Base assembly of a child safety seat and child safety seat

Abstract

The utility model discloses a base assembly and child safety seat of child safety seat, and base assembly includes: base is equipped with along the extension of the sliding slot of before and after, ISOFIX anchoring device includes sliding element and locking element, and sliding element is slidably matched in the sliding slot between the storage position and the extended position along before and after, and a plurality of locking parts are equipped with on the sliding element and are arranged along before and after interval, and locking element is movably arranged on the base, is suitable for with any locking part locking cooperation, to make the relative fixation of sliding element and base, and first stop part is equipped on the base, and second stop part is equipped on the sliding element, and when the extended position of sliding element, first stop part and second stop part limit cooperation. According to the base assembly of the utility model, can promote the connection intensity and rigidity between sliding element and base when the extended position, reduce the risk of stress concentration, reduce the relative position deviation of child safety seat when the impact, promote the safety and reliability of child safety seat.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to a base assembly for a child safety seat and a child safety seat. Background Technology

[0002] As a core piece of equipment ensuring the safety of minors while traveling in a car, the reliability of the child safety seat's restraint system directly determines its protective effect in a collision. The ISOFIX (International Standards Organization FIX) restraint system, because it does not rely on the vehicle's seatbelt and connects directly to the seat via a dedicated interface between the seat and the vehicle body, significantly reduces installation errors and has become the mainstream global standard for child safety seat restraint.

[0003] In related technologies, when the ISOFIX restraint system is at its maximum extension position, stress concentration is likely to occur during impact tests, leading to problems such as excessive seat displacement and delayed response of the restraint system. This directly results in decreased stability of test data and may even fail to meet safety standards. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a base assembly for a child safety seat. This base assembly can improve the connection strength and rigidity between the sliding member and the base when the member is in the extended position, reduce the relative positional displacement of the child safety seat during a collision, and improve the safety and reliability of the child safety seat.

[0005] This utility model also proposes a child safety seat having the above-mentioned base assembly.

[0006] According to a first aspect of the present invention, a base assembly for a child safety seat includes: a base having a groove extending in a front-rear direction; and an ISOFIX anchoring device including a sliding member and a locking member. The sliding member is slidably engaged in the groove between a retracted position and an extended position in a front-rear direction. The sliding member has a plurality of locking portions spaced apart in a front-rear direction. The locking member is movably disposed on the base and is adapted to lock into any one of the locking portions to fix the sliding member relative to the base. The base has a first stop portion, and the sliding member has a second stop portion. When the sliding member is in the extended position, the first stop portion and the second stop portion engage in a limiting engagement.

[0007] According to the base assembly of the child safety seat of this utility model, by setting a first stop on the base and a second stop on the sliding member, and by making the first stop and the second stop cooperate in a limiting manner when the sliding member is in the extended position, the connection strength and rigidity between the sliding member and the base when the sliding member is in the extended position can be improved, the risk of stress concentration can be reduced, the relative positional displacement of the child safety seat during a collision can be reduced, and the safety and reliability of the child safety seat can be improved.

[0008] In some embodiments, at least one of the locking portions is arranged on the front side of the second stop portion.

[0009] In some embodiments, both the first stop and the second stop are protrusions and are adapted to abut in the front-back direction.

[0010] In some embodiments, there are multiple second stops, which are respectively arranged on the left and right sides and / or the upper and lower sides of the slider. There are multiple first stops, which correspond one-to-one with the multiple second stops. And / or, the surface of the slider facing the side wall of the slide groove is provided with a groove, which extends in the front-back direction, and the second stops are disposed in the groove.

[0011] In some embodiments, the base includes: a base body defining a slide groove that is open at both the top and the rear end, and a fixing part provided on the base body, the fixing part being respectively arranged on both sides of the slide groove in the left-right direction; a fixing frame arranged on the upper side of the slide groove and having both ends connected to the fixing parts located on both sides of the slide groove, the sliding member being disposed between the fixing frame and the base body and slidingly engaging with the fixing frame, and the first stop being disposed on the fixing frame and / or the base body.

[0012] In some embodiments, the fixing frame includes: a top plate, side plates, and a connecting edge. The top plate extends in a left-right direction. There are two side plates, which are respectively connected to the left and right sides of the top plate and extend downward toward the base body. The connecting edge is connected to the lower end of the side plate and extends in a left-right direction away from the slide groove. The connecting edge is detachably connected to the fixing part. The first stop part is provided on the top plate and / or the side plate.

[0013] In some embodiments, the first stop portion is formed by a portion of the side plate protruding toward the other side plate; and / or, the first stop portion extends in a front-rear direction, wherein the front and rear end edges of the first stop portion do not extend beyond the front and rear side edges of the side plate in the front-rear direction.

[0014] In some embodiments, the base assembly of the child safety seat further includes a storage cup disposed on the base, the storage cup defining a storage cavity, the top of the storage cavity being open to form an opening, the diameter of the opening being greater than or equal to 60 mm.

[0015] In some embodiments, the base is provided with an insertion hole, the inner wall of the insertion hole is provided with a first engaging portion, the cup includes a retaining arm, the retaining arm is provided with a second engaging portion, at least a portion of the retaining arm extends into the insertion hole, and the first engaging portion and the second engaging portion are engaged and connected, one of the first engaging portion and the second engaging portion is formed as a protrusion and the other is formed as a groove.

[0016] A child safety seat according to a second aspect of the present invention includes a base assembly of a child safety seat according to a first aspect of the present invention.

[0017] The child safety seat according to this utility model improves the overall performance of the child safety seat by providing the base assembly of the child safety seat described in the first aspect.

[0018] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a child safety seat according to an embodiment of the present invention from one angle; Figure 2 This is a structural schematic diagram of a child safety seat according to an embodiment of the present invention from another angle; Figure 3 This is a structural schematic diagram of the base assembly of a child safety seat according to an embodiment of the present utility model, wherein the sliding member is in the storage position and the interface rod is in the first position; Figure 4 This is a structural schematic diagram of the base assembly of a child safety seat according to an embodiment of the present utility model, wherein the sliding member is in the storage position and the interface rod is in the second position; Figure 5 yes Figure 4 A magnified view of point A, indicated by the center circle; Figure 6 This is a structural schematic diagram of the base assembly of a child safety seat according to an embodiment of the present utility model, wherein the slider is in the extended position and the interface rod is in the second position; Figure 7 yes Figure 6 A magnified view of point B, indicated by the center circle; Figure 8 yes Figure 6A structural schematic diagram of the base assembly of the child safety seat from another angle; Figure 9 yes Figure 8 A magnified view of point C, indicated by the center circle; Figure 10 yes Figure 9 The diagram shows the structure of the fixing frame. Figure 11 yes Figure 10 A schematic diagram of the fixture from another angle is shown; Figure 12 yes Figure 8 The diagram shows the structure of the base. Figure 13 yes Figure 12 A magnified view of point D, indicated by the center circle; Figure 14 This is a cross-sectional view of a child safety seat according to an embodiment of the present utility model; Figure 15 yes Figure 14 A magnified view of point E, indicated by the center circle; Figure 16 This is an exploded view of a child safety seat according to an embodiment of the present utility model; Figure 17 yes Figure 16 A schematic diagram of the structure of the cup shown at the first angle; Figure 18 yes Figure 16 A schematic diagram of the structure of the cup at the second angle shown; Figure 19 yes Figure 16 A schematic diagram of the structure of the cup shown from the third angle; Figure 20 yes Figure 16 The diagram shows the structure of the cup from the fourth angle.

[0020] Figure label: 1000. Child safety seats; 100. Base assembly; 10. Base; 101. First stop section; 11. Base body; 111. Slide groove; 112. Fixing part; 1121. First fixing hole; 113. Support rib; 114. Insertion hole; 115. First engaging part; 12. Fixing frame; 121. Top plate; 122. Side plate; 123. Connecting edge; 1231. Second fixing hole; 124. Reinforcing rib; 20. ISOFIX anchoring device; 21. Sliding component; 211. Connecting pipe; 212. Locking rod; 2121. Locking part; 2122. Second stop part; 2123. Groove; 22. Locking element; 23. Interface rod; 231. ISOFIX interface; 24. Horizontal rod; 25. Adjustment mechanism; 251. Operating components; 252. Transmission rod; 2521. Pivoting part; 2522. First rod segment; 2523. Second rod segment; 30. Storage cup; 301. Storage cavity; 302. Opening; 31. Clamping arm; 311. Horizontal section; 312. Clamping section; 313. Second clamping part; 32. Cup ring; 33. Side panel; 34. Base; 35. Reinforcing plate; 40. Top cover; 50. Seat plate; 60. Adjustable part; 70. Armrest; 200. Seat back; 300. Headrest assembly; 400. Side impact protection assembly. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] The following is for reference. Figures 1-20 The base assembly 100 of a child safety seat 1000 according to a first aspect embodiment of the present invention is described.

[0023] like Figure 1 As shown, the base assembly 100 of the child safety seat 1000 according to the first aspect of the present invention includes: a base 10 and an ISOFIX anchoring device 20.

[0024] Specifically, such as Figures 3-9 As shown, the base 10 has a groove 111 extending in the front-to-back direction; the ISOFIX anchoring device 20 includes a sliding member 21 and a locking member 22, the sliding member 21 being in the retracted position (e.g.) in the front-to-back direction. Figure 3 and Figure 4 The location of the slider 21 shown) and the extended position (e.g.) Figure 6The sliding member 21 (as shown in the diagram) is slidably fitted within the slide groove 111. The sliding member 21 has multiple locking parts 2121 arranged at intervals in the front-back direction. The locking member 22 is movably mounted on the base 10. The locking member 22 is adapted to lock with any one of the locking parts 2121 so that the sliding member 21 is relatively fixed to the base 10. The base 10 has a first stop part 101, and the sliding member 21 has a second stop part 2122. When the sliding member 21 is in the extended position, the first stop part 101 and the second stop part 2122 are in a limiting fit to restrict the sliding member 21 from sliding backward.

[0025] In some examples, there can be multiple grooves 111, which can be arranged at intervals in the left-right direction. There can also be multiple sliding members 21, each corresponding one-to-one with a groove 111. The number of locking parts 2121 on each sliding member 21 can be two, three, four, five, eight, ten, twelve, fifteen, or more. The number of locking parts 2121 corresponds to the number of extension positions of the ISOFIX anchoring device 20; for example, when there are five locking parts 2121, the ISOFIX anchoring device 20 has five extension positions. When the child safety seat 1000 is fixed to the vehicle, the user can select the appropriate extension position to secure the child safety seat 1000 according to actual needs. The ISOFIX anchoring device 20 has multiple extension positions, which can improve the versatility of the child safety seat 1000 and adapt it to more different vehicles. The locking element 22 is used to lock the sliding element 21, thereby locking the sliding element 21 in the current extension position, preventing the sliding element 21 from sliding, and ensuring the reliability of fixing the child safety seat 1000.

[0026] In some examples, the first stop 101 is a structure such as a limiting protrusion, a limiting groove, a limiting post, a limiting hole, or a limiting rib, and the second stop 2122 can be a structure such as a limiting protrusion, a limiting groove, a limiting post, a limiting hole, or a limiting rib that is adapted to the first stop 101.

[0027] In this embodiment, when the child safety seat 1000 does not need to be fixed to the vehicle body, the sliding member 21 can be in the retracted position, and the locking member 22 can lock and engage with the rearmost locking part 2121 among the multiple locking parts 2121. At this time, the ISOFIX interface 231 of the ISOFIX anchoring device 20 is not exposed, and the ISOFIX anchoring device 20 is in a retracted state. When it is necessary to fix the child safety seat 1000 to the vehicle body, the locking member 22 can be operated to move, so that the locking member 22 disengages from the locking part 2121. The sliding member 21 is operated to slide backward along the slide groove 111, so that the ISOFIX interface 231 can extend from the rear side of the child safety seat 1000. When the sliding member 21 slides to a suitable position, the locking member 22 can be operated to lock and engage with the locking part 2121 at the suitable position to lock the sliding member 21 in the current position.

[0028] When the ISOFIX interface 231 needs to be extended to its maximum distance, the slider 21 can be pulled back to its maximum distance, allowing it to slide to the extended position. At this time, the first stop 101 and the second stop 2122 engage to limit the slider 21 from sliding further backward. Simultaneously, the locking member 22 can be operated to engage with the corresponding locking member 2121 to fix the slider 21 in the extended position and prevent it from sliding back and forth.

[0029] In this embodiment, by setting a first stop 101 and a second stop 2122 to limit the sliding member 21 to the extended position, the sliding member 21 is restricted to the extended position to prevent it from sliding. Thus, when the sliding member 21 is at its maximum extended position, it can be locked and fixed by the locking member 22 and the locking part 2121, as well as by the two sets of structures: the first stop 101 and the second stop 2122. In this way, on the one hand, the first stop 101 and the second stop 2122 can increase the connection and fixing structure between the sliding member 21 and the base 10 within the limited support length range, enhancing the connection strength between the sliding member 21 and the base 10, dispersing stress, and reducing the risk of stress concentration between the sliding member 21 and the base 10.

[0030] On the other hand, since there is a certain assembly gap between the locking part 2121 and the locking member 22, the limiting cooperation of the first stop part 101 and the second stop part 2122 in this embodiment can reduce the assembly gap between the locking part 2121 and the locking member 22 or the cumulative gap between the components of the ISOFIX anchoring device 20, enhance the connection rigidity between the sliding member 21 and the base 10, reduce the relative positional displacement during the impact test of the child safety seat 1000, thereby improving the impact data of the head test and enhancing the safety of the child safety seat 1000.

[0031] According to an embodiment of the present invention, the base assembly 100 of the child safety seat 100, by providing a first stop 101 on the base 10 and a second stop 2122 on the slider 21, and by having the first stop 101 and the second stop 2122 engage in a limiting cooperation when the slider 21 is in the extended position, can improve the connection strength and rigidity between the slider 21 and the base 10 when in the extended position, reduce the risk of stress concentration, reduce the relative positional displacement of the child safety seat 1000 during an impact, and improve the safety and reliability of the child safety seat 1000.

[0032] In some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, at least one locking part 2121 is arranged on the front side of the second stop part 2122. That is, the second stop part 2122 can be arranged between a plurality of locking parts 2121, a portion of the plurality of locking parts 2121 can be located on the front side of the second stop part 2122, and another portion of the plurality of locking parts 2121 can be located on the rear side of the second stop part 2122.

[0033] It should be noted that the slider 21 or its locking lever 212 is typically injection molded. To improve versatility, the multiple locking portions 2121 on the slider 21 can usually meet the requirements of various numbers of telescopic positions. However, some customers do not require such a large number of telescopic positions. Based on this, in this embodiment, the second stop portion 2122 is arranged in front of at least one locking portion 2121. Only the position of the second stop portion 2122 on the mold needs to be changed, without changing the mold structure corresponding to the multiple locking portions 2121. This allows for the improvement of the mold for the slider 21 or its locking lever 212, with minimal modifications. As a result, the production efficiency of the slider 21 can be improved and costs reduced.

[0034] In addition, by arranging the second stop 2122 on the rear side of a portion of the locking portion 2121, this embodiment can reduce the number of telescopic stops of the ISOFIX anchoring device 20, increase the support length between the slider 21 and the base 10 when it is in the extended position, further improve the connection strength and rigidity between the slider 21 and the base 10, improve the head impact test data of the child safety seat 1000, and improve the safety of the child safety seat 1000.

[0035] In some embodiments of this utility model, such as Figure 8 and Figure 9As shown, both the first stop 101 and the second stop 2122 are protrusions adapted to abut against each other in the front-rear direction. This not only precisely limits the maximum rearward extension of the sliding member 21 of the ISOFIX anchoring device 20, keeping the sliding member 21 in the extended position and preventing excessive extension of the sliding member 21 that would deplete the support margin, but also disperses the force through the contact of the protrusion surfaces, reducing the accumulation of assembly gaps. Furthermore, it improves structural rigidity, suppresses stress concentration and excessive displacement during impact, enhances the stability of test data, and effectively ensures the safety of children riding in vehicles.

[0036] In some embodiments of this utility model, such as Figures 6-9 As shown, there are multiple second stop portions 2122, which are respectively arranged on the left and right sides and / or the upper and lower sides of the slider 21. There are multiple first stop portions 101, which correspond one-to-one with the multiple second stop portions 2122.

[0037] For example, the number of second stop portions 2122 can be two, three, four, five, six or more. Multiple second stop portions 2122 can be arranged on the left and right sides of the slider 21, multiple second stop portions 2122 can also be arranged on the upper and lower sides of the slider 21, multiple second stop portions 2122 can also be arranged on the left and right sides and the upper and lower sides of the slider 21.

[0038] This embodiment, by distributing multiple second stops 2122 on the left and right sides and / or the top and bottom sides of the slider 21, can uniformly limit the slider 21 in all directions along its circumference, preventing unilateral offset of the ISOFIX anchoring device 20 during telescopic adjustment. This multi-directionally offsets the accumulation of assembly gaps and improves the connection stability between the slider 21 and the base 10. Simultaneously, the multiple second stops 2122 can synchronously abut with the multiple first stops 101, distributing force and preventing stress concentration. This further enhances the connection rigidity between the slider 21 and the base 10, effectively suppressing structural swaying and impact displacement at the maximum extension position, improving the stability of impact test data, and further enhancing the safety performance of the child safety seat 1000.

[0039] In some embodiments of this utility model, such as Figure 4 and Figure 5As shown, the surface of the slider 21 facing the slide groove 111 has a groove 2123, which extends in the front-rear direction. The second stop 2122 is disposed within the groove 2123. In this embodiment, by providing a groove 2123 on the surface of the slider 21, the sliding contact area between the slider 21 and the sidewall of the groove 2123 can be reduced, frictional resistance can be reduced, the smoothness of sliding of the slider 21 can be improved, and the sensitivity of telescopic position adjustment can be improved. At the same time, by disposing of the second stop 2122 within the groove 2123, the second stop 2122 can be prevented from occupying additional space, making the structural arrangement of the base assembly 100 more compact.

[0040] In some embodiments of this utility model, such as Figure 5 and Figure 7 As shown, the sliding member 21 includes a connecting tube 211 and a locking rod 212. The connecting tube 211 extends in the front-to-back direction. There are two locking rods 212, which are fixed to the left and right sides of the connecting tube 211 respectively. Multiple locking parts 2121 are provided on the locking rods 212, and a second stop part 2122 is also provided on the locking rods 212. In this embodiment, by including the connecting tube 211 and the locking rod 212 separately in the sliding member 21, not only can the connecting tube 211 and the locking rod 212 be processed separately, reducing the processing difficulty and improving production efficiency, but also the overall structural strength of the sliding member 21 can be improved. By arranging the two locking rods 212 on the left and right sides of the connecting tube 211 respectively, and providing the second stop part 2122 and the locking part 2121 on the locking rods 212, the force on the left and right sides of the sliding member 21 can be evenly distributed, and the arrangement structure on the locking rods 212 can be compact.

[0041] In some embodiments of this utility model, such as Figures 3-5 As shown, the locking lever 212 is a vertically oriented, elongated strip-shaped plate. This enhances the structural strength of the locking lever 212, improves the bending and torsional resistance of the locking lever 212 and the sliding member 21, increases the contact area between the locking lever 212 and the base 10, and improves the connection reliability between the locking lever 212 and the base 10. Furthermore, the locking portion 2121 is formed as a locking hole that extends through the locking lever 212 in the left-right direction. This simplifies the structure of the locking portion 2121, facilitating manufacturing. Simultaneously, the locking portion 2121 being a locking hole reduces the clearance between the locking portion 2121 and the locking member 22, improving the locking stability of the locking member 22 and the sliding member 21, and enhancing the safety performance of the child safety seat 1000.

[0042] In some embodiments of this utility model, such as Figure 3As shown, in the left-right direction, the side surface of the locking rod 212 facing away from the connecting pipe 211 is provided with a recessed groove 2123. The groove 2123 extends in the front-back direction, and the groove 2123 and the locking part 2121 are arranged at intervals in the vertical direction. Multiple locking parts 2121 are located between the front and rear side walls of the groove 2123. The second stop part 2122 is disposed within the groove 2123. In this embodiment, by arranging the second stop part 2122 within the groove 2123 and arranging the locking part 2121 and the groove 2123 at intervals in the vertical direction, not only can the second stop part 2122 and the locking part 2121 be integrated onto the locking rod 212, resulting in a compact structure, but it can also reduce the mutual interference between the second stop part 2122 and the locking part 2121.

[0043] like Figure 8 and Figure 9 As shown, each locking lever 212 is provided with two grooves 2123, which are spaced apart in the vertical direction. The top of the groove 2123 located on the upper side of the locking lever 212 is open, and the upper end face of the second stop portion 2122 in the groove 2123 located on the upper side of the locking lever 212 is flush with the upper edge of the groove 2123. The bottom of the groove 2123 located on the lower side of the locking lever 212 is open, and the lower cross-section of the second stop portion 2122 in the groove 2123 located on the lower side of the locking lever 212 is flush with the lower edge of the groove 2123.

[0044] In some embodiments of this utility model, such as Figure 4 , Figure 6 , Figure 8 and Figure 12 As shown, there are two sliders 21, which are arranged at intervals in the left-right direction. There are multiple grooves 111, which correspond one-to-one with the multiple sliders 21. By setting two sliders 21 in this embodiment, the force on the sliders 21 can be distributed, reducing the risk of stress concentration. It can also further improve the stability of the sliders 21 during the sliding process and prevent deviation or jamming during the sliding process.

[0045] In some embodiments of this utility model, such as Figure 4 , Figure 6 and Figure 8 As shown, the ISOFIX anchoring device 20 also includes an interface rod 23, one end of which is connected to the rear end of the sliding member 21, and the other end of the interface rod 23 is provided with an ISOFIX interface 231.

[0046] Furthermore, such as Figure 6 and Figure 8As shown, the ISOFIX anchoring device 20 further includes: a transverse rod 24 extending laterally and fixed to the rear end of the sliding member 21; one end of an interface rod 23 rotatably connected to the transverse rod 24; and the interface rod 23 in a first position relative to the transverse rod 24 about its laterally extending axis of rotation (e.g., ...). Figure 3 The position of the interface rod 23 shown) and the second position (e.g. Figure 4 The interface rod 23 shown is rotatable between its position and the position shown. In the first position, the interface rod 23 extends forward and backward, and the ISOFIX interface 231 of the interface rod 23 is located in front of the transverse rod 24. In the second position, the interface rod 23 extends forward and backward, and the ISOFIX interface 231 is located in front of the transverse rod 24.

[0047] The ISOFIX anchoring device 20 of this embodiment has a retracted state, a first extended state, and a second extended state. In the retracted state, as... Figure 3 As shown, the slider 21 is in the retracted position, and the interface rod 23 is in the first position. At this time, the ISOFIX interface 231 of the interface rod 23 is located in front of the horizontal rod 24 and is set towards the front of the base 10.

[0048] When it is necessary to extend the ISOFIX interface 231 of the interface rod 23, the interface rod 23 can be rotated 180° downwards and backwards from the first position to the second position. At this time, as Figure 4 As shown, the ISOFIX interface 231 of the interface rod 23 is located on the rear side of the transverse rod 24 and is set to the rear. The rear end of the interface rod 23 extends backward to the rear end of the base body 11. The sliding member 21 is still in the retracted position. At this time, the ISOFIX anchoring device 20 switches to the first extended state with the shortest extension length.

[0049] When it is necessary to adjust to the maximum telescopic position, the locking member 22 can be disengaged from the locking part 2121, and the sliding member 21 can be pulled backward to position the sliding member 21 in the extended position. At the same time, the interface rod 23 remains in the second position. At this time, as Figure 6 As shown, the ISOFIX anchoring device 20 switches to the second extended state with the longest extension length.

[0050] Furthermore, such as Figure 6 and Figure 8 As shown, there are two interface rods 23, which are connected to the left and right ends of the transverse rod 24, respectively. By connecting the two interface rods 23 to the left and right ends of the transverse rod 24, not only can the two interface rods 23 accurately match the standard spacing of the seat interfaces on the vehicle body, but a symmetrical force-bearing structure can also be formed, which can evenly transmit the impact force to the transverse rod 24 and the sliding member 21, thereby improving the connection rigidity and reliability, and enhancing the safety stability of the child safety seat 1000.

[0051] In some embodiments of this utility model, such as Figure 8 and Figure 9 As shown, the base 10 includes: a base body 11 and a fixing frame 12. The base body 11 defines a sliding groove 111 that is open at both the top and the rear end. The base body 11 is also provided with fixing parts 112, which are respectively arranged on both sides of the sliding groove 111 in the left-right direction. The fixing frame 12 is arranged on the upper side of the sliding groove 111 and its two ends are respectively connected to the fixing parts 112 located on both sides of the sliding groove 111. The sliding member 21 is disposed between the fixing frame 12 and the base body 11 and slides with the fixing frame 12. The first stop part 101 is disposed on the fixing frame 12 and / or the base body 11.

[0052] The first stop 101 may be provided only on the fixed frame 12, or it may be provided only on the base body 11. Alternatively, the first stop 101 may be provided on both the fixed frame 12 and the base body 11.

[0053] In this embodiment, by opening the top and rear end of the slide groove 111 on the base body 11, the installation of the sliding member 21 can be facilitated, and the sliding member 21 can be extended backwards easily. Simultaneously, by mounting the fixing bracket 12 above the slide groove 111 and allowing the fixing bracket 12 to slide and engage with the sliding member 21, the fixing bracket 12 can cooperate with the base body 11 to clamp and limit the sliding member 21 in the vertical direction, reducing assembly gaps and minimizing the offset or tilting of the sliding member 21 during sliding. This further improves the reliability and stability of the connection between the sliding member 21 and the base 10, increases connection rigidity, and enhances the safety reliability of the child safety seat 1000 during crash tests.

[0054] In some embodiments of this utility model, such as Figures 9-11 As shown, the fixing frame 12 includes: a top plate 121, a side plate 122 and a connecting edge 123. The top plate 121 extends in the left and right direction. There are two side plates 122. The two side plates 122 are respectively connected to the left and right sides of the top plate 121 and extend downward toward the base body 11. The connecting edge 123 is connected to the lower end of the side plate 122 and extends in the left and right direction toward the direction away from the slide groove 111. The connecting edge 123 is detachably connected to the fixing part 112. The first stop part 101 is provided on the top plate 121 and / or the side plate 122.

[0055] In some examples, the fixing part 112 and the connecting edge 123 can be snap-fitted together or fastened together with fasteners. This facilitates the installation and removal of the fixing bracket 12 and the sliding part 21, improving assembly efficiency and maintenance convenience.

[0056] In some examples, the first stop 101 may be provided only on the top plate 121, or only on the side plate 122. Alternatively, the first stop 101 may be provided on both the top plate 121 and the side plate 122 simultaneously, meaning the first stop 101 is connected to both the top plate 121 and the side plate 122. Further, the first stop 101 is provided on the surface of the top plate 121 and the side plate 122 facing the slide groove 111. In this embodiment, by providing the first stop 101 on the top plate 121 and / or the side plate 122, the position of the first stop 101 can be correspondingly set according to the arrangement position of the second stop 2122 on the sliding member 21, so that the positions of the first stop 101 and the second stop 2122 are adapted to each other, facilitating the limiting of the sliding member 21 in the extended position and improving the stability of the limiting.

[0057] In this embodiment, by connecting the top plate 121 with the two side plates 122 to form a U-shaped frame structure with a downward opening 302, the fixing frame 12 can wrap around the sliding member 21 from top to bottom and from the left and right sides, restricting the offset of the sliding member 21 in the vertical and horizontal directions when it slides, reducing the sliding gap, improving the overall structural rigidity between the base 10 and the sliding member 21, and improving the safety performance of the child safety seat 1000.

[0058] In some embodiments of this utility model, such as Figure 10 and Figure 11 As shown, in the left-right direction, the first stop portion 101 is formed by a portion of the side plate 122 protruding towards the other side plate 122. Therefore, there is no need to add an additional structural component as the first stop portion 101 on the side plate 122, reducing the number of parts, and also improving the structural strength of the side plate 122 and the fixing bracket 12, improving the limiting reliability of the fixing bracket 12 on the sliding member 21, and extending the service life.

[0059] In some embodiments of this utility model, such as Figure 10 and Figure 11 As shown, the first stop portion 101 extends in the front-rear direction, and in this direction, the front and rear end edges of the first stop portion 101 do not extend beyond the front and rear side edges of the side plate 122. In other words, the first stop portion 101 is located between the front and rear side edges of the side plate 122. Thus, while improving the structural strength of the fixing frame 12, interference between the first stop portion 101 and other components of the base assembly 100 can be avoided, ensuring smooth sliding of the sliding member 21.

[0060] In some embodiments of this utility model, such as Figures 9-11As shown, the fixing frame 12 may further include reinforcing ribs 124, which extend in the left-right direction. In this direction, the reinforcing ribs 124 are sequentially connected to the connecting edge 123, side plate 122, top plate 121, side plate 122, and connecting edge 123. There are multiple reinforcing ribs 124, which are spaced apart in the front-rear direction. Two of the reinforcing ribs 124 are respectively connected to the front and rear edges of the top plate 121, side plate 122, and connecting edge 123. By providing reinforcing ribs 124, this embodiment can further improve the structural strength of the fixing frame 12 and enhance the reliability and stability of the fixing frame 12 in limiting the sliding member 21 in the left-right and up-down directions.

[0061] In some embodiments of this utility model, such as Figure 9 , Figures 11-13 As shown, the fixing part 112 is an upwardly protruding boss. The fixing part 112 has a first fixing hole 1121, and the connecting edge 123 has a second fixing hole 1231. The fixing bracket 12 is fixed to the fixing part 112 by fasteners passing through the first fixing hole 1121 and the second fixing hole 1231. By setting the fixing part 112 as an upwardly protruding boss structure, not only can the fixing bracket 12 be easily fixed, but the structural strength of the base body 11 can also be improved. By connecting the fixing part 112 and the connecting edge 123 with fasteners, the connection reliability and assembly / disassembly efficiency between the fixing part 112 and the fixing bracket 12 can be improved.

[0062] Furthermore, such as Figures 12-13 As shown, the fixing part 112 and the first stop part 101 provided on the base body 11 are arranged side by side in the left-right direction, and the fixing part 112 and the first stop part 101 provided on the base body 11 are connected as one unit. As a result, the structural strength of the fixing part 112 and the first stop part 101 can be further improved, the fixing reliability of the fixing frame 12 can be improved, the reliability of the limiting cooperation with the second stop part 2122 can be improved, and the compact structure can reduce the space occupation.

[0063] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the ISOFIX anchoring device 20 also includes an adjustment mechanism 25, which is mounted on the base 10 and connected to the locking member 22. The adjustment mechanism 25 drives the locking member 22 to move between a locked position and an unlocked position. In the locked position, the locking member 22 is adapted to engage with the locking part 2121; in the unlocked position, the locking member 22 is disengaged from the locking part 2121. By providing the adjustment mechanism 25, the telescopic adjustment of the ISOFIX anchoring device 20 can be easily achieved, improving the ease of operation for adjustment.

[0064] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the adjustment mechanism 25 includes an operating member 251 and a transmission rod 252. The two ends of the transmission rod 252 are rotatably connected to the operating member 251 and the locking member 22, respectively. The operating member 251 drives the locking member 22 to move between a locked position and an unlocked position via the transmission rod 252. For example... Figure 3 and Figure 4 As shown, the front end of the transmission rod 252 is connected to the operating member 251, and the rear end of the transmission rod 252 is connected to the locking member 22. When it is necessary to adjust the sliding member 21, the operating member 251 is triggered by pressing or flicking. The operating member 251 drives the locking member 22 to move through the transmission rod 252, so that the locking member 22 moves to the unlocked position. At this time, the sliding member 21 can be pulled back and forth. When the sliding member 21 is adjusted to the correct position, the operating member 251 can be released, or the operating member 251 can be triggered again to move the locking member 22 to the locked position.

[0065] In some examples, the operating element 251 can be a pressing element, and the operating element 251 can be connected to the drive rod 252 by a pull cable.

[0066] In some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the transmission rod 252 includes: a pivot part 2521, a first rod segment 2522, and a second rod segment 2523. The pivot part 2521 is rotatably connected to the base 10 about a vertically extending axis. The first rod segment 2522 and the second rod segment 2523 are both connected to the pivot part 2521 and are arranged at an angle in the horizontal plane. The end of the first rod segment 2522 facing away from the pivot part 2521 is connected to the operating member 251, and the end of the second rod segment 2523 facing away from the pivot part 2521 is connected to the locking member 22.

[0067] like Figure 4 As shown, when the operating member 251 is pulled forward, the operating member 251 can drive the end of the first rod segment 2522 away from the pivot 2521 to move forward. Since the first rod segment 2522 and the second rod segment 2523 are generally arranged in an L-shape, the first rod segment 2522 rotates forward around the pivot 2521, which can drive the second rod segment 2523 to rotate around the pivot 2521 in the left-right direction toward the center of the base assembly 100. This causes the rear end of the second rod segment 2523 to move in the left-right direction toward the center of the base assembly 100, thereby pulling the locking member 22 to move in the left-right direction toward the center of the base assembly 100, so that the locking member 22 is separated from the locking part 2121 on the sliding member 21. At this time, the sliding member 21 can be pulled back and forth to adjust the telescopic position of the ISOFIX anchoring device 20.

[0068] In this embodiment, the transmission rod 252 can convert the force exerted by the operating member 251 in the front-back direction into a force in the left-right direction, which is used to drive the locking member 22 to move between the unlocked position and the locked position in the left-right direction. Thus, not only can the operating force be efficiently transmitted, but the structure of the adjustment mechanism 25 can also be compactly adjusted, saving space.

[0069] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, there are two transmission rods 252, both connected to the operating member 251. The two transmission rods 252 are symmetrically arranged in the left-right direction and correspond one-to-one with the two locking members 22 and the two sliding members 21. Thus, by operating the operating member 251, the two spaced-apart sliding members 21 can be unlocked simultaneously, achieving simultaneous unlocking or locking of the two sliding members 21. This reduces the risk of one-sided loosening of the sliding members 21, improves the overall rigidity of the ISOFIX anchoring device 20, and enhances the safety performance of the child safety seat 1000.

[0070] In some embodiments of this utility model, such as Figure 6 and Figure 12 As shown, the bottom wall of the slide groove 111 is provided with multiple support ribs 113 arranged in the front-to-back direction, and the sliding member 21 is supported on the multiple support ribs 113. The support ribs 113 can extend in the left-to-right direction, or they can extend obliquely towards the front or rear in the left-to-right direction. In this embodiment, by supporting the sliding member 21 on the multiple support ribs 113, the contact area between the sliding member 21 and the groove wall of the slide groove 111 can be reduced, frictional resistance can be reduced, and the sliding process of the sliding member 21 can be ensured to be smooth. In addition, the support ribs 113 can also improve the structural strength of the base body 11.

[0071] In some embodiments of this utility model, such as Figures 14-20 As shown, the base assembly 100 of the child safety seat 1000 also includes a storage cup 30, which is disposed on the base 10 and defines a storage cavity 301. The top of the storage cavity 301 is open to form an opening 302, and the diameter of the opening 302 is greater than or equal to 60 mm. For example, the diameter of the top opening 302 of the storage cavity 301 can be 60 mm, 61 mm, 62 mm, 63 mm, 64 mm, 65 mm, 66 mm, 67 mm, 68 mm, 69 mm, or 70 mm, etc.

[0072] This embodiment features a cup 30 with a storage cavity 301 and an opening 302 at the top, making it convenient for parents or children to put in and take out children's water cups and other items, thus improving ease of use. By making the diameter of the opening 302 of the storage cavity 301 greater than or equal to 60mm, the cup 30 can accommodate more items or hold water cups with large outer diameters, improving the versatility of the cup 30.

[0073] In some embodiments of this utility model, such as Figure 14 and Figure 15 As shown, the cup 30 and the base 10 are detachably connected. For example, the cup 30 and the base 10 can be connected by snap-fit, threaded connection, or fasteners. This facilitates the installation and removal of the cup 30 and the base 10.

[0074] In some embodiments of this utility model, such as Figure 14 and Figure 15 As shown, the base 10 has a socket 114, and the inner wall of the socket 114 has a first engaging portion 115. The cup 30 includes a holding arm 31, and the holding arm 31 has a second engaging portion 313. At least a portion of the holding arm 31 extends into the socket 114, and the first engaging portion 115 and the second engaging portion 313 are engaged and connected. In this embodiment, by setting the holding arm 31 and extending it into the socket 114, the holding arm 31 and the socket 114 can not only play a preliminary engaging role, but also increase the connection area between the cup 30 and the base 10, thereby improving the reliability between the cup 30 and the base 10. At the same time, the engagement of the first engaging portion 115 and the second engaging portion 313 can further improve the stability of the engagement between the holding arm 31 and the base 10, preventing the cup 30 from shaking.

[0075] In some embodiments of this utility model, such as Figure 14 and Figure 15 As shown, one of the first engaging portion 115 and the second engaging portion 313 is formed as a protrusion and the other as a groove. For example, when the first engaging portion 115 is formed as a groove, the second engaging portion 313 is a protrusion; when the first engaging portion 115 is formed as a protrusion, the second engaging portion 313 is a groove. This simplifies the structure of the first engaging portion 115 and the second engaging portion 313, facilitates processing, reduces processing difficulty, and improves production efficiency.

[0076] In some embodiments of this utility model, such as Figure 14 and Figure 16As shown, storage cups 30 are provided on both the left and right sides of the base 10, and the storage cups 30 are arranged at the front of the base 10. This not only increases the storage capacity, but also allows parents and children to easily access items from both sides of the child safety seat 1000, enhancing its usability. Furthermore, the storage cups 30 on the left and right sides are symmetrically arranged about the base 10.

[0077] In some embodiments of this utility model, such as Figures 17-20 As shown, the cup 30 includes a cup ring 32, a side panel 33, and a base 34. The cup ring 32 is annular and defines an opening 302 on its inner side. The side panel 33 is connected to the cup ring 32 and extends downward. The base 34 is connected to the lower end of the side panel 33 and is positioned opposite the opening 302 in the vertical direction. The side panel 33, the base 34, and the cup ring 32 cooperate to enclose a storage cavity 301. The cup ring 32 can circumferentially limit the water cup or item placed inside the cup 30, while the side panel 33 and the base 34 can limit the water cup or item in the storage cavity 301 in the radial and vertical directions, thereby preventing the water cup or item from falling out.

[0078] In some embodiments of this utility model, such as Figure 15 and Figure 18 As shown, the retaining arm 31 includes a horizontal section 311 and a retaining section 312 connected in an L-shape. One end of the horizontal section 311 is connected to the upper end of the side wall 33, and the other end extends radially outward along the cup ring 32. One end of the retaining section 312 is connected to the other end of the horizontal section 311, and the other end of the retaining section 312 extends downward and obliquely away from the cup ring 32. The retaining section 312 fits into the insertion hole 114, and a second engaging part 313 is provided on the retaining section 312. The horizontal section 311 of the retaining arm 31 can space the main body of the cup 30 (cup ring 32, side wall 33, and base 34) from the base 10, avoiding interference between the base 10 and the main body of the cup 30. The downwardly obliquely extending retaining section 312 can increase the contact area and retaining force between the retaining section 312 and the inner wall of the insertion hole 114, improving the reliability and stability of fixing the cup 30.

[0079] In some embodiments of this utility model, such as Figure 17 and Figure 18 As shown, the side circumference 33 extends into an arc-shaped plate along the circumference of the cup ring 32, thereby reducing the amount of material used, lightening the weight of the cup 30, and reducing costs.

[0080] In some embodiments of this utility model, such as Figure 17 and Figure 18As shown, the cup 30 also includes reinforcing plates 35, which are connected to the side circumference 33 and extend vertically. Multiple reinforcing plates 35 are arranged at intervals along the circumference of the cup ring 32. For example, the number of reinforcing plates 35 can be two, three, four, or more. The reinforcing plates 35 enhance the overall structural strength of the cup 30, improving its durability and service life. Furthermore, in the left-right direction, the surface of the reinforcing plate 35 facing the base 10 can abut against the surface of the base 10, thereby further improving the reliability of the connection between the cup 30 and the base 10.

[0081] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the base assembly 100 may further include a top cover 40, which covers the upper side of the base 10. The ISOFIX anchoring device 20 can be arranged between the base 10 and the top cover 40. Specifically, the sliding member 21, the locking member 22, and the transmission rod 252 are all arranged between the base 10 and the top cover 40. In this way, the base 10 and the top cover 40 cooperate to define an arrangement cavity for arranging and accommodating the ISOFIX anchoring device 20. This allows for a compact structure of the base assembly 100 and also isolates the transmission structure of the ISOFIX anchoring device 20 from the external environment, preventing debris in the external environment or other structures of the base assembly 100 from affecting the normal operation of the transmission structure.

[0082] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the base assembly 100 also includes a seat plate 50 and an adjustment member 60. The seat plate 50 is arranged on the upper side of the upper cover 40, and the position of the seat plate 50 and the upper cover 40 in the front-rear direction is adjustable. The adjustment member 60 is connected to the seat plate 50 and is used to adjust the position of the seat plate 50. In this way, users can adjust the position of the seat plate 50 according to children of different heights, thereby adjusting the child's legroom and improving the comfort of the child safety seat 1000.

[0083] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the base assembly 100 also includes armrests 70, which are connected to the upper cover 40 and located on the upper side of the upper cover 40. There are two armrests 70, arranged on the left and right sides of the base assembly 100 respectively. The armrests 70 extend in the front-to-back direction, with their rear ends connected to the rear ends of the upper cover 40, and their front ends extending upwards and forwards at an angle. By providing armrests 70, support can be provided for the child's hands, and excessive lateral movement can be prevented, improving the comfort and safety of the child when riding in the child safety seat 1000.

[0084] The child safety seat 1000 according to a second aspect embodiment of the present invention includes a base assembly 100 of the child safety seat 1000 according to the first aspect embodiment of the present invention.

[0085] The child safety seat 1000 according to the present utility model improves the overall performance of the child safety seat 1000 by providing the base assembly 100 of the child safety seat 1000 of the first aspect embodiment described above.

[0086] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the child safety seat 1000 also includes a backrest 200 and a headrest assembly 300. The backrest 200 is connected to the rear end of the base assembly 100 and extends upward; the headrest assembly 300 is located on the upper part of the backrest 200. The backrest 200 has a forward-opening U-shaped structure, and its width gradually increases from back to front. The headrest assembly 300 also has a forward-opening U-shaped structure and is located on the front side of the upper part of the backrest 200.

[0087] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the child safety seat 1000 may further include a side impact protection component 400, which is disposed on the left and right sides of the seat back 200. The side impact protection component 400 has a protected state and an initial state. In the protected state, at least a portion of the side impact protection component 400 protrudes from the left and right side walls of the seat back 200. In the initial state, the side impact protection component 400 is retracted within the seat back 200. For example... Figure 1 As shown, the side impact protection component 400 located on the left side of the seat back 200 is in a protected state. The side impact protection component 400 protrudes from the outer surface of the left side of the seat back 200 and is used to provide side impact protection for the child safety seat 1000 on the left side. For example... Figure 2 As shown, the side impact protection component 400 located on the right side of the seat back 200 is in its initial state. The side impact protection component 400 is stored inside the seat back 200, and at this time, it does not provide side impact protection.

[0088] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0090] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A base assembly (100) for a child safety seat (1000), characterized in that, include: The base (10) is provided with a groove (111) extending in the front-rear direction; An ISOFIX anchoring device (20) includes a sliding member (21) and a locking member (22). The sliding member (21) is slidably fitted in the groove (111) between a retracted position and an extended position in the front-back direction. The sliding member (21) is provided with a plurality of locking parts (2121) arranged at intervals in the front-back direction. The locking member (22) is movably provided on the base (10) and is adapted to lock into any one of the locking parts (2121) so that the sliding member (21) is relatively fixed to the base (10). The base (10) is provided with a first stop (101), and the sliding member (21) is provided with a second stop (2122). When the sliding member (21) is in the extended position, the first stop (101) and the second stop (2122) are in a limiting cooperation.

2. The base assembly (100) of the child safety seat (1000) according to claim 1, characterized in that, At least one of the locking portions (2121) is arranged on the front side of the second stop portion (2122).

3. The base assembly (100) of the child safety seat (1000) according to claim 1, characterized in that, Both the first stop (101) and the second stop (2122) are protrusions and are adapted to abut in the front-back direction.

4. The base assembly (100) of the child safety seat (1000) according to claim 3, characterized in that, The number of second stop portions (2122) is multiple, and the multiple second stop portions (2122) are respectively arranged on the left and right sides and / or the upper and lower sides of the sliding member (21). The number of first stop portions (101) is multiple, and they correspond one-to-one with the multiple second stop portions (2122); and / or, The sliding member (21) has a groove (2123) on the side wall facing the slide groove (111), the groove (2123) extends in the front-back direction, and the second stop (2122) is provided in the groove (2123).

5. The base assembly (100) of the child safety seat (1000) according to any one of claims 1-4, characterized in that, The base (10) includes: The base body (11) defines the slide groove (111) which is open at both the top and the rear end. The base body (11) is also provided with a fixing part (112), which is respectively arranged on both sides of the slide groove (111) in the left-right direction. A fixing frame (12) is arranged on the upper side of the slide groove (111) and its two ends are respectively connected to the fixing parts (112) located on both sides of the slide groove (111). The sliding member (21) is disposed between the fixing frame (12) and the base body (11) and slides with the fixing frame (12). The first stop (101) is disposed on the fixing frame (12) and / or the base body (11).

6. The base assembly (100) of the child safety seat (1000) according to claim 5, characterized in that, The fixing frame (12) includes a top plate (121), side plates (122), and connecting edge (123). The top plate (121) extends in the left-right direction. There are two side plates (122), which are respectively connected to the left and right edges of the top plate (121) and extend downward toward the base body (11). The connecting edge (123) is connected to the lower end of the side plate (122) and extends in the left-right direction away from the slide groove (111). The connecting edge (123) is detachably connected to the fixing part (112), and the first stop part (101) is provided on the top plate (121) and / or the side plate (122).

7. The base assembly (100) of the child safety seat (1000) according to claim 6, characterized in that, The first stop (101) is formed by a portion of the side plate (122) protruding toward the other side plate (122); and / or, The first stop (101) extends in the front-rear direction, and in the front-rear direction, the front and rear end edges of the first stop (101) do not extend beyond the front and rear side edges of the side plate (122).

8. The base assembly (100) of the child safety seat (1000) according to claim 1, characterized in that, Also includes: A storage cup (30) is disposed on the base (10). The storage cup (30) defines a storage cavity (301). The top of the storage cavity (301) is open to form an opening (302). The diameter of the opening (302) is greater than or equal to 60 mm.

9. The base assembly (100) of the child safety seat (1000) according to claim 8, characterized in that, The base (10) is provided with a socket (114), and the inner wall of the socket (114) is provided with a first engaging part (115). The cup (30) includes a holding arm (31), and the holding arm (31) is provided with a second engaging part (313). At least a portion of the holding arm (31) extends into the socket (114), and the first engaging part (115) and the second engaging part (313) are engaged and connected. One of the first engaging part (115) and the second engaging part (313) is formed as a protrusion and the other is formed as a groove.

10. A child safety seat (1000), characterized in that, Includes the base assembly (100) of the child safety seat (1000) according to any one of claims 1-9.

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