Installation locking base and child safety seat

Abstract

The invention relates to the field of seat bases, and discloses an installation locking base and a child safety seat, and the key points of the technical scheme are that the installation locking base comprises a base body, and the base body is provided with supporting legs and connecting lock catches; the cross beam is arranged in the base body, and a sliding rail is connected to the cross beam in a sliding mode; in the rotating process of the child safety seat, front-back sliding adjustment can be achieved through synchronous linkage, and when the child safety seat rotates to the certain degree, the child is turned to face a backrest of a back row seat of an automobile, and the seat moves forwards to the optimal operation posture of maximum distance and nursing at the same time. According to the design, a more direct operation space is provided for parents, the child can be conveniently held, the posture is conveniently arranged or the safety belt is conveniently adjusted, and the problem that operation of the parents is limited after the child seat is rotated in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of seat bases, and particularly relates to a mounting and locking base and a child safety seat. Background Art

[0002] A child safety seat is an important device to ensure the safety of children during vehicle rides. It is usually fixed to a vehicle seat through a locking base and can be quickly installed through a seat belt or an ISOFIX interface. Currently, most child safety seats on the market generally have a certain angle adjustment function to adapt to the sitting postures of children of different ages and the operation needs of parents.

[0003] With the increasing attention of users to convenience and humanization, some child safety seats in the prior art have been designed with a rotating structure. This rotating structure is usually arranged between the mounting and locking base and the seat, enabling the child safety seat to switch angles during use. For example, it can rotate from a state facing the front of the vehicle to the side to facilitate parents to pick up and hold the child, or rotate to face the rear of the vehicle to meet the safety sitting requirements of different age stages. Through the application of the rotating mechanism, parents can select a more suitable installation and sitting direction according to needs, improving the convenience of children getting in and out of the vehicle.

[0004] However, the rotating structures in the prior art have obvious limitations. The rotating mechanisms of most current child safety seats only have a single angle adjustment function, that is, the seat can rotate around a vertical axis, but during the rotation process, the front-back distance between the safety seat and the vehicle seat basically remains unchanged. This structural design has significant defects when the child safety seat faces the vehicle seat backrest.

[0005] When the child safety seat rotates to a position facing the vehicle seat backrest, since the rotation center is usually set near the bottom of the seat and the seat body is relatively thick, the space between the front end of the safety seat and the vehicle seat backrest is very narrow. It is difficult for parents to conveniently take care of the child or perform operations, such as adjusting the seat belt, soothing the child, or performing daily care. Especially for young infants, this lack of space will bring great inconvenience to parents in use. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a mounting and locking base and a child safety seat, aiming to alleviate the above problems to at least a certain extent.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A mounting and locking base, comprising: A base body, on which support feet and connection lock catches are provided; A cross beam disposed inside the base body, on which a slide rail is slidably connected; A rotating base provided on the slide rail, the rotating base being rotatable on the slide rail, and a seat fixing member is connected to the rotating base for connecting a safety seat; A locking portion provided between the base body and the cross beam for locking the position of the slide rail and the angle of the rotating base; A connecting lever provided on the base body to unlock the locking of the slide rail and the rotating base by the locking portion when it slides; An adjusting member provided between the connecting lever and the rotating base for rotating the angle of the rotating base when the connecting lever slides; Wherein, the adjusting member can move the position of the rotating base when rotating the rotating base to a predetermined angle.

[0008] Preferably, a connecting chute is formed on the slide rail, and the rotating base is fitted in the connecting chute.

[0009] Preferably, a connecting opening is formed on the base body, the connecting lever is slidably connected in the connecting opening, a fixing lever is fixed in the connecting opening, an adjusting frame is rotatably connected to the fixing lever, and the bottom of the adjusting frame is slidably connected to a connecting frame rotatably connected to the connecting lever.

[0010] Preferably, the locking portion includes a locking frame slidably connected to the bottom of the cross beam, a spring a is connected between the locking frame and the cross beam, a wedge block a is connected to the locking frame, a wedge block b in contact with the wedge block a is connected to the connecting lever, a connecting support rod is connected to the locking frame, a locking table is slidably connected to the connecting support rod, the locking table extends into the interior of the rotating base and is rotatably matched with the rotating base, a locking boss a is connected to the top of the locking table, and a plurality of locking grooves a adapted to the locking boss a are formed on the rotating base.

[0011] Preferably, the locking portion further includes a locking boss b connected to the locking frame, and a locking groove b adapted to the locking boss b is formed at the bottom of the slide rail.

[0012] Preferably, the adjusting member includes a gear a connected to the rotating base, a limiting support rod is connected to the slide rail, a gear b is rotatably connected to the limiting support rod, a connecting shaft is fixed to the connecting lever, a connecting rod is rotatably connected to the connecting shaft, a push bar is slidably connected to the base body, the other end of the connecting rod is rotatably connected to the push bar, a spring b is connected between the push bar and the base body, a guiding cylinder is rotatably connected to the base body, a straight section opening is formed in the guiding cylinder, a spiral opening is formed at the end of the straight section opening, an end of the push bar is connected with a guide rod cooperating with the straight section opening, and a chain transmission mechanism is arranged between the guiding cylinder and the gear b.

[0013] Preferably, the chain transmission mechanism includes a sprocket a rotatably connected to the bottom of the guiding cylinder, a ratchet mechanism a is arranged between the sprocket a and the guiding cylinder, a sprocket b is connected to the gear b, an elastic telescopic frame is connected to the base body, a tensioning wheel is rotatably connected to the elastic telescopic frame, and a transmission chain is commonly sleeved between the sprocket a, the sprocket b and the tensioning wheel.

[0014] Preferably, when the rotating base rotates to a preset angle a, the rotating base moves a predetermined distance a away from the backrest of the vehicle seat, and when the rotating base rotates to a preset angle b, the rotating base moves a predetermined distance b away from the backrest of the vehicle seat; The adjusting member further includes an adjusting ring rotatably connected to the base body, the adjusting ring has a concave portion and a convex portion, a push rod is connected to the bottom of the locking frame, the push rod extends into the concave portion, a rack is connected to the connecting lever, a gear c meshing with the rack is connected to the adjusting ring, and a ratchet mechanism b is arranged between the gear c and the adjusting ring.

[0015] Preferably, a spring c is connected between the slide rail and the base body.

[0016] A child safety seat includes an installation and locking base as described in any one of the above, and further includes a seat body installed on the base body. In summary, the present invention mainly has the following beneficial effects: This installation and locking base can realize the efficient adjustment of the child safety seat, and the overall structure is stable. The child safety seat is close to the backrest of the vehicle seat in the initial state, and the space in front of the child is large, so that parents can conveniently adjust the seat belt for the child, pick up the child or perform daily care operations when sitting in the back row, significantly improving the operation convenience of parents.

[0017] This technical solution is designed as a circular rotation structure. Through progressive rotation of degrees each time, it effectively avoids the spatial interference risks and operational inconsistencies caused by a one-time large-angle rotation. The use of degree rotation not only allows parents to gradually adjust the seat orientation according to the child's condition, but also better conforms to the parents' natural operating habits within the limited space of the car. This design fully considers the actual needs of parents who need to care for their children sideways while sitting in the back seat of the car. Parents can easily complete the seat angle adjustment without significantly adjusting their body posture, improving the safety of the adjustment process.

[0018] During the rotation process, the child safety seat can be synchronized and adjusted to slide forward and backward. When rotated to the maximum degree, the child is facing the rear seat backrest of the car, and the seat moves forward to the maximum distance, achieving the optimal operating posture for care. This design provides parents with more direct operation space, making it easier to hold the child, adjust the posture, or adjust the seat belt, improving the problem of limited parental operation after the child seat is rotated in the existing technology.

[0019] The entire adjustment process involves a single slide of the connecting lever, which continuously unlocks, rotates, slides, synchronizes, and automatically resets the seat. This eliminates the need for cumbersome multi-step switching, ensuring a smooth and continuous operation. Parents can flexibly adjust the child safety seat's orientation and position in stages based on their child's needs. This natural operation significantly improves the child safety seat's ease of use and vehicle space efficiency.

[0020] In summary, the present invention takes into account both the convenience of parental care and the rationality of the in-car layout, and the overall structural design is reasonable. Especially when the seat is rotated to the rear-facing position facing the car seat back, the forward movement function can reserve sufficient operating space for parents, thereby improving the comfort and convenience of using the safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the base body of the present invention; Figure 3 is another schematic diagram of the base body structure of the present invention; Figure 4 is another schematic diagram of the base body structure of the present invention; Figure 5 It is a cross-sectional schematic diagram of the base body structure of the present invention; Figure 6 yes Figure 5 A magnified schematic diagram of the local structure at point A in the middle; Figure 7 It is a schematic structural diagram of the regulating component of the present invention; Figure 8 It is a schematic structural diagram of the guide cylinder of the present invention; Figure 9 is a schematic structural diagram of the ratchet mechanism a of the present invention; Figure 10 is a schematic structural diagram of the locking part of the present invention; Figure 11 is another schematic diagram of the structure of the locking part of the present invention; Figure 12 is a schematic structural diagram of the adjusting frame of the present invention; Figure 13 is a schematic structural diagram of the adjusting ring of the present invention; Figure 14 is a schematic structural diagram of the ratchet mechanism b of the present invention.

[0022] Reference numerals: 100, base body; 101, support feet; 102, connecting lock; 103, cross beam; 104, slide rail; 105, rotating base; 106, seat fixing member; 107, connecting lever; 108, connecting chute; 109, seat body; 200, connecting opening; 201, fixing lever; 202, adjusting frame; 203, connecting frame; 300, locking frame; 301, spring a; 302, wedge block a; 303, wedge block b; 304, connecting support rod; 305, locking table; 306, locking boss a; 307, locking groove a; 308, locking boss b; 309, locking groove b; 400, gear a; 401, limiting support rod; 402, gear b; 403, connecting shaft; 404, connecting rod; 405, push bar; 406, spring b; 407, guide cylinder; 408, straight section port; 409, spiral port; 410, guide rod; 411, sprocket a; 412, ratchet mechanism a; 413, sprocket b; 414, elastic telescopic frame; 415, tensioning wheel; 416, drive chain; 500, adjusting ring; 501, recessed part; 502, protruding part; 503, push rod; 504, rack; 505, gear c; 506, ratchet mechanism b; 507, spring c. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1-14This embodiment provides an installation and locking base, including a base body 100, a supporting foot 101, a connecting lock 102, a beam 103, a slide rail 104, a rotating base 105, a seat fixing part 106, a locking part, a connecting lever 107 and an adjustment part.

[0025] The base body 100 is designed to be placed on a rear seat of a vehicle. Support legs 101 are disposed below the base body 100 and rest on the vehicle floor, providing stable support for the base. A connecting buckle 102 is disposed on one side of the base body 100 and is designed to connect to a safety seat interface (e.g., an ISOFIX interface) on the rear seat of the vehicle, securely securing the base body 100 to the vehicle seat.

[0026] The crossbeam 103 is disposed inside the base body 100 , and its length extends along the front-rear direction of the base body 100 . The slide rail 104 is slidably connected to the crossbeam 103 , and can slide on the crossbeam 103 along the front-rear direction of the base body 100 .

[0027] The rotating base 105 is mounted on the slide rails 104. The rotating base 105 can rotate on the slide rails 104 and can slide along the front-to-back direction of the base body 100 along with the slide rails 104. A seat fixing member 106 is provided above the rotating base 105. The seat fixing member 106 is used to connect with the child safety seat and can fix the child safety seat to the rotating base 105.

[0028] A locking portion is provided between the base body 100 and the crossbeam 103. The locking portion is used to simultaneously lock the front-to-back position of the slide rail 104 and the rotation angle of the rotating base 105. The locking portion prevents the slide rail 104 and the rotating base 105 from moving or rotating when not in an adjusted state, ensuring that the child safety seat remains stable during riding.

[0029] A connecting lever 107 is provided on the base body 100, and the connecting lever 107 can slide on the base body 100. When the user pushes the connecting lever 107, the locking state of the position of the slide rail 104 and the angle of the rotating base 105 can be released, and the adjustment mode is entered.

[0030] An adjustment component is provided between the connecting lever 107 and the rotating base 105. The adjustment component is used to drive the rotating base 105 to rotate when the connecting lever 107 slides. Furthermore, the adjustment component can also drive the rotating base 105 to slide synchronously along the slide rail 104 in the front-to-back direction of the base body 100 during the rotating process of the rotating base 105, thereby achieving automatic coordinated adjustment of the rotation angle and the front-to-back position.

[0031] In actual use, when the rotating base 105 rotates to a preset angle a, the adjustment component will drive the rotating base 105 away from the car seat back to a predetermined distance a. When the rotating base 105 continues to rotate to a preset angle b, the rotating base 105 will also move to the predetermined distance b, optimizing the interior space layout of the vehicle.

[0032] With this setup, the support feet 101 on the base body 100 form a stable support against the vehicle floor, and the connecting buckle 102 securely connects to the vehicle seat interface (such as the ISOFIX interface), thereby ensuring that the base body 100 is securely installed on the vehicle's rear seat. The child safety seat is then secured to the rotating base 105 via the seat anchor 106, ensuring the overall stability of the child safety seat and the mounting and locking base.

[0033] In the initial position, the child safety seat backrest faces away from the car seat backrest, the swivel base 105 is at its initial angle, and the distance between the safety seat and the car seat backrest is at its natural initial position during installation. At this point, the safety seat is relatively close to the car seat backrest, leaving more space in front of the child, making it easier for parents to adjust the seat belt, hold the child, or perform other care operations, significantly improving operational convenience for parents.

[0034] When the user needs to adjust the orientation of the child safety seat, they push the connecting lever 107 on the base body 100. As the connecting lever 107 slides, the locking mechanism that locks the position of the slide rail 104 and the angle of the rotating base 105 is released, allowing the slide rail 104 and rotating base 105 to be adjusted. As the connecting lever 107 continues to slide, the adjustment mechanism activates, driving the rotating base 105 to rotate.

[0035] This technical solution is designed as a cyclic rotation structure, with each rotation angle of 60 degrees. Through progressive rotation of 60 degrees, reasonable segmented adjustment can be achieved within the limited space inside the car, which not only makes it easier for parents to gradually adjust the seat direction, but also avoids the safety hazards caused by instantaneous rotation of too fast or too large an angle.

[0036] Parents often sit sideways in the back seat of a car to care for their children. If the rotation is too large, parents will need to drastically adjust their posture all at once, resulting in inconsistent operation and a risk of bumps. By setting the rotation to 60 degrees, parents can flexibly, continuously, and stagedly adjust the child safety seat's orientation based on the child's condition, ensuring both comfort and safety in the car.

[0037] When the user pushes the connecting lever 107, the locking portion is first released to lock the position of the slide rail 104 and the angle of the rotating base 105. As the connecting lever 107 continues to slide, the adjusting component starts to move, driving the rotating base 105 to rotate.

[0038] Continue to rotate. When the rotating base 105 rotates to 180 degrees, the safety seat moves to the preset distance b, reaching the maximum position of the seat moving forward. At this time, the orientation of the child has changed, and the child faces the backrest of the car rear seat. This state is suitable for parents to pick up the child, take care of the child, or adjust the seat belt. The distance between the child and the car seat backrest is the largest, and the overall orientation of the child is more convenient for parents to operate laterally in the car rear. In this position, the child safety seat has fully moved inward into the carriage, providing a more direct operating posture for parents, suitable for parents to take care of the child face to face, adjust the child's state, or perform daily care.

[0039] Through the design of this technical solution, the user can complete a series of actions such as unlocking, rotating, sliding, synchronous adjustment, and automatic reset during a single sliding connection of the lever 107. The entire operation process is smooth and coherent. Parents can flexibly adjust the seat orientation and position in segments according to the child's state on the rear seat. The adjustment process conforms to the human operation habit, avoiding problems such as cramped space and inconvenient operation.

[0040] In this embodiment, a connection chute 108 is provided on the slide rail 104, and the rotating base 105 is fitted in the connection chute 108. Through the cooperation with the connection chute 108, the rotating base 105 can rotate on the slide rail 104.

[0041] Through the above settings, the connection chute 108 is used to limit the position of the rotating base 105, and the rotating base 105 can rotate on the slide rail 104 to adjust the angle.

[0042] In this embodiment, a connection opening 200 is provided on the base body 100 of the installation locking base. The connection opening 200 extends along the length direction of the base body 100 for the sliding connection of the connection lever 107. The connection lever 107 passes through the connection opening 200, and the other end thereof cooperates with the guiding structure of the base body 100 and can slide along the direction of the connection opening 200. A manual operation part is provided at the outer end of the connection lever 107, which is convenient for parents to push or pull.

[0043] At the internal position of the connection opening 200, a fixed lever 201 is fixedly installed. The adjusting frame 202 is rotatably connected to the fixed lever 201 and can rotate around the rotating shaft of the fixed lever 201. A connecting frame 203 is slidably connected to the lower end of the adjusting frame 202, and the other end of the connecting frame 203 is rotatably connected to the connection lever 107, forming a set of linkage lever systems among the connection lever 107, the adjusting frame 202, and the connecting frame 203.

[0044] With the above settings, when a parent needs to adjust the angle of the child safety seat, they can directly manually push or pull the adjusting frame 202. The adjusting frame 202 rotates around the connection point with the fixed lever 201 as the rotation center. During this process, the sliding connection relationship between the bottom of the adjusting frame 202 and the connecting frame 203 changes in position, and the rotational movement of the adjusting frame 202 drives the bottom of the connecting frame 203 to displace horizontally.

[0045] Since one end of the connecting frame 203 is rotatably connected to the connecting lever 107, the rotation of the adjusting frame 202 will drive the connecting lever 107 to slide along the direction of the connecting opening 200 through the push of the connecting frame 203. During the entire transmission process, the vertical height of the connecting lever 107 remains unchanged, and it only slides horizontally within the connecting opening 200.

[0046] By reasonably utilizing the lever principle of the adjusting frame 202, a small force can drive a large displacement. Parents only need to apply a relatively small pushing or pulling force to the adjusting frame 202, and they can easily drive the sliding of the connecting lever 107 through lever transmission, reducing the force required for operation and significantly improving the operational convenience during the angle adjustment of the child safety seat.

[0047] In this embodiment, the locking portion includes a locking frame 300 slidably connected to the bottom of the cross beam 103. The locking frame 300 can slide vertically along a guiding structure, and a spring a301 is connected between the locking frame 300 and the cross beam 103. The spring a301 is used to provide a restoring force for the locking frame 300. When the locking frame 300 is not affected by an external force, the spring a301 always pushes the locking frame 300 upward to the locked state.

[0048] A wedge block a302 is connected to the locking frame 300, and a wedge block b303 in contact with the wedge block a302 is provided on the connecting lever 107. The wedge block a302 and the wedge block b303 are oppositely arranged, and the two are in an inclined plane mating structure. When the connecting lever 107 slides, the wedge block b303 will press the wedge block a302 and push the locking frame 300 to slide downward vertically.

[0049] The top of the locking frame 300 is connected with a locking platform 305 through a connecting support rod 304. The locking platform 305 is slidably connected to the connecting support rod 304, that is, the locking platform 305 can slide horizontally on the connecting support rod 304. The locking platform 305 extends upward into the rotating base 105. A locking boss a306 is provided on the top of the locking platform 305, and a plurality of locking grooves a307 matching the locking boss a306 are formed on the rotating base 105 for locking the angular position of the rotating base 105.

[0050] With the above settings, the locking frame 300 is vertically slidably mounted on the bottom of the cross beam 103 through the guiding structure, and is always in an upward pushing state under the action of the spring a301, ensuring that the locking frame 300 pushes the locking table 305 upward in the initial state, so that the locking boss a306 at the top of the locking table 305 is embedded in the locking groove a307 on the rotating base 105, thereby realizing reliable locking of the rotating base 105, preventing the safety seat from rotating unexpectedly during use, and ensuring the safety of children during riding.

[0051] When the parent needs to adjust the seat angle, pushing the connecting lever 107 causes it to slide. The wedge block b303 on the connecting lever 107 gradually contacts and presses the wedge block a302 on the side of the locking frame 300. Since the wedge block a302 and the wedge block b303 adopt an inclined plane mating structure, as the connecting lever 107 continues to slide, the wedge block b303 applies a gradually increasing vertical downward pressure to the locking frame 300 along the inclined plane. The locking frame 300 overcomes the elastic force of the spring a301 and slides downward in the vertical direction under the continuous pressing of the wedge block b303, driving the entire connecting rod 304 to move downward, and further driving the locking table 305 slidably connected to the connecting rod 304 to move downward synchronously, so that the locking boss a306 of the locking table 305 gradually leaves the locking groove a307 on the rotating base 105, completing the unlocking action of the rotating base 105, and the parent can smoothly adjust the angle of the safety seat.

[0052] During the entire unlocking process, the operation is labor-saving through the inclined plane sliding structure of the wedge block. The parent only needs to apply a small sliding force to easily complete the unlocking, which has the technical advantages of being user-friendly and having a low operation load. And when the locking frame 300 moves downward, the locking table 305 has the ability to slide horizontally on the connecting rod 304. This structural design ensures that during the rotation of the rotating base 105, the locking table 305 can freely slide on the connecting rod 304, avoiding interference or action conflicts due to subsequent changes in the position of the rotating base 105, and ensuring the smooth and reliable linkage process of the entire mechanism.

[0053] When the parent resets the connecting lever 107, the wedge block b303 immediately releases the pressure on the wedge block a302. The restoring force provided by the spring a301 immediately pushes the locking frame 300 back to the initial position. The connecting rod 304 moves upward as a whole with the locking frame 300, driving the locking table 305 back to the locking position again. The locking boss a306 is accurately embedded in the locking groove a307 on the rotating base 105 again, realizing automatic locking of the newly adjusted angular position. The entire process has smooth actions, stable structure, safe locking, and the parent can quickly complete a series of operations of unlocking, adjusting, and locking with one hand, significantly improving the operation convenience and safety reliability of the children's safety seat.

[0054] In this embodiment, the locking part also includes a locking boss b308 connected to the locking frame 300, and a locking groove b309 adapted to the locking boss b308 is provided at the bottom of the slide rail 104. When the locking frame 300 is in the pushed-up state, the locking boss b308 is embedded in the locking groove b309 to lock the position of the slide rail 104.

[0055] Through the above setting, a locking boss b308 is provided on the locking frame 300, and the locking boss b308 is adapted to the locking groove b309 opened at the bottom of the slide rail 104. When the locking frame 300 is in an upward push state under the action of the spring a301, the locking boss b308 is embedded in the locking groove b309, thereby realizing the locking of the position of the slide rail 104. When the parent pushes the connecting lever 107 to slide, the wedge block b303 on the connecting lever 107 presses the wedge block a302 on the locking frame 300. Through the inclined surface of the wedge block, the locking frame 300 slides downward under the squeezing force of the wedge block b303, and the locking boss b308 moves downward synchronously with the locking frame 300 and disengages from the locking groove b309 at the bottom of the slide rail 104, completing the unlocking operation of the slide rail 104. At this time, the slide rail 104 is in a sliding state. After adjusting the seat position and resetting the connecting lever 107, the locking frame 300 is pushed back to the initial position under the resetting action of the spring a301, and the locking boss b308 is re-embedded in the locking groove b309, quickly locking the slide rail 104 in the new position.

[0056] In this embodiment, the adjusting component includes a gear a400 installed at the lower part of the rotating base 105, a limiting support rod 401 is installed on the slide rail 104, and a second gear is provided on the limiting support rod 401. The first gear and the second gear are engaged with each other for transmitting rotational power.

[0057] A connecting shaft 403 is fixedly mounted on one side of the connecting lever 107. The connecting shaft 403 can move synchronously with the sliding of the connecting lever 107. The connecting shaft 403 is rotatably connected to a connecting rod 404 via a rotating shaft. The rear end of the connecting rod 404 is rotatably connected to a push bar 405 slidably mounted on the base body 100. The push bar 405 can slide up and down vertically within the base body 100. A spring b406 is installed between the bottom of the push bar 405 and the base body 100 to elastically reset the push bar 405 after the push bar 405 has completed its movement.

[0058] The top of the push bar 405 is provided with a guide rod 410, which is inserted into a guide cylinder 407 mounted on the base body 100. The guide cylinder 407 is a shaft-type installation and can rotate around its axis. The guide cylinder 407 is connected to the gear a400 through a chain transmission mechanism.

[0059] The side wall of the guide cylinder 407 is axially provided with a guide groove for the guide rod 410 to slide through. The guide groove includes a front straight section and a rear spiral curve section. When the push bar 405 moves upward, the guide rod 410 first freely slides along the straight section of the guide groove. After continuous pushing, the guide rod 410 enters the spiral section of the guide groove. By the sliding of the guide rod 410 along the spiral curve, the guide cylinder 407 is driven to rotate.

[0060] Through the above settings, during the process of the parent pushing the connecting lever 107 to slide, the connecting lever 107 will drive the connecting shaft 403 fixed thereon to slide synchronously. When the connecting shaft 403 slides, it will push the connecting rod 404 rotatably connected thereto to move. The other end of the connecting rod 404 is rotatably connected to the push bar 405 slidably installed in the base body 100. With the continuous pushing of the connecting rod 404, the push bar 405 slides upward along the slideway in the base body 100. The top end of the push bar 405 is provided with a guide rod 410, and the guide rod 410 is inserted into the guide cylinder 407 arranged in the base body 100.

[0061] When the push bar 405 starts to move upward, the guide rod 410 first slides within the straight section opening in the guide cylinder 407. During this stage, the movement of the guide rod 410 will not immediately trigger the rotation of the guide cylinder 407. The purpose of designing this straight section opening is to effectively avoid the instantaneous movement of the locking frame 300 still in the unlocking stage during the initial sliding process of the connecting lever 107, prevent the unlocking and rotation actions from occurring simultaneously, which may cause structural interference or action conflict, ensure that the rotation action is started only after the locking frame 300 is completely disengaged, ensure that the action sequence of the mechanism is reasonable and the movement chain is coordinated, and has good structural compatibility and action safety.

[0062] When the push bar 405 continues to slide upward, the guide rod 410 gradually slides to the end of the straight section opening of the guide cylinder 407 and enters the rear spiral opening 409. The guide rod 410 and the spiral opening 409 form a spiral transmission fit during this stage. The continuous upward movement of the push bar 405 forces the guide cylinder 407 to rotate along its rotation axis through the movement track of the guide rod 410 along the spiral opening 409. During the rotation of the guide cylinder 407, the arranged chain transmission mechanism can drive the gear b402 to rotate synchronously. The gear b402 meshes with the gear a400 below the rotating base 105. The rotation of the gear b402 further drives the gear a400 to rotate, thereby driving the rotating base 105 to adjust the angle.

[0063] During this process, the parent only needs to continuously push the connecting lever 107 to complete the unlocking and seat rotation operations, which has the technical effects of simplifying and labor-saving the adjustment steps.

[0064] The spring b406 provided below the pushing bar 405 can provide the restoring force of the pushing bar 405 after the parent resets the connecting lever 107, enabling the pushing bar 405, the guide rod 410, and the connecting rod 404 to automatically return to their original positions. The guiding cylinder 407 synchronously returns in the reverse direction through the transmission of the chain and the gear b402. The entire mechanism has a good automatic reset function, ensuring that it can return to the initial state after each operation and providing good preparation for subsequent actions.

[0065] In this embodiment, the chain drive mechanism includes a sprocket a411 provided at the bottom of the guiding cylinder 407, and a ratchet mechanism a412 is provided between the sprocket a411 and the guiding cylinder 407. The ratchet mechanism a412 is used to limit the one-way rotation of the sprocket a411.

[0066] A sprocket b413 is installed on the gear b402 on the slide rail 104. The sprocket a411 and the sprocket b413 are connected by a transmission chain 416 to achieve power transmission. To ensure the tension state of the transmission chain 416 during operation, an elastic telescopic frame 414 is installed on the base body 100. The fixed end of the elastic telescopic frame 414 is fixed to the base body 100, and its telescopic end is rotatably connected to a tensioning wheel 415 through a rotating shaft. The tension of the chain is automatically adjusted through the elastic force structure of the elastic telescopic frame 414 to prevent problems such as slipping or chain disengagement caused by chain slack during use.

[0067] Through the above settings, when the parent pushes the connecting lever 107 to slide, the pushing bar 405 is driven to move upward through the connecting rod 404 structure. The guide rod 410 slides into the straight section opening 408 of the guiding cylinder 407 and further enters the spiral opening 409. The guide rod 410 forms a spiral drive in the spiral opening 409. As the pushing bar 405 continues to move upward, the guiding cylinder 407 starts to rotate under the spiral action of the guide rod 410. The sprocket a411 at the bottom of the guiding cylinder 407 rotates synchronously with the guiding cylinder 407, driving the sprocket b413 and the gear b402 to rotate synchronously through the transmission chain 416, and then driving the engaged gear a400 to rotate, causing the rotating base 105 to adjust its angle. A ratchet mechanism a412 is provided between the sprocket a411 and the guiding cylinder 407, and the ratchet mechanism a412 does not affect the normal transmission of the sprocket a411 during the sliding process of the connecting lever 107.

[0068] When the parent subsequently resets the connecting lever 107 and the connecting lever 107, the connecting rod 404, the pushing bar 405, and the guide rod 410 automatically return to their original positions, the ratchet mechanism a412 will immediately limit the reverse rotation of the sprocket a411, thereby preventing the rotating base 105 from rotating uncontrollably in the reverse direction during the return process of the connecting rod 404 system, ensuring that the rotating base 105 can stably maintain the adjusted angular position and will not rotate passively due to the reset of the operating structure, having a good one-way limiting effect and motion safety.

[0069] Meanwhile, a tension pulley 415 supported by an elastic telescopic frame 414 is provided on the chain transmission path. The tension pulley 415 continuously presses against the surface of the transmission chain 416, and the dynamic tension of the chain is realized by using the elastic compensation ability of the elastic telescopic frame 414. Since the rotating base 105 not only needs to rotate but also generates forward and backward sliding in subsequent movements, the length of the chain will change slightly during the transmission process. The tension pulley 415 can compensate for the chain length deviation in real time, prevent the chain from being loose or too tight during rotation and sliding, ensure that the chain maintains a stable tension state throughout the movement process, and avoid slipping, tooth skipping or chain off phenomena.

[0070] In this embodiment, the adjusting member further includes an adjusting ring 500 rotatably mounted on the base body 100. A recessed portion 501 and a protruding portion 502 for positioning are provided on the circumference of the adjusting ring 500.

[0071] A push rod 503 is fixedly connected to the bottom of the locking frame 300. The push rod 503 extends in the vertical direction, and its lower end is inserted into the recessed portion 501 of the adjusting ring 500. The matching structure of the push rod 503 and the adjusting ring 500 is used to define the position state of the movement of the rotating base 105.

[0072] A rack 504 is provided on the connecting lever 107. A gear c505 meshing with the rack 504 is rotatably connected to the adjusting ring 500. A ratchet mechanism b506 is provided between the gear c505 and the adjusting ring 500. The ratchet mechanism b506 is used to limit the one-way rotation of the adjusting ring 500 and prevent the adjusting ring 500 from rotating in the reverse direction due to the reset of the link 404 mechanism.

[0073] A spring c507 is connected between the slide rail 104 and the base body 100. The spring c507 is used to provide an elastic restoring force for the automatic return of the slide rail 104.

[0074] Through the above settings, when the parent pushes the connecting lever 107 to slide, the rack 504 on the connecting lever 107 slides accordingly. The rack 504 drives the gear c505 meshing with it to rotate synchronously. The gear c505 drives the adjusting ring 500 to rotate in one direction through the ratchet mechanism b506. During the rotation of the adjusting ring 500, the push rod 503 connected to the lower part of the locking frame 300 is always inserted into the recessed portion 501 of the adjusting ring 500. As the adjusting ring 500 rotates, the position of the recessed portion 501 shifts, and the push rod 503 generates a translational movement synchronously under the drive of the rotation of the adjusting ring 500, thereby driving the locking frame 300 to move.

[0075] Since the upper structure of the locking frame 300 extends into the interior of the rotating base 105, when the locking frame 300 moves with the push rod 503, it will drive the entire rotating base 105 and the slide rail 104 to slide back and forth along the cross beam 103, realizing the position adjustment function of the child safety seat. Parents only need to push the connecting lever 107 to complete both the seat angle adjustment and the forward and backward sliding of the position at the same time.

[0076] Through the profile design of the adjusting ring 500, the displacement distance of the rotating base 105 can be preset, so that when the rotating base 105 rotates one gear, a fixed displacement and angle adjustment are generated. It is preferably designed to rotate 60 degrees each time to realize the cyclic progressive rotation adjustment function, ensuring that the seat performs segmented angle switching within the limited interior space of the vehicle and avoiding space interference and inconvenient operation caused by a large one-time rotation.

[0077] Specifically, in the initial state, the push rod 503 is in the recess 501, the backrest of the child safety seat corresponds to the backrest of the rear seat of the car, and the child faces the front of the car in a normal sitting position. As the parent continues to push the connecting lever 107, the adjusting ring 500 rotates, and the push rod 503 slides under the drive of the profile of the adjusting ring 500. When the adjusting ring 500 rotates to 60 degrees, the push rod 503 disengages from the recess 501 and enters the smooth section of the adjusting ring 500. At this time, the locking frame 300 begins to move forward along the cross beam 103 under the sliding action of the push rod 503, driving the entire rotating base 105 and the slide rail 104 to slide synchronously, and the safety seat gradually moves forward to the preset distance a, and the distance between the child seat and the rear seat backrest of the car increases, facilitating the parent to observe and care for the child laterally.

[0078] The parent continues to push the connecting lever 107, the adjusting ring 500 continues to rotate, the push rod 503 continues to slide along the smooth section, and the seat continues to move forward slowly. When the adjusting ring 500 rotates to 180 degrees, the push rod 503 contacts the protrusion 502 on the adjusting ring 500. At this time, the push rod 503 reaches the limit sliding position, and the child safety seat has moved forward to the preset distance b, that is, the maximum forward position of the seat, and the child's orientation has been completely adjusted to face the backrest of the rear seat of the car. This state is convenient for the parent to pick up the child face to face, adjust the seat belt or perform care operations. The profile design of the adjusting ring 500 realizes the full-process positioning and guiding of the seat from the initial locking, slow forward movement to the maximum forward movement through the continuous transition of the recess 501, the smooth section and the protrusion 502, ensuring that there are clear motion control nodes in each stage.

[0079] In addition, the spring c507 is used to provide the elastic reset force between the slide rail 104 and the rotating base 105, ensuring the complete action closed-loop of the cyclic rotation adjustment structure. The push rod 503 is initially located in the recess 501 of the adjustment ring 500. As the adjustment ring 500 continues to rotate, the push rod 503 slides along the contour of the adjustment ring 500, gradually disengages from the recess 501 and enters the smooth surface section. At this time, the spring c507 is stretched to generate potential energy. As the adjustment ring 500 continues to rotate to 180 degrees, the push rod 503 contacts the protrusion 502 of the adjustment ring 500, reaching the maximum forward movement distance b of the seat and achieving the maximum forward movement state of the seat. At this time, the spring c507 is in a stretched state, storing elastic energy.

[0080] The parent continues to push the connecting lever 107, and the adjustment ring 500 continues to rotate unidirectionally under the restriction of the ratchet mechanism b506. The push rod 503 continues to slide along the contour of the adjustment ring 500. The push rod 503 needs to return to the smooth surface end of the adjustment ring 500. The spring c507 releases elastic force during this process, actively driving the slide rail 104 and the rotating base 105 to slide backward, driving the overall retraction of the push rod 503 to complete the position reset.

[0081] A child safety seat includes any one of the above-mentioned installation locking bases, and further includes a seat body 109 installed on the base body 100.

[0082] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An installation locking base, characterized in that, Comprising: A base body, on which support feet and connection latches are provided; A cross beam arranged inside the base body, on which a slide rail is slidably connected; A rotating base arranged on the slide rail, which can rotate on the slide rail, and a seat fixing member is connected to the rotating base for connecting a safety seat; A locking part arranged between the base body and the cross beam for locking the position of the slide rail and the angle of the rotating base; A connecting lever arranged on the base body to unlock the locking of the slide rail and the rotating base by the locking part when it slides; An adjusting member arranged between the connecting lever and the rotating base for rotating the angle of the rotating base when the connecting lever slides; Wherein, the adjusting member can move the position of the rotating base when rotating the rotating base to a predetermined angle.

2. The mounting locking base according to claim 1, characterized in that A connecting chute is formed on the slide rail, and the rotating base is fitted in the connecting chute.

3. The mounting locking base according to claim 1, characterized in that, A connecting opening is formed on the base body, the connecting lever is slidably connected in the connecting opening, a fixed lever is fixed in the connecting opening, an adjusting frame is rotatably connected to the fixed lever, and the bottom of the adjusting frame is slidably connected to a connecting frame rotatably connected to the connecting lever.

4. The installation locking base according to claim 1, characterized in that, The locking part includes a locking frame slidably connected to the bottom of the cross beam, a spring a is connected between the locking frame and the cross beam, a wedge block a is connected to the locking frame, a wedge block b in contact with the wedge block a is connected to the connecting lever, a connecting support rod is connected to the locking frame, a locking table is slidably connected to the connecting support rod, the locking table extends into the interior of the rotating base and is rotatably matched with the rotating base, a locking boss a is connected to the top of the locking table, and a plurality of locking grooves a adapted to the locking boss a are formed on the rotating base.

5. The installation and locking base according to claim 4, characterized in that, The locking part further includes a locking boss b connected to the locking frame, and a locking groove b adapted to the locking boss b is formed at the bottom of the slide rail.

6. The installation locking base according to claim 1, wherein, The adjusting member includes a gear a connected to the rotating base, a limiting support rod is connected to the slide rail, a gear b is rotatably connected to the limiting support rod, a connecting shaft is fixed to the connecting lever, a connecting rod is rotatably connected to the connecting shaft, a push bar is slidably connected to the base body, the other end of the connecting rod is rotatably connected to the push bar, a spring b is connected between the push bar and the base body, a guiding cylinder is rotatably connected to the base body, a straight section opening is formed on the guiding cylinder, a spiral opening is formed at the end of the straight section opening, a guide rod adapted to the straight section opening is connected to the end of the push bar, and a chain transmission mechanism is arranged between the guiding cylinder and the gear b.

7. The installation and locking base according to claim 6, characterized in that The chain transmission mechanism includes a sprocket a rotatably connected to the bottom of the guiding cylinder, a ratchet mechanism a is arranged between the sprocket a and the guiding cylinder, a sprocket b is connected to the gear b, an elastic telescopic frame is connected to the base body, a tensioning wheel is rotatably connected to the elastic telescopic frame, and a transmission chain is jointly sleeved between the sprocket a, the sprocket b and the tensioning wheel.

8. The installation locking base according to claim 1, characterized in that, When the rotating base rotates to a preset angle a, the rotating base moves a predetermined distance a away from the car seat backrest. When the rotating base rotates to a preset angle b, the rotating base moves a predetermined distance b away from the car seat backrest; The adjusting member further includes an adjusting ring rotatably connected to the base body. The adjusting ring has a recessed portion and a protruding portion. A push rod is connected to the bottom of the locking frame. The push rod extends into the recessed portion. A rack is connected to the connecting lever. A gear c meshing with the rack is connected to the adjusting ring. A ratchet mechanism b is provided between the gear c and the adjusting ring.

9. The installation locking base according to claim 1, characterized in that, A spring c is connected between the slide rail and the base body.

10. A child safety seat, characterized in that, It includes a mounting and locking base according to any one of claims 1 to 9, and further includes a seat body mounted on the base body.

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