures 1-10 As shown, this embodiment provides a base device suitable for a child safety seat, which includes a base shell 1, a turntable 2, a locking assembly 3 and a memory structure 4. The turntable 2 is rotatably arranged on the base shell 1, and a plurality of insertion slots 21 are opened in the circumference of the turntable 2; the locking assembly 3 is slidably arranged in the base shell 1 along the X-axis, and the locking assembly 3 has a locked position inserted with the insertion slot 21 and an unlocked position away from the insertion slot 21. The locking assembly 3 slides along the X-axis to switch between the locked position and the unlocked position; the memory structure 4 is fixedly arranged on the base shell 1, and the memory structure 4 has a locking member 41 slidably arranged along the Z-axis. When the locking assembly 3 switches to the unlocked position, part of the locking member 41 can be locked in the locking assembly 3 to keep the locking assembly 3 in the unlocked position. When the turntable 2 rotates, it can press the locking member 41 downward along the Z-axis to disengage the locking member 41 from the locking assembly 3. When the turntable 2 rotates until any insertion slot 21 is directly opposite the locking handle 31 along the X-axis, the locking handle 31 slides and inserts into the insertion slot 21 to switch to the locked position.

[0049] This base device is in a fixed state during daily use, that is, the locking component 3 is in the locked position, and the locking component 3 is plugged into one of the several plug-in slots 21 provided on the turntable 2. At this time, the turntable 2 is fixed and cannot rotate, and the angle of the child safety carrier provided on this base device relative to the vehicle seat is fixed. When the lock assembly 3 is in the unlocked position, the lock assembly 3 is kept in the unlocked position without the operator having to apply continuous force to maintain the unlocked state. Since the lock assembly 3 is kept in the unlocked position by the lock assembly 3, the turntable 2 can rotate freely. During the rotation of the turntable 2, the turntable 2 will press the lock assembly 41 downward along the Z axis to disengage the lock assembly 3, but at this time the lock assembly 3 still remains in the unlocked position, and the turntable 2 can continue to rotate to the desired angle. When the turntable 2 rotates until any plug-in slot 21 is facing the lock assembly 3 along the X axis, the lock assembly 3 can be slidably inserted into the plug-in slot 21 along the X axis, switched to the locked position, and the angle of the turntable 2 is re-locked.

[0050] The base device for a child safety seat in this embodiment, after being unlocked, maintains the locking assembly 3 in the unlocked position via a memory structure 4. This eliminates the need for the operator to constantly maintain the unlocked position, freeing both hands to comfort or support the child, improving operational convenience and safety. During the angle adjustment process, if the child cries, slips, or experiences other emergencies, the operator can promptly free their hands to respond, effectively avoiding potential safety hazards caused by being unable to promptly address emergencies due to having both hands occupied. This better ensures the safety of the child and resolves the existing problem of requiring both hands for angle adjustment. When the turntable 2 rotates to a position where any insertion slot 21 is directly opposite the locking assembly 3, the locking assembly 3 automatically slides and engages within the insertion slot 21 to complete the locking operation, eliminating the need for the operator to perform additional, complex locking operations. This further simplifies the operational process and improves convenience and safety.

[0051] In this embodiment, two insertion slots 21 are provided, evenly spaced along the circumference of the turntable 2. This arrangement allows the child safety carrier, when mounted on the turntable 2, to face either the vehicle's front windshield or its back. It is understood that the number and distribution of the working insertion slots 21 can be adjusted based on actual needs, and this embodiment does not limit this.

[0052] Alternatively, as Figure 1As shown, the turntable 2 is further provided with at least one pause slot 22 at intervals along its circumference. The locking assembly 3 can be inserted into the pause slot 22, and the turntable 2 can drive the locking assembly 3 out of the pause slot 22 under the action of the rotational force. It is understandable that when the pause slot 22 is rotated to face the locking assembly 3, the locking assembly 3 can be slidably inserted into the pause slot 22 along the X-axis, so that the turntable 2 can be temporarily positioned in the temporary parking position corresponding to the pause slot 22; when the angle of the turntable 2 is to be further adjusted, the locking assembly 3 is driven out of the pause slot 22 by applying a rotational force to the turntable 2, so that when the turntable 2 is adjusted from the temporary parking position to another set position, the operator does not need to adjust the locking assembly 3, thereby improving the convenience of operation and enhancing the user experience.

[0053] Specifically, the pause slot 22 is trapezoidal in shape, with a depth less than that of the insertion slot 21. The larger end of the pause slot 22 is closer to the outer wall of the turntable 2 than the smaller end. It will be appreciated that the two circumferentially spaced sidewalls of the pause slot 22 form guide surfaces. By applying a rotational force to the turntable 2 under the guidance of these guide surfaces, the locking assembly 3 can be disengaged from the pause slot 22.

[0054] More specifically, in this embodiment, Figure 1 As shown, two pause slots 22 are provided. These two pause slots 22 and the two working insertion slots 21 are evenly spaced along the circumference of the turntable 2. A pause slot 22 is provided between any two adjacent insertion slots 21 along the circumference of the turntable 2. This arrangement ensures that when the child safety carrier is facing the vehicle's front windshield or facing away from the vehicle's front windshield, the two pause slots 22 are respectively positioned toward the vehicle's left and right doors. This facilitates adjusting the child safety carrier's position to temporarily face the vehicle's door, further enhancing the user experience. It is understood that the number and distribution of the pause slots 22 can be adjusted based on actual needs.

[0055] Alternatively, as Figure 3-Figure 6As shown, the base shell 1 has an avoidance opening 11, and the locking member 41 has a protrusion 411. The protrusion 411 is opposite to the avoidance opening 11, and along the Z axis, the end surface of the protrusion 411 is higher than the end surface of the base shell 1. When the locking assembly 3 is in the locked position, the avoidance opening 11 is opposite to the plug-in slot 21. When the locking member 41 is in the unlocked position, the rotating turntable 2 can press the protrusion 411 downward along the Z axis. When the locking assembly 3 is in the locked state, the avoidance opening 11 is opposite to the plug-in slot 21, that is, the turntable 2 will not exert a pressing effect on the protrusion 411 of the locking piece 41 at this time. When the angle of the base device needs to be adjusted, the locking assembly 3 is pulled to slide it along the X-axis to the unlocked position, and the locking assembly 3 is disengaged from the plug-in slot 21. At this time, the turntable 2 can rotate. Since the protrusion 411 is higher than the cross-section of the base shell 1, during the rotation of the turntable 2, the turntable 2 will press the protrusion 411 of the locking piece 41 downward along the Z-axis, causing the locking piece 41 to disengage from the locking assembly 3. At this time, although the locking assembly 3 is still in the unlocked state, it has a tendency to move along the X-axis. When any plug-in slot 21 of the turntable 2 is again opposite to the locking assembly 3 along the X-axis, the locking assembly 3 can slide along the X-axis and be inserted into the plug-in slot 21, returning to the locked position. By providing the locking member 41 with a protrusion 411 higher than the end surface of the base shell 1, the turntable 2 can accurately press against the protrusion 411 when rotating, so that the locking member 41 can be displaced along the Z axis according to design requirements, thereby ensuring the effectiveness and reliability of the structure.

[0056] Alternatively, as Figure 7 As shown, along the rotation direction of the turntable 2, the protrusion 411 has guide bevels 4111 on both sides, which are used to guide the rotation of the turntable 2. The guide bevels 4111 provide a smooth transition for the rotation of the turntable 2. During the rotation of the turntable 2, when the edge of the insertion groove 21 of the turntable 2 contacts the guide bevels 4111 of the protrusion 411, the guide bevels 4111 will guide the turntable 2 to continue rotating, avoiding the occurrence of jamming or blocking between the turntable 2 and the protrusion 411, making the rotation of the turntable 2 smoother and more natural, and easier and more labor-saving to operate.

[0057] Alternatively, as Figure 3-Figure 9As shown, the locking member 41 includes a braking portion 412, which is located on the side of the protrusion 411 away from the turntable 2 along the X-axis. The locking assembly 3 includes a locking handle 31, and the locking handle 31 has a plug-in portion 311. The plug-in portion 311 can be plugged into the plug-in slot 21. The plug-in portion 311 is provided with a locking slot 3111 and an avoidance slot 3112 at intervals along the X-axis toward the side of the locking assembly 3. When the locking assembly 3 is in the locked position, the braking portion 412 is located in the avoidance slot 3112. When the locking assembly 3 slides along the X-axis to switch to the unlocked position, the plug-in portion 311 can press the braking portion 412 downward along the Z-axis to make the braking portion 412 disengage from the avoidance slot 3112. Until the locking slot 3111 is facing the braking portion 412, the braking portion 412 is reset upward along the Z-axis to be stuck in the locking slot 3111.

[0058] When the locking assembly 3 is in the locked position, the plug-in portion 311 of the locking handle 31 is plugged into the plug-in slot 21, and the braking portion 412 of the locking member 41 is located in the avoidance slot 3112. At this time, there is no clamping or blocking relationship between the braking portion 412 and the locking handle 31, and the plug-in portion 311 is stably plugged into the plug-in slot 21, so that the turntable 2 and the base shell 1 remain relatively fixed; when the angle of the base device needs to be adjusted, the locking handle 31 is operated to move it along the X-axis to the unlocked position. During the sliding process, The plug-in portion 311 gradually disengages from the plug-in slot 21. At the same time, the plug-in portion 311 can press the brake portion 412 downward along the Z axis, causing the brake portion 412 to move downward along the Z axis and disengage the avoidance slot 3112. As the locking handle 31 continues to slide, when the locking slot 3111 is directly opposite the brake portion 412, the downward pressure on the brake portion 412 disappears, and the brake portion 412 returns to its original position along the Z axis and is locked in the locking slot 3111. At this time, the locking handle 31 is restrained in the unlocked position by the brake portion 412, and the turntable 2 can rotate freely. To unlock, the operator only needs to operate the locking assembly 3 to slide along the X axis. During the sliding process, the locking handle 31 automatically presses and releases the brake portion 412. No additional complex operation is required to control the brake portion 412, and the operator can complete the unlocking action with one hand.

[0059] It can be understood that the locking groove 3111 and the avoidance groove 3112 are arranged on the X-axis such that the locking groove 3111 is located on the side closer to the turntable 2 .

[0060] Alternatively, as Figure 3-Figure 7As shown, along the X-axis, one side of the braking portion 412 has a guiding slope 4121, which is used to guide the plug-in portion 311 to slide along the X-axis. The guiding slope 4121 provides a smooth transition for the sliding of the plug-in portion 311. During the process of pulling the locking handle 31, when the edge of the avoidance groove 3112 of the plug-in portion 311 contacts the guiding slope 4111 of the protruding portion 411, the guiding slope 4111 guides the plug-in portion 311 to continue sliding, avoiding the occurrence of jamming or blocking between the plug-in portion 311 and the braking portion 412, making pulling the locking handle 31 smoother and more natural, and easier and more labor-saving to operate.

[0061] Alternatively, as Figure 8 As shown, the memory structure 4 also includes a mounting member 42 and a first elastic member 43. The mounting member 42 is fixed to the base shell 1. The mounting member 42 has a receiving groove 421 extending along the Z axis. The locking member 41 is slidably arranged in the receiving groove 421 along the Z axis; the first elastic member 43 extends along the Z axis, one end of the first elastic member 43 is connected to or abuts the receiving groove 421, and the other end of the first elastic member 43 is connected to or abuts the mounting member 42. The first elastic member 43 is used to drive the locking member 41 to move and reset along the Z axis. When the locking assembly 3 is in the locked position, the braking portion 412 of the locking piece 41 is located in the avoidance groove 3112 of the plug-in portion 311 of the locking handle 31. At this time, the locking piece 41 is in the initial position under the action of the first elastic member 43; when the locking assembly 3 is operated to slide it along the X-axis to switch to the unlocked position, the plug-in portion 311 will press the braking portion 412 downward along the Z-axis, causing the locking piece 41 to move downward along the Z-axis in the accommodating groove 421. At this time, the first elastic member 43 is compressed, and when the locking groove 3111 is facing the braking portion 412, the first locking piece 41 is reset upward along the Z-axis to push the locking piece 41 to move upward along the Z-axis, so that the braking portion 412 is stuck in the locking groove 3111, fixing the locking handle 31 in the unlocked position so as to rotate the turntable 2.

[0062] In this embodiment, the first elastic member 43 is a spring.

[0063] Alternatively, as Figure 8 As shown, the memory structure 4 further includes a limiter 44, which has a connecting section and a limiting portion. The connecting section extends from the bottom of the mounting member 42 along the Z axis and penetrates into the mounting member 42 and is threadedly connected to the locking member 41. The limiting portion abuts against the bottom of the mounting member 42. The limiter 44 is used to limit the upper limit of the movement of the locking member 41 along the Z axis. By providing the limiter 44, the upper limit of the movement of the locking member 41 along the Z axis can be limited, making the assembly of the memory structure 4 easier, and there is no need to worry about the problem that the locking member 41 cannot be stably accommodated in the accommodating groove 421 under the action of the first elastic member 43.

[0064] In this embodiment, the limiting clamp is specifically a screw.

[0065] Optionally, the base device for a child safety seat further includes a limit assembly disposed within the base shell 1. When the locking assembly 3 is in the locked position, the locking assembly 3 abuts the limit assembly along the X-axis. The limit assembly provides a clear physical boundary for the locking assembly 3. When the locking assembly 3 slides along the X-axis until it abuts the limit assembly, it indicates that the locking assembly 3 has reached the correct locked position, preventing over-insertion of the locking assembly 3 and damage to the locking handle 31 and / or the turntable 2.

[0066] In this embodiment, if Figure 2 As shown, the limiting assembly includes two spaced-apart limiting posts 51, which are respectively provided at two connection points between the plug-in portion 311 and the handle portion 312. The connection point between the plug-in portion 311 and the handle portion 312 can abut against the two limiting posts 51 along the X-axis. By providing two limiting posts 51 corresponding to the two connection points between the plug-in portion 311 and the handle portion 312, the limiting posts 51 can be used to limit the range of motion of the locking handle 31 along the X-axis, thereby preventing the locking handle 31 from being over-inserted and damaging the plug-in portion 311 and / or the turntable 2, and can also be used to guide the locking handle 31 to move only along the X-axis.

[0067] Alternatively, as Figure 2 、 Figure 9 and Figure 10 As shown, the locking handle 31 also includes a handle portion 312. The plug portion 311 and the handle portion 312 are arranged in a T-shape, and the connection between the plug portion 311 and the handle portion 312 can abut against the limit assembly along the X-axis. By setting the locking handle 31 in a T-shape, the connection between the plug portion 311 and the handle portion 312 can abut against the first limit structure along the X-axis, thereby simplifying the structure of the locking handle 31.

[0068] In this embodiment, if Figure 10 As shown, a handle groove 3121 is provided on the handle portion 312. When the turntable 2 needs to be rotated, the operator applies a force along the X-axis to the locking handle 31 through the handle groove 3121, driving the locking handle 31 to move along the X-axis, so that the locking handle 31 switches from the locked position to the unlocked position.

[0069] Alternatively, as Figure 10As shown, the locking assembly 3 further includes a second elastic member 32, which extends along the X-axis. One end of the second elastic member 32 is connected to the handle portion 312, and the other end of the second elastic member 32 is connected to the base shell 1. The second elastic member 32 is used to drive the locking handle 31 to slide along the X-axis and be inserted into the insertion slot 21. When a force along the X-axis is applied to the locking handle 31 to drive the locking handle 31 to move along the X-axis to the unlocked position, the second elastic member 32 is simultaneously compressed. When the locking handle 31 is moved to the unlocked position and the turntable 2 is rotated, the locking handle 31 is pressed against the outer wall of the turntable 2 due to the elastic restoring force of the second elastic member 32. When the turntable 2 is rotated until any insertion slot 21 is directly opposite the locking handle 31 along the X-axis, the elastic restoring force of the second elastic member 32 drives the locking handle 3131 to move along the X-axis, causing the locking handle 31 to be inserted into the insertion slot 21, switching from the unlocked position to the locked position.

[0070] In this embodiment, the second elastic member 32 is a spring.

[0071] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A base device suitable for a child safety seat, characterized in that: include: A base shell (1) and a turntable (2), wherein the turntable (2) is rotatably arranged on the base shell (1), and a plurality of insertion slots (21) are provided on the circumference of the turntable (2); A locking assembly (3) is slidably disposed in the base shell (1) along the X-axis, the locking assembly (3) having a locking position for plugging into the plug-in slot (21) and an unlocking position away from the plug-in slot (21), and the locking assembly (3) slides along the X-axis to switch between the locking position and the unlocking position; A memory structure (4) is fixedly arranged on the base shell (1), and the memory structure (4) has a locking member (41) that can be slidably arranged along the Z axis. When the locking assembly (3) is switched to the unlocked position, part of the locking member (41) can be clamped in the locking assembly (3) to keep the locking assembly (3) in the unlocked position. When the turntable (2) rotates, the locking member (41) can be pressed downward along the Z axis to disengage the locking member (41) from the locking assembly (3). When the turntable (2) rotates until any of the plug-in slots (21) faces the locking handle (31) along the X axis, the locking handle (31) is slidably inserted into the plug-in slot (21) to switch to the locked position.

2. The base device for a child safety seat according to claim 1, characterized in that: The base shell (1) has a relief opening (11), and the locking member (41) has a protrusion (411). The protrusion (411) is opposite to the relief opening (11), and along the Z axis, the end surface of the protrusion (411) is higher than the end surface of the base shell (1). When the locking assembly (3) is in the locked position, the relief opening (11) is opposite to the plug-in slot (21). When the locking member (41) is in the unlocked position, the rotating disk (2) can be rotated to press the protrusion (411) downward along the Z axis.

3. The base device for a child safety seat according to claim 2, characterized in that: Along the rotation direction of the turntable (2), both sides of the protrusion (411) are provided with guiding inclined surfaces (4111), and the guiding inclined surfaces (4111) are used to guide the rotation of the turntable (2).

4. The base device for a child safety seat according to claim 3, characterized in that: The locking member (41) includes a braking portion (412), and the braking portion (412) is located on a side of the protruding portion (411) away from the turntable (2) along the X-axis. The locking assembly (3) includes a locking handle (31), and the locking handle (31) has a plug-in portion (311), and the plug-in portion (311) can be plugged into the plug-in slot (21). A locking slot (3111) and an avoidance slot (3112) are provided at intervals along the X-axis on one side of the plug-in portion (311) facing the locking assembly (3). When the fixed component (3) is located in the locking position, the braking part (412) is located in the avoidance groove (3112); when the locking component (3) slides along the X-axis to switch to the unlocking position, the plug-in part (311) can press the braking part (412) downward along the Z-axis to make the braking part (412) escape from the avoidance groove (3112), until the locking groove (3111) is facing the braking part (412), and the braking part (412) is reset upward along the Z-axis to be locked in the locking groove (3111).

5. The base device for a child safety seat according to claim 4, characterized in that: Along the X-axis, one side of the braking portion (412) has a guiding slope (4121), and the guiding slope (4121) is used to guide the plug-in portion (311) to slide along the X-axis.

6. The base device for a child safety seat according to claim 1, characterized in that: The memory structure (4) further comprises: A mounting member (42) is fixed to the base shell (1), the mounting member (42) having a receiving groove (421) extending along the Z axis, and the locking member (41) is slidably disposed in the receiving groove (421) along the Z axis; The first elastic member (43) extends along the Z axis, one end of the first elastic member (43) is connected to or abuts against the accommodating groove (421), and the other end of the first elastic member (43) is connected to or abuts against the mounting member (42), and the first elastic member (43) is used to drive the locking member (41) to move and reset along the Z axis.

7. The base device for a child safety seat according to claim 6, characterized in that: The memory structure (4) further comprises: The limiting member (44) comprises a connecting section and a limiting portion, wherein the connecting section is inserted into the mounting member (42) from the bottom of the mounting member (42) along the Z axis and is threadedly connected to the locking member (41), and the limiting portion is abutted against the bottom of the mounting member (42). The limiting member (44) is used to limit the locking member (41) to an extreme position of upward movement along the Z axis.

8. The base device for a child safety seat according to claim 4, characterized in that: The base device suitable for the child safety seat also includes: A limiting component is arranged in the base shell (1); when the locking component (3) is located at the locking position, the locking component (3) abuts against the limiting component along the X-axis.

9. The base device for a child safety seat according to claim 8, characterized in that: The locking handle (31) further comprises a handle portion (312), the plug portion (311) and the handle portion (312) are arranged in a T-shape, and the connection between the plug portion (311) and the handle portion (312) can abut against the limiting assembly along the X-axis.

10. The base device for a child safety seat according to claim 9, characterized in that: The locking assembly (3) further includes a second elastic member (32), the second elastic member (32) extending along the X-axis, one end of the second elastic member (32) connected to the handle portion (312), and the other end of the second elastic member (32) connected to the base shell (1), and the second elastic member (32) is used to drive the locking handle (31) to slide along the X-axis and be inserted into the insertion slot (21).

Images