Headrest components and child seats

Abstract

The utility model discloses a headrest assembly and a child seat, wherein the headrest assembly includes a headrest body and a buffer. The headrest body includes a headrest portion and a wing portion connected to one side of the headrest portion, the wing portion is provided with a mounting recess, and the mounting recess has a bottom wall surface and a side wall surface. The buffer includes a buffer portion and a support portion, one side of the buffer portion is connected to the support portion, and the other side is connected to the bottom wall surface. The bottom wall surface and / or the side wall surface are convexly provided with a partition convex portion, and the partition convex portion is used to space the support portion and the side wall surface. In the above embodiment, when relative movement occurs between the support portion and the side wall surface during use of the headrest assembly, the two will not rub against each other to generate sound, thereby reducing the noise generated when the headrest assembly is in use.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a headrest assembly and a child seat. Background Art

[0002] The seat is provided with a headrest assembly, which is used to support the user's head. The headrest assembly is provided with a headrest portion and side wing portions located on both sides of the headrest portion. The headrest portion is mainly used to support the back of the user's head, and the side wing portions are mainly used to support the left and right sides of the user's head. In order to enhance the supporting effect for the head, a buffer is provided on the side of the side wing portion close to the user's head, and the buffer includes a buffer layer and a support layer. Among them, relative to the buffer layer, the support layer is generally made of a hard material, for example, the support layer can be a PE board. In the related art, after the support layer is assembled to the side wing portion, the side edge of the support layer abuts against the side wall of the side wing portion. If relative friction is generated between the support layer and the side wall of the side wing portion during the use of the headrest assembly, noise will be generated, which affects the user experience. Utility Model Content

[0003] The main purpose of the utility model is to provide a headrest assembly and a child seat, which can reduce the noise generated when the headrest assembly is in use.

[0004] To achieve the above object, the utility model provides a headrest assembly, which includes:

[0005] The headrest body comprises a headrest portion and side wing portions respectively connected to both sides of the headrest portion, wherein the side wing portions are provided with a mounting recess having a bottom wall surface and a side wall surface;

[0006] The buffer part is arranged on the side wing part, and comprises a buffer part and a support part, wherein one side of the buffer part is connected to the support part, and the other side of the buffer part is connected to the bottom wall surface;

[0007] A headrest plate, used for mounting the headrest body;

[0008] The bottom wall surface and / or the side wall surface is convexly provided with a partition convex portion, and the outer peripheral wall of the buffer portion facing the side wall surface abuts against the partition convex portion, so that the support portion is spaced apart from the side wall surface.

[0009] In the above embodiment, since the partitioning protrusion is convexly provided on the bottom wall surface and / or the side wall surface, and the outer peripheral wall of the buffering part facing the side wall surface abuts against the partitioning protrusion, the partitioning protrusion can separate the supporting part and the side wall surface, so that the supporting part does not directly contact the side wall surface. When the supporting part and the side wall surface produce relative movement during the use of the headrest assembly, the two will not rub against each other to produce sound, thereby reducing the noise generated when the headrest assembly is used. At the same time, the partitioning protrusion can locate the position of the buffer. When assembling the headrest assembly, the assembler can locate the relative position of the headrest assembly and the side wall surface after assembling the buffering part to abut the partitioning protrusion, thereby reducing the complexity of the operation of the operator, and at the same time, it can prevent the assembler from assembling the buffering part not in accordance with the design requirements, further avoiding the problem of the supporting part being assembled to abut the side wall surface.

[0010] In some embodiments, the separation protrusion is located at the junction of the bottom wall surface and the side wall surface and respectively connects the bottom wall surface and the side wall surface, and the separation protrusion is extended along the boundary line between the side wall surface and the bottom wall surface;

[0011] Along the direction perpendicular to the bottom wall surface, the height dimension of the separation convex portion is H1, and the height dimension of the buffer portion is H2, wherein 0.16≤H1 / H2≤0.19;

[0012] The height dimension of the side wall surface along the direction perpendicular to the bottom wall surface is H3, wherein 0.17≤H1 / H3≤0.2;

[0013] The minimum distance L from the side of the separation protrusion facing away from the side wall surface to the side wall surface satisfies: 4.95mm≤L≤5.45mm.

[0014] In some embodiments, the mounting recess extends in a direction away from the headrest portion to the front side edge of the side wing portion;

[0015] The mounting recess extends downward to the lower side of the side wing;

[0016] The headrest part and the side wing part are connected in one piece;

[0017] The supporting part is bonded to the buffer part;

[0018] The headrest part, the side wing part and the buffer part are all made of foam materials, and the support part is made of plastic.

[0019] The embodiment of the second aspect of the present application further provides a child seat, comprising:

[0020] Seat body;

[0021] A headrest assembly of any of the above items, connected to the upper side of the seat body;

[0022] The base is connected to the lower side of the seat body.

[0023] In some embodiments, the child seat further comprises a support assembly, the support assembly is connected to the front side of the base, the support assembly comprises a support rod and a first hinge portion, the base comprises a second hinge portion located at the front side, one end of the first hinge portion is connected to the support rod, and the other end is hinged to the second hinge portion, so that the support rod can rotate relative to the base to a first position and a second position, when the support rod is in the first position, one end is connected to the second hinge portion, and the other end extends downward, when the support rod is in the second position, one end is connected to the second hinge portion, and the other end extends toward the rear side of the base;

[0024] The support rod comprises a first rod and a second rod, wherein a first end of the first rod is connected to the first hinge portion, a second end opposite to the first end is connected to the second rod, and the second rod is configured to be able to extend into or extend out of the interior of the first rod;

[0025] The first hinged part comprises a connecting piece and a protective cover, wherein the connecting piece is connected to the first rod and hinged to the base, and the protective cover is arranged on the connecting piece and the first end.

[0026] In some embodiments, the connecting piece includes a first hinged end, a bent portion, and a second hinged end, the two ends of the bent portion are respectively connected to the first hinged end and the second hinged end, the bent portion is connected to the first end and is arranged around the first end along the circumferential direction of the outer peripheral wall of the first end, the first hinged end and the second hinged end are arranged opposite to each other at a distance, and the first hinged end and the second hinged end are both hinged to the second hinged portion;

[0027] The protective cover comprises a first cover body and a second cover body connected to the first cover body, the first cover body covers the first end and the bent portion, the second cover body covers the first hinged end and the second hinged end, and the second cover body is hinged to the second hinged portion;

[0028] The first hinge end is provided with a first hinge hole, the second hinge end is provided with a second hinge hole, the second cover body is provided with a third hinge hole and a fourth hinge hole, the third hinge hole is located on the side of the first hinge hole away from the second hinge hole, the fourth hinge hole is located on the side of the second hinge hole away from the first hinge hole, the first hinge part also includes a hinge shaft, the hinge shaft is sequentially passed through the third hinge hole, the first hinge hole, the second hinge part, the second hinge hole and the fourth hinge hole.

[0029] In some embodiments, the first cover body includes a side wall plate arranged around the curved portion and a top wall plate connected to one end of the side wall plate, the inner wall of the side wall plate facing the curved portion is provided with a plurality of first ribs, the first ribs are distributed along the circumferential direction of the outer peripheral wall of the first end and are arranged at intervals from each other, and the first ribs abut against the curved portion respectively;

[0030] A clamping protrusion is provided on one side of the side wall plate close to the bent portion, and a clamping groove is provided on the bent portion, and the clamping protrusion extends into the clamping groove;

[0031] The first rib includes a first section abutting against the curved portion and a second section located between the first section and the top wall plate, the size of the first section protruding from the side wall plate is smaller than the size of the second section protruding from the side wall plate, and the first end and the curved portion are spaced apart from the second section;

[0032] The inner wall of the second cover body is provided with a second rib, the second rib abuts the first hinge end or the second hinge end, the dimension of the second rib protruding from the second cover body is smaller than the dimension of the second section protruding from the side wall plate, and the dimension W of the second rib protruding from the second side wall plate satisfies: W≤5.5mm.

[0033] In some embodiments, along the length direction of the first rod, the distance between the bent portion and the second section is greater than the distance between the first end and the second section, the end wall of the first hinged end facing the top wall plate is flush with the end wall of the first end facing the top wall plate, and the end wall of the second hinged end facing the top wall plate is flush with the end wall of the first end facing the top wall plate;

[0034] Along the length direction of the first rod, the distance D between the end wall of the bent portion facing the top wall plate and the end wall of the first end facing the top wall plate satisfies D≥1mm;

[0035] The end wall of the bent portion facing the top wall plate is provided with a paint layer, and the thickness of the paint layer is less than or equal to the distance D.

[0036] In some embodiments, the second hinge portion includes a limiting portion, the limiting portion includes a first limiting protrusion, the second cover body includes a second limiting protrusion, the second cover body is configured to be able to rotate to a third position and a fourth position relative to the second hinge portion, when the second cover body rotates to the third position, the second limiting protrusion abuts against the first limiting protrusion, the support rod is located at the first position, the first limiting protrusion limits the second cover body from rotating to the fourth position, during the process of the second cover body rotating from the third position to the fourth position, the second limiting protrusion passes over the first limiting protrusion, and when the second cover body is located at the fourth position, the support rod is located at the second position;

[0037] The limiting part is an injection molded part, and a material taking groove is provided on the limiting part, and the groove wall of the material taking groove is separated from the injection molded waste;

[0038] The second hinged part also includes a hinged seat, the limiting part is connected to the hinged seat, the first hinged part is hinged to the hinged seat, the limiting part includes a limiting block and a fixed column, the limiting block is arranged around the hinge axis, the fixed column is connected to the wall surface of the limiting block facing the hinge axis, the first limiting protrusion is located on the surface of the limiting block away from the fixed column and protrudes from the hinged seat, and the material extraction groove is arranged on the side of the limiting block.

[0039] In some embodiments, the headrest assembly is movably connected to the seat body and is configured to be adjustable to at least two positions with different vertical heights relative to the seat body;

[0040] The seat body is provided with a plurality of adjustment slots distributed vertically, the headrest assembly includes a linkage member and a limit rod, the limit rod is configured to be able to rotate to a locked position and an unlocked position relative to the headrest body, when the limit rod is rotated to the locked position, it is locked in one of the adjustment slots to fix the relative position of the headrest body and the seat body, when the limit rod is rotated to the unlocked position, it is disengaged from the adjustment slot, so that the headrest body can slide up and down relative to the seat body, and the linkage member is configured to be driven to drive the headrest body to move from the locked position to the unlocked position;

[0041] The headrest assembly further includes a pivoting member, which is rotatably connected to the headrest body and connected to the limit rod, and the linkage member is slidably connected to the headrest body and configured to slide relative to the headrest body and push the pivoting member to rotate after being driven, thereby driving the limit rod to rotate from the locked position to the unlocked position;

[0042] The seat body is movably connected to the base, and the seat body is configured to translate laterally, rotate along a transverse axis, or rotate along a vertical axis relative to the base;

[0043] At least one side of the seat body is provided with a side impact protection block. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0045] Figure 1 It is a first stereoscopic schematic diagram of a headrest assembly in one embodiment of the utility model;

[0046] Figure 2 It is a three-dimensional schematic diagram of a headrest assembly in one embodiment of the utility model after removing the first buffer member;

[0047] Figure 3 It is a first cross-sectional schematic diagram of a headrest assembly in one embodiment of the utility model;

[0048] Figure 4 It is a three-dimensional schematic diagram of a headrest assembly in one embodiment of the utility model after removing the second buffer member;

[0049] Figure 5 It is a second cross-sectional schematic diagram of a headrest assembly in one embodiment of the utility model;

[0050] Figure 6 It is a third cross-sectional schematic diagram of a headrest assembly in one embodiment of the utility model;

[0051] Figure 7 It is a second stereoscopic schematic diagram of a headrest assembly in one embodiment of the utility model;

[0052] Figure 8 for Figure 7 A local enlarged schematic diagram of the middle A;

[0053] Fig. 9 It is a first three-dimensional schematic diagram of a child seat in one embodiment of the utility model;

[0054] Fig.10 It is a three-dimensional schematic diagram of a child seat in one embodiment of the utility model after the support assembly is removed;

[0055] Fig.11 for Fig.10 A partial enlarged schematic diagram of point B in the middle;

[0056] Fig.12 It is a three-dimensional schematic diagram of the support assembly and the base after being assembled in one embodiment of the utility model;

[0057] Fig.13 It is a cross-sectional schematic diagram of the support assembly and the base parts after being assembled in one embodiment of the utility model; wherein the support rod is in the first position and in an extended state;

[0058] Fig.14 for Fig.13 A partial enlarged schematic diagram of point C in the middle;

[0059] Fig.15 for Fig.14 A partial enlarged schematic diagram of point D in the middle;

[0060] Fig.16 for Fig.14 A partial enlarged schematic diagram of point E in the middle;

[0061] Fig.17 It is a cross-sectional schematic diagram of the support assembly and the base parts after being assembled in one embodiment of the utility model; wherein the support rod is in the second position and in a retracted state;

[0062] Fig.18 It is a side view schematic diagram of a base in one embodiment of the utility model;

[0063] Fig.19 for Fig.18 A partial enlarged schematic diagram of point F in the middle;

[0064] Fig. 20 It is a three-dimensional schematic diagram of a limiting part in one embodiment of the utility model;

[0065] Fig.21 It is a partial schematic diagram of the connection between the first rod and the connecting piece in one embodiment of the utility model;

[0066] Fig. 22 This is a three-dimensional schematic diagram of a protective cover in one embodiment of the utility model;

[0067] Fig.23 It is a side view schematic diagram of a protective cover in one embodiment of the utility model.

[0068] Description of Figure Numbers:

[0069] Child seats 10;

[0070] Headrest assembly 100;

[0071] Headrest body 110; headrest portion 111; first side wing portion 112; first mounting recess 1121; first bottom wall surface 1122; first side wall surface 1123; first partition convex portion 1124; second side wing portion 113; second mounting recess 1131; second bottom wall surface 1132; second side wall surface 1133; second partition convex portion 1134;

[0072] A first buffer member 120; a first buffer portion 121; a first support portion 122;

[0073] The second buffer member 130; the second buffer portion 131; the second support portion 132;

[0074] Linkage member 141; pivot member 142; limit rod 143; headrest plate 144;

[0075] Seat body 200;

[0076] Side mounted protection block 210;

[0077] Adjusting the card slot 220;

[0078] Base 300;

[0079] The second hinge part 310; the limiting part 311; the first limiting protrusion 3111; the limiting block 3112; the fixing column 3113; the material taking groove 3114; the hinge seat 312;

[0080] Support assembly 400;

[0081] Support rod 410; first rod 411; first end 4111; second end 4112; second rod 412; third rod 413;

[0082] A first hinge portion 420; a connecting piece 421; a bent portion 4211; a snap-in groove 42111; a first hinge end 4212; a second hinge end 4213; a protective cover 422; a first cover body 4221; a top wall plate 42211; a side wall plate 42212; a second cover body 4222; a first rib 4223; a first section 42231; a second section 42232; a snap-in protrusion 4224; a second limiting protrusion 4225; a second rib 4226; and a hinge shaft 423.

[0083] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0084] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0085] The seat is provided with a headrest assembly, which is used to support the user's head. The headrest assembly is provided with a headrest portion and side wing portions located on both sides of the headrest portion. The headrest portion is mainly used to support the back of the user's head, and the side wing portions are mainly used to support the left and right sides of the user's head. In order to enhance the supporting effect for the head, a buffer is provided on the side of the side wing portion close to the user's head, and the buffer includes a buffer layer and a support layer. Among them, relative to the buffer layer, the support layer is generally made of a hard material, for example, the support layer can be a PE board. In the related art, after the support layer is assembled to the side wing portion, the side edge of the support layer abuts against the side wall of the side wing portion. If relative friction is generated between the support layer and the side wall of the side wing portion during the use of the headrest assembly, noise will be generated, affecting the user experience.

[0086] Furthermore, the applicant has discovered that even if a gap is left between the buffer component and the side walls of the wing portion when the headrest assembly is designed, during processing of the headrest assembly, the workers will still assemble the buffer component to abut the side walls of the wing portion for the purpose of facilitating positioning and improving assembly efficiency, resulting in the problem of noise generated by friction between the support portion and the side walls of the wing portion after the headrest assembly is finally processed.

[0087] In view of this, in order to reduce the noise during the use of the headrest assembly 100, see Figure 1-Figure 20 This embodiment provides a headrest assembly 100. The headrest assembly 100 can be used in a seat, and specifically can be used in a child seat 10. Figure 1-Figure 7 , see Figure 7The headrest assembly 100 includes a headrest plate 144, a headrest body 110 and a buffer. The buffer is installed on the headrest body 110, the headrest plate 144 is configured as an arc-shaped plate, and the headrest body 110 is installed on the inner side of the headrest plate 144. It can be understood that the headrest plate 144 is configured as a bearing seat of the headrest body 110. In some embodiments, the headrest plate 144 is made of plastic material, the headrest body 110 is made of foam material, and the buffer includes inert foam and PE board, wherein the buffer on the headrest portion 111 only includes inert foam. The headrest assembly 100 configured in this way ensures support, cushioning, protection and comfort at the same time.

[0088] For ease of understanding, in this embodiment, the headrest assembly 100 has a front side, a rear side, a left side, a right side, an upper side and a lower side. The front side, rear side, left side, right side, upper side and lower side of the headrest assembly are all defined as the orientation of the headrest assembly 100 in the working state. Specifically, after the headrest assembly 100 is installed on the seat and the user sits on the seat in a standard sitting posture, the side of the headrest assembly 100 facing the front of the user's head is the front side of the headrest assembly 100, the side away from the user's head is the rear side of the headrest assembly 100, the side close to the user's left ear is the right side of the headrest assembly 100, the side close to the user's right ear is the left side of the headrest assembly 100, the side above the headrest assembly 100 is the upper side of the headrest assembly 100, and the side below the headrest assembly 100 is the lower side of the headrest assembly 100. The front side, rear side, left side, right side, upper side and lower side of the headrest assembly 100 do not change according to the change of its arrangement orientation.

[0089] It is understandable that in order to improve the comfort of the user when using the headrest assembly 100, the headrest assembly 100 is generally set to a symmetrical structure. For the convenience of description, the side wing portion is divided into a first side wing portion 112 and a second side wing portion 113 symmetrical about the symmetry plane of the headrest assembly 100, the mounting recess is divided into a first mounting recess 1121 and a second mounting recess 1131 symmetrical about the symmetry plane of the headrest assembly 100, the bottom wall surface is divided into a first bottom wall surface 1122 and a second bottom wall surface 1132 symmetrical about the symmetry plane of the headrest assembly 100, the side wall surface is divided into a first side wall surface 1123 and a second side wall surface 1133 symmetrical about the symmetry plane of the headrest assembly 100, the partition convex portion is divided into a first partition convex portion 1124 and a second partition convex portion 1134 symmetrical about the symmetry plane of the headrest assembly 100, and the buffer is divided into a first buffer 120 and a second buffer 130 symmetrical about the symmetry plane of the headrest assembly 100. The first side wing portion 112 is provided with a first mounting recess 1121, and the first mounting recess 1121 has a first bottom wall surface 1122 and a first side wall surface 1123; the second side wing portion 113 is provided with a second mounting recess 1131, and the second mounting recess has a second bottom wall surface 1132 and a second side wall surface 1133. The first buffer 120 is provided on the first side wing portion 112, and the first buffer 120 includes a first buffer portion 121 and a first support portion 122; the second buffer 130 is provided on the second side wing portion 113, and the second buffer 130 includes a second buffer portion 131 and a second support portion 132. Furthermore, the first bottom wall surface 1122 and / or the first side wall surface 1123 are provided with a first partitioning protrusion 1124, and the outer peripheral wall of the first buffer portion 121 facing the first side wall surface 1123 abuts against the first partitioning protrusion 1124, so that the first support portion 122 is spaced apart from the first side wall surface 1123; the second bottom wall surface 1132 and / or the second side wall surface 1133 are provided with a second partitioning protrusion 1134, and the outer peripheral wall of the second buffer portion 131 facing the second side wall surface 1133 abuts against the second partitioning protrusion 1134, so that the second support portion 132 is spaced apart from the second side wall surface 1133. According to the above definition of the headrest assembly 100 mechanism, please refer to the following content for how to reduce the noise during the use of the headrest assembly 100.

[0090] Specifically, see Figure 1-Figure 2The headrest body 110 of the headrest assembly 100 includes a headrest portion 111, a first side wing portion 112 and a second side wing portion 113. The first side wing portion 112 and the second side wing portion 113 are respectively connected to the two lateral sides of the headrest portion 111, and the first side wing portion 112 and the second side wing portion 113 are both extended along the front side relative to the headrest body 110, and the first side wing portion 112 and the second side wing portion 113 are arranged opposite to each other along the lateral direction. When working, the headrest body 110 is installed on the upper side of the seat to support the user's head. Specifically, the headrest portion 111 is mainly used to support the back of the user's head, and the first side wing portion 112 and the second side wing portion 113 are respectively mainly used to support the left and right sides of the user's brain. See Figure 1 In this embodiment, the first side wing portion 112 is mainly used to support the right side of the user's brain, and the second side wing portion 113 is mainly used to support the left side of the user's brain. In other embodiments, the first side wing portion 112 can also be mainly used to support the left side of the user's brain, and the second side wing portion 113 can also be mainly used to support the right side of the user's brain.

[0091] The molding method of the headrest body 110 can be determined according to actual needs. In this embodiment, the headrest portion 111, the first side wing portion 112 and the second side wing portion 113 of the headrest body 110 can be integrally molded, and specifically can be integrally foamed, so that the three have a certain elasticity after molding, and can provide a better cushioning effect when supporting the user's head, thereby improving the user's comfort. In other embodiments, the headrest portion 111, the first side wing portion 112 and the second side wing portion 113 can also be spliced ​​and assembled after being molded separately, and the specific connection structure of the three is not repeated here.

[0092] See also Figure 2 , a first mounting recess 1121 is provided on the side of the first wing portion 112 facing the second wing portion 113, and the first mounting recess 1121 has a first bottom wall surface 1122 facing the second wing portion 113 and a first side wall surface 1123 located at the periphery of the first bottom wall surface 1122. In some embodiments, the first mounting recess 1121 is provided at the middle position of the wall surface of the first wing portion 112 facing the second wing portion 113, so that the first side wall surface 1123 is an annular wall surface, and the first side wall surface 1123 is arranged around the first bottom wall surface 1122. In some embodiments, the first mounting recess 1121 can extend to the outer side edge of the first wing portion 112, so that the first side wall surface 1123 is disconnected, and the first side wall surface 1123 is arranged around a portion of the periphery of the first bottom wall surface 1122. Specifically, see Figure 2In this embodiment, the first mounting recess 1121 extends to the front side of the first side wing portion 112 in a direction away from the headrest portion 111, and the first mounting recess 1121 extends downward to the lower side of the first side wing portion 112, so that the first side wall surface 1123 is arranged around the rear side and upper side of the first bottom wall surface 1122.

[0093] See also Figure 1-Figure 3 , the first buffer 120 includes a first buffer portion 121 and a first support portion 122. The first buffer 120 is disposed in the first mounting recess 1121. Specifically, one side of the first buffer portion 121 is connected to the first support portion 122, and the other side is connected to the first bottom wall surface 1122. Specifically, the thickness of the first buffer portion 121 can be greater than that of the first support portion 122, and the first buffer portion 121 is block-shaped, the first support portion 122 is plate-shaped, and the first buffer portion 121 and the first support portion 122 are bonded to each other. In this embodiment, the first buffer 120 is mainly used to support the right side of the user's head. When the user's head hits the first side wing portion 112, the first buffer 120 is used to reduce the damage caused by the impact to the user. The material hardness of the first buffer portion 121 is less than that of the first support portion 122, so that the first buffer portion 121 can provide a buffering effect through deformation; and the first support portion 122 can transmit the impact of the user to the entire first buffer portion 121, so that the entire first buffer portion 121 is used for collapse energy absorption.

[0094] In order to make the headrest 111, the first side wing 112 and the second side wing 113 have a good cushioning effect, in some embodiments, the headrest 111, the first side wing 112 and the second side wing 113 are all made of foam material, and the three are foamed and molded in one piece. The material of the headrest 111, the first side wing 112 and the second side wing 113 is preferably EPP / EPS / EPO foam material. In some embodiments, in order to make the first buffer 121 and the second buffer 131 have a good cushioning effect, the first buffer 121 and the second buffer 131 can both be foam materials, and the specific material can be inert foam. In some embodiments, in order to make the first support part 122 and the second support part 132 have a good supporting effect, the first support part 122 and the second support part 132 can both be plastic materials, specifically PE board, PC board or PVC board. In some embodiments, in order to make the headrest board 144 have a better supporting effect, the headrest board 144 can be made of plastic material, preferably PP / PC, etc. Furthermore, in some embodiments, the hardness of the material of the first buffer portion 121 may be smaller than the hardness of the material of the first wing portion 112, and the hardness of the material of the second buffer portion 131 may be smaller than the hardness of the material of the second wing portion 113, so that the first buffer portion 121 and the second buffer portion 131 can preferentially perform crush energy absorption.

[0095] In some embodiments, the first bottom wall 1122 and / or the first side wall 1123 are protrudingly provided with a first partition protrusion 1124 , and the outer peripheral wall of the first buffer portion 121 facing the first side wall 1123 abuts against the first partition protrusion 1124 so that the first support portion 122 is spaced apart from the first side wall 1123 . In other words, in one embodiment, a first partition protrusion 1124 is protruded between the first supporting portion 122 of the first bottom wall surface 1122 and the first side wall surface 1123, and the first partition protrusion 1124 is spaced apart from the first side wall surface 1123. The wall surface of the first buffer member 120 close to the first side wall surface 1123 (specifically, the wall surface of the first buffer portion 121 close to the first side wall surface 1123) abuts against the wall surface of the first partition protrusion 1124 away from the first side wall surface 1123, thereby separating the first supporting portion 122 of the first buffer member 120 from the first side wall surface 1123. In another embodiment, different from the above embodiment, the first partition protrusion 1124 is not protruded from the first bottom wall surface 1122, but is protruded from the first side wall surface 1123, and the first partition protrusion 1124 is spaced apart from the first bottom wall surface 1122. In yet another embodiment, see Figure 2 , which is different from the above two embodiments, the first partition protrusion 1124 is located at the junction of the first bottom wall surface 1122 and the first side wall surface 1123 , and the first partition protrusion 1124 is connected to both the first bottom wall surface 1122 and the first side wall surface 1123 .

[0096] In the headrest assembly 100 of the present embodiment, since the first partition protrusion 1124 is protrudingly provided on the first bottom wall surface 1122 and / or the first side wall surface 1123, and the outer peripheral wall of the first buffer portion 121 facing the first side wall surface 1123 abuts against the first partition protrusion 1124, the first partition protrusion 1124 can separate the first support portion 122 and the first side wall surface 1123, so that the first support portion 122 does not directly contact the first side wall surface 1123. When relative movement occurs between the first support portion 122 and the first side wall surface 1123 during use of the headrest assembly 100, the two will not rub against each other to generate sound, thereby reducing the noise generated when the headrest assembly 100 is in use. At the same time, the first partition protrusion 1124 can locate the position of the first buffer component. When assembling the headrest assembly 100, the assembler can install the first buffer component 120 to abut the first partition protrusion 1124, and then locate the relative position of the headrest assembly 100 and the first side wall surface 1123, thereby reducing the operation complexity of the operator. At the same time, it can also prevent the assembler from assembling the first buffer component 120 not according to the design requirements, and further avoid the problem of the first support portion 122 being assembled to abut the first side wall surface 1123.

[0097] It should be noted that when the headrest portion 111, the first side wing portion 112 and the second side wing portion 113 of the headrest body 110 are integrally connected, in order to make the boundary position between the first side wing portion 112 and the headrest portion 111 relatively clear, the wall surface opposite to the first support portion 122 of the first buffer member 120 along the front and rear sides of the headrest assembly 100 is defined as the first side wall surface 1123 of the first side wing portion 112. In other words, along the direction of the front and rear sides of the headrest assembly 100, the portion opposite to the first support portion 122 is the portion of the first side wing portion 112.

[0098] The number of the first partition protrusions 1124 may be one or more. When the number of the first partition protrusions 1124 is one, the first partition protrusion 1124 may be a convex point convexly provided on the first bottom wall surface 1122 and / or the first side wall surface 1123; when the number of the first partition protrusions 1124 is multiple, each of the first partition protrusions 1124 may be a convex point convexly provided on the first bottom wall surface 1122 and / or the first side wall surface 1123, and each of the first partition protrusions 1124 is spaced apart from each other along the circumference of the first side wall surface 1123, and the wall surface of the first buffer portion 121 facing the first side wall surface 1123 abuts against each of the first partition protrusions 1124. See Figure 1-Figure 2 In this embodiment, the number of the first partition convex portion 1124 is one, and the first partition convex portion 1124 is located at the junction of the first bottom wall surface 1122 and the first side wall surface 1123 and respectively connects the first bottom wall surface 1122 and the first side wall surface 1123. The first partition convex portion 1124 is arranged along the boundary line between the first side wall surface 1123 and the first bottom wall surface 1122, and specifically can be extended to the two ends of the first side wall surface 1123. In this solution, since the first partition convex portion 1124 simultaneously connects the first bottom wall surface 1122 and the first side wall surface 1123, the structural strength of the first partition convex portion 1124 is higher; since the first partition convex portion 1124 is arranged along the boundary line between the first side wall surface 1123 and the first bottom wall surface 1122, the abutting area of ​​the first partition convex portion 1124 with the first buffer portion 121 is larger, thereby having a better limiting effect on the first buffer portion 121.

[0099] See also Figure 2-Figure 3 as well as Figure 6, along the direction perpendicular to the first bottom wall surface 1122, the height dimension of the first partition convex portion 1124 is H1, and the height dimension of the first buffer portion 121 is H2. The relative ratio H1 / H2 of the height dimension H1 of the first partition convex portion 1124 and the height dimension H2 of the first buffer portion 121 should not be too high or too low. When H1 / H2 is too high, the height dimension of the first partition convex portion 1124 is too high, so that when the first buffer portion 121 collapses and deforms after the first buffer member 120 is impacted by the user's head, the first support portion 122 is easy to contact the first partition convex portion 1124, thereby generating friction with the first partition convex portion 1124, and then generating noise. When H1 / H2 is too low, the first partition convex portion 1124 has a poor positioning effect on the first buffer member 120, so that when the operator improperly operates the first buffer member 120, the first support portion 122 may still be attached to the first side wall surface 1123. In view of this, in some embodiments, 0.16≤H1 / H2≤0.19, and illustratively, H1 / H2 may be 0.16, 0.17, 0.18 or 0.19. In this embodiment, when 0.16≤H1 / H2≤0.19, on the one hand, the first partition convex portion 1124 can have a better positioning effect, effectively preventing the first support portion 122 from abutting against the first side wall surface 1123; on the other hand, when the first buffer portion 121 collapses and deforms, the first support portion 122 is not easy to contact the first partition convex portion 1124, thereby further reducing the possibility of generating noise.

[0100] See also Figure 2-Figure 3 as well as Figure 6 , along the direction perpendicular to the first bottom wall surface 1122, the height dimension of the first side wall surface 1123 is H3. Similarly, the relative ratio H1 / H3 of the height dimension H1 of the first partition protrusion 1124 and the height dimension H3 of the first side wall surface 1123 should not be too high or too low. Therefore, in some embodiments, 0.17≤H1 / H3≤0.2, and illustratively, H1 / H3 can be 0.17, 0.18, 0.19 or 0.2. In this embodiment, when 0.17≤H1 / H3≤0.2, on the one hand, the first partition protrusion 1124 can have a better positioning effect, effectively preventing the first support portion 122 from being attached to the first side wall surface 1123; on the other hand, it can also make it difficult for the first support portion 122 to contact the first partition protrusion 1124 when the first buffer portion 121 collapses and deforms, thereby further reducing the possibility of generating noise.

[0101] When the distance from the side of the first partition protrusion 1124 away from the first side wall surface 1123 to the first side wall surface 1123 is too long, the spacing between the first buffer 120 and the first side wall surface 1123 is too large, so that foreign matter and dust are easily accumulated in the gap between the two, which is difficult to clean. When the distance from the side of the first partition protrusion 1124 away from the first side wall surface 1123 to the first side wall surface 1123 is too short, during the process of the first buffer 121 collapsing and deforming, the first support portion 122 is easily displaced in the direction close to the first side wall surface 1123 until it contacts the first side wall surface 1123, thereby generating noise. In view of this, see Figure 2-Figure 3 as well as Figure 6 , the minimum distance L between the side of the first partition protrusion 1124 away from the first side wall surface 1123 and the first side wall surface 1123 satisfies: 4.95mm≤L≤5.45mm. Exemplarily, L can be 4.95mm, 5.05mm, 5.15mm, 5.25mm, 5.35mm or 5.45mm. In this solution, when 4.95mm≤L≤5.45mm, the gap between the first buffer 120 and the first side wall surface 1123 is not easy to collect dirt, and the possibility of the first support portion 122 rubbing against the first side wall surface 1123 and generating noise is further reduced.

[0102] See also Figure 4-Figure 6 In some embodiments, a second mounting recess 1131 is provided on the side of the second side wing 113 facing the first side wing 112, and the second mounting recess 1131 has a second bottom wall 1132 facing the first side wing 112 and a second side wall 1133 located at the periphery of the second bottom wall 1132. The headrest assembly 100 further includes a second buffer 130, and the second buffer 130 includes a second buffer 131 and a second support 132, and one side of the second buffer 131 is connected to the second support 132 and the other side is connected to the second bottom wall 1132. The second bottom wall 1132 and / or the second side wall 1133 are convexly provided with a second partition convex portion 1134, and the outer peripheral wall of the second buffer 131 facing the second side wall 1133 abuts against the second partition convex portion 1134, so that the second support 132 is spaced apart from the second side wall 1133. The specific structure of the second side wing portion 113 , the specific structure of the second buffer component 130 , and the relative relationship therebetween can refer to the first side wing portion 112 and the first buffer component 120 described above, and will not be described in detail here.

[0103] See also Figure 1-Figure 20 The embodiment of the second aspect of the present application further provides a child seat 10, see Figure 9-12The child seat 10 includes a seat body 200, a base 300 and a headrest assembly 100 in any of the above embodiments. Further, the child seat 10 may also include a support assembly 400. The headrest assembly 100 is connected to the upper side of the seat body 200, the base 300 is connected to the lower side of the seat body 200, and the support assembly 400 is connected to the front side of the base 300. In some embodiments, the headrest assembly 100 can adjust its position up and down relative to the seat body 200 to adapt to children of different heights. The specific adjustment method of the headrest assembly 100 is described in detail below. The seat body 200 can translate and rotate relative to the base 300, wherein the direction of translation can be the front-to-back direction or the left-to-right direction, and the rotation axis of the seat body 200 relative to the base 300 can be a vertically arranged axis (thereby adjusting the lateral orientation of the seat body 200) or a horizontally arranged axis (thereby adjusting the vertical angle of the seat body 200). Side impact protection blocks are provided on both sides of the seat body 200 along the direction from the first side wing 112 to the second side wing 113, i.e., the left and right sides of the child seat 10. The side impact protection blocks 210 can collapse and absorb energy when the child seat 10 is impacted laterally, thereby improving safety.

[0104] See also Figure 12-13 ,as well as Fig.17 In some embodiments, the support assembly 400 can rotate relative to the base 300. Specifically, the support assembly 400 includes a support rod 410 and a first hinge portion 420, and the base 300 includes a second hinge portion 310 located at the front side. One end of the first hinge portion 420 is connected to the support rod 410, and the other end is hinged to the second hinge portion 310, so that the support rod 410 can rotate relative to the base 300 to a first position and a second position. When the support rod 410 is in the first position, one end is connected to the second hinge portion 310 and the other end extends downward. When the support rod 410 is in the second position, one end is connected to the second hinge portion 310 and the other end extends toward the rear side of the base 300. See FIG. Figure 12-13 , is a diagram showing the support rod 410 being located in the first position; see Fig.17 , which is a diagram showing that the support rod 410 is located at the second position. The rotation of the support rod 410 relative to the base 300 can reduce the space required for storing the child seat 10.

[0105] See also Figure 12-13 ,as well as Fig.17In addition to being able to rotate relative to the base 300, the support rod 410 itself can also perform telescopic movement. Specifically, the support rod 410 includes a first rod 411 and a second rod 412, wherein a first end 4111 of the first rod 411 is connected to the first hinge portion 420, and a second end 4112 opposite to the first end 4111 is connected to the second rod 412, and the second rod 412 is configured to be able to extend into or extend out of the interior of the first rod 411. In other embodiments, the support rod 410 may further include a third rod 413, which is movably connected to the end of the second rod 412 away from the first rod 411, and can extend into or extend out of the second rod 412. In this solution, the telescopic support can reduce the space required for storing the support rod 410.

[0106] See also Figure 14-16 ,as well as Figure 22-Figure 23 The first hinge part 420 includes a connecting piece 421 and a protective cover 422. The connecting piece 421 is connected to the first rod 411 and hinged to the base 300. The protective cover 422 covers the connecting piece 421 and the first end 4111. The first protective cover 422 can protect the connecting piece 421, thereby preventing the connecting piece 421 from being damaged (such as rust), thereby improving the service life of the first hinge part 420.

[0107] See also Figure 14-15 ,as well as Fig.21 In some embodiments, the connecting piece 421 includes a first hinge end 4212, a curved portion 4211 and a second hinge end 4213. The two ends of the curved portion 4211 are respectively connected to the first hinge end 4212 and the second hinge end 4213, the curved portion 4211 is connected to the first end 4111 and is arranged around the first end 4111 along the circumferential direction of the outer peripheral wall of the first end 4111, the first hinge end 4212 and the second hinge end 4213 are arranged opposite to each other, and the first hinge end 4212 and the second hinge end 4213 are both hinged to the second hinge portion 310. In this solution, the contact area of ​​the connecting edge with the first end 4111 of the first rod 411 is larger, so that the connection effect of the two is better and the connection is more stable. Specifically, the connecting piece 421 and the first rod 411 can both be made of metal materials, and the two can be welded to each other.

[0108] See also Figure 14-16 ,as well as Figure 21-23In some embodiments, the protective cover 422 includes a first cover body 4221 and a second cover body 4222 connected to the first cover body 4221. The first cover body 4221 covers the first end 4111 and the curved portion 4211, the second cover body 4222 covers the first hinge end 4212 and the second hinge end 4213, and the second cover body 4222 is hinged to the second hinge portion 310. The first hinge end 4212 is provided with a first hinge hole, the second hinge end 4213 is provided with a second hinge hole, the second cover body 4222 is provided with a third hinge hole and a fourth hinge hole, the third hinge hole is located on the side of the first hinge hole away from the second hinge hole, the fourth hinge hole is located on the side of the second hinge hole away from the first hinge hole, and the first hinge portion 420 further includes a hinge shaft 423, and the hinge shaft 423 is sequentially penetrated through the third hinge hole, the first hinge hole, the second hinge portion 310, the second hinge hole, and the fourth hinge hole. In this solution, the protective cover 422 is hinged to the second hinge part 310. Compared with the structure in which the protective cover 422 is fixedly connected to the first rod 411, the connection effect between the first hinge part 420 and the second hinge part 310 is better, and the protective cover 422 is less likely to separate from the first end 4111 of the first rod 411.

[0109] See also Figure 14-17 ,as well as Figure 21-23 In some embodiments, the first cover body 4221 includes a side wall plate 42212 disposed around the curved portion 4211 and a top wall plate 42211 connected to one end of the side wall plate 42212. A plurality of first ribs 4223 are disposed on the inner wall of the side wall plate 42212 facing the curved portion 4211. The first ribs 4223 are distributed along the circumferential direction of the outer peripheral wall of the first end 4111 and are arranged at intervals from each other. The first ribs 4223 abut against the curved portion 4211 respectively. The first ribs 4223 include a first section 42231 abutting against the curved portion 4211 and a second section 42232 located between the first section 42231 and the top wall plate 42211. The dimension of the first section 42231 protruding from the side wall plate 42212 is smaller than the dimension of the second section 42232 protruding from the side wall plate 42212. The first end 4111 and the curved portion 4211 are arranged at intervals from the second section 42232. In this solution, on the one hand, the structural strength of the first rib 4223 can be enhanced, and on the other hand, position interference between the first rib 4223 and the first rod 411 and the connecting piece 421 can be prevented.

[0110] To improve the connection stability of the protective cover 422, see Figure 14-17 ,as well as Figure 21-23In some embodiments, a clamping protrusion 4224 is provided on one side of the side wall plate 42212 close to the bent portion 4211, and a clamping groove 42111 is provided on the bent portion 4211, and the clamping protrusion 4224 extends into the clamping groove 42111. Furthermore, the first end 4111 of the first rod 411 may be provided in a through groove connected to the clamping groove 42111, so that the clamping protrusion 4224 penetrates into the first end 4111, thereby further improving the connection stability of the protective cover 422 and preventing the protective cover 422 from being separated from the first end 4111 of the first rod 411.

[0111] See also Fig.14 , Fig.17 as well as Fig.23 In some embodiments, the inner wall of the second cover 4222 is provided with a second rib 4226, the second rib 4226 abuts against the first hinge end 4212 or the second hinge end 4213, the dimension of the second rib 4226 protruding from the second cover 4222 is smaller than the dimension of the second section 42232 protruding from the side wall plate 42212, and the dimension W of the second rib 4226 protruding from the second cover 4222 satisfies: W≤5.5mm, and illustratively, the dimension W of the second rib 4226 protruding from the second cover 4222 can be 5.5mm, 5mm, 4.5mm or 4mm, etc. In this solution, the dimension of the second rib 4226 protruding from the second side wall plate 42212 will not be too long, so that the second cover 4222 is more closely fitted with the first hinge end 4212 and the second hinge end 4213, and the three are more closely connected, and at the same time, it is not easy for the second cover 4222 to have position interference with the hinge seat 312.

[0112] See also Fig.15 as well as Fig.21In some embodiments, along the length direction of the first rod 411, the distance between the curved portion 4211 and the second section 42232 is greater than the distance between the first end 4111 and the second section 42232, the end wall of the first hinged end 4212 facing the top wall plate 42211 is flush with the end wall of the first end 4111 facing the top wall plate 42211, and the end wall of the second hinged end 4213 facing the top wall plate 42211 is flush with the end wall of the first end 4111 facing the top wall plate 42211. In this solution, in practice, a small portion of the end of the curved portion 4211 can be polished so that the end of the curved portion 4211 sinks a certain distance relative to the end of the first end 4111. The above solution ensures that after the end of the curved portion 4211 is painted, the paint will not interfere with the second section 42232 of the first rib 4223, thereby affecting the assembly between the protective cover 422 and the first rod 411. In other words, the space where the end of the curved portion 4211 sinks relative to the end of the first end 4111 is used to reserve enough space for paint. Specifically, along the length direction of the first rod 411, the distance D between the end wall of the curved portion 4211 facing the top wall plate 42211 and the end wall of the first end 4111 facing the top wall plate 42211 satisfies D≥1mm. Exemplarily, the dimension W of the second rib 4226 protruding from the second cover body 4222 can be 1mm, 1.1mm, 1.2mm or 1.3mm, etc., that is, the distance where the end of the curved portion 4211 sinks relative to the end of the first end 4111 is greater than or equal to one millimeter. Further, the end wall of the curved portion 4211 facing the top wall plate 42211 is provided with a paint layer, and the paint layer of the end of the curved portion 4211 facing the top wall plate 42211 does not exceed the end of the first end 4111, that is, the thickness of the paint layer is less than or equal to the distance D.

[0113] To define the position of the support assembly 400 relative to the base 300, in some embodiments, see Figure 16-Figure 20 The second hinge part 310 includes a limiting part 311, and the limiting part 311 includes a first limiting protrusion 3111. The second cover body 4222 includes a second limiting protrusion 4225. The second cover body 4222 is configured to be able to rotate to a third position and a fourth position relative to the second hinge part 310. When the second cover body 4222 rotates to the third position, the second limiting protrusion 4225 abuts against the first limiting protrusion 3111. The support rod 410 is located at the first position. The first limiting protrusion 3111 limits the second cover body 4222 from rotating to the fourth position. During the process of the second cover body 4222 rotating from the third position to the fourth position, the second limiting protrusion 4225 passes over the first limiting protrusion 3111. When the second cover body 4222 is located at the fourth position, the support rod 410 is located at the second position. See FIG. Fig.14 , is a schematic diagram of the second cover 4222 rotating to the third position; see Fig.17 , is a schematic diagram of the second cover body 4222 rotating to the fourth position.

[0114] In some embodiments, the limiting portion 311 may be an injection molded part. When the limiting portion 311 is injection molded, multiple limiting portions 311 may be molded at one time, and each limiting portion 311 is connected with injection molding waste after injection molding. After each limiting portion 311 is separated from the injection molding waste, the processing is completed. In order to facilitate the separation of the limiting portion 311 from the injection molding waste, see Figure 18-Figure 20 In some embodiments, the limiting portion 311 is provided with a material taking groove 3114, and the groove wall of the material taking groove 3114 is separated from the injection molding waste. In other words, after the limiting portion 311 is injection molded, the injection molding waste is connected to the groove wall position of the material taking groove 3114. This solution makes it easier to separate the limiting portion 311 from the injection molding waste, thereby reducing the processing cost of the limiting portion 311.

[0115] See also Figure 18-Figure 20 The second hinged part 310 further includes a hinge seat 312, and the limiting part 311 is connected to the hinge seat 312. The first hinged part 420 is hinged to the hinge seat 312, and the limiting part 311 includes a limiting block 3112 and a fixing column 3113. The limiting block 3112 is arranged around the hinge shaft 423, and the fixing column 3113 is connected to the wall surface of the limiting block 3112 facing the hinge shaft 423. The first limiting protrusion 3111 is located on the surface of the limiting block 3112 away from the fixing column 3113 and protrudes from the hinge seat 312, and the material extraction groove 3114 is arranged on the side of the limiting block 3112.

[0116] See also Figure 7-Figure 11In some embodiments, the headrest assembly 100 is movably connected to the seat body 200 and is configured to be adjustable to at least two positions with different vertical heights relative to the seat body 200. Specifically, a plurality of vertically distributed adjustment slots 220 are provided on the inner side of the back of the seat body 200. The headrest assembly 100 includes a linkage 141 and a limit rod 143. The limit rod 143 is configured to be able to rotate to a locked position and an unlocked position relative to the headrest body 110. When the limit rod 143 rotates to the locked position, it is clamped in one of the adjustment slots 220 to fix the relative position of the headrest body 110 and the seat body 200; when the limit rod 143 rotates to the unlocked position, it is disengaged from the adjustment slot 220 so that the headrest body 110 can slide up and down relative to the seat body 200. The linkage 141 is configured to be driven to drive the headrest body 110 to move from the locked position to the unlocked position. Specifically, under normal conditions, the limiting rod 143 is located in the locked position and is clamped in one of the adjustment slots 220, so that the headrest assembly 100 has a height position relative to the seat body 200. When the user drives the linkage 141 to move relative to the headrest assembly 100 (specifically, it can be sliding). The linkage 141 drives the limiting rod 143 to rotate to the unlocked position relative to the seat body 200, so that the limiting rod 143 falls off the adjustment slot 220. At this time, the user can drive the headrest assembly 100 to move up and down relative to the seat body 200. When the user adjusts the headrest assembly 100 to a suitable height, the user releases the linkage 141 or drives the linkage 141 again, so that the linkage 141 can drive the limiting rod 143 to move from the unlocked position to the locked position. At this time, the limiting rod 143 is clamped again into another vertical height corresponding adjustment slot 220 of the seat body 200, thereby fixing the relative position between the headrest assembly 100 and the seat body 200 again.

[0117] See also Figure 7-Figure 8In some embodiments, the headrest assembly 100 further includes a pivoting member 142, which is rotatably connected to the headrest body 110 and connected to the limiting rod 143. The linkage member 141 is slidably connected to the headrest body 110, and is configured to slide relative to the headrest body 110 after being driven and push the pivoting member 142 to rotate, thereby driving the limiting rod 143 to rotate from the locked position to the unlocked position. The upper end of the linkage member 141 extends out of the headrest body 110 and the user obtains the user's driving force. The lower end of the linkage member 141 cooperates with the pivoting member 142, so that when the linkage member 141 slides upward relative to the headrest body 110, it can drive the pivoting member 142 to rotate relative to the headrest body 110, thereby driving the limiting rod 143 located in the locked position to rotate to the unlocked position. Furthermore, the pivot member 142 can be connected to a return spring, which is used to drive the pivot member 142 to rotate relative to the headrest body 110. Specifically, when the pivot member 142 drives the limit rod 143 to move to the unlocked position, the return spring has a tendency to drive the pivot member 142 to move and thereby drive the limit rod 143 to rotate to the locked position. That is, when the user releases the linkage member 141, the return spring can automatically drive the limit rod 143 from the unlocked position to the locked position.

[0118] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0119] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies 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 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 utility model.

[0120] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A headrest assembly, characterized in that: The headrest assembly comprises: The headrest body comprises a headrest portion and side wing portions respectively connected to both sides of the headrest portion, wherein the side wing portions are provided with a mounting recess having a bottom wall surface and a side wall surface; A buffer member is provided on the side wing portion, comprising a buffer portion and a support portion, wherein one side of the buffer portion is connected to the support portion and the other side is connected to the bottom wall surface; A headrest plate, used for mounting the headrest body; The bottom wall surface and / or the side wall surface is convexly provided with a partition convex portion, and the outer peripheral wall of the buffer portion facing the side wall surface abuts against the partition convex portion, so that the support portion is spaced apart from the side wall surface.

2. The headrest assembly according to claim 1, characterized in that: The partition convex portion is located at the junction of the bottom wall surface and the side wall surface and respectively connects the bottom wall surface and the side wall surface, and the partition convex portion is extended and arranged along the boundary line between the side wall surface and the bottom wall surface; Along the direction perpendicular to the bottom wall, the height dimension of the separation protrusion is H1, and the height dimension of the buffer portion is H2, wherein 0.16≤H1 / H2≤0.19; Along the direction perpendicular to the bottom wall surface, the height dimension of the side wall surface is H3, wherein 0.17≤H1 / H3≤0.2; A minimum distance L between a side of the separation protrusion facing away from the side wall surface and the side wall surface satisfies: 4.95 mm≤L≤5.45 mm.

3. The headrest assembly according to claim 1, characterized in that: The mounting recess extends in a direction away from the headrest portion to the front side of the side wing portion; The mounting recess extends downward to the lower side of the side wing; The headrest portion and the side wing portion are integrally connected; The support portion is bonded to the buffer portion; The headrest part, the side wing part and the buffer part are all made of foam materials, and the support part is made of plastic.

4. A child seat, characterized in that: include: Seat body; The headrest assembly according to any one of claims 1 to 3, connected to the upper side of the seat body; The base is connected to the lower side of the seat body.

5. The child seat according to claim 4, characterized in that: The child seat further comprises a support assembly, the support assembly being connected to the front side of the base, the support assembly comprising a support rod and a first hinged portion, the base comprising a second hinged portion located at the front side, one end of the first hinged portion being connected to the support rod and the other end being hinged to the second hinged portion, so that the support rod can rotate relative to the base to a first position and a second position, when the support rod is in the first position, one end is connected to the second hinged portion and the other end extends downward, and when the support rod is in the second position, one end is connected to the second hinged portion and the other end extends toward the rear side of the base; The support rod comprises a first rod and a second rod, wherein a first end of the first rod is connected to the first hinge portion, a second end opposite to the first end is connected to the second rod, and the second rod is configured to be able to extend into or extend out of the interior of the first rod; The first hinged portion includes a connecting piece and a protective cover, wherein the connecting piece is connected to the first rod and hinged to the base, and the protective cover is disposed on the connecting piece and the first end.

6. The child seat according to claim 5, characterized in that: The connecting piece includes a first hinged end, a bent portion, and a second hinged end, the two ends of the bent portion are respectively connected to the first hinged end and the second hinged end, the bent portion is connected to the first end and is arranged around the first end along the circumferential direction of the outer peripheral wall of the first end, the first hinged end and the second hinged end are arranged opposite to each other with a gap, and the first hinged end and the second hinged end are both hinged to the second hinged portion; The protective cover comprises a first cover body and a second cover body connected to the first cover body, the first cover body covers the first end and the bent portion, the second cover body covers the first hinged end and the second hinged end, and the second cover body is hinged to the second hinged portion; The first hinged end is provided with a first hinged hole, the second hinged end is provided with a second hinged hole, the second cover body is provided with a third hinged hole and a fourth hinged hole, the third hinged hole is located on the side of the first hinged hole away from the second hinged hole, the fourth hinged hole is located on the side of the second hinged hole away from the first hinged hole, the first hinged part also includes a hinge shaft, and the hinge shaft is sequentially passed through the third hinged hole, the first hinged hole, the second hinged part, the second hinged hole and the fourth hinged hole.

7. The child seat according to claim 6, characterized in that: The first cover body comprises a side wall plate arranged around the curved portion and a top wall plate connected to one end of the side wall plate, wherein the inner wall of the side wall plate facing the curved portion is provided with a plurality of first ribs, each of the first ribs is distributed along the circumferential direction of the outer peripheral wall of the first end and is arranged at intervals from each other, and each of the first ribs abuts against the curved portion respectively; A clamping protrusion is provided on one side of the side wall plate close to the bent portion, and a clamping groove is provided on the bent portion, and the clamping protrusion extends into the clamping groove; The first rib comprises a first section abutting against the bent portion and a second section located between the first section and the top wall plate, the first section protruding from the side wall plate is smaller than the second section protruding from the side wall plate, and the first end and the bent portion are spaced apart from the second section; The inner wall of the second cover body is provided with a second rib, the second rib abuts the first hinged end or the second hinged end, the dimension of the second rib protruding from the second cover body is smaller than the dimension of the second section protruding from the side wall plate, and the dimension W of the second rib protruding from the second cover body satisfies: W≤5.5mm.

8. The child seat according to claim 7, characterized in that: Along the length direction of the first rod, the distance between the bent portion and the second section is greater than the distance between the first end and the second section, the end wall of the first hinged end facing the top wall plate is flush with the end wall of the first end facing the top wall plate, and the end wall of the second hinged end facing the top wall plate is flush with the end wall of the first end facing the top wall plate; Along the length direction of the first rod, a distance D between the end wall of the bent portion facing the top wall plate and the end wall of the first end facing the top wall plate satisfies D≥1mm; The end wall of the bent portion facing the top wall plate is provided with a paint layer, and the thickness of the paint layer is less than or equal to the distance D.

9. The child seat according to claim 6, characterized in that: The second hinged portion includes a limiting portion, the limiting portion includes a first limiting protrusion, the second cover body includes a second limiting protrusion, the second cover body is configured to be able to rotate to a third position and a fourth position relative to the second hinged portion, when the second cover body rotates to the third position, the second limiting protrusion abuts against the first limiting protrusion, the support rod is located at the first position, the first limiting protrusion limits the second cover body from rotating to the fourth position, during the process of the second cover body rotating from the third position to the fourth position, the second limiting protrusion passes over the first limiting protrusion, and when the second cover body is located at the fourth position, the support rod is located at the second position; The limiting part is an injection molded part, and the limiting part is provided with a material taking groove, and the groove wall of the material taking groove is separated from the injection molding waste; The second hinged part also includes a hinged seat, the limiting part is connected to the hinged seat, the first hinged part is hinged to the hinged seat, the limiting part includes a limiting block and a fixed column, the limiting block is arranged around the hinge axis, the fixed column is connected to the wall of the limiting block facing the hinge axis, the first limiting protrusion is located on the surface of the limiting block away from the fixed column and protrudes from the hinged seat, and the material extraction groove is arranged on the side of the limiting block.

10. The child seat according to claim 4, characterized in that: The headrest assembly is movably connected to the seat body and is configured to be adjustable to at least two positions with different vertical heights relative to the seat body; The seat body is provided with a plurality of adjustment slots distributed vertically, the headrest assembly includes a linkage member and a limit rod, the limit rod is configured to be able to rotate relative to the headrest body to a locked position and an unlocked position, the limit rod is locked in one of the adjustment slots when it is rotated to the locked position to fix the relative position of the headrest body and the seat body, and the limit rod is disengaged from the adjustment slot when it is rotated to the unlocked position so that the headrest body can slide up and down relative to the seat body, and the linkage member is configured to drive the headrest body from the locked position to the unlocked position after being driven; The headrest assembly further includes a pivoting member, the pivoting member is rotatably connected to the headrest body and connected to the limit rod, the linkage member is slidably connected to the headrest body, and is configured to slide relative to the headrest body and push the pivoting member to rotate after being driven, thereby driving the limit rod to rotate from the locked position to the unlocked position; The seat body is movably connected to the base, and the seat body is configured to translate laterally, rotate along a transverse axis, or rotate along a vertical axis relative to the base; At least one side of the seat body is provided with a side impact protection block.

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