Base assembly and child seat

Abstract

The application relates to the technical field of children's products, in particular to a base assembly and a children's seat. The base assembly comprises a base and a supporting foot pad, the base is provided with a mounting cavity, the inner side wall of the mounting cavity is provided with a first limiting part; the supporting foot pad is arranged in the mounting cavity and rotationally connected to the base, the outer side wall of the supporting foot pad is provided with a second limiting part; the supporting foot pad is configured to rotate relative to the base along a first direction, so that the supporting foot pad is switched from a retracted state to an extended state; and the supporting foot pad is configured to rotate relative to the base along a second direction, so that the supporting foot pad is switched from the extended state to the retracted state; wherein the first limiting part and the second limiting part are separated from each other when the supporting foot pad is in the retracted state; and the first limiting part and the second limiting part are matched with each other to prevent the supporting foot pad from being separated from the base when the supporting foot pad is in the extended state. The children's seat comprises the above base assembly. The children's seat applying the base assembly is convenient to adjust the height.

Description

Technical Field

[0001] This application relates to the field of children's products technology, and in particular to a base assembly and a child seat. Background Technology

[0002] With the improvement of living standards, the number of family cars is also increasing, and choosing to travel by car has become a common way for families to travel daily. A child seat specifically designed for children of all ages can effectively improve children's safety while traveling. Currently, most child seats consist of a detachable seat and base. The seat can also be an infant carrier, with the base pre-secured to the car seat using a seatbelt. When in use, simply attach the seat or carrier to the base.

[0003] Currently, the height settings for child car seats are relatively limited, making it difficult to ensure that child car seats are well adapted to various usage environments. Utility Model Content

[0004] The main purpose of this application is to propose a base assembly and a child seat, which aims to solve the technical problem that current child seats cannot flexibly adjust their height.

[0005] To achieve the above objectives, this application proposes a base assembly, comprising: A base having a mounting cavity, wherein a first limiting part is provided on the inner sidewall of the mounting cavity; A support foot pad is disposed within the mounting cavity and rotatably connected to the base. A second limiting portion is provided on the outer side wall of the support foot pad. The support foot pad has a retracted state and an extended state relative to the base. The support foot pad is configured to rotate relative to the base in a first direction to switch from the retracted state to the extended state, and also configured to rotate relative to the base in a second direction to switch from the extended state to the retracted state. When the support foot is in the retracted state, the first limiting part and the second limiting part are separated from each other; when the support foot is in the extended state, the first limiting part and the second limiting part cooperate with each other to prevent the support foot from detaching from the base.

[0006] Specifically, in this embodiment, the height of the base assembly can be adjusted by switching the state of the support foot pad relative to the base, thereby adjusting the pitch angle of the base assembly. For example, when it is necessary to increase the height of the base assembly, i.e., to increase the pitch angle of the base assembly, the support foot pad can be switched from the retracted state to the extended state. The support foot pad can raise the base, thereby increasing the height of the base assembly. This state is suitable for younger children, allowing them to lie flat and improving their comfort while riding. When the support foot pad is in position, the first and second limiting parts cooperate to form an interference, ensuring that the support foot pad does not overtravel and detach from the base, improving the assembly stability between the support foot pad and the base. When it is necessary to lower the height of the base assembly, i.e., to reduce the pitch angle of the base assembly, the support foot pad can be switched from the extended state to the retracted state. By releasing the lifting effect of the support foot pad on the base, the height of the base assembly is lowered. This state is suitable for older children, allowing them to look straight ahead and satisfying their curiosity about the environment. During the process of the support foot pad gradually retracting into the base, the first limiting part and the second limiting part gradually separate, that is, the second limiting part moves away from the first limiting part in the opposite direction, ensuring that there is no interference between the first limiting part and the second limiting part.

[0007] The support feet can be easily switched between retracted and extended states with a simple rotation, allowing for quick height adjustment of the base assembly. Users can easily adapt the base assembly to children of different heights or different usage scenarios without complicated disassembly, installation, or the use of additional tools, significantly improving the user experience. When the support feet are rotated to the extended state, the first limiting part on the base and the second limiting part on the support feet cooperate to form an effective mechanical lock. This locking method reliably prevents the support feet from accidentally detaching from the base or unexpectedly rotating back during use, ensuring the stability and safety of the base assembly at any usage height and providing stable support for children. When the support feet are rotated to the retracted state, they are completely housed within the mounting cavity of the base, and the first and second limiting parts separate. This design makes the base assembly more compact in its non-use or transport state, effectively reducing the overall space occupied by the base assembly.

[0008] In some embodiments, the first limiting part includes a first limiting buckle with the opening facing upward, and the second limiting part includes a second limiting buckle with the opening facing downward. When the support foot pad is in the extended state, the first limiting buckle and the second limiting buckle are engaged with each other. Alternatively, the first limiting part includes a first magnetic element, and the second limiting part includes a second magnetic element. When the support foot pad is in the extended state, the first magnetic element and the second magnetic element are magnetically connected to each other.

[0009] Specifically, in this embodiment, when the first limiting part and the second limiting part are connected by a snap-fit ​​connection, interference can be effectively formed, which enhances the mechanical strength and reliability of the locking between the first limiting part and the second limiting part, reduces the risk of the support foot pad accidentally detaching from the base, and ensures the safety of use.

[0010] When the first and second limiting parts are connected by magnetic attraction, it saves time and effort, reduces the difficulty of matching the first and second limiting parts, and there is no connection noise or mechanical wear during the attraction process of the first and second limiting parts, which helps to achieve silent operation of the base assembly and extend the service life of the base assembly.

[0011] In some embodiments, the outer wall of the support foot pad is provided with a limiting rib at the second limiting portion, and the limiting rib is disposed on the inner side of the second limiting portion.

[0012] Specifically, in this embodiment, by setting limiting ribs, it is beneficial to improve the structural strength of the second limiting part and ensure the connection stability between the second limiting part and the first limiting part.

[0013] In some embodiments, the inner bottom wall of the support foot pad is provided with a limiting rib, and the base assembly includes a first elastic member disposed in the mounting cavity, one end of the first elastic member being connected to the limiting rib and the other end of the first elastic member being connected to the base. When the support foot is in the retracted state, the first elastic element is in a compressed state; when the support foot is in the extended state, the first elastic element is in a released state.

[0014] Specifically, in this embodiment, under the elastic force of the first elastic element, the support foot pad is more likely to extend from the base, which helps to improve the rotation flexibility of the support foot pad and saves time and effort.

[0015] In some embodiments, the height H of the limiting rib satisfies: 8mm≤H≤10mm.

[0016] Specifically, in this embodiment, the height of the limiting rib is set within the above-mentioned range, which can ensure that the limiting rib provides a stable connection point for the first elastic element, and also save space and avoid waste of materials.

[0017] In some embodiments, the base is provided with a pivot hole, the support foot is provided with a pivot shaft, and the pivot shaft is connected in the pivot hole to realize the rotatable connection between the support foot and the base.

[0018] Specifically, in this embodiment, a connection method using a pivot shaft and a pivot hole is adopted, which is simple in structure and has few parts. The shaft and hole connection can effectively transmit radial loads and a certain degree of bending moment, so as to achieve stable and reliable rotational support between the support foot pad and the base, and ensure that the support foot pad can stably support the weight of the child seat when it is extended.

[0019] In some embodiments, the length L of the pivot shaft satisfies: 4mm ≤ L ≤ 6mm.

[0020] Specifically, in this embodiment, the pivot shaft is set within the above-mentioned range, which can not only ensure the fitting accuracy between the pivot shaft and the pivot hole, but also facilitate the assembly between the pivot shaft and the pivot hole.

[0021] In some embodiments, the base assembly further includes an adjusting member rotatably connected to the base, the adjusting member including a pressing part and a locking part, and the supporting foot pad having a plurality of stop holes along the rotation direction of the supporting foot pad; The pressing part is configured to drive the locking part to disengage from the gear position hole, so that the adjusting member is in an unlocked state; and the pressing part is configured to drive the locking part to engage with the gear position hole, so that the adjusting member is in a locked state.

[0022] Specifically, in this embodiment, by providing multiple adjustable holes, multi-level height adjustment of the base assembly can be achieved, improving its versatility. By pressing the adjustment mechanism, the base assembly can be adjusted and stably positioned at different heights.

[0023] In some embodiments, the base is provided with an observation hole, and the support foot pad is provided with multiple gear position markings, each gear position marking corresponding to each gear position hole. When the locking part is engaged in the gear position hole, the observation hole displays the corresponding gear position marking.

[0024] Specifically, in this embodiment, each gear hole is provided with a gear indicator. When the base assembly is adjusted to the corresponding gear height, the corresponding gear indicator can be seen directly through the observation hole, which makes it easy for the user to ensure that the support foot pad has moved into place.

[0025] Correspondingly, another embodiment of this application also provides a child seat, including: The base assembly described in any of the above embodiments; A carrying basket, which is detachably connected to the base assembly.

[0026] Specifically, in this embodiment, the child seat using the aforementioned base assembly is height-adjustable, ensuring that the child seat is suitable for children of different ages and can be installed on different car seats, thereby improving the versatility of the child seat and the comfort of children when riding in it. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of a base assembly provided in an embodiment of this application when viewed from a first perspective and in a retracted state; Figure 2 A schematic diagram of the structure of a base assembly provided in an embodiment of this application when viewed from a first perspective and in the extended state; Figure 3 A structural cross-sectional view of a base assembly provided in an embodiment of this application, taken from a first perspective and in the extended state; Figure 4 A schematic diagram of the structure of a base assembly provided in an embodiment of this application when viewed from a second perspective and in the extended state; Figure 5 A schematic diagram of the base assembly provided in an embodiment of this application from a first-view perspective; wherein the adjusting member is in a locked state; Figure 6 A schematic diagram of the base assembly provided in an embodiment of this application from a first perspective; wherein the adjusting member is in the unlocked state; Figure 7 This is a schematic diagram of the structure of a base provided in one embodiment of this application; Figure 8 A schematic diagram of the structure of a support pad provided in an embodiment of this application from a first perspective; Figure 9 This is a structural schematic diagram of the support foot pad provided in an embodiment of this application from a second perspective.

[0029] Explanation of icon numbers: 100. Base; 110. Mounting cavity; 120. First limiting part; 130. Pivoting hole; 140. Observation hole; 200. Support feet; 210. Second limiting part; 220. Limiting rib; 230. Limiting rib column; 240. First elastic element; 250. Pivot shaft; 260. Gear hole; 270. Gear position indicator; 300. Adjusting components; 310. Pressing part; 320. Locking part; 330. Second elastic element; X, first direction; Y, the second direction.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0034] With the improvement of living standards, the number of family cars is also increasing, and choosing to travel by car has become a common way for families to travel daily. A child seat specifically designed for children of all ages can effectively improve children's safety while traveling. Currently, most child seats consist of a detachable seat and base. The seat can also be an infant carrier, with the base pre-secured to the car seat using a seatbelt. When in use, simply attach the seat or carrier to the base.

[0035] Currently, child car seat height settings are relatively uniform, which cannot guarantee that the child car seat will adapt well to various usage environments. For example, if the height settings of child car seats are relatively uniform, it is impossible to guarantee the comfort of children of different ages when riding in the child car seat, or if the height settings of child car seats are relatively uniform, it is impossible to match car seats with different recline angles.

[0036] Based on this, in order to solve the current technical problem that child car seats cannot be flexibly adjusted in height, referring to Figures 1 to 9 This application provides a base assembly for height adjustment of a child seat. The base assembly includes a base 100 and a support foot pad 200. The base 100 has a mounting cavity 110, and a first limiting portion 120 is provided on the inner sidewall of the mounting cavity 110. The support foot pad 200 is disposed within the mounting cavity 110 and rotatably connected to the base 100. A second limiting portion 210 is provided on the outer sidewall of the support foot pad 200. The support foot pad 200 has a retracted state and an extended state relative to the base 100. The support foot pad 200 is configured to rotate relative to the base 100 in a first direction X to switch from the retracted state to the extended state, and to rotate relative to the base 100 in a second direction Y to switch from the extended state to the retracted state. For example, the first direction X and the second direction Y can be opposite directions. When the support foot pad 200 is in the retracted state, the first limiting part 120 and the second limiting part 210 are separated from each other; when the support foot pad 200 is in the extended state, the first limiting part 120 and the second limiting part 210 cooperate with each other to prevent the support foot pad 200 from detaching from the base 100.

[0037] Specifically, in this embodiment, the height of the base assembly can be adjusted by switching the state of the support foot pad 200 relative to the base 100, thereby adjusting the pitch angle of the base assembly. For example, when it is necessary to increase the height of the base assembly, i.e., to increase the pitch angle of the base assembly, the support foot pad 200 can be switched from the retracted state to the extended state. The support foot pad 200 can then raise the base 100, thereby increasing the height of the base assembly. This state is suitable for younger children, allowing them to lie flat and improving their comfort while riding. When the support foot pad 200 is in position, the first limiting part 120 and the second limiting part 210 can cooperate to form an interference, ensuring that the support foot pad 200 does not overtravel and detach from the base 100, thus improving the assembly stability between the support foot pad 200 and the base 100. When it is necessary to decrease the height of the base assembly, i.e., to reduce the pitch angle of the base assembly, the support foot pad 200 can be switched from the extended state to the retracted state. By releasing the lifting effect of the support foot pad 200 on the base 100, the height of the base assembly is reduced. The above configuration is suitable for older children, allowing them to look straight ahead and satisfying their curiosity about the environment. During the process of the support foot pad 200 gradually retracting into the base 100, the first limiting part 120 and the second limiting part 210 gradually separate, ensuring that there is no interference between the first limiting part 120 and the second limiting part 210.

[0038] The support foot 200 can be easily switched between a retracted and extended state by a simple rotation, allowing for quick adjustment of the base assembly's height. Users can easily adapt the base assembly to children of different heights or different usage scenarios without complicated disassembly, installation, or the use of additional tools, significantly improving the user experience. When the support foot 200 is rotated to the extended state, the first limiting part 120 on the base 100 and the second limiting part 210 on the support foot 200 cooperate to form an effective mechanical lock. This locking method reliably prevents the support foot 200 from accidentally detaching from the base 100 or unexpectedly rotating and retracting during use, ensuring the stability and safety of the base assembly at its usage height and providing stable support for children. When the support foot 200 is rotated to the retracted state, it is completely housed within the mounting cavity 110 of the base 100, and the first limiting part 120 and the second limiting part 210 separate. This design makes the base assembly more compact in its non-use or transport state, effectively reducing the overall space occupied by the base assembly.

[0039] In some embodiments, the inner wall of the mounting cavity 110 may be provided with a guide rail, and the first limiting part 120 is disposed within the guide rail. The support foot 200 can rotate along the guide rail to improve the rotation accuracy of the support foot 200 and prevent the support foot 200 from deflecting.

[0040] In some embodiments, refer to Figure 3 The present invention provides a specific structure of a first limiting part 120 and a second limiting part 210. For example, the first limiting part 120 includes a first limiting buckle with the opening facing upward, and the second limiting part 210 includes a second limiting buckle with the opening facing downward. When the support foot pad 200 is in the extended state, the first limiting buckle and the second limiting buckle are engaged with each other.

[0041] Specifically, in this embodiment, by designing the first limiting part 120 as an upward-facing first limiting buckle and the second limiting part 210 as a downward-facing second limiting buckle, the two form a structure that interlocks when the support foot pad 200 rotates to the extended state. This interlocking method is similar to the cooperation of a "hook" and a "ring," which can effectively create interference, enhance the mechanical strength and reliability of the locking between the first limiting part 120 and the second limiting part 210, reduce the risk of the support foot pad 200 accidentally detaching from the base 100, and ensure safety in use.

[0042] The design features interlocking openings at the top and bottom. When the support foot 200 is rotated to the extended position, the specific opening directions of the first and second limit buckles guide them to "capture" each other and lock accurately. This helps ensure that the support foot 200 can stably and accurately reach and lock in the preset extended position each time, avoiding locking failure or jamming of the support foot 200 due to misalignment.

[0043] Alternatively, in some embodiments, refer to Figure 3 Another specific structure of the first limiting part 120 and the second limiting part 210 is provided. For example, the first limiting part 120 includes a first magnetic member, the second limiting part 210 includes a second magnetic member, and when the support foot pad 200 is in the extended state, the first magnetic member and the second magnetic member are magnetically connected to each other.

[0044] Specifically, in this embodiment, utilizing the magnetic force between the first and second magnetic components, when the support foot 200 rotates to a near-extended position, the magnetic force automatically guides and assists in completing the adsorption connection, achieving a "close-to-lock" effect and effectively preventing the support foot 200 from detaching from the base 100. When the support foot 200 is retracted into the base 100, only a rotation sufficient to overcome the magnetic force is required, improving the convenience and smoothness of operation. The magnetic connection has relatively low requirements for the relative positional accuracy between the two magnetic components. As long as the support foot 200 rotates to approximately the extended position, the magnetic force can effectively attract the support foot 200 into place and maintain it in a locked state. This reduces the stringent requirements for manufacturing and assembly precision, making it easier for users to successfully complete the locking process in actual operation, thus improving the usability and reliability of the product. Moreover, during the engagement of the first limiting part 120 and the second limiting part 210, there is no connection noise or mechanical wear, which helps to achieve silent operation of the base assembly and extend the service life of the base assembly.

[0045] In some embodiments, refer to Figure 8 and Figure 9 The outer wall of the support foot pad 200 is provided with a limiting rib 220 at the second limiting part 210, and the limiting rib 220 is provided on the inner side of the second limiting part 210.

[0046] Specifically, in this embodiment, the limiting rib 220 serves as a reinforcing rib disposed inside the second limiting part 210, effectively increasing the bending modulus of the second limiting part 210. When the support foot pad 200 is in the extended state and the first limiting part 120 and the second limiting part 210 are engaged (e.g., snapped, abutted, or magnetically connected), the limiting rib 220 can effectively resist the bending, twisting, or inward collapse deformation of the second limiting part 210 caused by force, ensuring the structural integrity of the second limiting part 210 and preventing the support foot pad 200 from failing to lock due to deformation of the second limiting part 210.

[0047] In some embodiments, refer to Figure 3 and Figure 9 The inner bottom wall of the support foot 200 is provided with a limiting rib 230. The base assembly includes a first elastic element 240 (for example, the first elastic element 240 can be a spring). The first elastic element 240 is disposed in the mounting cavity 110. One end of the first elastic element 240 is connected to the limiting rib 230, and the other end of the first elastic element 240 is connected to the base 100. When the support foot 200 is in the retracted state, the first elastic element 240 is in the compressed state; when the support foot 200 is in the extended state, the first elastic element 240 is in the released state.

[0048] Specifically, in this embodiment, when the support foot 200 switches from the retracted state to the extended state, the first elastic element 240 gradually changes from a compressed state to a released state. During the release process, the first elastic element 240 generates an elastic force, which acts on the support foot 200, causing it to move quickly into position, thus improving its flexibility and efficiency and saving time and effort. When the support foot 200 switches from the extended state to the retracted state, the first elastic element 240 gradually changes from a released state to a compressed state. During the compression process, resistance is generated, which acts on the support foot 200. This resistance requires the support foot 200 to overcome the elastic resistance during resetting, preventing accidental activation and ensuring safety.

[0049] Furthermore, the limiting rib 230 provides a stable and reliable connection point for the first elastic element 240 inside the support foot pad 200. Compared to directly connecting the first elastic element 240 to the thin-walled shell, the limiting rib 230 increases the structural strength and rigidity of the connection point, preventing the risk of tearing or failure of the connection point due to repeated stress.

[0050] In some embodiments, refer to Figure 3 and Figure 9 The height H of the limiting rib 230 satisfies: 8mm ≤ H ≤ 10mm. For example, the value of H can be 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.

[0051] Specifically, in this embodiment, the height of the limiting rib 230 is set within the above-mentioned range. On the one hand, this prevents the limiting rib 230 from being too short, which would prevent it from providing a good limiting and fixing effect for the first elastic member 240, thus hindering the improvement of the connection strength between the first elastic member 240 and the limiting rib 230. On the other hand, this prevents the limiting rib 230 from being too high, which would cause it to occupy too much space, making it difficult to reduce the overall volume of the base assembly and also resulting in a waste of the material of the limiting rib 230.

[0052] In some embodiments, refer to Figures 7 to 9 A specific structure is provided to achieve a rotatable connection between the support foot pad 200 and the base 100. For example, the base 100 is provided with a pivot hole 130, the support foot pad 200 is provided with a pivot shaft 250, and the pivot shaft 250 is connected in the pivot hole 130 to achieve a rotatable connection between the support foot pad 200 and the base 100.

[0053] Specifically, in this embodiment, a connection method using a pivot shaft 250 and a pivot hole 130 is adopted. This method has a simple structure, few parts, and the shaft-hole connection can effectively transmit radial loads and a certain degree of bending moment, achieving stable and reliable rotational support between the support foot pad 200 and the base 100, and ensuring that the support foot pad 200 can stably support the weight of the child seat when it is extended.

[0054] By precisely controlling the fit tolerance between the outer diameter of the pivot shaft 250 and the inner diameter of the pivot hole 130 (such as small clearance fit or slight interference fit), the support foot pad 200 can rotate smoothly and without jamming relative to the base 100, while also providing appropriate rotational damping to prevent the support foot pad 200 from wobbling freely in non-operational state and ensure the connection stability of the support foot pad 200.

[0055] In some embodiments, refer to Figure 8 and Figure 9 The length L of the pivot shaft 250 satisfies: 4mm ≤ L ≤ 6mm. For example, the value of L can be 4mm, 4.5mm, 5mm, 5.5mm, 6mm, etc.

[0056] Specifically, in this embodiment, by setting the length of the pivot shaft 250 within the aforementioned range, it is possible to ensure that the length of the pivot shaft 250 is moderate. On the one hand, this avoids the pivot shaft 250 being too short, which would prevent a stable fit between the pivot shaft 250 and the pivot hole 130, thus hindering the connection accuracy and stability between the support foot pad 200 and the base 100. On the other hand, it avoids the pivot shaft 250 being too long, which would prevent the pivot shaft 250 from being installed in the pivot hole 130, thus hindering the installation and assembly between the support foot pad 200 and the base 100.

[0057] In some embodiments, refer to Figure 5 and Figure 6 The base assembly also includes an adjusting member 300, which is rotatably connected to the base 100. The adjusting member 300 includes a pressing part 310 and a locking part 320. Along the rotation direction of the support foot pad 200, the support foot pad 200 is provided with a plurality of position holes 260. The pressing part 310 is configured to drive the locking part 320 out of the position holes 260 to release the adjusting member 300; and the pressing part 310 is configured to drive the locking part 320 into the position holes 260 to lock the adjusting member 300.

[0058] Specifically, in this embodiment, the height of the support foot 200 extending from the base 100 can be precisely positioned by the cooperation (e.g., snap-fit) between the locking part 320 and the gear hole 260, ensuring that the base assembly can be stably positioned at a certain height. For example, when it is necessary to adjust the height of the base assembly, force is applied to the pressing part 310, causing the adjusting member 300 to rotate and the locking part 320 to disengage from the gear hole 260. At this time, the adjusting member 300 is in an unlocked state, and the support foot 200 is no longer constrained by the adjusting member 300 and can rotate freely. After adjusting the base assembly to a suitable height, force is applied to the pressing part 310 again, causing the adjusting member 300 to rotate in the opposite direction and the locking part 320 to snap into the corresponding gear hole 260. At this time, the adjusting member 300 is in a locked state, and the adjusting member 300 can constrain the support foot 200, preventing the support foot 200 from rotating and ensuring that the base assembly can be stably positioned at a certain height.

[0059] One possible implementation is to refer to Figure 5 and Figure 6 The adjusting member 300 is connected to a second elastic member 330 (for example, the second elastic member 330 can be a spring). Specifically, the second elastic member 330 is provided at the pressing part 310. When force is applied to the pressing part 310, the second elastic member 330 is compressed. When the external force on the pressing part 310 is removed, the pressing part 310 can automatically reset under the elastic force of the second elastic member 330, and the locking part 320 is engaged in the stop hole, thereby realizing the automatic locking of the adjusting member 300.

[0060] By providing multiple adjustable holes 260, the height of the base assembly can be adjusted in stages, ensuring that the base assembly is suitable for different usage environments and improving its versatility. For example, if the support foot pad 200 has four sets of adjustable holes 260, the base assembly will have four different height adjustments.

[0061] In some embodiments, refer to Figure 1 , Figure 2 , Figure 4 , Figure 7 , Figure 8 and Figure 9 The base 100 is provided with an observation hole 140, and the support foot pad 200 is provided with multiple gear position markings 270. Each gear position marking 270 corresponds to a gear position hole 260. When the locking part 320 is engaged in the gear position hole 260, the observation hole 140 displays the corresponding gear position marking 270. For example, the gear position marking 270 can be the numbers "1", "2", "3", "4", etc., or the gear position marking 270 can also be the symbols "Ⅰ", "Ⅱ", "Ⅲ", "Ⅳ", etc.

[0062] Specifically, in this embodiment, each gear position hole 260 is provided with a corresponding gear position indicator 270. When the base assembly is adjusted to the corresponding gear position height, the corresponding gear position indicator 270 can be clearly seen through the observation hole 140, making it easy for the user to ensure that the support foot pad 200 has moved into place. One possible implementation is that the observation hole 140 can be a through hole, and the gear position indicator 270 can be formed by recessing numbers / symbols with a recess depth of 0.5mm to ensure that the numbers / symbols are clear.

[0063] Correspondingly, another embodiment of this application also provides a child seat, which includes the base assembly of any of the above embodiments. The child seat also includes a carrier, which is detachably connected to the base assembly. For example, the carrier can be snapped onto the base assembly, or the carrier can be magnetically connected to the base assembly.

[0064] Specifically, in this embodiment, the child seat using the aforementioned base assembly is height-adjustable, ensuring that the child seat is suitable for children of different ages and can be installed on different car seats, thereby improving the versatility of the child seat and the comfort of children when riding in it.

[0065] Thanks to the improvements to the base assembly described above, the child seat in this embodiment has the same technical effect as the base assembly described above, which will not be repeated here.

[0066] It should be noted that other undisclosed aspects of the base assembly and child seat provided in this application can be found in the prior art, and will not be repeated here.

[0067] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the content of the specification and drawings of this application under the concept of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A base assembly characterized by, include: A base having a mounting cavity, the inner wall of which is provided with a first limiting part; A support foot pad is disposed within the mounting cavity and rotatably connected to the base. A second limiting portion is provided on the outer side wall of the support foot pad. The support foot pad has a retracted state and an extended state relative to the base. The support foot pad is configured to rotate relative to the base in a first direction to switch from the retracted state to the extended state, and also configured to rotate relative to the base in a second direction to switch from the extended state to the retracted state. When the support foot is in the retracted state, the first limiting part and the second limiting part are separated from each other; when the support foot is in the extended state, the first limiting part and the second limiting part cooperate with each other to prevent the support foot from detaching from the base.

2. The base assembly of claim 1, wherein, The first limiting part includes a first limiting buckle with the opening facing upwards, and the second limiting part includes a second limiting buckle with the opening facing downwards. When the supporting foot pad is in the extended state, the first limiting buckle and the second limiting buckle are engaged with each other. Alternatively, the first limiting part includes a first magnetic element, the second limiting part includes a second magnetic element, and when the support foot pad is in the extended state, the first magnetic element and the second magnetic element are magnetically connected to each other.

3. The base assembly of claim 1, wherein, The outer wall of the support foot pad is provided with a limiting rib at the second limiting part, and the limiting rib is provided on the inner side of the second limiting part.

4. The base assembly of claim 1, wherein, The inner bottom wall of the support foot pad is provided with a limiting rib, and the base assembly includes a first elastic element, which is disposed in the mounting cavity. One end of the first elastic element is connected to the limiting rib, and the other end of the first elastic element is connected to the base. When the support foot is in the retracted state, the first elastic element is in a compressed state; when the support foot is in the extended state, the first elastic element is in a released state.

5. The base assembly of claim 4, wherein, The height H of the limiting rib satisfies: 8mm≤H≤10mm.

6. The base assembly of claim 1, wherein, The base is provided with a pivot hole, and the support foot pad is provided with a pivot shaft. The pivot shaft is connected to the pivot hole to realize the rotatable connection between the support foot pad and the base.

7. The base assembly of claim 6, wherein, The length L of the pivot shaft satisfies: 4mm≤L≤6mm.

8. The base assembly of claim 1, wherein, The base assembly further includes an adjusting member, which is rotatably connected to the base. The adjusting member includes a pressing part and a locking part. Along the rotation direction of the support foot pad, the support foot pad is provided with multiple stop holes. The pressing part is configured to drive the locking part to disengage from the gear position hole, so that the adjusting member is in an unlocked state; and the pressing part is configured to drive the locking part to engage with the gear position hole, so that the adjusting member is in a locked state.

9. The base assembly of claim 8, wherein, The base is provided with an observation hole, and the support foot pad is provided with multiple gear position markings. Each gear position marking corresponds to each gear position hole. When the locking part is engaged in the gear position hole, the observation hole displays the corresponding gear position marking.

10. Child seat, characterized in that include: The base assembly according to any one of claims 1 to 9; A carrying basket, which is detachably connected to the base assembly.

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