Child safety seat

Abstract

This utility model specifically relates to a child safety seat, which includes a body assembly comprising a main body and an outer shell. The outer shell includes a rear cover and a bottom cover. The rear cover is disposed on the main body and located at the rear of the main body. A first limiting edge and a second limiting edge are provided at the bottom end of the rear cover, forming a limiting groove between the first and second limiting edges. The bottom cover is disposed on the main body and connected to the rear cover. A third limiting edge and a fourth limiting edge are provided at the end of the bottom cover facing the rear cover. The third limiting edge is adapted to be inserted into the limiting groove, and a slot for accommodating the first limiting edge is formed between the third and fourth limiting edges. In this child safety seat, after the rear cover is installed, the third limiting edge is inserted into the limiting groove, and the first limiting edge is inserted into the slot. This effectively limits and fixes the rear cover, preventing it from detaching during drop tests and helping to solve the problem of existing child safety seats where the rear cover easily detaches due to impact.

Description

Technical Field

[0001] This utility model relates to the field of child safety products technology, specifically to a child safety seat. Background Technology

[0002] Child car seats are designed specifically for children of different ages, installed in cars, and effectively improve children's safety while traveling. In the event of a collision or sudden deceleration, they reduce the impact force on children and restrict their body movement, thus minimizing injury and ensuring their safety while traveling.

[0003] However, existing child safety seats are mostly assembled using snap-fit ​​or clip-on connections. But when a child safety seat is subjected to an impact or drop test, child safety seats using this connection method are prone to breakage or separation. As a result, the back cover of the child safety seat may fall off, which will affect the overall structure of the seat and reduce its safety. Utility Model Content

[0004] The purpose of this invention is to at least solve the problem that the rear cover of existing child safety seats is prone to detaching due to impact. This purpose is achieved through the following technical solution: The first aspect of this utility model discloses a child safety seat, including a body assembly, the body assembly comprising a main body and an outer shell, the outer shell comprising: The rear cover is disposed on the main body and located at the rear side of the main body. The bottom end of the rear cover is provided with a first limiting edge and a second limiting edge, and a limiting groove is formed between the first limiting edge and the second limiting edge. A bottom cover is disposed on the main body and connected to the rear cover. The bottom cover has a third limiting edge and a fourth limiting edge at one end facing the rear cover. The third limiting edge is adapted to be inserted into the limiting groove. A slot for accommodating the first limiting edge is formed between the third limiting edge and the fourth limiting edge.

[0005] The child safety seat of this utility model features a first and second limiting edge on the bottom edge of the rear cover, forming a limiting groove between them. A third and fourth limiting edge, along with a slot formed by the third and fourth limiting edges, are also provided on the bottom cover. When the rear cover is installed, the third limiting edge is inserted into the limiting groove, and the first limiting edge is inserted into the slot. This design effectively limits and secures the rear cover, preventing it from detaching during drop tests. This helps solve the problem of existing child safety seats' rear covers easily detaching due to impact, thereby improving the safety of child safety seats.

[0006] In addition, the child safety seat according to this utility model may also have the following additional technical features: In some embodiments of this utility model, the first limiting edge and the second limiting edge are arranged in parallel; And / or, a first included angle is formed between the third limiting edge and the fourth limiting edge, and the first included angle is an acute angle.

[0007] In some embodiments of this utility model, there are two second limiting edges, and along the first direction, the two second limiting edges are located on opposite sides of the first limiting edge.

[0008] In some embodiments of this utility model, the second limiting edge is located on the side of the first limiting edge away from the main body, and a reinforcing rib connected to the second limiting edge is provided on the side of the back cover away from the main body.

[0009] In some embodiments of this utility model, the outer shell further includes two side covers, which are respectively disposed on opposite sides of the main body along a first direction. The top end of each side cover is connected to the main body and the rear cover, and a reinforcing structure is provided on the end face of the top end.

[0010] In some embodiments of this utility model, the reinforcing structure includes a first reinforcing region and a second reinforcing region arranged sequentially along a second direction, wherein the second direction is perpendicular to the first direction; The first reinforcing region is provided with a plurality of first reinforcing ribs extending along the second direction, and the second reinforcing region is provided with a plurality of second reinforcing ribs extending along the first direction.

[0011] In some embodiments of this utility model, the area of ​​the first reinforcing region is S1, and the area of ​​the second reinforcing region is S2, wherein S1 / S2 = 0.15-0.35; And / or, the first reinforcing rib is configured as a fan-shaped or fan-like structure, and the first reinforcing rib has a maximum height H1 between it and the side cover, wherein H1 = 8mm-11mm; And / or, along the first direction, the first reinforcing rib has a first thickness d1, d1 = 0.8 mm - 1.2 mm; And / or, the end of the second reinforcing rib facing away from the side cover is configured as a second arc-shaped surface, and the second arc-shaped surface and the side cover have a maximum height H2, wherein H2 = 2.5mm-4mm; And / or, along the second direction, the second reinforcing rib has a second thickness d2, d2 = 0.8 mm - 1.2 mm.

[0012] In some embodiments of this utility model, the outer shell further includes two side covers, which are respectively disposed on opposite sides of the main body along a first direction. The side covers are provided with clamping assemblies for clamping vehicle seat belts.

[0013] In some embodiments of this utility model, the clamp assembly includes: A clamping device seat, the clamping device seat having a receiving cavity, and a clamping surface provided on one side of the receiving cavity; A clamping arm is rotatably disposed within the receiving cavity, and one end of the clamping arm is provided with clamping teeth that cooperate with the clamping surface.

[0014] In some embodiments of this utility model, the clamping teeth are provided in multiple ways, and the multiple clamping teeth are spaced apart along the extension direction of the clamp arm; And / or, the clamping teeth have a tooth height H3, wherein H3 = 3mm-5mm; And / or, the clamp assembly further includes: A pivot shaft is disposed on the clamp seat and is at least partially housed in the receiving cavity, and the clamp arm is sleeved on the pivot shaft; An elastic element is provided, wherein the elastic element is configured as a torsion spring, the torsion coil of the torsion spring is sleeved on the pivot shaft, the first support portion of the torsion spring abuts against the clamp arm, and the second support portion of the torsion spring abuts against the clamp seat. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of a child safety seat according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the structure of a child safety seat from another perspective. Figure 3 for Figure 1 The diagram shows a cross-sectional view of a child safety seat on the first section. Figure 4 for Figure 3 A magnified schematic diagram of a portion of the structure of A shown; Figure 5 for Figure 1 The diagram shows a cross-sectional view of the child safety seat on the second section. Figure 6 for Figure 5 A magnified schematic diagram of a portion of the structure of B shown in the figure; Figure 7 for Figure 2 The diagram shows the structure of the back cover; Figure 8 for Figure 7 A magnified schematic diagram of a portion of the structure of C shown; Figure 9 for Figure 1 The diagram shown is a structural illustration of a child safety seat from a third-person perspective. Figure 10 for Figure 10 A magnified schematic diagram of a portion of the upper cover structure is shown. Figure 11 for Figure 10 The diagram shows a cross-sectional view of the upper cover in the DD direction; Figure 12 for Figure 11 A magnified schematic diagram of a local structure of F is shown; Figure 13 for Figure 10 The diagram shows a cross-sectional view of the upper cover along the E-E direction; Figure 14 for Figure 13 A magnified schematic diagram of a local structure of G is shown; Figure 15 for Figure 2 The diagram shows the structure of the clamp assembly. Figure 16 for Figure 15 The diagram shows the structure of the clamp assembly in another state; Figure 17 for Figure 15 The diagram shows the structure of the clamp holder. Figure 18 for Figure 15 The diagram shows the structure of the clamp arm; Figure 19 for Figure 15 The diagram shows a cross-sectional view of the clamp assembly at the third section.

[0016] The markings in the attached diagram are as follows: 1000. Child safety seats; 100. Base assembly; 200. Main body assembly; 300. Headrest assembly; 10. Main body; 20. Outer shell; 30. Buffer body; 1. Back cover; 11. First limiting edge; 12. Second limiting edge; 13. Limiting groove; 2. Bottom cover; 21. Third limiting edge; 22. Fourth limiting edge; 23. Slot; 3. Side cover; 31. Upper side cover; 311. Fixing cavity; 312. First part; 313. Second part; 32. Lower side cover; 4. Strengthen the structure; 41. First reinforced area; 411. First reinforced rib; 412. Third reinforced rib; 42. Second reinforced area; 421. Second reinforced rib; 422. Fourth reinforced rib; 5. Clamp assembly; 51. Clamping seat; 511. Receiving cavity; 512. Clamping surface; 513. Protrusion; 514. First positioning groove; 52. Clamping arm; 521. Clamping teeth; 522. Operating part; 523. Mounting slot; 524. Second positioning slot; 525. Mounting cavity; 53. Pivot axis; a) First direction; b) Second direction; c) Third direction. Detailed Implementation

[0017] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0018] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0019] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0020] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0021] The 1000 car child safety seat is designed specifically for children of different ages and is installed in a car to effectively improve children's safety while traveling. In the event of a collision or sudden deceleration, it reduces the impact force on children and restricts their body movement, thereby minimizing injury and ensuring children's safety while traveling.

[0022] However, the existing child safety seat shells are mostly assembled using snap-fit ​​or clip-on connections. But when the child safety seat 1000 is subjected to impact or drop test, the child safety seat 1000 using this connection method is prone to breakage or separation. As a result, the rear cover 1 of the child safety seat 1000 will fall off, which will affect the overall structure of the seat and reduce the safety of the child safety seat 1000.

[0023] To solve the above problems, such as Figures 1-19As shown, this utility model proposes a child safety seat 1000. In terms of overall design, the child safety seat 1000 includes a body assembly 200, which includes a main body 10 and an outer shell 20. The outer shell 20 includes a rear cover 1 and a bottom cover 2. The rear cover 1 is disposed on the main body 10 and located at the rear side of the main body 10. A first limiting edge 11 and a second limiting edge 12 are provided at one bottom end of the rear cover 1, and a limiting groove 13 is formed between the first limiting edge 11 and the second limiting edge 12. The bottom cover 2 is disposed on the main body 10 and connected to the rear cover 1. A third limiting edge 21 and a fourth limiting edge 22 are provided at the end of the bottom cover 2 facing the rear cover 1. The third limiting edge 21 is adapted to be inserted into the limiting groove 13, and a slot 23 for accommodating the first limiting edge 11 is formed between the third limiting edge 21 and the fourth limiting edge 22.

[0024] Specifically, by setting a first limiting edge 11 and a second limiting edge 12 at the bottom of the rear cover 1, a limiting groove 13 is formed between the first limiting edge 11 and the second limiting edge 12, and a third limiting edge 21 and a fourth limiting edge 22, as well as a slot 23 formed by the third limiting edge 21 and the fourth limiting edge 22, the rear cover 1 is fixed in place after the rear cover 1 is installed, the third limiting edge 21 is inserted into the limiting groove 13, and the first limiting edge 11 is inserted into the slot 23. This can limit and fix the rear cover 1 to prevent the rear cover 1 from falling off during drop tests. This helps to solve the problem that the rear cover 1 of the existing child safety seat 1000 is easy to fall off due to impact, thereby improving the safety of the child safety seat 1000.

[0025] It is necessary to understand that, such as Figures 1 to 3 As shown, in this embodiment, the child safety seat 1000 includes a base assembly 100, a body assembly 200, and a headrest assembly 300. The base assembly 100 is placed on a car seat or the ground. The body assembly 200 is positioned above the base assembly 100 for a child to sit on, and the headrest assembly 300 is positioned on the body assembly 200 to contact the child's head for head protection. Specifically, the body assembly 200 includes a main body 10, an outer shell 20 mounted on the main body 10, and a buffer body 30 mounted on the main body 10. The main body 10 supports the child's buttocks and provides support for the child's back. Optionally, the outer shell 20 and the buffer body 30 cooperate to enclose the main body 10, with the buffer body 30 located on the left and right sides of the child for holding and protecting the child.

[0026] like Figure 2 and Figure 3As shown, the outer casing 20 includes a rear cover 1, a bottom cover 2, and a side cover 3. The rear cover 1, bottom cover 2, and side cover 3 are all located on the side of the main body 10 away from the child. The rear cover 1 has a plate-like structure and is mounted on the main body 10 along the second direction b. In this embodiment, the second direction b is the front-rear direction of the child safety seat 1000; correspondingly, the first direction a is the left-right direction of the child safety seat 1000, and the third direction c is the vertical direction.

[0027] Still Figure 2 and Figure 3 As shown, the bottom cover 2 is mounted on the main body 10 and connected to the rear cover 1. Optionally, the main body 10 is connected to the base assembly 100 via the bottom cover 2. In this embodiment, along the third direction c, the end of the rear cover 1 facing the bottom cover 2 (top) is provided with a first limiting edge 11 and a second limiting edge 12, forming a limiting groove 13 between the first limiting edge 11 and the second limiting edge 12. Simultaneously, the end of the bottom cover 2 facing the rear cover 1 is provided with a third limiting edge 21 and a fourth limiting edge 22. The third limiting edge 21 is adapted to be inserted into the limiting groove 13, and a slot 23 for accommodating the first limiting edge 11 is formed between the third limiting edge 21 and the fourth limiting edge 22. With this configuration, when the rear cover 1 is installed in place, the first limiting edge 11 is inserted into the slot 23, and the third limiting edge 21 is inserted into the limiting groove 13, thus limiting and fixing the rear cover 1 and effectively preventing the rear cover 1 from falling off during drop tests.

[0028] It needs to be further understood that the first limiting edge 11 and the second limiting edge 12 are set in parallel. For example... Figure 3 and Figure 4 As shown, along the third direction c, the end of the rear cover 1 facing the bottom cover 2 is provided with a first bent segment and a second bent segment connected in sequence. The first bent segment and the second bent segment are not shown in the figure. The end of the first bent segment opposite to the rear cover 1 is provided with a first limiting edge 11, and the end of the second bent segment opposite to the first bent segment is provided with a second limiting edge 12. Optionally, the lengths of the first limiting edge 11 and the second limiting edge 12 along the third direction c can be the same or different. In this embodiment, both the first limiting edge 11 and the second limiting edge 12 extend along the third direction c, that is, the first limiting edge 11 and the second limiting edge 12 are arranged in parallel, and along the third direction c, the length of the first limiting edge 11 is less than the length of the second limiting edge 12, which helps to increase the contact area between the second limiting edge 12 and the third limiting edge 21, thereby improving the limiting effect of the second limiting edge 12 on the third limiting edge 21.

[0029] Still Figure 3 and Figure 4As shown, a first included angle is formed between the third limiting edge 21 and the fourth limiting edge 22, and the first included angle is an acute angle. In this embodiment, the bottom cover 2 is generally an arc-shaped plate structure. The third limiting edge 21 and the fourth limiting edge 22 are located at the end of the bottom cover 2 facing the rear cover 1 and form a slot 23. At this time, the first limiting edge 11 is adapted to be accommodated in the slot 23. Specifically, one end of the third limiting edge 21 is connected to one end of the bottom cover 2, and one end of the fourth limiting edge 22 is connected to one end of the bottom cover 2, so that the third limiting edge 21 and the fourth limiting edge 22 are connected and form a first included angle, wherein the first included angle is an acute angle. Optionally, the extension direction and length of the third limiting edge 21 and the fourth limiting edge 22 are different. The third limiting edge 21 is inserted into the limiting groove 13, and the side of the fourth limiting edge 22 facing the third limiting edge 21 abuts against the second limiting edge 12 and abuts against part of the first bent section. This setting helps to improve the connection effect between the back cover 1 and the bottom cover 2, thereby enhancing the connection strength between the back cover 1 and the bottom cover 2, and helping to prevent the back cover 1 from falling off during drop tests.

[0030] Furthermore, there are two second limiting edges 12, and along the first direction a, the two second limiting edges 12 are located on opposite sides of the first limiting edge 11.

[0031] Specifically, by setting two second limiting edges 12 and spacing them along the first direction a, when a drop test is performed, the second limiting edge 12 and the first limiting edge 11 are positioned to form a buffer effect, thereby further improving the impact resistance of the back cover 1 and thus improving the safety of the child safety seat.

[0032] It is necessary to understand that, such as Figures 5 to 8 As shown, the back cover 1 has a plate-like structure. Along the third direction c, both the first limiting edge 1 and the second limiting edge 12 are located at the bottom end of the back cover 1. In this embodiment, there is one first limiting edge 11 and two second limiting edges 12. Along the first direction a, the two second limiting edges 12 are respectively located on opposite sides of the first limiting edge 11, that is, the first limiting edge 11 and the second limiting edge 12 are staggered. Optionally, along the first direction a, the length of the first limiting edge 11 is greater than the length of the second limiting edge 12, and the length of the first limiting edge 11 is greater than or equal to 1 / 2 of the width of the back cover 1.

[0033] It should be noted that, in addition to setting two second limiting edges 12 and one first limiting edge 11, multiple first limiting edges 11 and multiple second limiting edges 12 can also be set, and multiple first limiting edges 11 and multiple second limiting edges 12 can be set alternately, which also helps to improve the fit between the back cover 1 and the bottom cover 2, thereby improving the installation strength of the back cover 1.

[0034] What needs further understanding is, such as Figure 5 and Figure 6 As shown, along the second direction b, the second limiting edge 12 is located on the side of the first limiting edge 11 opposite to the main body 10. Simultaneously, a reinforcing rib connected to the second limiting edge 12 is provided on the side of the rear cover 1 opposite to the main body 10. In this embodiment, there are two reinforcing ribs, and the two reinforcing ribs are spaced apart along the first direction a. Optionally, the two reinforcing ribs are respectively provided at opposite ends of the second limiting edge 12 along the first direction a. This arrangement helps to enhance the structural strength of the second limiting edge 12, thereby improving the fit between the second limiting edge 12 and the first limiting edge 11.

[0035] like Figure 1 , Figure 2 and Figure 9 As shown, there are two side covers 3, which are respectively disposed on opposite sides of the main body 10 along the first direction a. The side covers 3 can be connected to the rear cover 1 and the bottom cover 2 to form the outer shell 20. Specifically, the side cover 3 includes an upper side cover 31 and a lower side cover 32. The upper side cover 31 has a first end that is connected to both the main body 10 and the rear cover 1, and a second end that is connected to the lower side cover 32. In this case, the first end is the top of the side cover 3. In this embodiment, a reinforcing structure 4 is provided on the side of the first end facing away from the bottom cover 2, that is, a reinforcing structure 4 is provided on the end face of the top of the side cover 3. The provision of the reinforcing structure 4 can effectively improve the structural strength of the first end, thereby improving the connection effect with the main body 10 and the rear cover 1, and helping to further improve the safety of the side cover 3.

[0036] Furthermore, the reinforcing structure 4 includes a first reinforcing region 41 and a second reinforcing region 42 arranged sequentially along the second direction b. The first reinforcing region 41 is provided with a plurality of first reinforcing ribs 411 extending along the second direction b, and the second reinforcing region 42 is provided with a plurality of second reinforcing ribs 421 extending along the first direction a.

[0037] Specifically, by setting the reinforcing structure 4 as two reinforcing regions, and each reinforcing region being provided with a first reinforcing rib 411 and a second reinforcing rib 421 extending in different directions, it helps to further improve the structural strength of the first end, thereby improving the connection effect of the outer shell 20.

[0038] It should be understood that, in this embodiment, along the second direction b, and from the rear cover 1 towards the main body 10, the reinforcing structure 4 is configured as a first reinforcing region 41 and a second reinforcing region 42 arranged sequentially. The first reinforcing region 41 includes a plurality of first reinforcing ribs 411, which are arranged at intervals along the first direction a. Simultaneously, the second reinforcing region 42 includes a plurality of second reinforcing ribs 421, which are arranged at intervals along the second direction b. The second reinforcing ribs 421 located on one side of the second reinforcing region 42 are connected to the plurality of first reinforcing ribs 411.

[0039] like Figure 10 As shown, in this embodiment, the first reinforcing region 41 further includes a third reinforcing rib 412. The extension direction of the third reinforcing rib 412 is different from the structure of the first reinforcing rib 411 and the second reinforcing rib 421. Specifically, the third reinforcing rib 412 is disposed on the second reinforcing rib 421. Optionally, the third reinforcing rib 412 has a plate-like structure and is disposed parallel to the top surface of the first end. The provision of the third reinforcing rib 412 enriches the structural style of the first reinforcing region 41, thereby helping to improve the structural strength of the first reinforcing region 41. At the same time, the second reinforcing region 42 also includes a fourth reinforcing rib 422. The fourth reinforcing rib 422 extends along the second direction b and is connected to all the second reinforcing ribs 421. The provision of the fourth reinforcing rib 422 helps to improve the structural strength of the second reinforcing region 42, thereby improving the overall structural strength of the reinforcing structure 4.

[0040] It should be further understood that, in this embodiment, the area of ​​the first reinforcing region 41 is S1, and the area of ​​the second reinforcing region 42 is S2, where S1 / S2 = 0.15-0.35. By defining the areas of the first reinforcing region 41 and the second reinforcing region 42, the stress-bearing effect of the reinforcing structure 4 is improved, thereby increasing the structural strength of the reinforcing structure 4. Of course, in addition to the above proportions, adjustments can be made according to actual needs, and this application does not impose any restrictions on this.

[0041] like Figure 11 and Figure 12As shown, the first reinforcing rib 411 is configured as a fan-shaped or fan-like structure, and along the third direction c, the first reinforcing rib 411 has a maximum height H1 with the side cover 3, where H1 = 8mm-11mm. In this embodiment, the top surface of the upper side cover 31 includes a first part 312 and a second part 313 arranged in stages. The first part 312 is provided with a first reinforcing region 41 of the reinforcing structure 4, and the second part 313 is provided with a second reinforcing region 42 of the reinforcing structure 4. At this time, the first reinforcing rib 411 is a fan-like structure, and along the third direction c, the side of the first reinforcing rib 411 away from the side cover 3 has a maximum height H1 with the side cover 3, where H1 = 8mm-11mm. Optionally, H1 is 10mm. Meanwhile, as Figure 10 As shown, along the first direction a, the first reinforcing rib 411 has a first thickness d1, where d1 = 0.8 mm - 1.2 mm. Optionally, d1 is 1 mm.

[0042] like Figure 13 and Figure 14 As shown, the end of the second reinforcing rib 421 facing away from the side cover 3 is configured as a second arc-shaped surface, and the second arc-shaped surface and the side cover 3 have a maximum height H2, where H2 = 2.5mm-4mm. Simultaneously, along the second direction b, the second reinforcing rib 421 has a second thickness d2, where d2 = 0.8mm-1.2mm. By limiting the dimensions of the first reinforcing rib 411 and the second reinforcing rib 421, the manufacturing cost of the first reinforcing rib 411 and the second reinforcing rib 421 is reduced, while ensuring the structural strength of the reinforcing structure 4.

[0043] like Figure 2 As shown, a fixing cavity 311 is formed on the side of the upper cover 31 opposite to the main body 10. A clamp assembly 5 is disposed within the fixing cavity 311. The clamp assembly 5 is used to clamp the vehicle seat belt to improve the safety of the child safety seat 1000. The structure is simple and easy to install. Specifically, the clamp assembly 5 includes a clamp base 51 and a clamp arm 52. The clamp base 51 is connected to the upper cover 31, and the connection method includes, but is not limited to, snap-fit, screw-fit, and buckle connection, among others. In this embodiment, the clamp base 51 is snapped into the upper cover 31 and housed within the fixing cavity 311.

[0044] Furthermore, the clamping base 51 has a receiving cavity 511, and a clamping surface 512 is provided on one side of the receiving cavity 511. Meanwhile, the clamping arm 52 is rotatably disposed in the receiving cavity 511, and one end of the clamping arm 52 is provided with a clamping tooth 521 that cooperates with the clamping surface 512.

[0045] Specifically, by setting up a clamp arm 52 and a clamp seat 51, and utilizing the clamping teeth 521 and the clamping surface 512 to clamp and fix the vehicle seat belt, the fixing effect of the vehicle seat belt is improved. At the same time, the clamp arm 52 is rotatably mounted on the clamp seat 51, which helps to improve the convenience of clamping or releasing the vehicle seat belt.

[0046] like Figures 15 to 19 As shown, in this embodiment, the clamp assembly 5 includes a clamp seat 51, a clamp arm 52, and a pivot shaft 53. The clamp seat 51 is fixedly mounted on the upper cover 31. The clamp seat 51 has a receiving cavity 511. Along the second direction b, the pivot shaft 53 is disposed at one end of the clamp seat 51 and passes through the receiving cavity 511, that is, at least a portion of the pivot shaft 53 is accommodated in the receiving cavity 511. The clamp arm 52 is sleeved on the pivot shaft 53 and accommodated in the receiving cavity 511 to realize the rotation of the clamp arm 52 on the receiving cavity 511. Along the second direction b, a clamping surface 512 is provided on the side of the receiving cavity 511 opposite to the pivot shaft 53. At the same time, a clamping tooth 521 that cooperates with the clamping surface 512 is provided at one end of the clamp arm 52.

[0047] It should be further understood that, along the extending direction of the clamp arm 52 (the axial direction of the pivot shaft 53), the clamp arm 52 has an operating portion 522 protruding from the receiving cavity 511, and the operating portion 522 is located at the end of the clamp arm 52 with clamping teeth 521. In this embodiment, multiple clamping teeth 521 are provided, and the multiple clamping teeth 521 are spaced apart along the extending direction of the clamp arm 52. The arrangement of multiple clamping teeth 521 helps to further improve the clamping effect of the clamping teeth 521 on the vehicle seat belt. Optionally, the clamping teeth 521 have a tooth height H3, where H3 = 3mm-5mm. Optionally, H3 is 3.5mm.

[0048] It should be pointed out that, such as Figure 17 As shown, a plurality of protrusions 513 are also provided on the clamping surface 512. The protrusions 513 are spaced apart along the extension direction of the clamp arm 52 (the axial direction of the pivot shaft 53) and are accommodated between two adjacent clamping teeth 521. This arrangement helps to further improve the clamping effect of the clamping teeth 521 on the vehicle seat belt.

[0049] Furthermore, the clamp assembly 5 also includes an elastic element, which is a torsion spring. The torsion spring's coil is sleeved on the pivot shaft 53. The first support portion of the torsion spring abuts against the clamp arm 52, and the second support portion of the torsion spring abuts against the clamp seat 51.

[0050] Specifically, by providing an elastic element on the pivot shaft 53, it can cooperate with the clamp arm 52 and the clamp seat 51 to improve the ease of operation of the clamp assembly 5 and further enhance the clamping effect of the clamp assembly 5. It should be understood that in this embodiment, the elastic element is a torsion spring, which is not shown in the figure. Along the extending direction of the clamp arm 52, a mounting cavity 525 and a mounting groove 523 are sequentially provided on the clamp arm 52, and the aforementioned pivot shaft 53 passes through the mounting cavity 525 and the mounting groove 523 sequentially. Simultaneously, a second positioning groove 524 communicating with the mounting groove 523 is provided on the clamp arm 52, and a first positioning groove 514 communicating with the receiving cavity 511 is provided on the clamp seat 51. The torsion coil portion of the torsion spring is sleeved on the pivot shaft 53 and accommodated in the mounting groove 523. The first support portion of the torsion spring is located inside the first positioning groove 514 and abuts against the clamp arm 52, while the second support portion of the torsion spring is located at the temporal portion of the second positioning groove 524 and abuts against the clamp seat 51, thereby improving the ease of installation of the elastic element and thus improving the ease of operation of the clamp assembly 5.

[0051] The child safety seat 1000 of this embodiment has a first limiting edge 11 and a second limiting edge 12 on one end (lower edge) of the rear cover 1, and a third limiting edge 21 and a fourth limiting edge 22 on the bottom cover 2. When the rear cover 1 is installed, the third limiting edge 21 is inserted into the limiting groove 13 between the first limiting edge 11 and the second limiting edge 12, and the first limiting edge 11 is inserted into the slot 23 between the third limiting edge 21 and the fourth limiting edge 22. This can limit and fix the rear cover 1 to prevent it from falling off during drop tests. This helps to solve the problem that the rear cover 1 of the existing child safety seat 1000 is prone to falling off due to impact. At the same time, the structural strength of the child safety seat 1000 is improved by providing a reinforcing structure 4 on the top of the side cover 3, and the clamping group on the side cover 3 helps to improve the fixing effect of the vehicle seat belt, thereby improving the safety of the child safety seat 1000.

[0052] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A child safety seat, characterized in that, The assembly includes a body group, which comprises a main body and an outer shell, the outer shell comprising: The rear cover is disposed on the main body and located at the rear side of the main body. The bottom end of the rear cover is provided with a first limiting edge and a second limiting edge, and a limiting groove is formed between the first limiting edge and the second limiting edge. A bottom cover is disposed on the main body and connected to the rear cover. The bottom cover has a third limiting edge and a fourth limiting edge at one end facing the rear cover. The third limiting edge is adapted to be inserted into the limiting groove. A slot for accommodating the first limiting edge is formed between the third limiting edge and the fourth limiting edge.

2. The child safety seat of claim 1, wherein, The first limiting edge and the second limiting edge are arranged in parallel; And / or, a first included angle is formed between the third limiting edge and the fourth limiting edge, and the first included angle is an acute angle.

3. The child safety seat of claim 1, wherein, There are two second limiting edges, and along the first direction, the two second limiting edges are located on opposite sides of the first limiting edge.

4. The child safety seat of claim 3, wherein, The second limiting edge is located on the side of the first limiting edge away from the main body, and a reinforcing rib connected to the second limiting edge is provided on the side of the back cover away from the main body.

5. A child safety seat according to any one of claims 1-4, characterized in that, The outer casing also includes two side covers, which are respectively disposed on opposite sides of the main body along a first direction. The top end of each side cover is connected to the main body and the rear cover, and a reinforcing structure is provided on the end face of the top end.

6. The child safety seat according to claim 5, characterized in that, The reinforcing structure includes a first reinforcing region and a second reinforcing region arranged sequentially along a second direction, wherein the second direction is perpendicular to the first direction. The first reinforcing region is provided with a plurality of first reinforcing ribs extending along the second direction, and the second reinforcing region is provided with a plurality of second reinforcing ribs extending along the first direction.

7. The child safety seat of claim 6, wherein, The area of ​​the first reinforced region is S1, and the area of ​​the second reinforced region is S2, where S1 / S2 = 0.15 - 0.35; And / or, the first reinforcing rib is configured as a fan-shaped or fan-like structure, and the first reinforcing rib has a maximum height H1 between itself and the side cover, wherein H1 = 8mm-11mm; And / or, along the first direction, the first reinforcing rib has a first thickness d1, d1 = 0.8 mm - 1.2 mm; And / or, the end of the second reinforcing rib facing away from the side cover is configured as a second arc-shaped surface, and the second arc-shaped surface and the side cover have a maximum height H2, wherein H2 = 2.5mm-4mm; And / or, along the second direction, the second reinforcing rib has a second thickness d2, d2 = 0.8 mm - 1.2 mm.

8. The child safety seat of any one of claims 1-4, wherein, The outer casing also includes two side covers, which are respectively disposed on opposite sides of the main body along a first direction. Each side cover is provided with a clamp assembly for clamping a vehicle seat belt.

9. The child safety seat of claim 8, wherein, The clamp assembly includes: A clamping device seat, the clamping device seat having a receiving cavity, and a clamping surface provided on one side of the receiving cavity; A clamping arm is rotatably disposed within the receiving cavity, and one end of the clamping arm is provided with clamping teeth that cooperate with the clamping surface.

10. The child safety seat of claim 9, wherein, The clamping teeth are provided in multiple ways, and the multiple clamping teeth are spaced apart along the extension direction of the clamp arm; And / or, the clamping teeth have a tooth height H3, wherein H3 = 3mm-5mm; And / or, the clamp assembly further includes: A pivot shaft is disposed on the clamp seat and is at least partially housed in the receiving cavity, and the clamp arm is sleeved on the pivot shaft; An elastic element is provided, wherein the elastic element is configured as a torsion spring, the torsion coil of the torsion spring is sleeved on the pivot shaft, the first support portion of the torsion spring abuts against the clamp arm, and the second support portion of the torsion spring abuts against the clamp seat.

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