Child safety seat

Abstract

The utility model provides a child safety seat which comprises the components of a base which comprises a base housing and a supporting frame which is accommodated in the base housing; the seat body is mounted on the base and is provided with a forward position and a backward position relative to the base; and the at least one limiting structure is arranged between the seat body and the supporting frame. The base shell is provided with an opening for the limiting structures to penetrate through, and at least one limiting structure comprises an upper limiting structure and a lower limiting structure; the upper limiting structure comprises a first upper limiting component and a second upper limiting component, the first upper limiting component is arranged at the upper end of the supporting frame and exposed out of the opening, and the second upper limiting component is arranged on the back face of the seat body. When the seat body is in the forward position, the seat body and the supporting frame are clamped through the upper limiting structure, and the lower limiting structure is in a separated state; when the seat body is located at the backward position, the seat body and the supporting frame are clamped through the lower limiting structure, and the upper limiting structure is in a separated state.

Description

Technical Field

[0001] This utility model relates to a child safety seat and its base. Background Technology

[0002] Child safety seats can be installed in vehicle seats for children to ride in, effectively ensuring their safety while traveling. A typical child safety seat consists of a base and a child seat. The child seat can be installed forward-facing or rear-facing on the base, creating a space to accommodate the child. The tilt angle of the child seat relative to the base can be adjusted to provide comfortable and safe support for children in sitting or reclining positions. There is an urgent need for a simple solution for adjusting the tilt angle of child seats. Utility Model Content

[0003] In one aspect, this utility model provides a child safety seat, comprising: a base, including a base housing and a support frame housed within the base housing; the base housing includes a base portion and an abutment portion extending upward from the base portion, the base portion for abutting against the seat surface of a vehicle seat, and the abutment portion for abutting against the backrest of the vehicle seat; a seat body, including a seat portion and a backrest portion extending upward from the seat portion; the seat body is mounted on the base; and at least one limiting structure. The seat body and the support frame are adapted to engage via the at least one limiting structure to prevent the seat body from tilting forward relative to the base.

[0004] In one embodiment of this utility model, the seat body has a forward position and a rearward position relative to the base; the at least one limiting structure includes an upper limiting structure and a lower limiting structure; when the seat body is in the forward position, the backrest is engaged with the support frame through the upper limiting structure, and the lower limiting structure is in a separated state; when the seat body is in the rearward position, the seat is engaged with the support frame through the lower limiting structure, and the upper limiting structure is in a separated state.

[0005] In one embodiment of this utility model, the top of the abutment portion is provided with a first opening, and the upper end of the support frame extends out from the first opening; the at least one limiting structure includes an upper limit structure, the upper limit structure includes a first upper limit member and a second upper limit member, the first upper limit member is disposed at the upper end of the support frame, and the second upper limit member is disposed on the back of the backrest portion; when the seat body is in a forward position relative to the base, the first upper limit member and the second upper limit member cooperate, and at least one of the first upper limit member and the second upper limit member has a hook-shaped cross section.

[0006] In one embodiment of the present invention, the first upper limit member is provided with a support ring; the child safety seat further includes a top strap, the first end of which is connected to the base, and the second end of which extends upward, such that the middle part of the top strap passes around the support ring.

[0007] In one embodiment of this utility model, the child safety seat further includes a mounting base, which is non-rotatably connected to the base housing and is located between the base and the seat body; the at least one limiting structure includes a lower limiting structure, which includes a first lower limiting member and a second lower limiting member. The first lower limiting member extends from the support frame through the mounting base toward the seat portion, and the second lower limiting member is configured to protrude from the back of the seat portion. When the seat body is in a rearward position relative to the base, the first lower limiting member and the second lower limiting member cooperate.

[0008] In one embodiment of the present invention, when the seat body is in a rearward position relative to the base, the first lower limit member and the second lower limit member are in clearance fit; at least one of the first lower limit member and the second lower limit member has a hook-shaped cross-section.

[0009] In one embodiment of the present invention, the support frame includes two longitudinal bars and a second transverse bar connected between the two longitudinal bars. A fixed seat is provided on the second transverse bar, and the second lower limiting member extends from the fixed seat.

[0010] In one embodiment of the present invention, the abutment portion of the base housing is provided with a clamping groove and a clamping device; the first end of the clamping device is pivotally connected to the base housing, and the second end of the clamping device is provided with a third locking mechanism. The clamping device is locked in the clamping groove by the third locking mechanism to clamp the vehicle seat belt at the abutment portion.

[0011] In one embodiment of the present invention, the support frame is configured to be operably slidable relative to the base housing to change the tilt angle of the seat body relative to the base.

[0012] In one embodiment of this utility model, a sliding track is provided inside the base housing, and the support frame slides in conjunction with the sliding track; the sliding track is provided with a plurality of first locking holes; the support frame is provided with a first locking mechanism, the first locking mechanism including a first locking member; the first locking member selectively engages with one of the plurality of first locking holes to position the support frame at different positions on the sliding track.

[0013] In one embodiment of the present invention, the child safety seat further includes a mounting base, the seat body is fixedly mounted on the support frame via the mounting base, and can slide back and forth relative to the base housing.

[0014] In one embodiment of this utility model, the base is provided with a plurality of first locking holes; the mounting base is provided with a first locking mechanism, the first locking mechanism including a first locking member, a first releasing member and a first traction rope; the first locking member selectively engages with one of the plurality of first locking holes to position the seat body at different tilt angles; the first releasing member is connected to the first locking member through the first traction rope and is used to drive the first locking member to exit from the corresponding first locking hole; the mounting base is provided with a guide wheel that cooperates with the first traction rope.

[0015] In one embodiment of this utility model, the mounting base and the base housing are connected in a non-rotatable manner; a handle is provided on the front side of the mounting base, and the first unlocking member is provided on the handle.

[0016] In one embodiment of the present invention, at least a portion of the sliding track is formed by an attachment disposed inside the base housing. The attachment has a groove that slides in cooperation with the support frame. The groove wall is provided with an elongated hole. A pin is provided on the support frame, and the pin slides in cooperation with the elongated hole.

[0017] In one embodiment of the present invention, the support frame is provided with a guide hole that slides with the first locking member, the first locking member passes through the guide hole and selectively engages with one of the plurality of first locking holes.

[0018] In one embodiment of the present invention, the support frame includes two longitudinal bars and two first transverse bars connected between the two longitudinal bars; the mounting base includes a cover and a snap-fit ​​portion protruding downward from the cover; the snap-fit ​​portion is clamped between the two first transverse bars.

[0019] In one embodiment of the present invention, the mounting base has a central hole; the seat body has a rotating shaft, and the central hole is pivotally connected to the rotating shaft; an axial limiting mechanism is provided on the rotating shaft, and the axial limiting mechanism cooperates with the locking part to form a locking groove, and the two first crossbars are locked with the locking groove.

[0020] In one embodiment of the present invention, the support frame further includes a second crossbar connected between the two longitudinal bars. The second crossbar is closer to the abutment relative to the two first crossbars. A fixing seat is provided on the second crossbar, and the fixing seat is connected to the mounting seat by fasteners.

[0021] In one embodiment of the present invention, the axial limiting mechanism includes a limiting flange, which abuts against the two longitudinal rods.

[0022] In one embodiment of this utility model, the seat is pivotally connected to the mounting base, so that the seat body has a forward position and a rearward position; the rotational position of the seat body relative to the mounting base is locked by a second locking mechanism.

[0023] In another aspect, this utility model provides a base for a child safety seat, comprising: a base housing including a base and an abutment portion; a first upper limit member protruding forward from the abutment portion, the first upper limit member being capable of applying a rearward pulling force to a seat body mounted on the base; a support ring extending from the rear side of the first upper limit member; and a top strap, the first end of the top strap being positioned below the support ring, and the second end of the top strap extending upward such that the middle portion of the top strap passes over the support ring.

[0024] In one embodiment of the present invention, a support frame is provided inside the base housing, and the first upper limit member is connected to the support frame.

[0025] In one embodiment of the present invention, the top of the abutment portion is provided with a first opening; the support frame is slidably engaged with the base housing, the upper end of the support frame extends out from the first opening, and the first upper limit member is connected to the upper end of the support frame.

[0026] In another aspect, this utility model provides a child safety seat, comprising: a base, including a base housing and a support frame housed within the base housing; a seat body, the seat body being mounted on the base and having a forward position and a rearward position relative to the base; and at least one limiting structure disposed between the seat body and the support frame. The base housing has an opening for the limiting structure to pass through, and the at least one limiting structure includes an upper limiting structure and a lower limiting structure; the upper limiting structure includes a first upper limiting member and a second upper limiting member, the first upper limiting member being disposed at the upper end of the support frame and exposed outside the opening, and the second upper limiting member being disposed on the back of the seat body. When the seat body is in the forward position, the seat body and the support frame are engaged by the upper limiting structure, and the lower limiting structure is in a separated state; when the seat body is in the rearward position, the seat body and the support frame are engaged by the lower limiting structure, and the upper limiting structure is in a separated state.

[0027] In one embodiment of the present invention, the child safety seat further includes a top strap, a first end of which is connected to the first upper limit member, and a second end of which is provided with an anchor for connecting to the vehicle.

[0028] In one embodiment of the present invention, the first upper limit member is provided with a support ring, and the first end of the top strap is connected to the support frame and passes around the support ring.

[0029] In one embodiment of this utility model, the child safety seat further includes a mounting base, through which the seat body is mounted on the support frame. The support frame is configured to be operably slidable relative to the base housing to change the tilt angle of the seat body relative to the base housing. The opening includes a first opening at the top of the base housing, through which the upper end of the support frame extends, exposing the first upper limit member outside the base housing. When the support frame slides relative to the base housing, the first upper limit member and the second upper limit member remain connected.

[0030] In one embodiment of this utility model, the seat body has a pivot shaft, and the seat body is pivotally connected to the mounting base via the pivot shaft, thereby rotating between the forward position and the rearward position. The lower limit structure includes a first lower limit member and a second lower limit member. The first lower limit member extends from the support frame through the mounting base to the seat body, and the second lower limit member is configured to protrude from the front side of the seat body. When the seat body is in the rearward position relative to the base, the first lower limit member and the second lower limit member cooperate.

[0031] In one embodiment of this utility model, a sliding track is provided inside the base housing, and the support frame slides in conjunction with the sliding track. The sliding track is provided with a plurality of first locking holes; the support frame is provided with a first locking mechanism, the first locking mechanism including a first locking member; the first locking member selectively engages with one of the plurality of first locking holes to position the support frame at different positions on the sliding track.

[0032] In one embodiment of this utility model, the child safety seat further includes: a first locking mechanism for locking the sliding between the support frame and the base housing. The first locking mechanism includes: a first locking member disposed within the mounting base and slidably engaging with a guide hole on the support frame; a plurality of first locking holes disposed on the base housing; and a return spring disposed between the mounting base and the first locking member for pushing the first locking member to engage with the first locking holes. The first locking member passes through the guide hole and selectively connects to one of the plurality of first locking holes, thereby positioning the support frame at multiple different positions on the base housing.

[0033] In one embodiment of this utility model, the first locking mechanism further includes: a first release member disposed at a handle at the front end of the mounting base; and a first traction rope, one end of which is connected to the first release member and the other end of which is connected to the first locking member. The first release member drives the first locking member to exit from the corresponding first keyhole via the first traction rope.

[0034] In one embodiment of this utility model, the child safety seat further includes: a second locking mechanism for locking the pivoting between the seat body and the mounting seat. The second locking mechanism is located between the seat body and the mounting seat and includes: a second locking member disposed on the seat body and axially movable relative to the seat body; and a plurality of second locking holes spaced apart on the mounting seat. The second locking member is selectively connected to one of the plurality of second locking holes, thereby locking the seat body in a forward position or a rearward position.

[0035] In one embodiment of this utility model, the base housing includes a base and an abutment extending upward from the base, the abutment being used to abut against the backrest of a vehicle seat. The seat body is pivotally mounted to the base via the mounting seat. A first opening is provided at the top of the abutment, the abutment being provided with a clamping groove and a clamping device. The first end of the clamping device is pivotally connected to the base housing, and the second end of the clamping device is provided with a third locking mechanism. The clamping device is locked in the clamping groove by the third locking mechanism to clamp the vehicle seat belt at the abutment.

[0036] The child safety seat according to this utility model can prevent the seat body from tilting forward relative to the base when the vehicle brakes unexpectedly, which may injure the child and effectively protect the child's safety while riding in the car. Attached Figure Description

[0037] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0038] Figure 1 A perspective view of a child safety seat according to a first embodiment of the present invention is shown;

[0039] Figure 2 and Figure 3 It shows Figure 1 The child safety seat shown is viewed from the front and rear positions.

[0040] Figure 4 and Figure 5 It shows Figure 1 The diagram shows an incomplete exploded view of a child safety seat from different angles.

[0041] Figure 6 It shows Figure 2 CC section view;

[0042] Figure 7 It shows Figure 4 and Figure 5 A perspective view of the mounting base;

[0043] Figure 8 It shows Figure 7 An exploded view of the mounting bracket shown;

[0044] Figure 9 It shows Figure 4 and Figure 5 Another perspective view of the mounting bracket;

[0045] Figure 10 It shows Figure 9 An exploded view of the mounting bracket shown;

[0046] Figure 11 It shows Figure 1 The diagram shows the support frame of the child safety seat and a 3D view of the child seat itself.

[0047] Figure 12 It shows Figure 1 The diagram shows the structure for installing a child safety seat onto a vehicle seat.

[0048] Figure 13 It shows Figure 1 The internal structure of the base of the child safety seat shown;

[0049] Figure 14 It shows Figure 1 A portion of the base of a child safety seat and a 3D view of the child seat are shown.

[0050] Figure 15 It shows Figure 11 A three-dimensional view of the supporting frame in the middle;

[0051] Figure 16 It shows Figure 10 The internal structure of the mounting base;

[0052] Figure 17 and 18 It shows Figure 1 The cross-sectional view of the child safety seat shown illustrates the structure of the first locking mechanism;

[0053] Figure 19 and Figure 20 It shows Figure 11 The support frame of the child safety seat and a side view of the child seat are shown.

[0054] Figure 21 It shows Figure 1 The cross-sectional view of the child safety seat shown illustrates the structure of the second locking mechanism;

[0055] Figure 22 It shows Figure 1 The structure of the base and second locking mechanism of the child safety seat shown;

[0056] Figure 23 A perspective view of a child safety seat according to a second embodiment of the present invention is shown;

[0057] Figure 24 and Figure 25 It shows Figure 23 The child safety seat shown is viewed from the front and rear positions.

[0058] Figure 26 and Figure 27 It shows Figure 23 The images shown are 3D views of the base of a child safety seat from different perspectives, with the clamp in different positions.

[0059] Figure 28 and Figure 29 It shows Figure 27 The internal structure of the base is shown, with the clamp in different states;

[0060] Figure 30 It shows Figure 29 The rear view of the base shown. Figure 30 The middle part is omitted Figure 29 The rear housing in the middle;

[0061] Figure 31 It shows Figure 23Side view of a child seat in a car;

[0062] Figure 32 It shows Figure 31 An incomplete exploded view of the child car seat is shown.

[0063] Figure 33 It shows Figure 31 The internal structure of the child seat shown; and

[0064] Figure 34 and Figure 35 It shows Figure 32 Three-dimensional images of the bottom shell from different perspectives. Detailed Implementation

[0065] First Embodiment

[0066] See Figure 1 This image shows a perspective view of a child safety seat 1000 according to a first embodiment of the present invention. Figure 2 and Figure 3 The image shows a side view of the child safety seat 1000 in different operating positions. The child safety seat 1000 includes a base 1 and a seat body 2. The base 1 is used for mounting on a vehicle seat 900 (see [link]). Figure 12 The seat body 2 is detachably or non-detachably mounted to the base 1, and the seat body 2 is used for children to sit on. In some embodiments, the tilt angle of the seat body 2 relative to the base 1 can be adjusted to meet the sitting needs of children. In some embodiments, the seat body 2 can pivot relative to the base 1 so that the seat body 2 can have multiple working positions. The multiple working positions include at least two of, for example, a forward position, a rearward position, and a lateral position.

[0067] It should be noted that, in this embodiment, for the child safety seat 1000 with multiple working positions on the seat body 2, the directional terms such as "front," "rear," "left," and "right" of the seat body 2 are based on the "front," "rear," "left," and "right" positions of the child sitting in the seat body 2. The directional terms such as "front," "rear," "left," and "right" of the base 1 are referenced when the base 1 is installed on the vehicle seat 900 (see [link]). Figure 12 The terms refer to the "front," "rear," "left," and "right" positions of the vehicle. These directional terms are used only to make the description of the embodiments of this utility model clearer and are not intended to unduly limit the scope of protection of this utility model. Specifically, Figure 2 The seat body 2 is in a forward-facing position relative to the base 1. At this time, the front-back, left-right, and right-side positions of the seat body 2 are the same as those of the base 1. Figure 1 and Figure 2Arrows F and B are used to indicate the "front" and "back" directions of base 1, and arrows L and R are used to indicate the "left" and "right" directions of base 1. Figure 3 The seat body 2 is in a rearward position relative to the base 1. At this time, the front-back, left-right and right positions of the seat body 2 are opposite to those of the base 1.

[0068] The structure of the base 1 and the seat body 2 will be described in detail below.

[0069] See Figure 3 , Figure 4 and Figure 12 The base 1 includes a base housing 10, a support frame 19, and a mounting base 13. The base housing 10 may include a base 11 and an abutment portion 12 extending upward from the base 11. The base 11 is used to abut against or rest on the seat surface 91 of the vehicle seat 900, and the abutment portion 12 is used to abut against the backrest 92 of the vehicle seat 900. In some embodiments, the base housing 10 may include a plurality of rigid shells that define the external shape of the base housing 10, and the plurality of rigid shells define the internal space of the base housing 10. See also Figure 1 The multiple rigid housings include, for example, an upper housing 1011 and a lower housing 1012 generally corresponding to the base 11, and a front housing 1021 and a rear housing 1022 generally corresponding to the abutment portion 12. The upper housing 1011 and the front housing 1021 correspond to the front side of the base housing 10, and the lower housing 1012 and the rear housing 1022 correspond to the back side of the base housing 10. Of course, in other embodiments, the base housing 10 may also have other implementations.

[0070] See Figure 12 In some embodiments, the front side of the base housing 10 may be provided with a clamping groove 1201 and a belt clamp 129, and the belt clamp 129 may be locked into the clamping groove 1201 by a third locking mechanism 215. In some embodiments, when the belt clamp 129 is locked into the clamping groove 1201, the belt clamp 129 may be fully embedded in the clamping groove 1201 without protruding relative to the front side of the base housing 10. A clamping device for the vehicle seat belt 93 is formed between the wall of the clamping groove 1201 and the belt clamp 129. Figure 12 The passage of the vehicle seat belt 93 (not shown in the figure) is shown in dashed lines. After the vehicle seat belt 93 passes through the passage between the wall of the clamping slot 1201 and the belt holder 129, the male buckle of the vehicle seat belt 93 engages with the female buckle on the vehicle seat 900, securing the abutment portion 12 of the base 1 to the seat back 92. Although in Figure 12In the illustrated embodiment, the shoulder strap 931 and lap belt 932 of the vehicle seat belt 93 pass through the channel between the wall of the clamping groove 1201 and the belt clamp 129 simultaneously. However, in some alternative embodiments, only the shoulder strap 931 or the lap belt 932 of the vehicle seat belt 93 may pass through the channel between the wall of the clamping groove 1201 and the belt clamp 129.

[0071] Figure 13 The upper housing 1011 is omitted from the base housing 10 shown to facilitate the illustration of the internal structure of the base housing 10. In some embodiments, the first end of the strap clamp 129 is pivotally connected to the bottom housing 10 via a shaft 125, and a third locking mechanism 215 is disposed at the second end of the strap clamp 129. The third locking mechanism 215 is used to lock the relative position of the second end of the strap clamp 129 with respect to the base housing 10, thereby locking the strap clamp 129 in the clamping groove 1201. Exemplary embodiments of the third locking mechanism 215 can be found, for example, in the description of the third locking mechanism 215 in the second embodiment below. For example, the third locking mechanism 215 may include an axially movable third locking member for engaging with a third locking hole on the base housing 10. When the third locking member is disengaged from the third locking hole, the strap clamp 129 can pivot about the shaft 125 to open the clamping groove 1201 to allow the vehicle seat belt 93 to be placed into or removed from the clamping groove 1201.

[0072] The support frame 19 is mounted on the base housing 10 and is slidable relative to the base housing 10. See also Figure 11 The mounting base 13 is installed onto the support frame 19 and slides synchronously with the support frame 19. The seat body 2 is installed onto the mounting base 13, and then onto the support frame 19. That is, the mounting base 13 is located between the base 1 and the seat body 2. Thus, when the support frame 19 slides relative to the base housing 10, the mounting base 13 and the seat body 2 slide together relative to the base housing 10, thereby changing the tilt angle of the seat body 2 relative to the base 1. It can be understood that when the support frame 19 slides relative to the base housing 10, the support frame 19 moves back and forth relative to the base housing 10 while also pivoting relative to the base housing 10, thereby causing a change in the tilt angle of the seat body 2 relative to the base 1. In some embodiments, the support frame 19 is, for example, mainly composed of multiple metal tubes connected by welding, screwing, etc., and the support frame 19 has sufficient structural strength.

[0073] See Figure 13 and Figure 14 In some embodiments, a sliding track 101 is provided inside the base housing 10, the sliding track 101 extending at least in the base 11, and the support frame 19 slides in conjunction with the sliding track 101. In some embodiments, the sliding track 101 extends in the abutment portion 12. Figure 13The upper housing 1011 is omitted from the base housing 10 shown, thus showing a partial structure of the sliding track 101, a portion of which is located inside the abutment 12 and is covered by the front housing 1021. Figure 14 The upper housing 1011 is also omitted in the child safety seat 1000 shown, thus illustrating the structure in which the support frame 19 slides into the sliding rail 101. The support frame 19 also serves to enhance the structural strength of the base housing 10.

[0074] See you again Figure 4 , Figure 12 and Figure 13 In some embodiments, the top of the abutment portion 12 of the base housing 10 has a first opening 1203, and the upper end of the support frame 19 extends from the first opening 1203. In some embodiments, a first upper limit member 311 is mounted on the upper end of the support frame 19, the structure of which will be described in detail below. (See reference...) Figures 4 to 12 In some embodiments, a decorative shell 195 may be installed on the upper end of the support frame 19. The decorative shell 195 slides with the first opening 1203, thereby closing the first opening 1203. In addition, the decorative shell 195 covers up any unnecessary exposed structures at the upper end of the support frame 19.

[0075] Figure 15 An exemplary structure of the support frame 19 is shown. The support frame 19 includes two longitudinal bars 191 and a plurality of crossbars connecting the two longitudinal bars 191. The plurality of crossbars includes, but is not limited to, a first crossbar 192 and a second crossbar 193. The support frame 19 is primarily slidably engaged with the sliding track 101 via the two longitudinal bars 191. See also... Figure 13 and Figure 14 In some embodiments, at least a portion of the sliding track 101 may be defined by the upper housing 1011 and the lower housing 1012, as well as the front housing 1021 and the rear housing 1022.

[0076] In some embodiments, at least a portion of the sliding track 101 may be formed by an attachment 1013 located inside the base housing 10, the attachment 1013 having a groove 10130, and the longitudinal rod 191 slidingly engaging with the groove 10130. That is, the groove 10130 forms a portion of the sliding track 101. In some embodiments, an elongated hole 10131 may be provided on the groove wall of the groove 10130, and a pin 1916 may be mounted on the longitudinal rod 191, the pin 1916 slidingly engaging with the elongated hole 10131 to limit the sliding stroke of the support frame 19. In some embodiments, the attachment 1013 is mounted on the lower housing 1012 by fasteners, and the opening of the groove 10130 is closed by the lower housing 1012.

[0077] See also Figure 15 In some embodiments, each longitudinal bar 191 may be formed by connecting multiple bar segments, which can reduce the manufacturing difficulty of the longitudinal bar 191. Each longitudinal bar 191 includes, for example, a first bar segment 1911, a second bar segment 1912, and a third bar segment 1913.

[0078] Each first segment 1911 extends from the interior of the base 11 to the interior of the abutment 12. The two first segments 1911 of the two longitudinal bars 191 are generally parallel. In some embodiments, each first segment 1911 has an arcuate segment 19111, and the sliding track 101 also has an arcuate track (not labeled) that slides with the arcuate segment 19111. The arcuate segment 19111 is located, for example, at the front end of the first segment 1911, corresponding to the sliding track in the base 11. The rear end of the first segment 1911 has, for example, a straight segment 19112 that extends within the abutment 12. The first end of the second segment 1912 is inserted into the straight segment 19112, and the second end of the second segment 1912 extends toward the top of the abutment 12.

[0079] In some embodiments, each second segment 1912 has a tortuous shape, such that the distance between the second ends 19122 of the two second segments 1912 of the two longitudinal bars 191 is reduced relative to the distance between their first ends. The first end 19131 of each third segment 1913 is directly or indirectly connected to the second end of the corresponding second segment 1912, and the second end 19132 of each third segment 1913 extends from the first opening 1203. The first upper limit member 311 is connected to the second ends of the two third segments 1912, for example, by welding or fasteners.

[0080] In some embodiments, the longitudinal bars 191 may also have other implementations. For example, the second end of each second bar segment 1912 may extend directly from the first opening 1203, and the first upper limit member 311 may be connected to the second end of each second bar segment 1912, thus omitting the third bar segment 1913. Alternatively, in some embodiments, each longitudinal bar 191 may be a one-piece rod.

[0081] See you again Figures 4 to 12 This illustrates an exemplary structure of the mounting base 13 and an exemplary connection between the mounting base 13 and the support frame 19. In some embodiments, the left-right, forward-backward, and up-down movements of the mounting base 13 relative to the support frame 19 are restricted. In some embodiments, the rotation of the mounting base 13 relative to the support frame 19 is restricted. The restriction of rotation of the mounting base 13 relative to the support frame 19 can also be considered as the mounting base 13 being non-rotatably connected to the base housing 10; that is, the mounting base 13 does not switch the seat body 2 to a forward or rearward position by rotating itself relative to the base housing 10.

[0082] See Figures 4 to 10 In some embodiments, the mounting base 13 includes an upper housing 1301 and a lower housing 1302, which can be connected, for example, by fasteners (not shown). The upper housing 1301 and the lower housing 1302 may define stepped pivot holes, the details of which can be found in the description of the center hole 130 below.

[0083] See Figure 4 and Figure 12 The base 11 has a second opening 110 on its front side, and the mounting base 13 covers the second opening 110. In some embodiments, the mounting base 13 is sized such that, as the mounting base 13 slides relative to the base housing 10 following the support frame 19, it remains covering the periphery of the second opening 110, thus minimizing exposure of the second opening 110. See also Figure 9 In some embodiments, the mounting base 13 includes a cover portion 13a covering the second opening 110 and a snap-fit ​​portion 13b extending downward from the cover portion 13a, the size of the snap-fit ​​portion 13b being smaller than that of the cover portion 13a.

[0084] See Figure 11 In some embodiments, the support frame 19 includes two first crossbars 192, and the two first crossbars 192 and two longitudinal bars 191 form a space through which the latching portion 13b of the mounting base 13 passes. In some embodiments, the two first crossbars 192 engage with the latching portion 13b to restrict the mounting base 13 from moving back and forth relative to the mounting base of the support frame 19.

[0085] In some embodiments, the engagement of the latching portion 13b with the two first crossbars 192 can also restrict the rotation of the mounting base 13 relative to the support frame 19. For example, the surfaces of the latching portion 13b used for engaging with the two first crossbars 192 can be designed as planes, and the engagement of the latching portion 13b with the two first crossbars 192 can restrict the rotation of the mounting base 13 relative to the support frame 19. Of course, there are many other ways to restrict the rotation of the mounting base 13 relative to the support frame 19, such as connecting the mounting base 13 and the support frame 19 together with multiple fasteners, which can be distributed on the two first crossbars 192.

[0086] In some embodiments, the engaging portion 13b can be clamped between the two longitudinal bars 191, thereby restricting the lateral movement of the mounting base 13 relative to the support frame 19. Of course, there are many ways to restrict the lateral movement of the limiting seat 1303 relative to the support frame 19. For example, in some embodiments, two additional longitudinal bars parallel to the longitudinal bars 191 are connected between the two first transverse bars 192, and the two additional longitudinal bars engage with the engaging portion 13b to restrict the lateral movement of the mounting base 13 relative to the support frame 19. Alternatively, in some embodiments, the mounting base 13 can be directly or indirectly connected to the axial limiting mechanism 6, which can be clamped between the two longitudinal bars 191 to restrict the lateral movement of the mounting base 13 relative to the support frame 19. Furthermore, the axial limiting mechanism 6 can cooperate with the engaging portion 13b to form a slot 1304, and the two first transverse bars 192 engage with the slot 1304, which can restrict the forward and backward movement of the mounting base 13 relative to the support frame 19, and also restrict the vertical movement of the mounting base 13 relative to the support frame 19.

[0087] In some embodiments, see Figure 4 , Figure 11 and Figure 15 The support frame 19 can also be connected to the mounting base 13 via a fixing seat 196. The connection between the fixing seat 196 and the support frame 19 and the mounting base 13 can further restrict the relative movement and / or relative rotation between the support frame 19 and the mounting base 13.

[0088] like Figure 4 and Figure 15 The diagram illustrates an exemplary structure of a mounting base 196. The mounting base 196 may include a plate 1961 and an arm 1962 extending from the plate 1961. The plate 1961 abuts against a mounting base 13. Holes 19610 and 13010 are respectively provided on the plate 1961 and the mounting base 13 (more specifically, the lower housing 1302), and the mounting base 13 and the support frame 19 can be connected by fasteners passing through the holes 19610 and 13010. The arm 1962 has a hole 19620 that fits onto a second crossbar 193 located between two longitudinal bars 191. The second crossbar 193 is closer to the abutment portion 12 relative to the first crossbar 192. In some embodiments, the hole 19620 is a non-circular hole so that the arm 1962 is fitted onto the second crossbar 193 without relative rotation. In some embodiments, the front side of the base housing 10 may also be provided with a guide groove 106 that communicates with the second opening 110 and slides in cooperation with the arm body 1962.

[0089] See Figure 11 and Figure 16In some embodiments, a handle 136 may be provided on the front side of the mounting base 13, which can be operated to push the support frame 19 to slide relative to the base housing 10. In some embodiments, the handle 136 protrudes outward from the front side of the mounting base 13.

[0090] See Figures 16 to 18 The sliding position of the support frame 19 relative to the base housing 10 can be locked by the first locking mechanism 131. Figures 16 to 18 An example configuration of the first locking mechanism 131 is shown. The first locking mechanism 131 is mounted to the mounting base 13. Figure 16 The mounting base 13 shown omits the upper housing 1301 to facilitate the illustration of the structure of the first locking mechanism 131.

[0091] The first locking mechanism 131 includes an axially movable first locking member 1311. A plurality of first locking holes 1310 are provided on the base housing 10 (more specifically, the base 11), and these holes are spaced apart along the sliding direction of the support frame 19. The first locking member 1311 selectively connects to one of the plurality of first locking holes 1310, thereby positioning the support frame 19 in different sliding positions, and consequently positioning the seat body 2 at different tilt angles relative to the base 1. See also Figure 13 Multiple first locking holes 1310 can be provided on the sliding rail 101 of the support frame 19. More specifically, multiple first locking holes 1310 are provided on the sliding rail 101 of the first segment 1911 of each longitudinal rod 191.

[0092] See Figure 7 , Figure 8 and Figure 17 In some embodiments, each first locking hole 1310 is disposed in the lower housing 1012. Each first locking hole 1310 forms an angle with the horizontal plane. See also Figure 16 The first locking mechanism 131 also includes a first release member 1312, which can be mounted on the front side of the mounting base 13. More specifically, the handle 136 can be connected to the mounting base 13 via a fastener (not shown) passing through a hole 13011 in the mounting base 13, and the first release member 1312 can be mounted on the handle 136. The first release member 1312 is connected via a first traction rope 1313 ( Figure 16 (shown in dashed line) is connected to the first locking member 1311. The first end of the first locking member 1311 is inside the mounting base 13 and abuts against the first return spring 1314. The first return spring 1314 is used to push the first locking member 1311 so that the second end of the first locking member 1311 engages with the corresponding first lock hole 1310.

[0093] like Figure 16As shown, the first release element 1312 is disposed on the handle 136, which is located on the front side of the mounting base 13. As explained above, when the seat body 2 rotates forward or backward, the mounting base 13 does not rotate with the seat body 2, and the handle 136 always faces forward. This allows for convenient adjustment of the tilt angle of the seat body 2 relative to the base 1, even when the seat body 2 is adjusted to a forward or backward position. This avoids the problem in related technologies where the first release element is located on the lower front side of the seat body, making it difficult to adjust the tilt angle of the seat body relative to the base when the seat body is rotated to a backward position due to the limited operating space of the first release element as the front side of the seat body is close to or abuts against the abutment part.

[0094] See figure Figure 17 and Figure 18 When it is necessary to adjust the sliding position of the support frame 19, press the first release member 1312 while holding the handle 136. The first release member 1312 pulls the first locking member 1311 through the first traction rope 1313, and the second end of the first locking member 1311 disengages from the first lock hole 1310. Then, pull or push the handle 136 to adjust the seat body 2 to a suitable tilt angle, and release the first release member 1312. The first locking member 1311 then engages with the corresponding first lock hole 1310 under the push of the first return spring 1314, positioning the seat body 2 at the adjusted tilt angle.

[0095] Depend on Figures 16 to 18 As can be seen from the above, in some embodiments, a guide wheel 1103 may be provided in the mounting base 13, the guide wheel 1103 is close to the first locking member 1311, and the first traction rope 1313 is connected to the first locking member 1311 after passing through the guide wheel 1103.

[0096] In some embodiments, the longitudinal rod 191 of the support frame 19 is provided with a guide hole 190, and the first locking member 1311 is slidably engaged with the guide hole 190.

[0097] See Figure 19 and Figure 20 The seat body 2 includes a seat portion 21 and a backrest portion 22 extending upward from the seat portion 21, on which a headrest 23 can be mounted. The seat portion 21 is rotatably mounted to a mounting base 13, allowing the seat body 2 to pivot relative to the base 1, thereby providing multiple working positions. For ease of understanding, Figure 19 and Figure 20 The base shell 10 of the base 1 is omitted.

[0098] See you again Figure 4 and Figure 6In some embodiments, the seat 21 and the mounting base 13 are rotatably connected relative to each other. In some embodiments, the seat 21 includes, for example, a pivot shaft 210, and the mounting base 13 has a central bore 130 (also referred to above as a stepped pivot bore), which may be defined by an upper housing 1301 and a lower housing 1302. The pivot shaft 210 is pivotally received in the central bore 130.

[0099] See also Figure 6 In some embodiments, the aforementioned axial limiting mechanism 6 is mounted on the seat 21. In some embodiments, the axial limiting mechanism 6 may include a sleeve portion 6a and a limiting flange 6b. The sleeve portion 6a may be sleeved on the rotating shaft 210 and pivotally connected to the central hole 130. The limiting flange 6b is located below the two first crossbars 192 and may abut against the two first crossbars 192.

[0100] See you again Figure 2 and Figure 3 In some embodiments, the child safety seat 1000 may also include at least one limiting structure 3. The seat body 2 and the support frame 19 may be connected by at least one limiting structure 3, which is used to apply a pulling force to the seat body 2 to prevent the seat body 2 from tilting forward relative to the base 1 and potentially injuring the child when the vehicle brakes unexpectedly.

[0101] See Figure 2 In some embodiments, the limiting structure 3 includes an upper limit structure 32. When the seat body 2 is in the forward position and the vehicle suddenly brakes, the backrest 22 of the seat body 2 and the support frame 19 are engaged by the upper limit structure 31. The upper limit structure 31 pulls the backrest 22 of the seat body 2, which can effectively prevent the seat body 2 from tilting forward relative to the base 1.

[0102] See also Figure 2 In some embodiments, the upper limit structure 32 includes a first upper limit member 311 and a second upper limit member 312. As previously described, the first upper limit member 311 may be disposed at the upper end of the support frame 19 extending from the abutment portion 12. See also Figure 11 The second upper limit member 312 can be disposed on the back of the backrest 22. When the seat body 2 is in the forward position, the first upper limit member 311 and the second upper limit member 312 cooperate, for example, with a clearance fit. It should be noted that when the seat body 2 is in the forward position, the first upper limit member 311 and the second upper limit member 312 do not necessarily need to maintain a constant contact with each other. The first upper limit member 311 and the second upper limit member 312 only need to contact each other when the seat body 2 is tilted forward relative to the base 1, thereby applying a backward pulling force to the backrest 22 of the seat body 2.

[0103] See also Figure 2 In some embodiments, the first upper limit member 311 and the second upper limit member 312 may have a hook-shaped cross-section and hook together. In some embodiments, the first upper limit member 311 and the second upper limit member 312 may both extend along an arc, so that they have sufficient contact area without interfering with the rotation of the seat body 2 relative to the base 1. Of course, the first upper limit member 311 and the second upper limit member 312 may have other implementations and are not limited to the examples above.

[0104] refer to Figure 19 and Figure 21 In some embodiments, the child safety seat 1000 may further include a top strap 4. A first end 41 of the top strap 4 is connected to a suitable structure of the base 1, and a second end 42 of the top strap 4 may be provided with an anchor 43, for example, for connection to an anchor point on the back of the vehicle seat 900. In some embodiments, the first end 41 of the top strap 4 may extend into and be secured within the base housing 10. More specifically, the first end 41 of the top strap 4 may be connected to a fastener 114. In some embodiments, the fastener 114 may be, but is not limited to, fixed to a support frame 19. The top strap 4 may also be provided with an adjuster 45 for adjusting the length of the top strap 4.

[0105] Reference Figure 15 and Figure 21 In some embodiments, a support ring 315 is provided on the first upper limit member 311, and the second end 42 of the top strap 4 passes through the support ring 315 when it extends upward. That is, the middle part of the top strap 4 wraps around the support ring 315. When the vehicle brakes suddenly, the first upper limit member 311 is tightened by the second upper limit member 312 and the top strap 4. In this way, the forward tilting force of the seat body 2 can be transmitted to the vehicle seat 900 through the upper limit structure 31 and the top strap 4. In addition, the first upper limit member 311 is simultaneously subjected to two opposing tensions, which can cancel each other out and effectively prevent damage to the first upper limit member 311.

[0106] In some embodiments, the first upper limit member 311 may include a plate 3111 and a hook 3112 extending forward from the upper end of the plate 3111, and a support ring 315 may extend from the rear side of the plate 3111.

[0107] See Figure 3In some embodiments, the limiting structure 3 may also include a lower limiting structure 32. When the seat body 2 is in the rearward position and the vehicle suddenly brakes, the seat part 21 of the seat body 2 and the support frame 19 are engaged by the lower limiting structure 32. The lower limiting structure 32 pulls the seat part 21 of the child seat, which can effectively prevent the seat body 2 from tilting forward relative to the base 1.

[0108] See also Figure 3 In some embodiments, the lower limiting structure 32 includes a first lower limiting member 321 and a second lower limiting member 322. The first lower limiting member 321 may extend from the support frame 19 toward the seat portion 21. The first lower limiting member 321 passes through the mounting base 13. The second lower limiting member 322 may be configured to protrude from the back of the seat portion 21. For example, the second lower limiting member 322 is located on the front side of the back of the seat portion 21. When the seat body 2 is in the rearward position, the first lower limiting member 321 and the second lower limiting member 322 engage, for example, with a clearance fit. It should be noted that when the seat body 2 is in the rearward position, the first lower limiting member 321 and the second lower limiting member 322 do not necessarily need to maintain a constant contact with each other. The first lower limiting member 321 and the second lower limiting member 322 only need to engage with each other when the seat body 2 is tilted forward relative to the base 1, applying a rearward pulling force to the seat portion 21 of the seat body 2.

[0109] See Figure 4 In some embodiments, at least one of the first lower limiting member 321 and the second lower limiting member 322 has a hook-shaped cross-section, and the two hook together. In some embodiments, the first lower limiting member 321 may include one, two, or more hook-shaped elements extending upward from the fixing base 196, and the second lower limiting member 322 may extend along an arc and have a hook-shaped cross-section. Of course, the implementation of the first lower limiting member 321 and the second lower limiting member 322 is not limited to the examples described above.

[0110] See Figure 21 and Figure 22 The rotational position of the seat body 2 relative to the mounting base 13 can be locked by the second locking mechanism 213. Figure 21 and Figure 22 An example structure of the second locking mechanism 213 is shown. The second locking mechanism 213 is mounted on the seat portion 21 of the seat body 2. Figure 22 Part of the housing of the seat body 2 is omitted to facilitate the illustration of the structure of the second locking mechanism 213.

[0111] See Figure 21The second locking mechanism 213 includes an axially movable second locking member 2131. The mounting base 13 is provided with a plurality of second locking holes 2130 corresponding to the position of the second locking member 2131. The plurality of second locking holes 2130 are spaced apart along the rotation direction of the seat body 2. The second locking member 2131 is selectively connected to one of the plurality of second locking holes 2130, thereby positioning the seat body 2 in different working positions.

[0112] Reference Figure 1 , Figure 21 and Figure 22 The second locking mechanism 213 also includes a second release member 2132, which can be installed on the armrests on both sides of the seat 21. The second release member 2132 is connected by a second traction rope 2133 ( Figure 21 (shown in dashed line) is connected to the second locking member 2131. The first end of the second locking member 2131 is inside the seat portion 21 and abuts against the second return spring 2134. The second return spring 2134 is used to push the second locking member 2131 so that the second end of the second locking member 2131 engages with the corresponding second lock hole 2130.

[0113] When the orientation of the seat body 2 needs to be adjusted, press the second release member 2132. The second release member 2132 pulls the second locking member 2131 through the second traction rope 2133, and the second end of the second locking member 2131 disengages from the second locking hole 2130. Then rotate the seat body 2. When the seat body 2 is rotated to the appropriate orientation, release the second release member 2132. The second locking member 2131 then engages with the corresponding second locking hole 2130 under the push of the second return spring 2134.

[0114] The child safety seat 1000 provided in the first embodiment of this utility model has a support frame 19 connected to a mounting base 13, and a seat body 2 mounted on the mounting base 13, so that the seat body 2, the mounting base 13, and the support frame 19 move synchronously. When adjusting the tilt angle of the seat body 2 relative to the base 1 in the forward position, the first upper limit member 311 and the second upper limit member 312 of the upper limit structure 31 move synchronously and can always be connected together. Similarly, when adjusting the tilt angle of the seat body 2 relative to the base 1 in the rearward position, the first lower limit member 321 and the second lower limit member 322 of the lower limit structure 32 move synchronously and can always be connected together.

[0115] In addition, in some embodiments not shown, for example, the child safety seat 1000 provided in the first embodiment of the present invention can be modified as follows:

[0116] 1. In some embodiments, the seat body 2 cannot rotate relative to the base 1; that is, the seat body 2 has only one of a forward position and a rearward position. Accordingly, the child safety seat may be equipped with only one of the first upper limit member 321 and the second lower limit member 322.

[0117] 2. In some embodiments, the child safety seat 1000 may omit the mounting base 13, and instead the seat part 21 of the seat body 2 may be directly fixedly connected to the support frame 19 of the base 1.

[0118] Third, in some embodiments, the mounting base 13 can be connected to the turntable via a rotation mechanism, and the seat body 2 can be detachably connected to the turntable. For example, the seat portion 21 of the seat body 2 can be detachably snapped into the turntable. It is understood that the seat body 2 can rotate to a forward position, a rearward position, etc., with the turntable.

[0119] Second Embodiment

[0120] See Figure 23 A perspective view of a child safety seat 1000 according to a second embodiment of the present invention is shown. Figure 24 and Figure 25 The image shows a side view of the child safety seat 1000 in different operating states. The child safety seat 1000 includes a base 1 and a seat body 2. The base 1 is for mounting on a vehicle seat, and the seat body 2 is mounted on the base 1 in a detachable or non-detachable manner. The seat body 2 is used for children to ride in.

[0121] The orientation of the seat body 2 and the base 1 in this embodiment can be referred to the explanation in the first embodiment, and will not be repeated here. The structure of the base 1 and the seat body 2 will be described in detail below.

[0122] See Figures 26 to 29 The base 1 includes a base housing 10 and a support frame 19. The base housing 10 may include a base 11 and an abutment portion 12 extending upward from the base 11. The base 11 is for resting on the seat surface of a vehicle seat, and the abutment portion is for abutting against the backrest of the vehicle seat. In some embodiments, the base housing 10 may include a plurality of rigid shells that define the external shape of the base housing 10, and the plurality of rigid shells define the internal space of the base housing 10. See also Figure 27 The multiple rigid housings include, for example, an upper housing 1011 and a lower housing 1012 generally corresponding to the base 11, and a front housing 1021 and a rear housing 1022 generally corresponding to the abutment portion 12. The upper housing 1011 and the front housing 1021 correspond to the front side of the base housing 10, and the lower housing 1012 and the rear housing 1022 correspond to the back side of the base housing 10. Of course, in other embodiments, the base housing 10 may also have other implementations.

[0123] See Figure 27 In some embodiments, a mounting base 13 is mounted on the front of the base 11. Unlike the first embodiment described above, the mounting base 13 in this second embodiment cannot slide back and forth relative to the base housing 10. The seat portion 21 of the seat body 2 is mounted on the mounting base 13.

[0124] In some embodiments, the mounting base 13 is detachably connected to the seat portion 21 of the seat body 2, and the mounting base 13 itself is not rotatable. In some embodiments, by changing the mounting orientation of the seat body 2 on the mounting base 13, the seat body 2 can have multiple working positions. The multiple working positions include, for example, a forward position and a rearward position.

[0125] In some embodiments, the mounting base 13 may be pivotally connected to the base 11 via any suitable rotary mechanism (not shown). Thus, the seat body 2 may have multiple working positions as the mounting base 13 rotates. These multiple working positions include, for example, at least two of a forward position, a rearward position, and a lateral position.

[0126] In some embodiments, the rotational position of the mounting base 13 relative to the base 1 can be locked by a fourth locking mechanism. In some embodiments, the fourth locking mechanism is installed inside the mounting base 13, for example. The fourth locking mechanism may include a fourth release member 134, an axially movable fourth locking member (not shown), a fourth return spring (not shown) abutting against the fourth locking member, and a fourth traction rope (not shown) connecting the fourth release member 134 and the fourth locking member. The base housing 10 is provided with a plurality of fourth locking holes (not shown). The fourth locking member is selectively connected to the plurality of fourth locking holes under the drive of the fourth return spring to position the seat body 2 on the mounting base 13 in different working positions. When the fourth release member 134 is pressed, the fourth traction rope pulls the fourth locking member away from the fourth locking hole, and then the seat body 2 is installed. When the seat body 2 is rotated to the appropriate direction, the fourth release member 134 is released, and the fourth locking member is engaged with the corresponding fourth locking hole under the push of the fourth return spring.

[0127] Figure 26 and Figure 27 An exemplary structure is shown in which the seat body 2 is detachably mounted on the mounting base 13. The mounting base 13 may be provided with an engagement mechanism 137, and the bottom of the seat body 2 is provided with an engagement rod 27 (see...). Figure 32The engaging mechanism 137 is used to detachably engage with the engaging rod 27. In some embodiments, the engaging mechanism 137 includes a plurality of engaging slots 1370 disposed on the mounting base 13 and a plurality of engaging hooks 1371 cooperating with the plurality of engaging slots 1370. The engaging rod 27 of the seat body 2 can be inserted into the engaging slots 1370 and locked by the engaging hooks 1371. The engaging mechanism 137 may also include a release member 1372, which is operably connected to each engaging hook 1371 for driving the engaging hooks 1371 to release the engaging rod 27. In some embodiments, a display device 1373 may be provided on the mounting base 13 for displaying whether the engaging rod 27 is locked by the engaging hooks 1371.

[0128] See Figure 27 The front of the base housing 10 may be provided with a clamping groove 1201 and a clamping device 129. The clamping device 129 may be locked in the clamping groove 1201 by a third locking mechanism 215 to form a channel for clamping the vehicle seat belt between the wall of the clamping groove 1201 and the clamping device 129 (see the description of the first embodiment above).

[0129] Figure 28 and Figure 29 The upper housing 1011 and front housing 1021 of the bottom housing 10 are omitted to facilitate the illustration of the internal structure of the bottom housing 10. In some embodiments, the first end of the strap clamp 129 is pivotally connected to the bottom housing 10 via a shaft 125, and a third locking mechanism 215 is disposed at the second end of the strap clamp 129. The third locking mechanism 215 is used to lock the relative position of the second end of the strap clamp 129 with respect to the base housing 10, thereby locking the strap clamp 129 in the clamping groove 1201.

[0130] See Figure 28 In some embodiments, the third locking mechanism 215 may include a third locking member 2151 capable of axial movement. A corresponding latching member 105, with a third locking hole 105 formed on the bottom housing 10, may also be mounted on the third locking member 2151. The third locking member 2151 can be inserted into or withdrawn from the third locking hole 1050. When the third locking member 2151 withdraws from the third locking hole 1050, the belt holder 129 can pivot about the shaft 125 to open the clamping groove 1201. When the third locking member 2151 is inserted into the third locking hole 1050, the belt holder 129 is locked in the clamping groove 1201. In some embodiments, the surface with the clamp 129 is provided with an operation hole 1290, and the third release member 2152 connected to the third locking member 2151 corresponds to the operation hole 1290. The user can operate the third release member 2152 through the operation hole 1290, thereby driving the third locking member 2151 to exit the third locking hole 1050.

[0131] See Figure 28 and Figure 29 The support frame 19 is installed inside the base housing 10. Unlike the first embodiment described above, in this second embodiment, the support frame 19 is connected to the base housing 10, for example, by fasteners, and the support frame 19 cannot slide relative to the base housing 10. In some embodiments, the support frame 19 mainly serves to enhance the structural strength of the base housing 10. In some embodiments, the support frame 19 may include two longitudinal rods 191, which can be connected by any suitable structure. In some embodiments, the top ends of the two longitudinal rods 191 can be connected by a U-shaped rod 197. The first upper limit member 311 can be connected to the U-shaped rod 197 and protrude forward from the top of the abutment portion 12.

[0132] In some embodiments, each longitudinal bar 191 of the support frame 19 may also be provided with a reinforcing bracket 1917, which is used to strengthen the structural strength at the bend of each longitudinal bar 191. In some embodiments, at least one crossbar 1922 may also be provided between two longitudinal bars 191 of the support frame 19.

[0133] See Figure 30 In some embodiments, the child safety seat 1000 may also include a top strap 4. A first end 41 of the top strap 4 is connected to the base 1, and a second end 42 of the top strap 4 may be provided with an anchor 43, which is used, for example, to connect to an anchor point on the back of the vehicle seat.

[0134] Figure 30 The upper, front, and rear housings of the base housing 10 are omitted to facilitate the illustration of an exemplary connection structure between the top strap 4 and the base 1. The first end 41 of the top strap 4 can extend into the interior of the base housing 10 and connect to the fastener 114. The fastener 114 can, for example, be fixed to the support frame 19. More specifically, the fastener 114, for example, along with the first upper limit member 311, is simultaneously fastened to the U-shaped rod 197 by fasteners.

[0135] In some embodiments, a support ring 315 is provided on the first upper limit member 311, and the second end 42 of the top strap 4 passes through the support ring 315 when it extends upward. That is, the middle part of the top strap 4 wraps around the support ring 315. When the vehicle brakes suddenly, the first upper limit member 311 is tightened by the top strap 4 while simultaneously tightening the second upper limit member 312. In this way, the forward tilting force of the seat body 2 can be transmitted to the vehicle seat through the upper limit structure 31 including the first upper limit member 311 and the top strap 4. In addition, the first upper limit member 311 is simultaneously subjected to two opposing tensile forces, which can cancel each other out, effectively preventing damage to the first upper limit member 311.

[0136] In some embodiments, the first upper limit member 311 includes a plate 3111 and a hook 3112 extending forward from the upper end of the plate 3111, and a support ring 315 may extend from the rear side of the plate 3111.

[0137] See Figure 31 and Figure 32 The seat body 2 includes a seat portion 21 and a backrest portion 22 extending upward from the seat portion 21, and a headrest 23 may be installed on the backrest portion 22. The housing of the seat body 2 may include a main body housing 201 and a bottom housing 202 mounted on the back of the main body housing. The main body housing 201 forms a space for a child to sit in. In some embodiments, both the main body housing 201 and the bottom housing 202 have portions corresponding to the seat portion 21, or both the main body housing 201 and the bottom housing 202 have portions corresponding to the seat portion 21 and the backrest portion 22.

[0138] See Figure 32 The bottom shell 202 is provided with multiple engaging rods 27, which are used to detachably connect with the engaging structure 137 of the mounting base 13. The main body shell 201 can be slidably mounted to the bottom shell 202, so that the tilt angle of the main body shell 201 relative to the bottom shell 202 can be adjusted.

[0139] See Figures 33 to 35 The exemplary structures of the main body housing 201 and the bottom housing 202 are shown. In some embodiments, the main body housing 201 is provided with a plurality of elongated holes 2010, and the bottom housing 202 is provided with a plurality of slide rods 2021, the plurality of slide rods 2021 and the plurality of elongated holes 2010 being slidably engaged.

[0140] like Figures 33 to 35As shown, three slide rods 2021 are mounted on the bottom shell 202. The three slide rods 2021 may include a front slide rod 20211, a middle slide rod 20212, and a rear slide rod 20213. The main body shell 201 is provided with elongated holes 2010 at the two ends of each slide rod 20213. In some embodiments, the middle slide rod 20212 is fitted into a locking rod 27.

[0141] See Figure 33 and Figure 35 The sliding position of the main body shell 201 relative to the bottom shell 202 can be locked by the fifth locking mechanism 235. Figure 33 and Figure 35 A schematic structure of the fifth locking mechanism 235 is shown. The fifth locking mechanism 235 may include a fifth locking member 2351 capable of axial movement, a fifth releasing member 2352, a fifth traction rope 2353 connected between the fifth locking member 2351 and the fifth releasing member 2352, and a fifth resetting member 2354 for driving the fifth locking member 2351 to reset. The fifth locking member 2351 may be mounted on a mounting bracket 2025 fixed to the bottom shell 202, the fifth resetting member 2354 may abut against the fifth locking member 2351, and the fifth releasing member 2352 may be mounted, for example, on the front side of the bottom shell 202. The main body shell 201 may be provided with a plurality of fifth locking holes 2350, and the fifth locking member 1311 may be selectively connected to the plurality of fifth locking holes 2350 to position the main body shell 201 in different sliding positions to meet the riding needs of children.

[0142] See you again Figure 24 and Figure 25 In some embodiments, the child safety seat 1000 further includes at least one limiting structure 3. The seat body 2 and the base 1 can be connected by at least one limiting structure 3, which is used to apply a pulling force to the seat body 2 to prevent the seat body 2 from tilting forward relative to the base 1 when the vehicle brakes unexpectedly, thus preventing potential danger.

[0143] See Figure 24 In some embodiments, the limiting structure 3 includes an upper limit structure 31. When the seat body 2 is in the forward position and the vehicle suddenly brakes, the upper end of the bottom shell 202 of the seat body 2 engages with the base 1 through the upper limit structure 31. The upper limit structure 31 pulls the backrest 22 of the seat body 2, which can effectively prevent the seat body 2 from tilting forward relative to the base 1.

[0144] See also Figure 24In some embodiments, the upper limit structure 31 includes a first upper limit member 311 and a second upper limit member 312. The first upper limit member 311 is located at the top of the abutment portion 12. In some embodiments, as previously described, the first upper limit member 311 may be disposed at the upper end of the U-shaped rod 197 of the support frame 19, protruding forward relative to the abutment portion 12. (Refer to reference...) Figure 34 The second upper limit member 312 can be disposed on the top of the base shell 202. When the seat body 2 is in the forward position, the first upper limit member 311 and the second upper limit member 312 cooperate, for example, with a clearance fit. It should be noted that when the seat body 2 is in the forward position, the first upper limit member 311 and the second upper limit member 312 do not necessarily need to maintain a constant contact with each other. The first upper limit member 311 and the second upper limit member 312 only need to contact each other when the seat body 2 is tilted forward relative to the base 1, applying a backward pulling force to the backrest portion 22 of the seat body 2.

[0145] See also Figure 24 In some embodiments, the first upper limit member 311 and the second upper limit member 312 may have a hook-shaped cross-section, allowing them to hook onto each other. In some embodiments, both the first upper limit member 311 and the second upper limit member 312 may extend along an arc, thus providing sufficient contact area without interfering with the rotation of the seat body 2 relative to the base 1. Of course, the first upper limit member 311 and the second upper limit member 312 may have other implementations beyond the examples described above.

[0146] See Figure 34 and Figure 35 In some embodiments, the second upper limit member 312 is connected to the slide bar 20213, for example, via a centering member 313.

[0147] See Figure 25 In some embodiments, the limiting structure 3 includes a lower limiting structure 32. When the seat body 2 is in the rearward position and the vehicle suddenly brakes, the front end of the bottom shell 202 of the seat body 2 engages with the base 1 through the lower limiting structure 32. The lower limiting structure 32 pulls the seat part 21 of the child seat, which can effectively prevent the seat body 2 from tilting forward relative to the base 1.

[0148] See also Figure 25In some embodiments, the lower limiting structure 32 includes a first lower limiting member 321 and a second lower limiting member 322. The first lower limiting member 321 extends from the base 1 toward the seat portion 21, and the second lower limiting member 322 is disposed at the front end of the bottom shell 202. When the seat body 2 is in the rearward position, the first lower limiting member 321 and the second lower limiting member 322 cooperate, for example, with a clearance fit. It should be noted that when the seat body 2 is in the rearward position, the first lower limiting member 321 and the second lower limiting member 322 do not necessarily need to maintain a constant contact with each other. The first lower limiting member 321 and the second lower limiting member 322 only need to contact each other when the seat body 2 is tilted forward relative to the base 1, applying a rearward pulling force to the seat portion 21 of the seat body 2.

[0149] See also Figure 25 In some embodiments, at least one of the first lower limiting member 321 and the second lower limiting member 322 has a hook-shaped cross-section, and the two are hooked together. See also Figure 29 In some embodiments, the first lower limiting member 321 includes, for example, one, two, or more hook-like members connected to the support frame 19. See also Figure 34 and Figure 35 The second lower limiting member 322 includes, for example, one, two, or more retaining rings extending from the bottom shell 202. Of course, the embodiments of the first lower limiting member 321 and the second lower limiting member 322 are not limited to the examples described above. In some embodiments, each retaining ring of the second lower limiting member 322 may be connected to the slide bar 20211 and / or a locking rod 27 via a centering member 324.

[0150] According to the present invention, when the tilt angle of the main body shell 201 is changed, the bottom shell 202 does not move relative to the base 1, so it does not hinder the cooperation between the second upper limit member 312 of the bottom shell 202 and the first upper limit member 311 of the base 1, or the cooperation between the second lower limit member 322 of the bottom shell 202 and the first lower limit member 321 of the base 1.

[0151] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0152] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A child safety seat, characterized in that, include: The base includes a base housing and a support frame housed within the base housing; A seat body, which is mounted on the base and has a forward position and a rearward position relative to the base; as well as At least one limiting structure is disposed between the seat body and the support frame. The base housing has an opening for the limiting structure to pass through, and the at least one limiting structure includes an upper limiting structure and a lower limiting structure; the upper limiting structure includes a first upper limiting member and a second upper limiting member, the first upper limiting member is disposed at the upper end of the support frame and exposed outside the opening, and the second upper limiting member is disposed on the back of the seat body; When the seat body is in the forward position, the seat body and the support frame are engaged by the upper limit structure, and the lower limit structure is in a separated state; when the seat body is in the rearward position, the seat body and the support frame are engaged by the lower limit structure, and the upper limit structure is in a separated state.

2. The child safety seat according to claim 1, characterized in that, The child safety seat also includes a top strap, a first end of which is connected to the first upper limit member, and a second end of which is provided with an anchor for connecting to the vehicle.

3. The child safety seat according to claim 2, characterized in that, The first upper limit member is provided with a support ring, and the first end of the top strap is connected to the support frame and passes around the support ring.

4. The child safety seat according to claim 1 or 2, characterized in that, The child safety seat also includes a mounting bracket, through which the seat body is mounted on the support frame, the support frame being configured to slide operably relative to the base housing to change the tilt angle of the seat body relative to the base housing. The opening includes a first opening disposed at the top of the base housing, and the upper end of the support frame extends from the first opening so that the first upper limit member is exposed outside the base housing; When the support frame slides relative to the base housing, the first upper limit member and the second upper limit member remain connected.

5. The child safety seat according to claim 4, characterized in that, The seat body has a pivot axis, through which the seat body is pivotally connected to the mounting base, thereby allowing it to rotate between the forward position and the rearward position. The lower limit structure includes a first lower limit component and a second lower limit component. The first lower limit component extends from the support frame through the mounting base to the seat body. The second lower limit component is configured to protrude from the front side of the seat body. When the seat body is in a rearward position relative to the base, the first lower limit component and the second lower limit component cooperate with each other.

6. The child safety seat according to claim 4, characterized in that, The base housing is provided with a sliding rail, and the support frame is slidably engaged with the sliding rail; The sliding track is provided with a plurality of first locking holes; the support frame is provided with a first locking mechanism, the first locking mechanism including a first locking member; the first locking member selectively engages with one of the plurality of first locking holes to position the support frame at different positions on the sliding track.

7. The child safety seat according to claim 6, characterized in that, The child safety seat also includes: A first locking mechanism is used to lock the sliding between the support frame and the base housing, the first locking mechanism comprising: The first locking element is disposed in the mounting base and slides in engagement with the guide hole on the support frame; Multiple first locking holes are provided on the base housing; and A return spring, disposed between the mounting base and the first locking member, is used to push the first locking member to engage with the first locking hole. The first locking member passes through the guide hole and selectively connects to one of the plurality of first locking holes, thereby positioning the support frame at a plurality of different positions on the base housing.

8. The child safety seat according to claim 7, characterized in that, The first locking mechanism further includes: A first unlocking element is provided at the handle at the front end of the mounting base; and The first traction rope has one end connected to the first release element and the other end connected to the first locking element; The first release member drives the first locking member to exit from the corresponding first lock hole via the first traction rope.

9. The child safety seat according to claim 5, characterized in that, The child safety seat also includes: A second locking mechanism is used to lock the pivoting between the seat body and the mounting base. The second locking mechanism is located between the seat body and the mounting base and includes: A second locking element is disposed on the seat body and is axially movable relative to the seat body; and Multiple second locking holes are spaced apart on the mounting base. The second locking member is selectively connected to one of the plurality of second locking holes, thereby locking the seat body in a forward or rearward position.

10. The child safety seat according to any one of claims 4 to 9, characterized in that, The base housing includes a base and an abutment extending upward from the base, the abutment being used to abut against the back of a vehicle seat; the seat body is pivotally mounted to the base via the mounting seat, the first opening is located at the top of the abutment, the abutment is provided with a clamping groove and a clamping device; the first end of the clamping device is pivotally connected to the base housing, the second end of the clamping device is provided with a third locking mechanism, the clamping device is locked in the clamping groove by the third locking mechanism to clamp the vehicle seat belt at the abutment.

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