Split type child car seat

Abstract

The utility model provides a split type child car seat which comprises a base capable of being detachably connected with a car seat, a cabin capable of containing and fixing a child is arranged in the base, and a locking mechanism is arranged between the cabin and the base so that the cabin and the base can be assembled or separated. The split type design is adopted, and detachable assembly is achieved by arranging the locking mechanism between the base and the cabin. By means of the split type structure, when the interior of the cabin is dirty, the cabin can be detached from the base, the interior of the cabin can be conveniently cleaned, and the problems that due to the fact that a traditional integrated design is difficult to deeply clean, the sanitary condition is poor, and bacteria are prone to breeding are solved. Besides, due to the design of the split type seat, the size of the separated cabin and the base is smaller than that of an integrated child car seat, the cabin and the base can be conveniently and separately stored, and the problems that the integrated seat is large in size and cannot be detached, and consequently storage and carrying are inconvenient are solved.

Description

[Technical Field]

[0002] This utility model relates to the field of child car seat technology, and in particular to a split-type child car seat. [Background Technology]

[0004] With social development and the improvement of people's living standards, cars, as a common means of transportation, are being used more and more frequently in family travel, and the number of children traveling by car is also increasing, which has led to a continuous rise in the demand for child car seats.

[0005] Traditional child car seats mostly use a one-piece design. While this provides basic safety for children traveling in cars, it has gradually revealed some inconveniences in actual use. Firstly, the interior parts of one-piece child car seats, such as the seat cushion and backrest, are easily soiled by children. Due to the limitations of their overall structure, cleaning often only involves simple surface wiping, making it difficult to thoroughly clean the interior. Over time, this not only affects the hygiene of the seat but may also breed bacteria, which can adversely affect children's health. Secondly, one-piece child car seats are large and cannot be disassembled, making them inconvenient to store and transport. For example, they take up a lot of space in the car trunk, and their size also presents many obstacles when bringing them indoors for storage.

[0006] Given the various problems with traditional child car seats, there is an urgent need for a new type of child car seat that can solve the problems of inconvenient cleaning, difficult storage and transportation. [Utility Model Content]

[0008] The purpose of this utility model is to provide a split-type child car seat, which aims to solve the problems of inconvenient cleaning and difficult storage and transportation of existing child car seats.

[0009] This utility model is achieved through the following technical solution:

[0010] A split-type child car seat includes a base that can be detachably connected to a car seat, the base having a cabin for securing a child, and a locking mechanism between the cabin and the base for assembling or separating the two.

[0011] As described above, a split-type child car seat has a mounting position on the base for fixed connection of the locking mechanism. The locking mechanism includes a housing adapted to the mounting position, and a mounting cavity is formed between the housing and the mounting position. The mounting cavity is provided with a locking device for fixing or separating the seat from the base.

[0012] As described above, a split-type child car seat has a movable cavity on the housing that communicates with the mounting cavity. The locking device includes a locking wheel hinged to the inner wall of the movable cavity. The locking wheel has a locking groove, and the locking groove extends outward to be connected to an arc-shaped force-bearing end. The housing has a movable hole that communicates with the movable cavity, and the bottom of the cabin has a locking engagement end corresponding to the locking groove.

[0013] As described above, in a split-type child car seat, the locking wheel is provided with a limiting groove, and the base is fixed with a limiting shaft passing through the mounting cavity. When the seat and the base are assembled, the limiting shaft and the limiting groove form a snap-fit ​​engagement.

[0014] As described above, a split-type child car seat includes a locking mechanism comprising a limiting device located below the locking wheel. The limiting device includes hinged portions on both sides that are hinged to the housing. A limiting portion restricting the movement of the locking wheel is provided on one side perpendicular to the hinged portions. The locking wheel is provided with a first limiting groove and a second limiting groove that can be connected to the limiting portion.

[0015] As described above, in a split-type child car seat, the movement limiting device includes a reset connection part, the locking wheel is provided with a reset connection hole, and an elastic connector is provided between the reset connection part and the reset connection hole.

[0016] As described above, a split-type child car seat has an insertion mechanism between the base and the cabin, a locking mechanism located at the front of the base, and an insertion mechanism located behind the locking mechanism.

[0017] As described above, a split-type child car seat includes an insert mechanism comprising a mutually compatible insert portion and an insert interface, wherein the insert portion is disposed on one of the base and the cabin, and the insert interface is disposed on the other of the base and the cabin.

[0018] As described above, in a split-type child car seat, guide ribs are provided on the two side walls of the movable hole near the opening to guide the range of motion of the locking wheel.

[0019] As described above, a split-type child car seat has multiple connecting parts evenly distributed on the housing, and mounting holes corresponding to the connecting parts are provided on the mounting position.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] This utility model adopts a split design, including a base that can be detachably connected to the car seat and a child seat compartment for securing the child. A locking mechanism connects the two, allowing for assembly or separation. This split structure allows the child seat compartment to be detached from the base when areas such as the seat cushion and backrest become dirty, facilitating a more thorough cleaning. This avoids the problems of traditional one-piece designs, which only allow surface wiping and lack deep cleaning, leading to poor hygiene and bacterial growth. Furthermore, this split seat design results in a smaller volume for both the separate compartment and base compared to a one-piece child car seat, making them easier to store separately and solving the problems of bulky, non-separable one-piece seats that cause inconvenience in storage and transportation. [Attached Image Description]

[0023] To more clearly illustrate the technical solutions in the embodiments of the utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 3 ;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 4 ;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of this embodiment. Figure 5 ;

[0029] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the middle AA;

[0030] Figure 7 for Figure 6 Enlarged partial sectional view of the structure at point B in the assembled state of the base and the cockpit;

[0031] Figure 8 For the corresponding Figure 7 Enlarged partial sectional view of the structure when the base and the cabin are separated;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the base in this embodiment. Figure 1 ;

[0033] Figure 10This is a schematic diagram of the three-dimensional structure of the base in this embodiment. Figure 2 ;

[0034] Figure 11 This is a schematic diagram of the three-dimensional structure of the cockpit in this embodiment. Figure 1 ;

[0035] Figure 12 This is a schematic diagram of the three-dimensional structure of the base in this embodiment. Figure 2 ;

[0036] Figure 13 This is a three-dimensional structural diagram of the locking mechanism in this embodiment;

[0037] Figure 14 This is a cross-sectional view of the internal structure of the locking mechanism in this embodiment;

[0038] Figure 15 This is a three-dimensional structural diagram of the locking wheel in this embodiment;

[0039] Figure 16 This is a three-dimensional structural diagram of the motion limiting device in this embodiment.

Detailed Implementation Methods

[0041] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0042] Please see Figures 1 to 16 This embodiment provides a split-type child car seat, including a base 1 that can be detachably connected to a car seat. The base 1 has a cabin 2 for placing and fixing a child. A locking mechanism 3 is provided between the cabin 2 and the base 1 to allow the two to be assembled or separated.

[0043] In this embodiment, the base 1 is equipped with an installation interface that matches the car seat, allowing users to secure the child car seat in the standard seat position of the car. Specifically, the bottom of the base 1 may have an adjustable buckle device to adapt to the ISOFIX interface, LATCH system, or seat belt fixing method commonly found in most car models on the market. The cabin 2 is located inside the base 1, providing a safe and comfortable riding environment for children. The cabin 2 is equipped with conventional safety protection devices such as seat belts and headrests to ensure the safety of children during the ride. The cabin 2 may be designed with an ergonomic seat shape, surrounded by soft cushioning, which can well position and fix children, effectively protecting their bodies during vehicle movement and preventing injury from sudden braking, collisions, etc.

[0044] The locking mechanism 3 is located between the cabin 2 and the base 1. Since the cabin 2 and the base 1 can be separated or secured via the locking mechanism 3, during daily use, if the seat cushion, backrest, or other parts inside the cabin 2 become dirty, or if stains appear due to child use, the user can easily detach the cabin 2 from the base 1 for separate cleaning, such as direct washing or deep wiping. This avoids the difficulty of thoroughly cleaning the interior of traditional integrated child car seats, greatly improving cleaning convenience and extending the overall lifespan of the child car seat, ensuring it remains in a hygienic and good working condition. Furthermore, the locking mechanism 3 allows for the separation of the cabin 2 and the base 1 for separate storage or transport. Compared to large integrated child car seats, the separate structure is easier to place in spaces such as the car trunk, taking up less space, and is also convenient to carry indoors, improving flexibility and convenience. Furthermore, if either the base 1 or the cabin 2 is damaged due to prolonged use or an accident, only one needs to be replaced, rather than discarding the entire child car seat.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation, the base 1 is provided with a mounting position 11 for fixed connection of the locking mechanism 3. The locking mechanism 3 includes a housing 31 adapted to the mounting position 11. A mounting cavity 311 is formed between the housing 31 and the mounting position 11. A locking device 32 for fixing or separating the cabin 2 from the base 1 is provided in the mounting cavity 311.

[0046] In this embodiment, the front of the base 1 is provided with a mounting position 11. The mounting position 11 is integrated with the overall structure of the base 1 through processes such as mold integral molding. Its shape, size and internal structure are specifically designed to provide a stable and precise mounting base for the locking mechanism 3.

[0047] The housing 31 of the locking mechanism 3 is made of high-strength and tough engineering plastic material. Its shape matches the shape of the mounting position 11 and can fit tightly on the mounting position 11. During installation, the housing 31 can be firmly fixed to the mounting position 11 by conventional connection methods such as slot and buckle cooperation or simple screw tightening, to prevent loosening during use.

[0048] The mounting cavity 311 formed between the housing 31 and the mounting position 11 provides a space environment for the subsequent locking device 32 to be accommodated and operated. In actual use, the user can detach the cockpit 2 from the base 1 at any time for cleaning, maintenance or replacement of parts, without the need for any special tools, which is convenient and quick.

[0049] Specifically, the housing 31 is provided with a movable cavity 312 communicating with the mounting cavity 311. The locking device 32 includes a locking wheel 321 hinged to the inner wall of the movable cavity 312. The locking wheel 321 is provided with a locking groove 3211. The locking groove 3211 extends outward and is connected to an arc-shaped force-bearing end 3212. The housing 31 is provided with a movable hole 313 communicating with the movable cavity 312. The bottom of the cockpit 2 is provided with a locking engagement end 21 corresponding to the locking groove 3211. When the cockpit 2 is separated from the base 1, the arc-shaped force-bearing end 3212 is exposed in the movable hole 313. When the cockpit 2 is assembled with the base 1, the locking engagement end 21 abuts against the arc-shaped force-bearing end 3212 and causes the locking wheel 321 to rotate downward and slide into the locking groove 3211 along the arc-shaped force-bearing end 3212 to form a snap-fit ​​engagement.

[0050] In this embodiment, a movable cavity 312 is carefully constructed in a specific part of the housing 31. The design of the movable cavity 312 ensures communication with the mounting cavity 311, while its size and shape are determined based on factors such as the size and rotation range of the locking wheel 321. This provides sufficient and suitable space for the locking wheel 321 to rotate smoothly. The locking wheel 321 is hinged to the inner wall of the movable cavity 312 via a suitable hinge component such as a high-quality metal shaft or a high-strength wear-resistant plastic shaft, allowing it to rotate flexibly around the hinge point. The locking wheel 321 is made entirely of high-strength engineering plastic or metal with a certain degree of toughness to ensure that it will not easily deform or be damaged during long-term use, thus ensuring the reliability of its structure. The locking groove 3211 on the locking wheel 321 is precisely matched in shape and size to the locking engagement end 21 at the bottom of the cockpit 2, forming a tight and stable snap-fit ​​engagement. The arc-shaped force-bearing end 3212, which extends outward from the locking groove 3211, has its arc shape optimized through simulation and actual testing. It can not only smoothly abut and transmit force with the locking mating end 21, but also, during the assembly process, when the cockpit 2 gradually approaches the base 1, the locking mating end 21 and the arc-shaped force-bearing end 3212 can naturally and smoothly abut. Then, as the cockpit 2 continues to press down, the locking wheel 321 can smoothly rotate downward, guiding the locking mating end 21 to slide smoothly into the locking groove 3211 along the arc-shaped force-bearing end 3212, achieving a precise snap-fit ​​without the need for additional complex operations or large external forces, which greatly improves the convenience and efficiency of assembly.

[0051] The movable hole 313 on the housing 31 ensures that the arc-shaped force-bearing end 3212 can be smoothly exposed in the separated state, facilitating user observation for subsequent operations. In addition, the edges of the movable hole 313 are rounded to prevent scratching the user's hands or related tools during operation, further improving the safety and comfort during assembly or disassembly.

[0052] The locking end 21 at the bottom of the cabin 2 should preferably be a cylindrical structure made of high-strength engineering plastic or metal. During assembly, it can accurately slide into the locking groove 3211 along the arc-shaped force-bearing end 3212 to form a reliable snap-fit. During vehicle operation, even if affected by external forces such as bumps and vibrations, this stable snap-fit ​​can ensure that the cabin 2 is always firmly fixed on the base 1, thus ensuring the safety of children riding in the cabin.

[0053] Furthermore, as a preferred embodiment of this solution and not a limitation, the locking wheel 321 is provided with a limiting groove 3213, and the base 1 is fixedly provided with a limiting shaft 12 passing through the mounting cavity 311. When the cockpit 2 and the base 1 are in an assembled state, the limiting shaft 12 and the limiting groove 3213 form a snap-fit ​​engagement.

[0054] In this embodiment, the limiting shaft 12 is preferably a high-strength, rigid circular metal shaft, which is reliably fixed to the base 1. This can be achieved through an integral molding process during the manufacturing of the base 1, or by using robust connection methods such as welding or riveting, ensuring that it is firmly fixed to the base 1 and accurately passes through the mounting cavity 311, precisely positioned to engage with the bottom limiting groove 3213 of the locking wheel 321. The shape of the limiting groove 3213 should preferably match the outer contour of the limiting shaft 12, and can also be rectangular, dovetail-shaped, etc.

[0055] When the cockpit 2 and the base 1 are assembled, as the locking engagement end 21 at the bottom of the cockpit 2 slides into the locking groove 3211 along the arc-shaped force-bearing end 3212 of the locking wheel 321, the limiting shaft 12 will also accurately engage with the limiting groove 3213 at the bottom of the locking wheel 321, forming a snap-fit ​​engagement. This snap-fit ​​engagement effectively limits and constrains the locking wheel 321 from another dimension, restricting unnecessary displacement that may occur in all directions. Especially during vehicle operation, when facing complex working conditions such as bumps, sudden braking, and sharp turns, even if subjected to a large external impact, the locking wheel 321 can always remain in an accurate and stable position due to the coordinated limiting effect of the limiting shaft 12 and the limiting groove 3213. This makes the connection between the cockpit 2 and the base 1 more secure and reliable, greatly reducing the risk of separation between the cockpit 2 and the base 1 due to unexpected situations, and providing a higher level of safety for children. On the other hand, this limiting structure distributes some of the external force originally concentrated at the engagement point between the locking groove 3211 and the locking mating end 21, preventing excessive wear and deformation of this critical connection point due to long-term excessive force. This effectively protects the key components in the locking mechanism 3, thereby extending the service life of the entire locking mechanism 3 and the child car seat, reducing the frequency of repairs or replacements due to component damage, lowering usage costs, and improving the product's economy and practicality. It should be added that in actual use, when assembling the cabin 2 and the base 1, users do not need to pay extra attention to the engagement of the limiting shaft 12 and the limiting groove 3213. They will naturally and smoothly engage during the normal assembly process, making the entire process simple and convenient without adding any operational difficulty for the user.

[0056] Furthermore, as a preferred embodiment of this solution and not a limitation, the locking mechanism 3 includes a limiting device 33 disposed below the locking wheel 321. The limiting device 33 includes hinge portions 331 that are hinged to the housing 31 on both sides. A limiting portion 332 that restricts the movement of the locking wheel 321 is provided on one side perpendicular to the hinge portions 331. The locking wheel 321 is provided with a first limiting groove 3214 and a second limiting groove 3215 that can be connected to the limiting portion 332. A curved transition portion 3216 is provided between the first limiting groove 3214 and the second limiting groove 3215. When the cockpit 2 and the base 1 are in a separated state, the limiting portion 332 engages with the first limiting groove 3214. When the cockpit 2 and the base 1 are in an assembled state, the limiting portion 332 engages with the second limiting groove 3215.

[0057] In this embodiment, the hinge portion 331 of the motion limiting device 33 plays a key role in connection and rotational support. Specifically, a corresponding hinge hole is provided on the housing 31 to engage with the hinge portion 331, so that the motion limiting device 33 can rotate.

[0058] The limiting part 332 is provided perpendicular to the hinge part 331. It is a key structure that directly cooperates with the locking wheel 321. It has sufficient strength and rigidity to ensure that an effective limiting force can be applied to the locking wheel 321. Its shape is highly compatible with the first limiting groove 3214 and the second limiting groove 3215. For example, in this embodiment, the first limiting groove 3214 and the second limiting groove 3215 are rectangular grooves, and the corresponding part of the limiting part 332 is a rectangular block that fits them. Its edges are appropriately rounded. On the one hand, this allows for smoother insertion and removal when cooperating with the limiting groove. On the other hand, it prevents sharp edges from scratching other parts or causing wear on itself during long-term use.

[0059] The first limiting groove 3214 is located at a specific position on the locking wheel 321. When the cockpit 2 is separated from the base 1, the limiting part 332 can accurately fit into the first limiting groove 3214, achieving a stable fit. At this time, the limiting device 33 plays a good initial limiting role on the locking wheel 321, preventing the locking wheel 321 from rotating randomly due to slight external interference, ensuring that each component of the locking mechanism 3 is in a stable initial position in the separated state, avoiding unnecessary component displacement or damage, and laying a good foundation for subsequent assembly operations. The second limiting groove 3215 is located at another corresponding position on the locking wheel 321, ensuring precise fit with the limiting part 332 in the assembled state, and playing a limiting role on the locking wheel 321, just like the first limiting groove 3214. The curved transition part 3216 connects the first limiting groove 3214 and the second limiting groove 3215, and its curved shape design is derived from extensive simulation analysis and actual testing optimization. This design ensures that the limiting part 332 can smoothly transition from the first limiting groove 3214 to the second limiting groove 3215, while also maintaining the force balance and stability between the limiting device 33 and the locking wheel 321 during different state transitions. In actual assembly operations, when the cockpit 2 is assembled with the base 1, as the locking wheel 321 begins to rotate, the limiting part 332 will naturally and smoothly move from the first limiting groove 3214 to the second limiting groove 3215 along the curved transition section 3216, achieving proper coordination between the two without any jamming or the need for additional external force, greatly improving the convenience and efficiency of the assembly operation.

[0060] Furthermore, as a preferred embodiment of this solution and not a limitation, the limiting device 33 includes a reset connection part 333, the locking wheel 321 is provided with a reset connection hole 3217, and an elastic connector 34 is provided between the reset connection part 333 and the reset connection hole 3217.

[0061] In this embodiment, the reset connection 333 is an extension structure integral with the limiting device 33. The elastic connector 34 can be a common and reliable elastic element such as a spring. The two ends of the spring are connected to the reset connection 333 and the reset connection hole 3217 respectively. The connection method can be a hook connection, a threaded connection or a nested connection to ensure that the connection is firm and not easy to loosen.

[0062] When the cockpit 2 is separated from the base 1, the limiting part 332 engages with the first limiting groove 3214. At this time, the elastic connecting member 34 is in a certain tensile or compressive state (depending on the specific structural design and initial installation), storing a certain elastic potential energy. During the assembly operation of the cockpit 2 and the base 1, as the locking wheel 321 rotates, the limiting part 332 transitions along the curved transition part 3216 to the second limiting groove 3215. The elastic connecting member 34 deforms accordingly, and its elastic potential energy changes. After assembly is complete, once the limiting part 332 engages with the second limiting groove 3215, the elastic connecting member 34 maintains a stable state, assisting the entire locking mechanism 3 in maintaining a stable structure in the assembled state.

[0063] When it is necessary to separate the cabin 2 from the base 1, for example when the base 1 is installed on a car seat, the user only needs to apply a suitable upward pulling force to the cabin 2, so that the limiting part 332 reaches the critical point of disengagement from the engagement connection of the second limiting groove 3215. The elastic potential energy stored in the elastic connector 34 begins to be released, and the limiting device 33 is subjected to a force through the reset connection 333, causing the limiting device 33 to rotate around the hinge part 331. This drives the limiting part 332 to smoothly return from the second limiting groove 3215 to the first limiting groove 3214 along the curved transition part 3216, realizing the reset of the limiting device 33. At the same time, the locking wheel 321 returns to the initial position of the separated state. The whole process realizes an automatic and smooth reset operation with the help of the elastic force of the elastic connector 34, which greatly improves the convenience of operation.

[0064] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, an insertion mechanism 4 is provided between the base 1 and the cabin 2. The locking mechanism 3 is located at the front of the base 1, and the insertion mechanism 4 is located at the rear of the locking mechanism 3. The insertion mechanism 4 includes a mutually compatible insert portion 41 and an insertion interface 42. The insert portion 41 is located on one of the base 1 and the cabin 2, and the insertion interface 42 is located on the other of the base 1 and the cabin 2.

[0065] In this embodiment, during the assembly process, the insertion mechanism 4 is first inserted, and then the locking mechanism 3 is used for final secure locking. The two work together to make the connection between the cabin 2 and the base 1 more stable. For example, in the vehicle driving scenario, whether it is the up-and-down vibration caused by bumpy road conditions, or the inertial force in the front-to-back and left-to-right directions caused by sudden braking and sharp turns, thanks to the joint action of the insertion mechanism 4 and the locking mechanism 3, the cabin 2 can be firmly fixed on the base 1, which greatly ensures the safety of children when riding and avoids the safety hazards that may occur due to loose connection.

[0066] Specifically, the insert 41 is disposed on the base 1, and its shape is a protruding structure with a certain taper. The front end has a tapered shape, which facilitates guidance during insertion and allows for smoother alignment and insertion into the corresponding connector 42. Correspondingly, the connector 42 is disposed on the cockpit 2, and its position and size are precisely matched with the insert 41. The internal shape of the connector 42 matches the outer contour of the insert 41. For example, if the insert 41 is the aforementioned conical structure, the connector 42 is a matching concave conical shape to ensure a tight fit after the insert 41 is inserted, without excessive gaps that could cause wobbling. At the same time, the opening edge of the connector 42 is appropriately rounded to make the insertion of the insert 41 smoother. In addition, the cockpit 2 structure around the connector 42 is reinforced with ribs to improve the structural strength of this area, ensuring that it will not break or be damaged when subjected to external forces such as the insertion and removal of the insert 41 and vibrations during vehicle operation. It should be added that, conversely, if the embedding part 41 is disposed on the cockpit 2 and the insertion interface 42 is disposed on the base 1, the principle and effect are the same, as should be known to those skilled in the art.

[0067] Furthermore, as a preferred embodiment of this solution and not a limitation, the movable hole 313 is provided with guide ribs 314 on both sides of the hole wall near the hole opening to guide the range of motion of the locking wheel 321, and the upper end of the guide ribs 314 is rounded.

[0068] In this embodiment, the guide rib 314 is integrally formed during the manufacturing process of the housing 31. It extends inward from the wall of the movable hole 313, with an appropriate extension length. This effectively restricts and guides the range of motion of the locking wheel 321 without excessively interfering with its normal rotation. For example, during the separation or assembly of the cockpit 2 and the base 1, the guide rib 314 ensures that the locking wheel 321 rotates along a predetermined and reasonable trajectory, preventing skewness, jamming, or other abnormalities. This allows the locking mating end 21 to accurately engage with the locking groove 3211 or smoothly disengage from it.

[0069] Meanwhile, the upper end of the guide rib plate 314 is rounded. This detail design allows for a smoother transition and cooperation with the relevant parts of the locking wheel 321. During the rotation of the locking wheel 321, the contact between its edge and the guide rib plate 314 is more natural and smooth, further ensuring the accuracy of the rotation trajectory of the locking wheel 321 and helping to improve the precision and reliability of the entire locking mechanism 3 operation.

[0070] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the housing 31 is provided with a plurality of connecting portions 315 evenly distributed, and the mounting position 11 is provided with mounting holes 111 corresponding to the connecting portions 315.

[0071] In this embodiment, the connecting part 315 is generally made of high-strength engineering plastic of the same material as the main body of the housing 31. It is integrally formed during the molding process of the housing 31 through injection molding, ensuring a stable connection with the overall structure of the housing 31 and preventing loosening or detachment. The shape of the connecting part 315 can be a columnar structure with external threads or a protrusion with a snap-fit ​​structure. Correspondingly, the mounting hole 111 on the mounting position 11 is also integrally formed during the manufacturing process of the base 1. The size and shape of the mounting hole 111 are precisely matched with the connecting part 315. For example, if the connecting part 315 is an externally threaded columnar structure, then the mounting hole 111 is a corresponding internally threaded hole to achieve a threaded connection; if the connecting part 315 is a snap-fit ​​structure, a matching groove structure will be provided in the mounting hole 111 for snap-fit ​​connection. The aforementioned fixed connection structure makes the installation of the locking mechanism 3 on the base 1 more stable and reliable. In the vehicle driving scenario, even when faced with complex external forces such as bumps and vibrations, the locking mechanism 3 will not easily loosen or shift, ensuring the long-term effectiveness of the entire child car seat locking function, thereby ensuring the stability of the connection between the cabin 2 and the base 1, and providing reliable safety protection for children.

[0072] Working principle of this utility model:

[0073] This utility model proposes a detachable child car seat, which mainly consists of a base, a cabin, and a locking mechanism between the two. The base is compatible with various car seat fixing methods, thus ensuring a secure installation on the car seat. The cabin provides a safe and comfortable riding environment for children, equipped with seat belts, headrests, and other protective devices, as well as an ergonomic seat shape and cushioning. The locking mechanism allows the cabin and base to be assembled or separated, facilitating separate cleaning, storage, and transportation of the cabin, as well as individual replacement of damaged parts, thus improving ease of use and product lifespan. The locking mechanism is fixed to the corresponding mounting position on the base. The internal locking device uses components such as the locking wheel to assemble and separate the cabin from the base. The limiting shaft and limiting groove work together to enhance the connection stability. The limiting device works with the corresponding limiting groove of the locking wheel in different states and uses the elastic connector to achieve the reset operation. In addition, the insertion mechanism works with the locking mechanism to further ensure the stable connection between the cabin and the base under various operating conditions of the vehicle. At the same time, auxiliary structures such as guide ribs, connecting parts and mounting holes also play a role in ensuring the operational accuracy of the locking mechanism and its own installation stability, thereby ensuring the safety of children riding in the car.

[0074] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A split child car seat comprising a base (1) which is detachably connectable to a car seat, characterised in that, The base (1) is internally provided with a seat cabin (2) capable of accommodating and fixing children, and a locking mechanism (3) is arranged between the seat cabin (2) and the base (1) to enable assembly or separation of the two; The base (1) is provided with a mounting position (11) for fixedly connecting the locking mechanism (3), the locking mechanism (3) comprises a shell (31) adapted to the mounting position (11), an installation cavity (311) is formed between the shell (31) and the mounting position (11), and a locking device (32) for fixing or separating the seat cabin (2) and the base (1) is arranged in the installation cavity (311).

2. A split child car seat according to claim 1, wherein, The shell (31) is provided with a movable cavity (312) in communication with the installation cavity (311), the locking device (32) comprises a locking rotating wheel (321) hinged to the inner wall of the movable cavity (312), the locking rotating wheel (321) is provided with a locking groove (3211), the locking groove (3211) extends outwardly and is connected with an arc-shaped stress end (3212), the shell (31) is provided with a movable hole (313) in communication with the movable cavity (312), and the bottom of the seat cabin (2) is provided with a locking matching end (21) corresponding to the locking groove (3211).

3. A split child car seat according to claim 2, wherein, The locking rotating wheel (321) is provided with a limiting groove (3213), the base (1) is fixedly provided with a limiting shaft (12) penetrating through the installation cavity (311), and when the seat cabin (2) and the base (1) are in an assembled state, the limiting shaft (12) and the limiting groove (3213) are in clamping cooperation.

4. The split child car seat of claim 2, wherein, The locking mechanism (3) comprises a limiting device (33) arranged below the locking rotating wheel (321), the limiting device (33) comprises a hinge part (331) hinged to the shell (31) on both sides, a limiting part (332) perpendicular to the hinge part (331) is arranged on one side of the limiting device (33) to limit the movement of the locking rotating wheel (321), and the locking rotating wheel (321) is provided with a first limiting groove (3214) and a second limiting groove (3215) capable of being connected with the limiting part (332).

5. A split child car seat according to claim 4, wherein, The limiting device (33) comprises a reset connecting part (333), the locking rotating wheel (321) is provided with a reset connecting hole (3217), and an elastic connecting piece (34) is arranged between the reset connecting part (333) and the reset connecting hole (3217).

6. A split child car seat according to any one of claims 1 to 5, wherein, The base (1) and the seat cabin (2) are provided with an insertion mechanism (4), the locking mechanism (3) is arranged at the front of the base (1), and the insertion mechanism (4) is arranged at the rear relative to the locking mechanism (3).

7. A split child car seat according to claim 6, wherein, The insertion mechanism (4) comprises an embedding part (41) and an insertion port (42) adapted to each other, the embedding part (41) is arranged on one of the base (1) and the seat cabin (2), and the insertion port (42) is arranged on the other one of the base (1) and the seat cabin (2).

8. The split child car seat of claim 2, wherein, The movable hole (313) is provided with a guide rib plate (314) on both side hole walls near the hole opening to guide the movement range of the locking rotating wheel (321).

9. A split child car seat according to any one of claims 1 to 5, wherein, The shell (31) is uniformly provided with a plurality of connecting portions (315), and the mounting position (11) is provided with mounting holes (111) corresponding to the connecting portions (315).

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