Handrail device and child seat

Abstract

The application discloses a handrail device and a child seat. The handrail device comprises a support, a handrail and a limiting assembly. The support has a first connecting part and a second connecting part. The first connecting part is used for connecting with a seat body. The second connecting part has a first connecting surface. The handrail has a second connecting surface. The first connecting surface is connected to the second connecting surface. The limiting assembly comprises at least two limiting assemblies which are arranged at intervals. The limiting assembly comprises a first limiting part and a second limiting part. One of the first limiting part and the second limiting part is connected to the support, and the other is connected to the handrail. The first limiting part has a first plug-in hole. The second limiting part is plugged into the first plug-in hole and tightly matches with the inner wall of the first plug-in hole, so as to reduce the risk of sliding of the first connecting surface relative to the second connecting surface, and further reduce the risk of shaking of the handrail, thereby improving the safety of the child seat.

Description

Technical Field

[0001] This application relates to the field of child car seat technology, and in particular to an armrest device and a child car seat. Background Technology

[0002] Child car seats are typically installed in car seats to secure young children and improve safety while the vehicle is in motion. A common child car seat consists of a seat body and armrests on either side of the seat body. The armrests generally include a support frame and an armrest: the support frame is fixed to the seat body, and the armrest is attached to the upper part of the support frame for the child to hold onto or lean against. However, some technologies use a method where the edge of the armrest is fastened to the upper part of the support frame to achieve the connection between the armrest and the support frame. This can easily cause the armrest to wobble during vehicle turns, rapid acceleration, or sudden deceleration, posing a safety hazard. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an armrest device that can be used in child seats to improve the safety of child seats.

[0004] This application also provides a child seat that includes the aforementioned armrests.

[0005] The handrail device according to a first aspect of this application includes: a support member, a handrail, and a limiting component.

[0006] The support member has a first connecting portion and a second connecting portion. The first connecting portion is used to connect with the seat body, and the second connecting portion has a first connecting surface. The armrest has a second connecting surface, and the first connecting surface is connected to the second connecting surface. A limiting assembly is also included. The armrest device includes at least two spaced-apart limiting assemblies. Each limiting assembly includes a first limiting member and a second limiting member. One of the first limiting member and the second limiting member is connected to the support member, and the other is connected to the armrest. The first limiting member has a first insertion hole, and the second limiting member is inserted into the first insertion hole and tightly fitted against the inner wall of the first insertion hole.

[0007] The handrail device according to the embodiments of this application has at least the following beneficial effects: The armrest device of this embodiment includes at least two spaced-apart limiting components, each including a first limiting member and a second limiting member. One of the first and second limiting members is connected to the armrest, and the other is connected to a support member. The first armrest has a first insertion hole, and the second limiting member is tightly inserted into the first insertion hole. This not only restricts rotation and movement between the armrest and the support member but also strengthens the shear strength and rigidity between them, thereby reducing the risk of slippage between the first connecting surface and the second connecting surface. Therefore, when the armrest device of this embodiment is used in a child seat, it can reduce the risk of armrest wobbling, thus improving the safety of the child seat.

[0008] According to some embodiments of this application, the handrail device further includes a plurality of fasteners; The handrail has multiple fastening holes, the support member has multiple threaded holes, and the fastener passes through the fastening holes and is threadedly connected to the support member through the threaded holes; or... The support member has multiple fastening holes, the handrail has multiple threaded holes, the fastener passes through the fastening holes and is threaded to the handrail through the threaded holes.

[0009] In the above embodiments, the handrail device also includes a plurality of fasteners, one end of which is connected to the handrail and the other end of which is connected to the support member, so as to improve the connection strength between the handrail and the support member and thereby reduce the risk of handrail swaying.

[0010] According to some embodiments of this application, the fastener includes a second limiting member, and the wall of the first insertion hole has threads to form the threaded hole; or, The fastening hole communicates with the first insertion hole, and the second limiting member has a threaded hole. The fastener passes through the fastening hole and the first insertion hole in sequence, and is threadedly connected to the second limiting member through the threaded hole.

[0011] In the above embodiments, the fastener includes a second limiting member, which simplifies the structure of the handrail device and reduces manufacturing costs. Alternatively, the fastener communicates with the first insertion hole, the second limiting member has a threaded hole, and the locking member passes through the fastening hole and the first insertion hole in sequence. The second limiting member provides a longer effective thread depth for the threaded hole, thereby increasing the engagement length between the fastener and the threaded hole, improving the connection strength between the handrail and the support, further reducing the risk of swaying, and ensuring the safety and comfort of children during use.

[0012] A child seat according to a second aspect of this application includes: a seat body and an armrest device according to a first aspect of this application.

[0013] The seat body includes a seating surface for a child to sit on; the child seat includes two armrests connected to the seat body and respectively connected to the left and right sides of the seating surface.

[0014] The child seat according to the embodiments of this application has at least the following beneficial effects: The armrest device using the first aspect embodiment includes a limiting component comprising a first limiting member and a second limiting member. One of the first limiting member and the second limiting member is connected to the armrest, and the other is connected to a support member. The first armrest has a first insertion hole, and the second limiting member is tightly inserted into the first insertion hole. This not only restricts rotation between the armrest and the support member but also strengthens the shear strength and rigidity between them, thereby reducing the risk of slippage between the first connecting surface and the second connecting surface, thus reducing the risk of armrest wobbling and improving the safety of the child seat.

[0015] According to some embodiments of this application, the seat body includes a mounting portion having a second insertion hole, and the first connecting portion is inserted into the second insertion hole and tightly fitted with the inner wall of the second insertion hole.

[0016] In the above embodiments, the tight fit between the first connecting part and the second insertion hole further enhances the overall stability of the seat body and the armrest device, further reduces the risk of the armrest swaying relative to the seat body, and improves the safety of the child seat during use.

[0017] According to some embodiments of this application, the plug portion is located inside the second plug hole and is spaced apart from the inner wall of the second plug hole to form a circumferential plug groove. The first connecting portion is plugged into the plug groove. The end of the first connecting portion opposite to the second connecting portion also has a third plug hole. The plug portion is plugged into the third plug hole and is tightly fitted with the inner wall of the third plug hole.

[0018] In the above embodiment, the inner wall of the plug-in part and the second plug-in hole are spaced apart to form a plug-in groove. The connecting part is plugged into the plug-in groove, and the plug-in part is tightly fitted with the third plug-in hole so that the support member and the seat body form a double plug-in structure, which further enhances the connection stability between the support member and the seat body, thereby reducing the risk of the armrest wobbling relative to the seat body and improving the safety of the child seat when in use.

[0019] According to some embodiments of this application, the direction in which the support member is inserted into the second insertion hole is defined as a first direction; The seat body also includes a locking member, which includes a first elastic part and a first snap-fit ​​part. One end of the first elastic part is connected to the insertion part, and the first snap-fit ​​part is connected to the other end of the first elastic part and protrudes into the insertion groove along a second direction. The second direction is perpendicular to the first direction. The side of the first snap-fit ​​part facing away from the first direction has a first guide surface. Along the first direction, the distance between the first guide surface and the inner wall of the second insertion hole gradually decreases. The first connecting part also has a first slot communicating with the third insertion hole. The first slot is recessed along the second direction, and the first engaging part engages in the first slot.

[0020] In the above embodiment, the distance between the first guide surface and the inner wall of the second insertion hole gradually decreases along the first direction. Therefore, when the support member is inserted into the second insertion hole along the first direction, the support member slides against the first guide surface, causing the first elastic part to deform away from the inner wall of the second insertion hole. When the first slot moves to the position of the first engaging part, the first engaging part automatically extends into the first slot under the action of the first elastic part, thereby realizing the connection between the support member and the seat body, making the connection method between the armrest device and the seat body simpler.

[0021] According to some embodiments of this application, the support member further includes a retaining portion, which is disposed around the side of the first connecting portion and protrudes from the first connecting portion, and the retaining portion abuts against the end face of the mounting portion on the side opposite to the first direction.

[0022] In the above embodiment, the end face of the supporting part abuts against the mounting part. Therefore, when the armrest tends to bend under horizontal force, the supporting part can press against the seat body so that the mounting part provides certain support for the support member, thereby reducing the risk of armrest bending and deformation, further enhancing the stability of the overall seat structure, thereby reducing the risk of armrest swaying and improving the safety of the child seat.

[0023] According to some embodiments of this application, the first latching portion has a first limiting surface facing along the first direction, and the inner wall of the first slot includes a second limiting surface facing away from the first direction. When the abutting portion abuts against the mounting portion, the first limiting surface abuts against the second limiting surface.

[0024] In the above embodiment, when the abutting part abuts against the mounting part, the first limiting surface abuts against the second limiting surface. Therefore, during the installation process, when the support member is inserted along the first direction, when the abutting part abuts against the mounting part, it can restrict the support member from continuing to move along the first direction. At the same time, when the first limiting surface abuts against the second limiting surface, it can restrict the support member from moving away from the first direction, thereby making the armrest device stably engaged with the seat body and reducing the risk of armrest wobbling.

[0025] According to some embodiments of this application, the child seat further includes a first storage component connected to the seat body.

[0026] In the above embodiments, the child seat also includes a first storage component, which can be used to place items, thereby improving the practicality of the child seat.

[0027] According to some embodiments of this application, the seat body has a fourth insertion hole, the first storage member includes a first storage part and a third connecting part, the third connecting part is connected to the first storage part, the third connecting part can be inserted into the fourth insertion hole in a third direction, the inner wall of the fourth insertion hole includes a third limiting surface facing in the third direction, the third connecting part has a fourth limiting surface, and the fourth limiting surface abuts against the third limiting surface.

[0028] In the above embodiments, the connection between the first storage component and the seat body is achieved through the cooperation between the fourth insertion hole, the third limiting surface and the fourth limiting surface, which makes the connection between the first storage component and the seat body simpler and reduces the installation difficulty.

[0029] According to some embodiments of this application, the inner wall of the fourth insertion hole has a second groove that is recessed radially, and the groove wall of the second groove includes the third limiting surface; The first placement component includes a plurality of third connecting portions distributed around an axis parallel to the third direction. Each third connecting portion includes a second elastic portion and a second snap-fit ​​portion. The second elastic portion is connected to the first placement component, and the second snap-fit ​​portion is connected to the second elastic portion. The second snap-fit ​​portion protrudes from the second elastic portion away from the axis and has a fourth limiting surface. The second snap-fit ​​portion has a second guide surface on one side facing the third direction. Along the third direction, the plurality of second guide surfaces gradually converge. The inner wall of the fourth insertion hole can slide against the second snap-fit ​​portion to deform the second elastic portion. The second snap-fit ​​portion is inserted into the second slot.

[0030] In the above embodiment, along the third direction, multiple second guide surfaces gradually converge. Therefore, when the fourth connecting part is inserted into the fourth insertion hole along the third direction, the inner wall of the fourth insertion hole can slide against the second guide surface, causing the second elastic part to automatically deform. When the fourth limiting surface moves to the fourth limiting surface, the fourth limiting surface automatically moves towards the third limiting surface and abuts against the third limiting surface under the elastic force of the second elastic part, thereby making the installation of the child seat in this embodiment simpler.

[0031] According to some embodiments of this application, the third connecting portion further includes a first reinforcing portion, which is connected to the side of the second elastic portion facing the axis and connected to the first placement portion.

[0032] In the above embodiment, the first reinforcing part is located at the junction of the second elastic part and the first supporting part to form a triangular rib structure, thereby providing additional support for the second elastic part, reducing the risk of deformation of the second elastic part, and thus reducing the risk of the first supporting member falling off the seat body.

[0033] According to some embodiments of this application, the seat body further has a mounting groove with a horizontally oriented opening, the fourth insertion hole is located on the bottom wall of the mounting groove, a portion of the first placement member is located in the mounting groove and a portion extends out of the mounting groove from the opening, and the side wall of the mounting groove has a third slot, the third slot extending on the upper surface of the seat body in a direction opposite to the third direction. The third slot includes a first slot segment and a second slot segment. One end of the first slot segment is connected to the mounting slot and faces the opening, and the other end is connected to the second slot segment. The angle between the first slot segment and the second slot segment is not equal to 0. The first storage component further includes a fourth connecting part, a first connecting segment and a second connecting segment. One end of the first connecting segment is connected to the first storage part, and the other end is connected to the second connecting segment. The angle between the second connecting segment and the first connecting segment is not equal to 0. The first connecting segment is tightly engaged with the first slot segment, and the second connecting segment is tightly engaged with the second slot segment.

[0034] In the above embodiment, part of the first storage component is located within the mounting groove, and part extends out from the opening. The tight fit between the fourth connecting part and the third slot enhances the connection strength between the first storage component and the seat body, thereby reducing the risk of the first storage component detaching from the seat body. That is, in this embodiment, the intrusion of the first storage component into the space of the seat body can be reduced, ensuring the comfort of the child while maintaining the connection strength between the first storage component and the seat body.

[0035] According to some embodiments of this application, the child seat further includes a second storage component, and the seat body also has a storage cavity and a storage opening communicating with the storage cavity. The second storage component is movably connected to the seat body and can enter or extend from the storage cavity through the storage opening.

[0036] In the above embodiment, the second storage component can extend into the storage cavity, thereby reducing the risk of items placed in the second storage component falling out and improving the practicality of the child seat in this embodiment.

[0037] According to some embodiments of this application, the second storage component includes a second storage part and a fifth connecting part, the fifth connecting part being connected to the second storage part and movably connected to the seat body, the fifth connecting part having a weight-reducing groove, and the second storage component further includes a second reinforcing part, the second reinforcing part being connected to the inner wall of the weight-reducing groove.

[0038] In the above embodiment, the fifth connecting part has a weight-reducing groove, thereby reducing the weight of the second storage component and improving the overall lightness of the seat. At the same time, the second reinforcing part can ensure the strength of the fifth connecting part and reduce the risk of deformation of the fifth connecting part, thereby reducing the risk of the second storage component shaking due to deformation of the fifth connecting part, and further reducing the risk of items placed on the second storage component falling off.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a child seat according to an embodiment of this application; Figure 2 for Figure 1 Explosion diagram of the central handrail device; Figure 3 for Figure 2 Schematic diagram of the middle support component; Figure 4 for Figure 1 Sectional view in; Figure 5 for Figure 4 A magnified view of area A in the middle; Figure 6 for Figure 4 A magnified view of area B in the middle; Figure 7 for Figure 1 A partial structural diagram; Figure 8 for Figure 7 A magnified view of area C in the middle; Figure 9 for Figure 7 Schematic diagram of the upper and middle shell; Figure 10 for Figure 7 Schematic diagram of the lower and middle shell; Figure 11 for Figure 1 Another sectional view; Figure 12 for Figure 11 A magnified view of region D in the middle; Figure 13 for Figure 1 Partial diagram of the explosion; Figure 14 for Figure 13 A magnified view of region E in the middle; Figure 15 for Figure 1 Another schematic diagram of a child car seat in a different configuration; Figure 16 for Figure 15 A schematic diagram of the structure of the second placement component; Figure 17 for Figure 1 Schematic diagram of the middle section.

[0041] Figure label: Handrail device 100, support member 110, first connecting part 111, third insertion hole 1111, first slot 1112, second limiting surface 1113, second connecting part 112, first connecting surface 1121, fastening hole 1122, abutment part 113, handrail 120, second connecting surface 121. Seat body 200, upper shell 201, lower shell 202, seating surface 210, mounting part 220, second insertion hole 221, insertion part 230, insertion groove 240, locking member 250, first elastic part 251, first snap-fit ​​part 252, first guide surface 2521, first limiting surface 2522, slider 260, fourth insertion hole 270, third limiting surface 271, first hole segment 272, second hole segment 273, mounting groove 280, opening 281, third snap-fit ​​groove 290, first groove segment 291, second groove segment 292; Fixed system 300; First placement component 400, first placement part 410, third connecting part 420, fourth limiting surface 421, second elastic part 422, second snap-fit ​​part 423, second guide surface 4231, first reinforcing part 424, fourth connecting part 430, first connecting segment 431, second connecting segment 432. Second storage component 500, second storage part 510, fifth connecting part 520, weight reduction groove 521, slide groove 522, second reinforcing part 530; Limiting component 600, first limiting member 610, first insertion hole 611, second limiting member 620, threaded hole 621; Fastener 700. Detailed Implementation

[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0043] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0045] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0046] Child car seats are typically installed in car seats to secure young children and improve safety during vehicle travel. A common child car seat includes the seat body and armrests on both sides of the seat body. The armrests generally consist of a support frame and an armrest: the support frame is fixed to the seat body, and the armrest is attached to the upper part of the support frame for the child to hold onto or lean against. Some technologies use an edge-to-edge fastening method to connect the armrest to the upper part of the support frame. However, to ensure the seat's lightweight design, the walls of the armrests and support frames are usually thin, resulting in a thinner and shallower edge-to-edge fastening area. Therefore, during vehicle turns, rapid acceleration, or rapid deceleration, the fastening area of ​​the armrest and support frame is prone to deformation, causing the armrest to wobble or detach, thus posing a safety hazard to the child car seat.

[0047] In view of the above background, this application proposes an armrest device that can be used in child seats to improve the safety of child seats. (See reference...) Figures 1 to 5 The handrail device 100 of the first aspect of this application includes: a support member 110, a handrail 120 and a limiting component 600.

[0048] The support member 110 is formed from high-strength materials such as stainless steel, aluminum alloy, polypropylene, or high-density polyethylene. The support member 110 includes a first connecting portion 111 and a second connecting portion 112. The first connecting portion 111 is used to connect to the seat body, and the second connecting portion 112 has a first connecting surface 1121. The armrest 120 has a second connecting surface 121, which is connected to the first connecting surface 1121. Similarly, the armrest 120 is formed from high-strength materials such as polypropylene, high-density polyethylene, or foamed polypropylene, preferably non-metallic materials, to avoid discomfort to young children caused by hot or cold hands in high or low temperatures. Furthermore, the armrest 120 can also be formed from a separate high-strength base and a soft support portion, with the high-strength base connecting to the support member 110 to ensure connection strength. The armrest portion is made of soft and durable materials such as silicone or soft plastic to improve the comfort of young children.

[0049] Handrail device 100 includes at least two spaced-apart limiting components 600 (such as...) Figure 2 and Figure 5 As shown, the limiting component 600 includes a first limiting member 610 and a second limiting member 620. One of the first limiting member 610 and the other limiting member 620 is connected to the support member 110, and the other is connected to the handrail 120. The first limiting member 610 has a first insertion hole 611, and the second limiting member 620 is inserted into the first insertion hole 611 and tightly fitted against the inner wall of the first insertion hole 611. Exemplarily, the first limiting member 610 and the support member 110 are an integral structure (e.g., ...). Figure 3As shown), it can be manufactured using injection molding or integral machining. Similarly, the second limiting member 620 and the handrail 120 are an integral structure (as shown). Figure 2 (As shown). Alternatively, the first limiting member 610 and the handrail 120 may be an integral structure, and the second limiting member 620 and the support member 110 may be an integral structure.

[0050] Specifically, the limiting component 600 includes a first limiting member 610 and a second limiting member 620. One of the first limiting member 610 and the second limiting member 620 is connected to the armrest 120, and the other is connected to the support member 110. The first armrest 120 has a first insertion hole 611, and the second limiting member 620 is tightly inserted into the first insertion hole 611. This not only restricts rotation between the armrest 120 and the support member 110, but also strengthens the shear strength and rigidity between the armrest 120 and the support member 110, thereby reducing the risk of slippage between the first connecting surface 1121 and the second connecting surface 121. Therefore, when the armrest device 100 of this embodiment is used in a child seat, the risk of the armrest 120 wobbling can be reduced, thus improving the safety of the child seat.

[0051] Specifically, for ease of explanation, for example, both the first connecting surface 1121 and the second connecting surface 121 are horizontally arranged, and the first insertion hole 611 extends vertically, that is, during installation, the second limiting member 620 is inserted into the first insertion hole 611 in a vertically downward direction. There are at least two second limiting members 620 and at least two first insertion holes 611, and the second limiting members 620 are tightly fitted with the first insertion holes 611. Thus, the inner wall of the first insertion hole 611 can restrict the position of the second limiting members 620, which can not only prevent the two second limiting members 620 from moving in the horizontal direction, but also prevent the two second limiting members 620 from rotating in the horizontal and vertical directions, thereby preventing the handrail 120 from moving and rotating relative to the support member in the horizontal direction, as well as rotating in the vertical direction. Therefore, it can reduce the swaying caused by the displacement and rotation of the armrest 120 relative to the support member 110 when the armrest 120 is subjected to lateral forces (such as during rapid acceleration, deceleration, or sharp turns of the vehicle), thereby improving the safety of the child seat. In addition, the multiple limiting components 600 can also disperse the lateral forces, which can not only improve the overall lateral shear strength but also improve the overall lateral stiffness, further reducing the risk of horizontal swaying of the armrest 120, thereby improving the safety of the child seat and ensuring the safety of young children when riding in the car.

[0052] In some embodiments, the handrail device 100 further includes a plurality of fasteners 700 (such as... Figure 5As shown, the handrail 120 has multiple fastening holes 1122, and the support member 110 has multiple threaded holes 621. Fasteners 700 pass through the fastening holes 1122 and are threaded to the support member 110 through the threaded holes 621. For example, stainless steel bolts are used for the fasteners 700. The fixation of multiple fasteners 700 further enhances the connection stability between the handrail 120 and the support member 110, ensuring that the handrail device 100 remains stable under various road conditions, effectively reducing swaying caused by external impacts, and providing more reliable safety for children. Similarly, in some embodiments, the support member 110 has multiple fastening holes 1122, and the handrail 120 has multiple threaded holes 621. Fasteners 700 pass through the fastening holes 1122 and are threaded to the handrail 120 through the threaded holes 621; this will not be elaborated further here.

[0053] It should be noted that the appendix Figure 2 The provision of three threaded holes is not to be interpreted as the only limitation of this embodiment. It can also be set to two, four, or five or any other number, as long as it can improve the connection strength between the handrail 120 and the support 110.

[0054] In some embodiments, the fastener 700 includes a second limiting member 620, and the wall of the first insertion hole 611 is threaded to form a threaded hole 621. That is, in this embodiment, the second limiting member 620 serves both as a limiting component and as a fastener 700, thereby simplifying the structure of the handrail device 100 in this embodiment, reducing the number of parts, and thus lowering manufacturing costs. At the same time, it reduces assembly steps and improves production efficiency.

[0055] In some embodiments, the fastening hole 1122 communicates with the first insertion hole 611, the second limiting member 620 has a threaded hole 621, and the fastener 700 passes through the fastening hole 1122 and the first insertion hole 611 in sequence, and is threadedly connected to the second limiting member 620 through the threaded hole 621. For example, the first limiting member 610 is connected to the handrail 120 and is an integral structure with the handrail 120. The handrail 120 also has a fastening hole 1122, which communicates with the first insertion hole 611, and the second limiting member 620 is connected to the support member 110. Or, as... Figure 5As shown, the first limiting member 610 is connected to the support member 110 and is an integral structure with the support member 110. The support member 110 has a fastening hole 1122, which is connected to the first insertion hole 611. The second limiting member 620 is connected to the handrail 120. Specifically, the threaded hole 621 is provided in the second limiting member 620. Thus, the second limiting member 620 not only serves to limit the space between the armrest 120 and the support member 110, but also provides a longer effective thread depth for the threaded hole 621. This increases the engagement length between the fastener 700 and the threaded hole 621, thereby improving the connection strength between the armrest 120 and the support member 110, further reducing the risk of swaying, and ensuring the safety and comfort of children when using the device. Furthermore, the fastener 700 is located inside the first limiting member 610 and the second limiting member 620, providing certain support for the first limiting member 610 and the second limiting member 620, further reducing the risk of deformation of the first limiting member 610 and the second limiting member 620, and enhancing the stability of the overall structure.

[0056] Reference Figure 1 According to a second aspect embodiment of this application, a child seat includes a seat body and armrest devices 100 as described in the above embodiment. The seat body 200 includes a seating surface 210 for a child to sit on. The child seat includes two armrest devices 100 connected to the seat body 200 and respectively connected to the left and right sides of the seating surface 210 for the child to hold onto or lean against. The child seat also includes a fixing system 300 connected to the seat body 200 and used to connect to a vehicle seat to securely fix the child seat to the vehicle seat.

[0057] Specifically, this embodiment adopts the armrest device 100 of the first aspect embodiment. The limiting component 600 includes a first limiting member 610 and a second limiting member 620. One of the first limiting member 610 and the second limiting member 620 is connected to the armrest 120, and the other is connected to the support member 110. The first armrest 120 has a first insertion hole 611, and the second limiting member 620 is tightly inserted into the first insertion hole 611. Therefore, not only can the rotation between the armrest 120 and the support member 110 be restricted, but the shear strength and rigidity between the armrest 120 and the support member 110 can also be strengthened, thereby reducing the risk of the first connecting surface 1121 sliding relative to the second connecting surface 121, and further reducing the risk of the armrest 120 wobbling, thus improving the safety of the child seat.

[0058] It should be noted that since this embodiment adopts all the technical features of the first aspect embodiment, this embodiment has all the beneficial effects brought by the first aspect embodiment, which will not be repeated here.

[0059] Reference Figure 7In some embodiments, the seat body 200 includes a mounting portion 220 with a second insertion hole 221. A first connecting portion 111 is inserted into the second insertion hole 221 and tightly engages with the inner wall of the second insertion hole 221. Specifically, the tight engagement between the first connecting portion 111 and the second insertion hole 221 prevents the support member 110 from moving or swaying relative to the seat body 200. Therefore, during vehicle operation, regardless of the force applied in any direction (front, back, left, or right), the first connecting portion 111 can remain tightly engaged with the inner wall of the second insertion hole 221, transmitting the force to the seat body 200. This further enhances the overall stability of the seat body 200 and the armrest device 100, further reducing the risk of the armrest 120 swaying relative to the seat body 200, thereby improving the safety of the child seat during use.

[0060] Furthermore, based on the above embodiments, the second insertion hole 221 is, for example, an elliptical, square, or triangular non-circular hole, and correspondingly, the cross-section of the first connecting part 111 is an elliptical, square, or triangular non-circular structure. Thus, the inner wall of the second insertion hole 221 can not only restrict the horizontal movement of the first connecting part 111, but also restrict its horizontal rotation, further enhancing the stability of the connection and reducing the risk of handrail swaying.

[0061] Reference Figure 7 and Figure 8 In some embodiments, the seat body 200 also includes a connector 230 (e.g., Figure 8 As shown, the insertion part 230 is located inside the second insertion hole 221 and is spaced apart from the inner wall of the second insertion hole 221 to form a surrounding insertion groove 240. The first connecting part 111 is inserted into the insertion groove 240. The end of the first connecting part 111 opposite to the second connecting part 112 also has a third insertion hole 1111. The insertion part 230 is inserted into the third insertion hole 1111 and is tightly fitted with the inner wall of the third insertion hole 1111. Specifically, the insertion part 230 and the inner wall of the second insertion hole 221 are spaced apart to form the insertion groove 240. The insertion part 230 is, for example, cylindrical, square or triangular in shape. The third insertion hole 1111 is correspondingly designed as a cylindrical hole, square hole or triangular hole. The insertion part 230 is inserted into the third insertion hole 1111, thereby realizing a double insertion fit between the armrest device 100 and the seat body 200. Therefore, when the armrest device 100 is subjected to a lateral force, both the mounting part 220 and the plug-in part 230 can provide certain support to the support member 110, disperse the lateral force, and reduce local stress concentration. This can reduce the pressure on the mounting part 220 from the support member 110, thereby reducing the risk of deformation of the mounting part 220 and the risk of the armrest 120 wobbling, thus improving the safety of the child seat during use.

[0062] Reference Figure 3 and Figure 6 In some embodiments, the direction in which the support member 110 is inserted into the second insertion hole 221 is defined as the first direction, so as to Figure 6 As shown in the example, the first direction is vertically downward. The first connecting part 111 also has a first slot 1112 communicating with the third insertion hole 1111 (e.g., Figure 3 As shown), the first slot 1112 is recessed along the second direction (the second direction is perpendicular to the first direction), and the first engaging portion 252 engages within the first slot 1112 (as shown). Figure 6 (As shown). The seat body 200 also includes a locking member 250, which includes a first elastic part 251 and a first snap-fit ​​part 252. The first elastic part 251 is, for example, a metal spring piece connected to the insertion part 230 by welding or threading, or the first elastic part 251 and the insertion part 230 are an integral structure. The first snap-fit ​​part 252 is connected to the other end of the first elastic part 251 and protrudes into the insertion groove 240 along the second direction. The side of the first snap-fit ​​part 252 facing away from the first direction also has a first guide surface 2521. Along the first direction, the distance between the first guide surface 2521 and the inner wall of the second insertion hole 221 gradually decreases. The first guide surface 2521 is, for example, an inclined plane inclined towards the inner wall of the second insertion hole 221, or an arc surface towards the inner wall of the second insertion hole 221. Therefore, when the support member 110 is inserted into the second insertion hole 221 along the first direction, the bottom of the support member 110 will abut against the first guide surface 2521. As the support member 110 is pressed down further, the support member 110 slides relative to the first guide surface 2521, causing the first elastic part 251 to deform away from the inner wall of the second insertion hole 221. When the first slot 1112 moves to the position of the first locking part 252, the first locking part 252 automatically extends into the first slot 1112 under the action of the first elastic part 251, thereby realizing the quick connection between the support member 110 and the seat body 200 and improving the production efficiency of the child seat in this embodiment.

[0063] It should be noted that the appendix Figure 6 The inclusion of two locking elements 250 in the child seat is not to be construed as the only limitation of this embodiment. The number of locking elements 250 may be any number, such as one, two, or three, as long as the connection strength between the support member 110 and the seat body 200 can be guaranteed.

[0064] Reference Figure 9 and Figure 10Based on the above embodiments, the seat body 200 includes a split upper shell 201 and a lower shell 202, which are connected by snaps or screws. The upper shell 201 includes a mounting portion 220, and the lower shell 202 includes a plug-in portion 230. Therefore, during manufacturing, the mounting portion 220 and the plug-in portion 230 can be processed separately, and a locking member 250 can be connected to the plug-in portion 230 outside the second plug-in hole 221. For example, the locking member 250 can be welded to the plug-in portion 230 outside the second plug-in hole 221, or it can be processed into a single structure through injection molding or other processes. Finally, the upper shell 201 and the lower shell 202 are assembled, thereby reducing the manufacturing difficulty of the child seat and improving production efficiency.

[0065] Reference Figure 3 and Figure 6 In some embodiments, the support member 110 further includes a retaining portion 113, which surrounds the side of the first connecting portion 111 and protrudes from the first connecting portion 111. The retaining portion 113 abuts against the end face of the mounting portion 220 facing away from the first direction, that is, the first limiting member 610 abuts against the upper surface of the mounting portion 220. Therefore, when the armrest 120 is subjected to a horizontal external force, the retaining portion 113 abuts against the end face of the mounting portion 220. Thus, the mounting portion 220 provides not only horizontal support to the support member 110 but also vertical support, thereby reducing the risk of bending and deformation of the armrest 120 and further reducing the risk of wobbling of the armrest 120, thereby improving the safety of the child seat.

[0066] Based on the above embodiments, the first latching portion 252 has a first limiting surface 2522 facing in the first direction, and the inner wall of the first latching groove 1112 includes a second limiting surface 1113 facing away from the first direction. When the holding portion 113 abuts against the mounting portion 220, the first limiting surface 2522 abuts against the second limiting surface 1113.

[0067] Specifically, when the abutting part 113 abuts against the mounting part 220, the first limiting surface 2522 abuts against the second limiting surface 1113. Therefore, during installation, when the support member 110 is inserted along the first direction, the abutting part 113 abuts against the mounting part 220, preventing the support member 110 from continuing to move along the first direction. At the same time, the second limiting surface 1113 of the support member 110 facing away from the first direction abuts against the first limiting surface 2522 of the locking member 250, preventing the support member 110 from moving away from the first direction, thereby stably engaging the armrest device 100 with the seat body 200, reducing the risk of the armrest device 100 wobbling, and improving the safety of the child seat in this embodiment.

[0068] Reference Figure 1In some embodiments, the child seat also includes a first storage component 400, which is connected to the seat body 200. The first storage component 400 is designed, for example, as a cup holder or a small storage box, for storing children's water cups, snacks, toys, and other items, making them easily accessible to children during the ride and thus improving the practicality of the child seat. At the same time, placing items in the dedicated first storage component 400 also prevents items from scattering during vehicle travel, ensuring a clean and tidy interior environment.

[0069] Reference Figures 11 to 13 In some embodiments, the seat body 200 has a fourth insertion hole 270 (e.g., Figure 13 As shown), the first storage component 400 includes a first storage portion 410 and a third connecting portion 420 (as shown). Figure 12 As shown, the third connecting part 420 is connected to the first placement part 410, and the third connecting part 420 can be inserted into the fourth insertion hole 270 in a third direction. The inner wall of the fourth insertion hole 270 includes a third limiting surface 271 facing in a third direction, and the third connecting part 420 has a fourth limiting surface 421, with the third limiting surface 271 abutting against the fourth limiting surface 421. Specifically, in this embodiment, the connection between the first placement member 400 and the seat body 200 is achieved through the cooperation between the fourth insertion hole 270 and the third limiting surface 271 and the fourth limiting surface 421. During installation, it is only necessary to insert the third connecting part 420 into the fourth insertion hole 270 in a third direction and abut the third limiting surface 271 against the fourth limiting surface 421, without the need for other locking devices, making the structure of this embodiment simpler and the assembly more convenient.

[0070] For example, in some embodiments, the first insertion hole 611 is provided with a protruding first protrusion, the first protrusion having a third limiting surface 271, the third connecting part 420 includes a second protrusion, the second protrusion having a fourth limiting surface 421, the first protrusion and the second protrusion are both non-annular structures, that is, during the installation process, the first protrusion and the second protrusion can be staggered, and the two can be brought into contact by rotating the fourth connecting part 430. Specifically, during installation, the first protrusion and the second protrusion are first staggered, and the third connecting part 420 is inserted into the fourth insertion hole 270 along a third direction (the third direction is, for example, a vertical downward direction, but not limited to this; depending on the specific structure of the first placement part 400 and the seat body 200, it can also be any direction such as a horizontal direction, as long as it can satisfy the installation of the first placement part and the seat body 200). When the fourth limiting surface 421 moves to align with the third limiting surface 271, the first placement part 400 is rotated to make the fourth limiting surface 421 and the third limiting surface 271 fit tightly together, ensuring a stable connection without the need for additional locking devices and locking steps, making the assembly of the child seat in this embodiment simpler.

[0071] For example, in some embodiments, the inner wall of the fourth insertion hole 270 has a second groove that is radially recessed, and the groove wall of the second groove includes a third limiting surface 271. Exemplarily, such as... Figure 7 As shown, the fourth insertion hole 270 includes a first hole segment 272 and a second hole segment 273 sequentially distributed along a third direction. The diameter of the second hole segment 273 is larger than the diameter of the first hole segment 272 (e.g., ...). Figure 12 As shown), this forms a second groove that is radially recessed relative to the inner wall of the first hole segment 272.

[0072] The first storage component 400 includes a plurality of third connecting portions 420 distributed around an axis parallel to a third direction. Each third connecting portion 420 includes a second elastic portion 422 and a second engaging portion 423. The second elastic portion 422 is connected to the first storage component 410, and the second engaging portion 423 is connected to the second elastic portion 422 and protrudes from the second elastic portion 422 away from the axis. The second engaging portion 423 has a fourth limiting surface 421, and a second guide surface 4231 is provided on the side of the second engaging portion 423 facing the third direction. Along the third direction, the plurality of second guide surfaces 4231 gradually converge, and the inner wall of the first hole segment 272 can slide against the second engaging portion 423 to deform the second elastic portion 422, so that the second engaging portion 423 can engage in the second slot.

[0073] Specifically, as the multiple second guide surfaces 4231 gradually converge along the third direction, when the third connecting part 420 is inserted into the fourth insertion hole 270 along the third direction, the inner wall of the first hole segment 272 will first contact the second guide surfaces 4231, and as the insertion depth increases, it will gradually squeeze the second locking part 423, causing the second elastic part 422 to deform inward. When the second locking part 423 passes through the first hole segment 272 and enters the second hole segment 273, the second elastic part 422 returns to its original shape under its own elastic force, causing the fourth limiting surface 421 to abut against the third limiting surface 271, thereby fixing the first placement member 400 without the need for additional fixing tools. This structure makes the installation of the child seat in this embodiment simpler.

[0074] Furthermore, as in the above embodiment, the seat body 200 includes a separate upper shell 201 and a lower shell 202. Based on this, in this embodiment, the mounting groove 280 is located in the upper shell 201, the fourth insertion hole 270 extends from the upper shell 201 to the lower shell 202, and the third limiting surface 271 is located in the lower shell 202. Therefore, when the fourth limiting surface 421 abuts against the third limiting surface 271, the connection strength between the upper shell 201 and the lower shell 202 can be improved.

[0075] Reference Figure 12In some embodiments, the third connecting portion 420 includes a first reinforcing portion 424, which is connected to the side of the second elastic portion 422 facing the axis and to the first storage portion 410. The first reinforcing portion 424 is designed as a triangular rib structure, for example. The first reinforcing portion 424, the second elastic portion 422, and the first storage portion 410 are integrally formed from the same material, for example. Therefore, when the second snap-fit ​​portion 423 is subjected to a large compressive force, the first reinforcing portion 424 can share part of the force, thereby reducing the degree of deformation of the second elastic portion 422, and further reducing the risk of the first storage component 400 falling off the seat body 200, thus improving the reliability of the child seat in this embodiment.

[0076] Reference Figure 13 and Figure 14 In some embodiments, the seat body 200 also has a mounting groove 280 with a horizontally oriented opening 281. A fourth insertion hole 270 is located on the bottom wall of the mounting groove 280. A portion of the first placement member 400 is located within the mounting groove 280, and a portion extends out of the mounting groove 280 from the opening 281, thereby reducing the intrusion of the first placement member 400 into the space of the seat body 200 and ensuring the child's seating space. The side wall of the mounting groove 280 has a third slot 290, which extends to the surface of the seat body 200 in a direction opposite to the third direction. The third slot 290 includes a first slot segment 291 and a second slot segment 292. One end of the first slot segment 291 is connected to the mounting groove 280 and faces the opening 281, and the other end is connected to the second slot segment 292. The angle between the first slot segment 291 and the second slot segment 292 is not equal to 0. Figure 14 As shown in the example, the second groove segment 292 is perpendicular to the first groove segment 291, forming a T-shaped groove.

[0077] The first storage component 400 further includes a fourth connecting portion 430, which includes a first connecting segment 431 and a second connecting segment 432. One end of the first connecting segment 431 is connected to the first storage component 410, and the other end is connected to the second connecting segment 432. The angle between the second connecting segment 432 and the first connecting segment 431 is not equal to 0. Figure 14 As shown in the example, the second connecting segment 432 is perpendicular to the first connecting segment 431 to form a T-shaped structure. The first connecting segment 431 is tightly engaged with the first groove segment 291, and the second connecting segment 432 is tightly engaged with the second groove segment 292. Since the angle between the second connecting segment 432 and the first connecting segment 431 is not equal to 0, when the first item 400 is subjected to a force toward the opening 281, the second connecting segment 432 can abut against the side wall of the second groove segment 292. That is, the side wall of the second groove segment 292 can exert a pulling force on the first item 400 away from the opening 281, thereby effectively preventing the risk of the first item 400 falling out of the mounting groove 280.

[0078] Furthermore, based on the above embodiments, the sidewall of the mounting groove 280 is adapted to the outer wall of the first placement member 400 so that the outer wall of the first placement member 400 fits against the inner wall of the mounting groove 280, thereby enhancing the stability of the first placement member 400. For example, the first placement member 400 is a cylindrical structure, and correspondingly, the inner wall of the mounting groove 280 is an arc-shaped curved surface.

[0079] Reference Figure 1 and Figure 15 In some embodiments, the child seat further includes a second storage component 500. The seat body 200 also has a storage cavity and a storage opening communicating with the storage cavity. The second storage component 500 is movably connected to the seat body 200 by means of rotational connection or movable connection, and can enter or exit the storage cavity through the storage opening. Therefore, during vehicle operation, easily dropped items can be placed in the second storage component 500 and extended into the storage cavity. The inner wall of the storage cavity can protect the items placed in the second storage component 500, preventing them from falling due to vehicle bumps. When it is necessary to retrieve an item, simply pull the second storage component 500 out from the storage opening. This convenient use reduces the risk of items placed in the second storage component 500 falling, improving the practicality of the child seat in this embodiment.

[0080] Reference Figure 16 In some embodiments, the second storage component 500 includes a second storage portion 510 and a fifth connecting portion 520. The fifth connecting portion 520 is connected to the second storage portion 510 and movably connected to the seat body 200. The fifth connecting portion 520 has a weight-reducing groove 521, thereby reducing the weight of the second storage component 500. This not only improves the overall portability of the seat, making it easier to install and move the child seat, but also reduces wear between the second storage component 500 and the seat body 200, thereby increasing the service life of the child seat in this embodiment. The second storage component 500 also includes a second reinforcing part 530, which is connected to the inner wall of the weight-reducing groove 521. The second reinforcing part 530 can effectively compensate for the reduced structural strength caused by the weight-reducing groove 521, ensure the rigidity of the fifth connecting part 520, reduce the risk of the fifth connecting part 520 deforming due to force during sliding, thereby reducing the risk of the second storage component 500 shaking due to the deformation of the fifth connecting part 520, and further reducing the risk of items placed on the second storage component 500 falling off.

[0081] Reference Figure 17Based on the above embodiments, the seat body 200 further includes a slider 260, and a fifth connecting portion 520 extends along a slide groove 522. The slide groove 522 extends in a set direction, and the slider 260 is slidably disposed within the slide groove 522. This allows the fifth connecting portion 520 to move relative to the slider 260 in a set direction, thereby enabling the second storage component 500 to be pulled out. Furthermore, perpendicular to the set direction, the slider 260 has two opposing and parallel third guide surfaces, and the slide groove 522 has two opposing and parallel fourth guide surfaces. The third guide surfaces slide against the fourth guide surfaces, ensuring that the fifth connecting portion 520 can only move in the set direction and cannot rotate. This improves the stability of the second storage component 500, prevents it from shaking, and reduces the risk of items placed on the second storage component 500 falling.

[0082] As described in the above embodiment, the seat body 200 includes a separate upper shell 201 and a lower shell 202, which are connected by snaps or screws. At least one of the upper shell 201 and the lower shell 202 has a groove. When the upper shell 201 is connected to the lower shell 202, a storage cavity is formed at the groove, thereby reducing the processing difficulty of the storage cavity. Furthermore, the upper shell 201 or the lower shell 202 includes a slider 260. As shown in the figure, the lower shell 202 includes a slider 260. Therefore, during installation, the second storage slot is first placed in the lower shell 202, and the slider 260 is inserted into the slide groove 522. Then, the upper shell 201 and the lower shell 202 are fixed by snaps or screws, thereby confining the slider 260 within the slide groove 522, making the assembly of the child seat in this embodiment simpler.

[0083] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this application. Furthermore, in the description of this application, the reference to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., means that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A handrail device, characterized in that, include: The support member has a first connecting portion and a second connecting portion, the first connecting portion being used to connect with the seat body, and the second connecting portion having a first connecting surface; The handrail has a second connecting surface, wherein the first connecting surface is connected to the second connecting surface; The handrail device includes at least two spaced-apart limiting components, each including a first limiting member and a second limiting member. One of the first limiting member and the second limiting member is connected to the support member, and the other is connected to the handrail. The first limiting member has a first insertion hole, and the second limiting member is inserted into the first insertion hole and tightly fitted with the inner wall of the first insertion hole.

2. The handrail device according to claim 1, characterized in that, The handrail device also includes a number of fasteners; The handrail has multiple fastening holes, the support member has multiple threaded holes, and the fastener passes through the fastening holes and is threadedly connected to the support member through the threaded holes; or... The support member has multiple fastening holes, the handrail has multiple threaded holes, the fastener passes through the fastening holes and is threaded to the handrail through the threaded holes.

3. The handrail device according to claim 2, characterized in that, The fastener includes the second limiting member, and the wall of the first insertion hole has threads to form the threaded hole; or, The fastening hole communicates with the first insertion hole, and the second limiting member has a threaded hole. The fastener passes through the fastening hole and the first insertion hole in sequence, and is threadedly connected to the second limiting member through the threaded hole.

4. A child car seat, characterized in that, include: The seat body includes a seating surface for a child to sit on; The two armrest devices according to any one of claims 1 to 3, wherein the two armrest devices are connected to the seat body and respectively connected to the left and right sides of the seating surface.

5. The child seat according to claim 4, characterized in that, The seat body includes a mounting part, which has a second insertion hole. The first connecting part is inserted into the second insertion hole and fits tightly with the inner wall of the second insertion hole.

6. The child seat according to claim 5, characterized in that, The seat body also includes a plug-in part, which is located in the second plug-in hole and spaced apart from the inner wall of the second plug-in hole to form a circumferential plug-in groove. The first connecting part is plugged into the plug-in groove. The end of the first connecting part opposite to the second connecting part also has a third plug-in hole. The plug-in part is plugged into the third plug-in hole and fits tightly with the inner wall of the third plug-in hole.

7. The child seat according to claim 6, characterized in that, The direction in which the support member is inserted into the second insertion hole is defined as the first direction; The seat body also includes a locking member, which includes a first elastic part and a first snap-fit ​​part. One end of the first elastic part is connected to the insertion part, and the first snap-fit ​​part is connected to the other end of the first elastic part and protrudes into the insertion groove along a second direction. The second direction is perpendicular to the first direction. The side of the first snap-fit ​​part facing away from the first direction has a first guide surface. Along the first direction, the distance between the first guide surface and the inner wall of the second insertion hole gradually decreases. The first connecting part also has a first slot communicating with the third insertion hole. The first slot is recessed along the second direction, and the first engaging part engages in the first slot.

8. The child seat according to claim 7, characterized in that, The support member further includes a retaining portion, which is disposed around the side of the first connecting portion and protrudes from the first connecting portion. The retaining portion abuts against the end face of the mounting portion on the side opposite to the first direction.

9. The child seat according to claim 8, characterized in that, The first latching portion has a first limiting surface facing along the first direction, and the inner wall of the first slot includes a second limiting surface facing away from the first direction. When the abutting portion abuts against the mounting portion, the first limiting surface abuts against the second limiting surface.

10. The child seat according to claim 4, characterized in that, The seat body has a fourth insertion hole, and the child seat also includes a first storage component, which includes a first storage part and a third connecting part. The third connecting part is connected to the first storage part and can be inserted into the fourth insertion hole in a third direction. The inner wall of the fourth insertion hole includes a third limiting surface facing in the third direction. The third connecting part has a fourth limiting surface, and the fourth limiting surface abuts against the third limiting surface.

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