Seat assembly and child seat

By designing the recessed position and support rib structure in the seat assembly, preventing the cover plate from over-deforming contact with the locking member, the problem of easy deformation of the plastic shell of the child seat is solved, and safety and stability are improved.

CN223286867UActive Publication Date: 2025-09-02CHINA BAMBINO PREZIOSO CO LTD
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Patent Information

Application Number
CN202422469347.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-09-02
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

The plastic shell of existing child seats is prone to deform when subjected to external forces, which may cause the button to be triggered unexpectedly, affecting the safety of use and posing potential safety risks.

Method used

A seat assembly is designed, including a seat part, a first locking member and a cover plate. The upper surface of the seat part is formed in a recessed position and is provided with a support rib. The cover plate is increased to the distance from the locking member through the support rib, so as to prevent the cover plate from excessively deforming to contact the locking member and enhance safety.

Benefits of technology

Effectively prevent children from touching the locking parts by mistake, improve the safety of seat components and child seats, ensure that the cover plate does not directly contact the locking parts when it is deformed under stress, and enhance structural stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a seat assembly and a child seat. The seat assembly comprises a seat body, and the seat body comprises a seat part, a first locking piece and a covering plate. The upper surface of the seat part is sunken downwards to form a sunken position, the first locking piece is arranged in the sunken position and connected with the seat part, and the covering plate is connected to the seat part and covers an upper end opening of at least part of the sunken position. The upper surface of the seat part protrudes upwards to form a supporting rib, the supporting rib has the effect of increasing the distance between the covering plate and the first locking piece when the covering plate is pressed, and the distance lost from the covering plate to the first locking piece due to excessive deformation is compensated through the increased distance. Therefore, the covering plate is prevented from touching the first locking piece in the concave position due to excessive deformation, and the safety of the seat assembly in the using process is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of infant and toddler appliances, in particular to a seat assembly and a child seat. Background Art

[0002] Currently, many child seats utilize lightweight and resilient materials such as plastic and resin for their outer shells or support structures. While these materials can reduce the overall weight of the seat and provide a comfortable feel, they also present structural stability challenges. In actual use, child seats may be subject to various external forces from children themselves, such as climbing and stepping on them. Due to the high plasticity of these materials, they are prone to deformation when subjected to external forces. Deformation, in particular, in critical areas, such as the support structure or button areas, can lead to a range of safety issues.

[0003] For example, some child seats may have integrated control buttons on the back or side of the seat to adjust the seat's angle or function. However, if a child accidentally steps on these areas while in the seat, the plastic shell may deform, or the child may step directly on the buttons, causing them to be accidentally activated. This not only affects the normal use of the seat but also poses a potential safety hazard to the child. Utility Model Content

[0004] The main purpose of the utility model is to provide a seat assembly and a child seat, which can effectively prevent children from accidentally touching the locking member, thereby improving the safety of the seat assembly and the child seat.

[0005] To achieve the above objectives, some embodiments of the present invention provide a seat assembly, comprising:

[0006] A seat portion, wherein an upper surface of the seat portion is concave to form a recessed position;

[0007] a first locking member disposed in the recessed position and connected to the seat portion;

[0008] a cover plate connected to the seat portion and covering at least a portion of the upper port at the recessed position;

[0009] The upper surface is convex to form a support rib, and the cover plate abuts against the support rib.

[0010] In some embodiments, support ribs surround the upper port in the recessed position.

[0011] In some embodiments, the sidewalls of the support ribs are flush with the inner surface of the recessed location.

[0012] In some embodiments, a height H of the support rib protruding from the seat portion satisfies: 2 mm ≤ H ≤ 5 mm.

[0013] In some embodiments, the seat assembly also includes a backrest, which is connected to one side of the seat portion, and the opening of the recessed position is trapezoidal, the first edge of the trapezoid is located on the side of the seat portion away from the backrest, and the second edge of the trapezoid is located on the side of the seat portion close to the backrest, and the length of the first edge is greater than the second edge.

[0014] In some embodiments, the support rib surrounds the second edge.

[0015] In some embodiments, the recessed position has a recessed direction that is a first direction, the first plane is perpendicular to the first direction, and along the first direction, a projection of the cover plate on the first plane is a first projection, and a projection of the recessed position on the first plane is a second projection;

[0016] In the direction from the second edge to the first edge, the length of the first projection is smaller than the length of the second projection.

[0017] In some embodiments, along the length direction of the first edge, the length of the first projection is greater than that of the second projection.

[0018] In some embodiments, the seat assembly further includes a rotary release member, which is disposed on the seat portion and includes a fixing seat, a release button, a connecting screw, and a steel wire. The fixing seat is connected to the seat portion via the connecting screw. The release button is slidably connected to the fixing seat. The direction in which the release button slides relative to the fixing seat is parallel to the axial direction of the connecting screw. The steel wire is connected to the release button. The release button slides to place the steel wire in a locked state or a released state.

[0019] The connecting screw includes a boss having a smooth outer peripheral wall, the fixing seat has a positioning hole, the connecting screw is passed through the positioning hole, and the outer peripheral wall of the boss fits the inner wall of the positioning hole.

[0020] A second aspect of the present invention provides a child seat, comprising the seat assembly of any one of the aforementioned items, the child seat further comprising a support foot assembly connected to the seat portion, the support foot assembly comprising a support foot decorative cover and an anti-pinch cover, the anti-pinch cover being movable relative to the support foot decorative cover so that an outer wall of the anti-pinch cover abuts against an inner wall of the support foot decorative cover;

[0021] Wherein, the inner wall of the supporting foot decorative cover adapted to be abutted by the anti-pinch cover is provided with a supporting piece.

[0022] According to the above embodiments, the beneficial effects of the present invention are:

[0023] The seat assembly of the present invention includes a seat body, comprising a seat portion, a first locking member, and a cover plate. The upper surface of the seat portion is concave to form a recessed position. The first locking member is disposed within the recessed position and is connected to the seat portion. The cover plate is connected to the seat portion and covers at least a portion of an upper end of the recessed position. The upper surface of the seat portion is convex to form a support rib. The support rib functions to increase the distance between the cover plate and the first locking member when the cover plate is subjected to pressure. This increased distance compensates for the distance lost to the first locking member due to excessive deformation of the cover plate, thereby preventing the cover plate from excessively deforming and contacting the first locking member within the recessed position, thereby ensuring safety. For example, when a child stands on the cover plate, the support rib increases the distance between the cover plate and the first locking member. Even if the cover plate is significantly deformed under pressure, the cover plate will not directly contact the first locking member within the recessed position, thereby preventing the child from accidentally contacting the locking member and significantly enhancing the safety of the seat assembly.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a structural diagram of a seat assembly in one embodiment of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the middle seat assembly from above, wherein the cover plate is hidden;

[0028] Figure 3 for Figure 1 A schematic cross-sectional view of the middle seat assembly;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 1 A schematic diagram of the front structure of the middle seat assembly;

[0031] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0032] Figure 7 This is a structural diagram of a release button in one embodiment of the present utility model;

[0033] Figure 8 This is a structural diagram of a fixing base in one embodiment of the present utility model;

[0034] Figure 9 This is a schematic structural diagram of a child seat in one embodiment of the present invention;

[0035] Figure 10 for Figure 9 Schematic diagram of the structure of the middle support leg assembly;

[0036] Figure 11 for Figure 10 A schematic cross-sectional view of the child seat, wherein the support leg assembly is in the open position;

[0037] Figure 12 for Figure 11 Enlarged view of point C in the middle;

[0038] Figure 13 for Figure 11 Enlarged view of point D in the middle;

[0039] Figure 14 for Figure 10 A schematic cross-sectional view of the child seat, wherein the support leg assembly is in a closed state;

[0040] Figure 15 for Figure 14 Enlarged view of point E in the middle;

[0041] Figure 16 This is a structural diagram of a supporting foot decorative cover in one embodiment of the present utility model;

[0042] Figure 17 Schematic diagram of the structure of the anti-pinch cover in one embodiment of the present invention.

[0043] Description of Figure Numbers:

[0044] a seat portion 100;

[0045] Recessed position 110; first edge 111; second edge 112;

[0046] Support ribs 120;

[0047] Backrest 200;

[0048] a first locking member 300;

[0049] Cover plate 400;

[0050] Rotating release member 500;

[0051] Fixed seat 510; indicator bar 511;

[0052] Release button 520; Indication window 521;

[0053] Connecting screw 530; shoulder 531;

[0054] Steel wire 540;

[0055] Extension spring 550;

[0056] Support foot assembly 600;

[0057] Anti-pinch cover 610; glue reduction avoidance structure 611;

[0058] Support foot cover 620; support member 621; rib 6211;

[0059] Rotation locking member 700;

[0060] Base 800;

[0061] Locking groove 810.

[0062] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0064] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0065] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0066] Reference below Figures 1 to 17 The seat assembly and the child seat according to the embodiment of the present invention are described.

[0067] The seat assembly of the present invention includes a seat body, which includes a seat portion 100, a first locking member 300 and a cover plate 400. Figures 1 to 4 The upper surface of the seat portion 100 is recessed to form a recessed position 110. The first locking member 300 is disposed within the recessed position 110 and connected to the seat portion 100. The cover plate 400 is connected to the seat portion 100 and covers at least a portion of the upper end of the recessed position 110. A support rib 120 is formed on the upper surface of the seat portion 100. The support rib 120 increases the distance between the cover plate 400 and the first locking member 300 when the cover plate 400 is subjected to pressure. This increased distance compensates for the distance lost to the first locking member 300 due to excessive deformation of the cover plate 400, thereby preventing the cover plate 400 from excessively deforming and contacting the first locking member 300 within the recessed position 110, thereby ensuring safety. For example, when a child stands on the cover plate 400, due to the presence of the support ribs 120, the distance between the cover plate 400 and the first locking member 300 increases, so that even if the cover plate 400 undergoes a large deformation under force, it will not directly contact the first locking member 300 located in the recessed position 110, thereby avoiding the possibility of the child accidentally touching the locking member and greatly enhancing the safety of the seat assembly.

[0068] It will be appreciated that in some embodiments, the support ribs 120 not only provide support but can also be designed based on the material properties of the seat portion 100 to optimize support. For example, if the seat portion 100 is made of a softer material, the height of the support ribs 120 can be appropriately increased to compensate for deformation caused by the material's flexibility, further enhancing the stability of the cover plate 400. Furthermore, the design of the support ribs 120 can also take into account the aesthetics of the seat portion 100, ensuring that they maintain good support without affecting the overall appearance of the seat.

[0069] In some embodiments, the support rib 120 of the seat assembly surrounds the upper end of the recessed portion 110. The surrounding design of the support rib 120 can be such that the support rib 120 is only connected to a portion of the periphery of the upper end, the support rib 120 surrounds the entire periphery of the upper end, or the support rib 120 is divided into a plurality of spaced-apart sections that surround the periphery of the upper end.

[0070] When the support rib 120 is only connected to a portion of the periphery of the upper port, refer to Figures 1 to 4 Part of the recessed position 110 may be designed to be open, so that the user can directly reach the first locking member 300 to operate the first locking member 300. This design is more convenient and can improve the user experience.

[0071] When the support ribs 120 surround the entire perimeter of the upper port, or when the support ribs 120 are divided into a plurality of spaced-apart sections surrounding the perimeter of the upper port, this design allows for more uniform force distribution across the entire cover plate 400 when pressure is applied, effectively reducing localized excessive deformation. By surrounding the upper port of the recessed portion 110, the support ribs 120 fully cover the contact area between the cover plate 400 and the recessed portion 110. Even when the cover plate 400 is subjected to pressure from all directions, deformation due to localized excessive force, which could result in contact with the first locking member 300, further enhances the safety of the seat assembly.

[0072] It will be appreciated that, in some embodiments, the shape of the support ribs 120 can be adjusted based on the specific shape of the recessed portion 110 to ensure that the support ribs 120 can provide maximum support. For example, if the recessed portion 110 is irregularly shaped, the support ribs 120 can be designed to match the contour of the recessed portion 110 to better distribute the pressure on the cover plate 400 and ensure that the cover plate 400 is effectively supported in any position.

[0073] In some embodiments, the sidewalls of the support rib 120 are flush with the inner surface of the recessed portion 110, meaning that the support rib 120 is located along the periphery of the upper end along the recessed direction of the recessed portion 110. This design not only smoothes the junction between the support rib 120 and the seat portion 100, but also enhances the aesthetics of the recessed portion 110. Furthermore, because the cover plate 400 is abutted by the support rib 120, deformation of the cover plate 400 is minimized where the support rib 120 abuts the cover plate 400. Positioning the first locking member 300 within the recessed portion 110 near the support rib 120 reduces deformation of the cover plate 400 at that location. This reduces the likelihood of the cover plate 400 near the support rib 120 abutting against the first locking member 300. Consequently, this design effectively prevents children from accidentally touching the first locking member 300.

[0074] In addition, the flush design also helps to reduce the possibility of foreign matter entering between the upper surface of the seat portion 100 and the cover plate 400, thereby reducing the risk of damage to the cover plate 400 or the locking member due to foreign matter.

[0075] Reference Figure 4 In some embodiments, the height H of the support rib 120 protruding from the seat portion 100 satisfies the condition 2mm≤H≤5mm. For example, H can be 2mm, 3mm, 4mm, or 5mm. As a preferred embodiment, H is 3.5mm. The height of the support rib 120 is designed within this range to ensure that the cover plate 400 can effectively resist deformation under external forces, while not being too high to affect the overall comfort and aesthetics of the seat. When the height of the support rib 120 is set between 2mm and 5mm, it can effectively support the cover plate 400. Even if the cover plate 400 is deformed due to external pressure (such as when a child steps on it), it is sufficient to ensure that the cover plate 400 maintains a certain distance from the first locking member 300 located in the recessed position 110, preventing children from accidentally touching the locking member due to stepping on it, thereby improving the safety of the seat.

[0076] It will be appreciated that, in some embodiments, the height of the support ribs 120 should be designed not only to take into account the material properties of the cover panel 400, but also to consider the overall design of the chair to achieve optimal performance. For example, if the cover panel 400 is made of a softer material, the height of the support ribs 120 may need to be closer to 5 mm to provide sufficient support and prevent excessive deformation of the cover panel 400 due to external pressure. Conversely, if the cover panel 400 is made of a harder material, the height of the support ribs 120 can be appropriately reduced, for example, to closer to 2 mm, to provide necessary support while ensuring overall seat comfort.

[0077] Reference Figure 2In some embodiments, the seat assembly includes, in addition to the seat body, a backrest 200 connected to one side of the seat portion 100. The recessed portion 110 on the seat portion 100 has a trapezoidal opening. A first edge 111 of the trapezoid is located on the side of the seat portion 100 away from the backrest 200, while a second edge 112 is located on the side of the seat portion 100 closer to the backrest 200. The first edge 111 is longer than the second edge 112. This design creates a gradually narrowing space on the upper surface of the seat portion 100, providing sufficient space for the first locking member 300 disposed within the recessed portion 110 while maintaining a clean and tidy seat surface. Furthermore, this trapezoidal opening facilitates the installation of the cover panel 400, allowing it to fit snugly against the upper surface of the seat portion 100, reducing gaps caused by improper installation and further improving the safety and aesthetics of the seat.

[0078] It will be appreciated that in some embodiments, the size of the trapezoidal opening can be adjusted as needed to accommodate the installation of first locking members 300 or other components of varying sizes, thereby ensuring the functionality and practicality of the seat assembly. For example, the trapezoidal opening design is not limited to straight edges; it can also include curved edges or edges of other shapes. Furthermore, the backrest 200 can be connected to the seat portion 100 via a hinge or other suitable fastening method, allowing the backrest 200 to be adjusted in angle as needed. In practical applications, the trapezoidal opening design can also be adjusted to further optimize space utilization efficiency by adjusting the length ratio of the first edge 111 to the second edge 112.

[0079] Reference Figure 1 and Figure 2 In some embodiments, the support rib 120 of the seat assembly surrounds the second edge 112. This design not only allows the support rib 120 to have sufficient space for the cover plate 400 to abut, but also allows one side of the first edge 111 and the cover plate 400 to remain movable or open, making it easier for the user to reach out and operate the first locking member 300 from the first edge 111, where there is more space.

[0080] Reference Figures 1 to 4In some embodiments, the recessed position 110 in the seat assembly is recessed in a first direction, with the first plane perpendicular to the first direction. Along the first direction, the projection of the cover plate 400 on the first plane is a first projection, while the projection of the recessed position 110 on the first plane is a second projection. Furthermore, along the direction from the second edge 112 to the first edge 111, the length of the first projection is shorter than the length of the second projection. This design allows the recessed position 110 near the first edge 111 to be unobstructed by the cover plate 400, leaving more space on the side of the first edge 111. Providing an opening in this larger space facilitates a user reaching into the recessed position 110 through the opening near the first edge 111 to directly operate the first locking member 300, making the operation convenient and simple.

[0081] Specifically, the shorter length of the second edge 112 means that the recessed position 110 is relatively narrow on the side closer to the backrest 200, while the longer length of the first edge 111 means that the recessed position 110 is relatively spacious on the side farther from the backrest 200. This geometric design helps users more easily reach the first locking member 300. Furthermore, because the length of the first projection is shorter than the length of the second projection, the cover plate 400 leaves sufficient space at the first edge 111 for manual operation. The width of the cover plate 400 does not completely match the width of the recessed position 110, leaving space on the side of the first edge 111 for easier operation. It is understood that the cover plate 400 need only cover at least a portion of the first locking member 300; that is, the cover plate 400 does not need to completely cover the first locking member 300. It only needs to prevent children from accidentally triggering the first locking member 300 to meet the objectives of this application.

[0082] Reference Figures 1 to 4 In some embodiments, along the length or transverse direction of the first edge 111, the length of the first projection is greater than the length of the second projection. Specifically, the width of the cover plate 400 is greater than the width of the recessed portion 110, ensuring that the excess portion of the cover plate 400 is blocked by the upper surface of the seat portion 100 when deformed, preventing the cover plate 400 from contacting the first locking member 300. Designing the cover plate 400 to have a width greater than the width of the recessed portion 110 effectively prevents deformation of the cover plate 400 due to stepping or other external forces, which could result in contact with the first locking member 300. This design not only enhances the safety of the cover plate 400 but also improves the durability of the seat assembly.

[0083] Refer to the following Figures 1 to 4The structure of the seat assembly of the present application is systematically explained using a preferred embodiment. Specifically, the seat portion 100 has a recessed position 110, and the first locking member 300 is disposed within the recessed position 110. The upper end of the recessed position 110 is trapezoidal in shape, with the short side of the trapezoid located inwardly of the seat portion 100, i.e., close to the backrest 200, and the long side of the trapezoid located outwardly of the seat portion 100, i.e., away from the backrest 200. Support ribs 120 are disposed on the short side of the trapezoid, and the sidewalls of the support ribs 120 are flush with the inner wall of the recessed position 110, forming a continuous connection. The cover plate 400 is abutted by the support ribs 120, thereby preventing the first locking member 300 disposed in the recessed position 110 from being accidentally touched by children, thereby improving safety. Furthermore, the cover plate 400 is shorter than the upper end of the recessed portion 110, leaving one long side of the recessed portion 110 open. This arrangement facilitates the user's direct access to the first locking member 300 and its operation. The cover plate 400 is wider than the upper end of the recessed portion 110, so even if the cover plate 400 of the present application undergoes significant deformation, it remains supported by its contact with the upper surface of the seat portion 100 and does not sink into the recessed portion 110, thereby preventing it from interfering with the first locking member 300.

[0084] Reference Figures 5 to 8 In some embodiments, the seat assembly further includes a rotary locking member 700 and a rotary release member 500 interlocked with the rotary locking member 700. A locking groove 810 is provided on the base 800. The rotary release member 500 is provided on the seat portion 100. The rotary release member 500 is operated to drive the rotary locking member 700 out of the locking groove 810, thereby achieving rotational release of the seat relative to the base 800. The rotary release member 500 includes a fixed seat 510, a release button 520, a connecting screw 530, and a steel wire 540. The fixed seat 510 is connected to the seat portion 100 via the connecting screw 530. The release button 520 is slidably connected to the fixed seat 510. The direction in which the release button 520 slides relative to the fixed seat is parallel to the axis of the connecting screw. The steel wire 540 is connected to the release button 520. The release button 520 slides to lock or release the steel wire 540.

[0085] Connecting screw 530 includes a shoulder 531 with a smooth outer wall. Mounting base 510 has a positioning hole. Connecting screw 530 is inserted into the positioning hole, with the outer wall of shoulder 531 abutting the inner wall of the positioning hole. This design prevents the rotating release member 500 from twisting after the mounting base is screwed, which could affect the release button's rebound function. This ensures stable and reliable locking and unlocking of the seat assembly.

[0086] Specifically, to lock the seat assembly, the release button 520 moves along the axis of the connecting screw 530, driving the steel wire 540 to move, inserting it into a specific position and locking it. Conversely, to unlock the seat assembly, the release button 520 moves in the opposite direction along the axis of the connecting screw 530, moving the steel wire 540 out of the specific position and releasing it. In other words, the fixing base 510 can be referred to as a slider, which is fixed and immovable. The release button 520 can be referred to as a button housing, which is movable and drives the steel wire 540. The slider is provided with an indicator bar 511 (with red and green bars arranged vertically), and the button housing is provided with an indicator window 521. As the button housing moves up and down, the indicator window 521 corresponds to the indicator bar 511 in different positions, displaying either a red or green bar.

[0087] Regarding the connecting screw 530, it is understood that the connecting screw 530 is a shoulder screw. The diameter Φ1 of the mounting hole in the fixing base 510 for receiving the connecting screw 530 can be set to 4.5 mm to 5.5 mm, for example, Φ1 can be 4.5 mm, 4.8 mm, 5.0 mm, 5.2 mm, or 5.5 mm. In a preferred embodiment, Φ1 is configured to be 5.0 mm. The diameter Φ2 of the mounting hole in the button for receiving the connecting screw can be set to 2.0 mm to 3.0 mm, for example, Φ2 can be 2.0 mm, 2.3 mm, 2.5 mm, 2.7 mm, or 3.0 mm. In a preferred embodiment, Φ2 is configured to be 2.5 mm. Setting a larger Φ1 and a smaller Φ2 can help improve the rebound function of the rotation release member 500.

[0088] In some embodiments, the fixing base 510 defines an indicator window 521, and the release button 520 is provided with an indicator bar 511 of different colors. The release button 520 slides along the axis of the connecting screw 530 to switch the color of the indicator bar 511 exposed in the indicator window 521, thereby helping the user distinguish whether the rotary lock 700 is locked. For example, the rotary release 500 controls the rotation of the seat body, and the indicator bar 511 is composed of two parts: red and green. When the seat body is rotated to the locked state, the steel wire 540 restrains the rotary release 500 downward to the locked state, i.e., the indicator window 521 of the fixing base 510 displays green. When the seat body is rotated to the released state, the tension spring 550 and the steel wire 540 of the rotary release 500 jointly restrain the release button 520 in an upward position, i.e., the release button 520 is located at the top, and the indicator window 521 of the release button 520 displays red. If it cannot be locked, the color of the indicator bar 511 displayed in the indicator window 521 remains unchanged until the state is successfully switched, at which time the color displayed in the indicator window 521 changes. This also helps users judge the state of the seat body, thereby further ensuring the safety of the seat assembly of this application.

[0089] Reference Figures 1 to 17 In some embodiments, a child seat includes a seat assembly according to any of the aforementioned embodiments, the seat assembly comprising a seat body having a seat portion 100. The upper surface of the seat portion 100 is recessed to form a recessed position 110. A first locking member 300 is disposed in the recessed position 110 and connected to the seat portion 100. A cover plate 400 is connected to the seat portion 100 and covers at least a portion of the upper end of the recessed position 110. Furthermore, the seat assembly further comprises a backrest 200 connected to one side of the seat portion 100. The opening of the recessed position 110 is trapezoidal in shape. A first edge 111 of the trapezoid is located on the side of the seat portion 100 away from the backrest 200, and a second edge 112 of the trapezoid is located on the side of the seat portion 100 closer to the backrest 200. The length of the first edge 111 is greater than the second edge 112. The seat assembly also includes a rotary release member 500, which is mounted on the seat portion 100 and includes a fixed base 510, a release button 520, a connecting screw 530, and a steel wire 540. The fixed base 510 is connected to the seat portion 100 via the connecting screw 530. The release button 520 is slidably connected to the fixed base 510, with the release button 520 sliding parallel to the axis of the connecting screw 530. The steel wire 540 is connected to the release button 520, and the release button 520 slides to lock or release the steel wire 540. The connecting screw 530 includes a boss 531 with a smooth outer wall. The fixed base 510 has a positioning hole. The connecting screw 530 is inserted into the positioning hole, and the outer wall of the boss 531 abuts the inner wall of the positioning hole. These components of the seat assembly together constitute the basic structure and function of the seat, ensuring the basic usability and safety of the seat.

[0090] Reference Figures 9 to 17The child seat also includes a support leg assembly 600, which is connected to the seat portion 100. The support leg assembly 600 includes a support leg decorative cover 620 and an anti-pinch cover 610. The anti-pinch cover 610 is movable relative to the support leg decorative cover 620 so that the outer wall of the anti-pinch cover 610 abuts the inner wall of the support leg decorative cover 620. The anti-pinch cover 610 is mainly used to block the gap between the support leg decorative cover 620 and the support tube when the support leg is folded to prevent the hand from being pinched. When the support leg changes from a folded state to an unfolded state, the buffer ribs of the anti-pinch cover 610 will contact the decorative cover to form a buffering effect, thereby reducing the deployment and ejection speed of the support leg, thereby reducing impact force and noise. Specifically, the anti-pinch cover 610 is provided with a rubber-reducing avoidance structure 611, and the inner wall of the support leg decorative cover 620 suitable for being abutted by the anti-pinch cover 610 is provided with a support member 621, which can be a rib 6211. On the one hand, the ribs 6211 can improve the problem of the support foot cover 620 opening after the support foot cover 620 is pulled upward with force, that is, the strength of the support foot cover 620 is improved; on the other hand, this design enables the anti-pinch cover 610 to reduce the direct collision between the anti-pinch cover 610 and the support foot cover 620 through the support member 621 when the anti-pinch cover 610 moves relative to the support foot cover 620, thereby avoiding the noise and wear caused by sudden impact, and enhancing the comfort and durability of the child seat in actual use.

[0091] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A seat assembly, characterized in that: The seat body comprises: A seat portion, wherein an upper surface of the seat portion is concave to form a recessed position; a first locking member disposed in the recessed position and connected to the seat portion; a cover plate connected to the seat portion and covering at least a portion of the upper port of the recessed position; The upper surface is convex to form a support rib, and the cover plate abuts against the support rib.

2. The seat assembly according to claim 1, wherein: The supporting rib surrounds the upper port of the recessed position.

3. The seat assembly according to claim 2, wherein: The side wall of the supporting rib is flush with the inner surface of the recessed position.

4. The seat assembly according to claim 1, wherein: A height H of the support rib protruding from the seat portion satisfies: 2 mm ≤ H ≤ 5 mm.

5. The seat assembly according to claim 1, wherein: The seat assembly also includes a backrest, which is connected to one side of the seat portion. The opening of the recessed position is trapezoidal, with a first edge of the trapezoid located on the side of the seat portion away from the backrest, and a second edge of the trapezoid located on the side of the seat portion close to the backrest. The length of the first edge is greater than that of the second edge.

6. The seat assembly according to claim 5, wherein: The support rib surrounds the second edge.

7. The seat assembly according to claim 5, wherein: The concave direction of the concave position is a first direction, the first plane is perpendicular to the first direction, along the first direction, the projection of the cover plate on the first plane is a first projection, and the projection of the concave position on the first plane is a second projection; In which, along the direction from the second edge to the first edge, the length of the first projection is smaller than the length of the second projection.

8. The seat assembly according to claim 7, wherein: Along the length direction of the first edge, the length of the first projection is greater than that of the second projection.

9. The seat assembly according to claim 1, wherein: The seat assembly further includes a rotary release member, the rotary release member being provided on the seat portion, the rotary release member including a fixing seat, a release button, a connecting screw, and a steel wire, the fixing seat being connected to the seat portion via the connecting screw, the release button being slidably connected to the fixing seat, the release button sliding in a direction relative to the fixing seat being parallel to an axial direction of the connecting screw, the steel wire being connected to the release button, and the release button sliding to place the steel wire in a locked state or a released state; Wherein, the connecting screw includes a boss, the boss has a smooth outer peripheral wall, the fixing seat has a positioning hole, the connecting screw is passed through the positioning hole, and the outer peripheral wall of the boss fits the inner wall of the positioning hole.

10. A child seat comprising the seat assembly according to any one of claims 1 to 9, characterized in that: The child seat further comprises a support foot assembly connected to the seat portion, the support foot assembly comprising a support foot decorative cover and an anti-pinch cover, the anti-pinch cover being movable relative to the support foot decorative cover so that an outer wall of the anti-pinch cover abuts against an inner wall of the support foot decorative cover; Wherein, the inner wall of the supporting foot decorative cover adapted to be abutted by the anti-pinch cover is provided with a supporting piece.