Dinner plate assembly and child seat

Abstract

This application discloses a tray assembly and a child seat. The tray assembly, used in the child seat, includes a base, a tray, and an anti-slip mat. The tray is detachably connected to the base. The tray has a first wall and a second wall arranged opposite to each other. The second wall has a connecting structure, which includes a fixing post and a fixing ring. The fixing post, the fixing ring, and the second wall together define an annular space open at one end. The anti-slip mat includes a connecting part and an anti-slip part connected to each other. The connecting part is located within the annular space and has a connecting hole. The connecting hole is interference-fitted with the fixing post so that the anti-slip mat is connected to the tray. The anti-slip part is located outside the annular space and contacts the base. This design prevents the components connecting the tray and the base from detaching from the tray during the user's handling of the tray.

Description

Technical Field

[0001] This application relates to the technical field of children's chairs, and in particular to a tray assembly and a children's chair. Background Technology

[0002] The child car seat includes a frame, a seat assembly, and a tray assembly. The frame supports the seat assembly and tray assembly. The seat assembly is for the child to sit on, and the tray assembly is for holding food for the child to eat. The tray assembly includes a base and a tray detachably connected to the base. The base has a downward-facing recessed cavity with an upward-facing opening, within which the tray is placed. The tray is used to hold food, and after use, it can be removed from the base for easy cleaning.

[0003] In related technologies, a suction cup connects the plate to the base, with one end of the suction cup attached to the lower surface of the plate and the other end adhering to the base. The suction cup prevents the plate from shifting laterally relative to the base. To remove the plate from the base, simply pull it upwards. However, during this upward pulling process, the suction cup is prone to detaching from the plate due to its suction force, requiring the user to reinstall it, which is inconvenient. Summary of the Invention

[0004] The main purpose of this application is to provide a plate assembly and a child seat that can prevent the part connecting the plate and the base from detaching from the plate when the user picks up the plate.

[0005] To achieve the above objectives, this application provides a tray assembly for a child car seat, the tray assembly comprising:

[0006] Base;

[0007] The plate is detachably connected to the base. The plate has a first wall and a second wall arranged opposite to each other. The first wall defines a first cavity for holding food. The second wall is provided with a connecting structure, which includes a fixing post and a fixing ring. One end of the fixing post and one end of the fixing ring are both connected to the second wall. The fixing ring is arranged around the fixing post, and the fixing post, the fixing ring and the second wall together define an annular space that is open at one end.

[0008] An anti-slip mat includes a connecting portion and an anti-slip portion connected to each other. The connecting portion is located within the annular space and has a connecting hole. The connecting hole is interference-fitted with the fixing post so that the anti-slip mat is connected to the plate. The anti-slip portion is located outside the annular space and contacts the base.

[0009] In some embodiments, the outer peripheral wall of the fixing column is a first peripheral wall, and the outer peripheral wall of the connecting part is a second peripheral wall. The diameter of the first peripheral wall is less than half the diameter of the second peripheral wall. The diameter R1 of the first peripheral wall satisfies: 4mm≤R1≤5mm; the diameter R2 of the second peripheral wall satisfies: 8mm≤R2≤10mm.

[0010] The inner circumferential wall of the fixing ring is a third circumferential wall, and the diameter of the first circumferential wall is less than half the diameter of the third circumferential wall.

[0011] The connecting part is interference-fitted with the fixing ring, and the diameter R3 of the third peripheral wall satisfies: 8mm≤R3≤10mm;

[0012] Along the axial direction of the fixed column, the length dimension L1 of the fixed column satisfies: 1mm≤L1≤4mm, the length dimension L2 of the connecting part satisfies: 1mm≤L2≤4mm, and the length dimension L3 of the fixed ring satisfies: 1mm≤L3≤4mm.

[0013] In some embodiments, the plane perpendicular to the axis of the connecting hole is a projection plane, the connecting part forms a first orthographic projection on the projection plane, the anti-slip part forms a second orthographic projection on the projection plane, the area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the first orthographic projection, and the first orthographic projection covers the second orthographic projection.

[0014] The fixing ring forms a third orthographic projection on the projection plane, the area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the third orthographic projection, and the third orthographic projection covers the second orthographic projection;

[0015] The connecting part has a third wall surface facing the anti-slip part, the anti-slip part is connected to the middle of the third wall surface, and the junction of the outer peripheral wall of the anti-slip part and the third wall surface forms a rounded chamfer.

[0016] The connecting hole passes through the anti-slip part, and the connecting part is integrally connected to the anti-slip part.

[0017] In some embodiments, the first peripheral wall is provided with a plurality of protrusions, and each of the protrusions is evenly distributed on the first peripheral wall along the circumferential direction;

[0018] The fixing column has a central hole inside, the axis of which coincides with the axis of the first peripheral wall, and the central hole passes through the end of the fixing column away from the second wall surface;

[0019] The second wall has four corners, and the number of the four connecting structures is four, with each of the four connecting structures corresponding to one of the four corners;

[0020] The number of anti-slip pads is four, and the four anti-slip pads are connected one-to-one with the four connecting structures.

[0021] In some embodiments, the base includes an upper housing and a lower housing, the upper housing and the lower housing being connected and together defining a receiving cavity, the receiving cavity being provided with an adjusting steel wire;

[0022] The upper housing has a fourth wall surface facing away from the lower housing and a fifth wall surface facing the lower housing. The fourth wall surface defines a second cavity for accommodating the plate. The anti-slip portion is disposed between the fourth wall surface and the plate.

[0023] The fifth wall surface is connected to a fixing rib for abutting the adjusting steel wire. The fixing rib includes a first rib plate, a second rib plate, and a third rib plate. The first rib plate is disposed between the second rib plate and the third rib plate, and the first rib plate is perpendicularly connected to the second rib plate and the third rib plate respectively.

[0024] In some embodiments, the second rib has a first recessed portion recessed in the direction of approaching the fourth wall, and the third rib has a second recessed portion recessed in the direction of approaching the fourth wall. The adjusting wire is at least partially embedded in the first recessed portion and the second recessed portion, and the adjusting wire abuts against the second rib and the third rib respectively.

[0025] The lowest point of the first recess is located in the middle of the second rib, the lowest point of the second recess is located in the middle of the third rib, one end of the first rib is connected to the middle of the second rib, and the other end is connected to the middle of the third rib, and the adjusting wire abuts against the first rib.

[0026] Along the direction perpendicular to the fifth wall, the maximum depth H1 of the first recess and the maximum dimension H2 of the second rib satisfy: 2H1≥H2; the maximum depth H3 of the second recess and the maximum dimension H4 of the third rib satisfy: 2H3≥H4.

[0027] The fifth wall surface is connected to a plurality of the fixing ribs, and each fixing rib is connected to the adjusting steel wire.

[0028] An embodiment of the second aspect of this application also provides a child seat, comprising:

[0029] The plate assembly described in any of the above items;

[0030] The frame includes a front support, a rear support, and an armrest support. The front support and the rear support are rotatably connected. The armrest support is connected to the upper end of the front support. The plate assembly is connected to the end of the armrest support opposite to the front support.

[0031] A seat assembly is connected to the armrest support and the front foot support, and the seat assembly defines a seating position.

[0032] In some embodiments, the seat plate assembly includes a base plate, the lower wall of the base plate is connected to a connecting pipe, the lower wall of the base plate is provided with a sixth rib and a seventh rib, the sixth rib and the seventh rib are arranged opposite each other at a distance, and the connecting pipe is at least partially disposed in the space between the sixth rib and the seventh rib.

[0033] The lower wall of the base plate is also provided with an eighth rib and a ninth rib. The eighth rib and the ninth rib are both located between the sixth rib and the seventh rib and are arranged opposite to each other at intervals. The distance between the eighth rib and the sixth rib is less than 4.5 mm, and the distance between the ninth rib and the seventh rib is less than 4.5 mm.

[0034] Along the direction perpendicular to the lower wall surface, the height dimension of the eighth rib is smaller than that of the sixth rib, and the height dimension of the ninth rib is smaller than that of the seventh rib.

[0035] In some embodiments, the front foot support includes a front foot tube, the upper end of which is fitted with a front foot cover plate, the front foot cover plate includes a first threaded post, the bottom of which is crater-shaped, and a retraction button is provided inside the front foot cover plate, the retraction button including a second threaded post, the bottom of which is crater-shaped.

[0036] In some embodiments, the child seat further includes a hinge assembly, the front leg support includes a front leg tube, the rear leg support includes a rear leg tube, the hinge assembly includes a front leg sleeve and a rear leg sleeve, the front leg sleeve is connected to the front leg tube, the rear leg sleeve is sleeved on the upper end of the rear leg tube, and the rear leg sleeve is hinged to the front leg sleeve.

[0037] The rear foot sleeve defines a receiving groove with one end open. The receiving groove is provided with a fourth rib and a fifth rib arranged opposite to each other. The fourth rib and the fifth rib both extend along the depth direction of the receiving groove, and the length direction of the fourth rib and the fifth rib is perpendicular to the rotation axis of the rear foot sleeve relative to the front foot sleeve. The wall surface of the fourth rib facing the fifth rib is arc-shaped and fits the outer wall surface of the front foot tube. The wall surface of the fifth rib facing the fourth rib is arc-shaped and fits the outer wall surface of the front foot tube.

[0038] Along the depth direction of the receiving groove, the width of the rear foot sleeve is greater than half the outer diameter of the rear foot tube.

[0039] Compared with the prior art, the beneficial effects of this application are:

[0040] In the technical solution of this application, the plate assembly includes a base, a plate, and an anti-slip mat. The plate is detachably connected to the base via the anti-slip mat. A connecting structure is connected to the second wall of the plate, including a fixing post and a fixing ring. The fixing post, fixing ring, and the second wall together define an annular space open at one end. The connecting part of the anti-slip mat is interference-fitted with the fixing post, thereby connecting the anti-slip mat to the plate. The anti-slip part of the anti-slip mat contacts the base, thereby increasing the friction with the base and preventing the plate from sliding laterally relative to the base. In this solution, compared to the structure that uses suction cups to fix the plate and the base, the structure that uses an anti-slip pad to fix the plate and the base only alleviates the relative displacement of the plate and the base in the lateral direction. It does not generate vertical suction force. On the one hand, users do not need to pull upwards when picking up the plate, making the plate picking process more convenient. On the other hand, the anti-slip pad is not easy to fall off the plate during the process of picking up the plate (in the existing technology, the suction cup will fall off the plate due to the suction force). Therefore, the anti-slip pad does not need to be frequently reinstalled due to the anti-slip pad falling off every time the plate is picked up, making the operation more convenient.

[0041] Furthermore, in this application, the outer peripheral wall of the fixing post is the first peripheral wall, and the outer peripheral wall of the connecting part is the second peripheral wall, and the diameter of the first peripheral wall is less than half the diameter of the second peripheral wall. In this design, the radial dimension of the fixing post is smaller than the radial dimension of the connecting part, which makes the radial dimension of the connecting hole smaller than the radial dimension of the connecting part, and the volume of the deformable part of the connecting part is relatively larger. This makes it difficult for the anti-slip pad to deform and detach from the fixing post after long-term use, thus extending the service life of the anti-slip pad.

[0042] Furthermore, in this application, a fixing ring is provided around the outer periphery of the fixing column, so that when the plate is used, foreign objects (solid or liquid) can be blocked by the fixing ring and thus are not likely to flow into the gap between the connecting part and the second wall surface and between the connecting part and the fixing column, thereby making it less likely for bacteria to grow and making the use of the plate safer. Attached Figure Description

[0043] 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.

[0044] Figure 1 This is a first perspective view of a child seat according to an embodiment of this application;

[0045] Figure 2 This is a second perspective view of a child seat according to one embodiment of this application;

[0046] Figure 3 This is a perspective view of a plate in one embodiment of this application;

[0047] Figure 4 Figure 3 A magnified view of a portion of point A in the middle;

[0048] Figure 5 This is a bottom view of a plate in one embodiment of this application;

[0049] Figure 6 This is a perspective view of an anti-slip mat in one embodiment of this application;

[0050] Figure 7 This is a cross-sectional schematic diagram of an anti-slip mat in one embodiment of this application;

[0051] Figure 8 This is a cross-sectional schematic diagram of the connection structure in one embodiment of this application;

[0052] Figure 9 This is a perspective view of the upper shell in one embodiment of this application;

[0053] Figure 10 This is a perspective view of the fixing rib in one embodiment of this application;

[0054] Figure 11 This is a bottom view of the upper housing in one embodiment of this application;

[0055] Figure 12 This is a bottom view of the fixing rib in one embodiment of this application;

[0056] Figure 13 This is a perspective view of the base plate assembly in one embodiment of this application;

[0057] Figure 14 for Figure 13 A magnified view of a portion of point B in the middle;

[0058] Figure 15 This is a first perspective view of the rear foot cover in one embodiment of this application;

[0059] Figure 16 This is a second perspective view of the rear foot sleeve in one embodiment of this application;

[0060] Figure 17 This is a test schematic diagram of the front foot cover plate in one embodiment of this application;

[0061] Figure 18 This is a side view of the retractable button in one embodiment of this application.

[0062] Explanation of icon numbers:

[0063] 10 child seats;

[0064] Plate assembly 100; base 110; upper shell 111; fifth wall surface 1112; lower shell 112; fixing rib 114; first rib plate 1141; second rib plate 1142; first recess 11421; third rib plate 1143; second recess 11431; plate 120; first wall surface 121; second wall surface 122; first cavity 123; connecting structure 124; fixing post 1241; first peripheral wall 12411; fixing ring 1243; third peripheral wall 12431; annular space 1244; anti-slip pad 130; connecting part 131; connecting hole 1311; second peripheral wall 1312; third wall surface 1313; anti-slip part 132;

[0065] Frame 200; Front leg support 210; Front leg tube 211; Rear leg support 220; Rear leg tube 221; Handrail support 230;

[0066] Seat plate assembly 300; base plate 310; sixth rib 320; seventh rib 330; eighth rib 340; ninth rib 350;

[0067] Hinged assembly 400; front foot sleeve 410; rear foot sleeve 420; receiving groove 421; fourth rib 430; fifth rib 440;

[0068] Front foot cover plate 500; First threaded post 510;

[0069] Retractable button 600; Second threaded post 610.

[0070] 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

[0071] 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.

[0072] The child car seat includes a frame, a seat assembly, and a tray assembly. The frame supports the seat assembly and tray assembly. The seat assembly is for the child to sit on, and the tray assembly is for holding food for the child to eat. The tray assembly includes a base and a tray detachably connected to the base. The base has a downward-facing recessed cavity with an upward-facing opening, within which the tray is placed. The tray is used to hold food, and after use, it can be removed from the base for easy cleaning.

[0073] In related technologies, a suction cup connects the plate to the base, with one end of the suction cup attached to the lower surface of the plate and the other end adhering to the base. The suction cup prevents the plate from shifting laterally relative to the base. To remove the plate from the base, simply pull it upwards. However, during this upward pulling process, the suction cup is prone to detaching from the plate due to its suction force, requiring the user to reinstall it, which is inconvenient.

[0074] In view of this, see Figures 1-18 This application provides a tray assembly 100 for use in a child seat 10. The child seat 10 includes a frame 200, a seat assembly 300, and the tray assembly 100. The tray assembly 100 is connected to the frame 200. See details. Figures 1-6 The plate assembly 100 includes a base 110, a plate 120, and an anti-slip mat 130.

[0075] The base 110 is connected to the frame 200 of the child seat 10 and is used to support and fix the plate 120. The specific structure of the base 110 depends on the actual needs, and it only needs to be able to support and fix the plate 120. The specific structure of the base 110 is described in detail below.

[0076] See Figure 1-3 The plate 120 is detachably connected to the base 110. The plate 120 is connected to the base 110 during use and can be separated from the base 110 when cleaning is required. The plate 120 has a first wall 121 and a second wall 122 arranged opposite to each other. The first wall 121 defines a first cavity 123 for holding food. The plate 120 also includes a connecting structure 124 disposed on the second wall 122, which includes a fixing post 1241 and a fixing ring 1243. See details. Figures 3-6One end of the fixing post 1241 and one end of the fixing ring 1243 are both connected to the second wall surface 122. The fixing ring 1243 is arranged around the fixing post 1241, and the fixing post 1241, the fixing ring 1243, and the second wall surface 122 together define an annular space 1244 with one end open. This annular space 1244 can be a rectangular annular space 1244, a circular annular space 1244, or an elliptical annular space 1244. In this embodiment, the annular space 1244 is described as a circular annular space 1244.

[0077] See Figures 6-8 The anti-slip mat 130 includes a connecting portion 131 and an anti-slip portion 132 connected to each other. The connecting portion 131 is located within the annular space 1244 and has a connecting hole 1311. The connecting hole 1311 is interference-fitted with the fixing post 1241 so that the anti-slip mat 130 is connected to the plate 120. The anti-slip portion 132 is located outside the annular space 1244 and contacts the base 110. The anti-slip portion 132 can be made of a material with a high coefficient of friction, such as rubber or plastic. When the connecting portion 131 is connected to the fixing post 1241 and the anti-slip portion 132 contacts the base 110, the anti-slip portion 132 can effectively alleviate the problem of lateral displacement of the plate 120 relative to the base 110.

[0078] In this embodiment, compared to the structure that uses a suction cup to fix the plate 120 and the base 110, the structure that uses an anti-slip pad 130 to fix the plate 120 and the base 110 only alleviates the relative displacement of the plate 120 and the base 110 in the lateral direction. It does not generate vertical suction. On the one hand, the user does not need to pull upwards when picking up the plate 120, making the process of picking up the plate 120 more convenient. On the other hand, the anti-slip pad 130 is less likely to fall off the plate 120 during the process of picking up the plate 120 (in the prior art, the suction cup will fall off the plate 120 due to the suction force). Therefore, the anti-slip pad 130 does not need to be frequently installed because it will fall off every time the plate 120 is picked up, making the operation more convenient.

[0079] In this embodiment, the outer peripheral wall of the fixing post 1241 is the first peripheral wall 12411, and the outer peripheral wall of the connecting part 131 is the second peripheral wall 1312. The diameter of the first peripheral wall 12411 is less than half the diameter of the second peripheral wall 1312. For example, the diameter of the first peripheral wall 12411 can be five-twelfths, one-thirds, one-quarters, one-fifth, or one-sixth of the diameter of the second peripheral wall 1312. In this design, the radial dimension of the fixing post 1241 is smaller than the radial dimension of the connecting part 131, making the radial dimension of the connecting hole 1311 smaller than the radial dimension of the connecting part 131. This results in a relatively larger volume for the deformable portion of the connecting part 131, making it less likely for the anti-slip pad 130 to deform and detach from the fixing post 1241 after long-term use, thus extending the service life of the anti-slip pad 130. Furthermore, since a fixing ring 1243 is provided around the outer periphery of the fixing post 1241, when the plate 120 is in use, foreign objects (solid or liquid) can be blocked by the fixing ring 1243, making it less likely for them to flow into the gap between the connecting part 131 and the second wall surface 122, and between the connecting part 131 and the fixing post 1241, thus making it less likely for bacteria to grow and making the use of the plate 120 safer.

[0080] In some embodiments, the diameter R1 of the first peripheral wall 12411 satisfies: 4mm ≤ R1 ≤ 5mm. For example, R1 can be 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, or 5mm, etc. The diameter R2 of the second peripheral wall 1312 satisfies: 8mm ≤ R2 ≤ 10mm. For example, R2 can be 8mm, 8.5mm, 9mm, 9.5mm, or 10mm, etc. In this solution, when R1 and R2 meet the above dimensional requirements, the dimensions of the fixing post 1241 and the connecting part 131 are not too large, thus avoiding material waste, and the connection between the fixing post 1241 and the connecting part 131 is not unreliable due to excessively small dimensions.

[0081] See Figures 4-8 In some embodiments, the inner peripheral wall of the fixing ring 1243 is a third peripheral wall 12431, and the diameter of the first peripheral wall 12411 is less than half the diameter of the third peripheral wall 12431. In other words, the outer diameter of the annular space 1244 is more than twice the inner diameter. This design provides sufficient space for the connecting portion 131, allowing the connecting portion 131 to have a relatively larger volume and making it less prone to deformation that could lead to connection failure with the fixing post 1241.

[0082] The connecting part 131 can be clearance-fitted or interference-fitted with the fixing ring 1243. In this embodiment, the connecting part 131 and the fixing ring 1243 are interference-fitted, and the diameter R3 of the third peripheral wall 12431 satisfies: 8mm≤R3≤10mm. For example, R3 can be 8mm, 8.5mm, 9mm, 9.5mm, or 10mm, etc. In this solution, the fixing ring 1243 can apply pressure from the outer periphery to the inward of the connecting part 131, and the fixing post 1241 can apply pressure from the inner periphery to the outward of the connecting part 131. On the one hand, this makes the connection between the connecting part 131 and the connecting structure 124 more reliable, and on the other hand, it can further alleviate the problem of the connecting part 131 deforming and failing to connect with the fixing post 1241.

[0083] See Figures 4-8 In some embodiments, along the axial direction of the fixing post 1241, the length L1 of the fixing post 1241 satisfies: 1mm ≤ L1 ≤ 4mm. For example, L1 can be 1mm, 2mm, 3mm, or 4mm, etc. The length L2 of the connecting part 131 satisfies: 1mm ≤ L2 ≤ 4mm. For example, L2 can be 1mm, 2mm, 3mm, or 4mm, etc. The length L3 of the fixing ring 1243 satisfies: 1mm ≤ L3 ≤ 4mm. For example, L3 can be 1mm, 2mm, 3mm, or 4mm, etc. In this solution, the connection stability of the plate 120 is not reduced due to the excessive length of the fixing post 1241, fixing ring 1243, and connecting part 131, nor is it difficult for the connecting part 131 and the fixing post 1241 to fit well due to the excessive length of the fixing post 1241, fixing ring 1243, and connecting part 131.

[0084] In some embodiments, the plane perpendicular to the axis of the connecting hole 1311 is the projection plane. The connecting portion 131 forms a first orthographic projection on the projection plane, and the anti-slip portion 132 forms a second orthographic projection on the projection plane. The area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the first orthographic projection, and the first orthographic projection covers the second orthographic projection. In this embodiment, the transverse cross-section of the anti-slip portion 132 is smaller, thereby facilitating the assembly of the anti-slip pad 130. In some embodiments, the fixing ring 1243 forms a third orthographic projection on the projection plane. The area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the third orthographic projection, and the third orthographic projection covers the second orthographic projection. In this embodiment, when viewed along a direction parallel to the axis of the connecting hole 131, the fixing ring 1243 covers the anti-slip portion 132, so that when the anti-slip pad 130 is supported, the anti-slip portion 132 can compress the connecting portion 131, causing the connecting portion 131 to undergo a certain elastic deformation, thereby filling the annular space within the fixing ring 1243, improving the connection reliability between the connecting portion 131 and the fixing ring 1243.

[0085] See Figures 4-8In some embodiments, the connecting portion 131 has a third wall surface 1313 facing the anti-slip portion 132, the anti-slip portion 132 is connected to the middle of the third wall surface 1313, and a rounded chamfer is formed at the junction of the outer peripheral wall of the anti-slip portion 132 and the third wall surface 1313. This design reduces stress concentration between the connecting portion 131 and the anti-slip portion 132, thus improving the service life of the anti-slip pad 130. In some embodiments, the connecting portion 131 and the anti-slip portion 132 can be two separately manufactured and assembled structures. In this embodiment, the connecting portion 131 and the anti-slip portion 132 are integrally formed, reducing the processing cost of the anti-slip pad 130. In some embodiments, the connecting hole 1311 may penetrate only the connecting portion 131 and not the anti-slip portion 132. In this embodiment, the connecting hole 1311 penetrates the anti-slip part 132, which facilitates the processing and manufacturing of the connecting hole 1311 and makes it easier for the connecting part 131 to be assembled with the fixing post 1241 (when the connecting hole 1311 only penetrates the connecting part 131, air pressure will be generated in the connecting hole 1311 during the assembly process of the connecting part 131 and the fixing post 1241, and the air pressure will prevent the fixing post 1241 from penetrating into the connecting hole 1311).

[0086] In some embodiments, the first peripheral wall 12411 is provided with a plurality of protrusions, each protrusion being evenly distributed along the circumference of the first peripheral wall 12411. In this embodiment, after the connecting part 131 and the fixing post 1241 are interference-fitted, each protrusion can compress the wall of the connecting hole 1311, thereby causing the wall of the connecting hole 1311 to be compressed to form a groove. Each protrusion is correspondingly embedded in its respective groove. The fit between the protrusion and the groove makes the connection between the connecting part 131 and the fixing post 1241 more reliable. The specific structure of the protrusion depends on the actual needs. In this embodiment, the protrusion can be hemispherical. The specific arrangement of each protrusion depends on the actual needs. In this embodiment, multiple rows of protrusions are arranged along the circumference of the first peripheral wall 12411. The intervals between each row of protrusions are equal. Each row of protrusions has multiple protrusions arranged at intervals along the axial direction of the first peripheral wall 12411. The protrusions in the same row are arranged at equal intervals.

[0087] Fixed column 1241 can be a solid column or a hollow column, see [reference]. Figures 4-7 In some embodiments, the fixing post 1241 has a central hole inside, the axis of which coincides with the axis of the first peripheral wall 12411, and the central hole passes through the end of the fixing post 1241 away from the second wall 122. The central hole can save manufacturing materials and is also more conducive to injection molding, preventing the problem of collapse during cooling due to excessive material thickness at the location of the fixing post 1241.

[0088] See Figures 3-8The second wall surface 122 may be provided with multiple connecting structures 124. Specifically, in this embodiment, the second wall surface 122 is provided with four connecting structures 124, and the second wall surface 122 has four corners, with the four connecting structures 124 correspondingly located at the four corners. There are four anti-slip pads 130, which are connected one-to-one to the four connecting structures 124. This solution can improve the stability of the connection between the plate 120 and the base 110, further preventing the plate 120 from sliding laterally relative to the base 110.

[0089] See Figures 1-2 ,as well as Figures 9-12 In some embodiments, the base 110 includes an upper housing 111 and a lower housing 112, which are connected and together define a receiving cavity. The upper housing 111 has a fourth wall facing away from the lower housing 112 and a fifth wall 1112 facing the lower housing 112. The fourth wall defines a second recess for receiving a plate 120, and an anti-slip portion 132 is disposed between the fourth wall and the plate 120. An adjusting wire is provided in the receiving cavity between the upper housing 111 and the lower housing 112, which can be used to adjust the relative position of the base 110 relative to the frame 200. In related technologies, the arrangement position of the adjusting wire in the base 110 is not fixed, making it difficult to effectively limit its movement. In this embodiment, the fifth wall surface 1112 is connected to a fixing rib 114 for abutting the adjusting steel wire. The fixing rib 114 includes a first rib plate 1141, a second rib plate 1142, and a third rib plate 1143. The first rib plate 1141 is disposed between the second rib plate 1142 and the third rib plate 1143, and the first rib plate 1141 is perpendicularly connected to the second rib plate 1142 and the third rib plate 1143 respectively. The fixing rib 114 can abut the adjusting steel wire, thereby effectively limiting the adjustment steel wire. The number of fixing ribs 114 can be one or more. When there are multiple fixing ribs 114, each fixing rib 114 can abut one adjusting steel wire, or each fixing rib 114 can abut different adjusting steel wires. The following is an example of the structure of one fixing rib 114.

[0090] See Figures 9-12Specifically, in some embodiments, the second rib 1142 has a first recess 11421 recessed towards the fourth wall surface, and the first recess 11421 may be semi-circular. The third rib 1143 has a second recess 11431 recessed towards the fourth wall surface, and the second recess 11431 may be semi-circular. The adjusting wire is at least partially embedded in the first recess 11421 and the second recess 11431, and the adjusting wire abuts against the second rib 1142 and the third rib 1143 respectively. In this design, the structural arrangement of the first recess 11421 and the second recess 11431 makes it difficult for the adjusting wire to detach from the fixing rib 114, thereby achieving effective limiting of the adjusting wire.

[0091] In some embodiments, the lowest point of the first recess 11421 is located at the middle of the second rib 1142, and the lowest point of the second recess 11431 is located at the middle of the third rib 1143. One end of the first rib 1141 is connected to the middle of the second rib 1142, and the other end is connected to the middle of the third rib 1143. The adjusting wire abuts against the first rib 1141. In this design, the first rib 1141 can provide supporting force to the adjusting wire, thereby making the limiting of the adjusting wire more stable.

[0092] See Figures 9-12 In some embodiments, along the direction perpendicular to the fifth wall surface 1112, the maximum depth H1 of the first recess 11421 and the maximum dimension H2 of the second rib 1142 satisfy: 2H1≥H2. In other words, twice the depth of the first recess 11421 is greater than the vertical width of the second rib 1142. The maximum depth H3 of the second recess 11431 and the maximum dimension H4 of the third rib 1143 satisfy: 2H3≥H4. In other words, twice the depth of the second recess 11431 is greater than the vertical width of the third rib 1143. In this scheme, the depth of the adjusting wire is larger, and the fixing rib 114 has better wrapping properties for the adjusting wire, thus providing a better limiting effect for the adjusting wire.

[0093] See Figures 1-18 The second aspect of this application also provides a child seat 10, which includes the tray assembly 100, frame 200 and seat assembly 300 in any of the above embodiments.

[0094] The frame 200 includes a front leg support 210, a rear leg support 220, and an armrest support 230. The front leg support 210 and the rear leg support 220 are rotatably connected, the armrest support 230 is connected to the upper end of the front leg support 210, and the tray assembly 100 is connected to the end of the armrest support 230 opposite to the front leg support 210. When the child seat 10 is in use, the rear leg support 220 can be driven to rotate relative to the front leg support 210 to the open position (i.e., Figures 1-2 As shown in the diagram, when the child seat 10 is not in use, the rear leg support 220 can be rotated relative to the front leg support 210 to stack the two, thereby reducing the space occupied and facilitating storage. The seat assembly 300 is supported by the frame 200. Specifically, the seat assembly 300 can be connected to the armrest support 230 and the front leg support 210, defining a seating position for the child to sit in.

[0095] See Figures 1-2 ,as well as Figures 13-17 In some embodiments, the child seat 10 further includes a hinge assembly 400, which includes a front footrest 410 and a rear footrest 420. The front footrest 210 includes a front foot tube 211, and the rear footrest 220 includes a rear foot tube 221. Specifically, both the front foot tube 211 and the rear foot tube 221 can be U-shaped tubes. The front footrest 410 is connected to the front foot tube 211, and the rear footrest 420 is fitted onto the upper end of the rear foot tube 221 (when the rear foot tube 221 is a U-shaped tube, the rear footrest 420 is fitted onto one end of the rear foot tube 221). The rear footrest 420 is hinged to the front footrest 410, thereby achieving the hinge connection between the rear foot tube 221 and the front foot tube 211. The number of front foot sleeves 410 and rear foot sleeves 420 can both be two. One front foot sleeve 410 is connected to the middle position of each side of the front foot tube 211, and two rear foot sleeves 420 are connected to the two upper ends of the rear foot tube 221. The two front foot sleeves 410 and the two rear foot sleeves 420 are hinged one-to-one.

[0096] See Figures 1-2 as well as Figures 13-17In some embodiments, the rear foot sleeve 420 defines a receiving groove 421 with one end open. The receiving groove 421 is provided with a fourth rib 430 and a fifth rib 440 arranged opposite to each other. Both the fourth rib 430 and the fifth rib 440 are zero-degree ribs. Both the fourth rib 430 and the fifth rib 440 extend along the depth direction of the receiving groove 421, and the length direction of the fourth rib 430 and the fifth rib 440 are perpendicular to the rotation axis of the rear foot sleeve 420 relative to the front foot sleeve 410. The wall surface of the fourth rib 430 facing the fifth rib 440 is arc-shaped and fits the outer wall surface of the front foot tube 211. The wall surface of the fifth rib 440 facing the fourth rib 430 is arc-shaped and fits the outer wall surface of the front foot tube 211. In this design, on the one hand, the structure of the fourth rib 430 and the fifth rib 440 can increase the structural strength of the rear rubber sleeve. On the other hand, the fourth rib 430 and the fifth rib 440 can fit tightly with the rear foot tube 221, effectively preventing relative shaking between the rear foot tube 221 and the rear rubber sleeve, and enhancing the connection reliability between the rear foot tube 221 and the rear foot sleeve 420.

[0097] In some embodiments, along the depth direction of the receiving groove 421, the width of the rear foot sleeve 420 is greater than half the outer diameter of the rear foot tube 221. This design enables the rear rubber sleeve to be well fixed to the rear foot tube 221, further improving the connection reliability between the rear foot tube 221 and the rear foot sleeve 420.

[0098] See Figures 1-2 as well as Figures 13-17In some embodiments, the seat plate assembly 300 includes a base plate 310, the lower wall of the base plate 310 is connected to a connecting pipe, the lower wall of the base plate 310 is provided with a sixth rib 320 and a seventh rib 330, the sixth rib 320 and the seventh rib 330 are arranged opposite each other at a distance, and the connecting pipe is at least partially disposed in the space between the sixth rib 320 and the seventh rib 330. The lower wall of the base plate 310 is also provided with an eighth rib 340 and a ninth rib 350. The eighth rib 340 and the ninth rib 350 are both disposed between the sixth rib 320 and the seventh rib 330 and are arranged opposite to each other at intervals. The distance between the eighth rib 340 and the sixth rib 320 is less than 4.5 mm. For example, the distance between the eighth rib 340 and the sixth rib 320 can be 4.5 mm, 4.4 mm, 4.3 mm, 4.2 mm, 4.1 mm or 4.0 mm. The distance between the ninth rib 350 and the seventh rib 330 is less than 4.5 mm. For example, the distance between the ninth rib 350 and the seventh rib 330 can be 4.5 mm, 4.4 mm, 4.3 mm, 4.2 mm, 4.1 mm or 4.0 mm. In this scheme, compared to the structure in which the lower wall of the base plate 310 is only provided with the sixth rib 320 and the seventh rib 330, the addition of the eighth rib 340 and the ninth rib 350 can improve the structural strength of the base plate 310 on the one hand, and reduce the potential problem of the base plate 310 sinking or denting on the other hand.

[0099] In some embodiments, along the direction perpendicular to the lower wall surface, the height dimension of the eighth rib 340 is smaller than the height dimension of the sixth rib 320, and the height dimension of the ninth rib 350 is smaller than the height dimension of the seventh rib 330. This design prevents the eighth rib 340 and the ninth rib 350 from interfering with the assembly of the horizontal tube, while also preventing accidental contact by the user due to outward protrusion, thereby improving the user experience.

[0100] See Figures 1-2 as well as Figures 13-18 In some embodiments, the front support 210 includes a front leg tube 211, the upper end of which is fitted with a front leg cover plate 500. The front leg cover plate 500 includes a first threaded post 510, the bottom of which is crater-shaped. This design can improve the problem of shrinkage of the front leg cover plate 500 after injection molding at the threaded post position. A retraction button 600 is provided inside the front leg cover plate 500. The retraction button 600 includes a second threaded post 610, the bottom of which is crater-shaped. This design can improve the problem of shrinkage of the retraction button 600 after injection molding at the threaded post position.

[0101] 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.

[0102] 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.

[0103] 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 tray assembly (100) for a child seat (10), characterized in that, The plate assembly (100) includes: Base (110); The plate (120) is detachably connected to the base (110). The plate (120) has a first wall (121) and a second wall (122) arranged opposite to each other. The first wall (121) defines a first cavity (123) for holding food. The second wall (122) is provided with a connecting structure (124). The connecting structure (124) includes a fixing post (1241) and a fixing ring (1243). One end of the fixing post (1241) and one end of the fixing ring (1243) are both connected to the second wall (122). The fixing ring (1243) is arranged around the fixing post (1241). The fixing post (1241), the fixing ring (1243) and the second wall (122) together define an annular space (1244) with one end open. The anti-slip mat (130) includes a connecting portion (131) and an anti-slip portion (132) connected to each other. The connecting portion (131) is located within the annular space (1244) and has a connecting hole (1311). The connecting hole (1311) is press-fitted with the fixing post (1241) so that the anti-slip mat (130) is connected to the plate (120). The anti-slip portion (132) is located outside the annular space (1244) and contacts the base (110). The base (110) includes an upper shell (111) and a lower shell (112), the upper shell (111) and the lower shell (112) are connected and together define a receiving cavity, and an adjusting steel wire is provided in the receiving cavity; The upper housing (111) has a fourth wall surface facing away from the lower housing (112) and a fifth wall surface (1112) facing the lower housing (112). The fourth wall surface defines a second cavity for accommodating the plate (120). The anti-slip part (132) is disposed between the fourth wall surface and the plate (120). The fifth wall surface (1112) is connected to a fixing rib (114) for abutting the adjusting steel wire. The fixing rib (114) includes a first rib plate (1141), a second rib plate (1142) and a third rib plate (1143). The first rib plate (1141) is disposed between the second rib plate (1142) and the third rib plate (1143), and the first rib plate (1141) is vertically connected to the second rib plate (1142) and the third rib plate (1143) respectively.

2. The plate assembly (100) as described in claim 1, characterized in that, The outer peripheral wall of the fixed column (1241) is the first peripheral wall (12411), and the outer peripheral wall of the connecting part (131) is the second peripheral wall (1312). The diameter of the first peripheral wall (12411) is less than half the diameter of the second peripheral wall (1312). The diameter R1 of the first peripheral wall (12411) satisfies: 4mm≤R1≤5mm; the diameter R2 of the second peripheral wall (1312) satisfies: 8mm≤R2≤10mm; The inner peripheral wall of the fixing ring (1243) is the third peripheral wall (12431), and the diameter of the first peripheral wall (12411) is less than half the diameter of the third peripheral wall (12431). The connecting part (131) is interference-fitted with the fixing ring (1243), and the diameter R3 of the third peripheral wall (12431) satisfies: 8mm≤R3≤10mm; Along the axial direction of the fixed column (1241), the length dimension L1 of the fixed column (1241) satisfies: 1mm≤L1≤4mm, the length dimension L2 of the connecting part (131) satisfies: 1mm≤L2≤4mm, and the length dimension L3 of the fixed ring (1243) satisfies: 1mm≤L3≤4mm.

3. The plate assembly (100) as described in claim 1, characterized in that, The plane perpendicular to the axis of the connecting hole (1311) is the projection plane. The connecting part (131) forms a first orthographic projection on the projection plane, and the anti-slip part (132) forms a second orthographic projection on the projection plane. The area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the first orthographic projection, and the first orthographic projection covers the second orthographic projection. The fixing ring (1243) forms a third orthographic projection on the projection plane. The area enclosed by the outer edge of the second orthographic projection is smaller than the area enclosed by the outer edge of the third orthographic projection, and the third orthographic projection covers the second orthographic projection. The connecting part (131) has a third wall surface (1313) facing the anti-slip part (132), the anti-slip part (132) is connected to the middle of the third wall surface (1313), and the junction of the outer peripheral wall of the anti-slip part (132) and the third wall surface (1313) forms a rounded chamfer. The connecting hole (1311) passes through the anti-slip part (132), and the connecting part (131) and the anti-slip part (132) are integrally connected.

4. The plate assembly (100) as described in claim 2, characterized in that, The first peripheral wall (12411) is provided with a plurality of protrusions, and each of the protrusions is evenly distributed on the first peripheral wall (12411) along the circumference. The fixed column (1241) has a central hole inside, the axis of which coincides with the axis of the first peripheral wall (12411), and the central hole passes through the end of the fixed column (1241) away from the second wall (122); The second wall surface (122) has four corners, and the number of the connecting structures (124) is four, with each of the four connecting structures (124) corresponding to one of the four corners; The number of anti-slip pads (130) is four, and the four anti-slip pads (130) are connected one-to-one with the four connecting structures (124).

5. The plate assembly (100) as described in claim 1, characterized in that, The second rib (1142) is provided with a first recess (11421) recessed in the direction of approaching the fourth wall surface, and the third rib (1143) is provided with a second recess (11431) recessed in the direction of approaching the fourth wall surface. The adjusting wire is at least partially embedded in the first recess (11421) and the second recess (11431), and the adjusting wire abuts against the second rib (1142) and the third rib (1143) respectively. The lowest point of the first recess (11421) is located in the middle of the second rib (1142), the lowest point of the second recess (11431) is located in the middle of the third rib (1143), one end of the first rib (1141) is connected to the middle of the second rib (1142), and the other end is connected to the middle of the third rib (1143), and the adjusting wire abuts against the first rib (1141). Along the direction perpendicular to the fifth wall (1112), the maximum depth H1 of the first recess (11421) and the maximum dimension H2 of the second rib (1142) satisfy: 2H1≥H2; the maximum depth H3 of the second recess (11431) and the maximum dimension H4 of the third rib (1143) satisfy: 2H3≥H4; The fifth wall surface (1112) is connected to a plurality of the fixing ribs (114), and each fixing rib (114) is connected to the adjusting wire.

6. A child seat (10), characterized in that, include: The plate assembly (100) according to any one of claims 1-5; The frame (200) includes a front support (210), a rear support (220), and an armrest support (230). The front support (210) is rotatably connected to the rear support (220), and the armrest support (230) is connected to the upper end of the front support (210). The plate assembly (100) is connected to the end of the armrest support (230) away from the front support (210). A seat assembly (300) is connected to the armrest bracket (230) and the front foot bracket (210), the seat assembly (300) defining a seating position.

7. The child seat (10) as described in claim 6, characterized in that, The seat assembly (300) includes a base plate (310), the lower wall of the base plate (310) is connected to a connecting pipe, the lower wall of the base plate (310) is provided with a sixth rib (320) and a seventh rib (330), the sixth rib (320) and the seventh rib (330) are arranged opposite each other at a distance, and the connecting pipe is at least partially disposed in the space between the sixth rib (320) and the seventh rib (330); The lower wall of the base plate (310) is also provided with an eighth rib (340) and a ninth rib (350). The eighth rib (340) and the ninth rib (350) are both located between the sixth rib (320) and the seventh rib (330) and are arranged opposite to each other at intervals. The distance between the eighth rib (340) and the sixth rib (320) is less than 4.5 mm, and the distance between the ninth rib (350) and the seventh rib (330) is less than 4.5 mm. Along the direction perpendicular to the lower wall surface, the height dimension of the eighth rib (340) is smaller than the height dimension of the sixth rib (320), and the height dimension of the ninth rib (350) is smaller than the height dimension of the seventh rib (330).

8. The child seat (10) as described in claim 6, characterized in that, The front foot support (210) includes a front foot tube (211), and a front foot cover plate (500) is fitted on the upper end of the front foot tube (211). The front foot cover plate (500) includes a first threaded post (510), the bottom of which is volcano-shaped. A retraction button (600) is provided inside the front foot cover plate (500), and the retraction button (600) includes a second threaded post (610), the bottom of which is volcano-shaped.

9. The child seat (10) as described in claim 6, characterized in that, The child seat (10) further includes a hinge assembly (400), which includes a front foot cover (410) and a rear foot cover (420). The front foot support (210) includes a front foot tube (211), and the rear foot support (220) includes a rear foot tube (221). The front foot cover (410) is connected to the front foot tube (211), and the rear foot cover (420) is fitted onto the upper end of the rear foot tube (221). The rear foot cover (420) is hinged to the front foot cover (410). The rear foot sleeve (420) defines a receiving groove (421) with one end open. The receiving groove (421) is provided with a fourth rib (430) and a fifth rib (440) arranged opposite to each other. The fourth rib (430) and the fifth rib (440) both extend along the depth direction of the receiving groove (421), and the length direction of the fourth rib (430) and the fifth rib (440) is perpendicular to the rotation axis of the rear foot sleeve (420) relative to the front foot sleeve (410). The wall surface of the fourth rib (430) facing the fifth rib (440) is arc-shaped and fits the outer wall surface of the front foot tube (211). The wall surface of the fifth rib (440) facing the fourth rib (430) is arc-shaped and fits the outer wall surface of the front foot tube (211). Along the depth direction of the receiving groove (421), the width dimension of the rear foot sleeve (420) is greater than half of the outer diameter of the rear foot tube (221).

Images